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Defense Technical Information Archive
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Shock induces loss of energy dependent volume control mechanisms, which cause cell and tissue swelling, compression of capillaries, and impairment of microcirculatory O2 transfer. The objective of the study was to increase the tolerance to the low volume state by passively moving water from the cell back into the microcirculation by loading patients with specialized cell impermeant agents. This decompresses and reloads the capillaries, and increases the efficiency of low volume oxygen transfer....
Topics: DTIC Archive, Mangino,Martin J, Virginia Commonwealth University Richmond United States,...
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The Obama Administration released a new National Security Strategy (NSS) on February 6, 2015. It was the second NSS document to be published by the Administration; the first was published in May 2010. The 2015 document states that its purpose is to set out the principles and priorities to guide the use of American power and influence in the world. The NSS is a congressionally mandated document, originating in the Goldwater-Nichols Department of Defense Reorganization Act of 1986 (P.L. 99-433,...
Topics: DTIC Archive, Lucas,Nathan J, Congressional Research Service Washington United States, National...
These briefing charts discuss the accreditation process, accreditation timeline, and activities to date.
Topics: DTIC Archive, Niemeyer,Debra M, 59 MDW/ST JBSA LACKLAND United States
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Briefing chart presentation for the Scientific Panel, 2016 Military Women's Health Research Conference.
Topics: DTIC Archive, Weiss, Karen L, 59th Medical Wing Lackland AFB United States, PREGNANCY, MILITARY...
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Twenty refereed publications were published during the award period. Many of the publications were based on data from the 2009-2011 NPAL Philippine Sea experiments funded by ONR Grant N00014-08-1-0840, Fourteen of these publications appeared in the Special Issue on Deep-water Ocean Acoustics in the Journal of the Acoustical Society of America (Vol. 134, No. 4, Pt. 2 of 2, October 2013).
Topics: DTIC Archive, Worcester,Peter F, University of California San Diego La Jolla United States, Oceans,...
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Our studies evaluate how recurrent dehydration can cause chronic kidney disease, an important question for the military and public. We hypothesize, based on preliminary data, that dehydration associated renal injury results from hyperosmolarity induced activation of renal aldose reductase-fructokinase. We made excellent progress this last year. First, we now have the floxed KHK KO mouse and have generated successful litters so we can proceed with selective renal knockout of fructokinase in...
Topics: DTIC Archive, Johnson,Richard J, Regents of the University of Colorado Aurora United States,...
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Disinfection kinetics of vegetative cells of Bacillus anthracis in water with free available chlorine ([FAC] 2 mg/L) and monochloramine ([MC] 2 mg/L) were established in this study. FAC disinfection was performed in chlorine demand-free phosphate buffer at pH 7 and 8 at two temperatures (5 and 25 deg. C). MC disinfection was performed in normal phosphate buffer at pH 8 at both temperatures. FAC was more effective than MC in causing cell death, which was more rapid at 25 deg. C than at 5 deg. C...
Topics: DTIC Archive, Smith,Lisa S, Edgewood Chemical Biological Center APG United States, cells(biology),...
As part of the Tactical Applications (TacApps) preliminary design effort, the cloud analytics and collaboration environment (CACE) was identified as a potential technology contributor to the TacApps shared workspace. As a follow-on to the preliminary design activities, CACE was analyzed in detail for applicability to the TacApps Program. Methods of analysis included literature review, code inspection, and detailed code analysis. The results of this analysis revealed four specific areas of CACE...
Topics: DTIC Archive, Reid,Tiffany A, ARDEC, WSEC, RDAR-WSF-M Picatinny Arsenal United States, computer...
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Libyas political transition has been disrupted by armed non-state groups and threatened by the indecision and infighting of interim leaders. After an armed uprising ended the 40-plus year rule of Muammar al Qadhafi in late 2011, interim authorities proved unable to form a stable government, address pressing security issues, reshape the countrys public finances, or create a viable framework for post-conflict justice and reconciliation.
Topics: DTIC Archive, Blanchard,Christopher M, Congressional Research Service Washington United States,...
