Results 21 to 30 of about 65,572 (266)
Quasi‐3D magnetic field simulation of superconducting devices with translational symmetry
IET Science, Measurement & Technology, 2021 This work presents a quasi‐three‐dimensional (Q3D) approach for the magnetic field simulation in superconducting devices. First‐order two‐dimensional finite‐element edge functions in the model's cross‐section are combined with one‐dimensional orthogonal ...
Laura A. M. D'Angelo, Herbert De Gersem
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Coupling Theory of Emergent Spin Electromagnetic Field and Electromagnetic Field [PDF]
Journal of the Physical Society of Japan, 2014 In ferromagnetic metals, an effective electromagnetic field which couples to conduction electron spin is induced by the sd exchange interaction. We investigate how this effective field, spin electromagnetic field, interacts with the ordinary electromagnetic field by deriving an effective Hamiltonian based on the path-integral formalism.
Kawaguchi, Hideo, Tatara, Gen
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Applied Sciences, 2020 This article reports recent developments in modelling based on Finite Difference Time Domain (FDTD) and Finite Element Method (FEM) for dielectric resonator material measurement setups. In contrast to the methods of the dielectric resonator design, where
Arif Can Gungor +4 more
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Sensors, 2021 Stresses and deformations are some of the main factors influencing the mechanical and magnetic properties of steels. Resonance methods, based on the utilization of high-frequency electromagnetic fields, are the ones that can provide information about the
Grzegorz Psuj +3 more
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Light in Memristive Atomic Scale Junction - Memristors go Photonics [PDF]
EPJ Web of Conferences, 2023 Memristive devices are an emerging new type of devices operating at the scale of a few or even single atoms. They largely exploited for emulating the electrical function of synapses and are thus currently investigated for performing in-memory and ...
Malchow Konstantin +5 more
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Waveguide coupled III-V photodiodes monolithically integrated on Si
Nature Communications, 2022 To realize on-chip optical communication schemes based on silicon, the integration of waveguides onto III-V devices must be achieved. Here, the authors report waveguide-coupled III-V heterostructure photodiodes monolithically integrated on silicon ...
Pengyan Wen +10 more
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A magic electromagnetic field [PDF]
, 2003 An electromagnetic field of simple algebraic structure is simply derived. It turns out to be the G=0 limit of the charged rotating Kerr-Newman metrics. These all have gyromagnetic ratio 2, the same as the Dirac electron. The charge and current distributions giving this high gyromagnetic ratio have charges of both signs rotating at close to the velocity
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e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2022 We consider the problem of optimizing the design of a heat sink used for cooling an insulated gate bipolar transistor (IGBT) power module. The thermal behavior of the heat sink is originally estimated using a high-fidelity computational fluid dynamics ...
Dimitrios Loukrezis, Herbert De Gersem
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3D zeros in electromagnetic fields
Optica, 2023 We present a study of 3D electromagnetic field zeros, uncovering their remarkable characteristic features and propose a classifying framework. These are a special case of general dark spots in optical fields, which sculpt light’s spatial structure into matter-moving, information-rich vortices, escape the diffraction limit for ...
Alex J. Vernon +2 more
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Eddy current testing of metallic sheets with defects using force measurements [PDF]
Serbian Journal of Electrical Engineering, 2008 The problem of determining defects in structures using eddy current methods was investigated. The goal of this work is to demonstrate that the forces generated by the eddy currents and acting back on the magnet system can be used to detect defects in the
Brauer Hartmut, Ziolkowski Marek
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