Search for dissertations about: "Diffuse-reflection"

Showing result 1 - 5 of 9 swedish dissertations containing the word Diffuse-reflection.

  1. 1. Two Problems on Existence and Approximation Related to the Boltzmann Equation

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Vladislav Panferov; Göteborgs universitet.; Gothenburg University.; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Boltzmann equation; Povzner type models; diffuse reflection; discrete-velocity models; existence for large data; weak compactness; consistency; convergence;

    Abstract : In this thesis, two different types of problems related to the Boltzmann equation of kinetic theory are studied. The first part is devoted to establishing consistency and convergence for discrete-velocity models of the Boltzmann equation. For a new such model, introduced by the author jointly with A. READ MORE

  2. 2. Astrochemical Surface Science: Water Desorption from Nanostructured Graphite

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Anna Clemens; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; intercalation; temperature programmed desorption; diffuse reflection; geometrical resonances; water ice; ultra high vacuum;

    Abstract : To date, around 180 different molecules have been identified in the interstellar medium (ISM). Some of them form molecular ices on cold interstellar dust grain surfaces. An interstellar dust grain particle is in the order of nanometres in size and is usually composed of a carbonaceous or silicatious grain core. READ MORE

  3. 3. Optical spectroscopy and fluorescence imaging for cancer diagnostics

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Pontus Svenmarker; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biomedical optics; Diffuse-reflection spectroscopy; Upconverting nanoparticles; Inverse problem; Fluorescence; Tomography; Imaging; Scattering media; Photon migration; Fysicumarkivet A:2012:Svenmarker;

    Abstract : This work presents optical methods for diagnosing cancer. A complementary method for diagnosing eye cancer was investigated using a technique developed within this work named transscleral optical spectroscopy (TOS). READ MORE

  4. 4. Diffuse Optical Spectroscopy and Imaging of Turbid Media

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Can Xu; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; upconverting nanoparticles; luminescence; fluorescence; inverse problem; diffuse reflection spectroscopy; biomedical optics; photon migration; biomedical imaging; gas spectroscopy; medical diagnostics; tomography; Fysicumarkivet A:2013:Xu;

    Abstract : This thesis deals with optical spectroscopy and imaging of complex and strongly scattering turbid media. Focus is mainly placed on three topics, being i) diffuse optical spectroscopy of choroidal tumors, ii) gas spectroscopy in scattering materials using the GASMAS (gas in scattering media absorption spectroscopy) technique, and iii) luminescence diffuse optical imaging and tomography of tissues. READ MORE

  5. 5. In Search of Scientific Methods for Conservation of Historic Silk Costumes

    University dissertation from Göteborg : Acta Universitatis Gothoburgensis

    Author : Johanna Nilsson; Göteborgs universitet.; Gothenburg University.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; HUMANIORA; HUMANITIES; silk; artificial ageing; Queen Christina; historic costumes; conservation; ATR-FTIR; SEC; DRIFTS; tensile tests;

    Abstract : 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. READ MORE