Results 31 to 40 of about 947 (99)
Conservation of geometric structures for non-homogeneous inviscid incompressible fluids [PDF]
, 2012 We obtain a result about propagation of geometric properties for solutions of the non-homogeneous incompressible Euler system in any dimension $N\geq2$.
Francesco Fanelli, Université Paris-est
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
Trkalian fields and Radon transformation
, 2010 We write the spherical curl transformation for Trkalian fields using differential forms. Then we consider Radon transform of these fields. The Radon transform of a Trkalian field satisfies a corresponding eigenvalue equation on a sphere in transform ...
Bellan +9 more
core +1 more source
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
On spatially-averaged electrokinetics of point charges and Maxwell's equations [PDF]
, 2017 Maxwell-like field relations which describe spatially-averaged kinematic behaviour of electrons and atomic nuclei (modelled as point charges) are obtained at any prescribed scale using weighting function methodology.
Murdoch, A. Ian
core +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
Space Weather, Volume 22, Issue 4, April 2024.Abstract We introduce a new framework called Machine Learning (ML) based Auroral Ionospheric electrodynamics Model (ML‐AIM). ML‐AIM solves a current continuity equation by utilizing the ML model of Field Aligned Currents of Kunduri et al. (2020, https://doi.org/10.1029/2020JA027908), the FAC‐derived auroral conductance model of Robinson et al.
V. Sai Gowtam +10 more
wiley +1 more source
, 2010 We develop a McKean-Vlasov interpretation of Navier-Stokes equations with external force field in the whole space, by associating with local mild $L^p$-solutions of the 3d-vortex equation a generalized nonlinear diffusion with random space-time birth ...
Fontbona, J.
core +1 more source
Intracycle RPM control for vertical axis wind turbines
Wind Energy, Volume 27, Issue 3, Page 202-224, March 2024.Abstract The wind energy market is currently dominated by horizontal axis wind turbines (HAWTs); however, vertical axis wind turbines (VAWTs) are emerging as a design alternative, especially for deep‐water offshore siting due to their low center of gravity, ease of access to drivetrain components, and overall simplicity.
Mohammad Sadman Sakib +4 more
wiley +1 more source