Search for dissertations about: "interfacial mechanism"

Showing result 16 - 20 of 61 swedish dissertations containing the words interfacial mechanism.

  2. 16. Influence of Fluid Shear on Primary  Nucleation of Organic Compounds in Solution  Jin Liu  Doctoral Thesis

    Author : Jin Liu; Åke Rasmuson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Agitation; Primary nucleation; Induction time; Fluid shear; Energy dissipation; Mass transfer; Molecular alignment; Cluster coalescence; Butyl paraben; Curcumin; m-Hydroxybenzoic acid; Solid-liquid interfacial energy; Nuclei critical radius.; Chemical Engineering; Kemiteknik;

    Abstract : In this work, three experimental systems have been used to study the influence of agitation/ fluid shear on primary nucleation. Three organic compounds have been used with different solvents, i.e. butyl paraben in ethanol solution, curcumin in ethanol solution and m-hydroxybenzoic acid in 1-propanol solution. READ MORE

  4. 17. Lipases at interfaces

    Author : Pedro Reis; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; hydrolysis.; fat; microenvironment; depletion; surfactant; interface; Lipase; modulation; digestion; synthesis;

    Abstract : Lipases are acyl hydrolases that play a key role in fat digestion by cleaving long-chain triglycerides into polar lipids. Due to an opposite polarity between the enzyme (is hydrophilic) and their substrates (are lipophilic), the lipase reaction occurs at the interface between the aqueous and the oil phases. READ MORE

  5. 18. Computational studies of graphene and single walled carbon nanotube growth and carbonaceous polymeric nanocomposites

    Author : Shayesteh Haghighatpanah; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Graphene; functionalization; carbon nanotube; Monte Carlo; tight binding; polyacrylonitrile; polyethylene; molecular mechanics; molecular dynamics.;

    Abstract : Graphene and single walled carbon nanotube (SWNT) has attracted a lot of attention in different fields of science due to its unique electrical, mechanical, and optical properties. Controlling the growth of graphene and SWNT is a very topical subject and critical for producing material with desired properties since their properties are highly dependent on their atomic structure and it is often desirable that the material contains very few or (if possible) no defects. READ MORE

  6. 19. Interfaces in Dye-Sensitized Oxide / Hole-Conductor Heterojunctions for Solar Cell Applications

    Author : Erik Johansson; Håkan Rensmo; Hans Siegbahn; Anders Sandell; Villy Sundström; Uppsala universitet; []
    Keywords : Physics; Photoelectron spectroscopy; Solar cells; Heterojunction; Fysik;

    Abstract : Nanoporous dye-sensitized solar cells (DSSC) are promising devices for solar to electric energy conversion. In this thesis photoelectron spectroscopy (PES), x-ray absorption spectroscopy (XAS) and photovoltaic measurements are used for studies of the key interfaces in the DSSC. READ MORE

  7. 20. First-principles study of defects instructural materials

    Author : Li Ruihuan; Levente Vitos; Wei Luo; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials Science and Engineering;

    Abstract : In this thesis, first we focus on the Helium (He) and He bubbles behavior in three kinds of the most promising candidate structural materials for future fusion reactor. These materials are vanadium, silicon carbide (SiC) composites, and reduced activation ferritic-martensitic (RAFM) steels. READ MORE