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  • Other Sources  (3,652)
  • INSTRUMENTATION AND PHOTOGRAPHY  (1,130)
  • SPACE RADIATION  (811)
  • BIOTECHNOLOGY  (632)
  • STRUCTURAL MECHANICS  (610)
  • Cell & Developmental Biology
  • Inorganic Chemistry
  • LUNAR AND PLANETARY EXPLORATION
  • MATHEMATICS
  • 1980-1984
  • 1970-1974  (3,652)
  • 1930-1934
  • 1972  (1,744)
  • 1970  (1,908)
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  • 1980-1984
  • 1970-1974  (3,652)
  • 1930-1934
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  • 101
    Publication Date: 2005-11-27
    Description: Assessment of techniques for determining eigenvalues of large systems
    Keywords: STRUCTURAL MECHANICS
    Type: NASA. LEWIS RES. CENTER SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 2 JUL. 1970; P 4-27
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  • 102
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Precision radiometric and spectrometric intensity measurements for calibration of space telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 775-780
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  • 103
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Applying observing concepts and data handling techniques of ground-based astronomy to design of instruments for space stations
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 657-659
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  • 104
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Literature survey of infrared image recording systems and multispectral scanners
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 605-613
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  • 105
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Possible feeding systems for long term space missions after Apollo Applications Program
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 145-149
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  • 106
    Publication Date: 2005-11-27
    Description: Electronographic image converters for far ultraviolet stellar spectroscopy and direct star field imaging
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL PROC. OF THE 2D WORKSHOP ON VOLTAGE BREAKDOWN IN ELECTRON. EQUIPMENT AT LOW AIR PRESSURE 30 JUN. 1970; P 41-47
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  • 107
    Publication Date: 2005-11-27
    Description: Using finite element method in analysis and design of optical space telescopes
    Keywords: STRUCTURAL MECHANICS
    Type: OPT. TELESCOPE TECHNOL. 1970; P 401-415
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  • 108
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Figure sensing interferometry for control of astronomical mirror optics
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 297-301
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  • 109
    Publication Date: 2005-11-27
    Description: Design of symmetrical mirror with quartz foam core for spaceborne optical telescope
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: OPT. TELESCOPE TECHNOL. 1970; P 281-282
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  • 110
    Publication Date: 2005-11-27
    Description: Structural analysis for optimal load carrying substrate members of lightweight astronomical mirror
    Keywords: STRUCTURAL MECHANICS
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 257-280
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  • 111
    Publication Date: 2005-11-27
    Description: Food system integration into aircraft as joint responsibility of airframe manufacturers and air carriers
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 193-202
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  • 112
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    In:  CASI
    Publication Date: 2005-11-27
    Description: System integration of Boeing 747 lower lobe galley
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 183-191
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  • 113
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    In:  CASI
    Publication Date: 2005-11-27
    Description: High temperature oven with fast-circulated hot air as possible equipment for spacecraft
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 169-170
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  • 114
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    Publication Date: 2005-11-27
    Description: Transworld airline feeding operations
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 112-114
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  • 115
    Publication Date: 2005-11-27
    Description: Systems analysis of feeding system for Manned Orbiting Laboratory
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 43-55
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  • 116
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Detecting pulse signals in insulation systems from application of alternating voltage
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL PROC. OF THE 2D WORKSHOP ON VOLTAGE BREAKDOWN IN ELECTRON. EQUIPMENT AT LOW AIR PRESSURE 30 JUN. 1970; P 117-122
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  • 117
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Trace gas control method for decontamination of integrated life support system
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 253-283
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  • 118
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Weight and power aspects of integrated life support system having either nitrogen, helium, or neon atmosphere
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 715-738
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  • 119
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Environmental control and life support systems design criteria for prolonged manned space flight mission
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 573-696
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  • 120
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    Publication Date: 2005-11-27
