| Integrating Intelligence and Building Teams Within the Infantry Immersion Trainer |
Sep-2009 |
229 pages |
| Authors:
Craig R Schwetje; NAVAL POSTGRADUATE SCHOOL MONTEREY CA MODELING VIRTUAL ENVIRONMENTS AND SIMULATION (MOVES)
|
 | The trend of focusing on technology in technology augmented environments and practicing a set of skills in isolation needs to shift towards user-centered training with skills being integrated earlier in the training process, as long as conditions for that integration exist. The purpose of this thesis was to examine whether incorporating intelligence briefs and debriefs with a Squad Planning Operations Center (SPOC) supported by suitable technologies improved infantry training in ... |
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| Cultural Knowledge Education |
20-Feb-2009 |
16 pages |
| Authors:
Justin Zevenbergen; MARINE CORPS UNIV QUANTICO VA
|
| Cultural awareness training is inadequate in current and future conflicts which require education in cultural knowledge through immersion, interaction, and integration. Soldiers and marines, warfighters, must have the ability to operate within foreign cultures that are significantly different. Enemy that operate within a foreign population have inherent cultural advantages. Education in cultural knowledge mitigates those advantages. |
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| Effects of Subzero Temperatures and Sea Water Immersion on Damage Initiation and Growth in Sandwich Composites |
02-Feb-2009 |
17 pages |
| Authors:
Barry D Davidson; SYRACUSE UNIV NY DEPT OF MECHANICAL AND AEROSPACE ENGINEERING
|
| Results are discussed for the project Effects of Subzero Temperatures and Sea water Immersion on Damage Initiation and Growth in Sandwich Composites. This research project focused on (1) assessing the effects of environment and impact damage on the flexural response of sandwich laminates, (2) developing an improved test and associated data reduction method for determining the debonding toughness of sandwich structures, and (3) using this new test to assess the ... |
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| Effects of Subzero Temperatures and Sea Water Immersion on Damage Initiation and Growth in Sandwich Composites |
10-Dec-2008 |
34 pages |
| Authors:
Barry D Davidson; SYRACUSE UNIV NY DEPT OF MECHANICAL AND AEROSPACE ENGINEERING
|
| Progress during the past six months is described on the project Effects of Subzero Temperatures and Seawater Immersion on Damage Initiation and Growth in Sandwich Composites. Efforts during this period have focused on (1) assessing the effects of environment and impact damage on the flexural response of sandwich laminates, (2) linalizing the improved modified peel test and associated data reduction method for determining the debonding toughness of sandwich structures, and ... |
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| Analytical Techniques for the Calculation of Leeway as a Basis for Search and Rescue Planning |
Sep-2008 |
11 pages |
| Authors:
J T Morris; V I Osychny; A C Turner; SCIENCE APPLICATIONS INTERNATIONAL CORP NEWPORT RI
|
| Leeway, defined as the movement of the search object through water caused by the action of wind on the exposed surfaces of the object, is fundamental to search planning. Over the past several years, the U.S. Coast Guard (USCG) Research and Development Center (R&DC) and the Canadian Coast Guard (CCG) have participated in leeway studies of various drift targets such as life rafts, evacuation vessels, sailboats, and other targets of ... |
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| Thermal Characteristics of Diving Garments When Using Argon as a Suit Inflation Gas |
Sep-2008 |
8 pages |
| Authors:
M L Nuckols; J Giblo; J L Wood-Putnam; DUKE UNIV DURHAM NC
|
| The thermal insulation characteristics of two drysuit ensembles, consisting of the same tri-laminate outergarment with differing thermal undergarments, were measured on a 21-zone thermal manikin at the Navy Clothing and Textile Research Facility (NCRTF) during immersion testing when using air and argon alternatively as the suit inflation gas. Total thermal insulation values were determined for both garments utilizing ASTM test standard F 1291 - standard test method for measuring the ... |
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| Determining the Appropriate Font Size, and Use of Colour and Contrast for Underwater Displays |
01-Apr-2008 |
|
| Authors:
J B Morrison; J K Zander; SHEARWATER HUMAN ENGINEERING NORTH VANCOUVER (BRITISH COLUMBIA)
