This regulation assigns the mission and principal functions of the U.S. Army Cost and Economic Analysis Center. It includes functions previously performed by the Cost Analysis Directorate Office of the Comptroller of the Army and the Cost Analysis Division, U.S. Army Finance and Accounting Center.
Topics: DTIC Archive, DEPARTMENT OF THE ARMY WASHINGTON DC, *ECONOMIC ANALYSIS, *COST ANALYSIS, *ARMY, COST...
In the study of stress-strain relationships in silicon ribbon, numerous solutions were calculated for stresses, strain rates, and dislocation densities through the use of the Sumino model. It was concluded that many cases of failure of computer solutions to converge are analytical manifestations of shear bands (Luder's band) observed in experiments.
Topics: NASA Technical Reports Server (NTRS), CRYSTAL GROWTH, PLASTIC DEFORMATION, SILICON, STRAIN RATE,...
This report documents research conducted by the U.S. Army Construction Engineering Research Laboratory to (1) assess the feasibility of using alternative construction technology and facility acquisition methods to reduce the costs of building new child development centers, (2) select the most appropriate of these technologies and methods for obtaining child development centers, (3) develop guidance that Army personnel can use to implement and execute selected construction strategies, and (4)...
Topics: DTIC Archive, Schneider,R L, CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL,...
This thesis discusses the implementation of a discrete control systems analysis option, ORACLS, for the CONTROLS analysis package. The option encompassses a collection of FORTRAN programs that facilitate the design and analysis of linear, multiple input/multiple output digital feedback control systems. All programs are interactive and operate in the VM/CMS environment of the IBM 3033. The main focus of this thesis was the development of the FORTRAN programs ORACLSX and TRANFUNC. These serve as...
Topics: DTIC Archive, Brenny,M K, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *CONTROL SYSTEMS, *SYSTEMS...
Many different flow cases with nominally two-dimensional turbulent separated flow regimes are discussed. Because of intermittent flow reversal and backflow near the wall, directionally sensitive measurement techniques such as hot-wire, pulsed-wire and laser anemometry are discussed. Experimentally- observed structure of detached flows on streamlined surfaces and around sharp- edged corners is discussed for steady and unsteady incompressible and compressible cases where large-scale structures...
Topics: DTIC Archive, Simpson, Roger L, ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT...
The seakeeping model experiments conducted are an integral part of the Naval Sea Systems Command (NAVSEA) program to develop new technology that will enable all U.S. Flag roll-on/roll-off vessels to be safely off-loaded offshore in rough seas (Sea State 3 conditions - 5 ft significant wave height). The offshore off-loading system currently under investigation employs standard Navy causeway sections which would be transported to the off-loading site on ships. A platform capable of supporting the...
Topics: DTIC Archive, Turner, C. R., DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD...
Wind tunnel tests were conducted on space shuttle orbiter insulating articles. The data, processed by a heat estimation computer program, revealed a large discrepancy in magnitude of the heat transfer coefficient over the space shuttle tile when compared to that yielded by flat plate theory and thin skin test results. A suggested cause of this discrepancy was the nonisothermal wall effect. An unsteady compressible to investigate these effects. The boundary layer equations were transformed,...
Topics: DTIC Archive, Lange,Karen J, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING,...
This work sought to verify concepts used in the design of a large scale, low speed, radial cascade wind tunnel which was to be used to investigate flow phenomena in and the performance of vaned radial diffusors. A major contributor to centrifugal compressor efficiency is the performance of the vaned diffusor which closely follows the impeller of the compressor. The purpose of this diffusor is to efficiently convert most of the kinetic energy of the transonic flow entering the vane into...
Topics: DTIC Archive, Vitting,Thomas, EXOTECH INC CAMPBELL CA, *WIND TUNNELS, *CASCADE STRUCTURES, *SWIRLER...
