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 51126 - 51150 of 74523

Fine Packet Size Tuning With AutoLink

February 9, 1999
Author(s)
Martial Michel, J E. Devaney
Using MPI to work with composed data-types, or data-types using pointers, is not a built-in operation. AutoMap and AutoLink are two tools that provide those functionalities to the MPI library, as a source-to-source compiler and as a subset of functions on

Composite Filter for VanderLugt Correlator

February 4, 1999
Author(s)
Craig I. Watson, Charles L. Wilson, E G. Paek, Patrick J. Grother
This paper will examines the use of composite filters for improving the effectiveness of a Vanderlugt correlator when used for fingerprint identification. A digital simulation, which accounts for noise sources in the optical setup, is used to design and

A Molecular Dynamics Study of a Reversed-Phase Liquid Chromatography Model

February 1, 1999
Author(s)
J T. Slusher, Raymond D. Mountain
We describe a molecular dynamics simulation study of a model of the reverse-phase chromatographic system. The model consists of a slab of aqueous solvent sandwiched between two walls having attached C 8 hydrocarbon chains at a surface coverage of 5.09 mol

A Thermodynamic Investigation of Some Reactions Involving Prephenic Acid

February 1, 1999
Author(s)
N Kishore, Marcia J. Holden, Yadu D. Tewari, Robert N. Goldberg
Calorimetric enthalpies of reaction have been measured for the following enzyme-catalyzed reactions at the temperature 298.15 Kprephenate(aq) = phenylpyruvate(aq) + H 20(l) + carbon dioxide(aq), prephenate(aq) + NAD ox(aq) = 4-hydroxyphenylpyruvate(aq) +

Benchmark Development for the Evaluation of Visualization for Data Mining

February 1, 1999
Author(s)
Sharon J. Laskowski, Georges Grinstein, Paul Hoffman, R Pickett
New sets of powerful data visualization tools have appeared in the marketplace and in the research community. This, combined with readily available computer memory, speed, and graphics capabilities, makes it possible to explore larger and larger data sets

Coherent Splitting of Bose-Einstein Condensed Atoms With Optically Induced Bragg Diffraction

February 1, 1999
Author(s)
M M. Kozuma, Lu Deng, Edward W. Hagley, J Wen, R Lutwak, Kristian Helmerson, S L. Rolston, William D. Phillips
We exposed Bose-Einstein condensed sodium atoms to a traveling periodic optical potential and observed coherent splitting of the condensate due to Bragg diffraction. Using the momentum selectivity of the scattering, we were able to separate a component

Combustion Experiments on STS-83 and STS-94: The Crew's Perspective

February 1, 1999
Author(s)
Gregory T. Linteris, J. E. Voss, R. Crouch
Despite years of planning and hundreds of drop-tower tests in preparation, the combustion experiments aboard STS-83 and STS-94 were full of surprises. Fortunately, these surprises were related to physical phenomena rather than the hardware's performance

Complex Permittivity Determination from Propagation Constant Measurements

February 1, 1999
Author(s)
Michael D. Janezic, Jeffrey A. Jargon
This letter presents a new transmission line method for measuring the complex permittivity of dielectric materials using propagation constant measurements. In contrast to previous methods, a network analyzer calibration is unnecessary since calibrated

Conference Report

February 1, 1999
Author(s)
John J. Bollinger, J Fajans
A summary of the Workshop on Non-neutral Plasmas, held in Boulder, Colorado, July 29 through August 1, 1997, is given. This workshop provided an opportunity for the exchange of results and scientific information among the diverse areas of plasma physics
Displaying 51126 - 51150 of 74523
Was this page helpful?