Sökning: "method"

Visar resultat 11 - 15 av 17284 avhandlingar innehållade ordet method.

  1. 11. Microstructural manipulation by laser irradiation of prepared samples : The ’Snapshot Method’

    Författare :Stephanie Robertson; Alexander F.H. Kaplan; Fredrik Sikström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Produktionsutveckling; Manufacturing Systems Engineering;

    Sammanfattning : Various metallurgical microstructures and their formation are studied in this thesis by using a laser beam to melt a variety of materials with different chemical compositions over a range of thermal cycles. The laser beam was used conventionally in a narrow gap multi-layer weld, used for welding large depths with filler wire additions, as well as a non-traditional simulated welding approach labelled here as the Snapshot method. LÄS MER

  3. 12. The ORC method

    Författare :Jan Akander; KTH; []
    Nyckelord :;

    Sammanfattning : The ORC Method (Optimised RC-networks) provides a means ofmodelling one- or multidimensional heat transfer in buildingcomponents, in this context within building simulationenvironments. The methodology is shown, primarily applied toheat transfer in multilayer building components. LÄS MER

  4. 13. Air Gap Method : Air-Gaps in Building Construction to avoid Dampness & Mould

    Författare :Tord af Klintberg; Folke Björk; Kjartan Gudmundsson; Jesper Arfvidsson; KTH; []
    Nyckelord :humidity; air gaps; water damage; convection; building; construction;

    Sammanfattning : .... LÄS MER

  5. 14. Potential Flow Panel Methods for the Calculation of Free-surface Flows with Lift

    Författare :Carl-Erik Janson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; desingularized; shape optimization; Rankine source; waves; OCTOPUS; dipole; MMA; Dawson operator; boundary layer; vortex; Method of Moving Asymptotes; nonlinear; sailing yacht; four point operator; surface piercing wing; Navier-Stokes; numerical method; lift force; raised panel method; discrete Fourier transform; collocation point shift; potential flow; CFD; free surface; induced drag; SHIPFLOW; dispersion; damping; analytical method; hydrofoil;

    Sammanfattning : Two non-linear Rankine-source panel methods are developed and implemented in the same computer code. The first method uses a four-point upwind operator on the free-surface to compute the velocity derivatives and to enforce the radiation condition while the second method uses an analytical expression for the velocity derivatives and a collocation point shift one panel upstream to prevent upstream waves. LÄS MER

  7. 15. A generic security evaluation method for open distributed systems

    Författare :Ann Frisinger; KTH; []
    Nyckelord :information security; security evaluation; risk analysis; method; ipen distributed system; virtual system; networked education; X-ify; NED-ify;

    Sammanfattning : Security is an important attribute of any informationsystem. Whether your business is small or large you have to beable to set the desired security levels for your system. Anon-decided or non-fulfilled security level target can easilyend up in unplanned costs. LÄS MER