Skip to main content
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 49826 - 49850 of 73898

VAMAS Technical Working Area #3

March 1, 1999
Author(s)
George D. Quinn, E F. Begley
Technical Working Area #3, Ceramics of the Versailles Advanced Materials and Standards (VAMAS) project has conducted 12 projects and 12,000 experiments over 12 years. This website explains TWA3, and lists the key accomplishments and publications from the

Visualization of Bose-Einstein Condensates

March 1, 1999
Author(s)
Peter M. Ketcham, D L. Feder, W P. Reinhardt, Charles W. Clark, William L. George
A Bose-Einstein condensate (BEC) is a state of matter that exists at extremely low temperatures.BECs are currently under investigation through both numerical simulation and laboratory experiments.The visualization of data generated by numerical simulation

Design of a Digital Mathematical Library for Science, Technology and Education

February 26, 1999
Author(s)
Daniel W. Lozier, Bruce R. Miller, Bonita V. Saunders
The concept of a digital library is of proven worth because of its ability to provide dramatic capabilities that are impossible with traditional print media. We are interested in providing such capabilities for scientific, technical and educational users

Numerical Simulation of Sprinkler Performance

February 24, 1999
Author(s)
Kevin B. McGrattan, Glenn P. Forney
Rapidly, changing building designs, uses, materials, contents, fire protection and the general intermix of industrial/commercial and residential occupancies has created a need to understand the potential hazards and losses from fires and performance of

Barium Hollandite-Type Compounds Ba x Fe 2x Ti 8-2x O 16 with x= 1.143 and 1.333

February 23, 1999
Author(s)
J. M. Loezos, Terrell A. Vanderah, A R. Drews
Experimental X-ray powder diffraction patterns and refined unit cell parameters for two barium hollandite-type compounds. Ba x Fe 2x Ti 8-2x O 16 , with x = 1.143 and 1.333, are reported here. Compared to the tetragonal parent structure, both compounds

Evaluation of Passenger Train Car Materials in the Cone Calorimeter

February 23, 1999
Author(s)
Richard D. Peacock, Richard W. Bukowski, S. H. Markos
Recent advances in fire test methods and hazard analysis techniques make it useful to re-examine passenger train fire safety requirements. The use of test methods based on heat release rate (HRR), incorporated with fire modeling and hazard analysis, could

Evaluation of Passenger Train Car Materials in the Cone Calorimeter

February 23, 1999
Author(s)
Richard D. Peacock, Richard W. Bukowski, S. H. Markos
Recent advances in fire test methods and hazard analysis techniques make it useful to re-examine passenger train fire safety requirements. The use of test methods based on heat release rate (HRR), incorporated with fire modeling and hazard analysis, could

Nanofabrication via Atom Optics

February 23, 1999
Author(s)
C Bradley, W Anderson, Jabez J. McClelland, Robert Celotta
Owing to the continuing reduction in the scale of microelectronic and micromagnetic technology, new microfabrication methods are constantly being explored. This is particularly true in the case of nanostructure fabrication. Here, the phenomenon of optical

Stripline Resonator for Electromagnetic Measurements of Materials

February 23, 1999
Author(s)
Chriss A. Jones, Y. Kantor, John H. Grosvenor Jr, Michael D. Janezic
A stripline resonator was used to measure the relative dielectric and magnetic properties of materials in the frequency range from 150 MHz to 2 GHz. Measurement accuracy relates strongly to the dimensions of the resonator. Consequently, equations used in

High-speed > 90 % quantum-efficiency p-i-n photodiodes with a resonance wavelength adjustable in the 795-835 range

February 22, 1999
Author(s)
E. Vzbay, I. Kimukin, N. Biyikli, O. Ayt|r, M. Gvkkavas, G. Ulu, M. S. {Umlat}nl{umlat}, Richard Mirin, Kristine A. Bertness, David H. Christensen
We report GaAs/AlGaAs-based high-speed, high-efficiency, resonant cavity enhanced p-i-n photodiodes. The devices were fabricated by using a microwave-compatible fabrication process. By using a postprocess recess etch, we tuned the resonance wavelength from

How to Configure Linux for ATM Networks

February 22, 1999
Author(s)
Wayne J. Salamon
This article describes how to configure a personal computer (PC) running the Linux operating system, and an ATM switch, to build an ATM network. Information is given on obtaining the ATM software for Linux, and how to configure the software and the PC to

Property-Performance Studies of SnO 2 Sensing Films Using Micromachined Arrays

February 22, 1999
Author(s)
R M. Walton, Richard E. Cavicchi, Stephen Semancik
The microstructure and composition of sensing materials profoundly affect the performance of solid state gas sensors. We report property/performance relationships of conductometric gas sensing films deposited on micromachined devices called microhotplates

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
Displaying 49826 - 49850 of 73898