Sökning: "spatial network models"

Visar resultat 1 - 5 av 94 avhandlingar innehållade orden spatial network models.

  1. 1. Vintage models of spatial structural change

    Författare :Lars Westin; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; adiabatic approximation; dynamics; input-output; interregional computable general equilibrium; slaving principle; spatial models; spatial linear expenditure system; spatial price equilibrium; transportation networks; vintage function;

    Sammanfattning : In the study a class of multisector network models, suitable for simulation of the interaction between production, demand, trade, and infrastructure, is presented. A characteristic feature of the class is a vintage model of the production system. LÄS MER

  3. 2. Spatial positioning : method development for spatial analysis of interaction in buildings

    Författare :Henrik Markhede; Jesper Steen; John Peponis; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Architecture; Arkitektur;

    Sammanfattning : In offices, knowledge sharing largely depends on everyday face-to-face interaction patterns. These interaction patterns may depend on how employees move through the office space. This thesis explores how these spatial relations influence individual choices with respect to employee movements or routes. LÄS MER

  4. 3. Spatial Models of Gene Patterns in Plants

    Författare :André Larsson; Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; []
    Nyckelord :computational morphodynamics; gene regulation; spatial models; plants; development; auxin; meristem; Fysicumarkivet A:2017:Larsson;

    Sammanfattning : The growth and development of plants exhibits a striking symmetry, visible in the regular arrangement of leaves and flowers. Plant development is carefully controlled at the molecular level by gene regulatory networks, and the symmetry of plants can be observed also in the molecular patterns of gene expression. LÄS MER

  5. 4. Reinforcement in Biology : Stochastic models of group formation and network construction

    Författare :Qi Ma; David Sumpter; Edward Codling; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; reinforcement in biology; merge and split model; preferential attachment; reinforced random walk; network construction; shortest path problem; transport networks; ant algorithm; slime mould; physarum polycephalum; speed-accuracy tradeoff.; Mathematics with specialization in Applied Mathematics; Matematik med inriktning mot tillämpad matematik;

    Sammanfattning : Empirical studies show that similar patterns emerge from a large number of different biological systems. For example, the group size distributions of several fish species and house sparrows all follow power law distributions with an exponential truncation. LÄS MER

  7. 5. Spatial Analysis and Modeling for Health Applications

    Författare :Lars Skog; Yifang Ban; Matthew Smallman-Raynor; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sweden; spatial analysis; spatial modeling; spatio-temporal spread; epidemiology; pandemic; walkability; health; Russian influenza; Asian influenza; A H1N1 pdm09; GWM; climate factors;

    Sammanfattning : Despite the benefits of applying methods of geographic information science (GIScience), the use of such methods in health service planning and provision remains greatly underutilized. Spread of epidemic diseases is a constant threat to mankind and the globalization of the world increases the risk for global attacks from multi-resistant bacteria or deadly virus strains. LÄS MER