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Defense Technical Information Archive
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This grant from ONR to Zwitter Technology, LLC is to develop, scale up and formulate a low-fouling and high-fouling-release marine coating by integrating nonfouling zwitterionic materials and fouling-release silicone materials together. This work facilitates the efforts to develop next-generation marine coatings exceeding the performance of existing commercial coatings. It serves to meet the long-term goal of the ONR coatings program for the development of environmentally benign, effective and...
Topics: DTIC Archive, ZWITTER TECHNOLOGY LLC SEATTLE WA, *ANTIFOULING COATINGS, *SYNTHESIS(CHEMISTRY),...
This study documents the cultural landscape at Picatinny Arsenal, focusing on five existing historic districts. This work looks at the historic development and discusses the existing conditions within each of the five districts. It analyzes the features within each district for their historic significance and integrity, and based on this analysis, makes treatment recommendations. This document meets the requirements for federal agencies to address their cultural resources which are defined as...
Topics: DTIC Archive, ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING...
Defense Technical Information Archive
by Defense Technical Information Center
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The research reported here details a fundamental investigation of two modified germanate based glasses with a specific focus on glass stability during thermal-cycling which is representative of the steps required to fabricate a doped micro-structured germanate fiber. The investigations revealed for germanate fibres, surface crystallisation is the dominant loss mechanism, and may explain the poor performance of all published germanate fiber lasers. The research team have found a composition of...
Topics: DTIC Archive, ADELAIDE UNIV (AUSTRALIA), *GERMANATES, *GLASS FIBERS, *GLASS LASERS, DOPING,...
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by Defense Technical Information Center
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Source: http://www.documentcloud.org/documents/6190733-FOIA-2019-147.html
Document Cloud
by Defense Technical Information Center
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Source: http://www.documentcloud.org/documents/5784918-ADA995289-pdf.html
Defense Technical Information Archive
by Defense Technical Information Center
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At the request of the National Science Foundation, the U.S. Army Cold Regions Research and Engineering Laboratory reviewed available snow survey data and conducted a drifting snow transport analysis for Summit Station, Greenland, to assess the nature of the drifting problems at this site. The severity of drifting during the winter was significantly greater than during summer months; therefore, snowdrift management strategies should focus on minimizing winter accumulations. The transport...
Topics: DTIC Archive, ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND...
Defense Technical Information Archive
by Defense Technical Information Center
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This document summarizes the design features used to create a nesting area for the Common Tern (Sterna hirundo) that was incorporated as part of the maintenance repairs to the harbor breakwater located in Ashtabula, OH. The purpose of the tern nesting project was to demonstrate an option that can be used during such maintenance activities for increasing infrastructure benefits as part of the Engineering With Nature initiative (Bridges 2012). The U.S. Environmental Protection Agency's Great...
Topics: DTIC Archive, ARMY CORPS OF ENGINEERS VICKSBURG MS ENGINEER RESEARCH AND DEVELOPMENT CENTER,...
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by Defense Technical Information Center
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Source: http://www.documentcloud.org/documents/6154946-Responsive-Documents.html
Defense Technical Information Archive
by Defense Technical Information Center
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The central hypothesis for the proposed research is that a collaborative translational autism research program with the military will result in the improved diagnosis and care of those enrolled in the study and enhance biomedical research on the diagnosis, causes, and treatment of autism spectrum disorders (ASD), in general. With approved revised Specific Aims, during this project, we enrolled 65 families (259 individuals) in the existing Central Ohio Registry for Autism, including 26 families...
Topics: DTIC Archive, NATIONWIDE CHILDREN'S HOSPITAL COLUMBUS OH RESEARCH INST, *MENTAL DISORDERS,...
Calculations are presented of vibrational and electronic excited-state absorption spectra for As-H2O complexes using density functional theory (DFT) and time-dependent density functional theory (TD-DFT). DFT and TD-DFT can provide interpretation of absorption spectra with respect to molecular structure for excitation by electromagnetic waves at frequencies within the IR and UV-visible ranges. The absorption spectrum corresponding to excitation states of As-H2O complexes consisting of relatively...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC MATERIALS SCIENCE AND TECHNOLOGY DIV, *ABSORPTION...
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by Defense Technical Information Center
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The goal of this project was to continue to investigate methods and means to further the SERC Capstone Marketplace that was established in previous SERC research in RT-19/19a, RT-43, & RT-105. Having shown that multidisciplinary capstone programs can enhance development of systems engineering competencies, Capstone Marketplace, an online tool, intends to continue matching multi-disciplinary student teams with challenging engineering projects. While web based tools exist for matching...
Topics: DTIC Archive, SYSTEMS ENGINEERING RESEARCH CENTER HOBOKEN NJ, *ONLINE SYSTEMS, *STUDENTS, *SYSTEMS...