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 | Canadian mine countermeasures (MCM) divers currently use a combination of different displays to provide them with information about their safety, equipment, and status. MCM divers require a single, integrated display to simplify information gathering, and to provide information from the dive supervisor. Ergonomic design guidelines were reviewed and modified for information display in the underwater environment. A two-phase experiment was conducted to determine the optimal font size and the optimal ... |
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| Factors Influencing Manual Performance in Cold Water Diving |
01-Apr-2008 |
39 pages |
| Authors:
J B Morrison; J K Zander; SHEARWATER HUMAN ENGINEERING NORTH VANCOUVER (BRITISH COLUMBIA)
|
| With the introduction of new communications and display technologies, the ability of divers to operate complex controls becomes an important factor in systems design. This study evaluates the effects of pressure, gloves, and cold on three components of manual performance: grip strength, tactile sensitivity and manual dexterity. Performance was evaluated at 0.4 and 40 msw: with and without gloves in 25 deg C water, and with gloves in 4 deg ... |
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| Probability of Survival Decision Aid (PSDA) |
MAR 2008 |
44 pages |
| Authors:
Xiaojiang Xu; Mitesh Amin; William R. Santee; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| A Probability of Survival Decision Aid (PSDA) is developed to predict survival time for hypothermia and dehydration during prolonged exposure at sea in both air and water for a wide range of environmental conditions. PSDA calculates the survival time of a victim in the water or floating in an emergency craft as a function of human anthropometric parameters, clothing, and enviromnental variables. PSDA consists of a Six Cylinder Thermoregulatory Model ... |
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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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| Enhancement of Drain-Down Capabilities of Submarine Antennae |
JUL 2007 |
16 pages |
| Authors:
Jim Dimas; Andrew J. Scardino; John A. Lewis; DEFENSE SCIENCE AND TECHNOLOGY ORGANIZATION VICTORIA (AUSTRALIA) MARITIME PLATFORMS DIV
|
| Water droplets on submarine antennae degrade signal transmission and increase signature. To improve antennae coating performance a surface which repels water is required. In this study several experimental coatings were compared for their ability to remove water droplets from their surface. The contact angle of a drop of water on each surface was recorded as well as the hysteresis, which is a measure of how easily a droplet will roll ... |
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| Cognitive, Psychomotor, and Physical Performance in Cold Air After Cooling by Exercise in Cold Water |
JUN 2007 |
7 pages |
| Authors:
Catherine O'Brien; Ingrid V. Sils Tharion and John W. Castellani; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| This study evaluated performance after lowering core temperature at different rates while local tissues were either cooled (lower body) or not cooled (upper body). Methods: There were 10 men who volunteered to perform up to 8 cold water immersions (CWI) at combinations of 2 water temperatures (10 deg C and 15 deg C), 2 depths [waist (W), chest (C)], and 2 walking speeds (0.44 or 0.88 m/s^-1) until their core ... |
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| Thermal Responses for Men With Different Fat Compositions During Immersion in Cold Water at Two Depths: Prediction versus Observation |
16 FEB 2007 |
11 pages |
| Authors:
Xiaojiang Xu; John W. Castellani; William Santee; Margaret Kolka; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA BIOPHYSICS AND BIOMEDICAL MODELING DIV
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| A cold thermoregulatory model (CTM) was applied to data from partially immersed subjects divided into normal (NF) or low fat (LF) groups in order to validate CTM during immersion at two depths and to examine mechanisms underlying the individual differences. CTM defines thermal characteristics, e.g. surface area and maximal shivering intensity, using height, weight, fat%, age and VO2max. Ten clothed subjects, 5 NF (15-19%) and 5 LF (8.1-14.7%), were immersed ... |
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| Military Review: The Professional Journal of the U.S. Army. Volume 86, Number 4, July-August 2006 |
Aug-2006 |
124 pages |
| Authors:
William M Darley; Arthur E Bilodeau; ARMY COMBINED ARMS CENTER FORT LEAVENWORTH KS
|
| This issue of Military Review contains the following articles: Family and Future: Five Assignments for Future Leaders; Advising Iraqis: Building the Iraqi Army; Countering Evolved Insurgent Networks; Responding to Bolivian Democracy: Avoiding the Mistakes of Early U.S. Cuban Policy; Full-Spectrum Analysis: A New Way of Thinking for a New World; USAF Relevance in the 21st Century: A First-Quarter Team in a Four-Quarter Game; 1st Place (COIN Competition)-Producing Victory: Rethinking Conventional ... |
