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Nov 14, 2019 Defense Technical Information Center
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Source: http://www.documentcloud.org/documents/6112343-FOIA-2019-116.html
Document Cloud
Nov 14, 2019 Defense Technical Information Center
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Source: http://www.documentcloud.org/documents/6154946-Responsive-Documents.html
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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Certain structural measures make it possible to obtain a uniform flow in a wind tunnel test section with a low degree of turbulence. One of these measures is grids in the prechamber of the wind tunnel which equalize the fields of average speed and reduce the intensity of turbulent fluctuations. This article gives the results of an investigation on the effect of the specific resistance of a grid and a number of grids in sequence on reduction of the turbulent fluctuations in speed.
Topics: DTIC Archive, Lebiga, V A, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *TURBULENCE, *WIND...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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Research projects using large numerical simulations of natural phenomena encounter problems acquiring computer and data storage resources. Work by the ARPA-sponsored climate project at Rand is cited as exemplifying these problems. Certain of these problems are solvable by the large-scale resource sharing of the ARPA Network. The VIEW system addresses a further problem -- aiding researchers via graphical analysis of large, remotely-located data bases. In order to access remote data storage...
Topics: DTIC Archive, Harslem, Eric F, RAND CORP SANTA MONICA CA, *CLIMATE, CONTROL SEQUENCES, DATA...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The terms included in the Chinese to English dictionary have been arranged according to the numerical order of the radical element of the initial character of each term. The order of the characters follows the classical order of radicals set up by the Emperor K'ang-Hsi and traditionally adhered to by nearly all compilers of dictionaries of the Sinogram.
Topics: DTIC Archive, ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA, *RADAR, *DICTIONARIES,...
Defense Technical Information Archive
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The report is on one aspect of a study to conceptualize and develop a theory and structure of human abilities and temperament. It is directed toward the identification of tests and other instruments that can serve as markers for well established factors. A literature review takes the form of a discussion of the various analyses in which 28 factors seem to have appeared and the extent to which the listed subscales measure them.
Topics: DTIC Archive, French, John W, EDUCATIONAL TESTING SERVICE PRINCETON NJ, *PERFORMANCE(HUMAN),...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The report describes the continued development of the wide-angle, low noise BALAD receiver (Bleachable Absorber Laser Amplifier and Detector). The spatial and frequency resolution of a SF6 saturable absorber in a 10.6 micrometer BALAD configuration has been measured. The experimental results agree with the theoretical predictions. The components of a Xenon-Xenon 3.5 micrometer BALAD system have been assembled, and experimental tests have been initiated. The theoretical analysis of the...
Topics: DTIC Archive, LaTourrette, James T, POLYTECHNIC INST OF BROOKLYN FARMINGDALE NY, *INFRARED...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The solubility of RuO2 in 63% PbO-25% B2O3-12% SiO2 glass has been determined as a function of temperature, both for the equilibrium case and for times typically associated with thick film resistor firing. Studies with the hot stage metallograph have demonstrated the feasibility of obtaining quantitative sintering data with this experimental tool, and have shown the release of gas bubbles from resistors for unexpectedly long periods of time at normal firing temperatures. Possible sources of the...
Topics: DTIC Archive, Vest, R W, PURDUE RESEARCH FOUNDATION LAFAYETTE IN, *CIRCUITS, *FIXED RESISTORS,...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The use of continuous or quasi-continuous systems for pulsed explosion rock excavation, can have major advantages over conventional methods. This report considers the feasibility and applicability of such an explosive system concept. The optimum properties of the explosive system, the effectiveness of the explosive rock interactions and the interactions between successive explosions were determined in tests on granite and concrete. A prototype multiple charge launcher was designed, built and...
Topics: DTIC Archive, Louie, Nikolai A, WHITTAKER CORP NORTH HOLLYWOOD CA SHOCK HYDRODYNAMICS DIV,...
A method of calculating the parameters for the entrainment of teflon mass in the neighborhood of the stagnation point of an axisymmetric blunt body as a function of the parameters of an incident high-temperature flow over a wide range of enthalpies and stagnation pressures is proposed.
Topics: DTIC Archive, Yurevich, F B, ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA,...
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Topics: DTIC Archive, McAllister, G L, NORTHROP RESEARCH AND TECHNOLOGY CENTER PALOS VERDES PENINSULA CA,...
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Nov 13, 2019 Defense Technical Information Center
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Heavy ions with energies between 1 and 9 keV have frequently been detected with an energetic ion mass spectrometer on the satellite 1969-25B during the period March 1969 to August 1970. Their identification as 0+ ions of ionsopheric origin has been inferred from a comparison with the more complete mass measurements with an improved spectrometer on the satellite 1971-089A, and from considerations of ionospheric and solar wind abundance ratios. Data from nine magnetic storms have been analyzed,...
Topics: DTIC Archive, Sharp, Richard D, LOCKHEED MISSILES AND SPACE CO INC PALO ALTO CA PALO ALTO RESEARCH...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The applicability of current theory and measures of risk-taking (R-T) to the understanding and selection of military aviators was investigated. The project consisted of three interrelated sections: (1) an extensive review and critique of the literature in R-T, (2) the development of an alternate measure emphasizing the decisional aspects of R-T, and (3) preliminary findings of a brief study employing proposed signal detection theory measure. On the basis of the R-T literature review, a number...
