468
468
Aug 1, 1988
08/88
Aug 1, 1988
by
SourDove
audio
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448
448
Aug 1, 1988
08/88
Aug 1, 1988
by
SourDove
audio
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Source: 4-track cassette SF
5
5.0
Aug 1, 1988
08/88
Aug 1, 1988
by
Fotodienst GAU, fotograaf
image
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Het Utrechts Archief catalog number: 812154 Description (Dutch): Gezicht op de Johan de Wittschool (Beethovenplein 2) te Utrecht.
Topics: Huis, Eigendom, Woongebied
Atari ST Das Grosse GFA Basic 3.0 Buch einschließlich alle BASIC-Versionen und Compiler DAS STEHT DRIN: Endlich gibt es GFA V3.0! Zu diesem umfangreichen BASIC gehört auch ein umfangreiches Buch, in dem detailliert jeder Befehl behandelt wird. Dabei liefert es keine nackte Befehlsübersicht, sondern wirklich brauchbares Material in Hülle und Fülle. Anhand zahlreicher Beispielprogramme lernen Sie dieses leistungsfähige BASIC spielend zu beherrschen. Aus dem Inhalt: Das...
Topics: ATARI ST, GFA-BASIC 3.0, programming, german
Dal-Ace - Dallas Atari Computer Enthusiasts newsletter, August, 1988, Volume 9, Number 8.
Topics: Dal-Ace, Dallas, Atari, Computer, Enthusiasts, newsletter, 8-bit, 400, 800, 1200XL, 800XL, 130XE,...
Topic: August 1988
Source: Maryland Horse Breeders Association
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198
Aug 1, 1988
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Aug 1, 1988
by
Zheng, Chingf
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This paper discusses the reliability of the flow pattern obtained with the surface oil flow technique in detail. It successfully introduces a mathematical method to determine the 3-D coordinates of a surface point based on a single photograph. The flow separation positions of the classical plate and blunt cone model were calculated. The results indicate that in most cases the surface oil flow technique can be applied not only as a qualitative but also a quantitative experimental technique.
Topics: COMPUTATION, HYPERSONIC SPEED, JET FLOW, NUMERICAL ANALYSIS, PLUMES, AXISYMMETRIC FLOW, SHEAR...
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Aug 1, 1988
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Aug 1, 1988
by
TAKEI, T.; TANIGUCHI, M.; FUKUSHIMA, H.; YAMAGUCHI, Y.; SHINOZUKA, M.; SEIKOHSHA, K. K. SUW
texts
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THE RECORDING MEDIA CONSIST OF MORE THAN OR ONE COLORING LAYER AND A LAYER CONTAINING A FLAME RETARDANT TO ENSURE NONCOMBUSTIBILITY AND GOOD THERMAL TRANSFER. THUS, A PET FILM WAS COATED ON A SIDE WITH A COMPOUND CONTAINING VYLON 290 (POLYESTER RESIN), AFR-1021 (DECABROMODIPHENYL OXIDE) 8 AND POLYSAFE 60 (SB OXIDE), AND COATED ON THE OTHER SIDE WITH A COMPOUND CONTAINING CARNAUBA WAX, HNP-9 (PARAFFIN WAX), EV-410 (ETHYLENE-VINYL ACETATE COPOLYMER), AND CU PHTHALOCYANINE TO GIVE A THERMAL...
Topics: J-97 ENGINE, LIFT AUGMENTATION, MODELS, STATIC TESTS, V/STOL AIRCRAFT, GROUND EFFECT...
NG Namco Community Magazine (Monthly Issue 22) - August 1988 scanned in at 600DPI with a Fujitsu fi-7460. Both PDF files are OCR'd and have been leveled. The one labeled (Searchable) was OCR'd with Searchable Text in Adobe Acrobat. This compresses the images to make the overall file smaller but has lower quality than the PDF without (Searchable) in the file name. RAW untouched images are included in separate ZIP file.
