Sökning: "Separated boundary conditions"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Separated boundary conditions.

  1. 1. Shadow effects in open cross-sections : An analysis of steel temperatures with COMSOL Multiphysics, TASEF and Eurocode

    Master-uppsats, Luleå tekniska universitet/Byggkonstruktion och brand

    Författare :Lucas Andersson; [2018]
    Nyckelord :Shadow effects; Construction; Fire; COMSOL; TASEF; EUROCODE; Steel; Thermal radiation; Separated boundary conditions;

    Sammanfattning : Steel is a material commonly used in various constructions such as high-rise buildings, sport arenas, ships etc. Steel is a versatile building material due to its isotropic characteristics, e.g. both high tensile- and compressive strength. LÄS MER

  3. 2. Utomjordingar och vetenskap : Konstruktionen av vetenskap inom UFO-Sverige 1970-1996

    Master-uppsats, Södertörns högskola/Institutionen för historia och samtidsstudier

    Författare :Julia Falk; [2016]
    Nyckelord :Science; UFO - movement; Boundary - work;

    Sammanfattning : This thesis examines how science is constructed in relation to the UFO-movement. More specifically, it examines how the Swedish UFO organisation UFO-Sverige (UFO-Sweden) has changed when it, during the years of 1970-1996, adopted scientific ambitions. LÄS MER

  4. 3. Lower hybrid drift wave properties in space

    Uppsats för yrkesexamina på avancerad nivå, Institutet för rymdfysik, Uppsalaavdelningen

    Författare :Cecilia Norgren; [2011]
    Nyckelord :Lower hybrid drift waves; Lower hybrid drift instability; Cluster; Magnetotail; Plasma;

    Sammanfattning : The whole universe is filled with plasma. There are different kinds of plasmas filling large volumes, separated by distinct boundaries. Many important energy conversion, particle acceleration and plasma transport processes occur at these boundaries, and therefore it is important to study the plasma processes there. LÄS MER

  5. 4. Palynostratigraphy and palaeoclimatic analysis of Lower-Middle Jurassic (Pliensbachian - Bathonian) of the Inner Hebrides, NW Scotland

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Sissa Stefanowicz; [2008]
    Nyckelord :palynologi; jura; miospor; paleoklimat; Inre Hebriderna; Skottland; palynology; Jurassic; miospore; palaeoclimate; Inner Hebrides; Scotland; Earth and Environmental Sciences;

    Sammanfattning : A palynostratigraphic investigation of partly ammonite dated, Pliensbachian to Bathonian (Early – Middle Jurassic) strata on the Isles of Skye and Raasay, Inner Hebrides in Northwest Scotland, has recovered a diverse but not always well preserved miospore flora and a less diverse dinoflagellate cysts flora. The studied interval has been subdivided into five biozones, A - E, based on the first occurrence, common occurrence, first common occurrence, and relative abundance of pollen and spore key taxa. LÄS MER

  7. 5. Acoustic Analysis of Loudspeakers Cavity Including Viscothermal Effects

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Byggnadsmekanik

    Författare :Boel Hökmark; [2007]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The geometry of a loud speaker cavity often gets a complicated geometry with sharp corners and narrow ducts. For this kind of shape the internal energy losses caused by viscosity and thermal conduction play an important role in the acoustic behavior. Today there is no method that sufficiently predict these effects. LÄS MER