Search for dissertations about: "critical-level"

Showing result 11 - 15 of 23 swedish dissertations containing the word critical-level.

  2. 11. Polyacetylenes - in organic and biodynamic carrots

    Author : Lars Kjellenberg; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Falcarinol type polyacetylenes (FaTP) in carrots have been assigned both positive health effects and negative effects on taste, in connection with human consumption. The aim of this thesis was to contribute to the description of factors influencing the concentrations of FaTP in carrot. READ MORE

  4. 12. Analysis of High-Frequency Electrical Transients in Offshore Wind Parks

    Author : Tarik Abdulahovic; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; very fast transient; surge protection; surge; transient overvoltage; restrikes; prestrikes; breaker; voltage escalation;

    Abstract : In this thesis, a study of high frequency electromagnetic transient phenomena is performed. Models of various components needed for simulations of high frequency transients, such as for transformers, cables and breakers are developed. READ MORE

  5. 13. Investigation of Interactions between Liquid Iron Containing Oxygen and Aluminosilicate Refractories

    Author : Era Kapilasharmi; KTH; []
    Keywords : ;

    Abstract : The present work was initiated to investigate runnerrefractory corrosion by molten steel. The aim was to understandthe mechanism of inclusion formation during ingot casting. Thework is also of interest to other unit processes in steelmaking, where refractory corrosion and erosion are seriousproblems. READ MORE

  6. 14. Large Eddy Simulation of Turbulent Swirling Flows in Combustor Related Geometries

    Author : Yajing Wu; Strömningsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Swirling flow; swirler; vortex breakdown; precessing vortex core PVC ; large eddy simulation LES .;

    Abstract : This thesis deals with the physics of turbulent swirling flows. Large eddy simulation (LES) method is used to investigate the vortex breakdown process, the precessing vortex core (PVC), and the effect of swirl number and flow field configuration on swirling flows. The study is based on an open source CFD code, \textit{OpenFoam}. READ MORE

  7. 15. Four essays in housing economics

    Author : Per Åsberg; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi; Economics; Nationalekonomi; nationalekonomi; Economics;

    Abstract : This essay consists of four self-contained essays in housing economics.Essay I: A dynamic partial equilibrium asset model is used to study the capitalisation effects in themarket for owner-occupied housing that resulted from the Swedish 1991 tax reform. READ MORE