Sökning: "Catalyst"

Visar resultat 26 - 30 av 786 avhandlingar innehållade ordet Catalyst.

1. 26. Molecular Solar Thermal Energy Storage System: Evaluation of Different Candidates

   Författare :Zhihang Wang; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy storage and release; Vinylheptafulvene; Catalyst; Quadricyclane; Solar Energy; Thermal dynamics; Molecular switches; Azobenzene; Norbornadiene; Energy conversion; Dihydroazulene;

   Sammanfattning : The development of solar energy can potentially meet the growing requirements for a global energy system beyond fossil fuels, however necessitates new scalable technologies for solar energy storage. One approach is the development of energy storage systems based on molecular photoswitches, so-called molecular solar thermal energy storage (MOST). LÄS MER

3. 27. Natural Products as Leads for Pharmaceutically Active Compounds

   Författare :Pia Kahnberg; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; scaffold hopping; Catalyst; anxiety; benzodiazepine site; GABAA receptor; pharmacophore model; flavones; SAR; antifungal activity; Complex I; pterulone; Organic chemistry; Organisk kemi; Biochemical technology; Biokemisk teknik;

   Sammanfattning : In the search for new pharmaceutically active compounds, it is recognized that Nature produces structurally different compounds in a great variety. By having the compounds or extracts tested in defined systems, new drugs or more often leads (a compound that has an interesting but moderate activity) can be found. LÄS MER

4. 28. Mild Wet Torrefaction and Characterization of Woody Biomass from Mozambique for Thermal Applications

   Författare :Carlos Alberto Cuvilas; Weihong Weihong Yang; Tobias Richards; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass; Wet torrefaction; Fast Pyrolysis; kinetics; Catalyst;

   Sammanfattning : Mozambique has vast forestry resources and also considerable biomass waste material such as bagasse, rice husks, sawdust, coconut husks and shells, cashew nut shell and lump charcoal waste. The potential of the total residues from the agricultural sector and the forest industry is estimated to be approximately 13 PJ. LÄS MER

5. 29. Near field immobilization of selenium oxyanions

   Författare :Anders Puranen; Mats Jonsson; Christophe Jegou; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Se-79; Selenium; Immobilization; Redox; Iron; Corrosion; Palladium; Catalyst; Spent Nuclear Fuel; Repository; Nuclear chemistry; Kärnkemi;

   Sammanfattning : The topic of this doctoral thesis is the potential near field immobilization of the radionuclide 79Se after intrusion of groundwater into a spent nuclear fuel canister in a repository. 79Se is a non naturally occurring long lived selenium isotope formed as a result of fission in nuclear fuel. LÄS MER

7. 30. SOFC Modeling Considering Mass and Heat Transfer, Fluid Flow with Internal Reforming Reactions

   Författare :Martin Andersson; Värmeöverföring; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; COMSOL Multiphysics; Modeling; Catalyst; CFD; Transport phenomena; Internal reforming reaction; IT-SOFC; LTNE;

   Sammanfattning : Fuel cells are promising for future energy systems, since they are energy efficient and, when hydrogen is used as fuel, there are no emissions of greenhouse gases. Fuel cells have during recent years various improvements, however the technology is still in the early phases of development. LÄS MER