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Defense Technical Information Archive
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Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *COMPUTER NETWORK...
Defense Technical Information Archive
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While it has been fairly well established that the Army is quick to pass down requirements to individuals and units regardless of their ability to actually comply with the totality of the requirements, there has been very little discussion about how the Army culture has accommodated the deluge of demands on the force. This study found that many Army officers, after repeated exposure to the overwhelming demands and the associated need to put their honor on the line to verify compliance, have...
Topics: DTIC Archive, ARMY WAR COLLEGE CARLISLE BARRACKS PA STRATEGIC STUDIES INSTITUTE, *ARMY PERSONNEL,...
Defense Technical Information Archive
by Defense Technical Information Center
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Department of Defense (DoD) assistance to partner nations often entails supporting their helicopter fleets. In some cases, these fleets are composed of nonstandard rotary-wing (NSRW) aircraft, usually Soviet-era or Russian, European, Chinese, or outdated American equipment. Partner use of NSRW aircraft poses particular problems for U.S. security cooperation activities; understandably, the U.S. military does not have a large base of expertise to support these aircraft in such areas as flight...
Topics: DTIC Archive, RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA, *COST ANALYSIS, *COST...
A swarm of autonomous UAVs can provide a significant amount of ISR data where current UAV assets may not be feasible or practical. As such, the availability of the data the resides in the swarm is a topic that will benefit from further investigation. This thesis examines the impact of le replication and swarm characteristics such as node mobility, swarm size, and churn rate on data availability utilizing reactive protocols. This document examines the most prominent factors affecting the...
Topics: DTIC Archive, AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF...
Among the devastating consequences of extreme events, whether natural or manmade, is the disruption of transportation, communication, and other critical infrastructure systems. The restoration of these systems can be especially challenging due to the fact that damaged infrastructures are often characterized by complex interdependencies. Given a region with interdependent transportation and communication networks, both of which have sustained some damage due to an extreme event, we seek to...
Topics: DTIC Archive, AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF...
Defense Technical Information Archive
by Defense Technical Information Center
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Defense Acquisition University (DAU) is the department's premier software acquisition training institution. Software applications are now the primary method of providing warfighter capability in all of our programs. Education about how to do software acquisition management of the requirements, design, development deployment, operations, maintenance and disposal of software applications is a key factor to providing operationally effective, efficient and timely capabilities for our warfighters....
Topics: DTIC Archive, DEFENSE ACQUISITION UNIV FT BELVOIR VA, *MILITARY PROCUREMENT, COMPUTER PROGRAMS,...
The United States Army uses Vendor Managed Inventory (VMI) replenishment to manage resupply operations while engaged in a combat environment; upper-echelon organizations (e.g., a brigade) maintain situational awareness regarding the inventory of lower-echelon organizations (e.g., battalions and companies). The Army is interested in using a fleet of cargo unmanned aerial vehicles (CUAVs) to perform resupply operations. We formulate an infinite horizon, discrete time stochastic Markov decision...
Topics: DTIC Archive, AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF...
Defense Technical Information Archive
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The 1982 United Nations Convention on the Law of the Sea (UNCLOS0F 1) serves as a comprehensive legal platform for allocation rights and responsibilities as world populations grow and greater stresses are placed on the world s seas for resources. More than 150 states signed this comprehensive document, which contains 320 articles and nine annexes, and covers virtually every aspect of the conduct of nations in the ocean environment. Even though the United States has not yet ratified the...
Topics: DTIC Archive, CENTER FOR NAVAL ANALYSES ALEXANDRIA VA, *EAST CHINA SEA, *INTERNATIONAL LAW,...
Investigations were conducted in the optimization of a lift-off photolithography technique using thick negative photoresist (PR) NR9-8000 to achieve and optimize micron-scale interdigitated capacitor (IDC) structures by lift-off process for use in high-frequency electrical characterization measurements. Target feature resolution was in the range of 3 20 m, with PR thickness in the range of 6 20 m. Systematic deviations were made from manufacturer-recommended PR processing conditions to...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH...
In recent decades, China has become the world's principal source of rare earths extraction, processing and manufacturing of its derivative goods. China's monopoly is partly a result of its rich geological endowment, particularly of the heavy rare earths that are increasingly valuable in green energy and military technology applications. The country's rapid industry consolidation, however, has been abetted by unfair policies such as export restrictions that subsidized domestic producers....
Topics: DTIC Archive, RAND GRADUATE SCHOOL SANTA MONICA CA, *CHINA, *DYSPROSIUM, *GEOLOGY, *NATIONAL...
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The Department of Veterans Affairs (VA) has a mission to help Veterans maximize their economic competitiveness, which we define as the ability to compete and remain relevant in a changing economy. Economic competitiveness isn t just about employment; it encompasses overall employment, earnings, independent living, housing, and educational attainment. Our goal is to help Veterans succeed in every aspect of their lives. VA was asked to evaluate economic competitiveness of Veterans versus...