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Six students form a rough circle seated in a seminar room at the Defense Acquisition Universitys Fort Belvoir, Virginia, campus. They lean forward, engaged in animated give-and-take. The students are enrolled in the Program Managers Course (PMT 401),an intensive case-based, 10-week program aimed at improving leadership, critical thinking, problem solving and decision-making skills. Participants in this rigorous, in-residence program hail primarily from the military Services,defense agencies and...
Topics: DTIC Archive, DeLeon,Bobbie, Defense Acquisition University Fort Belvoir United States, defense...
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These briefing charts concern the protection of real-time systems.
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA PITTSBURGH United States, software development,...
Abrasion is an important consideration for the potential release of nanoparticles during the service life of a nanotechnology. This SOP presents a general method for abrading a material using a rotating sample platform in contact with a weighted sandpaper fixture. Particles collected with this method are analyzed with a condensation particle counter (CPC) and a fast mobility particle sizer (FMPS), with additional particles collected on in-line filters for further analysis. The abrading process...
Topics: DTIC Archive, Ramsey,Monica A, Environmental Laboratory,U.S. Army Engineer Research and Development...
The application of price indexes presents a substantial challenge in estimating the costs of new defense systems. The problem is twofold. First, the analyst must use a price index when normalizing historical cost data to a common point in time (where the normalized costs are referred to as base year (BY) dollars in defense acquisitions or, more generally, real dollars) so that these data can be used to help estimate the costs of future systems. Second, as budget requirements for future...
Topics: DTIC Archive, Harmon,Bruce R, Institute for Defense Analyses Alexandria, price index, cost...
This is the final report for a project that was in a series of projects on the development and validation of the EPICcognitive architecture for modeling human cognition and performance. This project focussed on extending thearchitecture to account for sound and speech phenomena, with emphasis on multichannel speech comprehension ina simple command-and-control task for which considerable empirical data is available. Additional work concerned application of the EPIC architecture to Navy research...
Topics: DTIC Archive, Kieras, David E, University of Michigan Division of Research Development Ann Arbor...
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Background: There is a critical need to increase the racial/ethnic diversity of prostate cancer researchers. The goal of the Training Program is to provide research training activities to 12 students over a 3-year period from three Historically Black Colleges and Universities (HBCUs) in South Carolina: Claflin University, South Carolina State University, and Voorhees College. The three aims of the Training Program are: Aim 1.) To provide training in the basics of research design and methods to...
Topics: DTIC Archive, Ford,Marvella E, MEDICAL UNIV OF SOUTH CAROLINA CHARLESTON CHARLESTON United States,...
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We have investigated a range of equilibrium and non-equilibrium many-body phenomena, trapping ultracold atomic gases indifferent geometries including both 3 and 2 spatial dimensions, and with both the conventional harmonic trap and a newly developed box trap. With the 3d harmonic trap, we observed a new superheated Bose-condensed gas which remains condensed above the expected critical temperature, and performed one of the first studies of the strongly-interacting unitary Bose gas. With the 2d...
Topics: DTIC Archive, Hadzibabic,Zoran, University of Cambridge Cambridge United Kingdom, bose einstein...
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This research explored the potential for backward lasing from natural constituents in air with the objective of developing revolutionary methods for standoff detection of trace gases. Backward lasing enables far-field monitoring through modulation methods. The approach utilizes the very high gain available from multiphoton pumping of atomic species, which can be created by the dissociation of molecules in air. Lasing has been demonstrated from oxygen, nitrogen and water vapor. In each of these...
Topics: DTIC Archive, Miles,Richard B, The Trustees Of Princeton University Princeton United States,...
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In 2016, the Congress expects to consider proposals for modifying how the Department of Defense provides health-related services to its eligible beneficiaries. It is important to understand the current cost of the military healthcare benefit and its component elements when considering how the benefit can be modernized and made more sustainable. IDA estimated the cost of delivering care in military treatment facilities (MTFs) and compared those costs with their private sector counterparts. This...
Topics: DTIC Archive, Lurie,Philip M, Institute for Defense Analyses Alexandria United States, HOSPITALS,...
