Sökning: "multivariate calibration."

Visar resultat 1 - 5 av 37 avhandlingar innehållade orden multivariate calibration..

  1. 1. Bilinear Regression and Second Order Calibration

    Författare :Marie Linder; Pieter Kroonenberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chemometrics; calibration; multivariate; hyphenated methods; matrix data; bilinear model; least squares; singular value decomposition; generalized rank annihilation; trilinear decomposition; parallel factor analysis; principal components regression; partial least squares; prediction; matematisk statistik; Mathematical Statistics;

    Sammanfattning : We consider calibration of second-order (or "hyphenated") instruments for chemical analysis. Many such instruments generate bilinear two-way (matrix) type data for each specimen. The bilinear regression model is to be estimated from a number of specimens of known composition. LÄS MER

  3. 2. Multivariate calibration of near infrared reflectance data from food products : experimental design, linearization and applications

    Författare :Tomas Isaksson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; principal component regression PCR ; Selection of calibration samples; nonlinear calibration; sensory analysis; linearization; multivariate calibration; locally weighed regression LWR ; heating temperature of meat; peas; calibration sample selection algorithms; multiplicative scatter correction MSC ;

    Sammanfattning : .... LÄS MER

  4. 3. Novel nonlinear multivariate calibration methods

    Författare :Greger Andersson; KTH; []
    Nyckelord :;

    Sammanfattning : The interest fornonlinear modeling has increasedconcomitantly with the increased awareness of the ubiquity ofnonlinear systems. The traditional solution in analyticalchemistry, to linearize the system by some sort of samplepretreatment, is not always an option in process analyticalchemistry. LÄS MER

  5. 4. Multivariate spectroscopic methods for the analysis of solutions

    Författare :Kent Wiberg; Sven Jacobsson; Lars Nørgaard; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemometrics; UV-Vis spectroscopy; Multivariate calibration; Lidocaine; Identity; Content; PLS; SIMCA; Non-column; Diode array UV spectroscopy; DAD; Control sample; High Capacity Analysis HCA ; Fluorescence spectroscopy; Albumin; Immunoglobulin G; HPLC-DAD; Prilocaine; Peak purity determination; PCA; PARAFAC; Partial separation; Curve resolution; Analytical chemistry; Analytisk kemi;

    Sammanfattning : In this thesis some multivariate spectroscopic methods for the analysis of solutions are proposed. Spectroscopy and multivariate data analysis form a powerful combination for obtaining both quantitative and qualitative information and it is shown how spectroscopic techniques in combination with chemometric data evaluation can be used to obtain rapid, simple and efficient analytical methods. LÄS MER

  7. 5. Multivariate integration and visualization of multiblock data in chemical and biological applications

    Författare :Tomas Skotare; Johan Trygg; David Nilsson; Alberto Ferrer; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Multivariate analysis; PCA; PLS; OnPLS; JUMBA; Multiblock; calibration transfer;

    Sammanfattning : Thanks to improvements in technology more data than ever before is generated in almost all fields of science and industry.The data is analyzed to hopefully provide valuable information and knowledge about a product or process, such as how to improve the quality of a manufactured product. LÄS MER