Sökning: "stochastic growth rate"

Visar resultat 11 - 15 av 37 avhandlingar innehållade orden stochastic growth rate.

  1. 11. Structural and evolutionary aspects of stochastic processes

    Författare :Olof Görnerup; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Proto-cells.; Emergence; Self-organization; Coarse graining; Model reduction; Hierarchical dynamics; Pre-biotic evolution; Complexity;

    Sammanfattning : Stochastic processes constitute a broad class of objects of central importance in complex systems. The main structural aspect of stochastic processes that is treated in this thesis is their hierarchical dynamics. LÄS MER

  3. 12. Fire behaviour of selected polymeric materials : Numerical modelling and validation using microscale and bench scale test methods

    Författare :Abhishek Bhargava; Avdelningen för Brandteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DAEM; pyrolysis modelling; Polymer flammability; mass loss rate; Heat release rate HRR ;

    Sammanfattning : The ability to predict fire behaviour of materials is of key interest to building materials industry. Themain reason for it is expensive fire testing and certification costs borne by the manufacturers to bring a finished product to market. LÄS MER

  4. 13. POPULATION DYNAMICS AND TREE GROWTH STRUCTURE IN MATHEMATICAL ECOLOGY

    Författare :Tin Nwe Aye; Linus Carlsson; Sergei Silvestrov; Masood Ayapoor; Christian Engström; Mälardalens högskola; []
    Nyckelord :Mathematics Applied Mathematics; matematik tillämpad matematik;

    Sammanfattning : This thesis is based on four papers related to mathematical biology, where three papers focus on population dynamics and one paper concerns tree growth and stem structure. The first two papers are mainly devoted to studying the dynamics of physiologically structured population models by using Escalator Boxcar Train (EBT) method. LÄS MER

  5. 14. Contributions to linear discriminant analysis with applications to growth curves

    Författare :Edward Kanuti Ngailo; Martin Singull; Dietrich von Rosen; Anuradha Roy; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis concerns contributions to linear discriminant analysis with applications to growth curves.Firstly, we present the linear discriminant function coefficients in a stochastic representation using random variables from the standard univariate distributions. LÄS MER

  7. 15. Plant Population Dynamics and Conservation in Wooded Hay-Meadows – Effects of Intensified Management

    Författare :Lotta Wallin; Brita M. Svensson; Mikael Lönn; Johan Ehrlén; Uppsala universitet; []
    Nyckelord :Biology; coordinates; demographic model; dispersal; hay-meadow; Hypochoeris maculata; litter; management; Polygala amarella; stochastic modelling; Succisa pratensis; Biologi;

    Sammanfattning : The decrease in number and area of managed hay-meadows over the last century, in combination with the reduction of traditional management, threatens the biodiversity connected to these habitats. I experimentally examined how management intensity affected meadow characteristics and long-term population viability of three vascular plant species in wooded hay-meadows on the Swedish island of Gotland in the Baltic Sea. LÄS MER