Policymakers and defense acquisition experts have asserted that improved recruitment for the defense acquisition workforce is a necessary component for comprehensive acquisition reform. To help rebuild the workforce and enhance recruitment, DOD has used several hiring flexibilities authorized by Congress, the President, and OPM in recent years. Hiring flexibilities are a suite of tools that are intended to simplify, and sometimes accelerate, the hiring process.
Topics: DTIC Archive, Francis,Kathryn A, Congressional Research Service Washington United States, personnel...
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Information from animal models and population studies suggest that mammary tumor promotion in adult life is influenced by prior exposure to carcinogens in early life. The main purpose of this project is to investigate whether or not activation of the aromatic hydrocarbon receptor (AhR) induces CpG methylation at the BRCA-1 gene, and if this epigenetic event predisposes to development of triple-negative breast cancers (TNBC). Major findings: Preliminary data acquired through the support of this...
Topics: DTIC Archive, Romagnolo,Donato F, The University of Arizona Tucson United States, breast cancer,...
Drug trafficking organizations have increased their prominence throughout the Caribbean and Central America. These organizations undermine the rule of law, increase levels of violence and corruption, and hamper development, all of which can weaken a state. Weak or failing states become domestic and regional burdens that spill over into neighboring countries and cause secondary and tertiary problems. This thesis examines causes for different state capacities in the Caribbean and Central America...
Topics: DTIC Archive, King,Ryan T, Naval Postgraduate School Monterey United States, culture (social...
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Neuromorphic pattern classifiers were implemented, for the first time, using transistor-free integrated crossbar circuits with bilayer metal-oxide memristors. 106- and 108-crosspoint neuromorphic networks were trained in-situ using a Manhattan-Rule algorithm to separate a set of 33 binary images: into 3 classes using the batch-mode training, and into 4 classes using the stochastic-mode training, respectively. Simulation of much larger, multilayer neural network classifiers based on such...
Topics: DTIC Archive, Strukov,Dmitri B, University California Santa Barbara Santa Barbara United States,...
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Nonlinear estimators based on the Kalman filter, the extended Kalman filter (EKF) and unscented Kalman filter (UKF) are commonly used in practical application. The Kalman filter is an optimal estimator for linear systems; the EKF and UKF are sub-optimal approximations of the Kalman filter. The EKF uses a first-order Taylor series approximation to linearize nonlinear models; the UKF uses an approximation of the states joint probability distribution. Long measurement intervals exacerbate...
Topics: DTIC Archive, Frontera,Paul J, NAVAL POSTGRADUATE SCHOOL MONTEREY CA MONTEREY United States, kalman...
Automated speech recognizers (ASR) are now more often found as components inside other applications than as a stand alone application for transcribing speech word-for-word into text. Statistical pattern recognition techniques allow us to acquire a better task-specific evaluation measure for embedded applications than word error rates (WER), which are used for transcription. Our approach considered two applications of ASR: a decision support software system for meetings, in which a summary of a...
Topics: DTIC Archive, Penn,Gerald, University of Toronto Ontario Canada, automated speech recognition,...
Our research and development of 2-micro(m) femtosecond lasers over the past few years include development of mode-locked Tm:fiber lasers, super-continuum generation starting at 2 micro(m), and efficiently converting the femtosecond pulses of well-developed 1-micro(m) mode-locked lasers to 2 micro(m) and 4 micro(m). In this report we briefly overview our past work through this contract on the development of an all-fiber Tm mode-locked laser and super-continuum generation, and early work on...
Topics: DTIC Archive, Byer,Robert L, Stanford University, Ginzton Laboratory Stanford United States, HIGH...
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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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A comparison of a single step global reaction and the detailed GRI-Mech 1.2 for combustion instability modeling in a methane-fueled longitudinal-mode rocket combustor was performed. A single element shear-coaxial injector was operated under two different conditions corresponding to marginally stable and unstable operation in order to evaluate the performance of the chemical kinetics mechanisms on combustion stability. Results show improved prediction in the frequencies and amplitudes with the...
Topics: DTIC Archive, Harvazinski, Matthew E, AFRL/RQRC Edwards AFB United States
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,...
