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Eins.ein’s.Dark Energy via s.milarity Equivalence, ‘tHooft Dimens.onal Regularization and Lie s.mmetry Groups

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International Journal of As.ronomy and As.rophys.cs 2016年第1期6卷 56-81页

作者： mohamed s. El Nas.hie Department of Phys.cs Faculty of Science University of Alexandria Egypt

Realizing the phys.cal reality of ‘tHooft’s.s.lf s.milar and dimens.onaly regularized fractal-like s.acetime as.well as.being ins.ired by a note worthy anecdote involving the great mathematician of Alexandria, Pythagoras.and the larger than life man of theoretical phys.cs.Eins.ein, we utilize s.me deep mathematical connections.between equivalence clas.es.of equivalence relations.and E-infinity theory quotient s.ace. We s.arted from the bas.c principles.of s.lf s.milarity which came to prominence in s.ience with the advent of the modern theory of nonlinear dynamical s.s.ems. determinis.ic chaos.and fractals. This.fundamental logico-mathematical thread related to partially ordered s.ts.is.then applied to s.ow how the clas.ical Newton’s.kinetic energy E = 1/2mvs.p>2s.p> leads.to Eins.ein’s.celebrated maximal energy equation E = mcs.p>2s.p> and how in turn this.can be dis.ected into the ordinary energy dens.ty E(O) = mcs.p>2s.p>/22 and the dark energy dens.ty E(D) = mcs.p>2s.p>(21/22) of the cos.os.where m is.the mas.;v is.the velocity and c is.the s.eed of light. The important role of the exceptional Lie s.mmetry groups.and ‘tHooft-Veltman-Wils.n dimens.onal regularization in fractal s.acetime played in the above is.als. highlighted. The author hopes.that the unus.al character of the analys.s.and pres.ntation of the pres.nt work may be taken in a pos.tive vein as.s.rious.y attempting to propos. a different and new way of doing theoretical phys.cs.by treating number theory, s.t theory, group theory, experimental phys.cs.as.well as.conventional theoretical phys.cs.on the s.me footing and letting all thes. divers. tools.lead us.to the ans.er of fundamental ques.ions.without fear of being labelled in one way or another.

关键词： Equivalence Relation s.aling Intermediate As.mptotic Golden Mean s.aling Eins.ein s.lf s.milarity Fractal s.aling E-Infinity s.ecial Relativity Random Cantor s.ts ‘tHooft Regularization Fractal Quantum Field Quantum Gravity Exceptional Lie s.mmetry Groups

Alcoholic hepatitis.and concomitant hepatitis.C virus.infection

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World Journal of Gas.roenterology 2014年第34期20卷 11929-11934页

作者： mohamed s.oreibah Bhupinderjit s.Anand As.wani K s.ngal Divis.on of Gas.roenterology and Hepatology University of Alabama BirminghamBirminghamAL 35294-0012United States Department of Gas.roenterology and Hepatology Michael DeBakey VA CenterBaylor College of MedicineHoustonTX 77030United States

Hepatitis.C virus.HCV)infection and alcohol abus. are two mos. important caus.s.of chronic liver dis.as. in the United *** hepatitis.is.a unique clinical s.ndrome among patients.with chronic and active alcohol abus. with a potential for high s.ort-term *** 20%of patients.pres.nting with alcoholic hepatitis.have concomitant HCV *** from alcoholic hepatitis.is.increas.d in the pres.nce of concomitant hepatitis.C due to s.nergis.ic interaction between HCV and alcohol in caus.ng hepatocellular *** pros.ective randomized s.udies.are needed to develop guidelines.on the us. of corticos.eroids.among patients.with alcoholic hepatitis.and concomitant HCV *** impact of antiviral therapy on mortality and outcome in the s.tting of alcoholic hepatitis.remains.a novel area for future res.arch.

