Results 71 to 80 of about 5,594 (190)

Field of MPFS: the calculation on the basis of integral relations

Физика волновых процессов и радиотехнические системы, 2013
The magnetic periodic focusing system (MPFS) in the form of the ring of permanent magnets and ring tips has been considered for TWT. The integrodifferential equations of magnetostatic problem for magnetic field and the electrical vector-potential for ...
N.A. Bushuev, M.V. Davidovich, E.Yu. Altshuler   +2 more
doaj  

A Novel Variational Principle in Electrostatics and its Consequences

, 2013
We propose a novel variational principle in electrostatics and show that one can derive mirror equation in the context of image problem starting from this principle.
Bhattacharya, Kolahal
core   +1 more source

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

Advanced Functional Materials, Volume 36, Issue 26, 30 March 2026.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis, Andrea Cosola, Pierre Bourdon, Hichem Dammak, Marco Sangermano, Frédéric Demoly, Marco Faustini, Amélie Pérot, Didier Lairez, Rakine Mouhoubi, Sébastien Blanquer, Giancarlo Rizza   +11 more
wiley   +1 more source

The Actuator Design and the Experimental Tests of a New Technology Large Deformable Mirror for Visible Wavelengths Adaptive Optics

, 2012
Recently, Adaptive Secondary Mirrors showed excellent on-sky results in the Near Infrared wavelengths. They currently provide 30mm inter-actuator spacing and about 1 kHz bandwidth.
Agapito, Guido, Arcidiacono, Carmelo, Biliotti, Valdemaro, Carbonaro, Luca, De Santis, Enzo, Del Vecchio, Ciro, Marignetti, Fabrizio, Riccardi, Armando   +7 more
core   +1 more source

Analysis of Magnetic Switching in Magnetically Coupled Dual Free Layers Within Magnetic Tunnel Junctions (MTJ) for STT MRAM

Advanced Electronic Materials, Volume 12, Issue 5, 9 March 2026.
A magnetic tunnel junction (MTJ) with two free layers shows four magnetization reversal phases governed by interlayer magnetic coupling (Jcpl). Phase 2 (sequential reversal) reduces write current (Iw) by 50% for 30‐nm‐diameter MTJs compared to Phase 4 (coherent reversal), while Jcpl also boosts thermal stability.
Shujun Ye, Koichi Nishioka
wiley   +1 more source

A hybrid method BEM-NRM for magnetostatics problems

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This article proposes a new method to solve non-linear magnetostatic problems applied to the modeling of electromagnetic devices. A reduced scalar potential formulation is presented and solved by a hybrid BEM-NRM.
D. Martins Araujo, J-L. Coulomb, B. Delinchant, O. Chadebec   +3 more
doaj   +1 more source

Simple analysis of off-axis solenoid fields using the scalar magnetostatic potential: application to a Zeeman-slower for cold atoms

, 2012
In a region free of currents, magnetostatics can be described by the Laplace equation of a scalar magnetic potential, and one can apply the same methods commonly used in electrostatics. Here we show how to calculate the general vector field inside a real
Griffiths D. J., Heald M. A., Jackson J. D., M. Bhattacharya, Sérgio R. Muniz, Vanderlei S. Bagnato   +5 more
core   +1 more source

Configuration Optimization Design of Magnetic Circuit for Large Magnetostrictive Devices Based on TbDyFe Alloy

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Reliable operation of high‐performance magnetostrictive devices, composed of the giant magnetostrictive material (GMM), that is, the TbDyFe alloy, critically depends on an optimally tailored bias magnetic field. Sufficient intensity and uniformity are essential to induce the ideal initial strain in the GMM, enabling peak reciprocating output ...
Jinan Yu, Yusheng Wen, Ziwei Feng, Yongbo Guo, Zhihao Zhang, Yu Qiao, Yangkun He, Shizhong An, Dazhuang Kang, Tianli Zhang, Jinghua Liu, Chengbao Jiang, J. M. D. Coey   +12 more
wiley   +1 more source

Uniform Poincaré inequalities for the Discrete de Rham complex on general domains

Results in Applied Mathematics
In this paper we prove Poincaré inequalities for the Discrete de Rham (DDR) sequence on a general connected polyhedral domain Ω of R3. We unify the ideas behind the inequalities for all three operators in the sequence, deriving new proofs for the ...
Daniele A. Di Pietro, Marien-Lorenzo Hanot   +1 more
doaj   +1 more source

Application of Collocation BEM for Axisymmetric Transmission Problems in Electro- and Magnetostatics

Mathematical Modelling and Analysis, 2016
This paper considers the numerical solution of boundary integral equations for an exterior transmission problem in a three-dimensional axisymmetric domain.
Olga Lavrova, Viktor Polevikov
doaj   +1 more source