Results 61 to 70 of about 1,143,317 (271)
Evolutionary equations and constraints: Maxwell equations [PDF]
Journal of Mathematical Physics, 2019 By fixing a reference frame in spacetime, it is possible to split the Euler-Lagrange equations associated with a degenerate Lagrangian into purely evolutionary equations and constraints on the allowed Cauchy data with respect to the notion of space and time associated with the given reference frame.
F. M. Ciaglia +3 more
openaire +3 more sources
Efficient in‐Plane Exciton Transport in a Discontinuous Layered Lead‐Bromide Perovskite
Advanced Materials, EarlyView.A new class of two‐dimensional lead‐bromide perovskite based on monovalent 4‐aminomethylbenzoic acid cations is presented, featuring a discontinuous inorganic layer. Despite the discontinuous lattice, transient photoluminescence microscopy demonstrates efficient though strongly anisotropic in‐plane exciton transport.
Raquel Utrera‐Melero +9 more
wiley +1 more source
An Entropy Dynamics Approach to Inferring Fractal-Order Complexity in the Electromagnetics of Solids
EntropyA fractal-order entropy dynamics model is developed to create a modified form of Maxwell’s time-dependent electromagnetic equations. The approach uses an information-theoretic method by combining Shannon’s entropy with fractional moment constraints in ...
Basanta R. Pahari, William Oates
doaj +1 more source
, 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
core +1 more source
Recent Advances of Slip Sensors for Smart Robotics
Advanced Materials Technologies, EarlyView.This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang +8 more
wiley +1 more source
Maximizing the symmetry of Maxwell’s equations
Frontiers in PhysicsMaxwell’s equations can be successfully extended to electromagnetic fields having three complex-valued components rather than their usual three real-valued components.
James A. Reggia
doaj +1 more source
Maxwell’s equations in the Myers-Perry geometry
Journal of High Energy Physics, 2017 We demonstrate separability of the Maxwell’s equations in the Myers-Perry-(A)dS geometry and derive explicit solutions for various polarizations. Application of our construction to the four-dimensional Kerr black hole leads to a new ansatz for the ...
Oleg Lunin
doaj +1 more source
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
core +1 more source
Advanced Materials Technologies, EarlyView.A constraint‐based analytical framework maps the coupled effects of material properties, structural parameters, and operating conditions in tubular dielectric elastomer pumps for extracorporeal circulatory applications. The approach defines performance boundaries through mechanical, electrical, and hydraulic constraints and identifies feasible design ...
Yan Zhang +3 more
wiley +1 more source
MathematicsIn this paper, we address the approximation of the coupling problem for the wave equation and Maxwell’s equations of electromagnetism in the time domain in terms of electric field by means of a nodal linear finite element discretization in space ...
Larisa Beilina, Vitoriano Ruas
doaj +1 more source