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  • General Chemistry  (4,740)
  • Inorganic Chemistry  (3,865)
  • INSTRUMENTATION AND PHOTOGRAPHY  (2,550)
  • BIOSCIENCES  (1,698)
  • THERMODYNAMICS AND COMBUSTION  (1,363)
  • LUNAR AND PLANETARY EXPLORATION
  • 1970-1974  (14,683)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Radiography (1973)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: Radiography is discussed as a method for nondestructive evaluation of internal flaws of solids. Gamma ray and X-ray equipment are described along with radiographic film, radiograph interpretation, and neutron radiography.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Nondestructive Testing; p 63-99
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  • 2
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    Miniature battery-operated electromagnetic flowmeter (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-12-21
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Life Sci. Publ., Vol. 2; 7 p
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  • 3
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    Cold cathode gage /Lunar atmosphere detector/ (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Apollo 12 cold cathode gage and lunar atmospheric pressure measurements
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 93-97
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  • 4
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    Apollo 12 multispectral photography experiment (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Apollo 12 multispectral photography and film processing techniques
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 103-111
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  • 5
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    Lunar surface closeup stereoscopic photography (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-01
    Description: Apollo 12 closeup stereophotographs of lunar dust, rocks, and soils
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 183-188
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  • 6
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    Solar corona photography, part B (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Photographic observations of the solar corona by the Apollo 16 command module pilot while in lunar orbit are reported. These were designed to provide data on outer coronal forms and intensities to elongation angles of 25 deg. The results of Apollo 15 solar corona photography verified the procedures and provided the first photographs of identifiable coronal streamers curving at elongation angles of some 10 deg. By using the Apollo 15 data, exposure settings were optimized for Apollo 16, and the results show a significant improvement in photometric quality over the large range of brightness to be photographed. Ground observations of the inner solar corona (to approximately 2 solar radii from Sun center) indicate a general lack of coronal structure, and results of data reduction thus far show no streamer structure at large elongation angles.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 2 p
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  • 7
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    Astronomical photography. Part A: Gum nebula, galactic cluster, and zodiacal light photography (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: It is reported that the Apollo 16 command module astronomical photography was performed with the specific objective of capitalizing on the uniqueness of the double umbra as a vantage point to collect astronomical data that are obtainable only near our Moon. For this reason, these data will be compared directly to analogous photography performed from Earth orbit during Project Mercury and the Gemini Program as well as to the Apollo-duplicated photography taken from sites on the Earth surface. Comparison with Earth-based photography should yield direct information on the Earth airglow layer and on atmospheric scattering and extinction.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 2 p
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  • 8
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    Photogrammetry using Apollo 16 orbital photography, part B (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Discussion is made of the Apollo 15 and 16 metric and panoramic cameras which provided photographs for accurate topographic portrayal of the lunar surface using photogrammetric methods. Nine stereoscopic models of Apollo 16 metric photographs and three models of panoramic photographs were evaluated photogrammetrically in support of the Apollo 16 geologic investigations. Four of the models were used to collect profile data for crater morphology studies; three models were used to collect evaluation data for the frequency distributions of lunar slopes; one model was used to prepare a map of the Apollo 16 traverse area; and one model was used to determine elevations of the Cayley Formation. The remaining three models were used to test photogrammetric techniques using oblique metric and panoramic camera photographs. Two preliminary contour maps were compiled and a high-oblique metric photograph was rectified.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 5 p
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  • 9
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    Photogrammetry and altimetry. Part A: Apollo 16 laser altimeter (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The laser altimeter measures precise altitudes of the command and service module above the lunar surface and can function either with the metric (mapping) camera or independently. In the camera mode, the laser altimeter ranges at each exposure time, which varies between 20 and 28 sec (i.e., 30 to 43 km on the lunar surface). In the independent mode, the laser altimeter ranges every 20 sec. These altitude data and the spacecraft attitudes that are derived from simultaneous stellar photography are used to constrain the photogrammetric reduction of the lunar surface photographs when cartographic products are generated. In addition, the altimeter measurements alone provide broad-scale topographic relief around the entire circumference of the moon. These data are useful in investigating the selenodetic figure of the moon and may provide information regarding gravitational anomalies on the lunar far side.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 5 p
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  • 10
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    Auditory system (1973)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The physical correlations of hearing, i.e. the acoustic stimuli, are reported. The auditory system, consisting of external ear, middle ear, inner ear, organ of Corti, basilar membrane, hair cells, inner hair cells, outer hair cells, innervation of hair cells, and transducer mechanisms, is discussed. Both conductive and sensorineural hearing losses are also examined.
    Keywords: BIOSCIENCES
    Type: BioTechnol., Inc. Bioastronaut. Data Book, 2d Ed.; p 667-691
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  • 11
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    Toxicology (1973)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Oxygen toxicity is examined, including the effects of oxygen partial pressure variations on toxicity and oxygen effects on ozone and nitrogen dioxide toxicity. Toxicity of fuels and oxidizers, such as hydrazines, are reported. Carbon monoxide, spacecraft threshold limit values, emergency exposure limits, spacecraft contaminants, and water quality standards for space missions are briefly summarized.
