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  • 1975-1979  (3)
  • 1970-1974
  • 1975  (3)
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  • 1975-1979  (3)
  • 1970-1974
Year
  • 1
    Electronic Resource
    Electronic Resource
    PORPHYRINS IN INVERTEBRATES (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 244 (1975), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1975.tb41560.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A lunar core and the moon's magnetic field (1975)
    Springer
    Earth, moon and planets 12 (1975), S. 401-406 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The suggestion that the Moon's magnetic field is due to adiabatic magnetohydrodynamic convection of a molten core has been made by a number of recent authors. Considerations based on petrology, mass and rotational inertia limit the size of this hypothetical core to a few 100 km at the most. A proposal has been made that this core is either molten iron or iron sulfide. Fortunately, we know the properties of both molten iron and iron-sulfide at lunar core pressures. We can find no way of maintaining circulation in a hypothetical lunar core, as circulation is contingent upon a temperature gradient being greater than the adiabatic gradient, or an internal heat source.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00577932
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    States inN=80140Nd populated in the decay of140Pm (1975)
    Springer
    The European physical journal 274 (1975), S. 233-239 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The level structure of theN=80,140Nd has been investigated through the beta decay of140m Pm and140g Pm, whose decay half-lives were measured to be 5.95±0.05 min and 9.1±0.5 sec, respectively. Decay schemes for the two isomers have been constructed fromγ-ray measurements. With the help of the beta decayft values and internal conversion electron measurements, spins and parities were deduced for levels in140Nd. Among the levels a 7− state at 2222.0 keV and a 5− state at 2273.3 keV are identified as two-neutron quasiparticle states. The (ie233-01) for140m Pm and140g Pm have been deduced as 7− and 1+, respectively. From beta end-point measurements, the decay energies of the two isomers have been determined asQ EC=6.48±0.07 MeV140m (Pm) andQ EC=6.08±0.10 MeV (140gPm). The results are discussed in the light of nuclear systematics of theN=79 and 80 isotones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437735
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    Paper (German National Licenses)
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