Topics: DTIC Archive, Long, Gerald M., NAVAL AEROSPACE MEDICAL RESEARCH LAB PENSACOLA FL, *NAVAL AVIATION,...
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Nov 13, 2019 Defense Technical Information Center
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The results of a two-year program on dynamic fracture behavior of rocks are described. The goal was to develop the capability to predict the fragment size distribution of rock resulting from known dynamic loads. This goal has been largely realized for a simple, well-characterized rock type, Arkansas novaculite, under one-dimensional-strain impact loading. A gas gun was used to accelerate flat plates against flat rock specimens. Ytterbium piezoresistive stress gages were used to measure stress...
Topics: DTIC Archive, Shockey, Donald A, STANFORD RESEARCH INST MENLO PARK CA, *ROCK, CRACKS,...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The purpose of the paper is to investigate the factors which influence the productivity of individual Marine recruiters. The relative importance of (1) characteristics of individuals, (2) geographical assignment, and (3) the deployment patterns of individuals is assessed based on a sample of 259 recruiters at 29 recruiting stations. The study included 16 variables. The most important determinent of performance appears to be a propensity to enlist in the recruiting market to which the recruiter...
Topics: DTIC Archive, Bennett, James T, GEORGE WASHINGTON UNIV WASHINGTON DC PROGRAM IN LOGISTICS,...
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A numerical procedure for the structural analysis of a general three- dimensional nature has been developed to provide a reliable solution to the problem of determining the strength of propellers, particularly those with unconventional configurations. A finite element displacement model is used and compatible solid elements in their general form are adopted. The use of interpolation functions to define pertinent curvilinear coordinates in element space gives the finite element technique, new...
Topics: DTIC Archive, Ma, James H, DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD...
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Vroom's expectancy models for job effort, satisfaction and performance were tested and received moderate support. Also, five modifications or extensions of the theory are reviewed and empirically tested. In general, these changes suggested that the inclusion of others' expections and the assessment of the subject's control over his behavior increased the predictability of the model. Intrinsic outcomes are more highly related to the criteria than extrinsic outcomes. Unseighted models do as well...
Topics: DTIC Archive, Mitchell, Terence R, WASHINGTON UNIV SEATTLE DEPT OF PSYCHOLOGY, *BEHAVIOR,...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The Kidd-Stubbs pneumatic analogue decompression computer is used for the real-time prediction of the safe ascent depth following an excursion to depth. The theoretical model which is derived from the decompression computer can be solved using numerical techniques on a digital computer, or can be solved on an analogue computer. This report describes a series of Fortran IV programs which have been written to solve this theoretical model under a variety of conditions. The basic program can be...
Topics: DTIC Archive, Nishi, Ronald Y, DEFENCE AND CIVIL INST OF ENVIRONMENTAL MEDICINE DOWNSVIEW...
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Nov 13, 2019 Defense Technical Information Center
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The feasibility of reducing cost per terminal hour of computer assisted instruction (CAI) was investigated by training Ss in pairs on two modules of an operationally tested tutorial CAI course in the Navy's basic electronics curriculum. Navy electronics students, randomly assigned to groups, received all training on an IBM 1500 Instructional System. The major complaint reported by paired students was that the partner went either too fast or too slow. The results indicate that paired student...
Topics: DTIC Archive, Hurlock, Judith A, NAVAL PERSONNEL AND TRAINING RESEARCH LAB SAN DIEGO CA, *COST...
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Nov 13, 2019 Defense Technical Information Center
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The present study was initiated to determine the feasibility of shell mold casting nominal 60-Nitinol into suitable EOD (Explosive Ordnance Disposal) tools. Pr Primary emphasis was directed to alloy-mold interaction, effects of graphite mold coating, shrinkage and porosity problems, alloy fluidity, surface finish and definition and property response of cast alloy. Based upon the results, 60-Nitinol appears quite suited to shell molding and a casting approach, provided the alloy melting and...
Topics: DTIC Archive, Buehler, William J, NAVAL ORDNANCE LAB WHITE OAK MD, *NICKEL ALLOYS, *CASTING,...
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An empirical equation has been developed for the prediction of transition location on blunt and sharp cones. The equation predicts the transition location fairly well for 48 ballistics range tests for cones without ablation and for 40 flight tests for cones with ablation ranging from zero to large. The equation is applicable for cones in supersonic or hypersonic flight. The experimental data cover a range of local Mach numbers at transition from 2.8 to 14.7 and a range of the ratio of local...
Topics: DTIC Archive, Tetervin, Neal, NAVAL ORDNANCE LAB WHITE OAK MD, *REENTRY VEHICLES, *BOUNDARY LAYER...
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Nov 13, 2019 Defense Technical Information Center
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Current Naval aviator selection and screening procedures are based on the individual's statistical probability of completing flight training and do not determine the capability of the student to adapt to an operational environment. The resultant failure of some student aviators to complete the advanced stages of training and the ineffective performance of others in operational missions have caused a considerable financial loss and a lessening of combat readiness. A critical incident study,...
