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% This file was created by the TYPO3 extension
% bib
% --- Timezone: CEST
% Creation date: 2024-05-22
% Creation time: 05-14-50
% --- Number of references
% 401
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@Article { WeissMPOBS2024,
title = {Improved Prediction of the Flow in Cylindrical Critical Flow Venturi Nozzles Using a Transitional Model},
journal = {Flow, Turbulence and Combustion},
year = {2024},
month = {5},
day = {18},
tags = {8.4,8.41},
DOI = {10.1007/s10494-024-00553-3},
author = {Weiss, S and Mickan, B and Polansky, J and Oberleithner, K and B{\"a}r, M and Schmelter, S}
}
@Article { vonKenneBN2024,
title = {Hydrodynamic synchronization of elastic cilia: How surface effects determine the characteristics of metachronal waves},
journal = {Phys. Rev. E},
year = {2024},
month = {5},
day = {16},
volume = {109},
number = {5},
pages = {054407},
tags = {8.4,8.41,8.43},
DOI = {10.1103/PhysRevE.109.054407},
author = {von Kenne, A and B{\"a}r, M and Niedermayer, T}
}
@Article { MarschallFSHE2024,
title = {Bayesian uncertainty evaluation applied to the tilted-wave interferometer},
journal = {Opt. Express},
year = {2024},
month = {5},
day = {6},
volume = {32},
number = {11},
pages = {18664--18683},
tags = {8.4,8.42,Form},
DOI = {10.1364/OE.524241},
author = {Marschall, M and Fortmeier, I and Stavridis, M and Hughes, F and Elster, C}
}
@Article { BernburgEK2024,
title = {Flexible Bayesian reliability demonstration testing},
journal = {Applied Stochastic Models in Business and Industry},
year = {2024},
month = {4},
day = {26},
tags = {8.4,8.42,Stichprobenverf},
DOI = {10.1002/asmb.2863},
author = {Bernburg, H and Elster, C and Klauenberg, K}
}
@Article { BocklerdMSSBKBWTTWGSG2024,
title = {Metrology infrastructure for high-pressure gas and liquified hydrogen flows. A brief outline of the MetHyInfra project, measurement challenges, and first results},
journal = {Measurement},
year = {2024},
month = {4},
day = {7},
volume = {232},
tags = {8.41, 8.4, MetHyInfra},
DOI = {https://doi.org/10.1016/j.measurement.2024.114675},
author = {B{\"o}ckler, H.-B. and de Huu, M. and Maury, R. and Schmelter, S. and Schakel, M.D. and B{\"u}ker, O. and Kutin, J. and Bobovnik, G. and Wedler, C. and Trusler, J.P.M. and Thol, M. and Weiss, S. and G{\"u}nz, C. and Schumann, D. and Gugole, F.}
}
@Article { AmanovaME2024,
title = {Finding the input features that reduce the entropy of a neural network’s prediction},
journal = {Applied Intelligence},
year = {2024},
month = {1},
day = {25},
tags = {8.4,8.42,ML},
DOI = {10.1007/s10489-024-05277-5},
author = {Amanova, N and Martin, J and Elster, C}
}
@Article { 10.3389/frai.2024.1330919,
title = {Benchmarking the influence of pre-training on explanation performance in MR image classification},
journal = {Frontiers in Artificial Intelligence},
year = {2024},
volume = {7},
abstract = {Convolutional Neural Networks (CNNs) are frequently and successfully used in medical prediction tasks. They are often used in combination with transfer learning, leading to improved performance when training data for the task are scarce. The resulting models are highly complex and typically do not provide any insight into their predictive mechanisms, motivating the field of “explainable” artificial intelligence (XAI). However, previous studies have rarely quantitatively evaluated the “explanation performance” of XAI methods against ground-truth data, and transfer learning and its influence on objective measures of explanation performance has not been investigated. Here, we propose a benchmark dataset that allows for quantifying explanation performance in a realistic magnetic resonance imaging (MRI) classification task. We employ this benchmark to understand the influence of transfer learning on the quality of explanations. Experimental results show that popular XAI methods applied to the same underlying model differ vastly in performance, even when considering only correctly classified examples. We further observe that explanation performance strongly depends on the task used for pre-training and the number of CNN layers pre-trained. These results hold after correcting for a substantial correlation between explanation and classification performance.},
tags = {8.4,8.44},
web_url = {https://www.frontiersin.org/articles/10.3389/frai.2024.1330919},
ISSN = {2624-8212},
DOI = {10.3389/frai.2024.1330919},
author = {Oliveira, Marta and Wilming, Rick and Clark, Benedict and Budding, C{\'e}line and Eitel, Fabian and Ritter, Kerstin and Haufe, Stefan}
}
@Article { WinklerNFHLDB2023,
title = {Global Sensitivity Analysis and Uncertainty Quantification for Simulated Atrial Electrocardiograms},
journal = {Metrology},
year = {2023},
month = {12},
day = {26},
volume = {3},
number = {1},
pages = {1-28},
tags = {8.4,8.41,8.43, UQ},
DOI = {https://doi.org/10.3390/metrology3010001},
author = {Winkler, Benjamin and Nagel, Claudia and Farchmin, Nando and Heidenreich, Sebastian and Loewe, Axel and D{\"o}ssel, Olaf and B{\"a}r, Markus}
}
@Article { MehariS2023,
title = {Towards Quantitative Precision for ECG Analysis: Leveraging State Space Models, Self-Supervision and Patient Metadata.},
journal = {IEEE J Biomed Health Inform},
year = {2023},
month = {11},
day = {7},
volume = {27},
number = {11},
pages = {5326-5334},
tags = {8.4, 8.41},
DOI = {10.1109/JBHI.2023.3310989},
author = {Mehari, Temesgen and Strodthoff, Nils}
}
@Article { KlauenbergGF2023,
title = {Propagation of conformity statements in compliance with the GUM and ISO 17025},
journal = {Metrologia},
year = {2023},
month = {9},
day = {22},
volume = {60},
number = {5},
pages = {054004},
tags = {8.4,8.42,Messunsicherheit},
DOI = {10.1088/1681-7575/acf3eb},
author = {Klauenberg, K and Greenwood, J and Foyer, G}
}
@Article { KastnerMHMPCWHRE2023,
title = {Compressed AFM-IR hyperspectral nanoimaging},
journal = {Measurement Science and Technology},
year = {2023},
month = {9},
day = {21},
tags = {8.4,8.42,LargeScaleDataAna,Regression},
state = {accepted},
DOI = {10.1088/1361-6501/acfc27},
author = {K{\"a}stner, B and Marschall, M and Hornemann, A and Metzner, S and Patoka, P and Cortes, S and W{\"u}bbeler, G and Hoehl, A and R{\"u}hl, E and Elster, C}
}
@Article { HegemannH2023,
title = {PyThia: A Python package for Uncertainty Quantification based on non-intrusive polynomial chaos expansions},
journal = {Journal of Open Source Software},
year = {2023},
month = {9},
day = {15},
volume = {8},
number = {89},
pages = {5489},
tags = {8.4,8.43,UQ},
DOI = {https://doi.org/10.21105/joss.05489},
author = {Hegemann, Nando and Heidenreich, Sebastian}
}
@Article { FallerAvME2023,
title = {About the Generalizability of Deep Learning based Image Quality Assessment in Mammography},
journal = {Machine Learning: Science and Technology},
year = {2023},
month = {9},
day = {12},
tags = {8.4,8.42,ML},
state = {accepted},
DOI = {10.1088/2632-2153/acf914},
author = {Faller, J and Amanova, N and van Engen, R E and Martin, J and Elster, C}
}
@Article { GilletteGNBWWBSDPL2023,
title = {MedalCare-XL: 16,900 healthy and pathological synthetic 12 lead ECGs from electrophysiological simulations},
journal = {Scientific Data},
year = {2023},
month = {8},
day = {8},
volume = {10},
number = {531 (2023)},
tags = {8.4,8.41,8.43},
DOI = {https://doi.org/10.1038/s41597-023-02416-4},
author = {Gillette, Karli and Gsell, Matthias A. F. and Nagel, Claudia and Bender, Jule and Winkler, Benjamin and Williams, Steven E. and B{\"a}r, Markus and Sch{\"a}ffter, Tobias and D{\"o}ssel, Olaf and Plank, Gernot and Loewe, Axel}
}
@Article { WeissenbrunnerESS2023,
title = {A virtual flow meter downstream of various elbow configurations},
journal = {Metrologia},
year = {2023},
month = {7},
day = {17},
tags = {8.4,8.41,Flow, UQ},
state = {accepted},
DOI = {DOI 10.1088/1681-7575/ace7d6},
author = {Weissenbrunner, Andreas and Ekat, Ann-Kathrin and Straka, Martin and Schmelter, Sonja}
}
@Article { MarschallWSE2023,
title = {Machine learning based priors for Bayesian inversion in MR imaging},
journal = {Metrologia},
year = {2023},
month = {7},
day = {4},
volume = {60},
number = {4},
tags = {8.4,8.42,LargeScaleDataAna,ML},
DOI = {10.1088/1681-7575/ace3c2},
author = {Marschall, M and W{\"u}bbeler, G and Schm{\"a}hling, F and Elster, C}
}
@Article { BrahmaKMSK2023,
title = {Data-efficient Bayesian learning for radial dynamic MR reconstruction},
journal = {Medical Physics},
year = {2023},
month = {6},
day = {27},
tags = {8.4,8.42,ML,Messunsicherheit,LargeScaleDataAna},
DOI = {10.1002/mp.16543},
author = {Brahma, S and Kolbitsch, C and Martin, J and Sch{\"a}ffter, T and Kofler, A}
}
@Article { MarschallWBE2023,
title = {On modelling of artefact instability in interlaboratory comparisons},
journal = {Metrologia},
year = {2023},
month = {6},
day = {26},
tags = {8.4,8.42,KC,Messunsicherheit},
state = {accepted},
DOI = {10.1088/1681-7575/ace18f},
author = {Marschall, M and W{\"u}bbeler, G and Borys, M and Elster, C}
}
@Article { KokDWE2023,
title = {Virtual experiments for the assessment of data analysis and uncertainty quantification methods in scatterometry},
journal = {Metrologia},
year = {2023},
month = {5},
day = {19},
tags = {8.4,8.42,Messunsicherheit,Form},
state = {accepted},
DOI = {10.1088/1681-7575/acd6fd},
author = {Kok, G and Dijk, v M and W{\"u}bbeler, G and Elster, C}
}
@Article { StrodthoffMNASGKHDLBS2023,
title = {PTB-XL+, a comprehensive electrocardiographic feature dataset},
journal = {Scientific Data},
year = {2023},
month = {5},
day = {13},
volume = {10},
number = {279},
tags = {8.4,8.41},
DOI = {https://doi.org/10.1038/s41597-023-02153-8},
author = {Strodthoff, Nils and Mehari, Temesgen and Nagel, Claudia and Aston, Philip J. and Sundar, Ashish and Graff, Claus and Kanters, J{\o}rgen K. and Haverkamp, Wilhelm and D{\"o}ssel, Olaf and Loewe, Axel and B{\"a}r, Markus and Schaeffter, Tobias}
}
@Article { EigelFHT2023,
title = {Adaptive Nonintrusive Reconstruction of Solutions to High-Dimensional Parametric PDEs},
journal = {Methods and Algorithms for Scientific Computing},
year = {2023},
month = {4},
day = {30},
volume = {45},
number = {2},
pages = {A457-A479},
tags = {8.4,8.43},
DOI = {https://doi.org/10.1137/21M1461988},
author = {Eigel, Martin and Farchmin, Nando and Heidenreich, Sebastian and Trunschke, P.}
}
@Article { WeissPBOS2023,
title = {Derivation and validation of a reference data-based real gas model for hydrogen},
journal = {Elsevier International Journal of Hydrogen Energy},
year = {2023},
month = {3},
day = {30},
tags = {8.41,Flow},
state = {accepted},
DOI = {https://doi.org/10.1016/j.ijhydene.2023.03.073},
author = {Weiss, S. and Polansky, J. and B{\"a}r, M. and Oberleithner, K. and Schmelter, S.}
}
@Article { MarschallWSE2022,
title = {Generative models and Bayesian inversion using Laplace approximation},
journal = {Computational Statistics},
year = {2023},
month = {3},
day = {16},
tags = {8.4,8.42,ML,LargeScaleDataAna},
DOI = {10.1007/s00180-023-01345-5},
author = {Marschall, M and W{\"u}bbeler, G and Schm{\"a}hling, F and Elster, C}
}
@Article { WebnerPKS2023,
title = {Sensitivity analysis of threshold parameters in slug detection algorithms},
journal = {International Journal of Multiphase Flow},
year = {2023},
month = {1},
volume = {158},
pages = {104278},
tags = {8.41,8.4, Flow},
web_url = {10.1016/j.ijmultiphaseflow.2022.104278},
DOI = {10.1016/j.ijmultiphaseflow.2022.104278},
author = {Webner, F. and Polansky, J. and Knotek, S. and Schmelter, S.}
}
@Article { cesnaite_alterations_2023,
title = {Alterations in rhythmic and non‐rhythmic resting‐state {EEG} activity and their link to cognition in older age},
journal = {NeuroImage},
year = {2023},
volume = {268},
pages = {119810},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S1053811922009314},
web_url_date = {2023-08-22},
language = {en},
ISSN = {10538119},
DOI = {10.1016/j.neuroimage.2022.119810},
author = {Cesnaite, Elena and Steinfath, Paul and Jamshidi Idaji, Mina and Stephani, Tilman and Kumral, Deniz and Haufe, Stefan and Sander, Christian and Hensch, Tilman and Hegerl, Ulrich and Riedel-Heller, Steffi and R{\"o}hr, Susanne and Schroeter, Matthias L. and Witte, A．Veronica and Villringer, Arno and Nikulin, Vadim V.}
}
@Article { pellegrini_identifying_2023,
title = {Identifying good practices for detecting inter-regional linear functional connectivity from {EEG}},
journal = {NeuroImage},
year = {2023},
volume = {277},
pages = {120218},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S1053811923003695},
web_url_date = {2023-08-22},
language = {en},
ISSN = {10538119},
DOI = {10.1016/j.neuroimage.2023.120218},
author = {Pellegrini, Franziska and Delorme, Arnaud and Nikulin, Vadim and Haufe, Stefan}
}
@Article { cai_bayesian_2023,
title = {Bayesian {Algorithms} for {Joint} {Estimation} of {Brain} {Activity} and {Noise} in {Electromagnetic} {Imaging}},
journal = {IEEE Transactions on Medical Imaging},
year = {2023},
volume = {42},
number = {3},
pages = {762--773},
tags = {8.4,8.44},
web_url = {https://ieeexplore.ieee.org/document/9932439/},
web_url_date = {2023-08-22},
ISSN = {0278-0062, 1558-254X},
DOI = {10.1109/TMI.2022.3218074},
author = {Cai, Chang and Kang, Huicong and Hashemi, Ali and Chen, Dan and Diwakar, Mithun and Haufe, Stefan and Sekihara, Kensuke and Wu, Wei and Nagarajan, Srikantan S.}
}
@Article { haufe_gait_2023,
title = {Gait {Event} {Prediction} {Using} {Surface} {Electromyography} in {Parkinsonian} {Patients}},
journal = {Bioengineering},
year = {2023},
volume = {10},
number = {2},
pages = {212},
abstract = {Gait disturbances are common manifestations of Parkinson’s disease (PD), with unmet therapeutic needs. Inertial measurement units (IMUs) are capable of monitoring gait, but they lack neurophysiological information that may be crucial for studying gait disturbances in these patients. Here, we present a machine learning approach to approximate IMU angular velocity profiles and subsequently gait events using electromyographic (EMG) channels during overground walking in patients with PD. We recorded six parkinsonian patients while they walked for at least three minutes. Patient-agnostic regression models were trained on temporally embedded EMG time series of different combinations of up to five leg muscles bilaterally (i.e., tibialis anterior, soleus, gastrocnemius medialis, gastrocnemius lateralis, and vastus lateralis). Gait events could be detected with high temporal precision (median displacement of {\textbackslashtextless}50 ms), low numbers of missed events ({\textbackslashtextless}2\%), and next to no false-positive event detections ({\textbackslashtextless}0.1\%). Swing and stance phases could thus be determined with high fidelity (median F1-score of {\textbackslashtextasciitilde}0.9). Interestingly, the best performance was obtained using as few as two EMG probes placed on the left and right vastus lateralis. Our results demonstrate the practical utility of the proposed EMG-based system for gait event prediction, which allows the simultaneous acquisition of an electromyographic signal to be performed. This gait analysis approach has the potential to make additional measurement devices such as IMUs and force plates less essential, thereby reducing financial and preparation overheads and discomfort factors in gait studies.},
tags = {8.4, 8.44},
web_url = {https://www.mdpi.com/2306-5354/10/2/212},
web_url_date = {2023-08-22},
language = {en},
ISSN = {2306-5354},
DOI = {10.3390/bioengineering10020212},
author = {Haufe, Stefan and Isaias, Ioannis U. and Pellegrini, Franziska and Palmisano, Chiara}
}
@Article { cai_bayesian_2023-1,
title = {Bayesian adaptive beamformer for robust electromagnetic brain imaging of correlated sources in high spatial resolution},
journal = {IEEE Transactions on Medical Imaging},
year = {2023},
pages = {1--1},
tags = {8.4,8.44},
web_url = {https://ieeexplore.ieee.org/document/10068553/},
web_url_date = {2023-08-22},
ISSN = {0278-0062, 1558-254X},
DOI = {10.1109/TMI.2023.3256963},
author = {Cai, Chang and Long, Yuanshun and Ghosh, Sanjay and Hashemi, Ali and Gao, Yijing and Diwakar, Mithun and Haufe, Stefan and Sekihara, Kensuke and Wu, Wei and Nagarajan, Srikantan S.}
}
@Article { del_vecchio_del_vecchio_pallidal_2023,
title = {Pallidal {Recordings} in {Chronically} {Implanted} {Dystonic} {Patients}: {Mitigation} of {Tremor}-{Related} {Artifacts}},
journal = {Bioengineering},
year = {2023},
volume = {10},
number = {4},
pages = {476},
abstract = {Low-frequency oscillatory patterns of pallidal local field potentials (LFPs) have been proposed as a physiomarker for dystonia and hold the promise for personalized adaptive deep brain stimulation. Head tremor, a low-frequency involuntary rhythmic movement typical of cervical dystonia, may cause movement artifacts in LFP signals, compromising the reliability of low-frequency oscillations as biomarkers for adaptive neurostimulation. We investigated chronic pallidal LFPs with the PerceptTM PC (Medtronic PLC) device in eight subjects with dystonia (five with head tremors). We applied a multiple regression approach to pallidal LFPs in patients with head tremors using kinematic information measured with an inertial measurement unit (IMU) and an electromyographic signal (EMG). With IMU regression, we found tremor contamination in all subjects, whereas EMG regression identified it in only three out of five. IMU regression was also superior to EMG regression in removing tremor-related artifacts and resulted in a significant power reduction, especially in the theta-alpha band. Pallido-muscular coherence was affected by a head tremor and disappeared after IMU regression. Our results show that the Percept PC can record low-frequency oscillations but also reveal spectral contamination due to movement artifacts. IMU regression can identify such artifact contamination and be a suitable tool for its removal.},
tags = {8.4, 8.44},
web_url = {https://www.mdpi.com/2306-5354/10/4/476},
web_url_date = {2023-08-22},
language = {en},
ISSN = {2306-5354},
DOI = {10.3390/bioengineering10040476},
author = {Del Vecchio Del Vecchio, Jasmin and Hanafi, Ibrahem and Pozzi, Nicol{\'o} Gabriele and Capetian, Philipp and Isaias, Ioannis U. and Haufe, Stefan and Palmisano, Chiara}
}
@Phdthesis { Olbrich2022,
title = {Quantitative methods for the characterization of separated and intermittent multiphase flow patterns},
year = {2022},
month = {12},
day = {20},
tags = {8.4, 8.41, flow},
school = {TU Berlin},
DOI = {https://doi.org/10.14279/depositonce-16659},
author = {Olbrich, Marc}
}
@Article { MartinE2021_2,
title = {Errors-in-Variables for deep learning: rethinking aleatoric uncertainty},
journal = {Neural Processing Letters},
year = {2022},
month = {11},
day = {1},
tags = {8.4,8.42,ML},
ISSN = {1573-773X},
DOI = {10.1007/s11063-022-11066-3},
author = {Martin, J and Elster, C}
}
@Conference { SchmelterKOB2022,
title = {Comparison of different slug frequency calculation methods for the validation of two-phase flow simulations},
year = {2022},
month = {10},
day = {21},
tags = {8.4,8.41,Flow},
booktitle = {19th International Flow Measurement Conference (FLOMEKO)},
event_place = {Chongqing, China},
event_name = {19th International Flow Measurement Conference (FLOMEKO)},
event_date = {17-21.10.2022},
author = {Schmelter, S. and Knotek, S. and Olbrich, M. and B{\"a}r, M.}
}
@Conference { WeissMOBS2022,
title = {Numerical investigation of boundary layer effects within cylindrical critical flow Venturi nozzles},
year = {2022},
month = {10},
day = {21},
tags = {8.4,8.41,Flow},
booktitle = {19th International Flow Measurement Conference (FLOMEKO)},
event_place = {Chongqing, China},
event_name = {19th International Flow Measurement Conference (FLOMEKO)},
event_date = {17-21.10.2022},
author = {Weiss, S. and Mickan, B. and Oberleithner, K. and B{\"a}r, M. and Schmelter, S.}
}
@Article { HufnagelMKAKSSK2022,
title = {3D model-based super-resolution motion-corrected cardiac T1 mapping},
journal = {Physics in Medicine \& Biology},
year = {2022},
month = {10},
day = {20},
tags = {8.4,8.42},
DOI = {10.1088/1361-6560/ac9c40},
author = {Hufnagel, S and Metzner, S and Kerkering, K M and Aigner, C S and Kofler, A and Schulz-Menger, J and Sch{\"a}ffter, T and Kolbitsch, C}
}
@Conference { BocklerdMSSB2022,
title = {Metrology infrastructure for high-pressure gas and liquified hydrogen flows},
year = {2022},
month = {10},
tags = {8.4,8.41,Flow},
booktitle = {19th International Flow Measurement Conference (FLOMEKO)},
event_place = {Chongqing, China},
event_name = {19th International Flow Measurement Conference (FLOMEKO)},
event_date = {17-21.10.2022},
author = {B{\"o}ckler, H.-B. and de Huu, M. and Maury, R. and Schmelter, S. and Schakel, M.D. and B{\"u}ker, O.}
}
@Article { MetznerKMWWBHRE2022,
title = {Assessment of Subsampling Schemes for Compressive Nano-FTIR Imaging},
journal = {IEEE Transactions on Instrumentation and Measurement},
year = {2022},
month = {9},
day = {12},
volume = {71},
pages = {1-8},
tags = {8.4,8.42,LargeScaleDataAna},
DOI = {10.1109/TIM.2022.3204072},
author = {Metzner, S and K{\"a}stner, B and Marschall, M and W{\"u}bbeler, G and Wundrack, S and Bakin, A and Hoehl, A and R{\"u}hl, E and Elster, C}
}
@Article { OlbrichRKLvBOS2022,
title = {Deep learning based liquid level extraction from video observations of gas-liquid flows},
journal = {International Journal of Multiphase Flow},
year = {2022},
month = {9},
day = {10},
tags = {8.4,8.41,Flow,ML},
DOI = {https://doi.org/10.1016/j.ijmultiphaseflow.2022.104247},
author = {Olbrich, M. and Riazy, L. and Kretz, T. and Leonard, T. and van Putten, D.S. and B{\"a}r, M. and Oberleithner, K. and Schmelter, S.}
}
@Article { BuranNB2022,
title = {Suppression of fibrillatory dynamics consisting of stable rotors by periodic pacing},
journal = {New Journal of Physics},
year = {2022},
month = {8},
day = {23},
volume = {24},
number = {August 2022},
tags = {8.4,8.41},
DOI = {https://doi.org/10.1088/1367-2630/ac8571},
author = {Buran, P. and Niedermayer, T. and B{\"a}r, M.}
}
@Phdthesis { HarrenneeHoffmann2022,
title = {Investigating deep ensembles for the tilted-wave interferometer},
year = {2022},
month = {8},
day = {15},
keywords = {publiziert},
tags = {8.4,8.42,ML,Form},
url = {https://depositonce.tu-berlin.de/bitstream/11303/17264/4/harren_lara.pdf},
school = {TU Berlin},
type = {PhD Thesis},
DOI = {10.14279/depositonce-16044},
author = {Harren n{\'e}e Hoffmann, L}
}
@Phdthesis { Worlitzer2022,
title = {Collective motion and clustering in active polar fluids},
year = {2022},
month = {8},
day = {10},
tags = {8.4,8.43},
url = {https://www.depositonce.tu-berlin.de/bitstream/11303/17276/4/worlitzer_vasco.pdf},
school = {TU Berlin},
type = {PhD Thesis},
DOI = {http://dx.doi.org/10.14279/depositonce-16056},
author = {Worlitzer, V. M.}
}
@Article { SchmahlingME2021,
title = {A framework for benchmarking uncertainty in deep regression},
journal = {Applied Intelligence},
year = {2022},
month = {8},
day = {9},
tags = {8.4,8.42,ML},
DOI = {10.1007/s10489-022-03908-3},
author = {Schm{\"a}hling, Franko and Martin, J{\"o}rg and Elster, Clemens}
}
@Article { StrakaWKHS2022,
title = {Simulation Uncertainty for a Virtual Ultrasonic Flow Meter},
journal = {Metrology},
year = {2022},
month = {7},
day = {18},
volume = {2},
number = {3},
pages = {335-359},
tags = {8.41,8.4,Flow,UQ},
DOI = {https://doi.org/10.3390/metrology2030021},
author = {Straka, Martin and Weissenbrunner, Andreas and Koglin, Christian and H{\"o}hne, Christian and Schmelter, Sonja}
}
@Article { AmanovaME2022,
title = {Explainability for deep learning in mammography image quality assessment},
journal = {Machine Learning: Science and Technology},
year = {2022},
month = {6},
day = {17},
tags = {8.4,8.42,ML},
state = {accepted},
DOI = {10.1088/2632-2153/ac7a03},
author = {Amanova, N and Martin, J and Elster, C}
}
@Article { WorlitzerJGBHEAB2022,
title = {Biophysical aspects underlying the swarm to biofilm transition},
journal = {Science Advances},
year = {2022},
month = {6},
day = {15},
volume = {8},
number = {24},
tags = {8.4,8.43,ActFluid},
DOI = {DOI: 10.1126/sciadv.abn8152},
author = {Worlitzer, V. M. and Jose, A. and Grinberg, I. and B{\"a}r, M. and Heidenreich, S. and Eldar, A. and Ariel, G. and Be´er, A.}
}
@Article { KokWE2022,
title = {Impact of Imperfect Artefacts and the Modus Operandi on
Uncertainty Quantification Using Virtual Instruments},
journal = {Metrology},
year = {2022},
month = {6},
day = {12},
volume = {2},
pages = {311--319},
tags = {8.4,8.42,Messunsicherheit,Form},
DOI = {10.3390/metrology2020019},
author = {Kok, G and W{\"u}bbeler, G and Elster, C}
}
@Phdthesis { Farchmin2022,
title = {Adaptive and non-intrusive uncertainty quantification for high-dimensional parametric partial differential equations},
year = {2022},
month = {5},
day = {17},
tags = {8.4,8.43},
url = {https://www.depositonce.tu-berlin.de/bitstream/11303/16752/4/farchmin_nando.pdf},
school = {TU Berlin},
type = {PhD Thesis},
DOI = {http://dx.doi.org/10.14279/depositonce-15530},
author = {Farchmin, N.}
}
@Article { HerrWZAFL2022,
title = {Spontaneous polarization and cell guidance on asymmetric nanotopography},
journal = {Communications Physics},
year = {2022},
month = {5},
day = {11},
volume = {5},
number = {114},
tags = {8.4,8.43},
DOI = {https://doi.org/10.1038/s42005-022-00889-0},
author = {Herr, C. and Winkler, B. and Ziebert, F. and Aranson, I. S. and Fourkas, J. T. and Losert, W.}
}
@Article { MetznerWKE2022,
title = {A comparison of two data analysis approaches for quantitative Magnetic Resonance Imaging},
journal = {Measurement Science and Technology},
year = {2022},
month = {4},
day = {5},
volume = {33},
number = {7},
pages = {075401},
tags = {8.4,8.42,LargeScaleDataAna},
DOI = {10.1088/1361-6501/ac5fff},
author = {Metzner, S and W{\"u}bbeler, G and Kolbitsch, C and Elster, C}
}
@Article { EigelGM2022,
title = {Low-rank tensor reconstruction of concentrated densities with application to Bayesian inversion},
journal = {Statistics and Computing},
year = {2022},
month = {3},
day = {12},
volume = {32},
number = {2},
pages = {27},
tags = {8.4,8.42},
DOI = {10.1007/s11222-022-10087-1},
author = {Eigel, M and Gruhlke, R and Marschall, M}
}
@Article { WubbelerMKHHE2022,
title = {GUM-Compliant Uncertainty Evaluation Using Virtual Experiments},
journal = {Metrology},
year = {2022},
month = {3},
day = {1},
volume = {2},
number = {1},
pages = {114--127},
tags = {8.42,8.4,Form},
DOI = {10.3390/metrology2010008},
author = {W{\"u}bbeler, G and Marschall, M and Kniel, K and Hei{\ss}elmann, D and H{\"a}rtig, F and Elster, C}
}
@Article { PolanskyS2022,
title = {Implementation of turbulence damping in the OpenFOAM multiphase flow solver interFoam},
journal = {Archives of Thermodynamics},
year = {2022},
month = {3},
day = {1},
volume = {43},
number = {1},
pages = {21-43},
keywords = {Multiphase flow, Stratified flow, Turbulence damping, Computational fluid dynamics, OpenFOAM, Reynolds-averaged Navier–Stokes, Detached eddy simulation, Delayed detached eddy simulation},
tags = {8.4,8.41,Flow},
url = {http://journals.pan.pl/Content/122890/PDF/art02_internet.pdf},
DOI = {10.24425/ather.2022.140923},
author = {Polansky, Jiri and Schmelter, Sonja}
}
@Article { MarschallSSE2022,
title = {Uncertainty propagation in quantitative magnetic force microscopy using a Monte-Carlo method},
journal = {IEEE Transactions on Magnetics},
year = {2022},
month = {2},
day = {21},
pages = {1--1},
tags = {8.4,8.42,Messunsicherheit},
DOI = {10.1109/TMAG.2022.3153176},
author = {Marschall, M and Sievers, S and Schumacher, H W and Elster, C}
}
@Article { ScholzFMSSE2022,
title = {Experimental Design for
Virtual Experiments in Tilted-Wave
Interferometry},
journal = {Metrology},
year = {2022},
month = {2},
day = {17},
volume = {2},
pages = {84--97},
tags = {8.4,8.42,Form},
DOI = {doi.org/10.3390/metrology2010006},
author = {Scholz, G and Fortmeier, I and Marschall, M and Stavridis, M and Schulz, M and Elster, C}
}
@Article { MarschallWE2022,
title = {Rejection sampling for Bayesian uncertainty evaluation using the Monte Carlo techniques of GUM-S1},
journal = {Metrologia},
year = {2022},
month = {2},
day = {1},
volume = {59},
number = {1},
pages = {015004},
tags = {8.4,8.42,Messunsicherheit},
DOI = {10.1088/1681-7575/ac3920},
author = {Marschall, M and W{\"u}bbeler, G and Elster, C}
}
@Article { GruberDSEE2022,
title = {Discrete wavelet transform on uncertain data: Efficient online implementation for practical applications.},
journal = {Advanced Mathematical and Computational Tools in Metrology and Testing XII, Series on Advances in Mathematics for Applied Sciences},
year = {2022},
month = {1},
day = {30},
volume = {90},
tags = {8.4,8.42,Messunsicherheit},
ISSN = {978-981-1242-37-3},
author = {Gruber, M and Dorst, T and Sch{\"u}tze, A and Eichst{\"a}dt, S and Elster, C}
}
@Article { ReinkenHBK2022,
title = {Ising-like critical behavior of vortex lattices in an active fluid},
journal = {Physical Review Letters},
year = {2022},
month = {1},
day = {27},
volume = {128},
number = {4},
pages = {048004},
tags = {8.4,8.43,ActFluid},
DOI = {10.1103/PhysRevLett.128.048004},
author = {Reinken, H and Heidenreich, S and B{\"a}r, M and Klapp, S.H.L}
}
@Article { FortmeierS2022,
title = {Development of a metrological reference system for the form measurement of aspheres and freeform surfaces based on a tilted-wave interferometer},
journal = {Measurement Science and Technology},
year = {2022},
month = {1},
day = {24},
volume = {33},
number = {4},
tags = {8.4,8.42,Form},
state = {accepted},
DOI = {10.1088/1361-6501/ac47bd},
author = {Fortmeier, I and Stavridis, M and Schulz, M and Elster, C}
}
@Article { cai_empirical_2022,
title = {Empirical {Bayesian} localization of event-related time-frequency neural activity dynamics},
journal = {NeuroImage},
year = {2022},
volume = {258},
pages = {119369},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S1053811922004888},
web_url_date = {2022-09-13},
language = {en},
ISSN = {10538119},
DOI = {10.1016/j.neuroimage.2022.119369},
author = {Cai, Chang and Hinkley, Leighton and Gao, Yijing and Hashemi, Ali and Haufe, Stefan and Sekihara, Kensuke and Nagarajan, Srikantan S.}
}
@Article { langer_benchmark_2022,
title = {A benchmark for prediction of psychiatric multimorbidity from resting {EEG} data in a large pediatric sample},
journal = {NeuroImage},
year = {2022},
volume = {258},
pages = {119348},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S1053811922004670},
web_url_date = {2022-09-13},
language = {en},
ISSN = {10538119},
DOI = {10.1016/j.neuroimage.2022.119348},
author = {Langer, Nicolas and Plomecka, Martyna Beata and Tr{\"o}ndle, Marius and Negi, Anuja and Popov, Tzvetan and Milham, Michael and Haufe, Stefan}
}
@Article { wilming_scrutinizing_2022,
title = {Scrutinizing {XAI} using linear ground-truth data with suppressor variables},
journal = {Machine Learning},
year = {2022},
volume = {111},
number = {5},
pages = {1903--1923},
abstract = {Abstract Machine learning (ML) is increasingly often used to inform high-stakes decisions. As complex ML models (e.g., deep neural networks) are often considered black boxes, a wealth of procedures has been developed to shed light on their inner workings and the ways in which their predictions come about, defining the field of ‘explainable AI’ (XAI). Saliency methods rank input features according to some measure of ‘importance’. Such methods are difficult to validate since a formal definition of feature importance is, thus far, lacking. It has been demonstrated that some saliency methods can highlight features that have no statistical association with the prediction target (suppressor variables). To avoid misinterpretations due to such behavior, we propose the actual presence of such an association as a necessary condition and objective preliminary definition for feature importance. We carefully crafted a ground-truth dataset in which all statistical dependencies are well-defined and linear, serving as a benchmark to study the problem of suppressor variables. We evaluate common explanation methods including LRP, DTD, PatternNet, PatternAttribution, LIME, Anchors, SHAP, and permutation-based methods with respect to our objective definition. We show that most of these methods are unable to distinguish important features from suppressors in this setting.},
tags = {8.4, 8.44},
web_url = {https://link.springer.com/10.1007/s10994-022-06167-y},
web_url_date = {2022-09-13},
language = {en},
ISSN = {0885-6125, 1573-0565},
DOI = {10.1007/s10994-022-06167-y},
author = {Wilming, Rick and Budding, C{\'e}line and M{\"u}ller, Klaus-Robert and Haufe, Stefan}
}
@Article { kumral_relationship_2022,
title = {Relationship between regional white matter hyperintensities and alpha oscillations in older adults},
journal = {Neurobiology of Aging},
year = {2022},
volume = {112},
pages = {1--11},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S0197458021003195},
web_url_date = {2022-09-13},
language = {en},
ISSN = {01974580},
DOI = {10.1016/j.neurobiolaging.2021.10.006},
author = {Kumral, Deniz and Cesnaite, Elena and Beyer, Frauke and Hofmann, Simon M. and Hensch, Tilman and Sander, Christian and Hegerl, Ulrich and Haufe, Stefan and Villringer, Arno and Witte, A. Veronica and Nikulin, Vadim V.}
}
@Article { merk_machine_2022,
title = {Machine learning based brain signal decoding for intelligent adaptive deep brain stimulation},
journal = {Experimental Neurology},
year = {2022},
volume = {351},
pages = {113993},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S0014488622000188},
web_url_date = {2022-09-13},
language = {en},
ISSN = {00144886},
DOI = {10.1016/j.expneurol.2022.113993},
author = {Merk, Timon and Peterson, Victoria and K{\"o}hler, Richard and Haufe, Stefan and Richardson, R. Mark and Neumann, Wolf-Julian}
}
@Article { hashemi_joint_2022,
title = {Joint {Learning} of {Full}-structure {Noise} in {Hierarchical} {Bayesian} {Regression} {Models}},
journal = {IEEE Transactions on Medical Imaging},
year = {2022},
pages = {1--1},
tags = {8.4, 8.44},
web_url = {https://ieeexplore.ieee.org/document/9963991/},
web_url_date = {2023-08-22},
ISSN = {0278-0062, 1558-254X},
DOI = {10.1109/TMI.2022.3224085},
author = {Hashemi, Ali and Cai, Chang and Gao, Yijing and Ghosh, Sanjay and M{\"u}ller, Klaus-Robert and Nagarajan, Srikantan S. and Haufe, Stefan}
}
@Article { pellegrini_p_2022,
title = {P 80 {How} to avoid measurement of spurious inter-regional functional connectivity from {EEG} – a simulation study},
journal = {Clinical Neurophysiology},
year = {2022},
volume = {137},
pages = {e60--e61},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S1388245722001298},
web_url_date = {2023-08-22},
language = {en},
ISSN = {13882457},
DOI = {10.1016/j.clinph.2022.01.111},
author = {Pellegrini, F. and Nikulin, V. and Haufe, S.}
}
@Article { noauthor_erratum:_2022,
title = {Erratum: {Stephani} et al., “{Temporal} {Signatures} of {Criticality} in {Human} {Cortical} {Excitability} as {Probed} by {Early} {Somatosensory} {Responses}”},
journal = {The Journal of Neuroscience},
year = {2022},
volume = {42},
number = {22},
pages = {4605--4605},
tags = {8.4, 8.44},
web_url = {https://www.jneurosci.org/lookup/doi/10.1523/JNEUROSCI.0820-22.2022},
web_url_date = {2023-08-22},
language = {en},
ISSN = {0270-6474, 1529-2401},
DOI = {10.1523/JNEUROSCI.0820-22.2022}
}
@Article { palmisano_gait_2022,
title = {Gait {Initiation} {Impairment} in {Patients} with {Parkinson}’s {Disease} and {Freezing} of {Gait}},
journal = {Bioengineering},
year = {2022},
volume = {9},
number = {11},
pages = {639},
