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Defense Technical Information Archive

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



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Defense Technical Information Archive
Dec 10, 2021 Defense Technical Information Center
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This paper investigates the applicability of high order statistical autoregressive (AR-HOS) modeling method in analyzing biomedical signals. The autoregressive (AR) method using linear prediction and AR-HOS method using cumulants are applied on normal and pathological heart sound signals. It is found that the AR-HOS modeling a signal produce more accurate and higher resolution spectrum than AR modeling.
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Topics: DTIC Archive, Ergen, Burhan, FIRAT UNIV ELAZIG (TURKEY) DEPT OF COMPUTER ENGINEERING, *SIGNAL...
Defense Technical Information Archive
Dec 2, 2021 Defense Technical Information Center
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This report is to serve as a user's guide to accompany software Version 3.1 for the Subjective Workload Assessment Technique (SWAT), a tool for measuring mental workload. The guide has been developed as a how-to manual for implementing SWAT. Specifically, this report begins with a general overview of workload, describes in detail all aspects of the scale development phase, provides general information relating to the event scoring phase, and development phase, provides general information...
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Topics: DTIC Archive, Potter, Scott S, SYSTEMS RESEARCH LABS INC DAYTON OH, *COMPUTER PROGRAMS, *USER...
Defense Technical Information Archive
Sep 25, 2021 Defense Technical Information Center
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The air attack that killed al Qaeda leader Abu Musab al-Zarqawi -- the successful synchronization of actionable intelligence and tactical military operations that eliminated a key terrorist network node -- was a good thing. Much of the media-pundit and popular analysis that followed has focused on the potential impact of al-Zarqawi's death on the outcome of the war in Iraq. The demand of the American public for information and results notwithstanding, the emphasis on outcome is not the right...
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Topics: DTIC Archive, Reed, Donald J, NORTHERN COMMAND PETERSON AFB CO, *IRAQI WAR, *STRATEGY,...
Defense Technical Information Archive
Sep 24, 2021 Defense Technical Information Center
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Although they worked together nominally, the central Al Qaeda network, as led by Osama bin Laden and Ayman al-Zawahiri, and the late Abu Musab al-Zarqawi's terrorist group in Iraq held vastly different conceptions of jihad. The U.S. invasion and occupation of Iraq minimized the magnitude of that ideological clash, enabling Zarqawi's limited cooperation with Al Qaeda in the Iraqi arena. Although they used each other for tactical support, publicity, and recruiting purposes, their doctrinal...
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Topics: DTIC Archive, Fishman, Brian, MILITARY ACADEMY WEST POINT NY COMBATING TERRORISM CENTER,...
Defense Technical Information Archive
Sep 7, 2021 Defense Technical Information Center
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The objective of this paper is to compare the Santaria Cult and Satanism.
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Topics: DTIC Archive, Kent, Barbara, LONG ISLAND UNIV GREENVALE NY, *RELIGION, COMPARISON, CULTURE,...
The Maoist Revolutionary model provides a template of a successful revolution. Both the Taliban and the Chinese underwent similar circumstances. Both movements formed as a result of failed states seeking ways to restore unity and order within their environments. The purpose of this thesis is to use the Maoist revolutionary model to gain insights in vulnerabilities within the current Taliban strategy. First, the thesis examines the history behind both movements to determine if there are any...
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Topics: DTIC Archive, ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS, *GUERRILLA WARFARE,...
Defense Technical Information Archive
Jul 27, 2021 Defense Technical Information Center
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The United States is engaged in a long war against terror as a top national security priority. While initial response to the unexpected on September 2001 (9/11), terror attacks was clearly unfunded, the U.S. is still using emergency appropriations to fund ongoing operations as well as other non-emergency defense requirements. Since 2001 over $500B has been infused into defense programs and operations through supplemental appropriations, separate from funds provided through DOD's comprehensive...
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Topics: DTIC Archive, Atkins, Denise, ARMY WAR COLL CARLISLE BARRACKS PA, *IMPACT, *ALLOCATIONS, *RESOURCE...
Defense Technical Information Archive
Jun 2, 2021 Defense Technical Information Center
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China's export boom has surged Chinese share in the global export market and has created general concern as to the threat China poses to both U.S. economic dominance and to the developing economies directly competing with Chinese manufacturing. The recent focus of Chinese investment in Mexican manufacturing has generated considerable press and commentary about the danger of Chinese influence in the very backyard of the United States. Concentrating on the maquiladora sector, this paper examines...
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Topics: DTIC Archive, NAVAL WAR COLL NEWPORT RI JOINT MILITARY OPERATIONS DEPT, *CHINA, *INTERNATIONAL...