Topics: DTIC Archive, Stanley, Jr, Maurice D, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *NAVAL AVIATION,...
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Nov 13, 2019 Defense Technical Information Center
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Hydraulic ram is the physical production of pressure wave wall loadings due to projectile penetration and their effect on a fuel cell. Facilities were designed and testing conducted in preparation for investigation of the hydraulic ram phenomenon. A ballistic range was designed that yielded projectile velocity and flight attitude information before and after wall penetration. Wall specimens of a single thickness were impacted by a range of projectile sizes, weights, shapes, and velocities. This...
Topics: DTIC Archive, Bates, Kenneth S , Jr, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *FUEL TANKS,...
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Nov 13, 2019 Defense Technical Information Center
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The research accomplishments during the past reporting period are given in a series of abstracts included in the report Particular emphasis has been placed on the development of source theory and its incorporation into the calculation of synthetic seismograms in the frequency domain. These techniques were used in the first half of the reporting period to determine theoretical M(S) distance corrections; the effect of tectonic regions on the body wave spectra of explosions, and in the evaluation...
Topics: DTIC Archive, Anderson, Don L, CALIFORNIA INST OF TECH PASADENA SEISMOLOGICAL LAB, *SEISMOLOGY,...
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Nov 13, 2019 Defense Technical Information Center
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Ring width chronologies are obtained from sites throughout North America and Europe. When the network of sites has sufficient aereal coverage the hemisphere-wide variations in the recorded climate will be calibrated with variations in growth and these calibrations used to reconstruct past climate for time periods when tree-ring data are available but climatic data do not exist. Progress on collection and processing of data is described and developing plans for international cooperative efforts...
Topics: DTIC Archive, Fritts, Harold C, ARIZONA UNIV TUCSON, *CLIMATE, HISTORY, NORTH AMERICA,...
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Nov 13, 2019 Defense Technical Information Center
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The basic question is whether or not the Army Reserve Components will probably be mobilized in a future national emergency or war. Experience since WWII up through Vietnam was examined. The present status of the reserves and the problem areas of personnel, training, equipment, facilities, and technicians are discussed.
Topics: DTIC Archive, Moore, Robert W, ARMY WAR COLLEGE CARLISLE BARRACKS PA, *MILITARY RESERVES, *WARFARE,...
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Nov 13, 2019 Defense Technical Information Center
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In 1958 at the request of President Chamoun of Lebanon, American troops landed in Lebanon in a show of force to deter the fall of his government to communisum. Reaction to this American involvement in the affairs of a sovereign nation was immediate, divisive, and both favorable and unfavorable. The paper presents a background of factors leading up to the 1958 crisis, a narrative description of that critical time, and an analysis of the impact these events have had on American prestige,...
Topics: DTIC Archive, Wagner, Theodore F, ARMY WAR COLL CARLISLE BARRACKS PA, *FOREIGN POLICY, *LEBANON,...
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Nov 13, 2019 Defense Technical Information Center
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The essay makes a quick survey of the Indian Ocean and its littoral countries. It examines the interests of outside major world powers, several of which have had colonial interests in various parts of the area. The threat of the USSR's filling the power vacuum created by Great Britain's withdrawal of its military forces from the area is examined. The United States' future role as the major free world power is assessed. Guidelines for future United States foreign policy are recommended.
Topics: DTIC Archive, Ward, Jr, Norman E, ARMY WAR COLL CARLISLE BARRACKS PA, *UNITED STATES GOVERNMENT,...
The study examines those internal conflicts, essentially political, resulting from the doctrine of Counterinsurgency as it has impacted and will probably continue to impact the United States Army, its counterinsurgency concepts, organization, its psychology and its personnel policy. Data were gathered from a literature search, selected interviews and supplemented by the author's experience as U. S. Army Correspondent in Southeast Asia.
Topics: DTIC Archive, Ward, William F, ARMY WAR COLLEGE CARLISLE BARRACKS PA, *COUNTERINSURGENCY, ARMY,...
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Nov 13, 2019 Defense Technical Information Center
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The basic question is what is the importance of the Indian Ocean and its rimland. A study was made, focusing on the geographic element of power, to determine the strategic importance of the region. Precarious economics, political fragmentation and dominance of the world's petroleum supply make this a region of increased emphasis for United States strategy.
Topics: DTIC Archive, Weaver, Gene A, ARMY WAR COLL CARLISLE BARRACKS PA, *MILITARY STRATEGY, POLITICAL...
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Nov 13, 2019 Defense Technical Information Center
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A study was made of the possibilities for permanent Egyptian-Israeli Borders to replace the present cease-fire line along the Suez Canal, which is unacceptable to Egypt, and the 1967 pre-war armistice line, which has become unacceptable to Israel. The analysis deals with politico-geographical problems related to: the Gaza Strip, the Suez Canal, passage of Israeli shipping through the canal, Sharm el Sheikh, and most prominently with stages of withdrawal of Israeli forces in the Sinai Peninsula....