Topics: NG, Namco Community Magazine, Namco, Magazine, 600DPI, RAW, Scans, VGSC, Gaming Alexandria
970
970
Aug 1, 1988
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Aug 1, 1988
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Die Modellbau heute, kurz mbh, war eine Monatszeitschrift der GST, die sich mit allen Facetten des Modellbau beschäftigte. Die erste Ausgabe erschien im Januar 1970, die letzte Ausgabe im September 1993. Herausgeber war der Militärverlag der DDR. The Modellbau heute, in short mbh, was a monthly magazine of the GST, which dealt with all facets of model making. The first issue appeared in January 1970, the last issue in September 1993. Publisher was the military publishing house of the GDR.
Topics: modellbau heute, model, magazine, journal, gst, mbh, modellbau
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Aug 1, 1988
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Aug 1, 1988
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Die Modellbau heute, kurz mbh, war eine Monatszeitschrift der GST, die sich mit allen Facetten des Modellbau beschäftigte. Die erste Ausgabe erschien im Januar 1970, die letzte Ausgabe im September 1993. Herausgeber war der Militärverlag der DDR. The Modellbau heute, in short mbh, was a monthly magazine of the GST, which dealt with all facets of model making. The first issue appeared in January 1970, the last issue in September 1993. Publisher was the military publishing house of the GDR.
Topics: modellbau heute, model, magazine, journal, gst, mbh, modellbau
Commander Hussain Anwari with Muj around the Dead bodies of martyred Muj in Sanglakh District of Maidan Wardak Province.
Topics: Afghanistan, amrc, Afghan Media Resource Center
Journal of ancient and medieval coinage. Vol. 2, no. 8, August 1988.
Topic: Numismatics
The Data Management System network is a complex and important part of manned space platforms. Its efficient operation is vital to crew, subsystems and experiments. AI is being considered to aid in the initial design of the network and to augment the management of its operation. The Intelligent Resource Management for Local Area Networks (IRMA-LAN) project is concerned with the application of AI techniques to network configuration and management. A network simulation was constructed employing...
Topics: NASA Technical Reports Server (NTRS), ARTIFICIAL INTELLIGENCE, CONFIGURATION MANAGEMENT, DATA BASE...
Research on the synchronous response modelling and control of an advanced Annular Momentun Control Device (AMCD) used to control the attitude of a spacecraft is described. For the flexible rotor AMCD, two sources of synchronous vibrations were identified. One source, which corresponds to the mass unbalance problem of rigid rotors suspended in conventional bearings, is caused by measurement errors of the rotor center of mass position. The other sources of synchronous vibrations is misalignment...
Topics: NASA Technical Reports Server (NTRS), ANNULAR SUSPENSION AND POINTING SYSTEM, ATTITUDE CONTROL,...
Some recent developments in acceleration of convergence methods for vector sequences are reviewed. The methods considered are the minimal polynomial extrapolation, the reduced rank extrapolation, and the modified minimal polynomial extrapolation. The vector sequences to be accelerated are those that are obtained from the iterative solution of linear or nonlinear systems of equations. The convergence and stability properties of these methods as well as different ways of numerical implementation...
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, CONVERGENCE, EXTRAPOLATION,...
The objective of the advanced ascent guidance study was to investigate guidance concepts which could contribute to increased autonomy during ascent operations in a winged boost vehicle such as the proposed Shuttle II. The guidance scheme was required to yield near a full-optimal ascent in the presence of vehicle system and environmental dispersions. The study included consideration of trajectory shaping issues, trajectory design, closed loop and predictive adaptive guidance techniques and...
Topics: NASA Technical Reports Server (NTRS), AEROSPACE PLANES, ASCENT PROPULSION SYSTEMS, ASCENT...
Automation flow field zoning in two dimensions is an important step towards easing the three-dimensional grid generation bottleneck in computational fluid dynamics. A knowledge based approach works well, but certain aspects of flow field zoning make the use of such an approach challenging. A knowledge based flow field zoner, called EZGrid, was implemented and tested on representative two-dimensional aerodynamic configurations. Results are shown which illustrate the way in which EZGrid...
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, COMPUTATIONAL GRIDS, FLOW...
