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  • 751.
    Östberg, Gustaf
    et al.
    Chalmers University of Technology, Gothenburg.
    Yucelen, Emrah
    FEI Company, Eindhoven, Netherlands.
    Svensson, Krister
    Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering.
    Olsson, Eva
    Chalmers University of Technology, Gothenburg.
    In-Situ TEM Characterization of the Effect of Interfaces on Charge Transport in Cu (In, Ga) Se2 Thin Film Solar Cells2009In: Microscopy and Microanalysis, ISSN 1431-9276, 1435-8115, Vol. 15, p. 712-713Article in journal (Refereed)
  • 752.
    Österdahl, Emma
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Educational Studies (from 2013).
    Barns utforskande av fysikaliska fenomen på kullar: En design-baserad studie om barns utforskande av friktion.2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of the study is to provide knowledge about how children explore, understand and reason about the physical phenomenon of friction. This study have been based on the younger children’s exploring. The method of the study has been observation in order to get as close to the environment that’s being investigated and to bring attention to the younger children’s actions. A nonparticipating observation was also used for the observer to influence the children as little as possible. The observations that have been made have taken place over two days and have been video recorded to ensure documentation of children's reasoning, body language and actions. The result shows how the children focused on overcoming the friction to get an object to slide instead of getting stuck. The participants’ interaction also emerged in the result as central to driving the exploration further. The conclusions drawn after the study is that the result can be linked to the preschool’s curriculum, which addresses the fact that the children should be given the opportunity to explore, discuss and develop understanding of physical phenomena. The study has also highlighted that hills can be used as a tool for teaching and exploring the phenomenon of friction.

  • 753.
    Östersjö, Victor
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.
    Supersymmetry for the Hydrogen Atom2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this thesis it will be shown that the hydrogen atom has a SU(2) × SU(2) symmetry generated by the quantum mechanical angular momentum and Runge-Lenz vector operators. Additionally, the hydrogenic atom will be studied with supersymmetric methods to identify a supersymmetry that relates different such systems. This thesis is intended to present the material in a manner accessible to people without background in Lie groups and supersymmetry, as well as fill in some calculations between steps that are not spelt out in the litterature.

13141516 751 - 753 of 753
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