Sökning: "Isotope"

Visar resultat 21 - 25 av 419 avhandlingar innehållade ordet Isotope.

  1. 21. Fysikaliska undersökningar av isotopspecifika system med hjälp av en elektromagnetisk isotopseparator

    Författare :Tor Noreland; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 22. Origin of Iron Isotope Signatures in Boreal Estuaries

    Författare :Sarah Conrad; Magnus Mörth; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : The geochemistry of iron (Fe) during freshwater transport and estuarine mixing has been investigated. Espescially the changes in the Fe-isotope signature have been studied. The fate of Fe-isotopes during estuarine mixing has been poorly studied. LÄS MER

  4. 23. Isotope enrichment by countercurrent electromigration in molten salts

    Författare :Arnold Lundén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : A series of isotope enrichments by electromigration in molten saltslias been carried out during the last, years. The running conditions aresummarized in table 1 and the enrichments achieved are given intables 2—13. Practical details such as the arrangement of the electricalcircuits and the construction of the separation columns are discussed. LÄS MER

  5. 24. Multilayer neutron optics based on isotope-enriched 11B4C

    Författare :Sjoerd Stendahl; Jens Birch; Fredrik Eriksson; Artur Gregor Glavic; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The work in this thesis covers the design, growth and characterisation of neutron multilayers. The achieved reflectivity performance of a neutron multilayer depends on the achieved optical contrast between the layers as well as the achieved interface width between the layers. LÄS MER

  7. 25. 11C/14C and 18F/19F kinetic isotope effects : methods, measurements and calculations

    Författare :Svante Axelsson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER