Sökning: "Fiske steps"

Visar resultat 1 - 5 av 21 avhandlingar innehållade orden Fiske steps.

  1. 1. Intrinsic Josephson effects in Bi2Sr2CaCu2O8 single crystals : effects of Josephson vortices on critical current and rf induced resonances

    Författare :Niklas Mros; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; critical current fluctuations; fluxon modes; Fiske steps; Bi2212; flux-flow; itrinsic Josephson effect;

    Sammanfattning : .... LÄS MER

  3. 2. Carbon and nitrogen dynamics in agricultural soils : model applications at different scales in time and space

    Författare :Thord Karlsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : An understanding of soil organic carbon (C) and nitrogen (N) dynamics is essential for efficient and environmentally sustainable agricultural production. This thesis includes model studies of C mineralization at regional/national level with annual time steps, N balances at field level with annual time steps, and N dynamics at 34 locations within a single field with daily time steps. LÄS MER

  4. 3. Knowledge in the forest planning process

    Författare :Malin Nilsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The main focus of this thesis is the use of knowledge in the forest planning process of large Swedish forest owning companies. The forest planning is conducted as a three step system: long-, medium- and short-term planning. LÄS MER

  5. 4. Modelling of Stiffness and Hygroexpansion of Wood Fibre Composites

    Författare :Kristian Stålne; Byggnadsmekanik; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Paper 1The eld of research involving the analytical modelling of the stiff ness and hygroexpansion of composite material is reviewed. This paper can be regarded as an introduction to the area of the mechanics of composite materials in general and to wood fibre composites in particular. LÄS MER

  7. 5. X-ray computed tomography to study moisture distribution in wood

    Författare :José Couceiro; Lars Hansson; Mike Milota; Luleå tekniska universitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Träteknik; Wood Science and Engineering;

    Sammanfattning : X-ray computed tomography (CT) has been used as an analysing tool for different features in wood research since the beginning of the1980s, but it can also be used to study wood-water interactions in different ways, such as by determining wood moisture content (MC). The determination of wood MC with CT requires two CT images: one at the unknown moisture distribution and a second one at a known reference MC level, usually at oven-dry condition. LÄS MER