Around 35 of Persian Gulf War soldiers suffer from the Gulf War Illness (GWI). Exposure to organophosphates (OP) is thought to underlie GWI. Disruptions in Ca2 homeostasis are found in many neurological conditions, but has not been studied in GWI. Male Sprague-Dawley rats were exposed to various diisopropyl fluorophosphate (DFP) dose to approximate GW OP exposures. We observed depressive symptoms and cognitive deficits at 3-mos post DFP exposures. At this time-point, acutely isolated CA1neurons...
Topics: DTIC Archive, Deshpande, Laxmikant S, Virginia Commonwealth University Richmond United States,...
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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,...
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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The primary objective of this experimental study was to investigate the effects of high freestream velocity and an upstream ventilated cavity on the loads generated by a zero-net-mass-flux thruster operating in an aqueous environment. In the absence of freestream flow, averaged thrust increased linearly with frequency, up to a limit imposed by the hardware response time. A simple model was developed that predicts thrust to scale linearly with operating frequency and expelled fluid slug stroke...
Topics: DTIC Archive, Ayers , Bradley, California State University - Northridge, Mechanical Engineering...
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In 2016, the federal budget deficit will increase, in relation to the size of the economy, for the first time since 2009, according to the Congressional Budget Offices estimates. If current laws generally remained unchanged, the deficit would grow over the next 10 years, and by 2026 it would be considerably larger than its average over the past 50 years, CBO projects. Debt held by the public would also grow significantly from its already high level. CBO anticipates that the economy will expand...
Topics: DTIC Archive, Anthony,Christina H, Congressional Budget Office Washington United States, Federal...
Viewgraph/Briefing Charts
Topics: DTIC Archive, Guenthner, Andrew J, Air Force Research Laboratory (AFMC) AFRL/RQRP Edwards AFB...
In the project supported by the AFOSR YIP, my laboratory published 24 papers. The goal of this project was to establish the design criteria for elasticity and ductility in conjugated polymers and composites by analysis of the structural determinants of the mechanical properties. We developed coarse-grained molecular dynamics simulations that predicted the mechanical properties of conjugated polymers and polymer-fullerene composites. We elucidated the mechanical properties of a library of...
Topics: DTIC Archive, Lipomi,Darren J, University of California, San Diego La Jolla United States, wearable...
Under the recently completed BRI program, the PI has established a new femtosecond solid dynamics laboratory (FSD) dedicated to the study of the fundamentals of femtosecond laser damage as a function of various parameters, laser wavelength, pulse width, pulse number, experimental ambience (air/vacuum/other), polarization and angle of incidence, target solid material conductivity(metal/semiconductor/insulator), band gap, and surface morphology (nano/micro-structured surface), and the PI's team...
Topics: DTIC Archive, Chowdhury,Enam, Ohio State University Columbus United States, laser pulses, laser...
ZIKV is an arbovirus and member of the family Flaviviridae it is transmitted throughout Africa and Asia and is currently causing an outbreak in South America. Here we present the complete genome sequences of two Zika Virus (ZIKV) strains, Zika virus/H.sapiens-tc/THA/2014/SV0127-14 and Zika virus/H.sapiens-tc/PHL/2012/CPC-0740, isolated from the blood of patients collected in Thailand, 2014 and the Philippines, 2012. Sequencing and phylogenetic analysis showed that both strains belong to the...
Topics: DTIC Archive, Ellison,Damon W, USAMRIID Frederick United States, MOSQUITO BORNE DISEASES,...
One of the overarching challenges of PCRP is to develop effective treatments for advanced prostate cancer. As nano-meter sized vesicles released by many cell types, exosomes serve as vehicles for long range intercellular communications, with the bioactive contents of exosomes as the messengers. It is hypothesized that normal prostate epithelial cells secrete exosomes to keep neighboring epithelial cells from undergoing uncontrolled growth. On the other hand, due to the altered contents of...
Topics: DTIC Archive, Nie,Daotai, Southern Illinois University School of Medicine Springfield United...
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Military SA (sexual assault) is a complex issue that needs attention. No screening for victimization during accessions. SA screening not established in primary care. Improve post SA follow-up care.
Topics: DTIC Archive, Allen,Michael P, 59TH Medical Wing JBSA Lackland United States
Multiple studies have been conducted addressing intensive educational programs to determine clinical outcomes in migraine patients in headache clinics. Chronic headaches within the adolescent population have ben shown to have great morbidity on patient lives, including but no limited to missed school/work days, and loss of parental work time getting to appointments. Some studies have been completed regarding chronic adolescent headaches, but at this time nothing has been published regarding...
