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Displaying 7901 - 7925 of 9859

First Variation of the General Curvature-dependent Surface Energy

January 1, 2012
Author(s)
Gunay Dogan, Ricardo H. Nochetto
We consider general weighted surface energies, where the energies have the form of weighted integrals over a closed surface and the weight depends on the normal and the mean curvature of the surface. Energies of this form have applications in many areas

Characterization of Approach Air Distribution for a Finned-Tube Heat Exchanger

February 18, 2011
Author(s)
David A. Yashar, Piotr A. Domanski, Hong H. Cho
The distribution of air flow approaching a finned-tube heat exchanger is one of the predominant factors influencing the heat exchanger’s performance. This paper describes a method for measuring and predicting the inlet air flow distribution using Particle

Semantic-based Optimal XML Schema Matching: A Mathematical Programming Approach

February 9, 2011
Author(s)
Jaewook Kim, Yun Peng, Nenad Ivezic, Jun H. Shin
We propose a novel solution for semantic-based XML schema matching, taking a mathematical programming approach. This method identifies the globally optimal solution for the problem of matching two XML schemas by reducing the tree-to-tree matching problem

Evaluation of Maps using Fixed Shapes: The Fiducial Map Metric

January 31, 2011
Author(s)
Soren Schwertfeger, Adam S. Jacoff, Christopher Scrapper, Johannes Pellenz, Alexander Kleiner
Mapping is an important task for mobile robots. Assessing the quality of those maps is an open topic. A new approach on map evaluation is presented here. It makes use of artificial objects placed in the environment named "Fiducials". Using the known ground

Electronic Vector-Network-Analyzer Verification

October 1, 2009
Author(s)
Dylan F. Williams, Arkadiusz C. Lewandowski, Denis X. LeGolvan, Ronald A. Ginley
The National Institute of Standards and Technology (NIST) has just introduced a fully electronic measurement verification system for microwave vector-network-analyzer (VNA) calibrations called NISTeVerify. The system allows you to quickly verify VNA

NIST 35. NIST/EPA Gas-Phase Infrared Database - JCAMP Format

October 16, 2008
Author(s)
Stephen E. Stein
This data collection contains 5,228 infrared spectra in the JCAMP-DX (Joint Committe for Atomic and Molecular Physical Data Data Exchange) format. They are provided in two separate files on six (6) high density 3 diskettes for MS-DOS personal computers

Multilayers for Next Generation X-Ray Sources

December 1, 2007
Author(s)
Sasa Bajt, H N. Chapman, E Spiller, S Hau-Riege, J Alameda, A J. Nelson, C C. Walton, B Kjornrattanawanich, Andrew Aquila, Charles Tarrio, Steven Grantham
Multilayers are artificially layered structures that can be used to create optics and optical elements for a broad range of x-ray wavelengths, or can be optimized for other applications. The development of next generation x-ray sources (synchrotrons and x

Dynamic Simulation and Modeling of a Road Vehicle

February 2, 2006
Author(s)
Tsung-Ming Tsai
Automated driving of road vehicles needs to use a simulation environment to develop control programs. A vehicle dynamic simulation program was implemented into a computer system. It contains a vehicle dynamic model that models all essential parts of a

Transport Coefficients of the Lennard-Jones Model Fluid. I. Viscosity

August 22, 2004
Author(s)
J Meier, Arno D. Laesecke, Stephan Kabelac
In an extensive computer simulation study, the transport coefficients of the Lennard-Jones model were determind with high accuracy from equilibrium molecular-dynamics simulations. In the frame of time correlation function theory, the generalized Einstein

BACnet Wide Area Network Security Threat Assessment

July 1, 2003
Author(s)
David G. Holmberg
This technical report addresses inter-networked building automation and control systems (BAS or BCS) using the BACnet protocol [ANSI/ASHRAE, 2001]. The report deals with threats from known sources due to communication connections to the corporate LAN and

BACnet Wide Area Network Security Threat Assessment.

July 1, 2003
Author(s)
David G. Holmberg
This technical report addresses inter-networked building automation and control systems (BAS or BCS) using the BACnet protocol [ANSI/ASHRAE, 2001]. The report deals with threats from known sources due to communication connections to the corporate LAN and

NIST Digital Library of Mathematical Functions

May 1, 2003
Author(s)
Daniel W. Lozier
NIST (formerly, National Bureau of Standards) has started an ambitious project that aims to produce a successor to Abramowitz and Stegun's {\em Handbook of Mathematical Functions}, published by the National Bureau of Standards in 1964 and reprinted by

Effective Hamiltonian Study of PZT 95/5

January 21, 2002
Author(s)
K Leung, Eric J. Cockayne, A F. Wright
An effective Hamiltonian is constructed for PbZr0.95Ti0.05O3. It is parameterized using ab initio results computed in the virtual crystal approximation. The phase diagram depends sensitively on the energetic competition between the stable orthorhombic

Engineering of Mind: An Introduction to the Science of Intelligent Systems

October 1, 2001
Author(s)
James S. Albus, A Meystel
This book suggests that a computational theory of mind is emerging that will enable the engineering of mind. It briefly traces the history of scientific interest in the mind and puts into perspective recent advances in knowledge about the brain. It brings

Window-Based Applications of TRC Databases: Structure and Internet Distribution

January 1, 2001
Author(s)
X. Yan, Qian Dong, Michael D. Frenkel, K. R. Hall
Thermophysical and thermochemical property data on organic compounds provide vital background information for scientific and engineering communities in both academic and industrial environments. The Thermodynamics Research Center (TRC) has collected an
Displaying 7901 - 7925 of 9859
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