Analyses were performed on full-scale aircraft post-crash fire data. In particular the rate and involvement of aircraft wall and ceiling panels are examined. For two full-scale experiments the energy release rate of the interior cabin furnishings were estimated and an estimate of ceiling ignition computed. Also an extensive set of measurements, by several advanced state-of-the-art laboratory flammability devices, was conducted for fire aircraft panel materials. The measurements included piloted...
Topics: DTIC Archive, Quintiere,J G, NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD, *MATERIALS, *AIRCRAFT...
The purpose of this Validation Summary Report is to present the results and conclusions of performing standardized tests on the Verdix Ada compiler. On-site testing was performed 28-30 APR 85 at Verdix Western Operations in Aloha, Oregon, under the auspices of the Ada Validation Facility, according to the Ada Validation Office policies and procedures. The Verdix Ada compiler (Verdix Ada Development System (VADS), VAda-010-1010) is hosted on the Sun Microsystems Model 2/120 computer operating...
Topics: DTIC Archive, SOFTECH INC FAIRBORN OH, *COMPUTER PROGRAM VERIFICATION, *COMPILERS, POLICIES,...
Topical Hazard Evaluations of USDA Candidate Insect Repellent AI3-35770 were performed using New Zealand White rabbits, albino Hartley guinea pigs, and Sprague Dawley rats. Chemical AI3-35770 produced moderate to severe primary dermal irritation and necrosis in rabbits and guinea pigs. These effects were quantitatively worse in rabbits than in guinea pigs. This compound was moderately toxic to rats when given by the oral route.
Topics: DTIC Archive, Russell,R D, ARMY ENVIRONMENTAL HYGIENE AGENCY ABERDEEN PROVING GROUND MD, *TOXICITY,...
A theoretical model of how an expert programmer goes about understanding a piece of software is presented. This understanding plays an especially critical role in software maintenance tasks. The model is based on three cognitive processes: CHUNKING, SLICING, and HYPOTHESIS GENERATION and VERIFICATION. These processes are used in conjunction with a programmer's knowledge base and categories of information critical to program understanding are identified. The model also takes advantage of certain...
Topics: DTIC Archive, Dorin,P R, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *COGNITION, *PROGRAMMERS, SKILLS,...
The objective of this thesis is to investigate a means of incorporating producibility as a major design factor in all phases of design of naval surface combatants. A categorization scheme is established for the consideration of producibility. A methodology is developed for evaluation of peacetime producibility concepts. A computer program enhancement to the ship synthesis model ASSET creates and interim producibility assessment tool by analyzing ship acquisition cost in further detail beyond...
Topics: DTIC Archive, Bosworth,M L, MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING, *SHIP...
In April 1984 the Institute for Defense Analyses was directed by OSD to assemble a task force of senior industry and government people to address the problems faced by DoD in attaining an integrated computer-aided logistics support system. The task force was given a charter to develop a strategy and a recommended master plan for computer-aided logistic support. The task force was formed and held an intensive series of meetings during the last half of 1984 during which this report was prepared....
Topics: DTIC Archive, Riddell,Frederick R, INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA, *LOGISTICS...
A numerical investigation of the electron collecting sheath about a positively biased probe in the ionosphere has been conducted to determine the effect of ionization within the sheath. This report is directed at the space charge limited regime appropriate to objects with characteristic size much larger than the ambient Debye length, and uniform surface potential much greater than the ambient plasma temperature. A fluid approximation is employed to model the dynamics of the secondary plasma...
Topics: DTIC Archive, Cooke, D L, S-CUBED LA JOLLA CA, *SPACECRAFT COMPONENTS, *ELECTRON ACCEPTORS, *SPACE...
This report documents a maintenance support analysis performed on existing intermediate maintenance activities to identify the maintenance and support policy changes, and the internal and external procedural changes necessary to institutionalize an intermediate maintenance concept for electronic equipment. Additional Keywords: repair; fleets(ships); operational readiness; Naval equipment. (Author)
Topics: DTIC Archive, KETRON INC ARLINGTON VA, *MAINTENANCE, *ELECTRONIC EQUIPMENT, *NAVAL EQUIPMENT,...
