Sökning: "Diffusion processes"
Visar resultat 16 - 20 av 497 avhandlingar innehållade orden Diffusion processes.
16. Four applications of stochastic processes : Contagious disease, credit risk, gambling and bond portfolios
Sammanfattning : This thesis consists of four papers on applications of stochastic processes. In Paper I we study an open population SIS (Susceptible - Infective - Susceptible) stochastic epidemic model from the time of introduction of the disease, through a possible outbreak and to extinction. The analysis uses coupling arguments and diffusion approximations. LÄS MER
17. Computational Insights into Atomic Scale Wear Processes in Cemented Carbides
Sammanfattning : As Ti-alloys become more and more utilized the need for efficient and robust manufacturing of Ti-alloy components increase in importance. Ti-alloys are more difficult to machine than e.g. steel, mainly due to their poor thermal conductivity leading to rapid tool wear. LÄS MER
18. Drug Diffusion and Nano Excipient Formation Studied by Electrodynamic Methods
Sammanfattning : New smart drugs demand new smart drug delivery systems and also new smart analysis methods for the drug delivery process and material characterization. This thesis contributes to the field by introducing a new electrodynamic approach for studying the drug diffusion proc-esses as well as the formation of a new type of drug delivery systems, the so called mesoporous nano excipients. LÄS MER
19. Microstructure and liquid mass transport control in nanocomposite materials
Sammanfattning : Some of the biggest problems currently facing the world are closely tied to unsolved technological challenges in the material sciences. Many materials have a porous microstructure that controls their overall properties. LÄS MER
20. Estimation and Model Validation of Diffusion Processes
Sammanfattning : Estimation and Model Validation of Diffusion Processes Abstract The main motivation for this thesis is the need for estimation and model validation of diffusion processes, i.e. stochastic processes satisfying a stochastic differential equation driven by Brownian motion. LÄS MER