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  • Other Sources  (3,541)
  • 2020-2024
  • 2010-2014
  • 1970-1974  (3,541)
  • 1955-1959
  • 1945-1949
  • 1973  (3,541)
Collection
Source
Keywords
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  • 2020-2024
  • 2010-2014
  • 1970-1974  (3,541)
  • 1955-1959
  • 1945-1949
Year
  • 1
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    Application of ERTS-1 data to the protection and management of New Jersey's coastal environment (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. Analysis of ERTS-1 imagery and complementary aircraft overflights has led to the development of seventeen information products that are being utilized within the Department of Environmental Protection as new sources of information for coastal zone management. Problem areas of significance to the State, and in which product development has contributed to date, have been identified as: the environmental effects of offshore waste disposal, the placement of ocean outfalls, the better understanding of littoral processes for shore protection, the delineation of the coastal ecozones, and determination of the flushing characteristics of the State's estuaries. Of equal importance has been the development of a capability within the State to use and understand remote sensor-derived information.
    Keywords: GEOPHYSICS
    Type: E73-10845 , NASA-CR-133424 , ESC-304
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Water demand studies (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The areas of focus of the Santa Barbara and Riverside groups in conducting water demand studies are the central and southern California regional test sites, respectively. Within each test site, sub-areas have been selected for use in the making of detailed investigations. Within each of these sub-areas an in-depth evaluation is being made as to the capability of remote sensing systems to provide pertinent data relative to water demand phenomena. These more limited sub-areas are: (1) Kern County and the San Joaquin Basin; (2) Chino-Riverside Basin; and (3) the Imperial Valley. Rational for the selection of these subareas included the following: Much of the previous remote sensing research had been conducted in these areas and therefore a great deal of remote sensing imagery and pertinent ground truth for the areas was already available.
    Keywords: GEOPHYSICS
    Type: An Integrated Study of Earth Resources in the State of Calif. Using Remote Sensing Tech.; 71 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Neutron emission following muon capture in Ce-142, Ce-140, Ba-138, and Sn-120. (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Branching ratios to excited nuclear states formed after muon capture have been measured with Ge(Li) detectors. The delayed gamma rays were observed in studies of muonic Ce-142, Ce-140, Ba-138, and Sn-120, using separated isotopes. The resulting isotopes formed indicate at least a 60% probability of neutron emission upon muon capture, with the most likely product resulting from single-neutron emission. No evidence for delayed proton emission with a probability higher than 2% was found. Using our more precise energies for the observed nuclear transitions, we present revised energy levels schemes for La-141, La-139, Cs-137, and In-119.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review C - Nuclear Physics; vol. 7
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Electron calibration on a high-energy cosmic ray detector. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The response of the GSFC High Energy Cosmic Ray Detector has been studied using electrons in the energy range from 5.4 to 18 GeV. A semiempirical analytic form has been developed to determine the starting points and the energies of electron-induced cascade showers. The energy resolution thus obtained has a full width at half maximum of 17%, and the starting point can be determined to within 0.1 to 0.2 radiation length. The results of this response calibration provide a basis on which cosmic ray electrons can be reliably identified and analyzed in the presence of a large proton background.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Nuclear Instruments and Methods; 108; 1973
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Use of ERTS-1 data to assess and monitor change in the Southern California environment (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E75-10217 , NASA-CR-142403
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Pioneer Venus mission plan for atmospheric probes and an orbiter. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The mission concept is described for a spin-stabilized spacecraft being designed to deliver an array of aerodynamic probes over the surface of Venus, and, on a second flight mission, to inject the spacecraft into a Venusian orbit. Large and Small Probes and the instrumented 'Bus' structure will enter the Venusian atmosphere and directly measure its characteristics. An orbiting configuration of the same basic Bus spacecraft will serve as a platform from which to examine the planetary environment, the outer atmosphere and its interaction with the solar wind, as well as surface topography. The orbital mission will extend over a complete revolution of the planet around the sun and around its own axis. Requirements for cost effectiveness and firm adherence within early cost projections are emphatic program guidelines which affect every major element of the mission plan and conceptual design.
    Keywords: SPACE SCIENCES
    Type: AIAA PAPER 73-579 , Joint Space Mission Planning and Execution Meeting; Jul 10, 1973 - Jul 12, 1973; Denver, CO
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Flight investigation of acoustic and thrust characteristics of several exhaust nozzles installed on underwing nacelles on an F106 airplane (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: To determine flyover noise and thrust and to investigate whether flight velocity significantly affects the noise of exhaust nozzles, a series of flight tests was conducted on three different exhaust nozzles of a type suitable for supersonic transport aircraft. The tests were conducted using an F-106B aircraft modified to carry two underwing nacelles, each containing a calibrated turbojet engine. A flyover altitude of 91 meters (300 ft) and a Mach number of 0.4 provided acoustic data that were repeatable to within + or -1.5 PNdB. Flyover results showed that an auxiliary inlet ejector nozzle was the quietest of the nozzles tested; flight velocity appeared to reduce its noise.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-TM-X-2854 , E-7319
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Application of ERTS-1 data to the protection and management of New Jersey's coastal environment (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The author has identified the following significant results. This catalogue was prepared as a part of the joint ERTS-1 New Jersey coastal mapping experiment. First look analysis of ERTS-1 images indicates that numerous coastal oceanographic patterns can be mapped on a sequential basis using ERTS-1 images. Analysis of imagery indicates a predominant southwesterly drift of dumped wasted in the surface waters. Initial analysis of imagery indicates that the effects of tidal flushing of New York harbor extend as far south as Long Branch, New Jersey. Analysis of imagery from 3 September, 1972, indicates a wide band of turbid water extending several miles offshore around Barnegat Inlet. First look analysis of imagery from 10 October, 1972, illustrates the increased reflectance of turbid waters within the bays, sounds, and thoroughfares behind the barrier islands in the southern New Jersey shore area. The estuarine waters emanating from both Brigantine and Absecon Inlets are very turbid relative to the waters further offshore and to the north and south. The tidal prism appears to be quite large but the movement of water once outside the inlets is not very rapid. The waters are not moving away from the coastline but rather along the coast.
    Keywords: GEOPHYSICS
    Type: E73-10383 , NASA-CR-129952
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Krypton and xenon in lunar fines (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Data from grain-size separates, stepwise-heated fractions, and bulk analyses of 20 samples of fines and breccias from five lunar sites are used to define three-isotope and ordinate intercept correlations in an attempt to resolve the lunar heavy rare gas system in a statistically valid approach. Tables of concentrations and isotope compositions are given.
    Keywords: SPACE SCIENCES
    Type: Lunar Science Conference; Mar 05, 1973 - Mar 08, 1973; Houston, TX
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Quiet time energy spectra of heavy nuclei from 20 to 400 keV/amu (1973)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: Glass track detectors were exposed to cosmic rays on the moon from December 11 to 13, 1972, during a period of relatively quiet sun activity as inferred from satellite proton counters. From 80 to 400 keV/amu, the differential flux of heavy cosmic ray nuclei decreases roughly as E to the -2nd power; this result together with the greater flux from the solar than the antisolar direction identify these nuclei as solar in origin.
    Keywords: SPACE RADIATION
    Type: NASA. Johnson Space Center Apollo 17 Prelim. Sci. Rept.; 4 p
    Format: text
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    NASA TECHNICAL REPORTS
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