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345 results:
151. Monte Carlo methods for simulating image contrast in SEM  
Date: 03.01.2018
Percental score: 15 %
Monte Carlo methods for simulating image contrast in SEM Iris Weidner Physikalisch-Technische Bundesanstalt 5.24 Elektronenmikroskopie 38116 Braunschweig iris.weidner@ptb.de (0531) 592-5201 (0531)  
152. Pulse-driven AC Josephson voltage standard with an output voltage of 2.25 VRMS  
Date: 28.11.2017
Percental score: 7 %
Frequency spectrum and time domain of a sine waveform synthesized with a frequency To increase the output voltage of the pulse-driven Josephson voltage standard, 16 arrays, implemented on 8 chips, were connected in series. This configuration leads to the operation of 162,000  
153. Preparation for the introduction of the revised SI in the field of electricity and magnetism  
Date: 28.11.2017
Percental score: 18 %
The Consultative Committee for Electricity and Magnetism (CCEM) of the Convention of the Meter took preparatory steps for the introduction of the revised SI at its 30th meeting from March 22 to 24,  
154. Broadband traveling-wave parametric amplifier with more than 20 dB gain in the GHz frequency range  
Date: 27.11.2017
Percental score: 6 %
Test chip with superconducting SQUID series arrays Quantum information technology requires broadband amplifiers with extremely low intrinsic noise. A traveling-wave parametric amplifier based on a series array of one-junction SQUIDs was developed at  
155. nanoSQUIDs  
Date: 13.11.2017
Percental score: 7 %
We also use our fabrication technology for Josephson voltage standards for fabricating other circuits. Especially the fabrication of very small structures or junctions allows additional and new  
156. PTB News 3/2017  
Date: 06.11.2017
Percental score: 1 %
PTB News 3/2017, English edition, Issue October 2017 PTB News 3/2017 news Scientific Newsletter Three times a year, PTB News provides topical information from the varied spectrum of activities of  
157. Mass determination of two new 28Si spheres in vacuum in preparation of the redefinition of the kilogram  
Date: 01.11.2017
Percental score: 4 %
A relative standard uncertainty (k = 1) of 6.1 × 10−9 was achieved for the mass determination in vacuum of two silicon spheres manufactured from a new 28Si crystal. The measurements  
158. Metrology for the Digitalization of Economy and Society  
Date: 26.10.2017
Percental score: 1 %
Metrology for the Digitalization of Economy and  
159. Welmec guide en  
Date: 29.06.2017
Percental score: 1 %
Welmec guide en WELMEC 7.2 2015 Software Guide (Measuring Instruments Directive 2014/32/EU1) WELMEC 7.2, 2015: Software Guide WELMEC European cooperation in legal metrology WELMEC is a  
160. PTB President Joachim Ullrich awarded Federal Cross of Merit, Class 1  
Date: 17.05.2017
Percental score: 6 %
He is a top-ranking scientist who unites people and leads them toward success.  This simple formula could be used to explain Professor Dr. Joachim Ullrich's extensive achievements.  The  
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