abstract = {Freezing of gait (FOG) is a sudden episodic inability to produce effective stepping despite the intention to walk. It typically occurs during gait initiation (GI) or modulation and may lead to falls. We studied the anticipatory postural adjustments (imbalance, unloading, and stepping phase) at GI in 23 patients with Parkinson’s disease (PD) and FOG (PDF), 20 patients with PD and no previous history of FOG (PDNF), and 23 healthy controls (HCs). Patients performed the task when off dopaminergic medications. The center of pressure (CoP) displacement and velocity during imbalance showed significant impairment in both PDNF and PDF, more prominent in the latter patients. Several measurements were specifically impaired in PDF patients, especially the CoP displacement along the anteroposterior axis during unloading. The pattern of segmental center of mass (SCoM) movements did not show differences between groups. The standing postural profile preceding GI did not correlate with outcome measurements. We have shown impaired motor programming at GI in Parkinsonian patients. The more prominent deterioration of unloading in PDF patients might suggest impaired processing and integration of somatosensory information subserving GI. The unaltered temporal movement sequencing of SCoM might indicate some compensatory cerebellar mechanisms triggering time-locked models of body mechanics in PD.},
tags = {8.4, 8.44},
web_url = {https://www.mdpi.com/2306-5354/9/11/639},
web_url_date = {2023-08-22},
language = {en},
ISSN = {2306-5354},
DOI = {10.3390/bioengineering9110639},
author = {Palmisano, Chiara and Beccaria, Laura and Haufe, Stefan and Volkmann, Jens and Pezzoli, Gianni and Isaias, Ioannis U.}
}
@Article { WubbelerMRKE2021,
title = {Compressive nano-FTIR chemical mapping},
journal = {Measurement Science and Technology},
year = {2021},
month = {12},
day = {24},
volume = {33},
pages = {035402},
tags = {8.4,8.42,LargeScaleDataAna,Regression},
state = {accepted},
DOI = {10.1088/1361-6501/ac407a},
author = {W{\"u}bbeler, G and Marschall, M and R{\"u}hl, E and K{\"a}stner, B and Elster, C}
}
@Article { MehariS2021,
title = {Self-supervised representation learning from 12-lead ECG data},
journal = {Computers in Biology and Medicine},
year = {2021},
month = {12},
day = {18},
volume = {141},
pages = {105114},
tags = {8.4,8.41,ML},
DOI = {https://doi.org/10.1016/j.compbiomed.2021.105114},
author = {Mehari, T and Strodthoff, N}
}
@Phdthesis { Metzner2021,
title = {Bayesian data analysis for magnetic resonance fingerprinting},
year = {2021},
month = {12},
day = {7},
keywords = {publiziert},
tags = {8.4,8.42,Messunsicherheit,Regression,Fingerprinting,LargeScaleDataAna},
school = {TU Berlin},
type = {PhD Thesis},
DOI = {10.14279/depositonce-12455},
author = {Metzner, S}
}
@Article { WilczekHB2021,
title = {Die Physik aktiver Fluide},
journal = {Physik Journal},
year = {2021},
month = {12},
day = {1},
volume = {20},
number = {12},
pages = {35},
tags = {8.4,8.43},
author = {Wilczek, M and Heidenreich, S and B{\"a}r, M}
}
@Article { HoffmannFE2021_2,
title = {Deep learning for tilted-wave interferometry},
journal = {tm - Technisches Messen},
year = {2021},
month = {11},
day = {20},
keywords = {publiziert},
tags = {8.4,8.42,Form,ML},
DOI = {10.1515/teme-2021-0103},
author = {Hoffmann, L and Fortmeier, I and Elster, C}
}
@Article { WorlitzerABSBH2021,
title = {Turbulence-induced clustering in compressible active fluids},
journal = {Soft Matter},
year = {2021},
month = {11},
day = {11},
volume = {2021},
number = {17},
pages = {10447-10457},
tags = {8.4,8.43,ActFluid},
DOI = {https://doi.org/10.1039/D1SM01276B},
author = {Worlitzer, V M and Ariel, G and Be'er, A and Stark, H and B{\"a}r, M and Heidenreich, S}
}
@Article { KlauenbergMBCvE2021,
title = {The GUM perspective on straight-line errors-in-variables regression},
journal = {Measurement},
year = {2021},
month = {11},
day = {6},
volume = {187},
pages = {110340},
tags = {8.4,8.42,Regression},
ISSN = {0263-2241},
DOI = {10.1016/j.measurement.2021.110340},
author = {Klauenberg, K and Martens, S and Bošnjaković, A and Cox, M.G and van der Veen, A. M.H and Elster, C}
}
@Article { AntonREMSSE2021,
title = {The regression detectability index RDI for mammography images of breast phantoms with calcification-like objects and anatomical background},
journal = {Physics in Medicine \& Biology},
year = {2021},
month = {10},
day = {27},
tags = {8.4,8.42},
DOI = {10.1088/1361-6560/ac33ea},
author = {Anton, M and Reginatto, M and Elster, C and M{\"a}der, U and Schopphoven, S and Sechopoulos, I and E van Engen, R}
}
@Article { KhmelinskaiaFYPS2021,
title = {Membrane-Mediated Self-Organization of Rod-Like DNA Origami on Supported Lipid Bilayers},
journal = {Advanced Materials Interfaces},
year = {2021},
month = {10},
day = {18},
volume = {8},
number = {24},
pages = {2101094},
tags = {8.4, 8.41},
DOI = {https://doi.org/10.1002/admi.202101094},
author = {Khmelinskaia, A and Franquelim, H G and Yaadav, R and Petrov, E P and Schwille, P}
}
@Article { FischedickSBE2020,
title = {Investigation of the uncertainty contributions of the alignment of PTB's double-ended interferometer by virtual experiments},
journal = {Metrologia},
year = {2021},
month = {10},
day = {12},
volume = {58},
number = {6},
pages = {064001},
tags = {8.4,8.42,Form},
DOI = {10.1088/1681-7575/ac2724},
author = {Fischedick, Markus and Stavridis, Manuel and Bartl, Guido and Elster, Clemens}
}
@Article { KnotekSO2021,
title = {Assessment of different parameters used in mesh independence studies in two-phase slug flow simulations},
journal = {Measurement: Sensors},
year = {2021},
month = {9},
day = {28},
volume = {18},
pages = {100317},
tags = {8.4,8.41,Flow},
ISSN = {2665-9174},
DOI = {10.1016/j.measen.2021.100317},
author = {Knotek, Stanislav and Schmelter, Sonja and Olbrich, Marc}
}
@Article { SchmelterOKB2021,
title = {Analysis of multiphase flow simulations and comparison with high-speed video observations},
journal = {Measurement: Sensors},
year = {2021},
month = {9},
day = {23},
volume = {18},
pages = {100154},
tags = {8.4,8.41,Flow},
ISSN = {2665-9174},
DOI = {10.1016/j.measen.2021.100154},
author = {Schmelter, Sonja and Olbrich, Marc and Knotek, Stanislav and B{\"a}r, Markus}
}
@Article { OlbrichHLSBOS2021,
title = {Comparing temporal characteristics of slug flow from tomography measurements and video observations},
journal = {Measurement: Sensors},
year = {2021},
month = {9},
day = {22},
volume = {18},
pages = {100222},
tags = {8.4,8.41,Flow},
ISSN = {2665-9174},
DOI = {10.1016/j.measen.2021.100222},
author = {Olbrich, Marc and Hunt, Andrew and Leonard, Terri and S. van Putten, Dennis and B{\"a}r, Markus and Oberleithner, Kilian and Schmelter, Sonja}
}
@Article { HoffmannFE2021,
title = {Uncertainty Quantification by Ensemble Learning for Computational Optical Form Measurements},
journal = {Machine Learning: Science and Technology},
year = {2021},
month = {5},
day = {24},
keywords = {publiziert},
tags = {8.4,8.42,ML,Form},
DOI = {10.1088/2632-2153/ac0495},
author = {Hoffmann, L and Fortmeier, I and Elster, C}
}
@Article { MartinE2021,
title = {GUI for Bayesian sample size planning in type A uncertainty evaluation},
journal = {Measurement Science and Technology},
year = {2021},
month = {4},
day = {30},
volume = {32},
number = {7},
pages = {5005},
tags = {8.4,8.42,Messunsicherheit},
DOI = {10.1088/1361-6501/abe2bd},
author = {Martin, J and Elster, C}
}
@Article { AndrleFHHSS2021,
title = {Invertible Neural Networks Versus MCMC for Posterior Reconstruction in Grazing Incidence X-Ray Fluorescence},
journal = {Scale Space and Variational Methods in Computer Vision},
year = {2021},
month = {4},
day = {30},
pages = {528--539},
tags = {8.4, 8.43, UQ},
DOI = {10.1007/978-3-030-75549-2_42},
author = {Andrle, A and Farchmin, N and Hagemann, P and Heidenreich, S and Soltwisch, V and Steidl, G}
}
@Article { LeydenUMYPGPBA2021,
title = {Rac1 activation can generate untemplated, lamellar membrane ruffles},
journal = {BMC Biology},
year = {2021},
month = {4},
day = {13},
volume = {19},
number = {72},
tags = {8.4,8.41},
DOI = {https://doi.org/10.1186/s12915-021-00997-3},
author = {Leyden, F. and Uthishtran, S. and Moorthi, U. K. and York, H. M. and Patil, A. and Gandhi, H. and Petrov, Eugene. P. and Bornschl{\"o}gl, T. and Arumugam, S.}
}
@Article { PeledRHBAB2021,
title = {Heterogeneous bacterial swarms with mixed lengths},
journal = {Physical Review E},
year = {2021},
month = {3},
day = {29},
volume = {103},
number = {3},
pages = {032413},
tags = {8.4,8.43,ActFluid},
DOI = {10.1103/PhysRevE.103.032413},
author = {Peled, S and Ryan, S D and Heidenreich, S and B{\"a}r, M and Ariel, G and Be'er, A}
}
@Article { KlauenbergME2021,
title = {Hypothesis-based acceptance sampling for modules F and F1 of the European Measuring Instruments Directive},
journal = {Statistics and Public Policy},
year = {2021},
month = {3},
day = {10},
tags = {8.4,8.42,Stichprobenverf},
DOI = {10.1080/2330443X.2021.1900762},
author = {Klauenberg, K and M{\"u}ller, C A and Elster, C}
}
@Article { WorlitzerABSB2021,
title = {Motility-induced clustering and meso-scale turbulence in active polar fluids},
journal = {New Journal of Physics},
year = {2021},
month = {3},
day = {10},
volume = {23},
pages = {033012},
tags = {8.4,ActFluid},
DOI = {10.1088/1367-2630/abe72d},
author = {Worlitzer, V M and Ariel, G and Be'er, A and Stark, H and B{\"a}r, M and Heidenreich, S}
}
@Article { MetznerWFGKE2021,
title = {Bayesian uncertainty quantification for magnetic resonance fingerprinting},
journal = {Physics in Medicine \& Biology},
year = {2021},
month = {3},
day = {1},
volume = {66},
number = {7},
pages = {075006},
tags = {8.4,8.42,Messunsicherheit,Regression,Fingerprinting,LargeScaleDataAna},
DOI = {10.1088/1361-6560/abeae7},
author = {Metzner, S and W{\"u}bbeler, G and Flassbeck, S and Gatefait, C and Kolbitsch, C and Elster, C}
}
@Article { AndrleHVQSHSS2021,
title = {The anisotropy in the optical constants of quartz crystals for soft X-rays},
journal = {Journal of Applied Crystallography},
year = {2021},
month = {2},
day = {19},
volume = {54},
number = {2},
pages = {402--408},
tags = {8.4, 8.43, UQ},
DOI = {10.1107/S1600576720016325},
author = {Andrle, A and H{\"o}nicke, P and Vinson, J and Quintanilha, R and Saadeh, Q and Heidenreich, S and Scholze, F and Soltwisch, V}
}
@Article { SmudaGHN2021,
title = {Function of Hemoglobin-Based Oxygen Carriers: Determination of Methemoglobin Content by Spectral Extinction Measurements},
journal = {Int J Mol Sci .},
year = {2021},
month = {2},
day = {10},
volume = {22},
number = {4},
pages = {1753},
tags = {8.4,8.41,Cyto},
DOI = {10.3390/ijms22041753},
author = {Smuda, K and Gienger, J and H{\"o}nicke, P and Neukammer, J}
}
@Article { SchmelterKOFB2021,
title = {On the influence of inlet perturbations on slug dynamics inhorizontal multiphase flow a computational study},
journal = {Metrologia},
year = {2021},
month = {1},
day = {21},
volume = {58},
number = {1},
pages = {014003},
tags = {8.4,8.41,Flow},
DOI = {10.1088/1681-7575/abd1c9},
author = {Schmelter, S and Knotek, S and Olbrich, M and Fiebach, A and B{\"a}r, M}
}
@Article { WubbelerE2020_2,
title = {Efficient experimental sampling through low-rank matrix recovery},
journal = {Metrologia},
year = {2021},
month = {1},
day = {7},
volume = {58},
number = {1},
pages = {014002},
note = {online},
tags = {8.4,8.42,Regression,LargeScaleDataAna},
state = {accepted},
DOI = {10.1088/1681-7575/abc97b},
author = {W{\"u}bbeler, G and Elster, C}
}
@Article { SchmidtFSSLS2021,
title = {The impact of 4D flow displacementartifacts on wall shear stress estimation},
journal = {Magnetic Resonance in Medicine},
year = {2021},
volume = {85},
number = {6},
pages = {3154-3168},
tags = {8.4,8.41,Flow},
DOI = {10.1002/mrm.28641},
author = {Schmidt, S and Flassbeck, S and Schmelter, S and Schmeyer, E and Ladd, M E and Schmitter, S}
}
@Article { oala_machine_2021,
title = {Machine {Learning} for {Health}: {Algorithm} {Auditing} \& {Quality} {Control}},
journal = {Journal of Medical Systems},
year = {2021},
volume = {45},
number = {12},
pages = {105},
abstract = {Abstract Developers proposing new machine learning for health (ML4H) tools often pledge to match or even surpass the performance of existing tools, yet the reality is usually more complicated. Reliable deployment of ML4H to the real world is challenging as examples from diabetic retinopathy or Covid-19 screening show. We envision an integrated framework of algorithm auditing and quality control that provides a path towards the effective and reliable application of ML systems in healthcare. In this editorial, we give a summary of ongoing work towards that vision and announce a call for participation to the special issue Machine Learning for Health: Algorithm Auditing \& Quality Control in this journal to advance the practice of ML4H auditing.},
tags = {8.4, 8.44},
web_url = {https://link.springer.com/10.1007/s10916-021-01783-y},
web_url_date = {2022-09-13},
language = {en},
ISSN = {0148-5598, 1573-689X},
DOI = {10.1007/s10916-021-01783-y},
author = {Oala, Luis and Murchison, Andrew G. and Balachandran, Pradeep and Choudhary, Shruti and Fehr, Jana and Leite, Alixandro Werneck and Goldschmidt, Peter G. and Johner, Christian and Sch{\"o}rverth, Elora D. M. and Nakasi, Rose and Meyer, Martin and Cabitza, Federico and Baird, Pat and Prabhu, Carolin and Weicken, Eva and Liu, Xiaoxuan and Wenzel, Markus and Vogler, Steffen and Akogo, Darlington and Alsalamah, Shada and Kazim, Emre and Koshiyama, Adriano and Piechottka, Sven and Macpherson, Sheena and Shadforth, Ian and Geierhofer, Regina and Matek, Christian and Krois, Joachim and Sanguinetti, Bruno and Arentz, Matthew and Bielik, Pavol and Calderon-Ramirez, Saul and Abbood, Auss and Langer, Nicolas and Haufe, Stefan and Kherif, Ferath and Pujari, Sameer and Samek, Wojciech and Wiegand, Thomas}
}
@Article { hashemi_unification_2021,
title = {Unification of sparse {Bayesian} learning algorithms for electromagnetic brain imaging with the majorization minimization framework},
journal = {NeuroImage},
year = {2021},
volume = {239},
pages = {118309},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S1053811921005851},
web_url_date = {2022-09-13},
language = {en},
ISSN = {10538119},
DOI = {10.1016/j.neuroimage.2021.118309},
author = {Hashemi, Ali and Cai, Chang and Kutyniok, Gitta and M{\"u}ller, Klaus-Robert and Nagarajan, Srikantan S. and Haufe, Stefan}
}
@Article { cai_robust_2021,
title = {Robust estimation of noise for electromagnetic brain imaging with the champagne algorithm},
journal = {NeuroImage},
year = {2021},
volume = {225},
pages = {117411},
tags = {8.4, 8.44},
web_url = {https://linkinghub.elsevier.com/retrieve/pii/S105381192030896X},
web_url_date = {2022-09-13},
language = {en},
ISSN = {10538119},
DOI = {10.1016/j.neuroimage.2020.117411},
author = {Cai, Chang and Hashemi, Ali and Diwakar, Mithun and Haufe, Stefan and Sekihara, Kensuke and Nagarajan, Srikantan S.}
}
@Article { lichtner_predicting_2021,
title = {Predicting lethal courses in critically ill {COVID}-19 patients using a machine learning model trained on patients with non-{COVID}-19 viral pneumonia},
journal = {Scientific Reports},
year = {2021},
volume = {11},
number = {1},
pages = {13205},
abstract = {Abstract In a pandemic with a novel disease, disease-specific prognosis models are available only with a delay. To bridge the critical early phase, models built for similar diseases might be applied. To test the accuracy of such a knowledge transfer, we investigated how precise lethal courses in critically ill COVID-19 patients can be predicted by a model trained on critically ill non-COVID-19 viral pneumonia patients. We trained gradient boosted decision tree models on 718 (245 deceased) non-COVID-19 viral pneumonia patients to predict individual ICU mortality and applied it to 1054 (369 deceased) COVID-19 patients. Our model showed a significantly better predictive performance (AUROC 0.86 [95\% CI 0.86–0.87]) than the clinical scores APACHE2 (0.63 [95\% CI 0.61–0.65]), SAPS2 (0.72 [95\% CI 0.71–0.74]) and SOFA (0.76 [95\% CI 0.75–0.77]), the COVID-19-specific mortality prediction models of Zhou (0.76 [95\% CI 0.73–0.78]) and Wang (laboratory: 0.62 [95\% CI 0.59–0.65]; clinical: 0.56 [95\% CI 0.55–0.58]) and the 4C COVID-19 Mortality score (0.71 [95\% CI 0.70–0.72]). We conclude that lethal courses in critically ill COVID-19 patients can be predicted by a machine learning model trained on non-COVID-19 patients. Our results suggest that in a pandemic with a novel disease, prognosis models built for similar diseases can be applied, even when the diseases differ in time courses and in rates of critical and lethal courses.},
tags = {8.4, 8.44},
web_url = {http://www.nature.com/articles/s41598-021-92475-7},
web_url_date = {2022-09-13},
language = {en},
ISSN = {2045-2322},
DOI = {10.1038/s41598-021-92475-7},
author = {Lichtner, Gregor and Balzer, Felix and Haufe, Stefan and Giesa, Niklas and Schiefenh{\"o}vel, Fridtjof and Schmieding, Malte and Jurth, Carlo and Kopp, Wolfgang and Akalin, Altuna and Schaller, Stefan J. and Weber-Carstens, Steffen and Spies, Claudia and von Dincklage, Falk}
}
@Article { EigelFHT2021,
title = {Efficient approximation of high-dimensional exponentials by
tensornetworks},
journal = {International Journal of Uncertainty Quantification},
year = {2021},
pages = {25-51},
tags = {8.4,8.43,UQ},
DOI = {10.1615/Int.J.UncertaintyQuantification.2022039164},
author = {Eigel, M. and Farchmin, N. and Heidenreich, S. and Trunschke, P.}
}
@Article { MarschallHWHRKE2020,
title = {Compressed FTIR spectroscopy using low-rank matrix reconstruction},
journal = {Opt. Express},
year = {2020},
month = {12},
day = {10},
volume = {26},
number = {28},
pages = {38762--38772},
tags = {8.4,8.42,Regression,LargeScaleDataAna},
DOI = {10.1364/OE.404959},
author = {Marschall, M and Hornemann, A and W{\"u}bbeler, G and Hoehl, A and R{\"u}hl, E and K{\"a}stner, B and Elster, C}
}
@Article { MartinE2020_3,
title = {Detecting unusual input to neural networks},
journal = {Appl Intell},
year = {2020},
month = {10},
day = {30},
keywords = {publiziert},
tags = {8.4,8.42,ML},
DOI = {10.1007/s10489-020-01925-8},
author = {Martin, J and Elster, C}
}
@Article { WubbelerME2020,
title = {A simple method for Bayesian uncertainty evaluation in linear models},
journal = {Metrologia},
year = {2020},
month = {10},
day = {21},
volume = {57},
number = {6},
pages = {065010},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.1088/1681-7575/aba3b8},
author = {W{\"u}bbeler, G and Marschall, M and Elster, C}
}
@Article { OlbrichSBSOS2020,
title = {Identification of coherent structures in horizontal slug flow},
journal = {Flow Measurement and Instrumentation},
year = {2020},
month = {10},
day = {16},
volume = {76},
pages = {101814},
tags = {8.4,8.41,Flow},
DOI = {10.1016/j.flowmeasinst.2020.101814},
author = {Olbrich, M and Schmeyer, E and B{\"a}r, M and Sieber, M and Oberleithner, K and Schmelter, S}
}
@Phdthesis { Kretz2020,
title = {Development of model observers for quantitative assessment of mammography image quality},
year = {2020},
month = {10},
day = {7},
keywords = {publiziert},
tags = {8.4,8.42,ML},
url = {http://dx.doi.org/10.14279/depositonce-10552},
school = {TU Berlin},
type = {PhD Thesis},
author = {Kretz, T}
}
@Article { HoffmannE2020,
title = {Deep Neural Networks for Computational Optical Form Measurements},
journal = {Journal of Sensors and Sensor Systems},
year = {2020},
month = {9},
day = {24},
volume = {9},
pages = {301--307},
keywords = {publiziert},
tags = {8.4,8.42,ML,Form},
DOI = {10.5194/jsss-9-301-2020},
author = {Hoffmann, L and Elster, C}
}
@Article { OlbrichBOS2020,
title = {Statistical characterization of horizontal slug flow using snapshot proper orthogonal decomposition},
journal = {International Journal of Multiphase Flow},
year = {2020},
month = {9},
day = {6},
volume = {134},
pages = {103453},
tags = {8.4,8.41,Flow},
DOI = {10.1016/j.ijmultiphaseflow.2020.103453},
author = {Olbrich, M and B{\"a}r, M and Oberleithner, K and Schmelter, S}
}
@Article { MartinE2020_2,
title = {The variation of the posterior variance and Bayesian sample size determination},
journal = {Statistical Methods \& Applications},
year = {2020},
month = {8},
day = {25},
pages = {1613-981X},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.1007/s10260-020-00545-3},
author = {Martin, J and Elster, C}
}
@Article { DemeyerFE2020,
title = {Guidance on Bayesian uncertainty evaluation for a class of GUM measurement models},
journal = {Metrologia},
year = {2020},
month = {8},
day = {18},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.1088/1681-7575/abb065},
author = {Demeyer, S and Fischer, N and Elster, C}
}
@Article { ElsterK2020,
title = {A quantile inequality for location-scale distributions},
journal = {Statistics \& Probability Letters},
year = {2020},
month = {6},
day = {20},
volume = {165},
pages = {108851},
tags = {8.4,8.42,Stichprobenverf},
DOI = {/10.1016/j.spl.2020.108851},
author = {Elster, C and Klauenberg, K}
}
@Article { ReinkenNHSBKA2020,
title = {Organizing bacterial vortex lattices by periodic obstacle arrays},
journal = {Commun Phys},
year = {2020},
month = {5},
day = {7},
volume = {3},
number = {76},
tags = {8.4,8.43,ActFluid},
DOI = {10.1038/s42005-020-0337-z},
author = {Reinken, H and Nishiguchi, D and Heidenreich, S and Sokolov, A and B{\"a}r, M and Klapp, S H L and Aranson, I S}
}
@Article { FarchminHSWBBH2020,
title = {Efficient Bayesian inversion for shape reconstruction of lithography masks},
journal = {Journal of Micro/Nanolithography, MEMS, and MOEMS},
year = {2020},
month = {5},
day = {5},
volume = {2},
number = {19},
pages = {1--11},
tags = {8.4,8.43,UQ,Scatter-Inv},
DOI = {10.1117/1.JMM.19.2.024001},
author = {Farchmin, N and Hammerschmidt, M and Schneider, P I and Wurm, M and Bodermann, B and B{\"a}r, M and Heidenreich, S}
}
@Article { AntonVHE2020,
title = {RDI - a regression detectability index for quality assurance in: x-ray imaging},
journal = {Physics in Medicine \& Biology},
year = {2020},
month = {4},
day = {23},
volume = {65},
number = {8},
pages = {085017},
tags = {8.4,8.42},
DOI = {10.1088/1361-6560/ab7b2e},
author = {Anton, M and Veldkamp, W J H and Hernandez-Giron, I and Elster, C}
}
@Article { KretzMSE2020,
title = {Mammography Image Quality Assurance Using Deep Learning},
journal = {IEEE Transactions on Biomedical Engineering},
year = {2020},
month = {4},
day = {14},
keywords = {publiziert},
tags = {8.4,8.42,ML},
DOI = {10.1109/TBME.2020.2983539},
author = {Kretz, T and M{\"u}ller, K-R and Sch{\"a}ffter, T and Elster, C}
}
@Article { BartlEMSVW2020,
title = {Thermal expansion and compressibility of single-crystal silicon between 285 K and 320 K},
journal = {Measurement Science and Technology},
year = {2020},
month = {4},
day = {3},
volume = {31},
number = {6},
tags = {8.4,8.42,Unsicherheit,Regression},
DOI = {10.1088/1361-6501/ab7359},
author = {Bartl, G and Elster, C and Martin, J and Sch{\"o}del, R and Voigt, M and Walkov, A}
}
@Article { BeaerIGKHBA2020,
title = {A phase diagram for bacterial swarming},
journal = {Commun Phys},
year = {2020},
month = {4},
day = {3},
volume = {3},
number = {66},
tags = {8.4,ActFluid},
DOI = {10.1038/s42005-020-0327-1},
author = {Be´er, A and Ilkanaiv, B and Gross, R and Kearns, D B and Heidenreich, S and B{\"a}r, M and Ariel, G}
}
@Article { MartinE2020,
title = {Inspecting adversarial examples using the fisher information},
journal = {Neurocomputing},
year = {2020},
month = {3},
day = {21},
volume = {382},
pages = {80--86},
keywords = {publiziert},
tags = {8.4,8.42,ML},
DOI = {10.1016/j.neucom.2019.11.052},
author = {Martin, J and Elster, C}
}
@Conference { CasforZapataFPNSHLKS2020,
title = {Sensitivity analysis for the detection of pitchwalk in self-
aligned quadruple patterning by GISAXS},
year = {2020},
month = {3},
day = {20},
volume = {11325},
tags = {8.4,8.43,UQ},
publisher = {SPIE},
booktitle = {Proc. of SPIE},
event_place = {San Jose, USA},
event_name = {Metrology, Inspection, and Process Control for Microlithography XXXIV},
event_date = {20.03.2020},
DOI = {10.1117/12.2552037},
author = {Casfor Zapata, M. and Farchmin, N. and Pfl{\"u}ger, M. and Nikolaev, K. and Soltwisch, V. and Heidenreich, S. and Laube, C. and Kolbe, M. and Scholze, F.}
}
@Article { SchmelterOSB2020,
title = {Numerical simulation, validation, and analysis of two-phase slug flow in large horizontal pipes},
journal = {Flow Measurement and Instrumentation},
year = {2020},
month = {3},
day = {10},
volume = {73},
pages = {101722},
tags = {8.4,8.41,Flow},
DOI = {10.1016/j.flowmeasinst.2020.101722},
author = {Schmelter, S and Olbrich, M and Schmeyer, E and B{\"a}r, M}
}
@Article { SchenkerSST2020,
title = {Effects of misalignments on the modulation transfer function measurement of camera lenses analyzed in optomechanical simulations},
journal = {Opt. Eng.},
year = {2020},
month = {3},
day = {3},
volume = {59},
number = {3},
pages = {034101},
tags = {8.4,8.42,Form},
DOI = {10.1117/1.OE.59.3.034101},
author = {Schenker, M and Stavridis, M and Schulz, M and Tutsch, R}
}
@Article { BarGHP2020,
title = {Self-Propelled Rods: Insights and Perspectives for Active Matter},
journal = {Annual Review of Condensed Matter Physics},
year = {2020},
month = {3},
day = {1},
volume = {11},
pages = {441--466},
tags = {8.4,,ActFluid},
DOI = {10.1146/annurev-conmatphys-031119-050611},
author = {B{\"a}r, M and Gro{\ss}mann, R and Heidenreich, S and Peruani, F}
}
@Article { WubbelerE2020,
title = {On the transferability of the GUM-S1 type A uncertainty},
journal = {Metrologia},
year = {2020},
month = {1},
day = {23},
volume = {57},
number = {1},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.1088/1681-7575/ab50d6},
author = {W{\"u}bbeler, G and Elster, C}
}
@Article { FortmeierSLMSHBBKSE2019,
title = {Round robin comparison study on the form measurement of optical freeform surfaces},
journal = {Journal of the European Optical Society-Rapid Publications},
year = {2020},
month = {1},
day = {8},
volume = {16},
number = {2},
tags = {8.4,8.42,Form},
DOI = {10.1186/s41476-019-0124-1},
author = {Fortmeier, Ines and Schachtschneider, Reyko and Ledl, Vit and Matousek, Ondrej and Siepmann, Jens and Harsch, Antonia and Beisswanger, Rolf and Bitou, Youichi and Kondo, Yohan and Schulz, Michael and Elster, Clemens}
}
@Article { LehnertKWCSE2019,
title = {Large-Scale Bayesian Spatial-Temporal Regression with Application to Cardiac MR-Perfusion Imaging},
journal = {SIAM J. Imaging Sci.},
year = {2019},
month = {12},
day = {12},
volume = {12},
number = {4},
pages = {2035--2062},
tags = {8.4,8.42,Regression,LargeScaleDataAna},
DOI = {10.1137/19M1246274},
author = {Lehnert, Judith and Kolbitsch, Christoph and W{\"u}bbeler, Gerd and Chiribiri, Amedeo and Sch{\"a}ffter, Tobias and Elster, Clemens}
}
@Article { KlauenbergE2019,
title = {Testing normality - An introduction with sample size calculation in legal metrology},
journal = {tm - Technisches Messen},
year = {2019},
month = {11},
day = {7},
volume = {86},
number = {12},
pages = {773--783},
tags = {8.4,8.42,Stichprobenverf},
DOI = {10.1515/teme-2019-0148},
author = {Klauenberg, K and Elster, C}
}
@Article { KlauenbergWE2019,
title = {About not Correcting for Systematic Effects},
journal = {Measurement Science Review},
year = {2019},
month = {9},
day = {30},
volume = {19},
number = {5},
pages = {204--208},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.2478/msr-2019-0026},
author = {Klauenberg, K and W{\"u}bbeler, G and Elster, C}
}
@Article { GiengerGOBN2019,
title = {Assessment of deformation of human red blood cells in flow cytometry: measurement and simulation of bimodal forward scatter distributions},
journal = {Biomedical Optics Express},
year = {2019},
month = {9},
day = {1},
volume = {10},
number = {9},
pages = {4531 -- 4550},
tags = {8.4,8.41,Cyto},
DOI = {10.1364/BOE.10.004531},
author = {Gienger, J and Gross, H and Ost, V and B{\"a}r, M and Neukammer, J}
}
@Article { MetznerWE2018,
title = {Approximate large-scale Bayesian spatial modeling with application to quantitative magnetic resonance imaging},
journal = {AStA Adv Stat Anal},
year = {2019},
month = {8},
day = {29},
volume = {103},
number = {3},
pages = {333--355},
tags = {8.4,8.42,Messunsicherheit,Regression,Fingerprinting,LargeScaleDataAna},
DOI = {10.1007/s10182-018-00334-0},
author = {Metzner, S and W{\"u}bbeler, G and Elster, C}
}
@Article { SchmelterOSB2019,
title = {Numerical simulation, validation, and analysis of two-phase slug flow in large horizontal pipes},
journal = {Proceedings of the 18th International Flow Measurement Conference FLOMEKO 2019},
year = {2019},
month = {7},
day = {1},
tags = {8.4,8.41,Flow},
author = {Schmelter, S and Olbrich, M and Schmeyer, E and B{\"a}r, M}
}
@Article { OlbrichSBSOS2019,
title = {Identification of coherent structures in horizontal slug flow},
journal = {Proceedings of the 18th International Flow Measurement Conference FLOMEKO 2019},
year = {2019},
month = {7},
day = {1},
tags = {8.4,8.41,Flow},
author = {Olbrich, M and Schmeyer, E and B{\"a}r, M and Sieber, M and Oberleithner, K and Schmelter, S}
}
@Article { KretzASE2019,
title = {Determination of contrast-detail curves in mammography image quality assessment by a parametric model observer},
journal = {Physica Medica},
year = {2019},
month = {5},
day = {20},
volume = {62},
pages = {120--128},
tags = {8.4,8.42},
DOI = {10.1016/j.ejmp.2019.05.008},
author = {Kretz, T and Anton, M and Sch{\"a}ffter, T and Elster, C}
}
@Article { KulawiakLBE2019,
title = {Active poroelastic two-phase model for the motion of Physarum microplasmodia},
journal = {PLoS One},
year = {2019},
month = {5},
day = {14},
volume = {14},
number = {8},
tags = {8.4,8.41},
DOI = {10.1101/638312},
author = {Kulawiak, D A and L{\"o}ber, J and B{\"a}r, M and Engel, H}
}
@Article { RiazySOAvNS2019,
title = {Porous medium 3D flow simulation of contrast media washout in cardiac MRI reflects myocardial injury},
journal = {Magnetic Resonance in Medicine},
year = {2019},
month = {4},
day = {16},
note = {advance online publication},
tags = {8.4,8.41, flow},
DOI = {10.1002/mrm.27756},
author = {Riazy, L and Sch{\"a}ffter, T and Olbrich, M and Schueler, J A and v. Knobelsdorff-Brenkenhoff, F and Niendorf, T and Schulz-Menger, J}
}
@Article { GiengerSMBN2019,
title = {Refractive index of human red blood cells between 290 nm and 1100 nm determined by optical extinction measurements},
journal = {Scientific Reports},
year = {2019},
month = {3},
day = {15},
volume = {9},
tags = {8.4,8.41,Cyto},
DOI = {10.1038/s41598-019-38767-5},
author = {Gienger, J and Smuda, K and M{\"u}ller, R and B{\"a}r, M and Neukammer, J}
}
@Article { AlvesdBd2019,
title = {Simulation of the Perfusion of Contrast Agent Used in Cardiac Magnetic Resonance: A Step Toward Non-invasive Cardiac Perfusion Quantification},
journal = {Front. Physiol.},
year = {2019},
month = {3},
day = {14},
volume = {10},
number = {177},
tags = {8.4,8.41},
DOI = {10.3389/fphys.2019.00177},
author = {Alves, J. R and de Queiroz, R. A. B and B{\"a}r, M and dos Santos, R. W}
}
@Article { SchachtschneiderSFSE2019,
title = {SimOptDevice: a library for virtual optical experiments},
journal = {Journal of Sensors and Sensor Systems},
year = {2019},
month = {2},
day = {27},
volume = {8},
number = {1},
pages = {105--110},
tags = {8.4, 8.42, Form},
DOI = {10.5194/jsss-8-105-2019},
author = {Schachtschneider, R and Stavridis, M and Fortmeier, I and Schulz, M and Elster, C}
}
@Article { MartinBE2019,
title = {Application of Bayesian model averaging to the determination of thermal expansion of single-crystal silicon},
journal = {Measurement Science and Technology},
year = {2019},
month = {2},
day = {21},
volume = {30},
pages = {045012},
tags = {8.4,8.42,Unsicherheit,Regression},
DOI = {10.1088/1361-6501/ab094b},
author = {Martin, J and Bartl, G and Elster, C}
}
@Article { ReinkenHBK2019,
title = {Anisotropic mesoscale turbulence and pattern formation in microswimmer suspensions induced by orienting external fields},
journal = {New Journal of Physics},
year = {2019},
month = {1},
day = {31},
volume = {21},
number = {1},
pages = {013037},
tags = {8.4,8.43},
DOI = {10.1088\%2F1367-2630\%2Faaff09},
author = {Reinken, H and Heidenreich, S and B{\"a}r, M and Klapp, S. H. L}
}
@Article { KulawiakLBE2018,
title = {Oscillatory motion of a droplet in an active poroelastic two-phase model},
journal = {Journal of Physics D: Applied Physics},
year = {2019},
month = {1},
day = {1},
volume = {52},
number = {1},
pages = {014004},
tags = {8.4,8.41},
DOI = {10.1088/1361-6463/aae41d},
author = {Kulawiak, D A and L{\"o}ber, J and B{\"a}r, M and Engel, H}
}
@Article { OlbrichSROBS2018,
title = {Validation of simulations in multiphase flow metrology by comparison with experimental video observation},
journal = {J. Phys.: Conf. Series},
year = {2018},
month = {11},
day = {1},
volume = {1065},
number = {9},
pages = {092015},
tags = {8.4,8.41,Flow},
DOI = {10.1088/1742-6596/1065/9/092015},
author = {Olbrich, M and Schmeyer, E and Riazy, L and Oberleithner, K and B{\"a}r, M and Schmelter, S}
}
@Article { SchmelterOSB2018,
title = {Validation of multiphase flow simulations by comparison with experimental video observations},
journal = {Proceedings of the North Sea Flow Measurement Workshop 2018},
year = {2018},
month = {11},
day = {1},
tags = {8.4,8.41,Flow},
author = {Schmelter, S and Olbrich, M and Schmeyer, E and B{\"a}r, M}
}
@Article { HeidenreichGB2018,
title = {Bayesian approach to determine critical dimensions from scatterometric measurements},
journal = {Metrologia},
year = {2018},
month = {10},
day = {19},
volume = {55},
number = {6},
pages = {201},
tags = {8.4,8.43, UQ},
DOI = {10.1088/1681-7575/aae41c},
author = {Heidenreich, S and Gross, H and B{\"a}r, M}
}
@Article { LehnertWKCCESSE2018,
title = {Pixel-wise quantification of myocardial perfusion using spatial Tikhonov regularization},
journal = {Physics in Medicine \& Biology},
year = {2018},
month = {10},
day = {10},
volume = {63},
pages = {215017},
tags = {8.4, 8.42,Regression,LargeScaleDataAna},
DOI = {10.1088/1361-6560/aae758},
author = {Lehnert, J and W{\"u}bbeler, G and Kolbitsch, C and Chiribiri, A and Coquelin, L and Ebrard, G and Smith, N and Sch{\"a}ffter, T and Elster, C}
}
@Article { ArielSRHBB2018,
title = {Collective dynamics of two-dimensional swimming bacteria: Experiments and models},
journal = {PHYSICAL REVIEW E},
year = {2018},
month = {9},
day = {24},
volume = {98},
number = {3},
pages = {032415},
tags = {8.4,8.43},
DOI = {10.1103/PhysRevE.98.032415},
author = {Ariel, G and Sidortsov, M and Ryan, S D and Heidenreich, S and B{\"a}r, M and Be'er, A}
}
@Article { WuebbelerBHE2018,
title = {Maintaining consensus for the redefined kilogram},
journal = {Metrologia},
year = {2018},
month = {9},
day = {7},
volume = {55},
number = {5},
pages = {722},
tags = {8.4,8.42,KC},
DOI = {10.1088/1681-7575/aadb6b},
author = {W{\"u}bbeler, G and Bettin, H and H{\"a}rtig, F and Elster, C}
}
@Article { KastnerSHUHKPRWE2018,
title = {Compressed sensing FTIR nano-spectroscopy and nano-imaging},
journal = {Optics Express},
year = {2018},
month = {7},
day = {26},
volume = {14},
pages = {18115--18124},
tags = {8.4,8.42,LargeScaleDataAna},
DOI = {10.1364/OE.26.018115},
author = {K{\"a}stner, B and Schm{\"a}hling, F and Hornemann, A and Ulrich, G and Hoehl, A and Kruskopf, M and Pierz, K and Raschke, M and W{\"u}bbeler, G and Elster, C}
}
@Article { KhaninARE2018,
title = {Assessment of CT image quality using a Bayesian framework},
journal = {IEEE Transactions on Medical Imaging},
year = {2018},
month = {6},
day = {19},
volume = {37},
number = {12},
pages = {2687--2694},
tags = {8.4, 8.42},
DOI = {10.1109/TMI.2018.2848104},
author = {Khanin, A and Anton, M and Reginatto, M and Elster, C}
}
@Article { PossoloBBMW2018,
title = {Value assignment and uncertainty evaluation for single-element reference solutions},
journal = {Metrologia},
year = {2018},
month = {5},
day = {9},
volume = {55},
number = {3},
pages = {404},
tags = {8.4, 8.42},
DOI = {10.1088/1681-7575/aabd57},
author = {Possolo, A and Bodnar, O and Butler, T A and Molloy, J L and Winchester, M R}
}
@Article { BeckerFNRMB2018,
title = {Local control of globally competing patterns in coupled Swift–Hohenberg equations},
journal = {Chaos: An Interdisciplinary Journal of Nonlinear Science},
year = {2018},
