Use of Helium-oxygen Mixtures in Mixed-gas Scuba Oxygen Limits Operation Pulse-beat PDF Download
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Category :
Languages : en
Pages : 34
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Book Description
Eighty dives were executed to explore the use of helium-oxygen mixtures in mixed-gas diving with regard to oxygen toxicity. The double-blind technique was used to test 40% and 50% oxygen in helium mixtures at eight depth-time intervals. The Experimental Diving Unit method of underwater electrocardiography was used for the first time in an attempt to predict the onset of oxygen toxicity prior to the convulsion manifestations. No evidence of oxygen toxicity was exhibited even though the presently accepted depth-time oxygen exposure limits were greatly exceeded. (Author)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
Eighty dives were executed to explore the use of helium-oxygen mixtures in mixed-gas diving with regard to oxygen toxicity. The double-blind technique was used to test 40% and 50% oxygen in helium mixtures at eight depth-time intervals. The Experimental Diving Unit method of underwater electrocardiography was used for the first time in an attempt to predict the onset of oxygen toxicity prior to the convulsion manifestations. No evidence of oxygen toxicity was exhibited even though the presently accepted depth-time oxygen exposure limits were greatly exceeded. (Author)
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Category : Mines and mineral resources
Languages : en
Pages : 1140
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Author:
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ISBN:
Category :
Languages : en
Pages : 102
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Author: Robert D. Workman
Publisher:
ISBN:
Category :
Languages : en
Pages : 70
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Book Description
A decompression procedure for use of helium-oxygen mixtures in mixed gas SCUBA to permit repetitive dives to a depth of 200 feet has been developed employing modified Haldane principles. The repetitive diving procedure provides a system by which a diver can determine the necessary increase in decompression time on successive dives, based on the amount of excess inert gas tension in body tissues after completion of previous dives. The amount of decompression required is decreased by the time interval at the surface between dives. The information required for use of this system is obtained from four tables: (1) Decompression table (2) No decompression dive table (3) Surface interval credit table and (4) Repetitive dive time table. A method for use of oxygen decompression at 30 and 20 foot water stops is also provided. The validity of this procedure is based on tests of 486 dives in which 28 three-dive series and 68 oxygen decompression dives were made. The procedure as reported is considered satisfactory and is recommended for further testing under operational conditions in the field before service-wide use. (Author).
Author: Carla W. Cherry
Publisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 536
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Author: United States. Navy. Experimental Diving Unit
Publisher:
ISBN:
Category : Decompression (Physiology)
Languages : en
Pages : 448
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Author: Royd Ray Sayers
Publisher:
ISBN:
Category : Animal experimentation
Languages : en
Pages : 18
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Author: Charles Bowers Momsen
Publisher:
ISBN:
Category : Decompression (Physiology)
Languages : en
Pages : 0
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Book Description
Topics include: General discussion of the development of the project; Example of computation of a decompression table for use with helium- oxygen diving; Helium decompression tables up to 450 feet; Instructions for mixing helium and oxygen for use in diving; Instructions for using helium-oxygen gas mixtures for diving; Influence of exercise on decompression requirements; The treatment of compressed air illness utilizing oxygen; Respiratory resistance, oil-water solubility, and mental effects of argon, compared with helium and nitrogen.
Author: Tom Mount
Publisher: Watersport Publishing
ISBN:
Category : Sports & Recreation
Languages : en
Pages : 424
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Author:
Publisher:
ISBN:
Category : Human engineering
Languages : en
Pages : 590
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