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Planetary Science Decadal Survey
Planetary Science Decadal Survey
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NASA Technical Documents
by Wolverton, B. C.; Douglas, Willard L.; Bounds, Keit
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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,...
NASA Technical Documents
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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,...
NASA Technical Documents
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No Abstract Available
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Topics: ARTIFICIAL SATELLITES, GRAVITATIONAL FIELDS, PLANETARY ROTATION, SATELLITE PERTURBATION, ORBIT...
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...
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,...
NASA Technical Documents
by Oberth, H
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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...
NASA Technical Documents
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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...
No Abstract Available
Topics: APOLLO SPACECRAFT, HEAT TRANSFER, SPACECRAFT CONFIGURATIONS, AERODYNAMIC HEATING, RESEARCH...
NASA Technical Documents
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This document presents the postflight trajectory for the Apollo/Saturn 5 AS-506 flight. Included is an analysis of the orbital and powered flight trajectories of the launch vehicle, the free flight trajectories of the expended S-1C and S-2 stages, and the slingshot trajectory of the S-4B/1U. Trajectory dependent parameters are provided in earth-fixed launch site, launch vehicle navigation, and geographic polar coordinate systems. The time history of the trajectory parameters for the launch...
Topics: AEROTHERMODYNAMICS, SPACECRAFT MODULES, SPACECREWS, DESIGN ANALYSIS, ENVIRONMENT EFFECTS, LUNAR...
NASA Technical Documents
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No Abstract Available
Topics: COMMUNICATION NETWORKS, RELIABILITY ENGINEERING, TOPOLOGY, FAILURE ANALYSIS, FAULT TREES, GRAPH...
NASA Technical Documents
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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...
Planetary Science Decadal Survey
by Steven A. Hauck, II, Douglas A. Eng and George J. Tahu
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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
NASA Technical Documents
by Tsiolkovskiy, K. E
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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
Planetary Science Decadal Survey
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The Enceladus Orbiter (EO) mission would explore Saturn's moon Enceladus, investigating the following in order of priority: -The nature of Enceladus's cryovolcanic activity -The internal structure and chemistry of Enceladus -The geology of Enceladus -The interaction of Enceladus with the Saturn system -The surfaces and interiors of Saturn's moons Rhea, Dione and Tethys -Preparation for potential future landing on Enceladus
Topics: Enceladus, NASA, MIssion Concept Study, Decadal
NASA Technical Documents
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AT THE PRELIMINARY AIRCRAFT DESIGN STAGE, THE DESIGN OFFICES RELY SIMULTANEOUSLY ON EXPERIENCE GAINED WITH PREVIOUS PROJECTS, SOPHISTICATED COMPUTATIONS, RESULTS OF TESTS ORDERED FROM LABORATORIES, A WELL INFORMED DOCUMENTATION CENTER, AND THE INTUITIVE FACULTIES OF THE PROJECT OFFICER. ON THE OTHER HAND, THE RESEARCH CENTER MUST FORECAST THE MAIN TRENDS OF AERONAUTICAL TECHNIQUES IN DUE TIME, IN ORDER TO PROVIDE THE GOVERNMENT SERVICES AND THE MANUFACTURERS WITH THE MAXIMUM OF INFORMATION. BUT...
Topics: POSTFLIGHT ANALYSIS, TIROS 7 SATELLITE, CLOUD PHOTOGRAPHY, OPERATIONAL PROBLEMS
Planetary Science Decadal Survey
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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
NASA Technical Documents
by Walter, Neil A.; Scialdone, John J
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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
NASA Technical Documents
by Swansson, E.; Powell, D
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No Abstract Available
Topics: APOLLO SOYUZ TEST PROJECT, MISSION PLANNING, SPACECRAFT CONFIGURATIONS, COMMAND SERVICE MODULES,...
Telemetry and ground support equipment design and developments for Deep Space Network
Topics: FLOW COEFFICIENTS, MOLECULAR FLOW, TURBULENT FLOW, VISCOSITY, TURBULENT BOUNDARY LAYER, VELOCITY...