Recent developments are reviewed in two major areas of structural sensitivity analysis: sensitivity of static and transient response; and sensitivity of vibration and buckling eigenproblems. Recent developments from the standpoint of computational cost, accuracy, and ease of implementation are presented. In the area of static response, current interest is focused on sensitivity to shape variation and sensitivity of nonlinear response. Two general approaches are used for computing sensitivities:...
Topics: NASA Technical Reports Server (NTRS), DYNAMIC STRUCTURAL ANALYSIS, NONLINEAR SYSTEMS, SENSITIVITY,...
A Propagation Information Center is in the process of being established at the University of Colorado with connections to NAPEX and to the NASA program at Colodado University (CU) for Interdisciplinary Research in Telecommunications Policy and Technology Issues. The Propagation Information Center was conceived as a response to several items in the Science Review of the NASA Propagation Program carried out in September of 1986 by a distinguished panel of experts. The program for the Center is...
Topics: NASA Technical Reports Server (NTRS), INFORMATION SYSTEMS, RADIO TRANSMISSION, WAVE PROPAGATION,...
A medium-size Beacon Receiving System for reception and processing of the B1 (20 GHz) and B2 (30 GHz) beacons from Olympus has been developed. Integration of B1 and B2 receiving equipment into one system using one antenna and a common computer for control and data processing provides the advantages of a compact configuration and synchronization of the two receiver chains. Range for co-polar signal attenuation meaurement is about 30 dB for both beacons, increasing to 40 dB for B2 if the...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC ATTENUATION, AUTOMATIC CONTROL, BEACONS,...
The progress and accomplishments in the developmet of the Fourth Edition of the NASA Propagation Effects Handbook for Satellite Systems Design, for frequencies 10 to 100 GHz, NASA Reference Publication 1082(04), dated May 1988, prepared by Westighouse Electric Corporation for the Jet Propulsion Laboratory are discussed.
Topics: NASA Technical Reports Server (NTRS), COMMUNICATION SATELLITES, EARTH TERMINALS, HANDBOOKS,...
In this effort are described cumulative rain rate distributions for a network of nine tipping bucket rain gauge systems located in the mid-Atlantic coast region in the vicinity of the NASA Wallops Flight Facility, Wallops Island, Virginia. The rain gauges are situated within a gridded region of dimensions of 47 km east-west by 70 km north-south. Distributions are presented for the individual site measurements and the network average for the year period June 1, 1986 through May 31, 1987. A...
Topics: NASA Technical Reports Server (NTRS), RADIO FREQUENCY INTERFERENCE, RAIN, RAIN GAGES, SPACECRAFT...
The theory of anisotropic elasticity was used to evaluate the anisotropic stress concentration factors of a composite laminated plate containing a small circular hole. This advanced composite was used to manufacture the X-29A forward-swept wing. It was found for composite material, that the anisotropic stress concentration is no longer a constant, and that the locations of maximum tangential stress points could shift by changing the fiber orientation with respect to the loading axis. The...
Topics: NASA Technical Reports Server (NTRS), FIBER COMPOSITES, HOLES (MECHANICS), MATHEMATICAL MODELS,...
The high powered 12.6 cm wavelength radar on the 1000-ft Arecibo reflector is utilized for a number of solar system studies. Chief among these are: (1) surface reflectivity mapping of Venus, Mercury and the Moon. Resolutions achievable on Venus are less than 1.5 km over some areas, for Mercury about 30 km and for the Moon 200 m at present, (2) high time resolution ranging measurements to the surfaces of the terrestrial planets. These measurements are used to obtain profiles and scattering...
Topics: NASA Technical Reports Server (NTRS), ASTEROIDS, DEIMOS, IO, JUPITER SATELLITES, MARS SURFACE,...
Some populations of objects in the solar system are still poorly known, and the long-range goal of this program is to improve that situation. For instance, the statistics of Trojan asteroids are uncertain, while previous serveying indicates there is an appreciable systematic difference between the L-4 and L-5 regions, which is hard to explain. Researchers are developing for this goal a new technique of sky surveillance, namely scanning with a charge coupled device (CCD). With its quantum...