Topics: DTIC Archive, DEPARTMENT OF VETERANS AFFAIRS WASHINGTON DC, *ECONOMICS, *EMPLOYMENT, *UNEMPLOYMENT,...
Defense Technical Information Archive
by Defense Technical Information Center
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Compressive sensing has been used in many imaging domains to facilitate high quality reconstruction from under-sampled data. This work presents a new reconstruction algorithm for use with under-sampled digital holography measurements and yields reconstruction quality far superior to conventional backpropagation methods. The report describes the new dictionary prior and its use in an iterative soft thresholding algorithm and presents systematic studies of performance versus various physical...
Topics: DTIC Archive, ARIZONA UNIV TUCSON, *DIGITAL IMAGES, *DIGITAL SYSTEMS, *HOLOGRAPHY, ALGORITHMS,...
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Cost growth is a persistent adversary to efficient budgeting in the Department of Defense. Despite myriad studies to uncover causes of this cost growth, few of the proposed remedies have made a meaningful impact. A key reason may be that DoD cost estimates are formulated using the highly unrealistic assumption that a program s current baseline characteristics will not change in the future. Using a weather forecasting analogy, the authors demonstrate how a statistical approach may be used to...
Topics: DTIC Archive, DEFENSE ACQUISITION UNIV FT BELVOIR VA, *ACQUISITION, *COST ESTIMATES, *DEPARTMENT OF...
Defense Technical Information Archive
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The present study examined how team performance on a military-related task is affected by having a person with a prior head injury as a team member. U.S. Army Soldiers (N=39) participated in an experimental procedure where they worked with a partner (a study confederate) who either did/did not have a history of head injury. The participants and confederate communicated via a computer chat function on a task that was dependent on teamwork for success. Team performance was determined by a final...
Topics: DTIC Archive, ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL, *ATTITUDES(PSYCHOLOGY), *MILITARY...
Defense Technical Information Archive
by Defense Technical Information Center
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Cost imposition strategies focus on eliciting an adversary response that creates a hardship differential favoring the initiating nation. There is new interest in cost-imposing strategies as the most beneficial element of the competitive spectrum. If applied against China, cost-imposing strategies can succeed when based on correct predictions of Chinese responses and accurate accounting for the monetary and other security costs involved. In the air domain, competition involving China's ballistic...
Topics: DTIC Archive, AIR UNIV MAXWELL AFB AL AIR FORCE RESEARCH INST, *CHINA, *DEFENSE SYSTEMS, *MILITARY...
its arrival in Afghanistan in 2001, the U.S. military has needed to dispose of solid waste generated by personnel at installations throughout the country. The U.S. military presence in Afghanistan eventually reached a peak of about 110,000 personnel in 2011, which generated about 440 tons of solid waste each day, including plastics, dining facility food, aerosol cans, electronic equipment, furniture, metal containers, tires, and batteries. During most of the first four years of contingency...
Topics: DTIC Archive, SPECIAL INSPECTOR GENERAL FOR AFGHANISTAN RECONSTRUCTION ARLINGTON VA, *MILITARY...
Future demands on the Air Force Warfighter will require dramatic advances in active materials utilized by the Warfighter (e.g., for remote, prolonged energy conversion and highly tunable sensing/response), as well as in the training and performance of the Warfighter (e.g., for enhanced memory and attention). Of equal importance for future Air Force technology is the training of U.S. graduate students in the development of such advanced materials and protocols for enhanced cognition. The BIONIC...
Topics: DTIC Archive, GEORGIA TECH RESEARCH CORP ATLANTA, *COMPOSITE MATERIALS, ATTENTION, COGNITION,...
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How do we formally verify security properties in today s malleable and evolving Commodity System Software (COSS) ecosystem? Recent advances in applying formal methods to systems software, e.g., IronClad [16] and seL4 [19], promise that this vision is not a fool s errand after all. In this position paper we explore the challenges involved in this problem, what research questions the state of the art leaves still open, and our proposal for the next step towards realizing this vision.
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *COMPUTER NETWORK...
Three newly identified cross-slip mechanisms from atomistic simulations of fcc crystals, namely surface, bulk and intersection cross-slip types, were hierarchically informed into discrete dislocation dynamics simulations. The influence of each cross-slip type on the evolution of the dislocation microstructure in face-centered cubic microcrystals having different crystal sizes and initial dislocation densities was investigated. Dislocation pattern formation, surface slip localization and initial...
Topics: DTIC Archive, AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING...
Defense Technical Information Archive
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Topics: DTIC Archive, ARMED FORCES HEALTH SURVEILLANCE CENTER SILVER SPRING MD, *INFECTIOUS DISEASES,...
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As the Alzheimer's disease field moves to studies and intervention trials in the preclinical phase and early prodromal period, it will be necessary to measure everyday function in an increasingly more sensitive and sophisticated way to capture more subtle impairments. One approach to increasing sensitivity in functional measures is to use performance based instruments, such as the UCSD Performance-based Skills Assessment (UPSA), in Mild Cognitive Impairment (MCI) or mild Alzheimer' disease (AD)...
