Search for dissertations about: "thesis proposal railway"
Showing result 1 - 5 of 8 swedish dissertations containing the words thesis proposal railway.
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1. Accident Risk and Environmental Assessment : Development of an Assessment Guideline with Examination in Northern Scandinavia
Abstract : In environmental impact assessment (EIA), accident risk should be considered as one impact. However, few studies have compared assessed risk levels with documented accidents. There is thus a need for assessing accuracy of risk assessment methodologies. READ MORE
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2. Hybrid digital twins: A co-creation of data science and physics
Abstract : Safety is more important than reliability or efficiency in railway, aerospace, oil & gas, and chemical industries. Regulations are very restrictive in sectors where safety is paramount. READ MORE
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3. Improving the Dynamic Design Philosophy of High-Speed Railway Bridges Using Reliability-Based Methods
Abstract : Modern railway infrastructures, especially bridges, are exposed to significant vibrations with potential safety implications. In this context, previous studies have shown the inconsistency and inadequacy of some conventional design methods necessitaing them to be improved. The assessment of safety inherently deals with uncertainties. READ MORE
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4. A new Auxiliary Converter Topology with SiC Components for Railway Applications
Abstract : Smaller size and lower weight are always the targets of the power electronic product development. This work introduces two new topologies of auxiliary converters which have the feature of fewer components and fewer number of energy conversion stages comparing with the conventional auxiliary converter used in railway applications. READ MORE
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5. Concrete Bridges : Improved Load Capacity
Abstract : There are many beautiful old structures around the world, some of which were designed for completely different purposes than their current applications. For example, Swedish railway bridges were only designed to carry axle loads up to 200 kN in the beginning of the 20th century, while modern loads can be twice as high. READ MORE