搜索结果: 1-9 共查到“军事医学与特种医学 Frequency”相关记录9条 . 查询时间(0.033 秒)
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...
Critical flicker frequency (CFF) and subjective fatigue during an oxyhelium saturation dive at 62 ATA
saturation human heliox fatigue neurophysiological performance
2009/7/20
Two divers spent over 50 hours at 610 msw in a helium-oxygen mixture (PO2:0.38-0.52 ATA). The dive duration was 27 days, including predive stages of confinement, compression, time at maximum pressure,...
Voice fundamental frequency levels of divers in helium-oxygen speaking environments
human heliox speaking Voice speech intelligibility
2009/7/20
Divers under hyperbaric conditions experience a marked deterioration in speech intelligibility. Included among the possible features that contribute to speech degradation is change/distrotion of speak...
Influence of nitrous oxide, nitrogen, neon, and helium on the beating frequency of the mouse sinus node at high pressure
cardiac animal mice nitrous oxide nitrogen neon helium sinus node
2009/7/17
The beating frequency (BF) reducing effect of 150 atm of hydrostatic pressure on mammalian cardiac pacemaker tissue (hyperbaric bradycardia) was counteracted by dissolved gas only if the gas was added...
Report of an isolated mid-frequency hearing loss following inner ear barotrauma
hearing human ear barotrauma
2009/7/16
A case describing an isolated mid-frequency hearing loss as a result of inner ear barotrauma is presented. The onset of symptoms was insidious but progressed to a profound total-range hearing loss in ...
Effects of dietary lipids on frequency and force in atrial muscle at 10 MPa
diet lipid cardiac animal rat
2009/7/14
Spontaneously beating atrial preparations, from rats fed different lipid diets, were compressed to 10 MPa. The following observations were made: Different lipid diets altered the ratio of omega-6/omeg...
Effects of hydrostatic pressure,H2,N2,and He,on beating frequency of rat atria
hydrogen nitrogen animal rat cardiovascular helium
2009/7/9
Hydrostatic compression to 15 MPa caused a drop in spontaneous beating frequency (BF) of isolated rat atria kept in tris solution at 37 degrees C by 30.6 +/- 7.2%. Introduction of superfusing solution...
Recreational scuba divers' aversion to low-frequency underwater sound
low frequency underwater sound diver
2009/6/5
Increasing use of active low-frequency sonar by submarines and ships raises the risk of accidental exposure of recreational divers to low-frequency underwater sound (LFS). This study aimed to characte...
Effects of hydrostatic pressure, H2, N2, and He, on beating frequency of rat atria
hydrogen nitrogen animal rat cardiovascular helium
2009/3/30
Hydrostatic compression to 15 MPa caused a drop in spontaneous beating frequency (BF) of isolated rat atria kept in tris solution at 37 degrees C by 30.6 +/- 7.2%. Introduction of superfusing solution...