814
814
Jun 1, 2010
06/10
by
Khvostikov, I. A
texts
eye 814
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comment 0
Methods of measuring upper atmospheric conditions, structure, dynamic properties, and composition
Topics: ATMOSPHERIC COMPOSITION, DYNAMIC CHARACTERISTICS, HANDBOOKS, METEOROLOGY, UPPER ATMOSPHERE,...
234
234
May 28, 2011
05/11
by
Dufour, Reginald J
texts
eye 234
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This report summarizes the research performed at Rice University related to NASA-Ames University consortium grant NCC2-5199 during the two year period 1996 September 1 through 1998 August 31. The research program, titled Orion Nebula and Planetary Nebulae, involved the analysis of Hubble Space Telescope (HST) imagery and spectroscopy of the Orion Nebula and of the planetary nebulae NGC 6818 and NGC 6210. In addition, we analyzed infrared spectra of the Orion Nebula taken with the Infrared Space...
Topics: ATMOSPHERIC COMPOSITION, EXPERIMENTATION, RESEARCH, PROPOSALS, OCEANOGRAPHY, DELAY
206
206
Jun 17, 2010
06/10
by
Barbier, D
texts
eye 206
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comment 0
Observations of redline of night airglow and structure of atmospheric F-layer in Africa
Topics: AFRICA, F LAYER, RED ARC, AIRGLOW, ATMOSPHERIC COMPOSITION, F REGION, NIGHT, NIGHTGLOW, RED ARCS,...
170
170
Jun 20, 2010
06/10
by
Repin, L
texts
eye 170
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comment 0
Simulation facility for atmospheric composition, pressure, and daily variations of Mars and other planets
Topics: ATMOSPHERIC COMPOSITION, ENVIRONMENT SIMULATION, PLANETARY ATMOSPHERE, DIURNAL VARIATIONS, DOORS,...
240
240
Jun 1, 2010
06/10
by
Pokhunkov, A. A
texts
eye 240
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comment 0
Gravitational separation, composition, and structural parameters of night upper atmosphere
Topics: ATMOSPHERIC COMPOSITION, GRAVITY, NIGHT IONOSPHERE, EARTH IONOSPHERE, GRAVITATION, NIGHT, NIGHT...
158
158
Jul 12, 2010
07/10
by
Schulte, H. J
texts
eye 158
favorite 0
comment 0
No Abstract Available
Topics: BALLOON SOUNDING, DIFFRACTION PROPAGATION, LASERS, AIRCRAFT, ATMOSPHERIC COMPOSITION
188
188
Jul 6, 2010
07/10
by
NADEZHIN, D. K.; FRANK-KAMENETSKIY, D. A
texts
eye 188
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PARTIAL DIFFERENTIAL EQUATIONS DESCRIBING SPHERICALLY SYMMETRICAL ADIABATIC MOTIONS OF AN IDEAL GAS WERE INTEGRATED BY THE METHOD OF FINITE DIFFERENCES. STATIONARY STELLAR MODELS WERE PERTURBED IN THE FOLLOWING MANNER: AN INWARD VELOCITY WAS GIVEN TO MATTER LOCATED NEAR THE CENTER OF THE STAR (CENTRAL COLLAPSE), THEN COLLAPSE WAS PRODUCED IN SOME PERIPHERAL LAYERS; FINALLY COOLING OCCURRED IN THE CENTRAL STELLAR REGION. THESE PERTURBATIONS LED TO THE FORMATION OF SHOCK WAVES. A SET OF...
Topics: AEROBIOLOGY, FLUID FILTERS, MICROORGANISMS, ATMOSPHERIC COMPOSITION, BACTERIOLOGY, BIOASSAY
360
360
Jul 12, 2010
07/10
by
Richards, F. M., Jr
texts
eye 360
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comment 0
The processing behavior of NASTRAN, a general purpose system of computer software used for solving engineering analysis problems by means of the finite element displacement method, is discussed. The host system for the NASTRAN is the Univac 1110, and the primary function is performing static and dynamic structural analyses of the Space Shuttle. The processing implications of the NASTRAN structural analysis are addressed and the current NASTRAN situation on the Univac 1110 is examined. The...
