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Displaying 48726 - 48750 of 73830

Isochoric p-rho-T Measurements for Binary Refrigerant Mixtures Containing Difluoromethane (R32), Pentafluoroethane (R125), 1,1,1,2-Tetrafluoroethane (R134a), and 1,1,1-Trifluoroethane (R143a) from 200 to 400 K at Pressures to 35 Mpa

January 1, 2000
Author(s)
Joe W. Magee, William M. Haynes
The p-p-T relationships were measured for binary refrigerant mixtures by an isochoric method with gravimetric determinations of the amount of substance. Temperatures ranged from 200 to 400 K, while pressures extended up to 35 MPa. Measurements were

Journal of Research of the National Institute of Standards and Technology

January 1, 2000
Author(s)
Dale E. Newbury, Ryna B. Marinenko
The Journal of Research of the National Institute of Standards and Technology reports NIST research and development in those disciplines of the physical and engineering sciences in which the Institute is active. These include physics, chemistry

Kilogram

January 1, 2000
Author(s)
R Deslattes

Laboratory Astrophysics and Microanalysis With NTD-Germanium-Based X-Ray Microcalorimeters

January 1, 2000
Author(s)
E Silver, H. Schnopper, Simon R. Bandler, S Murray, N. Madden, D Landis, J. Beeman, E. E. Haller, M Barbera, G Tucker, John D. Gillaspy, E Takacs, James V. Porto
With the ability to create cosmic plasma conditions in the laboratory it is possible to investigate the dependencies of key diagnostic x-ray lines on density, temperature, and excitation conditions that exist in astrophysical sources with x-ray optics and

Ladars for Construction Assessment and Update

January 1, 2000
Author(s)
Geraldine S. Cheok, William C. Stone, Robert R. Lipman, Christoph J. Witzgall
Work at the National Institute of Standards and Technology (NIST) on laser radar imaging of a construction site is described. The objective of the NIST research is to make measurements required in a construction project quicker and cheaper than current
Displaying 48726 - 48750 of 73830
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