Orbital Blow Out Fractures In Dogs Produced By Air Blast

Author : Donald R. Richmond,D. R. Pratt,Clayton S. White
Publisher : Unknown
Page : 60 pages
File Size : 54,6 Mb
Release : 1962
Category : Blast effect
ISBN : UOM:39015095211572

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Orbital "blow-out" Fractures in Dogs Produced by Air Blast by Donald R. Richmond,D. R. Pratt,Clayton S. White Pdf

The data indicate that orbital fractures (caused by the eyeball and other intra-orbital tissues hydraulically transmitting the pressure-load to the walls of the orbit more rapidly than counter pressure developed in the air-containing areas bordering the orbit) occurred at maximal pressures above 140 psi provided they reached a peak in less than 30 msec. The incidence of "blow-out" fractures is discussed along with the significance of this lesion in relation to other blast-produced injuries.

Author : Clayton S. White,I. Gerald Bowen,Donald R. Richmond
Publisher : Unknown
Page : 260 pages
File Size : 51,5 Mb
Release : 1965
Category : Fallout shelters
ISBN : UOM:39015095225390

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Biological Tolerance to Air Blast and Related Biomedical Criteria by Clayton S. White,I. Gerald Bowen,Donald R. Richmond Pdf

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.

Author : Donald R. Richmond,Victor R. Clare,Clayton S. White
Publisher : Unknown
Page : 52 pages
File Size : 49,5 Mb
Release : 1962
Category : Blast effect
ISBN : UOM:39015095211606

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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,Victor R. Clare,Clayton S. White Pdf

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.

Author : Donald R. Richmond,Clayton S. White
Publisher : Unknown
Page : 62 pages
File Size : 43,7 Mb
Release : 1962
Category : Blast effect
ISBN : UOM:39015095211614

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A Tentative Estimation of Man's Tolerance to Overpressures from Air Blast by Donald R. Richmond,Clayton S. White Pdf

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.

Author : Anonim
Publisher : Unknown
Page : 1468 pages
File Size : 50,9 Mb
Release : 1963-04
Category : Nuclear energy
ISBN : PSU:000047758483

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Nuclear Science Abstracts by Anonim Pdf

Author : Donald R. Richmond,Edward G. Damon,E. Royce Fletcher,I. Gerald Bowen,Clayton S. White
Publisher : Unknown
Page : 60 pages
File Size : 48,7 Mb
Release : 1966
Category : Atomic bomb
ISBN : UOM:39015095209311

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The Relationship Between Selected Blast-wave Parameters and the Response of Mammals Exposed to Air Blast by Donald R. Richmond,Edward G. Damon,E. Royce Fletcher,I. Gerald Bowen,Clayton S. White Pdf

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.

Author : Kenneth Merle Brinkhous
Publisher : Unknown
Page : 262 pages
File Size : 47,5 Mb
Release : 1970
Category : Accidents
ISBN : MINN:30000011644659

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Proceedings by Kenneth Merle Brinkhous Pdf

Author : United States. National Highway Safety Bureau
Publisher : Unknown
Page : 270 pages
File Size : 53,6 Mb
Release : 1970
Category : Accidents
ISBN : MINN:31951000047794R

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Accident Pathology by United States. National Highway Safety Bureau Pdf

Author : Anonim
Publisher : Unknown
Page : 60 pages
File Size : 48,9 Mb
Release : 1976
Category : Government publications
ISBN : IND:30000035537376

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Body Armor by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 674 pages
File Size : 49,7 Mb
Release : 1963
Category : Acceleration (Physiology)
ISBN : MINN:319510000605603

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Biomedical Research Studies in Acceleration, Impact, Weightlessness, Vibration, and Emergency Escape and Restraint Systems by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 276 pages
File Size : 45,7 Mb
Release : 1970
Category : Electronic
ISBN : STANFORD:24501659459

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Accident pathology by Anonim Pdf

Author : Anonim
Publisher : National Academies
Page : 376 pages
File Size : 45,9 Mb
Release : 1965
Category : Air raid shelters
ISBN : NAP:15307

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Protective Structures for Civilian Populations by Anonim Pdf

Author : Otfried Messerschmidt
Publisher : Unknown
Page : 284 pages
File Size : 50,7 Mb
Release : 1979
Category : Disaster medicine
ISBN : UOM:39015021689073

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Medical Procedures in a Nuclear Disaster by Otfried Messerschmidt Pdf

Author : Anonim
Publisher : Unknown
Page : 104 pages
File Size : 53,5 Mb
Release : 19??
Category : Electronic
ISBN : CORNELL:31924108978952

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CEX by Anonim Pdf

Author : New York Academy of Sciences
Publisher : Unknown
Page : 930 pages
File Size : 41,8 Mb
Release : 1968
Category : Building
ISBN : STANFORD:36105036074131

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Prevention of and Protection Against Accidental Explosion of Munitions, Fuels and Other Hazardous Mixtures by New York Academy of Sciences Pdf