Topics: ATMOSPHERIC OPTICS, OPTICAL RADAR, SATELLITE OBSERVATION, ATMOSPHERIC COMPOSITION, ATMOSPHERIC...
69
69
Jun 2, 2011
06/11
by
Keller, Richar
texts
eye 69
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comment 0
Managing the information generated during the course of a scientific investigation is both a challenging and an essential task for NASA scientists. During an investigation, experimental records must be kept up-to-date and made accessible to all members of a scientific team. After an investigation, a thorough set of records is essential for historical documentation, reproducibility, and overall scientific credibility . These information-management requirements are particularly challenging when...
Topics: AEROSOLS, ATMOSPHERIC COMPOSITION, OZONE, SPATIAL DISTRIBUTION, TEMPORAL DISTRIBUTION, MORPHOLOGY
185
185
Jul 11, 2010
07/10
by
PAUSCHINGER, P.; MATIS, P.; RIECKERT, H
texts
eye 185
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A CLINICAL STUDY WAS MADE OF BLOOD CIRCULATION DECELERATION IN THE LOWER EXTREMITIES IN THE CASE OF LENGTHY IMMOBILIZATION. DATA SHOW THAT INACTIVITY RESULTS IN A DECELERATING INCREASE IN BLOOD SUPPLY, INCREASE IN INPUT INTO THE VENOUS STORAGE CORRESPONDING TO LOSS OF REESTABLISHING FORCE OF THE PERIPHERAL VENOUS SYSTEM IN THE DIRECTION OF A DECREASE IN THE PERIPHERAL REFLUX REQUIREMENT, AND AN INCREASED SUSCEPTIBILITY TO EDEMA. EXPERIMENTAL TESTS SHOW THAT, 400,000 E TRASYLOL I.V. EFFECTIVELY...
Topics: MARS (PLANET), MARS SURFACE, SURFACE PROPERTIES, ATMOSPHERIC COMPOSITION, MAGNETIC FIELDS, MARS...
323
323
Jul 5, 2010
07/10
by
Allen, E. C.; Eder, F. W
texts
eye 323
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Experimental aerodynamic investigations have been made on a .0035 scale model North American Rockwell/General Dynamics version of the space shuttle. Static stability and control data were obtained on the delta wing booster alone (B-20) and with the delta wing orbiter (134D) mounted in various positions on the booster. Six component aerodynamic force and moment data were recorded over an angle of attack range from -10 deg to 24 deg at 0 deg and 6 deg sideslip angles and from -10 deg to 10 deg...
Topics: MARINER 5 SPACE PROBE, VENERA SATELLITES, VENUS ATMOSPHERE, ATMOSPHERIC COMPOSITION, ATMOSPHERIC...
1,106
1.1K
May 22, 2011
05/11
by
NON
texts
eye 1,106
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This quarterly publiction provides archival reports on developments in programs managed by JPL Telecommunications and Mission Operations Directorate (TMOD), which now includes the former communications and Data Acquisition (TDA) Office. In space communications, radio navigation, radio science, and ground-based radio and radar astronomy, it reports on activities of the Deep Space Network (DSN) in planning, supporting research and technology, implementation, and operations. Also included are...
Topics: ATMOSPHERIC CHEMISTRY, ATMOSPHERIC COMPOSITION, DATA BASES, OZONE, SULFUR, TROPOSPHERE, ASIA,...
258
258
Jul 5, 2010
07/10
by
Shimada, K.; Rouklovc, P
texts
eye 258
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A 25.4-cm long externally configured converter was performance tested by electrically heating the emitter to simulate reactor thermal power input. The measured maximum output power was limited by the maximum input power available from the electric RF induction heater. With maximum heater input power, the converter electric output was 178 W (1.95 W/sq cm) at an emitter temperature of 1946 K. This electric output power was smaller than expected. A reactor-core-length (25.4-cm long) cylindrical...