    Keywords: BIOSCIENCES
    Type: BioTechnol., Inc. Bioastronaut. Data Book, 2d Ed.; p 455-487
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  • 12
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    Examination of the Surveyor 3 surface sampler scoop (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The operation and external appearance of the surface sampling scoop are discussed. An attempt was made to measure the magnitude of the existing adhesion between the lunar soil and the various surfaces of the scoop.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 100-114
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  • 13
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    Ablator manufacturing (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Studies are being conducted to determine how manufacturing-induced defects affect the performance of ablative heat shields. If commonly occurring defects do not affect material performance, simpler manufacturing techniques can be used, quality control requirements can be relaxed, repair and rework operations can be held to a minimum, and thus the total manufacturing cost can be reduced.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA Space Shuttle Technol. Conf.; p 475-504
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  • 14
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    NASA-ARC 36 inch airborne infrared telescope (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A 36 in. aperture telescope is being developed for installation aboard a NASA-Lockheed C-141A aircraft. This airborne observatory will permit observation of infrared emission at altitudes above 45,000 ft above much of the infrared-absorbing atmospheric water vapor. The telescope will look through a movable open port in the aircraft fuselage. A porous spoiler, upstream from the open port, will attenuate pressure disturbances and permit operation at ambient temperatures and pressures without an obscuring window. The telescope's entire structure is supported by a 16 in. spherical air bearing, which effectively isolates it from angular aircraft motions. This air bearing support, with inertial stabilization and star tracking, will permit net line of sight stability of better than 2 arcsec rms.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: 6th Aerospace Mech. Symp.; p 81-88
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  • 15
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    Astronomical photography, part T (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Photographic observations of astronomical interest conducted during the Apollo 15 mission are discussed. Procedures used in photographing the solar corona are described together with calibration and reduction methods. In addition, selected preliminary results obtained from the photography are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Its Apollo 15 Prelim. Sci. Rept.; 39 p
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  • 16
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    First earthshine photography from lunar orbit, part S (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The first photographs of the moon taken with earthshine illumination by the Apollo 15 crew were examined. Emphasis in the analysis was placed on a comparison of predicted exposures and obtained exposures. The results of the investigation indicate the following: (1) The predicted exposure of the maria areas and the obtained exposures were in reasonably close agreement. (2) The apparent-albedo values obtained for the floor of Aristarchus Crater are seven times greater than those for the maria.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center Apollo 15 Prelim. Sci. Rept.; 7 p
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  • 17
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    Manufacturing developments in insulation application (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Manufacturing development studies have been conducted to provide information on the fabrication and handling characteristics of a number of candidate multilayer insulation systems. The application of these complex, lightweight insulation systems to large-scale, flight-type cryogenic tankage and other structures has of necessity required the development of new methods, processes, and tooling concepts. Results of some of the studies that have contributed to the advancement of cryogenic technology are presented. The insulation systems that are of primary importance for future application are those using the sliced foam spacers, the net type spacers, the glass fiber paper spacers, and the Superfloc system which consists of tufts of dacron fibers flocked on the surface of the radiation shields.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: Cryog. Res. at MSFC: Res. Achievements Rev., Vol. 4, No. 2; p 73-92
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  • 18
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    Design for advanced insulation systems (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The design of principal multilayer insulation (MLI) systems being investigated by Marshall Space Flight Center and its contractors for application to flight-type cryogenic tankage for long-term storage in space vehicles is described. The MLI systems were designed for application to a 105 in. diameter cryogenic test tank to simulate full-scale design and installation methods representative of flight-type hardware. The MLI systems selected for design represent systems suitable for use on space vehicles such as the modular nuclear vehicles that require application of thicknesses up to 6 in. The MLI systems are lightweight and structurally efficient.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: Cryog. Res. at MSFC: Res. Achievements Rev., Vol. 4, No. 2; p 53-72
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  • 19
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    Multilayer high performance insulation materials (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A number of tests are required to evaluate both multilayer high performance insulation samples and the materials that comprise them. Some of the techniques and tests being employed for these evaluations and some of the results obtained from thermal conductivity tests, outgassing studies, effect of pressure on layer density tests, hypervelocity impact tests, and a multilayer high performance insulation ambient storage program at the Kennedy Space Center are presented.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: Cryog. Res. At MSFC: Res. Achievements Rev., Vol. 4, No. 2; p 93-98
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  • 20
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    Fire extinguishment in hypobaric and hyperbaric environments (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Work that has been performed to provide information on the effects of various fire extinguishing agents in special atmospheres is discussed. Data used in the development of both equipment and techniques for manned spacecraft and related equipment are discussed. The equipment includes a hypobaric chamber suitable for low pressure use and a hyperbaric chamber for high pressure operation. The effectiveness of agents in weightless environment is also discussed.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: Conf. on Mater. for Improved Fire Safety; p 163-169
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  • 21
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    Toxicology of spacecraft materials (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The procedures for determining the toxicity of products outgassed from spacecraft structures are discussed. The test equipment involved in the tests and the criteria for acceptability are described. The use of animals as the final step in determining toxicity of a spacecraft environment is explained.
