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Displaying 42776 - 42800 of 74053

Dealing with Degeneracy in Triangulation

November 1, 2002
Author(s)
Francis Sullivan, Isabel M. Beichl
This is a tutorial article on a quick method for dealing with degeneracy in geometric computations with specific reference to triangulation. The type degeneracy targeted by this article that of four or more points on a circle and five or more points on a

Development and Validation of Corridor Flow Submodel for CFAST

November 1, 2002
Author(s)
J. L. Bailey, Glenn P. Forney, P. A. Tatem, Walter W. Jones
The modeling of fire and smoke spread is an evolving field. As knowledge is acquired and resources become available, models are enhanced to make their predictions more accurate and/or their computations faster. This paper will discuss the Consolidated Fire

Fire Dynamics Simulator (Version 3): Users Guide (NISTIR 6748)

November 1, 2002
Author(s)
Kevin B. McGrattan, Glenn P. Forney, J E. Floyd, Simo A. Hostikka, Kuldeep R. Prasad
Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) model of fire-driven fluid flow. The software described in this document solves numerically a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow with an

Flat-Phase Loading of a Bose-Einstein Condensate into an Optical Lattice

November 1, 2002
Author(s)
S E. Sklarz, I Friedler, D J. Tannor, Y B. Band, Carl J. Williams
It has been proposed that the adiabatic loading of a Bose-Einstein Condensate into an optical lattice via the Mott-Insulator transition can be used to initialize a quantum computer [D.Jaksch, et al., Phys. Rev. Lett. 81, 3108 (1998)]. The loading of a Bose

Impact of the Trapping of Anode Hot Holes on Silicon Dioxide Breakdown

November 1, 2002
Author(s)
Eric M. Vogel, Da-Wei Heh, J B. Bernstein
Hot holes are injected from the anode and trapped in thin silicon dioxide using constant voltage stress at large gate voltage. By comparing oxides having trapped holes with oxides in which the holes were detrapped, it is shown that the presence of trapped

Instantaneous and noninstantaneous nonlinear effects in femtosecond pulse propagation

November 1, 2002
Author(s)
H K. Eaton, Scott Diddams, A G. van Engen, Tracy S. Clement, A A. Zozulya
Propagation of intense femtosecond pulses in solids and liquids is investigated experimentally and numerically. Experiments in fusd silica reveal complicated spatio-temporal dunamics including temperal pulse splitting and the generation of spectral

Layered Droplet Microstructures in Sheared Emulsions: Finite-Size Effects

November 1, 2002
Author(s)
Jai A. Pathak, M C. Davis, Steven D. Hudson, Kalman D. Migler
We investigate the influence of confinement on the steady state microstructure of emulsions sheared between parallel plates, in a regime where the average droplet dimension is comparable to the gap width between the confining walls. Utilizing droplet

Magnetization Reversal in Half-Metallic Epitaxial CrO 2 Films

November 1, 2002
Author(s)
I L. Siu, William F. Egelhoff Jr., D X. Yang, H D. Chopra
We have investigated the magnetization reversal in thin films of the half-metallic ferromagnet chromium dioxide, CrO 2, grown on single crystal TiO 2 (100) and (110) substrates. X-ray diffraction analysis indicated epitaxial growth of CrO 2 in the rutile

Measurement of the 100 nm NIST SRM 1963 by Laser Surface Light Scattering

November 1, 2002
Author(s)
Thomas A. Germer, George W. Mulholland, Jae Hyun Kim, S H. Ehrman
Accurate sizing of particles deposited on surfaces is important for the semiconductor, optical, and data storage industries. The recent availability of accurate light scattering models for non-ideal conditions enables the determination of particle size

Model-Based Approach to Security Test Automation

November 1, 2002
Author(s)
Mark Blackburn, Robert Busser, Aaron Nauman, Ramaswamy Chandramouli
Security functional testing is a costly activity typically performed by security evaluation laboratories. These laboratories have struggled to keep pace with increasing demand to test numerous product variations. This paper summarizes the results of
Displaying 42776 - 42800 of 74053
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