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 21351 - 21375 of 73929

International Comparison of Surface Roughness, APMP.L-K8

June 17, 2013
Author(s)
Andrew Baker, Siew-Leng Tan, Richard Leach, Lena Jung, Seung Yin Wong, Anusorn Tonmueanwai, Kazuya Naoi, Jaewan Kim, Thomas Brian Renegar, K P Chaudhary, Louise Mostert, Mohamed Amer, Sitian Gao, Chin-Lung Tsai, Ngo N. Anh, Augustinus Drijarkara
Surface roughness calibration services of sixteen countries from four metrology regions are compared through measurements of roughness and step height standards. The artefacts circulated include three steps of nominal depths 0.4 μm, 2.4 μm and 10 μm

Properties of Selected Materials at Cryogenic Temperatures

June 17, 2013
Author(s)
Peter E. Bradley, Ray Radebaugh
The design of systems for operation at cryogenic temperatures requires the use of material properties at these low temperatures. The properties at cryogenic temperatures can be much different than the room-temperature values. In addition, some properties

Fermion Mediated Interactions Between Ultracold Bosons

June 16, 2013
Author(s)
Ian B. Spielman, Subhadeep De
We describe a new method for creating spin-dependent long-range interactions between atomic ultra-cold neutral bosons in an optical lattice. In this proposal, the bosonic system is immersed in a spin polarized degenerate Fermi gas. We first show that the

Radio-Frequency and DC Electrical Characterization on a Modular MEMS Mechanical Test Platform for Nanomaterials

June 16, 2013
Author(s)
J. J. Brown, Thomas Mitchell (Mitch) Wallis, Pavel Kabos, Kristine A. Bertness, Norman Sanford, Victor Bright
In order to enable radio frequency (RF) data collection from a micromechanical system designed to strain nanomaterials, a coplanar electrical waveguide has been integrated with an actuated microscale stage. RF (100 MHz to 20 GHz) admittance measurements

A comb-calibrated FMCW LADAR for absolute distance measurements

June 15, 2013
Author(s)
Esther Baumann, Fabrizio R. Giorgetta, Ian R. Coddington, Laura C. Sinclair, Kevin O. Knabe, William C. Swann, Nathan R. Newbury
We present a comb calibrated frequency-modulated continuous wave (FMCW) LADAR system for absolute distance measurements to diffuse or specular surfaces. The FMCW LADAR uses a MEMS-based external cavity laser that is swept quasi-sinusoidally over 1 THz at a

Mapping the Vif-A3G interaction using peptide arrays: a basis for anti-HIV lead peptides

June 15, 2013
Author(s)
Jeeseong Hwang, Ji Y. Lee, Abigail E. Miller, Tali Reingewertz, Elena Britan-Rosich, Shahar Rotem-Bamberger, Mathias Viard, Robert Blumenthal, Assaf Friedler
Human apolipoprotein-B mRNA-editing catalytic polypeptide-like 3G (A3G) is a cytidine deaminase that restricts retroviruses, endogenous retro-elements and DNA viruses. A3G plays a key role in the anti- HIV-1 innate cellular immunity. The HIV-1 Vif protein

ASME Journal of Computing and Information Science in Engineering (JCISE)

June 14, 2013
Author(s)
Vijay Srinivasan
For over a decade this journal has supported and advanced the research and applications at the intersection of information science and mechanical engineering. In that process it has established itself as a premier outlet for cutting edge research in the

CHARACTERIZING ENERGY CONSUMPTION OF THE INJECTION MOLDING PROCESS

June 14, 2013
Author(s)
Jatinder Madan, Mahesh Mani, Kevin W. Lyons
Presently available systems for sustainability assessment do not fully account for aspects related to a product’s manufacturing. In an effort to make more sustainable decisions, today’s industry seeks reliable methods to assess and compare sustainability

Dephasing of Si singlet-triplet qubits due to charge and spin defects

June 14, 2013
Author(s)
Dimitrie Culcer, Neil M. Zimmerman
We study the effect of charge and spin noise on singlet-triplet qubits in Si quantum dots. We set up a theoretical framework aimed at enabling experiment to efficiently identify the most deleterious defects, and complement it with the knowledge of defects

Dimensional Metrology and Imaging of Cellulose Nanocrystals

June 14, 2013
Author(s)
Michael T. Postek, Andras Vladar
Cellulose nanocrystals are one group of nanoparticles that have high potential economic value but, also present many basic research and manufacturing challenges. These challenges are not only in development of the fundamental processes needed for the

Optimized superconducting detectors using the proximity effect in Ti/TiN multilayers

June 14, 2013
Author(s)
David P. Pappas, Michael R. Vissers, Jiansong Gao, Martin O. Sandberg, David S. Wisbey, Kent D. Irwin
We apply the superconducting proximity effect in TiN/Ti multi-layers films to tune the critical temperature, $T_C$ (to within 10 mK) with high uniformity (less than 15 mK spread) across a 75 mm wafer. Reproducible $T_C$'s are obtained from 0.8 - 2.5 K

SemEval-2013 Task 7: The Joint Student Response Analysis and 8th Recognizing Textual Entailment Challenge

June 14, 2013
Author(s)
Myroslava Dzikovska, Rodney Nielsen, Chris Brew, Claudia Leacock, Danilo Giampiccolo, Luisa Bentivogli, Peter Clark, Ido Dagan, Hoa T. Dang
We present the results of the Joint Student Response Analysis and 8th Recognizing Textual Entailment Challenge, aiming to bring together researchers in educational NLP technology and textual entailment. The task of giving feedback on student answers

MEMS Device for Fatigue Testing of 25 mm Thick Aluminum Specimens

June 13, 2013
Author(s)
Li-Anne Liew, David T. Read, Nicholas Barbosa
We report the development and demonstration of a MEMS test instrument to perform fatigue testing on 25 µm thick aluminum 1145 H19 foil. Both the foil material and the specimen fabrication were obtained from commercial sources, separate from the fabrication

The Spin Hall Effect in a Quantum Gas

June 13, 2013
Author(s)
Matthew C. Beeler, Ross A. Williams, Karina K. Jimenez Garcia, Lindsay J. LeBlanc, Abigail R. Perry, Ian B. Spielman
Electronic properties like current flow are usually unaffected by the electron’s spin angular momentum, an internal degree of freedom present in quantum particles that can usually be either “up” or “down”. The spin-Hall effects (SHEs), first proposed 40

ITL Updates Glossary of Key Information Security Terms

June 12, 2013
Author(s)
Elizabeth B. Lennon
This ITL Bulletins describes the recent update of NISTIR 7298, Glossary of Key Information Security Terms. NISTIR 7298, Revision 2, provides a summary glossary of terms used in NIST publications and other relevant sources.
Displaying 21351 - 21375 of 73929
Was this page helpful?