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Defense Technical Information Archive

The Defense Technical Information Center (DTIC) is the premier repository for research and engineering information for the United States Department of Defense. DTIC's Suite of Services is available to DoD personnel, defense contractors, federal government personnel and contractors and selected academic institutions. The general public can access unclassified, unlimited information, including many full-text downloadable documents, through the public Web site, DTIC Online.



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The Army Clerical Speed Test of the Army Classification Battery was revised in the spring of 1966 to make it scorable on the Digitek Optical Scanner. In the revised forms, called ACS-5A and ACS-6A, the response format of the Number Reversal part of the test (Part I) was changed by making the response boxes vertical instead of horizontal; to record his response, the individual makes a vertical line in the new form rather than a horizontal line as in the original format. The items remained...
Topics: DTIC Archive, Maier, Milton H, ARMY BEHAVOIR AND SYSTEMS RESEARCH LAB ARLINGTON VA, *PSYCHOLOGICAL...
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This report presents the results of a project designed to predict the probability of an individual joining the Navy. The data was taken from the National Longitudinal Study of the High School Class of 1972, the Dictionary of Occupational Titles, and the 1970 Census of Population. A model of initial occupational choice was developed and estimated using maximum likelihood techniques. The findings and implications of this research are discussed. (Author)
Topics: DTIC Archive, Wise,Donald E, MATHTECH INC PRINCETON NJ, *ENLISTED PERSONNEL, *RECRUITING, JOBS,...
This report presents maintenance and repair (M&R) guidelines and economic analysis procedures for determining optimum repair strategies for a given airfield pavement. The procedures consist of data collection, condition evaluation, identification of feasible M&R alternatives, performing economic analysis, and selection of the optimum M&R alternative. The primary data to be collected are pavement distress types, severities, and amount. This information is then used to compute a...
Topics: DTIC Archive, Shahin, Mohamed Y, AIR FORCE ENGINEERING AND SERVICES CENTER TYNDALL AFB FL...
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Cryogenic Techniques are applied to the Atomic Hydrogen Maser Frequency Standard to extend the storage time of the atoms and reduce the thermal noise accompanying the signal and within the resonance linewidth. Oscillation has been achieved below 25K using wall coatings of frozen CF 4. A pair of new masers is under construction so that frequency stability improvement can be measured. Stability at the 10 to the -16th power level in Delta f/f for averaging time intervals of 1,000 seconds is...
Topics: DTIC Archive, Vessot,Robert F C, SMITHSONIAN ASTROPHYSICAL OBSERVATORY CAMBRIDGE MASS, *CRYOGENICS,...
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Gravimetry is the science which studies the earth's gravitational field in all its aspects. Applied gravimetry involves measurements of the vertical component of the gravitational field g sub z and the attempt to deduce geologic structure from the data. Any inversion of the gravity data to yield a possible causative mass (or density) distribution will be nonunique (as with inversions of all potential field data); however, by coupling geological constraints and other available geophysical data,...
Topics: DTIC Archive, Butler,Dwain K, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS, *GRAVIMETRY,...
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In recent years the Air Force has developed a standard programming language, J73, for use in embedded computer systems. Now that the Air Force has a considerable investment in systems that are currently being developed with J73, the Department of Defense has selected a high order programming language, Ada, that will become the standard for programming embedded computer systems throughout the Department of Defense. Also under development is the definition of a support environment for Ada. One of...
Topics: DTIC Archive, Brozovic,Richard L, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF...
For more than the last 20 years there has been a concerted effort to solve the stationary Navier-Stokes equations; however, this has only been successful for a few special cases of primarily academic interest. An alternative approach has been to solve the equations numerically, and then compare the results with experiment. On occasion, such comparisons are in good agreement. However, such results are of dubious value since one has no a-priori way of knowing the relevance of such results until...
Topics: DTIC Archive, Gabrielsen,Ralph E, NATIONAL AERONUATICS AND SPACE ADMINISTRATION MOFFETT FIELD CA...
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The purpose of this work is to develop an X-Y addressed electrophoretic image display. Four (4) Phase I displays with very few defects were tested with the recently completed portable driver. Two were multi- chambered to allow evaluation of different suspension formulations under identical conditions. Pigment sticking has been reduced by coating the electrodes and by adding a surfactant to the suspension. New high-purity dyes which result in better contrast are being evaluated.
Topics: DTIC Archive, Liebert, Richard, PHILIPS LABS BRIARCLIFF MANOR NY, *ELECTROPHORETIC COATINGS, *IMAGE...
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At the request of the Naval Mine Engineering Facility (NMEF), the Underwater Sound Reference Detachment (USRD) developed a small reversible audio frequency range transducer. The USRD type F63 transducer is designed to meet the specific need in that it is sensitive and stable with temperature and moderate hydrostatic pressures as required by NMEF to improve their mission capability.
Topics: DTIC Archive, Jevnager, M. D., NAVAL RESEARCH LAB WASHINGTON DC, *PIEZOELECTRIC TRANSDUCERS,...
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An external subroutine is available which performs the discrete Fourier Transform on a multidimensional array of floating point data. The data may be either real or complex. The transform values are always complex and are returned to the array used to carry the original data. The dimensionality of the input array is limited only by machine storage capacity. The number of input samples is not limited to a power of two and, in fact, can be prime in any or all dimensions. The subroutine is called...
Topics: DTIC Archive, Gordon,R L, NAVY UNDERWATER SOUND LAB NEW LONDON CONN, *SUBROUTINES, *DISCRETE...
This study evaluates the mobility performance of 18 selected 1-1/4- to 5-ton cargo trucks in the HIMO West Germany Study Area. The Army Mobility Model (AMM) was used to obtain on-road and off-road mobility predictions in terms of speed profiles for each study vehicle for the dry, wet, and snow surface condition. The SWIMCRIT/WACROSS water-crossing model was used to obtain study vehicle performance crossing linear features. The HIMO methodology was used to establish mobility rating speeds for...
Topics: DTIC Archive, Randolph,Donald D, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS, *CARGO...
The Pyrethroid insecticide Permethrin, 3-phenoxybenzyl-(+ or -)-cis, trans-3-(2,2 dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, was administered to rats as an aerosol. Metabolite studies of the urine showed the presence of significant quantities of Permethrin metabolites for several days following exposure. The pattern of metabolite excretion indicates an extremely efficient mechanism for the metabolism and excretion of this compound.
Topics: DTIC Archive, Gere,Jeffrey A, ARMY ENVIRONMENTAL HYGIENE AGENCY ABERDEEN PROVING GROUND MD,...
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This report deals with the development of a study to determine the effect of antidiuretic hormone (ADH) on kidney salt and water absorption utilizing the stop-flow technique to localize which areas of the nephron were affected by ADH and also how unidirectional Na and H2O fluxes across the nephron were altered in order to study the mechanisms of ADH action. Following the conclusion of these experiments and based on the results, the research was broadened to include the mechanisms of action of...
Topics: DTIC Archive, Mailman,David, HOUSTON UNIV TX DEPT OF BIOLOGY, *HORMONES, *TRANSPORT PROPERTIES,...
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The spectral diffusion within the inhomogeneous linewidth of the T1 from S0 transition is presented for an orientationally disordered organic solid under the condition when kT (approx. 3/cm) is much smaller than the inhomogeneous linewidth (approx. 83/cm). The rate of the transfer is found to increase as the site energy increases. This result is explained in terms of a phonon assisted undirectional (high to low) energy transfer process in which the increasing density of the low energy sites...
Topics: DTIC Archive, Prasad,Paras N, CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY, *ORDER DISORDER...
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The feasibility of conductive adhesive techniques for the electrical interconnection of ITO-coated second surface mirrors has been studied. The good electrostatic performance and the durability of components combining ITO coated aluminized Kapton and aluminum straps by means of a silver loaded silicone have been confirmed by a prequalification program. The charge dissipation mechanisms for silica fabrics in a geosynchronous magnetic substorm environment have been studied by means of various...
Topics: DTIC Archive, Benaissa,B, OFFICE NATIONAL D'EUDES ET DE RECHERCHES AEROSPATIALES TOULOUSE (FRANCE)...
A feasibility experiment was performed on a concept for a remote system for bathymetric mapping in turbid shallow waters. The concept consists of a CO2 laser transmitter and a microphone receiver. The CO2 laser is used from a platform in the air to generate an acoustic field in the water, while the microphone (in air) detects the sound pulses, after being reflected off the bottom sediment. The results of these experiments definitively proved that the CO2 laser/acoustic technique could be used...
Topics: DTIC Archive, Hickman,G Daniel, APPLIED SCIENCE TECHNOLOGY INC ARLINGTON VA, *BATHYMETRY, ACOUSTIC...
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An airborne ozone measuring system was flown to 48km on a large light weight balloon. Excellent data was obtained throughout the flight and the results indicate that this may be an effective method of obtaining ozone profiles to high altitudes. (Author)
Topics: DTIC Archive, Rosen,James M, WYOMING UNIV LARAMIE DEPT OF PHYSICS AND ASTRONOMY, *MEASUREMENT,...
Previous studies have shown that the electrochemical balance between the anodic and the cathodic reactant affects the performance of the cell with regards to safety when it is overdischarged. Others have reported data on the forced overdischarge of cells, but they did not consider cell balance. Prior studies also showed that when excess lithium is present, a reaction occurs between lithium and acetonitrile upon the depletion of the sulfur dioxide. This leads to the formation of methane, lithium...