Topics: DTIC Archive, Winn, Arthur C, ARMY WAR COLL CARLISLE BARRACKS PA, *EGYPT, *FOREIGN POLICY, *ISRAEL,...
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Nov 13, 2019 Defense Technical Information Center
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What is the situation in Chile which resulted in a Marxist president being elected by free vote to operate a democracy. How does this impact upon the United States. The study presents the Chilean background, reviews the general election itself, and then discusses the current situation.
Topics: DTIC Archive, Wood, Jr, Stuart, ARMY WAR COLL CARLISLE BARRACKS PA, *CHILE, *GOVERNMENT(FOREIGN),...
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Nov 13, 2019 Defense Technical Information Center
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POSSIBLE, THE Russian point of view is taken by use of Soviet references. The Germans violated two principles of war; they lacked surprise and sufficient combat power. The Red Army defeated the Wehrmacht at a place and time chosen by the German and at a scale that dwarfed any other action in Europe during the Second World War. Kursk marked the Nazi Waterloo and turned the tide of the war. Lessons learned, true in either nuclear or conventional war, are offered. Through them, the reader should...
Topics: DTIC Archive, Thorsen,Peter L, ARMY WAR COLLEGE CARLISLE BARRACKS PA CARLISLE BARRACKS United...
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The report summarizes a three year effort in the study of the synthesis of rare earth compounds and an investigation of their magnetic, optical and semiconducting properties. The development of the growth of single crystals from the simple face centered cubic magnetic insulating rare earth chalcogenides, to the more complex Th3P4 type structures and lower symmetry layer compounds is described. Objectives include the synthesis of higher purity materials, the improvement of crystal perfection,...
Topics: DTIC Archive, Holtzberg, F, IBM THOMAS J WATSON RESEARCH CENTER YORKTOWN HEIGHTS NY, *GADOLINIUM...
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Nov 13, 2019 Defense Technical Information Center
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The object is to predict China's actions versus India during the next ten years. During the period 1972 through 1976, it is believed that China will cautiously employ subtle, non-dramatic strategies as she builds her economy and strategic power. Suggested U.S. policies include cautiously normalizing relations with China and shifting more responsibility to the Asians. And, also, using the opportunities created by the recent India-Pakistan war to strengthen our ability to defend the oil-rich...
Topics: DTIC Archive, Hamersly, James W, *CHINA, *FOREIGN POLICY, *INDIA, ECONOMICS, MILITARY STRATEGY,...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The essay outlines aspects of the historical development and international involvement of the Students for a Democratic Society and the various peace mobilization groups involved in the antiwar protest movement in the United States during the past decade. Specific time is devoted to the anti- military activities of these organizations and their discernible effects upon the United States military.
Topics: DTIC Archive, O'Brien, Paul L, ARMY WAR COLL CARLISLE BARRACKS PA, *WARFARE, *URBAN AREAS,...
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Nov 13, 2019 Defense Technical Information Center
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The best hope for peace is successful negotiations for arms control with the Soviets. These have been less than successful because Americans and Soviets do not understand one another's language. This peculiar understanding is based on the completely different structure of his society and understanding of the US MIC (Military Industrial Complex). The Soviet and US MICs were examined from the point of view of the USSR and an attempt was made to show the bias of the Soviet negotiator as a result...
Topics: DTIC Archive, Schneider, William P, ARMY WAR COLL CARLISLE BARRACKS PA, *USSR, *INDUSTRIES, *ARMS...
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Nov 13, 2019 Defense Technical Information Center
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The current career officer education system is examined from the branch officer basic course through the war college level. An alternative system is proposed that would require a much higher level of initiative by the individual and a much smaller investment in manpower and facilities by the Army while accomplishing the same basic objectives. Data were gathered by literature search and derived from personal experiences. The proposed system which places essentially all education after the basic...
Topics: DTIC Archive, Habermehl, Robert N, ARMY WAR COLLEGE CARLISLE BARRACKS PA, *EDUCATION, ARMY PERSONNEL
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Nov 13, 2019 Defense Technical Information Center
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The basic question is how large a place does India have in China's foreign policy and what will that policy toward India be in the future. Sino- Indian relations have been examined in order to determine the most plausible objectives sought by China's strategy toward India. The United States, with no direct interest in the Indian subcontinent, other than keeping it from becoming a cockpit for great power conflict, has the opportunity to obtain an accommodation with China while the Soviet Union...
Topics: DTIC Archive, Dribben, Charles P, ARMY WAR COLLEGE CARLISLE BARRACKS PA, *CHINA, *INDIA, FOREIGN...
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Nov 13, 2019 Defense Technical Information Center
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The recent election of Dr. Allende, a Marxist, to the Office of President of Chile caused universal speculation concerning the future of Chile. He was elected by a narrow margin of plurality votes from a coalition composed primarily of the Radical, Communist, and his own Socialist Party. Since he took office numerous drastic social and economic reforms have occurred. Opposition to Allende's government is prevalent; however, he receives support from the working class and surprisingly, thus far,...
Topics: DTIC Archive, Hatton, Jr, Thurman T, ARMY WAR COLL CARLISLE BARRACKS PA, *CHILE, COMMUNISM,...