month = {4},
day = {30},
volume = {28},
number = {4},
pages = {043121},
tags = {8.4, 8.41, 8.43},
DOI = {10.1063/1.5018139},
author = {Becker, M and Frenzel, T and Niedermayer, T and Reichelt, S and Mielke, A and B{\"a}r, M}
}
@Article { SchachtschneiderFSABBBBKKLLMPRSSWWSE2018,
title = {Interlaboratory comparison measurements of aspheres},
journal = {Measurement Science and Technology},
year = {2018},
month = {4},
day = {9},
volume = {29},
number = {5},
pages = {055010},
tags = {8.4, 8.42, KC, Form},
DOI = {10.1088/1361-6501/aaae96},
author = {Schachtschneider, R and Fortmeier, I and Stavridis, M and Asfour, J and Berger, G and Bergmann, R B and Beutler, A and Bl{\"u}mel, T and Klawitter, H and Kubo, K and Liebl, J and L{\"o}ffler, F and Mee{\ss}, R and Pruss, C and Ramm, D and Sandner, M and Schneider, G and Wendel, M and Widdershoven, I and Schulz, M and Elster, C}
}
@Article { AntonKKRE2018,
title = {A simple parametric model observer for quality assurance in computer tomography},
journal = {Physics in Medicine \& Biology},
year = {2018},
month = {3},
day = {27},
volume = {63},
number = {7},
pages = {5011},
tags = {8.4,8.42},
DOI = {10.1088/1361-6560/aab24a},
author = {Anton, M and Khanin, A and Kretz, T and Reginatto, M and Elster, C}
}
@Article { KlauenbergKKRE2018,
title = {Reducing sample size by tightening test conditions},
journal = {Quality and Reliability Engineering International},
year = {2018},
month = {2},
day = {26},
tags = {8.4, 8.42, Stichprobenverf},
DOI = {10.1002/qre.2256},
author = {Klauenberg, K and Kramer, R and Kroner, C and Rose, J and Elster, C}
}
@Article { ReinkenKBH2018,
title = {Derivation of a hydrodynamic theory for mesoscale dynamics in microswimmer suspensions},
journal = {Physical Review E 97},
year = {2018},
month = {2},
day = {22},
volume = {97},
number = {2},
pages = {022613},
tags = {8.4, 8.43, Active fluids, hydrodynamics theory, microswimmers},
DOI = {10.1103/PhysRevE.97.022613},
author = {Reinken, H and Klapp, S H L and B{\"a}r, M and Heidenreich, S}
}
@Article { StrakaFEK2018,
title = {Hybrid simulation of a segmental orifice plate},
journal = {Flow Measurement and Instrumentation},
year = {2018},
month = {2},
day = {14},
volume = {60},
pages = {124--133},
tags = {8.4,8.41,Flow,UQ},
DOI = {10.1016/j.flowmeasinst.2018.02.006},
author = {Straka, M and Fiebach, A and Eichler, T and Koglin, C}
}
@Article { PossoloB2018,
title = {Approximate Bayesian evaluations of measurement uncertainty},
journal = {Metrologia},
year = {2018},
month = {2},
day = {2},
volume = {55},
number = {2},
pages = {147},
tags = {8.4, 8.42},
DOI = {10.1088/1681-7575/aaa5be},
author = {Possolo, A and Bodnar, O}
}
@Article { BodnarE2016,
title = {Assessment of vague and noninformative priors for Bayesian estimation of the realized random effects in random-effects meta-analysis},
journal = {AStA Advances in Statistical Analysis},
year = {2018},
month = {1},
day = {31},
volume = {102},
number = {1},
pages = {1--20},
tags = {8.42,KC,Unsicherheit},
DOI = {10.1007/s10182-016-0279-7},
author = {Bodnar, O and Elster, C}
}
@Article { WubbelerBE2018,
title = {Robust Bayesian linear regression with application to an analysis of the CODATA values for the Planck constant},
journal = {Metrologia},
year = {2018},
month = {1},
day = {2},
volume = {55},
number = {1},
pages = {20},
tags = {8.4,8.42,Unsicherheit,Regression},
DOI = {10.1088/1681-7575/aa98aa},
author = {W{\"u}bbeler, G and Bodnar, O and Elster, C}
}
@Article { DierlEFKEE2018,
title = {Novel accuracy test for multispectral imaging systems based on \(\Delta\)E measurements},
journal = {Journal of the European Optical Society-Rapid Publications},
year = {2018},
month = {1},
day = {2},
volume = {14},
number = {1},
pages = {1},
tags = {8.4,8.42},
DOI = {10.1186/s41476-017-0069-1},
author = {Dierl, M and Eckhard, T and Frei, B and Klammer, M and Eichst{\"a}dt, S and Elster, C}
}
@Article { GiengerBN2018,
title = {Extinction spectra of suspensions of microspheres: determination of the spectral refractive index and particle size distribution with nanometer accuracy},
journal = {Applied Optics},
year = {2018},
month = {1},
day = {1},
volume = {57},
number = {2},
pages = {344 -- 355},
tags = {8.4,8.41,Cyto},
DOI = {10.1364/AO.57.000344},
author = {Gienger, J and B{\"a}r, M and Neukammer, J}
}
@Article { BuranBN2017,
title = {Control of electrical turbulence by periodic excitation of cardiac tissue},
journal = {Chaos},
year = {2017},
month = {11},
day = {19},
volume = {27},
number = {11},
pages = {113110},
tags = {8.4,8.43,8.41},
DOI = {10.1063/1.5010787},
author = {Buran, P and B{\"a}r, M and Alonso, S and Niedermayer, T}
}
@Article { AlonsoREB2017,
title = {Mechanochemical pattern formation in simple models of active viscoelastic fluids and solids},
journal = {Journal of Physics D: Applied Physics},
year = {2017},
month = {10},
day = {3},
volume = {50},
number = {43},
pages = {434004},
tags = {8.4,8.41},
DOI = {10.1088/1361-6463/aa8a1d},
author = {Alonso, S and Radszuweit, M and Engel, H and B{\"a}r, M}
}
@Article { BarE2018,
title = {Mathematics and Statistics for Digitalization},
journal = {PTB Mitteilungen},
year = {2017},
month = {10},
day = {1},
volume = {127},
number = {4},
pages = {69--74},
tags = {8.4,8.41,8.42},
url = {https://www.ptb.de/cms/fileadmin/internet/publikationen/ptb_mitteilungen/mitt2017/Heft4/PTB-Mitteilungen_2017_Heft_4.pdf},
author = {B{\"a}r, M and Elster, C}
}
@Article { SchmahlingWKRSTSE2017,
title = {Uncertainty evaluation and propagation for spectral measurements},
journal = {Color, Research and Application},
year = {2017},
month = {9},
day = {26},
volume = {43},
number = {1},
pages = {6--16},
tags = {8.4,8.42,Unsicherheit,LargeScaleDataAna},
DOI = {10.1002/col.22185},
author = {Schm{\"a}hling, F and W{\"u}bbeler, G and Kr{\"u}ger, U and Ruggaber, B and Schmidt, F and Taubert, R D and Sperling, A and Elster, C}
}
@Article { MullerHLNVWWW2017,
title = {Verification of calibration methods for determining photon-counting detection efficiency using superconducting nano-wire single photon detectors},
journal = {Opt. Express},
year = {2017},
month = {9},
day = {1},
volume = {25},
number = {18},
pages = {21483--21495},
tags = {8.4,8.42},
DOI = {10.1364/OE.25.021483},
author = {M{\"u}ller, I and Horansky, R D and Lehman, J H and Nam, S W and Vayshenker, I and Werner, L and Wuebbeler, G and White, M}
}
@Article { WubbelerE2017,
title = {A Large-Scale Optimization Method Using a Sparse Approximation of the Hessian for Magnetic Resonance Fingerprinting},
journal = {SIAM J. Imaging Sci.},
year = {2017},
month = {8},
day = {21},
volume = {10},
number = {3},
pages = {979--1004},
tags = {8.4,8.42,Fingerprinting,LargeScaleDataAna},
DOI = {10.1137/16M1095032},
author = {W{\"u}bbeler, G and Elster, C}
}
@Article { WeissenbrunnerFJT2017,
title = {A coupled numerical and laser optical method for on-site calibration of flow meters},
journal = {Eccomas Proceedia UNCECOMP},
year = {2017},
month = {6},
day = {17},
number = {5393},
pages = {576--587},
tags = {8.4,8.41,Flow,UQ},
DOI = {10.7712/120217.5393.16913},
author = {Weissenbrunner, A and Fiebach, A and Juling, M and Thamsen, P U}
}
@Article { ReginattoAE2017,
title = {Assessment of CT image quality using a Bayesian approach},
journal = {Metrologia},
year = {2017},
month = {6},
day = {14},
volume = {54},
number = {4},
pages = {S74--S82},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.1088/1681-7575/aa735b},
author = {Reginatto, M and Anton, M and Elster, C}
}
@Article { EichstadtW2017,
title = {Evaluation of uncertainty for regularized deconvolution: A case study in hydrophone measurements},
journal = {J. Acoust. Soc. Am.},
year = {2017},
month = {6},
day = {6},
volume = {141},
number = {6},
pages = {4155--4167},
tags = {8.4,8.42,Unsicherheit,Dynamik},
DOI = {10.1121/1.4983827},
author = {Eichst{\"a}dt, S and Wilkens, V}
}
@Article { BodnarBE2017,
title = {Bayesian inference for measurements of ionizing radiation under partial information},
journal = {Metrologia},
year = {2017},
month = {5},
day = {11},
volume = {54},
number = {3},
pages = {S29--S33},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.1088/1681-7575/aa69ad},
author = {Bodnar, O and Behrens, R and Elster, C}
}
@Article { KobuschE2017,
title = {A case study in model-based dynamic calibration of small strain gauge force transducers},
journal = {Acta IMEKO},
year = {2017},
month = {4},
day = {1},
volume = {6},
number = {1},
pages = {3--12},
abstract = {Abstract: Investigations of the model-based dynamic calibration of a small strain gauge force transducer of high bandwidth revealed new challenges for parameter identification. This paper discusses a more generalized mechanical model of the calibration set-up employed taking account of the transducer’s connection to its mechanical environment at both ends. Based on new experimental sine and shock force data, the improved model is studied and its parameters are identified. It is shown that the proposed model is capable of linking the calibration results of both calibration methods to a much better degree. This paper is an extended version of the original contribution to the IMEKO 2015 conference in Prague, Czech Republic.},
keywords = {dynamic modelling, parameter identification, sine force calibration, shock force calibration},
tags = {8.4,8.42,Dynamik},
DOI = {10.21014/acta_imeko.v6i1.433},
author = {Kobusch, M and Eichst{\"a}dt, S}
}
@Article { EichstadtESE2017,
title = {Evaluation of dynamic measurement uncertainty – an open-source software package to bridge theory and practice},
journal = {J. Sens. Sens. Syst.},
year = {2017},
month = {2},
day = {14},
volume = {6},
pages = {97-105},
tags = {8.4,8.42,Unsicherheit,Dynamik},
DOI = {10.5194/jsss-6-97-2017},
author = {Eichst{\"a}dt, S and Elster, C and Smith, I M and Esward, T J}
}
@Article { GrossHB2016,
title = {Impact of different stochastic line edge roughness patterns on measurements in scatterometry - a simulation study},
journal = {Measurement},
year = {2017},
month = {2},
day = {1},
volume = {98},
pages = {339--346},
tags = {8.4,8.43,Scatter-Inv},
DOI = {10.1016/j.measurement.2016.08.027},
author = {Gross, H and Heidenreich, S and B{\"a}r, M}
}
@Article { HeidenreichGBW2016,
title = {Uncertainty propagation in computationally expensive models: A survey of sampling methods and application to scatterometry},
journal = {Measurement},
year = {2017},
month = {2},
day = {1},
volume = {97},
number = {79--87},
tags = {8.4,8.43,UQ},
DOI = {10.1016/j.measurement.2016.06.009},
author = {Heidenreich, S and Gross, H and B{\"a}r, M and Wright, L}
}
@Article { BodnarLAPE2017,
title = {Bayesian estimation in random effects meta-analysis using a non-informative prior},
journal = {Statistics in Medicine},
year = {2017},
month = {2},
day = {1},
volume = {39},
number = {2},
pages = {378--399},
tags = {8.4,8.42,KC,Unsicherheit},
ISSN = {1097-0258},
DOI = {10.1002/sim.7156},
author = {Bodnar, O and Link, A and Arendack{\'a}, B and Possolo, A and Elster, C}
}
@Article { ElsterW2017,
title = {Bayesian inference using a noninformative prior for linear Gaussian random coefficient regression with inhomogeneous within-class variances},
journal = {Comput. Stat.},
year = {2017},
month = {1},
day = {3},
volume = {32},
number = {1},
pages = {51--69},
abstract = {A Bayesian inference for a linear Gaussian random coefficient regression model with inhomogeneous within-class variances is presented. The model is moti- vated by an application in metrology, but it may well find interest in other fields. We consider the selection of a noninformative prior for the Bayesian inference to address applications where the available prior knowledge is either vague or shall be ignored. The noninformative prior is derived by applying the Berger and Bernardo reference prior principle with the means of the random coefficients forming the parameters of interest. We show that the resulting posterior is proper and specify conditions for the existence of first and second moments of the marginal posterior. Simulation results are presented which suggest good frequentist properties of the proposed inference. The calibration of sonic nozzle data is considered as an application from metrology. The proposed inference is applied to these data and the results are compared to those obtained by alternative approaches.},
keywords = {random coefficient regression, Bayesian inference, noninformative prior},
tags = {8.42, Regression},
DOI = {10.1007/s00180-015-0641-3},
author = {Elster, C and W{\"u}bbeler, G}
}
@Article { KlauenbergE2017,
title = {Sampling for assurance of future reliability},
journal = {Metrologia},
year = {2017},
month = {1},
day = {2},
volume = {54},
number = {1},
pages = {59--68},
keywords = {8.42, Unsicherheit},
tags = {8.42, Unsicherheit, Stichprobenverf},
DOI = {10.1088/1681-7575/54/1/59},
author = {Klauenberg, K and Elster, C}
}
@Article { WubbelerCE2016,
title = {Evaluation of uncertainties for CIELAB color coordinates},
journal = {Color Research \& Application},
year = {2016},
month = {12},
day = {31},
tags = {8.4,8.42,Unsicherheit},
DOI = {10.1002/col.22109},
author = {W{\"u}bbeler, G and Campos Acosta, J and Elster, C}
}
@Article { BodnarS2016,
title = {CUSUM control schemes for monitoring the covariance matrix of multivariate time series},
journal = {Statistics},
year = {2016},
month = {12},
day = {27},
volume = {51},
number = {4},
pages = {722--744},
tags = {8.4,8.42},
DOI = {10.1080/02331888.2016.1268616},
author = {Bodnar, O and Schmid, W}
}
@Article { GiengerGNB2016,
title = {Determining the refractive index of humanhemoglobin solutions by Kramers–Kronig relations with an improved absorption model.},
journal = {Applied Optics},
year = {2016},
month = {11},
day = {25},
volume = {55},
number = {31},
pages = {8951--8961},
tags = {8.4,8.41,Cyto},
DOI = {10.1364/AO.55.008951},
author = {Gienger, J and Gro{\ss}, H and Neukammer, J and B{\"a}r, M}
}
@Article { AlonsoWB2016,
title = {Reentry and Ectopic Pacemakers Emerge in aThree-Dimensional Model for a Slab of Cardiac Tissue with Diffuse Microfibrosis nearthe Percolation Threshold},
journal = {PLOS One},
year = {2016},
month = {11},
day = {25},
volume = {11},
number = {11},
tags = {8.4,8.41,8.43},
DOI = {10.1371/journal.pone.0166972},
author = {Alonso, S and Weber dos Santos, R and B{\"a}r, M}
}
@Article { GrosmannPB2016_2,
title = {Mesoscale pattern formation of self-propelled rodswith velocity reversal},
journal = {Phys. Rev. E},
year = {2016},
month = {11},
day = {25},
volume = {94},
number = {5},
pages = {050602},
tags = {8.4,8.43,8.41},
DOI = {10.1103/PhysRevE.94.050602},
author = {Gro{\ss}mann, R and Peruani, F and B{\"a}r, M}
}
@Article { WrightTMWBE2016,
title = {Transfer standard uncertainty can cause inconclusive inter-laboratory comparisons},
journal = {Metrologia},
year = {2016},
month = {10},
day = {20},
volume = {53},
number = {6},
pages = {1243},
keywords = {8.42,8.4,KC},
tags = {8.42,8.4,KC},
DOI = {10.1088/0026-1394/53/6/1243},
author = {Wright, J and Toman, B and Mickan, B and W{\"u}bbeler, G and Bodnar, O and Elster, C}
}
@Article { Eichstaedt2016d,
title = {On the evaluation of uncertainties for state estimation with the Kalman filter},
journal = {Measurement Science and Technology},
year = {2016},
month = {10},
day = {20},
volume = {27},
number = {12},
pages = {125009},
abstract = {The Kalman ﬁlter is an established tool for the analysis of dynamic systems with normally distributed noise, and it has been successfully applied in numerous areas. It provides sequentially calculated estimates of the system states along with a corresponding covariance matrix. For nonlinear systems, the extended Kalman ﬁlter is often used. This is derived from the Kalman ﬁlter by linearization around the current estimate. A key issue in metrology is the evaluation of the uncertainty associated with the Kalman ﬁlter state estimates. The “Guide to the Expression of Uncertainty in Measurement” (GUM) and its supplements serve as the de facto standard for uncertainty evaluation in metrology. We explore the relationship between the covariance matrix produced by the Kalman ﬁlter and a GUM-compliant uncertainty analysis. In addition, the results of a Bayesian analysis are considered. For the case of linear systems with known system matrices, we show that all three approaches are compatible. When the system matrices are not precisely known, however, or when the system is nonlinear, this equivalence breaks down and diﬀerent results can then be reached. For precisely known nonlinear systems, though, the result of the extended Kalman ﬁlter still corresponds to the linearized uncertainty propagation of the GUM. The extended Kalman ﬁlter can suﬀer from linearization and convergence errors. These disadvantages can be avoided to some extent by applying Monte Carlo procedures, and we propose such a method which is GUM-compliant and can also be applied online during the estimation. We illustrate all procedures in terms of a two-dimensional dynamic system and compare the results with those obtained by particle ﬁltering, which has been proposed for the approximate calculation of a Bayesian solution. Finally, we give some recommendations based on our ﬁndings.},
keywords = {Kalman filter, uncertainty, dynamic measurement, state-space system, state estimation},
tags = {8.4, 8.42, Dynamik},
DOI = {10.1088/0957-0233/27/12/125009},
author = {Eichst{\"a}dt, S and Makarava, N and Elster, C}
}
@Article { FanKVKBSSWBEST2016,
title = {Direct measurement of the \(\gamma\) He / \(\gamma\) Xe ratio at ultralow magnetic field},
journal = {Journal of Physics: Conference Series},
year = {2016},
month = {10},
day = {14},
volume = {723},
number = {1},
pages = {012045},
tags = {8.42},
DOI = {10.1088/1742-6596/723/1/012045},
author = {Fan, I and Knappe-Gr{\"u}nberg, S and Voigt, J and Kilian, W and Burghoff, M and Stollfuss, D and Schnabel, A and W{\"u}bbeler, G and Bodnar, O and Elster, C and Seifert, F and Trahms, L}
}
@Article { FiebachSKS2016,
title = {Numerical simulation of multiphase flow in a vertically mounted Venturi flow meter},
journal = {Proceedings of the 17th International Flow Measurement Conference FLOMEKO 2016},
year = {2016},
month = {9},
day = {29},
tags = {8.4,8.41,Flow},
author = {Fiebach, A and Schmeyer, E and Knotek, S and Schmelter, S}
}
@Article { KnotekFS2016,
title = {Numerical simulation of multiphase flows in large horizontal pipes},
journal = {Proceedings of the 17th International Flow Measurement Conference FLOMEKO 2016},
year = {2016},
month = {9},
day = {29},
tags = {8.4,8.41,Flow},
author = {Knotek, S and Fiebach, A and Schmelter, S}
}
@Article { HeidenreichDKB2016,
title = {Hydrodynamic length-scale selection in microswimmer suspensions},
journal = {Physical Review E},
year = {2016},
month = {8},
day = {29},
volume = {94},
number = {2},
pages = {020601},
tags = {8.4,8.43,ActFluid},
DOI = {10.1103/PhysRevE.94.020601},
author = {Heidenreich, S and Dunkel, J and Klapp, H.L and B{\"a}r, M}
}
@Article { AlonsoBE2016,
title = {Nonlinear physics of electrical wave propagation in the heart: a review},
journal = {Reports on Progress in Physics},
year = {2016},
month = {8},
day = {29},
volume = {79},
number = {9},
pages = {096601},
tags = {8.4,8.41,8.43,Herz},
DOI = {10.1088/0034-4885/79/9/096601},
author = {Alonso, S and B{\"a}r, M and Echebarria, B}
}
@Article { AlonsoB2016,
title = {Reentry produced by small-scale heterogeneities in a discrete model of cardiac tissue},
journal = {Journal of Physics: Conference Series},
year = {2016},
month = {8},
day = {29},
volume = {727},
number = {1},
pages = {012002},
tags = {8.4,8.41,8.43,Herz},
DOI = {10.1088/1742-6596/727/1/012002},
author = {Alonso, S and B{\"a}r, M}
}
@Article { WeissenbrunnerFSMTL2016,
title = {Simulation-based determination of systematic errors of flow meters due to uncertain inflow conditions},
journal = {Flow Measurement and Instrumentation},
year = {2016},
month = {8},
day = {29},
tags = {8.4,8.41,Flow,UQ},
state = {in_preparation},
DOI = {10.1016/j.flowmeasinst.2016.07.011},
author = {Weissenbrunner, A and Fiebach, A and Schmelter, S and B{\"a}r, M and Thamsen, P.U and Lederer, T}
}
@Article { LangovoySW2016,
title = {Numerical comparison of sampling strategies for BRDF data manifolds},
journal = {Measurement},
year = {2016},
month = {8},
day = {12},
volume = {94},
number = {Supplement C},
pages = {578--584},
keywords = {8.42},
tags = {8.42},
DOI = {10.1016/j.measurement.2016.08.010},
author = {Langovoy, M and Schm{\"a}hling, F and W{\"u}bbeler, G}
}
@Phdthesis { Fortmeier2016,
title = {Zur Optimierung von Auswerteverfahren f{\"u}r Tilted-Wave Interferometer},
journal = {Institut f{\"u}r Technische Optik, Universit{\"a}t Stuttgart},
year = {2016},
month = {7},
day = {31},
volume = {Berichte aus dem Institut f{\"u}r Technische Optik},
number = {82},
keywords = {8.42,Form},
tags = {8.42,Form},
address = {Stuttgart},
school = {Institut f{\"u}r Technische Optik, Universit{\"a}t Stuttgart},
type = {Berichte aus dem Institut f{\"u}r Technische Optik},
DOI = {10.18419/opus-8878},
author = {Fortmeier, I}
}
@Article { WubbelerBE2016,
title = {Bayesian hypothesis testing for key comparisons},
journal = {Metrologia},
year = {2016},
month = {7},
day = {18},
volume = {53},
number = {4},
pages = {1131--1138},
keywords = {8.42,KC},
tags = {8.42,KC},
DOI = {10.1088/0026-1394/53/4/1131},
author = {W{\"u}bbeler, G and Bodnar, O and Elster, C}
}
@Article { DierlEFKEE2016,
title = {Improved estimation of reflectance spectra by utilizing prior knowledge},
journal = {Journal of the Optical Society of America A},
year = {2016},
month = {6},
day = {23},
volume = {33},
number = {7},
pages = {1370--1376},
keywords = {dynamic measurement, dynamic uncertainty, deconvolution},
tags = {8.42, Dynamik, Regression},
DOI = {10.1364/JOSAA.33.001370},
author = {Dierl, M and Eckhard, T and Frei, B and Klammer, M and Eichst{\"a}dt, S and Elster, C}
}
@Article { Eichstaedt2016c,
title = {On challenges in the uncertainty evaluation for time-dependent measurements},
journal = {Metrologia},
year = {2016},
month = {6},
volume = {53},
number = {4},
abstract = {The measurement of quantities with time-dependent values is a common task in many areas of metrology. Although well established techniques are available for the analysis of such measurements, serious scientific challenges remain to be solved to enable their routine use in metrology. In this paper we focus on the challenge of estimating a time-dependent measurand when the relationship between the value of the measurand and the indication is modeled by a convolution. Mathematically, deconvolution is an ill-posed inverse problem, requiring regularization to stabilize the inversion in the presence of noise. We present and discuss deconvolution in three practical applications: thrust-balance, ultra-fast sampling oscilloscopes and hydrophones. Each case study takes a different approach to modeling the convolution process and regularizing its inversion. Critically, all three examples lack the assignment of an uncertainty to the influence of the regularization on the estimation accuracy. This is a grand challenge for dynamic metrology, for which to date no generic solution exists. The case studies presented here cover a wide range of time scales and prior knowledge about the measurand, and they can thus serve as starting points for future developments in metrology. The aim of this work is to present the case studies and demonstrate the challenges they pose for metrology.},
keywords = {dynamic measurement, dynamic uncertainty, deconvolution},
tags = {8.42, Dynamik},
DOI = {10.1088/0026-1394/53/4/S125},
author = {Eichst{\"a}dt, S and Wilkens, V and Dienstfrey, A and Hale, P and Hughes, B and Jarvis, C}
}
@Article { GrosmannPB2013,
title = {Superdiffusion, large-scale synchronization, and topological defects},
journal = {Phys. Rev. E},
year = {2016},
month = {4},
day = {31},
volume = {93},
keywords = {8.43},
tags = {8.4,8.43,8.41},
DOI = {10.1103/PhysRevE.93.040102},
author = {Gro{\ss}mann, R and Peruani, F and B{\"a}r, M}
}
@Article { GrosmannPB2016,
title = {Diffusion properties of active particles with directional reversal},
journal = {New J. Phys},
year = {2016},
month = {4},
day = {31},
volume = {18},
keywords = {8.43},
tags = {8.4,8.43,8.41},
DOI = {10.1088/1367-2630/18/4/043009},
author = {Gro{\ss}mann, R and Peruani, F and B{\"a}r, M}
}
@Article { Alonso_PhysD_2015,
title = {Oscillations and uniaxial mechanochemical waves in a model of an active poroelastic medium: Application to deformation patterns in protoplasmic droplets of Physarum polycephalum},
journal = {Physica D},
year = {2016},
month = {4},
day = {1},
volume = {318},
pages = {58-69},
tags = {8.41, Spatio-Diff, ActFluid},
DOI = {10.1016/j.physd.2015.09.017},
author = {Alonso, S and Strachauer, U and Radszuweit, M and B{\"a}r, M and Hauser, M.J.B}
}
@Article { e73c330da32016,
title = {GUM2DFT — a software tool for uncertainty evaluation of transient signals in the frequency domain},
journal = {Measurement Science and Technology},
year = {2016},
month = {3},
day = {22},
volume = {27},
number = {5},
pages = {055001},
abstract = {The Fourier transform and its counterpart for discrete time signals, the discrete Fourier transform (DFT), are common tools in measurement science and application. Although almost every scientific software package offers ready-to-use implementations of the DFT, the propagation of uncertainties in line with the guide to the expression of uncertainty in measurement (GUM) is typically neglected. This is of particular importance in dynamic metrology, when input estimation is carried out by deconvolution in the frequency domain. To this end, we present the new open-source software tool GUM2DFT , which utilizes closed formulas for the efficient propagation of uncertainties for the application of the DFT, inverse DFT and input estimation in the frequency domain. It handles different frequency domain representations, accounts for autocorrelation and takes advantage of the symmetry inherent in the DFT result for real-valued time domain signals. All tools are presented in terms of examples which form part of the software package. GUM2DFT will foster GUM-compliant evaluation of uncertainty in a DFT-based analysis and enable metrologists to include uncertainty evaluations in their routine work.},
keywords = {dynamic measurements; deconvolution; discrete Fourier transform; uncertainty;},
tags = {8.42, Dynamik},
DOI = {10.1088/0957-0233/27/5/055001},
author = {Eichst{\"a}dt, S and Wilkens, V}
}
@Article { Schmelter_2016_1,
title = {Polynomchaos zur Unsicherheitsquantifizierung in Str{\"o}mungssimulationen f{\"u}r metrologische Anwendungen},
journal = {tm-Technisches Messen},
year = {2016},
month = {1},
day = {8},
volume = {83},
number = {2},
pages = {71-76},
tags = {8.41, Flow, UQ},
web_url = {http://www.degruyter.com/view/j/teme.2016.83.issue-2/teme-2015-0109/teme-2015-0109.xml},
author = {Schmelter, S and Fiebach, A and Weissenbrunner, A}
}
@Article { Fortmeier:16,
title = {Evaluation of absolute form measurements using a tilted-wave interferometer},
journal = {Opt. Express},
year = {2016},
month = {1},
day = {8},
volume = {24},
number = {4},
pages = {3393--3404},
abstract = {Tilted-wave interferometry is a promising measurement technique for the highly accurate measurement of aspheres and freeform surfaces. However, the interferometric fringe evaluation of the sub-apertures causes unknown patch offsets, which currently prevent this measurement technique from providing absolute measurements. Simple strategies, such as constructing differences of optical path length differences (OPDs) or ignoring the piston parameter, can diminish the accuracy resulting from the absolute form measurement. Additional information is needed instead; in this paper, the required accuracy of such information is explored in virtual experiments. Our simulation study reveals that, when one absolute OPD is known within a range of 500 nm, the accuracy of the final measurement result is significantly enhanced.},
keywords = {Interferometry; Metrology; Surface measurements, figure; Aspherics},
tags = {8.42,Form,EMRP-Form},
web_url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-24-4-3393},
publisher = {OSA},
DOI = {10.1364/OE.24.003393},
author = {Fortmeier, I and Stavridis, M and Wiegmann, A and Schulz, M and Osten, W and Elster, C}
}
@Article { Eichstadt2016,
title = {Modellierung dynamischer Messsysteme - von stochastischen Prozessen zu praktikablen Messunsicherheiten},
journal = {tm - Technisches Messen},
year = {2016},
month = {1},
day = {6},
volume = {83},
number = {2},
pages = {66-70},
abstract = {Dynamische Messungen spielen eine zunehmend wichtigere Rolle in der metrologischen und industriellen Praxis. Zugleich stellt die Analyse dynamischer Messungen unter Ber{\"u}cksichtigung metrologischer Gesichtspunkte neue Herausforderungen an die mathematische und statistische Modellierung. Dieser Artikel stellt eine Reihe aktueller Modellierungskonzepte zu den einzelnen Aspekten der Messkette einer dynamischen Messungen vor. Es werden Vor- und Nachteile der Modellierungskonzepte diskutiert und Zielstellungen f{\"u}r zuk{\"u}nftige Forschungsarbeiten herausgestellt.},
tags = {8.42, Dynamik},
web_url = {http://www.degruyter.com/view/j/teme.2016.83.issue-2/teme-2015-0098/teme-2015-0098.xml?format=INT},
ISSN = {0171-8096},
DOI = {10.1515/teme-2015-0098},
author = {Eichst{\"a}dt, S and Elster, C}
}
@Article { Lindner_JFE2015,
title = {A Computational Fluid Dynamics Study on the Gas Mixing Capabilities of a Multiple Inlet System},
journal = {J. Fluids Eng},
year = {2016},
month = {1},
day = {5},
volume = {138},
number = {3},
pages = {031302},
keywords = {8.41, Flow},
tags = {8.41, Flow},
DOI = {10.1115/1.4031380},
author = {Lindner, G and Schmelter, S and Model, R and Nowak, A and Ebert, V and B{\"a}r, M}
}
@Article { Bodnar2016b,
title = {Evaluation of uncertainty in the adjustment of fundamental constants},
journal = {Metrologia},
year = {2016},
month = {1},
day = {5},
volume = {53},
number = {1},
pages = {S46},
abstract = {Combining multiple measurement results for the same quantity is an important task in metrology and in many other areas. Examples include the determination of fundamental constants, the calculation of reference values in interlaboratory comparisons, or the meta-analysis of clinical studies. However, neither the GUM nor its supplements give any guidance for this task. Various approaches are applied such as weighted least-squares in conjunction with the Birge ratio or random effects models. While the former approach, which is based on a location-scale model, is particularly popular in metrology, the latter represents a standard tool used in statistics for meta-analysis. We investigate the reliability and robustness of the location-scale model and the random effects model with particular focus on resulting coverage or credible intervals. The interval estimates are obtained by adopting a Bayesian point of view in conjunction with a non-informative prior that is determined by a currently favored principle for selecting non-informative priors. Both approaches are compared by applying them to simulated data as well as to data for the Planck constant and the Newtonian constant of gravitation. Our results suggest that the proposed Bayesian inference based on the random effects model is more reliable and less sensitive to model misspecifications than the approach based on the location-scale model.},
tags = {8.42, Unsicherheit},
web_url = {http://stacks.iop.org/0026-1394/53/i=1/a=S46},
DOI = {10.1088/0026-1394/53/1/S46},
author = {Bodnar, O and Elster, C and Fischer, J and Possolo, A and Toman, B}
}
@Article { Klauenberg2016,
title = {Markov chain Monte Carlo methods: an introductory example},
journal = {Metrologia},
year = {2016},
month = {1},
day = {3},
volume = {53},
number = {1},
pages = {S32},
abstract = {When the Guide to the Expression of Uncertainty in Measurement (GUM) and methods from its supplements are not applicable, the Bayesian approach may be a valid and welcome alternative. Evaluating the posterior distribution, estimates or uncertainties involved in Bayesian inferences often requires numerical methods to avoid high-dimensional integrations. Markov chain Monte Carlo (MCMC) sampling is such a method---powerful, flexible and widely applied. Here, a concise introduction is given, illustrated by a simple, typical example from metrology. The Metropolis--Hastings algorithm is the most basic and yet flexible MCMC method. Its underlying concepts are explained and the algorithm is given step by step. The few lines of software code required for its implementation invite interested readers to get started. Diagnostics to evaluate the performance and common algorithmic choices are illustrated to calibrate the Metropolis--Hastings algorithm for efficiency. Routine application of MCMC algorithms may be hindered currently by the difficulty to assess the convergence of MCMC output and thus to assure the validity of results. An example points to the importance of convergence and initiates discussion about advantages as well as areas of research. Available software tools are mentioned throughout.},
keywords = {Bayesian, MCMC, Markov chain Monte Carlo},
tags = {8.42, Unsicherheit, Regression},
web_url = {http://stacks.iop.org/0026-1394/53/i=1/a=S32},
DOI = {10.1088/0026-1394/53/1/S32},
author = {Klauenberg, K and Elster, C}
}
@Article { Elster2016a,
title = {Bayesian regression versus application of least squares—an example},
journal = {Metrologia},
year = {2016},
month = {1},
day = {2},
volume = {53},
number = {1},
pages = {S10},
abstract = {Regression is an important task in metrology and least-squares methods are often applied in this context. Bayesian inference provides an alternative that can take into account available prior knowledge. We illustrate similarities and differences of the two approaches in terms of a particular nonlinear regression problem. The impact of prior knowledge utilized in the Bayesian regression depends on the amount of information contained in the data, and by considering data sets with different signal-to-noise ratios the relevance of the employed prior knowledge for the results is investigated. In addition, properties of the two approaches are explored in the context of the particular example.},
tags = {8.4, 8.42, Unsicherheit, Regression},
web_url = {http://stacks.iop.org/0026-1394/53/i=1/a=S10},
DOI = {10.1088/0026-1394/53/1/S10},
author = {Elster, C and W{\"u}bbeler, G}
}
@Article { Bodnar2015,
title = {Objective Bayesian Inference for a Generalized Marginal Random Effects Model},
journal = {Bayesian Analysis},
year = {2016},
month = {1},
day = {1},
volume = {11},
number = {1},
pages = {25-45},
note = {Open Access},
keywords = {objective Bayesian inference,random effects model,reference prior},
tags = {8.42, Unsicherheit},
web_url = {http://projecteuclid.org/euclid.ba/1423083638},
publisher = {International Society for Bayesian Analysis},
ISSN = {1931-6690},
DOI = {10.1214/14-BA933},
author = {Bodnar, O and Link, A and Elster, C}
}
@Article { e73c330da32016_3,
title = {Reconstructing interaction potentials in thin films from real-space images},
journal = {Phys. Rev. E},
year = {2016},
volume = {93},
number = {4},
pages = {043306},
tags = {8.4,8.41},
DOI = {10.1103/PhysRevE.93.043306},
author = {Gienger, J and Severin, N and Rabe, J and Sokolov, I M}
}
@Article { SH,
title = {Generalized Swift-Hohenberg models for dense active suspensions},
journal = {Eur. Phys. J. E},
year = {2016},
volume = {39},
number = {10},
pages = {97},
tags = {8.4,8.43,ActFluid},
DOI = {10.1140/epje/i2016-16097-2},
author = {Oza, AU and Heidenreich, S and Dunkel, J}
}
@Article { e73c330da32016_2,
title = {Numerical prediction of the flow rate through a flow meter with uncertain inflow profile},
journal = {Proceedings of Imeko 2015 XXI World Congress Measurement in Research and Industry},
year = {2015},
month = {11},
day = {30},