Defense Technical Information Archive
by Defense Technical Information Center
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This report documents work carried out by Service Thread to show that domestic technology exists which would reduce base fiber costs, versus current Nomex and Kevlar type threads and the processes and costs associated with such threads. Multifilament polyester yarn was used as a core, treated and untreated. Modified acrylic fiber (Pyro-Tex) was used as the sheath. Core to sheath ratio was 50:50. The NeC 16/2 construction offered excellent physical properties. Modified acrylic fiber shed during...
Topics: DTIC Archive, SAM M BUTLER INC LAURINBURG NC, *PERFORMANCE(ENGINEERING), *SYNTHETIC FIBERS,...
The DoD policy with respect to synthetic fuels is threefold. The first is to qualify and test synthetic fuels to assure the Services that these fuels can be used in fleets of military engines. The second is to provide assistance to the DoE and other Government agencies to achieve early synfuel production capability to meet national security objectives. The third is to assure a common approach and consistency in implementing executive authority under Title I of the ESA and in bringing about a...
Topics: DTIC Archive, Bement, Arden L, OFFICE OF THE DEPUTY UNDER SECRETARY OF DEFENSE (RESEARCH AND...
Defense Technical Information Archive
by Defense Technical Information Center
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This report covered areas of Chester County and Delaware County, Pa. subject to flooding by Crum Creek, Pa. It included a history of flooding along Crum Creek Pa. (to date of report and identified those areas which may be subject to future floods). Special emphasis was given to these possible future flood forecasts thru maps, photographs and profiles. Some aerial photography is provided along with hydrographs and maps.
Topics: DTIC Archive, ARMY ENGINEER DISTRICT PHILADELPHIA PA, *FLOODING, FORECASTING, HISTORY, STREAMS,...
Defense Technical Information Archive
by Defense Technical Information Center
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This project fulfilled two major research objectives: 1) rigorous analyses of cross-national data that have been collected on seven Middle Eastern countries and the presentation/publication of the findings; and 2) the development of a panel survey that was carried out in Tunisia by re-interviewing the nationally representative sample of 3,070 respondents who participated in the survey in 2013. Ajrouch assumed the role of PI in May 2015 because Mansoor Moaddel, the original PI, left Eastern...
Topics: DTIC Archive, EASTERN MICHIGAN UNIV YPSILANTI, *ISLAM, *MIDDLE EAST, *TUNISIA,...
Defense Technical Information Archive
by Defense Technical Information Center
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To combat the rising risk of terrorist threats against our national interest and economic wellbeing - threats such as Weapons of Mass Destruction (WMD) attacks (which could lead to a domino effect of catastrophic failures of power, energy, telecommunications, satellite, transportation, financial, and other critical infrastructures) - this project has developed novel methods to provide protection in our information and communications networks. Main focus was to prepare the network by accounting...
Topics: DTIC Archive, CALIFORNIA UNIV DAVIS, *CATASTROPHIC CONDITIONS, *COMMUNICATIONS NETWORKS, *FAILURE,...
Defense Technical Information Archive
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We have investigated the surface plasmon enhancement of the GeSn p-i-n photodiode using gold metal nanostructures. We have conducted numerical simulation of the plasmonic structure of 2D nano-hole array to tune the surface plasmon resonance into the absorption range of the GeSn active layer. Such a structure is fabricated using FIB on a previously made photodiode for feasibility demonstration. The result indicates that the photocurrent of the diode can indeed be enhanced with the plasmonic...
Topics: DTIC Archive, MASSACHUSETTS UNIV DARTMOUTH, *DETECTORS, *EMITTERS, *NANOSTRUCTURES, *PHOTODIODES,...
Defense Technical Information Archive
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An experiment was conducted in the NASA Langley Continuous Flow Hypersonic Tunnel to measure the heat transfer and pressure distributions on finite span flaps subjected to turbulent boundary layer conditions. Data were obtained for three span widths at deflection angles below that required to induce separation at the compression corner. The results are compared with other experimental data and theoretical predictions. (Author)
Topics: DTIC Archive, Cassel,L A, SCIENCE APPLICATIONS INC IRVINE CA AERONAUTICAL SYSTEMS TECHNOLOGY DIV,...
Defense Technical Information Archive
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Obesity, which induces low-grade inflammation, is a known risk factor for worse prognosis in many cancers including breast. We found that sphingosine-1-phosphate (S1P) produced by sphingosine kinases (SphKs) plays a critical role in obesity-related inflammation and breast cancer. Obesity increased S1P in the tumor microenvironment, as well as in the primary tumors. FTY720, a functional antagonist of S1PR1, dramatically decreased cancer progression by reducing expressions of SphK1 and S1PR1, and...
