Sökning: "Tómas Jóhannesson"

Hittade 4 avhandlingar innehållade orden Tómas Jóhannesson.

  1. 1. Synchronous Belt Mechanics and Durability - An Investigation Towards Life Prediction

    Författare :Tomas Johannesson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; load distribution model; synchronous; camshaft drives; mathematical modelling; timing; belt; dynamic; wear; simulation; automotive; belt life prediction;

    Sammanfattning : An automotive synchronous belt transmits power and assures accurate timing between the crankshaft and camshafts. The automotive industry is very competitive: there is constant pressure to increase performance and lower costs. LÄS MER

  3. 2. Towards life predicton of synchronous belts

    Författare :Tomas Johannesson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; belt life prediction; simulation; synchronous; timing; betl; mathematical modeling; dynamic; load sistribution model; automotive; camshaft drives;

    Sammanfattning : .... LÄS MER

  4. 3. Modelling calving and sliding of Svalbard outlet glaciers : Spatio-temporal changes and interactions

    Författare :Dorothée Vallot; Rickard Pettersson; Veijo Pohjola; Ken Mattsson; Tómas Jóhannesson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cryospheric science; glacier modelling; time-lapse imagery; undercutting; sliding inversion; discrete particle model; calving model; subglacial hydrology; sliding law; automatic detection method; calving events size and frequency; ocean interaction; melt water runoff; ice dynamics; ice flow model; Geovetenskap med inriktning mot naturgeografi; Earth Science with specialization in Physical Geography;

    Sammanfattning : Future sea level rise associated to global warming is one of the greatest societal and environmental challenges of tomorrow. A large part of the contribution comes from glaciers and ice sheets discharging ice and meltwater into the ocean and the recent worldwide increase is worrying. LÄS MER

  5. 4. Essays on altruism and health care markets

    Författare :Björn Persson; Handelshögskolan i Stockholm; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : This thesis consists of two parts. The first part includes two essays that deal with the pharmaceutical market, and one essay that looks at strategic incentives that arise in optimal treatment involving untried drugs. The second part, consisting of two essays, examines some implications of altruism. LÄS MER