Results 51 to 60 of about 7,839 (285)
, 1994 Applying the method of moments to Maxwell's equations, the two-dimensional TLM method is derived from first principles of field theory. Sampling Maxwell's equations with pulse functions yields three discretized field equations for the three electric and ...
Krumpholz, Michael;Russer, Peter +1 more
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Low‐Profile, High‐Gain GRIN RF Lenses via Multi‐Material Vat Photopolymerization
Advanced Functional Materials, EarlyView.We investigate the opportunity of leveraging multi‐material vat photopolymerization printing to manufacture intricate lenses exhibiting permittivity gradients that can increase signal gain in transmitted radiofrequency signals in the X‐ and Ku‐bands. Lenses produced with more distinct low‐loss materials (up to 5) can deliver an 18 dB signal gain with a
Lawrence Romangsuriat +3 more
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Completing Maxwell's equations by symmetrization
, 2003 Maxwell's equations have allowed to obtain, for more than 100 years, a large number of results in electricity, magnetism, optics, wave theory, etc. But the antisymmetry between electric and magnetic fields is not completely respected in Maxwell's ...
M. G. Guillemot
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Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application
Advanced Materials, EarlyView.This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong +12 more
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Solving 1D non‐linear magneto quasi‐static Maxwell's equations using neural networks
IET Science, Measurement & Technology, 2021 Electromagnetics (EM) can be described, together with the constitutive laws, by four PDEs, called Maxwell's equations. “Quasi‐static” approximations emerge from neglecting particular couplings of electric and magnetic field related quantities. In case of
Marco Baldan +2 more
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Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
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Maxwell’s Early Unitary View of Electricity and Fluid Mechanics
Encyclopedia, 2023 In young Maxwell’s eyes, electricity, magnetism and fluid mechanics present analogies that let the first be mathematically grasped in a unitary way similarly to the latter.
Giulia Tripodi, Giuseppe Ruta
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Advanced Materials, EarlyView.2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil +14 more
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Operator Gauge Symmetry in QED
Symmetry, Integrability and Geometry: Methods and Applications, 2006 In this paper, operator gauge transformation, first introduced by Kobe, is applied to Maxwell's equations and continuity equation in QED. The gauge invariance is satisfied after quantization of electromagnetic fields.
Siamak Khademi, Sadollah Nasiri
doaj
Maxwell's Equations for Magnets
, 2011 Magnetostatic fields in accelerators are conventionally described in terms of multipoles. We show that in two dimensions, multipole fields do provide solutions of Maxwell's equations, and we consider the distributions of electric currents and geometries ...
Wolski, Andrzej
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