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  • LUNAR AND PLANETARY EXPLORATION  (6)
  • 71.28  (1)
  • AERODYNAMICS  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    The European physical journal 97 (1995), S. 83-93 
    ISSN: 1434-6036
    Schlagwort(e): 79.60 ; 71.20 ; 71.28
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract We have investigated hole doped (by lithium) and electron-doped (by nickel metal) NiO with photoemission (PES), inverse photoemission (IPES) and low and high energy electron energy loss spectroscopy (EELS). Both types of doping create empty states approximately in the middle of the charge transfer gap of undoped NiO.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    facet.materialart.
    Unbekannt
    In:  Other Sources
    Publikationsdatum: 2011-08-16
    Beschreibung: Lunar geology evidence is examined for clues to the origin and evolution of the moon and earth. Seven evolutionary episodes, the last covering three billion years to the present day, are constructed for the moon. Parallel episodes in the earth's evolution are masked by the dynamic continuing evolution of the earth over a 4.5 billion year span, in contrast to the moon's quiescence and inability to retain fluids. Comparisons are drawn between the geochemistry and tectonics of the lunar basaltic maria and the earth's ocean basins. Lunar maria rocks differ strikingly in chemical composition from meteoritic matter and solar material. Inundation of frontside lunar maria basins by vast oceans of dark basalt mark the last of the major internally generated evolutionary episodes, and is attributed to consequences of meltdown of the lunar mantle and crust by radioisotope decay from below. Data are drawn primarily from Apollo missions 11-17, supplemented by other sources.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: Geological Society; vol. 131
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    facet.materialart.
    Unbekannt
    In:  CASI
    Publikationsdatum: 2019-07-13
    Beschreibung: Investigations are reported of Apollo and Luna explorations which have brought about the understanding of the moon and its structure. It is shown that with this knowledge of the moon, a better understanding is presented of the earth's origin, structure and composition.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: NASA-TM-X-72192 , CONTRIB-2480 , REPT-230 , Sov.-Am. Conf. on the Cosmochem. of the Moon and Planets; Jun 04, 1974 - Jun 08, 1974; Moscow; Soviet Union
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Publikationsdatum: 2019-07-13
    Beschreibung: The topics covered include the following: petrology, lithology, lunar rocks, lunar soil, geochemistry, lunar geology, lunar resources, oxygen production, ilmenite, volcanism, highlands, lunar maria, massifs, impact melts, breccias, lunar crust, Taurus-Littrow, minerals, site selection, regolith, glasses, geomorphology, basalts, tectonics, planetary evolution, anorthosite, titanium oxides, chemical composition, and the Sudbury-Serenitatis analogy.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: NASA-CR-191637 , LPI-TR-92-09-Pt-1 , NAS 1.26:191637 , Dec 02, 1992 - Dec 04, 1992; Houston, TX; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Publikationsdatum: 2019-08-28
    Beschreibung: Many modern concepts for STOL and V/STOL aircraft rely on integration of the propulsion system with the wing to create favorable lift interactions, and are known as powered lift concepts. A study of powered lift, concerning management and control of the various propulsive streams or jets is presented, each concept having its own particular objectives and requirements. Some specific objectives of this kind are described which relate to the augmentor wing. Consideration is given to three aspects of the subject, namely the augmentor flap itself, the wind ducting and augmentor primary nozzle, and the choice of powerplant or engine cycle. More generally, comments are made regarding noise attenuation and the prospect for achieving a low overall noise level for jet STOL aircraft of the future.
    Schlagwort(e): AERODYNAMICS
    Materialart: NASA-TM-77884 , NAS 1.15:77884
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    facet.materialart.
    Unbekannt
    In:  Other Sources
    Publikationsdatum: 2019-08-27
    Beschreibung: Based on the geological discoveries of the Apollo and Luna missions, the evolution of the moon is divided into seven major stages, beginning at some time near the end of the formation of the solar system. These stages are: (1) the beginning, 4.6 billion years ago (b.y.a.); (2) melting of the outer shell, 4.6 to 4.4 b.y.a.; (3) cratering of the highlands, 4.4 to 4.1 b.y.a.; (4) formation of the large basins, 4.1 to 3.9 b.y.a.; (5) formation of the light-colored plains, 3.9 to 3.8 b.y.a.; (6) formation of the basaltic maria, 3.8 to about 3.0 b.y.a.; and (7) the quiet-crust stage, about 3.0 b.y.a. to the present. Each Apollo and Luna mission is reviewed, emphasizing the most important discoveries and experiments performed. The limits on this interpretative understanding of the moon and the outlined sequence of events are pointed out.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: Space Science Reviews; 18; Dec. 197
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Publikationsdatum: 2019-07-13
    Beschreibung: Orange and red materials were observed and photographed in the dark mantle of the Sulpicius Gallus Formation on the southwestern rim of the Serenitatis basin. These materials occur only within the dark mantle that overlies old rilled mare and highland units and are absent on the younger mare unit in this area. Orange and red materials occur predominantly as halos, patches, or rays around fresh impact craters ranging in diameter from less than 50 to 250 m and in layers exposed at the base of the dark mantle deposit in the steep walls of a depression and a graben. Red material is present in the highland subsurface, possibly as dikes. We conclude that orange material, locally underlain by red material, occurs in the dark mantle to a depth of about 50 m as locally stratified but discontinuous pyroclastic deposits and that it may have been produced by multiple 'fire foundation' eruptions during the later stages of accumulation of the older mare basalt units.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: Lunar Science Conference; Mar 18, 1974 - Mar 22, 1974; Houston, TX
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    facet.materialart.
    Unbekannt
    In:  Other Sources
    Publikationsdatum: 2019-08-27
    Beschreibung: A possible geological model for the origin and history of the materials that make up Boulder 1 is proposed on the basis of firm and probable regional, local, and boulder geological constraints. These constraints are described in detail, unresolved questions are considered, and a model is presented which appears to satisfy all the firm constraints and most of the probable constraints. According to this model, the crystallization of plagioclase and other ANT-suite phases now present in the boulder as clasts and matrix materials took place during the melted-shell stage of lunar history; the original rocks were greatly modified during the cratered-highland stage; and the events that determined the major characteristics of the boulder occurred during the large-basin stage.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: The Moon; 14; Nov
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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