Topics: DTIC Archive, FEINSTEIN INST FOR MEDICAL RESEARCH MANHASSET NY, *ALZHEIMER DISEASE, COGNITION,...
Defense Technical Information Archive
by Defense Technical Information Center
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The PI has made her effort in developing robust, efficient and high order multi-scale numerical algorithms for kinetic equations with her group members. Truly multi-scale and multi-dimensional approaches have been developed for the kinetic simulations with potential applications to plasma physics and rarefied gas dynamics. During 2012-2015, the PI and her group members have published/submitted sixteen papers in top journals in the field. These include eight papers published in Journal of...
Topics: DTIC Archive, HOUSTON UNIV TX, *COMPUTATIONAL FLUID DYNAMICS, *GAS DYNAMICS, *HYDRODYNAMICS,...
Defense Technical Information Archive
by Defense Technical Information Center
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The Joint Task Force- Port Opening is a GRF assigned non-standing JTF designed to rapidly deploy in support of GCC requirements to rapidly open a port of debarkation prior to the arrival of RFF units. Once activated, JTF-PO assigned units transition operational control from their respective assigned Army, Air Force, and Navy chains of commands directly to USTRANSCOM for the duration of employment. This paper examined the current command construct through the lense of Mission Command Philosophy...
Topics: DTIC Archive, ARMY COMMAND AND GENERAL STAFF COLLEGE FORT LEAVENWORTH KS, *DEPLOYMENT, *JOINT...
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Stewards of the profession and protectors of the nation, Army leaders have an immense responsibility to ensure the current and future success of the Army. This responsibility is less about the hard skills of cognitive intelligence, technical knowledge, and tactical proficiency and more about the soft skills of emotional intelligence. Emotional intelligence competencies parallel, enhance, and even enable the Army leader attributes and competencies. The Army leadership doctrine fails to identify...
Topics: DTIC Archive, ARMY COMMAND AND GENERAL STAFF COLLEGE FORT LEAVENWORTH KS, *ARMY PERSONNEL,...
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Topics: DTIC Archive, OFFICE OF THE ASSISTANT SECRETARY OF DEFENSE (LOGISTICS AND MATERIAL READINESS)...
The majority of the international natural disaster relief operations that the USG responds to are led by the United States Agency for International Development's Office of Foreign Disaster Assistance. One of the leading issues of the study examines the inter-working relationships and coordination efforts regarding seamless humanitarian logistics from prepositioned sites supported from the DOD, interagency partners, and coalition partners for the affected state. A major problem within a...
Topics: DTIC Archive, ARMY COMMAND AND GENERAL STAFF COLLEGE FORT LEAVENWORTH KS, *HUMANITARIAN ASSISTANCE,...
Defense Technical Information Archive
by Defense Technical Information Center
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Currently there are no natural disease-modifying treatments for Parkinson's disease (PD). Microarray analyses have implicated decreased expression of proliferator-activated receptor gamma co-activator-1 alpha (PGC-1 alpha) as a potential pathobiologic link to the mitochondrial dysfunction in Parkinson's disease (PD). In vitro and in vivo studies show that PGC-1 deficiency increases the susceptibility to MPTPinduced neurotoxicity, and enhanced PGC-1 levels protect neural cells from oxidative...
Topics: DTIC Archive, GEORGETOWN UNIV WASHINGTON DC, *ANTIINFLAMMATORY AGENTS, *PARKINSONS DISEASE,...
This goals of this project are 1) to advance THz waveguide-based methods to measure and fundamentally understand THz vibrational spectra of threat materials, and 2) to create methods to propagate ultrashort THz pulses in the ambient atmosphere of long paths ( 100 meters) for detection of target vapors. Towards the first goal, significant progress was made generalizing the ability of THz waveguide spectroscopy to resolve previously undetected vibrational fingerprint resonances, in understanding...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC ELECTRONICS SCIENCE AND TECHNOLOGY DIV, *EXPLOSIVES,...
Here we identify a conserved feedback mechanism that monitors the relative position of lagging chromosomes during anaphase via the differential phosphorylation of the histone variant H3.3 at Ser31. We examined non-transformed cells induced to missegregate chromosomes by transiently depolymerizing spindle microtubules with cold. After re-warming, correlative same cell live and fixed imaging revealed that isolated chromosomes (e.g. lagging in anaphase) have hyper-phosphorylated H3.3 Ser31 (pS31)...
Topics: DTIC Archive, MINNESOTA UNIV MINNEAPOLIS, *BRAIN, *CHROMOSOMES, *HISTONES, *MITOSIS, *NEOPLASMS,...
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Cigarette smoking, the major cause of lung cancer, creates a field of injury throughout the respiratory tract. We have previously shown that gene expression from bronchial epithelial cells reflects the physiologic response to cigarette smoke exposure and can serve as a diagnostic biomarker for lung cancer. The purpose of this Idea Development Award is to conduct single cell RNA sequencing on airway epithelial cells obtained from smokers with and without lung cancer to identify cell-type...
