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Displaying records 61 to 70 of 109 records.
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61. Present Estimates of the Differences Between Thermodynamic Temperatures and the ITS-90
Topic: Chemical Engineering & Processing
Published: 1/29/2011
Authors: Joachim Fischer, M. DePodesta, K. D. Hill, Michael R Moldover, Laurent Pitre, R. Rusby, Peter Steur, Osamu Tamura, R. White, L. Wolber
Abstract: In 2005, the Consultative Committee for Thermometry (CCT) recommended the creation of a Mise en pratique for the definition of the kelvin and envisioned that future versions of the Mise en pratique would recommend values of the differences between ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905075

62. Properties for Accurate Gas Flow Measurements
Topic: Chemical Engineering & Processing
Published: 10/15/2010
Author: John D Wright
Abstract: Accurate gas properties are needed to take full advantage of the low uncertainties provided by NIST‰s Gas Flow Calibration Services. If a flowmeter user and NIST use different values for these properties (molecular mass, compressibility, density, vis ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905976

63. Radioluminescence Detector for the Flow Injection Determination of Phosphorous as Vanadomolybdophoric Acid
Topic: Chemical Engineering & Processing
Published: 12/1/1999
Authors: A M Leach, D L Burden, G M Hieftje
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100590

64. Rate Constant for the Reaction of OH Radicals with Dichloromethane
Topic: Chemical Engineering & Processing
Published: 11/1/1997
Authors: E Villenave, Vladimir L Orkin, Robert Elliott Huie, Michael John Kurylo III
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902024

65. Rate Constants for the Reactions of OH with HFC-245cb (CH^d3^CF^d2^CF^d3^) and Some Fluoroalkenes CH^d2^CHCF^d3^, CH^d2^CFCF^d3^, CF^d2^CFCF^d3^, and CF^d2^CF^d2^)
Topic: Chemical Engineering & Processing
Published: 11/27/1997
Authors: Vladimir L Orkin, Robert Elliott Huie, Michael John Kurylo III
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901985

66. Recent advances in vacuum sciences and applications
Topic: Chemical Engineering & Processing
Published: 4/9/2014
Authors: Miran Mozetic, Kostya Ostrikov, David Ruzic, Davide Curreli, Uros Cvelbar, Alenka Vesel, Gregor Primc, Manfred Leisch, Karl Jousten, Oleg Malyshev, Jay H Hendricks, laszlo Kover, Alberto Tagliaferro, O Conde, Antonio Silvestre, J Giapintzakis, M Buljan, N Radi?, G Dra?i?, S Bernstorff, H Biederman, O Kyli?n, J Hanu?, S Milo?evi?, A Galtayries, P Dietrich, W Unger, K Stana-Kleinschek, A Drmota?Petri?, J J Pireaux, J W Rogers, M Anderle, M Lehocky, V Sedlarik
Abstract: Recent advances in vacuum sciences and applications are reviewed. Novel optical interferometer cavity devices enable pressure measurements with ppm accuracy. Innovative dynamic vacuum standard allows for pressure measurements with temporal resolution ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914906

67. Reference Viscosities of H^d2^, CH^d4^, Ar and Xe at Low Densities
Topic: Chemical Engineering & Processing
Published: 8/1/2007
Authors: E May, Robert F Berg, Michael R Moldover
Abstract: We determined the zero-density viscosity eta of hydrogen, methane and argon in the temperature range 200 K to 400 K, with standard uncertainties of 0.084 % for hydrogen and argon and 0.096 % for methane. These uncertainties are dominated by the unce ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830996

68. Reference measurements of Hydrogen's Dielectric Permittivity
Topic: Chemical Engineering & Processing
Published: 8/10/2009
Authors: James W Schmidt, Michael R Moldover, Eric F. May
Abstract: We used a quasi-spherical cavity resonator to measure the relative dielectric permittivity {epsilon}^dr^ of H^d2^ at frequencies from 2.4 GHz to 7.3 GHz, at pressures up to 6.5 MPa, and at the temperatures 273 K and 293 K. The resonator was calibrat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901652

69. Relating Complex Fluid Composition and Thermophysical Properties with the Advanced Distillation Curve Approach
Topic: Chemical Engineering & Processing
Published: 3/17/2010
Authors: Thomas J Bruno, Lisa S. Ott, Tara M Lovestead, Marcia L Huber
Abstract: Complex fluids have long posed a significant challenge in our ability to characterize and model fluid properties. Here, we consider complex fluids to be mixtures with many components that can differ significantly in polarity and polarizability. The ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903208

70. Relaxation Effects in Small Critical Nozzles
Topic: Chemical Engineering & Processing
Published: 1/1/2006
Authors: Aaron N Johnson, C L Merkle, Michael R Moldover, John D Wright
Abstract: We computed the flow of four gases (He, N^d2^, CO^d2^, and SF^d^6) through a critical nozzle by augmenting traditional computational fluid dynamics (CFD) with a rate equation that accounts for {tau}^drelax^, a species-dependent relaxation time that c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830846



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