Results 81 to 90 of about 1,217,344 (207)

General Classical Electrodynamics [PDF]

open access: yes, 2016
Maxwell’s Classical Electrodynamics (MCED) suffers several inconsistencies: (1) the Lorentz force law of MCED violates Newton’s Third Law of Motion (N3LM) in case of stationary and divergent or convergent current distributions; (2) the general Jefimenko ...
van Vlaenderen, Koenraad Johan
core   +5 more sources

Classical Electrodynamics

open access: yes, 2000
Excerpts are presented from a graduate course on Classical Electrodynamics held during the spring semester of 2000 at the Institute of Physics, Guanajuato State University ...
openaire   +2 more sources

Earthward Transport of Lunar Metallic Ions: Implications of Heavy Ions in the Magnetosphere

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Low‐charge‐state heavy ions in Earth's magnetosphere were thought to originate from the ionosphere. However, Observations from the Geotail mission have detected the presence of singly charged metallic ions, such as Fe+ ${\mathrm{F}\mathrm{e}}^{+}$, whose abundances vary depending on the Moon's location, alongside their density ratios to O ...
Mei‐Yun Lin, Andrew R. Poppe
wiley   +1 more source

Impacts of Neutral Wind‐Driven Currents on Geomagnetic Disturbances and Magnetospheric Dynamics During the May 2024 Storm

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The neutral wind dynamo generates ionospheric currents that can significantly affect high‐latitude electrodynamics during geomagnetic storms, yet its role in global magnetosphere‐ionosphere coupling is often underrepresented. We quantify the impact of wind‐driven currents on geomagnetic disturbances (GMDs) and magnetospheric dynamics during ...
Yu Hong   +4 more
wiley   +1 more source

Assessment of MR‐Induced Heating Effects in Four Common Veterinary Implants at 1.5 and 3.0 T: A Phantom Study

open access: yesVeterinary Radiology &Ultrasound, Volume 67, Issue 5, September 2026.
ABSTRACT Quantitative evaluation of implant‐related heating in magnetic resonance imaging (MRI) is well standardized in human medicine, whereas evidence in veterinary medicine remains scarce. To address this gap, we measured radiofrequency (RF)‐induced heating of four used veterinary implants under controlled conditions on clinical 3.0 and 1.5 T MRI ...
Manabu Kurihara   +3 more
wiley   +1 more source

The Dirac equation, the concept of quanta, and the description of interactions in quantum electrodynamics [PDF]

open access: yes, 2010
In this article the Dirac equation is used as a guideline to the historical emergence of the concept of quanta, associated with the quantum field.
bacelar valente, mario
core  

Bifurcations in Single Atom Cavity QED [PDF]

open access: yes, 2009
Current research in single-atom cavity quantum electrodynamics largely emphasizes the input-output properties of strongly coupled systems, from normal mode splitting to photon blockade.
Armen, Michael A.
core   +1 more source

Advanced Classical Electrodynamics

open access: yes, 2017
This textbook introduces advanced classical electrodynamics using modern mathematical techniques, with an emphasis on physical concepts. Connections to field theory and general relativity are highlighted while the book still serves as the basis for a one-
Ulrich D Jentschura   +1 more
core   +1 more source

Generalised non-linear electrodynamics: classical picture and effective mass generation

open access: yesEuropean Physical Journal C: Particles and Fields
Starting from a generic Lagrangian, we discuss the number of propagating degrees of freedom in the framework of generalised non-linear electrodynamics when a photon-background split is applied.
Abedennour Dib   +2 more
doaj   +1 more source

A relativistic approach to teaching electrodynamics: Deriving Maxwell's equations from first principles

open access: yesScience Education Quarterly
This paper presents a novel methodology for teaching classical electrodynamics based on special relativity theory. Traditional approaches often rely heavily on empirical laws, potentially obscuring the fundamental unity of electromagnetic phenomena.
Oleksandr A. Konoval
doaj   +1 more source

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