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Displaying 27176 - 27200 of 74084

System Builders Manual for Version 2.1.5 of the NIST DMIS Test Suite

August 19, 2009
Author(s)
Thomas R. Kramer, John A. Horst
This is a system builders manual for the NIST DMIS Test Suite, version 2.1.5. The purpose of the manual is to help system builders use software provided in the test suite for building systems that implement DMIS (the Dimensional Measuring Interface

Towards a Method for Harmonizing Information Standards

August 19, 2009
Author(s)
Xenia Fiorentini, Sudarsan Rachuri, Steven R. Ray, Ram D. Sriram
Designers and engineers use various engineering authoring tools, such as CAD, CAE, and PDM,, to generate information objects (engineering objects). On the business side, enterprise level business process modelers use various business authoring tools, such

Users Manual for Version 2.1.5 of the NIST DMIS Test Suite (for DMIS 5.1)

August 19, 2009
Author(s)
Thomas R. Kramer, John A. Horst
The NIST DMIS Test Suite, version 2.1.5, is described. The test suite is intended to serve two purposes, 1) to help users and vendors use version 5.1 of DMIS (the Dimensional Measuring Interface Standard) and 2) to provide utilities and test files for

Application of Thermal Gradients to Achieve Orientational Order in Block Copolymer Thin Films

August 18, 2009
Author(s)
Nathaniel J. Fredin, Brian Berry, Kevin G. Yager, Alamgir Karim, Sushil K. Satija, Deanna Pickel, Ronald L. Jones
The development of methods that permit control over the long-range order and orientation of microdomains in block copolymer (BCP) thin films for bottom-up approaches to nanoscale surface patterning is of great interest for many applications, including

Chemorheological Investigation on the Environmental Susceptibility of Sealants

August 18, 2009
Author(s)
Kar T. Tan, David J. Benatti, Christopher C. White, Donald L. Hunston, Deborah S. Jacobs
One of the major problems with any sealant system is its susceptibility to hostile environments, such as heat, moisture, ultraviolet radiation, oxygen, mechanical stress and biochemical attack. Prolonged exposure to these environments leads to substantial

Coupled magnetic and ferroelectric hysteresis in multiferroic Ni ^ d3 ^ V ^ d2 ^ O ^ d8 ^

August 18, 2009
Author(s)
I. Cabrera, M. Kenzelmann, Wangchun Chen, Ross Erwin, Thomas R. Gentile, Juscelino Leao, Jeffrey W. Lynn, N. Rogado, R. J. Cava, C. Broholm, G. Lawes, Ying Chen
Electric control of spin chirality in a magnetically frustrated multiferroic is demonstrated through polarized magnetic neutron diffraction. Cooling to the cycloidal multiferroic phase of Ni ^ d3 ^ V ^ d2 ^ O ^ d8 ^ in an electric field causes the

Treatment of Uncertainties in Radiation Dosimetry

August 18, 2009
Author(s)
Michael G. Mitch, Larry DeWerd, Ronaldo Minniti, J Williamson
When one perform a physical measurement or a Monte Carlo simulation and obtains a numerical result, the following questions may be asked. How accurate is the result? Is the measurement or simulation method of high quality? Can the result be meaningfully

Assessing Face Overlay

August 17, 2009
Author(s)
Mary F. Theofanos, Brian C. Stanton, Charles L. Sheppard, Ross J. Micheals, Yee-Yin Choong, John W. Wydler II, Kevin C. Mangold, Michelle P. Steves, Emile L. Morse
The United States Visitor and Immigrant Status Indicator Technology's (US-VISIT) has embarked on an effort to improve the quality of facial images captured at US ports of entry. One aspect of this effort was the identification of usability and human

Electromagnetic Penetration Studies for Three Different Aircraft

August 17, 2009
Author(s)
Chriss A. Grosvenor, David R. Novotny, Dennis G. Camell, Galen H. Koepke, Robert Johnk, Nino Canales
The National Institute of Standards and Technology has completed penetration studies on three different aircraft for the Federal Aviation Administration. These studies are used to understand cavity coupling characteristics between antennas placed at