NASA Technical Documents
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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),...
NASA Technical Documents
by Garza, Frederico R.; Morelli, Eugene A
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Nonlinear six degree-of-freedom simulations for a variety of aircraft were created using MATLAB. Data for aircraft geometry, aerodynamic characteristics, mass / inertia properties, and engine characteristics were obtained from open literature publications documenting wind tunnel experiments and flight tests. Each nonlinear simulation was implemented within a common framework in MATLAB, and includes an interface with another commercially-available program to read pilot inputs and produce a...
Topics: CLOSED ECOLOGICAL SYSTEMS, AEROSPACE MEDICINE, AEROSPACE ENVIRONMENTS, MICROGRAVITY, SPACE...
NASA Technical Documents
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Horn antenna with suppressed sidelobes and equal beamwidth - radiation characteristics of dual- mode conical horn
Topics: BEAMS (RADIATION), HORN ANTENNAS, SIDELOBE REDUCTION, SIDELOBES, HORN ANTENNA, RADIATION, SIDELOBE...
NASA Technical Documents
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No abstract available
Topics: BIOLOGY, MAPPING, OCEANOGRAPHY, PROJECT MANAGEMENT, RESEARCH PROJECTS, COST ANALYSIS, ECONOMICS,...
NASA Technical Documents
by Wei, F. S.; Weisbrich, A. L
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Rsults provide functional relationship between rotor performance, blade vibratory loads and dual control settings and indicate that multicyclic control produced significant reductions in blade flatwise bending moments and blade root actuator control loads. Higher harmonic terms of servo flap deflection were found to be most pronounced in flatwise bending moment, transmission vertical vibration and pitch link vibratory load equations. The existing test hardware represents a satisfactory...
Topics: AEROSPACE ENGINEERING, SYSTEMS ENGINEERING, MANAGEMENT METHODS, NASA PROGRAMS, RESEARCH AND...
NASA Technical Documents
by NON
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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...
Thermodynamic properties of tungsten, molybdenum, titanium, zirconium, niobium, and tantalum metal and compounds
Topics: MOLYBDENUM, ZIRCONIUM, MOLYBDENUM, NIOBIUM, TANTALUM, THERMODYNAMIC PROPERTY, TITANIUM, TUNGSTEN,...
NASA Technical Documents
by NON
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A HANDBOOK COMPILATION OF CHEMICAL AND PHYSICAL PROPERTY TESTS DATA OBTAINED DURING QUALIFICATION AND RECEIVING INSPECTION TESTING OF NONMETALLIC MATERIALS FOR THE VIKING LANDER IS INTRODUCED. DATA COVER THE FOLLOWING MATERIALS: SEALANTS, POTTING COMPOUNDS, LUBRICANTS, PAINTS AND FINISHES, INKS, FILMS, ENCAPSULANTS, ELASTOMERS, STRUCTURAL PLASTICS, ABLATIVES, ADHESIVES, AND ELECTRICAL AND THERMAL INSULATION. THERMOCHEMICAL DATA SHOWING DEGRADATION AS A FUNCTION OF TEMPERATURE, FROM ROOM TO 500...
Topics: APPROACH, FLIGHT SIMULATORS, HEAD-UP DISPLAYS, SHORT TAKEOFF AIRCRAFT, DESCENT, FLIGHT PATHS,...
NASA Technical Documents
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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,...
NASA Technical Documents
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This book is, in essence, sixteen years in the making. First attempted to compile a history of the Soviet space program in 1982 author put together a rough chronology of the main events. A decade later, while living on a couch in a college friend's apartment, he began writing what would be a short history of the Soviet lunar landing program. The first draft was sixty-nine pages long. Late the following year, he decided to expand the topic to handle all early Soviet piloted exploration programs....
Topics: STATISTICAL ANALYSIS, RADIATIVE TRANSFER, SOLAR RADIATION, CLOUD COVER, CLOUDS (METEOROLOGY),...
