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.
Cryocooler performance and reliability are continually improving. Consequently, they are more and more frequently implemented by physicists in their laboratory
The year 1906 was a year of many remarkable achievements in the laboratory of Kamerlingh Onnes and his staff. The put into operation a hydrogen liquefier
Terrence J. Udovic, Jeremy Cook, Alexander Skripov, Reinhard Hempelmann, Andrey Rempel, Aleksandr Gusev
In order to study the mechanism and parameters of H jump motion in the nonstoichiometric Nb carbides, we have performed quasielastic neutron scattering (QENS)
Frank W. DelRio, Cherno Jaye, Daniel A. Fischer, Robert F. Cook
Elastic and adhesive properties of alkanethiol (CH3(CH2)n 1SH) self-assembled monolayers on gold are investigated by atomic force microscopy and correlated with
This paper discusses the breakthroughs in science and engineering that have brought fire testing technology to its current state of maturity and provides
Edwin J. Heilweil, James E. Maslar, William A. Kimes, Nabil Bassim, Peter K. Schenck
An all-optical terahertz absorption technique for non-destructive characterization of nanometer-scale metal-oxide thin films grown on silicon substrates is
Yu-Ju Lin, Robert L. Compton, Abigail R. Perry, William D. Phillips, James V. Porto, Ian B. Spielman
We use a two-photon dressing field to create an effective vector gauge potential for Bose-condensed ^87Rb atoms in the F=1 hyperfine ground state. The dressed
Building sector stakeholders need compelling metrics, tools, data, and case studies supporting major investments in sustainable technologies. Proponents of
M Ledbetter, C.W. Crawford, A Pines, D.E. Wemmer, Svenja A. Knappe, John Kitching, D Budker
Nuclear magnetic resonance (NMR) has emerged as one of the most powerful analytical tools for elucidating molecular structure. One of the parameters typically
David T. Gallagher, N N. Smith, Soo-Kyung Kim, Howard Robinson, Prasad T. Reddy
he bacterial cyclic AMP receptor protein (CRP) has been studied extensively as a model allosterically controlled transcription factor, despite the lack of a
Deuk Y. Lee, Daniel R. Hines, Christopher Stafford, Christopher Soles, Eric K. Lin, Gottlieb Oehrlein
we performed a survey of the factors controlling the changes of the adhesion characteristics for PMMA and PET surfaces upon plasma activation of the respective
H Cao, Peter M. Gehring, Christopher Devreugd, Jose Rodriguez Rivera, D. Viehland
We report neutron diffuse scattering measurements on highly magnetostrictive Fe 1-xxGa x alloys (0.14 < x < 0.20) with different thermal treatments. This
Dean M. DeLongchamp, Regis J. Kline, Youngsuk Jung, David Germack, Eric K. Lin, Andrew Moad, Lee J. Richter, Michael F. Toney, Martin Heeney, Iain McCulloch
Terraced nanoscale ribbon domains of a poly(2,5-bis(3-alkylthiophen-2-yl) thieno[3,2-b]thiophene) form after thin films are cooled from its highest-temperature
A review of the state of the art of electrochemical methods at the highest metrological level in National Metrology Institutes (NMIs) in given, with emphasis on
Polynomially-large ground-state energy gaps are rare in many-body quantum systems, but required for adiabatic quantum computing. We show analytically that the
Christopher L. Holloway, Edward E. Kuester, David R. Novotny
In this paper we illustrate how metafilms (the two-dimensional equivalent of metamaterials) can be used to design novel waveguiding structures. The metafilm
Kirt A. Page, Jong K. Park, R B. Moore, Victoria Garcia Sakai
This work demonstrates the ability of quasi-elastic neutron scattering (QENS) to measure the dynamics associated with counterions in perfluorosulfonate ionomers
Yingmei Liu, Sebastian Jung, Stephen E. Maxwell, Lincoln Turner, Eite Tiesinga, Paul D. Lett
Spinor Bose-Einstein condensates of F=1 sodium atoms display interesting spin population dynamics due to the antiferromagnetic nature of the interactions in
Yifu Ding, Sebastian Pawlus, Alexei Sokolov, Jack F. Douglas, Alamgir Karim, Christopher Soles
We investigate the influence of adding C60 nanoparticles on the dielectric relaxation spectra of both unentangled and entangled polyisoprene (PIP). Relaxation
Karl K. Irikura, Russell D. Johnson III, Raghu N. Kacker, Ruediger Kessel
Vibrational zero-point energies (ZPEs) determined from ab initio calculations are often scaled by empirical factors. An empirical scaling factor partially
The amount of time to protect enterprise systems against potential vulnerability continues to shrink. Enterprises need an effective patch management mechanism
Robert D. Chirico, Vladimir Diky, Joe W. Magee, Michael D. Frenkel, Kenneth N. Marsh
This article is a product of IUPAC Project 2002-005-1-100 (Thermodynamics of ionic liquids, ionic liquid mixtures, and the development of standardiized systems)
Christopher G. Soares, G. Douyssey, Michael G. Mitch
Current primary standards for the calibration of both photon and beta particle emitting brachythrapy sources are reviewed. Methods for quality control being
David J. Evans, Adriana Hornikova, Stefan D. Leigh, Andrew L. Rukhin, William E. Strawderman
The first regional key comparison in vibration conducted under the auspices of the Inter-American System of Metrology (SIM) was begun in 1996. The comparison
Kenneth N. Marsh, Joan F. Brennecke, Robert D. Chirico, Michael D. Frenkel, Andreas Heintz, Joe W. Magee, Cor J. Peters, Luis P. Rebelo, Kenneth R. Seddon
This article summarized the results of IUPAC Project 2002-005-1-100 (Thermodynamics of ionic liquids, ionic liquid mixtures, and the development of standardized
N Guisinger, Gregory M. Rutter, Jason Crain, Phillip N. First, Joseph A. Stroscio
The realization of graphene-based electronics involves numerous challenges that include large-scale device fabrication and the ability to control the electronic
Analysis of the structural and optical properties of gold- and copper-catalyzed zinc oxide (ZnO) nanowires (NWs), grown in a high temperature tube furnace on a
Jun Y. Chung, Thomas Q. Chastek, Michael J. Fasolka, Hyun W. Ro, Christopher Stafford
Residual stress, a pervasive consequence of solid materials processing, is stress that remains in a material after external forces have been removed. In
Transversal gates play an important role in the theory of fault-tolerant quantum computation due to their simplicity and robustness to noise. By definition