| Great Lakes Demonstration 2 |
Jun 2012 |
90 pages |
| Authors:
Norbert E Yankielun; Daniel J Dugery; Randy D Sundberg; Kevin Wilson; COAST GUARD NEW LONDON CT RESEARCH AND DEVELOPMENT CENTER
|
 | This report describes the continuance of an effort by the Coast Guard in collaboration with other Federal, state, and local agencies, private industry, and international interested parties, to gain practical knowledge and field experience in the coordination and operation of equipment, and exploration of techniques applicable to the recovery of oil spills in ice-infested waters. The effort explored and demonstrated a variety of commercial oil skimmers, boom capturing, and fire ... |
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| Unmanned Evaluation of Mares Abyss 22 Navy Open Circuit Scuba Regulator for Cold Water Diving |
05 May 2011 |
32 pages |
| Authors:
Vince H Ferris; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Unmanned testing and evaluation of the Mares UBA model Abyss 22 Navy scuba regulator was conducted, and the results were compared to the U.S. Navy performance limits and goals for use in cold water diving applications. The UBA model regulator met or exceeded the U. S. Navy performance limits and goals for use in cold water diving applications. 15. |
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| Unmanned Evaluation of Select Commercially Available Open Circuit Scuba Regulators for Cold Water Diving |
Apr 2010 |
32 pages |
| Authors:
Vince Ferris; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| This report summarizes the results for five preselected commercially available open circuit scuba regulator models that were tested to determine their suitability for U. S. Navy diving. Five units of each model regulator were tested in both cold (38 deg F) and freezing (29 deg F) water. To emulate the ventilation of a diver, a breathing simulator with a sinusoidal breathing pattern was used, and the exhaled gas was heated ... |
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| Design and Testing of a Diver Thermal Protection Garment |
MAY 2008 |
15 pages |
| Authors:
David R. Pendergast; Joseph M. Mollendorf; STATE UNIV OF NEW YORK AT BUFFALO CENTER FOR RESEARCH AND EDUCATION IN SPECIAL ENVIRONMENTS
|
| Missions in cold and hot water have to be planned to insure thermal protection to prevent loss of diver capability. The objective of this project was to design, develop and test a diver thermal protection system (DTPS) that would eliminate the thermal constraint, and protect free swimming divers in waters from 5C to 40C at rest and during exercise at depths to 350 fsw. The DTPS developed met the objectives, ... |
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| Evaluation of Two Cold Thermoregulatory Models for Prediction of Core Temperature During Exercise in Cold Water |
20 SEP 2007 |
9 pages |
| Authors:
John W. Castellani; Catherine O'Brien; Peter Tikuisis; Ingrid V. Sils; Xiaojiang Xu; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| COld thermoregulatory model(CTM) have primirily been developed to predict core temperature (t sub core) responses during sednetary immersion. Few studies have examined their efficacy to predict T(sub core) during exercise cold exposure. The purpose of this study was to compare observed T(sub core) responses during exercise in cold water with the predicted T(sub core) from a three-cylinder (3-CTM) and a six-cylinder (6-CTM) model, adjusted to include heat production from exercise. ... |
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| Investigation of Copper Contamination and Corrosion Scale Mineralogy in Aging Drink Water Distributions Systems |
MAR 2006 |
208 pages |
| Authors:
Nadja F. Turek; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Research has shown higher levels of copper appear in drinking water conveyed through relatively new copper piping systems; older piping systems typically deliver lower copper levels in their drinking water. This research contributes field data from a real drinking water distribution system, providing a better understanding of this phenomenon, as it relates to treatment considerations and compliance with the Lead and Copper Rule. Copper pipes and copper levels were sampled ... |
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| Heat Related Illnesses |
2006 |
9 pages |
| Authors:
R. Carter; S. N. Cheuvront; M. N. Sawka; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| Heat illnesses range in severity form mild (heat rash, heat syncope, cramps) to serious (heat exhaustion, heat injury, heat stroke). Although heat illness can occur in anyone, an increased risk is associated with a variety of environmental factors, personal characteristics, health conditions, and medications. The risk of serious heat illness can be markedly reduced by implementing a variety of countermeasures, including becoming acclimated to the heat, managing heat stress exposure, ... |