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| Leeway of Submarine Escape Rafts and Submarine Emergency Positioning Beacons |
JUL 2006 |
99 pages |
| Authors:
Chris Turner; Thomas Waddington; John Morris; Vladimir Osychny; Pamela Luey; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
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| The leeway behavior of Submarine Emergency Position Indicating Radio Beacons (SEPIRBs) and Mark-10 Submarine Escape and Immersion Equipment (SEIE) life rafts was measured for use in search and rescue planning. SEIE and SEPIRB drift targets were outfitted with position tracking equipment, and one raft was also equipped with a current profiler. The targets were deployed and tracked along with Self-Locating Datum Marker Buoys (SLDMBs) under generally heavy wind and sea ... |
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| Characterization of Long SiAION Ceramic Tubes for Gun Barrel Applications |
JUN 2006 |
118 pages |
| Authors:
Andrew K. Woodruff; John Hellmann; PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| The extent of density gradients, dimensional fidelity, and strength was examined on several different lots of Kennametal TK4 SiAlON proposed for use as gun-tube liners. The formal U.S. Army Research Laboratory designation for this material is ITK4. Five different tubes of material were received, ITK4-4 (200 mm in length) ITK4-6 (100 mm in length) ITK4-7 (100 in length) IFK4-8 (100 mm in length) and ITK4-14 (200 mm in length). Immersion ... |
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| Manikin Testing on LASA Suit |
16 MAR 2006 |
24 pages |
| Authors:
W. Durnford; P. Potter; CORD GROUP LIMITED DARTMOUTH (NOVA SCOTIA)
|
| As part of a BL2 with the Directorate of Aerospace Engineering Support DAES, DRDC Toronto required testing to be conducted on a thermal immersion manikin to evaluate the thermal resistance of the NBC immersion suit LASA in a wave pool. Parallel to the manikin testing, human testing was performed using the same test facilities. In conjunction with this evaluation, the thermal resistance of the ACE extreme cold weather garments and ... |
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| An Evaluation of Ballast Tank Corrosion in Hypoxic Seawater |
12 MAR 2006 |
18 pages |
| Authors:
Jason S. Lee; Richard I. Ray; Brenda J. Little; Edward J. Lemieux; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Investigations were undertaken to evaluate the impact of hypoxia on corrosion within ballast tanks. Carbon steel coupons were exposed to seawater in alternating fill/drain conditions encountered in operational ballast tanks. The following alternating exposure conditions between fill/drain conditions were examined: 1) oxygenated seawater/air, 2) hypoxic seawater (0.2 mg/L O2)/hypoxic gas. The effect of oxygen on corrosion in a hypoxic environment was evaluated by introducing oxygenated air into the hypoxic chamber ... |
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| NSMRL See/Rescue Project Target Detectability Testing, Modeling, and Analysis |
JAN 2006 |
132 pages |
| Authors:
E. Anderson; H. Greenbaum; T. McClay; D. Wilson; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
|
| The Coast Guard (CG) Research and Development Center (RDC), funded by the Naval Submarine Medical Research Laboratory (NSMRL), evaluated the detectability of the See/Rescue (S-R) streamer distress signal device in scenarios relevant to Navy search and rescue operations using data collected during two sea test exercises with the following technical objectives. 1. Determine lateral range curve (LRC) functions and sweep width (W) values for the visual acumen of Naval P-3 ... |
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| Creating a Culturally Prepared Marine Corps |
Jan-2006 |
15 pages |
| Authors:
Monti Smith; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| A culturally diverse and prepared Marine Corps with a language capability of sufficient diversity and numbers to ensure success on any battlefield for any mission will require change. There is an increased interactivity between the United States and its foreign allies and foreign opponents, who often have languages and cultures that are distinctly different from U.S. language and culture. Present operations in the Middle East highlight these cultural and linguistic ... |
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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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| Carbon Steel Corrosion in Key West and Persian Gulf Seawaters at Varying Oxygen Concentrations |
NOV 2005 |
17 pages |
