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Results for “ACCIDENTS, AVIATION”

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At least 253 records · Page 14Linked to original sources
PubMed1986

Effect of seat cushions on human response to +Gz impact.

Human response to vertical (+Gz) impact acceleration was evaluated as a function of various seat cushions, including current operational cushions used in such aircraft as the A-10, F-15, and F-111 and proposed alternative cushions comprised of rate-dependent, slow-recovery polyurethane foams. There were 133 tests conducted of volunteer subjects in seven different experimental conditions, using a vertical deceleration tower facility. The mean peak acceleration of the impact carriage for these tests was 9.85 G (S.D. = 0.07) and the mean carriage velocity change was 8.01 m X s-1 (S.D. = 0.05). Resultant seat loads and head and chest accelerations were significantly higher for the F-111 cushion than for the rate-dependent foam cushions, which included cushions comprised of Confor foam or Temper foam. Resultant head and chest accelerations were also significantly higher for the ACES II cushion than for the rate-dependent foam cushions. Therefore, from an impact protection standpoint, the operational cushions were inferior to the proposed alternative cushions. Operational use of rate-dependent foam cushions is recommended to improve the impact protection performance of escape systems. Flight tests conducted by the USAF Strategic Air Command have shown that these cushions enhance crewmember sitting comfort during long-duration missions.

Acceleration↗
PubMed1979

Accidents as a symptom of alcohol abuse.

This review of the literature on the association between accidents and alcohol abuse presents data from a variety of studies performed in many of the industrial nations of the world. These studies demonstrate a consistent relationship between alcohol abuse and accidents. The family physician should be aware of this association and utilize it in the identification and treatment of his alcoholic patients.

Accidents↗
PubMed1972

Emergency care.

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Accidents, Aviation↗
PubMed1979

Passive resistive torques about long bone axes of major human joints.

Multisegmented total-human-body models play an important role in studies such as vehicle crash victim simulation, pilot ejection and flailing. Proper biomechanical description of the major articulating joints of these mathematical models require passive resistive torque data for the rotational motions of the body segments about their long bone axes. This paper presents a research program which was developed to collect such data at the shoulder, hip, knee, elbow, and ankle joints. The research was conducted, with some obvious limitations, on live human subjects by means of specially designed experimental apparatus. The numerical results are presented for three subjects for the passive resistive torques about the long bone axes of the major articulating joints. It was concluded that the maximum tolerable passive resistive torques associated with the long bones of the lower extremities are more than twice the ones associated with the long bones of the upper extre mities.

Accidents, Aviation↗
PubMed1968

Ruptured liver.

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Abdominal Injuries↗