20 p., ill., 25 cm, trade catalog
Topics: weatherstrips -- catalogs, thermal protection -- catalogs, Division 08
249
249
Jul 11, 2010
07/10
by
Rettig, H.; Wirth, X
texts
eye 249
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Damage occurs again and again in practice in the form of transmissions with surface hardened gears which break after a very long operating time (explained by seldom occurring jerky loads). Gear drives are frequently exposed to jerky stresses which are greater than their fatigue limit. These stresses are considered in gear calculations, first, by shock factors when the transmission is to be designed as high endurance with regard to overloads and, second, in the form of operating ratios when the...
Topics: FOUNDATIONS, THERMAL PROTECTION, THIN PLATES, SPACECRAFT CONSTRUCTION MATERIALS
12 p., ill., 25 cm, trade catalog
Topics: metal weatherstrip -- catalogs, thermal protection -- catalogs, Division 08
[1118] p., ill., 25 cm, trade catalog
Topics: building materials -- catalogs, sweet's catalogs -- catalogs, thermal protection -- catalogs
[1325] p., ill., 25 cm, trade catalog
Topics: building materials -- catalogs, sweet's catalogs -- catalogs, thermal protection -- catalogs
Thermal protection for divers is critical and needs improvement. The goal is to have a full wetsuit that will insulate the human body from the colder temperature of the water at the depth at which a diver is submerged. I designed, fabricated, and built a fully thermal passive insulation wetsuit using composite material based on microspheres to be able to comfortably fit on a human to minimize restriction while diving and performing duties underwater. During testing in the open ocean, the...
Topics: diving, thermal protection, insulation, change in temperature, composite wetsuit
308
308
Jun 20, 2010
06/10
by
Kutateladze, S. S.; Leontev, A. I.; Levchenko, V. IA.; Volchkov, E. P
texts
eye 308
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Protective cooling of insulated plane surface by gas injection into turbulent boundary layer of incident flow through slot system
Topics: COOLING, THERMAL PROTECTION, TURBULENT BOUNDARY LAYER, GAS INJECTION, INJECTION, SLOTS, SURFACE...
Trade catalog, Text, Illus, Photographs, CCA ID: 89-B2714, ca. 1954, 12 p, 28 cm
Topics: Glass, Insulation, Division 07, Thermal and Moisture Protection, Thermal Protection
228
228
May 31, 2011
05/11
by
Kory, Carol L.; Andro, Mont
texts
eye 228
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For the first time, a time-dependent, physics-based computational model has been used to provide a direct description of the effects of the traveling wave tube amplifier (TWTA) on modulated digital signals. The TWT model comprehensively takes into account the effects of frequency dependent AM/AM and AM/PM conversion; gain and phase ripple; drive-induced oscillations; harmonic generation; intermodulation products; and backward waves. Thus, signal integrity can be investigated in the presence of...
Topics: SPACE SHUTTLE BOOSTERS, THERMAL PROTECTION, COATINGS, ALUMINUM, TEST FACILITIES, TESTS
[1262] p., ill., 25 cm, trade catalog
Topics: building materials -- catalogs, sweets catalogs, thermal protection -- catalogs, metal -- catalogs
241
241
May 6, 2010
05/10
by
Knoll, R. H.; Smolak, G. R.; Wallner, L. E
texts
eye 241
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Analysis of thermal-protection systems for space vehicle cryogenic propellant tanks
Topics: CRYOGENIC FLUID STORAGE, SPACE VEHICLE, THERMAL PROTECTION, CRYOGENIC ROCKET PROPELLANTS, HEAT...
