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外交评论（外交学院学报） 2000年第S1期20卷 24-28页

作者： Mustapha kamel AL-Sayyid CenterfortheStudyofDevelopingCountries CairoUniversity

Stock Markets,Financial Depth,and Economic Growth in China:Evidence from ARDLModel

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China Finance and Economic Review 2024年第1期13卷 88-111页

作者： Afef Bouattour Maha Kalai kamel Helali Higher Institute of Business Administration of Sfax University of Sfax Faculty of Economics and Management of Sfax University of Sfax

The relationship between financial development and economic growth in China is *** this perspective,this article aims to identify this relationship using both capital market and banking intermediation indicators,which were rarely considered in the previous *** autoregressive model with staggered lags(ARDL)examines the long-run cointegration relationship between 1980 and *** results suggest that the contribution of different subsectors of the Chinese financial system to economic growth *** development of the money market has a negative impact,whereas market capitalization has a positive impact on economic growth in *** the contribution of the banking system to China's economic growth,the two variables measuring the depth of financial institutions showed opposite impacts in both the short and long *** important policy implications,regulators need to ensure a pro-growth environment,effectively regulate the informal banking system,and prevent potential financial risks by revising policies.

关键词： stock markets financial depth economic growth China ARDL

Optimal Implementation of Photovoltaic and Battery Energy Storage in Distribution Networks

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Computers, Materials & Continua 2021年第11期69卷 1463-1481页

作者： Hussein Abdel-Mawgoud Salah kamel Hegazy Rezk Tahir Khurshaid Sang-Bong Rhee Department of Electrical Engineering Faculty of EngineeringAswan University81542 AswanEgypt College of Engineering at Wadi Addawaser Prince Sattam Bin Abdulaziz University11911 Al-KharjSaudi Arabia Electrical Engineering Department Faculty of EngineeringMinia University61517 MiniaEgypt Department of Electrical Engineering Yeungnam UniversityGyeongsan38541Korea

Recently,implementation of Battery Energy Storage(BES)with photovoltaic(PV)array in distribution networks is becoming very popular in overall the *** PV alone in distribution networks generates variable output power during 24-hours as it depends on variable natural *** can be able to generate constant output power during 24-hours by installing BES with ***,this paper presents a new application of a recent metaheuristic algorithm,called Slime Mould Algorithm(SMA),to determine the best size,and location of photovoltaic alone or with battery energy storage in the radial distribution system(RDS).This algorithm is modeled from the behavior of SMA in *** the optimization process,the total active power loss during 24-hours is used as an objective function considering the equality and inequality *** addition,the presented function is based on the probabilistic for PV output and different types of system *** candidate buses for integrating PV and BES in the distribution network are determined by the real power loss sensitivity factor(PLSF).IEEE 69-bus RDS with different types of loads is used as a test *** effectiveness of SMA is validated by comparing its results with those obtained by other well-known optimization algorithms.

关键词： Slime mould algorithm optimization distribution networks renewable energy uncertainty

A Hybrid Virtual Cloud Learning Model during the COVID-19 Pandemic

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Computers, Materials & Continua 2021年第3期66卷 2671-2689页

作者： Shaymaa E.Sorour Tamer M.kamel Hanan E.Abdelkader Department of Educaion Technology(Computer Teacher Preparation) Kafrelsheikh University33516Egypt Department of Educaion Technology Kafrelsheikh University33516Egypt Department of Computer Teacher Preparation Mansoura University35516Egypt

The COVID-19 pandemic has affected the educational systems worldwide,leading to the near-total closures of schools,universities,and *** need to adapt to changes to face this crisis without negatively affecting students’***,the purpose of this study is to identify and help solve to critical challenges and factors that influence the e-learning system for Computer Maintenance courses during the COVID-19 *** paper examines the effect of a hybrid modeling approach that uses Cloud Computing Services(CCS)and Virtual Reality(VR)in a Virtual Cloud Learning Environment(VCLE)*** VCLE system provides students with various utilities and educational services such as presentation slides/text,data sharing,assignments,quizzes/tests,and *** addition,learning through VR enables the students to simulate physical presence,and they respond well to VR environments that are closer to reality as they feel that they are an integral part of the ***,the research presents a rubric assessment that the students can use to reflect on the skills they used during the *** research findings offer useful suggestions for enabling students to become acquainted with the proposed system’s usage,especially during theCOVID-19 pandemic,and for improving student achievementmore than the traditional methods of learning.