| Authors:
Richard I. Ray; Jason S. Lee; Brenda J. Little; Edward J. Lemieux; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Corrosion of 1020 carbon steel coupons in natural Key West and Persian Gulf seawaters was directly related to exposure conditions. Exposure conditions included the following: stagnant and sloshing, oxygenated and deoxygenated seawater, in addition to, alternating immersion and drying with oxygenated and deoxygenated sea waters. Microbial populations in the two waters fluctuated with exposure conditions. Of all of the exposure conditions, the anaerobic stagnant Key West sea water exposure produced ... |
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| Laser Tweezer Controlled Solid Immersion Lens for High Resolution Imaging in Microfluidic and Biological Samples |
01 JUN 2005 |
9 pages |
| Authors:
Aaron L. Birkbeck; Sanja Zlatanovic; Mihrimah Ozkan; Sadik C. Esener; CALIFORNIA UNIV SAN DIEGO LA JOLLA
|
| A novel technique is presented which integrates the capacity of a laser tweezer to optically trap and manipulate objects in three-dimensions with the resolution-enhanced imaging capabilities of a solid immersion lens (SIL). Up to now, solid immersion lens imaging systems have relied upon cantilever-mounted SILs that are difficult to integrate into microfluidic systems and require an extra alignment step with external optics. As an alternative to the current state-of-art, we ... |
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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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| Effect of the Forearm Tissue Temperature on the Cold Induced Vasodilation |
01 MAY 2005 |
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| Authors:
M. B. Ducharme; D. I. Sessler; A. Doufas; R. Greif; DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA)
|
| Recent work suggests an influence of the mean body skin (Tsk) and deep body temperatures (Tb) on cold-induced vasodilatation (CIVD). For example, minimum finger temperature (Tfi,min)was lower, and the maximum finger temperature (Tfi,max) was greater during CIVD when Tb was elevated, and the onset time of the CIVD response was reduced at higher Tsk. Question remain, though, about the influence of forearm tissue temperature on CIVD at a given Tsk ... |
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| Desmopression Prevents Immersion Diuresis and Improves Physical Performance After Long Duration Dives |
MAR 2005 |
19 pages |
| Authors:
P. A. Nyquist; J. Schrot; J. R. Thomas; D. Hyde; W. R. Taylor; NAVAL MEDICAL RESEARCH CENTER SILVER SPRING MD
|
| Water immersion causes dehydration affecting blood flow to muscle, skin and reduces blood volume. Desmopressin inhibits urine production preventing immersion-induced blood volume loss. This study had two goats 1) examine the effect of Desmopressin on immersion diuresis and 2) any subsequent effects on physical and cognitive performance. Twenty U.S. Navy divers participated in a pool study (72 deg F) and field study (80-82 deg F) for 3.5 hat 10-15 feet ... |
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| Locomotion in Virtual Environments and Analysis of a New Virtual Walking Device |
MAR 2005 |
79 pages |
| Authors:
Murat Onder; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis investigates user interfaces for locomotion in virtual environments (VEs). It looks initially at virtual environments and user interfaces, then concentrates on locomotion interfaces, specifically on the Omni-Directional Treadmill (ODT) (Darken and Cockayne, 1997) and a new virtual walking device, LocoX, which was developed at the MOVES Institute, Naval Postgraduate School. It analyzes and compares the ODT and LocoX in terms of the application of human ability requirements (HARs). ... |
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| Comparison of Image Quality Among Variations in Specimen Tissue Compression and Fluid Immersion for Diffraction Enhanced Imaging |
JAN 2005 |
14 pages |
| Authors:
Christopher A. Parham; NORTH CAROLINA UNIV AT CHAPEL HILL
|
| The current standard for breast cancer screening and diagnosis is screen-film mammography, which utilizes the principle of x-ray absorption to derive image contrast. A new imaging modality called Diffraction Enhanced Imaging (DEI) builds upon conventional x-ray imaging by adding two additional contrast mechanisms of refraction and scatter. Applications of this technique to breast imaging are promising, demonstrating significant improvements in visualization when compared digital mammography. One of the primary reasons ... |
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| Effect of Nifedipine on Core Cooling in Rats during Tail Cold Water Immersion |
SEP 2003 |
5 pages |
| Authors:
Michael J. Durkot; Lawrence de Garavilla; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| Male rats (450 g, n=11/group) were heated at an ambient temperature of 42 degrees C until a rectal temperature of 42.8 degrees C was attained. The rats then received either saline (30 degrees C) + tail ice water immersion (F + I) or saline (30 degrees C) + tail ice water immersion + Nifedipine, a peripheral vasodilator (F + I + N) to determine cooling rate effectiveness and survivability. The ... |
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| Comparison of Image Quality Among Variations in Specimen Tissue Compression and Fluid Immersion for Diffraction Enhanced Imaging |
JUN 2003 |
15 pages |
| Authors:
Christopher A. Parham; NORTH CAROLINA UNIV AT CHAPEL HILL
|
| Significant improvements have been made in mammography over the past two decades; however, all current existing radiographic systems rely on x-ray absorption to define the differences between normal and abnormal tissues. Given the complexity of imaging breast tissue, there are characteristics and findings that are difficult to interpret or missed entirely by conventional methods. A new radiographic imaging method, Diffraction Enhanced Imaging (DEI), has been proposed to extend the capabilities ... |
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| Retention of Pre-Construction Primer in Tank Coating System |
NOV 2002 |
94 pages |
| Authors:
Judie Blakey; Steve Cogswell; Scott DeVinney; Walt FDortenberry; Ernie Miquez; NATIONAL STEEL AND SHIPBUILDING CO SAN DIEGO CA
|
| The overall objective of this project is to investigate the feasibility of retaining preconstruction primer (PCP) as the permanent primer for protective coatings systems applied in ballast tanks. Should the retention of PCP be proven as a viable option, then the process of coatings application in US shipbuilding can be improved resulting in cost savings. New construction dollars will not be spent to remove the PCP prior to the application ... |
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| A Qualitative Analysis of the Performance Measurement and Outcome Management Procedures Applied to the Plebe Summer Program at the United States Naval Academy |
JUN 2002 |
115 pages |
| Authors:
James S. Evans; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The United States Naval Academy is the premier source of officers for the Naval service. It is a four-year total immersion educational experience designed to develop midshipmen morally, mentally, and physically and prepare them for service as either a Naval or Marine Corps officer. The Fourth-Class Indoctrination (Plebe Summer) program is the first military training evolution for most members of the incoming plebe class. The seven-week indoctrination course is intended ... |
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| New Heat and Cold Strain Predictive Indices* |
APR 2002 |
13 pages |
| Authors:
Kent B. Pandolf; Daniel S. Moran; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| PSI has been shown to adequately reflect the associated heat strain for different climatic conditions, types of clothing including protective clothing, various hydration levels, different exercise intensities, gender, and the effects of aging. In addition, adjusted PSI can discriminate the heat strain in non-human species such as rats during exercise-heat stress. Thus, PSI does not seem to require any significant refinements. CSI has been shown to be effective in depicting ... |
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| Cooling of Hands and Fingers Wetted by Snow |
APR 2002 |
3 pages |
| Authors:
Hannu Rintamaeki; Tero Maekinen; Sirkka Rissanen; Juha Oksa; Art Peitso; INSTITUTE OF OCCUPATIONAL HEALTH OULU (FINLAND)
|
| While working with bare hands in winter, hands and fingers get often contact with loose snow. The snow then attaches to the skin and melts quickly, which causes rapid cooling. However, the effect of snow cooling is not quantified. In this study the effect of ca. 2s immersion of hand into pulverized snow on subsequent hand and finger temperatures at - 10 deg C and 2.0 m/s wind were studied. ... |
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| Effects of Hypothermia on Rat Reticuloendothelial Blood Clearance and Particulate Uptake |
MAR 2002 |
20 pages |
| Authors:
David A. DuBose; Candace B. Matthew; David H. Morehuse; James A. Balcius; Ingrid V. Sils; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| Casualties resulting from the French and German incursions into Russia during the winters of the 19th and 20th centuries, respectively exemplify cold weather as a strategic element of war. From Valley Forge to the Chosin Reservoir, the U.S. Army has been made aware of the influence of cold weather conditions on soldier health. In times of relative peace, cold weather injuries for troops under training or deployment exceeded 500 cases ... |