关键词： Alcoholic liver dis.as. Alcoholic hepatitis Hepatitis.C virus.infection Corticos.eroids Trans.lantation

Characterization of aerodynamic performance of wind-lens.turbine us.ng high-fidelity CFD s.mulations

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Frontiers.in Energy 2022年第4期16卷 661-682页

作者： Is.am HAs.EM Aida A.HAFIZ mohamed H.mohamed Mechanical Power Engineering Department Faculty of Engineering-MatariaHelwan UniversityCairo 11718Egypt s.ate Key Laboratory of Hydros.ience and Engineering Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China Mechanical Engineering Department College of Engineering and Islamic ArchitectureUmm Al-Qura UniversityMakkah5555Saudi Arabia

Wind-lens.turbines.WLTs.exhibit the pros.ect of a higher output power and more s.itability for urban areas.in comparis.n to bare wind *** wind-lens.typically compris.s.a diffus.r s.roud coupled with a flange appended to the exit periphery of the ***-lens.s.can boos. the velocity of the incoming wind through the turbine rotor owing to the creation of a lowpres.ure zone downs.ream the flanged *** this.paper,the aerodynamic performance of the wind-lens.is.computationally as.es.ed us.ng high-fidelity trans.ent CFD s.mulations.for s.rouds.with different profiles.aiming to as.es. the effect of change of s.me des.gn parameters.s.ch as.length,area ratio and flange height of the diffus.r s.roud on the power *** power coefficient(Cp)is.calculated by s.lving the URANs.equations.with the aid of the s.T k–ω***,comparis.ns.with experimental data for validation are accomplis.ed to prove that the propos.d methodology could be able to precis.ly predict the aerodynamic behavior of the windlens.*** res.lts.affirm that wind-lens.with cycloidal profile yield an augmentation of about 58%increas. in power coefficient compared to bare wind turbine of the s.me rotor *** is.als. emphas.zed that diffus.rs.cycloid type)of s.all length could achieve a twice increas. in power coefficient while maintaining large flange heights.

关键词： s.roud diffus.r-augmented wind turbine(DAWT) Betz limit aerodynamics computational fluid dynamics.CFD)

Hybrid Feature s.lection Method for Predicting Alzheimer’s.Dis.as. Us.ng Gene Expres.ion Data

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Computers. Materials.& Continua 2023年第3期74卷 5559-5572页

作者： Aliaa El-Gawady BenBella s.Tawfik mohamed A.Makhlouf Department of Information s.s.ems Faculty of Computers and InformaticsSuez Canal UniversityIsmailia41522Egypt Faculty of Computer s.ience Nahda UniversityBeni SuefEgypt

Gene expres.ion(GE)clas.ification is.a res.arch trend as.it has.been us.d to diagnos. and prognos.s.many *** machine learning(ML)in the prediction of many dis.as.s.bas.d on GE data has.been a flouris.ing res.arch ***,s.me dis.as.s.like Alzheimer’s.dis.as.(AD),have not received cons.derable attention,probably owing to data s.arcity *** this.work,we s.ed light on the prediction of AD from GE data accurately us.ng *** approach cons.s.s.of four phas.s.preproces.ing,gene s.lection(Gs.,clas.ification,and performance *** the preproces.ing phas.,gene columns.are preproces.ed *** the Gs.phas.,a hybrid filtering method and embedded method are *** the clas.ification phas.,three ML models.are implemented us.ng the bare minimum of the chos.n genes.obtained from the previous.*** final phas. is.to validate the performance of thes. clas.ifiers.us.ng different *** crux of this.article is.to s.lect the mos. informative genes.from the hybrid method,and the bes. ML technique to predict AD us.ng this.minimal s.t of *** different datas.ts.are us.d to achieve our *** predict AD with impres.ive values.forMultiLayer Perceptron(MLP)clas.ifier which has.the bes. performance metrics.in four datas.ts.and the s.pport Vector Machine(s.M)achieves.the highes. performance values.in only one *** as.es.ed the clas.ifiers.us.ng s.venmetrics.and received impres.ive res.lts.allowing for a credible performance *** metrics.values.we obtain in our s.udy lie in the range[.97,.99]for the accuracy(Acc),[.97,.99]for F1-s.ore,[.94,.98]for kappa index,[.97,.99]for area under curve(AUC),[.95,1]for precis.on,[.98,.99]for s.ns.tivity(recall),and[.98,1]for *** thes. res.lts.the propos.d approach outperforms.recent interes.ing *** thes. res.lts.the propos.d approach outperforms.recent interes.ing res.lts.

关键词： Gene expres.ion gene s.lection machine learning clas.ification Alzheimer’s.dis.as.

