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Comparison of U.S.Navy air decompression tables by gas-loading analysis
decompression gas loading inert gas Comparison
2009/7/20
Comparison of U.S.Navy air decompression tables by gas-loading analysis.
Effects of helium gas on heart rate and oxygen consumption in unanesthetized rats
drug helium diving physiology animal rat
2009/7/20
Effects of helium gas on heart rate and oxygen consumption in unanesthetized rats.
The effects of increased gas density on pulmonary mechanics
nitrogen human neon pulmonary respiratory Helium Work of Breathing
2009/7/20
The effects of increased gas density on pulmonary mechanics.
Calculation of the relative speed of sound in a gas mixture
frequency spectrum speed sound gas mixture
2009/7/20
Since the frequency spectrum of a voice signal is directly dependent on the velocity of sound, studies of speech spectra include the problem of calculating the speed of sound in the gas mixture being ...
A theoretical method is derived for computation of the interactin of pressure and a weak anesthetic such as nitrogen or other narcotic gases in a two-dimensional material so as to prevent signs and sy...
Decompression-induced bubble formation in salmonids:comparison to gas bubble disease
decompression bubble salmonids
2009/7/20
The relationship of gas bubble disease (GBD) in fish to decompression-induced bubble formation was investigated with salmonids. Acute bioassays were used to determine equilibration times for critical ...
Respiratory gas exchange and lung perfusion in man during and after head-out water immersion
CO2 carbon dioxide carbon monoxide pulmonary human CO
2009/7/20
The respiratory gas exchange for O2, CO2, and CO has been studied in nine healthy male subjects before, during, and after head-out water immersion. Distribution of lung perfusion and ventilation were ...
Gas phase separation during decompression in man:ultrasound monitoring
decompression human Doppler
2009/7/20
During two dive series, one to 132 fsw and one to 210 fsw, Doppler ultrasonic bubble detectors were used to monitor venous gas bubbles in divers during decompression and for 30 min thereafter. Various...
The purpose of this review is to examine the validity of change in the cortical evoked response as a measure of inert gas narcosis in humans. Three criteria are defined which must all be met if a nonb...
Effect of heat and cold stress on inert gas (133xenon) exchange in the rabbit
Effect heat cold stress inert gas (133xenon) exchange rabbit
2009/7/20
Effect of heat and cold stress on inert gas (133xenon) exchange in the rabbit.
Steady-state gas exchange in normothermic,anesthetized,liquid-ventilated dogs
Fluorocarbons liquid ventilated respiration animal dog
2009/7/17
Anesthetized, paralyzed, purebred beagle dogs were ventilated for 45 min (n = 5) and 60 min (n = 5) with oxygenated (PIO2 = 685 mmHg) FC-80 fluorocarbon liquid at 38 degrees C. The PaCO2 remained cons...
Ultrasonic imaging system for the study of decompression-induced gas bubbles
Ultrasonic Imaging equipment bubble
2009/7/17
An high-resolution pulse echo ultrasonic imaging system has been developed to study decompression-induced gas bubbles. It was considered necessary that the system be capable of detecting gas bubbles w...
Diffusion and nucleation of gas in gel and some implications for the development of decompression procedures
decompression human nucleation Gelatin Diffusion
2009/7/17
Attention is directed to certain incongruities among accepted diving procedures in order to emphasize the need for a more complete understanding of the interactions between the factors involved in div...
Diffusion-dependence of pulmonary gas mixing at 5.5 and 9.5 ATA
human Gas-phase diffusivity pulmonary gas mixing
2009/7/17
Gas-phase diffusivity is inversely proportional to pressure, so mixing of inspired gas in the lung can be expected to be poor in hyperbaric environments. Subjects performed multiple-breath wash-in of ...
Influence of increased gas density and external resistance on maximum expiratory flow
human respiratory lung pressure
2009/7/17
The effect of external resistance on the relationship of expiratory air flow and intrathoracic and mouth pressure on subjects breathing gas of increased density was investigated. Five subjects breathi...