Search for dissertations about: "magnetic particle"

Showing result 1 - 5 of 173 swedish dissertations containing the words magnetic particle.

  1. 1. Hubble Space Telescope Spectroscopy of Eta Carinae and Chi Lupi

    University dissertation from Atomic Spectroscopy, Department of Physics, Box 118, 221 00 Lund, Sweden

    Author : Torgil Zethson; Lunds universitet.; Lund University.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; magnetic and optical properties; supraconductors; electrical; Rymdteknik; kosmisk kemi; Condensed matter:electronic structure; rymdvetenskap; Astronomi; cosmic chemistry; space research; Astronomy; boron; isotope shifts; Chi Lupi; fluorescence; element abundances; emission lines; GHRS; strontium; STIS; Eta Carinae; spectroscopy; Hubble Space Telescope; supraledare; magnetiska och optiska ; magnetisk resonans; Space technology; spektroskopi; relaxation; magnetic resonance; egenskaper elektriska ; Kondenserade materiens egenskaper:elektronstruktur;

    Abstract : Popular Abstract in Swedish I alla tider har människan förundrats och fascinerats över det stillsamma, men samtidigt spektakulära skådespel, som himlen erbjuder en stjärnklar natt. I tusentals år har vi ställt oss frågan: var någonstans i detta gnistrande myller av stjärnor och planeter, kometer och meteorer, passar vi in? Genom århundradena har vår roll i detta skådespel blivit alltmer undanskuffad. READ MORE

  2. 2. Magnetic Reconnection in Space Plasmas Cluster Spacecraft Observations

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Alessandro Retinò; Uppsala universitet.; [2007]
    Keywords : Space and plasma physics; space physics; plasma astrophysics; plasma physics; transport processes; boundary layers; magnetic reconnection; turbulence; particle acceleration; solar system; magnetospheres; Rymd- och plasmafysik;

    Abstract : Magnetic reconnection is a universal process occurring at boundaries between magnetized plasmas, where changes in the topology of the magnetic field lead to the transport of charged particles across the boundaries and to the conversion of electromagnetic energy into kinetic and thermal energy of the particles. Reconnection occurs in laboratory plasmas, in solar system plasmas and it is considered to play a key role in many other space environments such as magnetized stars and accretion disks around stars and planets under formation. READ MORE

  3. 3. 3D Magnetic Nulls and Regions of Strong Current in the Earth's Magnetosphere

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Elin Eriksson; Uppsala universitet.; Uppsala universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magnetic Nulls; Particle Acceleration; Current sheets; Magnetic reconnection; Magnetosphere; Fysik med inriktning mot rymd- och plasmafysik; Physics with specialization in Space and Plasma Physics;

    Abstract : Plasma, a gas of charged particles exhibiting collective behaviour, can be found everywhere in our vast Universe. The characteristics of plasma in very distant parts of the Universe can be similar to characteristics in our solar system and near-Earth space. READ MORE

  4. 4. Studies of magnetic multi-core nanoparticles for biomedical applications

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Vincent Schaller; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Metropolis algorithm; magnetic bioseparation; Monte Carlo method; Brownian dynamics; magnetic immunoassays; Magnetic multi-core nanoparticles; digital microfluidics; electrowetting-on-dielectric EWOD ;

    Abstract : In recent years, there has been growing interest in using magnetic multi-core nanoparticles in biomedical applications, and particularly in bioseparation and biosensing. In this thesis, two computer simulation techniques have been implemented to study the magnetic response of these particles, and a microfluidic platform has been fabricated to manipulate bio-functionalized magnetic particles in suspension for immunoassays. READ MORE

  5. 5. Interacting Magnetic Nanosystems An Experimental Study Of Superspin Glasses

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Mikael Svante Andersson; Uppsala universitet.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; spin glass; SQUID magnetometry; maghemite; magnetism; nanoparticles;

    Abstract : This thesis presents experimental results on strongly interacting γ-Fe2O3 magnetic nanoparticles and their collective properties. The main findings are that very dense randomly packed (≈60%) γ-Fe2O3 nanoparticles form a replica of a spin glass. READ MORE