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| Coercive Narratives, Motivation and Role Playing in Virtual Worlds |
2002 |
8 pages |
| Authors:
Jacquelyn F. Morie; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY CA INST FOR CREATIVE TECHNOLOGIES
|
| The leap from a constrained linear story line to a complete world where participants have free will is substantial with many associated possibilities and questions. The concept of interactive narrative has been explored for the past twenty years yet we seem no closer to formulating a cohesive grammar for such works. Open-ended virtual worlds are the most challenging of the new media in this respect Can constrained authorship and free-will ... |
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| Radial Artery Pulse Change During Cold Pressor Test |
25 OCT 2001 |
|
| Authors:
K. W. Mun; K. S. Soh; SEOUL NATIONAL UNIV (REPUBLIC OF KOREA)SCHOOL OF PHYSICS
|
| Applying cold pressor test (CPT) we see consistent change in the waveform of the radial artery pulses whose shapes are classified into three types according to the peaks and valleys The second peak is raised during CPT and returns to the original state after finishing immersion. The increase in the second peak is due to the reflected wave. |
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| Metal Deposition from Organic Solutions for Microelectronic Applications |
OCT 2001 |
|
| Authors:
E. Dahlgren; J. Sun; R. Fang; T. J. O'Keefe; M. J. O'Keefe; MISSOURI UNIV-ROLLA DEPT OF METALLURGICAL ENGINEERING
|
| A unique method for electrochemically depositing metal films from organic solutions was previously demonstrated. It was shown that by plating with this method, metallic particles and layers could be deposited on metals commonly used in the microelectronics industry. The deposition mechanism involved the dissolution of a less noble substrate metal and the simultaneous deposition of more noble metal particles on the surface of substrate, similar to immersion plating in aqueous ... |
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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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| Optimizing the Strength and SCC Resistance of Aluminum Alloys used for Refurbishing Aging Aircraft |
07 MAY 2001 |
113 pages |
| Authors:
Charles P. Ferrer; NAVAL ACADEMY ANNAPOLIS MD
|
| The focus of this report is on the mechanical end corrosion properties of high-strength aluminum alloys. Aluminum alloy 7075, a common material in the aerospace industry, is susceptible to stress-corrosion cracking (SCC) in the T6, or peak-aged temper. The susceptibility of this temper to SCC is alleviated through the use of the T73, or overaged temper. This temper exhibits significantly better SCC resistance, but at a 10-15% strength loss compared ... |
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| Multimodal Displays for Target Localization in a Flight Test |
JAN 2001 |
63 pages |
| Authors:
Robert S. Tannen; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
|
| This study evaluated the role of adaptive cueing interfaces as a means of integrating visual and auditory displays for target designation and was conducted at the Air Force Research Laboratory's Synthesized Immersion Research Environment (SIRE) facility. Twelve pilots with a mean of 2652 flight hours performed a simulated flight task in which they were instructed to maintain a prescribed flight path, air speed, and altitude. Pilots visually searched out- the-window ... |
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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 ... |
|
| Localized Corrosion Analysis Laboratory. |
JUN 2000 |
10 pages |
| Authors:
Rudolph G. Buchheit; G. S. Frankel; OHIO STATE UNIV COLUMBUS
|
| The funds were used to construct the Localized Corrosion Analaysis Laboratory in the Fontana Corrosion Center to study corrosion across all relevant length scales. This laboratory comprises a scanning probe microscopy stations specifically designed for corrosion and electrochemistry, an novel electrochemical microprobe, a rotating ring-disk collections system, a multiplexed electrochemical workstation, a novel multichannel (100 channel) microelectrode array system, a constant extension rate test system, and an alternate immersion exposure ... |
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| Study of Electroactive Polymers as Corrosion Inhibitors of Aluminum 2024-T3 and Cold Rolled Steel. Conducting Polymers of Corrosion Control of Coated Aircraft |
12 JAN 2000 |
46 pages |
| Authors:
Dennis E. Tallman; Gordon P. Bierwagen; Gordon G. Wallace; Chur Vang; Victoria J. Gelling; NORTH DAKOTA STATE UNIV FARGO DEPT OF CHEMISTRY