    Keywords: BIOSCIENCES
    Type: Conf. on Mater. for Improved Fire Safety; p 207-210
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  • 22
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    The combustion process (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The effect of thermodynamic, chemical, and physical properties on the combustion of materials is discussed. The mechanisms which produce and support combustion of various materials are examined. The effects of free radical reactions, convection and gravitational effects on combustion rates, and changes in flame propagation due to size and shape of surfaces are described.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: Conf. on Mater. for Improved Fire Safety; p 3-7
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  • 23
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    The improvement of star positions by photographic methods (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A brief description is given of the new astrometric camera and of the program on which it is being employed. This is the photography of the southern sky so that each star appears on at least four overlapping plates. Sets of star coordinates measured on each plate are combined with a limited set of provisional meridian places to give an accurate set of relative star positions which are independent of the meridian system together with a set of residuals for each plate-star. The technique is based on a simple geometrical model of image formation on photographic plates. Current investigations are concerned with the elimination of sources of systematic deviation from this model.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 199-208
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  • 24
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    An F1 Schmidt satellite camera and the methods of plate measurement and reduction (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The f1 Hewitt camera is a field flattened Schmidt system of 60cm aperture. The salient features of this equipment are briefly described. Details of the methods of plate measurement are then given. The plate reduction is carried out in two stages. The plate is first calibrated using the photogrammetric method. The formulae usually quoted have been extended to take account of the large distortion introduced by the field flattening lens. In the second stage, the satellite measurements are reduced to satellite positions corrected for refraction, aberration, and when necessary, phase.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Photo. Astrometric Technique; p 141-154
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  • 25
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    Properties of hollow square gravitational wave detectors (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Antennas are described with gravitational radiation properties such as polarization, directivity, and scalar and tensor characteristics. These antenna devices are mechanically resonant systems in the shape of a hollow square with fundamental frequencies in the Hz range. An antenna characteristic is that the absorption cross section for quadrupole radiation at the normal frequency of vibration is the same as that of the fundamental if the damping factors are the same. The absorption cross section of quadrupole gravitational radiation is calculated for a class-1 detector of a cylindrical cross section and for a class-2 detector shaped like a hollow square.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Proc. of the Conf. on Exptl. Tests of Gravitation Theories; p 41-44
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  • 26
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    Improvements in Ross type astrometric objectives (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: It is shown that aspheric deformations of the first and fourth elements of the four element Ross objective can be introduced to permit one to obtain improved color corrections for astrometric purposes. The usual monochromatic aberrations are as well corrected as for the standard Ross lens. In addition, one can eliminate or reduce additional aberrations, such as secondary spectrum, chromatic spherical aberration, chromatic coma and chromatic distortion. The resulting objectives are suitable for use as intermediate and long focus astrometric objectives covering large angle fields.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 61-84
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  • 27
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    Introduction to passive nutation dampers (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Coning motion can prevent photographic and TV cameras and other oriented spacecraft experiments from maintaining a steady scan, and it can introduce a ripple in the high-gain communication system. Nutation dampers are used to remove this type of spacecraft instability. The first nutation damper flown in a missile for the stabilization of the gyroscope consisted of a hollow ring that was partially filled with mercury, and the sloshing of the mercury dissipated the nutational energy. A similar mercury-ring damper was used in the Pioneer 1 lunar probe in 1958 and became the first nutation damper to be used in space. Since then many types of nutation dampers have been designed for spin-stabilized spacecraft ranging in size from small scientific satellites to large space stations.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 73-81
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  • 28
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    Dynamic behavior of the mercury damper (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The dynamic behavior of the mercury nutation damper is investigated. Particular attention is paid to the eccentric annular mercury configuration, which is the final continuous ring phase that occurs in the operation of all mercury dampers. In this phase, damping is poorest, and the system is closely linear. During the investigation, the hydrodynamic problem is treated as three dimensional, and extensive use is made of a variational principle of least-viscous frictional power loss. A variational principle of least-constraint is also used to advantage. Formulas for calculating the behavior of the mercury damper are obtained. Some confirmatory experiments were performed with transparent ring channels on a laboratory gyroscope. Selected movie frames taken during wobble damping are shown along with the results of film measurements.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 9-16
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  • 29
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    Experiment D015: Night image intensification (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A performance test of a night image intensification system for use as a visual aid by the crewmen in Gemini is reported. The equipment package consisted of (1) image intensification camera; (2) camera control unit; (3) viewing monitor; (4) recording monitor and photographic recorder; and (5) monitor electronics and equipment control unit. Representative photographs are predominantly of lights and clouds. Photographs of three different sections of coastline reveal a contrast between the images of land and ocean. These images range in quality from good to poor.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 431-443
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  • 30
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    Experiment S005: Synoptic terrain photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Several tentative conclusions can be derived from the results of the synoptic terrain photography experiment, with particular reference to the results from the Gemini mission. The photographs are additional confirmation of the feasibility and value of orbital photographs for geology, geography, and oceanography. The photographs have proven to be of value in the study of the tectonic problems. Although vertical or near-vertical photography is superior to oblique photography, photographs from the Gemini 12 mission have proven that low oblique photographs, and even high oblique photographs, may be of value for certain situations. The oblique views of the Makran Range were useful substitutes for vertical photographs. Equivalent aerial coverage by vertical photographs would have necessitated a camera altitude of several hundred miles. The oblique views of the Sierra Madre Oriental have been used in the search for structures that are approximately normal to the horizon and are enhanced by the foreshortening because of the photograph.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: The Gemini Program: Phys. Sci. Expt. Sum.; p 337-381
