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 49001 - 49025 of 74220

NIST FY 2000 SRM Project Plans

December 1, 1999
Author(s)
N M. Trahey, R J. Gettings
The SRM project plans for FY 2000 are summarized by Laboratory (OU) in the following pages of this report. (NOTE - this report can be viewed electronically by accessing the SRM Program web site, http://ts.nist.gov/srm.) The plans are grouped by funding

NIST Photometry and Colorimetry Facilities

December 1, 1999
Author(s)
Yoshihiro Ohno
Web site for public domain information and publications on NIST activities in photometry and colorimetry. Note: the copies of the NIST photometry papers are the final manuscripts and are not identical with the published versions in styles and editorial

Nose-to-Nose Response of a 20-GHz Sampling Circuit

December 1, 1999
Author(s)
Dylan F. Williams, Catherine A. Remley, Donald C. DeGroot
We use SPICE simulations to determine a response function of a two-diode 20-GHz sampling circuit. We explore the validity of the SPICE simulations in a variety of operational conditions and examine differences between the actual response of an impedance

On-Wafer Measurements of Noise Temperature

December 1, 1999
Author(s)
James P. Randa, Robert L. Billinger
The NIST Noise Project has developed the theoretical formalism and experimental methods for performing accurate noise-temperature measurements on wafer. This report summarizes the theoretical formulation and describes the design, methods, and results of

Performance Verification of Impact Machines for Testing Plastics

December 1, 1999
Author(s)
Thomas A. Siewert, D P. Vigliotti, L B. Dirling, Christopher N. McCowan
Valid comparison of impact test energies reported by various organizations and over time depends on consistent performance of impact test machines. This paper investigates the influence of various specimen and test parameters on impact energies in the I J

Phase Control of Wavepacket Dynamics Using Shaped Femtosecond

December 1, 1999
Author(s)
R Uberna, Z Amitay, R A. Loomis, S R. Leone
Coherent vibrational and rotational dynamics of the Li 2 molecule is controlled by varying the relative phases diameter} n, of the rovibrational wavepacket components, ln>3 -i(ωnt+φn). The coherent superposition is created by excitation of a set of ten

Powder Metallurgy High Nitrogen Stainless Steel

December 1, 1999
Author(s)
Frank S. Biancaniello, Rodney D. Jiggetts, Richard E. Ricker, Stephen D. Ridder
High Nitrogen Stainless Steels (HNSS) are a class of materials that possess a unique combination of outstanding strength, ductility, and corrosion properties. In this paper we report on the advantages of producing these materials via inert gas atomization

Precision Spectroscopy in He as a Test of QED

December 1, 1999
Author(s)
S Bergeson, A Balakrishnan, K G. Baldwin, Thomas B. Lucatorto, J P. Marangos, T J. McIlrath, Thomas R. O'Brian, S L. Rolston, Craig J. Sansonetti, J Wen, N Westbrook, C H. Cheng, E E. Eyler
High resolution laser-based measurements of energy levels have spurred the development and refinement of quantum electrodynamic calculations. We have extended very high resolution laser spectroscopy techniques into the vacuum ultraviolet wavelength region
Displaying 49001 - 49025 of 74220