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1

Schumacher, Kristopher Ray. "Direct numerical simulation of ferrofluid turbulence in magnetic fields /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/9892.

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2

Andreu, Segura Jordi. "Statistical Mechanics of Superparamagnetic Colloidal Dispersions Under Magnetic Fields." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/113485.

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Les dispersions col·loïdals, un terme encunyat pel científic escocès Thomas Graham el 1861, han estat objecte d’interès en diferents àrees científiques durant més d'un segle. Una dispersió col·loïdal es caracteritza per l’existència d'una fase dispersa uniformement distribuïda dins un medi dispersiu. Diferents compostos entren dins aquesta categoria, com els aerosols (fum, boira, núvols o pols), les escumes, les emulsions (maionesa o llet) o els gels (mantega o melmelada). Les millores recents en la síntesi de partícules i l'estabilitat col·loïdal han impulsat la millora en el disseny de nous
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3

Ueda, Hiroyuki. "Studies on low-field functional MRI to detect tiny neural magnetic fields." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263666.

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付記する学位プログラム名: 京都大学卓越大学院プログラム「先端光・電子デバイス創成学」<br>京都大学<br>新制・課程博士<br>博士(工学)<br>甲第23205号<br>工博第4849号<br>京都大学大学院工学研究科電気工学専攻<br>(主査)教授 小林 哲生, 教授 松尾 哲司, 特定教授 中村 武恒<br>学位規則第4条第1項該当<br>Doctor of Philosophy (Engineering)<br>Kyoto University<br>DFAM
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4

Cook, Graeme Robert. "Magnetic flux transport simulations : applications to solar and stellar magnetic fields." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2072.

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Magnetic fields play a key role in a wide variety of phenomena found on the Sun. One such phenomena is the Coronal Mass Ejection (CME) where a large amount of material is ejected from the Sun. CME’s may directly affect the earth, therefore understanding their origin is of key importance for space weather and the near-Earth environment. In this thesis, the nature and evolution of solar magnetic fields is considered through a combination of Magnetic Flux Transport Simulations and Potential Field Source Surface Models. The Magnetic Flux Transport Simulations produce a realistic description of the
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5

Cui, Han. "Modeling, Implementation, and Simulation of Two-Winding Plate Inductor." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78301.

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Design of magnetic component is a key factor in achieving high frequency, high power-density converters. Planar magnetics are widely used in bias power supplies for the benefits of low profile and their compatibility with printed-circuit boards (PCB). The coupled inductors with winding layers sandwiched between two core plates are studied in this dissertation in order to model the self-inductance, winding loss, and core loss. The most challenging task for the plate-core inductor is to model the magnetic field with finite core dimensions, very non-uniform flux pattern, and large fringing flux
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6

Younas, Irfan. "Simulations of magnetic properties of short superconducting cylinders and coils." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242102.

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7

Sturrock, Zoe. "Numerical simulations of sunspot rotation driven by magnetic flux emergence." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/10129.

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Magnetic flux continually emerges from the Sun, rising through the solar interior, emerging at the photosphere in the form of sunspots and expanding into the atmosphere. Observations of sunspot rotations have been reported for over a century and are often accompanied by solar eruptions and flaring activity. In this thesis, we present 3D numerical simulations of the emergence of twisted flux tubes from the uppermost layers of the solar interior, examining the rotational movements of sunspots in the photospheric plane. The basic experiment introduces the mechanism and characteristics of sunspot
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8

Geng, Annette Monika [Verfasser]. "Numerical Simulations of Magnetic Fields in Interacting Galaxies / Annette Monika Geng." München : Verlag Dr. Hut, 2013. http://d-nb.info/1031845003/34.

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9

Flaux, Pierrick. "Measurement of the neutron electric dipole moment at the Paul Scherrer Institute : production of magnetic fields." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC222/document.

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Анотація:
Le travail réalisé au cours de cette thèse concerne le développement du système de bobines de l'expérience n2EDM à l'Institut Paul Sherrer (PSI). Le but de cette expérience est de mettre en évidence de nouvelles sources de violation CP à travers la mesure du moment dipolaire électrique du neutron. L'actuelle limite supérieure sur la mesure de nEDM, $2.9 \cross 10^{-26}$ e.cm (90\% C.L.) à été obtenue par la collaboration RAL-Sussex-ILL en 2006.L'expérience n2EDM vise à améliorer d'un ordre de grandeur la sensibilité statistique en gardant sous contrôle les effets systématiques. Cela requiert l
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10

Jocher, Agnès. "Control of soot formation in laminar flames by magnetic fields and acoustic waves." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066043.