Defense Technical Information Archive
May 18, 2021 Defense Technical Information Center
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This thesis examines the origins of the conflict which engulfed the former Yugoslavia in 1991. Findings will indicate that the violence within this culturally diverse and historically multi-ethnic region of Europe was not driven by ancient ethnic sentiments, nor was it a 'civil war' between 'traditional tribal rivals' --fighting for 'hundreds of years'--; but was rather the direct result of a within-group (intra-state/inter-cultural) political struggle. The study will demonstrate that the...
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Topics: DTIC Archive, Patten, John F., II, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *POLITICAL SCIENCE,...
Contents: Introduction, survey of the literature, and statement of the problem; Materials and methods; Ecology, developmental cycle, larval biology; Sexual biology (Sensory physiology, sexual behavior); Supplementary observations.
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Topics: DTIC Archive, Schwalb, Hans Helmut, ARMY BIOLOGICAL LABS FREDERICK MD, *COLEOPTERA, BIOLOGY,...
Defense Technical Information Archive
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Quick dissemination of information about new vulnerabilities and attacks is essential to time-critical handling of threats in information security, but little systematic tracking has been done of it. We are developing data mining techniques to track the flow of such information by comparing important information-security Web sites, alert messages, and strings in packets to find similar words and sentences. We report on tools we have developed to collect relevant sentences, with a particular...
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Topics: DTIC Archive, Rowe, Neil C, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *VULNERABILITY, *CYBERTERRORISM,...
Defense Technical Information Archive
Jan 1, 2021 Defense Technical Information Center
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This paper involves an in-depth study of the art of command at all three levels of warfare. It examines this art through the eyes of one of Napoleon's Marshals, Louis N. Davout. The paper addresses and accomplishes three primary goals. First, it defines act of command and shows its relevance to modern day warfare. Second, the paper shows that Marshal Davout was the best of Napoleon's generals and had an art of command that rivaled the Emperor himself. Finally, the paper demonstrates how Davout...
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Topics: DTIC Archive, Keefe, John M, ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS, *MILITARY...
Defense Technical Information Archive
Dec 11, 2020 Defense Technical Information Center
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The Engineering Design Handbook Series of the US Army Materiel Command is a coordinated series of handbooks containing basic information and fundamental data useful in the design and development of Army materiel and systems. The handbooks are authoritative reference books of practical information and quantitative facts presented to be helpful in the design and development of materiel that will meet the technical needs of the Armed Forces. The Military Vehicle Power Plant Cooling Handbook is...
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Topics: DTIC Archive, ARMY MATERIEL COMMAND ALEXANDRIA VA, *ENGINE COMPONENTS, *MILITARY VEHICLES,...
Defense Technical Information Archive
Dec 6, 2020 Defense Technical Information Center
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For this paper I thought it would be interesting to investigate the personality of one of history's greatest battlefield surgeons, Baron Dominique-Jean Larrey who served as Napoleon's Surgeon-in-Chief throughout the rise and fall of Napoleon's Empire. While researching for an in-class presentation about the devastating toll diseases such as typhus and dysentery had on Napoleon's Grand Arme, a theme kept presenting itself when reading about the accounts of Dr. Larrey. The writings of...
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Topics: DTIC Archive, AIR COMMAND AND STAFF COLL MAXWELL AFB AL, *BEHAVIOR, *MILITARY SURGEONS,...
Defense Technical Information Archive
Nov 29, 2020 Defense Technical Information Center
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Topics: DTIC Archive, AIR FORCE OFFICE OF SCIENTIFIC RESEARCH ARLINGTON VA, *ORGANIC MATERIALS, *POLYMERS,...
SrTiO3 and LaAlO3 was made possible by advances in atomic layer controlled growth. These advances have led to the creation of atomically-abrupt interfaces between novel complex oxide materials. It has been demonstrated that the conducting layer can be localized within a few nm of the interface, and that the carrier concentration can be altered with an electric field and/or lattice strain. We have created a strong interdisciplinary collaboration with the expertise in US and Korea required to...
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Topics: DTIC Archive, WISCONSIN UNIV MADISON, *CHARGE DENSITY, *ELECTRON BEAMS, *ELECTRON GAS, CHARGE...
Military and other government organizations put substantial effort into detecting and thwarting attacks such as those by suicide bombers or involving improvised explosive devices. Such attacks may be against military or government installations in the United States or abroad, civilian infrastructure, or any of many other targets. An element of thwarting such attacks is observing suspicious individuals over time with such diverse means as cameras, scanners, and other devices; travel records;...
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Topics: DTIC Archive, Davis,Paul K, RAND National Defense Research Institute Santa Monica United States,...
