Search for dissertations about: "Spatially explicit model"

Showing result 1 - 5 of 20 swedish dissertations containing the words Spatially explicit model.

  2. 1. Modelling animal populations

    Author : Åke Brännström; Umeå universitet; []
    Keywords : population model; stochastic population model; population dynamics; discrete time model; Beverton-Holt model; Skellam model; Hassell model; Ricker model; first principles; coupled map lattice; CML; area integral; square function; Mathematics; matematik;

    Abstract : This thesis consists of four papers, three papers about modelling animal populations and one paper about an area integral estimate for solutions of partial differential equations on non-smooth domains. The papers are: I. Å. Brännström, Single species population models from first principles. READ MORE

  4. 2. Spatially explicit electrification modelling insights : Applications, benefits, limitations and an open tool for geospatial electrification modelling

    Author : Dimitris Mentis; Mark I. Howells; Sonia Yeh; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energiteknik; Energy Technology;

    Abstract : Developing countries confront the challenge of generating more electricity to meet demands in a sustainable manner. According to the World Bank’s 2015 Global Tracking Framework, roughly 15% of world population (or 1.1 billion people) lack access to electricity, and many more rely on poor quality electricity supplies. READ MORE

  5. 3. Optimal thinning : a theoretical investigation on individual-tree level

    Author : Peter Fransson; Åke Brännström; Ola Lindroos; Oskar Franklin; Per Lundberg; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Forest management; Simulation; Optimization; Spatially explicit model; Individual-based model;

    Abstract : Paper I: In paper I, we asked how a tree should optimally allocate its resources to maximize its fitness. We let a subject tree grow in an environment shaded by nearby competing trees. The competitors were assumed to have reached maturity and had stopped growing, thus creating a static light environment for the subject tree to grow in. READ MORE

  6. 4. Wild bees in agricultural landscapes: Modelling land use and climate effects across space and time

    Author : Maria Blasi Romero; Centrum för miljö- och klimatvetenskap (CEC); []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Wild bees; Agricultural landscapes; climate change and agriculture; Phenology; Land-use; Model transferability; Ecological models; Pollination;

    Abstract : Wild bees are declining in many parts of the world, which poses a risk for crop pollination and ecosystem health. Land use and climate change are two of the main drivers of the decline, and understanding the interactive effects of these two drivers and wild bees is very important to be able to develop proper responses and mitigate future negative effects. READ MORE

  7. 5. Microsimulation Models for Disaster Policy Making

    Author : Lisa Brouwers; Magnus Boman; Nick Gotts; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Microsimulation; Policy Making; Disaster Management; Computer science; Datavetenskap;

    Abstract : Two executable simulation models for answering policy questions were designed and implemented. The first for a flood management case, and the second for a disease transmission case that is currently underway. The flood simulation model differs from earlier natural disaster simulation models in several respects. READ MORE