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The Overpressure Duration Relationship And Lethality In Small Animals
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Book Synopsis The Overpressure-duration Relationship and Lethality in Small Animals by : Donald R. Richmond
Download or read book The Overpressure-duration Relationship and Lethality in Small Animals written by Donald R. Richmond and published by . This book was released on 1962 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 993 mice, rats, guinea pigs and rabbits were exposed to sharp-rising overpressures of various short durations. They were mounted on a concrete pad above which high-explosive charges, ranging in weight from 0.50 oz to 64 lbs, were detonated. Pressure-time measurements were obtained with pencil-type and shock-tube piezo-electric gauges on the pad directly beneath the charges. The duration of the blast waves ranged from 0.40 msec to 6.8 msec. The LD-50 pressures were calculated for each species at the different pulse durations. In general, the pressures required to produce 50-percent lethality rose at the shorter durations. Combining the results of this study with those from previous shock-tube investigations made it possible to define the tolerance of four small-animal species to sharply rising overpressures as a function of pulse duration.
Book Synopsis The Overpressure-duration Relationship and Lethality in Small Animals by : D. R. Richmond
Download or read book The Overpressure-duration Relationship and Lethality in Small Animals written by D. R. Richmond and published by . This book was released on 1962 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 993 mice, rats, guinea pigs and rabbits were exposed to sharp-rising overpressures of various short durations. They were mounted on a concrete pad above which high-explosive charges, ranging in weight from 0.50 oz to 64 lbs, were detonated. Pressure-time measurements were obtained with pencil-type and shock-tube piezo-electric gauges on the pad directly beneath the charges. The duration of the blast waves ranged from 0.40 msec to 6.8 msec. The LD-50 pressures were calculated for each species at the different pulse durations. In general, the pressures required to produce 50-percent lethality rose at the shorter durations. Combining the results of this study with those from previous shock-tube investigations made it possible to define the tolerance of four small-animal species to sharply rising overpressures as a function of pulse duration.
Book Synopsis THE OVERPRESSURE-DURATION RELATIONSHIP AND LETHALITY IN SMALL ANIMALS. Technical Progress Report by :
Download or read book THE OVERPRESSURE-DURATION RELATIONSHIP AND LETHALITY IN SMALL ANIMALS. Technical Progress Report written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 993 mice, rats, guinea pigs, and rabbits were exposed to sharp-rising overpressures of various short durations. They were mounted on a concrete pad above which high-explosive charges, ranging in weight from 0.50 oz to 64 lbs, were detonated. Pressure-time measurements were obtained with pencil- type and shock-tube piezo-electric gauges on the pad directly beneath the charges. The duration of the blast waves ranged from 0.40 to 6.8 msec. The LD50 pressures were calculated for each species at the different pulse durations. In general, the pressures required to produce 50% lethality rose at the shorter durations. Combining the results of this study with those from previous shock- tube investigations made it possible to define the tolerance of four small-animal species to sharply rising overpressures as a function of pulse duration. (auth).
Book Synopsis Accident Pathology by : United States. National Highway Safety Bureau
Download or read book Accident Pathology written by United States. National Highway Safety Bureau and published by . This book was released on 1970 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Proceedings by : Kenneth Merle Brinkhous
Download or read book Proceedings written by Kenneth Merle Brinkhous and published by . This book was released on 1970 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Tolerance to Air Blast and Related Biomedical Criteria by : Clayton S. White
Download or read book Biological Tolerance to Air Blast and Related Biomedical Criteria written by Clayton S. White and published by . This book was released on 1965 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experience with animals exposed in a variety of above and below ground structures during full-scale field operations at the Nevada Test Site in 1953, 1955 and 1957 were reviewed. The data were assembled and summarized to illustrate the nature of the blast-induced problems of significance in protective shelters, "open" as well as "closed". Potential hazards were related to the following: various patterns of variation in environmental pressure; translational events associated with transient, high-velocity winds, ground shock and gravity involving the impact of energized inanimate objects on the one hand the the consequences of whole-body displacement on the other; non-line-of-site thermal phenomena including hot objects and rapidly moving hot, dust- laden air and debris; and dust, in the respirable size range, sufficiently high in concentration even in "closed" shelters as to warrant design measures to minimize or eliminate the occurrence of small particulates whether arising from wall spalling or otherwise. Tentative biological criteria, conceived to help assess human hazards from blast-related phenomena, were presented. Relevant data from the literature and on- going research in environmental medicine were set forth to aid the reader in appreciating how the criteria were formulated, what information was extrapolated from animal data, and wherein "best estimates" were employed. "State-of-the-art" concepts were noted to emphasize areas in which more thinking and research must continue if more refined, complete and adequate criteria are to be forthcoming for assessing man's response to blast-induced variation in his immediate environment.
