Sökning: "Larsson 2003"

Visar resultat 21 - 25 av 59 avhandlingar innehållade orden Larsson 2003.

  1. 21. Mixing Processes for Ground Improvement by Deep Mixing

    Författare :Stefan Larsson; KTH; []
    Nyckelord :Deep Mixing; Lime cement columns; Mixing mechanisms; Mixture quality; Field test; ANOVA; Variance reduction.;

    Sammanfattning : The thesis is dealing with mixing processes havingapplication to ground improvement by deep mixing. The mainobjectives of the thesis is to make a contribution to knowledgeof the basic mechanisms in mixing binding agents into soil andimprove the knowledge concerning factors that influence theuniformity of stabilised soil. LÄS MER

  3. 22. Soil Management Strategies to Establish Vegetation and Groundwater Recharge when Restoring Gravel Pits

    Författare :Karin Palmqvist Larsson; KTH; []
    Nyckelord :groundwater protection; soil physical properties; CoupModel; unsaturated conductivity; water retention; transpiration; soil evaporation;

    Sammanfattning : The removal of vegetation and overburden changes the naturalwater purifying processes and thus decreases the groundwaterprotection in gravel pit areas. The sand and gravel depositsusedfor aggregate extraction in Sweden are also often valuablefor extraction of groundwater as a drinking water resource. LÄS MER

  4. 23. Directed Enzyme Evolution of Theta Class Glutathione Transferase : Studies of Recombinant Libraries and Enhancement of Activity toward the Anticancer Drug 1,3-bis(2-Chloroethyl)-1-nitrosourea

    Författare :Anna-Karin Larsson; Bengt Mannervik; Ian Cotgreave; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; glutathione transferase; directed evolution; 1; 3-bis 2-chloroethyl -1-nitrosourea; alkyltransferase; recombinant libraries; chloroethylnitrosourea; multi-dimensional data analysis; Biokemi; Biochemistry; Biokemi;

    Sammanfattning : Glutathione transferases (GSTs) are detoxication enzymes involved in the cellular protection against a wide range of reactive substances. The role of GSTs is to catalyze the conjugation of glutathione with electrophilic compounds, which generally results in less toxic products. LÄS MER

  5. 24. Surgically corrected univentricular hearts. Anatomical, haemodynamic and functional status at a long-term follow-up

    Författare :Eva Strömvall-Larsson; Göteborgs universitet; []
    Nyckelord :cavopulmonary connections; univentricular hearts; long-term follow-up; pulmonary; arteriovenous malformations; lung volumes; cardiac output; pulmonary gas exchange and maximal; exercise studies;

    Sammanfattning : The Fontan operation and its modifications are applied to a large spectrum of congenital heart defectswith univentricular physiology. The Fontan circulation is characterised by a reduced, non-pulsatilepulmonary blood flow and the elevated central venous pressure is the main driving force for thepulmonary blood flow. LÄS MER

  7. 25. Designing for use in a future context : five case studies in retrospect

    Författare :Arja Vainio-Larsson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Sammanfattning : This thesis presents a framework - Use Oriented Service Design - for how design can be shaped by people-s future communications needs and behaviour. During the last ten years we have seen the telecom industry go through several significant changes. LÄS MER