Topics: ATMOSPHERIC COMPOSITION, OPTICAL MEASUREMENT, REMOTE SENSORS, CONFERENCES, ELECTRON DENSITY...
229
229
May 27, 2011
05/11
by
Ray, Richard D.; Bills, Bruce G.; Chao, Benjamin Fon
texts
eye 229
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A general framework for calculating lunar and solar torques on the oceanic tides is developed in terms of harmonic constituents. Axial torques and their associated angular momentum and earth-rotation variations are deduced from recent satellite-altimeter and satellite-tracking tide solutions. Torques on the prograde components of the tide produce the familiar secular braking of the rotation rate. The estimated secular acceleration is approximately -1300 sec/century(sup 2) (less 4% after...
Topics: TOTAL OZONE MAPPING SPECTROMETER, TROPOSPHERE, ATMOSPHERIC COMPOSITION, TROPICAL REGIONS,...
207
207
Jul 5, 2010
07/10
by
Warren, M. E
texts
eye 207
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comment 0
The problem of ameliorating the discomfort of passengers on a large air transport subject to flight disturbances is examined. The longitudinal dynamics of the aircraft, including effects of body flexing, are developed in terms of linear, constant coefficient differential equations in state variables. A cost functional, penalizing the rigid body displacements and flexure accelerations over the surface of the aircraft is formulated as a quadratic form. The resulting control problem, to minimize...
Topics: ATMOSPHERIC ATTENUATION, LASERS, OPTICAL COMMUNICATION, ATMOSPHERIC COMPOSITION, LIGHT...
229
229
Jul 21, 2010
07/10
by
Brune, D
texts
eye 229
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comment 0
The purpose of this investigation was to examine several sulfide containing environments for the presence of phototrophic bacteria and to obtain enriched cultures of some of the bacteria present. The field sites were Alum Rock State Park, the Palo Alto salt marsh, the bay area salt ponds, and Big Soda Lake (near Fallon, Nevada). Bacteria from these sites were characterized by microscopic examination, measurement of in vitro absorption spectra, and analysis of carotenoid pigments. Field...
Topics: ATMOSPHERIC COMPOSITION, CARBON DIOXIDE, EARTH ATMOSPHERE, OXYGEN, CLIMATOLOGY, PHOTOSYNTHESIS,...
215
215
Jul 23, 2010
07/10
by
NON
texts
eye 215
favorite 0
comment 0
No Abstract Available
Topics: ATMOSPHERIC COMPOSITION, GEOPHYSICS, PHYSICAL CHEMISTRY, ATMOSPHERIC HEATING, COSMIC DUST,...
469
469
Jun 21, 2010
06/10
by
Rogers, C. L.; Simmons, B. A
texts
eye 469
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comment 0
Process control and propellant formulations for large motors
Topics: ATMOSPHERIC COMPOSITION, BURNING RATE, GRAVITATIONAL EFFECTS, IGNITION TEMPERATURE, DECOMPOSITION,...
227
227
Sep 20, 2010
09/10
by
Kyriakopoulos, K. J.; Saridis, G. N
texts
eye 227
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comment 0
A control strategy for real-time collision avoidance of a mobile robot in an environment containing moving obstacles is proposed. A dynamic model of the robot, the constraints and assumptions are presented. Objects, including the robot, are modelled as convex polyhedra. Collision avoidance is guaranteed if the minimum distance between the robot and the objects is nonzero. A nominal trajectory is assumed to be known from off-line planning. The main idea is to change the velocity along the...
Topics: ATMOSPHERIC COMPOSITION, INDOOR AIR POLLUTION, PLANTS (BOTANY), BENZENE, CARCINOGENS, ETHYLENE,...