Defense Technical Information Archive
May 7, 2020 Defense Technical Information Center
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These Proceedings include the papers and discussions presented at the AGARD Electromagnetic Wave Propagation Panel Symposium on 'Medium, Long and Very Long Wave Propagation (at Frequencies less than 3000 kHz)' held in Brussels, Belgium in September 1981. The Meeting reviewed propagation information at ELF and VLF frequencies. It was intended to summarize the current state of knowledge in this frequency band in the areas of propagation, antennas, and radio communications technology, with...
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Topics: DTIC Archive, Belrose, J. S., ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT...
The assassination of the Austro-Hungarian Archduke Franz Ferdinand and his wife Sophia in Sarajevo in 1914 is remembered as the event which sparked the First World War, yet it came at a time when other assassinations of political leaders, such as US President William McKinley, did not produce such a devastating result. The difference lies in the context in which the assassination occurred. The Sarajevo assassination was conducted by revolutionaries from within Austria-Hungary but masterminded...
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Topics: DTIC Archive, Hjembo,Karl T, Air Command and Staff College Maxwell Air Force Base United States,...
Defense Technical Information Archive
Apr 17, 2020 Defense Technical Information Center
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The National Strategy for Pandemic Influenza notes that pandemic flu could overwhelm the heath and medical capabilities of the United States, cause hundreds of thousands of deaths, millions of hospitalizations, and cost hundreds of billions of dollars. The consensus within scientific circles is that the nation will likely face one or more pandemics in this century, although there is disagreement as to the probable timing of such an event. Studying the 1918 pandemic will assist modern day...
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Topics: DTIC Archive, Kirkland, Stephen M, ARMY WAR COLL CARLISLE BARRACKS PA, *PLANNING, *INFLUENZA,...
Defense Technical Information Archive
Feb 25, 2020 Defense Technical Information Center
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This document presents human factors issues that should be considered in the design and evaluation of air traffic control (ATC) systems and subsystems. The checklist is a companion document to Human Factors in the Design and Evaluation of Air Traffic Control Systems. The goal of this checklist is to point air traffic controllers and other operations specialists to questions that they may wish to consider in their evaluation of new systems or subsystems, or a new component of an existing system....
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Topics: DTIC Archive, Cardosi, Kim M, JOHN A VOLPE NATIONAL TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MA,...
Defense Technical Information Archive
Sep 24, 2019 Defense Technical Information Center
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Many scholars and writers state that the surprise the Japanese achieved in their attack on Pearl Harbor resulted from a failure of the U.S. intelligence community to provide adequate, accurate information to government and military decision-makers. These historians presume the intelligence community possessed critical information that was misinterpreted or not appropriately disseminated prior to the attack. Some revisionist historians also subscribe to conspiracy theories and believe that key...
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Topics: DTIC Archive, Piacine, Robert F, AIR WAR COLL MAXWELL AFB AL, *INTELLIGENCE, *PEARL HARBOR, LESSONS...
Defense Technical Information Archive
Aug 28, 2019 Defense Technical Information Center
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The United States (US) national interest in the Middle East has grown more complex over the years, but fundamental concerns regarding oil protection and availability remain a central theme. U.S. dependency on Middle Eastern oil to meet ever-increasing energy consumption demands have returned to the levels found just prior to the 1978-1980 oil crisis. Current Middle Eastern instability and the rise of the al-Qaeda insurgency revive questions regarding the ability of the United States to weather...
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Topics: DTIC Archive, Holzman, Simon L, ARMY WAR COLL CARLISLE BARRACKS PA, *MIDDLE EAST, *ENERGY...
This report summarizes the results of an Electronics Principles survey of Missile Maintenance personnel assigned overseas and supplements the EPI report for the Missile Maintenance career ladder (AFPT 90-316-222, dated 5 November 1976) which was restricted to a selected sample of CONUS personnel. This report gives a detailed listing of the technical tasks and knowledge needed to perform the jobs within the specialty or career ladder. This specialty has the following functions: Performs...
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Topics: DTIC Archive, O'Connor,Thomas J, AIR FORCE OCCUPATIONAL MEASUREMENT CENTER LACKLAND AFB TEX,...
Defense Technical Information Archive
Jun 27, 2019 Defense Technical Information Center
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We show that the acoustic branches calculated by our helical lattice dynamics calculations can match the observed inelastic neutron scattering results. The fit in the neutron sub Terrahertz region is consistent with our fit to Brillouin results in the Gegahertz region when the frequency dependence of the dielectric constant of water is taken into account.
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Topics: DTIC Archive, Prabhu, V V, PURDUE UNIV LAFAYETTE IND DEPT OF PHYSICS, *LATTICE DYNAMICS,...