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| What Does Military Biomedical Research Contribute to Sustaining Soldier Performance in Cold Environments? |
DEC 2005 |
25 pages |
| Authors:
Karl E. Friedl; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| Research on the physiology of performance limits provides simple and effective solutions involving the way we feed, train, and equip the Soldier. Accurate predictions of human performance offer useful decision aids to military planners, set safe limits in training, and provide a scientific basis to evaluate military strategies or off-the-shelf technologies. Current cold physiology studies focus on hypothermia risk prediction, militarily relevant performance, and affordable metabolic countermeasures. Joint Norwegian-U.S. research ... |
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| High Resolution Modeling of the Gulf of Mexico |
JUL 2005 |
4 pages |
| Authors:
Patrick J. Hogan; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| An advanced, high-resolution numerical ocean model is employed to investigate the dynamics and physical characteristics of the deep and shallow circulation in the Gulf of Mexico. The resolution of the ocean model (approx. 4 kilometers) and revolutionary hybrid (quasi-isopycnic) vertical coordinate makes it an excellent candidate to form the ocean model core of an ocean acoustic tomography program that can provide near real-time subsurface ocean data to augment satellite data ... |
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| Manned Evaluation of a Diver Heater for SDV Applications Using Hydrogen Catalytic Reactions |
JUN 2005 |
61 pages |
| Authors:
M. L. Nuckols; J. C. Chao; M. J. Swiergoaz; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Naval Sea Systems Command (NAVSEA) 000 tasked Navy Experimental Diving Unit (NEDU) to assess the effectiveness of an experimental diver heater being developed in partnership by Duke University and NSWC Panama City under sponsorship of the Office of Naval Research.1 This proof of concept study was designed to investigate whether a prototype hydrogen catalytic heater, when used in conjunction with a recently developed integrated closed-circuit tube suit-dry suit thermal protection ... |
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| Prevention of Cold Injuries: What can be Learned from Nerve Injury Patients? |
01 MAY 2005 |
7 pages |
| Authors:
J. B. Jaquet; M. Brandsma; H. A. Daanen; S.E. Hovius; ERASMUS MEDICAL CENTER ROTTERDAM (NETHERLANDS) DEPT OF PLASTIC AND RECONSTRUCTIVE SURGERY
|
| Patients who acquired an upper extremity nerve injury often complain about cold intolerance, reduced sensitivity and decreased task performance. This study tried to quantify these complaints and look in more detail at the thermal reaction to local cold exposure of the affected limb. We found that 36% of 107 subjects could be classified as cold intolerant. Eight of the cold intolerant subjects immersed their hands in 15 C water for ... |
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| Cold Injury of Amputated Digits |
01 MAY 2005 |
5 pages |
| Authors:
Uros Ahcan; Bostjan Luzar; Fajko Bajrovic; Igor Mekjavic; CLINICAL CENTRE LJUBLJANA (SLOVENIA) DEPT OF PLASTIC SURGERY AND BURNS
|
| Patients who acquired an upper extremity nerve injury often complain about cold intolerance, reduced sensitivity and decreased task performance. This study tried to quantify these complaints and look in more detail at the thermal reaction to local cold exposure of the affected limb. We found that 36% of 107 subjects could be classified as cold intolerant. Eight of the cold intolerant subjects immersed their hands in 15 C water for ... |
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| Manned Evaluation of a Prototype Composite Cold Water Diving Garment Using Liquids and Superinsulation Aerogel Materials |
07 MAR 2005 |
28 pages |
| Authors:
M. L. Nuckols; J. C. Chao; M. J. Swiergosz; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Naval Sea Systems Command (NAVSEA) OOC tasked Navy Experimental Diving Unit (NEDU) to assess the effectiveness of an experimental composite cold water diving garment developed in a partnership among Southwest Research Institute (San Antonio, TX), Duke University (Durham, NC), and Aspen Systems (Marlborough, MA) under the sponsorship of the Office of Naval Research (ONR).1 The objective of this assessment was to quantify physical and psychological characteristics of divers wearing materials ... |
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| Spatial Variations of the Wave, Stress and Wind Fields in the Shoaling Zone |
02 SEP 2003 |
88 pages |
