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.
Gradient elution moving boundary electrophoresis (GEMBE) is a recently described technique for electrophoretic separations in short (1 cm 3 cm) capillaries or
Francis J. Lovas, David F. Plusquellic, Brooks Pate, Justin L. Neill, Matt T. Muckle, Anthony J. Remijan
The microwave spectrum of the sugar alcohol 1,2-propanediol (CH3CHOHCH2OH) has been measured over the frequency range 6.5 GHz to 25.0 GHz with several pulsed
Stephanie L. Outcalt, Arno R. Laesecke, Karin Brumback
The density, speed of sound, and viscosity of two rocket propellants (RP-1 and RP-2) have been measured. The combined range of the data is from 270 K to 470 K
The influence of water-to-cement mass ratio (w/c) on early-age properties of cement-based materials is investigated using a variety of experimental techniques
Over the course of the last decade, routine monitoring of the alanine dosimetry system revealed a small but significant observation that, after examination, led
The response of high-dose-range chemical dosimeters is dependent on the dosimeter temperature during irradiation. Typically, irradiation temperatures are
Quality control dosimetry is important to the routine operation of a radiation processing facility. For many applications this dosimetry must be traceable to a
Daniel A. Fischer, Cole Petersburg, Robert Daniel, Cherno Jaye, Faisal Alamgir
O K edge and Co L edge near edge X-ray absorption fine structure (NEXAFS) was used to examine the cathode of an intact solid-state lithium ion battery. The
Andrew C. Reid, Rhonald Lua, R E. Garcia, Valerie R. Coffman, Stephen A. Langer
OOF2 is a program for computing the properties and behavior of material microstructures, beginning with an image of the microstructural geometry. OOF2 uses
Muhammad Y. Afridi, Christopher B. Montgomery, Elliott cooper-Balis, Stephen Semancik, Kenneth G. Kreider, Jon C. Geist
In this paper we describe a novel microhotplate temperature sensor calibration technique suitable for Built-In Self Test. The technique only requires short-term
Lane C. Sander, Stephen E. Long, Steven J. Christopher, Russell D. Day, Karen E. Murphy, F. Cordeiro, T. Linsinger, H. Emteborg, I. Verbist, D. Vendelbo, P. Taylor, M. B. de la Calle
The Institute for Reference Materials and Measurements (IRMM) of the Joint Research Centre (JRC), a Directorate-General of the European Commission, operates the
Multiplex polymerase chain reaction (PCR) has become the standard in forensic testing. Currently there are two commercial multiplex PCR amplification kits
Eun S. Park, William E. Wallace, Charles M. Guttman, Kathleen M. Flynn, Mickey Richardson, Gale A. Holmes
A method is presented to test whether the conversion of the mass spectrum of a polydisperse analyte to its molecular mass distribution is quantitative. Mixtures
Viktoriya Sidorenko, Arthur P. Grollman, Pawel Jaruga, Miral M. Dizdar, Dmitry Zharhov
Human 8-oxoguanine-DNA-glycosylase (OGG1) efficiently removes mutagenic 8-oxoguanine (8-oxoGua) and 2,6-diamino-4-hydroxy-5-formamidopyrimidine (FapyGua) when
Ryan Henkensiefken, Javier Castro, Haejin Kim, Dale P. Bentz, Jason Weiss
Internal curing (IC) provides a set of water reservoirs within the concrete to prevent self-desiccation and promote hydration. While early research in this area
The NIST 10V Compact Josephson Voltage Standard (CJVS) and 2.5V Programmable Josephson Voltage Standard (PJVS) were directly compared at 1.018 V and 2.511 V in
A computation in adiabatic quantum computing is achieved by traversing a path of nondegenerate eigenstates of a continuous family of Hamiltonians. We introduce
Xiao Tang, Lijun Ma, Oliver T. Slattery, Tiejun Chang
We have experimentally implemented a non-degenerate sequential time-bin entangled photon-pair source using a periodically poled potassium titanyl phosphate
A thermodynamic analysis of refilling of a gaseous hydrogen fuel tank is described. This study may lend itself to the applications of refilling a hydrogen
Yu-Ju Lin, Abigail R. Perry, Robert L. Compton, Ian B. Spielman, James V. Porto
We describe an apparatus for quickly and simply producing ^87^Rb Bose-Einstein condensates. It is based on a magnetic quadrupole trap and a red detuned optical
A new form of tunable magnetic resonance imaging agent based on precisely dimensioned hollow cylindrical magnetic nanoshells is introduced. Using top-down
Kristian Helmerson, Jianyong N. Tang, Ana Jofre, Rani Kishore, Joseph E. Reiner, Mark E. Greene, Geoffrey M. Lowman, John Denker, Christina N. Willis, Lori Goldner
We describe a novel method of generating monodisperse sub-femtoliter aqueous droplets on demand by means of piezoelectric injection. Droplets with volumes down
Semistatic density functional theory is used to explore the evolution of [110] and [111] gold nanowires during tensile deformation under a wide range of
Marcia J. Holden, Ross J. Haynes, Savelas A. Rabb, Neena Satija, Kristina Yang, Joe Blasic
The amount of total DNA in a preparation extracted from tissues can be measured several ways, each method offering advantages and disadvantages. It is of
Jun Chen, Aaron Pearlman, Alexander E. Ling, Jingyun Fan, Alan L. Migdall
We present a systematic study of a correlated photon-pair source based on a periodically-poled KTiOPO4 (PPKTP) waveguide. The waveguide was fabricated on a