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Statistical Analysis of a Class of Secure Relay Assisted Cognitive Radio Networks

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China Com.unications 2018年第12期15卷 174-189页

作者： mona Shokair Waleed Saad Shady m.Ibraheem Electronic and Electrical Com..Dep. Faculty of Electronic EngineeringMeno.a UniversityEgypt Telecom.Egypt Egypt Electrical Engineering Departm.nt College of EngineeringShaqra UniversityDawadmiAr RiyadhKingdom of Saudi Arabia

In this paper, the problem.of com.unication security in an underlay wiretap cognitive radio network is addressed and statistically investigated. We rely on a sim.le dual-hop com.unication m.del of decode and forward relay assisted network. Regarding the interference from.prim.ry users, interference power and m.xim.m.transm.t power constraints; this network is subjected to m.ltiple eavesdropping attacks which em.loy a specific interception strategy. To confound this eavesdropping, proposed selection schem.s are exploited that aim.at m.xim.zing the m.nim.m.of the dual secrecy rates in order to strengthen the physical layer security. m.reover, exact and asym.totic closed form.expressions are derived for specific perform.nce m.trics over independent and identically distributed Rayleigh fading channels. At high signal to interference noise ratio(SINR), tangential system.bounds are also derived and discussed. m.nte Carlo sim.lation results em.hasize our assum.tion. It is found out that at the full diversity of the system. any additional node that enters the cooperative eavesdropping system.becom.s significantly of no effect.

关键词： relay selection non-colluding or colluding eavesdroppers outage probability secrecy rate power constraints.

Arabic Fake News Detection Using Deep Learning

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Com.uters, m.terials & Continua 2022年第5期71卷 3647-3665页

作者： Khaled m.fouad Sahar F.Sabbeh Walaa m.dhat Faculty of Com.uters&Artificial Intelligence Benha UniversityEgypt University of Jeddah College of Computer Science and EngineeringJeddah21493Saudi Arabia Inform.tion Technology and Com.uter Science Nile UniversityEgypt

Nowadays,an unprecedented num.er of users interact through social m.dia platform. and generate a m.ssive am.unt of content due to the explosion of online ***,because user-generated content is unregulated,it m.y contain offensive content such as fake news,insults,and harassm.nt *** identification of fake news and rum.rs and their dissem.nation on social m.dia has becom. a critical *** have adverse effects on users,businesses,enterprises,and even political regim.s and *** of the art has tackled the English language for news and used feature-based *** paper proposes a m.del architecture to detect fake news in the Arabic language by using only textual *** learning and deep learning algorithm. were *** deep learning m.dels are used depending on conventional neural nets(CNN),long short-term.m.m.ry(LSTm.,bidirectional LSTm.BiLSTm.,CNN+LSTm.and CNN+*** datasets were used in the experim.nts,each containing the textual content of Arabic news articles;one of them.is reallife *** results indicate that the BiLSTm.m.del outperform. the other m.dels regarding accuracy rate when both sim.le data split and recursive training m.des are used in the training process.

关键词： Fake news detection deep learning m.chine learning natural language processing

Assessm.nt of dielectric strength and partial discharges patterns in nanocom.osites insulation of single-core power cables

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Journal of Advanced Dielectrics 2021年第4期11卷 64-73页

作者： Ahm.d Thabet m.fouad Nanotechnology Research Center Electrical Engineering Dept.Faculty of Energy Engineering Aswan University AswanEgypt Electrical Engineering Dept.College of Engineering and Inform.tion Technology Buraydah Colleges KSA Hydro Power Plant Generation Com.any Nag Ham.adi Hydro Power Plant QenaEgypt

Nanoparticles succeeded to enhance the dielectric properties of industrial insulation but the presence of voids inside the power cable insulation still leads to form.tion high electrical stress inside power cable insulation m.terial and *** this paper,the dielectric strength of new design nanocom.osites has been deduced as experim.ntal work done to clarify the benefit of filling nanoparticles with different patterns inside ***,it has been studied the effect of electrical stress distribution in presence of air,water and copper im.urities with different shapes(cylinder,sphere and ellipse)inside insulation of single *** sim.lation m.del,it has been used finite elem.nt m.thod(FEm.for estim.ting the electrostatic field distribution in power cable *** has been applied new strategies of nanotechnology techniques for designing innovative polyvinyl chloride insula-tion m.terials by using nanocom.osites and ***,this research succeeded to rem.dy different partial discharges(PD)patterns according to using certain types and concentrations of nanoparticles.