    Description: Vacuum decomposition of human waste materials during prolonged space flight in controlled atmosphere
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 425-472
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  • 121
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Oxygen and nitrogen storage requirements for integrated life support system
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 65-108
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  • 122
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    Publication Date: 2005-11-27
    Description: Outline of study on regenerative advanced integrated life support systems
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 9-64
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  • 123
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Water electrolysis system for carbon dioxide reduction and oxygen generation in closed cabin atmosphere
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 117-156
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  • 124
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    In:  CASI
    Publication Date: 2005-11-27
    Description: Description of dragline sample-acquisition mechanism for sampling planetary surface soils
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: PROC. OF THE 4TH AEROSPACE MECH. SYMP. 15 JAN. 1970; P 149-155
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  • 125
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    Publication Date: 2005-11-27
    Description: User checklist for spacecraft boom selection with review of structural, electrical and mechanical properties
    Keywords: STRUCTURAL MECHANICS
    Type: JPL PROC. OF THE 4TH AEROSPACE MECH. SYMP. 15 JAN. 1970; P 51-54
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  • 126
    Publication Date: 2005-11-30
    Description: The Apollo 16 SWC experiment is a continuation of the earlier experiments; however, an essential change was introduced in the solar wind particle collection technique. Platinum surfaces were incorporated in the collector foil, and use was made of a layer technique for distinguishing particles of different energies and different directions of arrival. The improvements and the expanded scope of the Apollo 16 experiment, relative to the earlier SWC experiments, can be summarized as follows: elimination of possible residual dust contamination by treating the platinum foil sections with dilute hydrofluoric acid before analysis; increased accuracy of solar wind argon abundance; determination of solar wind albedo; and search for helium in the energy range above approximately 40 KeV/nucleon.
    Keywords: SPACE RADIATION
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 10 p
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  • 127
    Publication Date: 2005-11-30
    Description: The passionate dream of the oppressed solar flare forecaster is the scientific discovery of the cause, the energy source, and the observable antecedent conditions for the solar flare. This tunnel vision has had a profound and deleterious effect on the state-of-the-art. It has diverted attention from many promising approaches and relegated them to limbo. More importantly, it has actually inhibited the scientific search for the underlying physical mechanisms. Examples of neglected aspects of the problem cover the entire range from observing techniques and equipment to the availability and accuracy of the archived scientific data. A cursory inspection of this data leads to an obvious conclusion: there are at least two suns up there.
    Keywords: SPACE RADIATION
    Type: NASA, Washington Phys. of the Space Environment; p 157-171
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  • 128
    Publication Date: 2005-11-30
    Description: The He-4 and Ne-20 contents in sections of the Surveyor 3 support strut samples were determined by optical and scanning electron microscopy and are compared to the results of the Apollo solar wind composition (SWC) experiments. The He-4/Ne-20 ratio in the samples from the sunlit side of the strut was approximately 300; the ratios determined in Apollo 12 lunar fines and SWC foil were below 100. The He-4/He-3 ratios were also determined, and the ratio obtained from Surveyor 3 material is higher than those found with Apollo 11 and 12 SWC experiments. The effects of spallation by cosmic rays or solar protons, stripping by cosmic ray or energetic solar alpha particles, recycling of solar wind He and radiogenic Ne, He from terrestrial atmosphere, mass discrimination near the moon, mass dependence of trapping probability, diffusion, and contamination by lunar dust are considered.
    Keywords: SPACE RADIATION
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 201-208
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  • 129
    Publication Date: 2005-11-30
    Description: The TV camera visor was placed in a vacuum chamber and examined for alpha radioactivity using an alpha-scattering instrument, and plates covered with the same paint and made at the same time as the visor were used as a control. The spectra of visor and plates are very similar, and it is concluded that the gross activity on the visor is due entirely to the activity of the paint. The data were used to obtain the amount of Po-210 activity on the lunar surface. It is felt that the lack of detected alpha radioactivity does not indicate a lack of activity on the moon, since dust layers were knocked off the visor.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 177-180
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  • 130
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    Publication Date: 2005-11-30
    Description: The results of an investigation on the effects of earth seasonal changes on solar activity, particularly sunspots, are given. These results show corpuscular and electromagnetic activity increased during the equinoctial months. In addition the electromagnetic aspect tends to increase during the winter months. It was suggested that seasonal changes in sunspot numbers may be caused by the tidal forces and the processional torques exerted by the various planets in the solar atmosphere.
