Search for dissertations about: "Reduction"
Showing result 21 - 25 of 5631 swedish dissertations containing the word Reduction.
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21. Theoretical Studies on CO2 Reduction Electrocatalysts
Abstract : The atmospheric CO2 concentration has increased by more than 20% since 1980s and has now reached the highest level than at any point in the past 800 000 years. Electrochemical CO2 reductions are receiving particular in- terest as the apparatus are relatively easy to maintain and cheap to operate. READ MORE
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22. Samarium(II)-mediated Reactions in Organic Synthesis - Method Development and Mechanistic Investigation
Abstract : This thesis describes the development of methods using divalent samarium reagents in organic synthesis. The main focus is placed on functional group reductions, but reductive formation of carbon-carbon bonds has also been investigated. READ MORE
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23. Nonlinear System Identification and Control Applied to Selective Catalytic Reduction Systems
Abstract : The stringent regulations of emission levels from heavy duty vehicles create a demand for new methods for reducing harmful emissions from diesel engines. This thesis deals with the modelling of the nitrogen oxide (NOx) emissions from heavy duty vehicles using a selective catalyst as an aftertreatment system, utilising ammonia (NH3) for its reduction. READ MORE
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24. On Fluid Power Pump and Motor Design : Tools for Noise Reduction
Abstract : Noise and vibration are two of the main drawbacks with fluid power systems. The increasing requirements concerning working environment as well as machines' impact on surroundings put components and systems to harder tests. The surrounding machines, e.g. READ MORE
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25. Enzymatic Reduction of Ketones
Abstract : Methods have been studied for the production of chiral alcohols, which are of importance in organic synthesis of pharmaceuticals, agro-chemicals and fragrances, etc., through the enzymatic or microbial reduction of ketones. READ MORE