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Visar resultat 1 - 5 av 9 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Rheological and fatigue characterisation of asphalt concrete mixtures using uniaxial testing

    Författare :Robert Lundström; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 2. Comparing Procurement Methods in Road Construction Projects : Influence on Uncertainty, Interaction and Knowledge

    Författare :Robert Lundström; Martin Johanson; Amjad Hadjikhani; Jaana Tähtinen; Uppsala universitet; []
    Nyckelord :Procurement methods; uncertainty; interaction; knowledge; construction; network; project; Business Studies; Företagsekonomi;

    Sammanfattning : The construction sector is often considered to show a number of limitations regarding efficiency and effectiveness, conclusions normally drawn irrespective of project procurement method used, and despite the common assumption that differences among approaches exist regarding these aspects. The study investigates differences and similarities among procurement methods using a longitudinal multi-case study based on two comparatively large infrastructure projects: a traditional so-called design-bid-build project and an unconventional so-called design-build-maintain project. LÄS MER

  4. 3. On Rheological Testing and Modelling of Asphalt Mixtures with Emphasis on Fatigue Characterisation

    Författare :Robert Lundström; KTH; []
    Nyckelord :Rheology; Fatigue; Asphalt mixtures; Damage Mechanics; Viscoelasticity;

    Sammanfattning : .... LÄS MER

  5. 4. Organelle movement in melanophores: Effects of Panax ginseng, ginsenosides and quercetin

    Författare :Therese Eriksson; Rolf Andersson; Samuel Svensson; Ingemar Lundström; Robert Kronstrand; Per Hammarström; Linköpings universitet; []
    Nyckelord :melanophores; Panax ginseng; ginsenosides; quercetin; organell anterograde transport; endothelin-3; mitogen activated protein kinase; protein kinase C; MEDICINE; MEDICIN;

    Sammanfattning : Panax ginseng is a traditional herb that has been used for over 2000 years to promote health and longevity. Active components of ginseng include ginsenosides, polysaccharides, flavonoids, polyacetylenes, peptides, vitamins, phenols and enzymes, of which the ginsenosides are considered to be the major bioactive constituents. LÄS MER

  7. 5. Implementation and evaluation of an HMA fracture mechanics based design module

    Författare :David Gullberg; Björn Birgisson; Robert Lundström; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

    Sammanfattning : A thickness design module for flexible pavements, based on the HMA fracture mechanics framework, has been developed in order to design against premature failure caused by cracking. The HMA fracture mechanics based design module has been evaluated by designing typical Swedish pavements under typical Swedish climate and loading conditions and comparing the results with a reference design framework. LÄS MER