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Relevant bibliographies by topics / Electromagnetic-Based modeling / Dissertations / Theses

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Dissertations / Theses on the topic 'Electromagnetic-Based modeling'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Minteer, Timothy Michael. "Electromagnetic modeling based on directional time-distance energy transfer analogies." Thesis, Washington State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3587146.

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<p> A new electromagnetic model is established based on an average rate of directional time-distance energy transfers. A directional time-distance energy transfer is defined as an energy carrier mediator (boson) exchange. Electromagnetic force is modeled as mean valued, continual emission and absorption of energy carrier mediators. </p><p> For an isolated, spherically symmetric static charge distribution, Maxwell's stress equation is recast using a variant of Stokes' Theorem. The recast stress equation eliminates the stress normal to the electric field and establishes a stress only aligned

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2

Chien, Wei-Yin. "Electromagnetic modeling and experimental evaluation of plasmon-based molecular sensors." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21949.

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The advances in nanoscience and nanotechnology in recent decades have renewed the interests in the optical properties of metals. Today, the field known as Plasmonics studies the control and manipulation of the electromagnetic near-fields of metallic nanostructures in order to realize novel subwavelength optical applications. In particular, this thesis explores the phenomenon of plasmon resonance for molecular sensing. Surface plasmon resonance (SPR) on flat metal surfaces is used for index-of-refraction sensing and localized surface plasmon resonance (LSPR) on metal nanospheres can produce su

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3

Spinelli, Giovanni. "Electromagnetic characterization and modeling of CNT-based composites for industrial applications." Doctoral thesis, Universita degli studi di Salerno, 2012. http://hdl.handle.net/10556/343.

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2010 - 2011<br>In several applications for the aeronautic, automative and electronic industries, there is an increasing demand of structural nanocomposites exhibiting remarkable thermal and mechanical properties and, at the same time, tailored and controlled electromagnetic (EM) performances. The interest and the scientific importance of the topic is justified by the fact that the conventional materials do not have the suitable properties to satisfy the specific requirements for modern applications. Instead, two or more distinct materials may be combined to form a material which possesses sup

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4

Barzegaran, Mohammadreza. "Physics-Based Modeling of Power System Components for the Evaluation of Low-Frequency Radiated Electromagnetic Fields." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1239.

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The low-frequency electromagnetic compatibility (EMC) is an increasingly important aspect in the design of practical systems to ensure the functional safety and reliability of complex products. The opportunities for using numerical techniques to predict and analyze system’s EMC are therefore of considerable interest in many industries. As the first phase of study, a proper model, including all the details of the component, was required. Therefore, the advances in EMC modeling were studied with classifying analytical and numerical models. The selected model was finite element (FE) modeling, cou

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5

Lim, Jung Youl. "A distributed multi-level current modeling method for design analysis and optimization of permanent magnet electromechanical actuators." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53990.

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This thesis has been motivated by the growing needs for multi-degree of freedom (M-DOF) electromagnetic actuators capable of smooth and accurate multi-dimensional driving motions. Because high coercive rare-earth permanent-magnets (PMs) are widely available at low cost, their uses for developing compact, energy-efficient M-DOF actuators have been widely researched. To facilitate design analysis and optimization, this thesis research seeks to develop a general method based on distributed source models to characterize M-DOF PM-based actuators and optimize their designs to achieve high torque-to

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6

DU, ZIWEIHUA. "Time-domain Analysis of Multiconductor Transmission Lines Excited by Transient Electromagnetic Disturbances Based on the Analog Behavior Modeling." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2842495.

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7

Nejadpak, Arash. "Development of Physics-based Models and Design Optimization of Power Electronic Conversion Systems." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/824.

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The main objective for physics based modeling of the power converter components is to design the whole converter with respect to physical and operational constraints. Therefore, all the elements and components of the energy conversion system are modeled numerically and combined together to achieve the whole system behavioral model. Previously proposed high frequency (HF) models of power converters are based on circuit models that are only related to the parasitic inner parameters of the power devices and the connections between the components. This dissertation aims to obtain appropriate physi

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8

Danufane, Fadil. "Wireless communications assisted by reconfigurable intelligent surfaces : an electromagnetic model." Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG038.