Topics: DTIC Archive, VIRGINIA COMMONWEALTH UNIV RICHMOND, *BREAST CANCER, *OBESITY, CELLS(BIOLOGY),...
An investigation of the predictive capability of a new Air Force Weapons Laboratory model for transistor and diode failure under reverse bias was initiated. A comparison with the junction capacitance damage model shows a doubled improvement at high confidence levels based on an Army-generated population of experimental damage data. (Author)
Topics: DTIC Archive, Vrabel,Michael J, HARRY DIAMOND LABS ADELPHI MD, *DIODES, *TRANSISTORS, DAMAGE,...
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by Defense Technical Information Center
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This paper addresses nuclear hardness assurance as it relates to system acquisition, prerequisition, prerequisite efforts necessary for an affordable hardness assurance program, and the key aspects of the management of the program. (Author)
Topics: DTIC Archive, Patrick, Rayford P, SOCIETY OF AUTOMOTIVE ENGINEERS INC WARRENDALE PA, *AIRCRAFT,...
Defense Technical Information Archive
by Defense Technical Information Center
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A manikin testing and modeling approach was used to predict the heat strain while wearing a Prototype Steam Suit Ensemble (PSSE) or the current U.S. Navy Submarine Steam Suit Ensemble (SSSE) and working in a steam-filled environment (88 deg C, 100% relative humidity) or a training environment (24 Degrees C, 65% relative humidity). Both ensembles were tested on a thermal manikin to measure thermal resistances. Metabolic rates during walking at 1.8 m/s (4 mph) and wearing the PSSE or the SSSE...
Topics: DTIC Archive, ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA BIOPHYSICS AND BIOMEDICAL...
Defense Technical Information Archive
by Defense Technical Information Center
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Previous research conducted by the RE Mitchell Center for Prisoner of War Studies (REMC) has concluded that optimism proved to be the strongest predictor of health and resilience in a group of Vietnam era Repatriated Prisoners of War (RPWs). Optimism is associated with increased positive psychological health in those afflicted by extreme trauma or illness (Segovia et. al, 2012). In the follow-up study (Segovia et. al, 2015), optimism measured at repatriation was again an excellent predictor of...
Topics: DTIC Archive, NAVY MEDICINE OPERATIONAL TRAINING CENTER PENSACOLA FL, *MENTAL HEALTH, *PRISONERS OF...
It is the intent of this approach to determine in detail the littoral process pattern during any individual storm and to outline the consequent long-term sediment dispersal paths. Based on the developed process response model for the unmodified Cattaraugus Embayment, the report concludes with a prediction of possible sedimentation problems associated with five different breakwater configurations at the Creek mouth. (Author)
Topics: DTIC Archive, Fahnestock,Robert F, STATE UNIVERSITY OF NEW YORK COLL AT FREDONIA DEPT OF GEOLOGY,...
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by Defense Technical Information Center
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The Remote Collaborative 3D Printing project is a collaboration between Strategic System Programs (SSP), the Naval Postgraduate School (NPS), NAVFAC Headquarters Asset Management - Facilities Integrated Product Support (IPS) Program, and the NAVFAC Engineering and Expeditionary Warfare Center (EXWC). The intent of the project was to investigate the end-to-end process of transferring, receiving, manipulating, and printing a digital 3D model into an additively manufactured component. Several...
Topics: DTIC Archive, NAVAL FACILITIES ENGINEERING COMMAND PORT HUENEME CA NAVAL FACILITIES ENGINEERING AND...
Awards: Best Paper Honorable Mention Award at the SIAM (Society for Industrial and Applied Mathematics Conference on Data Mining (SDM). Paper: Scaling log-linear analysis to datasets with thousands of variables. Businesses and Government are investing heavily in their data assets. As data quantities continue to grow rapidly, it is increasingly difficult to extract maximum value from those data stores. Learning to predict the future from past observations is one of the key components that make...
Topics: DTIC Archive, MONASH UNIV CLAYTON (AUSTRALIA), *DATA MINING, APPLIED MATHEMATICS, COMMERCE,...
Defense Technical Information Archive
by Defense Technical Information Center
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The objective of the program was to obtain low cost fibers with tensile strengths greater than 400,000 psi and tensile moduli of 60,000,000 psi. A low cost process for converting concentrated aluminum salt solutions into uniform diameter polycrystalline oxide fibers via thermal decomposition has been developed. The process was used to prepare fibers ranging in composition from 73% alumina, 27% silica to 100% alumina. Fibers in which 0-10% boric oxide was added to the basic alumina-silica...
Topics: DTIC Archive, Fetterolf, Robert N, BABCOCK AND WILCOX CO ALLIANCE OH RESEARCH CENTER, *FIBERS,...
