Sökning: "transport coefficients"
Visar resultat 21 - 25 av 102 avhandlingar innehållade orden transport coefficients.
21. Mass transport mechanisms and module design aspects in the recovery of dilute volatile organic compounds by hydrophobic pervaporation
Sammanfattning : Hydrophobic pervaporation has gained a lot of attention as an alternative process for mild aroma recovery, but the real commercial applications of this process are still in their infancies. Better understanding of mass transport phenomena in composite pervaporation membranes is essential from the point of view of membrane manufacturing, while process simulation is an important tool for predicting pervaporation module performance. LÄS MER
22. On the Precision Grip in Manual Transport
Sammanfattning : The aim of the present study was to investigate the grip and load force relations in the precision grip (between thumb and index finger) in static and dynamic situations, and to develop automatic procedures for the analysis of position and force data from tests involving the precision grip. The goal of the work was to create physiologically based methods for identification and quantitative determination of disturbances in the nervous control of hand motor function. LÄS MER
23. Thermal transport in van der Waals Solids and Inorganic Clathrates from first-principles calculations
Sammanfattning : Energy management is arguably one of the defining challenges for our modern societies. An ever-increasing demand for energy has to be balanced with the requirement for a sustainable energy economy that minimizes the human impact on the environment. LÄS MER
24. Contaminant transport in non-uniform streams and streambeds
Sammanfattning : The interplay between hydraulic and chemical processes in streams and adjacent storage zones, e.g. streambed sediments, is of crucial importance for the large-scale transport of released contaminants. This thesis presents a methodology for tracer experiments and the development of mechanistic transport models. LÄS MER
25. Heat Transport from On-demand Single-Electron Sources
Sammanfattning : The controlled injection of quantized charge excitations from single-electron emitters into nanoscopic conductors sets the basis for many important applications ranging from metrology to the emerging field of quantum optics with electrons. Successful implementation of these applications relies not only on achieving control on the precision of the particle emission, but also on the energetic properties of the injected particles. LÄS MER