Topics: NASA Technical Reports Server (NTRS), ASTEROIDS, ASTROMETRY, CHARGE COUPLED DEVICES, COMETS,...
This task supports IR observations of the outer planet satellites. These data provide vital information about the thermophysical properties of satellite surfaces, including internal heat sources for Io. Observations include both broad and narrow band measurementsin the 2 to 20 micrometer spectral range. The program in the last year has aimed at obtaining lonitude coverage on Io to establish stability of hot spot patterns previously reported. Several runs produced the most complete data set for...
Topics: NASA Technical Reports Server (NTRS), HEAT SOURCES, INFRARED ASTRONOMY, IO, THERMAL ANALYSIS,...
The purpose of this task is to support asteroid research and the operation of an Asteroid Team within the Earth and Space Sciences Division at the Jet Propulsion Laboratory (JPL). The Asteroid Team carries out original research on asteroids in order to discover, better characterize and define asteroid properties. This information is needed for the planning and design of NASA asteroid flyby and rendezvous missions. The asteroid Team also provides scientific and technical advice to NASA and JPL...
Topics: NASA Technical Reports Server (NTRS), ASTEROIDS, ASTRONOMICAL PHOTOMETRY, CHEMICAL COMPOSITION,...
With the ever increasing level of automation of astronomical telescopes the benefits and feasibility of automated planning and scheduling are becoming more apparent. Improved efficiency and increased overall telescope utilization are the most obvious goals. Automated scheduling at some level has been done for several satellite observatories, but the requirements on these systems were much less stringent than on modern ground or satellite observatories. The scheduling problem is particularly...
Topics: NASA Technical Reports Server (NTRS), ARTIFICIAL INTELLIGENCE, COMPUTER PROGRAMS, HUBBLE SPACE...
Reliable broadcast protocols are important tools in distributed and fault-tolerant programming. They are useful for sharing information and for maintaining replicated data in a distributed system. However, a wide range of such protocols has been proposed. These protocols differ in their fault tolerance and delivery ordering characteristics. There is a tradeoff between the cost of a broadcast protocol and how much ordering it provides. It is, therefore, desirable to employ protocols that support...
Topics: NASA Technical Reports Server (NTRS), BROADCASTING, COMPUTER PROGRAMMING, DATA SYSTEMS, DISTRIBUTED...
This thesis reviews the technique established to clear channels in the Power Spectral Estimate by applying linear combinations of well known window functions to the autocorrelation function. The need for windowing the auto correlation function is due to the fact that the true auto correlation is not generally used to obtain the Power Spectral Estimate. When applied, the windows serve to reduce the effect that modifies the auto correlation by truncating the data and possibly the autocorrelation...
Topics: NASA Technical Reports Server (NTRS), AUTOCORRELATION, DATA CORRELATION, MEASURING INSTRUMENTS,...
Flight testing the X-29A forward-swept wing aircraft has required development of new flight test techniques to accomplish subcritical extrapolations to the actual structural divergence dynamic pressure of the aircraft. This paper provides current experience related to applying these techniques to analysis of flight data from the forward-swept wing in order to assess the applicability of these techniques to flight test data. The measurements required, maneuvers flown, and flight test conditions...
Topics: NASA Technical Reports Server (NTRS), DIVERGENCE, DYNAMIC STRUCTURAL ANALYSIS, FLIGHT ENVELOPES,...
The theory of anisotropic elasticity was used to evaluate the anisotropic stress concentration factors of a composite laminated plate containing a small circular hole. This advanced composite material was used to manufacture the X-29A forward swept wing. Observe that the usual isotropic material stress concentration factor is three. However, for composite material, it was found that the anisotropic stress concentration factor is no longer constant, and that the locations of maximum tangential...
Topics: NASA Technical Reports Server (NTRS), ANISOTROPY, COMPOSITE MATERIALS, HOLE DISTRIBUTION...
