Sökning: "Mattias Olsson"
Visar resultat 1 - 5 av 16 avhandlingar innehållade orden Mattias Olsson.
1. Plasticity Driven Damage and Void Growth
Sammanfattning : Plasticity induced damage evolution is considered using a thermodynamical approach. Different postulates on how to include the effects of damage in the constitutive equations have been studied. The results reveal that a mapping, similar to that of the stress, of both the kinematic and isotropic hardening variables is to be preferred. LÄS MER
2. Contributions to Delay, Gain, and Offset Estimation
Sammanfattning : The demand for efficient and reliable high rate communication is ever increasing. In this thesis we study different challenges in such systems, and their possible solutions. LÄS MER
3. Contributions to Frequency Offset and Time Delay Estimation
Sammanfattning : The demand for reliable high rate and efficient communication is ever increasing. In this thesis we look at two different problems in such systems, and their possible solutions. LÄS MER
4. Role of the CD47/SIRPα-interaction in regulation of macrophage phagocytosis
Sammanfattning : CD47 is a cell surface glycoprotein that is expressed by virtually all cells in the body. Binding of CD47 to the macrophage receptor Signal Regulatory Protein alpha (SIRPα) yields an inhibitory signal that counteracts phagocytosis. LÄS MER
5. Sorption and Surface Complexation of Plutonium
Sammanfattning : Plutonium is a constituent of spent nuclear fuel. As such, its behavior in contact with the surfaces of solids is of interest. This behavior will affect the migration of plutonium in case it is released into the environment. The chemistry of plutonium is rather complex. LÄS MER