NASA Technical Documents
by Leontev, U. N.; Vlasov, V. Z
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Theory based on Vlasov general variational method to analyze beams and plates on elastic foundations
Topics: ELASTIC PROPERTIES, FOUNDATIONS, PROBLEM SOLVING, VARIATIONAL PRINCIPLES, VLASOV EQUATIONS,...
NASA Technical Documents
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AERODYNAMICS AND FLIGHT DYNAMICS OF TURBOJET AIRCRAFT
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Topics: ELECTRIC ARCS, ELECTRICAL RESISTIVITY, HIGH TEMPERATURE AIR, THERMAL CONDUCTIVITY, THERMAL PLASMAS,...
NASA Technical Documents
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No Abstract Available
Topics: APOLLO PROJECT, COMMAND SERVICE MODULES, LUNAR MODULE, MISSION PLANNING, SPACECRAFT DESIGN, SPACE...
NASA Technical Documents
by Tverskoi, P. N
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Textbook of meteorology and atmospheric physics
Topics: ATMOSPHERIC PHYSICS, HYDROMETEOROLOGY, METEOROLOGY, TEXTBOOKS, WEATHER, ATMOSPHERE,...
NASA Technical Documents
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
NASA Technical Documents
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This document was originally published in 1997 as a International Space University Master of Space Studies student's project. While the specifics may be a little dated, the results gleaned are still relevant and valid. Johnson Space Center is now abuzz with preparations for the International Space Station. The work on the various systems for the U.S. Habitation Module will begin in 1998. As a prelude, the Flight Crew Support Division perceived the need to take a closer, more critical took at...
Topics: AEROSPACE SYSTEMS, REUSABLE LAUNCH VEHICLES, SPACE TRANSPORTATION SYSTEM, CONTRACTS, SYSTEMS...
Planetary Science Decadal Survey
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The purpose of this study was to determine the feasibility of a Lunar Geophysical Network (LGN) mission to the Moon. It was conducted by Marshall Space Flight Center's, Robotic Lunar Lander Development Project team in partnership with the Johns Hopkins University/Applied Physics Laboratory (JHU/APL). This study was documented based on previous trades, analysis and options for concepts developed by the team over the last 18 months, with a goal of determining whether such a mission could be...
Topics: Lunar Geophysical Network, (LGN), NASA, Mission Concept Study, Decadal, Lunar, Moon
NASA Technical Documents
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Tabulated values of longwave and shortwave radiation fluxes and also cooling and heating rates in the atmosphere for standard atmospheric profiles are presented. The radiation codes used in the Goddard general circulation model were employed for the computations. These results were obtained for an international intercomparison projected called Intercomparison of Radiation Codes in Climate Models (ICRCCM).
Topics: ELECTRON IRRADIATION, POLYMERIC FILMS, RADIATION DOSAGE, SUBSTRATES, THIN PLATES, ELECTRON...
For abstract, see N75-20149.
Topics: COMPOSITE MATERIALS, DIFFRACTION PATTERNS, DISPLACEMENT MEASUREMENT, HOLOGRAPHY, LASERS, CERAMICS,...
NASA Technical Documents
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The effect of interaction between the reaction control system (RCS) jets and the flow over the space shuttle orbiter in the atmosphere was investigated in the NASA Langley 31-inch continuous flow hypersonic tunnel at a nominal Mach number of 10.3 and in the AEDC continuous flow hypersonic tunnel B at a nominal Mach number of 6, using 0.01 and .0125 scale force models with aft RCS nozzles mounted both on the model and on the sting of the force model balance. The data show that RCS nozzle exit...
Topics: BOEING 727 AIRCRAFT, SLIDING, SURFACE PROPERTIES, COEFFICIENT OF FRICTION, RUNWAY CONDITIONS,...
NASA Technical Documents
by Braverman, A. S.; Grodko, L. N.; Leykand, M. A.; Mil, M. L.; Nekrasov, A. V
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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,...
