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Displaying 38101 - 38125 of 73815

Autonomy Measures for Robots

November 1, 2004
Author(s)
Hui-Min Huang, Elena R. Messina, R C. Wade, W English, B Novak, James S. Albus
Robots are becoming increasingly autonomous. Yet, there are no commonly accepted terms and measures of just how autonomous a robot is. An ad hoc working group has been formed to address these deficiencies, focusing on the unmanned vehicles domain. This

Characterizing Rockwell Diamond Indenters Using Depth of Penetration

November 1, 2004
Author(s)
R -. Ellis, P Mumford, Samuel Low, A Knott
Diamond indenters used in a Rockwell hardness tester can dramatically affect the performance of the test. For this reason, it is important to find a method that can characterize the indenter. Current methods of verifying diamond indenter geometry have

Control of Surface Properties Using Fluorinated Polymer Brushes Produced by Surface-Initiated Controlled Radical Polymerization

November 1, 2004
Author(s)
L Andruzzi, A Hexemer, X Li, Christopher K. Ober, E K. Kramer, Giancarlo Galli, E Chiellini, Daniel A. Fischer
Surface-grafted styrene-based homopolymer and diblock copolymer brushes bearing semifluorinated alkyl groups were synthesized by nitroxide-mediated controlled radical polymerization on planar silicon oxide surfaces. The polymer brushes were characterized

Design for a multifrequency high magnetic field superconducting quantum interference device-detected quantitative electron paramagnetic resonance probe: Spin-lattice relaxation of cupric sulfate pentahydrate (CuSO 4 &#82265H 2 O

November 1, 2004
Author(s)
Brant Cage, Stephen E. Russek
We have designed a spectrometer for the quantitative determination of electron paramagnetic resonance (EPR) at high magnetic fields and frequencies. It uses a superconducting quantum interference device (SQUID) for measuring the magnetic moment as a

Determining the Uncertainty of X-Ray Absorption Measurements

November 1, 2004
Author(s)
G S. Wojcik
X-ray absorption techniques have become more common and more accepted in the study of moisture contents and transport in building materials like cement pastes, mortars, and wood. To be able to properly interpret the data gathered by the machine, it is

Feature-Based Component Model for Design of Embedded Systems

November 1, 2004
Author(s)
XuanFang Zha, Ram D. Sriram
An embedded system is a hybrid of hardware and software, which combines software?s flexibility and hardware real-time performance. Embedded systems can be considered as assemblies of hardware and software components. An Open Embedded System Model (OESM) is

Hurricane Damage Prediction Model for Residential Structures

November 1, 2004
Author(s)
Emil Simiu, J P. Pinelli, C Subramanian, L. Zhang, A Cope, K Gurley, James J. Filliben, S Hamid
This paper reports progress in the development of a practical probabilistic model for the estimation of expected annual damage induced by hurricane winds in residential structures. The estimation of the damage is accomplished in several steps. First, basic

Improved Radiometry For Extreme-Ultraviolet Lithography

November 1, 2004
Author(s)
Charles S. Tarrio, Robert E. Vest, Steven E. Grantham, K Liu, Thomas B. Lucatorto, Ping-Shine Shaw
The absolute cryogenic radiometer (ACR), an electrical-substitution-based detector, is the most accurate method for measurement of radiant power in the extreme ultraviolet. At the National Institute of Standards and Technology, ACR-based measurements are

Incorporating Subjective Risk Vales in BGP Attack Trees

November 1, 2004
Author(s)
D. Richard Kuhn, Kotikalapudi Sriram, Douglas Montgomery
We examine the performance of multimodal biometric authentication systems using state-of-the-art Commercial Off-the-Shelf (COTS) fingerprint and face biometric systems on a population approaching 1,000 individuals. Majority of prior studies of multimodal
Displaying 38101 - 38125 of 73815
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