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Displaying 8401 - 8425 of 9859

Generalization of a Two-Dimensional Micromagnetic Model to Nonuniform Thickness

June 1, 2001
Author(s)
Donald G. Porter, Michael J. Donahue
A two-dimensional micromagnetic model is extended to support simulation of films with non-uniform thickness. Zeeman and crystalline anisotropy energies are scaled by the local thickness, and exchange interaction between neighbor elements is scaled by the

XML Technologies

September 1, 2000
Author(s)
Mary C. Brady, Carmelo Montanez-Rivera, Richard M. Rivello, Lisa J. Carnahan
An Internet language called the Extensible Markup Language (XML) is rapidly becoming one of the most popular languages in the world. XML is being incorporated into many Internet Web pages and applications; it is particularly useful for those involving

Filler-Induced Composition Waves in Phase-Separating Polymer Blends

November 1, 1999
Author(s)
B P. Lee, Jack F. Douglas, S C. Glotzer
The influence of a dilute concentration of filler particles on polymer blend phase separation is investigated computationally using a generalization of the Cahn-Hilliard-Cook (CHC) theory to include model filler particles (spheres, fibers, platelets)

Global Model for Predicting the Burning Rates of Liquid Pool Fires (NISTIR 6381)

September 1, 1999
Author(s)
Anthony P. Hamins, Jiann C. Yang, Takashi Kashiwagi
A global model is presented which predicts the mass burning flux for pool fires consuming liquid fuels in a quiescent environment. the model assumes constant bulk properties such as flame temperature, soot volume fraction, and species concentration. The

Graphical User Interfaces

July 5, 1999
Author(s)
Jean C. Scholtz
This chapter on graphical user interfaces gives the reader the history of interfaces of this type and some evidence from user studies about the usefulness of graphical interfaces. The different types of architectures used in applications with graphical

Image Sharpness Measurement in Scanning Electron Microscope - Part III

July 1, 1999
Author(s)
Samuel N. Jones, Robert D. Larrabee, Michael T. Postek, Andras Vladar, Nien F. Zhang
Fully automated or semi-automated scanning electron microscopes (SEM) are now commonly used in semiconductor production and other forms of manufacturing. Testing and proving that the instrument is performing at a satisfactory level of sharpness is an

A Virtual Assembly Design Environment

March 13, 1999
Author(s)
Sankar Jayaram, Yong Wang, Uma Jayaram, Kevin W. Lyons, Peter F. Hart
The Virtual Assembly Design Environment (VADE) is a Virtual Reality (VR) based engineering application which allows engineers to evaluate, analyze, and plan the assembly of mechanical systems. This system focuses on utilizing an immersive virtual

The Performance of Transit Time Flowmeters in Heated Gas Mixtures

June 1, 1998
Author(s)
John D. Wright
An ultrasonic transit time flowmeter was tested over Reynolds numbers from 1000 to 100,000 in a calibration facility that generates gas flows with controlled temperature and composition. The gas mixtures were composed of air, nitrogen, carbon dioxide

An Analysis of AP213 for Usage as a Process Plan Exchange Format

January 1, 1997
Author(s)
Michael Iuliano, Albert W. Jones, Shaw C. Feng
The objective of the Computer-Aided Manufacturing Engineering (CAME) project is to identify generic interfaces which can be used to demonstrate the integration of manufacturing engineering software applications. A number of software tool kits are

Simplified Design Procedure for Hybrid Precast Concrete Connections

February 1, 1996
Author(s)
Geraldine S. Cheok, William C. Stone, S. D. Nakaki
A rational design procedure is presented to compute the probable moment, the nominal moment, and the story drift capacities of a hybrid precast moment-resisting beam-to-column connection. The hybrid connections consist of mild steel which is used to

Evaluation of Sprinkler Activation Prediction Methods

March 15, 1995
Author(s)
Daniel M. Madrzykowski
The objective of this study was to evaluate the ability of sprinkler activation models to predict activation time. Large scale compartment fire tests were used to obtain activation times for four different types of sprinklers. The tests were conducted in

Toxicity Data for Fire Hazard Analysis

October 27, 1992
Author(s)
Richard G. Gann, Vyto Babrauskas, E Braun, Barbara C. Levin, M Paabo, Richard H. Harris Jr., Richard D. Peacock, S Yusa
A comprehansive methodology has been developed for obtaining and using smoke toxicity data for fire hazard analysis. The methodology comprises: determination that the post-flashover fire is the propert focus of smoke inhalation deaths; criteria for a
Displaying 8401 - 8425 of 9859
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