Topics: DTIC Archive, BOSTON UNIV MA SCHOOL OF MEDICINE, *BRONCHI, *EPITHELIUM, *GENE EXPRESSION, *LUNG...
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The specific aims of the study are to: 1) examine body weight and fat changes associated with participation in a population-based intervention, 2) examine changes in fitness associated with participation in a population-based intervention, and 4) evaluate the maintenance of changes in body weight, body fat, and fitness after discontinuation of the promotion associated with the H.E.A.L.T.H. program. The study is a cluster (group) randomized trial in which clusters of Army National Guard units...
Topics: DTIC Archive, PENNINGTON BIOMEDICAL RESEARCH CENTER BATON ROUGE LA, *BODY WEIGHT, *MILITARY...
Over the past two decades, China s People s Liberation Army (PLA) has transformed itself from a large but antiquated force into a capable, modern military. Although China continues to lag behind the United States in terms of aggregate military hardware and operational skills, it has improved its capabilities relative to those of the United States in many critical areas. Moreover, China does not need to catch up fully to the United States to challenge the U.S. ability to conduct effective...
Topics: DTIC Archive, RAND PROJECT AIR FORCE SANTA MONICA CA, *MILITARY CAPABILITIES, *MILITARY...
In 2012, RAND published a report titled U.S. Military Information Operations in Afghanistan: Effectiveness of Psychological Operations 2001 2010,1 which concluded that there was a disconnect between the doctrine and practice of information operations (IO) in the field that was counterproductive to effective and efficient operations. The report made several recommendations for improving the effectiveness of IO in Afghanistan, including the need for a cohesive strategy better integrating IO with...
Topics: DTIC Archive, RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA, *MILITARY DOCTRINE, *MILITARY...
The differences between earthquakes and explosions are largest in the highest recordable frequency band. In this band, scattering of elastic energy by small-scale heterogeneity (less than a wavelength) can equilibrate energy on components of motion and stabilize the behavior of the Lg wave trapped in the Earth's crust. Larger-scale deterministic structure (greater than a wavelength) can still assume major control over the efficiency or blockage of the Lg and other regional/local seismic waves....
Topics: DTIC Archive, CONNECTICUT UNIV STORRS DEPT OF PHYSICS, *EARTHQUAKES, *EXPLOSIONS, *FREQUENCY BANDS,...
This systematic review aims to synthesize evidence from trials of Mindfulness-Based Relapse Prevention (MBRP) to provide estimates of its efficacy and safety for substance use disorders (PROSPERO record CRD42015016380). In December 2014, we searched PubMed, PsycINFO, AMED, CINAHL, CENTRAL, Web of Science, and bibliographies of existing systematic reviews and included studies to identify English-language randomized controlled trials (RCTs) evaluating the efficacy and safety of MBRP used...
Topics: DTIC Archive, RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA, *CLINICAL TRIALS, *DRUG ABUSE,...
The objective of this proposal is to develop new technology for substantially improving the sensitivity of ultrasound to prostate cancer. This technology will be enabled by recent advances in ultrasound transducer fabrication techniques and ultrasound contrast imaging approaches. We hypothesize that a transrectal ultrasound probe utilizing a novel dual-frequency ultra-broadband approach will provide a new highly-sensitive diagnostic technique for prostate cancer imaging. Aim 1) Develop a new...
Topics: DTIC Archive, NORTH CAROLINA UNIV AT CHAPEL HILL, *CANCER SCREENING, *PROSTATE CANCER,...
During the grant period, the growth and optimization of indium-rich InGaN layers grown by high-pressure metalorganic chemical vapor deposition (MOCVD) was explored at reactor pressures from 5 to 20 bar and at growth temperatures of 700-900 deg C. The goal was to evaluate the reactor pressure and growth temperature relation at which indium-rich In1-xGaxN layers can be stabilized. The results showed that for a pressure at 15 bar, the growth temperatures for InGaN varies from 850 deg C (InN) to...
Topics: DTIC Archive, GEORGIA STATE UNIV ATLANTA DEPT OF PHYSICS AND ASTRONOMY, *GALLIUM NITRIDES, CHEMICAL...
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This chapter studies the problem of time-series classification and presents an overview of recent developments in the area of feature extraction and information fusion. In particular, a recently proposed feature extraction algorithm, namely symbolic dynamic filtering (SDF), is reviewed. The SDF algorithm generates low-dimensional feature vectors using probabilistic finite state automata that are well-suited for discriminative tasks. The chapter also presents the recent developments in the area...
Topics: DTIC Archive, PENNSYLVANIA STATE UNIV STATE COLLEGE DEPT OF ELECTRICAL ENGINEERING, *FEATURE...
