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Institutional Repository
3897 Publications
OpenAIRE 2.0+ (DRIVER OA, EC funding)
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  • CM values of regularized theta lifts

    Ehlen, Stephan Jakob (2013)
    In this thesis, special values of regularized theta lifts at complex multiplication (CM) points are studied. In particular, it is shown that CM values of Borcherds products can be expressed in terms of finitely many Fourier coefficients of certain harmonic weak Maass forms of weight one. As it turns out, these coefficients are logarithms of algebraic integers whose prime ideal factorization is determined by cycles on an arithmetic curve that parametrize special endomorphisms of CM elliptic cu...

    Integrating Printed and Digital Documents: Interaction Models and Techniques for Collaborative Knowledge Work

    Steimle, Jürgen (2009)
    Today's knowledge work is characterized by the simultaneous use of paper and digital documents. This implies disruptive transitions from paper to digital media and vice versa, particularly because interaction techniques differ in the two worlds. For instance, traditional references are created and followed differently than digital hyperlinks. This thesis advances the integration of paper and digital documents. It contributes empirically-grounded conceptual work in the fields of interaction th...

    Studies on Boron-Carbon-Nitrides (B-C-N) Leading to the Discovery of the Novel Boron Oxynitride B6N4O3

    Bhat, Shrikant (2016)
    The present thesis deals with studies on boron-carbon-nitrides (B-C-N) and with the discovery of a novel boron oxynitride (B-O-N) phase. Polymer-derived amorphous B-C-N compounds are studied under high-pressure and high temperature (HP-HT) conditions in order to investigate the formability of crystalline ternary B-C-N phases. Furthermore, the potential capability of amorphous B-C-N compounds for their electrochemical performance as promising anode materials for Li-ion battery (LIB) is evaluat...

    Untersuchung des Prägefoliendrucks im Hinblick auf die Anwendung im Elektronikbereich

    Lyashenko, Alexandra (2014)
    Die konventionellen Druckverfahren, wie Sieb-, Tief -, Flexodruck, und Inkjet sind für die Herstellung von funktionellen elektrischen Schichten sehr verbreitet. Mit diesen Verfahren ist es möglich, RFID-Antennen, OLEDs, Displays, Sensoren, Transistoren und andere elektronische Bauteile zu drucken. Ein weiteres interessantes Verfahren zur Herstellung der elektronischen Bauteile ist der Prägefoliendruck. In der grafischen Industrie wird dieses Verfahren im Verpackungssektor oder für Sicherhe...

    Organic farming and generalist predator communities

    Birkhofer, Klaus (2007)
    Organic farming systems rely on improved soil quality and biological control favored by reduced tillage and pesticide application, organic fertilizer application and crop rotation management. The first part of this study focused on the impact of organic and conventional long-term farming (DOK Trial, Switzerland), primarily characterized by fertilizer types, on major aboveground generalist predator taxa (spiders, rove beetles and ground beetles) in structurally simple (winter wheat) and comple...
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