Results 1 to 10 of about 39,144 (147)

Interrogating imaginary optical force by the complex Maxwell stress tensor theorem [PDF]

Light: Science & Applications, 2023
The complex Maxwell stress tensor theorem has been developed to relate the imaginary optical force, reactive strength of canonical momentum and total optical force of a nanoparticle, which is essential to perfect optical force efficiency.
Jinwei Zeng, Jian Wang
doaj   +2 more sources

The complex Maxwell stress tensor theorem: The imaginary stress tensor and the reactive strength of orbital momentum. A novel scenery underlying electromagnetic optical forces [PDF]

Light: Science & Applications, 2022
The imaginary Maxwell stress tensor IMST and the reactive strength of orbital momentum ROM are established. It is shown that they universally produce reactive electromagnetic forces ILFs that counteract all currently observed time-averaged optical forces
Manuel Nieto-Vesperinas, Xiaohao Xu
doaj   +2 more sources

Numerical modelling of nonlinear electromechanical coupling of an atomic force microscope with finite element method [PDF]

Advances in Radio Science, 2010
In this contribution, an atomic force microscope is modelled and in this context, a non-linear coupled 3-D-boundary value problem is solved numerically using the finite element method.
J. Freitag, W. Mathis
doaj   +4 more sources

Compact objects in conformal nonlinear electrodynamics

European Physical Journal C: Particles and Fields, 2019
In this paper we consider a special case of vacuum nonlinear electrodynamics with a stress–energy tensor conformal to the Maxwell theory. Distinctive features of this model are the absence of a dimensional parameter for the nonlinearity description and a
I. P. Denisova, B. D. Garmaev, V. A. Sokolov   +2 more
doaj   +3 more sources

Research on magnetic nonchain transport of steel cartridge casing ammunition [PDF]

Scientific Reports
Magnetic force is used to drive ferromagnetic objects by shortening the magnetic flux path to reduce magnetic reluctance and increase magnetic conductivity.
Jinyu Kang, Yongjuan Wang
doaj   +2 more sources

Dynamics of the optical forces in nanosystems [PDF]

EPJ Web of Conferences, 2022
We investigate optical forces in the time domain, instead of using the time-average Maxwell stress tensor. We demonstrate first that a plane wave causes on a physical object an optical pressure that fluctuates at optical frequency in the time domain. The
Kiselev Andrei, Achouri Karim, Martin Olivier J. F.   +2 more
doaj   +1 more source

The force density in electrical machines modeled as tension and pressure gradients of magnetic field lines

AIP Advances, 2023
This paper shows how to model the force density in electrical machines based on the field lines of the magnetic flux density. The force density is written as two vector components: the magnetic tension force and the magnetic pressure gradient force. This
G. Mörée, M. Leijon
doaj   +1 more source

A generalized stress correction scheme for the Maxwell elasto-brittle rheology: impact on the fracture angles and deformations [PDF]

The Cryosphere, 2021
The Maxwell elasto-brittle (MEB) rheology uses a damage parameterization to represent the brittle fracture of sea ice without involving plastic laws to constrain the sea ice deformations.
M. Plante, L. B. Tremblay
doaj   +1 more source

New symmetry for the imperfect fluid

European Physical Journal C: Particles and Fields, 2020
We will address the existence of a new symmetry for an imperfect fluid by introducing local four-velocity gauge-like transformations for the case when there is vorticity.
Alcides Garat
doaj   +1 more source

Gravitational Superenergy Tensor [PDF]

, 1996
We provide a physical basis for the local gravitational superenergy tensor. Furthermore, our gravitoelectromagnetic deduction of the Bel-Debever-Robinson superenergy tensor permits the identification of the gravitational stress-energy tensor.
Mashhoon, Bahram, McClune, James C., Quevedo, Hernando   +2 more
core   +2 more sources