Sökning: "weak section"

Visar resultat 16 - 20 av 36 avhandlingar innehållade orden weak section.

  1. 16. High Aspect Ratio Microstructures in Flexible Printed Circuit Boards : Process and Applications

    Författare :Hanna Yousef; Klas Hjort; Mikael Lindeberg; Peter Leisner; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Engineering physics; flexible printed circuit boards; polyimide; through-hole vias; ion track technology; thermoelectricity; thermopiles; substrate integrated waveguides; millimeter wave devices; Teknisk fysik; Engineering physics; Teknisk fysik;

    Sammanfattning : Flexible printed circuit boards (flex PCBs) are used in a wide range of electronic devices today due to their light weight, bendability, extensive wiring possibilities, and low-cost manufacturing techniques. The general trend in the flex PCB industry is further miniaturization alongside increasing functionality per device and reduced costs. LÄS MER

  2. 17. Flexural Buckling of High-Strength Steel Columns

    Författare :Gabriel Sabau; Ove Lagerqvist; Torsten Höglund; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stålbyggnad; Steel Structures;

    Sammanfattning : The European standards dealing with design rules and recommendations for steel structures have been under revision in the past years due to the increased use of high-strength steels. High-strength steels popularity increased at a steady pace in the last decades since they allow for more light-weighted solutions than conventional steels. LÄS MER

  3. 18. Towards application of explicit likelihoods in inference for Dark Matter Direct Detection

    Författare :Pueh-Leng Tan; Jan Conrad; Klas Hultqvist; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Physics; fysik;

    Sammanfattning : Despite the many empirical hints for the existence of Dark Matter in the Universe, Dark Matter has yet to be observed experimentally, be it directly through its scatterings in detectors, indirectly through its annihilation in the galaxy, or implicitly through its production and decay in particle colliders. Even though observations from astrophysics and cosmology placed constraints on the Dark Matter energy density and self-interaction cross section and with Standard Model particles, much about the nature of Dark Matter is still unknown, leaving much to the creativity of model builders. LÄS MER

  4. 19. Processes in Optical Diesel Engines - Emissions Formation and Heat Release

    Författare :Ulf Aronsson; Förbränningsmotorer; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Diesel Engines; Optical Engines; Heat Release; Combustion; Emissions Formation; Mechanical Deformation;

    Sammanfattning : This project deals with questions related to generic diesel combustion research and optically accessible engines are used to study the combustion process. Images of the combustion are analyzed together with in-cylinder pressure and exhaust gas emission measurements. LÄS MER

  5. 20. "Utan bok är det ingen riktig undervisning" : En studie av skolkulturella referensramar i sfi

    Författare :Hans-Olof Gustavsson; Sven Hartman; Ali Osman; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; school cultural frames of reference; Iraqi Kurdistan; SFI; EFL; second language teaching; communicative oriented teaching; social representations; pedagogical code; classification; framing; power distance; knowledge; abilities; learning; diaspora; abduction; intercultural pedagogy; Education; Pedagogik; pedagogik; Education;

    Sammanfattning : Experiences of teachers in SFI, Swedish for (adult) Immigrants, indicate that during their schooling earlier in life, SFI students have developed skills, abilities, values, ideas and expectations about teaching and learning that differ somewhat from the prevailing communicative oriented theory of second language teaching which is emphasized in SFI. In the thesis these aspects are referred to as different school cultural frames of reference. LÄS MER