Defense Technical Information Archive
Jun 22, 2019 Defense Technical Information Center
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The recent broad political rapprochement between the United States and the nations of the Former Soviet Union (FSU) has transformed the environment for cooperation on space projects, and led to cooperative programs in space with Russia and other FSU states that would have been unimaginable just a few years ago. Chief among these are the high-profile human spaceflight cooperative activities involving the Space Shuttle-Space Station Mir dockings and the International Space Station. This report...
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Topics: DTIC Archive, OFFICE OF TECHNOLOGY ASSESSMENT WASHINGTON DC, *USSR, *UNITED STATES, *SPACE...
Defense Technical Information Archive
Jun 21, 2019 Defense Technical Information Center
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Beyond Horizons: A Half Century of Air Force Space Leadership is a study of the United States Air Force in space. Of all the military services, the Air Force has been preeminently involved for the past fifty years in initiating, developing, and applying the technology of space-based systems in support of the nation's national security. Yet there has been no single-volume overview of the Air Force space story to serve as an introduction and guide for interested readers. In November 1992, a...
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Topics: DTIC Archive, Spires, David N., SPACE COMMAND PETERSON AFB CO, *AIR FORCE, *LEADERSHIP, *SPACE...
Defense Technical Information Archive
May 23, 2019 Defense Technical Information Center
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Air Force Space Command (AFSPC) is at a unique point in its history. AFSPC is providing military-focused space capabilities with a global perspective to the Joint warfighting team, while taking the USAF lead role in developing cyberspace capabilities, and establishing a new operational cyberspace Numbered Air Force (NAF). Additionally, AFSPC is restoring credibility and confidence in the US nuclear ICBM deterrent force while preparing to move the force to Air Force Global Strike Command...
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Topics: DTIC Archive, AIR FORCE SPACE COMMAND PETERSON AFB CO, *SPACE BASED, *SPACE SYSTEMS, *AIR FORCE...
Defense Technical Information Archive
Dec 27, 2018 Defense Technical Information Center
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In response to many inquiries from users of the Thesaurus of ASTIA descriptors and from others interested in the use of controlled vocabularies for mechanized information retrieval, this paper is offered as an outline of the general plan to be followed in the preparation of a Second Edition of the ASTIA Thesaurus. The philosophies of the descriptor and thesaurus approaches to information retrieval are discussed, with particular emphasis on the relationships among descriptors. Although this...
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Topics: DTIC Archive, DEFENSE DOCUMENTATION CENTER ALEXANDRIA VA, *DEPARTMENT OF DEFENSE, *INFORMATION...
Defense Technical Information Archive
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This dissertation examines firm legitimacy at the time of a firm's initial public stock offering (IPO) and its impact on the quantity and quality of cooperative agreements post-IPO. Firm legitimacy is operationalized at the time of IPO as a combination of total firm value, number of employees, firm age, market-to-book ratio, and percentage of ownership maintained by the original owners. The dissertation finds that firm value, market-to-book ratio, and firm age are positively related to an...
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Topics: DTIC Archive, Reed, Timothy S, AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH, *ACQUISITION,...
The city of Freeport has prepared this Environmental Assessment (EA) to analyze the potential environmental effects associated with the construction of a 7.5-mile water main pipeline along the north right-of-way of Florida State Road (SR) 20 from Portland, Florida, to Choctaw Beach, Florida, an area approximately 25 miles east of the main cantonment part of Eglin Air Force Base. Once established, the pipeline would extend services to communities bound by the Eglin Reservation boundary and/or...
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Topics: DTIC Archive, SCIENCE APPLICATIONS INTERNATIONAL CORP SHALIMAR FL, *AIR FORCE FACILITIES,...
Defense Technical Information Archive
Nov 13, 2018 Defense Technical Information Center
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Silicon photodiodes offer a number of advantages over conventional photocathode type soft x-ray detectors in pulsed power experiments. These include a nominally flat response, insensitivity to surface contamination, low voltage biasing requirements, sensitivity to low energy photons, excellent detector to detector response reproducibility, and ability to operate in poor vacuum or gas backfilled experiments. Silicon photodiodes available from International Radiation Detectors (IRD), Torrance,...
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Topics: DTIC Archive, LOS ALAMOS NATIONAL LAB NM, *PHOTODIODES, *SOFT X RAYS, DETECTORS, LINEARITY, SILICON
Defense Technical Information Archive
Nov 10, 2018 Defense Technical Information Center
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Topics: DTIC Archive, Schramm, Wilbur, Katz, Daniel, Kendall, Willmoore, Vallance, Theodore, RESEARCH...
Defense Technical Information Archive
Jul 7, 2018 Defense Technical Information Center
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Software project management encompasses the knowledge, techniques, and tools necessary to manage the development of software products. This curriculum module discusses material that managers need to create a plan for software development, using effective estimation of size and effort, and to execute that plan with attention to productivity and quality. Within this context, topics such as risk management, alternative life cycle models, development team organization, and management of technical...