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  • 31
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    Experiment M403: Electrostatic charge (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Experiment M403 was flown on the Gemini 4 and 5 spacecraft in an effort to discover whether the spacecraft could accumulate sufficient excess electric charge to constitute a hazard for later Gemini-Agena rendezvous missions. An attempt was made to measure the electric field terminating on a small area of the spacecraft retrograde adapter section and to calculate the total spacecraft charge from this measured field value. The Gemini 5 instrument was inhibited from responding to electric fields that corresponded to a charge on the spacecraft. However, readings were obtained on the Gemini 5 mission that were of as great or greater magnitude than those obtained on the Gemini 4 mission. This could be interpreted as an indication that the contribution of a net spacecraft charge to the Gemini 4 measurements was negligible. An operational measurement that was performed on a later rendezvous mission was indicative of a very small exchange of charge between the Gemini spacecraft and the Agena vehicle.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: The Gemini Program: Phys. Sci. Expt. Sum.; p 115-124
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  • 32
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    Experiment S013: Ultraviolet astronomical camera (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Recordings of the stellar ultraviolet radiation in the wavelength region from 2000 to 4000 angstroms are reported. An analysis of the surface temperatures of the stars, the absorption effects occurring in the atmospheres of the stars, and the absorption effects of the interstellar dust is made from the photographic data obtained. In addition to gathering basic astrophysical data about hot, young stars, the experiment is used to clarify the problems and techniques of uv photography of stars from manned spacecraft.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center The Gemini Program: Phys. Sci. Expt. Sum.; p 81-99
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  • 33
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    Experiment M411: Two color earth limb photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Some simple calculations were made regarding the scattered light phenomenon of a sunlit earth limb. It was assumed that the light was to be scattered by an atmosphere irradiated by a zenith sun. Calculations were made with several different scattering coefficients assignable to various wavelengths of the extended visual region. The dependence of the excess blue-limb elevation was less obviously determined by the scattering angle than was suspected. It is reasonable to surmise that the variation of the values of excess blue-limb elevation originated principally from the red-limb variance, because the form of the blue-limb profiles (at least in their upper part) was more regular than was that of the red-limb profiles.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 101-114
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  • 34
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    Gyroscope test of gravitation: An analysis of the important perturbations (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Two perturbations, the earth's quadrupole moment and the earth's revolution around the sun, are discussed. Schiff's proposed gyroscope test of gravitation is analyzed, along with the capability of deciphering each separate contribution to the angular velocity of spin precession.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Proc. of the Conf. on Exptl. Tests of Gravitation Theories; p 82-84
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    Nutation dampers for manned spacecraft (1971)
    In:  CASI
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    Description: Nutation dampers are examined from the standpoint of application to manned space stations with artificial gravity. Typical spacecraft concepts and associated control requirements are considered, and examples of the dampers proposed for these spacecraft are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: 5th Aerospace Mech. Symp.; p 103-109
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    Low nutation-rate dampers (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Mission requirements plus spacecraft weight and power constraints often reduce the excitation frequency of a nutation damper below 1 cpm. Since attitude stability is determined by damper performance, maximum effectiveness at low rates is demanded. Presented are design considerations that low-frequency dampers require, along with descriptions of two low-frequency systems: the Direct Measurement Explorer 1 and the Small Astronomy Satellite A (SAS-A).
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 97-102
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    Response characteristics of a thermal-heliotrope solar-array orientation device (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The thermal heliotrope is a passive solar-array orientation device containing a bimetallic helix that rotates when activated by solar energy. The rate and extent of the rotation depends upon the properties of the two metals and the temperature of the helix. An energy-balance analysis is performed to determine the temperature distribution in the helix. By initially restricting the analysis, a simplified equation governing the response of the heliotrope is obtained. In order to gain insight into the response of the heliotrope, a series of experiments were performed. The results of these tests and the implications are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 33-39
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  • 38
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    Conditions for local thermodynamic equilibrium in uranium (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Model for calculation of parameters for local thermodynamic equilibrium in uranium
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: FLORIDA UNIV. RES. ON URANIUM PLASMAS AND THEIR TECHNOL. APPL. 1971; P 173-178
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  • 39
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    Holographic method of monitoring the performance of a large telescope mirror (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Holographic monitoring method for astronomical telescope mirror
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 311-314
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  • 40
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    Evaluation of surface figure during manufacturing (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Interferometric control of surface figures during astronomical mirror manifacturing
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 291-296
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  • 41
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    General philosophy of mirror support systems (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Design requirements for mirror support systems for terrestrial telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 381-387
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  • 42
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    Thermal design of a satellite telescope (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Thermal control techniques in designing large orbiting telescopes
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 359-379
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  • 43
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    Some optical systems for a spaceborne telescope (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Optical mirror systems for spaceborne telescope
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 321-325
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  • 44
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    The effects of processing on the dimensional stability of beryllium mirrors (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Processing effects on dimensional stability of beryllium mirrors for telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 181-188
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  • 45
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    Possibilities for automating optical manufacture (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Computerized design and automated manufacture of optical lenses
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 137-139
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  • 46
