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  • Lunar and Planetary Science and Exploration  (338)
  • STRUCTURAL MECHANICS  (284)
  • ASTROPHYSICS
  • Inorganic Chemistry
  • Life and Medical Sciences
  • 2005-2009  (336)
  • 1965-1969  (446)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Panel discussion: Present status and perspectives in the study of cytodifferentiation at the molecular level. II. Discussion (1968)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 72 (1968), S. 219-230 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040720415
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    Paper (German National Licenses)
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  • 2
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    Analysis of webs of partial-tension-field beams subjected to lateral pressure loadings (1966)
    In:  CASI
    Details
    Publication Date: 2019-05-29
    Description: Webs of partial-tension-field beams subjected to lateral pressure loadings
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-75054 , SID-66-135
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Stability of nonlinear vehicle systems (1966)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Nonlinear effects of liquid motion in fixed and moving containers on stability and control of liquid rocket powered missiles and spacecraft
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-82667 , GD/C-DDF-66-009
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Model Development and Testing for THEMIS Controlled Mars Mosaics (2005)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: As part of our work [1] to develop techniques and procedures to create regional and eventually global THEMIS mosaics of Mars, we are developing algorithms and software to photogrammetrically control THEMIS IR line scanner camera images. We have found from comparison of a limited number of images to MOLA digital image models (DIMs) [2] that the a priori geometry information (i.e. SPICE [3]) for THEMIS images generally allows their relative positions to be specified at the several pixel level (e.g. approx.5 to 13 pixels). However a need for controlled solutions to improve this geometry to the sub-pixel level still exists. Only with such solutions can seamless mosaics be obtained and likely distortion from spacecraft motion during image collection removed at such levels. Past experience has shown clearly that such mosaics are in heavy demand by users for operational and scientific use, and that they are needed over large areas or globally (as opposed to being available only on a limited basis via labor intensive custom mapping projects). Uses include spacecraft navigation, landing site planning and mapping, registration of multiple data types and image sets, registration of multispectral images, registration of images with topographic information, recovery of thermal properties, change detection searches, etc.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Lunar and Planetary Science XXXVI, Part 1; LPI-Contrib-1234-Pt-1
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Characterization and Petrologic Interpretation of Olivine-Rich Basalts at Gusev Crater, Mars (2006)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: Rocks on the floor of Gusev crater are basalts of uniform composition and mineralogy. Olivine, the only mineral to have been identified or inferred from data by all instruments on the Spirit rover, is especially abundant in these rocks. These picritic basalts are similar in many respects to certain Martian meteorites (olivine-phyric shergottites). The olivine megacrysts in both have intermediate compositions, with modal abundances ranging up to 20-30%. Associated minerals in both include low-calcium and high-calcium pyroxenes, plagioclase of intermediate composition, iron-titanium-chromium oxides, and phosphate. These rocks also share minor element trends, reflected in their nickel-magnesium and chromium-magnesium ratios. Gusev basalts and shergottites appear to have formed from primitive magmas produced by melting an undepleted mantle at depth and erupted without significant fractionation. However, apparent differences between Gusev rocks and shergottites in their ages, plagioclase abundances, and volatile contents preclude direct correlation. Orbital determinations of global olivine distribution and compositions by thermal emission spectroscopy suggest that olivine-rich rocks may be widespread. Because weathering under acidic conditions preferentially attacks olivine and disguises such rocks beneath alteration rinds, picritic basalts formed from primitive magmas may even be a common component of the Martian crust formed during ancient and recent times.