    Keywords: SPACE RADIATION
    Type: Significant Accomplishments in Sci., 1970; p 164-170
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  • 131
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    Publication Date: 2005-11-30
    Description: Hydromagnetic heating in the solar wind was investigated using the heating model in which fast-mode hydromagnetic waves propagate outward from below the base and deposit energy by collisionless damping. Ray paths were found by solving Hamilton's equations. As the ray propagates along its path, it will damp, supplying thermal energy to the solar wind gas. The strong agreement of these results with observations is clear indication that the primary nonthermal heat source in the solar wind is the collisionless damping of hydromagnetic waves.
    Keywords: SPACE RADIATION
    Type: Significant Accomplishments in Sci., 1970; p 140-143
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  • 132
    Publication Date: 2005-11-27
    Description: Acoustic, vibration, and shock environments in designing orbital telescopes
    Keywords: STRUCTURAL MECHANICS
    Type: OPT. TELESCOPE TECHNOL. 1970; P 389-400
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  • 133
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    Publication Date: 2005-11-27
    Description: Structural design for large spaceborne telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 351-357
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  • 134
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    Publication Date: 2005-11-27
    Description: Design of 3 meter orbital telescope
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 55-64
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  • 135
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    Publication Date: 2005-11-27
    Description: Structures and subsystems of space telescopes for OAO program
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: OPT. TELESCOPE TECHNOL. 1970; P 41-54
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  • 136
    Publication Date: 2005-11-27
    Description: Coupled structure-propulsion system instability /POGO/ prevention on space shuttle
    Keywords: STRUCTURAL MECHANICS
    Type: NASA. LEWIS RES. CENTER SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 2 JUL. 1970; P 249-262
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  • 137
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    Publication Date: 2005-11-27
    Description: Different techniques of preserving food for military field rations
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 151-163
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  • 138
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    Publication Date: 2005-11-27
    Description: Crude biomasses for nutritional requirements of spacecraft crews
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 141-144
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  • 139
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    Publication Date: 2005-11-27
    Description: Dehydrated and rehydratable meat-type foods for space flight feeding
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 121-123
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  • 140
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    Publication Date: 2005-11-27
    Description: Food selection and preparation plans for Sealab 3
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 79-85
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  • 141
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    Publication Date: 2005-11-27
    Description: Requirements for Apollo Applications Program feeding system
    Keywords: BIOTECHNOLOGY
    Type: AEROSPACE FOOD TECHNOL. 1970; P 57-60
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  • 142
    Publication Date: 2005-11-27
    Description: Advantages and problems of preserving food with ionizing radiation
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 87-100
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  • 143
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    Publication Date: 2005-11-27
    Description: Functional analysis on feeding system for Manned Orbiting Laboratory
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 31-36
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  • 144
    Publication Date: 2005-11-27
    Description: Improved prototype space feeding system for Manned Orbiting Laboratory missions
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 37-41
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  • 145
    Publication Date: 2005-11-27
    Description: Proton degradation of aluminum mirror surfaces with overcoatings of magnesium fluoride or lithium fluoride
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: OPT. TELESCOPE TECHNOL. 1970; P 213-217
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  • 146
    Publication Date: 2005-11-27
    Description: Supersonic panel flutter of space shuttle heat shields with flexible supports
    Keywords: STRUCTURAL MECHANICS
    Type: SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 2 JUL. 1970; P 199-221
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  • 147
    Publication Date: 2005-11-27
    Description: Feeding system requirements for Manned Orbiting Laboratory
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 15-19
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  • 148
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    Publication Date: 2005-11-27
    Description: Temperature and humidity control in integrated life support system
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 285-335
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  • 149
    Publication Date: 2005-11-27