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    Image converters and image intensifiers (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Optical properties of image converters, image intensifiers, and photocathodes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 501-509
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  • 47
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    Electronography (1970)
    In:  CASI
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    Publication Date: 2005-11-27
    Description: Large roll-film electronographic camera for aerial reconnaissance and astronomical observations
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 511-521
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  • 48
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    High resolution measurements in space astronomy and the requirements for diffraction limited optics (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: High resolution measurements and diffraction limited optics of large space telescope
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 33-38
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  • 49
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    Quarantine, microbiological, and heat sterilization technologies (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Subjects on planetary flight missions, supporting technology, microbial release probabilities, heat sterilization cycles
    Keywords: BIOSCIENCES
    Type: NNING, EVALUATION, AND ANAL. STUDIES IN PLANETARY QUARANTINE AND SPACECRAFT STERILIZATION 15 JUN. 1970 (SEE N70-35042 19-04) 19-04/
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  • 50
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    The image isocon and related developments for astronomical space telescopes (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Developing image isocon camera tube for astrometric measurements in space
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 591-597
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  • 51
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    Thermodynamics of the internal combustion engine (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Pollution aspects of internal combustion engine thermodynamics
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: ET. AND THERMODYN. IN HIGH TEMP. GASES 1970; P 31-40
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  • 52
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    Figure control of active primary mirrors (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Figure control computer system for active primary astronomical mirrors
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 315-320
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  • 53
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    Spacecraft control (1970)
    In:  CASI
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    Description: Spacecraft attitude and reaction control, and Wiener-type filters for multivariable nonlinear processes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: SPACE PROGRAMS SUM. NO. 37-61, VOL. 3 28 FEB. 1970; P 149-164
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  • 54
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    Surface smoothness of large astronomical mirrors - A collection of foucaultgrams (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Surface smoothness foucaultgrams of large astronomical mirrors
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 153-164
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  • 55
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    Considerations relating to use of a large astronomical telescope in space (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Optical properties of large spaceborne telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 83-87
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  • 56
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    Conflicting sensory orientation cues as a factor in motion sickness (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Conflicting sensory data relating to spatial orientation from visual, vestibular, and somatosensory systems inducing motion sickness
    Keywords: BIOSCIENCES
    Type: SYMP. ON THE ROLE OF THE VESTIBULAR ORGANS IN SPACE EXPLORATION 1970; P 45-52
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  • 57
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    A quantitative study of vestibular adaptation in humans, part 3 (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Mathematical model for short-term adaptation to vestibular stimuli in relation to angular velocity of nystagmus and angular velocity of head rotation
    Keywords: BIOSCIENCES
    Type: NAVAL AEROSPACE MED. INST. 4TH SYMP. ON THE ROLE OF THE VESTIBULAR ORGANS IN SPACE EXPLORATION 1970; P 369-393
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  • 58
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    Certain aspects of onboard centrifuges and artificial gravity (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Design criteria for onboard centrifuges in orbital space stations to create artificial gravity
    Keywords: BIOSCIENCES
    Type: NAVAL AEROSPACE MED. INST. 4TH SYMP. ON THE ROLE OF THE VESTIBULAR ORGANS IN SPACE EXPLORATION 1970; P 329-346
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  • 59
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    Electrophysiological experiments on the isolated surviving labyrinth of elasmobranch fish to analyze the responses to linear accelerations (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Linear acceleration effects on semicircular canals in elasmobranch fishes
    Keywords: BIOSCIENCES
    Type: NAVAL AEROSPACE MED. INST. 4TH SYMP. ON THE ROLE OF THE VESTIBULAR ORGANS IN SPACE EXPLORATION 1970; P 159-166
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  • 60
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    A resume of sessions on motion sickness (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Neurological elements in vomiting sequence and components of emetic reflex in motion sickness
    Keywords: BIOSCIENCES
    Type: NAVAL AEROSPACE MED. INST. 4TH SYMP. ON THE ROLE OF THE VESTIBULAR ORGANS IN SPACE EXPLORATION 1970; P 117-120
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  • 61
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    The particles and fields subsatellite magnetometer experiment (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: It is reported that the objectives of the particles and fields subsatellite (PFS) magnetometer experiment are to calculate the interior electrical conductivity of the moon, to survey the remanent magnetization of the lunar surface, and to study the interaction of the moon with its plasma environment. The magnetometers also support the PFS particle experiment by providing onboard magnetic sectoring and a posteriori pitch angle data and plasma diagnostics.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept. te]; 13 p
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    Biomedical experiments. Part A: Biostack experiment (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The biostack experiment is described which was designed to study the biologic effects of individual heavy nuclei of galactic cosmic radiation during space flight outside the magnetosphere of the earth. Specifically, the biostack experiment was designed to promote research on the effects of high energy/high Z particles of galactic cosmic radiation on a broad spectrum of biologic systems, from the molecular to the highly organized and developed forms of life. The experiment was considered unique and scientifically meritorious because of its potential yield of information - currently unavailable on earth - on the interaction of biologic systems with the heavy particles of galactic cosmic radiation.
    Keywords: BIOSCIENCES
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 10 p
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    X-ray fluorescence experiment (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The X-ray fluorescence spectrometer, carried in the scientific instrument module bay of the command and service module, was used for orbital mapping of the lunar surface composition and X-ray galactic observations during transearth coast. The lunar surface measurements involved observations of the intensity and characteristic energy distribution of the secondary or fluorescent X-rays produced by the interaction of solar X-rays with the lunar surface. The astronomical observations consisted of relatively long periods of X-ray measurement of preselected galactic sources such as Cygnus (Cyg X-1) and Scorpius (Sco X-1).
