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  • 1975-1979  (3)
  • 1975  (3)
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  • 1975-1979  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Skeletal vibrational spectra, force constants, and bond properties of transition metal ammine complexes (1975)
    s.l. : American Chemical Society
    Inorganic chemistry 14 (1975), S. 2183-2187 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50151a031
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Existence and amount of intergalactic dust (1975)
    Springer
    Astrophysics and space science 34 (1975), S. 23-31 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The existence of intergalactic dust has been proved by the following observational facts: the decrease of the numbers of distant galaxies and clusters of galaxies behind the central regions of near clusters of galaxies; the different distributions of RR Lyrae stars and galaxies near ι Microscopii (Hoffmeister's cloud); the dependence of colour excesses of galaxies on supergalactic coordinates as well as on the surface density of bright galaxies; the colour index vs redshift correlation of quasistellar objects. The densities of intergalactic dust are estimated to be between 5×10−30 g cm−3 (near the centers of clusters of galaxies) and 2×10−34 g cm−3 (in general intergalactic space). The grains may be formed either in the early phases of the Universe (25〈z〈50) or may be expelled from galaxies by the radiation pressure. The most effective destruction process seems to be the evaporation by soft cosmic rays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00646744
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The influence of pairing and nuclear structure on the thermal-neutron-induced fission of235U (1975)
    Springer
    The European physical journal 274 (1975), S. 203-213 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The mass separated fission product beam provided by the mass separator “Lohengrin” has been used to determine the nuclear charge distribution for the thermal-neutron-induced fission of235U for all light fission products in the region 80≦A≦107. The measurements were performed at the most probable kinetic energy of the fission products. By using the known fission product mass yields, the independent yields for a total number of 100 nuclides were obtained under the condition of the most probable kinetic energy. The proton pairing effect modulates the average nuclear charge of the fission fragments and the isobaric charge distribution widths in a regular fashion. The probabilities of breaking a pair and of forming fragments with an energetically unfavourable neutron-to-proton ratio are found to compete with each other. Both probabilities depend on the mass split and reach their maximum values in the region of the most probable masses. The odd-even-proton effect is found to vary smoothly between 16% for the most abundant mass splits and 40% for the rare mass splits. The odd-even-neutron effect exhibits maxima nearN=50 andN=60, where it reaches 16%. These maxima and the extremely low Tcyield (0.13±0.05%) are discussed with regard to fragment shell effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437731
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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