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Relevant bibliographies by topics / Magnetic systems dynamics / Dissertations / Theses

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Dissertations / Theses on the topic 'Magnetic systems dynamics'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Borlenghi, Simone. "Electronic transport and magnetization dynamics in magnetic systems." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00590363.

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L'objectif de ce travail de thèse est de comprendre l'influence mutuelle entre le transport électronique et la dynamique de l'aimantation dans des nanostructures hybrides magnétiques métalliques. Dans une première partie on a développé un modèle théorique, basé sur la théorie des matrices aléatories, pour décrire au niveau microscopique le transport dépendent du spin dans une nanostructure hétérogène. Ce modèle, appélé CRMT (pour Continuous Random Matrix Theory) a ensuite été traduit dans un code de simulation qui permet de calculer les proprietés locales (couple de transfert de spin, accumula

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2

Borlenghi, Garoia Simone. "Electronic transport and magnetization dynamics in magnetic systems." Paris 6, 2011. http://www.theses.fr/2011PA066009.

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L'objectif de ce travail de thèse est de comprendre l'influence mutuelle entre transport électronique et dynamique de l'aimantation dans des nanostructures hybrides magnétiques métalliques. Dans une première partie on a développé un modèle théorique, basé sur la théorie des matrices aléatories, pour décrire à niveau microscopique le transport dépendent du spin dans une nanostructure hétérogène. Ce modèle, appélé CRMT (Continuous Random Matrix Theory) a ensuite été traduit dans un code de simulation qui permet de calculer les proprietés locales (couple de transfert de spin, accumulation de spin

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3

Zhang, Shulei. "Spin Transport and Magnetization Dynamics in Various Magnetic Systems." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/333352.

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The general theme of the thesis is the interplay between magnetization dynamics and spin transport. The main presentation is divided into three parts. The first part is devoted to deepening our understanding on magnetic damping of ferromagnetic metals, which is one of the long-standing issues in conventional spintronics that has not been completely understood. For a nonuniformly-magnetized ferromagnetic metal, we find that the damping is nonlocal and is enhanced as compared to that in the uniform case. It is therefore necessary to generalize the conventional Landau-Lifshitz-Gilbert equation to

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4

Pimental, Iveta Rombeiro do Rego. "Critical dynamics in spin glasses and dilute magnets." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329986.

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5

Lago, Jorge. "Magnetic ordering and dynamics of two transition metal oxide systems." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670216.

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6

Ellis, Kevin John. "Neutron and muon studies of spin dynamics in magnetic systems." Thesis, University of Huddersfield, 2013. http://eprints.hud.ac.uk/id/eprint/18079/.

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In this thesis I present an investigation on the spin dynamics observed during moment localisation, non-ergodic magnetic phase transitions, and weak itinerant electron magnetism. The pseudo-binary compound Y(Mn1-xAlx)2 has been investigated under the influence of equivalent opposing chemical and mechanical pressures using Muon Spin Relaxation. The results reveal the application of external mechanical pressure (4.5kbar) to destabilise the manganese moment, and produce a ground stte distinctly different to that seen under ambient pressure conditions. Short-range nuclear and spin correlations hav

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7

Li, Dawei. "Relaxation dynamics in some reentrant disordered magnetic systems, FeNiCr, FeNiMn, CrFe." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq23627.pdf.

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8

Dobramysl, Ulrich. "On the Relaxation Dynamics of Disordered Systems." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23757.

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We investigate the properties of two distinct disordered systems: the two-species predator-prey Lotka-Volterra model with rate variability, and an elastic line model to simulate vortex lines in type-II superconductors. We study the effects of intrinsic demographic variability with inheritance in the reaction rates of the Lotka-Volterra model via zero-dimensional Monte Carlo simulations as well as two-dimensional lattice simulations. Individuals of each species are assigned inheritable predation efficiencies during their creation, leading to evolutionary dynamics and thus population-level opti

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9

Schmiel, David R. "Effects of variations in controller gains on the dynamics of magnetic bearings." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-11182008-063516/.