No Abstract Available
Topics: AERONAUTICAL ENGINEERING, METEOROLOGY, RESEARCH AND DEVELOPMENT, DOCUMENTS, INDEXES...
Tabulations and graphs of electron density and plasma scale height data computed from Alouette I topside sounder ionograms
Topics: ALOUETTE PROJECT, SUMMER, WINTER, ALOUETTE I SATELLITE, ELECTRON, IONOSPHERIC ELECTRON DENSITY,...
NASA Technical Documents
by Compton, W. D.; Benson, C. D
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The history of Skylab is examined with emphasis on program development from previous Apollo missions, modifications to spacecraft, onboard experiments, and flight crew training. A listing of the missions and an evaluation of results are included with a brief description of the workshop's reentry.
Topics: AIR SAMPLING, TABLES (DATA), TOXIC HAZARDS, ATMOSPHERIC COMPOSITION, BOEING 747 AIRCRAFT, CABIN...
NASA Technical Documents
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This report summarizes the results of the NASA Scientific Data Purchase (SDP) program implemented by the Stennis Space Center Earth Science Application Directorate in fiscal years 1998-2002. The SDP was conducted in support of NASA's Mission to Planet Earth (MTPE) program (currently known as NASA's Earth Science Enterprise). This Earth Science Enterprise (ESE) provides major observational capabilities for NASA's Earth system science research and the U.S. Global Change Research Program....
Topics: CATALOGS (PUBLICATIONS), CCD CAMERAS, ASTROMETRY, PARALLAX, MAIN SEQUENCE STARS, ACCURACY,...
NASA Technical Documents
by NON
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The Aerospace Mechanisms Symposium (AMS) provides a unique forum for those active in the design, production and use of aerospace mechanisms. A major focus is the reporting of problems and solutions associated with the development and flight certification of new mechanisms. Organized by the Mechanisms Education Association, the National Aeronautics and Space Administration and Lockheed Martin Space Systems Company (LMSSC) share the responsibility for hosting the AMS. Now in its 38th symposium,...
Topics: ANTARCTIC REGIONS, OZONE DEPLETION, GREENHOUSE EFFECT, GAS TEMPERATURE, ATMOSPHERIC TEMPERATURE,...
NASA Technical Documents
by Arbit, H. A.; Clapp, S. D.; Nagai, C. K
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Feasibility of lithium-fluorine-hydrogen propellant combination
Topics: COMETS, METEOROIDS, COSMOLOGY, DISRUPTING, SOLAR SYSTEM
NASA Technical Documents
by Savin, G. N
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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
NASA Technical Documents
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No Abstract Available
Topics: ENGINE TESTS, NONDESTRUCTIVE TESTS, PERFORMANCE, PROPELLANTS, DEGRADATION, MECHANICAL PROPERTIES
NASA Technical Documents
by Alexopoulos, Jim S.; Mckinnon, William B
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We have analyzed cycle 1 Magellan images covering approximately 90 percent of the venusian surface and have identified 55 unequivocal peak-ring craters and multiringed impact basins. This comprehensive study (52 peak-ring craters and at least 3 multiringed impact basins) complements our earlier independent analysis of Arecibo and Venera images and initial Magellan data and that of the Magellan team.
Topics: AEROSPACE INDUSTRY, WASTE TREATMENT, HEALTH, PRODUCTIVITY, ANTARCTIC REGIONS, CONTROLLED...
NASA Technical Documents
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The NASA Communications (Nascom) System Development Plan (NSDP), reissued annually, describes the organization of Nascom, how it obtains communication services, its current systems, its relationship with other NASA centers and International Partner Agencies, some major spaceflight projects which generate significant operational communication support requirements, and major Nascom projects in various stages of development or implementation.
Topics: PARAMETERIZATION, ALGORITHMS, ATMOSPHERIC GENERAL CIRCULATION MODELS, DECOUPLING, DISTRIBUTION...