tags = {8.41, Flow, UQ},
author = {Weissenbrunner, A and Fiebach, A and Schmelter, S and Straka, M and B{\"a}r, M and Lederer, T}
}
@Article { Grossmann_EPJ2015_2,
title = {A geometric approach to self-propelled motion in isotropic \& anisotropic environments},
journal = {Eur. Phys. J - Special Topics},
year = {2015},
month = {1},
day = {9},
volume = {224},
number = {7},
pages = {1377-1394},
tags = {8.41, ActMatter},
DOI = {10.1140/epjst/e2015-02465-0},
author = {Gro{\ss}mann, R and Peruani, F and B{\"a}r, M}
}
@Article { heidenreich2015bayesian,
title = {Bayesian approach to the statistical inverse problem of scatterometry: Comparison of three surrogate models},
journal = {International Journal for Uncertainty Quantification},
year = {2015},
month = {1},
day = {8},
pages = {511},
tags = {8.43, Scatter-Inv, UQ},
DOI = {10.1615/Int.J.UncertaintyQuantification.2015013050},
author = {Heidenreich, S and Gross, H and B{\"a}r, M}
}
@Article { Bunk,
title = {CCQM-P58.1: Immunoassay Quantitation of Human Cardiac Troponin I.},
journal = {Metrologia},
year = {2015},
month = {1},
day = {8},
volume = {52},
number = {1A},
pages = {08006},
abstract = {The CCQM study P58.1 assessed the equivalence of immunoassay measurements between participating NMIs. The aim of P58.1 was to demonstrate the equivalence of immunoassay measurements to determine the mass concentration of the clinically-relevant protein human cardiac troponin I (cTnI) present at low concentration relative to the protein concentration of the sample matrix. The measurement equivalence was assessed using traceability to a common certified reference material. To quantify cTnI, participants used a homogeneous sandwich-based immunoassay with an enzymatic amplification step. The antibody format consisted of a single capture and single detection antibody (referred to as 1 + 1), both were supplied to study participants. In the previous P58 study, ELISA measurement results were compared between laboratories which all used common ELISA reagents (including 96-well plates), samples, a standard for the production of calibrants, and a detailed ELISA protocol, which were supplied by a single laboratory. The P58.1 study only utilized common samples, a standard of the production of calibrants, and a set of monoclonal antibodies (mAbs). Because much of the experimental procedure for the P58 study was essentially standardized across participating labs, the study primarily highlighted between-laboratory differences in plate sampling designs and in plate reader response. As the participants in the P58.1 study had to produce most of their own analytical reagents and develop their own measurement procedure, the study provides a better evaluation of the equivalence of ELISA measurements between the participating laboratories. Main text. To reach the main text of this paper, click on Final Report [http://www.bipm.org/utils/common/pdf/final_reports/QM/P58/CCQM-P58.1.pdf] The final report has been peer-reviewed and approved for publication by CCQM.},
tags = {8.42,ELISA},
web_url = {http://stacks.iop.org/0026-1394/52/i=1A/a=08006},
DOI = {10.1088/0026-1394/52/1A/08006},
author = {Bunk, D and Noble, J and Knight, A E and Wang, L and Klauenberg, K and Walzel, M and Elster, C}
}
@Article { Radszu_PRE2015,
title = {Cardiac contraction induces discordant alternans and localized block},
journal = {Phys. Rev. E},
year = {2015},
month = {1},
day = {7},
volume = {91},
pages = {022703},
tags = {8.41, Herz},
DOI = {10.1103/PhysRevE.91.022703},
author = {Radszuweit, M and Alvarez-Lacalle, E and B{\"a}r, M and Echebarria, B}
}
@Article { Klauenberg2015_3,
title = {A tutorial on Bayesian Normal linear regression},
journal = {Metrologia},
year = {2015},
month = {1},
day = {7},
volume = {52},
number = {6},
pages = {878--892},
abstract = {Regression is a common task in metrology and often applied to calibrate instruments, evaluate inter-laboratory comparisons or determine fundamental constants, for example. Yet, a regression model cannot be uniquely formulated as a measurement function, and consequently the Guide to the Expression of Uncertainty in Measurement (GUM) and its supplements are not applicable directly. Bayesian inference, however, is well suited to regression tasks, and has the advantage of accounting for additional a priori information, which typically robustifies analyses. Furthermore, it is anticipated that future revisions of the GUM shall also embrace the Bayesian view.Guidance on Bayesian inference for regression tasks is largely lacking in metrology. For linear regression models with Gaussian measurement errors this tutorial gives explicit guidance. Divided into three steps, the tutorial first illustrates how a priori knowledge, which is available from previous experiments, can be translated into prior distributions from a specific class. These prior distributions have the advantage of yielding analytical, closed form results, thus avoiding the need to apply numerical methods such as Markov Chain Monte Carlo. Secondly, formulas for the posterior results are given, explained and illustrated, and software implementations are provided. In the third step, Bayesian tools are used to assess the assumptions behind the suggested approach.These three steps (prior elicitation, posterior calculation, and robustness to prior uncertainty and model adequacy) are critical to Bayesian inference. The general guidance given here for Normal linear regression tasks is accompanied by a simple, but real-world, metrological example. The calibration of a flow device serves as a running example and illustrates the three steps. It is shown that prior knowledge from previous calibrations of the same sonic nozzle enables robust predictions even for extrapolations.},
tags = {8.42, Regression, Unsicherheit},
DOI = {10.1088/0026-1394/52/6/878},
author = {Klauenberg, K and W{\"u}bbeler, G and Mickan, B and Harris, P and Elster, C}
}
@Article { Bosse_TM2015,
title = {Challenges in nanometrology: high precision measurement of position and size},
journal = {Technisches Messen},
year = {2015},
month = {1},
day = {6},
volume = {82},
pages = {346-358},
tags = {8.41, Scatter-Inv},
url = {10.1515/teme-2015-0002},
author = {Bosse, H and Bodermann, B and Dai, G and Fl{\"u}gge, J and Frase, C. G and Gross, H and H{\"a}{\ss}ler-Grohne, W and K{\"o}chert, P and K{\"o}nning, R and Scholze, F and Weichert, C}
}
@Article { Schmelt_JCF2015,
title = {Numerical prediction of the influence of uncertain inflow conditions in pipes by polynomial chaos},
journal = {Int. J. Comp. Fluid. Dyn.},
year = {2015},
month = {1},
day = {5},
volume = {29},
number = {6-8},
pages = {411-422},
tags = {8.41, Flow, UQ},
DOI = {10.1080/10618562.2015.1112899},
author = {Schmelter, S and Fiebach, A and Model, R and B{\"a}r, M}
}
@Article { Kobusch2015,
title = {Investigations for the model-based dynamic calibration of force transducers by using shock excitation},
journal = {ACTA IMEKO},
year = {2015},
month = {1},
day = {5},
volume = {4},
number = {2},
pages = {45-51},
abstract = {Within the scope of the joint research project EMRP IND09 “Traceable dynamic measurements of mechanical quantities”, numerous measurements were performed at PTB’s 20 kN primary shock force calibration device to investigate and validate the approach of a model-based dynamic calibration of force transducers by using shock excitations. The tests included several strain gauge force transducers of greatly differing structural design, size, weight and mechanical coupling. By looking at a few examples, some investigated physical models of the measurement set-up and a developed data analysis procedure for parameter identification based on measured shock data are presented and discussed. The models reproduce the dynamic response including the observed modal oscillations of various origins that limit the usable measurement bandwidth. Moreover, these modal oscillations may have an important role for the parameter identification process, which is further discussed. This paper is an extended version of the original contribution to the IMEKO 2014 conference in Cape Town, South Africa.},
note = {Open Access},
keywords = {model-based dynamic calibration, dynamic calibration, dynamic modelling,editor,force transducers, imeko},
tags = {8.42, Dynamik},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/ACTA_IMEKO_2014_Kobusch_et_al_preprint.pdf},
web_url = {http://acta.imeko.org/index.php/acta-imeko/article/view/IMEKO-ACTA-04\%20\%282015\%29-02-08/384},
author = {Kobusch, M and Eichst{\"a}dt, S and Klaus, L and Bruns, T}
}
@Article { Grossmann_EPJE2015,
title = {Pattern formation in active particle systems due to competing alignment interactions},
journal = {Eur. Phys. J - Special Topics},
year = {2015},
month = {1},
day = {4},
volume = {224},
number = {7},
pages = {1325-1347},
tags = {8.41,ActMatter,8.43},
DOI = {10.1140/epjst/e2015-02462-3},
author = {Gro{\ss}mann, R and Romanczuk, P and B{\"a}r, M and Schimansky-Geier, L}
}
@Article { Klaus2014a,
title = {Dynamic torque calibration by means of model parameter identification},
journal = {ACTA IMEKO},
year = {2015},
month = {1},
day = {4},
volume = {3},
number = {1},
pages = {1-6},
abstract = {For the dynamic calibration of torque transducers, a model of the unmounted transducer and an extended model of the mounted transducer including the measuring device have been developed. The dynamic behaviour of a torque transducer under test will be described by its model parameters. This paper presents the models comprising the known parameters of the measuring device andthe unknown parameters of the transducer and how the calibration measurements are going to be carried out. The principle for the identification of the transducer’s model parameters from measurement data is described using a least squares approach. The influence of a variation of the transducer’s parameters on the frequency response of the expanded model is analysed.},
note = {Open Access},
keywords = {mechanical model,model parameter identification},
tags = {8.42, Dynamik},
web_url = {http://acta.imeko.org/index.php/acta-imeko/article/view/IMEKO-ACTA-04\%20\%282015\%29-02-07/385},
author = {Klaus, L and Arendack{\'a}, B and Kobusch, M and Bruns, T}
}
@Article { Wubbeler2015,
title = {Explanatory power of degrees of equivalence in the presence of a random instability of the common measurand},
journal = {Metrologia},
year = {2015},
month = {1},
day = {3},
volume = {52},
number = {2},
pages = {400--405},
tags = {8.42, Unsicherheit, KC},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/52/2/400},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/52/2/400},
author = {W{\"u}bbeler, G and Bodnar, O and Mickan, B and Elster, C}
}
@Article { Gross2015,
title = {Modeling aspects to improve the solution of the inverse problem in scatterometry},
journal = {Cont. Dyn. S. - S},
year = {2015},
month = {1},
day = {3},
volume = {8},
pages = {497-519},
tags = {8.43,Scatter-Inv},
DOI = {10.3934/dcdss.2015.8.497},
author = {Gro{\ss}, H and Heidenreich, S and Henn, M-A and B{\"a}r, M and Rathsfeld, A}
}
@Article { Kok2015,
title = {Bayesian analysis of a flow meter calibration problem},
journal = {Metrologia},
year = {2015},
month = {1},
day = {2},
volume = {52},
number = {2},
pages = {392-399},
tags = {Regression, 8.42, Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/52/2/392},
publisher = {IOP Publishing},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/52/2/392},
author = {Kok, G J P and van der Veen, A M H and Harris, P M and Smith, I M and Elster, C}
}
@Article { NiedermayerL2015,
title = {Association-dissociation process with aging subunits: Recursive solution},
journal = {Phys. Rev. E},
year = {2015},
month = {1},
day = {1},
volume = {92},
number = {5},
keywords = {8.43},
tags = {8.43},
DOI = {10.1103/PhysRevE.92.052137},
author = {Niedermayer, T and Lipowsky, R}
}
@Article { Klauenberg2015,
title = {Informative prior distributions for ELISA analyses},
journal = {Biostatistics},
year = {2015},
month = {1},
day = {1},
volume = {16},
number = {3},
pages = {454--64},
abstract = {Immunoassays are capable of measuring very small concentrations of substances in solutions and have an immense range of application. Enzyme-linked immunosorbent assay (ELISA) tests in particular can detect the presence of an infection, of drugs, or hormones (as in the home pregnancy test). Inference of an unknown concentration via ELISA usually involves a non-linear heteroscedastic regression and subsequent prediction, which can be carried out in a Bayesian framework. For such a Bayesian inference, we are developing informative prior distributions based on extensive historical ELISA tests as well as theoretical considerations. One consideration regards the quality of the immunoassay leading to two practical requirements for the applicability of the priors. Simulations show that the additional prior information can lead to inferences which are robust to reasonable perturbations of the model and changes in the design of the data. On real data, the applicability is demonstrated across different laboratories, for different analytes and laboratory equipment as well as for previous and current ELISAs with sigmoid regression function. Consistency checks on real data (similar to cross-validation) underpin the adequacy of the suggested priors. Altogether, the new priors may improve concentration estimation for ELISAs that fulfill certain design conditions, by extending the range of the analyses, decreasing the uncertainty, or giving more robust estimates. Future use of these priors is straightforward because explicit, closed-form expressions are provided. This work encourages development and application of informative, yet general, prior distributions for other types of immunoassays.},
tags = {Regression, 8.42, ELISA},
web_url = {http://biostatistics.oxfordjournals.org/content/16/3/454},
ISSN = {1468-4357},
DOI = {10.1093/biostatistics/kxu057},
author = {Klauenberg, K and Walzel, M and Ebert, B and Elster, C}
}
@Article { Siebert_PRE2014,
title = {Dynamics of reation-diffusion patterns controlled by asymmetric nonlocal coupling as a limiting case of differential advection},
journal = {Phys. Rev. E},
year = {2014},
volume = {89},
pages = {052909},
tags = {8.41, RD},
DOI = {10.1103/PhysRevE.89.052909},
author = {Siebert, J and Alonso, S and B{\"a}r, M and Sch{\"o}ll, E}
}
@Article { Meyer2014,
title = {Active Brownian agents with concentration-dependent chemotactic sensitivity},
journal = {Phys. Rev. E},
year = {2014},
volume = {89},
number = {2},
pages = {022711},
abstract = {We study a biologically motivated model of overdamped, autochemotactic Brownian agents with concentration-dependent chemotactic sensitivity. The agents in our model move stochastically and produce a chemical ligand at their current position. The ligand concentration obeys a reaction-diffusion equation and acts as a chemoattractant for the agents, which bias their motion towards higher concentrations of the dynamically altered chemical field. We explore the impact of concentration-dependent response to chemoattractant gradients on large-scale pattern formation, by deriving a coarse-grained macroscopic description of the individual-based model, and compare the conditions for emergence of inhomogeneous solutions for different variants of the chemotactic sensitivity. We focus primarily on the so-called receptor-law sensitivity, which models a nonlinear decrease of chemotactic sensitivity with increasing ligand concentration. Our results reveal qualitative differences between the receptor law, the constant chemotactic response, and the so-called log law, with respect to stability of the homogeneous solution, as well as the emergence of different patterns (labyrinthine structures, clusters, and bubbles) via spinodal decomposition or nucleation. We discuss two limiting cases, where the model can be reduced to the dynamics of single species: (I) the agent density governed by a density-dependent effective diffusion coefficient and (II) the ligand field with an effective bistable, time-dependent reaction rate. In the end, we turn to single clusters of agents, studying domain growth and determining mean characteristics of the stationary inhomogeneous state. Analytical results are confirmed and extended by large-scale GPU simulations of the individual based model.},
keywords = {,Biological,Biomimetic Materials,Biomimetic Materials: chemistry,Biomimetic Materials: metabolism,Chemical,Chemotaxis,Chemotaxis: drug effects,Chemotaxis: physiology,Computer Simulation,Diffusion,Dose-Response Relationship,Drug,Escherichia coli,Escherichia coli: physiology,Models,Statistical,non-linear dynamics},
tags = {8.41, SPP},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/25353513},
ISSN = {1550-2376},
DOI = {10.1103/PhysRevE.89.022711},
author = {Meyer, M and Schimansky-Geier, L and Romanczuk, P}
}
@Article { Possolo2014,
title = {Evaluating the uncertainty of input quantities in measurement models},
journal = {Metrologia},
year = {2014},
volume = {51},
number = {3},
pages = {339--353},
tags = {8.42,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/51/3/339},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/51/3/339},
author = {Possolo, A and Elster, C}
}
@Article { Matthews2014e,
title = {Mathematical modelling to support traceable dynamic calibration of pressure sensors},
journal = {Metrologia},
year = {2014},
volume = {51},
number = {3},
pages = {326-338},
keywords = {dynamic measurement, pressure, parametric model},
tags = {8.42, Dynamik, Regression},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/Mathematical_Modelling_Dynamic_Pressure_preprint.pdf},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/51/3/326},
publisher = {IOP Publishing},
language = {en},
ISBN = {doi:10.1088/0026-1394/51/3/326},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/51/3/326},
author = {Matthews, C and Pennecchi, F and Eichst{\"a}dt, S and Malengo, A and Esward, T and Smith, I M and Elster, C and Knott, A and Arrh{\'e}n, F and Lakka, A}
}
@Article { Wendt2014,
title = {Untersuchungen zum Temperaturverhalten von Fl{\"u}ssigkeiten in gro{\ss}en Lagertanks},
journal = {Technische Sicherheit},
year = {2014},
volume = {11},
pages = {13--17},
keywords = {8.41},
tags = {8.41, Flow},
author = {Wendt, G and Jost, R and Schmelter, S and Werner, D}
}
@Article { Eichstaedt2014,
title = {Evaluation of measurement uncertainties for time-dependent quantities},
journal = {EPJ Web of Conferences},
year = {2014},
volume = {77},
number = {3},
abstract = {One of the main challenges in the analysis of dynamic measurements is the estimation of the time-dependent value of the measurand and the corresponding propagation of uncertainties. In this paper we outline the design of appropriate digital compensation filters as a means of estimating the quantity of interest. For the propagation of uncertainty in the application of such digital filters we present online formulae for finite impulse response and infinite impulse response filters. We also demonstrate a recently developed efficient Monte Carlo method for uncertainty propagation in dynamic measurements which allows calculating point-wise coverage intervals in real-time.},
tags = {8.42, Dynamik},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/epjconf_icm2014_00003.pdf},
booktitle = {EPJ Web of Conferences},
DOI = {10.1051/epjconf/20147700003},
author = {Eichst{\"a}dt, S and Arendack{\'a}, B and Link, A and Elster, C}
}
@Article { Spinelli2014,
title = {Determination of reference values for optical properties of liquid phantoms based on Intralipid and India ink},
journal = {Biomedical optics express},
year = {2014},
volume = {5},
number = {7},
pages = {2037--53},
abstract = {A multi-center study has been set up to accurately characterize the optical properties of diffusive liquid phantoms based on Intralipid and India ink at near-infrared (NIR) wavelengths. Nine research laboratories from six countries adopting different measurement techniques, instrumental set-ups, and data analysis methods determined at their best the optical properties and relative uncertainties of diffusive dilutions prepared with common samples of the two compounds. By exploiting a suitable statistical model, comprehensive reference values at three NIR wavelengths for the intrinsic absorption coefficient of India ink and the intrinsic reduced scattering coefficient of Intralipid-20{\%} were determined with an uncertainty of about 2{\%} or better, depending on the wavelength considered, and 1{\%}, respectively. Even if in this study we focused on particular batches of India ink and Intralipid, the reference values determined here represent a solid and useful starting point for preparing diffusive liquid phantoms with accurately defined optical properties. Furthermore, due to the ready availability, low cost, long-term stability and batch-to-batch reproducibility of these compounds, they provide a unique fundamental tool for the calibration and performance assessment of diffuse optical spectroscopy instrumentation intended to be used in laboratory or clinical environment. Finally, the collaborative work presented here demonstrates that the accuracy level attained in this work for optical properties of diffusive phantoms is reliable.},
keywords = {Medical optics instrumentation,Photon migration,Turbid media},
tags = {8.42,KC},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=boe-5-7-2037{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {2156-7085},
DOI = {10.1364/BOE.5.002037},
author = {Spinelli, L and Botwicz, M and Zolek, N and Kacprzak, M and Milej, D and Sawosz, P and Liebert, A and Weigel, U and Durduran, T and Foschum, F and Kienle, A and Baribeau, F and Leclair, S and Bouchard, J-P and Noiseux, I and Gallant, P and Mermut, O and Farina, A and Pifferi, A and Torricelli, A and Cubeddu, R and Ho, H-C and Mazurenka, M and Wabnitz, H and Klauenberg, K and Bodnar, O and Elster, C and B{\'e}nazech-Lavou{\'e}, M and B{\'e}rub{\'e}-Lauzi{\`e}re, Y and Lesage, F and Khoptyar, D and Subash, A A and Andersson-Engels, S and Di Ninni, P and Martelli, F and Zaccanti, G}
}
@Article { Schmahling2014,
title = {Virtual experiment for near-field goniophotometric measurements},
journal = {Applied optics},
year = {2014},
volume = {53},
number = {7},
pages = {1481--7},
abstract = {Near-field goniometric measurements are employed to determine the photometric characteristics of light sources, i.e., the spatial and angular distribution of the emitted light. To this end, a complex measurement system consisting of a goniometer and a CCD-based imaging photometer is employed. In order to gain insight into the measurement system and to enable characterization of the whole measurement setup, we propose to apply a computer model to conduct virtual experiments. Within the computer model, the current state of all parts of the virtual experiment can be easily controlled. The reliability of the computer model is demonstrated by a comparison to actual measurement results. As an example for the application of the virtual experiment, we present an analysis of the impact of axial malpositions of the goniometer and camera.},
keywords = {Gonio,Light-emitting diodes,Mathematical methods (general),Metrological instrumentation,Metrology,Photometry,virtual experiment},
tags = {8.4,8.42,Form},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=ao-53-7-1481{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {1539-4522},
DOI = {10.1364/AO.53.001481},
author = {Schm{\"a}hling, F and W{\"u}bbeler, G and Lopez, M and Gassmann, F and Kr{\"u}ger, U and Schmidt, F and Sperling, A and Elster, C}
}
@Article { Schuler2014,
title = {Spatio-temporal dynamics induced by competing instabilities in two asymmetrically coupled nonlinear evolution equations},
journal = {Chaos},
year = {2014},
volume = {24},
number = {4},
pages = {043142},
abstract = {Pattern formation often occurs in spatially extended physical, biological, and chemical systems due to an instability of the homogeneous steady state. The type of the instability usually prescribes the resulting spatio-temporal patterns and their characteristic length scales. However, patterns resulting from the simultaneous occurrence of instabilities cannot be expected to be simple superposition of the patterns associated with the considered instabilities. To address this issue, we design two simple models composed by two asymmetrically coupled equations of non-conserved (Swift-Hohenberg equations) or conserved (Cahn-Hilliard equations) order parameters with different characteristic wave lengths. The patterns arising in these systems range from coexisting static patterns of different wavelengths to traveling waves. A linear stability analysis allows to derive a two parameter phase diagram for the studied models, in particular, revealing for the Swift-Hohenberg equations, a co-dimension two bifurcation point of Turing and wave instability and a region of coexistence of stationary and traveling patterns. The nonlinear dynamics of the coupled evolution equations is investigated by performing accurate numerical simulations. These reveal more complex patterns, ranging from traveling waves with embedded Turing patterns domains to spatio-temporal chaos, and a wide hysteretic region, where waves or Turing patterns coexist. For the coupled Cahn-Hilliard equations the presence of a weak coupling is sufficient to arrest the coarsening process and to lead to the emergence of purely periodic patterns. The final states are characterized by domains with a characteristic length, which diverges logarithmically with the coupling amplitude.},
keywords = {Computer Simulation,Feedback,Models, Theoretical,Nonlinear Dynamics,Oscillometry,Oscillometry: methods,Spatio-Temporal Analysis,non-linear dynamics,spatio-temporal},
tags = {8.41, RD, 8.43},
web_url = {http://scitation.aip.org/content/aip/journal/chaos/24/4/10.1063/1.4905017},
publisher = {AIP Publishing},
ISSN = {1089-7682},
DOI = {10.1063/1.4905017},
author = {Sch{\"u}ler, D and Alonso, S. and Torcini, A and B{\"a}r, M}
}
@Article { Radszuweit2014,
title = {An active poroelastic model for mechanochemical patterns in protoplasmic droplets of Physarum polycephalum},
journal = {PloS one},
year = {2014},
volume = {9},
number = {6},
pages = {e99220},
abstract = {Motivated by recent experimental studies, we derive and analyze a two-dimensional model for the contraction patterns observed in protoplasmic droplets of Physarum polycephalum. The model couples a description of an active poroelastic two-phase medium with equations describing the spatiotemporal dynamics of the intracellular free calcium concentration. The poroelastic medium is assumed to consist of an active viscoelastic solid representing the cytoskeleton and a viscous fluid describing the cytosol. The equations for the poroelastic medium are obtained from continuum force balance and include the relevant mechanical fields and an incompressibility condition for the two-phase medium. The reaction-diffusion equations for the calcium dynamics in the protoplasm of Physarum are extended by advective transport due to the flow of the cytosol generated by mechanical stress. Moreover, we assume that the active tension in the solid cytoskeleton is regulated by the calcium concentration in the fluid phase at the same location, which introduces a mechanochemical coupling. A linear stability analysis of the homogeneous state without deformation and cytosolic flows exhibits an oscillatory Turing instability for a large enough mechanochemical coupling strength. Numerical simulations of the model equations reproduce a large variety of wave patterns, including traveling and standing waves, turbulent patterns, rotating spirals and antiphase oscillations in line with experimental observations of contraction patterns in the protoplasmic droplets.},
keywords = {,Biological,Biomechanical Phenomena,Calcium,Calcium: metabolism,Cytoplasm,Cytoplasm: physiology,Cytoskeleton,Cytoskeleton: physiology,Elasticity,Mechanical,Models,Physarum polycephalum,Physarum polycephalum: cytology,Physarum polycephalum: physiology,Stress,pattern formation},
tags = {8.41, ActMatter, ActFluid},
web_url = {http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0099220},
publisher = {Public Library of Science},
ISSN = {1932-6203},
DOI = {10.1371/journal.pone.0099220},
author = {Radszuweit, M and Engel, H and B{\"a}r, M}
}
@Article { Bodnar2014a,
title = {Analytical derivation of the reference prior by sequential maximization of Shannon's mutual information in the multi-group parameter case},
journal = {Journal of Statistical Planning and Inference},
year = {2014},
volume = {147},
pages = {106--116},
abstract = {We provide an analytical derivation of a non-informative prior by sequential maximization of Shannon's mutual information in the multi-group parameter case assuming reasonable regularity conditions. We show that the derived prior coincides with the reference prior proposed by Berger and Bernardo, and that it can be considered as a useful alternative expression for the calculation of the reference prior. In using this expression we discuss the conditions under which an improper reference prior can be uniquely defined, i.e. when it does not depend on the particular choice of nested sequences of compact subsets of the parameter space needed for its construction. We also present the conditions under which the reference prior coincides with Jeffreys' prior.},
keywords = {Bayes,Reference prior,Shannon's mutual information,statistics},
tags = {8.42, Unsicherheit},
web_url = {http://www.sciencedirect.com/science/article/pii/S0378375813002802},
ISSN = {03783758},
DOI = {10.1016/j.jspi.2013.11.003},
author = {Bodnar, O and Elster, C}
}
@Article { Bodnar2014,
title = {On the adjustment of inconsistent data using the Birge ratio},
journal = {Metrologia},
year = {2014},
volume = {51},
number = {5},
pages = {516--521},
tags = {8.42,KC,Regression, Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/51/5/516},
publisher = {IOP Publishing},
language = {en},
ISBN = {doi:10.1088/0026-1394/51/5/516},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/51/5/516},
author = {Bodnar, O and Elster, C}
}
@Article { Eichstadt2014a,
title = {Reliable uncertainty evaluation for ODE parameter estimation - a comparison},
journal = {Journal of Physics: Conference Series},
year = {2014},
volume = {490},
number = {1},
pages = {012230},
keywords = {Regression, ODE, parameter identification, dynamic calibration, modelling},
tags = {8.42,Dynamik, Regression},
web_url = {http://iopscience.iop.org/article/10.1088/1742-6596/490/1/012230},
publisher = {IOP Publishing},
language = {en},
ISSN = {1742-6596},
DOI = {10.1088/1742-6596/490/1/012230},
author = {Eichst{\"a}dt, S and Elster, C}
}
@Article { Dai2014,
title = {Measurements of CD and sidewall profile of EUV photomask structures using CD-AFM and tilting-AFM},
journal = {Meas. Sci. Tech.},
year = {2014},
volume = {25},
number = {4},
pages = {044002},
keywords = {Scatterometrie},
tags = {8.41,Scatter-EUV},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/25/4/044002},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/25/4/044002},
author = {Dai, G and Hahm, K and Scholze, F and Henn, M-A and Gro{\ss}, H and Fluegge, J and Bosse, H}
}
@Article { Alonso2014,
title = {Modeling domain formation of MARCKS and protein kinase C at cellular membranes},
journal = {Eur. Phys. J. E},
year = {2014},
volume = {2},
number = {1},
pages = {1},
keywords = {pattern formation},
tags = {8.41, membrane},
web_url = {http://link.springer.com/10.1140/epjnbp14},
ISSN = {2195-0008},
DOI = {10.1140/epjnbp14},
author = {Alonso, S and B{\"a}r, M}
}
@Article { Arendacka2014c,
title = {Independent Quadratic Forms in 3-Variance-Component Models},
journal = {Communications in Statistics - Theory and Methods},
year = {2014},
volume = {43},
number = {5},
pages = {975-988},
abstract = {This article addresses derivation and existence of quadratic forms that were suggested by Burch (2007) for procedures for inference on variance components in mixed linear models in combination with generalized fiducial inference. A relatively simple algorithm leading to the required quadratic forms in a general 3-variance-component model is stated and designs for two-way ANOVA models without interactions that permit Burch's procedure are characterized. This complements developments in the original article by Burch.},
keywords = {Independent quadratic forms,Random effects,Two-way ANOVA without interactions,Variance components,statistics},
tags = {8.42},
web_url = {http://www.tandfonline.com/doi/abs/10.1080/03610926.2013.841925?journalCode=lsta20},
publisher = {Taylor {\&} Francis Group},
language = {en},
ISBN = {10.1080/03610926.2013.841925},
DOI = {10.1080/03610926.2013.841925},
author = {Arendack{\'a}, B}
}
@Article { Arendacka2014b,
title = {Further remarks on the connection between fixed linear model and mixed linear model},
journal = {Statistical Papers},
year = {2014},
volume = {56},
number = {4},
pages = {1235--1247},
tags = {8.42,mixed linear model,statistics},
web_url = {http://link.springer.com/10.1007/s00362-014-0634-2},
ISSN = {0932-5026},
DOI = {10.1007/s00362-014-0634-2},
author = {Arendack{\'a}, B and Puntanen, S}
}
@Article { Arendacka2014a,
title = {Linear Mixed Models: Gum and Beyond},
journal = {Measurement Science Review},
year = {2014},
volume = {14},
number = {2},
pages = {52-61},
abstract = {In Annex H.5, the Guide to the Evaluation of Uncertainty in Measurement (GUM) [1] recognizes the necessity to analyze certain types of experiments by applying random effects ANOVA models. These belong to the more general family of linear mixed models that we focus on in the current paper. Extending the short introduction provided by the GUM, our aim is to show that the more general, linear mixed models cover a wider range of situations occurring in practice and can be beneﬁcial when employed in data analysis of long-term repeated experiments. Namely, we point out their potential as an aid in establishing an uncertainty budget and as means for gaining more insight into the measurement process. We also comment on computational issues and to make the explanations less abstract, we illustrate all the concepts with the help of a measurement campaign conducted in order to challenge the uncertainty budget in calibration of accelerometers.},
keywords = {dynamic measurement, acceleration, dynamic calibration, mixed model, design of experiment},
tags = {8.42, Dynamik, Unsicherheit},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/epjconf_icm2014_00003.pdf},
web_url = {http://www.degruyter.com/view/j/msr.2014.14.issue-2/msr-2014-0009/msr-2014-0009.xml},
ISSN = {1335-8871},
DOI = {10.2478/msr-2014-0009},
author = {Arendack{\'a}, B and T{\"a}ubner, A and Eichst{\"a}dt, S and Bruns, T and Elster, C}
}
@Article { Grossmann2014,
title = {Vortex arrays and mesoscale turbulence of self-propelled particles},
journal = {Phys. Rev. Lett.},
year = {2014},
volume = {113},
number = {25},
pages = {258104},
abstract = {Inspired by the Turing mechanism for pattern formation, we propose a simple self-propelled particle model with short-range alignment and antialignment at larger distances. It is able to produce orientationally ordered states, periodic vortex patterns, and mesoscale turbulence, which resembles observations in dense suspensions of swimming bacteria. The model allows a systematic derivation and analysis of a kinetic theory as well as hydrodynamic equations for density and momentum fields. A phase diagram with regions of pattern formation as well as orientational order is obtained from a linear stability analysis of these continuum equations. Microscopic Langevin simulations of self-propelled particles are in agreement with these findings.},
keywords = {pattern formation,turbulence},
tags = {8.41,ActMatt,8.43},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/25554911},
