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Search Publications

NIST Authors in Bold

Displaying 31476 - 31500 of 73697

Improved Method for Calibrating a Stokes Polarimeter

December 10, 2007
Author(s)
Bruno Boulbry, J C. Ramella-Roman, Thomas A. Germer
We present a method for calibrating polarimeters that uses a set of well-characterized reference polarizations and makes no assumptions about the optics contained in the polarimeter other than their linearity. The method requires that a matrix be

Interlaboratory Comparisons

December 10, 2007
Author(s)
William F. Guthrie
An interlaboratory comparison for a measurement procedure is an exercise carried out by a group of laboratories to compare their performance or assess a measurement standard. Interlaboratory comparisons are typically used for one of three main purposes, to

A Mobile Robot Control Framework: From Simulation to Reality

December 7, 2007
Author(s)
Stephen B. Balakirsky, Frederick M. Proctor, Christopher J. Scrapper Jr, Thomas R. Kramer
In order to expedite the research and development of robotic systems and foster development of novel robot configurations, it is essential to develop tools and standards that allow researchers to rapidly develop, communicate, and compare experimental

Application of an Evolution Program for Refirgerant Circuitry Optimization.

December 7, 2007
Author(s)
Piotr A. Domanski, David A. Yashar
Increased concerns about climate change have emphasized the importance of air-conditioning and refrigeration systems with a high coefficient of performance (COP). The effectiveness of heat exchangers significantly influences the vapor-compression system's

Application of an Evolution Program for Refrigerant Circuitry Optimization

December 7, 2007
Author(s)
Piotr A. Domanski, David A. Yashar
Increased concerns about climate change have emphasized the importance of air-conditioning and refrigeration systems with a high coefficient of performance (COP). The effectiveness of heat exchangers significantly influences the vapor-compression system s

Fabrication and Characterization of Patterned Single-Crystal Silicon Nanolines

December 7, 2007
Author(s)
Bin Li, Min K. Kang, Kuan Lu, Rui Huang, Paul S. Ho, Richard A. Allen, Michael W. Cresswell
This letter demonstrates a method to fabricate single-crystal Si nanolines, with a rectangular cross section and atomically flat sidewalls. The high quality of these nanolines leads to superb mechanical properties, with the strain to fracture estimated by

NIST HB-1A Energy Efficient Lighting - Solid State Luminaires

December 7, 2007
Author(s)
C Cameron Miller, Lawrence I. Knab, Ambler Thompson, Jon M. Crickenberger
NIST Handbook 150-1A presents technical requirements and guidance for the accreditation of laboratories under the National Voluntary Laboratory Accreditation Program (NVLAP) Energy Efficient Lighting/Solid State luminaires program. It is intended for

Epitope Selection of Monoclonal Antibodies for Interleukin-4 Quantification Using Suspension Arrays and Forward-Phase Protein Microarrays

December 6, 2007
Author(s)
Lili Wang, Kenneth D. Cole, Hua-Jun He, Alexander W. Peterson, Adolfas K. Gaigalas, Y Zong
A recombinant mouse interleukin-4 (IL-4) and three different purified rat anti-mouse IL-4 monoclonal antibodies (Mab) with different epitopes were employed as a model system. This system was used to examine monoclonal antibody effectiveness using both

Characterization of Spatial Heterogenieties in Detector Grade CdZnTe

December 4, 2007
Author(s)
Martine Duff, Douglas Hunter, Arnold Burger, Michael Groza, V Buliga, J Bradley, G Graham, Z Dai, N Teslich, David R. Black, H E. Burdette, A Lanzirotti
Synthetic Cd1-xZnxTe or CZT crystals are highly suitable for the room temperature-based spectroscopy of gamma radiation. Structural/morphological heterogeneities within CZT, such as secondary phases that are thought to consist of Te metal, can have

Assessment of measurement uncertainty via observation equations

December 3, 2007
Author(s)
Antonio M. Possolo, Blaza Toman
According to the Guide to the Expression of Uncertainty in Measurement, measurement uncertainty is assessed by computational propagation of error based on a measurement equation that expresses the measurand as a known function of input variables. However

Case Study in the Challenges of Integrating CNC Production and Enterprise Systems

December 3, 2007
Author(s)
Sid Venkatesh, B. Sides, John L. Michaloski, Frederick M. Proctor
Integration of factory floor Computer Numerical Control (CNC) information into Enterprise Resource Planning (ERP) subsystems has been difficult, if not impossible, as traditionally, factory floor machines have been islands of automation. Boeing/NIST/Okuma

Grouping Sensory Primitives for Object Recognition and Tracking

December 3, 2007
Author(s)
Rajmohan Madhavan, M Foedissch, Tommy Chang, Tsai Hong Hong
In this paper, we describe our recent efforts in grouping sensory data into meaningful entities. Our grouping philosophy is based on perceptual organization principles using gestalt hypotheses where we impose structural regularity on sensory primitives

Investigations into the potential contribution of a thermal mechanism for pulsed-high intensity focused ultrasound mediated delivery

December 3, 2007
Author(s)
Brian E. O'Neill, Howard Vo, Mary Angstadt, Victor Frenkel, Bradford Wood, Timothy P. Quinn
The mechanism behind pulsed high intensity focused ultrasound (pHIFU) effects leading to increased drug delivery are currently poorly understood. In this work, the thermal dose and peak temperatures associated with a typical pHIFU treatment were measured

Performance of a Cryocooled Nb DC Programmable Voltage Standard at 4 K

December 3, 2007
Author(s)
Robert J. Webber, Charles J. Burroughs, Masoud Radparvar
We report on the performance of a 1 Volt DC programmable Josephson voltage standard (PJVS) operating on a commercially available Gifford-McMahon (G-M) cryocooler at 4 K. The NIST-fabricated niobium superconductor-normal metal-superconductor (SNS) junction

Smart Cards for Mobile Devices

December 3, 2007
Author(s)
Wayne Jansen, Serban I. Gavrila, Clement Seveillac
While mobile handheld devices provide productivity benefits, they also pose new risks. User authentication is the best safeguard against the risk of unauthorised use and access to a device¿s contents. This paper describes two novel types of Smart Card (SC)
Displaying 31476 - 31500 of 73697
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