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Cette thèse consiste en l'étude expérimentale et numérique des processus de formation des particules de suie au sein des flammes laminaires non-pré-mélangées et partiellement prémélangées sous l'influence d'un champ magnétique ou d'une stimulation acoustique. Dans une premiére étape, la capacité du code CIAO à prédire la fraction volumique de suie dans une flamme axisymétrique est étudiée. Par la suite, deux flammes subissant une stimulation acoustique ont été étudiées. Les résultats peuvent être utilisés pour améliorer les modèles de suie futurs, en particulier concernant les différentes éche
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11

Arth, Alexander [Verfasser], and Harald [Akademischer Betreuer] Lesch. "Simulating magnetic fields in galaxy clusters / Alexander Arth ; Betreuer: Harald Lesch." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/115950685X/34.

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12

O'Hara, Jennifer. "Numerical simulations of footpoint driven coronal heating." Thesis, University of St Andrews, 2016. http://hdl.handle.net/10023/8871.

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Анотація:
Magnetic field permeates the solar atmosphere and plays a crucial role in the dynamics, energetics and structures observed. In particular, magnetic flux tubes provide the structure for coronal loops that extend from the solar surface into the corona. In this thesis, we present 3D numerical simulations examining the heating produced by reconnection between flux tubes driven by rotational footpoint motions. The basic model consists of two, initially aligned, flux tubes that are forced to interact by rotational driving velocities on the flux concentrations on the boundaries. A single, twisted cur
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13

Jocher, Agnès. "Control of soot formation in laminar flames by magnetic fields and acoustic waves." Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066043.

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Анотація:
Cette thèse consiste en l'étude expérimentale et numérique des processus de formation des particules de suie au sein des flammes laminaires non-pré-mélangées et partiellement prémélangées sous l'influence d'un champ magnétique ou d'une stimulation acoustique. Dans une premiére étape, la capacité du code CIAO à prédire la fraction volumique de suie dans une flamme axisymétrique est étudiée. Par la suite, deux flammes subissant une stimulation acoustique ont été étudiées. Les résultats peuvent être utilisés pour améliorer les modèles de suie futurs, en particulier concernant les différentes éche
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14

Yigitler, Huseyin. "Permanent Magnet Design And Image Reconstruction Algorithm For Magnetic Resonance Imaging In Inhomogeneous Magnetic Fields." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607627/index.pdf.

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Recently, the use of permanent magnets as magnetic field sources in biomedical applications has become widespread. However, usage of permanent magnets in magnetic resonance imaging (MRI) is limited due to their inhomogeneous magnetic field distributions. In this thesis, shape and geometry optimization of a magnet is performed. Moreover, placement of more than one magnet is optimized to obtain desired magnetic field distribution in specific region of space. However, obtained magnetic field distribution can not be used in the conventional MRI image reconstruction techniques. Consequently, an ima
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15

Yarimpabuc, Durmus. "Numerical Simulation Of Thermal Convection Under The Influence Of A Magnetic Field By Using Solenoidal Bases." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613393/index.pdf.

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The effect of an imposed magnetic field on the thermal convection between rigid plates heated from below under the influence of gravity is numerically simulated in a computational domain with periodic horizontal extent. The numerical technique is based on solenoidal basis functions satisfying the boundary conditions for both velocity and induced magnetic field. The expansion bases for the thermal field are also constructed to satisfy the boundary conditions. The governing partial differential equations are reduced to a system of ordinary differential equations governing the time evolution of t
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16

Huo, Suguo. "Micromagnetic simulation and MFM study of micromagnetic structures in ferromagnetic materials." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287631.

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17

Kubrak, Volker. "Transport of two-dimensional electrons through magnetic barriers." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364636.

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18

Murray, Michelle J. "Solar flux emergence : a three-dimensional numerical study." Thesis, University of St Andrews, 2008. http://hdl.handle.net/10023/441.