ISSN = {1079-7114},
DOI = {10.1103/PhysRevLett.113.258104},
author = {Gro{\ss}mann, R and Romanczuk, P and B{\"a}r, M and Schimansky-Geier, L}
}
@Article { Haslett2014,
title = {The link between the mixed and fixed linear models revisited},
journal = {Statistical Papers},
year = {2014},
volume = {56},
number = {3},
pages = {849--861},
keywords = {mixed linear models,statistics},
tags = {8.42, Unsicherheit},
web_url = {http://link.springer.com/10.1007/s00362-014-0611-9},
ISSN = {0932-5026},
DOI = {10.1007/s00362-014-0611-9},
author = {Haslett, S J and Puntanen, S and Arendack{\'a}, B}
}
@Article { Heidenreich2014a,
title = {A surrogate model enables a Bayesian approach to the inverse problem of scatterometry},
journal = {J. Phys. Conf. Ser.},
year = {2014},
volume = {490},
number = {1},
pages = {012007},
tags = {8.43,Bayes,Scatter-Inv,Regression,8.42, UQ},
web_url = {http://iopscience.iop.org/article/10.1088/1742-6596/490/1/012007},
publisher = {IOP Publishing},
language = {en},
ISSN = {1742-6596},
DOI = {10.1088/1742-6596/490/1/012007},
author = {Heidenreich, S and Gross, H and Henn, M-A and Elster, C and B{\"a}r, M}
}
@Article { John2014,
title = {Traveling waves and global oscillations triggered by attractive molecular interactions in an excitable system},
journal = {Phys. Rev. E},
year = {2014},
volume = {90},
number = {5-1},
pages = {052913},
abstract = {During pattern formation in spatially extended systems, different mechanisms with different characteristic length scales, e.g., reaction-diffusion processes or molecular interactions, can be active. Such multiscale effects may generate new phenomena, which are not observed in systems where pattern formation occurs on a single scale. Here, we derive and analyze a reaction-diffusion model of the FitzHugh-Nagumo type with short-range attractive molecular interactions of the activator species. The model exhibits a wave instability. Simulations in one and two dimensions show traveling waves with a wavelength set by the parameters of the molecular interaction in the model. In two dimensions, simulations reveal a labyrinthine arrangement of the waves in systems with isotropic diffusion, whereas parallel bands of counterpropagating waves are formed in simulations of a model with anisotropic diffusion. The latter findings are in good qualitative agreement with experimental observation in the catalytic NO+H{\textbackslash_}\{\{\}2{\}} reaction on an anisotropic Rh(110) surface. In addition we have identified a transition regime in the simulations, where a short scale instability triggers global oscillations in an excitable regime.},
keywords = {pattern formation},
tags = {8.41, exc-media},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/25493864},
ISSN = {1550-2376},
DOI = {10.1103/PhysRevE.90.052913},
author = {John, K and Alonso, S. and B{\"a}r, M}
}
@Article { Henn2014,
title = {Improved reconstruction of critical dimensions in extreme ultraviolet scatterometry by modeling systematic errors},
journal = {Measurement Science and Technology},
year = {2014},
volume = {25},
number = {4},
pages = {044003},
tags = {8.43,Scatter-Inv,Scatterometrie, 8.42},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/25/4/044003},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/25/4/044003},
author = {Henn, M-A and Gross, H and Heidenreich, S and Scholze, F and Elster, C and B{\"a}r, M}
}
@Article { Heidenreich2014,
title = {Numerical simulations of a minimal model for the fluid dynamics of dense bacterial suspensions},
journal = {J.Phys.: Conf. Ser.},
year = {2014},
volume = {490},
number = {1},
pages = {012126},
keywords = {8.43,fluid dynamics},
tags = {8.43, ActFluid},
web_url = {http://iopscience.iop.org/article/10.1088/1742-6596/490/1/012126},
publisher = {IOP Publishing},
language = {en},
ISSN = {1742-6596},
DOI = {10.1088/1742-6596/490/1/012126},
author = {Heidenreich, S and Klapp, S H L and B{\"a}r, M}
}
@Article { Gross2014,
title = {Modelling line edge roughness in periodic line-space structures by Fourier optics to improve scatterometry},
journal = {J. Europ.Opt. Soci.Rap. Pub.},
year = {2014},
volume = {9},
pages = {14003},
abstract = {In the present paper, we propose a 2D-Fourier transform method as a simple and efficient algorithm for stochastical and numerical studies to investigate the systematic impacts of line edge roughness on light diffraction pattern of periodic line-space structures. The key concept is the generation of ensembles of rough apertures composed of many slits, to calculate the irradiance of the illuminated rough apertures far away from the aperture plane, and a comparison of their light intensities to those of the undisturbed, {\^a}{\euro}™non-rough{\^a}{\euro}™ aperture. We apply the Fraunhofer approximation and interpret the rough apertures as binary 2D-gratings to compute their diffraction patterns very efficiently as the 2D-Fourier transform of the light distribution of the source plane. The rough edges of the aperture slits are generated by means of power spectrum density (PSD) functions, which are often used in metrology of rough geometries. The mean efficiencies of the rough apertures reveal a systematic exponential decrease for higher diffraction orders if compared to the diffraction pattern of the unperturbed aperture. This confirms former results, obtained by rigorous calculations with computational expensive finite element methods (FEM) for a simplified roughness model. The implicated model extension for scatterometry by an exponential damping factor for the calculated efficiencies allows to determine the standard deviation \(\sigma\){\textbackslash_} r of line edge roughness along with the critical dimensions (CDs), i.e., line widths, heights and other profile properties in the sub-micrometer range. First comparisons with the corresponding roughness value determined by 3D atomic force microscopy (3D AFM) reveal encouraging results.},
keywords = {Scatterometrie,Scatterometry,atomic force microscopy,line edge roughness,power spectrum density},
tags = {8.43,Scatter-Inv},
web_url = {http://www.jeos.org/index.php/jeos{\textbackslash_}rp/article/view/14003},
language = {en},
ISSN = {1990-2573},
DOI = {10.2971/jeos.2014.14003},
author = {Gro{\ss}, H and Heidenreich, S and Henn, M-A and Dai, G and Scholze, F and B{\"a}r, M}
}
@Article { Geckeler2014,
title = {Capabilities and limitations of the self-calibration of angle encoders},
journal = {Measurement Science and Technology},
year = {2014},
volume = {25},
number = {5},
pages = {055003},
tags = {8.42,angle encoder,calibration},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/25/5/055003},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/25/5/055003},
author = {Geckeler, R D and Link, A and Krause, M and Elster, C}
}
@Article { Fortmeier2014,
title = {Analytical Jacobian and its application to tilted-wave interferometry},
journal = {Optics express},
year = {2014},
volume = {22},
number = {18},
pages = {21313--25},
abstract = {Tilted-wave interferometry (TWI) is a novel optical measurement principle for the measurement of aspherical surfaces. For the reconstruction of the wavefront and the surface under test, respectively, perturbation methods are applied, which require the calculation of the Jacobian matrix. For the practical use of the instrument, a fast and exact calculation of the Jacobian matrices is crucial, since this strongly influences the calculation times of the TWI. By applying appropriate approaches in optical perturbation methods we are able to calculate the required Jacobian matrices analytically when the nominal optical path through the system is given. As a result, calculation times for the TWI can be considerably reduced. We finally illustrate the improved TWI procedure and apply methods of optimal design to determine optimal positions of the surface under test. For such applications the fast calculation of the Jacobian matrices is essential.},
keywords = {Aspherics,Interferometry,Mathematical methods (general),Metrology,Surface measurements,TWI,figure,tilted-wave},
tags = {8.42,EMRP_Form,Form,SimOpt},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=oe-22-18-21313{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {1094-4087},
DOI = {10.1364/OE.22.021313},
author = {Fortmeier, I and Stavridis, M and Wiegmann, A and Schulz, M and Osten, W and Elster, C}
}
@Article { Fiebach2014,
title = {Uniform global bounds for solutions of an implicit Voronoi finite volume method for reaction{\^a}{\euro}“diffusion problems},
journal = {Numerische Mathematik},
year = {2014},
volume = {128},
number = {1},
pages = {31--72},
keywords = {finite elements,finite volumes,voronoi},
tags = {8.41},
web_url = {http://link.springer.com/10.1007/s00211-014-0604-6},
ISSN = {0029-599X},
DOI = {10.1007/s00211-014-0604-6},
author = {Fiebach, A and Glitzky, A and Linke, A}
}
@Article { Elster2014,
title = {Bayesian uncertainty analysis compared with the application of the GUM and its supplements},
journal = {Metrologia},
year = {2014},
volume = {51},
number = {4},
pages = {S159--S166},
tags = {8.42, Bayesian, Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/51/4/S159},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/51/4/S159},
author = {Elster, C}
}
@Article { f3ee8757792015,
title = {Numerical investigation of temperature distributions in large storage tanks},
journal = {Proceedings of Flomeko 2013 16th International Flow Measurement Conference},
year = {2013},
month = {12},
day = {31},
tags = {8.41, Flow},
author = {Schmelter, S and Model, R and Wendt, G and B{\"a}r, M}
}
@Article { JegouNLCR2013,
title = {On Phosphate Release in Actin Filaments},
journal = {Biophysical journal},
year = {2013},
month = {1},
day = {1},
volume = {104},
number = {12},
keywords = {8.43},
tags = {8.43},
misc = {equal contributed},
DOI = {10.1016\%2Fj.bpj.2013.05.019},
author = {Jegou, A and Niedermayer, T and Lipowsky, R and Carlier, M.F and Romet-Lemonne, G}
}
@Article { Heiden_PRL2013,
title = {Fluid Dynamics of Bacterial Turbulence},
journal = {Phys. Rev. Lett.},
year = {2013},
volume = {110},
pages = {228102},
tags = {8.43, ActFluid},
DOI = {10.1103/PhysRevLett.110.228102},
author = {Dunkel, J and Heidenreich, S and Drescher, K and Wensink, H. H and B{\"a}r, M and Goldstein, R. E}
}
@Article { Radszuweit2013,
title = {Intracellular mechanochemical waves in an active poroelastic model},
journal = {Phys. Rev. Lett.},
year = {2013},
volume = {110},
number = {13},
pages = {138102},
abstract = {Many processes in living cells are controlled by biochemical substances regulating active stresses. The cytoplasm is an active material with both viscoelastic and liquid properties. We incorporate the active stress into a two-phase model of the cytoplasm which accounts for the spatiotemporal dynamics of the cytoskeleton and the cytosol. The cytoskeleton is described as a solid matrix that together with the cytosol as an interstitial fluid constitutes a poroelastic material. We find different forms of mechanochemical waves including traveling, standing, and rotating waves by employing linear stability analysis and numerical simulations in one and two spatial dimensions.},
keywords = {Biological,Biomechanical Phenomena,Cell Physiological Phenomena,Cytoplasm,Cytoplasm: chemistry,Cytoskeleton,Cytoskeleton: chemistry,Elasticity,Extracellular Fluid,Extracellular Fluid: chemistry,Models,Viscosity},
tags = {8.41, ActMatt, ActFluid},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/23581377},
ISSN = {1079-7114},
DOI = {10.1103/PhysRevLett.110.138102},
author = {Radszuweit, M and Alonso, S. and Engel, H and B{\"a}r, M}
}
@Article { Peruani2013,
title = {A kinetic model and scaling properties of non-equilibrium clustering of self-propelled particles},
journal = {New J. Phys.},
year = {2013},
volume = {15},
number = {6},
pages = {065009},
tags = {8.41, SPP},
web_url = {http://iopscience.iop.org/article/10.1088/1367-2630/15/6/065009},
publisher = {IOP Publishing},
language = {en},
ISBN = {doi:10.1088/1367-2630/15/6/065009},
ISSN = {1367-2630},
DOI = {10.1088/1367-2630/15/6/065009},
author = {Peruani, F and B{\"a}r, M}
}
@Article { Jousten2014,
title = {A standard to test the dynamics of vacuum gauges in the millisecond range},
journal = {Vacuum},
year = {2013},
volume = {100},
pages = {14--17},
abstract = {Vacuum gauges that control fast processes in industrial applications, e.g. load locks, should immediately react to pressure changes. To study the response time of vacuum gauges to rapid pressure changes, a dynamic vacuum standard was developed where the pressure may change from 100 kPa to 100 Pa within 20 ms in a step-wise manner or within longer times up to 1 s in a predictable manner. This is accomplished by a very fast opening gate valve DN40 and exchangeable orifices and ducts through which the mass flow rate can be calculated by gas flow simulation software. A simple physical model can be used to approximate the calculations. Experiments have been performed with capacitance diaphragm gauges with improved electronics to give a read-out every 0.7 ms. Preliminary results indicate that their response time is at most 1.7 ms, but may be significantly less.},
keywords = {Choked flow,Dynamic pressure,Response time,Vacuum gauge,Vacuum metrology},
tags = {8.41,Flow},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/8.42/DYNAMIK/842_dynamik_Sensors_2010_10_7621.pdf},
web_url = {http://www.sciencedirect.com/science/article/pii/S0042207X13002546},
ISSN = {0042207X},
DOI = {10.1016/j.vacuum.2013.07.037},
author = {Jousten, K and Pantazis, S and Buthig, J and Model, R and W{\"u}est, M and Iwicki, J}
}
@Article { Jousten2013,
title = {Final report of key comparison CCM.P-K12 for very low helium flow rates (leak rates)},
journal = {Metrologia},
year = {2013},
volume = {50},
number = {1A},
pages = {07001--07001},
tags = {8.42,KC},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/50/1A/07001},
publisher = {IOP Publishing},
language = {en},
ISSN = {1681-7575},
DOI = {10.1088/0026-1394/50/1A/07001},
author = {Jousten, K and Arai, K and Becker, U and Bodnar, O and Boineau, F and Fedchak, J A and Gorobey, V and Jian, W and Mari, D and Mohan, P and Setina, J and Toman, B and Vivcar, M and Yan, Y H}
}
@Article { Wubbeler2013,
title = {Simplified evaluation of magnetic field fluctuation thermometry},
journal = {Measurement Science and Technology},
year = {2013},
volume = {24},
number = {11},
pages = {115004},
tags = {8.42,Bayes,MFFT,Regression, Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/24/11/115004},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/24/11/115004},
author = {W{\"u}bbeler, G and Elster, C}
}
@Article { Bodnar2013a,
title = {Application of Bayesian model averaging using a fixed effects model with linear drift for the analysis of key comparison CCM.P-K12},
journal = {Measurement Techniques},
year = {2013},
volume = {56},
number = {6},
pages = {584--590},
tags = {8.42,Bayes,KC},
web_url = {http://link.springer.com/10.1007/s11018-013-0249-3},
ISSN = {0543-1972},
DOI = {10.1007/s11018-013-0249-3},
author = {Bodnar, O and Link, A and Klauenberg, K and Jousten, K and Elster, C}
}
@Article { Bodnar2013,
title = {Robust Surveillance of Covariance Matrices Using a Single Observation},
journal = {Sankhya A},
year = {2013},
volume = {76},
number = {2},
pages = {219--256},
tags = {8.42,statistics},
web_url = {http://link.springer.com/10.1007/s13171-013-0044-x},
ISSN = {0976-836X},
DOI = {10.1007/s13171-013-0044-x},
author = {Bodnar, O and Bodnar, T and Okhrin, Y}
}
@Article { Eichstadt2013a,
title = {Comparison of the Richardson-Lucy method and a classical approach for spectrometer bandpass correction},
journal = {Metrologia},
year = {2013},
volume = {50},
number = {2},
pages = {107-118},
abstract = {Bandpass correction in spectrometer measurements using monochromators is often necessaryin order to obtain accurate measurement results. The classical approach of spectrometer bandpass correction is based on local polynomial approximations and the use of ﬁnite differences. Here we compare this approach with an extension of the Richardson–Lucy method, which is well known in image processing, but has not been applied to spectrum bandpass correction yet. Using an extensive simulation study and a practical example, we demonstrate the potential of the Richardson–Lucy method. In contrast to the classical approach, it is robust w.r.t. wavelength step size and measurement noise. In almost all cases the Richardson–Lucy method turns out to be superior to the classical approach both in terms of spectrum estimate and its associated uncertainties.},
keywords = {dynamic measurement, bandwidth correction, spectral estimation, deconvolution},
tags = {8.42, Dynamik},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/Eichstaedt_bandwidth_correction.pdf},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/50/2/107},
publisher = {IOP Publishing},
language = {en},
DOI = {10.1088/0026-1394/50/2/107},
author = {Eichst{\"a}dt, S and Schm{\"a}hling, F and W{\"u}bbeler, G and Anhalt, K and B{\"u}nger, L and Kr{\"u}ger, U and Elster, C}
}
@Article { Ehret2013,
title = {Optical measurement of absolute flatness with the deflectometric measurement systems at PTB},
journal = {Journal of Physics: Conference Series},
year = {2013},
volume = {425},
number = {15},
pages = {152016},
tags = {8.42, Form, SimOpt},
web_url = {http://iopscience.iop.org/article/10.1088/1742-6596/425/15/152016},
publisher = {IOP Publishing},
language = {en},
ISSN = {1742-6588},
DOI = {10.1088/1742-6596/425/15/152016},
author = {Ehret, G and Schulz, M and Baier, M and Fitzenreiter, A}
}
@Article { Dunkel2013,
title = {Minimal continuum theories of structure formation in dense active fluids},
journal = {New J. Phys.},
year = {2013},
volume = {15},
number = {4},
pages = {045016},
tags = {8.43, ActFluid},
web_url = {http://iopscience.iop.org/article/10.1088/1367-2630/15/4/045016},
publisher = {IOP Publishing},
language = {en},
ISSN = {1367-2630},
DOI = {10.1088/1367-2630/15/4/045016},
author = {Dunkel, J and Heidenreich, S and B{\"a}r, M and Goldstein, R E}
}
@Article { Dahmlow2013,
title = {Twists of opposite handedness on a scroll wave},
journal = {Phys. Rev. Lett.},
year = {2013},
volume = {110},
number = {23},
pages = {234102},
abstract = {The dynamic interaction of scroll waves in the Belousov-Zhabotinsky reaction with a vertically orientated gradient of excitability is studied by optical tomography. This study focuses on scroll waves, whose filaments were oriented almost perpendicular to the gradient. Whereas scroll waves with filaments exactly perpendicular to the gradient remain unaffected, filaments with a component parallel to the gradient develop a twist. Scroll waves with U-shaped filaments exhibit twists starting from both of its ends, resulting in scroll waves whose filaments display a pair of twists of opposite handedness. These twists are separated by a nodal plane where the filament remains straight and untwisted. The experimental findings were reproduced by numerical simulations using the Oregonator model and a linear gradient of excitability almost perpendicular to the orientation of the filament.},
keywords = {Arrhythmias,Cardiac,Cardiac: physiopathology,Heart,Heart: physiology,Models,Theoretical},
tags = {8.41,Herz},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/25167496},
ISSN = {1079-7114},
DOI = {10.1103/PhysRevLett.110.234102},
author = {D{\"a}hmlow, P and Alonso, S. and B{\"a}r, M and Hauser, M J B}
}
@Article { Alonso2013,
title = {Negative tension of scroll wave filaments and turbulence in three-dimensional excitable media and application in cardiac dynamics},
journal = {Bull. Math. Biol.},
year = {2013},
volume = {75},
number = {8},
pages = {1351--76},
abstract = {Scroll waves are vortices that occur in three-dimensional excitable media. Scroll waves have been observed in a variety of systems including cardiac tissue, where they are associated with cardiac arrhythmias. The disorganization of scroll waves into chaotic behavior is thought to be the mechanism of ventricular fibrillation, whose lethality is widely known. One possible mechanism for this process of scroll wave instability is negative filament tension. It was discovered in 1987 in a simple two variables model of an excitable medium. Since that time, negative filament tension of scroll waves and the resulting complex, often turbulent dynamics was studied in many generic models of excitable media as well as in physiologically realistic models of cardiac tissue. In this article, we review the work in this area from the first simulations in FitzHugh-Nagumo type models to recent studies involving detailed ionic models of cardiac tissue. We discuss the relation of negative filament tension and tissue excitability and the effects of discreteness in the tissue on the filament tension. Finally, we consider the application of the negative tension mechanism to computational cardiology, where it may be regarded as a fundamental mechanism that explains differences in the onset of arrhythmias in thin and thick tissue.},
keywords = {8.41,Animals,Arrhythmias,Cardiac,Cardiac: etiology,Cardiac: physiopathology,Cardiovascular,Electrophysiological Phenomena,Excitation Contraction Coupling,Heart Conduction System,Heart Conduction System: physiology,Hemorheology,Humans,Imaging,Mathematical Concepts,Models,Myocardial Contraction,Three-Dimensional},
tags = {8.41, Herz},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/22829178},
ISSN = {1522-9602},
DOI = {10.1007/s11538-012-9748-7},
author = {Alonso, S and Panfilov, A V}
}
@Article { Alonso2013a,
title = {Reentry near the percolation threshold in a heterogeneous discrete model for cardiac tissue},
journal = {Phys. Rev. Lett.},
year = {2013},
volume = {110},
number = {15},
pages = {158101},
abstract = {Arrhythmias in cardiac tissue are related to irregular electrical wave propagation in the heart. Cardiac tissue is formed by a discrete cell network, which is often heterogeneous. A localized region with a fraction of nonconducting links surrounded by homogeneous conducting tissue can become a source of reentry and ectopic beats. Extensive simulations in a discrete model of cardiac tissue show that a wave crossing a heterogeneous region of cardiac tissue can disintegrate into irregular patterns, provided the fraction of nonconducting links is close to the percolation threshold of the cell network. The dependence of the reentry probability on this fraction, the system size, and the degree of excitability can be inferred from the size distribution of nonconducting clusters near the percolation threshold.},
keywords = {Action Potentials,Cardiovascular,Computer Simulation,Heart,Heart: physiology,Models},
tags = {8.41, Herz, 8.43},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/25167313},
ISSN = {1079-7114},
DOI = {10.1103/PhysRevLett.110.158101},
author = {Alonso, S and B{\"a}r, M}
}
@Article { Aranson2013,
title = {Viewpoint: The Aquatic Dance of Bacteria},
journal = {Physics},
year = {2013},
volume = {6},
tags = {8.41, ActMatter},
web_url = {http://physics.aps.org/articles/v6/61},
publisher = {American Physical Society},
language = {en},
author = {Aranson, I}
}
@Article { Elster2013,
title = {Analysis of key comparison data: critical assessment of elements of current practice with suggested improvements},
journal = {Metrologia},
year = {2013},
volume = {50},
number = {5},
pages = {549--555},
tags = {8.42,Bayes,KC},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/50/5/549},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/50/5/549},
author = {Elster, C and Toman, B}
}
@Phdthesis { Radszuweit2013a,
title = {An Active Poroelastic Model for Cytoplasm and Pattern Formation in Protoplasmic Droplets of Physarum Polycephalum},
year = {2013},
tags = {8.41, ActMatter},
school = {TU Berlin},
author = {Radszuweit, M}
}
@Phdthesis { Kohl2013,
title = {Blind separation of dependent source signals for MEG sensory stimulation experiments},
year = {2013},
tags = {8.42,Gehirn,SingleTrial},
school = {TU Berlin},
type = {PhD Thesis},
author = {Kohl, F}
}
@Phdthesis { Henn_Thesis,
title = {Statistical Approaches to the Inverse Problem of Scatterometry},
year = {2013},
keywords = {8.41,8.42,Scatter-Inv,Scatterometrie},
tags = {8.41,Scatter-Inv},
school = {TU Berlin},
author = {Henn, M-A}
}
@Phdthesis { Fiebach2013,
title = {A dissipative finite volume scheme for reaction-diffusion systems in heterogeneous materials},
year = {2013},
keywords = {discrete Moser iteration,dissipative finite volume scheme,heterogeneous materials,reaction-diffusion systems},
tags = {8.41},
web_url = {http://www.diss.fu-berlin.de/diss/receive/FUDISS{\textbackslash_}thesis{\textbackslash_}000000096910},
language = {English},
author = {Fiebach, A}
}
@Article { NiedermayerJCGHRCL2012,
title = {Intermittent depolymerization of actin filaments is caused by photo-induced dimerization of actin protomers},
journal = {Proc. Natl. Acad. Sci. U.S.A.},
year = {2012},
month = {1},
day = {1},
volume = {109},
number = {27},
pages = {10769--10774},
keywords = {8.43},
tags = {8.43},
misc = {equal contributed},
DOI = {10.1073\%2Fpnas.1121381109},
author = {Niedermayer, T and Jegou, A and Chieze, L and Guichard, B and Helfer, E and Romet-Lemonne, G and Carlier, M.F and Lipowsky, R}
}
@Article { Eichstaedt2012a,
title = {Efficient implementation of a Monte Carlo method for uncertainty evaluation in dynamic measurements},
journal = {Metrologia},
year = {2012},
volume = {49},
number = {3},
pages = {401},
abstract = {Measurement of quantities having time-dependent values such as force, acceleration or pressure is a topic of growing importance in metrology. The application of the Guide to the Expression of Uncertainty in Measurement (GUM) and its Supplements to the evaluation of uncertainty for such quantities is challenging. We address the efficient implementation of the Monte Carlo method described in GUM Supplements 1 and 2 for this task. The starting point is a time-domain observation equation. The steps of deriving a corresponding measurement model, the assignment of probability distributions to the input quantities in the model, and the propagation of the distributions through the model are all considered. A direct implementation of a Monte Carlo method can be intractable on many computers since the storage requirement of the method can be large compared with the available computer memory. Two memory-efficient alternatives to the direct implementation are proposed. One approach is based on applying updating formulae for calculating means, variances and point-wise histograms. The second approach is based on evaluating the measurement model sequentially in time. A simulated example is used to compare the performance of the direct and alternative procedures.},
tags = {8.42, Dynamik, Unsicherheit},
DOI = {10.1088/0026-1394/49/3/401},
author = {Eichst{\"a}dt, S and Link, A and Harris, P M and Elster, C}
}
@Article { Nevas2012,
title = {Simultaneous correction of bandpass and stray-light effects in array spectroradiometer data},
journal = {Metrologia},
year = {2012},
volume = {49},
number = {2},
pages = {S43--S47},
tags = {8.42},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/49/2/S43},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/49/2/S43},
author = {Nevas, S and W{\"u}bbeler, G and Sperling, A and Elster, C and Teuber, A}
}
@Article { Peruani2012,
title = {Collective Motion and Nonequilibrium Cluster Formation in Colonies of Gliding Bacteria},
journal = {Phys. Rev. Lett.},
year = {2012},
volume = {108},
number = {9},
pages = {098102},
tags = {8.41, SPP, 8.43},
web_url = {http://link.aps.org/doi/10.1103/PhysRevLett.108.098102},
ISSN = {0031-9007},
DOI = {10.1103/PhysRevLett.108.098102},
author = {Peruani, F and Starru{\ss}, J and Jakovljevic, V and S{\o}gaard-Andersen, L and Deutsch, A and B{\"a}r, M}
}
@Article { Klauenberg2012,
title = {The multivariate normal mean - sensitivity of its objective Bayesian estimates},
journal = {Metrologia},
year = {2012},
volume = {49},
number = {3},
pages = {395--400},
tags = {8.42,Bayes,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/49/3/395},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/49/3/395},
author = {Klauenberg, K and Elster, C}
}
@Article { Lober2012,
title = {Front propagation in one-dimensional spatially periodic bistable media},
journal = {Phys. Rev. E},
year = {2012},
volume = {86},
number = {6 Pt 2},
pages = {066210},
abstract = {Front propagation in heterogeneous bistable media is studied using the Schl{{\"o}}gl model as a representative example. Spatially periodic modulations in the parameters of the bistable kinetics are taken into account perturbatively. Depending on the ratio L/l (L is the spatial period of the heterogeneity, l is the front width), appropriate singular perturbation techniques are applied to derive an ordinary differential equation for the position of the front in the presence of the heterogeneities. From this equation, the dependence of the average propagation speed on L/l as well as on the modulation amplitude is calculated. The analytical results obtained predict velocity overshoot, different cases of propagation failure, and the propagation speed for very large spatial periods in quantitative agreement with the results of direct numerical simulations of the underlying reaction-diffusion equation.},
tags = {8.41, exc-media},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/23368027},
ISSN = {1550-2376},
DOI = {10.1103/PhysRevE.86.066210},
author = {L{\"o}ber, J and B{\"a}r, M and Engel, H}
}
@Article { Lira2012,
title = {Analysis of Key Comparisons Incorporating Knowledge About Bias},
journal = {IEEE Transactions on Instrumentation and Measurement},
year = {2012},
volume = {61},
number = {8},
pages = {2079--2084},
abstract = {A method is proposed for analyzing key comparison data. It is based on the assumption that each laboratory participating in the comparison exercise obtains independent and consistent estimates of the measurand and that, in addition, each laboratory provides an estimate of the quantity that collects all systematic effects that the laboratory took into account. The unknown value of the latter quantity, subtracted from its estimate, is defined as the laboratory's bias. The uncertainties associated with the estimates of the measurand and with the vanishing biases' estimates are also assumed to be reported. In this paper, we show that the information provided in this way may be of help for judging the performances of the laboratories in their correction of systematic effects. This is done by developing formulas for the final (consensus) estimates and uncertainties of the measurand and of the biases. Formulas for the final estimates and uncertainties of the pairwise differences between the biases are also developed. An example involving simulated key comparison data makes apparent the benefits of the proposed approach.},
keywords = {Atmospheric measurements,Bayesian methods,Bismuth,Gaussian distribution,Laboratories,Measurement uncertainty,Particle measurements,Systematics,Uncertainty,laboratory bias estimation,measurement errors,measurement uncertainty,performance evaluation,statistical analysis,systematic effect,vanishing bias estimation},
tags = {8.42,KC},
web_url = {http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6189781},
ISSN = {0018-9456},
DOI = {10.1109/TIM.2012.2193690},
author = {Lira, I and Chunovkina, A G and Elster, C and W{\"o}ger, W}
}
@Article { Liebert2012,
title = {Determination of absorption changes from moments of distributions of times of flight of photons: optimization of measurement conditions for a two-layered tissue model},
journal = {Journal of biomedical optics},
year = {2012},
volume = {17},
number = {5},
pages = {057005},
abstract = {Time-resolved near-infrared spectroscopy allows for depth-selective determination of absorption changes in the adult human head that facilitates separation between cerebral and extra-cerebral responses to brain activation. The aim of the present work is to analyze which combinations of moments of measured distributions of times of flight (DTOF) of photons and source-detector separations are optimal for the reconstruction of absorption changes in a two-layered tissue model corresponding to extra- and intra-cerebral compartments. To this end we calculated the standard deviations of the derived absorption changes in both layers by considering photon noise and a linear relation between the absorption changes and the DTOF moments. The results show that the standard deviation of the absorption change in the deeper (superficial) layer increases (decreases) with the thickness of the superficial layer. It is confirmed that for the deeper layer the use of higher moments, in particular the variance of the DTOF, leads to an improvement. For example, when measurements at four different source-detector separations between 8 and 35 mm are available and a realistic thickness of the upper layer of 12 mm is assumed, the inclusion of the change in mean time of flight, in addition to the change in attenuation, leads to a reduction of the standard deviation of the absorption change in the deeper tissue layer by a factor of 2.5. A reduction by another 4{\%} can be achieved by additionally including the change in variance.},
keywords = {Absorption,Biological,Brain,Brain: metabolism,Computer Simulation,Head,Head: physiology,Humans,Light,Models,Near-Infrared,Near-Infrared: methods,Oximetry,Oximetry: methods,Oxygen,Oxygen: metabolism,Photons,Radiation,Reproducibility of Results,Scattering,Sensitivity and Specificity,Spectroscopy},
tags = {8.42},
web_url = {http://biomedicaloptics.spiedigitallibrary.org/article.aspx?articleid=1183164},
publisher = {International Society for Optics and Photonics},
ISSN = {1560-2281},
DOI = {10.1117/1.JBO.17.5.057005},
author = {Liebert, A and Wabnitz, H and Elster, C}
}
@Article { Wensink2012,
title = {Meso-scale turbulence in living fluids},
journal = {Proc. Natl. Acad. Sci. U.S.A.},
year = {2012},
volume = {109},
number = {36},
pages = {14308--13},
abstract = {Turbulence is ubiquitous, from oceanic currents to small-scale biological and quantum systems. Self-sustained turbulent motion in microbial suspensions presents an intriguing example of collective dynamical behavior among the simplest forms of life and is important for fluid mixing and molecular transport on the microscale. The mathematical characterization of turbulence phenomena in active nonequilibrium fluids proves even more difficult than for conventional liquids or gases. It is not known which features of turbulent phases in living matter are universal or system-specific or which generalizations of the Navier-Stokes equations are able to describe them adequately. Here, we combine experiments, particle simulations, and continuum theory to identify the statistical properties of self-sustained meso-scale turbulence in active systems. To study how dimensionality and boundary conditions affect collective bacterial dynamics, we measured energy spectra and structure functions in dense Bacillus subtilis suspensions in quasi-2D and 3D geometries. Our experimental results for the bacterial flow statistics agree well with predictions from a minimal model for self-propelled rods, suggesting that at high concentrations the collective motion of the bacteria is dominated by short-range interactions. To provide a basis for future theoretical studies, we propose a minimal continuum model for incompressible bacterial flow. A detailed numerical analysis of the 2D case shows that this theory can reproduce many of the experimentally observed features of self-sustained active turbulence.},
keywords = {Bacillus subtilis,Bacillus subtilis: physiology,Biological,Biomechanical Phenomena,Computer Simulation,Culture Media,Culture Media: chemistry,Hydrodynamics,Models,Movement,Movement: physiology},
tags = {8.43, ActFluid},
web_url = {http://www.pnas.org/content/109/36/14308},
ISSN = {1091-6490},
