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Displaying 34976 - 35000 of 74229

Prevailing Over Wires in Healthcare Environments: Benefits and Challenges

April 1, 2006
Author(s)
David E. Cypher, Nicolas Chevrollier, Nicolas Montavont, Nada T. Golmie
The objectives of this article are to survey the benefits and challenges that poise the deployment and operation of wireless communications in support of healthcare networks. While the main advantages of wireless communications remain to provide ubiquitous

Programmable Vector Point-Spread Function Engineering

April 1, 2006
Author(s)
M R. Beversluis, L Novotny, Stephan J. Stranick
We use a nematic liquid crystal spatial light modulator (SLM) to control the vector point spread function of a microscope objective by manipulating the pupil field polarization. In combination with an achromatic quarter-wave plate, the SLM acts as a

Radiation Properties of IR Calibrators With V-Grooved Surfaces

April 1, 2006
Author(s)
Leonard M. Hanssen, A Prokhorov, Sergey Mekhontsev
Use of linear or concentric grooves is a well-known approach for increasing the surface emissivity to enable the construction of compact blackbody radiators, improve absorptance of stray radiation traps, baffles and thermal radiation detectors, as well as

Recovering Spheres from 3D Point Data

April 1, 2006
Author(s)
Christoph J. Witzgall, Geraldine Cheok, Anthony J. Kearsley
The National Institute of Standards and Technology is involved in developing standard protocols for the performance evaluation of 3D imaging systems, which include laser scanners and LADARs (LAser Detection and Ranging). A LADAR is an optical device that

SANS and XRR Porosimetry of a Polyphenylene Low-k Dielectric

April 1, 2006
Author(s)
M S. Silverstein, Michael Shach-Caplan, Barry J. Bauer, R C. Hedden, V. J. Lee, B G. Landes
Nanometer scale porosity is being introduced into low-k dielectrics in an attempt to achieve the permittivities of less than 2.0. X-ray reflectivity (XRR) solvent porosimetry and small angle neutron scattering (SANS) contrast match solvent porosimetry can

Semantic Enterprise Application Integration Standards

April 1, 2006
Author(s)
Nenad Anicic, Zuran Marjanovic, Nenad Ivezic, Albert T. Jones
This paper investigates the potential of the Semantic Web technologies to support a semantic-based Enterprise Application Integration (EAI) standards architecture. We give a detailed information of the support that these technologies and the underlying

Setting standards and developing technology to aid the human identity testing community

April 1, 2006
Author(s)
John M. Butler, Michael D. Coble, Amy E. Decker, David L. Duewer, Carolyn R. Steffen, Margaret C. Kline, Janette W. Redman, Peter Vallone
Our project team at the U.S. National Institute of Standards and Technology (NIST) is funded by the National Institute of Justice (NIJ) to conduct research that benefits the human identity testing community and to create tools that enable forensic DNA

Some Improved Transition Probabilities for Neutral Carbon

April 1, 2006
Author(s)
Charlotte Fischer
An earlier paper ( Zatsarinny O and Froese Fischer C 2002 J.Phys. B: 35 4669) presented oscillator strengths for transitions from the 2p23P multiplet to high-lying excited states of carbon. The emphasis was on theaccurate prediction of energy levels

Spatial Distributions of Trapping Centers in HfO2/SiO2 Stacked Dielectrics

April 1, 2006
Author(s)
Da-Wei Heh, Eric M. Vogel, J B. Bernstein, Chadwin Yang, George A. Brown, Gennadi Bersuker, Pui-Yee Hung, Alain C. Diebold
An analysis methodology basd on charge pumping (CP) measurement was applied to extract the spatial depth profile of traps in the SiO2/HfO2 gate stacks. This analysis indicates that by changing CP measurement parameters it is possible to probe traps at

The Effect of Stress Induced Anisotropy in Patterned FeCo Thin Film Structures

April 1, 2006
Author(s)
Wonpil Yu, J A. Bain, Willard C. Uhlig, John Unguris
The usage of high moment FeCo alloys in magnetic recording heads can result in stress induced anisotropy due to the high magnetostriction constants of FeCo alloys with 30% to 50% Co. In this work, 1um thick FeCo (65% Fe, 35% Co) sheet films with a Cu

The evaluation of an autosomal SNP 12-plex assay

April 1, 2006
Author(s)
Peter M. Vallone, Amy E. Decker, Michael D. Coble, John M. Butler
SNPs have the potential to play a useful role in human identification testing. Small PCR amplicon sizes associated with SNP typing technologies make SNPs attractive for typing degraded DNA or other low copy number situations. SNP markers can be useful in

The Vapor Pressure of Mercury

April 1, 2006
Author(s)
Marcia L. Huber, Arno D. Laesecke, Daniel G. Friend
In this report, we review the available measurements of the vapor pressure of mercury and develop a new correlation for the vapor pressure of mercury that is valid from the triple point to the critical point. The equation is a Wagner-type form where the

Transport Properties of Argon at Zero Density From Viscosity-Ratio Measurements

April 1, 2006
Author(s)
E May, Michael R. Moldover, Robert F. Berg, John J. Hurly
We determined the zero-density viscosity and thermal conductivity of argon with an uncertainty of only 0.039 % in the temperature range 200 K to 400 K. Our results will improve: (1) the argon-argon interatomic potential, (2) calculated boundary-layer

Determination of Cyanide in Blood by Isotope Dilution Gas Chromatography-Mass Spectrometry

March 31, 2006
Author(s)
Karen E. Murphy, Michele M. Schantz, Therese A. Butler, Bruce A. Benner Jr, Laura J. Wood, Gregory C. Turk
A procedure based on isotope dilution gas chromatography/mass spectrometry (ID GC/MS) has been developed for the accurate and rapid determination of cyanide (CN) in whole blood. A known amount of isotopically labeled potassium cyanide (K13C15N) is added as

High-Throughput Evaluation of Restorative Dental Polymers

March 31, 2006
Author(s)
Sheng Lin-Gibson, Forrest A. Landis, Nancy J. Lin
The effects of co-monomer composition and irradiation time on material properties and cell response were determined using high-throughput and combinatorial methods. 2-Dimensional gradient samples varying in monomer composition and light exposure time were

Integer Representation of Decimal Numbers for Exact Computations

March 31, 2006
Author(s)
Javier Bernal, Christoph J. Witzgall
A scheme is presented and software is documented for representing as integers input decimal numbers that have been stored in a computer as double precision floating point numbers and for carrying out multiplications, additions and subtractions based on

Parallelism for Quantum Computation with Qudits

March 31, 2006
Author(s)
Dianne M. O'Leary
Robust quantum computation with d-level quantum systems (qudits) poses two requirements: fast, parallel quantum gates and high fidelity two-qudit gates. We first describe how to implement parallel single qudit operations. It is by now well known that any

Projections Onto Order Simplexes and Isotonic Regression

March 31, 2006
Author(s)
Anthony J. Kearsley
We begin this expository essay by reviewing with examples what a typical engineer already knows about statistics. We then consider a central question in engineering decision making, i.e., given a computer simulation of high-consequence systems, how do we

Ag/AgCl Microelectrodes with Improved Stability for Microfluidics

March 30, 2006
Author(s)
Brian J. Polk, Anna Stelzenmuller, Geraldine I. Mijares, William A. MacCrehan, Michael Gaitan
A method for fabricating Ag/AgCl planar microelectrodes for microfluidic applications is presented. Microreference electrodes enable accurate measurements with miniaturized chemical sensors but such electrodes often exhibit very limited useable lifetimes
Displaying 34976 - 35000 of 74229
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