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Анотація:
Flux is continually emerging on the Sun, making its way from the solar interior up into the atmosphere. Emergence occurs on small-scales in the quiet Sun where magnetic fragments emerge, interact and cancel and on large-scales in active regions where magnetic fields emerge and concentrate to form sunspots. This thesis has been concerned with the large-scale emergence process and in particular the results from previous solar flux emergence modelling endeavours. Modelling uses numerical methods to evolve a domain representing simplified layers of the Sun’s atmosphere, within which the subsurface
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19

Wagner, Timothy A. (Timothy Andrew) 1974. "Field distributions within the human cortex induced by transcranial magnetic simulation." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86789.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (leaves 120-125).<br>by Timothy A. Wagner.<br>S.M.
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20

PERIGO, ELIO A. "Desenvolvimento de um focalizador magnético utilizando um arranjo periódico de ímãs permanentes para aplicaçãao em dispositivos de microondas de potência." reponame:Repositório Institucional do IPEN, 2005. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11338.

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Made available in DSpace on 2014-10-09T12:50:50Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:24Z (GMT). No. of bitstreams: 1 11097.pdf: 8468953 bytes, checksum: 884442a7a2e945eacad452d3697f2149 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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21

Sandlund, Erik. "Modelling the Magnetic Influence of a Jet Aircraft : A study on the magnetic interference of an aircraft configuration and its effect on a magnetometer." Thesis, Linköpings universitet, Teoretisk Fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-157743.

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Aircraft have been used for the detection of submarines since World War II. The basic concept is to attach a sensor to the back of an aircraft. Since the aircraft is a moving metallic object, it is bound to generate a great deal of interference. Because of this, mathematical models and software have been developed to help filter out this interference and thus make the detection of the submarine easier. Normally, the engines of the aircraft are placed on the wings, quite far away from the sensor. However, for a maritime patrol system in development, the jet engines are placed at the rear of the
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22

Schwarm, Fritz-Walter [Verfasser], Jörn [Gutachter] Wilms, and Peter A. [Gutachter] Becker. "Monte Carlo Simulation of Cyclotron Lines in Strong Magnetic Fields - Theory and Application / Fritz-Walter Schwarm ; Gutachter: Jörn Wilms, Peter A. Becker." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2017. http://d-nb.info/1134953453/34.

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23

Schwarm, Fritz-Walter Verfasser], Jörn [Gutachter] [Wilms, and Peter A. [Gutachter] Becker. "Monte Carlo Simulation of Cyclotron Lines in Strong Magnetic Fields - Theory and Application / Fritz-Walter Schwarm ; Gutachter: Jörn Wilms, Peter A. Becker." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2017. http://d-nb.info/1134953453/34.

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24

Lima, Reinaldo Santos de. "Numerical studies of diffusion and amplification of magnetic fields in turbulent astrophysical plasmas." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/14/14131/tde-18072013-161020/.

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In this thesis we investigated two major issues in astrophysical flows: the transport of magnetic fields in highly conducting fluids in the presence of turbulence, and the turbulence evolution and turbulent dynamo amplification of magnetic fields in collisionless plasmas. The first topic was explored in the context of star-formation, where two intriguing problems are highly debated: the requirement of magnetic flux diffusion during the gravitational collapse of molecular clouds in order to explain the observed magnetic field intensities in protostars (the so called \"magnetic flux prob
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25

Ozcan, Sinan. "Simulation of field controllable fluids with suspended ferrous particles in micro tubes." abstract and full text PDF (free order & download UNR users only), 2005. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1433348.

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26

Dadzis, Kaspars. "Modeling of directional solidification of multicrystalline silicon in a traveling magnetic field." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-117492.

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Melt flow plays an important role in directional solidification of multicrystalline silicon influencing the temperature field and the crystallization interface as well as the transport of impurities. This work investigates the potential of a traveling magnetic field (TMF) for an active control of the melt flow. A system of 3D numerical models was developed and adapted based on open-source software for calculations of Lorentz force, melt flow, and related phenomena. Isothermal and non-isothermal model experiments with a square GaInSn melt were used to validate the numerical models by direct vel
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27

NASSERI, SEYED ALI. "Magnetic Domain Wall Motion: Numerical Simulation and Collective Coordinate Modeling." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2710713.

