Sökning: "Johan Andersson"

Visar resultat 21 - 25 av 96 avhandlingar innehållade orden Johan Andersson.

  1. 21. The interaction of hydrogen with metallic glass

    Författare :Johan Bylin; Gunnar K. Pálsson; Ralph H. Scheicher; Gabriella Andersson; Astrid Pundt; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; metallic glass; hydrogen; thin film; density functional theory; stochastic quenching; molecular dynamics; x-ray diffraction; pair distribution function; neutron reflectometry; volume expansion; elastic hydrogen-hydrogen interaction; dipole force tensor; electronic structure; optical conductivity; resistivity; optical transmission; x-ray photoelectron spectroscopy; thermodynamic driving force; Gibbs free energy; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Sammanfattning : Combining theoretical ab initio calculations with high-purity thin film sample synthesis and in situ measurements is a compelling way to bridge the gap in our understanding concerning hydrogen in metallic glasses, which is the primary work of this dissertation thesis. The main emphasis has been on how hydrogen affects the structure of metallic glasses, and how those changes influence not only the electronic properties of the amorphous metals but also their thermal stability. LÄS MER

  3. 22. Access selection in multi-system architectures : cooperative and competitive contexts

    Författare :Johan Hultell; Jens Andersson; Heikki Hämmäinen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

    Sammanfattning : Future wireless networks will be composed of multiple radio access technologies (RATs). To benefit from these, users must utilize the appropriate RAT, and access points (APs). In this thesis we evaluate the efficiency of selection criteria that, in addition to path-loss and system bandwidth, also consider load. LÄS MER

  4. 23. Conspectus vegetationis Lapponiae quem ... p.p. Nicolaus Johannes Anderson phil. mag. stip. Hellvik et Oscar. Esbj. Edholm Norrland ... d. XXX Maji MDCCCXVI ... Pars II

    Författare :Nils Johan Andersson; Oscar Esbjörn Edholm; Uppsala universitet; []
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    Sammanfattning : .... LÄS MER

  5. 24. Conspectus vegetationis Lapponiae quem ... p.p. Nicolaus Johannes Anderson phil. mag. stip. Hellvik et Theodor. Isac. Suber Ostrogothi ... d. XXVII Maji MDCCCXVI ... Pars I

    Författare :Nils Johan Andersson; Theodor Isac Suber; Uppsala universitet; []
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    Sammanfattning : .... LÄS MER

  7. 25. Salices Lapponiæ quarum descriptiones ... p.p. Nicolaus Johannes Anderson phil. mag. stip. Hellvik et Alfred. August.. Wong Ostrogothi ... die III Decemb. MDCCCXLV ... Pars I

    Författare :Nils Johan Andersson; Alfred August Wong; Uppsala universitet; []
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    Sammanfattning : .... LÄS MER