193
193
Jun 21, 2010
06/10
by
Mc Laughlin, M. D
texts
eye 193
favorite 0
comment 0
Simulation study of three instrument displays to assist airplane thrust management
Topics: BALANCE, THERMAL PROTECTION, HEAT SHIELDING, HEAT TRANSFER, LOADS (FORCES), VACUUM CHAMBERS
666
666
Jul 6, 2010
07/10
by
IMYANITOV, I. M.; CHUBARINA, Y. V.; SHVARTS, Y. M
texts
eye 666
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RECENT STUDIES OF THE ELECTRICAL STRUCTURE OF CLOUDS, PROCESSES LEADING TO THEIR ELECTRIFICATION, AND THE POSSIBILITY OF CONTROLLING THEIR FORMATION BY ELECTRICAL MEANS ARE REVIEWED. THE ELECTRICAL PROPERTIES OF STRATIFORM CLOUDS, CONVECTIVE CLOUDS WITHOUT RAIN, AND CUMULONIMBUS CLOUDS ARE DESCRIBED. THE ELECTRIFICATION OF PARTICLES IN CLOUDS AND PRECIPITATION, ACCUMULATION OF SPACE CHARGES IN CLOUDS, AND THE INFLUENCE OF THE ELECTRICAL CHARACTERISTICS OF A CLOUD ON ITS DEVELOPMENT ARE...
Topics: AIRFRAME MATERIALS, COMPOSITE MATERIALS, FIBERS, THERMAL PROTECTION, ATMOSPHERIC ENTRY, SPACECRAFT...
232
232
May 30, 2011
05/11
by
Feier, I. I.; Shih, H. Y.; Sacksteder, K. R.; Tien, J. S
texts
eye 232
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The effects of partial-gravity, reduced pressure, and sample width on upward flame spread over a thin cellulose fuel were studied experimentally and the results were compared to a numerical flame spread simulation. Fuel samples 1-cm, 2-cm, and 4-cm wide were burned in air at reduced pressures of 0.2 to 0.4 atmospheres in simulated gravity environments of 0.1-G, 0.16-G (Lunar), and 0.38-G (Martian) onboard the NASA KC-135 aircraft and in normal-gravity tests. Observed steady flame propagation...
Topics: AERODYNAMIC HEATING, COMPUTER PROGRAMS, THERMAL PROTECTION, REUSABLE LAUNCH VEHICLES, NUMERICAL...
179
179
Aug 19, 2009
08/09
by
NASA
image
eye 179
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Visitors to the Future Missions tent learn about the Thermal Protection System (TPS) for the Orion Crew Exploration Vehicle that will take astronaut crews to the International Space Station and will later return humans to the Moon.
Topics: Thermal Protection System, What -- Orion, What -- International Space Station (ISS), What -- Moon
Source: http://www.nasa.gov/50th/Folklife_Images/tps.html
805
805
Jun 27, 2010
06/10
by
ISAYEV, S. I., et al
texts
eye 805
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comment 0
IONOSPHERIC AURORAL MORPHOLOGY, HEIGHT VARIATIONS, AND RELATIONSHIPS TO PLANETARY MAGNETIC DISTURBANCES IN PERIODS OF MINIMUM AND MAXIMUM SOLAR ACTIVITY AT VARYING LATITUDES
Topics: ANODIC COATINGS, FLAMES, METAL SURFACES, THERMAL PROTECTION, ANODIZING, IRON ALLOYS, TEMPERATURE...
322
322
Jun 26, 2010
06/10
by
Faeth, P. A
texts
eye 322
favorite 0
comment 0
Automatic recording McLeod gage with three electrodes and solenoid valve connection
Topics: CERAMICS, INSULATION, THERMAL PROTECTION, THERMODYNAMIC PROPERTIES, CHEMICAL REACTIONS, HEAT...
235
235
Jul 12, 2010
07/10
by
Katz, J
texts
eye 235
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Detectors for optical communications in the visible and near infrared regions of the spectrum are reviewed. The three generic types of detectors described are: photomultipliers, photodiodes and avalanche photodiodes. Most of the information is applicable to other optical communications systems.
Topics: AEROTHERMODYNAMICS, HYPERSONIC FLOW, THERMAL PROTECTION, COMPUTER PROGRAMS, INPUT, USER MANUALS...
An atmospheric entry study to fine a generic aerocapture vehicle capable of missions to Mars, Saturn, and Uranus is reported. A single external geometry was developed through atmospheric entry simulations. Aerocapture is a system design concept which uses an aerodynamically controlled atmospheric entry to provide the necessary velocity depletion to capture payloads into planetary orbit. Design concepts are presented which provide the control accuracy required while giving thermal protection for...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC ENTRY SIMULATION, ORBIT TRANSFER VEHICLES,...
