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Displaying 55551 - 55575 of 74202

GPS Aided Retrotraverse For Unmanned Ground Vehicles

April 1, 1996
Author(s)
Karl Murphy, Steven Legowik
A computer controlled HMMWV automatically retraces a previously recorded path using navigation data, a process we have termed retrotraverse. A Kalman filter combines the output of two navigation systems, an inertial dead reckoning system and a differential

Inhibition of Premixed Methane-Air Flames by Fluoromethanes

April 1, 1996
Author(s)
Gregory T. Linteris, L Truett
This paper presents the first calculations and measurements of the burning velocity of premixed hydrocarbon flames inhibited by the three one-carbon fluorinated species CH2F2, CF3H, and CF4. The chemistry of these agents is expected to be similar to that

Magneto-Optical Indicator Film (MOIF) Microscopy of Granular and Layer Structures (Abstract)

April 1, 1996
Author(s)
Valerian I. Nikitenko, V S. Gornakov, L M. Dedukh, A F. Khapikov, Lawrence H. Bennett, Robert D. McMichael, L Swartzendruber, Alexander J. Shapiro, Michael J. Donahue, V N. Matveev, V I. Levashov
We report on the possibilities of application of magneto-optical indicator film (MOIF) technique for visualization and direct experimental study in real time of the magnetization processes and nondestructive characterization of the quality of magnetic thin

Models for Relating Scanning Electron Microscopy Images to Measured Artifacts

April 1, 1996
Author(s)
Michael T. Postek, Andras Vladar, J R. Lowney
A specific example of a technique we developed to enhance the information obtained from SEM images is the extraction of an approximate profile corresponding to an electron beam with zero beam diameter from one with a finite beam diameter. Results were

Systems Integration for Manufacturing Applications Program 1995 Annual Report

April 1, 1996
Author(s)
James E. Fowler, Mark E. Luce
Computer representations for machine tools, cutting tools, and associated hardware are used within a variety of manufacturing software applications. Currently there is no agreed-upon mechanism for representing such manufacturing resource data and as a

Analysis of High Bay Hangar Facilities for Detector Sensitivity and Placement.

March 26, 1996
Author(s)
Kathy A. Notarianni, William D. Davis, Darren Lowe, J E. Gott, S Laramee
This study was conducted to investigate the response of various fire detectors and automatic sprinklers in high bay aircraft hangars. Laboratory and full-scale experiments as well as computer modeling were conducted to better understand the movement of

Inhibition of Flames by Condensed-Phase Agents

March 26, 1996
Author(s)
Gregory T. Linteris, D Reinelt
The ban on the production of the fire suppressant CF3Br has created a need for replacement agents. Obvious alternatives are other halogenated hydrocarbons, and much research has recently been devoted to understanding their relative performance and
Displaying 55551 - 55575 of 74202
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