Search the Planetary Science Decadal Survey collection: Advanced Search
28,824
29K
Jun 30, 1964
06/64
by
NON
texts
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Independent Tracking Coordination Program - trigonometric tables for calculating coordinates of satellites
Topics: COORDINATES, TRACKING SYSTEM, TRIGONOMETRY, COORDINATION, MATHEMATICAL TABLES, SATELLITE TRACKING,...
31,410
31K
Jul 1, 1989
07/89
by
Wolverton, B. C.; Douglas, Willard L.; Bounds, Keit
texts
eye 31,410
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Previously, preliminary data on the ability of a group of common indoor plants to remove organic chemical from indoor air was presented. The group of plants chosen for this study was determined by joint agreement between NASA and the Associated Landscape Contractors of America. The chemicals chosen for study were benzene, trichloroethylene, and formaldehyde. The results show that plants can play a major role in removal of organic chemicals from indoor air.
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Topics: ARTIFICIAL INTELLIGENCE, FUZZY SETS, FUZZY SYSTEMS, NEURAL NETS, SET THEORY, DYNAMICAL SYSTEMS,...
5,419
5.4K
Nov 2, 1990
11/90
by
Ke, Min; Ali, Mooni
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Transformation of data into knowledge through conceptual induction has been the focus of our research described in this paper. We have developed a Machine Learning System (MLS) to analyze the rocket engine simulation data. MLS can provide to its users fault analysis, characteristics, and conceptual descriptions of faults, and the relationships of attributes and sensors. All the results are critically important in identifying faults.
Topics: DYNAMIC LOADS, DIMENSIONAL ANALYSIS, FAILURE MODES, LOAD DISTRIBUTION (FORCES), STRAIN...
18,075
18K
Jun 1, 1997
06/97
by
Walter, Neil A.; Scialdone, John J
texts
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Outgassing data, derived from tests at 398 K (125 C) for 24 hours in a vacuum as per ASTM E 595-84, have been compiled for numerous materials for spacecraft use. The data presented are the total mass loss (TML) and the collected volatile condensable materials (CVCM). The various materials are compiled by likely usage and alphabetically.
Topics: AMINO ACIDS, VEGETATION GROWTH, POTATOES, SUBSTITUTES, PROTEINS, CALMODULIN
2,557
2.6K
Dec 15, 1967
12/67
by
Jagow, R. B
texts
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Methane, methanol, glycerol, and hydrocarbons for microbial life support systems on extended space missions, animal links in closed system, use of wastes, and chemical synthesis of food
Topics: HYDROCARBONS, HUMAN WASTES, MICROBIOLOGY, MICROORGANISMS, NUTRIENTS, SPACE MISSIONS, SPACECRAFT...
5,934
5.9K
Aug 1, 1975
08/75
by
Tsiolkovskiy, K. E
texts
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A classical, comprehensive collection of theoretical studies on interplanetary space travel, jet propulsion, and rocket technology is presented. Topics treated are: (1) escape velocity; (2) trajectories; (3) design considerations; (4) fuels; (5) food supplies and spacecraft environment during spaceflight; and (6) the general mechanics of spaceflight.
Topics: COMBUSTION CHAMBERS, EXHAUST GASES, POLLUTION CONTROL, AIR POLLUTION, DESIGN ANALYSIS
8,486
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A theoretical analysis of the parameters involved in spacecraft design and propulsion and the successful completion of space missions is presented. Various types of rockets and their specialized application are described. The physiological effects of space flight are discussed. The requirements for fuel, specific impulse, and energy considerations are included.
Topics: BOUNDARY LAYER SEPARATION, DIFFUSERS, NONUNIFORM FLOW, SEPARATED FLOW, PRESSURE GRADIENTS, VELOCITY...
5,891
5.9K
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Volume 2 contains data resulting from surveys of 61 military and civilian populations of both sexes from the U.S., Europe, and Asia. Some 295 measured variables are defined and illustrated.
Topics: ANTHROPOMETRY, SIZE DETERMINATION, SPACECRAFT DESIGN, SPACECRAFT ENVIRONMENTS, BODY SIZE (BIOLOGY),...
4,193
4.2K
Dec 15, 1959
12/59
by
NON
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No Abstract Available
Topics: APOLLO PROJECT, COMMAND SERVICE MODULES, LUNAR MODULE, MISSION PLANNING, SPACECRAFT DESIGN, SPACE...
