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Displaying 49351 - 49375 of 73832

Thermodynamic Properties of Vanadium Silicides. I. Standard Molar Enthalpy of Formation d f H( of Vanadium Disilicide VSi 2 at the Temperature of 298.15K

December 1, 1999

Author(s)

P A. O'Hare, K Watling, G A. Hope

Thermodynamic Properties of Vanadium Silicides. II. Standard Molar Enthalpy of Formation d f Hm 298.15K and Reassessed Thermodynamic Porperties of Trivanadium Monosilicide V 3 Si

December 1, 1999

Author(s)

P A. O'Hare, K Watling, G A. Hope

Thermodynamic Studies of Enzyme ?}Catalyzed Reactions

December 1, 1999

Author(s)

R N. Goldberg, N Kishore, Yadu D. Tewari

Thermodynamic Temperatures of the Triple Points of Mercury and Gallium and in the Interval 217 to 303 K

December 1, 1999

Author(s)

Michael R. Moldover, S J. Boyes, Christopher W. Meyer, A R. Goodwin

Thermodynamics of Silicon Nitride. I. Standard Molar Enthalpy of Formation d f H m 0 at the Temperature 298.15 K of a-Si 3 N 4 and e-Si 3 N 4

December 1, 1999

Author(s)

P A. O'Hare, I. Tomaszkiewicz, C. M. Beck II, H. J. Seifert

Thermophysical Properties of Gaseous CF 4 and C 2 F 6 from Speed of Sound Measurements

December 1, 1999

Author(s)

John J. Hurly

Time-and-Polarization-Resolved Acoustic Microscopy of Surface and Subsurface Cracks

December 1, 1999

Author(s)

D Xiang, Gerald V. Blessing, Nelson N. Hsu

Time-and-polarization-resolved acoustic microscopy with an improved-spatial-resolution line-focus transducer of simply reduced active element width is applied to characterize surface and subsurface cracks. From acoustic images obtained from scanning cracks

Transport Properties of Refrigerants R32, R125, R134a, and R125 + R32 Mixtures In and Beyond the Critical Region

December 1, 1999

Author(s)

S B. Kiselev, Richard A. Perkins, Marcia L. Huber

Ultrasensitive Frequency-Modulation Spectroscopy Enhanced by a High-Finesse Optical Cavity: Theory and Application to Overton Transitions of C 2 H 2 and C 2 HD

December 1, 1999

Author(s)

L -. Ma, J Ye, John L. Hall

The sensitivity of FM spectroscopy can be dramatically enhanced by location of the sample in a high-finesse cavity, for example, -5 orders of magnitude in this study. To avoid conversion of laser frequency noise into amplitude noise by the cavity, we

Ultrasonic Nonlinearity Parameter in Precipitate-Hardened Steels

December 1, 1999

Author(s)

Donna C. Hurley, Davor Balzar, P T. Purtscher

We have experimentally investigated a series of steel specimens containing copper-rich precipitates. The precipitate microstructure depended on the final aging treatment (time and temperature), which in turn affected the specimen hardness. We performed

Understanding Reversed-Phase Liquid Chromatography RPLC through Solid-State NMR Spectroscopy

December 1, 1999

Author(s)

M. Pursch, Lane C. Sander, K. Albert

Universal Crossover Function and Non-Universal Order-Parameter Profiles for Critical Adsorption

December 1, 1999

Author(s)

S B. Kiselev, L L. Lue, M Y. Belyakov

Use of SFC for the Separation of Enantiomers in Drug Formulations

December 1, 1999

Author(s)

Karen W. Phinney

Using Correlated Photons to Measure Polarization Mode Dispersion with Attosecond Resolution

December 1, 1999

Author(s)

Alan L. Migdall, G Jaeger, A V. Sergienko

We describe the status of a highly stable dual scale technique for measuring polarization mode dispersion (PMD) using two-photons produced via parametric down conversion. The method uses a two-photon interference to observe relative propagation times of

Validation of the Conversion to New Instrumentation and the Modernization of Isotope Dilution Mass Spectrometric Definitive Methods for Organic Serum Analytes

December 1, 1999

Author(s)

P M. Ellerbe, C Phinney, Lorna T. Sniegoski, Michael J. Welch

Value Assignment of Retinol, Retinyl Palmitate, Tocopherol, and Carotenoid Concentrations in Standard Reference Material 2383 Baby Food Composite

December 1, 1999

Author(s)

Katherine E. Sharpless, M Arce-osuna, Jeanice M. Brown Thomas, L. M. Gill

Vapor-Liquid Critical Surface of Ternary Difluoromethane + Pentafluoroethane + 1,1,1,2-Trifluoroethane R-32/125/134a Mixtures

December 1, 1999

Author(s)

Y Higashi

Vapor-Liquid Equilibria for the Binary Difluoromethane R-32 + Propane R-290 Mixture

December 1, 1999

Author(s)

Y Higashi

Vibrational Analysis of the Dioctahedral Mica: 2M1 Muscovite

December 1, 1999

Author(s)

D A. Mckeown, M I. Bell, E S. Etz

Vibrational Spectra of Molecular Ions Isolated in Solid Neon. XV. Infrared Spectroscopic Evidence for NeHF+ and HFFH+

December 1, 1999

Author(s)

Catherine L. Lugez, M E. Jacox, Russell D. Johnson III

Voids and Clusters in Expanded Water|

December 1, 1999

Author(s)

Raymond D. Mountain

DVD '99 Workshop: Standards, Applications, and Technology

November 30, 1999

Author(s)

V R. Mccrary, J H. Costello

¿¿¿Proceedings of DVD ¿¿¿99 Workshop: Standards, Applications, and Technology including the speeches of the keynote speakers.

Report on the NIST Java TM AES Candidate Algorithm Analysis

November 25, 1999

Author(s)

James F. Dray Jr.

NIST solicited candidate algorithms for the Advanced Encryption Standard in a Federal Register Announcement dated September 12, 1997. Fifteen candidates were submitted, and NIST has subsequently worked with a worldwide community of cryptanalysts and

Fast and Accurate Low-Coherence Interferometric Measurements of Fiber Bragg Grating Dispersion and Reflectance

November 22, 1999

Author(s)

Shellee D. Dyer, Kent B. Rochford, Allen Rose

We demonstrate fast and accurate measurements of fiber Bragg grating dispersion and spectral reflectance using low-coherence interferometry.

Resolution Requirements for Scalar Dissipation Measurements in Turbulent Jets and Flames

November 21, 1999

Author(s)

William M. Pitts

Scalar dissipation, defined as twice the product of the molecular diffusion coefficient and the Iocal gradient of the mixture fraction do&d with itself, characterizes molecular mixing rates in turbulent flows and has a central role in turbulent combustion

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