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May 23, 2011
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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,...
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May 31, 2011
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A small isolated NASA facility provides assistance to industry in the design, testing, and operation of oxygen systems. White Sands Test Facility (WSTF) was originally established to test rocket propulsion systems for the Apollo program. The facility's role was later expanded into testing characterization, flammability and toxicity characteristics of materials. Its materials and components test methods were adopted by the American society for Testing and Materials. When research and testing...
Topics: FABRY-PEROT INTERFEROMETERS, ATMOSPHERIC COMPOSITION, CARBON DIOXIDE CONCENTRATION, SIGNAL...
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May 28, 2011
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This supplemental issue of Aeronautical Engineering, A Continuing Bibliography with Indexes (NASA/SP-1999-7037) lists reports, articles, and other documents recently announced in the NASA STI Database. The coverage includes documents on the engineering and theoretical aspects of design, construction, evaluation, testing, operation, and performance of aircraft (including aircraft engines) and associated components, equipment, and systems. It also includes research and development in...
Topics: OZONE, OZONOMETRY, CHLOROFLUOROCARBONS, ATMOSPHERIC COMPOSITION, SPACE TRANSPORTATION SYSTEM, SPACE...
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615
Jul 12, 2010
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Reasonable space systems concepts were systematically identified and defined and a total system was evaluated for the space disposal of nuclear wastes. Areas studied include space destinations, space transportation options, launch site options payload protection approaches, and payload rescue techniques. Systems level cost and performance trades defined four alternative space systems which deliver payloads to the selected 0.85 AU heliocentric orbit destination at least as economically as the...
Topics: AEROSOLS, GEOPHYSICAL SATELLITES, GROUND BASED CONTROL, MATHEMATICAL MODELS, SOLAR RADIATION,...
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Jul 12, 2010
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The RRA contains tabulations for monthly and annual means, standard deviations, skewness coefficients for wind speed, pressure temperature, density, water vapor pressure, virtual temperature, dew-point temperature, and the means and standard deviations for the zonal and meridional wind components and the linear (product moment) correlation coefficient between the wind components. These statistical parameters are tabulated at the station elevation and at 1 km intervals from sea level to 30 km...
Topics: ATMOSPHERIC COMPOSITION, GLOBAL AIR SAMPLING PROGRAM, OZONE, PARTICLE SIZE DISTRIBUTION,...
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Jul 11, 2010
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No Abstract Available
Topics: ASTRONOMICAL SPECTROSCOPY, ATMOSPHERIC COMPOSITION, VENUS ATMOSPHERE, CARBON DIOXIDE CONCENTRATION,...
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A fast-acting valve includes an annular valve seat that defines an annular valve orifice between the edges of the annular valve seat, an annular valve plug sized to cover the valve orifice when the valve is closed, and a valve-plug holder for moving the annular valve plug on and off the annular valve seat. The use of an annular orifice reduces the characteristic distance between the edges of the valve seat. Rather than this distance being equal to the diameter of the orifice, as it is for a...
Topics: AEROSOLS, MATHEMATICAL MODELS, ATMOSPHERIC COMPOSITION, CARBON DIOXIDE CONCENTRATION, SENSITIVITY,...
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Sep 20, 2010
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An induction heating head includes: a length of wire having first and second opposite ends and being wound in a flat spiral shape to form an induction coil; a capacitor connected to the first and second ends of the wire, the induction coil and capacitor defining a tank circuit; and a flexible, elastomeric body molded to encase the induction coil. When a susceptor is placed in juxtaposition to the body, and the tank circuit is powered, the susceptor is inductively heated.
Topics: ATMOSPHERIC COMPOSITION, ATMOSPHERIC CHEMISTRY, POSTLAUNCH REPORTS, SPACE SHUTTLES, SPACE...
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Jul 23, 2010
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No Abstract Available
Topics: ATMOSPHERIC COMPOSITION, GEOPHYSICS, PHYSICAL CHEMISTRY, ATMOSPHERIC HEATING, COSMIC DUST,...
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Research on planetary atmospheres, trajectory optimization, wave propagation, solid state physics, radiation shielding, and spacecraft antennas
Topics: INFRARED SPECTROSCOPY, SURFACE PROPERTIES, WATER VAPOR, MARINER 9 SPACE PROBE, MARS ATMOSPHERE,...