关键词： Virtual cloud learning environment virtual reality environment rubric assessment COVID-19 critical challenges

Experimental investigation and comparative study of interturn short-circuits and unbalanced voltage supply in induction machines

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Frontiers in Energy 2013年第3期7卷 271-278页

作者： Fatima BABAA Abdelmalek KHEZZAR Mohamed el kamel OUMAAMAR Department of Electrical Engineering Mentouri University Constantine25000 Algeria

A transient model for an induction machine with stator winding turn faults on a single phase is derived using reference frame transformation theory. The negative sequence component and the 3rd harmonic are often considered as accurate indicators. However, small unbalance in the supply voltage and/or in the machine structure that exists in any real system engenders the same harmonics components. In this case, it is too difficult to distinguish between the current harmonics due to the supply voltage and those originated by inter-turn short- circuit faults. For that, to have the correct diagnosis and to increase the sensitivity and the reliability of the diagnostic system, it is crucial to provide the relationship between the inter-turn short-circuits in the stator winding and the supply voltage imbalance through an accurate mathematical model and via a series of experimental essays.

关键词： induction machines fault indicator inter-turn short-circuit fault unbalance supply voltage

Operational Reliability Model of Hybrid MMC Considering Multiple Time Scales and Multi-state Submodule

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Journal of Modern Power Systems and Clean Energy 2021年第3期9卷 648-656页

作者： Fei Feng Juan Yu Wei Dai Zhifang Yang Xingpan Zhao Salah kamel Guobin Fu State Key Laboratory of Power Transmission Equipment&System Security and New Technology Chongqing UniversityChongqing 400044China Chuxiong Power Supply Bureau of Yunnan Power Grid Chuxiong 67500China Electric Power Research Institute State Grid Qinghai Electric Power CompanyXining 810008China

Environmental and electrical factors such as wind speed,air temperature and switching frequency have significant influences on the operational reliability of hybrid modular multilevel converter(MMC),which is commonly used for the wind power ***,the existing reliability model of hybrid MMC based on statistics cannot accurately reflect the impact of these *** this paper,a new operational reliability model of hybrid MMC is *** reliability index of the hybrid MMC is coupled with its operation characteristics by calculating multi-term thermal *** addition,an operation strategy of hybrid MMC is proposed to improve its *** multi-state submodule(SM)is developed,which is capable of bypassing specific faulty power modules instead of the whole *** studies show that the proposed operational reliability model could describe the impact of environmental and electrical ***,the proposed operation strategy can improve the reliability of hybrid IMMC by extending the operation time of SMs.

关键词： Modular multilevel converter(MMC) multiple time scales submodule(SM) operational reliability thermal cycling

基于自适应谐振理论的Web文档聚类集成方法

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西南交通大学学报 2009年第1期44卷 26-31页

作者：杨燕靳蕃 kamel Mohamed 西南交通大学信息科学与技术学院四川成都610031 Dept.of Electrical and Computer Eng. University of WaterlooWaterlooOntarioCanada N2L 3G1

提出了基于自适应谐振理论的Web文档聚类集成方法.该方法先用蚁群算法对Web文档进行聚类,再用ART神经网络对聚类结果集成.实验结果表明,集成后的聚类综合质量高于集成前的聚类综合质量.

关键词：自适应谐振理论聚类集成蚁群聚类算法 Web文档

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一种基于蚁群算法的聚类组合方法

铁道学报 2004年第4期26卷 64-69页

作者：杨燕靳蕃 Mohamed kamel 西南交通大学计算机与通信工程学院四川成都610031 Department of System Design Engineering University of Waterloo Waterloo

蚂蚁等群居类昆虫被看作能解决复杂问题的分布式系统,研究者从它们的协作性能以及自组织、信息素通信、任务划分等机理中获得灵感,已在组合优化、通信网络、机器人等许多应用领域找到解决问题的新方法。聚类作为一种无监督的学习,能根... 详细信息