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10

Yadav, Nirbhay N. "Probing porous systems using nuclear magnetic resonance diffusometry." View thesis, 2009. http://handle.uws.edu.au:8081/1959.7/46601.

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Thesis (Ph.D.)--University of Western Sydney, 2009.<br>A thesis presented to the University of Western Sydney, College of Health and Science, School of Biomedical and Health Sciences, in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliographies.

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11

Brown, Bart Lee II. "Pattern formations and relaxation dynamics in non-equilibrium systems." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/89346.

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We present an investigation of two non-equilibrium systems: spatial many-species predator-prey games and systems of interacting magnetic skyrmions. We numerically study two predator-prey systems characterized by nested pattern formations. We first consider a six species game in which spiral patterns spontaneously form within coarsening domains. Through a systematic investigation of relevant correlation functions, the interface width, and other quantities, we show that the non-trivial in-domain dynamics affect the coarsening process and the interfacial properties. The exponents which govern

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12

Margineda, Daniel. "Investigations of spin dynamics in magnetic systems and development of novel probes." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/111448/.

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This thesis presents the development of the first SQUID-based ac-magnetometer built in a dry dilution fridge. The possibility of expanding the frequency respond from tens of kHz of a commercial magnetometer to the bandwidth of muon-spin relaxation μSR (MHz), an indirect magnetic probe, which measures magnetic dynamics from the depolarisation of fundamental particles, is demonstrated. It opens a new scenario to investigate classical and quantum magnetic fluctuations by a direct probe in a range of frequencies that have an important role in exotic magnetic phases. Geometrical spin ices, frustrat

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13

Rantaharju, J. (Jyrki). "Magnetization dynamics in paramagnetic systems." Doctoral thesis, Oulun yliopisto, 2018. http://urn.fi/urn:isbn:9789526221205.

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Abstract This thesis reports simulations of direct observables in electron and nuclear spin relaxation experiments in an example paramagnetic system, as well as polarization transfer occurring in a spin-exchange optical pumping (SEOP) experiment. Studies of paramagnetic relaxation are important, e.g., in the development of agents used for enhanced contrast in magnetic resonance imaging. SEOP is used to produce hyperpolarized noble gases, which are then used to, e.g., enhance sensitivity in structural studies of matter with nuclear magnetic resonance. Presently the theory, available software a

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14

Adams, Daniel J. "Magnetization Dynamics in Coupled Thin Film Systems." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2578.

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A study is presented detailing experimental investigations of magnetization dynamics in nanostructured systems which are coupled magnetically. This work seeks to characterize the anisotropy of such systems through experimental techniques which probe microwave resonant absorption in the materials. A custom-built experimental setup, designed and assembled in our labs, is explained in detail. This setup allows for angular-dependent ferromagnetic resonance (FMR) measurements in the sample plane through vector network analyzer spectroscopy and is adaptable to two different types of coplanar wavegui

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15

Radu, Cosmin. "Study of Magnetization Switching in Coupled Magnetic Nanostructured Systems." ScholarWorks@UNO, 2008. http://scholarworks.uno.edu/td/894.

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A study of magnetization dynamics experiments in nanostructured materials using the rf susceptibility tunnel diode oscillator (TDO) method is presented along with a extensive theoretical analysis. An original, computer controlled experimental setup that measures the change in susceptibility with the variation in external magnetic field and sample temperature was constructed. The TDO-based experiment design and construction is explained in detail, showing all the elements of originality. This experimental technique has proven reliable for characterizing samples with uncoupled magnetic st

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16

Panicker, Anil T. "A systems dynamics economic evaluation methodology for high speed inter-city transportation." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10102009-020125/.

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17

Schavkan, Alexander [Verfasser], and Gerhard [Akademischer Betreuer] Grübel. "Dynamics of colloidal systems of magnetic nanoparticles under influence of magnetic fields investigated by XPCS / Alexander Schavkan ; Betreuer: Gerhard Grübel." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2017. http://d-nb.info/1135725276/34.