The InAs quantum dot (QD) grown on GaAs substrates represents a highly performance active region in the 1 - 1.3(mu) m wavelength range. The use of such QDs in vertical-cavity devices has resulted in high-power and broad gain bandwidth VECSELs in the NIR. In this project we demonstrate growth and design of InAs QD based VECSELs in the 1200 -1300 nm wavelength range with record CW output powers. We utilize a resonant periodic gain (RPG) structure with a single QD layer per standing wave antinode...
Topics: DTIC Archive, NEW MEXICO UNIV ALBUQUERQUE, *QUANTUM DOTS, *VERTICAL CAVITY SURFACE EMITTING LASERS,...
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This National Counterintelligence Strategy of the United States of America 2016 (Strategy) represents an evolution in our approach to a whole-of-government awareness of and response to foreign intelligence entity (FIE) threats. In recent decades, the United States Government has made extraordinary strides adapting to changing fiscal, technological, and cultural environments. However, the efforts to modernize and adapt have likewise provided opportunities for FIEs to expand their scope of...
Topics: DTIC Archive, OFFICE OF THE DIRECTOR OF NATIONAL INTELLIGENCE WASHINGTON DC, *COUNTERINTELLIGENCE,...
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Traumatic eye injury (TEI) is one of the leading causes of monocular blindness in military personnel and young males worldwide. This profound and frequently irreversible posttraumatic loss of vision has a poor prognosis due to retinal cell death, scar formation, and lack of functional regeneration. Proliferative vitreoretinopathy (PVR), a form of intraocular fibrosis, is often the primary reason for the loss of vision after ocular trauma, and frequently occurs after blunt trauma and open globe...
Topics: DTIC Archive, BRITISH COLUMBIA UNIV VANCOUVER, *EYE, *TRAUMA, *WOUNDS AND INJURIES, ACTIVATION,...
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We provide the n-channel extension of the unified workload capacity space bounds for standard parallel processing models with minimumtime, maximum-time, and single-target self-terminating stopping rules. This extension enables powerful generalizations of this approach to multiple stopping rules and any number of channels of interest. Mapping the bounds onto the unified capacity space enables a single plot to be used to compare the capacity coefficient values to the upper and lower bounds on...
Topics: DTIC Archive, AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS...
The active region of conventional 4.5 5.0 micron-emitting QCLs is composed of quantum wells and barriers of fixed alloy composition. They suffer severe carrier leakage from the upper laser level, evidenced by low characteristic temperatures for both threshold-current density and slope efficiency over a wide range of heatsink temperatures above room temperature. To suppress carrier leakage, the energy separation between the upper laser level and the next-higher energy state, E54 (or E43) needs...
Topics: DTIC Archive, INTRABAND LLC MADISON WI, *ALLOYS, *QUANTUM WELL LASERS, BARRIERS, BURIED OBJECTS,...
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These briefing charts discuss Propulsion Efficiency and Operating Regimes for Variety of Flight Systems, Ignition, Combustion and Flame Control by Nonequilibrium Plasma, Lean Ignition for Gas IC Engines, Princeton Plasma Combustion Kinetics, Cross Sections, PAC Kinetic Mechanism, PAC Pathways, Potential Energy Curves of Molecular Hydrogen, Potential Energy Curves of Molecular Oxygen, Major Channels of Hot Atoms Production, Hexane Oxidation by Pulsed Nanosecond Discharge, Calculated and Measured...
Topics: DTIC Archive, PRINCETON UNIV NJ, *COMBUSTION, *IGNITION, *KINETICS, *PROPULSION SYSTEMS, CHANNELS,...
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Thresholds for microcavitation of bovine and porcine melanosomes were previously reported, using single nanosecond (ns) laser pulses in the visible (532 nm) and the near-infrared (NIR) from 1000 to 1319 nm. Here, we report average radiant exposure thresholds for bovine melanosome microcavitation at additional NIR wavelengths up to 1540 nm, which range from approximately 0.159 J/cm2 at 800 nm to 4.5 J/cm2 at 1540 nm. Melanosome absorption coefficients were also estimated, and decreased with...
Topics: DTIC Archive, ENGILITY CORP SAN ANTONIO TX, *LASERS,, RADIATION, REPRINTS, SAFETY, VALUE, VISIBILITY
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Summary: Control of atmospheric pressure flames with pulsed microwave energy. High efficiency coupling (50%), Small percentage of flame power (3% to 10%), Flame speed enhancement (20%), Extension of lean limit (factor of two), Distributed ignition. Development of new diagnostics, Quantitative Temperature images with Filtered Rayleigh Scattering, Measurement of NO and radicals with Radar REMPI, Imaging velocity and temperature profiles with FLEET.
Topics: DTIC Archive, PRINCETON UNIV NJ DEPT OF MECHANICAL AND AEROSPACE ENGINEERING, *EXCITATION, *FLAMES,...