7,466
7.5K
2004
2004
by
Dick, Steven J.; Strick, James E
texts
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In the opening weeks of 1998 a news article in the British journal Nature reported that NASA was about to enter biology in a big way. A ''virtual'' Astrobiology Institute was gearing up for business, and NASA administrator Dan Goldin told his external advisory council that he would like to see spending on the new institute eventually reach 100 million per year. ''You just wait for the screaming from the physical scientists (when that happens),'' Goldin was quoted as saying. Nevertheless, by the...
Topics: CHONDRULE, COOLING, HEATING, PETROGRAPHY, NEBULAE, OLIVINE, PLAGIOCLASE, PYROXENES, METEORITIC...
2,231
2.2K
Sep 1, 1973
09/73
by
Davis, S. J.; Wisniewski, J. S
texts
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No Abstract Available
Topics: MARS PROBES, THRUST AUGMENTATION, UNMANNED SPACECRAFT, DECELERATION, PAYLOADS, REENTRY
10,672
11K
texts
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All the basic areas of anthropometry and its applications to the design of clothing, equipment, and workspaces for manned space flight are presented.
Topics: CANCER, NEOPLASMS, RADIOBIOLOGY, TUMORS, CONFERENCES, HYPERTHERMIA, RADIATION THERAPY, RADIO...
7,688
7.7K
Jun 1, 1979
06/79
by
Brennan, P. J.; Kroliczek, E. J
texts
eye 7,688
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No Abstract Available
Topics: HYDROGEN OXYGEN ENGINES, TURBOROCKET ENGINES, ORBIT TRANSFER VEHICLES, ROCKET ENGINE DESIGN,...
3,774
3.8K
Sep 20, 1969
09/69
by
NON
texts
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No Abstract Available
Topics: COMMUNICATION NETWORKS, RELIABILITY ENGINEERING, TOPOLOGY, FAILURE ANALYSIS, FAULT TREES, GRAPH...
5,976
6.0K
1970
1970
by
Douglas, F. J
texts
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Digital computer programs for analysis of large complex structures applied to NASTRAN project
Topics: EARTH IONOSPHERE, NONLINEARITY, PHASE VELOCITY, PLASMAS (PHYSICS), WAVE ATTENUATION, ELECTRIC...
4,985
5.0K
texts
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The AIAA/NASA Conference on Intelligent Robotics in Field, Factory, Service, and Space (CIRFFSS '94) was originally proposed because of the strong belief that America's problems of global economic competitiveness and job creation and preservations can partly be solved by the use of intelligent robotics, which are also required for human space exploration missions. Individual sessions addressed the following topics: (1) vision systems integration and architecture; (2) selective perception and...
Topics: COMPUTER NETWORKS, CENTRAL PROCESSING UNITS, RESEARCH AND DEVELOPMENT, COMPUTER SYSTEMS DESIGN,...
8,721
8.7K
1966
1966
by
Gorlin, S. M.; Slezinger, I. I
texts
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Wind tunnels for measuring aerodynamic characteristics
Topics: AERODYNAMIC CHARACTERISTICS, WIND TUNNELS, AERODYNAMIC CHARACTERISTICS, WIND TUNNEL
7,413
7.4K
May 1, 1989
05/89
by
Scholz, A. L.; Byrd, R. J
texts
eye 7,413
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No Abstract Available
Topics: FLUID MANAGEMENT, RETRAINING, SIMULATION, THRUST REVERSAL, VAPORS, GRAVITATIONAL EFFECTS, LIQUID...
2,436
2.4K
1988
1988
by
Hart, Sandra G.; Staveland, Lowell E
texts
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The results of a multi-year research program to identify the factors associated with variations in subjective workload within and between different types of tasks are reviewed. Subjective evaluations of 10 workload-related factors were obtained from 16 different experiments. The experimental tasks included simple cognitive and manual control tasks, complex laboratory and supervisory control tasks, and aircraft simulation. Task, behavior, and subject-related correlates of subjective workload...
Topics: OXYGEN, MATHEMATICAL MODELS, STELLAR ENVELOPES, WATER, WATER VAPOR, INFRARED ASTRONOMY,...
3,744
3.7K
1972
1972
by
Safronov, V. S
texts
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The physicomechanical aspects of the emergence of the planets are discussed, based on the concept of accretion from solid bodies and particles which, together with the gases, made up the protoplanetary cloud enveloping the sun in the early phases of its development. The idea of accretion was extensively developed in Shmidt's theory and later in the physicochemical studies of meteorites carried out by Urey and others. The evolution of the gas-dust protoplanetary cloud and the formation of a...
