The Use of Non-explosive Mixtures of Hydrogen and Oxygen for Diving PDF Download
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Author: William P. Fife
Publisher:
ISBN:
Category : Deep diving
Languages : en
Pages : 100
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Book Description
The purpose of this report is to place under one cover a summary of hydrogen-oxygen (hydrox) diving to date, and a detailed description of the techniques which have been developed to conduct such diving in this laboratory
Author: William P. Fife
Publisher:
ISBN:
Category : Deep diving
Languages : en
Pages : 100
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Book Description
The purpose of this report is to place under one cover a summary of hydrogen-oxygen (hydrox) diving to date, and a detailed description of the techniques which have been developed to conduct such diving in this laboratory
Author: William P. Fife
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
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Book Description
Simulated dives were made with dogs to a depth equivalent to 1000 feet of Sea water (305 meters). Sixteen of these animals breathed a non-explosive hydrogen-oxygen mixture (hydrox) containing no more than 3% oxygen, while 12 breathed gas mixtures containing helium in place of hydrogen. In a number of dives, animals were exposed to hydrogen continuously for between 96-100 hours, 48 of which was spent at 1000 FSW. Extensive pre- and post-dive blood enzyme and hematological studies were carried out. In addition lung, brain and liver biopsies were carried out on selected animals. all such studies showed no significant abnormalities. One dive employing helium and one dive employing hydrogen proved fatal. In both instances, these fatalities were due to volatile hydrocarbons present in a cylinder of contaminated oxygen. All other animals survived the exposures. Indeed, some animals made more than one dive. Three of these animals still appear normal after 3 to 5 years post-dive. EEG studies showed no residual post-dive abnormalities and no evidence of High Pressure Nervous Syndrome while at 1000 FSW, although transient EEG abnormalities were noted during hypoxia. Techniques were developed for mixing hydrogen and oxygen in a non-explosive manner. The techniques developed for the use of hydrox appear to be reasonably safe. For the past eleven years, this laboratory has carried out over 645O hours of hydrox exposure on animals including mice, rats, dogs, and man, and has mixed approximately 200 cylinders of hydrox without an accident related to the use of hydrogen.
Author:
Publisher: DIANE Publishing
ISBN: 0788102311
Category :
Languages : en
Pages : 625
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Book Description
Provides a comprehensive overview of the U.S. coal industry over 20 years, with emphasis on the major changes that occurred, their causes, and their effects. Presents and analyzes data in terms of trends in production, consumption, distribution, and prices. Profitability of major energy companies' coal operations is also tracked. Over 100 charts, tables, graphs and photos.
Author: United States. National Oceanic and Atmospheric Administration. Office of Undersea Research
Publisher:
ISBN:
Category : Deep diving
Languages : en
Pages : 628
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Book Description
Author: NOAA Diving Program (U.S.)
Publisher:
ISBN:
Category : Deep diving
Languages : en
Pages : 674
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Book Description
Author: Philippe Sebert
Publisher: CRC Press
ISBN: 1000738078
Category : Science
Languages : en
Pages : 388
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Book Description
High pressure biology is an old, fascinating and stimulating field of research. One of the major reasons for the interest in studying high pressure is that this environmental factor also plays an important role in thermodynamics and consequently in biology. Pressure, from a biological perspective, has a bearing on all living creatures. The book pre
Author: Peter B. Bennett
Publisher: University Rochester Press
ISBN: 9781878822253
Category : Science
Languages : en
Pages : 496
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Book Description
High pressure biology has matured over the century since the pioneering investigations of A. Certes and P. Regnard on organisms dredged from the deep ocean. Basic work continues on whole organisms, organ systems,cells and subcellular systems and is now benefiting greatly from advances in molecular biology. Applied aspects of the subject include the growing field of hyperbaric medicine, based in large part on past work in diving physiology, and the expanding use of pressure in biological and medical industries including the food industry. The papers in this book derive from the 3rd International Meeting on High Pressure Biology which was designed to bring together a diverse group of investigators with interests ranging from molecular pressure responses to medical applications of hyperbaric oxygen. The book has the following sections: (1) Cellular and Molecular Biology, i.Cellular Responses to Pressure, ii.Molecular Responses to Pressure; (2) Pressure Effects on Animals and Animal Systems, i.Nervous System, ii.Systems Other than the Nervous System; (3) Applications of Pressure Biology, i.Applied Research and Development ii. Toxic and Beneficial Effects of Oxygen
Author:
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 450
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Book Description
Author: Peter Edel
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Book Description
This study attempts to define the state-of-the-art for the use of Hydrogen-Oxygen mixtures for diving operations by compiling information relative to past and current research efforts in the U.S. and foreign countries. This information was utilized to indicate possible areas of application with this mixture for appropriate conditions and define areas in which hydrogen-oxygen mixtures could offer physiological advantages not possible with currently used breathing mixtures. Further research requirements prior to operational use of this mixture are indicated from this study and recommendations for current and future research and development needs are included in this report. Hydrogen-oxygen mixtures have shown sufficient advantage to warrant further research for possible future applications. Present experience indicates that H2-02 mixtures offer some potential advantages over present helium-oxygen bounce diving applications for operations where on site gas storage space is limited and/or resupply of breathing gas mixtures are a potential problem. Present experience indicates that H2-He-02 mixtures offer some potential advantages over present helium-oxygen saturation diving operations at depths where increased diver performance and reduction of breathing resistance is an important factor. Hydrogen narcosis effects and decompression requirements are the major primary physiological research areas requiring investigation prior to possible applications of such mixtures for operational usage.
Author: United States. National Oceanic and Atmospheric Administration. Manned Undersea Science and Technology Office
Publisher:
ISBN:
Category : Adaptation (Physiology)
Languages : en
Pages : 504
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Book Description