    Keywords: Lunar and Planetary Science and Exploration
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Petrography of Lunar Meteorite MET 01210, A New Basaltic Regolith Breccia (2005)
    In:  CASI
    Details
    Publication Date: 2019-07-11
    Description: Lunar meteorite MET 01210 (hereafter referred to as MET) is a 22.8 g breccia collected during the 2001 field season in the Meteorite Hills, Antarctica. Although initially classified as an anorthositic breccia, MET is a regolith breccia composed predominantly of very-low-Ti (VLT) basaltic material. Four other brecciated lunar meteorites (NWA 773, QUE 94281, EET 87/96, Yamato 79/98) with a significant VLT basaltic component have been identified. We present here the petrography and bulk major element composition of MET and compare it to previously studied basaltic lunar meteorite breccias.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Lunar and Planetary Science XXXVI, Part 22; LPI-Contrib-1234-Pt-22
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    NASA TECHNICAL REPORTS
  • 7
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    Ethane Ices in the Outer Solar System: Spectroscopy and Chemistry (2009)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: We report recent experiments on ethane ices made at temperatures applicable to the outer Solar System. New near- and mid-infrared data for crystalline and amorphous ethane, including new spectra for a seldom-studied solid phase that exists at 35-55 K, are presented along with radiation-chemical experiments showing the formation of more-complex hydrocarbons
    Keywords: Lunar and Planetary Science and Exploration
    Type: Icarus (ISSN 0019-1035); 203; 2; 677-680
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Microsat and Lunar-Based Imaging of Radio Bursts (2005)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: No present or approved spacecraft mission has the capability to provide high angular resolution imaging of solar or magnetospheric radio bursts or of the celestial sphere at frequencies below the ionospheric cutoff. Here, we describe a MIDEX-class mission to perform such imaging in the frequency range approx. 30 kHz to 15 MHz. This mission, the Solar Imaging Radio Array (SIRA), is solar and exploration-oriented, with emphasis on improved understanding and application of radio bursts associated with solar energetic particle (SEP) events and on tracking shocks and other components of coronal mass ejections (CMEs). SIRA will require 12 to 16 micro-satellites to establish a sufficient number of baselines with separations on the order of kilometers. The constellation consists of microsats located quasi-randomly on a spherical shell, initially of approx. 10 km diameter. The baseline microsat is 3-axis stabilized with body-mounted solar arrays and an articulated, earth pointing high gain antenna. The constellation will likely be placed at L1, which is the preferred location for full-time solar observations. We also discuss briefly follow-on missions that would be lunar-based with of order 10,000 dipole antennas.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Planetary Radion Emissions 6th; Apr 20, 2005 - Apr 22, 2005; Graz; Austria
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    NASA TECHNICAL REPORTS
  • 9
    Electronic Resource
    Electronic Resource
    The development of neuromasts in Cirrhina mrigala Ham. Buch. (Cyprinidae) and Ophicephalus (Channa) punctatus Bloch (Channidae) (1967)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 122 (1967), S. 321-343 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The development of neuromasts was studied in two species of teleosts, Cirrhina mrigala Ham. Buch. and Ophicephalus punctatus Bloch, and the findings are presented and discussed. It has been discovered, in the course of this investigation, that a neuromast arises by a process of invagination  -  a fact hitherto not reported. The occurrence of the dorsal lateral line and the accessory lateral line of the trunk, in addition to the main lateral line, has also been reported for the first time for teleosts, although known for other bony fishes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051220404
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  • 10
    Electronic Resource
    Electronic Resource
    The release of amino acids from nerve during stimulationSupported by grant NB03971-03 from the USPHS. (1966)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 67 (1966), S. 141-147 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Frog sciatic nerves were incubated for 24 hours in either glycine, aspartic acid, glutamic acid, lysine, leucine, γ-aminobutyric acid, glutamine, or pentanedioic acid (all labeled with C14), and the rates of release of these compounds were monitored under resting conditions and during stimulation. Upon stimulation, the rate or release of glutamic acid increased an average of 200% above the resting rate. This extra release is highly specific with regard to molecular size and structure, since of the compounds tested only glutamic acid gave significant increases in rates of release during stimulation. Ouabain (0.1 mM) had no effect on the rate of release; however, sodium azide (0.2 mM or 1.0 mM) completely eliminated the extra release during excitation, indicating that the increased permeability to glutamic acid is energy-dependent. Competition experiments show that the extra release of glutamic acid can be eliminated with 10 mM concentrations of non-isotopic choline. The hypothesis is advanced that glutamic acid is actively extruded by a highly specific carrier mechanism.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040670116
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