Defense Technical Information Archive
by Defense Technical Information Center
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The objective of this program was to formulate and develop an analytical model based on queueing theory for the purpose of evaluating various tactical voice net configurations and signaling alternatives. Results presented from the analytic queueing model are presented here in the context of specific Naval tactical net situations. The results illustrate only the use of the methodology developed; consequently, mathematical derivations have been omitted with the exception of a brief technical...
Topics: DTIC Archive, Janc, Robert V, IIT RESEARCH INST CHICAGO IL, *VOICE COMMUNICATIONS, MATHEMATICAL...
Defense Technical Information Archive
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Plastic, synthetic ropes, natural fiber ropes, electrical cable insulations, and a wood panel were partially exposed in the black, bottom sediment of Port Heuneme Harbor to determine the effect of hydrogen sulfide on materials. After one year of exposure, the materials were recovered and examined for fouling and biodeterioration. In addition, hardness and moisture absorption tests were conducted on the plastic panels while tensile strength tests were conducted on rope specimens. Significant...
Topics: DTIC Archive, Muraoka, James S, NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA, *MATERIALS, *SEA...
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by Defense Technical Information Center
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Topics: DTIC Archive, Albertine, J R, JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB, *AZIMUTH,...
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by Defense Technical Information Center
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Topics: DTIC Archive, Schwertz, Jerome H, CYCLOPS CORP BRIDGEVILLE PA UNIVERSAL-CYCLOPS SPECIALTY STEEL...
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by Defense Technical Information Center
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The improvement of cathode performance in primary organic electrolyte batteries by conversion of the active material to an electronic semiconductor was investigated in this program. A series of n-type cadmium fluoride single crystals was prepared by a two-stage high-temperature doping process. Initial efforts to prepare n-type manganous fluoride by analogous procedures did not yield a conductive material. The cadmium fluoride crystals were characterized by the measurement of bulk and contact...
Topics: DTIC Archive, Nicholson, Margie M, ATOMICS INTERNATIONAL CANOGA PARK CA, *SEMICONDUCTORS, *PRIMARY...
This literature review surveys and analyses the existing literature, policy and practice in order to support Headquarters Joint Operations Commands comprehensive incorporation of United Nations Security Council Resolution 1325 into Australian Defence Force (ADF) operational planning and conduct. It draws upon academic literature as well as practitioner reports on military implementation of the Women, Peace and Security agenda. The literature review will enhance understanding of good practice...
Topics: DTIC Archive, Hutchinson,Susan, Defence Science and Technology Group Fishermans Bend Victoria...
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by Defense Technical Information Center
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The Return on Investment Tool for Effective Medical Training (RITE-MT) effort sought to develop a decision-support software tool to assess Return on Training Investment (ROTI) by looking at cost, schedule and training performance benefit throughout the training system lifecycle. This includes quantifying the gains achieved in training effectiveness and efficiency. The result of this effort was the development of the Evaluation of Value Added in Learning Systems-RITE-MT (EVALS-R) tool. EVALS-R...
Topics: DTIC Archive, Padron,Christina K, Design Interactive, Inc Orlando United States, COST BENEFIT...
Defense Technical Information Archive
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We describe here a model for inelastic collisions for electronic excitation and deexcitation processes in a general, multifluid plasma. The model is derived from kinetic theory, and applicable to any mixture and mass ratio. The principle of detailed balance is strictly enforced, and the model is consistent with all asymptotic limits. The results are verified with direct Monte Carlo calculations, and various numerical tests are conducted for the case of an electron-hydrogen two-fluid system,...
Topics: DTIC Archive, Le,Hai, Air Force Research Lab/RQRS Edwards AFB United States, EXCITATION
Defense Technical Information Archive
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The Earned Value Management (EVM) division in Performance Assessments and Root Cause Analyses (PARCA) of the Assistant Secretary of Defense for Acquisition serves as the U.S. Department of Defense (DoD) focal point for all policy, guidance, and competency relating to EVM. EVMs role as a tool for integrated program management across DoD has increased in prominence in recent years; yet, as a cross-functional community, EVM faces challenges in workforce management that communities in designated...
Topics: DTIC Archive, Young,Stephanie, RAND Corporation National Defense Research Institute Santa Monica...
Caryopteris clandonensis A. Simmonds ex C. H. Curtis 'Durio' Pink Chablis, (Lamiaceae) a pink-flowered cultivar distinctive among the typically blue-flowered cultivars of bluebeard, is valued as a small, deciduous shrub in the landscape for its mounded growth habit, showy flower display in summer, and attractiveness to insect pollinators. As part of a broader research program examining aromatic compounds from ornamental species as natural alternatives to synthetic chemicals for control of...
Topics: DTIC Archive, Blythe,Eugene K, Mississippi State University Poplarville United States, mosquito...