16 p., ill., 25 cm, trade catalog
Topics: insulation -- catalogs, acoustical treatment -- catalogs, thermal protection -- catalogs, Division...
296
296
Jun 26, 2010
06/10
by
NON
texts
eye 296
favorite 0
comment 0
Mechanisms of galactic gamma ray production and estimates of production spectra in Milky Way
Topics: FLAME SPRAYING, HALOGENS, INORGANIC COMPOUNDS, POLYURETHANE FOAM, RESINS, CHEMICAL REACTIONS,...
1,030
1.0K
texts
eye 1,030
favorite 0
comment 0
No Abstract Available
Topics: ABLATION, LEADING EDGES, SPACE SHUTTLES, THERMAL PROTECTION, AERODYNAMIC HEATING, HEAT TRANSFER,...
229
229
Jul 9, 2010
07/10
by
Vickers, R. S.; Heighway, J. E.; Gedney, R
texts
eye 229
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comment 0
The acquisition and interpretation of ice thickness data from a mobile platform has for some time been a goal of the remote sensing community. Such data, once obtainable, is of value in monitoring the changes in ice thickness over large areas, and in mapping the potential hazards to traffic in shipping lanes. Measurements made from a helicopter-borne ice thickness profiler of ice in Lake Superior, Lake St. Clair and the St. Clair river as part of NASA's program to develop an ice information...
Topics: CARBON DIOXIDE, CRYODEPOSITS, FROST, THERMAL PROTECTION, HELIUM, LIQUID HYDROGEN, PROPELLANT TANKS,...
223
223
May 31, 2011
05/11
by
Cutler, A. D.; Diskin, G. S.; Danehy, P. M.; Drummond, J. P
texts
eye 223
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Two experiments have been conducted to acquire data for the validation of computational fluid dynamics (CFD) codes used in the design of supersonic combustors. The first experiment is a study of a supersonic coaxial jet into stagnant air in which the center jet is of a light gas, the coflow jet is of air, and the mixing layer between them is compressible. The jet flow field is characterized using schlieren imaging, surveys with Pitot, total temperature and gas sampling probes, and RELIEF...
Topics: HEAT FLUX, LAUNCH VEHICLES, CONVECTIVE HEAT TRANSFER, THERMAL PROTECTION, CALORIMETERS, CONDUCTIVE...
622
622
May 30, 2011
05/11
by
Markley, F. Landi
texts
eye 622
favorite 0
comment 0
The four-component quaternion has the lowest dimensionality possible for a globally nonsingular attitude representation, it represents the attitude matrix as a homogeneous quadratic function, and its dynamic propagation equation is bilinear in the quaternion and the angular velocity. The quaternion is required to obey a unit norm constraint, though, so Kalman filters often employ a quaternion for the global attitude estimate and a three-component representation for small errors about the...
Topics: ABLATION, THERMAL PROTECTION, SURFACE ROUGHNESS, BOUNDARY LAYER TRANSITION, LAMINAR BOUNDARY LAYER,...
12 p., ill., 25 cm, trade catalog
Topics: insulation -- catalogs, acoustical treatment -- catalogs, thermal protection -- catalogs,...
383
383
Sep 20, 2010
09/10
by
NON
texts
eye 383
favorite 0
comment 0
The Space Station Freedom Furnace (SSFF) Project is divided into two phases: phase 1, a definition study phase, and phase 2, a design and development phase. TBE was awarded a research study entitled, 'Space Station Furnace Facility Requirements Definition and Conceptual Design Study' on June 2, 1989. This report addresses the definition study phase only. Phase 2 is to be complete after completion of phase 1. The contract encompassed a requirements definition study and culminated in...
Topics: COMPOSITE MATERIALS, MISSION PLANNING, REUSABLE LAUNCH VEHICLES, THERMAL PROTECTION, FLIGHT TESTS,...
421
421
Jul 12, 2010
07/10
by
Dymek, R. F.; Boak, J. L.; Gromet, L. P
texts
eye 421
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comment 0
Rare earth element (REE) data is given on a set of clastic metasediments from the 3800 Ma Isua Supracrustal belt, West Greenland. Each of two units from the same sedimentary sequence has a distinctive REE pattern, but the average of these rocks bears a very strong resemblance to the REE pattern for the North American Shale Composite (NASC), and departs considerably from previous estimates of REE patterns in Archaean sediments. The possibility that the source area for the Isua sediments...
