Results 81 to 90 of about 58,163 (177)

Jamming and Rheology of Fluidized Beds of Magnetized Particles

Applied Rheology, 2011
The interaction between magnetic particles in a bed fluidized by a gas is determined by the magnetizing action of an externally applied magnetic field.
Valverde J.M., Espin M.J., Quintanilla M.A.S.   +2 more
doaj   +1 more source

Space-Time Structure and Electromagnetism

, 2005
Two Lagrangian functions are used to construct geometric field theories. One of these Lagrangians depends on the curvature of space, while the other depends on curvature and torsion. It is shown that the theory constructed from the first Lagrangian gives
Adler R., M. I. WANAS, Mikhail F. I., SAMAH. A. AMMAR, Wanas M. I., Wanas M. I.   +5 more
core   +1 more source

Acousto-electromagnetic Tomography

SIAM Journal on Applied Mathematics, 2012
The aim of this paper is to develop a mathematical framework for acousto-electromagnetic tomography and to introduce an efficient reconstruction algorithm. In electromagnetic wave imaging, the resolution is limited by the Rayleigh criterion, that is, half the operating wavelength.
Ammari, H., Bossy, E., Garnier, Josselin, Seppecher, L.   +3 more
openaire   +2 more sources

Extending General Covariance: A Unified Framework for Electromagnetic Interactions and Geometric Unification

Advances in Mathematical Physics
This paper develops a geometrically symmetric framework that unifies gravity and electromagnetism by extending general covariance to incorporate electromagnetic interactions through an "electromagnetic tetrad." These tetrads, constructed from the ...
Xiulin Huang, Yan Xu
doaj   +1 more source

Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits

IEEE Open Journal of Antennas and Propagation
In this paper the authors describe the design of a broadband aperture-stacked patch (ASP) microstrip antenna based on a filtering equivalent circuit.
Ignacio M. Delgado-Lozano, Rafael R. Boix, Vicente Losada, Armando Fernandez-Prieto   +3 more
doaj   +1 more source

Maxwell-Lorentz Dynamics of Rigid Charges

, 2010
We establish global existence and uniqueness of the dynamics of classical electromagnetism with extended, rigid charges and fields which need not to be square integrable.
Bauer, G., Deckert, D. -A., Dürr, D.
core  

Statistical Analysis of the Warm Plasma Cloak in the Dayside Magnetosphere: 9 Years of MMS Observations

Geophysical Research Letters
The warm plasma cloak (WPC) is a plasma population located in the outer magnetosphere. It is composed primarily of electrons and H+ ions with energies of tens to hundreds electronvolts and can contain significant amounts of O+.
Victor Montagud‐Camps, Sergio Toledo‐Redondo, Jerry Goldstein, Stephen A. Fuselier, Mats André, Inmaculada F. Albert, Aida Castilla, Alfonso Salinas, Jorge Portí, Enrique A. Navarro   +9 more
doaj   +1 more source

Research of Application of Transform Domain Communication System in Coal Mine Underground

Gong-kuang zidonghua, 2011
For complex electromagnetism environment in coal mine underground and poor anti-interference ability of existing mine-used wireless communication systems, the paper analyzed feasibility of application of transform domain communication system in coal mine
NI Shui-ping, DENG Li-heng
doaj  

Integrated Fabry–Perot Cavities: A Quantum Leap in Technology

Encyclopedia
Integrated Fabry–Perot cavities (IFPCs), often referred to as nanobeams due to their form factor and size, have profoundly modified the landscape of integrated photonics as a new building block for classical and quantum engineering.
Philippe Velha
doaj   +1 more source

Dual‐Backbone Feature Fusion for Few‐Shot Specific Emitter Identification Under Class Imbalance

IET Radar, Sonar & Navigation
This paper proposes a dual‐backbone feature fusion approach to address the few‐shot class imbalance problem in specific emitter identification. First, employ the Weighted Random Sampler algorithm to dynamically calculate sampling weights for data ...
Dian Lv, Zhiyong Yu, Hao Zhang, Jiawei Xie   +3 more
doaj   +1 more source