Results 1 to 10 of about 266,078 (192)

Knotted solutions for linear and nonlinear theories: Electromagnetism and fluid dynamics

open access: yesPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2017
We examine knotted solutions, the most simple of which is the “Hopfion”, from the point of view of relations between electromagnetism and ideal fluid dynamics.
Carlos Hoyos, Horatiu Nastase
exaly   +2 more sources

Long-term Transmission Characteristics of CYTOP Fiber Exposed to Gamma Radiation [PDF]

open access: yesEPJ Web of Conferences, 2021
We investigated post-irradiation variations of the radiation induced attenuation (RIA) of polymer perfluorinated (CYTOP) optical fiber exposed to gamma radiation.
Chapalo Ivan   +5 more
doaj   +1 more source

The Electromagnetic Will [PDF]

open access: yesNeuroSci, 2021
The conscious electromagnetic information (cemi) field theory proposes that the seat of consciousness is the brain’s electromagnetic (EM) field that integrates information from trillions of firing neurons. What we call free will is its output. The cemi theory also proposes that the brain has two streams.
openaire   +2 more sources

A Wideband Feed Network for Vivaldi Antenna Arrays

open access: yesInternational Journal of Antennas and Propagation, 2022
A wideband feed network for a Vivaldi antenna array is presented. A limitation of current wideband antenna arrays is the bandwidth of either the feed network or the antenna element.
Natasha Antoinette Hall   +2 more
doaj   +1 more source

Compact 0.5–18 GHz double‐ridged guide horn antenna

open access: yesIET Microwaves, Antennas & Propagation, 2021
Broadband double‐ridged guide horn (DRGH) antennas are extensively used in antenna measurement and electromagnetic compatibility and interference testing, especially the 1–18 GHz DRGH antenna which is widely accepted as a standard for this band.
Bennie Jacobs   +2 more
doaj   +1 more source

Simultaneously realizing thermal and electromagnetic cloaking by multi-physical null medium [PDF]

open access: yesOpto-Electronic Science Vol. 3 No. 2 230027, 2024, 2023
Simultaneously manipulating multiple physical fields plays an important role in the increasingly complex integrated systems, aerospace equipment, biochemical productions, etc. For on-chip systems with high integration level (e.g., electronic/photonic chips and radio-frequency/microwave circuits), where both electromagnetic information/energy ...
arxiv   +1 more source

A Subcell Finite-Difference Time-Domain Implementation for Narrow Slots on Conductive Panels

open access: yesApplied Sciences, 2023
Efficiently modeling thin features using the finite-difference time-domain (FDTD) method involves a considerable reduction in the spatial mesh size. However, in real-world scenarios, such reductions can lead to unaffordable memory and CPU requirements ...
Miguel Ruiz Cabello   +7 more
doaj   +1 more source

Gravito-electromagnetism versus electromagnetism [PDF]

open access: yesEuropean Journal of Physics, 2003
13 Pages, LaTeX, 1 EPS figure, to appear in European Journal of ...
TARTAGLIA, Angelo, RUGGIERO, MATTEO LUCA
openaire   +6 more sources

Surface Plasmon Resonance sensor based on a D-shaped photonic crystal fiber with a bimetallic layer [PDF]

open access: yesEPJ Web of Conferences, 2020
The investigation of a D-shaped photonic crystal fiber sensor with a bimetallic layer for operation at the visible and infrared spectra is presented. The bimetallic layer is composed by silver and gold slabs deposited adjacently on the flat face of the ...
Cardoso Markos P.   +7 more
doaj   +1 more source

The implementation of wideband 90° hybrids on non‐optimal substrates

open access: yesElectronics Letters, 2022
A new technique to implement wideband 90° hybrid coupling profiles on non‐optimal substrate configurations is presented. The technique uses an impedance taper over the whole length of the hybrid to remove the restriction of a substrate defined maximum ...
Johan B. du Toit   +2 more
doaj   +1 more source

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