237
237
May 23, 2011
05/11
by
Frink, Neal T
texts
eye 237
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comment 0
A method Is presented for solving turbulent flow problems on three-dimensional unstructured grids. Spatial discretization Is accomplished by a cell-centered finite-volume formulation using an accurate lin- ear reconstruction scheme and upwind flux differencing. Time is advanced by an implicit backward- Euler time-stepping scheme. Flow turbulence effects are modeled by the Spalart-Allmaras one-equation model, which is coupled with a wall function to reduce the number of cells in the sublayer...
Topics: ATMOSPHERIC COMPOSITION, DAYGLOW, OZONE, PHOTOLYSIS, GAS COMPOSITION, REACTION KINETICS, DAYTIME,...
179
179
Jun 21, 2010
06/10
by
Van Houtte, N. A. J
texts
eye 179
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comment 0
Display instrumentation for V/STOL aircraft in simulated landing with steep angle approaches or zero-zero visibility
Topics: ATMOSPHERIC COMPOSITION, MUONS, PARTICLE DENSITY (CONCENTRATION), DENSITY (NUMBER/VOLUME),...
415
415
Jun 3, 2011
06/11
by
Rakow, Glenn Parker; Schnurr, Richard G.; Kapcio, Pau
texts
eye 415
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comment 0
This paper discusses the state of the NASA and BAE SYSTEMS developments using Spacewire. NASA has developed intellectual property that implements Spacewire in Register Transfer Level VHDL for a Spacewire link and router. This design has been extensively verified using directed tests from the Spacewire Standard and design specification, as well as being randomly tested to flush out hard to find bugs in the code. The high level features of the design will be discussed, including the support for...
Topics: ATMOSPHERIC CHEMISTRY, HUMAN REACTIONS, TRANSPORT PROPERTIES, MODELS, ATMOSPHERIC COMPOSITION,...
378
378
Jul 11, 2010
07/10
by
Vlasov, S
texts
eye 378
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comment 0
The Bios-3 experiment on life support in a closed-cycle environment is described. Three subjects lived in a closed-cycle environment for six months. This environment allowed 95% recycling of water and supplied 1/5 of their food. It consisted of four chambers: living quarters, chorella cultivation chamber, and two phytotrons (one for growing wheat, the other for growing vegetables: turnips, carrots, dill, cabbage, etc.). These were grown hydroponically, using xenon lamps for light. For each of...
Topics: ATMOSPHERIC COMPOSITION, CARBON DIOXIDE, CLIMATOLOGY, ATMOSPHERIC TEMPERATURE, CLIMATE CHANGE,...
360
360
May 28, 2011
05/11
by
Schiffer, Robert A.; Unninayar, Sushe
texts
eye 360
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comment 0
The Forum on Climate Variability and Global Change is intended to provide a glimpse into some of the advances made in our understanding of key scientific and environmental issues resulting primarily from improved observations and modeling on a global basis. This publication contains the papers presented at the forum.
Topics: ATMOSPHERIC CHEMISTRY, ATMOSPHERIC COMPOSITION, ATMOSPHERIC PHYSICS, STRATOSPHERE, TROPOSPHERE,...
138
138
Jul 5, 2010
07/10
by
FAYN, V. S
texts
eye 138
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comment 0
A METHOD IS DESCRIBED FOR CONSTRUCTING AUTOMATIC ALGORITHMS. THE METHOD WAS TESTED FOR REAL MATERIALS USING A SEQUENCE OF FRAMES OF SEVERAL MOTION PICTURE FILMS.
Topics: ATMOSPHERIC COMPOSITION, HYDROXYL EMISSION, UPPER ATMOSPHERE, DATA ACQUISITION, NUMERICAL ANALYSIS,...
