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NIST Authors in Bold

Displaying 6101 - 6125 of 7113

Coping with Overload on the Network Time Protocol Public Servers

December 7, 2004
Author(s)
David Mills, Judah Levine, Richard Schmidt, David Plonka
The public time servers operated by USNO and NIST provide time synchronization, directly or indirectly, to millions of Internet computers today. The load in the form of processor cycles and network traffic has doubled in the last two years and could

Differential Cross Sections for Elastic Scattering of Electrons by Atoms and Solids

July 1, 2004
Author(s)
Aleksander Jablonski, Francesc Salvat, Cedric J. Powell
Differential cross sections (DCSs) for elastic scattering of electrons by neutral atoms are extensively used in studies of electron transport in solids and liquids. A new NIST database has recently been released with DCSs calculated from a relativistic

Adaptive Characterization of Jitter Noise in Sampled High-Speed Signals

October 1, 2003
Author(s)
Kevin J. Coakley, Chih-Ming Wang, Paul D. Hale, Tracy S. Clement
We estimate the root-mean-square (RMS) value of timing jitter noise in simulated signals similar to measured high-speed sampled signals. The simulated signals are contaminated by additive noise, timing jitter noise, and time shift errors. Before estimating

A Semantic Web Service Framework to Intelligent Distributed Manufacturing

August 1, 2003
Author(s)
Boonserm Kulvatunyou, Hyunbo Cho, Y J. Son
As markets become unexpectedly turbulent with a shortened product life cycle and a power shift towards buyers, the need for methods to rapidly and cost-effectively develop products, production facilities and supporting software is becoming urgent. The use

Studies of Fingerprint Matching Using the NIST Verification Test Bed (VTB)

July 1, 2003
Author(s)
Charles L. Wilson, Craig I. Watson, Michael D. Garris, R. A. Hicklin
A series of fingerprint matching studies have been conducted on an experimental laboratory system called the Verification Test Bed (VTB). The VTB is a collection of commercial off the shelf (COTS) computer hardware, an open-source operating system, and a

Report of Test on Experimental Conditions and Preliminary Results for the International Fire Model Benchmarking And Validation Exercise #3

June 1, 2003
Author(s)
Anthony P. Hamins, Alexander Maranghides, Erik L. Johnsson, Michelle K. Donnelly, Jiann C. Yang, George W. Mulholland
As part of its Fire Risk Research Program, the NRC (Nuclear regulatory Commission) and NIST (National Institute of Standards and Technology) are participating in an International Collaborative Fire Model Project (ICFMP) to assess and validate fire computer

Structure and Dimensions of PAMAM/PEG Dendrimer-Star Polymers

March 1, 2003
Author(s)
R C. Hedden, Barry J. Bauer
Dendrimer-star polymers are prepared by grafting monofunctional poly(ethylene glycol) (PEG) chains of low polydispersity onto the terminal groups of poly(amidoamine) (PAMAM) dendrimers. A novel gel permeation chromatography technique is used to calculate

Reconstructing Images of Bar Codes for Construction Site Object Recognition

September 1, 2002
Author(s)
David E. Gilsinn, Geraldine S. Cheok, Dianne M. O'Leary
This paper discusses a general approach to reconstructing ground truth intensity images of bar codes that have been distorted by LADARoptics. The first part of this paper describes the experimental data collection of several bar code images along with

Standards for Optical Imaging Systems in Forensic Laboratories

August 1, 2002
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton, Li Ma, Susan M. Ballou
NIST RM (Reverence Material) 8240/2350 standard bullet and casing project is currently ongoing to support the National Integrated Ballistics Information Network (NIBIN) in the US. The original bullet signatures were traced on six master bullets from

A Hierarchical World Model for an Autonomous Scout Vehicle

April 5, 2002
Author(s)
Stephen B. Balakirsky, Tommy Chang, Tsai H. Hong, Elena R. Messina, Michael O. Shneier
This paper describes a world model that combines a variety of sensed inputs and a priori information and is used to generate on-road and off-road autonomous driving behaviors. The system is designed in accordance with the principles of the 4D/RCS

Quantum Encounters of the Cold Kind

March 1, 2002
Author(s)
K Burnett, Paul S. Julienne, Paul D. Lett, Eite Tiesinga, Carl J. Williams
… may lie in quantum information processing or quantum computing. …

IT Security for Industrial Control Systems

February 28, 2002
Author(s)
Joseph Falco, Frederick M. Proctor, Keith A. Stouffer, Albert J. Wavering
The National Institute of Standards and Technology (NIST) is working to improve the IT security of networked digital control systems used in industrial applications. This effort is being carried out through the Process Control Security Requirements Forum

Photometry: Sensing Light Color

September 1, 2001
Author(s)
Yoshihiro Ohno, Steven W. Brown
This article first addresses the need and importance of photometry and colorimetry for many products in our daily life- light bulbs in homes and offices; TV sets, computer monitors, headlights of cars, traffic lights, etc. Then the concepts of photometry

Comparison of FDS Model Predictions With FM/SNL Fire Test Data.

April 1, 2001
Author(s)
Frederick W. Mowrer, P A. Friday
The Fire Dynamics Simulator (FDS), a recently developed field tire model based on large eddy simulation (LES), is used to simulate seven full-scale fire tests. The fire tests were conducted in a large mechanically ventilated enclosure with dimensions of 18

Design Procedures for Structures with Supplemental Dampers

April 1, 2001
Author(s)
Fahim Sadek, Michael A. Riley
Passive energy dissipation devices are used to reduce the damage from earthquakes by absorbing a portion of the earthquake-induced energy in structures. Wide acceptance of these devices in structures will depend on the availability of simplified methods
Displaying 6101 - 6125 of 7113
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