Studies on electronical properties of defects in silicon and gallium arsenide
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Catalytic incineration is one of the methods to reduce the emissions of CO and VOCs. Low operation temperature and low catalyst cost are essential parameters for catalytic incinerators. Pt/Al2O3 catalysts are frequently used today, but the cheaper metal oxide catalysts can be very competitive if comparable overall activity is obtained. This thesis concerns how it is possible to decrease the operat
A crack model that considers general normal and shear loading is proposed. It involves elasticity, plasticity and damage and it is thermodynamically based. An essential feature of the model is its consistency with the concepts behind the fictitious crack model.
A new formulation for non-linear, elastic wave propagation, based on the pressure and density, is introduced. The formulation accounts for a non-linear relation between speed of sound and density. The pressure and density are interpolated by identical shape functions between the nodes. The equation of state is introduced in the discretized system, hence the non-linearity is enforced point-wise. Th
Deep cuts in carbon emissions to avoid dangerous climatic change will require fundamental transformations of the energy and transport systems. This is an enormous challenge for society and the political system. In order to tackle this challenge, we argue that it will be necessary to develop new institutions and institutional practices that address and give priority to long-term climate policy obje
To give the latest novel by Joyce Carol Oates a book binding design identical with one used for a novel by for instance Orhan Pamuk would be unthinkable in today’s book market. What I like to call the title specific book binding, or book cover – that is a binding or cover designed for a specific title – is something we take for granted to such an extent that we hardly even reflect over the phenome
In an attempt to shed light on the role of the polyamines, putrescine, spermidine, and spermine in cell cycle progression, polyamine biosynthesis has been analyzed during the cell cycle of Chinese hamster ovary cells, and cell cycle kinetics have been investigated in cells treated with polyamine biosynthesis inhibitors. Cells were synchronized with the mitotic detachment technique, and at various