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L'émergence de l'environnement radio intelligent (SRE) en tant que nouveau paradigme qui remet en question le status quo dans la communication sans fil a motivé l'utilisation des surface intelligentes reconfigurables (RIS) basées sur des métasurfaces pour améliorer la limite de performance des systèmes de communication sans fil. L'objectif principal de cette thèse est la modélisation d'un système de communication assisté par un RIS à l'aide d'approches basées sur l'électromagnétisme.Le Chapitre 1 présente le concept d'environnement radio intelligent. Nous donnons également la définition du RIS

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9

Argyropoulos, Christos. "FDTD modelling of electromagnetic transformation based devices." Thesis, Queen Mary, University of London, 2010. http://qmro.qmul.ac.uk/xmlui/handle/123456789/367.

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During this PhD study, several finite-difference time-domain (FDTD) methods were developed to numerically investigate coordinate transformation based metamaterial devices. A novel radially-dependent dispersive FDTD algorithm was proposed and applied to simulate electromagnetic cloaking structures. The proposed method can ac- curately model both lossless and lossy cloaks with ideal or reduced parameters. It was demonstrated that perfect “invisibility” from electromagnetic cloaks is only available for lossless metamaterials and within an extremely narrow frequency band. With a few modifications

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10

Kharrat, Mouna. "Contribution au choix d'architecture 3D des systèmes mécatroniques sous contraintes multi-physiques : Application aux Interférences Electro-Magnétiques (IEM)." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST049.

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L’intégration des systèmes mécatroniques génère de nombreuses perturbations multi-physiques (thermiques, électromagnétiques et dynamiques) rendant leur choix d’architecture complexe. En effet, l’introduction croissante de composants électroniques et électriques (E/E) dans la plupart des systèmes actuels, augmente le risque d’occurrence de nombreuses interférences électromagnétiques (IEM) pouvant dégrader fortement leur fonctionnement. Tandis que ces problèmes de compatibilité électromagnétique (CEM) sont généralement traités en phase de conception détaillée, où les possibilités de compromis se

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11

Hátsági, Bence. "Electromagnetic modellin and testing of a Thomson coil based actuator." Thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209200.

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The aim of the present thesis is to improve and optimize a Thomson coil based actuatorfor medium voltage vacuum interrupters. The Thomson coil based actuator’s concept isdiscussed. The thesis presents analytical as well as finite element models of the actuatoralong with a comparison of their results. Several experimental setups have been built forthis degree project and they are described in the thesis. Measurements from these setupsare also compared to simulation results. The thesis concludes by drawing conclusionsfrom the compared results and proposes possible directions for additional work

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12

Barrie, Kate. "FDTD electromagnetic modelling of cavity-based weighting functions for microwave radiometric temperature measurement." Thesis, University of Glasgow, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399668.

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13

Yilmaz, Asim Egemen. "Finite Element Modeling Of Electromagnetic Scattering Problems Via Hexahedral Edge Elements." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608587/index.pdf.

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In this thesis, quadratic hexahedral edge elements have been applied to the three dimensional for open region electromagnetic scattering problems. For this purpose, a semi-automatic all-hexahedral mesh generation algorithm is developed and implemented. Material properties inside the elements and along the edges are also determined and prescribed during the mesh generation phase in order to be used in the solution phase. Based on the condition number quality metric, the generated mesh is optimized by means of the Particle Swarm Optimization (PSO) technique. A framework implementing hierarchical

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14

Bradai, Sonia. "Design and Modelling of a Novel Hybrid Vibration Converter based on Electromagnetic and Magnetoelectric Principles." Universitätsverlag Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A32787.

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Supplying wireless sensors from ambient energy is nowadays highly demanded for a higher flexibility of use and low system maintenance costs. Vibration sources are thereby especially attractive due to their availability and the relatively high energy density they can provide. The aim of this work is to realize a hybrid energy converter for vibration sources having low amplitude and low frequency. The idea is to combine two diverse harvesters to realize a higher energy density and at the same time to improve the converter reliability. We focus on the design, modeling, and test of the hybrid vibr

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15

Armanious, Adel Fahmy. "Computation of radio frequency electromagnetic fields using the method of moments : an investigation of approaches to the development of electromagnetic field software based on the method of moments, including ...........and computer-aided design techniqu." Thesis, University of Bradford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235544.

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16

Coulibaly, Lacina M. "Crosstalk-based analytical modelling of electromagnetic signatures for non-invasive testing of VLSI circuits and systems." Thesis, Liverpool John Moores University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438850.

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17

Natarajan, Aswani. "Electromagnetic modelling of graphene-based nanophotonic devices : modal and scattering approaches using the finite element method." Thesis, Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0472.

