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Topic Area: Energy

Displaying records 31 to 40 of 403 records.
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31. Improvements to the Johnson Noise Thermometry System for Measurements at 505 ‹ 800 K
Topic: Energy
Published: 9/12/2013
Authors: Weston Leo Tew, Kazuaki Yamazawa, Samuel Paul Benz, Alessio Pollarolo, Horst Rogalla, Paul David Dresselhaus
Abstract: The National Institute of Standards and Technology (NIST) is currently using Johnson noise thermometry (JNT) to determine the deviations of the International Temperature Scale of 1990 (ITS-90) from the thermodynamic temperature in the range of 505‹93 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911459

32. Development of a Quantum-Voltage-Calibrated Noise Thermometer at NIM
Topic: Energy
Published: 9/11/2013
Authors: Jifeng Qu, Samuel Paul Benz, Jianqiang Zhang, Horst Rogalla, Yang Fu, Alessio Pollarolo, Jintao Zhang
Abstract: A quantum-voltage-calibrated Johnson-noise thermometer was developed at NIM, which measures the Boltzmann constant k through comparing the thermal noise across a 100  sense resistor at the temperature of the triple point water to the comb-lik ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910779

33. Johnson-noise thermometry based on a quantized-voltage noise source at NIST
Topic: Energy
Published: 9/11/2013
Authors: Alessio Pollarolo, Tae H. Jeong, Samuel Paul Benz, Paul David Dresselhaus, Horst Rogalla, Weston Leo Tew
Abstract: Johnson Noise Thermometry is an electronic approach to measuring temperature. For several years, NIST has been developing a switching-correlator-type Johnson-noise thermometer that uses a quantized voltage noise source as an accurate voltage referenc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910730

34. Time-resolved surface infrared spectroscopy during atomic layer deposition
Topic: Energy
Published: 9/10/2013
Authors: Brent A Sperling, John J. Hoang, William Andrew Kimes, James E Maslar
Abstract: This work presents a novel method for obtaining surface infrared spectra with sub-second time resolution during atomic layer deposition (ALD). Using a rapid-scan Fourier transform infrared (FT-IR) spectrometer, we obtain a series of interferograms ( ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912740

35. Theory and Algorithms for Weighted Total Least-Squares Fitting of Lines, Planes, and Parallel Planes to Support Tolerancing Standards
Topic: Energy
Published: 8/16/2013
Authors: Craig M Shakarji, Vijay Srinivasan
Abstract: We present the theory and algorithms for fitting a line, a plane, two parallel planes (corresponding to a slot or a slab) or many parallel planes in a total (orthogonal) least-squares sense to coordinate data that is weighted. Each of these problems ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912180

36. Soft X-ray Characterization of DSA Block Copolymers
Topic: Energy
Published: 8/12/2013
Authors: Daniel Franklin Sunday, Wen-Li Wu, Regis J Kline
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913184

37. 3D X-ray Metrology for Block Copolymer Lithography Line-Space Patterns
Topic: Energy
Published: 7/15/2013
Authors: Daniel Franklin Sunday, Matthew R. Hammond, Chengqing C. Wang, Wen-Li Wu, Regis J Kline, Gila E. Stein
Abstract: We report on the development of a new measurement method, resonant critical-dimension small-angle x-ray scattering (CD-SAXS), for the characterization of the buried structure of block copolymers (BCP) used in directed self assembly (DSA). We use reso ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913778

38. Absolute spectral responsivity measurements of solar cells by a hybrid optical technique
Topic: Energy
Published: 7/15/2013
Authors: Behrang H Hamadani, John F Roller, Brian P Dougherty, Fiona Persaud, Howard W Yoon
Abstract: An irradiance mode, absolute differential spectral response measurement system for solar cells is presented. The system is based on combining the monochromator-based approach of determining the power mode spectral responsivity of cells with an LED-b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913725

39. Frameworks and Data Initiatives for Smart Grid and other Cyber-Physical Systems
Topic: Energy
Published: 7/1/2013
Author: David A Wollman
Abstract: I describe the NIST smart grid framework and its applicability as a model for organizational efforts to advance cyber-physical systems, and provide an overview of smart grid data initiatives.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913971

40. Flat Frequency Response in the Electronic Measurement of the Boltzmann Constant
Topic: Energy
Published: 6/1/2013
Authors: Jifeng Qu, Horst Rogalla, Yang Fu, Jianqiang Zhang, Alessio Pollarolo, Samuel Paul Benz
Abstract: A new quantum voltage calibrated Johnson noise thermometer (JNT) was developed at NIM to demonstrate the electrical approach that determines the Boltzmann constant k by comparing electrical and thermal noise power. A measurement with an integration p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911739



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