    Description: Design and development of deployment fixture for simulated zero gravity testing of large area solar array
    Keywords: STRUCTURAL MECHANICS
    Type: JPL PROC. OF THE 4TH AEROSPACE MECH. SYMP. 15 JAN. 1970; P 83-89
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  • 150
    Publication Date: 2005-11-27
    Description: Combination shutter and filter changing mechanism of spacecraft vidicon camera operating on Mariner Mars 69 and 71 spacecraft
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: PROC. OF THE 4TH AEROSPACE MECH. SYMP. 15 JAN. 1970; P 75-81
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  • 151
    Publication Date: 2005-11-27
    Description: Mechanical and thermal properties of materials for five spacecraft boom designs
    Keywords: STRUCTURAL MECHANICS
    Type: JPL PROC. OF THE 4TH AEROSPACE MECH. SYMP. 15 JAN. 1970; P 43-45
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  • 152
    Publication Date: 2005-11-27
    Description: Customer opinion of design of aerospace mechanisms
    Keywords: STRUCTURAL MECHANICS
    Type: JPL PROC. OF THE 4TH AEROSPACE MECH. SYMP. 15 JAN. 1970; P 91-94
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  • 153
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    Publication Date: 2005-11-27
    Description: Instrumentation and control subsystem for closed ecological life support system
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 519-571
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  • 154
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    Publication Date: 2005-11-27
    Description: Solid electrolyte process for carbon dioxide removal and oxygen generation in integrated life support system
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 207-251
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  • 155
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    Publication Date: 2005-11-27
    Description: Freeze-dried diet and personal hygiene for space crew
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 473-518
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  • 156
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    Publication Date: 2005-11-27
    Description: Water reclamation and purification method for integrated life support system
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 337-424
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  • 157
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    Publication Date: 2005-11-27
    Description: Atmospheric pressure and composition control system for manned spacecraft cabin atmosphere
    Keywords: BIOTECHNOLOGY
    Type: TRADE-OFF STUDY AND CONCEPTUAL DESIGNS OF REGENERATIVE ADVANCED INTEGRATED LIFE SUPPORT SYSTEMS JAN. 1970; P 109-115
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  • 158
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    Publication Date: 2005-11-27
    Description: Performance summary and spacecraft applications of booms with future trends
    Keywords: STRUCTURAL MECHANICS
    Type: JPL PROC. OF THE 4TH AEROSPACE MECH. SYMP. 15 JAN. 1970; P 55-72
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  • 159
    Publication Date: 2009-11-16
    Description: Performance characteristics of Plumbicon camera tube and flyback highlight-discharge electron gun
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 571-582
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  • 160
    Publication Date: 2009-11-17
    Description: Operational procedures for food service in nuclear submarines
    Keywords: BIOTECHNOLOGY
    Type: NASA, WASHINGTON AEROSPACE FOOD TECHNOL. 1970; P 63
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  • 161
    Publication Date: 2006-07-18
    Description: The development of rapid and accurate wind tunnel techniques to measure convective heating distributions in complex reentry configurations is discussed. Major emphasis was put on the infrared camera technique. Its essence is the measurement of infrared emission from the surface of a wind tunnel model as a function of time. Prior calibration of the infrared camera relates the emission to the surface temperature of the model. The time history of the surface temperature can then be related to the heating rate by standard techniques. The output of the camera is an electrical signal that is tape-recorded in analog form, then digitized and processed by computer, so that automated and relatively rapid data reduction can be accomplished. In addition, the camera produces real-time visual displays of the infrared emission as pictures on an oscilloscope screen. These pictures give immediate indications of hot and cool spots on the model.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Space Shuttle Aerothermodyn. Technol. Conf., vol. 2; p 645-660
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  • 162
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    In:  CASI
    Publication Date: 2004-10-30
    Description: Space shuttle liftoff dynamics
    Keywords: STRUCTURAL MECHANICS
    Type: SPACE TRANSPORTATION SYSTEM TECNOL. SYMP., VOL. 2 JUL. 1970; P 101-122
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  • 163
    Publication Date: 2006-03-12
    Description: The problem of inverse scattering at fixed angular momentum is considered. The problem is particularized to the case of nonlocal separable interactions. A brief survey of the inverse problem for nonlocal separable interactions is presented. This problem can be solved exactly by integration. It amounts to solving singular integral equations of the Hilbert-Mushkhelishvili type, which have been studied extensively in the past and appear in many areas of physics, including theory of elasticity and dispersions relations in high energy physics.