Topics: ADAPTIVE CONTROL, ALGORITHMS, AUTOMATIC FLIGHT CONTROL, DIGITAL COMPUTERS, ONBOARD EQUIPMENT,...
5,030
5.0K
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This publication contains extended abstracts of papers presented at the Nineteenth International Laser Radar Conference, held at Annapolis, Maryland, July 6-10, 1998; 260 papers were presented in both oral and poster sessions. The topics of the conference sessions were Aerosol Clouds, Multiple Scattering; Tropospheric Profiling; Stratospheric/Mesospheric Profiling; Wind Profiling; New Lidar Technology and Techniques; Lidar Applications, including Altimetry and Marine; Space and Future Lidar;...
Topics: X-15 AIRCRAFT, PILOT TRAINING, AIRSPEED, AERODYNAMIC CHARACTERISTICS, ANGLE OF ATTACK, LIFT DRAG...
3,585
3.6K
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The NASA SBIR Composite List of Projects, 1983 to 1989, includes all projects that have been selected for support by the Small Business Innovation Research (SBIR) Program of NASA. The list describes 1232 Phase 1 and 510 Phase 2 contracts that had been awarded or were in negotiation for award in August 1990. The main body is organized alphabetically by name of the small businesses. Four indexes cross-reference the list. The objective of this listing is to provide information about the SBIR...
Topics: ACTS, RADIO TRANSMISSION, RADIO WAVES, WAVE PROPAGATION, CONFERENCES, EXPERIMENT DESIGN, HARDWARE,...
1,570
1.6K
Jun 1, 1998
06/98
by
Krist, Sherrie L.; Biedron, Robert T.; Rumsey, Christopher L
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This document is the User's Manual for the CFL3D computer code, a thin-layer Reynolds-averaged Navier-Stokes flow solver for structured multiple-zone grids. Descriptions of the code's input parameters, non-dimensionalizations, file formats, boundary conditions, and equations are included. Sample 2-D and 3-D test cases are also described, and many helpful hints for using the code are provided.
Topics: NITRIC OXIDE, CARDIOVASCULAR SYSTEM, MOLECULES, ANTIDIURETICS, BARORECEPTORS, DEHYDRATION, DRUGS,...
5,882
5.9K
Nov 1, 1970
11/70
by
Savin, G. N
texts
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Stress concentration around holes and fissures including stress-strain diagrams - bibliography
Topics: DEFORMATION, METEORITES, QUARTZ, X RAY DIFFRACTION, IMPACT DAMAGE, ROCKS, SHOCK WAVES
5,330
5.3K
Nov 30, 1966
11/66
by
NON
texts
eye 5,330
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comment 1
No Abstract Available
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Topics: ARTIFICIAL SATELLITES, GRAVITATIONAL FIELDS, PLANETARY ROTATION, SATELLITE PERTURBATION, ORBIT...
4,795
4.8K
texts
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The mandated elimination of CFC'S, Halons, TCA, and other ozone depleting chemicals and specific hazardous materials has required changes and new developments in aerospace materials and processes. The aerospace industry has been involved for several years in providing product substitutions, redesigning entire production processes, and developing new materials that minimize or eliminate damage to the environment. These activities emphasize replacement cleaning solvents and their application,...
Topics: AMINO ACIDS, RADIOACTIVITY, CARBON 14, ETHYL COMPOUNDS, NUCLEOTIDES, ENZYME ACTIVITY, THIOLS,...
5,374
5.4K
May 1, 1982
05/82
by
Leiss, A
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The Scout launch vehicle program, hardware, and systems are reviewed. Scout reliability and quality assurance provisions, procurement, launch sites and facilities, and financial data are also reported.
Topics: COMPUTER PROGRAMMING, LIFE CYCLE COSTS, MISSILES, QUANTITATIVE ANALYSIS, SEMANTICS, COMPUTER...
18,541
19K
Sep 1, 1967
09/67
by
Braverman, A. S.; Grodko, L. N.; Leykand, M. A.; Mil, M. L.; Nekrasov, A. V
texts
eye 18,541
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Rotor aerodynamics in relation to historical and ideal development of helicopters
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Topics: AERODYNAMICS, HELICOPTER DESIGN, HELICOPTERS, HISTORIES, ROTOR AERODYNAMICS, HELICOPTER DESIGN,...