This report describes atmospheric conditions in the Middle East. This area is defined here as Iran, Iraq, the Arabian Peninsula, Syria, Lebanon, Jordan, Israel, and Egypt. A detailed discussion of the extreme variability of precipitation in both space and time is given. Available information about temperature, humidity, fog, dust storms, and solar energy is summarized. Tables of three-hourly seasonal data for Tel Aviv, Jerusalem, Dhahran, Baghdad, and Tehran are included. These tables list...
Topics: DTIC Archive, Stewart, Dorathy A., ARMY MISSILE COMMAND REDSTONE ARSENAL AL RESEARCH DIRECTORATE,...
Methods are described for calculating the effects of forward scatter by ionospheric irregularities on high-frequency sky-wave radio signals. The approach combines the forward-scatter theory (developed to treat refracted-ray paths in the context of acoustic propagation in oceans) with the model of ionospheric irregularities developed by the Defense Nuclear Agency. Expressions are given for calculating signal decorrelation in time, space and frequency. Keywords include: High-frequency Radio-wave...
Topics: DTIC Archive, Price,Gary H, SRI INTERNATIONAL MENLO PARK CA, *SOUND TRANSMISSION, *SKY WAVES,...
This thesis examines the nature and scope of surprise and its uses in modern warfare using historical data, computer-aided analysis, and three case studies (Manchuria, Czechoslovakia, Afghanistan). From the data analysis, this thesis develops a Soviet 'style' of surprise. Additionally, the analysis indicated that with a relatively small number of deceptive uses the probability of a successful surprise attack is very high even if the uses are detected and a warning is sounded. This thesis ends...
Topics: DTIC Archive, Rowe, Wayne J, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *ATTACK, *MILITARY TACTICS,...
Previous research has investigated laser beam interaction with flat surfaces. Those studies have generated theoretical foundations for cratering, plasma formation and expansion, and electric and magnetic field dynamics. This thesis applies previously developed theory to understanding damage to spherical targets of 1 millimeter diameter and smaller. The targets analyzed were irradiated on one side with 300 picosecond iodine laser pulses (6 X 10 to the 15th power w/sq cm. Direct laser beam damage...
Topics: DTIC Archive, Stephenson,C O, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *PLASMAS(PHYSICS), *SPHERES,...
Two programming paradigms, logic programming and functional programming, are discussed in detail with emphasis on the particular advantages and disadvantages of each paradigm. The integration of these two programming paradigms is explored based on the notion that declarative sorts of knowledge (facts and logical relationships) should be expressed in a declarative way, and that procedural sorts of knowledge (manipulation, control, and utilization of knowledge) should be expressed in a procedural...
Topics: DTIC Archive, Rhodes,R E, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *COMPUTER PROGRAMMING,...
The purpose of this paper is to review the literature that is currently available on induced movement benefit. The reviewer focused on coal and grain trade. A wide range of sources were consulted and read in order to find any research that had been done on induced movement benefit. Findings are summarized, and future research topics on feasible models were identified. Additional keywords: Benefit-cost analysis, discriminant analysis, optimization.
Topics: DTIC Archive, Malone,P, CORPS OF ENGINEERS FORT BELVOIR VA WATER RESOURCES SUPPORT CENTER, *COST...
This loose-leaf directory of California state agency libraries and information sources lists names of senior staff, address, telephone number, hours, subject strengths, circulation policies, and services of more than 150 libraries and information centers within the California state government. The information was collected through questionnaires and telephone calls. Directory entries are arranged by agency and then department title. Individual library and information center names, as well as...
Topics: ERIC Archive, Information Centers, Information Services, Information Sources, Library Collections,...
