NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
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.
J P. Burke, S T. Chu, Garnett W. Bryant, Carl J. Williams, P S. Julience
We theoretically investigate three approaches to trapping atoms above linear integrated optical waveguides. A two-color scheme balances the decaying evanescent
E Landree, Terrence J. Jach, D Brady, A. Karamcheti, J Canterbury, W Chism, A C. Diebold
To achieve the future goals for logic device dielectric film thickness and composition metrology, a set of well-characterized calibration reference material
Load cells for use in legal metrology issues are evaluated in accordance with the National Type Evaluation Program (NTEP) and the International Organization of
Many solutions to the problem of estimating the consensus mean from the results of multiple methods or laboratories have been proposed. In a Bayesian analysis
An integrating sphere simulation program, previously developed for the realization of the luminous flux unit at NIST, has been utilized to analyze spatial
Bradley N. Damazo, M Stephens, Johannes A. Soons, M A. Donmez
Electric Power Research Institute (EPRI) research and testing, conducted over many years, has indicated that variations in electric power quality can negatively
The emergence of Bluetooth devices operating in the same 2.4 GHz ISM frequency band as existing Wireless Local Area Network devices implementing the IEEE 802.11
We discuss efforts that have been made to help establish-in practice-a greater uniformity of nomenclature used for various terms in radiometry as well as
Increasing commercial, scientific, and technical applications involving ultraviolet (UV) radiation has led to the demand for improved understanding of the
Cryptography offers powerful techniques for data protection in classical communications applications. Claims are often made that some new technology will enable
This paper describes a program designed to derive from fundamental molecular and transition state properties rate constants that are used for the simulation of
This study considers the situation of two isothermal rooms linked to one another via an opening of varying size. Air and a neutrally buoyant contaminant are
The National Integrated Ballistics Information Network (NIBIN) is currently under development by the Bureau of Alcohol, Tobacco and Firearms (ATF) and the
We discuss the text-independent data supplied for the 2001: A Speaker Odyssey evaluation track. We cover the data creation and selection process, and we present
We report measurements of heat transfer coefficients of flowing supercritical carbon dioxide (7.38 MPa critical pressure, 31.1 degrees C critical temperature)
Concerns about maintaining optimum operating conditions for central plants in order to minimize energy usage and cost have highlighted the need for accurate
The National Integrated Ballistics Information Network (NIBIN) is currently under development by the Bureau of Alcohol, Tobacco and Firearms (ATF) and the
Gery R. Stafford, Thomas P. Moffat, V D. Jovic, David R. Kelley, John E. Bonevich, Daniel Josell, Mark D. Vaudin, N G. Armstrong, W H. Huber, A Stanishevsky
The electrochemical behavior of copper in copper sulfate - sulfuric acid, containing various combinations of NaCl, sodium 3 mercapto-1 propanesulfonate (MPSA)