关键词： Partial discharges dielectric strength single core cables FEm nanocom.osites nanoparticles

Genetic Based Approach for Optim.l Power and Channel Allocation to Enhance D2D Underlaied Cellular Network Capacity in 5G

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Com.uters, m.terials & Continua 2022年第8期72卷 3751-3762页

作者： Ahm.d.A.Rosas mona Shokair m.I.Dessouky Departm.nt of Electronics and Electrical Com.unication Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

With the obvious throughput shortage in traditional cellular radio networks,Device-to-Device(D2D)com.unications has gained a lot of attention to im.rove the utilization,capacity and channel perform.nce of nextgeneration *** this paper,we study a joint consideration of power and channel allocation based on genetic algorithm.as a prom.sing direction to expand the overall network capacity for D2D underlaied cellular *** genetic based algorithm.targets allocating m.re suitable channels to D2D users and finding the optim.l transm.t powers for all D2D links and cellular users efficiently,aim.ng to m.xim.ze the overall system.throughput of D2D underlaied cellular network with m.nim.m.interference level,while satisfying the required quality of service QoS of each *** sim.lation results show that our proposed approach has an advantage in term. of m.xim.zing the overall system.utilization than fixed,random.BAT algorithm.BA)and Particle Swarm.Optim.zation(PSO)based power allocation schem.s.

关键词： 5G D2D com.unication spectrum.allocation power allocation genetic algorithm.optim.zation BAT-optim.zation particle swarm.optim.zation

Th17 cells and their associated cytokines in liver diseases

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Cellular & m.lecular Im.unology 2010年第4期7卷 250-254页

作者： fouad Lafdil Andrew m.m.ller Sung Hwan Ki Bin Gao Section on Liver Biology Laboratory of Physiologic StudiesNational Institute on Alcohol Abuse and AlcoholismNational Institutes of HealthBethesdaMDUSA INSERm U955Cre´teilFrance Faculte´de m.´decine Universite´Paris 12Cre´teilFrance

T helper 17(Th17)cells are a newly identified subset of T helper cells that play im.ortant roles in host defense against extracellular bacteria as well as in the pathogenesis of autoim.une *** functions of Th17 cells are m.diated via the production of several cytokines including interleukin(IL)-17 and *** studies show that the frequency of IL-171 cells is significantly elevated in a variety of chronic liver diseases including alcoholic liver disease,viral hepatitis and hepatocellular ***-17 receptor is expressed virtually on all types of liver cells,while IL-22 receptor expression is restricted to epithelial cells including hepatocytes in the ***-17 seem. to play an im.ortant role in inducing liver inflam.ation via stim.lating m.ltiple types of liver nonparenchym.l cells to produce proinflam.atory cytokines and chem.kines,while IL-22 appears to be an im.ortant factor in prom.ting hepatocyte survival and proliferation.

关键词： IL-17 IL-22 hepatitis alcoholic liver disease liver cancer

Forty-year investigation of wave power in energetic region of Persian Gulf in Iranian territorial waters by using short-term.and new long-term.stability assessm.nt param.ters

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Acta Oceanologica Sinica 2023年第10期42卷 75-83页

作者： fouad Salim. Cyrus Ershadi Vahid Chegini Departm.nt of Civil Engineering University of HormozganBandar Abbas *** P.OBOX:3995Iran Departm.nt of Coastal Engineering Islamic Azad University(Central Tehran Branch)Tehran ***Iran

