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Optimization of Impedance Plane reducing Coupling between Antennas

Wireless Engineering and Technology 2011年第1期2卷 1-8页

作者： Yong S.Joe Jean-Francois D.Essiben Eric r.Hedin jacquie thérèse n.bisse Jаcques Mаtаngа Center for Computational nanosciences Department of Physics and AstronomyBall State UniversityMuncieUSA Department of Electrical Engineering Advanced Teachers’Training College for Technical Education University of DoualaDoualaCameroon Department of Electrical Engineering and Computer Science University Institute of TechnologyUniversity of DoualaDoualaCameroon Industrial Engineering Faculty University of DoualaDoualaCameroon

this paper provides a solution for the design optimization of two-dimensional impedance structures for a given elec-tromagnetic field distribution. these structures must provide electromagnetic compatibility between antennas located on a plane. the optimization problem is solved for a given attenuation of the complete field. Since the design optimiza-tion gives a complex law of impedance distribution with a large real part, we employ the method of pointwise synthesis for the optimization of the structure. We also consider the design optimization case where the structure has zero im-pedance on its leading and trailing edges. the method of moments is used to solve the integral equations and the nu-merical solution is presented. the calculated impedance distribution provides the required level of antenna decoupling. the designs are based on the concept of soft and hard surfaces in electromagnetics.

关键词： Coupling Design Optimization Pointwise Synthesis

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Optimal reconfiguration of Power Distribution Systems Based on Symbiotic Organism search Algorithm

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Journal of Power and Energy Engineering 2017年第11期5卷 1-9页

作者： Alexandre Teplaira Boum Patrik roger ndjependa jacquie ngo bisse University of Douala Douala Cameroon

this paper presents a reconfiguration of electric power distribution network based on the symbiotic organism search algorithm (SOS). the goal here is to come out with an optimal reconfiguration of a power distribution network that minimises the active power losses for a good power flow. this method is applied to IEEE 33 bus and the results show a significant reduction of active power losses. the execution time for this algorithm is found to be smaller compared to other metaheuristic algorithms.

关键词： reconfiguration Algorithm of Symbiotic search Metaheuristic Algorithm

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当弗洛伊德遇到庄子后:在加速体验式动力治疗中伴随他者静观性在场的心态和自体转化之舞

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心理学通讯 2019年第3期2卷 176-185页

作者： Danny Yeung Diana Fosha jacquie HYe Perman 徐勇唐妘(译) 加速体验式动力治疗法(AEDP)研究院美国纽约上海交通大学医学院附属精神卫生中心上海200030 不详

文章聚焦于加速体验式动力治疗(Accelerated Experiential Dynamic Psychotherapy,AEDP)治疗心态的静观性在场,首先介绍了AEDP的理论,其次是对静观性在场及直觉的探索,最后通过临床案例分析来说明静观性在场在AEDP治疗中的应用。主要内... 详细信息

文章聚焦于加速体验式动力治疗(Accelerated Experiential Dynamic Psychotherapy,AEDP)治疗心态的静观性在场,首先介绍了AEDP的理论,其次是对静观性在场及直觉的探索,最后通过临床案例分析来说明静观性在场在AEDP治疗中的应用。主要内容涉及:其一,AEDP植根于短期的精神动力学治疗,是一个整合的、非病理性的、聚焦于转化的治疗模式,与依恋理论模式、母婴发展研究以及情感神经科学相交叉,与积极心理学、神经可塑性、静观传统以及庄子的哲学有着深刻的共鸣。其二,静观性在场被理解为是使生活和行动充实的一种包罗万象的意识,且是心灵的一种态度。它与直觉紧密相关,这种直觉就是弗洛伊德说的“机智”,也是庄子在庖丁解牛中说的“精神”。

关键词：加速体验式动力治疗治疗心态静观性在场直觉庄子

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High-Precision Structural Map of Southeast Cameroon Using Phase Filters on Potential Gravimetric Data

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Open Journal of Earthquake research 2022年第4期11卷 89-107页

作者： nzeuga Alain rodrigue bisse Salomon Bertrant Amaya Adama Kenfack Fokem Alpha Baster ngah Christian Gislain Leonel ndjounguep Juscar nanfa Tefak Fatoumata Maelle ngoumou Paul Claude Assembe Stéphane Patrick Pokam Kengni serge Hugues Department of Petroleum Gas and Exploration School of Geology and Mining Engineering University of Ngaoundere Meiganga Cameroon Department of Geological Mapping and Geomatic School of Geology and Mining Engineering University of Ngaoundere Meiganga Cameroon Department of Mining Geology School of Geology and Mining Engineering University of Ngaoundere Meiganga Cameroon Postgraduate School of Science Technology and Geosciences University of Yaounde I Yaounde Cameroon Institute of Mining and Geological research Ministry of Scientific Research Yaounde Cameroon Department of Geophysics School of Geology and Mining Engineering University of Ngaoundere Meiganga Cameroon Department of Physics Faculty of Science University of Bamenda Bambili Cameroon

the south-east of Cameroon encompasses a wide variety of geological structures among which we can cite the Congo Craton (CC), the Sanaga Fault (SF), the Yaoundé Domain, the Panafrican belt, the Protozoic series and the Dja complex. the presence of all these structures justifies the great tectonic activity to which this area was subject from the rupture of Pangea to the creation of the different plates that exist today. In this work, we will bring out a high-resolution structural map of the study area by applying the qualitative analysis of the phase filters on 200,900 points of gravimetric data obtained from the combination of the XGM2016 and ETOPO1 models. then, with these same data, we will bring out another structural map with the maxima method called Multi-Scale Horizontal Derivative of Vertical Derivative (MSHDVD) which will be compared to the first in order to show the limits of the MSHDVD method. To do this, we will first use the extension method to highlight the map of residual anomalies, then a combination of derivative, gradient and phase filters to highlight the geological structures responsible for fracturing in this area. Phase filters have the advantage that they make it possible to highlight all the geological edges responsible for the fracturing without taking into account the depth, while the MSHDVD method highlights the existing geological contacts (edges) at depths well defined by the examiner. the structural map obtained with the MSHDVD method shows that the major structural direction in this zone is W-E while that obtained from the interpretation of the phase filters is more precise and shows that the major structural direction in this area would be n-S and this result would be in perfect agreement with the tectonics of East Cameroon.

关键词： Gravimetry Potential Field Data Edge Detection Structural Mapping Southeast Cameroon

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