Topics: DTIC Archive, DiMasi, Gabriel J, ARMY ELECTRONICS RESEARCH AND DEVELOPMENT COMMAND FORT MONMOUTH NJ...
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The dissociation of highly vibrationally excited molecular ions resulting from single infrared photon absorption has been studied. The wavelength dependence of the absorption/dissociation process has been measured, and the photofragments identified. Measurements were also made of the dissociative lifetime following absorption and the photofragment kinetic energy distributions. These measurements show that a strong correlation exists between this single photon dissociation process and the final...
Topics: DTIC Archive, Coggiola,Michael J, SRI INTERNATIONAL MENLO PARK CA, *PHOTONS, *INFRARED RADIATION,...
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This report describes the Environmental Impact Computer System (EICS) and provides instructions for obtaining and using output for the current interactive version of the system. It is recommended that the instructions be used to obtain the most efficient use of the system. (Author)
Topics: DTIC Archive, Baran,Robert, CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL, *COMPUTER...
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Topics: DTIC Archive, Xinmin,Ren, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *INFRARED SCANNING, SPACE...
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Topics: DTIC Archive, ADJUTANT GENERAL'S OFFICE (ARMY) WASHINGTON DC, *APTITUDE TESTS, *RADIO OPERATORS,...
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In this paper we explore how the psychological literature on stress and coping might inform military training programs to enhance mental readiness as a method to develop the baseline psychological resiliency of military personnel. Accordingly, mental readiness training involves an integrated approach, infusing the principles of emotional, cognitive and behavioral control in the context of realistic military training. More specifically, in selected training situations, instructors would note...
Topics: DTIC Archive, Thompson, Megan M, DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA), *PREPARATION,...
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This project aims to couple environmentally-sensitive hydrogel materials with immobilized enzymes and two novel readout techniques to develop general platforms for biosensing. The need for improved testing methods for diabetics as well as the potential for use of glucose level as a general marker of metabolic status is the primary motivation for this work. This project is focusing on the use of sensitive transduction schemes that allow reliable detection of small physical/mechanical changes in...
Topics: DTIC Archive, McShane, Michael J, LOUISIANA TECH UNIV RUSTON, *MEASUREMENT, *SENSITIVITY, *GLUCOSE,...
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Long duration autonomy for unmanned systems is difficult to achieve as current systems are limited to anticipated exceptions and do not adapt to long-term changes in the environment. The project goal is to enable long-term operation in unpredictable environments through adaptive introspection and deployment approaches, emphasizing vehicle and system level adaptation and robustness as a robotic team cooperates toward a common and persistent mission goal. At the vehicle level, we address the...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA, *AUTONOMOUS NAVIGATION, ADAPTIVE SYSTEMS, LONG...
The long range goal of our research was to document the role of viruses in light scattering in the sea. The DEPSCOR project was a joint venture between the University of New England and its affiliate, Bigelow Laboratory for Ocean Sciences. The objectives of this work were to: (1) define the typical time scale for the shift in inherent optical properties (a, b, c, and bb) associated with viral infection of marine bacteria (as compared to non-infected control populations), (2) define the maximum...
Topics: DTIC Archive, NEW ENGLAND UNIV BIDDEFORD ME, *BACTERIA, *OPTICAL PROPERTIES, *PHYTOPLANKTON, *VIRUS...
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Outline. 1. Problem Overview: Why is software (re)certification hard? What s the risk? 2. What kind of solution is needed? 3. Technical Background. 4. Approach, Running Example. Conflict Detection, Reconciliation. 5. Recertification Triggers. 6. Does it scale? 7. Future Work.
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA INST FOR SOFTWARE RESEARCH, *COMPUTER PROGRAMS,...
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The Basic Idea. We want a means to incorporate an ability to meet system availability needs into the supplier selection process. Addressing how do we build in system availability in the supplier selection process? We do this by determining: How important a component is to system availability and How well a supplier performs in providing that important component.
Topics: DTIC Archive, OKLAHOMA UNIV NORMAN SCHOOL OF INDUSTRIAL ENGINEERING, *ACQUISITION, *AVAILABILITY,...
Outline: Selected data sources and availability. Findings from analyses, DoD-wide, Industries Guided Missiles and Space Vehicle, Manufacturing example, Prime contractors, Dependence Subcontracting socioeconomic use, Weapon systems, Supply chain risks. Summary findings and recommendations.
Topics: DTIC Archive, RAND CORP SANTA MONICA CA, *CONTRACTS, *MANUFACTURING, *SPACECRAFT, AVAILABILITY,...
