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Naturwissenschaften, Mathematik und Informatik

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  • Maier, Johannes (2017-04-20)
    Local ion-transport processes in active materials of lithium-ion batteries like lithium manganese oxide are essential influenced by the microstructure but is not yet well characterised. Atom probe tomography, a method ...
  • Mei, Tingting (2017-04-19)
    Bamboos are grasses (Poaceae) that are widespread in tropical and subtropical regions. As monocots, woody bamboos have thin-wall hollow culms with abundant parenchyma and the culms are connected by rhizomes. These properties ...
  • Topacogullari, Berke (2017-04-18)
    We prove an asymptotic formula for the shifted convolution of the divisor functions \(d_k(n)\) and \(d(n)\) with \(k \geq 3\), which is uniform in the shift parameter and which has a power saving error term. Along the way, ...
  • Filor, Stephan (2017-04-13)
    In this thesis we present a novel variational cluster approximation for Heisenberg spin systems. It is based on the self-energy functional theory by Potthoff for fermionic and bosonic models with local interactions. To ...
  • Rodriguez Zorro, Paula Andrea (2017-04-11)
    The Amazon is a shelter for a huge variety of fauna and flora with the largest fluvial system and the highest diversity in the world. The biotic and abiotic factors of the floodplains serve to control the development and ...