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Online Publikationen der Universität Stuttgart
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9701 Publications
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  • Kommunale Demokratie

    Gabriel, Oscar W.; Holtmann, Everhart (1993)
    Die Ausgestaltung des Rechts der kommunalen Selbstverwaltung gehört in Deutschland traditionell zu den Gesetzgebungskompetenzen der Länder. Aus diesem Grunde enthält das Grundgesetz nur sehr allgemeine Bestimmungen über die Organisation und die Aufgaben der Gemeinden und Gemeindeverbände. Für die Organisation der Inneren Gemeindeverfassung eröffnet es zwei Möglichkeiten: eine Verfassung nach den Grundsätzen der repräsentativen oder der unmittelbaren Demokratie. Das direktdemokratische Prinzip...

    Über die Ethoxylierung von Octanol im Mikrostrukturreaktor

    Rupp, Matthias (2015)
    Die basisch katalysierte ringöffnende Polymerisation von Ethylenoxid mit Octanol (Ethoxylierung) wurde in einem kontinuierlich betriebenen Mikrostrukturreaktor untersucht. Es wurde die Kinetik dieser Reaktion unter intensivierten Bedingungen ermittelt. Die Reaktion wurde homogen in der Flüssigphase durchgeführt, bei Drücken bis 100 bar und Temperaturen im Bereich von 130 °C bis 240 °C. Für die Propagationsreaktion eine Aktivierungsenergie von 73 kJ/mol gefunden. Es wurde gezeigt, dass die Pro...

    The last-seen image : an image-based approach for finding lost objects using a head-mounted display

    Boldt, Robin (2014)
    Considering the current development of commercial head-mounted displays (HMD), it is likely that HMDs will be widely used in the near future. Therefore, it becomes feasible to build systems that rely on HMD technology. Real-world search engines aim at supporting the user's search capabilities in the real world. HMDs are a possible device to guide a user towards the location of an object. To ensure a high usability, it is essential to find suitable location representations of search results on...

    Diffraction stress analysis of thin films - investigating elastic grain interaction

    Kumar, Atul (2005)
    The components of the macroscopic, mechanical stress tensor of a polycrystal can be determined by X-ray diffraction stress analysis. Traditional diffraction stress analyses generally presuppose that (i) the specimen is macroscopically elastically isotropic (ii) no depth gradients (of, for example, the stress state) occur. These conditions are often not fulfilled for thin films or surface regions of bulk polycrystals. As a consequence, erroneous results can be obtained. This work is dedicated ...

    Synthesis, characterization and chemical behaviour of small paramagnetic Pt species inside zeolites studied by EPR, XAS and FTIR

    Akdogan, Yasar (2009)
    Monovalent and trivalent platinum cations called non-classical oxidation states, were both stabilized in NaX zeolite after oxygen calcination. The low Si/Al ratio (Si/Al = 1.23) of the zeolite and the formation of Brønsted acid centers during the autoreduction process help to obtain these states. Characterization of the Pt cations was done by XANES, EXAFS, FTIR and mainly X-band EPR. (1) Paramagnetic Pt+ and Pt3+ cations were assigned by X-band EPR spectroscopy. Their appearance and interc...
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