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18

Schavkan, A. [Verfasser], and Gerhard [Akademischer Betreuer] Grübel. "Dynamics of colloidal systems of magnetic nanoparticles under influence of magnetic fields investigated by XPCS / Alexander Schavkan ; Betreuer: Gerhard Grübel." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2017. http://nbn-resolving.de/urn:nbn:de:gbv:18-85618.

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19

Rodgers, Christopher T. "Magnetic field effects in chemical systems." Thesis, University of Oxford, 2007. http://ora.ox.ac.uk/objects/uuid:f5878b88-c5ba-4cbd-83af-857431aef66e.

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Magnetic fields influence the rate and/or yield of chemical reactions that proceed via spin correlated radical pair intermediates. The field of spin chemistry centres around the study of such magnetic field effects (MFEs). This thesis is particularly concerned with the effects of the weak magnetic fields B₀ ~ 1mT relevant in the ongoing debates on the mechanism by which animals sense the geomagnetic field and on the putative health effects of environmental electromagnetic fields. Relatively few previous studies have dealt with such weak magnetic fields. This thesis presents several new theoret

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20

Yan, Hui. "Dynamics and real-time optimal control of satellite attitude and satellite formation systems." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4283.

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In this dissertation the solutions of the dynamics and real-time optimal control of magnetic attitude control and formation flying systems are presented. In magnetic attitude control, magnetic actuators for the time-optimal rest-to-rest maneuver with a pseudospectral algorithm are examined. The time-optimal magnetic control is bang-bang and the optimal slew time is about 232.7 seconds. The start time occurs when the maneuver is symmetric about the maximum field strength. For real-time computations, all the tested samples converge to optimal solutions or feasible solutions. We find the average

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21

Sánchez-Barriga, Jaime. "A photoemission study of quasiparticle excitations, electron-correlation effects and magnetization dynamics in thin magnetic systems." Phd thesis, Universität Potsdam, 2010. http://opus.kobv.de/ubp/volltexte/2010/4849/.

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This thesis is focused on the electronic, spin-dependent and dynamical properties of thin magnetic systems. Photoemission-related techniques are combined with synchrotron radiation to study the spin-dependent properties of these systems in the energy and time domains. In the first part of this thesis, the strength of electron correlation effects in the spin-dependent electronic structure of ferromagnetic bcc Fe(110) and hcp Co(0001) is investigated by means of spin- and angle-resolved photoemission spectroscopy. The experimental results are compared to theoretical calculations within the th

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22

Landers, Joachim [Verfasser], and Heiko [Akademischer Betreuer] Wende. "Study of magnetic relaxation dynamics in soft matter nanoparticle composite systems / Joachim Landers ; Betreuer: Heiko Wende." Duisburg, 2017. http://d-nb.info/1127527770/34.

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23

Stagraczyński, Stefan Piotr [Verfasser]. "Magnetic dynamics and spin currents in quantum spin systems strongly coupled to environment / Stefan Piotr Stagraczyński." Halle, 2017. http://d-nb.info/114951289X/34.

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24

Liu, Peiwen. "Ultrafast Optical Control And Characterization Of Carrier And Spin Dynamics In Novel Magnetic Topological Insulator Systems." W&M ScholarWorks, 2021. https://scholarworks.wm.edu/etd/1627047889.

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Magnetic topological insulators (MTIs) are of considerable interest in developing novel spintronics and quantum computing applications. Under the topological protection by time-reversal Z2 invariant number, magnetic topological insulators are provided with robust electronic and magnetic properties against local perturbations. The quantum anomalous Hall effect (QAHE), which harbors dissipationless chiral edge states in MTIs, provides a competitive platform for future low-power consumption and high-speed spintronic devices. Although the present studies on both bulk and surface magnetic propertie

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25

Assi, Hiba. "Non-Equilibrium Relaxation Dynamics in Disordered Superconductors and Semiconductors." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/70858.

