Sökning: "Magnetiska material"

Visar resultat 1 - 5 av 52 uppsatser innehållade orden Magnetiska material.

  1. 1. A theoretical framework for interpretation and prediction of magneto-optical measurements

    Kandidat-uppsats, Uppsala universitet/Materialteori

    Författare :Viktor Frilén; [2023]
    Nyckelord :moke; tmoke; lmoke; pmoke; magneto-optical effects; layered media; dielectric function; maxwells equations; dielectric tensor; linear respons; magnetism; light induced transistions; DFT; SO;

    Sammanfattning : The interplay of experiments and theory is essential to deepen our understanding of magnetization dynamics. This thesis aims to serve as a bridge between these two aspects by establishing a mathematical framework that enables the computation of optical observable quantities based on theoretical models. LÄS MER

  3. 2. Reducing Power Losses by Optimizing Cooling in Final Annealing of Non-Oriented Electrical Steel

    Master-uppsats, KTH/Materialvetenskap

    Författare :Emil Rosqvist; [2023]
    Nyckelord :;

    Sammanfattning : Surahammars Bruks AB produces non-oriented electrical steel used in several types of motors and generators. Because of recent years exponentially growing market for electrical vehicles, non-oriented electrical steel used in electrical vehicle motors is becoming an increasingly important product. LÄS MER

  4. 3. Datering av vulkanen Rangitoto, Nya Zeeland, genom paleomagnetiska analysmetoder

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Axel Jonsson; [2023]
    Nyckelord :paleomagnetism; naturlig remanent magnetisering; magnetisk inklination; Rangitoto; Earth and Environmental Sciences;

    Sammanfattning : Från Nya Zeeland så har en borrkärna från den största och yngsta vulkanen i Aucklands vulkaniska fält (Auckland volcanic field, AVF) extraherats för att undersöka vulkanfältets förflutna. Detta fält består till största delen av basalt och började bildas för ca 200 000 år sedan och består av ca 50 utdöda vulkaner. LÄS MER

  5. 4. Petrography of impactites from the Dellen impact structure, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Robert Mroczek; [2023]
    Nyckelord :Dellen; Impact; structure; magnetite; apatite; shock waves; shock-metamorphic; features; Impactite; petrography; scanning electron microscope; SEM; geology; Earth and Environmental Sciences;

    Sammanfattning : Identification and characterization of shock-metamorphic features in hypervelocity impact craters is important for our understanding of how shock waves interact with geologic materials and how impact craters form, which in turn is essential to our understanding of what role impact cratering played in the development of our solar system. Of particular interest are accessory minerals like apatite, which contains various volatiles that can affect the atmosphere of a body, or magnetite whose magnetic properties constitute a remote sensing indicator which allows us to study and understand the internal structures of distant bodies. LÄS MER

  7. 5. Quantitative susceptibility mapping of the knee: A comparison of approaches for addressing fatty tissue

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Cornelia Säll; [2023]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Background/purpose Quantitative susceptibility mapping (QSM) is an MRI-based post processing technique to evaluate the magnetic susceptibility, χ, of human tissue using phase data. While brain imaging has been the most common application, other areas have also raised interest. LÄS MER