157
157
May 23, 2011
05/11
by
NON
texts
eye 157
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comment 0
Conducted from 1971 to 1995, the program on Air Transportation Technology dealt with an understanding the design and operation of transport aircraft, the effects of the atmospheric environment on aircraft flight, and the development and use of the National Airspace System. Recent principal goals were to develop and verify new methods for the design and analysis of intelligent flight control systems, aircraft guidance logic for recovery from wake vortex encounter, and robust flight control...
Topics: BIOMASS, METHANE, EFFLUENTS, FIRES, ATMOSPHERIC COMPOSITION, AIR POLLUTION, EXHAUST GASES,...
165
165
Jul 6, 2010
07/10
by
SOKOLENKO, V. F.; TYULPANOV, R. S.; IGNATENKO, Y. V
texts
eye 165
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A TECHNIQUE, USED FOR TREATMENT OF INSTANTANEOUS TOPLER SCHLIEREN PICTURES IN A STUDY OF THE DIFFUSION FLAME STRUCTURE OF PLANE HYDROGEN JETS IN LAMINAR HYDROGEN-AIR FLOWS IN A RECTANGULAR 45 X 45-MM CHANNEL WITH VORTEX GENERATORS, IS DESCRIBED. TEMPERATURE INHOMOGENEITY SCALES VS INITIAL FLOW RATES AND HYDROGEN-AIR RATIOS WERE DETERMINED FOR THE DIFFUSION BURNING OF HYDROGEN-AIR FLOWS.
Topics: OPTICAL PROPERTIES, PLANETARY ATMOSPHERES, PLANETARY RADIATION, ATMOSPHERIC COMPOSITION,...
438
438
May 27, 2011
05/11
by
Cancro, George J.; Tolson, Robert H.; Keating, Gerald M
texts
eye 438
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comment 0
The success of aerobraking by the Mars Global Surveyor (MGS) spacecraft was partly due to the analysis of MGS accelerometer data. Accelerometer data was used to determine the effect of the atmosphere on each orbit, to characterize the nature of the atmosphere, and to predict the atmosphere for future orbits. To interpret the accelerometer data, a data reduction procedure was developed to produce density estimations utilizing inputs from the spacecraft, the Navigation Team, and pre-mission...
Topics: ATMOSPHERIC COMPOSITION, OZONE, STRATOSPHERE, TROPOSPHERE, VERTICAL DISTRIBUTION, TEMPERATE...
368
368
Jun 13, 2011
06/11
by
Schwarze, Gene E
texts
eye 368
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comment 0
The primary means to develop advanced electrical components is to develop new and improved materials for magnetic components (transformers, inductors, etc.), capacitors, and semiconductor switches and diodes. This paper will give an update of the Advanced Power Electronics and Components Technology being developed by the NASA Glenn Research Center for use in future Power Management and Distribution subsystems used in space power systems for spacecraft and lunar and planetary surface power. The...
Topics: ANTARCTIC REGIONS, ATMOSPHERIC COMPOSITION, CLOUD COVER, STRATOSPHERE, VERTICAL DISTRIBUTION,...
491
491
Jun 15, 2011
06/11
by
Prociuk, S. G
texts
eye 491
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comment 0
Progress in aerodynamic research and aircraft design in Ukraine from 1920 to 1930
Topics: ATMOSPHERIC COMPOSITION, ATMOSPHERIC MODELS, ELECTRIC DISCHARGES, GAS COMPOSITION, ORGANIC...
122
122
May 23, 2011
05/11
by
Frazier, D. O.; Hung, R. J.; Paley, M. S.; Long, Y. T
texts
eye 122
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In this work, we describe a preliminary investigation of buoyancy-driven heat transfer during the growth of thin films from solution following exposure to ultraviolet (UV) light. Irradiation of the growth cell occurs at various directions relative to gravitational acceleration. Through numerical computations, the steady-state flow and temperature profiles are simulated during the course of light exposure. Light-induced polymerization accompanies a heat transfer process through a fairly...
Topics: CLIMATOLOGY, ANNUAL VARIATIONS, VORTICES, STRATOSPHERE, ATMOSPHERIC COMPOSITION, LAMINATES,...
