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Visar resultat 1 - 5 av 27 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Svenska städer i medeltidens Europa : En komparativ studie av stadsorganisation och politisk kultur

   Författare :Sofia Gustafsson; Göran Dahlbäck; Gabriela Bjarne Larsson; Dag Lindström; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; the Middle Ages; medieval history; town history; political culture; council; community; town administration; bailiff; town lord; alderman; mayor; Europeanization; Lübeck; Swedish towns; History; Historia;

   Sammanfattning : How did the Swedish towns compare to the surrounding world during the late Middle Ages concerning town organization and political culture? Previous research has claimed a strong German influence on the Swedish town life, but in this dissertation the Europeanization is being put forward as the explanatory factor for the extensive international similarities that can be identified during the Middle Ages. The towns were part of an international town culture that was highly integrated. LÄS MER

3. 2. Conversion processes for biofuel production

   Författare :Jerry Luis Solis; Yohannes Kiros; Mohammad Taherzadeh; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Second-generation biofuels; biodiesel; heterogeneous catalysts; non-edible oils; ethanol; residual biomass; native yeast strains.; Andra generationens biobränslen; biodiesel; heterogena katalysatorer; oätliga oljor; etanol; rester av biomassa; naturliga jäststammar; Chemical Engineering; Kemiteknik; Energy Technology; Energiteknik;

   Sammanfattning : Despite the global positive impacts of soybean-, maize- and sugarcane-based (first-generation) liquid biofuels, several drawbacks pertaining to increased use of agricultural land, causing deforestation in some countries and extensive practice of fertilizers have been observed. As a result, developing advanced (second- and third-generation) liquid biofuels have been identified as better alternatives and are considered to be of great importance in the future. LÄS MER

4. 3. Incumbency, divided government, partisan politics and council size : Essays in local political economics

   Författare :Ronny Freier; Handelshögskolan i Stockholm; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

   Sammanfattning : This thesis comprises four empirical papers, each devoted to a specific topic in local political economics. Paper one and two evaluate the importance of the mayor position to the future electoral success of the mayor’s party. LÄS MER

5. 4. Turbomachinery Aeroacoustic Calculations using a Time Domain Chorochronic Method

   Författare :Martin Olausson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rotor Stator interaction; Fan-Noise; Time lag; Chorochronic; Nonlinear; Computational Aeroacoustics;

   Sammanfattning : Noise regulations for aircrafts that fly over populated areas are continuously becoming stricter. This in combination with increasing computational capabilities has boosted interest in aeroacoustic computations in the aerospace industry. LÄS MER

7. 5. Multiscale materials design of hard coatings for improved fracture resistance and thermal stability

   Författare :Phani Kumar Yalamanchili; Magnus Odén; Naureen Ghafoor; Emilio Jiménez-Piqué; Jon Molina; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Physical vapor deposited hard coatings comprised of cubic (c) transition metal (TM)-Al-N, and (TM)-Si-N are the current workhorse materials for a large number of metal cutting and wear resistant applications to fight against the extreme conditions of temperature and stress simultaneously. In spite of a high degree of sophistication in terms of material choice and microstructural design, a lower fracture resistance and limited thermal stability of the coatings remains a technological challenge in the field. LÄS MER