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 51626 - 51650 of 74337

The Proving Ring

January 1, 1999
Author(s)
Simone L. Yaniv
In this document the history of the proving ring is given. The forces that led to its invention in 1927 at the National Bureau of Standards is described; force concepts are given; reasons why force measurements are important discussed.

The Rotational Spectrum of Ar-SiH 4 and Ar--SiD 4

January 1, 1999
Author(s)
Y Kawashima, R D. Suenram, Gerald T. Fraser, Francis J. Lovas, Katsuya Hirota
Microwave spectra of Ar-- 28SiH 4, Ar-- 29SiH 4, Ar-- 30SiH 4, and Ar-- 28SiD 4 have been recorded using a pulsed-molecular-beam Fourier-transform microwave spectrometer. The K = 0 and K = 1 components of the J=3

Thermal Expansion of Morphologically Textured Short-Fiber Composites

January 1, 1999
Author(s)
Martin Dunn, H M. Ledbetter, Z Li
We studied, both experimentally and theoretically, the thermoelastic response of short-fiber composites with a preferred orientation of the short fibers, i.e., a morphological texture. Our theoretical efforts are general, being applicable to any composite

Tip Characterization for Dimensional Nanometrology

January 1, 1999
Author(s)
John S. Villarrubia
Technological trends are increasingly requiring dimensional metrology at size scales below a micrometer. Scanning probe microscopy has unique advantages in this size regime, but width and roughness measurements must be corrected for imaging artifacts. This

Tomographic Reconstruction of an Integrated Circuit Interconnect

January 1, 1999
Author(s)
Zachary H. Levine, A R. Kalukin, S P. Frigo, I McNulty, M Kuhn
An Al-W-silica integrated circuit interconnect sample was thinned to several micro υ and scanned across a 200 nm focal spot of a Fresnel zone plate operating at photon energy of 1573 eV. The experiment was performed on beamline 2-ID-B of the Advanced
Displaying 51626 - 51650 of 74337
Was this page helpful?