DOI = {10.1073/pnas.1202032109},
author = {Wensink, H H and Dunkel, J and Heidenreich, S and Drescher, K and Goldstein, R E and L{\"o}wen, H and Yeomans, J M}
}
@Article { Romanczuk2012,
title = {Active Brownian particles},
journal = {Eur. Phys. J. - Special Topics},
year = {2012},
volume = {202},
number = {1},
pages = {1--162},
tags = {8.41, SSP},
web_url = {http://www.springerlink.com/index/10.1140/epjst/e2012-01529-y},
ISSN = {1951-6355},
DOI = {10.1140/epjst/e2012-01529-y},
author = {Romanczuk, P and B{\"a}r, M and Ebeling, W and Lindner, B and Schimansky-Geier, L}
}
@Article { Starruss2012,
title = {Pattern-formation mechanisms in motility mutants of Myxococcus xanthus},
journal = {Interface focus},
year = {2012},
volume = {2},
number = {6},
pages = {774--85},
abstract = {Formation of spatial patterns of cells is a recurring theme in biology and often depends on regulated cell motility. Motility of the rod-shaped cells of the bacterium Myxococcus xanthus depends on two motility machineries, type IV pili (giving rise to S-motility) and the gliding motility apparatus (giving rise to A-motility). Cell motility is regulated by occasional reversals. Moving M. xanthus cells can organize into spreading colonies or spore-filled fruiting bodies, depending on their nutritional status. To ultimately understand these two pattern-formation processes and the contributions by the two motility machineries, as well as the cell reversal machinery, we analyse spatial self-organization in three M. xanthus strains: (i) a mutant that moves unidirectionally without reversing by the A-motility system only, (ii) a unidirectional mutant that is also equipped with the S-motility system, and (iii) the wild-type that, in addition to the two motility systems, occasionally reverses its direction of movement. The mutant moving by means of the A-engine illustrates that collective motion in the form of large moving clusters can arise in gliding bacteria owing to steric interactions of the rod-shaped cells, without the need of invoking any biochemical signal regulation. The two-engine strain mutant reveals that the same phenomenon emerges when both motility systems are present, and as long as cells exhibit unidirectional motion only. From the study of these two strains, we conclude that unidirectional cell motion induces the formation of large moving clusters at low and intermediate densities, while it results in vortex formation at very high densities. These findings are consistent with what is known from self-propelled rod models, which strongly suggests that the combined effect of self-propulsion and volume exclusion interactions is the pattern-formation mechanism leading to the observed phenomena. On the other hand, we learn that when cells occasionally reverse their moving direction, as observed in the wild-type, cells form small but strongly elongated clusters and self-organize into a mesh-like structure at high enough densities. These results have been obtained from a careful analysis of the cluster statistics of ensembles of cells, and analysed in the light of a coagulation Smoluchowski equation with fragmentation.},
keywords = {,pattern formation},
tags = {8.41,SPP},
web_url = {http://rsfs.royalsocietypublishing.org/content/2/6/774},
ISSN = {2042-8901},
DOI = {10.1098/rsfs.2012.0034},
author = {Starru{\ss}, J and Peruani, F and Jakovljevic, V and S{\o}gaard-Andersen, L and Deutsch, A and B{\"a}r, M}
}
@Article { Wubbeler2012,
title = {Analysis of magnetic field fluctuation thermometry using Bayesian inference},
journal = {Measurement Science and Technology},
year = {2012},
volume = {23},
number = {12},
pages = {125004},
tags = {8.42,Bayes,MFFT,Regression, Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/23/12/125004},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/23/12/125004},
author = {W{\"u}bbeler, G and Schm{\"a}hling, F and Beyer, J and Engert, J and Elster, C}
}
@Article { Toman2012,
title = {Alternative analyses of measurements of the Planck constant},
journal = {Metrologia},
year = {2012},
volume = {49},
number = {4},
pages = {567--571},
tags = {8.42,Bayes,KC},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/49/4/567},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/49/4/567},
author = {Toman, B and Fischer, J and Elster, C}
}
@Article { Bruns2012,
title = {The influence of different vibration exciter systems on high frequency primary calibration of single-ended accelerometers: II},
journal = {Metrologia},
year = {2012},
volume = {49},
number = {1},
pages = {27--31},
keywords = {dynamic calibration, accelerometer, dynamic measurement},
tags = {8.42, Dynamik},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/49/1/005},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/49/1/005},
author = {Bruns, T and Link, A and T{\"a}ubner, A}
}
@Article { Bodermann2012,
title = {Nanometrology at PTB in support of process control of nanoscale features in semiconductor manufacturing},
journal = {International Journal of Nanomanufacturing},
year = {2012},
volume = {8},
number = {1},
abstract = {We report on recent developments at the PTB in the field of dimensional nanometrology with a special focus on instrumentation, measurement and simulation methods, and standards which are used in semiconductor lithography manufacturing processes. Important dimensional measurands to be controlled precisely during the high volume manufacturing processes of nanoscale features (< 32 nm node) are the positions and widths of features on lithographic masks and wafers as well as the relative positioning or overlay of features.},
keywords = {Nanometrology},
tags = {8.41,Scatter-Inv},
author = {Bodermann, B and Scholze, F and Fl{\"u}gge, J and Gro{\ss}, H and Bosse, H}
}
@Article { Bich2012,
title = {Revision of the ''Guide to the Expression of Uncertainty in Measurement''},
journal = {Metrologia},
year = {2012},
volume = {49},
number = {6},
pages = {702--705},
tags = {8.42,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/49/6/702},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/49/6/702},
author = {Bich, W and Cox, M G and Dybkaer, R and Elster, C and Estler, W T and Hibbert, B and Imai, H and Kool, W and Michotte, C and Nielsen, L and Pendrill, L and Sidney, S and van der Veen, A M H and W{\"o}ger, W}
}
@Article { Bar2012,
title = {Synchronization and complex dynamics of oscillators with delayed pulse coupling},
journal = {Angewandte Chemie (International ed. in English)},
year = {2012},
volume = {51},
number = {38},
pages = {9489--90},
tags = {8.41, NonDyn},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/22915494},
ISSN = {1521-3773},
DOI = {10.1002/anie.201205214},
author = {B{\"a}r, M and Sch{\"o}ll, E and Torcini, A}
}
@Article { Henn2012a,
title = {Improved grating reconstruction by determination of line roughness in extreme ultraviolet scatterometry},
journal = {Opt. Lett.},
year = {2012},
volume = {37},
number = {24},
pages = {5229--5231},
keywords = {8.43,Scatter-Inv},
tags = {8.43,Scatter-Inv},
DOI = {10.1364/OL.37.005229},
author = {Henn, M-A and Heidenreich, S and Gro{\ss}, H and Rathsfeld, A and Scholze, F and B{\"a}r, M}
}
@Article { Henn2012,
title = {A maximum likelihood approach to the inverse problem of scatterometry},
journal = {Optics Express},
year = {2012},
volume = {20},
number = {12},
pages = {12771-86},
abstract = {Scatterometry is frequently used as a non-imaging indirect optical method to reconstruct the critical dimensions (CD) of periodic nanostructures. A particular promising direction is EUV scatterometry with wavelengths in the range of 13 - 14 nm. The conventional approach to determine CDs is the minimization of a least squares function (LSQ). In this paper, we introduce an alternative method based on the maximum likelihood estimation (MLE) that determines the statistical error model parameters directly from measurement data. By using simulation data, we show that the MLE method is able to correct the systematic errors present in LSQ results and improves the accuracy of scatterometry. In a second step, the MLE approach is applied to measurement data from both extreme ultraviolet (EUV) and deep ultraviolet (DUV) scatterometry. Using MLE removes the systematic disagreement of EUV with other methods such as scanning electron microscopy and gives consistent results for DUV.},
tags = {8.43,Diffraction gratings,Metrology,Scatter-Inv,Scatterometrie,8.42},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=oe-20-12-12771{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {1094-4087},
DOI = {10.1364/OE.20.012771},
author = {Henn, M-A and Gross, H and Scholze, F and Wurm, M and Elster, C and B{\"a}r, M}
}
@Article { Elster2012c,
title = {On the choice of a noninformative prior for Bayesian inference of discretized normal observations},
journal = {Computational Statistics},
year = {2012},
volume = {27},
number = {2},
pages = {219--235},
tags = {8.42,Bayes,Unsicherheit},
web_url = {http://link.springer.com/10.1007/s00180-011-0251-7},
ISSN = {0943-4062},
DOI = {10.1007/s00180-011-0251-7},
author = {Elster, C and Lira, I}
}
@Article { GrosHHRB2012,
title = {Modeling of line roughness and its impact on the diffraction intensities and the reconstructed critical dimensions in scatterometry},
journal = {Appl. Opt.},
year = {2012},
volume = {51},
number = {30},
pages = {7384--94},
abstract = {We investigate the impact of line-edge and line-width roughness (LER, LWR) on the measured diffraction intensities in angular resolved extreme ultraviolet (EUV) scatterometry for a periodic line-space structure designed for EUV lithography. LER and LWR with typical amplitudes of a few nanometers were previously neglected in the course of the profile reconstruction. The two-dimensional (2D) rigorous numerical simulations of the diffraction process for periodic structures are carried out with the finite element method providing a numerical solution of the 2D Helmholtz equation. To model roughness, multiple calculations are performed for domains with large periods, containing many pairs of line and space with stochastically chosen line and space widths. A systematic decrease of the mean efficiencies for higher diffraction orders along with increasing variances is observed and established for different degrees of roughness. In particular, we obtain simple analytical expressions for the bias in the mean efficiencies and the additional uncertainty contribution stemming from the presence of LER and/or LWR. As a consequence this bias can easily be included into the reconstruction model to provide accurate values for the evaluated profile parameters. We resolve the sensitivity of the reconstruction from this bias by using simulated data with LER/LWR perturbed efficiencies for multiple reconstructions. If the scattering efficiencies are bias-corrected, significant improvements are found in the reconstructed bottom and top widths toward the nominal values.},
keywords = {8.43,Diffraction gratings,Metrology,Scatter-Inv,Scatterometrie},
tags = {8.43,Scatter-Inv},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=ao-51-30-7384{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {1539-4522},
DOI = {10.1364/AO.51.007384},
author = {Gro{\ss}, H and Henn, M-A and Heidenreich, S and Rathsfeld, A and B{\"a}r, M}
}
@Article { Fuser2012,
title = {Optoelectronic time-domain characterization of a 100 GHz sampling oscilloscope},
journal = {Measurement Science and Technology},
year = {2012},
volume = {23},
number = {2},
pages = {025201},
abstract = {We have performed an optoelectronic measurement of the impulse response of an ultrafast sampling oscilloscope with a nominal bandwidth of 100 GHz within a time window of approximately 100 ps. Our experimental technique also considers frequency components above the cut-off frequency of higher-order modes of the 1.0 mm coaxial line, which is shown to be important for the specification of the impulse response of ultrafast sampling oscilloscopes. Additionally, we have measured the reflection coefficient of the sampling head induced by the mismatch of the sampling circuit and the coaxial connector which is larger than 0.5 for certain frequencies. The uncertainty analysis has been done using the Monte Carlo method of Supplement 1 to the ‘Guide to the Expression of Uncertainty in Measurement’ and correlations in the estimated impulse response have been determined. Our measurements extend previous work which deals with the characterization of 70 GHz oscilloscopes and the measurement of 100 GHz oscilloscopes up to the cut-off frequency of higher-order modes.},
keywords = {dynamic measurement, oscilloscope, dynamic calibration, impulse response},
tags = {8.42,Dynamik},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/Fueser_Osci_preprint.pdf},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/23/2/025201},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/23/2/025201},
author = {F{\"u}ser, H and Eichst{\"a}dt, S and Baaske, K and Elster, C and Kuhlmann, K and Judaschke, R and Pierz, K and Bieler, M}
}
@Inbook { Wuebbeler2012c,
title = {Assessment of the GUM S1 Adaptive Monte Carlo Scheme},
year = {2012},
volume = {Advanced Mathematical \& Computational Tools in Metrology IX},
pages = {434},
tags = {8.42, Unsicherheit},
editor = {F. Pavese, M. B{\"a}r, J.M. Limares, C. Perruchet, N.F. Zhang},
publisher = {World Scientific New Jersey},
series = {Series on Advances in Mathematics for Applied Sciences},
edition = {84},
chapter = {54},
author = {W{\"u}bbeler, G and Harris, P M and Cox, M G and Elster, C}
}
@Inbook { Model_2012,
title = {Numerical simulations and turbulent modelling for application in flow metrology},
year = {2012},
volume = {84},
tags = {8.41, Flow},
editor = {F. Pavese, M. B{\"a}r, J.-R. Filtz, A. B. Forbes, L. Pendrill and K. Shirono},
publisher = {World Scientific, New Jersey},
author = {Model, R and Schmelter, S and Lindner, G and B{\"a}r, M}
}
@Inbook { Eichstaedt2012e,
title = {Uncertainty evaluation for continuous-time measurements},
year = {2012},
volume = {Advanced Mathematical \& Computational Tools in Metrology and Testing IX },
pages = {126-135},
keywords = {dynamic measurement, continuous function, stochastic process, uncertainty},
tags = {8.42, Dynamik, Unsicherheit},
editor = {F. Pavese, M. B{\"a}r, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono},
publisher = {World Scientific New Jersey},
series = {Series on Advances in Mathematics for Applied Sciences},
edition = {84},
chapter = {16},
author = {Eichst{\"a}dt, S and Elster, C}
}
@Inbook { Esward2012,
title = {Uncertainty evaluation for traceable dynamic measurement of mechanical quantities: A case study in dynamic pressure calibration},
year = {2012},
volume = {Advanced Mathematical \& Computational Tools in Metrology and Testing IX },
pages = {143-151},
keywords = {dynamic pressure, calibration, dynamic measurement},
tags = {8.42, Dynamik, Unsicherheit},
editor = {F. Pavese, M. B{\"a}r, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono},
publisher = {World Scientific New Jersey},
series = {Series on Advances in Mathematics for Applied Sciences},
edition = {84},
chapter = {19},
author = {Esward, T J and Matthews, C and Downes, S and Knott, A and Eichst{\"a}dt, S and Elster, C}
}
@Inbook { Gross2012,
title = {Stochastic modeling aspects for an improved solution of the inverse problem in scatterometry},
year = {2012},
keywords = {8.41,Scatter-Inv},
tags = {8.41,Scatter-Inv},
editor = {F. Pavese, M. B{\"a}r, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono},
publisher = {World Scientific New Jersey},
booktitle = {Advanced Mathematical \& Computational Tools in Metrology and Testing IX},
author = {Gro{\ss}, H and Henn, M-A and Rathsfeld, A and B{\"a}r, M}
}
@Phdthesis { Eichstaedt_Thesis,
title = {Analysis of Dynamic Measurements - Evaluation of dynamic measurement uncertainty},
year = {2012},
abstract = {Metrology is concerned with the establishment of measurement units and the transfer of measurement standards to industry. International comparability of measurement results requires internationally agreed guidelines for specific measurement tasks and a standardised treatment of measurement uncertain- ties. To this end, the Guide to the Expression of Uncertainty in Measurement (GUM) provides the framework for the evaluation and interpretation of mea- surement uncertainty in metrology. However, it does not address dynamic measurements, which are of growing importance for industry and metrology. Typical examples of dynamic measurements are in-cylinder measurements in the automotive industry (pressure), crash tests (e.g., acceleration and force) or assembly line measurements (e.g., torque and force). A reliable calibra- tion of the measurement systems employed, which can be related to national standards, requires a consistent evaluation of measurement uncertainty for dynamic measurements.The goal of this thesis is to develop a framework for the evaluation of uncer- tainty in dynamic measurements in metrology that are closely related to the treatment of static measurements. The measurement systems considered are those that can be modelled by a linear and time-invariant (LTI) system since such models cover a wide range of metrological applications. The measured values are the values of the system output signal, whereas the values of the quantity of interest serve as the system input signal. Estimation of the in- put signal is considered to be carried out by means of digital filtering in the discrete time domain from which inference of the continuous-time signal is sought.This requires the design of digital filters, an uncertainty evaluation for regu- larised deconvolution and a framework for the definition and propagation of the uncertainty of a continuous function. The design of digital filters for de- convolution is well-established in the signal processing literature. The same holds true for the propagation of variances through LTI systems. However, propagation of variances through uncertain LTI systems for evaluation of uncertainty in the sense of GUM has only recently been considered. The methods developed so far focus on the evaluation of uncertainties and do not address regularisation errors. Moreover, the relation of the discrete-time es- timate to the actual continuous-time measurand has not yet been addressed.We extend the available results for the evaluation of uncertainties to the propagation of associated probability density functions and propose efficient calculation schemes. Moreover, the ill-posed deconvolution problem requires regularisation. We develop a reliable quantitative evaluation of the uncer- tainty contribution due to regularisation assuming a particular type of prior knowledge. We present a framework for the evaluation of uncertainty for con- tinuous measurements, which addresses the definition, assignment and prop- agation of uncertainty. Finally, we develop a technique for the calculation of uncertainty associated with a continuous-time estimate of the measurand from a discrete-time estimate.The proposed techniques provide a complete framework for the consistent and reliable evaluation of uncertainty in the analysis of a dynamic measurement.},
keywords = {dynamic measurement, dynamic uncertainty, digital filter, deconvolution},
tags = {8.42, Dynamik},
url = {fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/842_Dynamik_Diss_Eichstaedt.pdf},
address = {Berlin},
school = {TU Berlin},
type = {PhD Thesis},
author = {Eichst{\"a}dt, S}
}
@Article { be2ba9f3062016,
title = {Fragmentation Is Crucial for the Steady-State Dynamics of Actin Filaments},
journal = {Biophysical Journal},
year = {2011},
month = {1},
day = {1},
volume = {101},
number = {4},
pages = {803--808},
keywords = {8.43},
tags = {8.43},
publisher = {Elsevier},
DOI = {10.1016\%2Fj.bpj.2011.07.009},
author = {Schmoller, K.M and Niedermayer, T and Zensen, C and Wurm, C and Bausch, A.R}
}
@Article { 8541b53b022016,
title = {Individual Actin Filaments in a Microfluidic Flow Reveal the Mechanism of \{ATP\} Hydrolysis and Give Insight Into the Properties of Profilin},
journal = {PLoS Biology},
year = {2011},
month = {1},
day = {1},
volume = {9},
number = {9},
keywords = {8.43},
tags = {8.43},
misc = {equal contributed},
publisher = {Public Library of Science},
DOI = {10.1371/journal.pbio.1001161},
author = {Jegou, A and Niedermayer, T and Orban, J and Lipowsky, R and Carlier, M.F and Romet-Lemonne, G}
}
@Article { Romero1340,
title = {Frequency analysis of atrial fibrillation surface and intracardiac electrograms during pulmonary vein isolation},
journal = {Europace},
year = {2011},
volume = {13},
number = {9},
pages = {1340--1345},
abstract = {Aims Frequency analysis of atrial electrograms from patients diagnosed with persistent atrial fibrillation (AF) appears to be crucial in its clinical diagnosis. This work explores the fibrillatory frequency properties of both surface and intracardiac electrograms before and after pulmonary vein isolation (PVI) using three time{\textbackslashtextendash}frequency techniques. Methods and results Surface electrocardiograms (ECGs) of 21 patients diagnosed with persistent AF undergoing PVI were recorded. Three methods, Fourier, ensemble average, and wavelet analysis, were used to identify the dominant frequency (DF) in surface ECGs. Dominant frequency was also computed in electrograms recorded within the coronary sinus (CS). Dominant frequency measured within the CS was best estimated in surface lead V1 using both Fourier (relative error: 10.94 {\textbackslashtextpm} 10.37\%, correlation: 0.58) and wavelet analysis (relative error: 10.97 {\textbackslashtextpm} 11.08\%, correlation: 0.53). Ensemble average gave highest relative error (21.29 {\textbackslashtextpm} 18.07\%) and lowest correlation (0.10). Dominant frequency decreased after right PVI. This decrease was significant (P\< 0.05) in most of the patients (13, 14, and 7 out of 14 when Fourier, wavelets, and ensemble average was used; 14 in CS). Further isolation of the left pulmonary veins (PVs) yielded a significant (P\< 0.05) decrease in only a few of them (3, 4, and 2 out of 14 when Fourier, wavelets, and ensemble average was used; 4 in CS). Conclusion Wavelet and Fourier analysis are good tools for estimating the atrial fibrillatory rate from surface ECG. A drop was observed in the DF value after isolation of the right PV. However, after left PVI this decrease was smaller.},
tags = {8.42},
publisher = {The Oxford University Press},
ISSN = {1099-5129},
DOI = {10.1093/europace/eur104},
author = {Romero, I and Fleck, E and Kriatselis, C}
}
@Article { Peruani2011,
title = {Polar vs. apolar alignment in systems of polar self-propelled particles},
journal = {J. Phys.: Conf. Ser.},
year = {2011},
volume = {297},
number = {1},
pages = {012014},
tags = {8.41, SPP},
web_url = {http://iopscience.iop.org/article/10.1088/1742-6596/297/1/012014},
publisher = {IOP Publishing},
language = {en},
ISSN = {1742-6596},
DOI = {10.1088/1742-6596/297/1/012014},
author = {Peruani, F and Ginelli, F and B{\"a}r, M and Chat{\'e}, H}
}
@Article { Koch2011,
title = {A reference dataset for verifying numerical electrophysiological heart models},
journal = {Biomedical engineering online},
year = {2011},
volume = {10},
number = {1},
pages = {11},
abstract = {BACKGROUND: The evaluation, verification and comparison of different numerical heart models are difficult without a commonly available database that could be utilized as a reference. Our aim was to compile an exemplary dataset. METHODS: The following methods were employed: Magnetic Resonance Imaging (MRI) of heart and torso, Body Surface Potential Maps (BSPM) and MagnetoCardioGraphy (MCG) maps. The latter were recorded simultaneously from the same individuals a few hours after the MRI sessions. RESULTS: A training dataset is made publicly available; datasets for blind testing will remain undisclosed. CONCLUSIONS: While the MRI data may provide a common input that can be applied to different numerical heart models, the verification and comparison of different models can be performed by comparing the measured biosignals with forward calculated signals from the models.},
keywords = {Adult,Body Surface Area,Cardiovascular,Databases,Electrophysiological Processes,Factual,Heart,Heart: physiology,Humans,Magnetic Resonance Imaging,Magnetics,Magnetocardiography,Male,Models,Reference Standards,Reproducibility of Results},
tags = {8.42},
web_url = {http://www.biomedical-engineering-online.com/content/10/1/11},
ISSN = {1475-925X},
DOI = {10.1186/1475-925X-10-11},
author = {Koch, H and Bousseljot, R-D and Kosch, O and Jahnke, C and Paetsch, I and Fleck, E and Schnackenburg, B}
}
@Article { Klauenberg2011,
title = {Bayesian analysis of an international ELISA comparability study},
journal = {Clinical chemistry and laboratory medicine : CCLM / FESCC},
year = {2011},
volume = {49},
number = {9},
pages = {1459--68},
abstract = {BACKGROUND: Immunoassays are biochemical tests applied to measure even very small amounts of substance using the highly specific binding between an antibody and its antigen. They have a wide range of applications. The measurement however, might be associated with substantial uncertainty; this can have significant consequences for any diagnosis, or clinical decision. An international comparability study was thus performed to assess the sources of uncertainty involved in the estimation of a protein cytokine concentration using a fluorescent ELISA. METHODS: In contrast to the original publication for this international comparability study, we reanalyse the data using Bayesian inference. This provides a statistically coherent approach to estimate ELISA concentrations and their associated uncertainties. RESULTS: The Bayesian uncertainties of individual ELISAs and laboratory estimates are considerably larger than previously reported uncertainties. The average concentrations estimated here differ from the ones estimated by each study participant. In general, this leads to different conclusions about the study. In particular, the inter- and intra-laboratory consistency is increased, and repeatability problems occur for fewer laboratories. CONCLUSIONS: Decisions which are based on plausible ranges of measurements (such as credible intervals), are generally superior to those solely based on point estimates (such as the mean). Reliable uncertainties are thus vital, and not only in metrology. In this paper, a general method is developed to derive concentration estimates and valid uncertainties for ELISAs. Guidance on applying this Bayesian method is provided and the importance of reliable uncertainties associated with ELISAs is underlined. The applicability and virtues of the presented method are demonstrated in the context of an international comparability study.},
keywords = {Bayes Theorem,Calibration,ELISA,Enzyme-Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assay: standards,Internationality,Reference Standards,Regression,Uncertainty},
tags = {8.42, ELISA},
web_url = {http://www.degruyter.com/view/j/cclm.2011.49.issue-9/cclm.2011.648/cclm.2011.648.xml},
ISSN = {1437-4331},
DOI = {10.1515/CCLM.2011.648},
author = {Klauenberg, K and Ebert, B and Voigt, J and Walzel, M and Noble, J E and Knight, A E and Elster, C}
}
@Article { Klauenberg2011a,
title = {Bayesian Glaciological Modelling to quantify uncertainties in ice core chronologies},
journal = {Quaternary Science Reviews},
year = {2011},
volume = {30},
number = {21-22},
pages = {2961--2975},
abstract = {Valuable information about the environment and climate of the past is preserved in ice cores which are drilled through ice sheets in polar and alpine regions. A pivotal part of interpreting the information held within the cores is to build ice core chronologies i.e. to relate time to depth. Existing dating methods can be categorised as follows: (1) layer counting using the seasonality in signals, (2) glaciological modelling describing processes such as snow accumulation and plastic deformation of ice, (3) comparison with other dated records, or (4) any combination of these. Conventionally, implementation of these approaches does not use statistical methods. In order to quantify dating uncertainties, in this paper we develop the approach of category (2) further. First, the sources of uncertainty involved in glaciological models are formalised. Feeding these into a statistical framework, that we call Bayesian Glaciological Modelling (BGM), allows us to demonstrate the effect that uncertainty in the glaciological model has on the chronology. BGM may also include additional information to constrain the resulting chronology, for example from layer counting or other dated records such as traces from volcanic eruptions. Our case study involves applying BGM to date an Antarctic ice core (a Dyer plateau core). Working through this example allows us to emphasise the importance of properly assessing uncertain elements in order to arrive at accurate chronologies, including valid dating uncertainties. Valid dating uncertainties, in turn, facilitate the interpretation of environmental and climatic conditions at the location of the ice core as well as the comparison and development of ice core chronologies from different locations.},
keywords = {(Dating) uncertainty,(Hierarchical) linear modelling,Accumulation model,Automatic weather station,Bayes,Bayesian approach,Dyer,Glaciological modelling,Ice core chronology,Layer counting,Likelihood,Posterior distribution,Prior information,Volcanic eruptions},
tags = {8.42},
web_url = {http://www.sciencedirect.com/science/article/pii/S0277379111000801},
ISSN = {02773791},
DOI = {10.1016/j.quascirev.2011.03.008},
author = {Klauenberg, K and Blackwell, P G and Buck, C E and Mulvaney, R and R{\"o}thlisberger, R and Wolff, E W}
}
@Article { Kupitz2011,
title = {Surfactant-induced gradients in the three-dimensional Belousov-Zhabotinsky reaction},
journal = {Phys. Review. E},
year = {2011},
volume = {84},
number = {5 Pt 2},
pages = {056210},
abstract = {Scroll waves are prominent patterns formed in three-dimensional excitable media, and they are frequently considered highly relevant for some types of cardiac arrhythmias. Experimentally, scroll wave dynamics is often studied by optical tomography in the Belousov-Zhabotinsky reaction, which produces CO(2) as an undesired product. Addition of small concentrations of a surfactant to the reaction medium is a popular method to suppress or retard CO(2) bubble formation. We show that in closed reactors even these low concentrations of surfactants are sufficient to generate vertical gradients of excitability which are due to gradients in CO(2) concentration. In reactors open to the atmosphere such gradients can be avoided. The gradients induce a twist on vertically oriented scroll waves, while a twist is absent in scroll waves in a gradient-free medium. The effects of the CO(2) gradients are reproduced by a numerical study, where we extend the Oregonator model to account for the production of CO(2) and for its advection against the direction of gravity. The numerical simulations confirm the role of solubilized CO(2) as the source of the vertical gradient of excitability in reactors closed to the atmosphere.},
keywords = {Algorithms,Animals,Arrhythmias,Biophysics,Biophysics: methods,Bioreactors,Carbon Dioxide,Carbon Dioxide: chemistry,Cardiac,Cardiac: physiopathology,Culture Media,Gases,Humans,Micelles,Models,Sodium Dodecyl Sulfate,Sodium Dodecyl Sulfate: chemistry,Statistical,Surface-Active Agents,Surface-Active Agents: chemistry,Theoretical,Time Factors},
tags = {8.41, RD},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/22181487},
ISSN = {1550-2376},
DOI = {10.1103/PhysRevE.84.056210},
author = {Kupitz, D and Alonso, S. and B{\"a}r, M and Hauser, M J B}
}
@Article { Wiegmann2011,
title = {Absolute Profilmessung optischer Oberfl{\"a}chen mit Mehrfachsensorsystemen},
journal = {tm - Technisches Messen},
year = {2011},
volume = {78},
number = {4},
pages = {184--189},
tags = {8.42,Form,SimOpt},
web_url = {http://www.degruyter.com/view/j/teme.2011.78.issue-4/teme.2011.0102/teme.2011.0102.xml},
ISSN = {0171-8096},
DOI = {10.1524/teme.2011.0102},
author = {Wiegmann, A and Schulz, M and Elster, C}
}
@Article { Wiegmann2011a,
title = {Accuracy evaluation for sub-aperture interferometry measurements of a synchrotron mirror using virtual experiments},
journal = {Precision Engineering},
year = {2011},
volume = {35},
number = {2},
pages = {183--190},
abstract = {We present a virtual experiment for the accuracy assessment of the sub-aperture interferometric measurement of a synchrotron mirror involving several thousand sub-aperture topographies. The virtual experiment simulates the measurement process and accounts for the influence of positioning device errors, interferometer errors, non-perfect calibration of machine geometry as well as errors in the interferometer reference. Two principles are considered for reconstructing the form of a test specimen from the conducted sub-aperture topographies, a stitching procedure and a direct measurement method. The virtual experiments are applied to the task of absolute form measurement (including its radius of curvature) of a synchrotron mirror with a length of 30cm, a width of 4cm, a maximum curvature of about 44mm{\^a}ˆ’1 and a peak-to-valley of 5mm. As a result, reconstruction accuracies can be expected to be in the range of 100nm when the stitching method is applied, which outperforms the direct measurement method by a factor of about 3.},
keywords = {Interferometry,Simulation,Stitching,Virtual experiment,virtual experiment},
tags = {8.42,Form,SimOpt},
web_url = {http://www.sciencedirect.com/science/article/pii/S014163591000125X},
ISSN = {01416359},
DOI = {10.1016/j.precisioneng.2010.08.007},
author = {Wiegmann, A and Stavridis, M and Walzel, M and Siewert, F and Zeschke, T and Schulz, M and Elster, C}
}
@Article { Wubbeler2011,
title = {Comparison and assessment of procedures for calculating the R(12) line strength of the \(\nu\)1 + 2 \(\nu\)2 + \(\nu\)3 band of CO2},
journal = {The Journal of Chemical Physics},
year = {2011},
volume = {135},
number = {20},
pages = {204304},
abstract = {Recently, results for the CO(2) R(12) line strength parameter have been reported, which differ significantly and are inconsistent with respect to quoted uncertainties. We investigate to what extent this inconsistency might be caused by the chosen data analysis methods. To this end, we assess and compare a parametric fitting procedure and a non-parametric approach. We apply the methods to simulated and measured line spectra, and we specify the conditions required for the safe application of the two procedures. For our present data, the corresponding conditions are satisfied for both methods, and consistent results are obtained. However, the simulations reveal that the fitting procedure can show shortcomings when the uncertainty in the wavenumber is large.},
tags = {8.42},
web_url = {http://scitation.aip.org/content/aip/journal/jcp/135/20/10.1063/1.3662134},
publisher = {AIP Publishing},
ISBN = {doi:10.1063/1.3662134},
ISSN = {1089-7690},
DOI = {10.1063/1.3662134},
author = {W{\"u}bbeler, G and Padilla Viquez, G J and Jousten, K and Werhahn, O and Elster, C}
}
@Article { Bodnar2011,
title = {On the application of Supplement 1 to the GUM to non-linear problems},
journal = {Metrologia},
year = {2011},
volume = {48},
number = {5},
pages = {333--342},
tags = {8.42,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/48/5/014},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/48/5/014},
author = {Bodnar, O and W{\"u}bbeler, G and Elster, C}
}
@Article { Echebarria2011,
title = {Supernormal conduction in cardiac tissue promotes concordant alternans and action potential bunching},
journal = {Phys. Rev. E},
year = {2011},
volume = {83},
number = {4 Pt 1},
pages = {040902},
