34 resultados para Full-scale Physical Modelling
em University of Michigan
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Mode of access: Internet.
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Federal Highway Administration, Office of Research and Development, Washington, D.C.
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Federal Highway Administration, Office of Research and Development, Washington, D.C.
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National Highway Traffic Safety Administration, Office of Heavy Duty Vehicle Research, Washington, D.C.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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"Progress report of the work done on Research Project Sr-96 under Contract NObs-31217 between the Bureau of Ships, Navy Department and the Pennsylvania State College."
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"The Bureau of Physical Research has prepared this report primarily from two reports submitted by Cornell Aeronautical Laboratory... 'Summary report of highway barrier analysis and test program' July 1961, and 'Analysis and prediction of the performance of highway barrier' October 1962."
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Transportation Systems Center, Cambridge, Mass.
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National Highway Traffic Safety Administration, Washington, D.C.
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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.