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Feasibility of Waste Maize Husk Valorization as a Plastic Plate Replacement in Durban, South Africa
(2022)The zero-waste project at the Warwick Junction area of Durban, South Africa promotes alternative solutions for local solid waste management. Asiye eTufelani, a local NGO and driving force of the project, has identified two unsustainable material flows that included waste maize husks generated at a local mealie (maize cobs) cooking site and polystyrene food packaging distributed at the markets. This study investigates the management, and ...Bachelor Thesis -
High-speed rail and its competitors on long-distance travel in Western Europe
(2022)High-speed rail has proven to be a viable and eco-friendly mode of transport on long-distance travel, challenging high-emission modes like the airplane or the privately owned car. This thesis is centred around the question of how a substantial mode shift from the mentioned high-emission modes to high-speed rail could be achieved in Western Europe. Firstly, different cases of highspeed rail lines across Europe were looked at in a literature ...Bachelor Thesis -
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Sustainable Operation and Thermal Concept for SpaceHopper
(2022)SpaceHopper is a three-legged, 5 kg heavy robot developed for the exploration of low gravity environments, with its main focus being the exploration of asteroids. To function in the extreme environment and maximise the science return of a mission, the robot must be able to function for as long as possible while keeping its temperature within the operating limits of the onboard electronics. This work describes the development of insulation, ...Bachelor Thesis -
Optimization for pixel farming
(2022)This thesis explores three optimization methods for pixel farming, a farming method that attempts to utilize the benefits of intercrop effects within a single field. By reducing a one dimensional version of the problem to finding Hamiltonian Paths, we demonstrate the NP-completeness of the general problem. Further we develop three methods for exploring the large search space. The first method relaxes the pixel farming problem to a fractional ...Bachelor Thesis -
Prediction of atmospheric parameters from GNSS observations and weather models with machine learning
(2021)Global Navigation Satellite Systems (GNSS) experience various delays as their signals propagate through the Earth’s atmosphere. Some sources of error, such as the ionospheric delay, can be accounted for with relative ease. Delays caused by the lowest atmospheric layer, the troposphere, however, are challenging to predict accurately due to their high spatial and temporal variability. Tropospheric delays depend on weather conditions, allowing ...Bachelor Thesis -
Optimizing geodetic VLBI Simulation Parameters using Swarm Intelligence
(2021)Mit Very Long Baseline Interferometry (VLBI) kann die Differenz der Ankunftszeit eines Signals gemessen werden, um geodätische Parameter wie die Erdorientierungsparameter zu bestimmen. Das empfangene Signal, das von extragalaktischen Quellen ausgesendet wird, ist sehr schwach, weshalb grosse Teleskope und eine hohe Samplingrate notwendig sind. Aus diesem Grund sind VLBI-Messungen zeitintensiv und teuer sowie Simulationen unumgänglich. Das ...Bachelor Thesis -
HPCG for FPGAs: A Data-Centric Approach
(2022)Field programmable gate arrays (FPGAs) have become increasingly popular in the high-performance computing (HPC) community due to their versatility in providing application-specific hardware acceleration. The main advantage of an FPGA is that it can be reconfigured as needed for each application. This property places the FPGA between general-purpose hardware like CPUs and custom-built ASICs. With the introduction of HBM memory into modern ...Bachelor Thesis