Sökning: "structural flexibility"

Visar resultat 1 - 5 av 145 avhandlingar innehållade orden structural flexibility.

  1. 1. Wheelset Structural Flexibility and Track Flexibility in Vehicle-Track Dynamic Interaction

    Författare :Nizar Chaar; Stefano Bruni; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Vehicle-track dynamic interaction; wheelset structural flexibility; Structural and vibration physics; Struktur- och vibrationsfysik;

    Sammanfattning : This thesis investigates the influence of wheelset structural flexibility and track flexibility on the vehicle-track dynamic interaction, mainly in terms of wheel-rail forces up to 200 Hz, using simulations and measurements. The previous knowledge in this field is first reviewed and summarized, then two case studies are selected for investigation. LÄS MER

  2. 2. Flexibility through Information Sharing : Evidences from the Automotive Industry in Sweden

    Författare :Nidal Dwaikat; Esmail Salehi-Sangari; Christos Tsinopoulos; KTH; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; information sharing; demand forecast; inventory data; volume flexibility; delivery flexibility; responsiveness; delivery performance; first-tier supplier; automotive Industry; PLS-SEM; Industriell ekonomi och organisation; Industrial Engineering and Management;

    Sammanfattning : Research has validated the contribution of information sharing to performance improvement. It has also suggested that flexibility is a highly important competitive priority for those companies where demand is volatile. Several studies argue that flexibility has been recognized as a key enabler for supply chain responsiveness. LÄS MER

  3. 3. Wheelset structural flexibility and vehicle-track dynamic interaction

    Författare :Nizar Chaar; KTH; []
    Nyckelord :wheelset; structural flexibility; modal analysis; vehicle-track interaction; wheel-rail forces; mathematical modelling; simulations; measurements;

    Sammanfattning : .... LÄS MER

  4. 4. Dynamics in Protein Synthesis, Structural Studies of Translation Factors

    Författare :Martin Laurberg; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biophysics; Flexibility; Fusidic Acid; tRNA; Translation Factors; Ribosome; Molekylär biofysik;

    Sammanfattning : Protein biosynthesis is performed on ribosomes. The ribosome is a complex of ribosomal RNA and proteins forming two subunits. A messenger RNA strand is decoded on the small subunit by charged aminoacyl transfer RNA (aa-tRNA) molecules and each tRNA molecule delivers its amino acid to the growing polypeptide chain on the large subunit. LÄS MER

  5. 5. X-ray structural studies of lanthanide alkoxides

    Författare :Marat Moustiakimov; Åke Oskarsson; Stockholms universitet; []

    Sammanfattning : A number of homo- and hetero-metallic lanthanide (oxo-)isopropoxides with the general composition LnxMyO(OiPr)p(HOiPr)q has been structurally characterized by means of single crystal X-ray diffraction. The studied compounds may be divided into five groups by the geometry of their metal-oxygen core. LÄS MER