Sökning: "dissipative structure"
Visar resultat 1 - 5 av 15 avhandlingar innehållade orden dissipative structure.
1. Dissipative formation of galaxies in hierarchical cosmology
Sammanfattning : A description and detailed tests of a numerical code for simulations of galaxy formation is presented. The dynamics is followed with fully adaptive and Lagrangian Smooth Particle Hydrodynamics (SPH) combined with a gravitational tree method. The severe numerical problem of sub-resolution clustering is solved by merging of gas particles. LÄS MER
2. Energy, entropy and exergy in the atmosphere
Sammanfattning : .... LÄS MER
3. Dissipative Processes in Superconducting Diffusive Tunnel Junctions
Sammanfattning : A central subject of this thesis is the dissipative current transport in superconducting tunnel junctions with diffusive electrodes. Tunnel current transport in superconducting junctions is a classical topic of interest and research. LÄS MER
4. Simulations of Transport Phenomena and Porous Structures Using Dissipative Particle Dynamics
Sammanfattning : The topic of this work is simulations of porous materials and transport phenomena at a mesoscopic length scale, i.e., a length scale larger than an individual atom but smaller than the continuum. The porous material studied is a membrane used in fuel cells. LÄS MER
5. Formation and Dynamics of Molecular Excitons and their Fingerprints in Nonlinear Optical Spectroscopy
Sammanfattning : An efficient transfer of energy in molecular systems has proven to be of fundamental importance both in nature and industrial applications. The ability of molecules to work together forming collective excitations, so-called excitons, plays a key role in for example the extraordinary fast energy transfer involved in the first steps of photosynthesis. LÄS MER