Sökning: "diffuse reflection"

Visar resultat 11 - 15 av 21 avhandlingar innehållade orden diffuse reflection.

  1. 11. In Search of Scientific Methods for Conservation of Historic Silk Costumes

    Författare :Johanna Nilsson; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES; silk; artificial ageing; Queen Christina; historic costumes; conservation; ATR-FTIR; SEC; DRIFTS; tensile tests;

    Sammanfattning : The general aim of this dissertation is to lay ground for the evaluation of conservation methods for historic costumes. The Royal Armoury, Stockholm has a large number of 17th century men’s garments, many of them made of silk and in need of conservation. LÄS MER

  3. 12. Structural and Magnetic Properties of Fe/Co (001) and Fe/V (001) Superlattices

    Författare :Peter Blomqvist; Jens Birch; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Tunna filmer; kristallin struktur; magnetism; järn; kobolt; vanadin; Physics; Fysik; fysik; Physics;

    Sammanfattning : The structural and magnetic properties of Fe/Co (001) and Fe/V (001) superlattices have been investigated. The thin film structures were deposited on MgO (001) substrates using a four source ultra-high-vacuum based sputtering equipment. LÄS MER

  4. 13. Optical Characterisation of Miniature Structures and Translucent Sheets for Daylighting Applications

    Författare :Jacob Jonsson; Arne Roos; Helen Rose-Wilson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Photospectrometry; Light scattering; Optical characterisation; Materialvetenskap; Materials science; Teknisk materialvetenskap;

    Sammanfattning : For a long time spectrophotometry has been a powerful method of determining optical material properties. Since the technique measures the parameters of interest, reflectance and transmittance, it is in general easy to use and interpret. LÄS MER

  5. 14. A Standard Mobile Phone as a Chemical Sensor

    Författare :Zafar Iqbal; Mats Eriksson; Stefan Klintström; Tomas Strömberg; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : This thesis describes work to investigate the potential of using an ordinary mobile phone to perform chemical sensing by colorimetric analysis of reflected light. The wide availability and familiarity of mobile phones make them excellent devices for aiding consumers in making on site tests in their everyday lives. LÄS MER

  7. 15. Lean NOx reduction over silver-alumina catalysts - Aspects on synthesis, structure and activity

    Författare :Hannes Kannisto; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; freeze-drying; HC-SCR; DRIFTS.; aromatic hydrocarbons; silver-alumina; Lean NOx reduction; selective catalytic reduction; sol-gel; characterization; catalyst preparation; kinetic modeling;

    Sammanfattning : The aim of this thesis is to increase the understanding of how to design highly active silver-alumina catalysts for selective catalytic reduction of NOx with hydrocarbons (HC-SCR) in oxygen excess at low temperatures (150-250 °C). Silver-alumina catalysts have been prepared using different methods, including a new unique preparation method developed during the thesis project. LÄS MER