Anion exchange membranes (AEM) are solid polymer electrolytes that facilitate ion transport in fuel cells. In this study, a polystyrene-b-poly(vinylbenzyl trimethylammonium) diblock copolymer was evaluated as potential AEM and compared with the equivalent homopolymer blend. The diblock had a 92% conversion of reactive sites with an IEC of 1.72 + or - 0.05 mmol g-1, while the blend had a 43% conversion for an IEC of 0.80 + or - 0.03 mmol g-1. At 50oC and 95% relative humidity, the chloride...
Topics: DTIC Archive, COLORADO SCHOOL OF MINES GOLDEN, *ION EXCHANGE, *POLYMER ELECTROLYTE FUEL CELLS,...
Defense Technical Information Archive
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Multicharged ions (MCIs) produced in a new, electron beam ion trap (EBIT) based ion source, were investigated as a means of inducing athermal surface reactions for thin film processing. The specific surface systems investigated were highly oriented pyrolytic graphite (HOPG), nanodiamond (ND) and polycarbonate (PC). Beams of oxygen (Q=3+ and 5+) and argon (Q=1+, 4+, and 8+) ions were focused at normal incidence onto these target surfaces with fluences in the range of 1012 1013 particles per...
Topics: DTIC Archive, CLEMSON UNIV SC, *ELECTRON BEAMS, *IONS, *SURFACE REACTIONS, *TRAPPING(CHARGED...
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The Naval Testing Challenge Infinity is a Big Place. Size and Complexity: The environment is harsh and boundless. There are hundreds of systems on warships. Huge state spaces and many system configurations. Risks: Lives are at stake. Participants rely on simultaneous correct execution. All systems/variants must interoperate seamlessly. Software vulnerabilities can be deliberately placed. Statistically invisible: enormous amount of room to hide back doors. Software can be compromised at runtime...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *AUTOMATION, *COMPUTER ARCHITECTURE, *COMPUTER...
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Outline of presentation. A small country perspective. The swinging pendulum: From preparedness to deployment to preparedness? or from national defence to PSOs to national defence? Transformation of Swedish defence acquisition. Reformation of Swedish defence logistics. Methodology. Priorities by the Chief of defence logistics. A tentative research agenda.
Topics: DTIC Archive, SWEDISH DEFENCE RESEARCH AGENCY STOCKHOLM, *ACQUISITION, *DEFENSE SYSTEMS, DEFENSE...
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This report explores the feasibility of an Intelligent Multi-Media Presentation (IMMP) system for human-authored content, marked up using Rhetorical Structure Theory, to support dynamic selection of the presentation content based on user needs and preferences. It describes an XML format developed to represent an IMMP presentation, and a simplified prototype system developed to dynamically select and present content at different levels of detail within a specified maximum duration. An initial...
Topics: DTIC Archive, DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION FISHERMANS BEND (AUSTRALIA) JOINT AND...
A retrospective investigation was performed to evaluate whole-genome sequencing as a benchmark for comparing molecular subtyping methods for Salmonella enterica serotype Enteritidis and survey the population structure of commonly encountered S. enterica serotype Enteritidis outbreak isolates in the United States. A total of 52 S. enterica serotype Enteritidis isolates representing 16 major outbreaks and three sporadic cases collected between 2001 and 2012 were sequenced and subjected to...
Topics: DTIC Archive, PENNSYLVANIA STATE UNIV STATE COLLEGE, *EPIDEMIOLOGY, *MICROBIOLOGY, *SALMONELLA,...
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This Technical Publication presents results that attempt to establish the fundamental relationships between rotorcraft size and handling qualities in the critical hover and low-speed flight regime. This research was conducted through a series of piloted handling qualities experiments on the NASA Ames Vertical Motion Simulator (VMS) and supported by other simulation analyses. Attitude Command-Attitude Hold (ACAH) and Translational Rate Command (TRC) control response types are systematically...
Topics: DTIC Archive, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER,...
Salmonella enterica subsp. enterica is the most common cause of bacterial foodborne illness in the United States. With Army ARO funds, we have investigated over the past three years whether polymorphic regions called CRISPR can used to differentiate strains of this pathogen for outbreak investigations. We have also been investigating whether CRISPR in Salmonella protects the bacteria against foreign DNA as described in other systems, or whether it has alternative functions. Here, we report that...
Topics: DTIC Archive, PENNSYLVANIA STATE UNIV STATE COLLEGE, *EPIDEMIOLOGY, *SALMONELLA, ANTIMICROBIAL...
The DOD has had longstanding, and documented, problems in contracting which include ethical issues, workforce competencies, lack of manpower, and fraud. DOD current remedies include rightsizing the workforce, training incentivizing performance, reaffirming ethical standards, but these are incremental solutions. What is called for is a review of contract management process capability from a broader perspective, using the Contract Management Maturity Model (CMMM). This research will focus on...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLIC POLICY,...
This project enabled the acquisition of a optical parametric amplifier operating at energies ranging from 0.75-5 eV. In addition it allowed the purchase of a CCD camera operating in the near-IR wavelength range. This equipment is being used to study carrier dynamics in graphene and other two-dimensional materials.