Topics: DTIC Archive, Ormond, Andrew J, 959th Medical Group JBSA Lackland United States
This manuscript describes how to prepare fluidic biochips with Rainbow trout gill epithelial (RTgill-W1) cells for use in a field portable water toxicity sensor. A monolayer of RTgill-W1 cells forms on the sensing electrodes enclosed within the biochips. The biochips are then used for testing in a field portable electric cell-substrate impedance sensing (ECIS) device designed for rapid toxicity testing of drinking water. The manuscript further describes how to run a toxicity test using the...
Topics: DTIC Archive, Brennan,Linda M, U.S. Army Center for Environmental Health Research Fort Detrick...
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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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Isothermal titration calorimetry (ITC) is a microcalorimetry technique used to study interactions between biomolecules and ligands in aqueous solution. This ARO equipment grant was provided to enable the purchase of an ITC instrument, foster the development of ITC expertise at the recipient institution, and examine the interactions of divalent metal cations with specific proteins using microcalorimetry techniques. An ITC instrument was purchased, specifically the model PEAQ-ITC from the...
Topics: DTIC Archive, Gary,Ronald K, University of Nevada - Las Vegas Las Vegas United States, calorimetry,...
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We introduce a framework for multimedia event detection (MED), which was developed for TRECVID 2015 using convolutional neural networks (CNNs) to detect complex events via deterministic models trained on video frame data. We used several well-known CNN models designed to detect objects, scenes, and a combination of both (i.e., Hybrid-CNN). We also experimented with features from different networks fused together in different ways. The best score achieved was by fusing objects and scene...
Topics: DTIC Archive, Robinson,Joseph P, MIT Lincoln Laboratory Lexington United States, detection,...
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This project is focused on Systemic Sclerosis (SSc), a progressive fibrotic disease characterized by skin fibrosis and damage to internal organs. While a wide range of environmental and biological triggers have been proposed, no definitive etiologic agents have yet been identified. Metagenomic analysis of non-human sequences in SSc RNA-seq data was used to detect microbial sequences in human tissues in an unbiased, quantitative manner. Our studies suggest that disease pathogenesis includes a...
Topics: DTIC Archive, Whitfield,Michael, The Trustees of Dartmouth College Hanover United States,...
Computer network defense (CND) analysts serve an increasingly vital role in the defense of our nations computing infrastructure. An important component of their work is the monitoring of suspicious activity identified by an intrusion detection system (IDS). While analysts are trained to quickly recognize abnormal patterns in textual log files, humans are generally not well suited for such processing in any large quantity. Many authors have proposed the use of visualization techniques to aid the...
Topics: DTIC Archive, Garneau,Christopher J, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD ABERDEEN PROVING...
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Strategy is a problematic yet often-invoked concept. This thesis explores the 2015 U.S. National Security Strategy (NSS), philosophy, and social theory to develop an alternative framework for the formulation of strategy in the security domain. The 2015 NSS is analyzed for consistency in its concepts and categories. A model of strategic agency is proposed as an alternative framework for developing security strategy. The strategic agency model draws upon actor-network theory and utilizes a novel...
Topics: DTIC Archive, Gaddy,Jonathan W, Naval Postgraduate School Monterey United States, national...
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In this paper rank estimates, called WLS rank estimates and computed using iteratively reweighted least squares, are studied. They do not require the estimation of auxilliary scale or slope parameters nor do they require numerical search techniques to minimize a convex surface. The price is a small asymptotic efficiency loss. In the location model, beginning with a resistant starting value such as the median, the WLS rank estimates have good robustness and computational properties. The WLS rank...
Topics: DTIC Archive, Cheng,Kuo-Sheuon, PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF STATISTICS,...
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Each tragic shooting incident that the American news media covers highlights the problem of gun violence in the United States. However, the focus of this reporting is rarely on the largest component of total gun deaths: suicides. Suicides make up two-thirds of all gun deaths. Limiting access to firearms for individuals with suicidal tendencies could cause a significant reduction in the total number of casualties included in gun violence statics. This thesis examines the efficacy of adding more...
