Search for dissertations about: "quantitative models"

Showing result 1 - 5 of 504 swedish dissertations containing the words quantitative models.

  1. 1. Simplifying complex models : Application of modeling tools in exposure assessment of organic pollutants

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Author : Emma Undeman; Stockholms universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mass balance model; environmental modeling; exposure modeling; bioaccumulation; organic contaminants; emission estimate; plant model; steady state; poly parameter linear free energy relationship; PPLFER; ecosystem susceptibility; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; NATURAL SCIENCES Chemistry Environmental chemistry Persistent organic compounds; NATURVETENSKAP Kemi Miljökemi Persistenta organiska föreningar; tillämpad miljövetenskap; Applied Environmental Science;

    Abstract : Thousands of chemicals are used in society, but the exposure to humans and other organisms has been measured only for a small number of compounds. Modeling tools constitute low-cost and effective alternatives to measurements for the assessment of exposure. READ MORE

  2. 2. Novel Statistical Methods in Quantitative Genetics Modeling Genetic Variance for Quantitative Trait Loci Mapping and Genomic Evaluation

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Xia Shen; Uppsala universitet.; Högskolan Dalarna.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; statistical genetics; quantitative trait loci; genome-wide association study; genomic selection; genetic variance; hierarchical generalized linear model; linear mixed model; random effect; heteroscedastic effects model; variance-controlling genes; Komplexa system - mikrodataanalys;

    Abstract : This thesis develops and evaluates statistical methods for different types of genetic analyses, including quantitative trait loci (QTL) analysis, genome-wide association study (GWAS), and genomic evaluation. The main contribution of the thesis is to provide novel insights in modeling genetic variance, especially via random effects models. READ MORE

  3. 3. Quantitative Assessment of Intelligent Transport Systems for Road Freight Transport

    University dissertation from Karlskrona : Blekinge Institute of Technology

    Author : Gideon Mbiydzenyuy; Blekinge Tekniska Högskola.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Transport telematic services; Assessment; Freight transport; Quantitative; Modeling; Decision support systems;

    Abstract : In this thesis, methods for using computer-based models as support tools for assessing Transport Telematic Services (TTSs) are studied. Such assessments provide one way to understand how TTSs can address problems caused by transportation, such as accidents, emissions, and energy consumption. READ MORE

  4. 4. Quantitative Laser Doppler Flowmetry

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Ingemar Fredriksson; Linköpings universitet.; Linköpings universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Other technology Medical engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Medicinsk teknik;

    Abstract : Laser Doppler flowmetry (LDF) is virtually the only non-invasive technique, except for other laser speckle based techniques, that enables estimation of the microcirculatory blood flow. The technique was introduced into the field of biomedical engineering in the 1970s, and a rapid evolvement followed during the 1980s with fiber based systems and improved signal analysis. READ MORE

  5. 5. Quantitative diffuse reflectance spectroscopy myocardial oxygen transport from vessel to mitochondria

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Tobias Lindbergh; Linköpings universitet.; Linköpings universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : In the field of biomedical optics, diffuse reflectance spectroscopy (DRS) is a frequently used technique for obtaining information about the optical properties of the medium under investigation. The method utilizes spectral difference between incident and backscattered light intensity for quantifying the underlying absorption and scattering processes that affects the light-medium interaction. READ MORE