NASA Technical Documents
by SISAKYAN, N. M
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GRAVITATIONAL AND ACCELERATION EFFECTS ON MAN AND ORGANISMS, AND BIOLOGICAL EFFECTS OF RADIATION
Topics: COMBUSTION CONTROL, PROPELLANT TANKS, SPACECRAFT PROPULSION, APOLLO SPACECRAFT, CAPILLARY TUBES,...
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...
The Infrared Astronomical Satellite (IRAS) was launched January 26, 1983. During its 300-day mission, IRAS surveyed over 96 pct of the celestial sphere at four infrared wavelengths, centered approximately at 12, 25, 60, and 100 microns. This is Volume 3, The Point Source Catalog Declination Range 30 deg greater than delta greater than 0 deg.
Topics: EQUIPMENT SPECIFICATIONS, NAVIGATION AIDS, PERFORMANCE TESTS, STAR TRACKERS, ELECTRO-OPTICS, LASER...
NASA Technical Documents
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,...
This document contains papers presented at the 4th International Conference Exhibition: World Congress on Superconductivity held at the Marriott Orlando World Center, Orlando, Florida, June 27-July 1, 1994. This conference encompassed research, technology, applications, funding, political, and social aspects of superconductivity. Specifically, the areas of research, technology, and development covered during the conference included high-temperature materials, thin films, C-60 based...
Topics: SPACEBORNE EXPERIMENTS, CALORIMETERS, X RAYS, BISMUTH, ENERGY SPECTRA, GERMANATES, GAMMA RAYS,...
Planetary Science Decadal Survey
by Dr. Martha S. Gilmore, Dr. Lori S. Glaze. Charles L. Baker, and George J. Tahu
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The National Research Council's 2010 Planetary Decadal Survey Inner Planets Panel commissioned the Goddard Space Flight Center's (GSFC) Architecture Design Lab (ADL) to do an enhanced rapid mission architecture study, conducted under NASA Headquarters leadership. The charge was to conceive a Venus mission architecture capable of safe landing in one of the mountainous tessera regions of the planet on a budget comparable to New Frontiers. Using the ADL's five step process (see Appendix), the...
Topics: Venus, Venus Intrepid Tessera Lander, VITaL, NASA, Mission, Concept Study, Decadal
NASA Technical Documents
by Engelbart, D. C.; English, W. K.; Huddart, B
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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...
NASA Technical Documents
by Brennan, P. J.; Kroliczek, E. J
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No Abstract Available
Topics: HYDROGEN OXYGEN ENGINES, TURBOROCKET ENGINES, ORBIT TRANSFER VEHICLES, ROCKET ENGINE DESIGN,...
NASA Technical Documents
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No Abstract Available
Topics: SPACE SHUTTLES, SPACECRAFT PERFORMANCE, WEIGHT ANALYSIS, GRAPHS (CHARTS), SPACE TRANSPORTATION...
Planetary Science Decadal Survey
by Dr. David Grinspoon, Michael J. Amato, Michael L. Adams, Tibor Balint
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The National Research Council's 2010 Planetary Decadal Survey Inner Planets Panel commissioned the NASA Goddard Space Flight Center (GSFC) and the California Institute of Technology Jet Propulsion Laboratory (JPL) to perform a point design study, conducted under NASA Headquarters leadership. The charge is to mature a Venus mission concept capable of studying the Venus climate within a New Frontiers cost range. The NASA Ames Research Center also participated in this study, providing expertise in...
Topics: Venus, Venus Climate Mission, NASA, Decadal, Mission Concept Study, VCM
NASA Technical Documents
by Babenko, K. I.; Lyubimov, A. N.; Rusanov, V. V.; Voskresenskiy, G. P
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Nonaxisymmetric three-dimensional flow field of ideal gas about smooth body of revolution
Topics: AXISYMMETRIC FLOW, BODY OF REVOLUTION, FLOW FIELD, IDEAL GAS, THREE-DIMENSIONAL FLOW, BODIES OF...
NASA Technical Documents
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...