Topics: INTERNAL FLOW, SPACE SHUTTLES, STEADY FLOW, THERMAL PROTECTION, CHANNEL FLOW, INCOMPRESSIBLE FLOW,...
1,150
1.2K
Jul 12, 2010
07/10
by
Skillman, W. C.; Kreins, E. R
texts
eye 1,150
favorite 0
comment 0
Information about the Earth hydrosphere, obtained in the field and from aircraft and satellite imagery is reported. Particular emphasis is given to the use of microwave sensors in the study of soil moisture, sea ice, snow cover and atmospheric parameters associated with watersheds.
Topics: ARRAYS, TITANIUM, FABRICATION, MANUFACTURING, PANELS, THERMAL PROTECTION, ABLATIVE MATERIALS,...
416
416
Jun 2, 2011
06/11
by
Prinzel, Lawrence J., III; Arthur, Jarvis J., III; Kramer, Lynda J.; Bailey, Randall E
texts
eye 416
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Eight 757 commercial airline captains flew 22 approaches using the Reno Sparks 16R Visual Arrival under simulated Category I conditions. Approaches were flown using a head-down synthetic vision display to evaluate four tunnel (''minimal'', ''box'', ''dynamic pathway'', ''dynamic crow s feet'') and three guidance (''ball'', ''tadpole'', ''follow-me aircraft'') concepts and compare their efficacy to a baseline condition (i.e., no tunnel, ball guidance). The results showed that the tunnel concepts...
Topics: AEROTHERMODYNAMICS, X-33 REUSABLE LAUNCH VEHICLE, COMPUTATIONAL FLUID DYNAMICS, THERMAL PROTECTION,...
An overview of Ames Research Center and its research activities in support of NASA Exploration programs
Topics: Ames, Ames Research Center, space exploration, technologies, thermal protection, supercomputing,...
895
895
May 23, 2011
05/11
by
Evans, R. W
texts
eye 895
favorite 0
comment 0
Lightning tests were performed on composite materials as a part of an investigation of electromagnetic effects on the materials. Samples were subjected to direct and remote simulated lightning strikes. Samples included various thicknesses of graphite filament reinforced plastic (GFRP), material enhanced by expanded aluminum foil layers, and material with an aluminum honeycomb core. Shielding properties of the material and damage to the sample surfaces and joints were investigated. Adding...
Topics: CARBON-CARBON COMPOSITES, THERMAL CONDUCTIVITY, DATA BASES, THERMAL PROTECTION, HYPERSONIC...
A lightweight and inexpensive coverlayer developed for space suits is described. Material selection, procurement, and testing, pattern design, and prototype fabrication are discussed. By using the minimum required cross section necessary for earth orbital mission, by utilizing the lightest weight materials possible, and by decreasing the use of weight costly taping a lightweight and economical thermal micrometeroid garment was developed. Simplification of manufacturing techniques and use of...
Topics: NASA Technical Reports Server (NTRS), SPACE SUITS, THERMAL PROTECTION, COST EFFECTIVENESS,...
292
292
Jul 12, 2010
07/10
by
Neel, C. B
texts
eye 292
favorite 0
comment 0
No Abstract Available
Topics: AIRFOILS, DEICERS, ICE FORMATION, PNEUMATIC CONTROL, THERMAL PROTECTION, AERODYNAMIC...
501
501
Jun 13, 2011
06/11
by
Spruce, Joseph P.; Terrie, Gregor; Hall, Callie; Zanoni, Vicki; Blonski, Slawomir; D'Sa, Eurico; Estep, Lee; Holland, Donald; Moore, Roxzana F.; Pagnutti, Mary
texts
eye 501
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NASA's Earth Science Applications Directorate evaluated the potential of NASA remote sensing data and modeling products to enhance the General NOAA Oil Modeling Environment (GNOME) decision support tool. NOAA's Office of Response and Restoration (OR&R) Hazardous Materials (HAZMAT) Response Division is interested in enhancing GNOME with near-realtime (NRT) NASA remote sensing products on oceanic winds and ocean circulation. The NASA SeaWinds sea surface wind and Jason-1 sea surface height...
