Search for dissertations about: "partial least squares regression PLS"

Showing result 1 - 5 of 18 swedish dissertations containing the words partial least squares regression PLS.

  1. 1. Bilinear Regression and Second Order Calibration

    University dissertation from Stockholm : Stockholm University

    Author : Marie Linder; Stockholms universitet.; [1999]
    Keywords : Natural Sciences Mathematics; Naturvetenskap Matematik; 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;

    Abstract : 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. READ MORE

  2. 2. Multivariate spectroscopic methods for the analysis of solutions

    University dissertation from Stockholm : Institutionen för analytisk kemi

    Author : Kent Wiberg; Stockholms universitet.; [2004]
    Keywords : Natural Sciences Chemical Sciences Analytical Chemistry; Naturvetenskap Kemi Analytisk kemi; 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; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi;

    Abstract : 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. READ MORE

  3. 3. Conjoint analysis as a tool for communication and corporate environmental decision-making

    University dissertation from Stockholm : Institutionen för analytisk kemi

    Author : Stina Alriksson; Högskolan i Kalmar.; [2008]
    Keywords : Engineering and Technology Environmental Engineering Other Environmental Engineering; Teknik och teknologier Naturresursteknik Annan naturresursteknik; conjoint analysis; PLS; Cluster analysis; Communication; Environmental; Decision-making; TECHNOLOGY Other technology Environmental engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Miljöteknik; Miljövetenskap; Environmental Science;

    Abstract : Conjoint analysis has been used extensively in marketing, transportation and healthcare for the past 50 years. Since the mid-1990s, it has also been applied to an increasing number of environmental issues. In this thesis, conjoint analysis is applied to environmental objectives of the Swedish steel industry. READ MORE

  4. 4. Analytical Pyrolysis - Studies of Sulfur in Coal and Pulp

    University dissertation from Analytical Chemistry (S/LTH)

    Author : Pernille Selsbo; Lunds universitet.; Lund University.; [1996]
    Keywords : pulp; sulfur; PLS; PCA; fractionated pyrolysis; FPD; analytical pyrolysis; coal; Analytical chemistry; Analytisk kemi; Kemi; Chemistry;

    Abstract : Sulfur in coal and pulp have been characterized using pyrolysis–gas chromatography with a sulfur-selective flame photometric detector (Py–GC/FPD). The samples (50–150 µg) were pyrolyzed at temperatures between 300 and 1400°C usually followed by a combustion in oxygen at high temperature (>1000°C). READ MORE

  5. 5. Nitrous oxide emission from soil : On extrapolation from soil environmental factors

    University dissertation from Linköping : Linköpings universitet

    Author : Kerstin Robertson; Linköpings universitet.; Linköpings universitet.; [1995]
    Keywords : Social Sciences Other Social Sciences Social Sciences Interdisciplinary; Samhällsvetenskap Annan samhällsvetenskap Tvärvetenskapliga studier; N20 emission; denitrification; soil factors; soil moisture; N03-; NH4 ; regression analysis; PLS analysis; IR remote sensing; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Nitrous oxide(N20) is a natural component of the atmosphere which contributes both to the greenhouse effect and to the destruction of stratospheric ozone. National as well as global inventories indicate thatboth natural and anthropogenic emissions from terrestrial ecosystems constitute a large fraction of the annual loading of N20 on the atmosphere. READ MORE