scholarly journals QUASI-STATIC COMPLEX IMAGE METHOD FOR A CURRENT POINT SOURCE IN HORIZONTALLY STRATIFIED MULTILAYERED EARTH

2011 ◽  
Vol 34 ◽  
pp. 187-204 ◽  
Author(s):  
Zhong Xin Li ◽  
Guang-Fan Li ◽  
Jian-Bin Fan ◽  
Yu Yin
Keyword(s):  
Point Source ◽  
Image Method ◽  
Complex Image ◽  
Current Point ◽  
A Current

Influence of Power Supply Current in Electrical Landfill Leakage Detection Method

2010 ◽  
Vol 29-32 ◽  
pp. 2686-2691
Author(s):  
Shao Peng Guan ◽  
Yu Ling Wang ◽  
Chang Xin Nai ◽  
Jing Cai Liu
Keyword(s):  
Point Source ◽  
Power Supply ◽  
Electrical Current ◽  
Source Model ◽  
Electrical Method ◽  
Current Point ◽  
Supply Current ◽  
Geomembrane Liners ◽  
Set Up ◽  
A Current

The electrical method is effective on detecting and locating leaks in geomembrane liners for landfills. If a leak exists in the liner, an anomaly in the measured potential is generated in the immediate vicinity of the leak through which electrical current is flowing. But the power supply current above the liner can affect the potential distribution. A current point source model for power supply current was set up in this paper. The potential equation induced by the point source was derived. The analysis of potential expression shows that: 1) the potential generated by the power supply current is proportional to the current size and the medium resistivity; 2) as the medium thickness increases, the potential reduces; 3) to reduce the influence of power supply current, the power supply electrode should be away from the detection area as far as possible.

scholarly journals ELECTROMAGNETIC SOURCE EQUIVALENCE AND EXTENSION OF THE COMPLEX IMAGE METHOD FOR GEOPHYSICAL APPLICATIONS

2009 ◽  
Vol 16 ◽  
pp. 57-84 ◽  
Author(s):  
Antti Pulkkinen ◽  
Ari Viljanen ◽  
Risto Pirjola ◽  
Lasse Häkkinen
Keyword(s):  
Image Method ◽  
Complex Image ◽  
Electromagnetic Source

Analysis of Microstrip Filter Circuit Based on Network Port Model of MOM

2013 ◽  
Vol 303-306 ◽  
pp. 1859-1863 ◽  
Author(s):  
Hong Wei Sun ◽  
Xiao Chun Wang
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Network Theory ◽  
Image Method ◽  
Method Of Moment ◽  
Microstrip Filter ◽  
Numerical Result ◽  
Complex Image ◽  
Discrete Complex Image Method ◽  
Discrete Complex

By combining the method of moment (MoM) and the method of network analysis, we analyze the microstrip filter circuits. First, we deduce and calculate the closed form multilayered Green’s function by using the discrete complex image method. Then, we apply the multilayered Green’s function into the method of moment (MoM) and by using the multi-port network theory, we get the networks parameters. At last, the numerical result proves the method’s accuracy and validity.

Analysis of Frequency- and Temperature-Dependent Substrate Eddy Currents in On-Chip Spiral Inductors Using the Complex Image Method

2007 ◽  
Vol 43 (7) ◽  
pp. 3243-3253 ◽  
Author(s):  
Kai Kang ◽  
Jinglin Shi ◽  
Wen-Yan Yin ◽  
Le-Wei Li ◽  
S. Zouhdi ◽  
...  
Keyword(s):  
Eddy Currents ◽  
Image Method ◽  
Temperature Dependent ◽  
Complex Image ◽  
Spiral Inductors ◽  
On Chip

A Green Function of Vertical Interfacial Point Source SH Wave Scattering by a Circular Lining in an Elastic Quarter Space

2014 ◽  
Vol 644-650 ◽  
pp. 1569-1572
Author(s):  
Hui Qi ◽  
Guang Long Luo ◽  
Xiang Nan Pan ◽  
Chun Gao
Keyword(s):  
Wave Function ◽  
Green Function ◽  
Point Source ◽  
Expansion Method ◽  
Steady State Solution ◽  
Stationary Wave ◽  
Image Method ◽  
Basic Solution ◽  
Displacement Fields ◽  
Quarter Space

An anti-plane Green function is formulated for steady state solution of a circular lining impacted by a vertical interfacial point source in an elastic quarter space. Series forms of scattering and stationary wave of the circular lining are constructed with Fourier wave function expansion method. Basic solution of the anti-plane point source is employed to represent displacement fields of incident wave. Stress-free conditions on the quarter bounds are satisfied by using image method. Displacement and stress continuity conditions of the lining are expanded as Fourier series to determine definite equations of unknown coefficients of wave function series.

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