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We investigate the relaxation properties of two distinct systems: magnetic vortex lines in disordered type-II superconductors and charge carriers in the Coulomb glass in disordered semiconductors. We utilize an elastic line model to simulate magnetic flux lines in disordered type-II superconductors by performing Langevin molecular dynamics simulations. We study the non-equilibrium relaxation properties of flux lines in the presence of uncorrelated point-like disorder or extended linear defects analyzing the effects of rapid changes in the system's temperature or magnetic field on these proper

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26

Elgabarty, Hossam [Verfasser]. "Probing the Structure and Dynamics of Disordered Systems by MD-averaged ab initio Magnetic Resonance / Hossam Elgabarty." Berlin : Freie Universität Berlin, 2013. http://d-nb.info/1042186073/34.

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27

Chaturvedi, Harshwardhan Nandlal. "Dynamics of Driven Vortices in Disordered Type-II Superconductors." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/86844.

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We numerically investigate the dynamical properties of driven magnetic flux vortices in disordered type-II superconductors for a variety of temperatures, types of disorder and sample thicknesses. We do so with the aid of Langevin molecular dynamics simulations of a coarsegrained elastic line model of flux vortices in the extreme London limit. Some original findings of this doctoral work include the discovery that flux vortices driven through random point disorder show simple aging following drive quenches from the moving lattice state to both the pinned glassy state (non-universal aging) and n

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28

Naugle, Cameron R. "Rotordynamic Analysis of Theoretical Models and Experimental Systems." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1867.

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This thesis is intended to provide fundamental information for the construction and analysis of rotordynamic theoretical models, and their comparison the experimental systems. Finite Element Method (FEM) is used to construct models using Timoshenko beam elements with viscous and hysteretic internal damping. Eigenvalues and eigenvectors of state space equations are used to perform stability analysis, produce critical speed maps, and visualize mode shapes. Frequency domain analysis of theoretical models is used to provide Bode diagrams and in experimental data full spectrum cascade plots. Experi

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29

Klingler, Stefan Horst [Verfasser], Sebastian T. B. [Akademischer Betreuer] Goennenwein, Sebastian T. B. [Gutachter] Goennenwein, and Christian [Gutachter] Back. "Magnetization dynamics in coupled magnetic systems / Stefan Horst Klingler ; Gutachter: Sebastian T.B. Goennenwein, Christian Back ; Betreuer: Sebastian T.B. Goennenwein." München : Universitätsbibliothek der TU München, 2019. http://d-nb.info/118325962X/34.

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30

Walker, Philipp [Verfasser], and Jan [Akademischer Betreuer] Lipfert. "Millisecond dynamics of biological systems investigated with magnetic tweezers and small-angle X-ray scattering / Philipp Walker ; Betreuer: Jan Lipfert." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1189584611/34.

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31

Simmons, Stephanie. "Creation and control of entanglement in condensed matter spin systems." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:b9c5ad90-30e2-4e44-8c51-37d46eabc92f.

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The highly parallel nature of the fundamental principles of quantum mechanics means that certain key resource-intensive tasks --- including searching, code decryption and medical, chemical and material simulations --- can be computed polynomially or even exponentially faster with a quantum computer. In spite of its remarkably fast development, the field of quantum computing is still young, and a large-scale prototype using any one of the candidate quantum bits (or 'qubits') under investigation has yet to be developed. Spin-based qubits in condensed matter systems are excellent candidates. Spin

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32

Regan, David Gabriel. "NMR DIFFUSION MEASUREMENTS OF COMPARTMENTALIZED AND MULTICOMPONENT BIOLOGICAL SYSTEMS: Studies of Tropoelastin, the Self Association of N Methylacetamide, and q-Space Analysis of Real and Model Cell Suspensions." University of Sydney. School of Molecular and Microbial Biosciences, 2002. http://hdl.handle.net/2123/514.