Acoustic data from a test of a 40 percent model MBB BO-105 helicopter main rotor are scaled to equivalent full-scale flyover cases. The test was conducted in the anechoic open test section of the German-Dutch Windtunnel (DNW). The measured data are in the form of acoustic pressure time histories and spectra from two out-of-flow microphones underneath and foward of the model. These are scaled to correspond to measurements made at locations 150 m below the flight path of a full-scale rotor. For...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT NOISE, BLADE SLAP NOISE, BO-105 HELICOPTER, ROTARY...
Neutron total cross sections are represented for Li to Pu targets at energies above 0.1 MeV and less than 100 MeV using a modified nuclear Ramsauer formalism. The formalism is derived for energies above 100 MeV by fitting theoretical cross sections. Neutron absorption cross sections are represented by analytic expressions of similar form, but shape resonance phenomena of the Ramsauer effect is not present. Elastic differential cross sections are given as a renormalized impulse approximation....
Topics: NASA Technical Reports Server (NTRS), ABSORPTION CROSS SECTIONS, DATA BASES, ELEMENTARY PARTICLE...
The response of the Space Infrared Telescope Facility's attitude control system to a nod command is studied under a wide variety of conditions. Several engineering issues are explored: the effects of variations in the structural model, relocation of sensors and actuators, the influence of the fine guidance sensor sampling period, resolution and noise on the system response, torque and rate integrating gyro noise and disturbances. Simulation results using control moment gyros and reaction wheels...
Topics: NASA Technical Reports Server (NTRS), ATTITUDE CONTROL, CONTROL MOMENT GYROSCOPES, REACTION WHEELS,...
The limitation of keeping two plates identical is removed and the vibrational power input and output are evaluated for different area ratios, plate thickness ratios, and for different values of the structural damping loss factor for the source plate (plate with excitation) and the receiver plate. In performing this parametric analysis, the source plate characteristics are kept constant. The purpose of this parametric analysis is to be able to determine the most critical parameters that...
Topics: NASA Technical Reports Server (NTRS), DAMPING, DYNAMIC STRUCTURAL ANALYSIS, PLATES (STRUCTURAL...
This paper describes how a formal manufacturing environment, as defined by the American Production & Inventory Control Society (APICS), compares to modern shipbuilding techniques. Formal manufacturing, through a product based build strategy, provides a framework for integrating contract scheduling, design development, material purchasing, inventory control, production capacity planning and production control. An understanding of formal manufacturing provides a foundation for understanding...
Topics: DTIC Archive, Powell, Paul C, BATH IRON WORKS CORP ME, *SHIPBUILDING, *MANAGEMENT ENGINEERING,...
An expansion of the determinant of any matrix in terms of row sums and off-diagonal entries is given and used to obtain expressions for the coefficients of the characteristic polynomial of stochastic matrices.
Topics: DTIC Archive, Delyon, B, MASSACHUSETTS INST OF TECH CAMBRIDGE LAB FOR INFORMATION AND DECISION...
This document summarizes the compilation and evaluation of existing international standards for the design of marine windows. In addition, general industrial and architectural design standards were investigated and related literature reviewed for information which might be applicable for use in the design of the large windows. A technical analysis was performed to determine the basis for the design criteria in the existing standards and an evaluation made on the compatibility of this data with...
Topics: DTIC Archive, Ingram, Thomas J, ABS WORLDWIDE TECHNICAL SERVICES INC PARAMUS NJ GOVERNMENT SERVICES...
This Technical Note reports on a test designed to obtain pilot performance subjective pilot data on the Helicopter Visual Segment Approach Lighting System (HALS). Results identify the performance measures which correlate with the pilot's ability to visually acquire a HALS equipped heliport. Conclusions state that HALS can support existing minima to heliports. Pilots reported unacceptable Cooper-Harper ratings for rate of closure and workload without HALS.
Topics: DTIC Archive, Billmann, Barry R, FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ,...
This dissertation presents the results of a comprehensive investigation into the effects of the measurement configuration on the testing of aircraft with simulated lightning. An extensive series of experiments were carried out to characterize the effects of the configuration on the test results. The simulations were carried out using a simplified Lightning Test Object. Extensive measurements were taken using the swept frequency continuous wave, current injection, and shock-excitation methods...