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 14 p
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    Far UV camera/spectrograph (1972)
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    Publication Date: 2005-11-30
    Description: The far UV camera/spectrograph deployed in the Apollo 16 mission recorded light in the invisible band of wavelengths between 50 and 160 nm, approximately one-third the wavelength that can penetrate the atmosphere of the earth to ground based telescopes. The photographs obtained show hydrogen and other gases in the solar wind and interplanetary media, and provide new data on stars, nebulae, and galaxies. The instrument is described, the experimental goals outlined, and the preliminary results discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 14 p
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    Lunar orbital mass spectrometer experiment (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: A lunar orbital mass spectrometer carried by the Apollo 16 command and service module was used to detect the lunar atmosphere and to search for active lunar volcanism. The experimental procedure and results are described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 6 p
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    Gamma ray spectrometer experiment (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The transearth coast period of the Apollo 16 mission provided an opportunity to study the astronomical sources of gamma radiation. This experiment was used to aid compositional identification for geochemical mapping of the lunar surface.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 8 p
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    UV photography of the earth and moon (1972)
    In:  CASI
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    Description: This experiment obtained imagery of the earth and the moon at a series of wavelength intervals in the near ultraviolet. These photographs were used to aid in the interpretation of the UV appearance of other planets in the solar system, especially mars and venus. The filter and film characteristics are described, as well as the ozone absorption coefficient curve.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 5 p
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    Rocket combustion instability suppression with cavity resonators (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: Properly tuned Helmholtz resonator damping devices are an effective method for eliminating high frequency combustion instability in rocket engine thrust chambers. A program was implemented with the objective of extending Helmholtz resonator theory to thrust chamber conditions to establish a standard design procedure. By using systematic cold-flow testing and hot firings, empirical design equations were formulated. An effort is currently underway to extend the design theory to other types of acoustical damping devices such as quarter-wave tubes and slots.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: Res. Achievements Rev., Vol. 4, No. 6; p 53-59
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    Ultraviolet spectrometer experiment (1973)
    In:  CASI
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    Description: The original scientific objectives and the achieved results are discussed. The upper atmosphere was found to have a variable temperature, with a mean exospheric temperature of 325 K; composed predominantley of CO2. Measurements of hydrogen and ozone are analyzed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Mariner Mars 1971 Proj., Vol. 5; p 53-61
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    The vestibular system (1973)
    In:  CASI
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    Description: The end organs, central nervous system connections, and static and dynamic characteristics of the vestibular system are presented. Vestibular servation in man and vestibular side effect prevention from space missions involving artificial gravity generation are also considered. Vestibular models and design criteria for rotating space vehicles are appended.
    Keywords: BIOSCIENCES
    Type: BioTechnol., Inc. Bioastronaut. Data Book, 2d Ed.; p 533-609
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    Reusable surface insulation materials research and development (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: Reusable surface insulation is considered a prime candidate for heat shielding large areas of the space shuttle vehicle. The composition and fabrication of RSI materials are discussed, followed by evolution of RSI and current problems, physical and thermal properties, arc plasma test data and results, and material improvement research. Finally, a summary of RSI technology status is presented.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA Space Shuttle Technol. Conf.; p 373-433
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    Materials and design for ablative heat shields (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The goal of the ablation technology program is to bring ablation research and development to a high state of readiness for application to space shuttle vehicles. Some recent results and current work in the areas of materials, designs, and refurbishment for ablative TPS are reported. Future research and development needs are also presented.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA Space Shuttle Technol. Conf.; p 505-536
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    Thermal protection system trade studies on ablators and reuseable surface insulation (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: Analytical trade studies are presented that consider passive TPS configurations using the following material categories: (1) reuseable surface insulation - surface-coated rigidized ceramic fiber; (2) low density charring ablators; and (3) carbon-carbon and high density ablators for leading edge areas. Emphasized are effects on TPS weight by variations in entry trajectories and material thermal characteristics.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA Space Shuttle Technol. Conf.; p 303-334
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    An assessment of radiative metallic thermal protection systems for space shuttle (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The metallic thermal protection system technology program for the space shuttle is reviewed for the areas of environmental uncertainties, materials data base, TPS design concepts and heat-shield panel configurations, testing and evaluation of materials, panels, and complete systems.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA Space Shuttle Technol. Conf.; p 267-302
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    Surveyor television camera, selected materials and electronic components, Appendix C (1972)
    In:  CASI
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    Description: The locations of various parts of the Surveyor camera are presented. Tables were prepared with emphasis on: (1) exterior parts and surfaces that are directly exposed to space, (2) parts that shield others from space radiation, (3) representative or unique materials, and (4) electronic devices that may contain unique or well-characterized materials.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 278-283
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    High voltage transmission microscopy of Surveyor 3 camera shrouds (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The internal structure of painted and unpainted aluminum alloy sheet samples from the TV camera shrouds were examined by high-voltage transmission electron microscopy. No clear-cut evidence of radiation damage effects was observed. Noticeable differences in microstructures between the upper visor and the sides and bottom of the lower shroud suggest different thermal histories, and the maximum temperatures due to solar heating are estimated to be between 164 and 319 C. Some correlation between microstructures and maximum estimated temperature is noted. It is felt that the apparent temperature rise due to solar heating will not affect the structural integrity of spacecraft components except possibly for very long periods of exposure. However, substantial thermal diffusion could affect interpretation of solar wind rare gas studies.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 184-196
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    Surveyor 3: Bacterium isolated from lunar retrieved television camera (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Microbial analysis was the first of several studies of the retrieved camera and was performed immediately after the camera was opened. The emphasis of the analysis was placed upon isolating microorganisms that could be potentially pathogenic for man. Every step in the retrieval of the Surveyor 3 television camera was analyzed for possible contamination sources, including camera contact by the astronauts, ingassing in the lunar and command module during the mission or at splashdown, and handling during quarantine, disassembly, and analysis at the Lunar Receiving Laboratory