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Nov 13, 2019 Defense Technical Information Center
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Commanders of federal troops and National Guard units in civil disturbance operations may be subject to civil and criminal liabilities for their decisions and actions. Court opinions, law treatises, and statutes (federal and state) were reviewed to determine what legal actions could be commenced against Commanders who lead troops seeking to control civil disturbances and what defenses are available to such lawsuits. (Modified author abstract)
Topics: DTIC Archive, Lee, James B, ARMY WAR COLLEGE CARLISLE BARRACKS PA, *ARMY PERSONNEL, *DELINQUENCY,...
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Nov 13, 2019 Defense Technical Information Center
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A propellant-actuated deep water anchor is being developed to moor deep ocean surface and sub-surface structures. The anchor is designed to have a long-term holding capacity of 20,000 pounds and function in seafloors ranging from very soft sediments to hard rock (basalt) in water depths to 20,000 feet. The anchor has been designed, fabricated, and tested on land. Deep water use of this anchor requires that it be expendable; therefore, surplus ammunition components are used in the launching...
Topics: DTIC Archive, Taylor, R J, NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA, *ANCHORS(MARINE), *MOORING,...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The essay presents an historical survey of US military programs in Latin America, both past and present. The essay then discusses the present US military aid system and deals with the writer's firm conviction that in the light of recent acts of terrorism, such as bank holdups, kidnappings and murders conducted by urban guerrillas, internal security must be the first order of business for the Americas. Finally, the writer makes his recommendations for the future.
Topics: DTIC Archive, Shue, William A, ARMY WAR COLL CARLISLE BARRACKS PA, *UNITED STATES GOVERNMENT,...
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Nov 13, 2019 Defense Technical Information Center
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The precise determination of a satellite's position is of prime importance in satellite geodesy and in the use of satellites in studying geodynamics. It is not possible, however, to obtain a precise estimate of the satellite's position if sufficiently large errors exist in the gravity model. In this investigation, the application of a dynamic model compensation method to the problem of estimating the motion of a near-earth satellite in the presence of gravity model errors is described. Based on...
Topics: DTIC Archive, Schutz, B E, TEXAS UNIV AT AUSTIN DEPT OF AEROSPACE ENGINEERING AND ENGINEERING...
Defense Technical Information Archive
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The report presents heat-transfer-rate measurements on sharp and blunt 10-deg half-angle cones at angles of attack between -9 and +10 deg in a low-density, hypersonic wind tunnel. Circumferential and longitudinal distributions are presented for cold wall conditions for a range at Mach and Reynolds numbers. The effect of source-like flows was studied by utilizing both conical and contoured expansion nozzles with the same free-stream similarity parameters and model wall temperatures. Comparisons...
Topics: DTIC Archive, Boylan, D E, ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN, *AERODYNAMIC...
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Nov 13, 2019 Defense Technical Information Center
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An account if given of the variational method of the solution of physically and geometrically nonlinear problems of the theory of heterogeneous slightly curved shells. Examined are the bending and supercritical behavior of plates and conical and spherical cupolas of variable thickness in a temperature field, taking into account the dependence of the elastic parameters on temperature. The bending, stability in general and load-bearing capacity of flexible isotropic elastic-plastic shells with...
Topics: DTIC Archive, Kantor, B Ya, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *SHELLS(STRUCTURAL...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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A collection of the physical properties of nichrome films is given. Graphs are presented giving property variations as functions of composition, deposition rate, method of deposition, substrate morphology etc. Failure mechanisms such as electromigration interdiffusion, corrosion and electrocorrosion are addressed and specific information is given with regard to real, possible and unlikely mechanisms. The report is intended to give a composite review of nichrome resistor technology from a...
Topics: DTIC Archive, Lane, Clyde H, ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY, *RESISTORS, CORROSION,...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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The trend in military aircraft is toward increasing thrust loading for improved maneuverability coupled with a requirement for extended subsonic cruise range at low power settings. Conventional turbine engines designed to meet these requirements must operate over large ranges of airflow between maximum power and cruise. As a result, the inlets and nozzles designed for these engines cannot perform efficiently with the low airflow rates typical of subsonic cruise operation. Variable turbine...
Topics: DTIC Archive, May, Jr , Robert J, PRATT AND WHITNEY AIRCRAFT GROUP EAST HARTFORD CT, *TURBOFAN...
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The report summarizes the work performed during the second year of an experimental and theoretical research program concerning the self-induced thermal distortion effects on cw CO2 laser radiation propagating in absorbing media. The research program is directed toward improving the understanding of the possible limitations imposed by the atmosphere on the propagation of high power laser radiation. The work presented is concerned with essentially the following three different areas: (1) wind...
Topics: DTIC Archive, Smith, David C, UNITED AIRCRAFT RESEARCH LABS EAST HARTFORD CT, *LIGHT TRANSMISSION,...
