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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 -
Densifying Sparse VIO: a Mesh-based approach using Structural Regularities
(2018)The ideal vision system for an autonomous robot would not only provide the robot’s position and orientation (localization), but also an accurate and complete model of the scene (mapping). While localization information allows for controlling the robot, a map of the scene allows for collision-free navigation; combined, a robot can achieve full autonomy. Visual Inertial Odometry (VIO) algorithms have shown impressive localization results ...Master Thesis -
The high-speed particle phase discriminator - PPD-HS
(2018)Mixed-phase clouds (MPCs) play a critical role in the physical processes of Earth’s atmosphere. They impact the global radiation budget with their varying optical properties and can trigger precipitation events. The governing microphysical processes are complex and ice formation mechanisms are still not understood completely rendering the accurate representation of MPCs in atmo- spheric models difficult. Determining the size distribution ...Master Thesis -
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Can soil mixing improve benefits from rhizobia in rooibos (Aspalathus linearis) seedlings?
(2018)Master Thesis -
Assessing tropical cyclone weather and climate risk affecting global businesses
(2018)Extreme events such as tropical cyclones (TCs) and other natural hazards can cause significant casualties and property damage. These damages incur considerable economic losses to businesses due to business interruptions (BIs) that often have a domino effect on the supply chain. In an increasingly interconnected world, this represents a growing risk to businesses, ultimately affecting people and the long-term development of a region. The ...Master Thesis -
Moosfluh, towards a rock slope failure?
(2018)Landslides and rockfalls are critical hazards to take into account in mountainous areas and understanding their mechanisms is crucial for mitigation purposes. Due to climate change, permafrost degradation and glacial retreat are becoming more and more relevant to consider in steep terrain. Indeed critically stressed slopes might react to these rapid changes and generate an increasing number of rock failure events. In the Great Aletsch ...Master Thesis -
Characterisation of erosion/deposition processes due to lahars at Volcán de Colima, Mexico, with remote sensing techniques
(2018)Lahars are the most abundant and dangerous secondary hazard in tropical volcanic environments. These rapid volcaniclastic flow events have the potential to destroy and bury pre-existing structures tens of kilometres away from their source. A recent study revealed that 17 % of all global historical volcano-related fatalities occurred due to lahars emphasising the importance of understanding the characteristics of those processes. Hence, ...Master Thesis -
Influence of Liquid Binder Dispersion on the Size of Spherical Agglomerates of Organic Compound
(2018)The effect of the liquid binder dispersity on the size of spherical agglomerates is explored. Small primary crystals, exhibiting a needle-like habit, were prepared in a reproducible manner. The spherical agglomerates were produced by feeding the liquid binder through a capillary in various ways that affected the liquid binder dispersity. The size of the resultant agglomerates were measured by conducting the image analysis of their microscopic ...Master Thesis -