    Keywords: BIOSCIENCES
    Type: Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 239-248
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    A contamination experiment investigating the failure of the Nimbus 4 filter wedge spectrometer (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A ground test is described wherein a quartz crystal microbalance was used in defining the quantity and direction of a contaminant. The cause of the failure of an experiment in orbit was thus confirmed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Space Simulation; p 469-485
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  • 79
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    Development of a silicone ablator for high-heat-flux and high-shear-rate condition (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A silicone material was developed which gives suitable ablative protection in the high heat flux, high shear environments encountered in severe reentry applications, such as nose cones for ballistic vehicles and protection of leading edges or other critical areas of a vehicle. In addition, the ease of handling, low application cost, and room temperature cure make such a silicon material suitable nozzles for the large rockets necessary for vehicle launching. The development of this product is traced from the selection of suitable polymers through the choice of fillers and the finalization of filler loadings.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA. Goddard Space Flight Center Space Simulation; p 725-748
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  • 80
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    An instrument for real time detection of contamination in space environmental tests chambers (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: An instrument for in situ vacuum detection of surface reflectance changes at 1216A was designed. Using successive reflections, this instrument is more sensitive as an indicator of reflectance changes than similar instruments having only a single reflection. The selection of each component of the instrument and its operational performance is discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Space Simulation; p 503-519
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  • 81
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    Space simulation and rate dependent radiation testing (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: An environmental test facility is described which allows in-situ measurements for evaluation of near real time sinergistic effects of combined space environments.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA. Goddard Space Flight Center Space Simulation; p 453-460
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  • 82
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    Multilayer insulation thermal protection systems technology (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A summary is presented of the work performed by Marshall Space Flight Center (MSFC) and industry toward the development of flight-type multilayer insulation(MLI) systems. The MSFC MLI program is divided into three large categories: (1) the generation and compilation of MLI composite test data; (2) the analysis, design, and testing of heat flow through MLI applied to ducting, seams, electrical feedthroughs, structural supports, and the tank sidewall; and (3) the development, modification, and utilization of new testing procedures, tanks, and the test facilities. Numerous data have been generated, analyzed, and documented on different MLI composites.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: Cryog. Res. at MSFC: Achievements Rev., Vol.4, No. 2; p 5-52
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  • 83
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    Nozzle exhaust plume backscatter experiment using the JPL Molsink facility (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Qualitative tests were made by injecting water through a rocket nozzle wall, and the droplet trajectories were observed photographically. These tests were conducted for nozzles in which boundary layer flow is significant. The tests indicated that both gases and particulate matter will be found in the region outside of the plume boundaries, and can be calculated using current analytical techniques. A test program is being conducted to measure the distribution of exhaust gases from small nozzles using an electron beam/photomultiplier system and a matrix of quartz crystal microbalances. Calibration tests, using simulated hydrazine exhaust product gas mixtures, were also conducted. The test program and results of the pumping calibration tests with hydrazine (simulated hydrazine exhaust products) are reported.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: JPL Quart. Tech. Rev., Vol. 1, No. 4; p 89-96
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  • 84
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    Observations and reduction techniques of the US Coast and Geodetic Survey (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The plate reduction method and other aspects of the world geodetic net are described. About one hundred stars are used as reference stars on the PAGEOS satellite plates obtained on 300mm f.1. and later 450mm f.1. Wild BC-4 cameras. The measurements are made manually now on diapositives since these can, according to experience, be measured with higher accuracy and are adjusted following a rigorous projective geometric model. The satellite images are analytically represented by a polynomial curve, of which seven fictitious points are regarded as the result from this plate. Some other aspects of the program are also discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Photo. Astrometric Technique; p 133-140
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  • 85
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    Physical limitations in sensors for a drag-free deep space probe (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The inner perturbing forces acting on sensors were analyzed, taking into account the technological limitations imposed on the proof mass position pickup and proof mass acquisition system. The resulting perturbing accelerations are evaluated as a function of the drag-free sensor parameters. Perturbations included gravitational attraction, electrical action, magnetic action, pressure effects, radiation effects, and action of the position pickup. These data can be used to study the laws of guidance, providing an optimization of the space probe as a whole.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Proc. of the Conf. on Exptl. Tests of Gravitation Theories; p 197-212
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  • 86
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    Automatic plate mensuration and reduction at Aeronautical Chart and Information Center (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The use of optical satellite observation data for geodetic purposes depends on the ability to extract pertinent information from photographic plates by identifying points on the plates and correlating them with known star positions for use in geodetic positioning. This procedure is accomplished with a new semi-automatic measuring system, an advanced analytical plate reduction program for the IBM 7094 computer, and a triangulation adjustment. The advantages gained with the measuring system, a brief discussion of the system itself, and the plate reduction and triangulation adjustment are described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 109-118
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  • 87
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    Astrometric investigations at the Vienna Observatory and astrometric plans for the 60 inch reflector of the L. Figl Observatory (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A short discussion of the astrometric instruments at the Vienna Observatory is given. The essential features of design and organization of the planned 60 inch telescope are described. Furthermore, several points of view concerning modern astrometry are discussed, especially the usefulness of comparing astrometric results based upon different instruments, for instance the comparison between mirrors and refractor based data. Some examples are given together with new immediate results. Lastly, as far as possible at this moment astrometric plans for the new telescope are formulated.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 99-108
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  • 88