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Manipulating magnetic domain walls in nanostructures has been linked with applications in spintronic logic, sensing and storage devices. Recent studies of domain wall motion have focused on perpendicular magnetic anisotropy heterostructures of ultrathin ferromagnets sandwiched between a heavy metal layer and an oxide, in which spin-orbit coupling and broken inversion symmetry can dominate domain wall motion. Specifically, chiral domain walls are stabilized in these systems due to the Dzyaloshinskii-Moriya interaction, and current-driven domain wall motion is enhanced due to the spin Hall eff
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28

Parreiras, Sofia de Oliveira. "Vórtices magnéticos em materiais nanoestruturados: experimento e simulação." CNEN - Centro de Desenvolvimento da Tecnologia Nuclear, Belo Horizonte, 2012. http://www.bdtd.cdtn.br//tde_busca/arquivo.php?codArquivo=209.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>O estudo de discos magnéticos com a configuração de vórtices magnéticos tem atraído grande interesse científico recentemente. Nessa estrutura os spins formam circuitos fechados no plano e, próximo ao centro do disco, se alinham perpendicularmente ao plano de forma a reduzir a densidade de energia de troca. O grande potencial de aplicação de vórtices magnéticos como, por exemplo, em memórias magnéticas e nanopartículas para o tratamento de câncer, chama a atenção para a investigação das condições de estabilidade e o controle de suas
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29

Jiang, Yuxiang. "A Unipolar Pulse Electromagnetic Field Apparatus for Magnetic Therapy: Design, Simulation and Development." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37854.

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As a magnetic therapy apparatus with medical benefits, the Unipolar Pulse Electromagnetic Field (UPEMF) apparatus is presented to produce unipolar pulsed magnetic waveforms with an intensity, shape, and frequency that meet medical requirements. The unipolar pulse is the most significant advantage, as the implemented apparatus is considered to be the first improvement in Pulse Electromagnetic Fields (PEMFs). The magnetic field is generated by a specially designed electromagnetic unit. In this unit, an electromagnet is concentrated by a designed concentrator to strengthen the magnetic field at t
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30

López, Ochoa Alexander Richard. "Investigations and simulations of magneto elastomer materials (MSE) influenced by static magnetic fields for soft robotics applications." Master's thesis, Pontificia Universidad Católica del Perú, 2019. http://hdl.handle.net/20.500.12404/15457.

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Magneto-sensitive Elastomere sind Verbundwerkstoffe, die hauptsächlich aus einer Elastomermatrix bestehen, in der magnetischen Partikeln dispergiert sind. Ein ins magnetosensitive Elastomer eingreifende Magnetfeld bewirkt Änderungen der Eigenschaften dieses Materials. Diese Qualität macht die MSE zu einer Option mit hohem Potenzial für Soft Robotics- Anwendungen. Für die Realisierung dieser Masterarbeit wurden MSE-Proben aus einer Elastomermatrix, Silikonöl und Carbonyleisenpartikeln hergestellt. Tests wurden durchgeführt, um Verbesserungen zu entwickeln, die sich auf Soft-Robot- Anwendungen
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31

Hurtig, Tomas. "Plasma cloud penetration across magnetic boundaries." Doctoral thesis, KTH, Alfvén Laboratory, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3804.

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32

Mitma, Pillaca Elver Juan de Dios [UNESP]. "Estudo do comportamento magnético de plasma durante o processo de implantação iônica por imersão em plasma." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/91826.

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Made available in DSpace on 2014-06-11T19:25:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-05Bitstream added on 2014-06-13T19:53:18Z : No. of bitstreams: 1 mitmapillaca_ejd_me_guara.pdf: 802438 bytes, checksum: be2c83ec017ba3f36efb9e9da538c9e6 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Universidade Estadual Paulista (UNESP)<br>O estudo do efeito do campo magnético sobre o processo de implantação iônica por imersão em plasma (3IP) é de grande interesse para o tratamento de materiais. Sendo 3IP uma técnica relativamente nova e de grande relevânc
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33

Boulware, Jeffrey C. "Experiment and Simulation on the Dynamics of a Slug of Liquid Oxygen Displaced by a Pulsed Magnetic Field." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/690.

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A magnetic fluid system could potentially replace mechanically moving parts in a satellite as a means of increasing system reliability and mission lifetime, but rather than a standard ferrofluid with magnetic particles, liquid oxygen (LOX) may be a more adequate working fluid. As a pure paramagnetic cryogen, LOX is already heavily used in space, but still requires basic research before being integrated into system development. The objectives of the research conducted were to verify LOX as a magnetic working fluid through experiment and establish a theoretical model to describe its behavior. Th
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34

Barnes, Gary James. "Computational modelling for type-II superconductivity and the investigation of high temperature superconducting electrical machines." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365887.