Defense Technical Information Archive
Nov 13, 2019 Defense Technical Information Center
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Final rept.,FKramer,Irvin R. ;DAAG46-70-C-0102, ARPA Order- 188AMMRCCR-71-2/6(*aluminum alloys, crack propagation), (*titanium alloys, crack propagation), (*steel, crack propagation), (*crack propagation, metals), stresses, fatigue(mechanics), surface properties, vanadium alloys, deformationaluminum alloy 2014, plastic deformation, steel 4130, titanium alloy 6al 4vThe crack propagation of 2014-T6 aluminum, titanium (6Al-4V), and 4130 steel (YS = 180,000 psi) was measured under plane stress and...
Topics: DTIC Archive, Kramer, Irvin R, MARTIN MARIETTA AEROSPACE DENVER CO, *ALUMINUM ALLOYS, *CRACK...
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Nov 13, 2019 Defense Technical Information Center
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The goal of the program is to improve the mechanical properties of, and reduce the absorption in, alkali halides for laser window use. With KCl as a model material, higher yield strengths and fracture toughness have been achieved by forging crystals to obtain fine grained polycrystalline bodies supplemented by alloying or irradiation. Very low absorption has resulted from improved crystal growth processes and finishing operations. The mechanisms of absorption are being studied both...
Topics: DTIC Archive, Rice, R W, NAVAL RESEARCH LAB WASHINGTON DC, *INFRARED LASERS, *INFRARED WINDOWS,...
Based on the principles of constrained layer damping, 'Silent Paint' is a two-layer coating system capable of attenuating noise and vibration over a broad temperature range. The damping undercoat layer is composed primarily of a methacrylic/acrylic semi-compatible inter-penetrating polymer network (IPN) in latex form, with thickeners and preservative added. The constraining overcoat layer is based on a reinforced epoxy resin, and exhibits great stiffness. The total system, exhibiting...
Topics: DTIC Archive, Sperling, L H, LEHIGH UNIV BETHLEHEM PA MATERIALS RESEARCH CENTER, *PLASTIC COATINGS,...
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As part of the overall program to modernize the government owned, company operated army ammunition loading and assembly plants, it is planned to develop fully automatic equipment to manufacture non-electric detonators at the rate of 1200 per minute. This survey of literature sources and industry was undertaken to discover techniques and equipment that may be applicable. Current production rate in the loading plants using semi-automatic equipment is about 32 per minute with one system used at...
Topics: DTIC Archive, Hannum, Edward E, GULF AND WESTERN ADVANCED DEVELOPMENT AND ENGINEERING CENTER...
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Nov 13, 2019 Defense Technical Information Center
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The purpose of the project was to evaluate the dynamic fatigue strength of spur gear teeth produced by advanced forging techniques in comparison to those manufactured by conventional forging methods. All of the advanced forging processes evaluated in this program used high-energy-rate forging techniques which produced gear blanks with integrally forged teeth. The die design and type of press were different for the three advanced processes; however, they produced similar as-forged gear blanks...
Topics: DTIC Archive, Frint, Harold K, UNITED TECHNOLOGIES CORP STRATFORD CT SIKORSKY AIRCRAFT DIV, *GEARS,...
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Nov 13, 2019 Defense Technical Information Center
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The purpose of the reported effort was twofold: to develop rotary- wing landing gear concepts and criteria which, when applied, would lessen the magnitude of crash forces transferred to occupiable areas of helicopters involved in severe yet survivable accidents; to use the concepts and criteria to design, fabricate, and test an experimental prototype skid landing gear system. Landing gear design criteria, crash criteria, energy-absorbing design criteria, and applicable specifications were...
Topics: DTIC Archive, Phillips, Norman S, BETA INDUSTRIES INC DAYTON OH, *AIRCRAFT LANDINGS, *HELICOPTERS,...
A comparison of the Surface Integral and Adjoint Difference tecchniques are presented in the report. The comparison is made from a brief theoretical development of each method and by the results obtained using each method for several radiation transport problems of the class of a target located in air (or air-ground interface) far removed from a point neutron source. Most targets considered thus far do not contain fissile materials; however, it is demonstrated that the calculational tools...
Topics: DTIC Archive, Robinson, J C, TENNESSEE UNIV KNOXVILLE DEPT OF NUCLEAR ENGINEERING, *NUCLEAR...
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When persons of differing cultural backgrounds attempt to communicate with each other, each makes unwarranted, culturally conditioned assumptions about the other, making communication difficult. An exercise was designed to reduce this effect through increased cultural self-awareness. To facilitate this difficult process, operations were grouped into sequences, with each sequence showing several manifestations of the same cultural influence while noncultural influences were varied from excerpt...
Topics: DTIC Archive, Kraemer, Alfred J, HUMAN RESOURCES RESEARCH ORGANIZATION ALEXANDRIA VA, *SOCIAL...
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Nov 13, 2019 Defense Technical Information Center
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A computer model has been prepared to assist in the analysis of reliability test data. Essentially, the model computes point estimates and confidence limits for mission reliability of components, subsystems, and systems from component failure data. The main features of the model are: Performs goodness-of-fit tests to determine the best fit probability distribution of component failure times; Computes maximum likelihood estimates of distribution parameters; Computes point estimates of...