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Molecular diffusion is an inherent feature of all fluid systems. The processes and interactions that characterize these systems are in some way dependent upon the mobility of the component molecules. Pulsed field-gradient spin-echo nuclear magnetic resonance (PGSE NMR) is a powerful tool for the study of molecular diffusion; for heterogeneous systems, such as those typically found in biology, this technique is unsurpassed in the diversity of systems that yield to its probing. The aim of the work presented in this thesis was to use an integrated NMR-based approach, in conjunction with computer

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33

Johnson, Kevin Robert. "In Vivo Coronary Wall Shear Stress Determination Using CT, MRI, and Computational Fluid Dynamics." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14482.

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Wall shear stress (WSS) has long been identified as a factor in the development of atherosclerotic lesions. Autopsy studies have revealed a strong tendency for lesion development at arterial branch sites and along the inner walls of curvature areas that, in theory, should experience low WSS. Calculations of coronary artery WSS have typically been based upon average models of coronary artery geometry with average flow conditions and then compared to average lesion distributions. With all the averaging involved, a more detailed knowledge of the correlation between WSS and atherosclerotic lesi

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34

Kurcyus, Katarzyna [Verfasser], Valentin [Akademischer Betreuer] Riedl, Helmuth [Gutachter] Adelsberger, and Markus [Gutachter] Ploner. "Using magnetic resonance spectroscopy to study neural activity: The role of inhibitory and excitatory neurotransmitters for systems-level brain dynamics / Katarzyna Kurcyus ; Gutachter: Helmuth Adelsberger, Markus Ploner ; Betreuer: Valentin Riedl." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1172880034/34.

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35

Le, Toan T. "A Single-Stage Passive Vibration Isolation System for Scanning Tunneling Microscopy." DigitalCommons@CalPoly, 2021. https://digitalcommons.calpoly.edu/theses/2272.

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Scanning Tunneling Microscopy (STM) uses quantum tunneling effect to study the surfaces of materials on an atomic scale. Since the probe of the microscope is on the order of nanometers away from the surface, the device is prone to noises due to vibrations from the surroundings. To minimize the random noises and floor vibrations, passive vibration isolation is a commonly used technique due to its low cost and simpler design compared to active vibration isolation, especially when the entire vibration isolation system (VIS) stays inside an Ultra High Vacuum (UHV) environment. This research aims t

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36

Vannette, Matthew Dano. "Dynamic magnetic susceptibility of systems with long-range magnetic order." [Ames, Iowa : Iowa State University], 2009.

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37

Sunny, Ajin. "SINGLE-DEGREE-OF-FREEDOM EXPERIMENTS DEMONSTRATING ELECTROMAGNETIC FORMATION FLYING FOR SMALL SATELLITE SWARMS USING PIECEWISE-SINUSOIDAL CONTROLS." UKnowledge, 2019. https://uknowledge.uky.edu/me_etds/146.

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This thesis presents a decentralized electromagnetic formation flying (EMFF) control method using frequency-multiplexed sinusoidal control signals. We demonstrate the EMFF control approach in open-loop and closed-loop control experiments using a single-degree-of-freedom testbed with an electromagnetic actuation system (EAS). The EAS sense the relative position and velocity between satellites and implement a frequency-multiplexed sinusoidal control signal. We use a laser-rangefinder device to capture the relative position and an ARM-based microcontroller to implement the closed-loop control alg

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38

Yu, Howard. "Spin Dynamics in Novel Materials Systems." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1435582765.

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39

Hall, Dennis A. (Dennis Alan) 1970. "Dynamic nuclear polarization of biological systems at high magnetic fields." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9635.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1998.<br>Includes bibliographical references.<br>Dynamic nuclear polarization methods were studied at high magnetic field strength and were applied to improve the sensitivity of the nuclear magnetic resonance spectroscopy of biological solids. Studies of the dynamics of electron-nuclear polarization transfer via the solid effect and thermal mixing at 5 Tesla are described for two systems: the free radical BDPA doped into polystyrene and the nitroxide TEMPO in a water:glycerol matrix. A model for thermal mixing at high m

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40

Wigström, Lars. "Multidimensional magnetic resonance imaging : new methods for analysis of cardiovascular dynamics /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/tek807s.pdf.