Heart rate complexity (HRC) is an emerging new vital sign for critically ill and injured patients. Traditionally, 800-beat data sets have been used to calculate HRC variables, thus limiting their practical use in an emergency. We sought to investigate whether data set reductions diminish the use of HRC to predict mortality in prehospital trauma patients. Ectopy-free, 800-beat sections of electrocardiogram (EKG) were collected from 31 prehospital trauma patients during their helicopter transport...
Topics: DTIC Archive, ARMY INST OF SURGICAL RESEARCH FORT SAM HOUSTON TX, *ELECTROCARDIOGRAPHY, *HEART...
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The long-term goal is to understand the dynamics of physical oceanographic circulation processes on continental shelves and slopes with emphasis on the mechanisms involved in across-shelf transport.
Topics: DTIC Archive, OREGON STATE UNIV CORVALLIS COLL OF OCEANIC AND ATMOSPHERIC SCIENCES, *CONTINENTAL...
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In this paper, crisis is defined in the security context as resulting of human activities, technological hazard events or natural phenomena, and understood as the situation in which the priority values, interests, preconditions or critical functions of large social systems are seriously threatened, challenged, impaired or overloaded. Lessons from past crisis are reviewed. The main challenge is to enable PPDRs and citizens to (rapidly) generate high levels of situational awareness upon the...
Topics: DTIC Archive, TEKEVER LISBON (PORTUGAL), *CELLULAR COMMUNICATIONS, *EMERGENCIES, *SITUATIONAL...
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The goal of this research is to acquire a quantitative understanding, leading to predictive models, of the broader aspects of linear and nonlinear sound scattering and transmission in bubbly mixtures pertinent to the shallow water ocean acoustics scenario. This includes a conceptual understanding of the role played by stabilization mechanisms in bubble dynamics and longevity. Of particular interest is the phenomenological delineation of different regimes of behavior.
Topics: DTIC Archive, BOSTON UNIV MA DEPT OF AEROSPACE AND MECHANICAL ENGINEERING, *ACOUSTIC SCATTERING,...
To realize an innovative approach, using a gliding autonomous underwater vehicle (AUVG) as a mobile intelligent relay or gateway, connecting an underwater acoustic network to an atmospheric radio network. There is a deployable network of acoustic modems attached to sensor suites for scientific and surveillance purposes (Seaweb and DADS). A communication path to an above-sea control center is required. Slocum gliders equipped with acoustic, radio, and satellite modems will complete the...
Topics: DTIC Archive, WEBB RESEARCH CORP EAST FALMOUTH MA, *GLIDERS, BUOYANCY, INTELLIGENCE, MODEMS,...
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The long-term goals are to refine observational based, conceptual models of interocean exchange processes and their larger scale impact, and to investigate their representation in global and regional numerical simulations.
Topics: DTIC Archive, LAMONT-DOHERTY EARTH OBSERVATORY PALISADES NY, *OCEAN MODELS, *SIMULATION, ARTIFICIAL...
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The long-term goal is to develop finite element procedures for nearshore and shelf-scale operations using unstructured grids which can be adapted in a real-time data assimilative manner. Initial application is to the Yellow Sea, with technology transfer from parallel effort in the Gulf of Maine.
Topics: DTIC Archive, DARTMOUTH COLL HANOVER NH, *FINITE ELEMENT ANALYSIS, *OCEAN CURRENTS, COASTAL...
LONG-TERM GOALS. The ultimate goal is to develop an effective physics-based simulation model that is capable of reliably predicting the motion of a mine-shaped object impacting water surface from air and subsequently dropping through water toward the sea bottom. This deterministic model provides the velocity and orientation of mines as the key input for bottom impact/burial prediction and is an essential building block in stochastic model development for mine burial predictions.
Topics: DTIC Archive, MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING, *BURIED OBJECTS,...
Our long-range objective is to understand how physical, chemical and biological characteristics of bottom sediment affect the optical properties of the shallow sea floor. Of particular interest is the identification of sedimentological parameters that can be resolved using optical methods of remote sensing. Our research focuses on carbonate sediments.
Topics: DTIC Archive, ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FL DIV OF MARINE AND...
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The overall long-term goal of STRATAFORM is to advance our understanding of the development of stratigraphic sequences on continental shelves and slopes. An essential part of this understanding comes from direct measurements of the response of bottom and suspended sediment to oceanic forcing in the study areas. In this project our specific long-term goal is to obtain high quality time-series measurements of flows and sediment parameters in the bottom boundary layer on the continental shelf off...
Topics: DTIC Archive, GEOLOGICAL SURVEY MENLO PARK CA, *SEDIMENT TRANSPORT, *STRATIGRAPHY, BOUNDARY LAYER,...