Topics: DTIC Archive, Stewart,Peter A, Naval Postgraduate School Monterey United States, depressive...
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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...
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,...
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This main objective of this project is to construct an optical pump system, which would allow us to carry out optical studies of Er:GaN materials under 980 nm resonant excitation. The results obtained from the optically pumped studies will be utilized to guide crystal growth and laser design. During the supporting period, we have accomplished the following tasks: Successfully completely the installation of a high power 980 laser. The system is dedicated to the studies of the optical and lasing...
Topics: DTIC Archive, Lin,Jingyu, Texas Technical University Lubbock United States, high energy lasers,...
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Purpose: The purpose of this study was to evaluate the level of provider compliance with oral cancer screenings as mandated by the DoD Dental Procedure codes D0120, D0150, and D0180,and to make a basic assessment of provider training and comfort in performing oral cancer screenings. Methods: This study employed a one-tailed online survey that provided descriptive information about the presence or absence of compliance with oral cancer screenings as well as the feeling of competence to complete...
Topics: DTIC Archive, Richards,Cory D, Uniformed Services University of the Health Sciences Ft. Hood United...
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The oodlesDST code is based on OpenFOAM software and performs Large Eddy Simulations of turbulent fluid flows. The code contains a number of specialized subgrid scale turbulence models and wall models. This report describes these models in sufficient detail to allow a new user of the code to make informed decisions regarding the use of these models for particular applications. An overview of the code structure is given and typical solver settings and discretization choices have been illustrated...
Topics: DTIC Archive, Jones,David A, Defence Science and Technology Group Fishermans Bend Victoria...
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Human beings have made the world a much smaller place, but mankind's propensity for violence and the nature of war have not changed. As the global population swells and resources diminish, competition between nations grows on land, on the seas, in the air, and in space. What connects all four of these domains to the people on our planet? Cyberspace, the fifth domain of warfare, is now so ubiquitous and that any military commander who ignores its potential voluntarily cedes the advantage to his...
Topics: DTIC Archive, Hall,Sean, Joint Military Operations Department Newport United States, cyberattacks,...
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I report on the use of a 976-nm, diode-pumped, erbium-doped, yttrium vanadate (Er:YVO4), 1603-nm laser and amplifier. In the first of 2 experiments, a 10-mm-long Er3 :YVO4 slab, cut with its c-axis perpendicular to the laser cavity axis, was pumped in -polarization and lased in -polarization. The laser operated in a quasi-continuous wave regime with nearly 9-W output power and a slope efficiency of about 39 percent with respect to absorbed power. In a second demonstration, a 25-mm-long Er:YVO4...
Topics: DTIC Archive, Newburgh,George A, US Army Research Laboratory, Sensors and Electron Devices...
A numerical study has been performed to investigate the feasibility of hydro-dynamically based detection of propagating submersibles. Of particular concern is the possibility of utilizing microstructure measurements as a means of wake identification. The simulations are based on the Massachusetts Institute of Technology General Circulation Model (MITgcm), which has been modified for wake analysis. The dissipation of a turbulent wake produced by a sphere uniformly propagating in a doubly...
Topics: DTIC Archive, Benbow,Troy A, Naval Postgraduate School Monterey United States, detection,...
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The U.S. Antarctic Program (USAP) is interested in expanding renewable energy capabilities at McMurdo Station, Antarctica, to reduce costs and emissions. Previous assessments considered wind, solar, and geothermal energy resources but not ocean energy resources such as tidal energy. The National Science Foundation, Division of Polar Programs, Antarctic Infrastructure and Logistics, commissioned the Cold Regions Research and Engineering Laboratory to assess the feasibility of a tidal energy...
Topics: DTIC Archive, West,Brendan A, ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH HANOVER United...
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Topics: DTIC Archive, Mastovich,Michael T, MIT Lincoln Laboratory Lexington United States, High Frequency,...