The paper suggests priorities for the federal government's elementary and secondary education data collection efforts. Sections on outputs, inputs, and private schools describe what data is needed, what is already available, and what is recommended for data collection. Recommendations include a high priority for federal funding for the National Assessment of Educational Progress (NAEP). Scholastic Aptitude Test (SAT) and American College Test (ACT) scores should be published by state alongside...
Topics: ERIC Archive, College Entrance Examinations, Cross Cultural Studies, Data Collection, Dropout Rate,...
Prior to the beginning of the Pioneer I shot series of the Los Alamos National Laboratory TRAIL-MASTER project, numerous computational simulations were run to provide ball-park estimates for the electrical currents and voltages in the circuit, the timing of the implosion, the kinetic energy, temperature, and radiation output of the load. The purpose of these calculations was to provide guidance in setting the timings of the various switches within the circuit and to establish operating ranges...
Topics: DTIC Archive, LOS ALAMOS NATIONAL LAB NM, *CIRCUITS, *ELECTRIC CURRENT, COMPUTERIZED SIMULATION,...
This project investigated the relationship between Air Force Officer Qualifying Test (AFOQT) composite scores and student performance in Air Force air weapons controller training. The purpose of this study was to examine the feasibility of using AFOQT scores as one selection criteria for entry to the air weapons controller field. An analysis of training performance data for 968 students showed a significant positive correlation between AFOQT Academic Aptitude composite scores and successful...
Topics: ERIC Archive, Academic Achievement, Admission Criteria, Classification, Comparative Analysis,...
This bibliography lists 360 reports, articles, and other documents introduced into the NASA scientific and technical information system in May 1985.
Topics: NASA Technical Reports Server (NTRS), AEROSPACE MEDICINE, BIOLOGICAL EFFECTS, EXOBIOLOGY, AEROSPACE...
Community newspaper published quarterly by the Glen Park Association reporting on topics important to the neighborhoods of Glen Park, Sunnyside, and Diamond Heights in San Francisco. Various publication schedules since 1977.
Topics: Glen Park T-Shirts, Glen Park Fire, GPA Board Roster, Glen Park Merchants Association, Business...
Two recent solidification processes have been applied in the production of IN-100 nickel-base superalloy: rheocasting and vacuum arc double electrode remelting (VADER). A detailed microstructural examination has been made of the products of these two processes; associated tensile strength and fatigue crack propagation (FCP) rate at an elevated temperature were evaluated. In rheocasting, processing variables that have been evaluated include stirring speed, isothermal stirring time and volume...
Topics: NASA Technical Reports Server (NTRS), CRACK PROPAGATION, ELECTRODES, HEAT RESISTANT ALLOYS, INGOTS,...
This paper presents an overview of the conceptual and detailed mechanical design of the PBFA-II Pulse Forming Section, The design goals were configuration specification, modularity for ease of installation and maintenance, durability and low cost. The design process began by determining the basic configuration.
Topics: DTIC Archive, SANDIA NATIONAL LABS ALBUQUERQUE NM, *PARTICLE ACCELERATORS, *PARTICLE BEAMS,...
Pulsed excimer laser annealing was successfully performed using a 50 w laser. Both polished and texturized cells were tried, however, there are serious problems with nonuniformity on texturized cells. A number of cells were produced and compared to diffusion furnace annealed cells. There was no clear economic advantage in using an excimer laser and there was a small penalty on average efficiency. The conclusion was that the excimer laser anneal process must be able to produce superior cells to...
Topics: NASA Technical Reports Server (NTRS), COST ANALYSIS, EXCIMER LASERS, ION IMPLANTATION, LASER...
Efforts were aimed at achieving a simultaneous front and back junction. Lasers and other heat sources were tried. Successful results were gained by two different methods: laser and flash lamp. Polymer dopants were applied to both sides of dendritic web cells. Rapid heating and cooling avoided any cross contamination between two junctions after removal of the dendrites. Both methods required subsequent thermal annealing in an oven to produce maximum efficiency cells.