|
| Chromate surface treatments and chromate-containing epoxy primers are often used for corrosion control of aluminum alloys. However, due to environmental concerns and adverse health effects surrounding such use of chromates, there is an intensive effort to find suitable replacements for chromate-based coatings. Electroactive conducting polymers (ECPs) continue to be of considerable interest as components of corrosion-resistant coating systems. ECPs, in addition to being conductive, are redox active materials, with potentials ... |
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| Static Tester for Characterization of Optical Near-Field Coupling Phenomena |
2000 |
|
| Authors:
Ferry Zijp; Yourii V. Martynov; PHILIPS RESEARCH LABS EINDHOVEN (NETHERLANDS)
|
| We present an experimental set-up for systematical studies of optical near-field coupling phenomena using a solid immersion lens (SIL) to surpass the conventional far field diffraction limit. The set-up incorporates a microscope objective lens with NA=0.80 in combination with a hemispherical SIL manufactured from glass with refractive index n=1.887 and a laser with a wavelength of 430 nm. Test samples are positioned within the evanescent decay distance from the bottom ... |
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| Near-Field Optical Data Storage: Avenues for Improved Performance |
2000 |
|
| Authors:
Tom D. Milster; ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER
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| Because they produce small spot size, near-field techniques are applied to optical data storage systems in order to increase recording density. For data storage, the optical near field is defined in terms of evanescent coupling between the system used to read data and the recording layer. Two practical implementations that use evanescent energy are aperture probes and solid immersion lenses (SILs). In this paper, the basic characteristics of these systems ... |
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| Amplitude and Phase Apodization Caused by Focusing Light Through an Evanescent Gap in SIL Recorders |
2000 |
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| Authors:
Joshua S. Jo; Tom D. Milster; J. K. Erwin; ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER
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| High numerical aperture(NA) vector diffraction theory is used to analyze a near field optical system using a solid immersion lens (SIL). The amplitude and phase of the transmitted light through the system changes as a function of the air gap height as well as indices of refraction, incident angle, etc. We call these 'amplitude apodization' and 'phase apodization'. The characteristics of those are done using supergaussian form. The effects of ... |
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| Polarization Analyses of Readout Signals in Phase Change Material Incorporating a Solid Immersion Lens (SIL) |
2000 |
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| Authors:
Cungo H. Tien; Yin C. Lai; Han P. Shieh; NATIONAL CHIAO TUNG UNIV HSINCHU (TAIWAN) INST OF ELECTRO-OPTICAL ENGINEERING
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| Comprehensive analyses based on rigorous vector diffraction theory have been presented to simulate the readout signal contrast using SIL in reading phase change recording disk. De-polarized reflected light (y-polarized from x-polarized incident beam) results in the reduction of total signal contrast and becomes more obvious for high numerical aperture (NA) systems. Due to the signal degradation from de-polarized reflected light, filtering de-polarized light is applied to signal detection. The x-polarized ... |
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| Improved Mammographic Technique for Breast Cancer Diagnosis |
AUG 1998 |
74 pages |
| Authors:
Heang-Ping Chan; MICHIGAN UNIV ANN ARBOR
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| During the fourth year of the project, we have (a) completed a simulation study of the effects of equalization and filter misalignment, (b) designed and built a prototype compressible tank for equalization with a prone mammography system, (c) studied the dynamic range and contrast for equalization using the new liquid bolus method, and (d) studied the optimization of mammographic imaging techniques by Monte Carlo modeling. We have demonstrated the feasibility ... |
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| Sea Water Immersion of GEM II Propellant |
14 APR 1998 |
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| Authors:
C. I. Merrill; J. D. O'Drobinak; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE WEST
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Reports by Keyword(s)
IMMERSION