abstract = {Supernormal conduction (SNC) in excitable cardiac tissue refers to an increase of pulse (or action potential) velocity with decreasing distance to the preceding pulse. Here we employ a simple ionic model to study the effect of SNC on the propagation of action potentials (APs) and the phenomenology of alternans in excitable cardiac tissue. We use bifurcation analysis and simulations to study attraction between propagating APs caused by SNC that leads to AP pairs and bunching. It is shown that SNC stabilizes concordant alternans in arbitrarily long paced one-dimensional cables. As a consequence, spiral waves in two-dimensional tissue simulations exhibit straight nodal lines for SNC in contrast to spiraling ones in the case of normal conduction.},
keywords = {Action Potentials,Action Potentials: physiology,Animals,Biological Clocks,Biological Clocks: physiology,Cardiovascular,Computer Simulation,Heart Conduction System,Heart Conduction System: physiology,Humans,Models},
tags = {8.41, Herz},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/21599107},
ISSN = {1550-2376},
DOI = {10.1103/PhysRevE.83.040902},
author = {Echebarria, B and R{\"o}der, G and Engel, H and Davidsen, J and B{\"a}r, M}
}
@Article { Alonso2011a,
title = {Complex wave patterns in an effective reaction-diffusion model for chemical reactions in microemulsions},
journal = {J. Chem. Phys.},
year = {2011},
volume = {134},
number = {9},
pages = {094117},
abstract = {An effective medium theory is employed to derive a simple qualitative model of a pattern forming chemical reaction in a microemulsion. This spatially heterogeneous system is composed of water nanodroplets randomly distributed in oil. While some steps of the reaction are performed only inside the droplets, the transport through the extended medium occurs by diffusion of intermediate chemical reactants as well as by collisions of the droplets. We start to model the system with heterogeneous reaction-diffusion equations and then derive an equivalent effective spatially homogeneous reaction-diffusion model by using earlier results on homogenization in heterogeneous reaction-diffusion systems [S.Alonso, M.Ba{\`I}ˆr, and R.Kapral, J. Chem. Phys. 134, 214102 (2009)]. We study the linear stability of the spatially homogeneous state in the resulting effective model and obtain a phase diagram of pattern formation, that is qualitatively similar to earlier experimental results for the Belousov-Zhabotinsky reaction in an aerosol OT (AOT)-water-in-oil microemulsion [V.K.Vanag and I.R.Epstein, Phys. Rev. Lett. 87, 228301 (2001)]. Moreover, we reproduce many patterns that have been observed in experiments with the Belousov-Zhabotinsky reaction in an AOT oil-in-water microemulsion by direct numerical simulations.},
keywords = {Aerosols,Aerosols: chemistry,Chemical,Diffusion,Emulsions,Emulsions: chemistry,Models,Oils,Oils: chemistry,Water,Water: chemistry},
tags = {8.41, RD},
web_url = {http://scitation.aip.org/content/aip/journal/jcp/134/9/10.1063/1.3559154},
publisher = {AIP Publishing},
ISSN = {1089-7690},
DOI = {10.1063/1.3559154},
author = {Alonso, S. and John, K and B{\"a}r, M}
}
@Article { Alonso2011,
title = {Oscillations in the lateral pressure of lipid monolayers induced by nonlinear chemical dynamics of the second messengers MARCKS and protein kinase C},
journal = {Biophys. J.},
year = {2011},
volume = {100},
number = {4},
pages = {939--47},
abstract = {The binding of the MARCKS peptide to the lipid monolayer containing PIP(2) increases the lateral pressure of the monolayer. The unbinding dynamics modulated by protein kinase C leads to oscillations in lateral pressure of lipid monolayers. These periodic dynamics can be attributed to changes in the crystalline lipid domain size. We have developed a mathematical model to explain these observations based on the changes in the physical structure of the monolayer by the translocation of MARCKS peptide. The model indicates that changes in lipid domain size drives these oscillations. The model is extended to an open system that sustains chemical oscillations.},
keywords = {Biological,Biological Transport,Computer Simulation,Fluorescence,Intracellular Signaling Peptides and Proteins,Intracellular Signaling Peptides and Proteins: met,Lipids,Lipids: chemistry,Membrane Proteins,Membrane Proteins: metabolism,Microscopy,Models,Nonlinear Dynamics,Phosphorylation,Pressure,Protein Kinase C,Protein Kinase C: metabolism,Second Messenger Systems,Time Factors},
tags = {8.41,membrane},
web_url = {http://www.sciencedirect.com/science/article/pii/S0006349510052197},
ISSN = {1542-0086},
DOI = {10.1016/j.bpj.2010.12.3702},
author = {Alonso, S. and Dietrich, U and H{\"a}ndel, C and K{\"a}s, J A and B{\"a}r, M}
}
@Article { Alonso2011c,
title = {Effects of reduced discrete coupling on filament tension in excitable media},
journal = {Chaos},
year = {2011},
volume = {21},
number = {1},
pages = {013118},
abstract = {Wave propagation in the heart has a discrete nature, because it is mediated by discrete intercellular connections via gap junctions. Although effects of discreteness on wave propagation have been studied for planar traveling waves and vortexes (spiral waves) in two dimensions, its possible effects on vortexes (scroll waves) in three dimensions are not yet explored. In this article, we study the effect of discrete cell coupling on the filament dynamics in a generic model of an excitable medium. We find that reduced cell coupling decreases the line tension of scroll wave filaments and may induce negative filament tension instability in three-dimensional excitable lattices.},
tags = {8.41 exc-media},
web_url = {http://scitation.aip.org/content/aip/journal/chaos/21/1/10.1063/1.3551500},
publisher = {AIP Publishing},
ISSN = {1089-7682},
DOI = {10.1063/1.3551500},
author = {Alonso, S. and B{\"a}r, M and Panfilov, AlV}
}
@Article { Elster2011a,
title = {Bayesian uncertainty analysis for a regression model versus application of GUM Supplement 1 to the least-squares estimate},
journal = {Metrologia},
year = {2011},
volume = {48},
number = {5},
pages = {233--240},
tags = {8.42, Regression, Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/48/5/001},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/48/5/001},
author = {Elster, C and Toman, B}
}
@Article { Forster2011,
title = {Untersuchungen zur Explosionsgefahr beim Umschlag von Kerosin Jet A-1},
journal = {Technische Sicherheit},
year = {2011},
volume = {1},
pages = {18--27},
tags = {8.41, Flow},
author = {F{\"o}rster, H and G{\"u}nther, W and Lindner, G and Model, R}
}
@Article { Fruhner_CC2010,
title = {Modelling the influence of cardiac motion on electrical excitation and the magnetocardiogram},
journal = {Comp. Cardiology},
year = {2010},
volume = {37},
pages = {867},
tags = {8.41, Herz},
author = {Fruhner, S and Engel, H and B{\"a}r, M}
}
@Article { Peruani2011a,
title = {Cluster dynamics and cluster size distributions in systems of self-propelled particles},
journal = {Eur. Phys. J-Special Topics},
year = {2010},
volume = {191},
number = {1},
pages = {173--185},
tags = {8.41, SSP},
web_url = {http://www.springerlink.com/index/10.1140/epjst/e2010-01349-1},
ISSN = {1951-6355},
DOI = {10.1140/epjst/e2010-01349-1},
author = {Peruani, F and Schimansky-Geier, L and B{\"a}r, M}
}
@Article { Kohl2010,
title = {Shifted factor analysis for the separation of evoked dependent MEG signals},
journal = {Physics in medicine and biology},
year = {2010},
volume = {55},
number = {15},
pages = {4219--30},
abstract = {Decomposition of evoked magnetoencephalography (MEG) data into their underlying neuronal signals is an important step in the interpretation of these measurements. Often, independent component analysis (ICA) is employed for this purpose. However, ICA can fail as for evoked MEG data the neuronal signals may not be statistically independent. We therefore consider an alternative approach based on the recently proposed shifted factor analysis model, which does not assume statistical independence of the neuronal signals. We suggest the application of this model in the time domain and present an estimation procedure based on a Taylor series expansion. We show in terms of synthetic evoked MEG data that the proposed procedure can successfully separate evoked dependent neuronal signals while standard ICA fails. Latency estimation of neuronal signals is an inherent part of the proposed procedure and we demonstrate that resulting latency estimates are superior to those obtained by a maximum likelihood method.},
keywords = {Evoked Potentials,Humans,Magnetoencephalography,Magnetoencephalography: methods,Models, Statistical,Neurons,Neurons: cytology,SingleTrial},
tags = {8.42, Gehirn, SingleTrial},
web_url = {http://iopscience.iop.org/article/10.1088/0031-9155/55/15/002},
publisher = {IOP Publishing},
language = {en},
ISSN = {1361-6560},
DOI = {10.1088/0031-9155/55/15/002},
author = {Kohl, F and W{\"u}bbeler, G and Kolossa, D and B{\"a}r, M and Orglmeister, R and Elster, C}
}
@Article { Leistner2010,
title = {Magnetoencephalography discriminates modality-specific infraslow signals less than 0.1 Hz},
journal = {NeuroReport},
year = {2010},
volume = {21},
number = {3},
pages = {196--200},
tags = {8.42, Gehirn},
author = {Leistner, S and Sander, T and W{\"u}bbeler, G and Link, A and Elster, C and Curio, G and Trahms, L and Mackert, B M}
}
@Article { Wiegmann2010,
title = {Improving the lateral resolution of a multi-sensor profile measurement method by non-equidistant sensor spacing},
journal = {Optics express},
year = {2010},
volume = {18},
number = {15},
pages = {15807--19},
abstract = {We present a method to enhance the achievable lateral resolution of a multi-sensor scanning profile measurement method. The relationship between the profile measurement method considered and established shearing techniques is illustrated. Simulation and measurement results show that non-equidistant sensor spacing can improve the lateral resolution significantly.},
keywords = {Image recognition,Instrumentation,Interferometry,Metrology,Surface measurements,algorithms and filters,and metrology,figure,measurement},
tags = {8.42, Form, SimOpt},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=oe-18-15-15807{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {1094-4087},
DOI = {10.1364/OE.18.015807},
author = {Wiegmann, A and Schulz, M and Elster, C}
}
@Article { Schulz2010,
title = {Concept, design and capability analysis of the new Deflectometric Flatness Reference at PTB},
journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
year = {2010},
volume = {616},
number = {2-3},
pages = {134--139},
abstract = {At PTB, a new setup for the highly accurate topography measurement of nearly flat optical surfaces is now under construction. The so-called Deflectometric Flatness Reference (DFR) is designed to measure in the direct deflectometric mode by applying an autocollimator and a scanning pentaprism, and in the difference deflectometric mode corresponding to the Extended Shear Angle Difference (ESAD) principle invented by PTB. With the new DFR instrument, horizontally as well as vertically orientated specimens with dimensions of up to 1m and a mass of up to 120kg will be measurable. The design of the new instrument is supported by employing a comprehensive simulation environment developed for dimensional measuring machines. The mechanical and optical concept is illustrated together with the current design of the DFR setup. Results from the simulations are presented to derive requirements for tolerated mechanical stage deviations and alignment accuracies.},
keywords = {ESAD,Flatness measurement,Nanometrology,Simulation},
tags = {8.42,Deflectometry,Form,SimOpt},
web_url = {http://www.sciencedirect.com/science/article/pii/S0168900209020592},
ISSN = {01689002},
DOI = {10.1016/j.nima.2009.10.108},
author = {Schulz, M and Ehret, G and Stavridis, M and Elster, C}
}
@Article { Sander2010,
title = {Recent advances in modeling and analysis of bioelectric and biomagnetic sources},
journal = {Biomedizinische Technik. Biomedical engineering},
year = {2010},
volume = {55},
number = {2},
pages = {65--76},
abstract = {Determining the centers of electrical activity in the human body and the connectivity between different centers of activity in the brain is an active area of research. To understand brain function and the nature of cardiovascular diseases requires sophisticated methods applicable to non-invasively measured bioelectric and biomagnetic data. As it is difficult to solve for all unknown parameters at once, several strains of data analysis have been developed, each trying to solve a different part of the problem and each requiring a different set of assumptions. Current trends and results from major topics of electro- and magnetoencephalographic data analysis are presented here together with the aim of stimulating research into the unification of the different approaches. The following topics are discussed: source reconstruction using detailed finite element modeling to locate sources deep in the brain; connectivity analysis for the quantification of strength and direction of information flow between activity centers, preferably incorporating an inverse solution; the conflict between the statistical independence assumption of sources and a possible connectivity; the verification and validation of results derived from non-invasively measured data through animal studies and phantom measurements. This list already indicates the benefits of a unified view.},
keywords = {Action Potentials,Action Potentials: physiology,Animals,Brain,Brain Mapping,Brain Mapping: methods,Brain Mapping: trends,Brain: physiology,Computer Simulation,Electroencephalography,Electroencephalography: methods,Electroencephalography: trends,Electromagnetic Fields,Humans,Models,Neurological,Radiometry,Radiometry: methods,Radiometry: trends,SingleTrial},
tags = {8.42, Gehirn},
web_url = {http://www.degruyter.com/view/j/bmte.2010.55.issue-2/bmt.2010.027/bmt.2010.027.xml},
ISSN = {1862-278X},
DOI = {10.1515/BMT.2010.027},
author = {Sander, T H and Kn{\"o}sche, T R and Schl{\"o}gl, A and Kohl, F and Wolters, C H and Haueisen, J and Trahms, L}
}
@Article { Radszuweit2011,
title = {A model for oscillations and pattern formation in protoplasmic droplets of Physarum polycephalum},
journal = {Eur. Phys. J. - Special Topics},
year = {2010},
volume = {191},
number = {1},
pages = {159--172},
keywords = {8.41,pattern formation},
tags = {8.41, ActMatter, ActFluid},
web_url = {http://www.springerlink.com/index/10.1140/epjst/e2010-01348-2},
ISSN = {1951-6355},
DOI = {10.1140/epjst/e2010-01348-2},
author = {Radszuweit, M and Engel, H and B{\"a}r, M}
}
@Article { Wubbeler2010,
title = {A two-stage procedure for determining the number of trials in the application of a Monte Carlo method for uncertainty evaluation},
journal = {Metrologia},
year = {2010},
volume = {47},
number = {3},
pages = {317--324},
tags = {8.42,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/47/3/023},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/47/3/023},
author = {W{\"u}bbeler, G and Harris, P M and Cox, M G and Elster, C}
}
@Article { Eichstadt2010i,
title = {Dynamic uncertainty for compensated second-order systems},
journal = {Sensors},
year = {2010},
volume = {10},
number = {8},
pages = {7621-31},
abstract = {The compensation of LTI systems and the evaluation of the according uncertainty is of growing interest in metrology. Uncertainty evaluation in metrology ought to follow specific guidelines, and recently two corresponding uncertainty evaluation schemes have been proposed for FIR and IIR filtering. We employ these schemes to compare an FIR and an IIR approach for compensating a second-order LTI system which has relevance in metrology. Our results suggest that the FIR approach is superior in the sense that it yields significantly smaller uncertainties when real-time evaluation of uncertainties is desired.},
keywords = {dynamic model, digital filter, deconvolution, dynamic measurement},
tags = {8.42, Dynamik},
web_url = {http://www.mdpi.com/1424-8220/10/8/7621/htm},
publisher = {Molecular Diversity Preservation International},
language = {en},
DOI = {10.3390/s100807621},
author = {Eichst{\"a}dt, S and Link, A and Elster, C}
}
@Article { Eichstadt2010k,
title = {On-line dynamic error compensation of accelerometers by uncertainty-optimal filtering},
journal = {Measurement},
year = {2010},
volume = {43},
number = {5},
pages = {708-713},
abstract = {The output signal of an accelerometer typically contains dynamic errors when a broadband acceleration is applied. In order to determine the applied acceleration, post-processing of the accelerometer{\^a}{\euro}™s output signal is required. To this end, we propose the application of a digital FIR filter. We evaluate the uncertainty associated with the filtered output signal and give explicit formulae which allow for on-line calculation. In this way, estimation of the applied acceleration and the calculation of associated uncertainties may be carried out during the measurement. The resulting uncertainties can strongly depend on the design of the applied filter and we describe a simple method to construct an uncertainty-optimal filter. The benefit of the proposed procedures is illustrated by means of simulated measurements.},
keywords = {Accelerometer,Digital filter,Dynamic measurements,Dynamik,Uncertainty},
tags = {8.42, Dynamik, Unsicherheit},
web_url = {http://www.sciencedirect.com/science/article/pii/S0263224110000023},
DOI = {10.1016/j.measurement.2009.12.028},
author = {Eichst{\"a}dt, S and Link, A and Bruns, T and Elster, C}
}
@Article { Eichstadt2010j,
title = {Deconvolution filters for the analysis of dynamic measurement processes: a tutorial},
journal = {Metrologia},
year = {2010},
volume = {47},
number = {5},
pages = {522-533},
keywords = {deconvolution, digital filter, dynamic measurement},
tags = {8.42, Dynamik},
publisher = {IOP Publishing},
language = {en},
DOI = {10.1088/0026-1394/47/5/003},
author = {Eichst{\"a}dt, S and Elster, C and Esward, T J and Hessling, J P}
}
@Article { Alonso2010a,
title = {Wave propagation in heterogeneous bistable and excitable media},
journal = {Eur. Phys. J. - Special Topics},
year = {2010},
volume = {187},
number = {1},
pages = {31--40},
tags = {8.41, exc-Media},
web_url = {http://www.springerlink.com/index/10.1140/epjst/e2010-01268-1},
ISSN = {1951-6355},
DOI = {10.1140/epjst/e2010-01268-1},
author = {Alonso, S and L{\"o}ber, J and B{\"a}r, M and Engel, H}
}
@Article { Alonso2011b,
title = {Self-organization processes at active interfaces},
journal = {The European Physical Journal Special Topics},
year = {2010},
volume = {191},
number = {1},
pages = {131--145},
tags = {8.41, SO},
web_url = {http://www.springerlink.com/index/10.1140/epjst/e2010-01346-4},
ISSN = {1951-6355},
DOI = {10.1140/epjst/e2010-01346-4},
author = {Alonso, S and Chen, H-Y and B{\"a}r, M and Mikhailov, A S}
}
@Article { Alonso2010,
title = {Phase separation and bistability in a three-dimensional model for protein domain formation at biomembranes},
journal = {Phys. Biol.},
year = {2010},
volume = {7},
number = {4},
pages = {046012},
abstract = {Proteins in living cells interact with membranes. They may bind to or unbind from the membrane to the cytosol depending on the lipid composition of the membrane and their interaction with cytosolic enzymes. Moreover, proteins can accumulate at the membrane and assemble in spatial domains. Here, a simple model of protein cycling at biomembranes is studied, when the total number of proteins is conserved. Specifically, we consider the spatio-temporal dynamics of MARCKS proteins and their interactions with enzymes facilitating translocation from and rebinding to the membrane. The model exhibits two qualitatively different mechanisms of protein domain formation: phase separation related to a long-wave instability of a membrane state with homogeneous protein coverage and stable coexistence of two states with different homogeneous protein coverage in bistable media. We evaluate the impact of the cytosolic volume on the occurrence of protein pattern formation by simulations in a three-dimensional model. We show that the explicit treatment of the volume in the model leads to an effective rescaling of the reaction rates. For a simplified model of protein cycling, we can derive analytical expressions for the rescaling coefficients and verify them by direct simulations with the complete three-dimensional model.},
keywords = {Cell Membrane,Cell Membrane: chemistry,Cytosol,Cytosol: chemistry,Diffusion,Membrane Lipids,Membrane Lipids: chemistry,Membrane Proteins,Membrane Proteins: chemistry,Models,Molecular},
tags = {8.41,Membrane},
web_url = {http://iopscience.iop.org/article/10.1088/1478-3975/7/4/046012},
publisher = {IOP Publishing},
ISBN = {doi:10.1088/1478-3975/7/4/046012},
ISSN = {1478-3975},
DOI = {10.1088/1478-3975/7/4/046012},
author = {Alonso, S and B{\"a}r, M}
}
@Article { Gross2010,
title = {Investigations on a robust profile model for the reconstruction of 2D periodic absorber lines in scatterometry},
journal = {J. Europ. Opt. Soc. Rap. Public.},
year = {2010},
volume = {5},
pages = {10053},
abstract = {Scatterometry as a non-imaging indirect optical method in wafer metrology is applicable to lithography masks designed for extreme ultraviolet (EUV) lithography , where light with wavelengths of about 13.5 nm is applied. The main goal is to reconstruct the critical dimensions (CD) of the mask, i.e., profile parameters such as line width, line height, and side-wall angle, from the measured diffracted light pattern and to estimate the associated uncertainties. The numerical simulation of the diffraction process for periodic 2D structures can be realized by the finite element solution of the two-dimensional Helmholtz equation. The inverse problem is expressed as a non-linear operator equation where the operator maps the sought mask parameters to the efficiencies of the diffracted plane wave modes. To solve this operator equation, the deviation of the measured efficiencies from the ones obtained computationally is minimized by a Gauss-Newton type iterative method. In the present paper, the admissibility of rectangular profile models for the evaluations of CD uniformity is studied. More precisely, several sets of typical measurement data are simulated for trapezoidal shaped EUV masks with different mask signatures characterized by various line widths, heights and side-wall angles slightly smaller than 90 degree. Using these sets, but assuming rectangular structures as the basic profiles of the numerical reconstruction algorithm, approximate line height and width parameters are determined as the critical dimensions of the mask. Finally, the model error due to the simplified shapes is analyzed by checking the deviations of the reconstructed parameters from their nominal values.},
keywords = {Scatterometrie,critical dimensions (CD),inverse problem,profile model,scatterometry},
tags = {8.41,Scatter-Inv},
web_url = {http://www.jeos.org/index.php/jeos{\textbackslash_}rp/article/view/10053},
language = {en},
ISSN = {1990-2573},
DOI = {10.2971/jeos.2010.10053},
author = {Gross, H and Richter, J and Rathsfeld, A and B{\"a}r, M}
}
@Article { Henn2010,
title = {Hyponormal and strongly hyponormal matrices in inner product spaces},
journal = {Linear Algebra and its Applications},
year = {2010},
volume = {433},
number = {6},
pages = {1055--1076},
abstract = {Complex matrices that are structured with respect to a possibly degenerate indefinite inner product are studied. Based on earlier works on normal matrices, the notions of hyponormal and strongly hyponormal matrices are introduced. A full characterization of such matrices is given and it is shown how those matrices are related to different concepts of normal matrices in degenerate inner product spaces. Finally, the existence of invariant semidefinite subspaces for strongly hyponormal matrices is discussed.},
keywords = {Adjoint,Degenerate inner product,H-Hyponormal,Invariant semidefinite subspace,Linear relations,Primary: 15A57,Secondary: 15A63,Strongly H-hyponormal},
tags = {8.41,},
web_url = {http://www.sciencedirect.com/science/article/pii/S0024379510002880},
ISSN = {00243795},
DOI = {10.1016/j.laa.2010.04.050},
author = {Henn, M-A and Mehl, C and Trunk, C}
}
@Article { Elster2010,
title = {Analysis of key comparisons: estimating laboratories' biases by a fixed effects model using Bayesian model averaging},
journal = {Metrologia},
year = {2010},
volume = {47},
number = {3},
pages = {113--119},
tags = {8.42,Bayes,KC},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/47/3/001},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/47/3/001},
author = {Elster, C and Toman, B}
}
@Article { Elster2010a,
title = {Linking of a RMO key comparison to a related CIPM key comparison using the degrees of equivalence of the linking laboratories},
journal = {Metrologia},
year = {2010},
volume = {47},
number = {1},
pages = {96--102},
tags = {8.42,KC},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/47/1/011},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/47/1/011},
author = {Elster, C and Chunovkina, A G and W{\"o}ger, W}
}
@Article { Ginelli2010,
title = {Large-scale collective properties of self-propelled rods},
journal = {Phys. Rev. Lett.},
year = {2010},
volume = {104},
number = {18},
pages = {184502},
abstract = {We study, in two space dimensions, the collective properties of constant-speed polar point particles interacting locally by nematic alignment in the presence of noise. This minimal approach to self-propelled rods allows one to deal with large numbers of particles, which exhibit a rich phenomenology distinctively different from all other known models for self-propelled particles. Extensive simulations reveal long-range nematic order, phase separation, and space-time chaos mediated by large-scale segregated structures.},
tags = {8.41, SPP, 8.43},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/20482178},
ISSN = {1079-7114},
DOI = {10.1103/PhysRevLett.104.184502},
author = {Ginelli, F and Peruani, F and B{\"a}r, M and Chat{\'e}, H}
}
@Article { Link2009b,
title = {Uncertainty evaluation for IIR (infinite impulse response) filtering using a state-space approach},
journal = {Measurement Science and Technology},
year = {2009},
volume = {20},
number = {5},
pages = {055104},
keywords = {dynamic measurement, digital filter, deconvolution, dynamic uncertainty},
tags = {8.42,Dynamik, Unsicherheit},
publisher = {IOP Publishing},
DOI = {10.1088/0957-0233/20/5/055104},
author = {Link, A and Elster, C}
}
@Article { Wiegmann2009,
title = {Suppression of aliasing in multi-sensor scanning absolute profile measurement},
journal = {Optics Express},
year = {2009},
volume = {17},
number = {13},
pages = {11098},
abstract = {The task of anti-aliasing in absolute profile measurement by multi-sensor scanning techniques is considered. Simulation results are presented which demonstrate that aliasing can be highly reduced by a suitable choice of the scanning steps. The simulation results were confirmed by results obtained for interferometric measurements (Nyquist frequency 1/646 \(\mu\)m-1) on a specifically designed chirp specimen with sinusoidal waves of amplitude 100 nm and wavelengths from 2.5 mm down to 19 \(\mu\)m.},
keywords = {Image recognition,Instrumentation,Interferometry,Metrology,Surface measurements,algorithms and filters,and metrology,figure,measurement},
tags = {8.42, Form, SimOpt},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=oe-17-13-11098{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {1094-4087},
DOI = {10.1364/OE.17.011098},
author = {Wiegmann, A and Schulz, M and Elster, C}
}
@Article { Wubbeler2009,
title = {Determination of the Complex Residual Error Parameters of a Calibrated One-Port Vector Network Analyzer},
journal = {IEEE Transactions on Instrumentation and Measurement},
year = {2009},
volume = {58},
number = {9},
pages = {3238--3244},
abstract = {A novel approach for the determination of the complex residual error parameters of a calibrated one-port vector network analyzer (VNA) is proposed. The method is based on a single-reflection measurement employing a high-precision airline terminated by a short. The complex-valued residual directivity and source match are extracted over the entire measured frequency range by applying a sophisticated data analysis scheme utilizing low-pass filtering and linear prediction. By including an additional reflection measurement of the utilized short, the method allows the residual reflection tracking to be evaluated. Based on numerical simulations, advisable settings of method parameters are determined. In addition to the verification of the VNA calibration, the complex residual error parameters can be used for a second-order correction of the measured data. The significant enhancement of accuracy, which can be achieved this way, is demonstrated for standard calibrations by comparing the second-order corrected reflection data with results obtained from the well-established cross-ratio (quarter-wave) method.},
keywords = {Calibration,calibration,complex residual error parameter determination,complex-valued residual directivity,cross-ratio method,data analysis scheme,high-precision airline,linear prediction,low-pass filtering,low-pass filters,network analysers,one-port vector network analyzer,residual error parameter,second-order correction,single-reflection measurement,vector network analyzer (VNA),verification},
tags = {8.42},
web_url = {http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5175350},
ISSN = {0018-9456},
DOI = {10.1109/TIM.2009.2017170},
author = {W{\"u}bbeler, G and Elster, C and Reichel, T and Judaschke, R}
}
@Article { Chunovkina2009,
title = {Evaluating systematic differences between laboratories in interlaboratory comparisons},
journal = {Measurement Techniques},
year = {2009},
volume = {52},
number = {7},
pages = {788--793},
tags = {8.42,KC},
web_url = {http://link.springer.com/10.1007/s11018-009-9340-1},
ISSN = {0543-1972},
DOI = {10.1007/s11018-009-9340-1},
author = {Chunovkina, A G and Elster, C and Lira, I and W{\"o}ger, W}
}
@Article { Gross2009,
title = {Profile reconstruction in extreme ultraviolet (EUV) scatterometry: modeling and uncertainty estimates},
journal = {Measurement Science and Technology},
year = {2009},
volume = {20},
number = {10},
pages = {105102},
keywords = {8.41,Scatter-EUV,Scatter-Inv,Scatterometrie},
tags = {8.41,Scatter-Inv},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/20/10/105102},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/20/10/105102},
author = {Gross, H and Rathsfeld, A and Scholze, F and B{\"a}r, M}
}
@Article { Elster2009,
title = {Bayesian uncertainty analysis under prior ignorance of the measurand versus analysis using the Supplement 1 to the Guide : a comparison},
journal = {Metrologia},
year = {2009},
volume = {46},
number = {3},
pages = {261--266},
tags = {8.42,Bayes,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/46/3/013},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/46/3/013},
author = {Elster, C and Toman, B}
}
@Inbook { Lira2009,
title = {Derivation of an output PDF from Bayes theorem and the principle of maximum entropy},
year = {2009},
volume = {Advanced Mathematical \& Computational Tools in Metrology VIII},
pages = {213},
tags = {8.42, Unsicherheit},
editor = {F. Pavese, M. B{\"a}r, J.M. Limares, C. Perruchet, N.F. Zhang},
publisher = {World Scientific New Jersey},
series = {Series on Advances in Mathematics for Applied Sciences},
edition = {78},
chapter = {31},
author = {Lira, I and Elster, C and W{\"o}ger, W and Cox, M G}
}
@Inbook { Wuebbeler2009,
title = {Impact of correlation in the measured frequency response on the results of a dynamic calibration},
year = {2009},
volume = {Advanced Mathematical \& Computational Tools in Metrology VIII},
pages = {369-374},
keywords = {dynamic measurement, frequency response, dynamic calibration},
tags = {8.42, Dynamik, Unsicherheit},
editor = {F. Pavese, M. B{\"a}r, J.M. Limares, C. Perruchet, N.F. Zhang},
publisher = {World Scientific New Jersey},
series = {Series on Advances in Mathematics for Applied Sciences},
edition = {78},
chapter = {52},
author = {W{\"u}bbeler, G and Link, A and Bruns, T and Elster, C}
}
@Inbook { Elster2009m,
title = {Analysis of dynamic measurements: compensation of dynamic error and evaluation of uncertainty},
year = {2009},
volume = {Advanced Mathematical \& Computational Tools in Metrology VIII},
pages = {80-89},
tags = {8.42, Dynamik, Unsicherheit},
editor = {F. Pavese, M. B{\"a}r, J.M. Limares, C. Perruchet, N.F. Zhang},
publisher = {World Scientific New Jersey},
series = {Series on Advances in Mathematics for Applied Sciences},
edition = {78},
chapter = {13},
author = {Elster, C and Link, A}
}
@Phdthesis { Wiegmann2009a,
title = {Multiple Sensorsysteme zur Topographiebestimmung optischer Oberfl{\"a}chen},
year = {2009},
tags = {8.42,Form, SimOpt},
url = {http://dx.doi.org/10.14279/depositonce-2278},
school = {TU Berlin},
type = {PhD Thesis},
author = {Wiegmann, A}
}
@Article { NiedermayerEL2013,
title = {Synchronization, phase locking, and metachronal wave formation in ciliary chains},
journal = {Chaos},
year = {2008},
month = {1},
day = {1},
volume = {18},
keywords = {8.43},
tags = {8.43},
DOI = {10.1063/1.2956984},
author = {Niedermayer, T and Eckhardt, B and Lenz, P}
}
@Article { Model2008,
title = {A scatterometry inverse problem in optical mask metrology},
journal = {Journal of Physics: Conference Series},
year = {2008},
volume = {135},
number = {1},
pages = {012071},
keywords = {8.41,Scatter-Inv,Scatterometrie},
tags = {8.41,Scatter-Inv},
web_url = {http://iopscience.iop.org/article/10.1088/1742-6596/135/1/012071},
publisher = {IOP Publishing},
language = {en},
ISSN = {1742-6596},
DOI = {10.1088/1742-6596/135/1/012071},
author = {Model, R and Rathsfeld, A and Gross, H and Wurm, M and Bodermann, B}
}
@Article { Knappe-Grueneberg2008,
title = {Influence of demagnetization coil configuration on residual field in an extremely magnetically shielded room: Model and measurements},
journal = {Journal of Applied Physics},
year = {2008},
volume = {103},
number = {7},
pages = {07E925},
abstract = {The Berlin magnetically shielded room 2 (BMSR-2) features a magnetic residual field below 500 pT and a field gradient level less than 0.5 pT {\^a}ˆ• mm , which are needed for very sensitive human biomagnetic recordings or low field NMR. Nevertheless, below 15 Hz , signals are compromised by an additional noise contribution due to vibration forced sensor movements in the field gradient. Due to extreme shielding, the residual field and its homogeneity are determined mainly by the demagnetization results of the mumetal shells. Eight different demagnetization coil configurations can be realized, each results in a characteristic field pattern. The spatial dc flux density inside BMSR-2 is measured with a movable superconducting quantum interference device system with an accuracy better than 50 pT . Residual field and field distribution of the current-driven coils fit well to an air-core coil model, if the high permeable core and the return lines outside of the shells are neglected. Finally, we homogenize the residual field by selecting a proper coil configuration.},
tags = {8.42},
web_url = {http://scitation.aip.org/content/aip/journal/jap/103/7/10.1063/1.2837876},
publisher = {AIP Publishing},
ISSN = {00218979},
DOI = {10.1063/1.2837876},
author = {Knappe-Grueneberg, S and Schnabel, A and W{\"u}bbeler, G and Burghoff, M}
}
@Article { Wiegmann2008,
title = {Absolute profile measurement of large moderately flat optical surfaces with high dynamic range},
journal = {Optics Express},
year = {2008},
volume = {16},
number = {16},
pages = {11975},