Topics: NASA Technical Reports Server (NTRS), DENDRITIC CRYSTALS, EXCIMER LASERS, FLASH LAMPS, PULSED...
Progress on research in high-efficiency silicon solar cells is presented. Topics addressed include: recombination measurement techniques, doped crystals, minority carrier transport, oxygen process in solar cells, solar cell models, loss mechanics in solar cells, high-efficiency metal insulators, dendritic web cells, and surface and bulk loss reduction by low-energy hydrogen doping.
Topics: NASA Technical Reports Server (NTRS), DENDRITIC CRYSTALS, DOPED CRYSTALS, MINORITY CARRIERS, MIS...
The purpose is to describe a recently developed technique aimed at providing a universal interface between surface types. In brief, a software package was developed which functions a common denominator of CAD/CAM surface types. This software enable one to convert from any given surface representation to any other target representation. The tiles maintain the same slope continuity as the target surface gram, bicubic patches are used since they allow one to match point, slope, and twist vectors...
Topics: NASA Technical Reports Server (NTRS), COMPUTER AIDED DESIGN, COMPUTER AIDED MANUFACTURING, COMPUTER...
For laser Doppler velocimetry studies employing sapphire windows as optical access ports, the birefringency of sapphire produces an extra beam intersection volume which serves to effectively smear the acquired velocity flow field data. It is shown that for a cylindrical window geometry, the extra beam intersection volume may be eliminated with minimal decrease in the fringe visibility of the remaining intersection volume by suitably orienting the polarizations of the initial laser beams. For...
Topics: NASA Technical Reports Server (NTRS), BIREFRINGENCE, LASER DOPPLER VELOCIMETERS, LASER WINDOWS,...
Synopses are given for NASA supported work in computer science at the University of Virginia. Some areas of research include: error seeding as a testing method; knowledge representation for engineering design; analysis of faults in a multi-version software experiment; implementation of a parallel programming environment; two computer graphics systems for visualization of pressure distribution and convective density particles; task decomposition for multiple robot arms; vectorized incomplete...
Topics: NASA Technical Reports Server (NTRS), COMPUTER GRAPHICS, COMPUTER SYSTEMS PROGRAMS,...
The idea of family is being rediscovered in the 1980s. By no means coincidentally, industrial economies throughout the western world have been experiencing serious contraction. Quebec's 1984 working paper on family policy, "For Quebec Families," is illustrative of one government's rediscovery of family by means of the appropriation of the idea of family as a principle of integration within the context of characteristically atomistic and fragmented industrial states. However, it is by...
Topics: ERIC Archive, Economic Factors, Family Problems, Family (Sociological Unit), Foreign Countries,...
This paper presents an overview of research on academic tasks in the classroom and describes some of the themes that are emerging from studies in this area. The concept of "academic task" is defined along with problems associated with using this theoretical construct in classroom research. Three conceptions of how content should be represented to illustrate dimensions of the problems of curriculum in the classroom are summarized. How content is represented in teachers' definitions of...
Topics: ERIC Archive, Cognitive Processes, Course Content, Curriculum Design, Educational Objectives,...
From the bitsavers.org collection, a scanned-in computer-related document. tandem :: technical reports :: TR85-04 An Approach to Decentralized Computer Systems Jun85
Topics: decentralized, transaction, data, systems, node, system, database, object, nodes, distributed,...
Experiments are described in which a plasma compression opening switch is used in planar geometry to sharpen the output pulse of an explosive-driven magnetic flux compression generator. Included are data from tests where peak opening switch currents range from 5.7 to 9.3 MA. The switch is used to transfer current to a static low-inductance load (-10 nH) with an efficiency of 50% or better and a risetime as low as 0.45 micros. Results related to current transfer are interpreted within a simple...
Topics: DTIC Archive, LOS ALAMOS NATIONAL LAB NM, *PLASMA OPENING SWITCHES, *PULSE COMPRESSION, CIRCUITS,...