The focus of this work is on local stability of a class of nonlinear ordinary differential equations (ODE) that describe limits of empirical measures associated with finite-state exchangeable weakly interacting N-particle systems. Local Lyapunov functions are identified for several classes of such ODE, including those associated with systems with slow adaptation and Gibbs systems. Using results from [5] and large deviations heuristics, a partial differential equation(PDE) associated with the...
Topics: DTIC Archive, Budhiraja,Amarjit, University of North Carolina - Chapel Hill Chapel Hill, HIDDEN...
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The theme for this edition of the Defense Acquisition Research Journal is The Method Matters. The lead article is Survey of Modular Military Vehicles: Benefits and Burdens, by Jean M. Dasch and David J. Gorsich, which goes a long way to defining the often-misunderstood word modularity and provides a balanced look at the benefits and drawbacks of this acquisition methodology. Acquisition methodology is also at the heart of a classic article from the Summer 1995 issue of the Acquisition Review...
Topics: DTIC Archive, Defense Acquisition University Fort Belvoir United States, ACQUISITION, MILITARY...
The 2014 Ebola outbreak in West Africa mobilized many U.S. Government agencies to jointly respond to an unprecedented crisis. This event demonstrated how DoD resources can operate to support other governmental agencies responding to public health emergencies and how previously established DoD relationships can be utilized to strengthen efforts preand post-crisis, said Capt. John Gilstad, commanding officer of the U.S. Naval Medical Research Unit No. 3 (NAMRU-3). NAMRU-3 has been operating in...
Topics: DTIC Archive, Naval Medical Research Center Silver Spring United States, Africa, medical research,...
This report offers details regarding the theory and mathematical formulations used within the newly developed nutrient simulation modules (NSMs) and its supporting water quality modules. The NSMs model the aquatic ecosystem by computing the changing concentrations of water quality constituents in a unit volume of water. The NSMs includes two kinetics: NSMI, NSMII. The levels of NSMs are determined by the number of interacting state variables involved in water quality simulation and the degree...
Topics: DTIC Archive, Zhang,Zhonglong, U.S. Army Engineer Research and Development Center Vicksburg United...
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by Defense Technical Information Center
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This report documents the development of second generation Fully Homomorphic Encryption (FHE) schemes providing simple and efficient FHE operations based on standard cryptographic hardness assumptions. These solutions form the current state-of-the-art in fully homomorphic encryption. This was further developed into attribute based encryption schemes, reusable garbled circuits, functional encryption schemes and secure multi-party computations solutions.
Topics: DTIC Archive, Goldwasser,Shafi, Massachusetts Institute of Technology Cambridge United States,...
The goal of this project is to help improve the value and character of defense resource planning in an era of growing uncertainty and complex strategic challenges. Because it is impossible to predict what threats may arise and how defense funding will progress, a new approach is needed to develop robust resource strategies, that is, strategies that perform well over a wide range of threat and funding futures and thus are better at managing surprise. To address this need, RAND researchers...
Topics: DTIC Archive, Lempert,Robert J, RAND Corporation Santa Monica United States, DEFENSE PLANNING
This project evaluated the KRIA water treatment system (also know under the trade name ECOSOAR) for treatment of three environmental contaminants: diesel fuel, PCBs (arochlor 1254) and nutrients (nitrogen forms). The KRIA water treatment system works by charging water with the superoxide radical (O2-), which is electrochemically generated from oxygen in the atmosphere. At the injection site, both cavitation and microbubble reactions may also occur. A review of the literature indicates that...
Topics: DTIC Archive, Medina,Victor F, U.S. Army Engineer Research and Development Center Vicksburg United...
Defense Technical Information Archive
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This Coastal and Hydraulics Engineering Technical Note (CHETN) describes fine-grain sediment flocculation and aggregation and provides guidance and recommendations for incorporating physical sediment process descriptions (relevant to reservoir sedimentation and sediment bypassing) into U.S. Army Corps of Engineers (USACE) numerical sediment transport models.
Topics: DTIC Archive, Floyd,Ian E, ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG United...
Creeping water primroses and water primrose-willows are among the most aggressive aquatic invasive plant invaders in the world. These aquatic Ludwigia species can impart severe ecological, economic, and human health impacts in aquatic ecosystems and threaten critical ecosystem functions. The authors expect these impacts to increase with greater global trade and projected climate change. This technical report presents an overview of the biology and ecology of these invasive plant species, along...
Topics: DTIC Archive, Grewell,Brenda J, University of California-Davis Davis United States, AQUATIC WEEDS
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The purpose of this Coastal and Hydraulics Engineering Technical Note (CHETN) is to develop predictive relationships for characterizing the flood hazard in ungaged basins.
Topics: DTIC Archive, Pradhan,Nawa R, Engineer Research and Development Center Vicksburg United States,...
