Sökning: "löfqvist"

Visar resultat 11 - 15 av 16 avhandlingar innehållade ordet löfqvist.

  1. 11. Projekt som strategi för skolutveckling : - en fjärils färdväg, men ingen dagslända

    Författare :Åsa Löfqvist; Katarina Norberg; Jörgen From; Ulf P. Lundgren; Umeå universitet; []
    Nyckelord :school improvement; school projects; sustainable changes; frame factor model; organisation;

    Sammanfattning : School is an important institution charged with the task of contributing to the economic, cultural and social development of the community, and of nurturing democratic citizens. Countless state-sponsored measures have therefore been initiated in order to affect the quality of schooling. LÄS MER

  3. 12. Towards Automation of Non-Destructive Testing of Welds

    Författare :Patrik Broberg; Mikael Sjödahl; Anna Runnemalm; Torbjörn Löfqvist; Högskolan Väst; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Welding; non-destructive testing; NDT; Industriell arbetsvetenskap; Industrial engineering; Experimental Mechanics;

    Sammanfattning : All welding processes can give rise to defects that will weaken the joint and can lead to failure of the welded structure. Because of this, non-destructive testing (NDT) of welds have become increasingly important to ensure the structural integrity when the material becomes thinner and stronger and welds become smaller; all to reduce weight in order to save material and reduce emissions due to lighter constructions. LÄS MER

  4. 13. Angle Resolved Light Scattering in Turbid Media : Analysis and Applications

    Författare :Magnus Neuman; Per Edström; Torbjörn Löfqvist; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Teknisk fysik;

    Sammanfattning : Light scattering in turbid media is essential for such diverse application areas as paper and print, computer rendering, optical tomography, astrophysics and remote sensing. This thesis investigates angular variations of light reflected from plane-parallel turbid media using both mathematical models and reflectance measurements, and deals with several applications. LÄS MER

  5. 14. Process Intensification through Acoustic and Hydrodynamic Cavitation

    Författare :Taraka Rama Krishna Pamidi; Örjan Johansson; Torbjörn Löfqvist; Giancarlo Cravotto; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultrasonic Cavitation; Hydrodynamic Cavitation; Process Intensification; Cellulose fiber; Tungsten; Refining; Leaching; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : Process industries are cornerstones in today’s industrialized world. They contribute significantly to the development of diverse commodities and materials that are used in our daily lives. Process intensification is an approach implemented to boost manufacturing efficiency and capacities in a more sustainable and energy efficient way. LÄS MER

  7. 15. Modelling and experiments of non-transferred plasma torches

    Författare :Likitha Sai Siddanathi; Lars-Göran Westerberg; Torbjörn Löfqvist; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : Greenhouse gases and their negative effects on climate is one of the most discussed topics around the world. Globally, fossil fuel-related emissions from process industries, transportation, and electricity generation are one of the biggest contributors to greenhouse gases. One of the prime questions asked globally is how to reduce these emissions. LÄS MER