Sökning: "magnetiska fält"
Visar resultat 1 - 5 av 29 uppsatser innehållade orden magnetiska fält.
1. Datering av vulkanen Rangitoto, Nya Zeeland, genom paleomagnetiska analysmetoder
Kandidat-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : 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
2. Statistics of Electric and Magnetic Fields at the Earth’s Bow Shock
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : The interaction between the solar wind and Earth’s magnetic field creates the Earth’s bow shock. It is an ideal region for space probes like MMS, THEMIS or Clusters to study the collisionless shock phenomenon in space plasma. LÄS MER
3. Quantitative susceptibility mapping of the knee: A comparison of approaches for addressing fatty tissue
Master-uppsats, Lunds universitet/SjukhusfysikerutbildningenSammanfattning : 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
4. Classical motion in synthetic monopole fields
Kandidat-uppsats, Uppsala universitet/MaterialteoriSammanfattning : In the Born-Oppenheimer approximation for a quantum system the emergent synthetic magnetic field can be seen as generated by monopoles at points of degeneracy, in full analogue to the synthetic fields generating the geometric phase of adiabatically evolving quantum systems. The plausibility of using these synthetic magnetic monopoles as a means to study magnetic monopole dynamics in the absence of fundamental magnetic monopoles has been explored. LÄS MER
5. Differences between solar atlases and implications on the solar oxygen abundance
Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomiSammanfattning : The determination of the solar oxygen abundance is a topic that has long beenunder debate, where the exact value has varied between researchers. These variationsin the oxygen abundance have implications on our understanding of the Sun and itsinterior as well as our understanding of other stars. LÄS MER