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by Defense Technical Information Center
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The Hawaii West Maui Region (Figure 1) was the focus of Hawaii Regional Sediment Management (RSM) investigations in fiscal year 2014 (Podoski et al., in preparation). The West Maui Region extends from Hanakaoo in the south through Honolua Bay in the north (Figure 2). The conceptual regional sediment budget developed for West Maui indicates that the shoreline has been relatively stable over the past 17 years (1997 through 2014). Portions of sandy shoreline within the region, however, have been...
Topics: DTIC Archive, Smith,Thomas D, USACE Honolulu District Honolulu United States, WORKSHOPS, COASTAL...
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by Defense Technical Information Center
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This document describes the results of the IRIG schema validation task performed under the direction of the RCC TG Data MUX committee. To meet the task objective, a set of user stories, test cases, and instance documents was defined over a subset of intended functionality. The purpose of this task is to create a method for performing IRIG XML schema validation. As opposed to XML instance document validation that determines if an XML instance document conforms to a schema, this method is used to...
Topics: DTIC Archive, Range Commanders Council White Sands Missile Range United States, XML, TEST AND...
The objective of this Test Operations Procedure (TOP) is to establish a formal procedure for the operation and setup of the Anthropomorphic Test Device (ATD) using the Data Acquisition for Anthropomorphic Test Devices (D4D) in vehicle vulnerability testing. The D4D is an onboard data acquisition system (DAS) that is intended for use with the Hybrid II/III ATDs.
Topics: DTIC Archive, U.S. Army Aberdeen Test Center Aberdeen Proving Ground United States, SAFETY
Defense Technical Information Archive
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Meeting the Soldier-centered intent of the Army Learning Model (ALM) has many challenges, including conducting assessments. Without effective assessment methodologies, instructors will not be able to provide students with tailored learning experiences. This research describes the development of a prototype, proof-of-concept measurement and assessment system for the Army Reconnaissance Course (ARC) to meet assessment challenges. The ARC, with a focus on the development of leader attributes, is...
Topics: DTIC Archive, Ratwani, Krista L, Aptima Woburn United States, army personnel, instructors,...
The wideband coverage of the traditional fast Fourier transform (FFT)-based electronic warfare (EW) receiver is limited by the sampling frequency of the analog-to-digital converter (ADC). Compressed sensing (CS) based wideband EW digital receiver has been proposed and under development to process wideband sparse signals with reduced sampling rate. In this study, we calculated the sensitivity of a CS-based EW receiver. Two modulation schemes of CS are used. One is pseudorandom chip (PRC) and the...
Topics: DTIC Archive, Liou,Lihyeh, Air Force Research Laboratory/RYDR Wright-Patterson AFB, ELECTRONIC...
The Missile Defense Agency (MDA) is developing the Ballistic Missile Defense System (BMDS) to defend the U.S. homeland and U.S. regional friends and allies against ballistic missile attacks from countries such as North Korea and Iran. To counter such threats to the U.S. homeland, the BMDS is designed to combine the capabilities of the Ground-based Midcourse Defense (GMD) system with a network of ground-, sea-, and space-based sensors to provide an integrated, layered defense. GMD defends...
Topics: DTIC Archive, U.S. Government Accountability Office, Washington United States, antimissile defense...
Recent advances in clustering have included continuous relaxations of the Cheeger cut problem and those which address its linear approximation using the graph Laplacian. In this paper, we show how to use the graph Laplacian to solve the fully nonlinear Cheeger cut problem, as well as the ratio cut optimization task. Both problems are connected to total variation minimization, and the related Ginzburg-Landau functional is used in the derivation of the methods. The graph framework discussed in...
Topics: DTIC Archive, Merkurjev,Ekaterina, University of California, Los Angeles Los Angeles United States,...
This TOP provides a quantitative sampling-based biological decontamination protocol to analyze the efficacy of liquid and gaseous/vaporous decontaminants on military-relevant surfaces. The procedures in this TOP were developed for use in research and development and early developmental testing in the test and evaluation phase of an acquisition program, and are not intended for operational testing.
Topics: DTIC Archive, U.S. Army Dugway Proving Ground Dugway United States, BIOLOGICAL WARFARE AGENTS
Venezuelan equine encephalitis virus (VEEV) is a New World alphavirus. There is no licensed vaccine for prophylaxis against VEEV. VEEV is highly infectious in aerosolized form and has been identified as a bio-terrorism agent. The current IND vaccine is poorly immunogenic and does not protect against an aerosol challenge with virulent VEEV. We have previously shown that VEEV inactivated by 1,5 iodonaphthy azide (INA) protects against footpad challenge with virulent VEEV. In this study, we...
Topics: DTIC Archive, Gupta, Paridhi, U.S. Army Medical Research Institute of Infectious Diseases Frederick...