    Keywords: MATHEMATICS
    Type: NASA. Ames Res. Center Math. of Profile Inversion; 13 p
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  • 164
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    In:  CASI
    Publication Date: 2006-03-12
    Description: Topics in biophysics are summarized in which radiation data inversion problems occur. The topics fall into two main categories. The first relates to information acquired about the distance environment through seeing, hearing, etc. The second relates to the use of electromagnetic, acoustic, or other radiation for diagnostic purposes, either at a bulk or a molecular level.
    Keywords: MATHEMATICS
    Type: NASA. Ames Res. Center Math. of Profile Inversion; 4 p
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  • 165
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    In:  CASI
    Publication Date: 2006-03-12
    Description: A brief survey of recent theoretical progress on the inverse scattering problem for radiation scattering from reflective boundaries and variable indices of refraction. The theory of radiation scattering is concerned primarily with the far-field relations between incident and scattered radiation in the presence of a scattering object. The primary, or direct, problem of this theory is to develop quantitative information about these scattering relations from a knowledge of the scattering object. The secondary, or inverse, problem, on the other hand, is to determine the nature of the object from an analysis of the scattering relations.
    Keywords: MATHEMATICS
    Type: NASA. Ames Res. Center Math. of Profile Inversion; 10 p
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  • 166
    Publication Date: 2006-04-26
    Description: The development of a mathematical model for human reaction to variables involved in transportation systems is discussed. The techniques, activities, and results related to defining certain specific inputs to the model are presented. A general schematic diagram of the problem solution is developed. The application of the model to short haul air carrier operations is examined.
    Keywords: BIOTECHNOLOGY
    Type: NASA. Langley Res. Center Symp. on Vehicle Ride Quality; p 211-228
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  • 167
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Thermal electron density and cosmic ray flux in galactic radio emissions
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 140-144
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  • 168
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Relativistic electron and positron intensity distributions in interplanetary regions
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 134-139
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  • 169
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Electron energy and thermal emission in solar X-ray bursts
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 127-129
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  • 170
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Statistical analysis of X ray line emission from cosmic radiation source
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 178-181
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  • 171
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Interstellar matter in stellar extinction curve
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 162-165
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  • 172
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Nimbus 3 infrared detectors for remote sensing of global ozone
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 11-14
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  • 173
    Publication Date: 2006-04-24
    Description: The Boltzmann equation is considered in terms of the problem of relaxation of some initial distribution function which depends only on velocities, to Maxwell's distribution function. The Boltzmann equation is given for the relaxation problem in which the distribution function f(t, u, v) is time dependent and is also dependent on two other variables u and v (the velocities of rigid spherical molecules). An iteration process is discussed in which the velocity space u, v is subdivided into squares, the distribution function in each square being approximated by the second-order surface from the values of the distribution function at nine points. The set of all of these points forms a network of u, v values at the nodes of which the distribution function can be found.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 79-84
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  • 174
    Publication Date: 2006-04-24
    Description: The temporal behavior is considered of a quiescent mixture of gases of different temperatures with spatially uniform distribution. The process of heating a cold gas by a hot gas is treated on the basis of the Boltzmann kinetic equation. The mixture is assumed to be composed of absolutely hard smooth spheres, and the initial distribution functions for each gas is taken to the Maxwellian. With such a choice of initial distribution functions, it is shown that the solution of the Boltzmann kinetic equation depends only on the velocity modulus and the time.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 34-42
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  • 175
    Publication Date: 2006-04-24
