Sökning: "magnetism"

Visar resultat 1 - 5 av 71 uppsatser innehållade ordet magnetism.

  1. 1. Konstruktion och optimering av en elektromagnetisk massaccelerator


    Författare :Julia Bloom Rolewska; Simon Hamberg; Viktor Lilja; Filip Melberg; Gottfrid Olsson; Anton Stigemyr Hill; [2022-06-15]
    Nyckelord :massaccelerator; spolpistol; magnetism; kraftelektronik; optimering; FEM;

    Sammanfattning : En ny typ av linjär elektromagnetisk massaccelerator (LEMA) har modellerats, konstruerats och testats. Acceleratorn består av en projektil innehållande en permanentmagnet ovanpå en skena med fem par av koppartrådsspolar placerade längs sidorna. LÄS MER

  2. 2. Paleomagnetic and Thermomagnetic Studies on Rock Samples from COSC - 1 Drilling Project

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :Wanyi Li; [2022]
    Nyckelord :Scandinavian Caledonides; remanent magnetization; AF demagnetization; temperature dependent magnetic susceptibility; Skandinaviska Kaledoniderna; remanent magnetism; växelfältsavmagnetisering; temperaturberoende av magnetisk susceptibilitet;

    Sammanfattning : The COSC-1 borehole located in the Lower Seve nappe of the Central Scandinavian Caledonides is intended to study the tectonic evolution of the Paleozoic orogen. The drilling project reached a depth of 2495.8m and obtained samples from different lithologal units of mica schist, amphibolite, gneiss, and mylonitic gneisses. LÄS MER

  3. 3. Adaption of Inertial Confinement Fusion Resultsto Spherical Plasma Expansion at Comets

    Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Författare :Viktor Sparrman; [2022]
    Nyckelord :Plasma; Inertial confinement fusion; comet; plasma expansion; Vlasov-Poisson; integral invariants; ergodicity;

    Sammanfattning : Recent missions to solar system comets, such as ESA's Rosetta mission, raise interest for models and descriptions of their plasma environment. The interaction with various space phenomena such as stellar wind make the construction of an analytical description difficult. LÄS MER

  4. 4. Quantum Landau-Lifshitz-Gilbert Dynamics of a Dimer

    Master-uppsats, Uppsala universitet/Teoretisk fysik; Uppsala universitet/Materialteori

    Författare :Lee Johnson; [2022]
    Nyckelord :;

    Sammanfattning : The classical Landau-Lifshitz-Gilbert (LLG) equations are of crucialimportance in micro-magnetism, but a true quantum-mechanical descriptionwas not found until 2013. However, very few realistic quantumsystems have been modeled using it. LÄS MER

  5. 5. Late Quaternary Climate Reconstruction Using Rock - Magnetism in Loess on Portelet, Jersey

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Elias Hero; [2022]
    Nyckelord :;

    Sammanfattning : Loess is a very fine aeolian sediment that can be used as a proxy for stadial and interstadial glacialperiods. To understand how Earth’s climate have changed and what effects that change have had on theplanet and life on it we can use climate archives. LÄS MER