178
178
Jun 2, 2011
06/11
by
Grohne, D
texts
eye 178
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comment 0
In the investigation of stability of a two-dimensional laminar flow with respect to small disturbances, a disturbance of the stream function moving downstream (in the direction of the x-axis) by the ''partial wave formula'' is described.
Topics: ICE NUCLEI, POPULATIONS, AEROSOLS, DUST, ATMOSPHERIC PHYSICS, ATMOSPHERIC COMPOSITION, FLORIDA,...
212
212
May 23, 2011
05/11
by
Daniels, Taumi S.; Boyden, Richmond P.; Dress, David A.; Jordan, Thomas L
texts
eye 212
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The paper is an operating manual for the Dynamic Stability Instrumentation System in specific NASA Langley wind tunnels. The instrumentation system performs either a synchronous demodulation or a Fast Fourier Transform on dynamic balance strain gage signals, and ultimately computes aerodynamic coefficients. The dynamic balance converts sting motor rotation into pitch or yaw plane or roll axis oscillation, with timing information provided by a shaft encoder. Additional instruments control model...
Topics: OZONE, ATMOSPHERIC COMPOSITION, EARTH SURFACE, MIXING RATIOS, DIURNAL VARIATIONS, GAS COMPOSITION,...
The Advanced Global Atmospheric Gases Experiment (AGAGE) is an ongoing research project, for which the work carried out by the Scripps Institution of Oceanography. Due to the need to complete AGAGE activities specifically funded under NAGW-2034 that had been delayed, a no-cost extension to this grant was obtained, creating an overlap period between the two grants. Because the AGAGE project is continuing, and a Final Project Report is required only because of the change in grant numbers, it is...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC COMPOSITION, EXPERIMENTATION, RESEARCH,...
483
483
Sep 20, 2010
09/10
by
Bansal, Narottam P
texts
eye 483
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The applications of chronopotentiometry to the study of electrochemical behavior of three technologically important areas of refractory metals, actinides, and oxyanions in molten salts are critically reviewed. Chronopotentiometry is a very versatile diagnostic tool to understand the reaction mechanism of the electrode processes for the electrochemical reduction/oxidation of these electroactive species in molten salt solutions. Well adherent, compact, and uniformly thick coatings of refractory...
Topics: AEROSOLS, ATMOSPHERIC COMPOSITION, REMOTE SENSING, SATELLITE OBSERVATION, WIND MEASUREMENT,...
263
263
May 23, 2011
05/11
by
Katsaros, Kristina B.; Atakturk, Serhad S
texts
eye 263
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Incidence of wave breaking for pure wind driven waves has been studied on Lake Washington at wind speeds up to 8 m/s. Video recordings were employed to identify and categorize the breaking events in terms of micro-scale, spilling and plunging breakers. These events were correlated with the magnitude of the wave spectrum measured with a resistance wire wave gauge and band pass filtered between 6 and 10 Hz. An equivalent percentage of breaking crests were found for spilling and plunging events....
Topics: NATURAL SATELLITES, RHEA (ASTRONOMY), TITAN, TRITON, SATELLITE ATMOSPHERES, SATURN (PLANET),...
228
228
May 27, 2011
05/11
by
Sliney, Harold E
texts
eye 228
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A number of ceramic coatings of different compositions containing lead monoxide (PbO) were studied to determine their relative merits as dry-film lubricants. Lead monoxide is known to be an effective solid lubricant at elevated temperatures, and this oxide was the main component in all compositions studied. Friction and wear properties were determined at temperatures from 750 to 1250 F, at a sliding velocity of 430 feet per minute, and at a normal load of 1 kilogram. In all of the coatings, PbO...
Topics: BIBLIOGRAPHIES, INTERNATIONAL GEOPHYSICAL YEAR, METEOROLOGY, ROCKET LAUNCHING, SPACECRAFT...