Topics: DTIC Archive, Jost, Randy J, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH, *METEOROLOGY,...
MANPRINT refers to the comprehensive management and technical effort to assure total system effectiveness by constructive integration into material development and acquisition all relevant information concerning the MANPRINT domains of Manpower, Personnel, Training, Human Factors Engineering, System Safety, and Health Hazard Assessment. Although the MANPRINT process has attained many of its objectives in recent materiel procurements, there remains insufficient integration of MANPRINT factors...
Topics: DTIC Archive, Thurmond, Paul E, AUTOMATION RESEARCH SYSTEMS LTD ALEXANDRIA VA, *REQUIREMENTS,...
In a distributed system using message logging and checkpointing to provide fault tolerance, there is always a unique maximum recoverable system state, regardless of the message logging protocol used. The proof of this relies on the observation that the set of system states that have occurred during any single execution of a system forms a lattice, with the sets of consistent and recoverable system states as sublattices. The maximum recoverable system state never decreases, and if all messages...
Topics: DTIC Archive, Johnson, David B, RICE UNIV HOUSTON TX, *MESSAGE PROCESSING, *INFORMATION RETRIEVAL,...
This report contains translations of articles and/or broadcasts on Western Europe. Titles include: Teachers' Strike Chronicled; Potential Leaders in Postelection Carlsson Government Discussed; Chemical Weapons Considered Significant Defense Factor; Jankowitsch on Current, Future Ties to EC; Business Magazine Views Parliament's Economic Agenda; Firm Will Build in USSR; and others
Topics: DTIC Archive, JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA, *POLITICAL SCIENCE, *ECONOMICS,...
This report contains foreign media information from China on issues related to international politics, economics, national affairs policy, finance, banking, commerce, foreign trade, investment, and transportation.
Topics: DTIC Archive, JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA, *INTERNATIONAL POLITICS,...
To accomplish wind tunnel test programs in the Aerospace Flight Dynamics Wind Tunnels in an efficient and timely manner and to maximize test information return, it is imperative that adequate pretest planning be performed. This document has been prepared to inform the test User and Sponsor of information required to conduct a test program and the procedures followed during test conduct. A chart is presented which shows the progression of activities involved in conducting a test program. The...
Topics: DTIC Archive, ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFS TN, *WIND TUNNEL TESTS, *RESEARCH...
This research is limited to the problem of assessing a pilot's workload while flying an aircraft. The intent is to develop and validate a mathematical model which predicts pilot workload. This effort will show the feasibility of such a model and show that the model's predictions relate reasonably well to measured workload levels. This study focuses on pilot workload in a single-seat, fighter aircraft. While the methods employed are generally applicable to other human-machine systems, it is not...
Topics: DTIC Archive, Schuppe, Thomas F, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH, *MATHEMATICAL...
A new classificational scheme is presented which is consistent with Flynn's taxonomy but is more expressive. The crucial idea is to recognize that a reference stream is composed of both values and addresses; their treatment exposes critical features of an architecture. This insight, together with the accompanying formal mechanism built on top of it, enables a large variety of recently developed (since Flynn's work) machines to be distinguished, including VLIW, multigauage, systolic arrays, and...
Topics: DTIC Archive, Snyder, Lawrence, WASHINGTON UNIV SEATTLE DEPT OF COMPUTER SCIENCE, *COMPUTERS,...
Cognitive and Neural Sciences programs develop fundamental knowledge about human capabilities and performance characteristics which guide Navy and Marine Corps efforts to improve personnel assessments for selection and classification, training, equipment and system designs for human operation and maintenance, One goal is to provide scientific underpinning for more accurate prediction and enhancement of human performance in training and operational environments. A second goal is to understand...
Topics: DTIC Archive, Vaughan, Willard S, OFFICE OF THE CHIEF OF NAVAL RESEARCH ARLINGTON VA, *LEARNING,...