3,013
3.0K
texts
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Programming languages, computer graphics, neural networks, massively parallel computers, SIMD architecture, algorithms, digital terrain models, sort computation, simulation of charged particle transport on the massively parallel processor and image processing are among the topics discussed.
Topics: FLAMMABILITY, HOLDERS, IGNITION, PROPELLANTS, TEST EQUIPMENT, OSCILLOGRAPHS, PRESSURE MEASUREMENT,...
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12K
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In August 1997, NASA sponsored a 3-day workshop to assess the prospects emerging from physics that may eventually lead to creating propulsion breakthroughs -the kind of breakthroughs that could revolutionize space flight and enable human voyages to other star systems. Experiments and theories were discussed regarding the coupling of gravity and electromagnetism, vacuum fluctuation energy, warp drives and wormholes, and superluminal quantum tunneling. Because the propulsion goals are presumably...
Topics: TEST CHAMBERS, AERODYNAMIC CHARACTERISTICS, HOT-WIRE ANEMOMETERS, FLOW DISTRIBUTION, WIND TUNNELS,...
7,327
7.3K
Feb 1, 1963
02/63
by
Boltz, F. W
texts
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Z-function solutions for motion and heating during atmosphere entry from equatorial orbits of rotating planets
Topics: ATMOSPHERIC ENTRY, MOTION, PLANET, REENTRY, Z FUNCTION, EQUATORIAL ORBITS, HEATING, MOTION,...
3,304
3.3K
Sep 1, 1989
09/89
by
Squier, Donal
texts
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No Abstract Available
Topics: COST ANALYSIS, GROUND OPERATIONAL SUPPORT SYSTEM, PROJECT MANAGEMENT, SPACE TRANSPORTATION SYSTEM...
The purpose of this study was to determine the feasibility of a landed mission to Mercury. It was conducted by the JHU/APL Space Department in partnership with Marshall Space Flight Center, Glen Research Center, and Steven Hauck from Case Western Reserve University. This was conducted as a concept maturity level (CML) 3 study focusing on feasibility trades and options for concepts with a goal of determining whether such a mission could be accomplished within a Principal Investigator (PI)-led...
Topics: Mercury, Concept Study, NASA, Lander, Mission, Decadal
4,139
4.1K
Nov 1, 1960
11/60
by
HOHMANN, WALTE
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THIS WORK (ORIGINALLY PUBLISHED IN 1925) CONTRIBUTES TO RECOGNITION OF THE FEASIBILITY OF SPACE TRAVEL. TREATED ARE PROBLEMS ASSOCIATED WITH LEAVING THE EARTH, RETURN TO EARTH, FREE-SPACE FLIGHT, CIRCUM-NAVIGATION OF CELESTIAL OBJECTS, AND LANDING ON OTHER CELESTIAL OBJECTS.
Topics: DIFFUSION THEORY, REACTIVITY, DIFFUSION, SIMULATORS, SHIELDING
1,367
1.4K
Feb 1, 1997
02/97
by
Leutenegger, Scott T.; Edgington, Jeffrey M.; Lopez, Mario A
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In this paper we present the results from an extensive comparison study of three R-tree packing algorithms, including a new easy to implement algorithm. The algorithms are evaluated using both synthetic and actual data from various application domains including VLSI design, GIS (tiger), and computational fluid dynamics. Our studies also consider the impact that various degrees of buffering have on query performance. Experimental results indicate that none of the algorithms is best for all types...
Topics: COMBUSTION, SPRAYERS, COMPUTATIONAL GRIDS, COMBUSTION CHAMBERS, UNSTEADY FLOW, SUBSONIC FLOW,...
5,395
5.4K
texts
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This catalog lists 2311 citations of all NASA Special Publications, NASA Reference Publications, NASA Conference Publications, and NASA Technical Papers that were entered into the NASA scientific and technical database during the decade 1977 through 1986. The entries are grouped by subject category. Indexes of subject terms, personal authors, and NASA report numbers are provided.
Topics: ARCHITECTURE (COMPUTERS), COMPUTER GRAPHICS, COMPUTER PROGRAMS, COMPUTERIZED SIMULATION, DISPLAY...
1,502
1.5K
Apr 1, 1982
04/82
by
Pao, J. L.; Mehrotra, S. C.; Lan, C. E
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A computer code base on an improved vortex filament/vortex core method for predicting aerodynamic characteristics of slender wings with edge vortex separations is developed. The code is applicable to camber wings, straked wings or wings with leading edge vortex flaps at subsonic speeds. The prediction of lifting pressure distribution and the computer time are improved by using a pair of concentrated vortex cores above the wing surface. The main features of this computer program are: (1)...