Book Synopsis The Tolerance of Guinea Pigs to Air Blast when Mounted in Shallow, Deep, and Deep-with-offset Chambers on a Shock Tube by : Donald R. Richmond
Download or read book The Tolerance of Guinea Pigs to Air Blast when Mounted in Shallow, Deep, and Deep-with-offset Chambers on a Shock Tube written by Donald R. Richmond and published by . This book was released on 1962 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: One hundred and eighteen guinea pigs were exposed to air blast in shallow, deep, and deep-with-offset chambers mounted on a shock tube. The LD(50)- 24 hours, in terms of the incident shock pressures measured adjacent to the chambers, was calculated by probit analysis to be 34.9 psi, 19.5 psi, and 26.8 psi for animals in the shallow, deep, and deep-with-offset chambers, respectively. According to the LD(50) incident pressures, the shallow chambers offered the most protection against air blast; the deep chambers, the least. Comparing the LD(50)pressure dose at the animals' location revealed little difference in their tolerance to overpressure, per se; i.e., LD(50) reflected pressures measured by gauges within the deep and deep-with-offset chambers were 34.6 psi and 35.9 psi, respectively. The LD(50) incident shock pressure of 34.9 psi in the shallow chambers was considered to be the dose at the animal's location in that instance. The protection against blast provided by the three chambers and the response of animals to the particular pressure time patterns encountered are discussed.
Book Synopsis The Relationship Between Selected Blast-wave Parameters and the Response of Mammals Exposed to Air Blast by : Donald R. Richmond
Download or read book The Relationship Between Selected Blast-wave Parameters and the Response of Mammals Exposed to Air Blast written by Donald R. Richmond and published by . This book was released on 1966 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: For personnel standing or prone-side-on to the charge when it is detonated at or near the surface, the side-on incident plus dynamic pressures become the effective pressure; however, with orientations end-on in this situation, only the side-on incident pressure appears to be the maximal effective pressure.
Book Synopsis Technical Abstract Bulletin by : Defense Documentation Center (U.S.)
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1964 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research Reports by :
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1963 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1967 with total page 1172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Tentative Estimation of Man's Tolerance to Overpressures from Air Blast by : Donald R. Richmond
Download or read book A Tentative Estimation of Man's Tolerance to Overpressures from Air Blast written by Donald R. Richmond and published by . This book was released on 1962 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tentative estimates of the sharp-rising overpressures as a function of duration which represent a lethal hazard to the 70-kg animal 1, 50 and 99 per cent of the time were presented. The predictions were based on interspecies correlations and extrapolations encompassing blast-tolerance data for six mammalian species. The tentative application of the data to indicate human blast tolerance was discussed and relevant uncertainties in the estimates were emphasized. It was also pointed out that biologic tolerance would be different for air-blast pulses having non-ideal wave forms frequently associated with various geometries of exposure. Selected pathophysiological information pertinent to the biological response following blast exposure was given; namely survival time and selected postshot observations of dogs and goats.
Book Synopsis Prevention of and Protection Against Accidental Explosion of Munitions, Fuels and Other Hazardous Mixtures by : New York Academy of Sciences
Download or read book Prevention of and Protection Against Accidental Explosion of Munitions, Fuels and Other Hazardous Mixtures written by New York Academy of Sciences and published by . This book was released on 1968 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioastronautics and the Exploration of Space by : Theodore C. Bedwell
Download or read book Bioastronautics and the Exploration of Space written by Theodore C. Bedwell and published by . This book was released on 1965 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings by : Theodore Cleveland Bedwell
Download or read book Proceedings written by Theodore Cleveland Bedwell and published by . This book was released on 1968 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography Related to Human Factors System Program by : Richard J. Potocko
Download or read book Bibliography Related to Human Factors System Program written by Richard J. Potocko and published by . This book was released on 1964 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
