An official website of the United States government
Here’s how you know
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.
The dielectric constant of the embedded capacitance materials was measured in the frequency range from 100 Hz to 5 GHz. The testing included evaluation of the
Theodore D. Doiron, Tsai H. Hong, John R. Stoup, Marilyn N. Abrams
Video cameras are increasingly used to make dimensional measurements. Many of these systems use interpolation of the pixel data, with some systems claiming to
This work documents the first part of a two-part study about the application of nano-tips to critical dimension (CD) scanning electron microscopes used in
To enable nationwide and worldwide ballistics measurement traceability and unification, the National Institute of Standards and Technology (NIST) developed
Jun-Feng Song, Theodore V. Vorburger, Alim A. Fatah
In April 1998, two prototype standard bullets were developed at the National Institute of Standards and Technology (NIST). In October 1999, prototype standard
D Hawking, Ellen M. Voorhees, Nick Craswell, Peter Bailey
The TREC-8 Web Track defined ad hoc retrieval tasks over a 100 gigabyte collection of spidered Web documents (Large Web Task) and a selected 2 gigabyte subset
This report is an introduction to the work of the TREC-8 Interactive Track with its goal of investigating interactive information retrieval by examining the
Frank S. Biancaniello, Steven P. Mates, Stephen D. Ridder, D Basak, D W. Bonnell, Jon C. Geist
Thermal spray is a materials processing technique used to deposit coatings to provide improved wear, corrosion, and/or thermal protection for engineering
The objective of the Continuous Wave (CW) Laser Radiometry project is to develop measurement methods and standards for characterizing laser sources and
We have developed a new technology to reduce the cost of Braille-based information accessibility. Millions of blind and visually impaired people in the US (and
The National Institute of Justice (NIJ) standard for walk-through metal detectors for use in concealed weapon detection was written in 1974. The NIJ standard
This document, NIJ Standard-0602.01, Hand-Held Metal Detectors for Use in Concealed Weapon and Contraband Detection, is an equipment standard developed by the
The purpose of this standard is to establish minimum performance requirements and methods of test for the stab resistance of personal body armor intended to
The purpose of this standard is to establish minimum performance requirements and test methods for the ballistic resistance of personal body armor intended to
Mary C. Brady, Carmelo Montanez-Rivera, Richard M. Rivello, Lisa J. Carnahan
An Internet language called the Extensible Markup Language (XML) is rapidly becoming one of the most popular languages in the world. XML is being incorporated
The first fully operational, automatic, electronic computer in the United States was built at the National Bureau of Standards. The Standards Electronic
Yong-Ki Kim, Karl Irikura, M E. Rudd, D Zucker, M A. Zucker, J S. Coursey, Karen J. Olsen, G G. Wiersma
This is a database primarily of total ionization cross sections of molecules by electron impact. The database also includes cross sections for a small number of
Sirens are devices that produce warning sounds. Siren sounds are intended to help alert the public that an emergency vehicle (e.g., police car, ambulance, fire
This document surveys the field of contraband drug detection, with emphasis on different types of drug detection methods available and current commercial
The CIO Cyber Security Notes will be published six times a year and distributed to the senior-level CIOs and senior-level executives within the Federal
The objective of this standard is to establish minimum requirements for color test reagent/kits to detect drugs. It is applicable to field testing kits that
This project is developing a generic Genetic Programming system that is inherently parallel. Genetic Programming uses Darwinian selection and reproduction to
A lattice statics Green's function method is described for modeling an edge dislocation in a crystal lattice. The edge dislocation is created by intoducing a
The TREC-8 Question Answering track was the first large-scale evaluation of systems that return answers, as opposed to lists of documents, in response to a
A public/private partnership involving multiple federal agencies and private industry was assembled to develop a comprehensive fire investigation training tool
A C++ object class library has been developed to distribute models for polarized light scatteringfrom surfaces. It is the intent of this library to allow