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Displaying 46901 - 46925 of 73985

Spin-Polarized Electrons

January 1, 2001
Author(s)
Daniel T. Pierce, Robert Celotta
The electron-sodium system is an excellent prototype of non-relativistic electron scattering from a quasi-one-electron atomic target, and is tractable both experimentally and theoretically. Recently, this system has been studied in a series of

Stability Analysis of Interrupted Cutting With Finite Time in the Cut

January 1, 2001
Author(s)
P V. Bayly, J E. Halley, Matthew A. Davies, Jon R. Pratt
The stability of interrupted cutting is examined for the case in which the tool is in contact with the work piece for a small, but finite, fraction of the tooth-passing period. A model of a single degree-of-freedom tool excited by intermittent

Standards for Reliability Testing of Heavy Vehicle Propulsion Materials

January 1, 2001
Author(s)
S Jahanmir, James F. Kelly, William E. Luecke
The objective of this project is to develop international standard test methods for assessing the reliability of ceramic components used in diesel engines and other heavy vehicle propulsion systems. Advanced ceramics such as silicon nitride offer a unique

Statistics and Measurements

January 1, 2001
Author(s)
C M. Croarkin
For more than 50 years, the Statistical Engineering Division (SED) has been instrumental in the success of a broad spectrum of metrology projects at NBS/NIST. This paper highlights fundamental contributions of NBS/NIST statisticians to statistics and to

Strategies for Standardizing EDS Measurements

January 1, 2001
Author(s)
Nicholas Ritchie
Energy dispersive X-ray spectrometers (EDS) are capable of precise and accurate electron beam measurements of composition. However, the optimal strategies for acquiring EDS standards differ from its wavelength dispersive cousin. There is a lot more
Displaying 46901 - 46925 of 73985
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