| Authors:
Larry Mahrt; OREGON STATE UNIV CORVALLIS
|
| Aircraft data collected at approximately 15 m above the sea surface in the coastal zone are analyzed to examine the spatial distribution of surface stress. Advection of stronger turbulence from land dominates the near-surface turbulence for the first few kilometers offshore. With offshore flow of warm air over cold water, strong stratification leads to very small surface stress. Because the stability restricts the momentum transfer to the waves, the aerodynamic ... |
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| Testing a New Concept of Immersion Suit at Sea |
APR 2002 |
|
| Authors:
Michel B. Ducharme; DEFENCE AND CIVIL INST OF ENVIRONMENTALMEDICINE DOWNSVIEW (ONTARIO)
|
 | A new concept of immersion suit, the nearly dry suit, was recently developed to overcome the main limitations of the wet and dry suits. The main new feature of the suit is the adjustable seals that can be closed before or upon entry in water. The purpose of the present study was to test the new suit at sea against a standard dry suit. Seven male subjects were immersed for ... |
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| What is the Survival Suit Designed to Do, and Will it Work for Me in the Event of a Ditching or Ship Abandonment? |
APR 2002 |
23 pages |
| Authors:
Christopher Brooks; John McCabe; Jennifer Lamont; SURVIVAL SYSTEMS LTD DARTMOUTH (NOVA SCOTIA)
|
| Three hundred and fifty seven people attended a series of practical survival courses at Survival Systems Ltd., Dartmouth, Nova Scotia between January and June, 2001. Each of the attendees earns their living either working on, or flying over water. During the courses, they wore a variety of survival suits: a helicopter passenger suit; a marine, one-size-fits-all ship abandonment suit; or a military constant wear survival suit. At the beginning and ... |
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| Toxicological Risk Assessment of a Nickel Compound Found on the Surfaces of Replacement Hyperstretch Neoprene (CWU-83P) Neck and Wrist Seals for a Cold water Submersion Survival Suit |
DEC 2001 |
14 pages |
| Authors:
Darryl P. Arfsten; Linda V. Kane; Kenneth R. Still; NAVAL HEALTH RESEARCH CENTER WRIGHT-PATTERSON AFB OH TOXICOLOGY DETACHMENT
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| Naval Health Research Center/Toxicology was requested to provide comment and endorse an action plan developed by Naval Air Warfare Center Aeronautics Division (NAWCAD) to remove surface nickel from hyperstretch neoprene (CWU-83/P) neck and wrist seals used in cold water submersion survival suits. The nickel compound present on the surface of the seals is most likely nickeldialkyldithiocarbamate which is a common chemical additive used to prevent photoxidation and breakdown of rubber ... |
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| Thermal Resistance of Inflatable and Non-Inflatable Floors of One-Man Life Rafts for the CF-188 Escape System |
JUL 2001 |
|
| Authors:
M. B. Ducharme; DEFENCE AND CIVIL INST OF ENVIRONMENTALMEDICINE DOWNSVIEW (ONTARIO)
|
| The purpose of this study was to define, using humans as heat source, the difference in thermal resistance of inflatable and non-inflatable floors of one-man life rafts for the CF 188 Escape System of the Canadian Forces. Three life rafts were tested: two with an inflatable floor and one with a non- inflatable floor. Eight subjects of both genders were used to evaluate the thermal resistance of the floors because ... |
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| Vapor Bubble Luminescence From Deep Sea Hydrothermal Vent Minerals and Other Hot Solids |
30 MAR 2001 |
10 pages |
| Authors:
G. T. Reynolds; PRINCETON UNIV NJ JOSEPH HENRY LABS OFPHYSICS
|
| Vapor bubble luminescence, first notice when a jet of superheated steam enters cold water, has been observed when certain hot solids, 300 degrees C, are dropped into room temperature water. The materials observed include several deep sea hydrothermal vent minerals, basalt, iron, and copper. |
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| Physiological Responses to Wearing the Helicopter Aircrew Integrated Life Support System (HAILSS) in Hot Environments |
08 AUG 2000 |
51 pages |
| Authors:
J. W. Kaufman; B. S. Shender; G. K. Askew; L. Schaaf; K. Farahmand; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD
|
| Individuals wearing encapsulating garments require auxiliary cooling systems to sustain physical and cognitive performance when exposed to high temperatures or workloads. The Helicopter Aircrew Integrated Life Support System (HAILS S) is designed to minimize thermal problems by incorporating normal flight suit functions with protective functions (fire, chemical and biological warfare (CBW), and cold water immersion) in a single, integrated clothing ensemble. This study evaluated the ... |