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Topics: DTIC Archive, Tomayko, James E, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST,...
The action of nitric acid or N02/N204 mixture on (3,3-(PPh3)2-3-H-3,1,2-RhC2B9H11) affords the nitratorhodacarborane (3-(PPh )-3,3-(N03)-3,1,2-RhC2B9H11) (I) whose structure has been determined by X-ray crystallography, triclinic, space group Pl, a= 12.592(5), b = 16.382(8), c = 17.059(6) degrees A, alpha = 75.74(4) (0) degrees, Beta = 105.34(3) (0) degrees, Gamma = 120.05(3) (0) degrees, Zeta = 2. The latter species has been shown to be a useful precursor in the synthesis of other...
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Topics: DTIC Archive, Demidowicz,Zenon, CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY,...
Defense Technical Information Archive
Mar 24, 2018 Defense Technical Information Center
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Development of a free piston engine linear generator was investigated for use as an auxiliary power unit for a hybrid electric vehicle. The main focus of the program was to develop an efficient linear generator concept to convert the piston motion directly into electrical power. Computer modeling techniques were used to evaluate five different designs for linear generators. These designs included permanent magnet generators, reluctance generators, linear DC generators, and two and three-coil...
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Topics: DTIC Archive, Callahan, T. J., SOUTHWEST RESEARCH INST SAN ANTONIO TX TARDEC FUELS AND LUBRICANTS...
Defense Technical Information Archive
Feb 23, 2018 Defense Technical Information Center
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The concept of the factors of structural safety presently applied to the design of fixed-wing aircraft can be traced back some 50 years. The last decades have brought about rapid progress in establishing aerodynamic derivatives, defining load conditions and predicting structural loads as well as enabling more detailed analyses for stress and deformation to be made. The lack of a rational basis for the factors of safety together with the progress made brought about a discussion of changing the...
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Topics: DTIC Archive, ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE),...
Defense Technical Information Archive
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Topics: DTIC Archive, Shutov,M D, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *Atmospheric chemistry,...
Defense Technical Information Archive
Dec 16, 2017 Defense Technical Information Center
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This report presents the 9433 Despin Control anomaly investigations, resulting conclusions and recommendations. General recommendations are identified in two categories; design changes and process changes. First category includes a retainer design, increase of DEA current limit to increase motor capability of DMA. Secondary design considerations are positive lubrication system, a flexure payload mechanism for the bearing race and a controller rate loop redesign to make the system insensitive to...
( 1 reviews )
Topics: DTIC Archive, Wheeler,P C, TRW DEFENSE AND SPACE SYSTEMS GROUP REDONDO BEACH CA, *ANOMALIES,...
Defense Technical Information Archive
Nov 10, 2017 Defense Technical Information Center
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Topics: DTIC Archive, BELL AEROSPACE CO BUFFALO NY, *GUIDED MISSILES
Defense Technical Information Archive
Sep 5, 2017 Defense Technical Information Center
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The report is a final summary of investigations involving preliminary design and study of task capabilities of a flippable barge employed in support of ocean engineering missions. The craft resembles a large ocean going barge with tanks and piping arranged such that one end can be flooded and the vehicle rotated into a vertical position. In this attitude it would be a deep draft work platform with stability comparable to FLIP but with much larger payload, allowing performance of much more...
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Topics: DTIC Archive, May, A. E., Tomooka, L. S., SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA ADVANCED...
Defense Technical Information Archive
Dec 26, 2016 Defense Technical Information Center
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The Navy Clothing and Textile Research Facility (NCTRF) conducted a field evaluation study of a knit watch cap made of 100% wool and with a process representative of many hat manufacturers throughout the related specialty knitting trade to determine its feasibility for possible adoption by the Navy. This study was necessitated because one manufacturer has made the standard knit watch cap the past 5 years, resulting in a continually escalating cost per unit. The proposed knit watch cap was found...
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Topics: DTIC Archive, Pine, Manuel W, NAVY CLOTHING AND TEXTILE RESEARCH FACILITY NATICK MA, *HEADGEAR,...
Defense Technical Information Archive
Oct 3, 2016 Defense Technical Information Center
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Topics: DTIC Archive, Infosino, Charles, BALLISTIC MISSILE DEFENSE ORGANIZATION WASHINGTON DC, *ANTIMISSILE...