Enlisted aides assist general and flag officers with tasks, such as uniform care, that might otherwise interfere with accomplishing their official duties. Section 504 of the fiscal year 2015 NDAA required DOD to submit to Congress a report specifying enlisted aide duties and allocation procedures; justifying aide authorizations and assignments; recommending changes to the statutory method of calculating aide authorizations; and reducing the overall number of enlisted aides by 40.The fiscal year...
Topics: DTIC Archive, Farrell,Brenda S, U.S. Government Accountability Office Washington United States,...
Defense Technical Information Archive
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During a visit to Washington, DC, several months ago, a colleague and I met with Dr. Dana Johnson at the Department of State.1 The course of our discussion included policy-related issues as they pertain to US space activities. Near the conclusion of our meeting, Dr. Johnson, an adjunct professor at George Washington and Georgetown universities, asked, How do you teach space policy Her question made me think about the various teaching methodologies we use at the National Security Space Institute...
Topics: DTIC Archive, Rauhala,Dwight, Air Force Research Institute Maxwell AFB United States, space...
Cyberspace can provide great opportunities to assist the joint force air component commander (JFACC) in the field. This article explains how the JFACC can best understand, integrate, and command and control (C2) offensive cyber operations into a war plan to produce effects necessary for the mission. The idea of a few keystrokes neutralizing the enemys integrated air defenses will mesmerize just about everyone. Instead of employing a pricey kinetic weapon against a target, a cyber operator can...
Topics: DTIC Archive, Gargan,Jason M, Air Force Research Institute Maxwell AFB United States, command and...
This report is in support of the Marine Corps Force Innovation Office, which is charged with implementing the Marine Corps Force Integration Plan to integrate ground combat occupations and units. We examine female representation and performance in aviation (60XX75XX) and logistics (04XX) primary military occupational specialties (PMOSs) since FY 1987. Female representation, as a percentage, has increased in these occfields over the past three decades, but women tend to leave the Marine Corps at...
Topics: DTIC Archive, Schulte,Jennifer, Center for Naval Analyses Arlington United States, MARINE CORPS,...
The research performed under this BRI award targeted the identification, characterization and manipulation of energy pathways in wall turbulence. The objectives were pursued separately and collaboratively by the California Institute of Technology (Caltech), the University of Florida (UF) and the University of Texas at Austin (UT) teams through a joint numerical, experimental and modeling effort. Our approach applied the team's state-of-the-art capabilities in experiments (Caltech), simulation...
Topics: DTIC Archive, McKeon,Beverley J, California Institute of Technology Pasadena United States,...
Defense Technical Information Archive
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Rapid and accurate sensing of fissile materials at long range may require GeV muon or multi-GeV proton primary beams at intensities beyond present technological limits, and in configurations that are robust, simple and transportable. The simultaneous achievement of milliampere proton intensities at multiple GeV energies in a single stage accelerator has never been achieved for any accelerator type, and no basic science or applied application requires it. Hence the science of WMD Sensing and...
Topics: DTIC Archive, Bromberg,Leslie, Plasma Science and Fusion Center Cambridge United States,...
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Adaptive capacity in response to environmental change exist in all sectors, but some adaptation responses involve significant co-benefits, synergies and trade-offs. This research supports a comparison of historic human responses to environmental change in the Mississippi River and the Nile River, as measured by human security indicator datasets and environmental variability data. The overall goal is to measure regional adaptive capacity and thus understand how to facilitate regional stability...
Topics: DTIC Archive, Nortje,Karen, Council for Scientific and Industrial Research (CSIR) Pretoria South...
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This grant enabled the purchase of an Intel multiprocessor consisting of eight multicore nodes interconnected via an infiniband. Each node contains 24 cores. This parallel computing platform has been used by my research group in the early stages of developing large sparse linear system and symmetric eigenvalue problem solvers (ARO grant W911NF-07-R-0003-04) that are suitable for parallel architectures containing hundreds of multicore nodes (thousands of cores). Once our parallel solvers obtain...
Topics: DTIC Archive, Sameh,Ahmed H, Purdue University West Lafayette United States, MULTIPROCESSORS
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We identified two barriers to the implementation of large-scale photonic quantum networks. First, as scalability requirescreation of reliable and efficient network components that can be operated in large numbers, we developed chip-integratedphoton sources and circuits achieving low-loss transmission in a small footprint, including a guided-wave photon pair sourcein femtosecond-laser written waveguides and chip-integrated interferometers for complex preparation of entangled states.Second,...
Topics: DTIC Archive, Walmsley,Ian, University of Oxford Oxford United Kingdom, quantum computing,...
I visited NSWC Combatant Craft Division in Norfolk. The high speed boats, including unmanned surface vehicles, are built and tested there. I investigated the recent trends of high speed boats in US and introduced the progress of our USV project. And I visited NSWC Carderock Division in Bethesda, and of course I also visited MASK facility and other basins in DTMB. I surveyed the recent high speed model tests in NSWC, and discussed whether our seakeeping and maneuvering planing boat model tests...
