Results 31 to 40 of about 2,446 (136)
Design of a test for the electromagnetic coupling of non-local wavefunctions
, 2019 It has recently been proven that certain effective wavefunctions in fractional quantum mechanics and condensed matter do not have a locally conserved current; as a consequence, their coupling to the electromagnetic field leads to extended Maxwell ...
Modanese, G.
core +1 more source
Helicity within the vortex filament model [PDF]
, 2016 Kinetic helicity is one of the invariants of the Euler equations that is associated with the topology of vortex lines within the fluid. In superfluids, the vorticity is concentrated along vortex filaments.
AT Winfree +26 more
core +2 more sources
Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics
Advanced Science, Volume 12, Issue 3, January 20, 2025.Report a very low frequency antenna with enhanced radiation characteristics, which employs a high‐power‐density, low‐loss amorphous/nanocrystalline alloy Fe73.5Cu1Nb3B9Si13.5 to fabricate the impedance matching structure, enabling long‐distance low‐frequency communication.
Jingqi Wu +4 more
wiley +1 more source
On the long time behavior of stochastic vortices systems [PDF]
, 2013 In this paper, we are interested in the long-time behaviour of stochastic systems of n interacting vortices: the position in R2 of each vortex evolves according to a Brownian motion and a drift summing the influences of the other vortices computed ...
Fontbona, Joaquin, Jourdain, Benjamin
core +4 more sources
Mean field limit of interacting filaments and vector valued non linear PDEs
, 2016 Families of $N$ interacting curves are considered, with long range, mean field type, interaction. A family of curves defines a 1-current, concentrated on the curves, analog of the empirical measure of interacting point particles.
Bessaih, Hakima +2 more
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Modeling Toroidal Currents in the Ionospheric Electrojet Regions
Journal of Geophysical Research: Space Physics, Volume 130, Issue 1, January 2025.Abstract New basis functions, suitable for fitting magnetic field observations of the auroral and equatorial electrojets, are constructed by applying principal components analysis (PCA) to a set of rotated current loops in the ionospheric E‐layer.
P. Alken, G. D. Egbert
wiley +1 more source
Vortex density fluctuations in quantum turbulence
, 2011 We compute the frequency spectrum of turbulent superfluid vortex density fluctuations and obtain the same Kolmogorov scaling which has been observed in a recent experiment in Helium-4.
A. W. Baggaley +3 more
core +1 more source
A Meshfree Solver for the MEG Forward Problem [PDF]
, 2015 Noninvasive estimation of brain activity via magnetoencephalography (MEG) involves an inverse problem whose solution requires an accurate and fast forward solver. To this end, we propose the Method of Fundamental Solutions (MFS) as a meshfree alternative
ALA, Guido +4 more
core +1 more source
Regularized Biot–Savart Laws for Modeling Magnetic Flux Ropes [PDF]
, 2017 Many existing models assume that magnetic flux ropes play a key role in solar flares and coronal mass ejections (CMEs). It is therefore important to develop efficient methods for constructing flux-rope configurations constrained by observed magnetic data
V. Titov +5 more
semanticscholar +1 more source
High Voltage, Volume 9, Issue 4, Page 826-838, August 2024.Abstract Accurate calculation of short‐circuit electromagnetic force is crucial for both mechanical strength check and the optimal design of gas‐insulated transmission lines (GIL). Since the full 3D numerical simulation method is highly time‐consuming, a novel lightweight 2D multi‐slice electromagnetic field‐circuit coupled method for computing ...
Shucan Cheng +3 more
wiley +1 more source