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Quantitative partielle- oder allgemeine Gleichgewichtsmodelle stellen in der angewandten Ökonomie ein wichtiges Instrument zur Politikfolgenabschätzung dar. Aus wissenschaftlicher Sicht wird an diesen Modellen ihre mangelnde Transparenz sowie ihre Abhängigkeit von empirisch wenig gesicherten Parametern und Annahmen kritisiert. Mittels einer Meta-Analyse werden daher Studien untersucht, welche Politikfolgen der laufenden WTO-Verhandlungen (Doha-Runde) simuliert haben. Als zentrales Ergebnis zeigt sich, dass die erhebliche Varianz innerhalb simulierter regionaler Einkommensveränderungen durch vergleichsweise wenige, ermittelbare Variablen zu einem hohen Anteil erklärt werden kann. Die Ergebnisse der Meta-Regression können daher als Orientierungshilfe bei Vergleich und Bewertung existierender sowie zukünftiger Simulationsstudien dienen.

Agrarhandel --- Agrarhandels --- Analyse --- angewandter --- Gleichgewichtsmodell --- Gleichgewichtsmodelle --- Gleichsgew --- Hess --- internationalen --- Meta --- Response Surface --- WTO Doha Runde

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The wobbling motion of a 60 HP LCS scroll compressor is studied thanks to a multi-body dynamic model of the compressor in this thesis. The wobbling motion is a relative motion that appears between the two scroll elements and which consists in inclining to one side to an the other side as a wheel. The aims of this thesis are to find what are the most wobbling motion influential factors and to define what are the optimum values of these factors to obtained a wanted wobbling motion.

Design Of Experiments --- Response Surface Methods --- Scroll compressor --- Screening --- Wobbling motion --- Main effect --- Pareto diagram --- Ingénierie, informatique & technologie > Ingénierie mécanique

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Quantitative partielle- oder allgemeine Gleichgewichtsmodelle stellen in der angewandten Ökonomie ein wichtiges Instrument zur Politikfolgenabschätzung dar. Aus wissenschaftlicher Sicht wird an diesen Modellen ihre mangelnde Transparenz sowie ihre Abhängigkeit von empirisch wenig gesicherten Parametern und Annahmen kritisiert. Mittels einer Meta-Analyse werden daher Studien untersucht, welche Politikfolgen der laufenden WTO-Verhandlungen (Doha-Runde) simuliert haben. Als zentrales Ergebnis zeigt sich, dass die erhebliche Varianz innerhalb simulierter regionaler Einkommensveränderungen durch vergleichsweise wenige, ermittelbare Variablen zu einem hohen Anteil erklärt werden kann. Die Ergebnisse der Meta-Regression können daher als Orientierungshilfe bei Vergleich und Bewertung existierender sowie zukünftiger Simulationsstudien dienen.

Economic theory & philosophy --- International economics --- Development economics & emerging economies --- Agriculture & related industries --- Agricultural science --- Agrarhandel --- Agrarhandels --- Analyse --- angewandter --- Gleichgewichtsmodell --- Gleichgewichtsmodelle --- Gleichsgew --- Hess --- internationalen --- Meta --- Response Surface --- WTO Doha Runde

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Fermented foods are consumed all over the world and their consumption shows an increasing trend. They play many roles, from preservation to food security, improved nutrition and social well-being. Different microorganisms are involved in the fermentation process and the diversity of the microbiome is high.Fermented foods are food substrates that are invaded or overgrown by edible microorganisms whose enzymes hydrolyze polysaccharides, proteins and lipids to nontoxic products with flavors, aromas, and textures that are pleasant and attractive to the human consumer. Fermentation plays different roles in food processing, including the development of a wide diversity of flavors, aromas, and textures in food, lactic acid, alcoholic, acetic acid, alkaline and high salt fermentations for food preservation purposes, biological enrichment of food substrates with vitamins, protein, essential amino acids, and essential fatty acids and detoxification during food fermentation processing.

Technology: general issues --- fermented foods --- nutritional guidelines --- legislation --- national food guides --- Saccharomyces cerevisiae --- biomass --- date extract --- optimization --- response surface methodology --- kinetic models --- antifungal --- bioprotection --- bread --- Lactobacillus plantarum --- phenyllactic acid --- Aspergillus --- Penicillium --- Fusarium --- sauerkraut --- microbiome --- fermentation --- probiotics --- high-throughput sequencing --- nutrition --- health benefits --- microbiology --- health --- fermented foods --- nutritional guidelines --- legislation --- national food guides --- Saccharomyces cerevisiae --- biomass --- date extract --- optimization --- response surface methodology --- kinetic models --- antifungal --- bioprotection --- bread --- Lactobacillus plantarum --- phenyllactic acid --- Aspergillus --- Penicillium --- Fusarium --- sauerkraut --- microbiome --- fermentation --- probiotics --- high-throughput sequencing --- nutrition --- health benefits --- microbiology --- health

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Global concern about climate change caused by the exploitation of fossil fuels is encouraging the use of renewable energies. For instance, the European Union aims to be climate neutral by 2050. Biogas is an interesting renewable energy source due to its high calorific value. Today, biogas is mainly used for the production of electricity and heat by a combined heat and power engine. However, before its valorization, biogas needs to be desulfurized (H2S removal) to avoid corrosion and sulfur oxides emissions during its combustion. Biogas can be upgraded (CO2 removal) and used as vehicle fuel or injected into the natural gas grid. In the last 15 years, significant advances have occurred in the development of biological desulfurization processes. In this book with five chapters, the reader can find some of the latest advances in the biogas desulfurization and an overview of the state-of-the-art research. Three of them are research studies and two are reviews concerning the current state of biogas desulfurization technologies, economic analysis of alternatives, and the microbial ecology in biofiltration units. Biogas desulfurization is considered to be essential by many stakeholders (biogas producers, suppliers of biogas upgrading devices, gas traders, researchers, etc.) all around the world.

biotrickling filters --- in-situ biogas desulphurisation --- response surface methodology --- microbial ecology --- anoxic biotrickling filter --- desulfurization --- molecular techniques --- open-pore polyurethane foam --- anaerobic digestion --- autotrophic denitrification --- anoxic biofiltration --- Teflon --- biotrickling filter --- biogas --- desulphurisation --- H2S --- post-biogas desulphurisation --- hydrogen sulfide elimination --- removal process --- Ottengraf’s model --- packing material --- hydrogen sulfide --- open polyurethane foam --- sulfur-oxidizing bacteria --- anoxic --- PVC --- biofiltration --- PET