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.
Multi-valued measurands, such as spectral reflectance or transmission, tristimulus values, are usually analyzed by reducing the data to a single-valued
The p-ρ-T behavior of 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) was measured from T = (232 to 400)K with pressures up to 10 MPa using a two-sinker densimeter. The
This introductory article overviews the concepts and purpose of the Smart Grid and the important role of communications technology in its development. It
Illarion V. Turko, Gun-Young Heo, Ilya Bederman, Natalia Mast, Wei-Li Liao, Irina A. Pikuleva
Of different oxygenated cholesterol metabolites, 7-ketocholesterol (7KCh) is considered noxious oxysterol implicated in the development of certain pathologies
William R. Kelly, Kenneth W. Pratt, William F. Guthrie, Keith R. Martin
The Method of Standard Additions or the Standard Addition Method, often referred by its acronym as just SAM, is now a proverbial workhorse in both inorganic and
This is an editorial article for a special issue on smart grid. The main objective is to report on some, if not all, of smart grid future technical challenges
Several CALPHAD-based assessments of the self-diffusion mobility of Ni in pure Ni and Al in pure Al have been published. In an effort to determine which
Jeffrey M. Davis, Dale E. Newbury, Nicholas W. Ritchie, Edward P. Vicenzi, Dale P. Bentz, Albert J. Fahey
X-ray elemental mapping and x-ray spectrum imaging are powerful microanalytical tools. However, their scope is limited spatially by the raster area of a
As the world struggles to reduce energy consumption and greenhouse gas emissions, much attention is focused on making buildings operate more efficiently
When multi-path fading and interference frequently disrupts a mobile radio communication system, it can seriously undermine its reliability for transmission of
A variety of data smoothing techniques exist to address the issue of noise in spectroscopic data. The vast majority, however, require parameter specification by
Sung Kim, Edward E. Kuester, Christopher L. Holloway, James R. Baker-Jarvis, Aaron D. Scher
This paper presents a method for the determination of the effective electromagnetic parameters of a metamaterial, taking boundary effects at the interfaces
It is envisioned that one of the most important issues in Smart Grid will be to design a network architecture that is capable of providing secure and reliable
Gregory T. Linteris, Fumiaki Takahashi, Vishwanath R. Katta
Extinguishment of laminar coflow diffusion flames in microgravity (μg) have been studied experimentally and computationally. The μg experiments were conducted
Pulse metrology refers to the science of the measurement of pulses, which are transient phenomena. This article describes concepts important for pulse metrology
We model the first stage of the electronic interaction between an ion and a metal surface covered with a thin dielectric layer. Specifically, we seek to answer
Since 1976, when Whitfield Diffie and Martin Helleman, first surmised the possibilities for the potential uses for digital signatures in an IEEE publication
Randolph E. Elmquist, David B. Newell, George R. Jones, Felipe L. Marquez-Hernandez, Mariano A. Real, Tian T. Shen
Many material and electronic contributions must be favorable to produce devices with strong quantum Hall effect (QHE) plateaus that are suitable for precise
The electrical conductance of magnetic tunnel junction (MTJ) devices whose ultra-thin aluminum oxide tunnel barrier was irradiated by highly charged ions (HCIs)
To protect structures from suffering significant damage during a major earthquake, fluid viscous dampers (FVDs) have been used in both newly constructed and
To create effective and accurate two-way, free form, spoken language translation devices, the technologies must have appropriate training data. The goal of the
Eric P. Whitenton, Iban Arriola, Jarred Heigel, Pedro Arrazola
Temperature and plastic strain maps were obtained during orthogonal cutting of two AISI 4140 steels with different machinability indexes using a high-speed dual
The uniaxial strain dependence of the critical current was measured both in tension and compression in Bi-2212 high-temperature superconducting round wires. We
David R. Black, Donald A. Windover, Albert Henins, James J. Filliben, James P. Cline
The National Institute of Standards and Technology (NIST) certifies a suite of Standard Reference Materials (SRMs) to address specific aspects of instrument
Michael D. Coble, Margaret C. Kline, John M. Butler
With the advent of Forensic DNA profiling in the mid-1980s, this technology has had a positive impact on the criminal justice system, helping to convict the
Patrick M. Lenahan, Jason Campbell, A.T. Krishnan, S. Krishnan
The negative bias temperature instability (NBTI) is, arguably, the single most important reliability problem in present day metal oxide silicon field effect
Frederico D. Nunes, Thiago Vasconcelos, Marcel Bezerra, John Weiner
The description of the energy density associated with an electromagnetic field propagating through matter must treat two different phenomena: dispersion, the
Yvonne B. Gerbig, Stephan J. Stranick, Robert F. Cook
The theoretically-predicted anisotropic nature of the indentation phase transformation in silicon (Si) is observed directly in experiments using hyperspectral