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593
May 27, 2011
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The motor/encoder (henceforth referred to as the UUT) test sequence began with a baseline functional evaluation, which demonstrated that the motor satisfied the operating torque, cogging torque, winding resistance, and mechanical requirements of SOW. In addition, the encoder electrical requirements were verified, as well as the alignment of the encoder outputs relative to the motor shaft position. There were no discrepancies observed in this portion of the test. The UUT was then exposed to a...
Topics: AEROSOLS, CONDENSATION NUCLEI, TWO DIMENSIONAL MODELS, ALTITUDE, WINTER, ATMOSPHERIC COMPOSITION,...
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Jul 23, 2010
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The Moderate-Resolution Imaging Spectrometer (MODIS), as presently conceived, is a system of two imaging spectroradiometer components designed for the widest possible applicability to research tasks that require long-term (5 to 10 years), low-resolution (52 channels between 0.4 and 12.0 micrometers) data sets. The system described is preliminary and subject to scientific and technological review and modification, and it is anticipated that both will occur prior to selection of a final system...
Topics: ATMOSPHERIC COMPOSITION, LINE SPECTRA, RADIOMETERS, REMOTE SENSING, SPACEBORNE EXPERIMENTS,...
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May 27, 2011
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This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1998. Included are citations for Technical Publications, Conference Publications, Technical Memorandums, Contractor Reports, Journal Articles and Book Publications, Meeting Presentations, Technical Talks, and Patents.
Topics: AIRBORNE LASERS, DEPLOYMENT, NEW ZEALAND, PACIFIC OCEAN, TRACE CONTAMINANTS, ATMOSPHERIC...
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Sep 20, 2010
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The Office of Exploration (OEXP) at NASA Headquarters has been tasked with defining and recommending alternatives for an early 1990's national decision on a focused program of human exploration of the solar system. The Mission Analysis and System Engineering (MASE) group, which is managed by the Exploration Studies Office at the Lyndon B. Johnson Space Center, is responsible for coordinating the technical studies necessary for accomplishing such a task. This technical report, produced by the...
Topics: ATMOSPHERIC CHEMISTRY, ATMOSPHERIC COMPOSITION, ATMOSPHERIC MODELS, PHOTOCHEMICAL REACTIONS, SPACE...
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Sep 20, 2010
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A printer port interface is provided which converts the printer port on a personal computer to a general purpose bus so that a number of external devices or microprocessor peripheral integrated circuits may be connected to a personal computer via the printer port on the personal computer. This interface enables the printer port to emulate a simple 8 bit microprocessor. The interface device connects the external device to the personal computer and in write mode, received data from the personal...
Topics: ATMOSPHERIC COMPOSITION, SPACE TRANSPORTATION SYSTEM, SPACE TRANSPORTATION SYSTEM FLIGHTS,...
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Sep 20, 2010
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Given here are extended abstracts of papers presented at the 16th International Laser Radar Conference, held in Cambridge, Massachusetts, July 20-24, 1992. Topics discussed include the Mt. Pinatubo volcanic dust laser observations, global change, ozone measurements, Earth mesospheric measurements, wind measurements, imaging, ranging, water vapor measurements, and laser devices and technology.
Topics: ATMOSPHERIC COMPOSITION, ATMOSPHERIC CHEMISTRY, POSTLAUNCH REPORTS, SPACE SHUTTLES, SPACE...
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May 22, 2011
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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,...
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Jul 21, 2010
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This publication, one of a series formerly titled The Deep Space Network Progress Report, documents DSN progress in flight project support, tracking and data acquisition research and technology, network engineering, hardware and software implementation, and operations. In addition, developments in Earth-based radio technology as applied to geodynamics, astrophysics and the radio search for extraterrestrial intelligence are reported.
Topics: AEROASSIST, MODELS, REMOTE SENSING, STATISTICAL ANALYSIS, ANNUAL VARIATIONS, ATMOSPHERIC...
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May 23, 2011
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A workshop on the National Polar-orbiting Operational Satellite System (NPOESS) ozone measurements requirements was held August 30-31, 1995, at the NOAA Science Center, Camp Springs, Maryland. The workshop was sponsored by the Office of Research and Applications of the National Environmental Satellite, Data, and Information Service as part of an internal concept study (ICS) for the Integrated Program Office (IPO). The purpose of the workshop was to acquire scientifically-based ozone...
Topics: RESEARCH PROJECTS, RAYLEIGH SCATTERING, RAMAN SPECTRA, INTERNATIONAL COOPERATION, ATMOSPHERIC...