NASA Technical Documents
by Mateer, G. G.; Seegmiller, H. L.; Hand, L. A.; Szodruch, J
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Detailed experimental data were obtained on a supercritical airfoil and in the surrounding flowfield. Surface pressures were measured on both the model and wind-tunnel walls. The velocity field above the airfoil and the field in its wake was documented using a laser Doppler velocimeter. The data illustrate the effect of Mach number and angle of attack on the flow over the airfoil. Angles of attack ranged from 0.5 to 1.5 degrees and the Mach number was varied from 0.73 to 0.8. These variations...
Topics: INTERPLANETARY SPACECRAFT, MANNED SPACECRAFT, MISSION PLANNING, SPACE TRANSPORTATION, TECHNOLOGY...
NASA Technical Documents
by Carroll, Thomas; Mcavoy, William
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This report describes the atmospheric conditions under which ice is formed upon the exposed parts of airplanes in flight. It identifies the formation found under different conditions, and describes some studies of preventative means.
NASA Technical Documents
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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,...
NASA Technical Documents
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A temporal adaptive algorithm for the time-integration of the two-dimensional Euler or Navier-Stokes equations is presented. The flow solver involves an upwind flux-split spatial discretization for the convective terms and central differencing for the shear-stress and heat flux terms on an unstructured mesh of triangles. The temporal adaptive algorithm is a time-accurate integration procedure which allows flows with high spatial and temporal gradients to be computed efficiently by advancing...
Topics: COMPUTATIONAL FLUID DYNAMICS, WIND TUNNEL TESTS, COMPUTATIONAL GRIDS, COMPUTER PROGRAMS, FLOW...
NASA Technical Documents
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Aircraft automation is examined and its effects on flight crews. Generic guidelines are proposed for the design and use of automation in transport aircraft, in the hope of stimulating increased and more effective dialogue among designers of automated cockpits, purchasers of automated aircraft, and the pilots who must fly those aircraft in line operations. The goal is to explore the means whereby automation may be a maximally effective tool or resource for pilots without compromising human...
Topics: AEROTHERMODYNAMICS, DATA REDUCTION, INVESTMENT CASTING, SPHERES, TARGET RECOGNITION, HEAT TRANSFER,...
NASA Technical Documents
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The Catalog of Infrared Observations and its Far Infrared Supplement summarize all infrared astronomical observations at infrared wavelengths published in the scientific literature between 1965 and 1982. The Catalog includes as appendices the Bibliography of infrared astronomy which keys observations in the Catalog with the original journal references, and the index of infrared source positions which gives source positions for alphabetically listed sources in the Catalog. The Catalog data base...
Topics: CRACK GEOMETRY, MATHEMATICAL MODELS, MEASURE AND INTEGRATION, MICROCRACKS, STRESS INTENSITY...
NASA Technical Documents
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Launch complex 39 - umbilical arms
Topics: APOLLO PROJECT, LAUNCH COMPLEX, SATURN V LAUNCH VEHICLE, UMBILICAL TOWER, CAPE KENNEDY LAUNCH...
NASA Technical Documents
by Bialous, A. J.; Peters, P. H.; Stone, E. E
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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
NASA Technical Documents
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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,...
NASA Technical Documents
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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
NASA Technical Documents
by Cheatham, J. G.; Creason, T. L
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A model single-stage fan with variable inlet guide vanes (VIGV) was designed to demonstrate efficient point operation while providing flow and pressure ratio modulation capability required for a V/STOL propulsion system. The fan stage incorporates a split-flap VIGV with an independently actuated ID flap to permit independent modulation of fan and core engine airstreams, a flow splitter integrally designed into the blade and vanes to completely segregate fan and core airstreams in order to...
Topics: FAULT TOLERANCE, MARKOV PROCESSES, RELIABILITY ANALYSIS, SYSTEMS ANALYSIS, SYSTEMS ENGINEERING,...
No Abstract Available
Topics: BEND TESTS, VAPOR DEPOSITION, CERAMICS, DUCTILITY, MAGNESIUM OXIDES, POLYCRYSTALS, SODIUM...