Topics: DTIC Archive, Kim, Dongjin, Korea Research Institute of Ships and Ocean Engineering Taejon Korea,...
The upper atmosphere of the Earth is strongly driven by the solar wind and interplanetary magnetic field (IMF), which are only measured about one hour before they encounter the Earth's magnetosphere. This means that it is almost impossible to predict the state of the upper atmosphere without predicting the solar wind and IMF. The research grant focused on predicting the solar wind velocity for up to five days ahead of time. A new model of the solar wind velocity was created using probability...
Topics: DTIC Archive, Ridley,Aaron J, REGENTS OF THE UNIVERSITY OF MICHIGAN ANN ARBOR United States, space...
This research describes a computational study undertaken to determine the effect of a flow control mechanism and its associated aerodynamics for a finned projectile. The flow control system consists of small microflaps located between the rear fins of the projectile. These microflaps alter the flow field in the finned region of the projectile, resulting in asymmetric pressure distribution and thus producing control forces and moments. A number of different geometric parameters, microflap...
Topics: DTIC Archive, Sahu, Jubaraj, US Army Research Laboratory Aberdeen Proving Ground United States,...
The funded project to establish an integrated DNA sequencing system for education and research at Virginia State University has beensuccessfully completed. A facility consisting of two next-generation DNA sequencers, which work in complement to each other, as well as aseries of instruments essential for DNA sample preparation and quality control, has been established in a dedicated laboratory at VirginiaState University. This facility is essential and has begun to be used for research on...
Topics: DTIC Archive, Xie,Xianfa, Virginia State University Petersburg United States, DEOXYRIBONUCLEIC...
Methodology capable of identifying fossil oyster shell (FOS) buried under several meters of sediment is needed to quantitatively assess the availability of FOS for oyster reef restoration in Virginia. Evaluated here is the feasibility of using acoustic sub-bottom seismic surveys for determining the location and quantity of buried FOS. Over 280 miles of seismic surveys and 117 cores were collected in seven regions of the Chesapeake Bay and its tributaries. Traditional methods of seismic...
Topics: DTIC Archive, Wadman,Heidi M, Coastal Observations and Analysis Branch, Field Research Facility,...
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A carbon nanostructure (CNS) composed of highly branched and entangled carbon nanotubes (CNTs) is grown on a fiber surface and used as a carbon-enhanced reinforcement (CER) in a nylon matrix. A majority of the masterbatch CER material research is focused on electromagnetic shielding applications; however, the CER system, with the CNT network fixed to the host fiber, provides a novel approach of minimizing CNT agglomeration. Tensile specimens are injection molded with varying weight percentages...
Topics: DTIC Archive, Minnicino, Michael A, US Army Research Laboratory Aberdeen Proving Ground United...
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The construction method and applied energy significantly influence sample behavior and strength characteristics; therefore, an energy-based sample reconstitution method is derived wherein uncertainties and laboratory scatter associated with soil fabric-behavior variance during sample preparation are mitigated. Samples of two different sands prepared using relative density methods resulted in different strengths at the point of failure; however, when prepared to the same normalized density, the...
Topics: DTIC Archive, Taylor,Oliver-Denzil S, Geotechnical and Structures Laboratory,U.S. Army Engineer...
The objective of the proposed grant was to further explore our recently developed gadolinium-rich semiconducting materials by quantifying the responses to neutrons of these materials, alone and in simple device configurations. Both modeling and laboratory experiments were to supply the data for evaluating the performance of these materials and devices and results of each were be compared with independently obtained data. The lack of quality data from other laboratories curtailed further...
Topics: DTIC Archive, Brand,Jennifer I, University of Nebraska-Lincoln Lincoln United States, gadolinium,...
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Efficient pyroelectric energy conversion would enable portable, wireless power generation capabilities for the Army. This technology relies on the pyroelectric effect in ceramic materials, where the dielectric polarization has a strong temperature dependence. In order to evaluate pyroelectric systems, one must precisely measure and control electric field and temperature while evaluating alternating pyroelectric currents. This technical report describes the modeling, assembly, and performance of...
Topics: DTIC Archive, Sze,Felisa, US Army Research Laboratory Adelphi United States, PYROELECTRICITY,...
This study provides a roadmap for making decisions when formulating mitigation packages presented to regulatory agencies. Natural resource planners, range managers, and other environmental team members can refer to the Coral Reef Transplant Method Implementation Strategy (CRTMIS) for scientific evidence to determine coral reef transplant and mitigation methods. Conversely, CRTMIS provides information that would argue against the transplantation option under certain conditions. Overall, CRTMIS...
Topics: DTIC Archive, Cooke,Cheryl A, SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA SAN DIEGO...