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We investigate high brightness pumping of multi-kW fiber amplifier in a bi-directional pumping configuration. Each pump outputs 2 kW in a 200 m, 0.2 NA multi-mode fiber. Specialty gain fibers, with 17 m MFD and 5-dB/meter pump absorption, have been developed. The maximum fiber amplifier output power is 2550 W, limited by multi-mode instability, with 90% O-O efficiency and M2 1.15. The fiber amplifier linewidth is 12 GHz. We also present kW fiber amplifier results using gain fiber with metalized...
Topics: DTIC Archive, Shatrovoy,Oleg, MASSACHUSETTS INST OF TECH LEXINGTON LEXINGTON United States,...
The Department of State and the Department of Defense (DOD) have long shared responsibility for U.S. assistance to train, equip, and otherwise engage with foreign military and other security forces. The legal framework for such assistance emerged soon after World War II, when Congress charged the Secretary of State with responsibility for overseeing and providing general direction for military and other security assistance programs and the Secretary of Defense with responsibility for...
Topics: DTIC Archive, Serafino,Nina M, Congressional Research Service Washington, military forces(foreign),...
Law enforcement, first responders, and the DOD community require fast, reliable, and inexpensive screening technologies for drugs and other compounds that can pose a threat to safety and health. However, there are gaps in the ability to detect many compounds in the field. For some compounds, the problem may be poor screening tests that can include false positives or impractical limits of detection, and others may have no field tests at all. In this study, we evaluated the potential for several...
Topics: DTIC Archive, Sekowski,Jennifer, ECBC Aberdeen Proving Ground United States, Medical screening,...
Defense Technical Information Archive
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We present a novel fault detection method for application in component-based robotic systems. In contrast to existing work, our method specifically addresses faults in the software system of the robot using a data-driven methodology which exploits the inter-process communication of the system. This enables an application of the approach without expert knowledge or availability of complex software models. We specifically focus on performance bugs, which slowly degrade the performance of the...
Topics: DTIC Archive, Wienke,Johannes, Bielefeld Bielefeld Germany, robotics, autonomous navigation,...
Defense Technical Information Archive
by Defense Technical Information Center
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Mobility is a key element of the US Army's ability to project its forces globally. Getting personnel and equipment in position to operate effectively for long periods requires a variety of systems to work together. There are three means the Army relies on for strategic mobility: airlift, sealift, and pre-positioning. Each of these modes has advantages and disadvantages which allow them to complement each other. This paper is limited to the study of strategic sealift as it supports deployment...
Topics: DTIC Archive, Thompson,Matthew K, US Army Command and General Staff College Fort Leavenworth United...
The purpose of this document is to provide a conceptual framework for a field demonstration of multi-functional, vegetated riparian buffers, which would be placed on reservoir shorelines and riverine tributaries to lakes and reservoirs operated by the United States (U.S.) Army Corps of Engineers (USACE). Riparian buffers will not only provide traditional control of sediment, nutrients, and other chemicals in runoff entering the reservoir, but also potentially provide habitat for federally...
Topics: DTIC Archive, Medina,Victor F, U.S. Army Engineer Research and Development Center Vicksburg United...
Defense Technical Information Archive
by Defense Technical Information Center
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During this reporting period, we succeeded in building a device (TEMPO) that can enrich circulating pancreatic tumor cells from mouse blood by depleting the sample of white blood cells (WBCs). Furthermore, the RNA profile of these cells can be assessed by fluorescence in situ hybridization (FISH) and visualized on the same device. Using the device, this entire process can be conducted in a matter of hours without specialized equipment and a standard fluorescent microscope. These studies set the...
Topics: DTIC Archive, Stanger,Ben Z, Trustees of the University of Pennsylvania Philadelphia United States,...
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New three-dimensional dislocation-density based crystalline plasticity formulations was used with grain-boundary (GB) kinematic interfacial schemes, void nucleation and growth formulations, specialized three-dimensional computational models, nonlinear fracture methodologies, and in-situ experiments to predict how combinations of ductile failure modes initiate and evolve, at different physical scales, to complete rupture in f.c.c. and b.c.c. systems with a focus on aluminum alloys. The proposed...
Topics: DTIC Archive, Zikry,M A, North Carolina State University Raleigh United States, GRAIN BOUNDARIES,...
