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  • 1
    Digitale Medien
    Digitale Medien
    The crystal structure of DL-serine (1953)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 6 (1953), S. 241-256 
    Details
    ISSN: 0001-5520
    Quelle: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Thema: Geologie und Paläontologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1107/S0365110X53000739
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Chemical Separation of Isomeric 80 Br Atoms (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 517-518 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] FOR rather more than a year, we have been studying the concentration of radiobromine by modifications of the method of Szilard and Chalmers1, and have been using concentrates to follow the kinetics of exchange reactions between radiobromine ions and alkyl bromides. In the course ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/143517a0
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Wheat anther culture: effect of genotype and environmental conditions (1991)
    Springer
    Plant cell, tissue and organ culture 24 (1991), S. 233-236 
    Details
    ISSN: 1573-5044
    Schlagwort(e): anther culture ; cultivars ; Triticum aestivum ; wheat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Twenty-two cultivars and lines of winter and spring wheat (Triticum aestivum L.) were studied, most for the first time, for their anther culture response. The response was genotype dependent. Plants grown in the field gave higher callus induction frequency than those grown in the greenhouse and the controlled environment chamber. Donor plants grown in a season of low drought stress as compared to a season of severe drought stress resulted in a higher frequency of callus induction. Spherical microcalli were observed in two wheat genotypes in some of only those anthers that were placed with only one loculus in contact with the medium. Wheat lines that were more responsive to anther culture were identified.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00033482
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Dynamic adsorption properties of Kr and Xe isotopes in charcoal (1994)
    Springer
    Journal of radioanalytical and nuclear chemistry 181 (1994), S. 291-299 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract The dynamic adsorption of Kr and Xe in activated charcoal were measured. The temperature dependence of breakthrough curves for individual isotopes of85mKr,87Kr,88Kr and135Xe have been determined from the γ-spectra at temperatures from 78 K to 291 K. The effective hold up and dynamic adsorption coefficient have been deduced. We find that adsorption is very sensitive to temperature and also depends on the size rather than on the mass of the adsorbed atom. Form total growth radioactivity, the time dependent brakthrough curves at the temperatures of 113, 195 and 220 K have been constructed. The curves were analyzed and compared with the model calculations. Fick's law describing the mass transfer of gas into porous solid was employed to obtain the adsorption coefficient from fitting the experimental data. The results show fairly good agreement between model predictions and the experiments.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02037635
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