| Development and Validation of 1.3 ATA PO2-in-He Decompression Tables for the MK 16 MOD 1 UBA |
30 AUG 2002 |
419 pages |
| Authors:
Wayne A. Gerth; Thomas M. Johnson; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
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 | The Navy Experimental Diving Unit (NEDU) was tasked by PMS-EOD to develop and validate repetitive helium-oxygen (He-O2) decompression tables for use with the MK 16 MOD 1 Underwater Breathing Apparatus (UBA). The present report provides details of the work that was completed to meet this tasking and produce the tables published in NEDU Technical Report 14-01. The report includes a description of the probabilistic model used as the basis for ... |
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| Survey of Current Best Practices for Diving in Contaminated Water |
JUL 2002 |
18 pages |
| Authors:
W. A. Steigleman; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
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| The Navy Experimental Diving Unit (NEDU) conducted a worldwide survey of commercial, governmental, and military diving organizations to provide guidelines for U.S. Navy divers operating in contaminated water. This survey attempted to identify the current best practices and equipment for diving in contaminated water, including personal protective equipment as well as hazard identification, diver training, and decontamination practices. This survey was conducted via telephone interviews and followed a script of ... |
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| Operational Medical Issues in Hypo-and Hyperbaric Conditions (les Questions medicales a caractere oprationel liees aux conditions hypobares ou hyperbares) |
JUN 2001 |
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| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
|
 | On 16-19 October 2000, NATO, Partnership for Peace (PfP) and Non-NATO nationals from 24 countries met in Toronto, Canada to attend a symposium on Operational Medical Issues in Hypo- and Hyperbaric Conditions relevant to the alliance, arranged by NATO/RTO/HFM. Exposures to the said conditions are experienced regularly in military operations, but this was the first time operational medical issues affecting air, sea and land forces were addressed in a NATO ... |
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| The Physiology of Acute Mountain Sickness in Women |
FEB 2000 |
162 pages |
| Authors:
Jack Loappky; LOVELACE INSTITUTES ALBUQUERQUE NM
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| The purpose of this investigation was to determine whether gender, phases of the menstrual cycle or oral contraceptive use by women are significant considerations in assigning military personnel to high altitude duty. In this reported study 18 healthy men and 33 women were exposed for 12 hours to a simulated altitude of 16,000 ft in a decompression chamber. Previous studies have shown that individuals who exhibit altitude sickness within the ... |
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| Acrylic Light Pipes for Interior Illumination of Hyperbaric Chambers |
MAR 96 |
101 pages |
| Authors:
R. P. Johnson; NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA
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| The Naval Command, Control and Ocean Surveillance Center RDT&E division (NRaD) has developed a new acrylic plastic light pipe for hyperbaric chamber illumination that can be installed in pipe-sized penetrations in the wall of a hyperbaric chamber that provides improved optical, mechanical, and structural performance over commercial hardware. This new light pipe design has been qualified and accepted for service by the U.S. Navy community in man-rated hyperbaric chambers for ... |
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| Contaminated Water Diving System (CWDS) Evaluation |
DEC 93 |
38 pages |
| Authors:
L. J. Crepeau; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
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| A contaminated water diving system (CWDs) protects a diver from exposure to water-borne toxic, volatile, corrosive, or microbiaL agents. A CWDS is comprised of a dry suit and a self-contained underwater breathing apparatus (UBA). Currently, the MK 12 surface-supplied diving system is the only USA currently authorized by the U. S. Navy for contaminated water diving. The report evaluated five commercially-available dry suits equipped with integral neck dams for use ... |
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| Operation Everest II. Lack of an Effect of Extreme Altitude on Visual Contrast Sensitivity |
FEB 88 |
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| Authors:
John L. Kobrick; Edith Crohn; Barbara Shukitt; Charles S. Houston; John R. Sutton; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
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| Contrast sensitivity thresholds were studied over 40 of during gradual ascent to a simulated terrestrial altitude of 25,000 ft in a decompression chamber. Only ambient pressure, and thus inspired oxygen pressure, was varied, thereby eliminating many of the confounding effects of cold, dehydration, malnutrition and exhaustion, inevitably encountered on very high mountains. Contrast sensitivity thresholds measured by the Ginsburg Vistech test showed no overall impairment as altitude increased. These results ... |
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| Operation Everest II: Alterations in the Immune System at High Altitude |
09 SEP 87 |
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| Authors:
Richard Meehan; Ulric Duncan; Laureen Neale; Gerald Taylor; Harold Muchmore; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
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| We investigated the effects of progressive hypobaric hypoxia simulating an ascent to 25,000 ft (7,620m) over 4 weeks on immune function. Multiple simultaneous in vitro and in vivo immunologic parameters were obtained from 7 subjects at sea level, 7,500 ft (2,286m), and 25,000 ft during a decompression chamber exposure. PHA stimulated thymidine uptake and protein synthesis in mononuclear cells were reduced at extreme altitude. An increase in monocytes without changes ... |