Topics: DTIC Archive, ARIZONA STATE UNIV TEMPE, *GRAPHENE, *PARAMETRIC AMPLIFIERS, *RAMAN SPECTROSCOPY,...
Presentation Outline. The Challenge of Design Under Uncertainty. Strategies for Considering Uncertainty: Epoch-Era Analysis (EEA), Modern Portfolio Theory (MPT). Joint EEA and MPT Method for Affordability. Case Application: Carrier Strike Group (CSG).
Topics: DTIC Archive, MASSACHUSETTS INST OF TECH CAMBRIDGE, *ACQUISITION, *AIRCRAFT CARRIERS, DESIGN...
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Instrumentation was acquired that allowed for acquisition of emission spectra with high time and wavelength resolution. The acquired instruments were fabricated into a time-resolved spectroscopy system. This system will be used to study the emission from small particles of reactive nanomaterials that are initiated by impact with a flyer plate. The emission spectra so obtained will be used to develop a fundamental understanding of how these materials are initiated by shock waves.
Topics: DTIC Archive, ILLINOIS UNIV AT URBANA-CHAMPAIGN, *EMISSION SPECTRA, *NANOMATERIALS, *SHOCK WAVES,...
We introduce a preconditioner that can be both constructed and applied using only the ability to apply the underlying operator. Such a preconditioner can be very attractive in scenarios where one has a highly e cient parallel code for applying the operator. Our method constructs a polynomial preconditioner using a nonlinear least squares (NLLS) algorithm. We show that this polynomial-based NLLS-optimized (PBNO) preconditioner signi cantly improves the performance of a discontinuous Galerkin...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF APPLIED MATHEMATICS, *EULER EQUATIONS,...
The past funding cycle of the present award has supported important advances in each of the milestones and specific tasks set forth in the original SOW. Work supported by the present award focused on three directions with the overarching goal of completing the original specific aim 2 of the application. First, we continued the preclinical characterization of Gamitrinib as a unique anticancer agent. Published in the premiere, peer-reviewed literature (JNCI, PNAS and Sci Signal), these studies...
Topics: DTIC Archive, WISTAR INST OF ANATOMY AND BIOLOGY PHILADELPHIA PA, *PHARMACOKINETICS, *PROSTATE...
The effect of cornercube retroreflector orientation on satellite laser ranging (SLR) detected photon counts is examined. It is found that a retroreflector tilt can ameliorate the effects of the satellite velocity aberration by broadening the reflected beam through diffraction. The optimal tilt angle, away from the SLR station, can be up to approximately 20:5 for the present retroreflector design. The size and direction of the tilt angle depend on the satellite velocity relative to the SLR...
Topics: DTIC Archive, DEFENCE SCIENCE AND TECHNOLOGY GROUP EDINBURGH (AUSTRALIA), *LASERS, *RANGE FINDING,...
In summary, this DOD agreement not only allowed us to perform a comprehensive study on data stream mining and its promising application on biomedical domains, but also foster and enrich the research experiences of the under-represented minority students at Xavier, and open opportunities for them in graduate schools or future careers in IT industries. Moreover, this support has motivated us to explore other important aspects of mining streaming data, such as anomaly or outlier detection, which...
Topics: DTIC Archive, XAVIER UNIV OF LOUISIANA NEW ORLEANS, *DATA MINING, BIOMEDICAL INFORMATION SYSTEMS,...
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We compare a design innovation of an elliptically framed tip-tilt optical tracker with an existing circularly framed tracker for the Navy Precision Optical Interferometer. The tracker stabilizes a 12.5 cm stellar beam on a target hundreds of meters away and requires an increase in operational frequency. We reduced mass and size by integrating an elliptical mirror as one of the rotating components, which eliminated a rotating frame. We used the same materials as the existing tracker; however,...
Topics: DTIC Archive, NAVAL OBSERVATORY FLAGSTAFF AZ, *MIRRORS, *OPTICAL INTERFEROMETERS, *STAR TRACKERS,...
Authors discuss how anion incorporation was controlled during the epitaxial growth process to develop InAs/GaInSb superlattice (SL) materials for very long wavelength infrared applications. A SL structure of 47.0 Angstrom InAs/21.5 Angstrom Ga0.75In0.25Sb was selected to create a very narrow band gap.Although a molecular beam epitaxy growth developed can produce a strain balanced ternary SL structure with a precisely controlled band gap around 50 meV, the material quality of grown SL layers is...
Topics: DTIC Archive, DAYTON UNIV RESEARCH INST OH, *EPITAXIAL GROWTH, *INFRARED DETECTION, *LONG...
Case study inverse thermal analyses of Ti-6Al-4V pulsed-mode laser welds are presented. These analyses employ a methodology that is in terms of numerical-analytical basis functions for inverse thermal analysis of steady state energy deposition in plate structures. The results of the case studies provide parametric representations of weld temperature histories that can be adopted as input data to various types of computational procedures, such as those for prediction of solid-state phase...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC, *LASER WELDING, *THERMAL ANALYSIS, *TITANIUM, CASE...