Topics: DTIC Archive, Racicot, R, WATERVLIET ARSENAL NY, *RELIABILITY, WEAPON SYSTEMS, STATISTICAL TESTS,...
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Nov 13, 2019 Defense Technical Information Center
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An air-driven alternator that was developed to provide electrical energy and a second safing signature for the 60-mm Multioption Fuze for mortars (MOFM) was tested successfully in the wind tunnel, in a rain field, and in extreme temperature environment conditions. The alternator design was modified so that it can be fabricated from low-cost stamped parts in large quantities. The new design satisfies the electrical power requirements of the fuze.
Topics: DTIC Archive, Campagnuolo, Carl J, HARRY DIAMOND LABS ADELPHI MD, *GENERATORS, *MORTAR FUZES,...
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Nov 13, 2019 Defense Technical Information Center
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A pressure vessel test method was used to fracture tubular specimens of a high-purity, slip-cast fused silica under ten biaxial stress states. The hoop tensile strengths obtained were from 2990 to 4300 psi. The uniaxial compressive strengths ranged from -25,800 to -48,800 psi. Different material lots were employed and strength variation with lot were observed. The modulus of rupture, 5365 psi, also was determined for 3/4-inch diameter rods.
Topics: DTIC Archive, Ely, Richard E, ARMY MISSILE RESEARCH DEVELOPMENT AND ENGINEERING LAB REDSTONE...
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Nov 13, 2019 Defense Technical Information Center
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The purpose of this research was to study the variance in recommended storage temperature for platelets and to provide proper protection during transit. Tests were conducted in an environmental chamber designed to provide constant temperature with plus or minus .01 F fluctuation. An eleven-channel scanning telethermometer was used to measure temperature of the 25 ml aliquots of platelet-rich plasma. Platelet aggregation occurs at low temperatures even with agitation; however, aggregation is not...
Topics: DTIC Archive, McPeak, Dailey W, ARMY MEDICAL RESEARCH LAB FORT KNOX KY, *BLOOD PLATELETS,...
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Nov 13, 2019 Defense Technical Information Center
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An analytical study was conducted by the Ballistics and Analytics Branch, Frankford Arsenal, for the development of a new, low engineering risk, low impulse ammunition concept as a potential candidate for the Future Rifle System (FRS). The ammunition for this new system, designated as Future Ammunition for Burst-Rifle Launch (FABRL), was analytically developed as a 37.1 grain, AR2 shape, 5.56 mm projectile with the same muzzle velocity and trajectory as the standard 5.56 mm M193 projectile. A...
Topics: DTIC Archive, Kwatnoski, Richard, FRANKFORD ARSENAL PHILADELPHIA PA, *RIFLES, *SMALL ARMS...
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TO DERIVE METHODS FOR SCORING THE DECISION-MAKING BEHAVIOR FOR USE IN A BROAD PROGRAM OF MANNED SYSTEMS RESEARCH TO IMPROVE TACTICAL DECISION MAKING. A test scenario was developed and administered individually to 20 senior field grade officers. The assigned task required each officer to write a defense plan for his division sector against an expected attack by two mechanized infantry divisions. The scenario was presented by using cathode ray tube (CRT) displays, computer-driven typewriters, and...
Topics: DTIC Archive, Krumm, Richard L, BUNKER-RAMO CORP ARLINGTON VA, *COMMAND AND CONTROL SYSTEMS, *HUMAN...
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Nov 13, 2019 Defense Technical Information Center
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The report describes a method for evaluation of military equipment transportability characteristics; discusses preliminary activities, facilities, and equipment required; and provides procedures for lifting and tiedown attachments; rail, highway, and marine transportability; terminals handling and movement; air portability, fixed and rotary wing, internal and external carried, to include airdropped materiel, shock, vibration, safety, human factors, and maintenance evaluation. Appendixes provide...
Topics: DTIC Archive, ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD, *TRANSPORTATION,...
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Nov 13, 2019 Defense Technical Information Center
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An empirical correlation was developed to predict pyrophoric sparking from two properties: (1) the standard free energy of formation per oxygen atom in the metal oxide and (2) the metal oxide volume compared with metal volume. A simple impact test was developed to study large pyrophoric pellets and the formation of free flying fragments in the laboratory. The paper describes the test and reports test results for cerium, misch metal, zirconium, and titanium. Each of the metals exhibited...
Topics: DTIC Archive, Hillstrom, Warren W, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
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Nov 13, 2019 Defense Technical Information Center
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The UTTAS(Utility Tactical Transport Aircraft System) Concept Formulation efforts produced a decision to initiate development the first time it was considered at the OSD(Office of the Secretary of Defense) level. The case study attempts to supplement the recorded history with the illumination of the many and varied aspects that impinged on and influenced the UTTAS program. With a potential for more than $2 billion worth of business for a depressed industry, the US aerospace industry, the...
Topics: DTIC Archive, Patnode, Jr, Clarence A, ARMY WAR COLL CARLISLE BARRACKS PA, *ARMY AIRCRAFT,...