Defense Technical Information Archive
Oct 3, 2016 Defense Technical Information Center
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The fundamental ideas and the basic mathematics of the most common missile guidance laws are outlined. Rules of thumb for the required lateral acceleration for the different guidance laws are given. A brief summary of flight mechanics is given. The pitch axis control is treated and the dynamic properties are identified. Design of the autopilot for the inner loop using modem methods of controller design is briefly outlined.
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Topics: DTIC Archive, Berglund, Erik, SWEDISH DEFENCE RESEARCH AGENCY STOCKHOLM, *GUIDED MISSILES,...
Defense Technical Information Archive
Oct 1, 2016 Defense Technical Information Center
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This report describes an algorithm for estimating target velocity and acceleration using radar and inertial sensor measurements as inputs. In order to determine the accuracy and benefits of such an estimator, the algorithm is incorporated into a missile guidance law. Through the use of a simulation, terminal miss distances are compared with a similar missile using proportional navigation. Simulation results indicate a reduction in miss distance when such an estimate is used because of the...
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Topics: DTIC Archive, Bednar, Richard A., NAVAL WEAPONS CENTER CHINA LAKE CA, *TERMINAL GUIDANCE,...
Defense Technical Information Archive
Sep 14, 2016 Defense Technical Information Center
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The object of this investigation was to determine, by wound ballistics tests, the most efficient bullet of a series of .22 caliber full patch rounds.
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Topics: DTIC Archive, Dziemian, Arthurt J, CHEMICAL CORPS MEDICAL LABS ARMY CHEMICAL CENTER MD, *BULLET...
Defense Technical Information Archive
Aug 12, 2016 Defense Technical Information Center
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Topics: DTIC Archive, ARMY BIOLOGICAL LABS FREDERICK MD, *JET FIGHTERS, *AIRCRAFT GUNS, WEAPONS, GUNS.
Defense Technical Information Archive
Jul 18, 2016 Defense Technical Information Center
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The report is based on the campaign of the winter of 1950-51 in which the 9th Army experienced its greatest and most prolonged stress. It is divided into 3 parts; the behavior of men in the use of weapons, the behavior of weapons as men use them, and the use of information in augmenting fighting power.
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Topics: DTIC Archive, MARSHALL, S.L., RESEARCH ANALYSIS CORP MCLEAN VA, *KOREAN WAR, WEAPONS, INFANTRY,...
Advances in autonomy have made it possible to invert the operator-to-vehicle ratio so that a single operator can control multiple heterogeneous Unmanned Vehicles (UVs). This autonomy will reduce the need for the operator to manually control each vehicle, enabling the operator to focus on higher-level goal setting and decision-making. Computer optimization algorithms that can be used in UV path-planning and task allocation usually have an a priori coded objective function that only takes into...
Topics: DTIC Archive, MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF AERONAUTICS AND ASTRONAUTICS, *MAN...
Topic: DTIC Archive
Defense Technical Information Archive
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Realistic dynamic systems are often strongly nonlinear, particularly those for the ocean and atmosphere. Applying variational data assimilation to these systems requires the linearization of the nonlinear dynamics about a background state for the cost function minimization, except when the gradient of the cost function can be analytically or explicitly computed. Although there is no unique choice of linearization, the tangent linearization is to be preferred if it can be proven to be...
Topics: DTIC Archive, NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV, *MATHEMATICAL MODELS,...
Defense Technical Information Archive
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To understand and exploit the resonance scattering by swimbladder-bearing fish (typically in the 1-10 kHz frequency region). Exploitation of the resonances can significantly reduce ambiguities in interpreting acoustic scattering in terms of meaningful biological parameters compared with traditional higher frequency approaches. To conduct a new class of quantitative acoustic studies of scattering by swimbladder-bearing fish utilizing new commercial broadband-acoustic technology that is optimized...
Topics: DTIC Archive, WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF APPLIED OCEAN PHYSICS AND...
A phylogeny was reconstructed for four species belonging to the Neotropical Anopheles (Nyssorhynchus) albitarsis complex using partial sequences from the mitochondrial cytochrome oxidase I (COI) and NADH dehydrogenase 4 (ND4) genes and the ribosomal DNA ITS2 and D2 expansion region of the 28S subunit. The basis for initial characterization of each member of the complex was by correlated random amplification of polymorphic DNA polymerase chain reaction (HAPD-PCR) markers. Analyses were carried...
Topics: DTIC Archive, WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DEPT OF ENTOMOLOGY, *GENES,...
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This paper presents a model and language constructs for expressing timing and concurrency requirements in distributed real-time programs. Our approach combines an abstract data type paradigm for the specification of shared resources and a distributed transaction-based paradigm for the specification of application processes. Resources provide abstract views of shared system entities, such as devices and data structures. Each resource has a state and defines a set of actions that can be invoked...
