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 12726 - 12750 of 17284

Adjustments to the NIST Realization of the ITS-90 from 5 K to 24.5561 K

May 1, 2008
Author(s)
Weston L. Tew, Christopher W. Meyer
Recent clarifications issued by the Consultative Committee on Thermometry (CCT) for the definitions of the equilibrium hydrogen (e-H2) triple points (TPs) and vapor-pressure points (VPs) have resulted in adjustments to the NIST-disseminated ITS-90 (T90) in

Embedding MPEG-7 Metadata Within a Media File Format

October 1, 2005
Author(s)
Wo L. Chang
Embedding metadata within a media file format becomes evermore popular for digital media. Traditional digital media files such as MP3 songs and JPEG photos do not carry any metadata structures to describe the media content until these file formats got

Embeding MPEG-7 Metadata Within a Media File Format

August 1, 2005
Author(s)
Wo L. Chang
Embedding metadata within a media file format becomes evermore popular for digital media. Traditional digital media files such as MP3 songs and JPEG photos do not carry any metadata structures to describe the media content until these file formats got

Comparing Mass Spectra: When Do They Match?

January 1, 2003
Author(s)
Stephen E. Stein
A common method of determining the identity of a compound is to compare its spectrum against a known standard spectrum of the same substance. Comparisons can be made based on a variety of criteria. How does an analyst know that a match has occurred when

Data-Assisted Design for Wind Loading

June 1, 2002
Author(s)
Emil Simiu, Fahim Sadek, T Whalen, S Jang, L L. Lu, S M. Diniz, A Grazini, Michael A. Riley
Current ASCE Standard provisions on wind loads for low-rise building design are based on wind tunnel tests conducted at the University of Western Ontario in the 1970's. In spite of the advances they entailed at the time, those provisions are inadequate

Fire Endurance Test of Selected Residential Floor Constructions.

May 1, 1982
Author(s)
Jin B. Fang
A series of 10 load-bearing, wood-and steel-framed residential floors was evaluated for structural fire resistance in a fire endurance furnace. Nine wood-frame and one light gauge steel-frame, protected and unprotected floor/ceiling assembles, each

Cybersecurity Framework Election Infrastructure Profile

February 1, 2024
Author(s)
Gema Howell, Mary C. Brady, Julie Snyder, David Weitzel, M. Schneider, Christina Sames, Joshua Franklin
… meant to supplement but not replace current cybersecurity standards and industry guidelines that the election …

Optical Frequency Synthesis Based on Modelocked Lasers

October 12, 2021
Author(s)
S T. Cundiff, Jun Ye, John L. Hall
The synthesis of optical frequencies from the primary cesium microwave standard has traditionally been a difficult problem due to the large difference in frequencies. Recently a dramatic advance in this field has occurred due to the introduction of the use

A system of quantities from software metrology

January 15, 2021
Author(s)
David Flater
International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC) 80000, the International System of Quantities, collects and organizes the most important physical quantities into a coherent system of quantities whose

Structural Ceramics Database Update (April 2003)

February 19, 2017
Author(s)
R G. Munro, C P. Sturrock
An update of the NIST Standard Reference Database Number 30, the Structural Ceramics Database, has been completed. This update, designated SCD Update (April 2003), increases the number of source entries by 100 citations and increases the total number of

PROGRESS ON MAGNETIC SUSPENSION FOR THE NIST VACUUM-TO-AIR MASS DISSEMINATION SYSTEM

September 3, 2015
Author(s)
Corey A. Stambaugh, Edward C. Mulhern, Eric C. Benck, Zeina J. Kubarych, Patrick J. Abbott
The redefined kilogram will be realized in vacuum and a method will be required to disseminate the standard to air. NIST has been developing a magnetic suspension system for this purpose. This paper discusses the progress to characterize and improve the

In-situ Temperature Calibration Capability for Dimensional Metrology

December 15, 2014
Author(s)
Prem K. Rachakonda, Daniel S. Sawyer, Balasubramanian Muralikrishnan, Christopher J. Blackburn, Craig M. Shakarji, Gregory F. Strouse, Steven D. Phillips
… Metrology Group (DMG) at the National Institute of Standards and Technology (NIST) has developed a new in-situ …
Displaying 12726 - 12750 of 17284
Was this page helpful?