435
435
Jul 25, 2010
07/10
by
Triantafyllopoulos, Spiro
texts
eye 435
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Data classification and storage are tasks typically performed by application specialists. In contrast, information users are primarily non-computer specialists who use information in their decision-making and other activities. Interaction efficiency between such users and the computer is often reduced by machine requirements and resulting user reluctance to use the system. This thesis examines the problems associated with information retrieval for non-computer specialist users, and proposes a...
Topics: ANTARCTIC REGIONS, ATMOSPHERIC COMPOSITION, NITROGEN OXIDES, OZONE DEPLETION, STRATOSPHERE,...
468
468
Jul 11, 2010
07/10
by
NON
texts
eye 468
favorite 0
comment 0
No Abstract Available
Topics: ASTRONOMICAL SPECTROSCOPY, ATMOSPHERIC COMPOSITION, VENUS ATMOSPHERE, CARBON DIOXIDE CONCENTRATION,...
322
322
Aug 2, 2010
08/10
by
Thompson, Randolph C.; Richards, W. Lanc
texts
eye 322
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The buckling characteristics of a titanium matrix composite hat-stiffened panel were experimentally examined for various combinations of thermal and mechanical loads. Panel failure was prevented by maintaining the applied loads below real-time critical buckling predictions. The test techniques used to apply the loads, minimize boundary were shown to compare well with a finite-element buckling analysis for previous panels. Comparisons between test predictions and analysis for this panel are...
Topics: ATMOSPHERIC COMPOSITION, HIGH RESOLUTION, LOW NOISE, SPECTRAL RESOLUTION, SPECTROSCOPIC ANALYSIS,...
293
293
May 29, 2011
05/11
by
Choi, Michael K
texts
eye 293
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The X-Ray Telescope (XRT) is an instrument on the National Aeronautics and Space Administration (NASA) SWIFT spacecraft. The thermoelectric cooler (TEC) for the charge coupled device (CCD) of the XRT requires a radiator temperature of -35 C or colder, and a goal of -55 C to minimize the damage by radiation. The waste heat rejected from the TEC to the radiator is in the 8 W to 20 W range. In the Phase A baseline design, the XRT radiator is mounted to the rear end of the XRT telescope tube and is...
Topics: ATMOSPHERIC COMPOSITION, VOLCANOLOGY, UPPER ATMOSPHERE, STRATOSPHERE, TROPOSPHERE, ATMOSPHERIC...
272
272
Jun 3, 2011
06/11
by
Russell, C. K.; Malone, T. W.; Cato, S. N
texts
eye 272
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The international space welding experiment was designed to evaluate the universal handtool (UHT) functions as a welding, brazing, coating, and cutting tool for in-space operations. The UHT is an electron beam welding system developed by the Paton Welding Institute (PWI), Kiev, Ukraine, and operated a 8 kV with up to 1 kW of power. In preparation for conducting the space welding experiment, cosmonauts were trained to properly operate the UHT and correctly process samples. This Technical...
Topics: COATINGS, NICKEL, CARBON DIOXIDE, ATMOSPHERIC COMPOSITION, METAL COMBUSTION, METAL PROPELLANTS,...
350
350
Jul 11, 2010
07/10
by
PRIOUX-GUYONNEAU, M.; BUCHEL, L
texts
eye 350
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THE EFFECTS OF RESTRAINT AND SUDDEN VARIATION OF ENVIRONMENTAL TEMPERATURE ON THE LIPID AND GLUCIDE METABOLISM OF RATS WERE STUDIED. IN THE FREE RAT, COOLING CAUSED AN INCREASE IN PLASMA-FREE FATTY ACID CONTENT AND HYPERGLYCEMIA. WITH ANIMALS KEPT IN RESTRAINT AND AT NORMAL TEMPERATURE, A DECREASE OCCURRED IN THE PLASMA-FREE FATTY ACID CONTENT AND AN INCREASE OCCURRED IN GLYCEMIA. A COMBINATION OF THE TWO STRESSES DID NOT CHANGE THE PLASMA-FREE FATTY ACID CONTENT, BUT INDUCED PRONOUNCED...