Topics: DTIC Archive, PENNSYLVANIA UNIV PHILADELPHIA DEPT OF COMPUTER AND INFORMATION SCIENCE, *REAL TIME,...
The long term goal of this research is twofold: (1) develop an advanced multi-physics, multi-scale model with a multi-numerical solution techniques approach to predict nonlinear dynamic behavior of surface and sea-bottom impact, and subsequent burial and flow-induced motion of flexible structures and surrounding sediments in the marine environment; and (2) calibrate resulting models with experimental and field measurements. The predictive capabilities developed in this research will be...
Topics: DTIC Archive, OREGON STATE UNIV CORVALIS OR DEPT OF CIVIL CONSTRUCTION AND ENVIRONMENTAL...
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This paper introduces the technique of anchor modeling in the applications of speaker detection and speaker indexing. The anchor modeling algorithm is refined by pruning the number of models needed. The system is applied to the speaker detection problem where its performance is shown to fall short of the state-of-the-art Gaussian Mixture Model with Universal Background Model (GMM-UBM) system. However, it is further shown that its computational efficiency lends itself to speaker indexing for...
Topics: DTIC Archive, MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB, *INDEXES, *RECOGNITION, *SPEECH,...
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Even though Congress repealed statutes from 1948 that excluded women from serving in combat, the Secretary of Defense's combat exclusion policy restricts the use of women in the military. Commanders are at risk of violating this policy as they assign women to areas of responsibility in Iraq and Afghanistan. With 15% of the US military comprised of women - and given the current operational and personnel tempos ? it is imperative for commanders to have policies that allow maximum effective...
Topics: DTIC Archive, ARMY WAR COLL CARLISLE BARRACKS PA, *WARFARE, *WOMEN, *MILITARY COMMANDERS,...
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Topics: DTIC Archive, MURCRAY,DAVID G., DENVER RESEARCH INST COLO, *INFRARED RADIATION, *METEOROLOGICAL...
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Why does DoD fund Basic Research? -Generates discoveries, new knowledge, and improved understanding; -Achieves technological superiority; -Prevent technological surprise; -Educates scientists and engineers in physical science disciplines; -Ensures that scientific expertise and engineering rigor supports DoD technical decisions; -Sustains the human talent and research infrastructure.
Topics: DTIC Archive, OFFICE OF THE DIRECTOR OF DEFENSE RESEARCH AND ENGINEERING WASHINGTON DC, *DEPARTMENT...
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The development of mobile ad hoc networking (MANET) technology for DoD use presents formidable challenges. The Naval Research Laboratory (NRL) has been a technology leader in the conception, development, and standardization of MANET technologies. MANET technology is evolving and will allow future DoD network systems to self-organize and operate more autonomously without reliance upon a fixed infrastructure. Despite recent advances in this technology, there remains little work in adapting or...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC INFORMATION TECHNOLOGY DIV, *COMMUNICATIONS...
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This study explores hegemonic transition from the point of view of Brazil, Russia, and India. Using Power Transition and Hegemonic Stability Theories, it assumes that international system will rather peacefully transition to a new bipolarity between the United States and China. It examines each nation in turn from economic, military, and diplomatic power perspectives and their bilateral relations with the U.S. and China. It then predicts the implications of this new bipolarity. The greatest...
Topics: DTIC Archive, AIR UNIV MAXWELL AFB AL SCHOOL OF ADVANCED AIR AND SPACE STUDIES, *INTERNATIONAL...
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Topics: DTIC Archive, BROWN,CHARLES R., ELECTRONIC SYSTEMS DIV L G HANSCOM FIELD MASS, *LABORATORY...
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From roughly 1975 to 2005, the U.S. focused on achieving high intensity, decisive victory in a major theater war. Shifting force structure and culture to address the requirements of irregular warfare in Iraq and Afghanistan has been a costly, difficult, and necessary task. But the effort has revived timely questions about how American forces must prepare for the broad range of missions future contingencies will require. Analysts should perhaps be wary of a taking an exclusive approach. The...
Topics: DTIC Archive, NATIONAL DEFENSE UNIV WASHINGTON DC CENTER FOR TECHNOLOGY AND NATIONAL SECURITY...
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A health sciences university fulfills many roles: a citadel of knowledge, core of innovation and center of compassion. At the Uniformed Services University of the Health Sciences (USU), these roles thrive through the careful nurturing of a collaborative environment that stretches across the street and around the world. Our mission is to create an academic center of excellence where students, faculty and staff are challenged to do their best. Our students learn the art and science of military...
