Results 61 to 70 of about 2,204 (172)

Quantifying Nighttime Gravity Wave‐Driven Mesosphere‐Ionosphere Coupling Over CONUS Using NASA AWE Radiance and GNSS TEC Observations

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary, Xian Lu   +1 more
wiley   +1 more source

Ultra‐Weak Photon Emission as a By‐Product of Mitochondrial Oxidative Metabolism: Mechanisms, Limits, and Implications

Nanophotonics, Volume 15, Issue 20, 27 October 2026.
Mitochondrial oxidative metabolism generates ROS. Downstream chemiexcitation triplet carbonyls, singlet oxygen; produces ultra‐weak photon emission (UPE). Energetic bounds restrict well‐coupled respiration to extremely weak, red/NIR‐biased emission. Stronger visible UPE indicates elevated oxidative flux, linking measured photon counts to redox state ...
Samuel Crowther, Alice Attenborough, Frank Vollmer   +2 more
wiley   +1 more source

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

European 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, José A. Helayël-Neto, Alessandro D. A. M. Spallicci   +2 more
doaj   +1 more source

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

Science 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

Spin Three-Body Problem of Classical Electrodynamics with Radiation Terms (I) Derivation of Spin Equations

Results in Nonlinear Analysis, 2021
In the present paper spin equations for three-body problem of classical electrodynamics are introduced. They should be considered jointly with 3-body equations of motion derived in a previous paper of the author.
Vasil G. Angelov
doaj  

Classical Electrodynamics

, 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

Exploring light propagation in nonlinear electrodynamics: phase and group velocities and related phenomena

European Physical Journal C: Particles and Fields
Nonlinear electrodynamics has been an important area of research for a long time. Investigations based on nonlinear Lagrangians, such as Euler–Heisenberg and Born–Infeld, are instrumental in exploring the limits of classical and quantum field theories ...
T. W. Cruz, V. A. De Lorenci, E. Guzmán-Herrera, C. C. H. Ribeiro   +3 more
doaj   +1 more source

Stability and thermodynamic topology of logarithmic nonlinear electrodynamics black holes with exponential entropy corrections

Physics Letters B
We investigate the thermodynamic stability and phase structure of black holes in logarithmic nonlinear electrodynamics (LNED) with non-perturbative exponential corrections to the Bekenstein–Hawking entropy.
Aram Bahroz Brzo, Peshwaz Abdulkareem Abdoul, Behnam Pourhassan   +2 more
doaj   +1 more source

Transverse recoil imprinted on free-electron radiation

Nature Communications
Phenomena of free-electron X-ray radiation are treated almost exclusively with classical electrodynamics, despite the intrinsic interaction being that of quantum electrodynamics. The lack of quantumness arises from the vast disparity between the electron
Xihang Shi, Lee Wei Wesley Wong, Sunchao Huang, Liang Jie Wong, Ido Kaminer   +4 more
doaj   +1 more source

The Electromagnetic Three-Body Problem With Radiation Terms - Derivation of Equations of Motion (I)

Results in Nonlinear Analysis, 2020
The primary purpose of the present paper is to continue the previous investigations of the author and apply the technique from the two-body problem of classical electrodynamics to the three-body problem.
Vasil G. Angelov
doaj