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Displaying 2926 - 2950 of 7109

The Analysis, Synthesis, and Description of Biological Images

January 1, 1966
Author(s)
Russell A. Kirsch, L Lipkin, W Watt
We will begin by asking if the prevailing notion of what computer systems can achieve in biological image-processing may not be overly modest. This question seems to us fundamental, for such an underestimate might produce not only a limitation of

Structure and Properties of Silica Nanoclusters at High Temperatures

June 1, 2002
Author(s)
I V. Schweigert, K E. Lehtinen, Michael J. Carrier, Michael R. Zachariah
The properties of silica clusters at temperatures from 1500 to 2800 K are investigated using classical molecular dynamics simulations for particles containing up to 1152 atoms. We found that atoms in the cluster were arranged in a shell-like structure at

Time-Resolved Infrared Studies of a Trimethylphosphine Model Derivative of [FeFe]-Hydrogenase

October 1, 2013
Author(s)
Edwin J. Heilweil, Christopher J. Stromberg, Melissa Johnson, James Thuman, Roger G. Letterman, Webster E. Charles
Model compounds that structurally mimic the hydrogen-producing active site of [FeFe] hydrogenases have been explored. In order to explore potential ground-state electronic structure effects on reaction mechanisms compared to hexacarbonyl derivatives, the

Approach to Modeling Flame Spread Over Polyurethane Foam-Covered Walls. (POSTER ABSTRACTS)

September 1, 2005
Author(s)
Daniel M. Madrzykowski, Stephen Kerber, Nelson P. Bryner, William L. Grosshandler
Computer simulation has been demonstrated to be credible, when properly applied, as a tool to help fill in critical details of a fire incident and to demonstrate the value of alternative building designs and fire safety measures. This poster presents the

Computational Materials for Qualification and Certification (CM4QC) Strategy Document: Maturation of Computational Materials Methods for Aviation-Focused Qualification and Certification of Metal Additive Manufacturing (as an Example of Process-Intensive M

March 4, 2026
Author(s)
Edward Glaessgen, Michael Gorelik, Lyle Levine, Corbett Battaile, Michael Kane, Nam Phan, Alexander Plotkowski, Edwin Schwalbach, Derrick Lamm, Narendran Raghavan, Nate Ashmore, Richard Barto, James Dobbs, Matthew Lynch, Markus Heinimann, Peter Kantzos, Alonso Peralta-Duran, Carl Popelar, Prabhjot Singh, Suresh Sundarraj, Paul Toivonen, Vasisht Venkatesh, Bret Vogel, Deborah Whitis, Harry Millwater, Anthony Rollett, Sankaran Mahadevan, Caglar Oskay, Todd Palmer, Gregory Wagner
… Computational Materials for Qualification and Certification (CM4QC) Strategy Document: Maturation of Computational Materials Methods for Aviation-Focused …

Towards a Markerless 3D Pose Estimation Tool

April 28, 2023
Author(s)
Amaan Rahman, Mili Shah, Ya-Shian Li-Baboud, Ann Virts
Evaluation of exoskeleton performance benefts from standards to verify proper functionality and safety. Currently, there are limited evaluation methods for exoskeletons. Measurement methods to evaluate human-exoskeleton kinematics include optical tracking

Three Years of DLMF: Web, Math & Search

August 1, 2013
Author(s)
Bruce R. Miller
DLMF was released to the public in May 2010 and is now completing its 3rd year online. As a somewhat early adopter of large-scale MathML content online, and exposing a math-aware search engine to the public, the project encountered situations distinct from

Usability Testing of Ten-Print Fingerprint Capture

October 8, 2007
Author(s)
Brian C. Stanton, Mary F. Theofanos, Shahram Orandi, Ross J. Micheals, Nien F. Zhang
Despite the increased deployment of biometric technologies in United States government applications, not enough attention is being paid to the human factors that such technologies involve. The use of biometric applications will be unfamiliar to many users

CAD/CAPP Integration using Feature Ontology

January 1, 2005
Author(s)
C Dartigues, P Ghodous, Michael Gruninger, D Pallez, Ram D. Sriram
In a collaborative computer-supported engineering environment, the interoperation of various applications will need a representation that goes beyond the current geometry-based representation, which is inadequate for capturing semantic information. The

When to Fuse Two Biometrics?

June 13, 2006
Author(s)
Elham Tabassi, Patrick J. Grother, George W. Quinn
Biometric fusion, acquisition and combination of multiple pieces of evidence of identity, can achieve higher accuracy of biometric recognition than using a single biometric. However, fusion increases the cost or throughput of the system since it requires

Extended Huckel Tight-Binding Approach to Electronic Excitations

July 25, 2008
Author(s)
Luis C. Rincon, Anwar Hasmy-Aguilar, Carlos A. Gonzalez, Rafael Almeida
In this work we propose the application of a self-consistent Extended Huckel Tight Binding method in the computation of the absorption optical spectrum of molecules within the linear response time dependent Density Functional formalism. The Extended Huckel

Demonstration of Real-Time Tactical Decision Aid Displays

August 1, 2007
Author(s)
William D. Davis, David G. Holmberg, Paul A. Reneke, L D. Brassell, R Vettori
On September 22, 2005 the National Institute of Standards and Technology (NIST) conducted a demonstration of two prototype tactical decision aid computer interfaces in the city of Wilson, North Carolina. Members of the City of Wilson Fire Department

Chaotic Scattering and Escape Times of Marginally Trapped Ultracold Neutrons

April 1, 2004
Author(s)
Kevin Coakley, J M. Doyle, S N. Dzhosyuk, L Yang, Paul R. Huffman
We compute classical trajectories of Ultracold neutrons (UCNs) in a superconducting Ioffe-type magnetic trap using a symplectic integration method. We find that the computed escape time for a particular set of initial conditions (momentum and position)
Displaying 2926 - 2950 of 7109
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