Topics: FLIGHT SIMULATORS, ROLL, TURNING FLIGHT, VERTICAL ORIENTATION, HORIZON SCANNERS, MOTION PERCEPTION,...
4,274
4.3K
Nov 1, 1976
11/76
by
Essers, I
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A biography is presented of Max Valier, who is credited with popularizing interest in space travel and rocket research in Germany in the 1920's and 1930's. He died in an accident involving the testing of liquid rocket fuel propellants.
Topics: DYNAMIC RESPONSE, FLIGHT SIMULATION, ROTOR AERODYNAMICS, ROTOR BLADES (TURBOMACHINERY), TRANSIENT...
3,639
3.6K
texts
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The Bonner Durchmusterung (BD) is a visual survey of stars in the declination zones 89 deg to -01 deg. This volume contains the data for the declination range 89 deg to 30 deg. The survey, completed by Argelander and his assistants in the years 1852-1861, was performed and the stars cataloged by allowing the telescope to drift along the mean declination of each zone and recording the positions and magnitudes of stars crossing the transit line of each field. The goal of the survey was to obtain...
Topics: BOOSTER ROCKET ENGINES, PRODUCTION, PROVING, SCHEDULES, LIQUID PROPELLANT ROCKET ENGINES, PROJECT...
2,252
2.3K
Jan 29, 1968
01/68
by
NON
texts
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Operating manual for FORTRAN program to predict aerodynamic and heat transfer characteristics of annular and rectangular gas turbine combustors
Topics: FORTRAN, FLOW CHARTS, INLET FLOW, NOZZLE DESIGN, HEAT TRANSFER, MANUALS, SUBROUTINES, AERODYNAMIC...
3,601
3.6K
texts
eye 3,601
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No Abstract Available
Topics: ENGINE TESTS, NONDESTRUCTIVE TESTS, PERFORMANCE, PROPELLANTS, DEGRADATION, MECHANICAL PROPERTIES
6,446
6.4K
Oct 1, 1976
10/76
by
Rauschenbach, H. S
texts
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Twelve chapters discuss the following: historical developments, the environment and its effects, solar cells, solar cell filters and covers, solar cell and other electrical interconnections, blocking and shunt diodes, substrates and deployment mechanisms, material properties, design synthesis and optimization, design analysis, procurement, production and cost aspects, evaluation and test, orbital performance, and illustrative design examples. A comprehensive index permits rapid locating of...
Topics: DIATOMIC MOLECULES, MOLECULAR ROTATION, THREE DIMENSIONAL MODELS, ENERGY TRANSFER, MOLECULAR...
5,788
5.8K
texts
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No Abstract Available
Topics: PROPULSION SYSTEM CONFIGURATIONS, SATURN S-4B STAGE, SPACECRAFT COMPONENTS, CHECKOUT, SATURN 5...
3,200
3.2K
texts
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No Abstract Available
Topics: APOLLO SPACECRAFT, HEAT TRANSFER, SPACECRAFT CONFIGURATIONS, AERODYNAMIC HEATING, RESEARCH...
3,679
3.7K
Nov 14, 1980
11/80
by
NON
texts
eye 3,679
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comment 0
No Abstract Available
Topics: ENGINE DESIGN, STRUCTURAL ANALYSIS, TURBOFAN ENGINES, BYPASSES, COST ANALYSIS, LIFE CYCLE COSTS,...
2,044
2.0K
Mar 1, 1990
03/90
by
Walatka, Pamela P.; Buning, Pieter G.; Pierce, Larry; Elson, Patricia A
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PLOT3D is a computer graphics program designed to visualize the grids and solutions of computational fluid dynamics. Seventy-four functions are available. Versions are available for many systems. PLOT3D can handle multiple grids with a million or more grid points, and can produce varieties of model renderings, such as wireframe or flat shaded. Output from PLOT3D can be used in animation programs. The first part of this manual is a tutorial that takes the reader, keystroke by keystroke, through...
Topics: POWER CONDITIONING, RESOURCE ALLOCATION, VALUE ENGINEERING, SCHEDULING, SOLAR ENERGY CONVERSION,...
