Sökning: "Spatially explicit model"

Visar resultat 1 - 5 av 21 avhandlingar innehållade orden Spatially explicit model.

  1. 1. Modelling animal populations

    Författare :Åke Brännström; Umeå universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  7. 5. Policyspridning som översättning : Den politiska översättningen av metadonbehandling och husläkare i Sverige

    Författare :Björn Johnson; Statsvetenskapliga institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Policy Translation; Political Translation; Social Constructivism; Policy Diffusion; Garbage Can Model; Methadone Maintenance Treatment; Institutional Theory; Family Doctor System; Sweden; Political and administrative sciences; policydiffusion; social konstruktivism; konstruktionism; soptunnemodellen; nyinstitutionell teori; metadonbehandling; husläkare; Sverige; politisk översättning; Översättning; policyöversättning; Statsvetenskap; förvaltningskunskap;

    Sammanfattning : This thesis discusses an alternative to the conventional policy diffusion approach, i.e. the social constructivist translation perspective. LÄS MER