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The long-term goals of this program are to improve our understanding of sediment transport processes in the nearshore. The interactions between physical forcing mechanisms and sediments lead to spatial and temporal variations in sediment flux, beach erosion, and deposition which drives changes in nearshore morphology. Thus small-scale studies of sediment-fluid interactions provide the link to ultimately understanding large-scale beach response.
Topics: DTIC Archive, WASHINGTON UNIV SEATTLE SCHOOL OF OCEANOGRAPHY, *OCEAN ENVIRONMENTS, *SEDIMENT...
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The principal long-term objective of this work is to determine what factors control the distribution and dynamics of the chromophore-containing constituents of dissolved organic matter (CDOM) in marine and estuarine waters. Two important secondary objectives are 1) to elucidate the photochemical properties of the CDOM and how photochemical reactions affect the optical properties and secondary reactivity of the CDOM, 2) to obtain a clearer understanding of the nature of the underlying...
Topics: DTIC Archive, MARYLAND UNIV COLLEGE PARK DEPT OF CHEMISTRY AND BIOCHEMISTRY, *ORGANIC MATERIALS,...
The long-term goal is to develop a prototype dual-use HF Radar network that could be expanded to ring most of the U.S. coast and is capable of providing both real-time surface current fields and ship tracks to a variety of users.
Topics: DTIC Archive, RUTGERS - THE STATE UNIV NEW BRUNSWICK NJ INST OF MARINE AND COASTAL SCIENCE, *RADAR...
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LONG-TERM GOAL. The long-term goal of this project is to provide a numerically efficient and robust acoustic model for the propagation of waves in a three-dimensional fluctuating shallow water environment. OBJECTIVES. The scientific objectives of this work, as a first step toward the long-term goal, are: 1: Develop a new, more efficient 2D propagation model based on the coupled mode method which is more efficient but as accurate as the parabolic equation (PE) model. 2: Use this model to study...
Topics: DTIC Archive, SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA, *ACOUSTIC VELOCITY,...
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The goals of this project are to improve the characterization of environmental parameters, particularly wave and currents, in mine burial prediction models.
Topics: DTIC Archive, VIRGINIA UNIV CHARLOTTESVILLE DEPT OF ENVIRONMENTAL SCIENCES, *OCEAN MODELS,...
A two dimensional mesoscale atmospheric model is presented based on two systems of dynamical equations, the non-hydrostatic compressible Euler equations and the corresponding hydrostatic system. Both equation systems are discretized with a discontinuous Galerkin method in space and a linear semi-implicit multistep method in time. To cover elementwise polynomial spaces up to order four, exact quadrature rules are used. The method is applied to a terrain following quadrilateral grid. To validate...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF APPLIED MATHEMATICS, *EULER EQUATIONS,...
My ultimate scientific goal is to understand both the biological (e.g., population structure and dynamics and behavior) and physical (e.g., advection, mesoscale physical processes, turbulence) mechanisms that act in concert to produce the observed distributions of plankton in the ocean. My approach has been to conduct a combination of field observations and experiments to measure vital rates (grazing, egg production). Observational studies define the temporal changes in the distributional...
Topics: DTIC Archive, WOODS HOLE OCEANOGRAPHIC INST MA BIOLOGY DEPT, *HYDROGRAPHY, *JAPAN SEA,...
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A 1/10th scaled prototype pulse modulator for an Inertial Electrostatic Confinement (IEC) neutron source has been designed and tested at Los Alamos National Laboratory (LANL). The scaled prototype modulator is based on a solid-state Marx architecture and has an output voltage of 13 kV and an output current of 10 A. The modulator has a variable pulse width between 50 s and 1 ms with 5% droop at all pulse widths. The modulator operates with a duty factor up to 5% and has a maximum pulse...
Topics: DTIC Archive, LOS ALAMOS NATIONAL LAB NM, *MODULATORS, *SOLID STATE ELECTRONICS, PROTOTYPES
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LONG-TERM GOAL. Our long-term goal is to improve the accuracy of numerical prediction models of weather and climate. We shall concentrate on sources of prediction error involving interactions between physical phenomena having different timescales. OBJECTIVES. We examine how inadequate representation of rapidly-varying (i.e., stochastic) atmospheric effects in General Circulation Models (GCMs) can systematically affect prediction on a variety of scales, and how errors arising from this...
Topics: DTIC Archive, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION BOULDER CO CLIMATE MONITORING AND...
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The long-term goals are: 1) to take advantage of the ever-changing ocean environment's effects in order to provide a more complete understanding of long-range acoustic pulse propagation, 2) understanding the extent of fundamental limitations on ray-based acoustic tomography; of particular interest is the breakdown range of semiclassical methods, and 3) to address important basic physics issues that arise in the ocean problem, but within a more general context.