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35

Sriskantha, Hari Haran. "Pseudo-Newtonian simulations of black hole-neutron star mergers as possible progenitors of short-duration gamma-ray bursts." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9651.

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Black hole-neutron star (BH-NS) mergers are promising candidates for the progenitors of short-duration gamma-ray bursts (GRBs). With the right initial conditions, the neutron star becomes tidally disrupted, eventually forming a dense, accreting disk around the black hole. The thermal energy of this black hole-disk system can be extracted via neutrino processes, while the spin energy of the black hole can be extracted via magnetic processes. Either (or even a combination of these) processes could feasibly power a relativistic jet with energy ≥~ 10 49 erg and duration ≤~ 2 s, hence producing a s
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36

Weeber, Rudolf [Verfasser], and Christian [Akademischer Betreuer] Holm. "Simulation of novel magnetic materials in the field of soft matter / Rudolf Weeber. Betreuer: Christian Holm." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2015. http://d-nb.info/106664585X/34.

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37

Viré, Axelle. "Study of the dynamics of conductive fluids in the presence of localised magnetic fields: application to the Lorentz force flowmeter." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210062.

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When an electrically conducting fluid moves through a magnetic field, fluid mechanics and electromagnetism are coupled.<p>This interaction is the object of magnetohydrodynamics, a discipline which covers a wide range of applications, from electromagnetic processing to plasma- and astro-physics.<p><p>In this dissertation, the attention is restricted to turbulent liquid metal flows, typically encountered in steel and aluminium industries. Velocity measurements in such flows are extremely challenging because liquid metals are opaque, hot and often corrosive. Therefore, non-intrusive measurement d
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38

LANZAROTTO, DAMIANO. "STATIC MAGNETIC FIELD IMPACT ON SEMICONDUCTOR DEVICES AND CENTRIFUGAL PUMPS AT ITER." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1049208.

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An astounding number of components belonging to subsystems of different nature are installed in the ITER Tokamak building and all of those subjected to a constant or slowly variable magnetic field, an environmental condition unusual for other standard applications. Indeed, the magnetic field generated by ITER magnets can reach 70 mT in the crane hall of the Tokamak building, with a maximum derivative of 10 mT/s. Among these components, there are a few which are critical in the correct operation of the overall system and on which extremely few data are available regarding their interaction wi
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39

Guo, Fan. "Effects of Turbulent Magnetic Fields on the Transport and Acceleration of Energetic Charged Particles: Numerical Simulations with Application to Heliospheric Physics." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/255156.

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Turbulent magnetic fields are ubiquitous in space physics and astrophysics. The influence of magnetic turbulence on the motions of charged particles contains the essential physics of the transport and acceleration of energetic charged particles in the heliosphere, which is to be explored in this thesis. After a brief introduction on the energetic charged particles and magnetic fields in the heliosphere, the rest of this dissertation focuses on three specific topics: 1. the transport of energetic charged particles in the inner heliosphere, 2. the acceleration of ions at collisionless shocks, an
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40

Nam, Moon-Sun. "Magnetotransport in BEDT-TTF salts." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342589.

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41

Mitma, Pillaca Elver Juan de Dios. "Estudo do comportamento magnético de plasma durante o processo de implantação iônica por imersão em plasma /." Guaratinguetá : [s.n.], 2007. http://hdl.handle.net/11449/91826.

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Orientador: Konstantin Georgiev Kostov<br>Banca: Joaquim José Barroso de Castro<br>Banca: Mario Ueda<br>Resumo: O estudo do efeito do campo magnético sobre o processo de implantação iônica por imersão em plasma (3IP) é de grande interesse para o tratamento de materiais. Sendo 3IP uma técnica relativamente nova e de grande relevância para diversas aplicações tecnológicas é importante que ela seja pesquisada e analisada detalhadamente. A aplicação de um campo magnético estático, transversal em relação ao campo elétrico formado durante este processo produz um sistema de campos cruzados ExB. Este
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42

Harrison, Michael George. "Equilibrium and dynamics of collisionless current sheets." Thesis, St Andrews, 2009. http://hdl.handle.net/10023/705.

