Sökning: "environment void"
Visar resultat 1 - 5 av 15 avhandlingar innehållade orden environment void.
1. Avhandling / Av_handling (Dissertation / Through_action)
Sammanfattning : If we are being-of-the-world, how can we ever avoid participation? From this question Avhandling / Av_handling (Dissertation / Through_ action) unfolds. It invites to engage in an ongoing continuum of entanglements, where the moment of connection is unavoidable. LÄS MER
2. Towards Model-Based Condition Monitoring of Railway Switches and Crossings
Sammanfattning : Railway switches and crossings (S&C, turnouts) connect different track sections and create a railway network by allowing for trains to change between tracks. This functionality comes at a cost as the load-inducing rail discontinuities in the switch and crossing panels cause much higher degradation rates for S&C compared to regular plain line track. LÄS MER
3. First-principles study of the multiple He trapping in defects in vanadium and SiC
Sammanfattning : In fusion environment, large amount of helium (He) atoms are produced by transmutation along with structural damage in the structural materials, causing materials swelling and degrading of physical properties. In this thesis, using first-principles method, I examined the microscopic mechanism of He trapping in vacancies and voids in structural materials (vanadium solid and 6H–SiC composites). LÄS MER
4. Advanced fuels for thermal spectrum reactors
Sammanfattning : The advanced fuels investigated in this thesis comprise fuels non− conventional in their design/form (TRISO), their composition (high content of plutonium and minor actinides) or their use in a reactor type, in which they have not been used before (e.g. nitride fuel in BWR). LÄS MER
5. The importance of waves in space plasmas : Examples from the auroral region and the magnetopause
Sammanfattning : This thesis discusses the reasons for space exploration and space science. Space plasma physics is identified as an essential building block to understand the space environment and it is argued that observation and analysis of space plasma waves is an important approach.Space plasma waves are the main actors in many important processes. LÄS MER