Sökning: "humid air"

Visar resultat 36 - 40 av 51 avhandlingar innehållade orden humid air.

1. 36. Reversible electroporation of Thai basil leaves as a pretreatment prior to drying

   Författare :Grant Thamkaew; Avdelningen för livsmedel och läkemedel; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stomata opening; trichome structure; stress response; viability preservation;

   Sammanfattning : As commercial dried herbs are of lower quality than fresh herbs, it is of key importance to understand the effect of pre-drying treatments and drying techniques on the quality of the dried product. Several technologies are reviewed, focusing on their effects on aroma and color, with the goal of providing an overview of various technological strategies developed for improving the quality of aromatic herbs for industrial drying. LÄS MER

3. 37. Nanoplasmonic Sensing for Materials Science

   Författare :Markus Schwind; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Freezing Melting Phase Transition; Localized Surface Plasmon Resonances; Optical Spectroscopy; Nanoparticles; Aluminum; Copper; Thin Films; Metal Oxidation and Corrosion; Quartz Crystal Microbalance with Dissipation Monitoring; Tin;

   Sammanfattning : With the rising importance of nanoscience and nanotechnology, there is a need for new sensitive and easy-to-use characterization techniques able to follow processes at the nanoscale. In this thesis different aspects of nanoplasmonic sensing for studying materials science processes at the nanoscale are demonstrated and discussed for the following model systems: oxidation/corrosion of Al and Cu and the solid-liquid phase transition of Sn. LÄS MER

4. 38. The synthesis, surface modification and use of metal-oxide nanoparticles in polyethylene for ultra-low transmission-loss HVDC cable insulation materials

   Författare :Amir Masoud Pourrahimi; Ulf W. Gedde; Alexander Bismarck; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polyethylene; metal-oxide nanoparticles; heat treatment; surface coating; humidity resistance; interfacial adhesion; nanocomposite; HVDC insulation; polyeten; metalloxid nanopartiklar; värmebehandling; ytmodifiering av partiklarna; fukt inverkan; gränsskiktsvidhäftning; nanokomposit; HVDC isolering; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : Polyethylene composites which contain low concentrations of metal-oxide nanoparticles e.g. ZnO and MgO are emerging materials for the use in insulations of extruded high-voltage direct-current (HVDC) cables. LÄS MER

5. 39. A Thermoeconomic Evaluation of CO2 Capture with Focus on Gas Turbine-Based Power Plants

   Författare :Björn Fredriksson Möller; Kraftverksteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Termisk teknik; climate change; optimisation; genetic algorithms; applied thermodynamics; Thermal engineering; AZEP; GTPOM; gas turbine; CO2 capture; thermoeconomy; termodynamik;

   Sammanfattning : The increasing emissions of carbon dioxide from fossil fuel burning are today thought to be one of the main contributors to global warming. At the same time, developing countries are striving for an increased welfare and burning more fossil fuel, which in turn is augmenting the greenhouse gas effect. LÄS MER

7. 40. Environmentally Responsive Surface Coatings of Polyion-Surfactant Ion Complex Salts

   Författare :Charlotte Gustavsson; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer; polyelectrolyte; surfactant; complex salt; surface coatings; phase behaviour; responsivness; hydration; SAXS; water-insoluble; solutes; liquid crystalline structures;

   Sammanfattning : Complexes formed between oppositely charged polyions and surfactant ions are known to have very rich phase behaviour in bulk solution. The work in this thesis investigates the possibilites of using such complexes as surface coatings. LÄS MER