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.

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 22026 - 22050 of 73697

Spectroscopic Identification of Hydrogen Spillover Species in Ruthenium-modified High Surface Area Carbons by Diffuse Reflectance Infrared Fourier Transform Spectroscopy

December 17, 2012
Author(s)
Jeffrey L. Blackburn, Chaiwat Engtrakul, Justin B. Bult, Katherine Hurst, Yufeng Zhao, Qiang Xu, Philip A. Parilla, Lin J. Simpson, John-David R. Rocha, Matthew Ross Hudson, Craig Brown, Thomas Gennett
In recent years, carbon-based sorbents have been recognized for their potential application within vehicular hydrogen storage applications. One method by which sorbents have been reported to store appreciable hydrogen at room temperature is via a spillover

Introducing the Federal Cybersecurity R&D Strategic Plan

December 14, 2012
Author(s)
Douglas Maughan, Bill Newhouse, Tomas Vagoun
In December 2011, the White House Office of Science and Technology Policy (OSTP) released the Trustworthy Cyberspace: Strategic Plan for the Federal Cybersecurity Research and Development Program - a framework for a set of coordinated Federal strategic

Securing Americas Digital Infrastructure Through Education

December 14, 2012
Author(s)
William D. Newhouse
This article provides an overview of the establishment of the National Initiative for Cybersecurity Education (NICE), its government structure, and it goals. Parallels are drawn between the strategic R&D thrust, Developing Scientific Foundations, described

Current Distribution and Transition Width in Superconducting Transition-Edge Sensors

December 13, 2012
Author(s)
Daniel S. Swetz, Douglas A. Bennett, Daniel R. Schmidt, Joel N. Ullom
Present models of the superconducting-to-normal transition in transition-edge sensors (TESs)do not describe the current distribution within a biased TES. This distribution is complicated by normal-metal features that are integral to TES design. We present

Dietary Supplement Laboratory Quality Assurance Program: Exercise H Final Report

December 13, 2012
Author(s)
Melissa M. Phillips, Catherine A. Rimmer, Laura J. Wood, Anthony F. Marlow, Michele M. Schantz, John R. Sieber
The NIST Dietary Supplement Laboratory Quality Assurance Program (DSQAP) was established in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements (ODS) in 2007 to enable members of the dietary supplements community to

Recommended viscosities of 11 dilute gases at 25?degC

December 13, 2012
Author(s)
Robert F. Berg, Michael R. Moldover
Commercially manufactured meters that measure the flow of a process gas are often calibrated with a known flow of a surrogate gas. This requires an accurate model of the flow meter and accurate values of the relevant thermophysical properties for both

STEP File Analyzer User's Guide

December 13, 2012
Author(s)
Robert R. Lipman
This guide describes how to use the STEP File Analyzer that generates a spreadsheet from a STEP file. The spreadsheet simplifies inspecting information in the STEP file at an entity and attributes level. Geometric, PMI, assembly, annotation, attribute, and

Antenna-Environment Multiple Scattering in Reverberation Chamber Measurements

December 12, 2012
Author(s)
Ryan J. Pirkl, Catherine A. Remley
High-resolution synthetic aperture measurements in a reverberation chamber revealed the presence of multiple scattering between the scan antenna and the measurement environment. Casting the scan antenna-environment multiple scattering as an error term with

Atom-Probe Tomographic Study of ?/?' Interfaces and Compositions in an Aged Co-Al-W Superalloy

December 12, 2012
Author(s)
Eric Lass, Kil-Won Moon, Maureen E. Williams, Carelyn E. Campbell, Ursula R. Kattner, David C. Dunand, Peter J. Bocchini, David N. Seidman
Atom-probe tomography (APT) is utilized to investigate, in a Co-9.7Al-10.8W at.% alloy aged at 900 °C for 1000 h, the phase composition and partitioning behavior of the two-phase ɣ(f.c.c.)/ɣ'(L12) microstructure. The APT composition of the ɣ-matrix (Co-8

Dual-polarization sensitive MKIDs for far infrared astrophysics

December 12, 2012
Author(s)
Johannes Hubmayr, James A. Beall, Daniel T. Becker, Hsiao-Mei Cho, Brad Dober, Mark Devlin, Anna E. Fox, Dale Li, Michael D. Niemack, David P. Pappas, Leila R. Vale, Kent D. Irwin, Gene C. Hilton
We present the design for arrays of dual-polarization sensitive, superconducting sensors for far infrared astrophysics. Each pixel is feedhorn-coupled and consists of orthogonal, lumped-element kinetic inductance detectors (LEKIDs) both fabricated in the

Exposing Wood Decking Assemblies to Continuous Wind-Driven Firebrand Showers

December 12, 2012
Author(s)
Samuel L. Manzello, Sayaka S. Suzuki
A series of experiments were conducted to determine vulnerabilities of wood decks to continuous, wind-driven firebrand showers. Sections of wood decks (1.2 m by 1.2 m) were constructed and attached to a re-entrant corner assembly. The deck/re-entrant

Flux Lattices Reformulated

December 12, 2012
Author(s)
Ian B. Spielman, Gediminas Juzeliunas
We theoretically explore the optical flux lattices produced for ultra-cold atoms subject to laser fields where both the atom-light coupling and the effective detuning are spatially periodic. We analyze the geometric vector potential and the magnetic flux

Indentation device for in situ Raman spectroscopic and optical studies

December 12, 2012
Author(s)
Yvonne B. Gerbig, Chris A. Michaels, Aaron M. Forster, John W. Hettenhouser, Walter E. Byrd, Dylan J. Morris, Robert F. Cook
Instrumented indentation is a widely used technique to study the mechanical behavior of materials at small length scales and thus has been exploited in particular for metals, ceramics, glasses, and polymers. Mechanical tests of bulk materials, microscopic

Self-aligned multi-channel silicon nanowire field-effect transistors

December 12, 2012
Author(s)
Hao Zhu, Qiliang Li, Hui Yuan, Helmut Baumgart, D. E. Ioannou, Curt A. Richter
Si nanowire field effect transistors (SiNW FETs) with multiple nanowire channels and different gate lengths have been fabricated by using a directed assembly approach combined with standard photolithographic process. The electrical characteristics of SiNW

Silicon Micromachines for Fun and Profit

December 12, 2012
Author(s)
David Bishop, Flavio Pardo, Cris Bolle, Randy Giles, Vladimir Aksyuk
Over the last decade or so a group of us, while working at Bell Labs, have been able to develop a large number of silicon micromachines for a wide range of applications. In this article, which is part of a special volume to celebrate the career of

Structure and Activity of PA5508, a Novel Hexameric Glutamine Synthase Homolog

December 12, 2012
Author(s)
Jane E. Ladner, James F. Parsons
The structure of PA5508 from Pseudomonas aeruginosa, a glutamine synthase (GS) homolog, has been solved at 2.5 Å. Surprisingly, PA5508 forms single hexameric rings rather than the stacked double rings that are characteristic of GS. The C-terminal helical
Displaying 22026 - 22050 of 73697
Was this page helpful?