1,969
2.0K
Jul 1, 1965
07/65
by
Engelbart, D. C.; English, W. K.; Huddart, B
texts
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Human composition and modification of computer driven cathode ray tube display
Topics: CATHODE RAY TUBES, DISPLAY SYSTEM, COMPUTER PROGRAMS, COMPUTER TECHNIQUES, DISPLAY DEVICES, ON-LINE...
2,596
2.6K
texts
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Following the return to earth on December 2, 1988, of Orbiter OV-104, Atlantis, it was observed that there was substantial Thermal Protection System (TPS) tile damage present on the lower right fuselage and wing. Damage sites were more numerous than on previous flights and conversely, there was almost no damage present on Atlantis' left side. A review team investigated the cause beginning with a detailed inspection of the Atlantis TPS damage, and a review of related inspection reports to...
Topics: EARTH RESOURCES, HYDROLOGY, IMAGE PROCESSING, MINERAL EXPLORATION, OCEANOGRAPHY, PHOTOMAPPING,...
7,588
7.6K
texts
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This bibliography lists 822 reports, articles and other documents introduced into the NASA Scientific and Technical Information System in 1988. Items are selected and grouped according to their usefulness to the manager as manager. Citations are grouped into ten subject categories: human factors and personnel issues; management theory and techniques; industrial management and manufacturing; robotics and expert systems; computers and information management; research and development; economics,...
Topics: ALGORITHMS, KALMAN FILTERS, LEAST SQUARES METHOD, NAVIGATION, POSITION ERRORS, POWER SPECTRA, RADAR...
7,510
7.5K
Jul 1, 1969
07/69
by
Bialous, A. J.; Peters, P. H.; Stone, E. E
texts
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Leakage testing handbook giving fundamentals, theory, methods, detector equipment, and test media
Topics: FOAMS, LIQUID COOLING, ROCKET ENGINES, COOLING SYSTEMS, PERFORMANCE TESTS, SURFACE LAYERS
3,258
3.3K
May 1, 1970
05/70
by
Arbit, H. A.; Clapp, S. D.; Nagai, C. K
texts
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Feasibility of lithium-fluorine-hydrogen propellant combination
Topics: COMETS, METEOROIDS, COSMOLOGY, DISRUPTING, SOLAR SYSTEM
4,463
4.5K
texts
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Information is presented on the most important features of atmospheric radiation such as the quantitative characteristics of molecular absorption and scattering, spectral and angular distributions, and the three-dimensional structure of shortwave and longwave radiation fields. The model of the structure and composition of the atmosphere is described, and the fundamental optical characteristics of absorption and scattering of radiation by the atmosphere are examined. The principles are studied...
Topics: CHEMICAL ENGINEERING, GELS, INORGANIC COMPOUNDS, COST ANALYSIS, PATENT POLICY, SILICON DIOXIDE
Missions to many classes of planetary bodies - asteroids Trojans TNOs dwarf planets - can offer enhanced science return if they target binary or multiple systems.
Near Earth objects (NEOs) are attractive targets for spacecraft missions with the purpose of obtaining greater insight to the nature of the original bodies from which the terrestrial planets formed, without having to visit the Main Belt itself. Greater knowledge of NEOs directly sheds light on the origin and evolution of the asteroid belt, the formation of planets, and the history of the solar system. This report describes a search for NEOs that would be accessible for missions launching in...
Topics: Asteroids, NASA, Decadal, Trajectory Opportunities, Survey, Near Earth Asteroids, NEOs
4,517
4.5K
texts
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The User's Manual is one of four manuals that constitute the documentation for NASTRAN, the other three being the Theoretical Manual, the Programmer's Manual and the Demonstration Problem Manual. Although the User's Manual contains all of the information that is directly associated with the solution of problems with NASTRAN, the user will find it desirable to refer to the other manuals for assistance in the solution of specific user problems. The Theoretical Manual gives an excellent...
Topics: ALGORITHMS, COMPUTERIZED SIMULATION, DYNAMIC RESPONSE, FINITE ELEMENT METHOD, PARTIAL DIFFERENTIAL...
5,052
5.1K
texts
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No Abstract Available
Topics: AEROSPACE INDUSTRY, GOVERNMENT/INDUSTRY RELATIONS, TECHNOLOGY UTILIZATION, AEROSPACE ENGINEERING,...
10,117
10K
Dec 1, 1985
12/85
by
Mcmurtrey, E. L
texts
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This handbook is intended to provide a ready reference for many of the solid and liquid lubricants used in the space industry. Lubricants and lubricant properties are arranged systematically so that designers, engineers, and maintenance personnel can conveniently locate data needed for their work. This handbook is divided into two major parts (A and B). Part A is a compilation of solid lubricant suppliers information on chemical and physical property of data of more than 250 solid lubricants,...