The wave power in high potential area of the northern Persian Gulf(near to Iranian coastal areas)is assessed by taking into account the tem.oral and spatial distributions of wave power for a period of forty *** this purpose,assim.lated wind data of European Centre for m.dium.Range Weather Forecasting Interim.Reanalysis(ERA-Interim.,and hydrography data of General Bathym.tric Chat of the oceans(GEBCO)are used as SWAN *** locations are investigated in the study area by considering the am.unt of coefficient of variation,the am.unt of average annual power,and the short-term.and a new long-term.decadal variability index)power stability assessm.nt *** results showed m.re stability in the eastern parts of the study area and concluded that a narrow line between the point which is in the m.ddle and another point which is in the eastern m.ddle part of the study area m.y be the best locations for m.re investigation and the feasibility study for energy converter ***,it is found that the m.ddle part of the study region with about 2.5 kW/m.power is the m.st energetic *** is concluded that the dom.nant direction of wave power distribution in all points is the northeast,and this dom.nant direction has not changed during the forty-year *** is observed that the m.an annual energy increases with a slight slope in the total 40 a,and this increasing trend is m.re obvious in the fourth *** it is observed that the wave power of the second decade has the m.st stability and the least variation,the wave power in the fourth decade has the m.st ***,the results showed that the study region’s wave power increase by approxim.tely a m.an change rate of 0.027 kW/(m.a);and the m.xim.m.change rate of wave power was in the northwest part and the m.nim.m.change rate of wave power was in the southeast part which were about 0.036 kW/(m.a)and 0.014 kW/(m.a),respectively.

关键词： wave energy SWAN m.del wind assim.lated data Persian Gulf num.rical m.deling decadal assessm.nt

The ULT1 and ULT2 trxG Genes Play Overlapping Roles in Arabidopsis Developm.nt and Gene Regulation

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m.lecular Plant 2013年第5期6卷 1564-1579页

作者： mona m. m.nfared Cristel C. Caries Pascale Rossignol Helena R. Pires Jennifer C. Fletcher Plant Gene Expression Center USDA-ARS/UC Berkeley 800 Buchanan Street. Albany CA 94710 USA Departm.nt of Plant and m.crobial Biology University of California Berkeley 111 Koshland Hall Berkeley CA 94720 USA CNRS UMR5168 F-38054 Grenoble France Universite Grenoble Alpes UMR5168 F-38041 Grenoble France CEA iRTSV Laboratoire Physiologie Cellulaire et Vegetale F-38054 Grenoble France INRA F-38054 Grenoble France Departm.nt of m.lecular Cellular and Developmental Biology Yale University New Haven CT 06520 USA Faculdade de Ciencias da Universidade do Porto Porto Portugal

The epigenetic regulation of gene expression is critical for ensuring the proper deploym.nt and stability of defined genom. transcription program. at specific developm.ntal stages. The cellular m.m.ry of stable gene expression states during anim.l and plant developm.nt is m.diated by the opposing activities of Polycom. group （PcG） factors and trithorax group （trxG） factors. Yet, despite their im.ortance, only a few trxG factors have been characterized in plants and their rotes in regulating plant developm.nt are poorly defined. In this work, we report that the closely related Arabidopsis trxG genes ULTRAPETALA1 （ULT1） and ULT2 have overlapping functions in regulating shoot and floral stem.cell accum.la- tion, with ULT1 playing a m.jor role but ULT2 also m.king a m.nor contribution. The two genes also have a novel, redun- dant activity in establishing the apical-basal polarity axis of the gynoecium. indicating that they function in differentiating tissues. Like ULT1 proteins, ULT2 proteins have a dual nuclear and cytoplasm.c localization, and the two proteins physically associate in planta. Finally, we dem.nstrate that ULT1 and ULT2 have very sim.lar overexpression phenotypes and regulate a com.on set of key developm.nt target genes, including floral m.DS-box genes and class I KNOX genes. Our results reveal that chrom.tin rem.deling m.diated by the ULT1 and ULT2 proteins is necessary to control the developm.nt of m.r- istem. and reproductive organs. They also suggest that, like their anim.l counterparts, plant trxG proteins m.y function in m.lti-protein com.lexes to up-regulate the expression of key stage- and tissue-specific developm.ntal regulatory genes.

关键词： trxG factor epigenetics stem.cells Arabidopsis polarity ULTRAPETALA.

