Mutual Admittance of Two Arbitrary Antennas in Nonplanar Skew Positions Based on Infinitesimal Dipole Modeling

2019 ◽  
Vol 67 (11) ◽  
pp. 6705-6713
Author(s):  
Young-Dam Kim ◽  
Sung-Jun Yang ◽  
Yun-Su Kang ◽  
In-June Hwang ◽  
Jong-Won Yu
Keyword(s):  
Dipole Modeling

scholarly journals Optimal Check Size and Reversal Rate to Elicit Pattern-reversal MEG Responses

2005 ◽  
Vol 32 (2) ◽  
pp. 218-224 ◽  
Author(s):  
Wei-Ta Chen ◽  
Yu-Chieh Ko ◽  
Kwong-Kum Liao ◽  
Jen-Chuen Hsieh ◽  
Tzu-Chen Yeh ◽  
...  
Keyword(s):  
Cortical Activation ◽  
Pattern Reversal ◽  
Check Size ◽  
Size Dependent ◽  
Visual Contrast ◽  
Single Dipole ◽  
Dipole Modeling ◽  
Pattern Reversal Stimulation ◽  
Visual Cortical ◽  
The Impact

ABSTRACT:Objective:To determine the impact of check size and interstimulus interval (ISI) on neuromagnetic visual cortical responses.Methods:We recorded visual evoked fields to pattern-reversal stimulation with central occlusion in ten subjects. The ~100 ms magnetic activation (P100m) was analyzed by single dipole modeling.Results:With 1 s ISI, P100m strengths increased as check size increased from 15' up to 120' of visual arc, and larger checks elicited less P100m activation. With 120' checks, we found no P100m attenuation as ISI decreased from 4 s to 0.16 s. P100m sources around the calcarine sulcus did not vary with check size or ISI.Conclusions:The magnitude of cortical activation during visual contrast processing is check size-dependent and the 120' checks are optimum for future studies on neuromagnetic visual cortical functions using central-occluded stimulation. The corresponding neuronal activation demonstrated a short refractory period less than 0.16 s. We also found significantly overlapping cortical representation areas for different check sizes or ISIs.

Multi-dipole modeling of XLPE cable for electromagnetic field studies in large power systems

2013 ◽  
Vol 33 (1/2) ◽  
pp. 3-13
Author(s):  
Mohammadreza Barzegaran ◽  
Osama A. Mohammed
Keyword(s):  
Power Systems ◽  
Field Studies ◽  
Electrical Machine ◽  
Large Power ◽  
Content Type ◽  
Xlpe Cable ◽  
Electric And Magnetic Fields ◽  
Dipole Modeling ◽  
Electromagnetic Signature ◽  
Actual Geometry

Purpose – In this paper, modeling of the XLPE cable for electromagnetic signature study at a far distance is proposed. The paper aims to discuss these issues. Design/methodology/approach – Due to the very small ratio of the dimensions of cables to the dimensions of the whole system, using actual geometry of the cables with all layers in this study causes deformation of the cable's model. Therefore, multi-dipole modeling is used for modeling the cables. Findings – This model includes specific voltages and currents in lines and nodes, respectively. Radiated electric and magnetic fields at a far distance are selected as the index of appropriateness of the model. Originality/value – In order to investigate the accuracy of the model, various configuration of the cable is studied. Additionally, coupling of the cable with an electrical machine is investigated. They all show that the equivalent models can be used in place of the actual model for signature studies.

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