Search for dissertations about: "NIR spectroscopy"

Showing result 1 - 5 of 39 swedish dissertations containing the words NIR spectroscopy.

  1. 1. Near-infrared gas analysis spectroscopy systems with semiconductor lasers

    Author : Lars Sandström; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; carbon dioxide; semiconductor lasers; wavelength modulation spectroscopy; NIR spectroscopy; Ammonia; frequency modulation spectroscopy; optical fiber; gas detection;

    Abstract : .... READ MORE

  2. 2. Solid state characterisation and compaction behaviour of pharmaceutical materials

    Author : Christina Gustafsson; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacy; Solid-state; Tablet; Thermal analysis; Cellulose; Spectroscopy; NMR; NIR; FT-IR; Crystallinity; MVDA; FARMACI; PHARMACY; FARMACI; farmaceutisk farmakologi; Pharmaceutical Pharmacology;

    Abstract : In this thesis, factors important in tableting operations and for tablet properties have been studied and characterised by different spectroscopic techniques as well as by some more conventionally used particle characterisation techniques. The spectroscopic techniques solid-state NMR, FT-IR and NIR spectroscopy, proved to be valuable tools in the estimation of particle and tablet properties, offering both specificity and sensitivity in the measurements. READ MORE

  3. 3. Improving interpretation by orthogonal variation : Multivariate analysis of spectroscopic data

    Author : Hans Stenlund; Johan Trygg; Tom Fearn; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; OPLS; PLS; Multivariate Analysis; Orthogonal variation; Chemometrics; hyperspectral images; FTIR; NIR; spectroscopy; Chemistry; Kemi;

    Abstract : The desire to use the tools and concepts of chemometrics when studying problems in the life sciences, especially biology and medicine, has prompted chemometricians to shift their focus away from their field‘s traditional emphasis on model predictivity and towards the more contemporary objective of optimizing information exchange via model interpretation. The complex data structures that are captured by modern advanced analytical instruments open up new possibilities for extracting information from complex data sets. READ MORE

  4. 4. Characterisation of mammalian cell culture processes with NIR spectroscopy

    Author : Per Sivertsson; KTH; []
    Keywords : near-infrared NIR spectroscopy; cell culture; mammalian cell culture; characterisation; glucose; lactate; ammonia; cell content; viability; multivariate analysis; principal component analysis PCA ; partial least squares regression PLS ; score plo;

    Abstract : The importance of recombinant proteins produced by mammaliancell culture has increased dramatically due to the discoveriesin the field of recombinant biotechnology. Therefore,optimising and gaining process knowledge about cell culture hasalso gained in interest. READ MORE

  5. 5. Light scattering and absorption in tissue - models and measurements

    Author : Annika M K Enejder; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Tissue optical properties; Light absorption; Fluorescence spectroscopy; Atomic and molecular physics; NIR spectroscopy; Fysicumarkivet A:1997:Enejder; Light scattering; Atom- och molekylärfysik;

    Abstract : In this work a number of theoretical models, describing light propagation in matter, have been applied to and developed for the examination of tissue. The aim was to model the light scattering and absorption in tissue in order to improve the understanding of underlying mechanisms of laser-based diagnostics and treatment modalities utilised for cancer and cardiovascular diseases. READ MORE