Defense Technical Information Archive
by Defense Technical Information Center
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We created new molecular-genetic expression vectors for efficient, non-invasive diagnosis and targeted radiopharmaceutical therapy of prostate cancer (PC). The diagnosis vector consists of the tumor-specific PEG-promoter (PEG-Prom) and cDNA of human chorionic gonadotropin beta chain (betahCG) as a reporter. We showed that transfection of the diagnostic vector to PC cells successfully produced detectable betahCG in the media by over-the-counter pregnancy kit and ELISA. We also showed that...
Topics: DTIC Archive, Pomper,Martin, Johns Hopkins UniversityBaltimore Baltimore United States, prostate...
PURPOSE: The purpose of this report is to present preliminary data regarding the use of videography to estimate Silver Carp burst swimming speeds. The authors document the use of videotaped Silver Carp leaping behavior as a means of estimating, in-situ, burst swimming speeds, fish leap height, and horizontal distance traveled during a leap.
Topics: DTIC Archive, Parsons,Glenn R, U.S. Army Engineer Research and Development Center Vicksburg United...
On the second day of the Gulf War in 1991, U.S. defense officials claimed that air strikes the previous night had dealt a crippling blow to Iraqs small nuclear weapons program, though later analysis would find the program to be much larger than, and not as damaged as, it appeared. In March 1993, the South African government announced that it had not only researched the means to build nuclear weapons, but had in fact constructed a handful of the devices and then voluntarily disassembled them all...
Topics: DTIC Archive, Gordon,Brian J, RAND Corporation Santa Monica United States, Deception, nuclear...
The purpose of this study is to extend the basic research findings on spatial representations to a unique application area and extend the small number of applied research studies in this general area to a more robust, Navy-specific application set (i.e., Unmanned Aerial Systems). In this study, participants assumed the role of a sensor operator for an unmanned aerial system (UAS) simulation while riding in the fuselage of an airborne Lockheed P-3 Orion. The P-3 flew a flight profile of...
Topics: DTIC Archive, Geeseman,Joseph W, Naval Air Systems Command NAS Patuxent River United States,...
Our overarching strategy is to exploit three large neuroimaging/neurobehavioral datasets to identify brain-imaging based biomarkers for Autism Spectrum Disorders(ASD). At Yale, we focus on determining if brain networks are influenced by genetic factors and if these genetic factors also influence other traits associated with ASD. Specifically, we will provide heritability estimates and test for pleitropy between putative ASD functional and structural networks and cognitive and behavioral traits....
Topics: DTIC Archive, Glahn,David C, Yale University New Haven United States, biological markers,...
The National Defense Authorization Act for Fiscal Year 2014 mandates an audit of DODs fiscal year 2018 department-wide financial statements. To help achieve this, the DOD Comptroller issued the FIAR Guidance to provide a standard methodology for DOD components to follow to improve financial management and achieve audit readiness, and designated the SBR as an audit priority. Full implementation of the Navys General Fund FIP for FBWT is essential to achieving audit readiness for its General Fund...
Topics: DTIC Archive, U.S. Government Accountability Office Washington United States, NAVY, DEPARTMENT OF...
Defense Technical Information Archive
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To improve cybersecurity, the acquisition community must understand and manage multipledimensions of cyber-attacks both as an opportunity and as a risk that can compromise thebottom line of the organizations they work for and with. In particular, the acquisition community must understand and recognize the cyber threats inherent in procuring complex modern systems with significant cyber components. If cybersecurity is not designated as a requirement of a modern system, it is often challenging to...
Topics: DTIC Archive, Kaestner,Sonia, Georgetown University Washington United States, acquisition,...
Defense Technical Information Archive
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The purpose of this study is to identify the mechanisms whereby the bone marrow microenvironment is involved in regulation of tumor dormancy. Aim1 will identify and explore how disseminated tumor cells (DTCs) stay dormant for long periods of time. We postulate that DTCs drive the bone marrow niche into dormancy through the GAS6 pathway. Aim2 will determine how DTCs escape dormancy, consequently rendering them more susceptible to the chemotherapy. As a major accomplishment of this study during...
Topics: DTIC Archive, Shiozawa,Yusuke, Wake Forest University Health Sciences Winstson-Salem United States,...