Search
Results
-
Marine boundary layer stable water isotope variability in the Southern Ocean
(2019)The Southern Ocean overturning strength constitutes an essential control mecha- nism for future anthropogenic carbon uptake. The atmospheric water cycle, in turn, exerts an influence on upwelling intensity via buoyancy forcing induced by fresh- water fluxes. Stable water isotopes (H216O, H218O, HDO) are a powerful tool to constrain processes of the atmospheric water cycle and can therefore help to gain a more comprehensive picture on the ...Master Thesis -
Optical Flow PIV
(2013)A technique to analyze Particle Image Velocimetry (PIV) images with strong refractive distortion is presented. Based on a muti-level optical flow algorithm, the approach has been benchmarked with synthetically generated PIV images, and has been successfully applied to both experimental PIV and Laser Induced Fluorescence (LIF) images. To improve velocity field estimation, new symmetric spline and advection warping methods are proposed ...Master Thesis -
Exploring Ferroelectric Quantum Criticality and Superconductivity in KTaO3
(2018)Electron-doped cubic perovskite KTaO3 has recently been shown to become superconducting at temperatures below 50 mK [1]. In the closely related material SrTiO3, a ferroelectric quantum critical point was proposed to be the origin of superconductivity [2]. In this work, using first-principles calculations, we show that a ferroelectric quantum critical point emerges with electron doping in KTaO3, lying at doping values close to the emergence ...Master Thesis -
Mitarbeitermotivation im öffentlichen Dienst am Beispiel der wissenschaftlichen Bibliotheken in Deutschland
(2014)Berliner Handreichungen zur Bibliotheks- und InformationswissenschaftDer öffentliche Dienst in Deutschland ist gekennzeichnet durch einen im Vergleich mit der Privatwirtschaft hohen Anteil von Mitarbeiterinnen und Mitarbeitern mit geringer Leistungsmotivation. Die Erhöhung der Teamleistung durch Motivierung von Personal, das eine freizeitorientierte Schonhaltung" (Weinert) an den Tag legt, stellt für Führungskräfte im öffentlichen Dienst eine besondere Herausforderung dar, da ihre Handlungsspielräume sowohl ...Master Thesis -
The Connection between the Madden-Julian Oscillation and European Weather Regimes and its Modulation by low frequency Forcings
(2017)Progress in extended range numerical weather prediction for Europe relies on a correct representation of the large-scale midlatitude circulation which can be described by specific weather regimes for the Atlantic-European region. Therefore, it is important to understand their life cycles and identify processes that are responsible for their favoured occurrence, persistence or transition. Recent studies have shown that convectively active ...Master Thesis -
Analysis of advanced material models for complex industrial processes
(2016)The work presented analyzes a number of associated and non-associated constitutive models and discusses their advantages and disadvantages. Additionally, new models are introduced to attempt to combine the advantages of both methods. To be able to evaluate a large number of models under similar conditions, all models tested have been implemented in a user defined subroutine written in Fortran90 for LS-Dyna. Based on previous work, an ...Master Thesis -
Identifying topological states in matter
(2015)The rise of topological insulators, semimetals and superconductors established the topology of the electronic band structure as a fundamental material property. Topological materials can realize exotic novel quantum states such as an integer quantum Hall state in the absence of an external magnetic field, quasiparticle states needed for topological quantum computing, and many more. The topological nature of these states makes them insensitive ...Master Thesis -
One-shot Face Reenactment
(2019)To enable realistic shape (e.g. pose and expression) transfer, existing face reenactment methods rely on a set of target faces for learning subject-specific traits. However, in real-world scenario end-users often only have one target face at hand, rendering existing methods inapplicable. In this work, we bridge this gap by proposing a novel one-shot face reenactment learning framework. Our key insight is that the one-shot learner should ...Master Thesis -
Assessing Climate Change Impacts on the Vegetation of the Canton of Zurich
(2019)Climate on our planet is changing. The canton of Zurich, in following the global trend, is expected to face warmer temperatures throughout the year and dryer summers in most parts of the canton. These climatic changes have an effect upon ecosystems and biodiversity, and pose major challenges for many species. As a consequence, the canton of Zurich has developed a series of action plans to address the risk of biodiversity loss. This thesis ...Master Thesis