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  • 1
    Digitale Medien
    Digitale Medien
    Neuroaxonal pathology of central and peripheral nervous systems in cerebrotendinous xanthomatosis (CTX) (1984)
    Springer
    Acta neuropathologica 64 (1984), S. 259-264 
    Details
    ISSN: 1432-0533
    Schlagwort(e): Cerebrotendinous xanthomatosis ; Sural nerve ; Central nervous system ; Neuroaxonal degeneration
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary We studied three siblings and one unrelated patient with cerebrotendinous xanthomatosis (CTX). Of two unrelated patients, we examined biopsies of sural nerve, soleus muscle, and achilles tendon. We also performed neurophysiologic investigations. Another patient died, and a postmortem examination of both brain and spinal cord was made. It was concluded that both the central and the peripheral nervous system were involved in CTX, but the peripheral system only to a slight degree, and that the pathology was predominantly neuroaxonal rather than demyelinating in character.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00688117
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    On the thermodynamic limit of photovoltaic energy conversion (1981)
    Springer
    Applied physics 25 (1981), S. 119-125 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 72.40 ; 85.30 ; 85.60
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract An infinite stack ofp—n junctions with smoothly varying bandgap from ∞ to 0 is considered. AnI —V characteristic is derived, which is more correct than the classical exponential characteristic. It is shown that open-circuit operation is a reversible process and leads to the Carnot efficiency, if one defines the efficiency in the way that is usual in the theory of thermodynamic engines. If instead one uses the definition of efficiency usual in photovoltaics, open-circuit mode gives rise to zero efficiency. Then operation at maximum efficiency equals operation at maximum power and is not reversible.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00901283
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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