Sökning: "SEM"

Visar resultat 1 - 5 av 523 avhandlingar innehållade ordet SEM.

  1. 1. Caenorhabditis elegans as a model to elucidate host-pathogen interactions for human bacterial pathogens

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Microbiology, Tumor and Cell Biology

    Författare :Xiao Hui Sem; Karolinska Institutet.; Karolinska Institutet.; [2012]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : The soil nematode Caenorhabditis elegans is a popular host utilized to model bacterial virulence and microbial pathogenesis in vivo. This thesis explores the use of C. elegans for the study of host-pathogen interactions for two Gram-negative bacteria, Burkholderia thailandensis and Salmonella enterica. LÄS MER

  2. 2. Initial Oxidation of β-NiAl(Pt) Coatings and Model Alloys

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Microbiology, Tumor and Cell Biology

    Författare :Henrik Svensson; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FIB-SEM; SEM; #946; TEM; Diffusion Coatings; Metal-Oxide Interface; High Temperature Oxidation; Cavities; Platinum; -NiAl;

    Sammanfattning : The aim of this work was to investigate the oxidation properties of NiAl coatings and model materials during high temperature oxidation. One of the important issues was to elucidate the beneficial role of Pt additions. A better understanding of the involved processes provides a key for the further improvement of the coatings performance. LÄS MER

  3. 3. Microscopy of high temperature oxidation of iron and some stainless steels

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Microbiology, Tumor and Cell Biology

    Författare :Torbjörn Jonsson; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; water vapour; sulphur dioxide; FIB; X20; stainless steel; 353MA; EDX; KCl; FIB SEM; SEM; microstructure; TEM; iron; High-temperature oxidation; in-situ ESEM;

    Sammanfattning : This thesis concerns the high temperature oxidation of iron and some stainless steels. The oxide scales, as well as the subjacent metal, were investigated using a range of electron and ion microscopy techniques, including SEM, TEM, EDX and FIB. The aim was to link the microstructural observations to the oxidation mechanisms of the materials. LÄS MER

  4. 4. Microscopy investigation of the high temperature corrosion of iron and two stainless steels

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Microbiology, Tumor and Cell Biology

    Författare :Torbjörn Jonsson; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 353MA; EDX; X20; TEM; stainless steel; water vapour; iron; SEM; vaporisation; High-temperature oxidation; microstructure; FIB SEM.; sulphur dioxide; FIB;

    Sammanfattning : .... LÄS MER

  5. 5. Microstructure of Zirconium Alloys Oxidized in Steam

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Microbiology, Tumor and Cell Biology

    Författare :Pia Tejland; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EDX; ADF; TEM; Zircaloy-2; FIB-SEM; STEM; GD-OES; SPP; SEM; Zirconium; HAADF;

    Sammanfattning : Zirconium alloys are widely used in nuclear reactors as fuel cladding tubes because of their low thermal neutron capture cross-section, good corrosion properties and satisfactory mechanical properties. However, the main limiting factor of these materials is the oxidation behavior. LÄS MER