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| Water Quality Studies at Cougar Lake, Blue River Lake, and the Mckenzie River, Oregon |
APR 2000 |
220 pages |
| Authors:
John J. Hains; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| Blue River and Cougar Reservoirs are proposed for modification to their withdrawal structures to allow selective withdrawal. The purpose of the proposed modifications is to improve downstream temperatures for the cold water fishery in the McKenzie River. The Corps committed to study water quality at the reservoirs to predict downstream impacts to water quality in the McKenzie River as a result of selective withdrawal. Proposed modifications ... |
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| Thermoregulatory and Immune Responses During Cold Exposure: Effects of Repeated Cold Exposure and Acute Exercise |
MAR 2000 |
105 pages |
| Authors:
John W. Castellani; Andrew J. Young; Michael N. Sawka; Pang N. Shek; Ingrid K. Brenner; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| Whether or not the thermoregulatory system fatigues (i.e., causes blunted shivering thermogenesis and vasoconstriction) during cold exposure is unknown. Thus, a series of experiments were executed to determine if serial cold water immersion or acute exertional fatigue would cause thermoregulatory fatigue during subsequent cold exposure. This information will be used in developing thermoregulatory models during cold exposure. During these studies several unanswered questions regarding thermoregulation in ... |
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| Lot Variability of Sofnolime 408 Carbon Dioxide Absorbent When Tested inthe Cold |
AUG 1998 |
33 pages |
| Authors:
J. R. Clarke; L. D. Thompson; R. J. Godgrey Jr.; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| NEDU performed quality assurance tests on 18 lots of Sofnolime 408, a large grain sodalime made by Molecular Products. CO2 absorption activity using the standard NATO tubs test was performed at initial absorbent bed temperatures of approximately 32 deg F. Moisture analyses and sieve tests were also performed on each sample. Absorption test breakthrough in the chilled bed occurred at an average of 7 min, compared to ... |
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| Heated Shelter for Diver Decompression. |
17 MAR 1998 |
|
| Authors:
M. L. Nuckols; Billy Courson; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A heated decompression shelter for use by a diver underwater during decompression at the end of a cold water dive. The heated decompression chamber provides a micro-environment within an enclosure for thermal protection during decompression stops in cold water, some of which can he of relatively long duration following relatively deep dives in near freezing water. |
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| Laboratory Measurements of the Water/Air Flux of Dimethylsulfide Using a Wind/Wave Tank |
JAN 98 |
|
| Authors:
John W. Dacey; Nelson M. Frew; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| The flux of dimethylsulfide (DMS) from the surface water of the ocean to the atmosphere is an important biogeochemical problem, since DMS contributes to optical haze and potentially impacts global climate by influencing earth's albedo. DMS is also an interesting gas in terms of gas exchange. The rate of flux of a gas across the air-water interface is regulated by its diffusivity and by the hydrodynamics of the two sublayers ... |
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| Navy Special Warfare Enhanced Thermal Protection |
Jan 1998 |
7 pages |
| Authors:
William C Balderson; NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
|
| This task seeks to provide an alternative to the commercially available divers' dry suit undergarment manufactured with standard thermal insulation. A novel thermal energy storage medium will be used to replace and/or supplement the standard thermal protection material and to enhance diver comfort level, improve physiological response to cold water operations, and support extended mission periods. The objectives of this task are to investigate the use of microencapsulated phase change ... |
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| Telemetry Pill Measurement of Core Temperature during Active Heating and Cooling |
JUL 1997 |
27 pages |
| Authors:
Catherine O'Brien; Reed W. Hoyt; Mark J. Buller; John W. Castellani; Andrew J. Young; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| The agreement between core temperature measurements obtained using an ingestible temperature pill telemetry system (T sub pill) and rectal (T sub re) and esophageal (T sub es) thermocouples was compared under conditions of both increasing and decreasing body temperature. Nine subjects participated in four 3-h trials: cold (18 deg C) water rest (CWR); cold water exercise (CWE); warm (36 deg C) water rest (WWR); and warm water exercise (WWE). During ... |
