Sökning: "Kemi"
Visar resultat 1 - 5 av 5362 avhandlingar innehållade ordet Kemi.
1. Computational Studies of Chemical Interactions: Molecules, Surfaces and Copper Corrosion
Detta är en avhandling från Stockholm : KTH Royal Institute of TechnologySammanfattning : The chemical bond – a corner stone in science and a prerequisite for life – is the focus of this thesis. Fundamental and applied aspects of chemical bonding are covered including the development of new computational methods for the characterization and rationalization of chemical interactions. LÄS MER
2. Theoretical Studies of Natural Gas Hydrates and H-bonded Clusters and Crystals
Detta är en avhandling från Linköping : Linköping University Electronic PressSammanfattning : In this thesis H-bonded systems (natural gas hydrates, water clusters, and crystal ice) are studied by density functional theory (DFT) computations.Natural gas hydrates (NGHs) play an important role in energy and environmental fields: NGHs are considered as a promising backup energy resource in the near-future due to their tremendous carbon content; improper exploration of NGHs could induce geological disasters and aggravate the greenhouse effect. LÄS MER
3. Effects of methyl jasmonate on chemical defenses of conifer seedlings in relation to feeding by Hylobius abietis
Detta är en avhandling från Stockholm : KTH Royal Institute of TechnologySammanfattning : The chemical elicitor methyl jasmonate (MeJA) could replace insecticides in Europe and Asia for protection of young conifers against the pine weevil (Hylobius abietis). This thesis mainly focuses on the effects of MeJA treatment on chemical defenses of conifers from seedling batches with documented field resistance. LÄS MER
4. Dynamic Sulfur Chemistry Screening, Evaluation and Catalysis
Detta är en avhandling från Stockholm : KTHSammanfattning : This thesis deals with the design, formation and evaluation of dynamic systems constructed by means of sulfur-containing reversible reactions, in organic and aqueous media and under mild conditions.In a first part, the synthesis of thioglycoside derivatives, constituting the biologically relevant starting components of the dynamic systems, is described. LÄS MER
5. Partial methane oxidation from electronic structure calculations
Detta är en avhandling från ; Chalmers tekniska högskola; GothenburgSammanfattning : Investigating catalytic reactions with computational methods is a powerful approach to understand fundamental aspects of catalytic reactions and find ways to guide catalytic design. Partial methane oxidation is one example of a reaction with intriguing challenges, where a detailed atomistic approach may help to unravel the bottlenecks of this, as of yet, inefficient reaction. LÄS MER