Topics: DTIC Archive, *HEALTH, *MILITARY MEDICINE, LIFE SAVING, BRAIN DAMAGE, GENETIC DISEASES, TRAUMA
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The purpose of this paper is to answer the following question: Will US national defense be better served if the Army National Guard (NG) surrenders its unique and historical culture and instead, fully adopts the culture of the active Army? The proposals before Congress recommended by the Commission on the National Guard and Reserves suggest culture sharing is in the best interest of the army. Consequently, this paper explores whether the convergence of the NG and Army Active Component (AC)...
Topics: DTIC Archive, ARMY WAR COLL CARLISLE BARRACKS PA, *NATIONAL GUARD, COMMUNITIES, HOMELAND DEFENSE,...
Targeted therapy has proven to be an effective strategy in the treatment of breast cancer. An example of successful targeted therapy is trastuzumab, a humanized monoclonal antibody binds to the extracellular domain of HER2, a receptor which is overexpressed in many breast cancers. The goal of my project is to identify molecular targets for conjunctive therapy that will increase efficacy of trastuzumab therapy. To identify molecular targets necessary for breast cancer cell survival in the...
Topics: DTIC Archive, TEXAS UNIV AT DALLAS SOUTHWESTERN MEDICAL CENTER, *BREAST CANCER, *RIBONUCLEIC ACIDS,...
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An ultra low power 180-degree, 1-bit phase shifter has been designed using Agilent's Advanced Design Software (ADS) co-simulation. Silicon-on-Insulator (SOI). MOSFETs were used as the switching elements because of their low current draw and low capacitance. A 1-bit 0, 180-degree phase shift has been realized with only two MOSFETs, simplifying manufacture and decreasing power.
Topics: DTIC Archive, SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA, *PHASE SHIFT CIRCUITS, FIELD...
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As a result of past operations, the U.S. Amy has numerous buildings and large quantities of process equipment that are contaminated with explosives. Recent changes in laws also require all detonation scrap to be free of explosive residue prior to recycle. Before these materials can be recycled or disposed of, the residual explosives must be removed. Removal of residual explosives is necessary to avoid creating safety and environmental hazards. If the process equipment is to be land filled,...
Topics: DTIC Archive, ARMY TOXIC AND HAZARDOUS MATERIALS AGENCY ABERDEEN PROVING GROUND MD, *CHEMICAL...
Underground imaging of dielectric and conductive anomalies performed using ground penetrating radars (GPRs) requires expensive wideband systems to increase the resolution. The advent of tomographic principles in multi-monostatic GPRs dramatically improved the imaging capabilities and suggested the possibility of reducing the bandwidth of the probing waveform. In this work we propose to extend the tomographic principles to the case of below-ground distributed sensing, thus taking advantage of...
Topics: DTIC Archive, ILLINOIS UNIV AT CHICAGO, *RADAR IMAGES, *GROUND PENETRATING RADAR, SIGNAL TO NOISE...
Devices that provide hearing protection, situational awareness, and radio communications are often referred to as Communications and Hearing Protection Systems (C&HPSs). Soldiers use these systems while deployed to navigate within their environment, communicate with their team members, and protect their hearing. Each of the three features of select C&HPSs (hearing protection, speech communication, and situational awareness) was evaluated by the U.S. Army Research Laboratory in order to...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD, *COMMUNICATION AND RADIO SYSTEMS,...
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Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF INFORMATION SCIENCES, *COLLABORATIVE...
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Network data provides valuable insight into understanding complex organizations by modeling relational dependence between network agents. Detecting subtle changes in organizational behavior can alert analysts before the change significantly impacts the larger group. Statistical process control is applied to dynamic network measures of longitudinal data to quickly detect organizational change. The performance of 10 network measures and three algorithms are evaluated on simulated data. One of the...
Topics: DTIC Archive, MILITARY ACADEMY WEST POINT NY, *NETWORK ANALYSIS(MANAGEMENT), CHANGE DETECTION,...
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For the past five years, there has been heated discussion over whether or not the United States' Marine Corps will integrate a portion of its forces into the United States Special Operations Command (SOCOM). On 1 November 2005, U.S. Defense Secretary Donald H. Rumsfeld announced the creation of a force of approximately 2,600 highly specialized Marines selected to join SOCOM as part of the elite troops available for counterterrorist operations and other missions requiring exceptional skills. The...
Topics: DTIC Archive, MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA, *MARINE CORPS, *MILITARY...
On September 24, 2009, the Department of Defense (DOD) announced its proposed strategy for conducting a new competition between Boeing and a team consisting of Northrop Grumman and the European Aeronautic Defense and Space Company (EADS, the parent company of Airbus) for a program to build 179 new KC-X aerial refueling tankers for the Air Force. The estimated total value of the 179-aircraft KC-X program is roughly $35 billion. Boeing is expected to offer a KCX design based on either its 767 or...
Topics: DTIC Archive, LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE, *TANKER AIRCRAFT,...