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41

MEHRPARVAR, MAHSHID. "Control Systems for Experimental Magnetic Materials Characterization Using Dynamic Preisach Models." Thesis, KTH, Elektrisk energiomvandling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-160704.

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The eciency of electrical machines is of major concern due to their widespread usage and the globally increasing awareness of energy consumption issues. Iron losses have a signicant impact on the total and thus researchers and manufacturers of electrical machines are developing dierent strategies in order to reduce them. The iron losses are highly dependent on the magnetic material that is used and thus it is necessary to identify its relevant characteristics. In this work, the development of a control system for inducing a pure sinusoidal magnetic ux density in the magnetic material is descri

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42

Buttini, Thiago Malta. "Algoritmo de autoidentificação para o controle autônomo de vibrações em sistemas rotativos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-03102011-210959/.

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Vibrações são intrínsecas às máquinas rotativas e, embora não possam ser completamente eliminadas, devem ser controladas de modo a se evitar fadiga e até mesmo falha da máquina. Neste contexto, devido à sua capacidade de alterar as características dinâmicas destas máquinas, os mancais ativos são uma solução efetiva a fim de se reduzir vibrações em rotores, permitindo não só maior ciclo de vida, mas também aumento de confiabilidade e desempenho. Frequentemente, o projeto do sistema de controle destes mancais baseia-se em um modelo matemático da planta, o qual pode ser de difícil obtenção e, dev

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43

Stockem, Irina [Verfasser]. "Modeling and simulation of the static and dynamic magnetic properties of nanostructured magnetic multilayer systems / Irina Stockem." Bielefeld : Universitätsbibliothek Bielefeld, 2016. http://d-nb.info/1105645479/34.

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McCallum, Duncan C. (Duncan Craig). "Dynamic modelling and control of a magnetic bearing-suspended rotor system." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14554.

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45

Dai, Huiguang. "Dynamic behavior of maglev vehicle/guideway system with control." Case Western Reserve University School of Graduate Studies / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1117563035.

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46

Zhang, Bin [Verfasser]. "Static and Dynamic Magnetic Properties of Exchange-coupled Thin Film Systems / Bin Zhang." Berlin : Freie Universität Berlin, 2014. http://d-nb.info/1060717913/34.

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47

Yudin, Dmitry. "Trends in Magnetism : From Strong Correlations to “-onics” Technology." Doctoral thesis, Uppsala universitet, Materialteori, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-238177.

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Despite of enormous progress in experimental nanophysics theoretical studies of low-dimensional electron systems still remains a challenging task. Indeed, most of the structures are strongly correlated, so that an effective perturbative treatment is impossible due to the lack of a small parameter. The problem can be partly solved within the dynamical mean-field theory (DMFT) paradigm, nevertheless the correlations in physically relevant high-temperature superconductors are of purely non-local nature. The recently developed dual fermion approximation, combining field-theoretical diagram techniq

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48

Rößler, Stefan [Verfasser]. "Magnetic imaging of static and dynamic states in systems of reduced dimensions / Stefan Rößler." Aachen : Shaker, 2015. http://d-nb.info/1069048666/34.

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Yao, Li. "Magnetic field modelling of machine and multiple machine systems using dynamic reluctance mesh modelling." Thesis, University of Nottingham, 2006. http://eprints.nottingham.ac.uk/10224/.

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This thesis concerns the modified and improved, time-stepping, dynamic reluctance mesh (DRM) modelling technique for machines and its application to multiple machine systems with their control algorithms. Improvements are suggested which enable the stable solution of the resulting complex non-linear equations. The concept of finite element (FE) derived, overlap-curves has been introduced to facilitate the evaluation of the air-gap reluctances linking the teeth on the rotor to those on the stator providing good model accuracy and efficient computation. Motivated industrially, the aim of the wor

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50

Bakker, Lennard Frank. "Brake orbits and magnetic twistings in two degrees of freedom Hamiltonian dynamical systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq20547.pdf.

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