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Displaying records 51 to 60 of 123 records.
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51. 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

52. Horizontal Convective Boiling of Pure and Mixed Refrigerants Within a Micro-Fin Tube
Topic: Energy
Published: 10/4/2007
Author: Mark A Kedzierski
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905038

53. Horizontal Convective Boiling of R134a, R1234yf/R134a, and R1234ze(E)within a Micro-Fin Tube
Topic: Energy
Published: 6/24/2014
Authors: Mark A Kedzierski, ki-jung park
Abstract: This report presents local convective boiling measurements in a micro-fin tube for R134a and two low global warming potential (GWP ) refrigerants: R1234yf/ R134a, 56/44 % mass and R1234ze(E). The heat transfer coefficient of the three test fluids w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914518

54. Imaging of nanoscale charge transport in bulk heterojunction solar cells
Topic: Energy
Published: 6/17/2011
Authors: Behrang H Hamadani, Nadine Emily Gergel-Hackett, Paul M Haney, Nikolai B Zhitenev
Abstract: We have studied the local charge transport properties of organic bulk heterojunction solar cells based on the blends of poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) with a photoconductive atomic force microscope (PCAF ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905890

55. Improvements in the NIST Johnson Noise Thermometry System
Topic: Energy
Published: 4/1/2009
Authors: Samuel Paul Benz, Jifeng Qu, Horst Rogalla, D. R White, Paul David Dresselhaus, Weston Leo Tew, Sae Woo Nam
Abstract: We have developed a Johnson noise thermometry (JNT) system that is calibrated by precision waveforms synthesized with a quantized voltage noise source (QVNS). Significant improvements to the QVNS and the cross-correlation measurement electronics have ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33058

56. Inelastic Neutron Scattering on Polymer Electrolytes for Lithium-Ion Batteries
Topic: Energy
Published: 5/7/2012
Authors: Huagen H. Peng, Madhu Sudan Tyagi, Kirt A. Page, Christopher L Soles
Abstract: The relationship between ion transport and polymer dynamics is central to the pursuit of solid polymer electrolytes for lithium batteries. This understanding is critical to achieve solid polymer electrolyte systems of sufficiently high ion conductiv ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910506

57. Interlaboratory Comparison of Environmental Analyses Associated with Increased Energy Production
Topic: Energy
Published: 12/1/1979
Authors: Harry S Hertz, L.R. Hilpert, Willie E May, Stephen A Wise, Jeanice M Brown Thomas, S. N. Chesler, Franklin R Guenther
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901271

58. Interoperability and the DMIS experience
Topic: Energy
Published: 10/30/2009
Author: John A Horst
Abstract: Because they enable true interoperability, information exchange standards can help manufacturers reduce cost and improve product quality, but only if the standards are developed and implemented correctly. We will answer questions manufacturers and su ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903532

59. Johnson Noise Thermometry Measurement of the Boltzmann Constant with a 200 Ohm Sense Resistor
Topic: Energy
Published: 6/1/2013
Authors: Alessio Pollarolo, Tae H. Jeong, Samuel Paul Benz, Horst Rogalla
Abstract: In 2010, NIST measured the Boltzmann constant k with an electronic technique that measured the Johnson noise of a 100 Ω resistor at the triple point of water (TPW) and used a voltage waveform synthesized with a quantized voltage noise source (QV ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911711

60. 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



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