Search for dissertations about: "thesis in BIOLOGICAL CONTROL"
Showing result 1 - 5 of 1270 swedish dissertations containing the words thesis in BIOLOGICAL CONTROL.
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1. Ammonium Feedback Control in Wastewater Treatment Plants
Abstract : The aeration process is often the single largest consumer of electricity in a wastewater treatment plant. Aeration in biological reactors provides microorganisms with oxygen which is required to convert ammonium to nitrate. Ammonium is toxic for aqueous ecosystems and contributes to eutrophication. READ MORE
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2. Interaction Analysis in Multivariable Control Systems : Applications to Bioreactors for Nitrogen Removal
Abstract : Many control systems of practical importance are multivariable. In such systems, each manipulated variable (input signal) may affect several controlled variables (output signals) causing interaction between the input/output loops. READ MORE
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3. Brain Aromatase in the guppy, Poecilia reticulata : Distribution, control and role in behaviour
Abstract : Oestrogens are produced by aromatisation of androgens by the aromatase enzyme. In the vertebrate brain this synthesis has vital functions in nerve protection, cell proliferation and nerve development during injury respectively brain development. READ MORE
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4. Get in tune : chloroplast and nucleus harmony
Abstract : Photosynthetic eukaryots emerged as a result of several billion years of evolution between proeukaryotic cell and ancestral cyanobacteria that formed modern chloroplasts. The symbiotic relationship led to significant rearrangements in the genomes of the plastid and the nucleus: as many as 90 % of all the plastid genes were transferred to the nucleus. READ MORE
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5. Population Genetic Structure of Black Grouse (Tetrao tetrix) : From a Large to a Fine Scale Perspective
Abstract : Black grouse (Tetrao tetrix) is a bird species with a lek mating system found in the Palearctic boreal taiga. It is assumed that it has a continuous distribution along Scandinavia and Siberia, whereas in Central Europe it has declined during the last decades. READ MORE