Topics: THERMAL PROTECTION, TECHNOLOGY ASSESSMENT, INFLATABLE STRUCTURES, REENTRY VEHICLES, AEROSHELLS,...
1,567
1.6K
Sep 20, 2010
09/10
by
Kephart, Nanc
texts
eye 1,567
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comment 0
The function of the Space Station Furnace Facility (SSFF) is to support materials research into the crystal growth and solidification processes of electronic and photonic materials, metals and alloys, and glasses and ceramics. To support this broad base of research requirements, the SSFF will employ a variety of furnace modules operated, regulated, and supported by a core of common subsystems. Furnace modules may be reconfigured or specifically developed to provide unique solidifcation...
Topics: DURABILITY, PLANFORMS, QUALITY CONTROL, MANUFACTURING, SPACE TRANSPORTATION, THERMAL INSULATION,...
242
242
May 31, 2011
05/11
by
Starin, Scott R.; Bay, P. Michael; Wollack, Edward J.; Fink, Dale R.; Ward, David K.; ODonnell, James R., Jr
texts
eye 242
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A common theme in discussions of the Microwave Anisotropy Probe (MAP) is the attainment of mission goals for minimal cost. One area of cost savings was a reduction in the fuel budget required. To reach orbit around the L2 notation point of the Earth-Sun system, the MAP spacecraft was guided very close to the Moon, allowing a gravity-assisted trajectory out to L2. In order to property time the lunar swing-by, MAP followed a trajectory of three-and-a-half highly elliptical phasing loops. At each...
Topics: AEROSPACE VEHICLES, SURVEYS, PROPULSION SYSTEM CONFIGURATIONS, RADIATION PROTECTION, THERMAL...
264
264
Jun 12, 2011
06/11
by
Grossi, Davide; Dignum, Fran
texts
eye 264
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Norms specifying constraints over institutions are stated in such a form that allows them to regulate a wide range of situations over time without need for modification. To guarantee this stability, the formulation of norms need to abstract from a variety of concrete aspects, which are instead relevant for the actual operationalization of institutions. If agent institutions are to be built, which comply with a set of abstract requirements, how can those requirements be translated in more...
Topics: VIBRATION TESTS, ACCELEROMETERS, THERMAL PROTECTION, TILES, GROUND TESTS, FREQUENCY RESPONSE,...
Pyran System represents a major advancement in control of pyrolysis, the technology of subjecting organic material to selected temperatures to break them down into their component parts, and that the system offers capabilities unavailable. Pyran System is designed for rapid automated analysis of the composition of organic matter. It is capable of heating samples to 1,130 degrees fahrenheit with infrared heat at a precisely controlled atmosphere. In order to do this with the degree of control...
Topics: NASA Technical Reports Server (NTRS), THERMAL PROTECTION, INSULATION, TILES, PYROLYSIS, ORGANIC...
334
334
Jun 20, 2010
06/10
by
Chapman, A. J.; Perel, D. H
texts
eye 334
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comment 0
Radiative thermal energy incident effects on pressure-suited man on lunar surface
Topics: ENVIRONMENTAL ENGINEERING, PROTECTIVE CLOTHING, SOLAR RADIATION, THERMAL ENERGY, LUNAR ENVIRONMENT,...
Reusable holders have been devised for evaluating high-temperature, plasma-resistant re-entry materials, especially fabrics. Typical material samples tested support thermal-protection-system damage repair requiring evaluation prior to re-entry into terrestrial atmosphere. These tests allow evaluation of each material to withstand the most severe predicted re-entry conditions.
Topics: NASA Technical Reports Server (NTRS), HOLDERS, FASTENERS, CLAMPS, REENTRY, THERMAL PROTECTION,...
121
121
Jun 2, 2011
06/11
by
Chackerian, Charles, Jr.; Giver, Lawrence P
texts
eye 121
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comment 0
Infrared spectroscopic techniques have become extremely powerful tools for use in achieving a number of observational objectives in understanding and monitoring the health of Earth s atmosphere. Prerequisite to designing appropriate instruments well as to interpreting the observations that monitor the important molecular species, quantitative laboratory spectroscopic measurements must be done. measurements provide (1) line and band intensity values that are needed to establish limits of...
