Sökning: "Research 2000"

Visar resultat 16 - 20 av 1035 avhandlingar innehållade orden Research 2000.

  1. 16. An exerimental study of the flow in a sharp-heel draft tube

    Författare :Urban Andersson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : The goal of the Turbine 99 Draft Tube experiments is to provide extensive experimental data on a well-defined sharp-heel draft-tube flow. The data bank has served as calibration data for the simulation challenge presented by the Turbine 99 workshop in Porjus in June 1999. LÄS MER

  3. 17. "Du berga livet på kar`n" : mellom-menneskelige relasjoner mellom lærer og elev i dagens skole

    Författare :Jan-Birger Johansen; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Pedagogik; Education;

    Sammanfattning : The research focuses on the value of the teacher´s competence for students with deficiency of motivation for learning and development. A teacher’s socio-emotional competence may give these students energy to seize their own future and contribute to positive personal development for themselves. LÄS MER

  4. 18. Using soft systems methodology as a methodology for multi-modal systems design

    Författare :Birgitta Bergvall-Kåreborn; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Informatik; Informatics;

    Sammanfattning : The aim of this research is to contribute to the field of systems design by developing intellectual tools that can help designers to conceptualise, create and evaluate different design alternatives. In this work I focus my attention on Soft Systems Methodology. LÄS MER

  5. 19. Hilbert space frames and bases : a comparison of Gabor and wavelet frames and applications to multicarrier digital communications

    Författare :Niklas Grip; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik;

    Sammanfattning : Several signal processing applications today are based on the use of different transforms. The signals under consideration are written as a linear combination (or series) of some predefined set of functions. Traditionally, orthogonal bases have been used for this purpose, for example, in the discrete Fourier transform. LÄS MER

  7. 20. Fiber push-out testing of sapphire fiber alumina matrix composites

    Författare :David Le Pagne; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material Mechanics; Materialmekanik;

    Sammanfattning : A current area of international research and development concerns composite materials consisting of oxides reinforced with continuous oxide fibers. These materials have an inherent resistance to oxidation and therefore have potential as structural materials for applications at extremely high temperatures. LÄS MER