Sökning: "Bengt Stenberg"

Hittade 3 avhandlingar innehållade orden Bengt Stenberg.

  1. 1. Novel Technique to Improve High-Velocity Cold Compaction : Processing of Polymer Powders and Polymer-Based Nanocomposite High Performance Components

    Författare :Bruska Azhdar; Bengt Stenberg; Leif Kari; Mikael Rigdahl; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polymer powders; nanocomposites; high-velocity compaction; high-energy ball milling; Manufacturing engineering; Produktionsteknik;

    Sammanfattning : Compaction of polymer powders and polymer-based nanocomposites by uniaxial high-velocity cold compaction (HVC), by high-energy ball milling (HEBM) and using a novel technique, relaxation assists, was investigated with a focus on the process parameters, the compactibility characteristics, surface morphology and friction. The basic phenomena associated with HVC are explained and the general energy principle is introduced to explain the pull-out phenomenon, springback gradient, delay time, relative time of the pressure wave, and stick-slip phenomenon during the compaction process. LÄS MER

  3. 2. Evolutionary Analysis and Posttranslational Chemical Modifications in Protein Redesign : A Study on Mu Class Glutathione Transferases

    Författare :Ylva Ivarsson; Bengt Mannervik; Gun Stenberg; Richard N. Armstrong; Uppsala universitet; []
    Nyckelord :Biochemistry; glutathione transferase; evolutionary analysis; positive selection; epoxide; stereoselectivity; protein modification; Biokemi;

    Sammanfattning : Glutathione transferases (GSTs) constitute a family of multifarious enzymes that conjugate glutathione (GSH) with a wide range of electrophiles. GSTs are grouped into different classes based on protein sequence similarities. Despite high sequence identities between GSTs of the same class they often display different substrate specificites. LÄS MER

  4. 3. Performance of Magnetorheological Rubber Materials

    Författare :Mattias Lokander; Bengt Stenberg; Vince Coveny; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; magnetorheological rubber; Materialvetenskap; Materials science; Teknisk materialvetenskap;

    Sammanfattning : Magnetorheological (MR) rubber materials are the solid analogue of magnetorheological fluids; i.e. their rheological properties can be controlled continously, rapidly, and reversibly by an applied magnetic field. LÄS MER