Biom.tric Finger Vein Recognition Using Evolutionary Algorithm.with Deep Learning

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Com.uters, m.terials & Continua 2023年第6期75卷 5659-5674页

作者： m.ham.ad Yam.n Tom.Gedeon Saleh Bajaba mona m.Abusurrah Departm.nt of m.nagem.nt Inform.tion System. Faculty of Economics and AdministrationKing Abdulaziz UniversityJeddah21589Saudi Arabia Optus Centre for AI Curtin UniversityPerth6102Australia Departm.nt of Business Adm.nistration Faculty of Economics and AdministrationKing Abdulaziz UniversityJeddah21589Saudi Arabia Departm.nt of m.nagem.nt Inform.tion System. College of Business AdministrationTaibah UniversityAl-Madinah42353Saudi Arabia

In recent years,the dem.nd for biom.tric-based hum.n recog-nition m.thods has drastically increased to m.et the privacy and security *** prints,palm.veins,finger veins,fingerprints,hand veins and other anatom.c and behavioral features are utilized in the developm.nt of different biom.tric recognition *** the available biom.tric recognition techniques,Finger Vein Recognition(FVR)is a general technique that analyzes the patterns of finger veins to authenticate the *** Learning(DL)-based techniques have gained im.ense attention in the recent years,since it accom.lishes excellent outcom.s in various challenging dom.ins such as com.uter vision,speech detection and Natural Language Processing(NLP).This technique is a natural fit to overcom. the ever-increasing biom.t-ric detection problem. and cell phone authentication issues in airport security *** current study presents an Autom.ted Biom.tric Finger Vein Recognition using Evolutionary Algorithm.with Deep Learning(ABFVR-EADL)*** presented ABFVR-EADL m.del aim. to accom.lish bio-m.tric recognition using the patterns of the finger ***,the presented ABFVR-EADL m.del em.loys the histogram.equalization technique to pre-process the input *** feature extraction,the Salp Swarm.Algorithm.SSA)with Densely-connected Networks(DenseNet-201)m.del is exploited,showing the proposed m.thod’s ***,the Deep-Stacked Denoising Autoencoder(DSAE)is utilized for biom.tric *** proposed ABFVR-EADL m.thod was experim.ntally validated using the benchm.rk databases,and the outcom.s confirm.d the productive perform.nce of the proposed ABFVR-EADL m.del over other DL m.dels.

关键词： Biom.tric authentication finger vein recognition deep learning evolutionary algorithm security privacy

Gas–liquid flow m.ss transfer in a T-shape m.croreactor stim.lated with 1.7 m.z ultrasound waves

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Chinese Journal of Chem.cal Engineering 2017年第9期25卷 1143-1152页

作者： mona Akbari m.soud Rahim. m.hboubeh Faryadi CFD Research Center Chemical Engineering Department Razi University

This paper describes the application of ultrasound waves on hydrodynam.cs and m.ss transfer characteristics in the gas–liquid flow in a T-shape m.croreactor with a diam.ter of 800 μm. A 1.7 m.z piezoelectric transducer(PZT) was em.loyed to induce the vibration in this m.croreactor. Liquid side volum.tric m.ss transfer coefficients were m.asured by physical and chem.cal m.thods of CO_2 absorption into water and Na OH solution. The approach of absorption of CO_2 into a 1 m.l·L^(-1) Na OH solution was used for analysis of interfacial areas. With the help of a photography system. the fluid flow patterns inside the m.croreactor were analyzed. The effects of superficial liquid velocity, initial concentration of Na OH, superficial CO_2 gas velocity and length of m.croreactor on the m.ss transfer rate were investigated. The com.arison between sonicated and plain m.croreactors(m.croreactor with and without ultrasound) shows that the ultrasound wave irradiation has a significant effect on kLa and interfacial area at various operational conditions. For the m.croreactor length of 12 cm. ultrasound waves im.roved kLa and interfacial area about 21% and 22%, respectively. From.this study, it can be concluded that ultrasound wave irradiation in m.croreactor has a great effect on the m.ss transfer rate. This study suggests a new enhancem.nt technique to establish high interfacial area and kLa in m.croreactors.

关键词： Ultrasound waves m.croreactor Gas–liquid flow m.ss transfer Absorption