Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 75 for “"electromagnetism"”.
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Electromagnetism in Gravitational Collapse
A numerical approach to including electromagnetism with general relativity is developed using GRAXI as a starting point. We develop a mathematical model describing electromagnetism coupled to a scalar field in an evolving axisymmetric spacetime. As there are numerous formulations of …
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Exploring the edge of electromagnetism using extreme fields
This thesis considers aspects of nonlinear electromagnetism and the eects of spin under the in uence of extreme elds. Born-Infeld-like theories are studied in the context of possible slow light experiments. Maximum amplitude plasma waves are considered as a possible testing ground for nonlinear …
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Technology enabled science teaching : software framework for electromagnetism
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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On numerical methods for direct and inverse problems in electromagnetism
… as well as with inverse ones, low frequency electromagnetism is discussed and consequently the wave propagation problem in high frequency domain is studied. Study of electromagnetic materials and their behavior is of a huge interest for the technological world. Its importance originates from …
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Applications of Artificial Intelligence to Electromagnetism and Indoor Wireless Networks
Fifth-generation (5G) and beyond (B5G) mobile networks are anticipated to revolutionise the structure of the wireless ecosystem and support a set of highly heterogeneous applications, handing a substantially larger volume of mobile traffic with diverse requirements in terms of bandwidth, …
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On Generalized Solutions to Some Problems in Electromagnetism and Geometric Optics
The Maxwell equations of electromagnetism form the foundation of classical electromagnetism, and are of interest to mathematicians, physicists, and engineers alike. The first part of this thesis concerns boundary value problems for the anisotropic Maxwell equations in Lipschitz domains. In this …
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The development of pre-service teachers' pedagogical content knowledge in electromagnetism
… (PCK) of pre-service teachers in the topic of electromagnetism, during a physics methodology module. The study is guided by the following question: How is the development of the PCK of pre-service teachers influenced by the explicit inclusion of topic specific PCK about electromagnetism in …
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Identifying and Addressing Student Difficulties with the Source-Field Relationship using Tutorials in Upper-Division Electromagnetism
… the source-field relationship in upper-division electromagnetism. The three core aspects of the source-field relationship discussed in this dissertation are: the interpretation and use of integrals in describing superposition from distributed sources, the use of symmetry arguments to infer …
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Modeling microwave heating of apple cylinders using hybrid mixture theory based transport equations coupled with Maxwell's laws of electromagnetism
To develop an efficient microwave drying scheme for apple cylinders, a multiscale mathematical model was developed to predict the moisture and temperature profiles. Two-scale hybrid mixture theory (HMT) based transport equations were utilized to describe the fluid (water & gas phases) transport …
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An investigation of didactic energy transfer systems
… energy conversion and they introduce topics from electromagnetism to mechanical engineering. The new systems developed include a DC motor kit for learning about motor design and use, a linear synchronous motor for learning about electromagnetism, classical mechanics and ballistics, and an end to …
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Modeling of transport mechanisms and quality changes during the microwave frying of foods by solving hybrid mixture theory-based unsaturated transport equations coupled with maxwell's equations of electromagnetism
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Novel applications of Maxwell's equations to quantum and thermal phenomena
… to situations far removed from standard electromagnetism, in order to discover novel phenomena. We discuss our contributions to the efforts to describe quantum fluctuations, known as Casimir forces, in terms of classical electromagnetism. We prove that chirality in metamaterials can have …
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Keberkesanan penggunaan edubase dalam kalangan pelajar teknikal yang berbeza gaya kognitif, afektif dan psikomotor di Politeknik Malaysia
… afektif dan psikomotor yang berbeza dalam topik Electromagnetism. Seramai 70 orang pelajar politeknik yang terdiri daripada 33 pelajar kumpulan rawatan dan 37 pelajar kumpulan kawalan telah terlibat dalam kajian yang menggunakan kaedah kuasi-ekperimen ini. Ujian kognitif, psikomotor, ujian …
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Subdimensional particles and higher rank quantum phases of matter
… and magnetic fields, in a form of generalized electromagnetism. We will establish the basic theoretical principles of this new tensor electromagnetism, including its Maxwell equations, force laws, and electrostatic properties. Finally, as a special case of the higher rank formalism, we will …
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How do pre-service teachers picture various electromagnetic phenomenon? : a qualitative study of pre-service teachers' conceptual understanding of fundamental electromagnetic interaction
… the students answering the three questions on electromagnetism using a free response approach including both verbal and pictorial representation. The student responses are then analyzed qualitatively and quantitatively utilizing a multi-tiered approach. These analyses include epistemological …
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A space-time approach to quantum mechanics
… mechanics, ï¬ eld theory, curved manifolds, electromagnetism, and gravity as a gauge theory.
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Novel Derivations of the Metric from the Newtonian Potential and of the Relativistic Quantum Equation
… a gravitational field. I unify the two fields of electromagnetism and gravity into one symmetric metric. In the second part of this thesis, I derive a novel relativistic quantum equation. The operators are derived, and the uncertainty relations are found. Solutions are analyzed for the flatspace …
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Stability of an oscillon un the SU (2) gauged Higgs model
… standard model of the weak interactions without electromagnetism and fermions. In this thesis, we study the stability of these objects. We do this by adding a massless mode to the model and coupling it to the oscillating fields contained in the Higgs doublet. Such a mode is expected to provide a …
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Frustration from Frustration: Field Tuning, Vison Crystallisation, and Disorder in Quantum Spin Ice
… magnet. This playground for alternate-universe electromagnetism exhibits many phenomena beyond standard theory, including strong- coupling confinement, Dirac monopoles, axions and theta terms. Excitingly, recent experiments on the Ce based pyrochlore Ce Zr O have produced compelling evidence in …
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