Results 241 to 250 of about 172,007 (293)

Polymeric nanocomposites for electromagnetic wave absorption

Journal of Materials Science, 2009
The need for protecting human or devices from harm and for keeping something from being detected by other instruments is spawning a world of attention in the development of novel electromagnetic (EM) wave absorption materials. An ideal EM wave absorber is necessary to have light weight, thin thickness, high EM wave absorption, broad width, tunable ...
Jia Huo, Li Wang, Haojie Yu
openaire   +1 more source

Electromagnetic Wave Absorption in Liquid HEII

2007 17th International Crimean Conference - Microwave & Telecommunication Technology, 2007
The problem of possible correlation between macroscopical mechanical motion in HeII and its electrical properties is not studied practically till now. The attempt was made to determine the connection between mechanical relative motion of normal and superfluid components of HeII and its electrical performances using disk dielectric resonator (DDR ...
V. N. Derkach, S. I. Tarapov, R. V. Golovashchenko, E. Ya. Rudavskii, S. P. Rubets, A. S. Rybalko   +5 more
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Absorption of electromagnetic waves by graphene

Physics of Wave Phenomena, 2013
The power of the circularly polarized electromagnetic wave absorbed by graphene is calculated using the Boltzmann kinetic equation written in the relaxation approximation and the numerical Monte Carlo simulation. It is shown that in the limit of large radiation amplitudes the power absorbed by graphene is directly proportional to the amplitude ...
S. V. Kryuchkov, E. I. Kukhar’, D. V. Zav’yalov   +2 more
openaire   +1 more source

PVDF-Graphene Nanocomposite Coatings for Electromagnetic Wave Absorption

2019 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity (EMC+SIPI), 2019
The feasibility of Polyvinylidene fluoride (PVDF)-graphene nanocomposite coatings for radar absorption is investigated. To this purpose, a production process of PVDF coatings filled with graphene nanoplatelets has been developed. All the produced samples were characterized in terms of morphological, electrical and electromagnetic properties.
D'Aloia A. G., Hossein Cheraghi Bidsorkhi., Tamburrano A., De Bellis G., Sarto M. S.   +4 more
openaire   +2 more sources

Electromagnetic-wave absorption in highly collisional plasmas

Journal of Applied Physics, 1993
An experimental and theoretical investigation of basic plasma-physics processes relating to the absorption of electromagnetic waves in collisional plasmas is described. One-way absorption of 63 dB at 4 GHz was demonstrated in a section of plasma-loaded rectangular C-band waveguide.
Joseph Santoru, Daniel J. Gregoire
openaire   +1 more source

Absorption of electromagnetic waves in hexagonal perovskites

Soviet Journal of Low Temperature Physics, 1988
It is shown that the linear magnetoelectric effect of exchange type in exchange-noncollinear magnets may cause a direct absorption of electromagnetic field by the exchange branches of the magnon spectrum.
V. G. Belykh, I. M. Vitebskii, V. L. Sobolev, T. K. Soboleva   +3 more
openaire   +1 more source

Absorption of Electromagnetic Waves in Molecular Crystals

Physical Review B, 1970
The absorption of electromagnetic waves in molecular crystals at low temperature has been studied using the Green's-function method. The spin dependence of the excitations created by photon absorption has been explicitly considered. In the Hartree-Fock (HF) approximation and in the absence of the radiation field, the poles of the exciton Green's ...
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Absorption of spin from an electromagnetic wave

Optik, 2018
Abstract We demonstrate the transfer of momentum, energy, and spin from a plane circularly polarized electromagnetic wave into an absorber. Lorentz transformations are used for the flux densities because a moving absorber is considered. The given calculations show that spin is the same natural property of a plane electromagnetic wave, as energy and ...
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The Dispersion and Absorption of Electromagnetic Waves

1958
The topic to be reviewed in this article is the experimental study of the behaviour of matter under the action of the electromagnetic fields encountered in the electrical portion of the spectrum, that is to say, in waves of all wavelengths greater than a few millimetres.
L. Hartshorn, J. A. Saxton
openaire   +1 more source

Electromagnetic Wave Absorption Polymer Nanocomposites

2022
Rong Zhao, Guang-lin Zhao
openaire   +1 more source