Topics: X-34 REUSABLE LAUNCH VEHICLE, THERMAL PROTECTION, AEROTHERMODYNAMICS, ABLATIVE MATERIALS, RUDDERS,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), HIGH TEMPERATURE, CERAMIC MATRIX COMPOSITES, THERMAL...
305
305
May 6, 2010
05/10
by
Estep, Lelan
texts
eye 305
favorite 0
comment 0
Presently, the BLM (Bureau of Land Management) has identified a multitude of abandoned mine sites in primarily Western states for cleanup. These sites are prioritized and appropriate cleanup has been called in to reclaim the sites. The task is great in needing considerable amounts of agency resources. For instance, in Colorado alone there exists an estimated 23,000 abandoned mines. The problem is not limited to Colorado or to the United States. Cooperation for reclamation is sought at local,...
Topics: BOUNDARY LAYER TRANSITION, CORRELATION, THERMAL STRESSES, AEROTHERMODYNAMICS, CALIBRATING, LEADING...
Reusable holders have been devised for evaluating high-temperature, plasma-resistant re-entry materials, especially fabrics. Typical material samples tested support thermal-protection-system damage repair requiring evaluation prior to re-entry into terrestrial atmosphere. These tests allow evaluation of each material to withstand the most severe predicted re-entry conditions.
Topics: NASA Technical Reports Server (NTRS), HOLDERS, LOCKING, NUTS (FASTENERS), DAMAGE ASSESSMENT,...
238
238
Jul 11, 2010
07/10
by
Cassidy, D. E
texts
eye 238
favorite 0
comment 0
No Abstract Available
Topics: GLASS, REUSABLE HEAT SHIELDING, SPACE SHUTTLES, THERMAL INSULATION, SIMULATION, SPACECRAFT...
The advancement of material performance and design methodology as related to brittle materials was investigated. The processing and properties of ceramic materials as related to design requirements was also studied.
Topics: NASA Technical Reports Server (NTRS), BRITTLE MATERIALS, CERAMICS, MATERIALS SCIENCE, THERMAL...
230
230
Jun 12, 2011
06/11
by
Kerr, Wesley; Spears, Diana; Spears, William; Thayer, Davi
texts
eye 230
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The task addressed here is a dynamic search through a bounded region, while avoiding multiple large obstacles, such as buildings. In the case of limited sensors and communication, maintaining spatial coverage - especially after passing the obstacles - is a challenging problem. Here, we investigate two physics-based approaches to solving this task with multiple simulated mobile robots, one based on artificial forces and the other based on the kinetic theory of gases. The desired behavior is...
Topics: COST REDUCTION, ROBOTICS, SOLAR SYSTEM, PAYLOADS, THERMAL PROTECTION, TEMPLATES, CERTIFICATION,...
In June 2004, the June Space Flight Leadership Council (SFLC) assigned an action to the NASA Engineering and Safety Center (NESC) and External Tank (ET) project jointly to characterize the available dataset [of defect sizes from dissections of foam], identify resultant limitations to statistical treatment of ET as-built foam as part of the overall thermal protection system (TPS) certification, and report to the Program Requirements Change Board (PRCB) and SFLC in September 2004. The NESC...
Topics: NASA Technical Reports Server (NTRS), EXTERNAL TANKS, THERMAL PROTECTION, STATISTICAL ANALYSIS,...
183
183
Jun 2, 2011
06/11
by
Srivastava, Deepak; Menon, Madh
texts
eye 183
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The structure of boron nitride nanotubes is investigated using a generalized tight-binding molecular dynamics method. It is shown that dynamic relaxation results in a wavelike or ''rippled'' surface in which the B atoms rotate inward and the N atoms move outward, reminiscent of the surface relaxation of the III-V semiconductors. More importantly, the three different morphologies of the tube closing with flat, conical and amorphous ends, as observed in experiments, are shown to be directly...
Topics: MANAGEMENT PLANNING, ABLATIVE MATERIALS, THERMAL PROTECTION, PERFORMANCE TESTS, SYSTEMS...