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Nov 13, 2019 Defense Technical Information Center
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In the development of pavement design and evaluation criteria for aircraft with complex gear configurations (C-5A, B-747, etc.), it has been revealed that current procedures for relating aircraft operations (passes) to pavement coverages (stress and/or deflection repetitions) are cumbersome and inaccurate. The procedure for converting aircraft passes to pavement coverage has been reexamined by developing theoretical normal traffic distribution curves and fitting these curves to the limited...
Topics: DTIC Archive, Brown, Donald N, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS, *LANDING...
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Nov 13, 2019 Defense Technical Information Center
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The report evaluates different table top designs and materials and compares pedestal type tables against four-legged support type tables. Combination tables and chairs (chairs being an integral part of the table) were evaluated as well.
Topics: DTIC Archive, Athas, Stanley T, ARMY NATICK LABS MA, *KITCHEN EQUIPMENT AND SUPPLIES, *RELIABILITY,...
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Nov 13, 2019 Defense Technical Information Center
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A study was conducted to establish the procedures necessary to assure that 'detoxified' GB, VX, and HD would not be harmful to personnel handling the solutions and that solutions disposed of into water systems would not be harmful to people and aquatic organisms. The solutions tested were: 10% sodium carbonate, pH 12.3; 10% calcium hypochlorite, pH 12.6;GB detoxified with 10% sodium carbonate, pH 10.5; VX detoxified with 10% calcium hypochlorite, pH 5.9; and HD detoxified with 10% calcium...
Topics: DTIC Archive, Owens, E J, EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD, *TOXICITY, *CHEMICAL WARFARE...
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Nov 13, 2019 Defense Technical Information Center
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The char-broiler is considered acceptable for use in DoD Food Service Facilities. The broiler will cook hamburgers, frankfurters, sausages, and steaks to a high degree of acceptability. Hamburger cooking time is reduced by one-half over conventional grilling, and frankfurters, sausages, and steaks require less time than cooking by conventional methods. The grid self-cleaning feature operates satisfactorily and does a good cleaning job. The unit is safe to use and with a few design changes can...
Topics: DTIC Archive, Bernazzani, Robert L, ARMY NATICK LABS MA, *COOKING DEVICES, ACCEPTABILITY, MILITARY...
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Nov 13, 2019 Defense Technical Information Center
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This study is conducted to determine the comparative resistance to damage from rough handling abuse of flexible packages and metal cans. Flexible packages made from two laminated materials and standard metal cans of heat-processed food items are evaluated. Two food types, pumpable and semi-solid, are used to determine the effect of product consistency on failure rates. Following vibration and drop tests of case lots of the two types of packages, there is no significant difference in the failure...
Topics: DTIC Archive, Burke, Peter T, ARMY NATICK LABS MA, *CONTAINERS, *FOOD, DROP TESTS,...
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Nov 13, 2019 Defense Technical Information Center
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The work was an effort to determine whether the performance of the new type Nylon 6 for personnel armor could be further optimized by variations in molecular weight, molecular weight distribution, orientation and crystallinity. The results, although negative in respect to the goals sought, nevertheless show that an investigation of fundamentally different types of fiber is needed to obtain significant improvements in tenacity, work-to-rupture, and attendant increases in impact resistance.
Topics: DTIC Archive, Mayer, Richard E, ALLIED CHEMICAL CORP PETERSBURG VA, *BODY ARMOR, *NYLON,...
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Nov 13, 2019 Defense Technical Information Center
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The report proposes a plan for Advanced Development of a Parachute Retrorocket Airdrop System for the airdrop of cargo loads weighing from 2500 to 40,000 pounds from altitudes of 500 feet or less above terrain. The Parachute Retrorocket Airdrop System concept uses relatively small fast opening parachutes for stabilization and preliminary retardation in combination with rockets for final descent velocity control just prior to impact. This capability is required by the US Army to increase...
Topics: DTIC Archive, Chakoian, George, ARMY NATICK LABS MA, *AIR DROP OPERATIONS, *RETRO ROCKETS, IMPACT...
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Nov 13, 2019 Defense Technical Information Center
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Polarization of light reflected from soil and sand samples is studied as surface moisture and texture of the samples are varied. A reflectometer equipped with a rotating analyzer records the polarization percentage of the reflected light. The percentage of polarization runs from 15.5% for dry soil to 89% for saturated soil, indicating that the polarization method may be viable as a remote sensing system for determining soil moistures. Background on the methods and implications of the results...
Topics: DTIC Archive, Doll, Barry, ARMY ELECTRONICS COMMAND FORT MONMOUTH NJ, *SOILS, *PHOTOGRAPHIC...
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Nov 13, 2019 Defense Technical Information Center
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SE SOURCE. Data are presented dealing with physical acoustics, the characteristics of sound and appropriate noise measurements. Hearing loss resulting from both steady-state and impulse noise is discussed along with the factors influencing its acquisition and recovery and the resultant effects upon performance. Subjective and behavioral response to noise is discussed in terms of masking of auditory signals and speech, annoyance and general observation. Current research in the area of...
Topics: DTIC Archive, Hodge, David C, ARMY MATERIEL COMMAND ABERDEEN PROVING GROUND MD HUMAN ENGINEERING...