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Velocity of ultrasound as an indicator of bubble content
human Velocity bubble content gas
2009/7/15
The principle has been evaluated of detecting stationary tissue gas bubbles simply by measuring the velocity of ultrasound. Agar gel has been used to simulate tissue. At wavelengths appreciably larger...
Flow velocity in carotid artery in humans during immersions and underwater swimming
exercise immersion cardiac output underwater swimming
2009/6/12
Heart rate and flow velocity in the common carotid artery were examined on eight subjects in various underwater conditions. The heart rate decreased more markedly during whole-body immersion than duri...
Transcranial Doppler sonographic measurements of middle cerebral artery flow velocity during hyperbaric oxygen exposures
hyperbaric Transcranial Doppler seizure oxygen
2009/6/8
In the present study, experimental exposures to hyperbaric oxygen (HBO2) were performed (30-min exposure to 2.8 bar (280 kPa) pure oxygen). During all phases of the experiment, blood flow velocity in ...
Flow velocity in carotid artery in humans during immersions and underwater swimming
exercise immersion cardiac output underwater swimming
2009/3/30
Heart rate and flow velocity in the common carotid artery were examined on eight subjects in various underwater conditions. The heart rate decreased more markedly during whole-body immersion than duri...
The function of the sensory and motor median nerves was examined in 6 divers during a simulated dive to 360 meters of seawater (msw), with a mixture of helium and oxygen (heliox) as breathing gas. Div...