Search for dissertations about: "Dirk Thomas"

Found 4 swedish dissertations containing the words Dirk Thomas.

  2. 1. Lateral Stability of High-Speed Trains at Unsteady Crosswind

    Author : Dirk Thomas; Mats Berg; Sebastian Stichel; Carsten Bussmann; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle engineering; Farkostteknik;

    Abstract : Crosswind stability of rail vehicles has been a research area for several decades,mainly motivated by vehicle overturning accidents and higher speeds, but in recenttimes also by issues of lower energy consumption and track maintenance costsdemanding lower vehicle weights. During everyday operation, rail vehicles are subjectedto large lateral influences from track irregularities, track curves and crosswind,leading to large suspension deflections and increased crosswind sensitivity. READ MORE

  4. 2. On Rail Vehicle Dynamics in Unsteady Crosswind Conditions : Studies Related to Modelling, Model Validation and Active Suspension

    Author : Dirk Thomas; Berg Mats; Sebastian Stichel; Jordi Vinolas; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Fordonsteknik;

    Abstract : Crosswind stability of rail vehicles has been a research area for several decades, mainlymotivated by vehicle overturning accidents and higher speeds, but in recent times also byissues of lower energy consumption and track maintenance costs demanding lower vehi-cle weights. During everyday operation, rail vehicles are subjected to substantial lateralinfluences from track curves, track irregularities and crosswind, leading to large suspen-sion deflections and increased crosswind sensitivity. READ MORE

  5. 3. Protein production in the E. coli cell envelope

    Author : Thomas Baumgarten; Jan-Willem de Gier; Dirk-Jan Scheffers; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; E. coli; protein biogenesis; recombinant proteins; membrane proteins; secretory proteins; protein displays; outer membrane vesicles; Biochemistry; biokemi;

    Abstract : Proteins fulfil essential functions in every cell and malfunctioning proteins are often the cause of diseases. On the other hand, proteins like antibody fragments or hormones can be used to treat diseases. READ MORE

  6. 4. The PANDA electromagnetic calorimeter at photon energies below 100 MeV

    Author : Dirk Wölbing; Per-Erik Tegnér; Thomas Nilsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PANDA; vacuum photo tetrodes; electromagnetic calorimeter; fysik; Physics;

    Abstract : The PANDA  experiment (antiproton annihilation at Darmstadt) is designed for studies of the strong force in the transition region between perturbative and non-perturbative quantum chromo dynamics (QCD). It will be built and placed at the high-energy storage ring, HESR, at FAIR (Facility for antiproton and ion research) in Darmstadt and start its first experiments in 2025. READ MORE