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 39926 - 39950 of 74343

Interoperable Dynamic Tactical Information for Public Safety Officials

January 23, 2004
Author(s)
William D. Davis, D D. Evans
Currently, fire department notification of a building fire comes from either a building fire alarm system monitoring service or a 911 call. The emergency responders know very little about the situation until they arrive on the scene. Information for their

NCWM Publication 15, Interim Meeting Agenda - January 2004

January 21, 2004
Author(s)
Linda D. Crown
This is the agenda for the four Standing Committees of the National Conference on Weights and Measures. The meeting will be held at the Hyatt Regency Bethesda, Bethesda, MD, January 25-28, 2004.

Practical electron-tunneling refrigerator

January 21, 2004
Author(s)
Anna Clark, Anthony Williams, Steve Ruggiero, Marcel L. van den Berg, Joel N. Ullom
We demonstrate a thin-film, solid-state refrigerator based on the removal of hot electrons from a metal by quantum-mechanical tunneling. We have halved the electronic temperature in a macroscopic film from 260 mK to near 130 mK. Both the cooling power and

Progress in the Development of Combustion Databases for Liquid Fuels

January 21, 2004
Author(s)
Wing Tsang
This paper describes the present situation regarding chemical kinetic databases for the simulation of the combustion of liquid fuels. Past work in the area is summarized. Much is known about the, reactions of the smaller fragments from combustion process

Quantitative Characterization of DNA Films by X-ray photoelectron spectroscopy

January 20, 2004
Author(s)
D Y. Petrovykh, H Y. Kimura-Suda, Michael J. Tarlov, L J. Whitman
Self-assembled films of thiolated poly(dT)25 single-stranded DNA (ssDNA) on gold areintroduced as a model system for quantitative characterization of DNA films by XPS. Weevaluate the applicability of a simple substrate-overlayer model for data analysis

Adiabatic Loading of Bosons Into Optical Lattices

January 16, 2004
Author(s)
P B. Blakie, James V. Porto
We calculate the entropy-temperature curves for non-interacting bosons in a 3D optical lattice and a 2D lattice with transverse harmonic confinement for ranges of depths and filling factors relevant to current experiments. These curves predict regimes

Direct-Current Induced Dynamics in Co 90 Fe 10 /Ni 80 Fe 20 Point Contacts

January 16, 2004
Author(s)
William Rippard, Matthew Pufall, Shehzaad F. Kaka, Stephen E. Russek, Thomas J. Silva
We have directly measured coherent high-frequency magnetization dynamics in ferromagnetic films induced by a spin-polarized dc current. The precision frequency can be tuned over a range of several gigahertz by varying the applied current. The frequencies

Approximating Limit Cycles of a Van der Pol Equation with Delay

January 15, 2004
Author(s)
David E. Gilsinn
In this paper a theorem of Stokes is used to establish the existence of a periodic solution of a Van der Pol equation with fixed delay in the neighborhood of an approximating solution that satisfies a certain noncriticality condition.

Using Nonoscillatory Splines to Model Urban Environments

January 15, 2004
Author(s)
David E. Gilsinn, Marjorie A. McClain, Christoph J. Witzgall
In this paper we introduce the notion of Lavery splines and examine their properties in the univariate case. We also discuss some of the details involved with computing these splines on irregularly spaced data.

NIST-NPL Interlaboratory Pulse Measurement Comparison

January 13, 2004
Author(s)
Nicholas Paulter, A. G. Smith, Donald R. Larson, T. M. Souders, A. G. Roddie
A comparison of the pulse parameter values obtained from the pulse measurement services of the National Institute of Standards and Technology, USA and the National Physical Laboratory, UK was performed. The comparison was based on the pulse parameters of

Bayesian Analysis of Ceria Nanoparticles From Line Profile Data

January 12, 2004
Author(s)
N G. Armstrong, A Dowd, James Cline, W Kalceff
A Bayesian/Maximum entropy (MaxEnt) method is applied to quantify the broadening of X-ray line profiles in terms of the nanocrystallite size effects in ceria. The analysis is in general agreement with transmission electron microscopy results, while

The NIST 3 Megawatt Quantitative Heat Release Rate Facility

January 12, 2004
Author(s)
Rodney Bryant, Thomas J. Ohlemiller, Erik Johnsson, Anthony Hamins, B S. Grove, William Guthrie, Alexander Maranghides
The 3 Megawatt Heat Release Rate Facility was developed at NIST as a first step toward having broad capabilities for making quantitative large scale fire measurements. Such capabilities will be used at NIST to validate fire models and to develop sub-grid

From Databooks to Online Dictionaries and Parts Catalogues

January 5, 2004
Author(s)
John V. Messina, James A. St Pierre
This power point presentation was presented at the 4th Annual ECCMA Membership Conference at Lehigh University on October 22nd, 2003 during a panel presentation on competitive sourcing, parts interoperability, and inventory visibility in public sector
Displaying 39926 - 39950 of 74343
Was this page helpful?