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81. Time Domain Modal Estimation
Published: 1/1/1998
Authors: S Fahey, Jon Robert Pratt
Abstract: In a previous technical feature,2 we described some motives for performing structural dynamic tests and subsequently reviewed some frequency domain techniques for uncovering modal parameters. This time, we take up some applicable time domain algorith ...

82. The NIST Digitally Synthesized Power Calibration Source
Series: Technical Note (NIST TN)
Report Number: 1281
Published: 8/1/1990
Authors: Nile M. Oldham, Owen Brede Laug, Bryan C Waltrip, Jon Robert Pratt

83. How to weigh everything from atoms to apples using the revised SI
Published: Date unknown
Author: Jon Robert Pratt
Abstract: The fact that the unit of mass might soon be derived from the Planck constant, rather than from an artifact standard, can seem daunting and downright baffling when viewed from the vantage point of our day to day perception of mass. After all, at meas ...

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