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| A Study of Human Acclimatization to Hypobaric Hypoxia |
01 MAR 87 |
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| Authors:
Charles F. Houston; John R. Sutton; Allen Cymerman; ARCTIC INST OF NORTH AMERICA ARLINGTON VA
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| In the fall of 1985 eight male subjects lived for 45 days in a decompression chamber while the atmospheric pressure in the chamber was gradually reduced to simulate an ascent of Mt. Everest 8848 m, 29,028 ft. The purpose of the study was to examine all parts of the oxygen transport system during acclimatization to hypobaric hypoxia in an environment where the confounding stresses experienced on high mountains would be ... |
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| Operation Everest II: Alveolar and Arterial Blood Gases at Extreme Altitude |
JUL 86 |
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| Authors:
Mark K. Malconian; Paul B. Rock; John T. Reeves; Allen Cymerman; John R. Sutton; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
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| The relationship between alveolar P02 and PC02 at altitudes up to the summit of Mt. Everest (barometric pressure (Pb) =240 torr) has been investigated in a small number of individuals during mountaineering expeditions and one hypobaric chamber study. No previous study has measured these values on the same subjects throughout an entire ascent and confirmed their results with arterial blood gases. Alvelolar gases were measured daily on eight healthy male ... |
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| Operation Everest II. Altitude Decompression Sickness during Repeated Altitude Exposure |
MAY 86 |
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| Authors:
Mark K. Malconian; Paul B. Rock; James A. Devine; Allen Cymerman; John R. Sutton; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
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| The incidence of altitude decompression sickness (ADS) was studied in 23 altitude scientists during repeated altitude exposure to 15-20,000 feet in a decompression chamber. Prior to each altitude exposure, a 30-60 minute prebreathing period with 100% oxygen took place. Ascent was made to an altitude at a rate of 2000 feet per minute. The altitudes studied ranged from 15-29,000 feet. Symptoms reported appear consistent with previous reports with regard to ... |
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| Evaluation of Hand-Held CO2 Detectors |
AUG 84 |
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| Authors:
E. F. Downs Jr; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
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| Carbon dioxide build up in recompression chambers has for the most part been an unmeasured hazard. Frequent venting has provided a degree of safety, although again unquantified. NEDU evaluated the Draeger and Matheson- Kitagawa hand-held carbon dioxide detector under a variety of depths and carbon dioxide concentrations during a 1000 FSW saturation dive. The Draeger, currently available through standard stock, proved to be best suited for chamber carbon dioxide analysis. ... |
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| Recompression Chamber Communication Systems Test and Evaluation |
APR 1984 |
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| Authors:
J. D. Pelton; M. D. Curley; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
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| Five commercially available Hardwire Communications Systems were tested at the Navy Experimental Diving Unit for Use as two-wire communications systems on recompression chambers. These systems were designed to serve as the primary means of communication between outside personnel and personnel inside the chamber. The communication systems were evaluated and rated by how well they fulfilled specific critical parameters related to this application. The five systems evaluated were Helle Models 3220 ... |
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| XDC-2 Digital Decompression Computer: Assessment of Decompression Profiles by Ultrasonic Monitoring. Phase I. 36 - 54 MSW, |
JUL 1980 |
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| Authors:
R. Y. Nishi; K. E. Kisman; I. P. Buckingham; B. C. Eatock; G. Masurel; DEFENCE AND CIVIL INST OF ENVIRONMENTAL MEDICINE DOWNSVIEW (ONTARIO)
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| Decompression from experimental, operational, and training dives at the Defence and Civil Institute of Environmental Medicine (DCIEM) has been carried out for many years under control of decompression computers rather than by means of published decompression tables. The XDC-2 digital decompression computer and dive monitor is presently in use at DCIEM. An evaluation program for determining and defining the operational limiting bottom times for different depths and the safety of ... |
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| The Physiological Bases for Microbial Barotolerance. |
31 MAR 1979 |
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| Authors:
Robert E. Marquis; ROCHESTER UNIV N Y DEPT OF MICROBIOLOGY
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| Oxygen Regulator Performance during Decompression. |
FEB 1977 |
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| Authors:
Ronald D. Holden; Bruce F. Hiott; Paul J. Zalesky; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX
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| Both static and dynamic performance characteristics of standard USAF oxygen regulators were evaluated during simulated decompression (loss of cabin pressurization), using the regulator test stand in conjunction with the decompression chamber at USAFSAM. A total of 10 regulators were tested, combining both torso- and panel-mounted types drawn from the standard USAF inventory. Outlet suction pressure, flow, positive pressure, and delivered oxygen dilution schedules were monitored and evaluated for two different ... |
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Reports by Keyword(s)
DECOMPRESSION CHAMBERS
