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NIST Authors in Bold

Displaying 31801 - 31825 of 73929

DSR-Based Directional Routing Protocol for Ad Hoc Networks

November 14, 2007
Author(s)
Bin Hu, Hamid Gharavi
In this paper, a Dynamic Source Routing (DSR)-based directional routing protocol is invoked for wireless ad hoc networks using directional antennas. This is designed to balance the trade-off between co-channel interferences from nodes hops away, and the

The TRECVID 2007 BBC Rushes Summarization Evaluation Pilot

November 14, 2007
Author(s)
Paul D. Over, Alan Smeaton, Phillip Kelly
This paper provides an overview of a pilot evaluation of video summaries produced automatically from unedited BBC dramatic series video. It was carried out under the auspices of the TREC Video Retrieval Evaluations (TRECVID.) Twenty-two research teams

Growth of Silicon Carbide Nanowires by a Microwave Heating-Assisted Physical Vapor Transport Using Group VIII Metal Catalysts

November 13, 2007
Author(s)
Siddarth Sundaresan, Albert Davydov, Mark D. Vaudin, Igor Levin, James E. Maslar, Yong-lai Tian, M V. Rao
SiC nanowires are grown by a novel catalyst-assisted sublimation-sandwich (SS) method. This involves microwave heating-assisted physical vapor transport from a source 4H-SiC wafer to a closely positioned substrate 4H-SiC wafer. The substrate wafer is

Monitoring Contaminants in Seabirds: The Importance of Specimen Banking

November 13, 2007
Author(s)
Stacy S. Vander-Pol, Paul R. Becker
Historically, contaminants in seabird tissues were monitored by considering physically visible effects; however, subtle, sub-lethal effects are also important. Several long-term monitoring and specimen banking programs are in place for seabirds, and the

Physical and Chemical Data, Section 2

November 13, 2007
Author(s)
Daniel G. Friend, Bruce E. Poling, George H. Thomson, Thomas E. Daubert, Evan Buck
This Section provides tabular material for the physical and chemical properties of substances of interest to the chemical engineering community. Many of the tables have been generated using NIST standard reference data formulations, which provide

Preliminary Performance Assessment of Commercially-Available Hydrogen Sensors

November 12, 2007
Author(s)
Nathan D. Marsh, Thomas G. Cleary
As part of an effort to develop standard test methods for the performance of commercial hydrogen sensors, we employed the Fire Emulator / Detector Evaluator, an instrumented flow system designed to study the response of fire detectors (smoke, heat, gas)

Supplementary Backward Equations for the Industrial Formulation IAPWS-IF97 of Water and Steam for Fast Calculations of Heat Cycles, Boilers, and Steam Turbines

November 12, 2007
Author(s)
H J. Kretzschmar, K Knobloch, K Miyagawa, Allan H. Harvey, Wolfgang Wagner
This Extended Abstract summarizes the various supplementary equations that have been developed by the International Association for the Properties of Water and Steam to improve the calculation speed of the industrial standard formulation IAPWS-IF97 for

Sources of Uncertainty for Near-Field Measurements

November 11, 2007
Author(s)
Michael H. Francis, Ronald C. Wittmann
We discuss the sources of uncertainty in near-field measurements and their impact on far-field antenna parameters. The methods of estimating these uncertainties can be considered in three broad categories: theoretical estimation (analytical), computer

Design of the HLPR ChairHome Lift Position and Rehabilitation Chair

November 9, 2007
Author(s)
Roger V. Bostelman, James S. Albus
This paper is a HLPR Chair (Home Lift, Position, and Rehabilitation Chair) design document that includes a brief introduction of the need for this technology and all the mechanical and electrical designs produced to date to build this technology.

Reverse Engineering the Brain

November 9, 2007
Author(s)
James S. Albus
Reverse engineering the brain will require a deep understanding of how information is represented and how computation is performed in the brain. What are the functional operations? What are the knowledge data structures? How are messages encoded? How are

A Novel Peak Detection Algorithm for Use in the Study of Machining Chip Segmentation

November 7, 2007
Author(s)
Eric P. Whitenton, Robert W. Ivester, Jarred C. Heigel
The study of how metal deforms and flows as parts are machined yields important insights into the metal cutting process. Improvements in high-speed digital imaging and image processing software promise to improve our understanding of the tool-workpiece

Content-Based Assembly Search: A Step Towards Assembly Reuse

November 7, 2007
Author(s)
Ram D. Sriram, A S. Deshmukh, A G. Banerjee, Satyandra K. Gupta
The increased use of CAD systems by product development organizations has resulted in the creation of large databases of assemblies. This explosion of assembly data is likely to continue in the future. In many situations, text-based search alone may not be

Advanced Technology for Fire Suppression in Aircraft

November 6, 2007
Author(s)
Richard G. Gann
In its decade of systematic research (1997-2006), the NGP revitalized the field of fire suppression science. The NGP arose as a result of a discovery that garnered the Nobel Prize for two accomplished chemists and legislation that turned science into

Influence of the Colloidal Environment on the Magnetic Behavior of Cobalt Nanoparticles

November 6, 2007
Author(s)
Guangjun Cheng, Cindi L. Dennis, Robert D. Shull, Angela R. Hight Walker
The magnetic properties of 10 nm cobalt (Co) nanoparticles in 1,2-dicholorbenenze (DCB) are investigated via a series of magnetization (M) vs. temperature (T) measurements. A rapid rise in magnetization around 250 K during warming and a sudden drop at 240

Planning User-Centered Evaluations for Interactive Information Visualizations

November 2, 2007
Author(s)
Yee-Yin Choong, Theresa O'Connell
This paper describes a user-centered methodology to evaluate innovative, complex interactive visualizations (IVs) developed for information analysis. Our research goal is to develop innovative evaluation methods and sensitive metrics to understand how
Displaying 31801 - 31825 of 73929
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