Sökning: "slash"

Visar resultat 6 - 10 av 11 avhandlingar innehållade ordet slash.

  1. 6. Impacts of stumps and roots on carbon storage and bioenergy use in a climate change context

    Författare :Ylva Melin; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : As a result of national and international greenhouse gas emissions reduction targets, economic incentives and political desires to be more independent regarding energy supplies, there is interest in substituting fossil fuels with renewable energy sources, such as forest fuels. Stump harvesting could be an option to further increase the bioenergy potential in forested countries; currently stump harvesting is carried out on a pilot basis in Sweden. LÄS MER

  3. 7. Reforestation by direct seeding of beech and oak : influence of granivorous rodents and site preparation

    Författare :Maria Birkedal; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : In southern Scandinavia there is a general desire to increase the amount of broadleaved forest using, for example, beech and oak, in order to preserve biodiversity and spread risk in the face of climate change. In order to realise this goal cheaper regeneration methods are needed. LÄS MER

  4. 8. Aerodynamic and Aeroacoustic Analysis of a Multi-Element Airfoil using Hybrid RANS/LES Modeling Approaches

    Författare :Bastian Nebenführ; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ffowcs-Williams and Hawkings; HYB0; noise; hybrid RANS LES; multi-element airfoil; CAA; Kirchhoff; Curle; high-lift;

    Sammanfattning : Global hybrid RANS/LES simulations were used for computing the turbulent flow around a three-element airfoil. Based on the results of the flow computations, a comprehensive analysis of the flow properties was performed. LÄS MER

  5. 9. 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

  7. 10. Forest restoration using direct seeding of oak – Odor cues from predators as a seed protection strategy against foraging rodents

    Författare :Adrian Villalobos; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In forest restoration of oak, planting nursery-growth seedlings is related to high operational costs. One cost-efficient alternative is the application of direct seeding. However, acorn removal by rodents is one of the major drawbacks in its implementation. LÄS MER