999 resultados para Northwest Watershed Research Center (U.S.)


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Report 1 of this report is issued as Coastal Engineering Research Center, Coastal engineering technical aid no. 82-1; Report 2 is issued as Coastal engineering technical aid no. 82-4.

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"Monitored by Coastal Engineering Research Center, US Army Engineer Waterways Experiment Station."

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Shock tubes have been used successfully by a number of investigators to study the biological effects of variations in environmental pressures (1,2,3). Recently an unusually versatile laboratory pressurization source became available with the capability of consistently reproducing a wide variety of pressure-time phenomena of durations equal to and well beyond those associated with the detonation of nuclear devices (4). Thus it became possible to supplement costly full-scale field research in blast biology carried out at the Nevada Test Site (5,6) by using an economical yet realistic laboratory tool. In one exploratory study employing pressure pulses of 5 to 10 sec duration wherein the times to max overpressure and the magnitudes of the overpressures were varied, a relatively high tolerance of biological media to pressures well over 150 psi was demonstrated (7). In contrast, the present paper will describe the relatively high biological susceptibility to long duration overpressures in which the pressure rises occurred in single and double fast-rising steps.

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Shipping list no.: 97-0340-P.

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"September 1991"--P. [4] of cover.

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Mode of access: Internet.

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"NPS D-415"-- P. [3] of cover.

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No. 7 issued as Ohio State University. Columbus. Institute of Polar Studies, Report, no. 20.

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Some numbers in revised editions.