This report documents a literature search that was aimed at identifying the potential for recoverable coalbed methane resources at naval facilities in the United States. Several geologic factors that influence the occurrence of coalbed methane were examined, the most important of which is coal rank. Other factors include the formation pressure, the permeability and porosity of the coal, the degree of fracturing (deformational history), the depth of burial, the distance to the outcrop, and the...
Topics: DTIC Archive, Bjornstad,Steven C, NAVAL WEAPONS CENTER CHINA LAKE CA, *RESOURCE MANAGEMENT,...
The industrial nations of the world are in the turbulent times of a structural shift from an industrial society to a technical society based on the exchange of ideas, information, and knowledge. Such a transition calls for postsecondary education to understand the values and expectations of the individuals and the character of the institutions and organizations that comprise the society. During the 1970's, a new approach for planning and managing educational institutions and systems began to...
Topics: ERIC Archive, College Administration, College Planning, College Role, Fund Raising, Futures (of...
Described are the results of two separate surveys of cross-sections of the Philadelphia public concerning their cultural behavior, attitudes, and perceptions. The more recent survey was conducted in 1984 with a random telephone sample of 404 Philadelphia residents. The other survey consisted of a subset of approximately 400 Philadelphia area residents who were part of a larger national study conducted throughout 1982, the survey of Public Participation in the Arts, conducted by the U.S. Census...
Topics: ERIC Archive, Audience Analysis, Audiences, Cultural Activities, Cultural Enrichment, Cultural...
Compared with conventional ferromagnetic fuselage cores, superconducting solenoid cores appear to offer significant reductions in the projected cost of a large wind tunnel magnetic suspension and balance system. The provision of sufficient magnetic roll torque capability has been a long-standing problem with all magnetic suspension and balance systems; and the spanwise iron magnet scheme appears to be the most powerful system available. This scheme utilizes iron cores which are installed in the...
Topics: NASA Technical Reports Server (NTRS), IRON, MAGNETIC SUSPENSION, SOLENOIDS, SUPERCONDUCTING...
Life support systems in space travel, in closed ecological systems were studied. Topics discussed include: (1) problems of life support and the fundamental concepts of bioregeneration; (2) technology associated with physical/chemical regenerative life support; (3) projection of the break even points for various life support techniques; (4) problems of controlling a bioregenerative life support system; (5) data on the operation of an experimental algal/mouse life support system; (6) industrial...
Topics: NASA Technical Reports Server (NTRS), CELLS (BIOLOGY), CLOSED ECOLOGICAL SYSTEMS, CONFERENCES,...
A water dielectric double Blumlein pulse generator has been designed that could deliver a 790 KV prepulse and then sustain 800 KA for about 300 ns in a novel low inductance Excimer laser head.
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC, *GAS LASERS, *PULSE GENERATORS, DIELECTRICS,...
Many biological systems may profitably be studied as surface phenomena. A model consisting of isotropic growth of a curved surface from a flat sheet is assumed. With such a model, the Gaussian curvature of the final surface determines whether growth rate of the surface is subharmonic or superharmonic. These properties correspond to notions of convexity and concavity, and thus to local excess growth and local deficiency of growth. In biological models where the major factors controlling surface...
Topics: NASA Technical Reports Server (NTRS), BIONICS, CURVES (GEOMETRY), ESTIMATING, FLAT SURFACES,...
A program to develop the technology of the silicon dendritic web ribbon growth process is examined. The effort is being concentrated on the area rate and quality requirements necessary to meet the JPL/DOE goals for terrestrial PV applications. Closed loop web growth system development and stress reduction for high area rate growth is considered.
Topics: NASA Technical Reports Server (NTRS), CRYSTAL GROWTH, DENDRITIC CRYSTALS, SILICON, STRESS ANALYSIS,...
From the bitsavers.org collection, a scanned-in computer-related document. p-cad :: 1986 :: 000-0064-00 Motorola CMOS Macrocell Array Library Jun85
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