Topics: ARIZONA, GEOCHRONOLOGY, GEOLOGICAL FAULTS, GEOMAGNETISM, ROCK MECHANICS, TECTONICS, MAPPING,...
1,930
1.9K
texts
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Trajectory data for scheduling flights from venus and mars to earth, 1960-2000
Topics: HANDBOOKS, MARS /PLANET/, VENUS, INTERPLANETARY FLIGHT, INTERPLANETARY TRAJECTORIES, MARS (PLANET),...
2,884
2.9K
Dec 1, 1997
12/97
by
Litvin, Faydor L.; Handschub, Robert F
texts
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This book presents recent developments in the theory of gearing and the modifications in gear geometry necessary to improve the conditions of meshing. Highlighted are low-noise gear drives that have a stable contact during meshing and a predesigned parabolic transmission error function that can handle misalignment during operation without sacrificing the low-noise aspects of operation. This book also provides a comprehensive history of the development of the theory of gearing through...
Topics: BRIDGMAN METHOD, SPACE SHUTTLES, TEMPERATURE GRADIENTS, FURNACES, MICROGRAVITY, PAYLOADS, SPACE...
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Nov 30, 1981
11/81
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Sidwell, K. W.; Baruah, P. K.; Bussoletti, J. E
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A comprehensive description of user problem definition for the PAN AIR (Panel Aerodynamics) system is given. The PAN AIR system solves the three dimensional linear integral equations of subsonic and supersonic flow. Influence coefficient methods are used which employ source and doublet panels as boundary surfaces. Both analysis and design boundary conditions can be used. The information needed to use the PAN AIR system is described. The structure and organization of PAN AIR are described,...
Topics: AEROSPACE ENVIRONMENTS, HOLOGRAPHY, LIFE (DURABILITY), MECHANICAL PROPERTIES, PHOTOVOLTAIC CELLS,...
The purpose of the Mars 2018 Sky Crane Capabilities Study was to "explore the full range of science capabilities that could be delivered to the surface of Mars in 2018 by an MSL-derived Sky Crane EDL system" [1]. NASA commissioned the Jet Propulsion Laboratory (JPL) to perform this study. The Planetary Science Decadal Survey Mars Panel was particularly interested in the following science pathways: a surface field geology/astrobiology pathway, a subsurface geology/astrobiology pathway...
Topics: Mars, NASA, Mission Concept Study, Decadal, Sky Crane
6,208
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Manual control is discussed in terms of operator modeling, measurement of human response, mental workload, pilot/operator opinion, effects of motion, aircraft displays, supervisory control, automobile driving, and remote manipulation.
Topics: COMPUTER NETWORKS, COMPUTER SYSTEMS DESIGN, COMPUTER SYSTEMS PERFORMANCE, DATA CONVERSION ROUTINES,...
399
399
2005
2005
by
Patterson-Hine, Ann; Biswas, Gautam; Aaseng, Gordon; Narasimhan, Sriam; Pattipati, Krishn
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System diagnosis is an integral part of any Integrated System Health Management application. Diagnostic applications make use of system information from the design phase, such as safety and mission assurance analysis, failure modes and effects analysis, hazards analysis, functional models, fault propagation models, and testability analysis. In modern process control and equipment monitoring systems, topological and analytic , models of the nominal system, derived from design documents, are also...
Topics: COMPUTATIONAL FLUID DYNAMICS, NAVIER-STOKES EQUATION, FLOW DISTRIBUTION, AFTERBODIES, CONVECTIVE...
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A compilation of 40 technical reports on research conducted by participants in the 1985 NASA/ASEE Summer Faculty Fellowship Program at Marshall Space Flight Center (MSFC) is given. Weibull density functions, reliability analysis, directional solidification, space stations, jet stream, fracture mechanics, composite materials, orbital maneuvering vehicles, stellar winds and gamma ray bursts are among the topics discussed.
Topics: COSMIC DUST, PLANETARY NEBULAE, SPECTROPHOTOMETRY, ASTRONOMICAL SPECTROSCOPY, CARBON, FAR INFRARED...
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No Abstract Available
Topics: BOUNDARY LAYER TRANSITION, VISCOUS FLUIDS, DRAG MEASUREMENT, HYDRODYNAMICS, TURBULENT FLOW,...