Topics: DTIC Archive, WASHINGTON STATE UNIV PULLMAN DEPT OF PHYSICS, *ACOUSTIC PROPERTIES, *ACOUSTIC WAVES,...
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The long-term goal is to develop forecast systems for wind-driven coastal ocean flow fields.
Topics: DTIC Archive, OREGON STATE UNIV CORVALLIS COLL OF OCEANIC AND ATMOSPHERIC SCIENCES, *COASTAL...
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Background: External fixation has been used extensively during recent wars as a damage control measure for fractures in coalition forces being evacuated. We hypothesize that external fixation is a safe and effective initial stabilization procedure for combat-related open fractures. Methods: Records on 55 consecutive type III tibia fractures between March 2003 and September 2007 were reviewed. We stratified the complications related to external fixation as major, potential, and minor...
Topics: DTIC Archive, ARMY INST OF SURGICAL RESEARCH FORT SAM HOUSTON TX, *BONE FRACTURES, *TIBIA, *WOUNDS...
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LONG TERM GOALS. The long term goals are i) to measure and model the horizontal and vertical coherence of the array data from the North Pacific Acoustic Laboratory (NPAL) and ii) to specify stochastic models for representing these data foe inclusion in broadband passive sonar processing algorithms. OBJECTIVES. Noise fields in most sonar models are characterized nonparametrically wherein the noise coherence matrix for an array of sensors is estimated across frequency with no constraints imposed...
Topics: DTIC Archive, MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING, *ACOUSTIC FIELDS,...
Background: Previous studies identified WoundStat (WS, smectite) and Combat Gauze (CG, kaolin-coated gauze) as the most effective available agents for controlling arterial bleeding with potential utility in casualty care. Tissue sealant properties of WS suggested its potential advantage over clot-promoting CG for treating coagulopathic bleeding. This study compared the efficacy of CG and WS with a fibrinogen-based (FAST) dressing to control bleeding in coagulopathic animals. Methods:...
Topics: DTIC Archive, ARMY INST OF SURGICAL RESEARCH FORT SAM HOUSTON TX, *BLOOD COAGULATION, *DRESSINGS,...
Ten healthy human volunteers were subjected to progressive lower body negative pressure (LBNP) to the onset of cardiovascular collapse to compare the response of noninvasively determined skin and fat corrected deep muscle oxygen saturation (SmO2 ) and pH to standard hemodynamic parameters for early detection of imminent hemodynamic instability. Muscle SmO2 and pH were determined with a novel near infrared spectroscopic (NIRS) technique. Heart rate (HR) was measured con- tinuously via ECG, and...
Topics: DTIC Archive, ARMY INST OF SURGICAL RESEARCH FORT SAM HOUSTON TX, *CARDIOVASCULAR SYSTEM, *MUSCLES,...
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Objective: The purpose of this study was to determine if emergency tourniquet use saved lives. Summary Background Data: Tourniquets have been proposed as lifesaving devices in the current war and are now issued to all soldiers. Few studies, however, describe their actual use in combat casualties. Methods: A prospective survey of injured who required tourniquets was performed over 7 months in 2006 (NCT00517166 at ClinicalTrials.gov). Follow-up averaged 28 days. The study was at a combat support...
Topics: DTIC Archive, ARMY INST OF SURGICAL RESEARCH FORT SAM HOUSTON TX, *MEDICAL SUPPLIES, *WOUNDS AND...
The long-term goal of my research is to understand the optical properties of microbial biofilms, which form coatings on sediments and other surfaces in coastal oceans. The specific project goals are to determine how biofilm coatings may influence (i.e., alter) optical spectra of sediments and other surfaces through reflection, scattering and fluorescence. This project is a part of the CoBOP (Coastal Ocean Benthic Optical Properties) initiative in the Environmental Optics Program.
Topics: DTIC Archive, SOUTH CAROLINA UNIV COLUMBIA DEPT OF ENVIRONMENTAL HEALTH SCIENCES, *AQUATIC...
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My long-term goals are to understand the interaction between the biological and environmental factors that dictate the timing and magnitude of diatom blooms. I am particularly interested in how species behavior is coupled to environmental conditions and how the extent of genetic and physiological diversity within a population influences its future ability to bloom.
Topics: DTIC Archive, WASHINGTON UNIV SEATTLE SCHOOL OF OCEANOGRAPHY, *DEOXYRIBONUCLEIC ACIDS, *DIATOMS,...
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It is shown that Taylor's beampattern for a continuous aperture can be computed analytically without Fourier transforming the weighting function itself, thereby achieving economies in computational effort in some modeling situations. A short Fortran program is given. An approximate formula for the half-power beamwidth is derived. It is pointed out that the Taylor weighting function can be negative for large n_, a fact that does not seem to be well known. In addition, modification of Taylor's...
Topics: DTIC Archive, NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT, *APERTURES, *FORTRAN, *WEIGHTING...
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This document discusses the procedure for using the FASP, Facility for Automated Software Production, located at the Naval Air Development Center in Warminster, Pennsylvania. A datalink from the VAX in building 80 to NADC exists and may be accessed to assemble SPL code which is used within the UYS-1, a signal processor utilized by each sonar system. The procedure for processing the SPL code via the FASP, transforming it into a form usable within the UYS-1, and executing the code is explained.
Topics: DTIC Archive, NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT, *COMPUTER PROGRAMS, *NAVAL SHORE...
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Objective: The purpose of this study is to report the device lessons learned from an emergency tournqiuet program, and in particular, to emphasize analysis of discarded devices recovered after clinical use. Methods: Discarded tourniquet devices were analyzed after use in emergency care of war casualties to determine wear and tear patterns, effectiveness rates, and associations among device designs. Results: The 159 devices recovered comprised seven designs.
Topics: DTIC Archive, ARMY INST OF SURGICAL RESEARCH FORT SAM HOUSTON TX, *LESSONS LEARNED, *MEDICAL...
DREV initiated the Simulated Real-Time Environment (SRTE) project to investigate concepts and capture the real-time requirements of a decision support system that can provide enhanced capability within the Command end Control System to counter the current and anticipated future air and surface threat to the Canadian Patrol Frigate. Among its principal roles, this: system will: continuously take in data from the ship's sensors and other information sources; support the formulation, maintenance...
Topics: DTIC Archive, DEFENCE RESEARCH ESTABLISHMENT VALCARTIER (QUEBEC), *DATA FUSION, COGNITIVE SCIENCE,...
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The use of Unmanned Undersea Vehicles (UUVs) as off-board sensor platforms for complex missions such as MCM reconnaissance requires an acoustic communication link for command and control as well as mission data product upload. The communications link needs to be robust and useful in a number of different scenarios. These scenarios include a variety of frequency regimes and a number of different sized vehicles with different capabilities. However, there is a continuum of performance regions that...
Topics: DTIC Archive, NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI, *ACOUSTIC COMMUNICATIONS, *UNDERWATER...
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The Advanced Integrated Multi-sensing Surveillance (AIMS) system technology demonstration program (TDP) was designed to improve the surveillance and reconnaissance capabilities of the Canadian Forces (CF), particularly at night and in degraded weather conditions. Thereby, to evaluate the utility of this system for Search and Rescue (SAR) operations, evaluation criteria were developed and presented in previous publications. Also, to improve the previous published database, this memorandum...
Topics: DTIC Archive, DEFENCE RESEARCH AND DEVELOPMENT CANADA VALCARTIER (QUEBEC), *MULTISENSORS, *SEARCH...
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The overall goal of this work, now completed, was to develop an extremely fast but accurate radiative transfer model, called EcoLight, for use in coupled physical-biological-optical ecosystem models, and then to demonstrate the ecological necessity and computational feasibility of including accurate light field predictions in coupled physical-biological-optical ecosystem models. Currently available ecosystem models often use fairly sophisticated treatments of the physics (e.g., advection and...
Topics: DTIC Archive, SEQUOIA SCIENTIFIC INC BELLEVUE WA, *ECOSYSTEMS, BIOLOGY, CHLOROPHYLLS, COASTAL...
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This report examines the concept of Naval Command Styles based on a review of readily available literature and interviews with four naval commanders. The work resulted in the development of a definition of Command Style, a concept map and broad recommendations for decision support systems (DSS). The document review identified four main overlapping concepts (Decision style; Leadership style; Delegation style; and Orders style) and four groups of factors affecting the choice or appropriateness of...
Topics: DTIC Archive, HUMANSYSTEMS INC GUELPH (ONTARIO), *COMMAND GUIDANCE, *DECISION SUPPORT SYSTEMS,...
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This project s overarching goal is to quantitatively expand our understanding of turbulent mixing processes in high latitude regions of the global ocean. It focuses on high latitudes because: (1) they are primary sites for surface conditioning of deep waters that drive the meridional overturning circulation, a primary component of the mean global ocean circulation, and one that relies on a balance between mixing and other processes; (2) they provide excellent, and in some cases extreme,...
Topics: DTIC Archive, EARTH AND SPACE RESEARCH SEATTLE WA, *HIGH LATITUDES, *OCEANS, DEEP WATER, GLOBAL,...
One of the major goals of the STRATAFORM Project is to gain a better understanding of how strata form and how they combine to form characteristic stratigraphic sequences, such as drapes, aprons, wedges, sigmoids, and other characteristic geometries. An essential part of this understanding is the analysis and interpretation of surface features and deposits in the upper 50 m of the shelf and slope to provide information on the mechanism of sediment transport and deposition. Interpreting the...
