Sökning: "climatic theory"

Visar resultat 6 - 10 av 19 avhandlingar innehållade orden climatic theory.

  1. 6. A Study on the Mechanism of Plastic Shrinkage of Cement-Based Materials

    Författare :Adrian Radocea; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; capillary pressure; shrinkage; climatic conditions; cement;

    Sammanfattning : The work presented in this thesis has been concentrated on describing the mechanism of plastic shrinkage and on developing a method of calculating the progress of plastic shrinkage. The origin of plastic shrinkage and plastic shrinkage induced cracks has been investigated by many researchers during the last four decades, but no generally accepted theory could be found in the literature. LÄS MER

  3. 7. Optical Scattering Properties of Pigmented Foils for Radiative Cooling and Water Condensation: Theory and Experiment

    Författare :Torbjörn M. J. Nilsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Light scattering properties of inhomogeneous materials were investigated in this thesis. Optical properties of pigmented polyethylene foils were optimized to take advantage of radiative cooling and for water condensation. LÄS MER

  4. 8. Mesoscale dynamics and boundary-layer structure in topographically forced low-level jets

    Författare :Stefan Söderberg; Michael Tjernström; Branko Grisogono; Douw G. Steyn; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; low-level jets; boundary layer; turbulence structure; Meteorology; Meteorologi;

    Sammanfattning : Two types of mesoscale wind-speed jet and their effects on boundary-layer structure were studied. The first is a coastal jet off the northern California coast, and the second is a katabatic jet over Vatnajökull, Iceland. LÄS MER

  5. 9. Rowing social-ecological systems: morals, culture and resilience

    Författare :Jacob von Heland; Carl Folke; Sverker Sörlin; Paul Sinclair; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; resilience; culture; moral; complex social-ecological systems; southern Madagascar; Planetary Boundaries; naturresurshushållning; Natural Resources Management;

    Sammanfattning : The shift from management and governance of ecosystems to relational complex adaptive social-ecological systems (SES) emphasizes a dynamic and integrated humans-in-nature perspective. Such a shift also needs to investigate how diversity and differences in cultures and morals relate to the existence of SES. LÄS MER

  7. 10. Råg och rön : Om mat, människor och landskapsförändringar i norra Småland, ca 1550-1700

    Författare :Aadel Vestbö-Franzén; Mats Widgren; Aud Mikkelsen Tretvik; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Changes forms of cultivation; Northern Småland; Early modern period; Climate; Changes in food habits; Form; Process; Context; Regional differences; Historical geography; Time geography; Political ecology; Human geography; Kulturgeografi;

    Sammanfattning : Why did the three-field system replace annual cropping in the north-eastern part of thr county of Jönköping? Three hypotheses are presented, of which only the first is verified. The first hypothesis concerns the 'rye-bread culture' which was widely spread in southern and eastern Sweden. LÄS MER