蚂蚁等群居类昆虫被看作能解决复杂问题的分布式系统,研究者从它们的协作性能以及自组织、信息素通信、任务划分等机理中获得灵感,已在组合优化、通信网络、机器人等许多应用领域找到解决问题的新方法。聚类作为一种无监督的学习,能根据数据间的相似程度自动地进行分类。基于蚁群算法的聚类方法已经在当前数据挖掘研究中得到应用。本文提出的基于蚁群算法的聚类组合新方法,模仿多蚁群的协作性能,将运动速度类型各异的多个蚁群,独立而并行地进行聚类分析,然后组合其聚类结果为超图,再用蚁群算法对超图进行2次划分。实验结果表明,该方法能自动决定聚类的数目,聚类组合方法能明显改善聚类质量。

关键词：蚁群算法聚类组合超图图划分数据挖掘

Synthesis, Characterization and Ion Exchange Properties of a New Composite of Inorganic Ion Exchanger： Polyacrylonitrile Cerium（IV） Molybdophosphate

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Chinese Journal of Chemistry 2012年第1期30卷 177-182页

作者： Ahmadi,Seyed Javad Yavari,Ramin Ashtari,Parviz' Gholipour,Vanik kamel,Leila Rakhshandehru,Farokh Waste Management Department Nuclear Science and Technology Research InstituteP.O.Box 11365/8486TehranIran Faculty of Chemistry Tarbiat Moallem UniversityP.C.TehranIran

In this work, the synthesis of the composite of cerium（IV） molybdophosphate （CMP） and polyacrylonitrile （PAN） was reported （CMP-PAN）. The material has been characterized by elemental and spectral （FT-IR）, X-ray and thermal （TGA） analysis. Also the size analysis of the composite was done by scanning electron microscopy （SEM）. Its chemical stability in acidic, basic and saline solutions and radiation stability up to 100 kGy total expose dose were assessed. Whereas the synthesized composite has ion exchange properties, its ion exchange capacity and behavior toward several metal ions were also investigated. Further, the distribution coefficients of the metal ions were calculated. Finally, the ability of the synthesized CMP-PAN composite for the decontamination of low level liquid waste （LLLW） was investigated.

关键词： composite ion-exchange cerium(IV) molybdophosphate

Regional anesthesia for orthopedic procedures:What orthopedic surgeons need to know

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World Journal of Orthopedics 2022年第1期13卷 11-35页

作者： Ihab kamel Muhammad F Ahmed Anish Sethi Department of Anesthesiology Lewis Katz School of Medicine at Temple UniversityPhiladelphiaPA 19140United States

Regional anesthesia is an integral component of successful orthopedic *** anesthesia is commonly used for surgical anesthesia while peripheral nerve blocks are often used for postoperative *** evaluation for regional anesthesia should include neurological,pulmonary,cardiovascular,and hematological *** blocks include spinal,epidural,and combined spinal *** extremity peripheral nerve blocks include interscalene,supraclavicular,infraclavicular,and *** extremity peripheral nerve blocks include femoral nerve block,saphenous nerve block,sciatic nerve block,iPACK block,ankle block and lumbar plexus *** choice of regional anesthesia is a unanimous decision made by the surgeon,the anesthesiologist,and the patient based on a risk-benefit *** choice of the regional block depends on patient cooperation,patient positing,operative structures,operative manipulation,tourniquet use and the impact of postoperative motor blockade on initiation of physical *** anesthesia is safe but has an inherent risk of failure and a relatively low incidence of complications such as local anesthetic systemic toxicity(LAST),nerve injury,falls,hematoma,infection and allergic *** should be used for regional anesthesia procedures to improve the efficacy and minimize *** treatment guidelines and rescue medications(intralipid)should be readily available during the regional anesthesia administration.

关键词： Orthopedic surgery Regional anesthesia Spinal Epidural Combined spinal epidural Peripheral nerve blocks Neuraxial blocks Upper extremity Lower extremity Interscalene Supraclavicular Infraclavicular Axillary Femoral Fascia iliaca Popliteal Sciatic Saphenous Adductor canal Lumbar plexus Brachial plexus Ankle iPACK Complication Local anesthetic systemic toxicity Nerve injury Block failure Continuous nerve block catheters