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43

Gupta, Aditya. "SIGNAL PROCESSING OF AN ECG SIGNAL IN THE PRESENCE OF A STRONG STATIC MAGNETIC FIELD." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2206.

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This dissertation addresses the problem of elevation of the T wave of an electrocardiogram (ECG) signal in the magnetic resonance imaging (MRI). In the MRI, due to the strong static magnetic field the interaction of the blood flow with this strong magnetic field induces a voltage in the body. This voltage appears as a superimposition at the locus of the T wave of the ECG signal. This looses important information required by the doctors to interpret the ST segment of the ECG and detect diseases such as myocardial infarction. This dissertation aims at finding a solution to the problem of elevati
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44

Zelda, Jan. "Generátor pro leteckou aplikaci HUMS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254451.

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Presented diploma thesis deals with development of the autonomous electric energy source for Health and Usage Monitoring Systems placed at the rear part of a helicopter. Firstly, the HUMS systems were described briefly and the research of available energy sources was made after that. After that, the magnetic properties of the materials were described with the special focus on the permanent magnets. The draft also includes the creation of model of the magnetic field using the final element method. Prototype was assembled and the other design solutions were evaluated. The evaluation of various d
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45

Vilppola, J. H. (Jari Heikki). "Solar wind:detection methods and long-term fluctuations." Doctoral thesis, Oulun yliopisto, 2003. http://urn.fi/urn:isbn:9514271955.

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Abstract The Cassini/Huygens mission is a collaborative mission of NASA and ESA to study the Saturnian system. Cassini Plasma Spectrometer (CAPS)is one of the scientific investigations onboard the Cassini orbiter. It consists of three separate spectrometers: Electron Spectrometer (ELS), Ion Mass Spectrometer (IMS) and Ion Beam Spectrometer (IBS). The University of Oulu has a co-investigator status in the CAPS project, and been mainly involved in simulating the structure and scientific performance of the IBS instrument. IBS is a high resolution hemispherical electrostatic analyser aimed to stud
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46

Сабокар, Олег Сергійович. "Удосконалення магнітно-імпульсного обладнання для технологій ремонту транспортних засобів". Thesis, Харківський національний автомобільно-дорожній університет, 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/39634.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.09.13 – техніка сильних електричних та магнітних полів. Національний технічний університет "Харківський політехнічний інститут", Харків 2019. Дисертація присвячена вирішенню завдання поліпшення технічних показників обладнання магнітно-імпульсної обробки металів (міоми) для використання в технологіях металообробки і технологіях ремонту транспортних засобів. У роботі представлена розробка альтернативної конструкції вузла заряду ємнісних накопичувачів енергії та розробка системи індукційного нагріву. Дано числ
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47

Lamb, Christopher John. "Computer simulation of the action of a mechanical prosthetic heart valve and investigation of aortic flow field characteristics by magnetic resonance velocimetry." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312718.

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48

Сабокар, Олег Сергійович. "Удосконалення магнітно-імпульсного обладнання для технологій ремонту транспортних засобів". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/39631.

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Анотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.09.13 – техніка сильних електричних та магнітних полів. Національний технічний університет "Харківський політехнічний інститут", Харків 2019. Дисертація присвячена вирішенню завдання поліпшення технічних показників обладнання магнітно-імпульсної обробки металів (міоми) для використання в технологіях металообробки і технологіях ремонту транспортних засобів. У роботі представлена розробка альтернативної конструкції вузла заряду ємнісних накопичувачів енергії та розробка системи індукційного нагріву. Дано число
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49

Claypool, Ian Randolph. "A theoretical and numerical study of the use of grid embedded axial magnetic fields to reduce charge exchange ion induced grid erosion in electrostatic ion thrusters." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1172690635.

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50

Kessler, Philippe. "Simulation des grandes échelles d’écoulements compressibles en géométrie complexe." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0201.

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Анотація:
La transition a la turbulence d'ecoulements en geometrie complexe est etudiee par simulation numerique compressible bidimensionnelle et tridimensionnelle. On presente une simulation des grandes echelles d'un jet rond d'air, comparee a une experience en laboratoire et a une autre simulation numerique incompressible. Cette comparaison nous a permis de valider notre outil numerique. Nous montrons un bon accord entre les resultats experimentaux et notre simulation numerique en zone transitionnelle. On applique notre outil numerique a une geometrie complexe et industrielle: l'entree d'air en incide
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