U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 49401 - 49425 of 74141

Using Failure History to Improve Reliability in Information Technology

January 1, 2000
Author(s)
D Wallace
Achieving 100 % software reliability may seem an unreasonable goal. Software developers and consumers of many software products are largely unsure about the reliability of their product or purchase. Today, many opportunities exist for some assurance of

Video Quality Experts Group: Current Results and Future Directions

January 1, 2000
Author(s)
A. M. Rohaly, P. Corriveau, John M. Libert, A. Webster, V. Baroncini, J. Beerends, J. L. Blin, L. Contin, T. Hamada, Diane Harrison, A. Hekstra, Jack Lubin, Y. Nishida, R. Ishihara, J Pearson, A. F. Pessoa, N. Pickford, A. Schertz, M. Visca, A. B. Watson, S. Winkler
Subjective assessment methods have been used reliably for many years to evaluate video quality. They continue to provide the most reliable assessments compared to objective methods. Some issues that arise with subjective assessment include the cost of

Video Quality Experts Group: The Quest for Valid Objective Methods

January 1, 2000
Author(s)
P. Corriveau, A. Webster, A. M. Rohaly, John M. Libert
Subjective assessment methods have been used reliably for many years to evaluate video quality. They continue to provide the most reliable assessments compared to objective methods. Some issues that arise with subjective assessment include the cost of

X-ray Scattering and Fluorescence From Atoms and Molecules

January 1, 2000
Author(s)
S H. Southworth, L Young, E P. Kanter, Thomas W. LeBrun
Fundamental understanding of x-ray interactions with atoms and molecules provides a basis for applying x-ray methods to complex materials, such as structural determinations by x-ray diffraction and extended x-ray absorption fine structure. Compton

Coplanar Transmission Lines with Meandering Center Conductors in Y-Ba-Cu-O/Au Bilayers

December 31, 1999
Author(s)
C Weber, Ronald H. Ono, James Booth, Leila R. Vale, Samuel Benz, A. M. Klushin, H. Kohlstedt, C. Buchal, R. Semerad
We have investigated both conventional and meandering coplanar microwave transmission lines patterned in Y-Ba-Cu-O/Au bilayers on yttria-stablized zirconia and sapphire substrates. Within the meandering waveguides, the gentre conductor was deformed from a

Far-Infrared Transmittance and Reflectance of YBa 2 Cu 3 O 7-x Films on Si Substrates

December 31, 1999
Author(s)
A. R. Kumar, Nien F. Zhang, V. A. Boychev, D. B. Tanner, Leila R. Vale, David A. Rudman
The transmittance and reflectance of superconductive YBa 2Cu 3O 7-γ (YBCO) thin films deposited on Si substrates have been measured in the far-infrared frequency region from 10 to 100 cmu-1^ (wavelength from 1000 to 100 micro υ) at temperatures between 10

First Astronomical Application of a Cryogenic Transition Edge Sensor Spectrophotometer

December 31, 1999
Author(s)
R. W. Romani, Aaron J. Miller, B. Cabrera, Enectali Figueroa-Feliciano, Sae Woo Nam
We report on the first astronomical observations with a photon-counting pixel detector that provides arrival time ((delta)R, less then or equal to} 0.15 eV) resolved measurements from the near-IR through the near UV. Our test Observations were performed by

Large-Area YBa 2 Cu 3 O 7-x Bolometers on Si Substrates

December 31, 1999
Author(s)
Leila R. Vale, Ronald H. Ono, Donald G. McDonald, Robert J. Phelan
We have developed YBa 2Cu 3O 7-x (YBCO) thermometers for large-area (4 mm x 4 mm) electrical substitution bolometers. We passivated the YBCO with a thin Au layer and demonstrated a noise equivalent temperature of 4 nK Hz -1/2. We then used a resistor layer
Displaying 49401 - 49425 of 74141
Was this page helpful?