Topics: DTIC Archive, CALIFORNIA UNIV SANTA CRUZ, *ACOUSTIC SIGNATURES, CALIFORNIA, DEPOSITS, SEISMIC...
The purpose of the Proposed Action is to provide EOD personnel with a safe work environment and to provide an updated facility with increased storage capacities and display areas. The Proposed Action is needed to support the Air Armament Center's mission of munitions testing and development. In addition there are special requirements for display areas to store examples of all munitions (inert) that may be found on the test ranges. Additional space is needed to support training and...
Topics: DTIC Archive, SCIENCE APPLICATIONS INTERNATIONAL CORP SHALIMAR FL, *AIR FORCE FACILITIES,...
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The long-term goal of this project is to improve our ability to analyze and predict the upper ocean/lower atmosphere environment, using sophisticated techniques that can exploit data from all available sources. This ability is fundamental to meeting DOD s needs for real-time analysis and improved air/sea simulation and prediction on a variety of scales, including mesoscale to tactical scale support in littoral environments and on the battlefield. To meet these needs, the Naval Research...
Topics: DTIC Archive, NAVAL RESEARCH LAB MONTEREY CA, *AIR WATER INTERACTIONS, *OCEANOGRAPHIC DATA,...
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My long-term goal is to contribute to the advancement of the observations, structural analysis, dynamical diagnosis, and numerical prediction of the life cycles of synoptic-scale and mesoscale weather systems. This includes the influence of planetary-scale, inter-annual and intra-seasonal variability on their evolution. These weather systems include: mid-latitude and arctic oceanic and land-falling cyclones, fronts and their associated cloud, wind, and precipitation systems; upper-level jet...
Topics: DTIC Archive, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION BOULDER CO, *WEATHER,...
Aircraft/wildlife strikes 1 are the second leading causes of aviation-related fatalities. Globally, these strikes have killed more than 400 people and destroyed more than 420 aircraft. While these events are rare when compared to the millions of aircraft operations, the potential for catastrophic loss of human life and property resulting from one incident is substantial. Depending on the force of the impact, the strike may damage or even destroy components of the aircraft, or injure or kill...
Topics: DTIC Archive, FLYING TRAINING WING ( 47TH) LAUGHLIN AFB TX, *AVIATION ACCIDENTS, *BIRD STRIKES, AIR...
The United States Air Force (U.S. Air Force) is proposing to replace the San Andres water line at the Boles Well Field, the northernmost field of the Boles Wells Water System Annex (BWWSA) at Holloman Air Force Base (AFB), near Alamogordo, New Mexico. The existing 12,300 linear feet of 16-inch steel reinforced concrete cylinder pipe are over 50 years old and deteriorated due to age. The project is needed to replace the existing water line, which is the only connection to the southern section of...
Topics: DTIC Archive, TACTICAL FIGHTER WING (49TH) HOLLOMAN AFB NM, *PIPELINES, *WATER SUPPLIES, AIR FORCE...
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LONG-TERM GOALS. The long term goals of this project are to research the physics of high frequency (1-50 kHz) acoustic propagation and ambient noise in the ocean. This work is relevant to many types of Navy sonars such as active ASW and MCM systems and underwater acoustic modems for communications. Improved understanding is leading to better ways to adapt to and exploit the environment for enhanced system performance. OBJECTIVES. One objective of this year s work has been to develop an...
Topics: DTIC Archive, HLS RESEARCH INC LA JOLLA CA, *ACOUSTIC CHANNELS, *AMBIENT NOISE, *DOPPLER SYSTEMS,...
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LONG-TERM GOALS. The long-term goal of this effort is to facilitate ONR 321 Ocean Acoustics Program at-sea experiments through the preparation of scientifically rigorous environmental compliance documentation. OBJECTIVES. The objective of this effort is to conduct analyses of the potential impacts of ocean acoustics tests and to prepare environmental documents compliant with applicable Federal and State statutes and DoD/DoN regulations and policies. APPROACH. For each at-sea underwater active...
Topics: DTIC Archive, MARINE ACOUSTICS INC ARLINGTON VA, *ACOUSTICS, *MARINE BIOLOGY, *OCEANS, *UNDERWATER...
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Our long-term research goals are to understand the circulation and physical properties of the high latitude ocean, both quantitatively and mechanistically, and to do so in a more global context. We also seek to understand the effects of physical processes in the ocean on the ice cover, biology, and chemistry of the marine environment. The variability of that environment is a special focus and concern.
Topics: DTIC Archive, WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB, *ARCTIC OCEAN, *HIGH LATITUDES, *OCEAN...