    Description: The methods are reviewed which are utilized in principal attempts to obtain the numerical solution or modeling of the Boltzmann equation over a broad range of Knudsen numbers. The primary methods considered are the Monte Carlo and the discrete velocities methods. The conculsions drawn from the analysis include the following: (1) The Monte Carlo methods are not well suited in the area of small Knudsen numbers. (2) Among the Monte Carlo methods, the Bird method appears to be the most attractive, since it is more directly related to the Boltzmann equation. (3) The deterministic methods, which include the discrete ordinate technique, offer great possibilities but require exceedingly large computer times. (4) The use of approximating equations in combination with the discrete velocities method will possibly improve computation time and reduce the required memory volume.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 1-18
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  • 176
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Evolution of pulsating variable binary star by nuclear interactions
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 170-173
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  • 177
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Low energy cosmic radiation spectrum analysis for IMP 4 data on solar system
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 145-149
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  • 178
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Solar radio bursts caused by energetic electron propagation through corona
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 130-133
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  • 179
    Publication Date: 2006-04-25
    Description: Nimbus 3 observations of ultraviolet solar flux variations
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 119-122
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  • 180
    Publication Date: 2006-04-26
    Description: It is shown that resolution increased with increasing averaging interval. This is accompanied by an increase in the uncertainty with which the standard algorithm for cosmic ray stations is localized.
    Keywords: MATHEMATICS
    Type: Morphology of the Quiet and Disturbed Ionosphere; p 95-98
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  • 181
    Publication Date: 2006-04-26
    Description: A method is examined for calculating the error of experimental data from a standard neutron monitor with the multiplicity of neutron generation. It is shown that use of the Poisson distribution to estimate the real statistical error is inadequate. The method proposed is for analysis of low-amplitude periodicities in the cosmic-ray variations.
    Keywords: SPACE RADIATION
    Type: Morphology of the Quiet and Disturbed Ionosphere; p 79-81
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  • 182
    Publication Date: 2006-04-26
    Description: Ride quality research to determine criteria to describe vehicle performance characteristics which will insure passenger comfort is discussed. The manner in which disciplines of vehicle environmental dynamics, structural dynamics, and electromechanical measurements are combined to define passenger environments is described. The activities of many governmental and private agencies in the field of passenger comfort are examined.
    Keywords: BIOTECHNOLOGY
    Type: Symp. on Vehicle Ride Quality; p 229-246
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  • 183
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    Publication Date: 2006-04-25
    Description: Lifetimes of interstellar polyatomic molecules
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 158-161
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  • 184
    Publication Date: 2006-04-25
    Description: NASA computer program for dynamic structural analysis in stress and thermal deformation problems
    Keywords: STRUCTURAL MECHANICS
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 221-224
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  • 185
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    In:  CASI
    Publication Date: 2006-04-25
    Description: Extragalactic origin of ultrahigh energy cosmic rays
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 153-155
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  • 186
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    Publication Date: 2006-04-25
    Description: Galactic origin of pulsars and cosmic radiation sources
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 150-152
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  • 187
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    Publication Date: 2006-04-25
    Description: Analysis on soft solar X-ray spectra of solar flares
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 123-126
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  • 188
    Publication Date: 2006-04-24
    Description: A functional equation is derived for a spatially homogeneous distribution function and examples of spatially homogeneous gas motions are considered. Numerical calculation was conducted for one such motion with the use of a model equation.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 19-33
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  • 189
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    Publication Date: 2006-04-25
    Description: Magnesium fluoride- and lithium fluoride-optical coatings for aluminum mirror in space astronomy
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 302-305
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  • 190
    Publication Date: 2006-04-24
