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Displaying records 61 to 70 of 98 records.
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61. 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

62. 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

63. 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

64. Sealed Cells for the Realization of Triple Points at the National Institute of Standards and Technology
Topic: Chemical Engineering & Processing
Published: 6/24/1996
Author: W L Tew
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100327

65. Selected Thermodynamic Properties for Mixtures of R-32 (Difluoromethane), R-125 (Pentafluoroethane), R-134A (1,1,1,2-Tetrafluoroethane), R-143A (1,1,1-Trifluoroethane), R-41 (Fluoromethane), R-290 (Propane), and R-744 (Carbon Dioxide)
Series: Technical Note (NIST TN)
Report Number: 1397
Topic: Chemical Engineering & Processing
Published: 12/1/1997
Authors: C D. Holcomb, Joe W Magee, Jennifer L Scott, Stephanie L Outcalt, William Michael Haynes
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901949

66. Shear Thinning Near the Critical Point of Xenon
Topic: Chemical Engineering & Processing
Published: 4/17/2008
Authors: Robert F Berg, Michael R Moldover, M Yao, G A Zimmerli
Abstract: We measured shear thinning, a viscosity decrease ordinarily associated with complex liquids, near the critical point of xenon. The data span the range of reduced shear rates: 0.001 < {gamma}{tau} < 700, where {gamma}{tau} is the shear rate scal ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830987

67. Simultaneous Measurement of Viscosity and Structure for Rod-Like Micelle Solutions
Topic: Chemical Engineering & Processing
Published: 1/1/1998
Authors: M Y Lin, Howard J. Hanley, Chris D Muzny, G C. Straty
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901975

68. Standard Molar Enthalpies of Formation of Alloys in the Pseudobinary System Zr(Al^dx^Co^d1-x^)^d2^ at the Temperature 298.15 K
Topic: Chemical Engineering & Processing
Published: 9/26/1997
Authors: R Klein, P A G O'Hare, I Jacob
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901964

69. Standard Photoacoustic Spectrometer: Model and Validation using O2 A-Band Spectra
Topic: Chemical Engineering & Processing
Published: 6/30/2010
Authors: Keith A Gillis, Daniel K. Havey, Joseph Terence Hodges
Abstract: We model and measure the absolute response of an intensity-modulated photoacoustic spectrometer comprising a 10 cm long resonator and having a {I}Q{/I}-factor of approximately 30. We present a detailed theoretical analysis of the system and predict ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904841

70. State-of-the-Art Comparability of Corrected Emission Spectra-Part II: Peer-toPeer Assessment of Calibration Performance Using Spectral Fluorescence Standards
Topic: Chemical Engineering & Processing
Published: 2/28/2012
Authors: Paul C DeRose, Joanne C Zwinkels, Bernd Ebert
Abstract: The tremendous growth of fluorescence applications in the life and material sciences has proceeded largely without sufficient concern for the reliability and uncertainties related to the characterization and performance validation of fluorescence ins ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907887



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