PRF-Security Revisited With New Efficient Single-Keyed Domain Extensions

August 17, 2009
Author(s)
Mridul Nandi
In this paper, we study a wide class of single-keyed domain extension algorithms, called generalized domain extension (\tx{GDE}), extending a keyed function $F_K : {0,1}^b \to {0,1}^n$ to a keyed function $\overline{F}_K : {0,1}^* \to {0,1}^n$, $K \in {0,1

Temperature analysis of low-expansion Fabry-Perot cavities

August 17, 2009
Author(s)
Richard W. Fox
A model of the temperature response of low-expansion glass Fabry-Perot cavities that includes structural distortion at the contacted mirrors compares well to frequency measurements of different cavities built with the same spacer. The path elongation at

A Standards-based Global Ocean Monitoring System

August 16, 2009
Author(s)
Eugene Song, Kang B. Lee
This paper describes a standards-based global ocean monitoring system developed at the National Institute of Standards and Technology (NIST) with collaborating partners. This system adapts the Institute of Electrical and Electronics Engineers (IEEE) 1451

Adhesion and Mechanics of Complex Polymer Interfaces

August 16, 2009
Author(s)
Christopher M. Stafford, Jun Y. Chung, Heqing Huang, Adam J. Nolte, Peter M. Johnson, Edwin P. Chan
The structure and properties of polymer interfaces play an integral role in numerous technological applications, particularly in the areas of coatings and adhesives. These interfacial interactions are dependent on a host of factors, including interfacial

Differences in PDMS Modification Affect Laminin Deposition and Smooth Muscle Cell Response

August 16, 2009
Author(s)
Joy P. Dunkers, Hae-Jeong Lee, Marvi Matos, Lisa Pakstis, Juan M. Taboas, Steven D. Hudson, Marcus T. Cicerone
When culturing cells on flexible surfaces, it is important to consider extracellular matrix treatments that will remain on the surface under mechanical strain. Here we investigate differences in laminin surfaces that were deposited on oxidized PDMS (plasma

Nanoscale Photoresponse in Blended Organic Photovoltaics

August 16, 2009
Author(s)
Behrang H. Hamadani, Suyong S. Jung, Nikolai B. Zhitenev
Organic solar cells, which have attracted considerable interest over the last few years as low-cost, simply-processed alternatives for harvesting the solar energy, have interesting nanoscale properties; a thorough understanding of which is currently

Angle-resolved Optical Metrology using Multi-Technique Nested Uncertainties

August 15, 2009
Author(s)
Richard M. Silver, Bryan M. Barnes, Hui Zhou, Nien F. Zhang, Ronald G. Dixson
This paper introduces recent advances in scatterfield microscopy using improved normalization and fitting procedures. Reduced measurement uncertainties are obtained through the use of more accurate normalization procedures in combination with better

Applications of artificial neural networks in optical performance monitoring

August 15, 2009
Author(s)
Jeffrey A. Jargon, Xiaoxia Wu, Ronald Skoog, Loukas Paraschis, Alan Willner
Applications using artificial neural networks (ANNs) for optical performance monitoring (OPM) are proposed and demonstrated. Simultaneous identification of optical signal-to-noise-ratio (OSNR), chromatic dispersion (CD), and polarization-mode-dispersion

Conversion of laser optical rotation noise in cesium vapor

August 15, 2009
Author(s)
Ricardo Jimenez Martinez, Svenja A. Knappe, William C. Griffith, John E. Kitching
We have studied the noise in the optical rotation of a linearly polarized laser beam transmitted through a spin-polarized 133Cs vapor as a function of its frequency detuning from the optical resonance. Our measurements demonstrate the direct conversion of
Displaying 27176 - 27200 of 74084