abstract = {We present a novel procedure for absolute, highly-accurate profile measurement with high dynamic range for large, moderately flat optical surfaces. The profile is reconstructed from many sub-profiles measured by a small interferometer which is scanned along the specimen under test. Additional angular and lateral distance measurements are used to account for the tilt of the interferometer and its precise lateral location during the measurements. Accurate positioning of the interferometer is not required. The algorithm proposed for the analysis of the data allows systematic errors of the interferometer and height offsets of the scanning stage to be eliminated and it does not reduce the resolution. By utilizing a realistic simulation scenario we show that accuracies in the nanometer range can be reached.},
keywords = {Image recognition,Instrumentation,Interferometry,Metrology,Surface measurements,algorithms and filters,and metrology,figure,measurement},
tags = {8.42, Form, SimOpt},
web_url = {http://www.osapublishing.org/viewmedia.cfm?uri=oe-16-16-11975{\&}seq=0{\&}html=true},
publisher = {Optical Society of America},
language = {EN},
ISSN = {1094-4087},
DOI = {10.1364/OE.16.011975},
author = {Wiegmann, A and Schulz, M and Elster, C}
}
@Article { Schulz2008,
title = {Optical flatness metrology: 40 years of progress},
journal = {Opt. Pura Apl},
year = {2008},
volume = {41},
pages = {325},
abstract = {Optical flatness metrology has improved significantly in the last decades due to novel measurement tools and new math-based methods. An overview is given summarizing the most important optical techniques for flatness metrology at the nanometer level. The capabilities of modern methods such as the interferometric three-flat test accompanied by a computer-aided evaluation, the Traceable Multi Sensor method as an improved stitching method, and difference deflectometry represented by the Extended Shear Angle Difference method are reviewed.},
note = {Open Access},
keywords = {Deflectometry, Interferometry, Mathematical methods, Metrology, Optical inspection},
tags = {8.42, SimOpt, Form},
url = {http://www.sedoptica.es/Menu_Volumenes/pdfs/314.pdf},
booktitle = {Opt. Pura Apl},
DOI = {10.2971/jeos.2010.10011},
author = {Schulz, M and Wiegmann, A and Marquez, A and Elster, C}
}
@Article { Romero,
title = {Study of surface electrocardiogram spectrum before and after pulmonary vein ablation in patients with persistent atrial fibrillation},
journal = {Journal of electrocardiology},
year = {2008},
volume = {41},
number = {6},
pages = {553--6},
abstract = {Atrial fibrillation (AF) is the most common clinical cardiac arrhythmia and is usually treated with the electrical isolation of the pulmonary veins from the atria. However, it is estimated that about 30{\%} of the patients undergoing this therapy will develop AF again. The purpose of this study was to test the dynamic changes of the spectra calculated in surface electrocardiograms (ECGs) before and after the ablation of the pulmonary veins. Surface ECGs of 14 patients with persistent AF undergoing this intervention were considered for this study. The QRS-T waves were subtracted from the ECGs using common spatial pattern, isolating the electrical activity of the atrium. The spectrum was then calculated and the main frequency peaks were identified. The smaller peaks with amplitude below 50{\%} of the maximum were discarded. Eleven of the patients were followed up after the intervention for 1 to 6 months. Two of the patients developed AF again; the other 9 remained in sinus rhythm. For most of the patients, the spectrum showed more order after the intervention. However, the main frequency did not experience a significant decrease in average (5.1 Hz [+/-1.3] to 4.9 Hz [+/-1.0]). Interestingly, the increment or decrease of the main frequency did not correlate with the recurrence of AF or not.},
keywords = {Atrial Fibrillation,Atrial Fibrillation: diagnosis,Atrial Fibrillation: surgery,Catheter Ablation,Computer-Assisted,Computer-Assisted: methods,Diagnosis,Electrocardiography,Electrocardiography: methods,Female,Humans,Male,Middle Aged,Postoperative Care,Postoperative Care: methods,Preoperative Care,Preoperative Care: methods,Prognosis,Pulmonary Veins,Pulmonary Veins: surgery,Reproducibility of Results,Sensitivity and Specificity,Treatment Outcome},
tags = {8.42},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/18817922},
ISSN = {1532-8430},
DOI = {10.1016/j.jelectrocard.2008.06.018},
author = {Romero, I and Koch, H and Fleck, E and Kriatselis, C}
}
@Article { Wubbeler2008,
title = {Evaluation of measurement uncertainty and its numerical calculation by a Monte Carlo method},
journal = {Measurement Science and Technology},
year = {2008},
volume = {19},
number = {8},
pages = {084009},
tags = {8.42,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0957-0233/19/8/084009},
publisher = {IOP Publishing},
language = {en},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/19/8/084009},
author = {W{\"u}bbeler, G and Krystek, M and Elster, C}
}
@Article { Chunovkina2008,
title = {Analysis of key comparison data and laboratory biases},
journal = {Metrologia},
year = {2008},
volume = {45},
number = {2},
pages = {211--216},
tags = {8.42,KC},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/45/2/010},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/45/2/010},
author = {Chunovkina, A G and Elster, C and Lira, I and W{\"o}ger, W}
}
@Article { Gross2008,
title = {Sensitivity analysis for indirect measurement in scatterometry and the reconstruction of periodic grating structures},
journal = {Waves in Random and Complex Media},
year = {2008},
volume = {18},
number = {1},
pages = {129--149},
abstract = {We discuss numerical algorithms for the determination of periodic surface structures from light diffraction patterns. With decreasing details of lithography masks, increasing demands on metrology techniques arise. Scatterometry as a non-imaging indirect optical method is applied to simple periodic line structures in order to determine parameters like side-wall angles, heights, top and bottom widths and to evaluate the quality of the manufacturing process. The numerical simulation of diffraction is based on the finite element solution of the Helmholtz equation. The inverse problem seeks to reconstruct the grating geometry from measured diffraction patterns. Restricting the class of gratings and the set of measurements, this inverse problem can be reformulated as a non-linear operator equation in Euclidean spaces. The operator maps the grating parameters to special efficiencies of diffracted plane-wave modes. We employ a Gau{\ss} {\^a}{\euro}“Newton type iterative method to solve this operator equation. The reconstruction ...},
keywords = {8.41,Scatter-Inv,Scatterometrie},
tags = {8.41,Scatter-Inv},
web_url = {http://www.tandfonline.com/doi/abs/10.1080/17455030701481823},
publisher = {Taylor {\&} Francis Group},
language = {en},
ISSN = {1745-5030},
DOI = {10.1080/17455030701481823},
author = {Gro{\ss}, H and Rathsfeld, A}
}
@Article { Elster2008c,
title = {Uncertainty evaluation for dynamic measurements modelled by a linear time-invariant system},
journal = {Metrologia},
year = {2008},
volume = {45},
number = {4},
pages = {464-473},
keywords = {dynamic measurement, digital filter, deconvolution, dynamic uncertainty},
tags = {8.42,Dynamik, Unsicherheit},
publisher = {IOP Publishing},
DOI = {10.1088/0026-1394/45/4/013},
author = {Elster, C and Link, A}
}
@Article { Lira2007,
title = {Probabilistic and least-squares inference of the parameters of a straight-line model},
journal = {Metrologia},
year = {2007},
volume = {44},
number = {5},
pages = {379--384},
tags = {8.42,Bayes,Regression,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/44/5/014},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/44/5/014},
author = {Lira, I and Elster, C and W{\"o}ger, W}
}
@Article { Link2007b,
title = {Modelling accelerometers for transient signals using calibration measurements upon sinusoidal excitation},
journal = {Measurement},
year = {2007},
volume = {40},
number = {9-10},
pages = {928-935},
abstract = {A recently proposed accelerometer model is applied for determining the accelerometer's output to transient accelerations. The model consists of a linear, second-order differential equation with unknown coefficients. It is proposed to estimate these model parameters from sinusoidal calibration measurements, and an estimation procedure based on linear least-squares is presented. In addition, the uncertainties associated with the estimated parameters are determined utilizing a Monte Carlo simulation technique. The performance of the proposed modelling approach was tested by its application to calibration measurements of two back-to-back accelerometers (ENDEVCO type 2270 and Br{{\"u}}el {\&} Kj{\ae}r type 8305). For each of the two accelerometers, the model was first estimated from sinusoidal calibration measurements and then used to predict the accelerometer's behaviour for two shock calibration measurements. Measured and predicted shock sensitivities were found consistent with differences below 1{\%} in most cases which confirms the benefit of the proposed modelling approach.},
keywords = {IIR filter,Modelling,Shock excitation,Sinusoidal excitation,Uncertainty, dynamic measurement},
tags = {8.42,Dynamik},
DOI = {10.1016/j.measurement.2006.10.011},
author = {Link, A and T{\"a}ubner, A and Wabinski, W and Bruns, T and Elster, C}
}
@Article { Link2007c,
title = {Comparing a template approach and complex bandpass filtering for single-trial analysis of auditory evoked M100},
journal = {Biomedizinische Technik. Biomedical engineering},
year = {2007},
volume = {52},
number = {1},
pages = {106--10},
abstract = {Two methods for single-trial analysis were compared, an established parametric template approach and a recently proposed non-parametric method based on complex bandpass filtering. The comparison was carried out by means of pseudo-real simulations based on magnetoencephalography measurements of cortical responses to auditory signals. The comparison focused on amplitude and latency estimation of the M100 response. The results show that both methods are well suited for single-trial analysis of the auditory evoked M100. While both methods performed similarly with respect to latency estimation, the non-parametric approach was observed to be more robust for amplitude estimation. The non-parametric approach can thus be recommended as an additional valuable tool for single-trial analysis.},
keywords = {Algorithms,Auditory,Auditory: physiology,Computer-Assisted,Computer-Assisted: methods,Diagnosis, Computer-Assisted,Diagnosis, Computer-Assisted: methods,Electroencephalography,Electroencephalography: methods,Evoked Potentials, Auditory,Evoked Potentials, Auditory: physiology,Likelihood Functions,Reproducibility of Results,Sample Size,Sensitivity and Specificity,Signal Processing, Computer-Assisted},
tags = {8.42, Gehirn},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/17313344},
ISSN = {0013-5585},
DOI = {10.1515/BMT.2007.020},
author = {Link, A and Burghoff, M and Salajegheh, A and Poeppel, D and Trahms, L and Elster, C}
}
@Article { Seifert2007,
title = {Patient safety concept for multichannel transmit coils},
journal = {Journal of magnetic resonance imaging : JMRI},
year = {2007},
volume = {26},
number = {5},
pages = {1315--21},
abstract = {PURPOSE: To propose and illustrate a safety concept for multichannel transmit coils in MRI based on finite-differences time-domain (FDTD) simulations and validated by measurements. MATERIALS AND METHODS: FDTD simulations of specific absorption rate (SAR) distributions in a cylindrical agarose phantom were carried out for various radio frequency (RF) driving conditions of a four-element coil array. Additionally, maps of transmit amplitude, signal phase, and temperature rise following RF heating were measured by MRI. RESULTS: Quantitative agreement was achieved between simulated and measured field distributions, thus validating the numerical modeling. When applying the same RF power to each element of the coil array but systematically varying the RF phase between its elements, the maximum of the SAR distribution was found to vary by a factor of about 15. CONCLUSION: Our results demonstrate that current RF safety approaches are inadequate to deal with the new challenge of multichannel transmit coils. We propose a new concept based on a systematic investigation of the parameter space for RF phases and amplitudes. In this way the driving conditions generating the highest local SAR values per unit power can be identified and appropriately considered in the RF safety concept of a given MRI system.},
keywords = {Biological,Body Burden,Computer Simulation,Electromagnetic Fields,Equipment Safety,Equipment Safety: methods,Germany,Humans,Magnetic Resonance Imaging,Magnetic Resonance Imaging: instrumentation,Models, Biological,Radiation Dosage,Radiation Monitoring,Radiation Monitoring: methods,Radiation Protection,Radiation Protection: methods,Relative Biological Effectiveness,Risk Assessment,Risk Assessment: methods,Risk Factors,Transducers,Whole-Body Counting,Whole-Body Counting: methods},
tags = {8.42},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/17969165},
ISSN = {1053-1807},
DOI = {10.1002/jmri.21149},
author = {Seifert, F and W{\"u}bbeler, G and Junge, S and Ittermann, B and Rinneberg, H}
}
@Article { Wubbeler2007,
title = {Verification of humans using the electrocardiogram},
journal = {Pattern Recognition Letters},
year = {2007},
volume = {28},
number = {10},
pages = {1172--1175},
abstract = {A feasibility study on the potential of the electrocardiogram (ECG) for biometrical applications is presented. A test set of 234 ECG recordings from 74 subjects was compiled emulating a realistic scenario for ECG biometrics by using short measurements of 10s length in combination with a practicable choice of ECG leads. The long-term stability of the individual ECG was investigated during time periods up to several years. Verification and identification was done by utilizing the heart vector and a simple distance measure. As a result, encouraging error rates were obtained; for verification, for instance, the achieved equal error rate was smaller than 3{\%}.},
keywords = {Biometrics,Electrocardiogram (ECG),Identification,Verification},
tags = {8.42},
web_url = {http://www.sciencedirect.com/science/article/pii/S0167865507000463},
ISSN = {01678655},
DOI = {10.1016/j.patrec.2007.01.014},
author = {W{\"u}bbeler, G and Stavridis, M and Kreiseler, D and Bousseljot, R-D and Elster, C}
}
@Article { Wubbeler2007a,
title = {Latency analysis of single auditory evoked M100 responses by spatio-temporal filtering},
journal = {Physics in medicine and biology},
year = {2007},
volume = {52},
number = {15},
pages = {4383--92},
abstract = {Appropriate spatial filtering followed by temporal filtering is well suited for the single-trial analysis of multi-channel magnetoencephalogram or electroencephalogram recordings. This is demonstrated by the results of a single-trial latency analysis obtained for auditory evoked M100 responses from nine subjects using two different stimulation frequencies. Spatial filters were derived automatically from the data via noise-adjusted principle component analysis, and single-trial latencies were estimated from the signal phase after complex bandpass filtering. For each of the two stimulation frequencies, estimated single-trial latencies were consistent with results obtained from a standard approach using averaged evoked responses. The quality of the estimated single-trial latencies was additionally assessed by their ability to separate between the two different stimulation frequencies. As a result, more than 80{\%} of the single trials can be classified correctly by their estimated latencies.},
keywords = {Acoustic Stimulation,Acoustic Stimulation: methods,Algorithms,Diagnosis, Computer-Assisted,Diagnosis, Computer-Assisted: methods,Evoked Potentials, Auditory,Evoked Potentials, Auditory: physiology,Humans,Magnetoencephalography,Magnetoencephalography: methods,Pitch Perception,Pitch Perception: physiology,Reaction Time,Reaction Time: physiology,Reproducibility of Results,Sensitivity and Specificity},
tags = {8.42, Gehirn},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/17634639},
ISSN = {0031-9155},
DOI = {10.1088/0031-9155/52/15/002},
author = {W{\"u}bbeler, G and Link, A and Burghoff, M and Trahms, L and Elster, C}
}
@Article { Bauer2007,
title = {Alternans and the influence of ionic channel modifications: Cardiac three-dimensional simulations and one-dimensional numerical bifurcation analysis},
journal = {Chaos (Woodbury, N.Y.)},
year = {2007},
volume = {17},
number = {1},
pages = {015104},
abstract = {Cardiac propagation is investigated by simulations using a realistic three-dimensional (3D) geometry including muscle fiber orientation of the ventricles of a rabbit heart and the modified Beeler-Reuter ionic model. Electrical excitation is introduced by a periodic pacing of the lower septum. Depending on the pacing frequency, qualitatively different dynamics are observed, namely, normal heart beat, T-wave alternans, and 2:1 conduction block at small, intermediate, and large pacing frequencies, respectively. In a second step, we performed a numerical stability and bifurcation analysis of a pulse propagating in a one-dimensional (1D) ring of cardiac tissue. The precise onset of the alternans instability is obtained from computer-assisted linear stability analysis of the pulse and computation of the associated spectrum. The critical frequency at the onset of alternans and the profiles of the membrane potential agree well with the ones obtained in the 3D simulations. Next, we computed changes in the wave profiles and in the onset of alternans for the Beeler-Reuter model with modifications of the sodium, calcium, and potassium channels, respectively. For this purpose, we employ the method of numerical bifurcation and stability analysis. While blocking of calcium channels has a stabilizing effect, blocked sodium or potassium channels lead to the occurrence of alternans at lower pacing frequencies. The findings regarding channel blocking are verified within three-dimensional simulations. Altogether, we have found T-wave alternans and conduction block in 3D simulations of a realistic rabbit heart geometry. The onset of alternans has been analyzed by numerical bifurcation and stability analysis of 1D wave trains. By comparing the results of the two approaches, we find that alternans is not strongly influenced by ingredients such as 3D geometry and propagation anisotropy, but depends mostly on the frequency of pacing (frequency of subsequent action potentials). In addition, we have introduced numerical bifurcation and stability analysis as a tool into heart modeling and demonstrated its efficiency in scanning a large set of parameters in the case of models with reduced conductivity. Bifurcation analysis also provides an accurate test for analytical theories of alternans as is demonstrated for the case of the restitution hypothesis.},
keywords = {8.41,Action Potentials,Animals,Arrhythmias, Cardiac,Arrhythmias, Cardiac: physiopathology,Biological Clocks,Computer Simulation,Electric Countershock,Electric Countershock: methods,Heart Conduction System,Heart Conduction System: physiopathology,Heart Ventricles,Heart Ventricles: physiopathology,Humans,Imaging, Three-Dimensional,Ion Channel Gating,Ion Channels,Models, Cardiovascular,Myocardial Contraction,Oscillometry,Oscillometry: methods,Rabbits,Therapy, Computer-Assisted,Therapy, Computer-Assisted: methods},
tags = {8.41},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/17411261},
ISSN = {1054-1500},
DOI = {10.1063/1.2715668},
author = {Bauer, S and R{\"o}der, G and B{\"a}r, M}
}
@Article { Haberkorn2007,
title = {Analytical study of the magnetic field from extended sources in subcortical structures},
year = {2007},
keywords = {8.41},
tags = {8.41},
web_url = {http://www.researchgate.net/publication/238648406{\textbackslash_}Analytical{\textbackslash_}study{\textbackslash_}of{\textbackslash_}the{\textbackslash_}magnetic{\textbackslash_}field{\textbackslash_}from{\textbackslash_}extended{\textbackslash_}sources{\textbackslash_}in{\textbackslash_}subcortic},
author = {Haberkorn, W and Burghoff, M}
}
@Article { Elster2007,
title = {Draft GUM Supplement 1 and Bayesian analysis},
journal = {Metrologia},
year = {2007},
volume = {44},
number = {3},
pages = {L31--L32},
tags = {8.42,Bayes,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/44/3/N03},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/44/3/N03},
author = {Elster, C and W{\"o}ger, W and Cox, M G}
}
@Article { Elster2007b,
title = {Analysis of dynamic measurements and determination of time-dependent measurement uncertainty using a second-order model},
journal = {Measurement Science and Technology},
year = {2007},
volume = {18},
number = {12},
pages = {3682-3687},
keywords = {dynamic measurement},
tags = {8.42,Dynamik, Unsicherheit},
publisher = {IOP Publishing},
language = {en},
DOI = {10.1088/0957-0233/18/12/002},
author = {Elster, C and Link, A and Bruns, T}
}
@Article { Elster2007a,
title = {Calculation of uncertainty in the presence of prior knowledge},
journal = {Metrologia},
year = {2007},
volume = {44},
number = {2},
pages = {111--116},
tags = {8.42,Unsicherheit},
web_url = {http://iopscience.iop.org/article/10.1088/0026-1394/44/2/002},
publisher = {IOP Publishing},
language = {en},
ISSN = {0026-1394},
DOI = {10.1088/0026-1394/44/2/002},
author = {Elster, C}
}
@Article { Model2006,
title = {Improved transient hot strip sensor design by means of FEM simulations},
journal = {THERMAL CONDUCTIVITY},
year = {2006},
volume = {28},
pages = {298--308},
keywords = {8.41},
tags = {8.41},
author = {Model, R and Stosch, R and Hammerschmidt, U}
}
@Article { Nicola2006,
title = {Wave instability induced by nonlocal spatial coupling in a model of the light-sensitive Belousov-Zhabotinsky reaction},
journal = {Physical review. E, Statistical, nonlinear, and soft matter physics},
year = {2006},
volume = {73},
number = {6 Pt 2},
pages = {066225},
abstract = {We study spatiotemporal patterns resulting from instabilities induced by nonlocal spatial coupling in the Oregonator model of the light-sensitive Belousov-Zhabotinsky reaction. In this system, nonlocal coupling can be externally imposed by means of an optical feedback loop which links the intensity of locally applied illumination with the activity in a certain vicinity of a particular point weighted by a given coupling function. This effect is included in the three-variable Oregonator model by an additional integral term in the photochemically induced bromide flow. A linear stability analysis of this modified Oregonator model predicts that wave and Turing instabilities of the homogeneous steady state can be induced for experimentally realistic parameter values. In particular, we find that a long-range inhibition in the optical feedback leads to a Turing instability, while a long-range activation induces wave patterns. Using a weakly nonlinear analysis, we derive amplitude equations for the wave instability which are valid close to the instability threshold. Therein, we find that the wave instability occurs supercritically or subcritically and that traveling waves are preferred over standing waves. The results of the theoretical analysis are in good agreement with numerical simulations of the model near the wave instability threshold. For larger distances from threshold, a secondary breathing instability is found for traveling waves.},
keywords = {8.41},
tags = {8.41},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/16906964},
ISSN = {1539-3755},
DOI = {10.1103/PhysRevE.73.066225},
author = {Nicola, E M and B{\"a}r, M and Engel, H}
}
@Article { Peruani2006,
title = {Nonequilibrium clustering of self-propelled rods},
journal = {Physical Review E},
year = {2006},
volume = {74},
number = {3},
pages = {030904},
keywords = {8.41,8.43},
tags = {8.41,8.43},
web_url = {http://link.aps.org/doi/10.1103/PhysRevE.74.030904},
ISSN = {1539-3755},
DOI = {10.1103/PhysRevE.74.030904},
author = {Peruani, F and Deutsch, A and B{\"a}r, M}
}
@Article { Martens2006,
title = {Final report on the key comparison EUROMET.AUV.V-K1},
journal = {Metrologia},
year = {2006},
volume = {43},
number = {1A},
pages = {09002-09002},
tags = {8.42,Dynamik,KC},
publisher = {IOP Publishing},
DOI = {10.1088/0026-1394/43/1A/09002},
author = {von Martens, H-J and Elster, C and Link, A and T{\"a}ubner, A and Bruns, T}
}
@Article { Link2006a,
title = {Calibration of accelerometers: determination of amplitude and phase response upon shock excitation},
journal = {Measurement Science and Technology},
year = {2006},
volume = {17},
number = {7},
pages = {1888-1894},
tags = {8.42,Dynamik},
publisher = {IOP Publishing},
language = {en},
DOI = {10.1088/0957-0233/17/7/030},
author = {Link, A and T{\"a}ubner, A and Wabinski, W and Bruns, T and Elster, C}
}
@Article { Link2006,
title = {Modellierung von Kraft- und Beschleunigungsaufnehmern f{\"u}r die Sto{\ss}kalibrierung (Modelling Force and Acceleration Transducers for Shock Calibrations)},
journal = {tm - Technisches Messen},
year = {2006},
volume = {73},
number = {12},
pages = {675-683},
tags = {8.42,Dynamik},
DOI = {10.1524/teme.2006.73.12.675},
author = {Link, A and Kobusch, M and Bruns, T and Elster, C}
}
@Article { Leistner2006,
title = {Tonic neuronal activation during simple and complex finger movements analyzed by DC-magnetoencephalography},
journal = {Neuroscience letters},
year = {2006},
volume = {394},
number = {1},
pages = {42--7},
abstract = {Functional neuroimaging techniques map neuronal activation indirectly via local concomitant cortical vascular/metabolic changes. In a complementary approach, DC-magnetoencephalography measures neuronal activation dynamics directly, notably in a time range of the slow vascular/metabolic response. Here, using this technique neuronal activation dynamics and patterns for simple and complex finger movements are characterized intraindividually: in 6/6 right-handed subjects contralateral prolonged (30 s each) complex self-paced sequential finger movements revealed stronger field amplitudes over the pericentral sensorimotor cortex than simple movements. A consistent lateralization for contralateral versus ipsilateral finger movements was not found (4/6). A subsequent sensory paradigm focused on somatosensory afferences during the motor tasks and the reliability of the measuring technique. In all six subjects stable sustained neuronal activation during electrical median nerve stimulation was recorded. These neuronal quasi-tonic activation characteristics provide a new non-invasive neurophysiological measure to interpret signals mapped by functional neuroimaging techniques.},
keywords = {Adult,Brain Mapping,Evoked Potentials, Somatosensory,Evoked Potentials, Somatosensory: physiology,Evoked Potentials, Somatosensory: radiation effect,Female,Fingers,Fingers: physiology,Functional Laterality,Functional Laterality: physiology,Humans,Magnetoencephalography,Male,Motor Cortex,Motor Cortex: physiology,Motor Cortex: radiation effects,Movement,Movement: physiology,Movement: radiation effects,Psychomotor Performance,Psychomotor Performance: physiology,Psychomotor Performance: radiation effects,Somatosensory,Somatosensory: physiology,Somatosensory: radiation effect},
tags = {8.42, Gehirn},
web_url = {http://www.sciencedirect.com/science/article/pii/S0304394005011523},
ISSN = {0304-3940},
DOI = {10.1016/j.neulet.2005.10.004},
author = {Leistner, S and W{\"u}bbeler, G and Trahms, L and Curio, G and Mackert, B M}
}
@Article { Wei2006,
title = {Nucleation of spiral wave patterns at surface defects},
journal = {Physical review. E, Statistical, nonlinear, and soft matter physics},
year = {2006},
volume = {73},
number = {1 Pt 2},
pages = {016210},
abstract = {The nucleation of spiral waves at a surface defect during catalytic CO oxidation on Pt(110) has been studied with a low energy electron microscope system. It is found that reaction fronts originate from a boundary layer between the defect and the surrounding Pt(110) area. The findings are corroborated by numerical simulations within a realistic reaction-diffusion model of the surface reaction.},
keywords = {8.41},
tags = {8.41},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/16486261},
ISSN = {1539-3755},
DOI = {10.1103/PhysRevE.73.016210},
author = {Wei, H and Lilienkamp, G and Davidsen, J and B{\"a}r, M and Imbihl, R}
}
@Article { Schulz2006,
title = {Traceable multiple sensor system for measuring curved surface profiles with high accuracy and high lateral resolution},
journal = {Optical Engineering},
year = {2006},
volume = {45},
number = {6},
tags = {8.42,Form,SimOpt},
DOI = {10.1117/1.2208568},
author = {Schulz, M and Elster, C}
}
@Article { Borner2006,
title = {A generalized discrete model linking rippling pattern formation and individual cell reversal statistics in colonies of myxobacteria},
journal = {Physical biology},
year = {2006},
volume = {3},
number = {2},
pages = {138--46},
abstract = {Self-organization processes in multicellular aggregates of bacteria and amoebae offer fascinating insights into the evolution of cooperation and differentiation of cells. During myxobacterial development a variety of spatio-temporal patterns emerges such as counterpropagating waves of cell density that are known as rippling. Recently, several models have been introduced that qualitatively reproduce these patterns. All models include active motion and a collision-triggered reversal of individual bacteria. Here, we present a systematic study of a generalized discrete model that is based on similar assumptions as the continuous model by Igoshin et al (2001 Proc. Natl Acad. Sci. USA 98 14913). We find counterpropagating as well as unidirectional rippling waves in extended regions of the parameter space. If the interaction strength and the degree of cooperativity are large enough, rippling patterns appear even in the absence of a refractory period. We show for the first time that the experimentally observed double peak in the reversal statistics of bacteria in rippling colonies (Welch and Kaiser 2001 Proc. Natl Acad. Sci. USA 98 14907) can be reproduced in simulations of counterpropagating rippling waves which are dominant in experiments. In addition, the reversal statistics in the pre-rippling phase is correctly reproduced.},
keywords = {8.41,Biological,Biological Evolution,Computer Simulation,Linear Models,Models, Biological,Myxococcales,Myxococcales: growth {\&} development},
tags = {8.41},
web_url = {http://www.ncbi.nlm.nih.gov/pubmed/16829700},
ISSN = {1478-3975},
DOI = {10.1088/1478-3975/3/2/006},
author = {B{\"o}rner, U and Deutsch, A and B{\"a}r, M}
}
@Article { Haberkorn2006,
title = {Pseudo current density maps of electrophysiological heart, nerve or brain function and their physical basis},
journal = {Biomagnetic research and technology},
year = {2006},
volume = {4},
number = {1},
pages = {5},
abstract = {BACKGROUND: In recent years the visualization of biomagnetic measurement data by so-called pseudo current density maps or Hosaka-Cohen (HC) transformations became popular. METHODS: The physical basis of these intuitive maps is clarified by means of analytically solvable problems. RESULTS: Examples in magnetocardiography, magnetoencephalography and magnetoneurography demonstrate the usefulness of this method. CONCLUSION: Hardware realizations of the HC-transformation and some similar transformations are discussed which could advantageously support cross-platform comparability of biomagnetic measurements.},
keywords = {8.41},
tags = {8.41},
web_url = {http://www.biomagres.com/content/4/1/5},
publisher = {BioMed Central Ltd},
language = {en},
ISSN = {1477-044X},
DOI = {10.1186/1477-044X-4-5},
author = {Haberkorn, W and Steinhoff, U and Burghoff, M and Kosch, O and Morguet, A and Koch, H}
}
@Article { Hammerschmidt2006a,
title = {JANUS: High Temperature Transient Hot Bridge Sensor},
journal = {THERMAL CONDUCTIVITY},
year = {2006},
volume = {28},
pages = {288--297},
keywords = {8.41},
tags = {8.41},
author = {Hammerschmidt, U and Meier, V and Model, R}
}
@Article { Gross2006,
title = {Mathematical modelling of indirect measurements in scatterometry},
journal = {Measurement},
year = {2006},
volume = {39},
number = {9},
pages = {782--794},
keywords = {8.41},
tags = {8.41, Scatter-Inv},
web_url = {http://www.researchgate.net/publication/223944217{\textbackslash_}Mathematical{\textbackslash_}modelling{\textbackslash_}of{\textbackslash_}indirect{\textbackslash_}measurements{\textbackslash_}in{\textbackslash_}scatterometry},
ISSN = {02632241},
DOI = {10.1016/j.measurement.2006.04.009},
author = {Gro{\ss}, H and Model, R and B{\"a}r, M and Wurm, M and Bodermann, B and Rathsfeld, A}
}
@Article { Elster2006,
title = {Coupled distance sensor systems for high-accuracy topography measurement: Accounting for scanning stage and systematic sensor errors},
journal = {Precision Engineering},
year = {2006},
volume = {30},
number = {1},
pages = {32--38},
abstract = {Scanning topography measurements using systems of coupled distance sensors suffer from the presence of scanning stage and systematic sensor errors. While scanning stage errors can be estimated for suitably-designed sensor systems, it is usually not possible to simultaneously estimate both scanning stage and systematic sensor errors. Additional angular scanning stage measurements can solve this problem, and potentials and limitations of such a proceeding will be assessed. It is shown that perfect topography reconstruction can be achieved in the presence of systematic sensor and certain scanning stage errors provided that the measurements are noise-free and no further systematic errors emerge. In general, the topography is reconstructed by the application of least-squares, and the uncertainty associated with the reconstructed topography is derived. Resulting topography accuracies are evaluated for different noise levels of the distance sensor and angular scanning stage measurements, and practical considerations are discussed. The gain in accuracy due to accounting for scanning stage and systematic sensor errors can be large, and high accuracies can be reached.},
keywords = {Angular measurement,Distance sensor,High accuracy,High resolution,Least-squares,Topography,Uncertainty},
tags = {8.42,Form,SimOpt},
web_url = {http://www.sciencedirect.com/science/article/pii/S0141635905000504},
ISSN = {01416359},
DOI = {10.1016/j.precisioneng.2005.04.001},
author = {Elster, C and Weing{\"a}rtner, I and Schulz, M}
}
@Article { Geckeler2006,
title = {Calibration of angle encoders using transfer functions},
journal = {Measurement Science and Technology},
year = {2006},
volume = {17},
number = {10},
pages = {2811--2818},
tags = {8.42},
web_url = {http://www.researchgate.net/publication/231067471{\textbackslash_}Calibration{\textbackslash_}of{\textbackslash_}angle{\textbackslash_}encoders{\textbackslash_}using{\textbackslash_}transfer{\textbackslash_}functions},
ISSN = {0957-0233},
DOI = {10.1088/0957-0233/17/10/036},
author = {Geckeler, R D and Fricke, A and Elster, C}
}
@Article { Model2005b,
title = {An identification procedure for thermal transport properties of layered solids by means of transient measurements},
journal = {Thermal Conductivity 26/Thermal Expansion 14},
year = {2005},
pages = {346--357},
tags = {8.41, Flow},
author = {Model, R and Hammerschmidt, U}
}
@Article { Model2005,
title = {Thermal Transport Properties of Layered Materials: Identification by a New Numerical Algorithm for Transient Measurements},
journal = {International Journal of Thermophysics},
year = {2005},
volume = {26},
number = {1},
pages = {165--178},
keywords = {8.41},
tags = {8.41, Flow},
web_url = {http://www.researchgate.net/publication/226424470{\textbackslash_}Thermal{\textbackslash_}Transport{\textbackslash_}Properties{\textbackslash_}of{\textbackslash_}Layered{\textbackslash_}Materials{\textbackslash_}Identification{\textbackslash_}by{\textbackslash_}a{\textbackslash_}New{\textbackslash_