Sökning: "Byggvetenskap"

Visar resultat 21 - 25 av 180 avhandlingar innehållade ordet Byggvetenskap.

  1. 21. Winter maintenance and cycleways

    Författare :Anna Bergström; KTH; []
    Nyckelord :cycleways; winter maintenance; maintenance service level; mode choice; winter cycling frequency; winter road condition assessment; bicycle measurements; friction measurement; winter maintenance equipment;

    Sammanfattning : Increasing cycling as a means of personal travel couldgenerate environmental benefits if associated with acorresponding decrease in car-based transport. In seeking topromote cycling in wintertime, it is desirable to understandhow important the road surface condition is compared to otherfactors in people's decision to cycle or not. LÄS MER

  3. 22. Form pressure generated by self-compacting concrete : influence of thixotropy and structural behaviour at rest

    Författare :Peter Billberg; Johan Silfwerbrand; Kamal Khayat; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; self-compacting concrete; thixotropy; structural build-up; form pressure; rheometer; viscometer; instrumented pressure tube; Building engineering; Byggnadsteknik;

    Sammanfattning : Self-compacting concrete (SCC) offers rational and fast casting process since it merely has to be poured, or pumped, into the formwork without any compaction work needed. But this can be at the cost of high form pressure. However, reported results show that SCC can act thixotropically, i.e. LÄS MER

  4. 23. Distribution of Ventilation Air and Heat by Buoyancy Forces inside Buildings : An Experimental Study

    Författare :Claes Blomqvist; Mats Sandberg; Per Heiselberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; building ventilation; thermal forces; buoyancy; gravity currents; large openings; heating; air quality; forced convection; free convection; Building engineering; Byggnadsteknik;

    Sammanfattning : The main task of the ventilation system in a building is to maintain the air quality and (together with the heating or cooling system) the thermal climate at an acceptable level within the building. This means that a sufficient amount of ventilation air at the appropriate temperature and quality must be supplied to satisfy thermal comfort and air quality demands and that this air is distributed to the parts of the building where people reside. LÄS MER

  5. 24. Okoventionell tillförsel av ventilation

    Författare :Claes Blomqvist; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 25. The wealth of regions : geographic concentration , entrepreneurship and regional growth

    Författare :Benny Borgman; Pontus Braunerhjelm; Roger Svensson; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Sammanfattning : This thesis consists of three individual essays and an introductory chapter. The essays contribute to the current vein of empirical literature on economic geography and entrepreneurship. LÄS MER