Topics: AMMONIA, VENERA 8 SATELLITE, VENUS ATMOSPHERE, ATMOSPHERIC COMPOSITION, COLORIMETRY, SILICON...
488
488
Jul 12, 2010
07/10
by
Coe, P. L., Jr
texts
eye 488
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comment 0
The overall aerodynamic drag characteristics of a conventional wheelchair were defined and the individual drag contributions of its components were determined. The results show that a fiftieth percentile man sitting in the complete wheelchair would experience an aerodynamic drag coefficient on the order of 1.4.
Topics: ATMOSPHERIC CHEMISTRY, ATMOSPHERIC CIRCULATION, MESOSPHERE, STRATOSPHERE, TRANSPORT PROPERTIES,...
220
220
Jul 6, 2010
07/10
by
Lew, H. G
texts
eye 220
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An analytical study of the theory of ignition and burning of a plastic material immersed in an atmosphere of a space cabin which may be subjected to gravity force changes is considered. The hazardous condition in a space cabin environment where the changes of gravity may effect the combustion process is evaluated. The model considered the analysis of the coupled gas and solid phases and is based on the premise that material heating leads to the formation of pyrolysis gases from the decomposed...
Topics: ATMOSPHERIC COMPOSITION, METEOROLOGICAL PARAMETERS, SUPERSONIC FLIGHT, ATMOSPHERIC CIRCULATION,...
Results are summarized from three areas of ozone research: (1) continued analysis of the global distribution of total ozone to extend the global ozone atlas to summarize 15 years (1957-72) of ground based observations; (2) analysis of balloon borne ozonesonde observations for Arosa, Switzerland, and Hohenpeissenberg, Germany (GFR); (3) contined processing of the (Orbiting Geophysical Observatory-4) satellite data to complete the analysis of the stratospheric ozone distribution from the...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC COMPOSITION, OZONE, STRATOSPHERE, BALLOON...
223
223
Jun 11, 2011
06/11
by
Gerber, Hermann E
texts
eye 223
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Potential error sources for measurements with the Cloud Integrating Nephelometer (CIN) are discussed and analyzed, including systematic errors of the measurement approach, flow and particle-trajectory deviations at flight velocity, ice-crystal breakup on probe surfaces, and errors in calibration and developing scaling constants. It is concluded that errors are minimal, and that the accuracy of the CIN should be close to the systematic behavior of the CIN derived in Gerber et al (2000). Absolute...
Topics: BIOGEOCHEMISTRY, VOLCANOLOGY, CHEMICAL REACTIONS, CARBON, SULFUR, ATMOSPHERIC COMPOSITION,...
152
152
Jul 5, 2010
07/10
by
Bertrand, M
texts
eye 152
favorite 0
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No Abstract Available
Topics: ATMOSPHERIC COMPOSITION, NITROGEN IONS, UPPER ATMOSPHERE, ABSORPTION CROSS SECTIONS, PHOTOCHEMICAL...
59
59
Jun 18, 2010
06/10
by
Dayhoff, M. O.; Eck, R. V.; Lippincott, E. R
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Thermodynamic equilibria in planetary atmospheres and in origin of organic matter - determination of amino acid pairing and sequences in proteins
Topics: AMINO ACIDS, PLANETARY ATMOSPHERES, PROTEINS, SEQUENCING, THERMODYNAMIC EQUILIBRIUM,...
217
217
Jun 18, 2010
06/10
by
Mikirov, A. YE
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High altitude geophysical satellite measurements of atmospheric night brightness for ozone concentration estimation
Topics: ATMOSPHERIC COMPOSITION, NIGHT SKY, OZONE, SATELLITE OBSERVATION, ATMOSPHERIC COMPOSITION,...