3,282
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Almost every year there is at least one technological disaster that highlights the challenge of managing technological risk. On February 1, 2003, the space shuttle Columbia and her crew were lost during reentry into the atmosphere. In the summer of 2003, there was a blackout that left millions of people in the northeast United States without electricity. Forensic analyses, congressional hearings, investigations by scientific boards and panels, and journalistic and academic research have yielded...
Topics: SILICATES, INTERPLANETARY DUST, METEORITES, ABUNDANCE, ALUMINUM OXIDES, INVENTORIES, STARDUST...
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Nov 1, 1970
11/70
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Wilson, J. H
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Planning, development, design, manufacture, and testing for Mariner Mars 1969 project - Vol. 1
Topics: DEEP SPACE INSTRUMENTATION FACILITY, DEEP SPACE NETWORK, INTERPLANETARY SPACECRAFT, MARS 71...
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The Sixth Microgravity Fluid Physics and Transport Phenomena Conference provides the scientific community the opportunity to view the current scope of the Microgravity Fluid Physics and Transport Phenomena Program, current research opportunities, and plans for the near future. The conference focuses not only on fundamental research but also on applications of this knowledge towards enabling future space exploration missions. A whole session dedicated to biological fluid physics shows increased...
Topics: TEMPERATURE MEASUREMENT, LASER INDUCED FLUORESCENCE, SCIENTIFIC VISUALIZATION, BEAMS (RADIATION),...
The National Academy of Science's Decadal Survey (New Frontiers in the Solar System: An Integrated Exploration Strategy, 2003) recommended that NASA develop a medium-class mission to return a comet surface sample to Earth for laboratory analysis. NASA tasked the Applied Physics Laboratory to refine the concepts described in the Decadal Survey. As stated in the task guidelines: The study results will include a pre-phase A fidelity plan to implement the mission concept, evaluating the cost,...
Topics: Comets, NASA, Mission Concept Study, Decadal
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For abstract, see N75-20149.
Topics: COMPOSITE MATERIALS, DIFFRACTION PATTERNS, DISPLACEMENT MEASUREMENT, HOLOGRAPHY, LASERS, CERAMICS,...
481
481
1996
1996
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Chandrasekhara, M. S.; Wilder, M. C.; Carr, L. W
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A novel way of controlling flow separation is reported. The approach involves using an adaptive airfoil geometry that changes its leading edge shape to adjust to the instantaneous flow at high angles of attack such that the flow over it remains attached. In particular, a baseline NACA 0012 airfoil, whose leading edge curvature could be changed dynamically by 400% was tested under quasi-steady compressible flow conditions. A mechanical drive system was used to produce a rounded leading edge to...
Topics: COLLOIDS, PHASE TRANSFORMATIONS, KINETICS, MORPHOLOGY, CRYSTALS, GELS, MICROGRAVITY
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2005
2005
by
Kulkarni, Nilesh; Krishnakumar, Kalmaj
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The objective of this research is to design an intelligent plug-n-play avionics system that provides a reconfigurable platform for supporting the guidance, navigation and control (GN&C) requirements for different elements of the space exploration mission. The focus of this study is to look at the specific requirements for a spacecraft that needs to go from earth to moon and back. In this regard we will identify the different GN&C problems in various phases of flight that need to be...
Topics: FLIGHT CHARACTERISTICS, FLIGHT RECORDERS, DIGITAL DATA, DATA RECORDERS, ALGORITHMS, STATISTICS,...
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This bibliography lists 466 reports, articles, and other documents introduced into the NASA scientific and technical information system in July, 1989. Subject coverage includes: design, construction and testing of aircraft and aircraft engines; aircraft components, equipment and systems; ground support systems; and theoretical and applied aspects of aerodynamics and general fluid dynamics.
Topics: ALGORITHMS, COMPUTER SYSTEMS DESIGN, MULTIPROCESSING (COMPUTERS), SCHEDULING, TIME FUNCTIONS, ERROR...
The National Research Council's Planetary Science Decadal Survey: Primitive Bodies Panel has commissioned NASA's Goddard Space Flight Center (GSFC) with a rapid architecture study conducted under NASA Headquarters leadership. The purpose of the study is to determine whether a mission to orbit the Centaur Object Chiron can be achieved within a New Frontiers cost range with a limited supply of Advanced Stirling Radioisotope Generators (ASRGs). Guidelines include a launch between 2015 and 2025, a...
Topics: Chiron, Orbiter, NASA, Mission Concept Study, Decadal
