Search for dissertations about: "coherent structure"
Showing result 16 - 20 of 181 swedish dissertations containing the words coherent structure.
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16. Ultrafast spin dynamics at the nanoscale : using coherent X-ray and terahertz radiation
Abstract : The field of ultrafast magnetism is driven by the growing need for faster and more efficient magnetic data storage, which comprises the vast majority of the digital information worldwide. However, after more than two decades of intense research, the understanding of the fundamental physical processes governing the transfer of angular momentum necessary for magnetic switching, is still lacking, partially hampered by the appropriate experimental tools. READ MORE
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17. Mixing patterns in Rushton-turbine-agitated reactors
Abstract : This Ph.D. Thesis concerns the study of mixing in Rushton turbine agitated reactors. In industrial (bio)reactors, mixing is recognised as a limiting factor that significantly affects the performance of the process. READ MORE
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18. Simulations of ultrafast photon-matter interactions for molecular imaging with X-ray lasers
Abstract : Biological structure determination has had new avenues of investigation opened due to the introduction of X-ray free-electron lasers (XFELs). These X-ray lasers provide an extreme amount of photons on ultrafast timescales used to probe matter, and in particular biomolecules. READ MORE
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19. Calculation of magnetism and its crystal structure dependence
Abstract : The subject of the present thesis is a theoretical investigation of magnetism and its crystal structure dependence by means of electronic-structure calculations from first principles. The theoretical treatment is based on density functional theory and the so called linear muffin-tin orbital method is used in its full-potential version as well as in an atomic sphere approximation. READ MORE
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20. Retroviral long Terminal Repeats; Structure, Detection and Phylogeny
Abstract : Long terminal repeats (LTRs) are non-coding repeats flanking the protein-coding genes of LTR retrotransposons. The variability of LTRs poses a challenge in studying them. Hidden Markov models (HMMs), probabilistic models widely used in pattern recognition, are useful in dealing with this variability. READ MORE