Sökning: "iron isotopes"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden iron isotopes.

  1. 1. Rituelle og hverdagslige hester: En komparativ stabil isotop studie av hestene fra våtmarken Bokaren og Gamla Uppsala

    Master-uppsats, Stockholms universitet/Institutionen för arkeologi och antikens kultur

    Författare :Røsseng Eline; [2021]
    Nyckelord :Horses; ritual; everyday; wetland; stable isotopes; diet; mobility; life history; teeth; husbandry practices; Gamla Uppsala; Bokaren;

    Sammanfattning : The aim of this thesis is to expand the understanding of horses from ritual and everyday contexts, respectively, by investigating their diet and mobility. In this thesis, teeth of domestic horse Equus ferus caballus from the wetland Bokaren and central place Gamla Uppsala in Uppland during the late Iron Age (550-1050 A.D) are analyzed. LÄS MER

  3. 2. Exploring the application of neural networks in predictions of nuclear binding energies

    Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Martin Waites; [2020]
    Nyckelord :neural networks; drip-line; nuclear physics; binding energy; exotic nuclei; Hartree-Fock-Bogolyubov; Physics and Astronomy;

    Sammanfattning : In this project the locations of the proton and neutron drip-lines are predicted using neural networks and theoretical data obtained by applying the HFBTHO program. For each of the neural networks a comparison is made between neural network predictions and experimental data in the region experimental data exists. LÄS MER

  4. 3. Iron and Oxygen Isotope Signatures of Magnetite in Iron Ore of Kiruna Type

    Master-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonik

    Författare :Malin Andersson; [2020]
    Nyckelord :IOA-deposits; magnetite; SIMS; EBSD; Fe- and O isotopes; laser fluorination;

    Sammanfattning : Stable isotope analysis of iron and oxygen isotopes in magnetite of Kiruna-type from Sweden and Chile have been conducted to further the understanding of the formation, and advance the analysis methods of these deposits. For this, data from SIMS (secondary ion mass spectroscopy), EBSD (electron backscatter diffraction) and triple oxygen analysis (by laser fluorination) are used. LÄS MER

  5. 4. Osteological Markers of Nutritional Stress on the Swedish Island of Öland: Physiological Effects of Environmental Fluctuations during the Scandinavian Iron Age

    Master-uppsats, Lunds universitet/Arkeologi

    Författare :Claire Maeve Callahan; [2020]
    Nyckelord :Old World Drought Atlas; Dendroclimatology; Nutrition; Osteology; Multiple Correspondence Analysis; Skeletal Pathology; Dietary Isotopes; Environmental Reconstructions; Historic Climate; Iron Age; Sweden; Baltic Region; History and Archaeology;

    Sammanfattning : The shift to agriculture as the main form of subsistence practice allowed past peoples the freedom and potential to exploit their natural and man-made environment for personal and societal gain. Decades of archaeological excavations conducted on the Swedish island of Öland have amassed a wealth of information regarding the subsistence and settlement patterns of Iron Age societies. LÄS MER

  7. 5. Avskiljning av naturligt organiskt material vid konstgjord grundvattenbildning i Uppsalaåsen

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Oskar Johansson; [2015]
    Nyckelord :natural organic matter; NOM; artificial groundwater recharge; basin infiltration; TOC; DOC; absorbance; fluorescence; stable isotopes; naturligt organiskt material; NOM; konstgjord grundvattenbildning; bassänginfiltration; TOC; DOC; UV-absorbans; fluorescens; stabila isotoper;

    Sammanfattning : Uppsalas dricksvattenförsörjning baseras på konstgjord grundvattenbildning som innebär att vatten från Fyrisån får rinna ned till grundvattnet från infiltrationsbassänger. Detta examensarbete syftar till att undersöka vad som händer med naturligt organiskt material (NOM) i Uppsalaåsen vid konstgjord grundvattenbildning. LÄS MER