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| Effect of Anti-Exposure Suits on Body Temperatures during Shipboard Flooding Activities |
MAY 1997 |
23 pages |
| Authors:
R. D. Hagan; R. D. Bernhard; B. S. Cohen; J. A. Hodgdon; NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA
|
| The purpose of the present investigation was to evaluate the effectiveness of the whole-body Naval Clothing and Textile Research Facility experimental- immersion suit (NAVCLO) in maintaining normal body temperatures in naval personnel performing simulated flooding repair activities in cold water. Preliminary evaluations were also conducted on subjects wearing the Marine Corps (MARCOR) experimental-immersion suit, and MultiFabs Survival (MULFAB) suit. These were compared with subjects wearing NAVCLO and those wearing coveralls, ... |
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| Results of Damage Control Tactics and Equipment Tests-Phase 3: Cold Water Tests |
28 FEB 97 |
64 pages |
| Authors:
F. W. Williams; S. A. Hill; C. Campbell; H. Kuzma; NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC
|
| This report summarizes data from the cold water series of damage control tests involving pipe patching and hull repair. Two different anti- exposure suits were also evaluated. |
|
| A Limited Energy Study of High Temperature and Chilled Water Distribution Systems at Fort Stewart and Hunter Army Airfield, Georgia. Volume III: Field Investigation Forms |
06 SEP 96 |
262 pages |
| Authors:
REYNOLDS SMITH AND HILLS JACKSONVILLE FL
|
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| Evaluation of the Scubapro MKlO and MK2O SCUBA Regulators for Use In Cold Water |
JAN 96 |
14 pages |
| Authors:
J. R. Clarke; M. Rainone; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| NEDU tested the breathing effort and susceptibility to freeze-up of the Scubapro MKl0 and MK2O SCUBA regulators. The regulators were tested in 28 deg F (-2 deg C) salt water, at depths to 198 fsw (60.7 msw). Five samples of each model were tested. The probability of regulator failure was computed from the number of cold induced incidents, and the time to failure for each incident. Under these rigorous conditions, ... |
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| Evaluation of the Poseidon Odin Scuba Regulator for Use In Cold Water |
DEC 95 |
19 pages |
| Authors:
J. R. Clarke; M. Rainone; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| NEDU tested the breathing effort and susceptibility to freeze-up of the Poseidon Odin Jetstream SCUBA regulator. The regulator was tested in 28 deg F (-2 deg C) salt water, at depths to 198 fsw (60.7 msw) . Five samples of the model were tested. The probability of regulator failure was computed from the number of cold induced incidents, and the time to failure for each incident. Under these rigorous conditions, ... |
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| Evaluation of Sherwood Scuba Regulators for Use in Cold Water |
JUL 95 |
24 pages |
| Authors:
J. R. Clarke; M. Rainone; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| NEDU tested the breathing effort and susceptibility to freeze-up of two models of Sherwood SCUBA regulators, the Blizzard and the Maximus. Both regulators were treated in -2C (28F) salt water, at depths to 60.7 msw (198 fsw) . Five examples of each model were tested. The probability of regulator failure was computed from the number of cold induced incidents, and the time to failure for each incident. Under these rigorous ... |
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| Effects of Seed Treatments on Germination |
SEP 94 |
24 pages |
| Authors:
Deborah Diemand; Antonio J. Palazzo; Mohammad Sharif; COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
|
| The goal of this study was to identify ways to stimulate the germination of seeds of various grasses and legumes of potential value in revegetation of army training grounds or similar damaged lands. Ten treatments (including a control) were used on ten species of plants. Four of the treatments used plant hormones (kinetin and gibberellic acid), and five were environmental, including cold exposure, hot water soaks and cold water soaks. ... |
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| Effects of Theophylline Ingestion on Thermoregulation During 15 deg C water Immersion |
SEP 94 |
|
| Authors:
Ira Jacobs; Larry C. Wang; T. Romet; Margaret F. Kavanagh; John Frimm; DEFENCE AND CIVIL INST OF ENVIRONMENTAL MEDICINE DOWNSVIEW (ONTARIO)
|
| Military personnel can be exposed to emergency survival conditions in cold environments which could result in lethal levels of hypothermia if appropriate insulation or protective shelters are not available. Hypothermia can be delayed in humans if metabolic heat production is increased, and we have previously demonstrated that pretreatment with certain safe pharmacological agents can elicit such an effect. Others have reported that the ingestion of theophylline, a caffeine-like compound, delays ... |
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| User Guide and Specifications for the Rehabilitation of Cold Water Copper Piping Systems |
JUL 94 |
15 pages |
| Authors:
Vincent F. Hock; Orange Marshall; Henry Cardenas; Malcolm E. McLeod; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
|
|
| Demonstration of a Field Rehabilitation Technique for Removing Corrosive Solder Flux in Cold Water Copper Piping Systems |
JUN 94 |
57 pages |
| Authors:
O. S. Marshall; V. L. Van Blaricum; R. H. Knoll; V. F. Hock; J. R. Myers; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL ENGINEERING AND MA TERIALS DIV
|
| Premature Failures in copper potable water systems are often a direct result of poor installation practices. One practice that can lead to accelerated corrosion and failure of copper piping systems, particularly those used to convey cold water, is the use of excessive soldering flux. This report evaluates a technique for mitigating corrosion induced by solder flux. The technique involves flushing the affected system with hot water (150 to 170 degrees ... |
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| Homeostatic Responses to Prolonged Cold Exposure: Human Cold Acclimatization |
MAY 94 |
79 pages |
| Authors:
Andrew J. Young; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| This report reviews human physiological adjustments induced by chronic exposure to cold stress. Three broad types of adjustments are identified. The most commonly observed adjustment exhibited by humans chronically exposed to cold is a hypothermic habituation. Blunted shivering and vasoconstrictor responses to cold characterize this adjustment which enables maintenance of warmer skin during cold exposure. Metabolic acclimatization/ acclimation has been observed in which shivering response to cold becomes exaggerated. Insulative ... |
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| Commercially Available US Divers Regulators |
APR 94 |
43 pages |
| Authors:
J. A. Noe; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Evaluations were conducted to determine which commercially available open-circuit SCUBA regulators were capable of meeting performance goal standards for Navy use. Bench testing of all candidate regulators was conducted to establish flow patterns and air delivery capacity. Unmanned testing using a breathing simulator at ventilation rates of 22.5, 40, 62.5, 75, and 90 L/min at test depths of 0 to 60 msw (O to 198 fsw), in 10 msw (33 ... |
|
| Re-Evaluating the DSI Contaminated Water Diving Kit's Ability to Prevent Water Aspiration into the MK 21 MOD 1 UBA |
APR 94 |
7 pages |
| Authors:
L. J. Crepeau; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| A contaminated water diving system (CWDS) protects a diver from exposure to water-borne toxic, volatile, corrosive, or microbial agents. This report followed up on a previous report that evaluated the ability of the Diving Systems, International (DSI, Santa Barbara, CA) contaminated water diving kit to prevent water aspiration into the MK 21 MOD 1 underwater breathing apparatus (UBA). These kits are comprised of double flapper exhaust values and a secondary ... |
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| Low Temperature Limit Evaluation of Mk 21 Mod 1 UBA Using Reduced Overbottom (O/B) Pressure and Extended Gas Umbilical Length |
DEC 93 |
24 pages |
| Authors:
L. J. Crepeau; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| This report addressed three issues regarding the performance of the MK 21 MOD 1 UBA during unmanned testing. First, the influence of oral-nasal (OIN) mask seal integrity on work of breathing (WOB) levels was characterized. WOB Levels were measured with the O/N mask in three configurations: (1) cemented directly to a test mannequin; (2) fitted to, but not cemented on the mannequin; and (3) removed from the UBA. Second, the ... |
|
| Commercially Available Mares Regulators |
SEP 93 |
28 pages |
| Authors:
J. A. Noe; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Evaluations were conducted to determine which commercially available open-circuit SCUBA regulators were capable of meeting performance goat standards for Navy use. Bench testing of all candidate regulators was conducted to establish flow patterns and air delivery capacity. Unmanned testing using a breathing simulator at ventilation rates of 22.5, 40, 62.5, 75, and 90 L/min at test depths of 0 to 60 msw (0 to 198 fsw), in 10 msw (33 ... |