    Description: Various theoretical models are discussed for the interaction of gaseous atoms with solids at energies of approximately 10 eV. The surface is modeled by a one- and three-dimensional aggregate of atoms with different initial conditions and lattice parameters. In calculating the accommodation coefficients, the direct integration of the equations of motion of gaseous molecules and atoms in the crystal lattice of the solid is used. An analysis of the advantages and the drawbacks of the models, as well as the possibilities of the analytical solutions in a one-dimensional case, is given. The dependence of the energy and the normal and the tangential momenta accommodation coefficients on the collision parameters is obtained.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 124-146
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  • 191
    Publication Date: 2006-04-24
    Description: The further development of a method for approximating the Boltzmann equation is considered and a case of pseudo-Maxwellian molecules is treated in detail. A method of approximating the collision frequency is discussed along with a method for approximating the moments of the Boltzmann collision integral. Since the return collisions integral and the collision frequency are expressed through the distribution function moments, use of the proposed methods make it possible to reduce the Boltzmann equation to a series of approximating equations.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 85-123
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  • 192
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    Publication Date: 2006-04-26
    Description: It is shown based on data on the cosmic-ray neutron component, ionospheric soundings, and measurements of cosmic radio-emission absorption at Vostok station (Antarctica) that the ionization of the lower ionosphere increases during low intensity of Forbush-type cosmic rays. This is manifested in increased absorption and the appearance of strong sporadic layers in the E-region.
    Keywords: SPACE RADIATION
    Type: Morphology of the Quiet and Disturbed Ionosphere; p 74-77
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  • 193
    Publication Date: 2006-04-26
    Description: Features of the cosmic-ray variations in the geomagnetic pole region and a smooth decrease in the cosmic rays intensity as a result of increased solar activity are reported. A 66-day variation of the cosmic rays was registered, in agreement with the maximum frequency and power of solar chromospheric flares.
    Keywords: SPACE RADIATION
    Type: Morphology of the Quiet and Disturbed Ionosphere; p 113-116
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  • 194
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    Publication Date: 2006-04-25
    Description: Optical electron beam recording system for ATS television camera
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 350-353
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  • 195
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    Publication Date: 2006-04-25
    Description: Design and performance of extreme ultraviolet optical telescope for space astronomy
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 295-298
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  • 196
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    Publication Date: 2006-04-25
    Description: Heating and bulk speed of solar wind
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 108-110
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  • 197
    Publication Date: 2006-04-25
    Description: Earth resources analyses by multispectral terrain photography with Apollo 9 cameras
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 5-10
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  • 198
    Publication Date: 2006-04-24
    Description: Chemically reacting gas mixtures are considered for the case in which inelastic collisions occur significantly less frequently than elastic ones. The first approximation of the general solution of the Boltzmann equation is developed and is shown to contain an additional scaler term. The concentration, the mean mass velocity, and the temperature of the mixture are determined and the rate of reaction in the first approximation is formulated. Tables are presented which give reaction rate values obtained by both the first and second approximation for different activation energies. The tables show that the first approximation is sufficient for practical purposes for calculating the reaction rate.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 180-188
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  • 199
    Publication Date: 2006-04-24
    Description: The principal difficulties in numerical solution of the Boltzmann equation are considered. The study is aimed at formulating a numerical solution in such a manner that it contains a minimum amount of excess information at the distribution function level. It is pointed out that the accurate calculation of the distribution function at each point in phase space requires a tremendous number of operations, due to the necessity of solving five-fold quadratures in the collision integral. This results in the operational memory of the digital computer being insufficient to store all the data on the distribution functions at the necessary points in phase space. An algorithm is constructed involving successive iterations of the Boltzmann equation which does not require storage of each step of the new distribution function.
    Keywords: MATHEMATICS
    Type: Numerical Methods in the Theory of Rarefied Gases; p 43-63
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  • 200
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    Publication Date: 2006-04-25
    Description: Threshold law for electron atom impact ionization
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 114-118
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