Search for dissertations about: "process substitution"

Showing result 16 - 20 of 146 swedish dissertations containing the words process substitution.

  2. 16. Rational bioenergy utilisation in energy systems and impacts on CO2emissions

    Author : Bertil Wahlund; KTH; []
    Keywords : CO2 reduction; energy system; biofuel; CHP; refining; fuel pellets; ethanol; methanol; DME; fuel substitution; sewage water; nitrification;

    Abstract : The increased concentration of greenhouse gases in theatmosphere, in particular CO2, is changing the Earth’s climate. Accordingto the Kyoto protocol, where the international community agreedon binding emission targets, developed countries are committedto reduce their greenhouse gas emissions. READ MORE

  4. 17. Inference of Hierarchical Structure in Complex Systems

    Author : Olof Görnerup; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Protein evolution; Substitution groups; Modularity; Hierarchical dynamics; RNA world; Genetic code; Aggregation; Primordial evolution; Molecular evolution; Model reduction; Self-organization; Lumping; Emergence; Coarse graining;

    Abstract : Hierarchical organization is a central property of complex systems. It is even argued that a system is required to be hierarchical in order to evolve complexity within reasonable time. A hierarchy of a system is defined as the set of self-contained levels at which the system operates and can be described on. READ MORE

  5. 18. The missing links : Towards an Informed Substitution of Durable Water Repellent Chemicals for Textiles

    Author : Steffen Schellenberger; Ian Cousins; Stefan Stolte; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : Durable water repellents (DWRs) that provide liquid repellency to functional textiles are part of an ongoing global substitution process. The process of substitution was initiated after DWRs based on side-chain fluorinated polymers (long-chain SFPs) were identified to contribute to the diffuse release of long-chain perfluoroalkyl acids (PFAAs) to the environment. READ MORE

  6. 19. Improved Environmental Performance of Products: Halocarbon Substitution, Packaging Development and Life Cycle Assessment

    Author : Tomas Rydberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Substitution of halocarbons and development of packaging were studied as examples of a product-oriented approach to environmental protection. A contribution to the development of the Life Cycle Assessment (LCA) methodology was made in order to assess the environmental performance of products. READ MORE

  7. 20. The sensational hand. Clinical assessment after nerve repair

    Author : Birgitta Rosén; Malmö Handkirurgi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; substitution of senses; artificial sensibility; reliability; validity; diagnose-specific; documentation; assessment; longitudinal; functional outcome; hand; sensibility; ulnar nerve; nerve repair; median nerve; brain plasticity; Surgery; orthopaedics; traumatology; Kirurgi; ortopedi; traumatologi;

    Abstract : Following the transection and repair of major nerve trunks in the forearm, the functional outcome is influenced by mechanisms in the peripheral, as well as in the central nervous system. In the present thesis the interest is focused on assessment of the outcome after nerve repair, central nervous factors influencing the outcome, and sense substitution to compensate for sensory loss. READ MORE