|
| Commercially Available IDI Scuba Regulators |
SEP 93 |
25 pages |
| Authors:
J. A. Noe; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Evaluations were conducted to determine which commercially available open-circuit SCUBA regulators were capable of meeting performance goal standards for Navy use. Bench testing of all candidate regulators was conducted to establish flow patterns and air delivery capacity. Unmanned testing using a breathing simulator at ventilation rates of 22.5, 40, 62.5, 75, and 90 L/min at test depths of 0 to 60 msw (0 to 198 fsw), in 10 msw (33 ... |
|
| Commercially Available Beauchat Regulators |
SEP 93 |
|
| Authors:
J. A. Noe; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Evaluations were conducted to determine which commercially available open-circuit SCUBA regulators were capable of meeting performance goal standards for Navy use. Bench testing of all candidate regulators was conducted to establish flow patterns and air delivery capacity. Unmanned testing using a breathing simulator at ventilation rates of 22.5, 40, 2.5, 75, and 90 L/min at test depths of 0 to 60 msw (O to 198 fsw), in 10 msw (33 ... |
|
| Hypothermia |
16 JUL 1993 |
36 pages |
| Authors:
R. S. Pozos; P. A. Iaizzo; D. F. Danzl; NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA
|
| Man has a complex, physiologically coordinated system designed to maintain a core temperature of 37 deg C. Despite the amazing capacity and responsiveness of the thermoregulatory system, human health is frequently challenged by cold stress leading to hypothermia. Recently, unpredictable climatic conditions were responsible for the deaths of five mountaineers on Mount McKinley. The incidence of hypothermia is not limited to cold latitudes. Hypothermia ... |
|
| Thermal Stratification of Dilute Lakes- Evaluation of Regulatory Processes and Biological Effects Before and After Base Addition: Effects on Brook Trout Habitat and Growth |
APR 93 |
42 pages |
| Authors:
Carl L. Schofield; Dan Josephson; Chris Keleher; Steven P. Gloss; CORNELL UNIV ITHACA NY
|
| We address the significance of changes in summer thermal stratification patterns of Adirondack lakes affected by acidification to cold- water fish populations inhabiting these sensitive lakes. The brook trout (Salvelinus fontinalis) is the primary cold-water fish species indigenous to acid-sensitive lakes in the Adirondack region of northern New York State; the ability of these lakes to sustain this important sport species is highly dependent on the availability of adequate summer ... |
|
| Effect of Intermittent Cold Exposure on the Fiber-Type Composition of Selected Skeletal Muscles in Rats |
APR 93 |
20 pages |
| Authors:
Thomas J. Walters; Stefan H. Constable; ARMSTRONG LAB BROOKS AFB TX
|
| We examined the effect of long-term intermittent cold exposure (CE) on the fiber-type composition of the predominantly type I soleus and the predominantly type IIb extensor digitorum longus (EDL) muscles of the rats. CE was accomplished by submerging the rats in shoulder-deep water, maintained at 20 = 0.5 deg C, for 1 h/d, 5 d/wk, for up to 19 weeks. Rats were randomly assigned to either a Control (CON) or ... |
|
| Volume Reverberation in the Marginal Ice Zone of Fram Strait |
1993 |
6 pages |
| Authors:
Marcia A. Wilson; Richard H. Love; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
|
| Many measurements of volume reverberation have been conducted in the open oceans of the world. In May 1988, the Naval Research Laboratory at Stennis Space Center (NRL-SSC) had the opportunity to investigate volume reverberation in a unique region: the marginal ice zone (MIZ) of the Fram Strait between Spitsbergen and Greenland. Measurements were made from a drifting ice camp at three locations over a four day period. Volume scattering strength ... |
|
| Intermittent Cold Exposure Causes a Muscle-Specific Shift in the Fiber Type Composition in Rats |
1993 |
6 pages |
| Authors:
T. J. Walters; S. H. Constable; ARMSTRONG LAB BROOKS AFB TX
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| We examined the effect of long-term intermittent cold exposure on the fiber type composition of the predominantly type I soleus and the predominantly type IIb extensor digitorum longus (EDL) muscles of rats. Cold exposure was accomplished by submerging the rats in shoulder-deep water, maintained at 20+0.5 degrees C, for 1 h/day, 5 days/wk, for |
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| Metabolic Changes and Hemodynamic Dysfunction Following Hypothermic Chock |
31 MAR 92 |
16 pages |
| Authors:
Harvey I. Miller; LOUISIANA STATE UNIV MEDICAL CENTER NEW ORLEANS
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Reports by Keyword(s)
COLD WATER
