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 24126 - 24150 of 73726

Metamodels towards Improved Domain Modeling for Semantic Inferencing

October 3, 2011
Author(s)
Paul W. Witherell, Anantha Narayanan Narayanan, Jae H. Lee, Sudarsan Rachuri
As information requirements have increased, domain models have become increasing complex and difficult to manage. Though domain-specific languages have been developed for domain experts, increasing their expressivity and decreasing their complexity, their

SteelVis User's Guide

October 3, 2011
Author(s)
Robert R. Lipman
This guide describes how to use SteelVis and its associated programs. SteelVis has two main functions: (1) to translate a CIS/2 (CIMsteel Integration Standards) file into an interactive 3D model in the form of a VRML (Virtual Reality Modeling Language)

SWIR calibration of spectralon reflectance factor

October 3, 2011
Author(s)
Catherine C. Cooksey, Georgi T. Georgiev, James J. Butler, Leibo Ding, Kurtis J. Thome
Satellite instruments operating in the reflective solar wavelength region require accurate and precise determination of the Bidirectional Reflectance Factor (BRF) of laboratory-based diffusers used in their pre-flight and on-orbit radiometric calibrations

Carbon nanotube arrays for absolute IR and THz radiometry

October 2, 2011
Author(s)
John H. Lehman, Kerry N. Betz, Erich N. Grossman
We have assembled and evaluated a novel electrically calibrated thermopile having an array of 1.5 mm long multiwalled carbon nanotubes as the radiation absorber. We find very low reflectance at the 390 υm laser wavelength and excellent agreement between

Alternate Smoldering Ignition Sources: A Literature Review with Analysis

October 1, 2011
Author(s)
Richard G. Gann, Amanda P. Robbins
Current existing and proposed U.S. flammability standards for soft furnishings such as mattresses and upholstered furniture specify a “standard” cigarette as the ignition source in smoldering resistance performance tests. With the prevalence of reduced

High Frequency Characterization of Contact Resistance and Conductivity of Platinum Nanowires*

October 1, 2011
Author(s)
Kichul Kim, Paul Rice, Thomas M. Wallis, Dazhen Gu, SangHyun S. Lim, Atif A. Imtiaz, Pavel Kabos, Dejan Filipovic
Abstract— Individual platinum (Pt) nanowires (NWs) with 100 nm and 250 nm diameters, embedded in coplanar waveguide (CPW) structures are investigated. Three approaches for characterization of their contact resistance and conductivity at high frequencies

The Effect of Gravity on the Resolution of Small-Angle Neutron Diffraction Peaks

October 1, 2011
Author(s)
David F. Mildner, John G. Barker, Steven R. Kline
The resolution ellipses for neutron diffraction peaks at small vectors lie along lines that point to a position vertically above the beam center. This gravity effect is only noticeable for neutron beams at long wavelenghts and with large wavelength spreads

The Evolution of Time Measurement, Part 2 - Quartz Clocks

October 1, 2011
Author(s)
Michael A. Lombardi
A historical article about the origins and the development of quartz clocks and oscillators (Part II of a IV-part series). It describes the discovery of piezoelectricity, the development of the first quartz oscillators, how quartz oscillators were

A synchrotron beamline for extreme-ultraviolet photoresist testing

September 30, 2011
Author(s)
Charles S. Tarrio, Steven E. Grantham, Shannon B. Hill, Nadir S. Faradzhev, Lee J. Richter, Chester Knurek, Thomas B. Lucatorto
Before being used in an extreme-ultraviolet (EUV) scanner, photoresists must first be evaluated for sensitivity and tested to ensure that they will not contaminate the scanner optics. The new NIST facility described here provides data on the contamination

Compressed-Liquid Density Measurements of Methyl Oleate and Methyl Linoleate

September 30, 2011
Author(s)
Stephanie L. Outcalt
Compressed liquid densities of the fatty acid methyl esters methyl linoleate and methyl oleate have been measured with a vibrating-tube densimeter. The temperature and pressure range of the measured data is from 270 K to 470 K, and 0.5 MPa to 50 MPa. The

Decoherence, Autler-Townes effect, and dark states in two-tone driving of a three-level superconducting system

September 30, 2011
Author(s)
Jian Li, G.S. Paraoanu, Katarina Cicak, Fabio Altomare, Jae Park, Raymond Simmonds, Mika A. Sillanpaa, Pertti Hakonen
We present a detailed theoretical and experimental study of a multi-level quantum system coupled to two radiation ¯elds and subject to decoherence. We concentrate on an e®ect known from quantum optics as the Autler-Townes splitting, which has been recently

Information Security Continuous Monitoring (ISCM) for Federal Information Systems and Organizations

September 30, 2011
Author(s)
Kelley L. Dempsey, L A. Johnson, Matthew A. Scholl, Kevin M. Stine, Alicia Clay Jones, Angela Orebaugh, Nirali S. Chawla, Ronald Johnston
The purpose of this guideline is to assist organizations in the development of a continuous monitoring strategy and the implementation of a continuous monitoring program providing visibility into organizational assets, awareness of threats and

ROADMAPPING MANUFACTURING NEEDS FOR MEMS TECHNOLOGIES

September 30, 2011
Author(s)
Michael Gaitan, Karen Lightman
This report summarizes issues in manufacturing from the 2011 iNEMI MEMS Technology Roadmap, and shares the authors’ observations from the 2011 MEMS Industry Group’s (MIG) Workshop on Device Testing and the 2012 ITRS MEMS Technology Working Group’s (TWG)
Displaying 24126 - 24150 of 73726
Was this page helpful?