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The primary focus toward identification of Alzheimer disease (AD) risk genes over the past five years has been testing the common disease common variant (CDCV) hypothesis through the use of genome-wide association studies (GWAS) in late onset Alzheimer disease (LOAD). While common variation clearly plays a role in AD there is a growing realization that the CDCV hypothesis is unlikely to explain all the genetic effect underlying AD. One alternative hypothesis invokes multiple rare variants (RV)...
Topics: DTIC Archive, MIAMI UNIV FL, *ALZHEIMER DISEASE, *GENETICS, BRAIN, CELLS(BIOLOGY), CLINICAL...
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MIT Lincoln Laboratory is a Department of Defense (DoD) federally funded research and development center working on problems critical to national security. The Laboratory s core competencies are in sensors, information extraction (signal processing and embedded computing), communications, cyber security, integrated sensing, and decision support. Technology development is geared to the Laboratory s primary mission areas space control; air and missile defense; communication systems; intelligence,...
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Network intrusion detection systems (IDS) are powerful network defense tools that monitor network traffic in real time and generate alarms based on known signatures; however, the increasing complexity of cyber threats (e.g., advanced malware), distributed denial-of-service attacks, and session-hijacking have produced large alarm sets. Analysts may miss an alarm or a mission-critical system may become compromised due to the amount of data required for processing. This information overload often...
Topics: DTIC Archive, SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA, *INTRUSION...
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Topics: DTIC Archive, AIR FORCE SPACE COMMAND LOS ANGELES AFB CA SPACE AND MISSILE SYSTEMS CENTER, *GLOBAL...
The reliability modeling of a module in a turbine engine requires knowledge of its failure rate, which can be estimated by identifying statistical distributions describing the percentage of failure per component within the turbine module. The correct definition of the failure statistical behavior per component is highly dependent on the engineer skills and may present significant discrepancies with respect to the historical data. There is no formal methodology to approach this problem and a...
Topics: DTIC Archive, TEXAS UNIV AT SAN ANTONIO, *FAILURE(MECHANICS), *GAS TURBINES, COMPUTERIZED...
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In this application, we propose to build upon our current work to determine the association between fatty acid synthase (FAS) overexpression and intraprostatic fat as measured by in-vivo imaging using proton magnetic resonance spectroscopy imaging in the prediction of prostate disease aggressiveness. Mechanisms linking fatty acid synthase overexpression, lipid accumulation, lipid oxidation, and tumor aggressiveness will be explored using metabolomics. Employing a cross-sectional design we will...
Topics: DTIC Archive, OREGON HEALTH AND SCIENCES UNIV PORTLAND, *PROSTATE CANCER, FATTY ACIDS, IMAGES,...
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Communication enhancement devices were designed for those who want to maintain natural hearing while protecting their ears from impulse and continuous noises like gunfire, explosions, vehicles, and machinery. There were potential advantages for this technology in military applications, provided an accurate and complete assessment of the performance had been obtained. The OTTO Hurricane with Invisio V60 and Sonic Defenders EP4 earplugs were assessed for: continuous noise attenuation, sound...
Topics: DTIC Archive, AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE,...
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We are developing Setaria viridis as a C4 model to accelerate metabolic engineering of key C4 crop species. A genome scale metabolic reconstruction was produced using our C4GEM framework. The reconstruction accounted for 1230 genes and 1588 reactions. The reconstruction was used to guide the comparison of transcriptome proteome and central metabolome in mature and immature tissue. Preliminary data were obtained suggesting successful agrobacterium mediated transformation
Topics: DTIC Archive, ASIAN OFFICE OF AIR FORCE AEROSPACE RESEARCH AND DEVELOPMENT TOKYO (JAPAN),...
Background: Exposure to dichlorvos DDVP), an organophosphorus pesticide, is known to result in neurotoxicity as well as other metabolic perturbations. However, the molecular causes of DDVP toxicity are poorly understood, especially in cells other than neurons and muscle cells. To obtain a better understanding of the process of non-neuronal DDVP toxicity, we exposed zebrafish to different concentrations of DDVP, and investigated the resulting changes in liver histology and gene transcription....
Topics: DTIC Archive, ARMY CENTER FOR ENVIRONMENTAL HEALTH RESEARCH FORT DETRICK MD, *FISHES, *ORGANIC...
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Resilient communications are critically important in the event of a national security crisis or disaster. In the event of a significant threat to public safety, communications for national security and emergency preparedness must continue to provide an acceptable level of service for senior leader decision makers and first responders. If primary communications are lost, then resiliency is the ability for rapid and effective reconstitution or utilization of alternate means. This paper introduces...
Topics: DTIC Archive, INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA, *COMMUNICATIONS NETWORKS, *EMERGENCIES,...