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La plasmonique basée sur les matériaux 2D est un domaine en plein essor dans la photonique, avec des implications technologiques potentielles révolutionnaires dans des domaines aussi variés que le diagnostic, l'énergie et la communication. Le graphène, un matériau 2D unique et doté d'excellentes propriétés plasmoniques, est une alternative prometteuse aux métaux nobles conventionnels dans le domaine de la plasmonique, notamment en raison de ses propriétés accordables en fréquence. Le graphène est modélisé dans cette thèse comme une feuille conductrice infiniment mince dans le cadre des élément

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18

Gabdullin, N. "Modelling and design of high-speed, long-lifetime and large-force electromagnetic actuators based on magnetic shape memory alloys." Thesis, City, University of London, 2016. http://openaccess.city.ac.uk/16130/.

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The main topic of this research is modelling and design of high-speed, large-force and long life-time electromagnetic actuators based on Magnetic Shape Memory (MSM) alloys. These relatively new “smart” alloys that change shape in magnetic fields possess very promising properties such as large strain, considerable output stress and potentially very long fatigue life. However, there is still lack of a consistent design methodology for MSM-based devices which can be implemented using techniques common for engineering design. In order to bridge this gap, a modelling approach for MSM element in act

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19

Hertz, Erik M. "Thermal and EMI Modeling and Analysis of a Boost PFC Circuit Designed Using a Genetic-based Optimization Algorithm." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34234.

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The boost power factor correction (PFC) circuit is a common circuit in power electronics. Through years of experience, many designers have optimized the design of these circuits for particular applications. In this study, a new design procedure is presented that guarantees optimal results for any application. The algorithm used incorporates the principles of evolution in order to find the best design. This new design technique requires a rethinking of the traditional design process. Electrical models have been developed specifically for use with the optimization tool. One of the main foc

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20

Medhat, Abdel Maksoud Dina. "Study of New Miniaturized Microwave Devices based on Ratchet Effect in an Environment of Asymmetric Nano-Scatterers." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0075/document.

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La nanotechnologie est un domaine en voie d'expansion qui a attiré l'attention de la recherche en raison de ses applications potentielles illimitées. La technologie des ondes millimétriques est un autre domaine intéressant qui joue un rôle de premier plan dans le développement des systèmes de communications sans fil. La combinaison de ces deux champs de recherche avancée, donne naissance à l'innovation du Dispositif Ratchet qui est une nouvelle application qui représente un vrai défi. Ce dispositif est de taille nanométrique et son concept d'opération consiste à générer une tension DC lorsque

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21

Chang, Paul Chinling. "Physics-Based Inverse Processing and Multi-path Exploitation for Through-Wall Radar Imaging." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306646674.

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22

Bradai, Sonia [Verfasser], Olfa [Akademischer Betreuer] Kanoun, Olfa [Gutachter] Kanoun, Jörg [Gutachter] Himmel, and Tarak [Gutachter] Bouraoui. "Design and Modelling of a Novel Hybrid Vibration Converter based on Electromagnetic and Magnetoelectric Principles / Sonia Bradai ; Gutachter: Olfa Kanoun, Jörg Himmel, Tarak Bouraoui ; Betreuer: Olfa Kanoun." Chemnitz : Universitätsverlag Chemnitz, 2019. http://d-nb.info/121590925X/34.

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23

Hicks, Chris Wayne. "Experimental and electromagnetic modeling of waveguide-based spatial power combining systems." 2002. http://www.lib.ncsu.edu/theses/available/etd-11022002-174527/unrestricted/etd.pdf.

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24

Xiao, Shujun. "Modelling of electromagnetic fields in MICs based on full-wave space-time discrete numerical techniques." Thesis, 1996. http://hdl.handle.net/1828/6576.

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25

Mukherjee, Souvik. "Three Dimensional Controlled-source Electromagnetic Edge-based Finite Element Modeling of Conductive and Permeable Heterogeneities." 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8317.

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Presence of cultural refuse has long posed a serious challenge to meaningful geological interpretation of near surface controlled–source electromagnetic data (CSEM). Cultural refuse, such as buried pipes, underground storage tanks, unexploded ordnance, is often highly conductive and magnetically permeable. Interpretation of the CSEM response in the presence of cultural noise requires an understanding of electromagnetic field diffusion and the effects of anomalous highly conductive and permeable structures embedded in geologic media. While many numerical techniques have been used to evaluate th

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