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Visar resultat 26 - 30 av 9749 avhandlingar innehållade ordet KTH..
26. Advanced Functional Materials for Intermediate-Temperature Ceramic Fuel Cells
Sammanfattning : Low to intermediate-temperature solid oxide fuel cell (SOFC, 500 oC-700 oC) based on doped ceria (DCO) electrolyte has attracted much attention during the last decade. However, DCO suffers from electronic conduction caused byreduction of Ce (IV) to Ce (III) at high temperatures and low oxygen partial pressures and has a high grain-boundary resistivity. LÄS MER
27. Studies of Steel/Slag Equilibria using Computational Thermodynamics
Sammanfattning : The main focus in the present work concerns calculations on steel/slag equilibria. Thermodynamic software and databases are now powerful and accurate enough to give reliable results when applied to complex metallurgical processes. One example is the decarburization process of high alloyed steels. LÄS MER
28. Exploring Massive Volunteered Geographic Information for Geographic Knowledge Discovery
Sammanfattning : Conventionally geographic data produced and disseminated by the national mapping agencies are used for studying various urban issues. These data are not commonly available or accessible, but also are criticized for being expensive. However, this trend is changing along with the rise of Volunteered Geographic Information (VGI). LÄS MER
29. Heat Exchange in Liquid Injected Compressors
Sammanfattning : .... LÄS MER
30. Transition Technologies for Electrification and Optimisation of Bus Transport Systems
Sammanfattning : The topical issue of climate change has increasingly become important as scenarios indicate an increase of 2.5–7.8°C in the global mean temperature by the end of this century, if no greenhouse gas emissions are reduced. LÄS MER