scholarly journals APPLICATION OF THE RANDOM COUPLING MODEL TO ELECTROMAGNETIC COUPLING EFFECT ANALYSIS OF COMPLEX DOUBLE CAVITY

2017 ◽  
Vol 65 ◽  
pp. 81-87 ◽  
Author(s):  
Jie-Qing Fan ◽  
Ying Pan ◽  
Jian-Hong Hao ◽  
Heng-You Zhang
Keyword(s):  
Coupling Effect ◽  
Electromagnetic Coupling ◽  
Coupling Model ◽  
Effect Analysis ◽  
Random Coupling

Random coupling model for molecular dissociation

1974 ◽  
Vol 61 (3) ◽  
pp. 936-946 ◽  
Author(s):  
Eric J. Heller ◽  
Stuart A. Rice
Keyword(s):  
Coupling Model ◽  
Molecular Dissociation ◽  
Random Coupling

An Experimental Investigation of Sample–Fluid Heat Coupling Effect in Thermal Lens Technique

2020 ◽  
Vol 74 (10) ◽  
pp. 1274-1279
Author(s):  
Gustavo V.B. Lukasievicz ◽  
Leandro S. Herculano ◽  
Elizandra Sehn ◽  
Marcos P. Belançon ◽  
Stephen E. Bialkowski ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Thermal Lens ◽  
Coupling Effect ◽  
Coupling Model ◽  
Theoretical Description ◽  
Photothermal Effect ◽  
Wavefront Distortion ◽  
Absorbing Materials ◽  
Heated Area ◽  
Long Rod

Laser-induced wavefront distortion is detectable by several techniques based on the photothermal effect. The effect is probed by monitoring the phase shift caused by the bulging of the heated area, the photoelastic effects, and the spatial distribution of the refractive index within the sample and in the fluid surrounding it. A simple analytical solution for the wavefront distortion was only possible for low absorbing materials, with the assumption that the stresses obey either the thin-disk or the long-rod type distributions. Recently, a unified theoretical description for the laser-induced optical path change was proposed to overcome part of this limitation for weakly absorbing materials, regardless of its thickness. In this work, we perform an experimental investigation taking the sample–fluid heat coupling effect into account using the thermal lens technique. The experimental investigation presented here validates the unified model. In addition, we show that the heat-coupling model provides an alternative method to obtain physical properties of non-absorbing fluid by using a reference solid sample.

Random coupling model for the radiation of statistical sources inside cavities

2016 ◽  
Author(s):  
Gabriele Gradoni ◽  
Thomas M. Antonsen ◽  
Ed Ott ◽  
Steven M. Anlage
Keyword(s):  
Coupling Model ◽  
Random Coupling

A Mathematical Thermal Hydraulic-Mechanical Coupling Model for Unsaturated Porous Media

2014 ◽  
Vol 602-605 ◽  
pp. 365-369
Author(s):  
Jun Yan ◽  
Yin Qi Wei ◽  
Hong Cai
Keyword(s):  
Porous Media ◽  
Solid Mechanics ◽  
Coupling Effect ◽  
Coupling Model ◽  
Unsaturated Porous Media ◽  
Liquid Pressure ◽  
Mechanical Coupling ◽  
The Earth ◽  
Highly Nonlinear ◽  
Pore Liquid

s: Temperature, seepage and deformation are the important parts of the engineering geological mechanics both in water conservancy and hydropower engineering since there are highly nonlinear complex coupling effect between each other. In this paper, the earth and rock mass are classified as continuous porous media. The thermal constitutive relation of porous media and motion regularity of pore fluid are deduced from the basic theory of solid mechanics, hydraulics, and thermodynamics. Based on momentum, mass and energy conservation equations, the multi-field controlling equations of unsaturated porous media are given, in which the unknown variables include displacements, pore liquid pressure, pore gas pressure, temperature, and porosity.

scholarly journals Design of Microstrip Patch Antenna with Enhanced Bandwidth and Harmonic Suppression for Wlan Applications

2020 ◽  
Vol 8 (5) ◽  
pp. 1642-1645
Keyword(s):  
High Frequency ◽  
Coupling Effect ◽  
Electromagnetic Coupling ◽  
Microstrip Patch Antenna ◽  
Simulation Software ◽  
Network Analyzer ◽  
Harmonic Suppression ◽  
Microstrip Patch ◽  
Rectangular Patch ◽  
Shorting Pin

A parallel combination of pair of λ/4 Resonator and the rectangular patch has enhanced the bandwidth and suppressed the unwanted harmonic radiations of the proposed antenna. Due to electromagnetic coupling effect, the pair of λ/4 resonator excites the radiating patch. Both λ/4 resonator and resonating patch excites at two different frequencies which are close to each other and this helps to increase the bandwidth of a proposed antenna. Also a shorting pin is used between the two λ/4 resonators which suppress the unwanted harmonic radiations. Design of a proposed antenna is done using the HFSS (High Frequency Simulation software). The Hardware results are observed on VNA (Virtual Network Analyzer).The operating frequency 3.6GHz.The proposed antenna is used in WLAN applicatio

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