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Visar resultat 1 - 5 av 109 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Geochemical modelling of acid mine drainage in mill tailings : Quantification of kinetic processes from laboratory to field scale

    Författare :Sally Ursula Salmon; KTH; []
    Nyckelord :geochemistry; biogeochemistry;

    Sammanfattning : Assessment of the potentially acidic, heavy metal-ladenleachates that leave deposits of sulfide ore mill tailings andevaluation of various possible options for mill tailingremediation are scientific problems of increasing practicalimportance. High costs may be associated with the mill tailingremediation, not least after recent changes in Swedish andEuropean environmental legislation. LÄS MER

  3. 2. Social Dilemmas: The Role of Incentives, Norms and Institutions

    Författare :Marcela Ibanez Diaz; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; portfolio model of crime; norms of behavior; choice experiment; field experiment; public goods; income heterogeneity; illegal drugs; Colombia;

    Sammanfattning : The subject of this dissertation is social dilemmas. In a social dilemma situation, there is a clear incentive not to cooperate. However, if nobody cooperates, then everybody is worse off than if they had cooperated. The question we try to answer in this dissertation is what prevents non-cooperation. LÄS MER

  4. 3. Identifying Strategic Initiatives to Promote Urban Sustainability

    Författare :Carina Weingaertner; Örjan Svane; Karolina Isaksson; Dag Kittang; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sustainable urban development; transformative change; research methodology development; situations of opportunity; field of options; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : is thesis explores the overarching topic of the capacity of strategic urban development decisions and initiatives (including planning initiatives) to positively and powerfully influence the ability of a city to promote sustainable patterns of development. The work is presented in six scientific papers, the first four of which focus on the development of an inter-disciplinary conceptual framework and research methodology. LÄS MER

  5. 4. The decline of great Arctic charr in Lake Vättern : empirical and theoretical analyses of suggested causes

    Författare :Malin Setzer; Tomas Jonsson; Bo Ebenman; Mark C. Emmerson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Naturvetenskap;

    Sammanfattning : Human activity is affecting species and ecosystems all over the world. In aquatic systems negative trends can be seen for many fish stocks and potential consequences of this, for ecosystem structure and functions, are of particular concern. LÄS MER

  7. 5. On Determination of Inventory Cost Parameters

    Författare :Peter Berling; Produktionsekonomi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Produktionsteknik; Production technology; Transportteknik; Transport technology; Ordering cost; Shortage cost; Capital cost; Holding cost; Inventory control; Real options;

    Sammanfattning : Efficient inventory control depends on correct values of inventory cost parameters, such as holding costs, shortage/stockout costs and ordering/setup costs. However, there exists surprisingly little research concerning the size of these parameters or how they should be determined. This thesis is devoted to increasing our knowledge of these matters. LÄS MER