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    The reduction of the National Aeronautics and Space Administration plates at the New Mexico University (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A method of reducing GEOS satellite plates is described. The catalog positions of stars, whose images were measured, are updated to the time of the photographic observation. The plate constants are used to compute the positions of the seven (or fewer) flashing light images which were measured. There are corrected for refraction, parallax, and radial and decentering lens distortions. With sidereally tracking cameras, the exterior orientation is further corrected to the time of the particular flash, and the change of refraction with time is allowed for. First and second differences and standard deviations and covariances for the flashing light images are developed as a measure of accuracy.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 119-122
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  • 89
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    The extraction of accurate coordinates of images on photographic plates by means of a scanning type measuring machine (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The Moire method experimental stress analysis is similar to a problem encountered in astrometry. It is necessary to extract accurate coordinates from images on photographic plates. The solution to the mutual problem found applicable to the field of experimental stress analysis is presented to outline the measurement problem. A discussion of the photo-reading device developed to make the measurements follows.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Conf. on Phot. Astrometric Technique; p 55-60
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  • 90
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    Computer controlled precision digitizers of optical image data extraction (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The flying spot digitizer and its applications are described. Suggestions are made as to how this apparatus might be used for the precise and fast measurement of star images on photographic plates.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 15-24
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  • 91
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    Experiment S029: Earth-Moon libration regions photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Eleven photographs were taken of the L sub 4 earth-moon libration region during the Gemini 12 mission. The objective was to investigate the possible existence of clouds or particles of dust orbiting the earth in the L sub 4 region by the use of photographic techniques. No identifiable data were found in the first sequence of five photographs. Star field images could be recognized in two photographs of the second sequence of pictures. A light flare, of unknown source but possibly caused by light refraction from the window of the spacecraft, was recorded in both pictures. A reconstructed star field region (as photographed) is shown Isodensitraces of the two recognizable star fields were made; however, no conclusive results were obtained.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 71-75
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  • 92
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    Experiment S001: Zodiacal Light Photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Observations made during the Gemini 5, 9, and 10 missions in the context of their relation to ground-based and balloon-based experiments on dim-light phenomena are reported. Zodiacal light is the visible manifestation of dust grains in orbit around the sun. The negatives that were exposed on the Gemini 9 mission were studied by the use of an isodensitracer to produce intensity isophotes. Data on the following factors were obtained: (1) intensity distribution of the zodiacal light, both morning and evening; (2) the height and intensity of the airglow at various geographic positions; and (3) intensity distribution of the Milky Way in the region of the sky near Cygnus. Also, a previously unreported phenomenon was discovered. This phenomenon appeared as an upward extension of the normal 90-kilometer airglow layer. The extension was in the form of wisps or plumes approximately 5 deg wide and extending upward approximately 5 deg. The results obtained from pictures exposed on the Gemini 10 mission were of qualitative or geometrical value only.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 3-16
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  • 93
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    A semi-automatic measuring machine (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A machine designed to locate automatically a star image on a photographic plate from approximate coordinates on a punched card and to measure and record its position to a micron is described. The main frame of the machine is of granite, as are the x and y coordinate carriages which move on air bearings against granite ways. The system is capable of making measurements continuously over a 10 x 10 inch range by means of a Ferranti moire fringe system, with a least count of one micron.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 49-54
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  • 94
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    The Lick-Gaertner automatic measuring system (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The Lick-Gaertner automatic equipment has been designed mainly for the measurement of stellar proper motions with reference to galaxies, and consists of two main components: the survey machine and the automatic measuring engine. The survey machine is used for initial inspection and selection of objects for subsequent measurement. Two plates, up to 17 x 17 inches each, are surveyed simultaneously by means of projection on a screen. The approximate positions of objects selected are measured by two optical screws: helical lines cut through an aluminum coating on glass cylinders. These approximate coordinates to a precision of the order of 0.03mm are transmitted to a card punch by encoders connected with the cylinders.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Photo. Astrometric Technique; p 33-48
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  • 95
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    Experiment S030: Dim sky photography/orthicon (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: During Gemini missions, the image orthicon system was used to obtain photographic data on faint and diffuse astronomical phenomena. Results show that the photographs may be used to determine the airglow geometry. Although it was sensitive, the original photographic system was unsuitable for use in the study of dim and diffuse astronomical light sources.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: The Gemini Program: Phys. Sci. Expt. Sum.; p 445-454
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  • 96
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    Experiment S006: Synoptic weather photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A data gathering effort on a number of cloud systems is reported. On both manned and unmanned Mercury and Gemini 3 missions, a number of good pictures of cloud systems were obtained. Also, specific experiments were performed by the crewmembers in the Mercury missions. Those experiments involved some of the spectral reflectance characteristics of clouds, land, and water regions of the earth surface as viewed from outside the atmosphere. Pictures obtained on successive revolutions of a Gemini spacecraft were indicative of the changes in and the movements of clouds at approximately 90-min intervals at certain points beneath the track of the spacecraft. A series of such views explain the various meteorological phenomena.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 383-414
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  • 97
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    The design of lightweight Cer-Vit mirror blanks (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Structural design analysis and production methods for mirror blanks from glass ceramic material
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 219-239
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  • 98
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    Considerations on precision temperature control of a large orbiting telescope (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Precision temperature control of large orbiting telescopes
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: OPT. TELESCOPE TECHNOL. 1970; P 417-424
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  • 99
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    System aspects of the Kitt Peak automatic telescope (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: System hardware and software for remotely controlled automated telescope of Kitt Peak Observatory
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 661-672
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  • 100
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    Lightweight mirror structures (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Borosilicate glass and monolithic core technology for lightweight astronomical mirror construction
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 241-247
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