搜索结果: 1-15 共查到“军事医学与特种医学 respiratory”相关记录24条 . 查询时间(0.377 秒)
Respiratory flow rates in the sea lion.
Heart rate and respiratory frequency in hydrostatically compressed,liquid-breathing mice
decompression liquid breathing
2009/7/20
The effects of hydraulic compression on heart rate and respiratory frequency were studied in liquid-breathing, hypothermic (17-31 degrees C) mice. Increasing the hydrostatic pressure caused a bradycar...
Changes in rat respiratory behavior under varying PCO2 levels and argon content in hyperbaric Ar-O2-CO2 atmospheres
respiratory carbon dioxide argon animal rat
2009/7/20
An anesthetized rat preparation has been used for breathing studies in hyperbaric Ar-O2-CO2 atmospheres in which total saturation pressure was varied in the range 1-19.1 ATA and PCO2 was set at levels...
Effects of a hyperbaric environment on respiratory and monoamine oxidase activities
hyperbaric respiratory monoamine oxidase
2009/7/20
The effects of a prolonged hyperbaric environment (21 ATA He-O2, 200 +/- 30 mm Hg O2, 32.5 +/- 1 degrees C) were investigated on the respiratory activity of rat liver homogenates and the activity of m...
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 ...
Effects of increased O2-N2 pressure and breathing apparatus on respiratory function
human nitrox exercise breathing apparatus respiratory work of breathing
2009/7/20
The ventilatory response of four subjects was measured at rest and various intensities of exercise. Experiments were conducted in a dry pressure chamber (1) at 1 ATA and 4 ATA with the subjects breath...
Effects of CO2 insensitivity and respiratory pattern on respiration in divers
human respiratory CO2 insensitivity carbon dioxide retainer
2009/7/16
In a study of respiratory function under hyperbaric conditions one diver (TM) was found to have an extremely low ventilatory response to exercise with a postinspiratory pause typical of certain "carbo...
Respiratory function during simulated wet dives
human Respiratory exercise Work of Breathing
2009/7/15
This presentation focuses on the effects of static lung loading (SLL) on diver performance. It is noted that SLL may arise from depth differences between the diver's chest and his breathing gear. Stud...
A comparison of respiratory function in divers breathing with a mouthpiece or a full face mask
exercise equipment mouthpiece full face mask respiratory dead space
2009/7/14
A comparison was made of respiratory function in submersed divers breathing with either a mouthpiece or a full face mask while exposed to varying depths (15 and 190 fsw), exercise loads (0-175 W), and...
The electrical-respiratory analogy when gas density is high
pulmonary Respiration dense gas work of breathing
2009/7/14
The respiratory system can be considered analogous to a remarkably simple alternating-current electrical system with a resistor, an inductor, and a capacitor in series. This communication extrapolates...
Respiratory and cardiovascular responses to cold stress following repeated cold water immersion
cold CO2 carbon dioxide cardiac output air immersion Respiratory cardiovascular
2009/7/9
The effects of cold acclimation (CA) on the cardiorespiratory responses to cold air and water stress tests (CST) were studied in 7 males before and after a CA program of daily 90-min cold water (18 de...
Adaptations to deep breath-hold diving: respiratory and circulatory mechanics
nitrogen breath-hold respiratory circulatory
2009/7/9
Respiration and circulation in diving mammals are characterized by interrelated adaptations of structure, function, and behavior that are incompletely described and understood. This speculative survey...
Breath-by-breath monitoring of respiratory gas concentrations during compression and decompression
CO2 carbon dioxide equipment decompression nitrogen hyperbaric chamber
2009/7/8
We compared six systems for sampling respiratory gases from within a hyperbaric chamber to provide online gas concentrations by a mass spectrometer (MS) outside the chamber. Gas at hyperbaric pressure...
Respiratory effects of warm and dry air at increased ambient pressure
dry air pressure Respiratory
2009/7/8
We have measured in 7 divers forced vital capacity (FVC), forced expired volume in 1 s (FEV1), and forced midexpiratory flow rate (FEF25-75%) before and after exposure to dry or humid breathing gas of...
Effects of hyperbarism on central respiratory drive and respiratory pattern in humans
multiplace dry hyperbaric
2009/6/12
The aim of our study was to evaluate the effects of increasing pressure (from 1 to 3 and 6 atm abs) on respiratory drive, respiratory pattern, and inspiratory impedance of the respiratory system. Seve...