Sökning: "kinetic behaviour"
Visar resultat 21 - 25 av 88 avhandlingar innehållade orden kinetic behaviour.
21. Neutronics in reactors with propagating perturbations
Sammanfattning : This thesis contains several studies of the properties of neutron noise, primarily in Molten Salt Reactors and other reactors with propagating perturbations. Both one- and two-group diffusion theory are employed to investigate the differences that arise from the movement of the fuel. LÄS MER
22. Novel Approaches for Application of Principal Component Analysis on Dynamic PET Images for Improvement of Image Quality and Clinical Diagnosis
Sammanfattning : Positron Emission Tomography, PET, can be used for dynamic studies in humans. In such studies a selected part of the body, often the whole brain, is imaged repeatedly after administration of a radiolabelled tracer. LÄS MER
23. Frequency response by wind farms in power systems with high wind power penetration
Sammanfattning : The integration of variable speed wind turbines (VSWT) in power systems is increasing in order to reduce the emission of green house gases. This increase of power electronic converter interfaced generation causes a decrease of power system inertia, increasing the risk of load shedding and system frequency instability. LÄS MER
24. Methane oxidation over palladium oxide. From electronic structure to catalytic conversion
Sammanfattning : Understanding how catalysts work down to the atomic level can provide ways to improve chemical processes on which our contemporary economy is heavily reliant. The oxidation of methane is one such example, which is important from an environmental point of view. LÄS MER
25. Characterisation of organic substances in waste materials under alkaline conditions
Sammanfattning : Organic substances are important constituents of different types of inorganic waste in that they can strongly influence the chemical behaviour and environmental properties of the waste materials. Two alkaline waste-material systems containing organic constituents were investigated: a cementitious radioactive waste repository and residues of incinerated municipal solid waste. LÄS MER