نتایج جستجو برای: surface electromagnetic wave

تعداد نتایج: 887414  

2005
X. Jin B. Luke J. Louie

Three widely-available surface wave measurement techniques, including two active-source methods, the Spectral Analysis of Surface Waves (SASW) method and the Multi-channel Analysis of Surface Waves (MASW) method, and one passive-source method, the Refraction Microtremor (ReMi) method, were applied at a complex-layered site. Dispersion relations were compared to one another. Outcomes from the MA...

2016
T. Gric M. Cada J. Pistora

Herein we study propagation of surface waves at a boundary of an isotropic media and a multilayered hyperbolic metamaterial. The structure dispersion is discussed for various cases of a hyperbolic metamaterial. It is demonstrated that it is possible to tune the frequency range of surface waves by varying the thickness of dielectric sheets. It is also shown that this frequency range can be broad...

Journal: :Science advances 2016
Marie-Christine Dheur Eloïse Devaux Thomas W Ebbesen Alexandre Baron Jean-Claude Rodier Jean-Paul Hugonin Philippe Lalanne Jean-Jacques Greffet Gaétan Messin François Marquier

Surface plasmon polaritons are electromagnetic waves coupled to collective electron oscillations propagating along metal-dielectric interfaces, exhibiting a bosonic character. Recent experiments involving surface plasmons guided by wires or stripes allowed the reproduction of quantum optics effects, such as antibunching with a single surface plasmon state, coalescence with a two-plasmon state, ...

2016
Robert A. Schill

A simple heuristic model is developed to examine the feasibility of using radiation pressure as a means to transport plasma dust out of the path of the forthcoming electron or photon beam. A slow electromagnetic surface wave coupled to a planar target or substrate exerts the required pressure in the removal process. The model is examined using data and parameters from single-shot radiography ex...

Hasan Jahangiri, Pourya Mehdizadeh

To prevent serious electromagnetic interference, a single-layer and double layer wave-absorbing coating employing complex absorbents composed of carbon black with epoxy resin as matrix was prepared. The morphologies of carbon black /epoxy composites were characterized by scanning electron microscope  and atomic force microscope, respectively. The carbon black  particles exhibit obvious polyarom...

2014
Quan WANG Liquan LI Jin JIANG Ataul BARI Changjian DENG Dongyi CHEN

Deployment of wireless systems in nuclear power plants has attracted a lot of attention recently. However, before wireless systems can be installed in a nuclear power plant, it is necessary to evaluate the effect of radiation environment on electromagnetic wave which is the communication media for all radio wave based wireless systems. This is particular important if the wireless systems are ex...

2003
D. Sievenpiper L. Zhang R. Broas E. Yablonovitch

A new type of metallic electromagnetic structure has been developed that is characterized by having high surface impedance. The geometry is analogous to a corrugated metal surface in which the corrugations have been folded up into lumped circuit elements, and distributed in a 2-D lattice. Although it is made of continuous metal, and conducts DC currents, it does not conduct AC currents within a...

Journal: :international journal of reproductive biomedicine 0
masoumeh abad hossein malekafzali masoumeh simbar hassan seyed mosaavi effat merghati khoei

background: health-related quality of life is affected by electromagnetic field exposure in each person everyday life. however, this is extremely controversial issue. objective: investigation of the associations between electromagnetic field exposure and miscarriage among women of tehran. materials and methods: in this longitudinal study, 462 pregnant women with gestational age <12 wks from sev...

2015
Runwen Xu Lixin Guo Qiang Wang Wei Liu

Two-dimensional (2D) electromagnetic scattering from a target above the sea with breaking water wave is studied by a multiregional iterative analytical-numerical method that combines the boundary integral method (BIM) and the Kirchhoff approximation (KA). Based on the “PiersonMoskowitz” (PM) sea surface and the LONGTANK breaking wave, a theoretical model of a target above the rough sea surface ...

Journal: :international journal of mathematical modelling and computations 0
a. k. dhar joydev mondal iiest,westbengal,india india iiest,mathematics,shibpur,westbengal, india

asymptotically exact and nonlocal third order nonlinear evolution equations are derivedfor two counterpropagating surface capillary gravity wave packets in deep water in thepresence of wind flowing over water.from these evolution equations stability analysis ismade for a uniform standing surface capillary gravity wave trains for longitudinal perturbation. instability condition is obtained and g...

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