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Investigations on the hydraulic behavior of WWTP reactors using dynamic time warping
(2010)Master Thesis -
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 -
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The formation of chlorinated organics during electrolytic urine treatment
(2012)This master thesis is part of the VUNA project which aims for nutrient recovery and treatment of urine in decentralized treatment facilities. Electrolysis is used to remove nitrogen through electrolytic ammonia oxidation. It is a promising treatment option because it is not susceptible to inflow variations. However, a disadvantage of electrolysis is that chlorinated organics, which are dangerous for environmental and human health, might ...Master Thesis -
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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 -
Particle Markov Chain Monte Carlo for Partially Observed Markov Jump Processes
(2011)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