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Displaying 57901 - 57925 of 74219

A Stewart Platform Lunar Rover

March 3, 1994
Author(s)
Roger V. Bostelman, James S. Albus, Karl Murphy, T M. Tsai, E Amatucci
A lunar version of the Robocrane is being developed at the Robot Systems Division of the National Institute of Standards and Technology (NIST) to address the needs of NASA researchers. The NIST robot, called ROBOCRANE, has three-pairs of rigged legs

Editorial

March 1, 1994
Author(s)
Alan H. Cookson

Fire Service and Fire Science: A Winning Combination

March 1, 1994
Author(s)
R E. Sanders, Daniel M. Madrzykowski
To test their ability to fight high-rise fires, the Louisville Fire Department had to simulate one. And to do that, they needed the help of the National Institute of Standards and Technology.

NIST Hearing Aid Test Procedures and Test Data

March 1, 1994
Author(s)
Randall P. Wagner, E D. Burnett
A description is given of the hearing aid testing done for the Department of Veterans Affairs. Emphasis is given to the determination of the insertion frequency response using Fast Fourier Transform (FFT) techniques, but the other measurements entailed are

Temperature-Dependent Yourn's Modulus of an SIC w /Al 2 O 3 Composite

March 1, 1994
Author(s)
M Weller, H M. Ledbetter
Using a computer-controlled resonant-bar apparatus at frequencies near 5 kHz, we determined the temperature-dependent (86-732 K) Young's modulus of a ceramic-ceramic composite with a 0.30 volume fraction of SiC whiskers in an Al 2O 3 matrix. Using a

The Measurement and Uncertainty of a Calibration Standard for the SEM

March 1, 1994
Author(s)
Joseph Fu, M Croarkin, Theodore V. Vorburger
Standard Reference Material 484 is an artifact for calibration the magnification scale of a Scanning Electron Microscope (SEM) within the range of 1000X to 20000X. Seven issues, SRM-484, and SRM-484a to SRM-484f, have been certified between 1977 and 1992
Displaying 57901 - 57925 of 74219
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