Doctoral Thesis
Recent Submissions
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Geodetic time series analysis and prediction using machine learning
(2024)Analysis and prediction of geodetic time series is a crucial task in geodesy. Specifically, time series of station position monitored by Global Navigation Satellite System (GNSS), as well as time series of variations in the rotation of the Earth---called Earth Orientation Parameters (EOPs)---are important for a host of applications. The reasons are twofold: (1) these time series represent the role of various geophysical phenomena on the ...Doctoral Thesis -
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Co-Design of Mobile Robots: Integrating Perception Systems and Motion Planning for Task-Specific Optimization
(2024)The challenges of designing embodied intelligence systems arise from the necessity to integrate diverse hardware and software components without creating excessive complexity. The goal is to ensure safety and efficiency while minimizing resources such as costs, energy, computational requirements, and weight, considering the interactions between systems. This thesis presents a new approach for designing mobile robots tailored to ...Doctoral Thesis -
Bildproduktion nach der Belichtung. Industrieforschung über den fotografischen Prozess, ca.1920-1970
(2024)Diese Arbeit leistet einen quellenbasierten Beitrag zur Geschichte der fotografischen Forschung zwischen ca. 1920 und 1970. Mit einem Schwerpunkt auf die Forschungslabore der deutschen Agfa in Berlin und Wolfen, der britischen Kodak Limited in Harrow und der schweizerischen Ciba Photochemie in Marly rekonstruiere ich, wie und in welchen ökonomischen Kontexten sich diese fotografische Forschung mit drei Problemen auseinandersetzte: der ...Doctoral Thesis -
Evolutionary adaptations to environmental changes in a cold-adapted bacterium
(2024)Doctoral Thesis -
Modeling and Control of Nanosecond Repetitively Pulsed Discharge for Plasma-Assisted Ignition
(2024)Robust ignition of hard-to-ignite fuels is essential for future spark ignited internal combustion engines, particularly for introducing efficiency-enhancing diesel-like process parameters like air excess or high amounts of exhaust gas recirculation (EGR). Adopting novel plasmabased ignition systems like Nanaosecond Repetitively Pulsed Discharge (NRPD) is promising in extending the ignition limits and the early flame development speed. ...Doctoral Thesis -
Trophic dynamics in meta-ecosystems: Insights from compound-specific stable isotopes
(2024)Food webs are crucial for understanding how carbon and nutrients flow within ecosystems, influencing sustainability and carbon fluxes. Ecosystems are interconnected, exchanging energy, nutrients, and organic matter—a concept captured by meta-ecosystem theory. Consequently, changes in one ecosystem can have cascading effects on others. This interconnectedness becomes increasingly important as global change drives significant alterations ...Doctoral Thesis -
Jet streak dynamics from a PV gradient perspective
(2024)The jet stream is a high-altitude circumpolar band of westerly winds and acts as a guide to large-scale weather systems, making it a crucial feature of the global atmospheric circulation. While the subtropical jet stream is in agreement with the thermal wind balance, the eddy-driven jet is closely connected to the storm tracks in the major ocean basins. The evolution of the North Atlantic jet stream in a warming climate is an important ...Doctoral Thesis -
Game Dynamics on Networks: Exploring Behavior Evolution with Multi-type Interactions
(2024)Doctoral Thesis -
Fouling Physics on Soft Materials and the Rational Engineering of Antifouling Heat Transfer Surfaces
(2024)Fresh water and energy are essential resources in our daily lives, interdependent, and vital for numerous processes. Water is necessary for energy production as a cooling medium, while energy is needed for effective water treatment and distribution. The limited availability of these resources, combined with challenges like climate change and population growth, stresses their interconnection, known as the water-energy nexus. A key ...Doctoral Thesis -
Local Complexity: New Results and Bridges to Other Fields
(2024)This thesis presents new results for the theory of local complexity in distributed computation and builds bridges to other areas of theoretical computer science and discrete mathematics, such as parallel, distributed, and sublinear algorithms, descriptive combinatorics, and finitary factors. We begin the thesis with an extended introduction to the area of local algorithms, particularly focusing on recent complexity-theoretic developments. ...Doctoral Thesis -
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Adaptation in Salmonella Typhimurium during infection
(2024)Salmonella infects millions of people worldwide every year. To cause disease, Salmonella Typhimurium (S. Tm) and other enteric bacterial pathogens must adapt to ever-changing conditions during and between infection. This study aims to provide insights into how these pathogens adapt, survive, and evolve under various conditions, which can help in developing new therapeutic strategies to combat infections and antibiotic resistance. Many ...Doctoral Thesis -
Modelling Global Human Displacement Risk from Weather- and Climate-Related Disasters
(2024)Human displacement, which describes the involuntary movement of people from their homes or places of habitual residence due to external stressors such as natural hazards, armed conflicts, or general violence, has seen a marked increase in attention in policy-relevant discussions. Among all the stressors, weather and climate-related disasters contribute to over 300 million of people being displaced since 2008, as reported by the Internal ...Doctoral Thesis