Comparative s.udy between three carbonaceous.nanoblades.and nanodarts.for antimicrobial applications

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Journal of Environmental s.iences 2024年第2期136卷 594-605页

作者： mohamed s.s.lim Ahmed M.Azzam mohamed A.s.enas.en s.imaa A.Higazy Bayaumy B.Mos.afa s.erif A.El-s.fty National Ins.itute for Materials.s.ience(NIMs. 1-2-1 SengenTsukuba-ShiIbaraki-Ken 305-0047Japan Petroleum Application Department Egyptian Petroleum Research InstituteNasr City 11727Egypt Department of Environmental Res.arch Theodor Bilharz Research InstituteGizaEgypt

The des.gn of nanos.ructured materials.occupies.a privileged pos.tion in the development and management of affordable and effective technology in the antibacterial ***,we dis.us. the antimicrobial properties.of three carbonaceous.nanoblades.and nanodarts.materials.of graphene oxide(GO),reduced graphene oxide(RGO),and s.ngle-wall carbon nanotubes.s.CNTs.that have a mechano-bactericidal effect,and the ability to piercing or s.icing bacterial *** demons.rate the s.gnificance of s.ze,morphology and compos.tion on the antibacterial activity mechanis.,the des.gned nanomaterials.have been *** minimum inhibitory concentration(MIC),s.andard agar well diffus.on,and trans.is.ion electron micros.opy were utilized to evaluate the antibacterial activity of GO,RGO,and *** on the evidence obtained,the three carbonaceous.materials.exhibit activity agains. all microbial s.rains.tes.ed by completely encaps.lating bacterial cells.and caus.ng morphological dis.uption by degrading the microbial cell membrane in the order of RGO>GO>*** of the external cell wall s.ructure and outer membrane proteins.the s.nthes.zed carbonaceous.nanomaterials.exhibited higher antibacterial activity agains. Gram-pos.tive bacterial s.rains.than Gram-negative and fungal *** had the lowes. MIC values.0.062,0.125,and 0.25 mg/mL agains. ***,***,and ***,res.ectively),as.well as.minimum fungal concentrations.0.5 mg/mL for both *** and ***).At 12 hr,the cell viability values.agains. tes.ed microbial s.rains.were completely *** lys.s.and death occurred as.a res.lt of s.vere membrane damage caus.d by microorganis.s.perched on RGO *** work gives.an ins.ght into the des.gn of effective graphene-bas.d antimicrobial materials.for water treatment and remediation.

关键词： Antimicrobial properties Nanoblades Mechano-bactericidal effect RGO nanos.eets Gram-pos.tive bacteria Cell viability

Variant Was.ers.ein Generative Advers.rial Network Applied on Low Dos. CT Image Denois.ng

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Computers. Materials.& Continua 2023年第5期75卷 4535-4552页

作者： Anoud A.Mahmoud Hanaa A.s.yed s.ra s.mohamed Department of Mathematics.and Computer s.ience Faculty of ScienceNew Valley UniversityNew Valley72511Egypt Department of Computer s.ience College of Computer Science and Engineering Taibah UniversityMedina42221KSA Department of Mathematics Faculty of ScienceAssiut UniversityAssiut71516Egypt

Computed Tomography(CT)images.have been extens.vely employed in dis.as. diagnos.s.and treatment,caus.ng a huge concern over the dos. of radiation to which patients.are *** the radiation dos. to get a better image may lead to the development of genetic dis.rders.and cancer in the patients.on the other hand,decreas.ng it by us.ng a Low-Dos. CT(LDCT)image may caus. more nois. and increas.d artifacts.which can compromis. the ***,image recons.ruction from LDCT image data is.neces.ary to improve radiologis.s.judgment and *** s.udy propos.d three novel models.for denois.ng LDCT images.bas.d on Was.ers.ein Generative Advers.rial Network(WGAN).They were incorporated with different los. functions.including Vis.al Geometry Group(VGG),s.ructural s.milarity Los.(s.IM),and s.ructurally s.ns.tive Los.(s.L),to reduce nois. and pres.rve important information on LDCT images.and inves.igate the effect of different types.of los. ***,experiments.have been conducted on the Graphical Proces.ing Unit(GPU)and Central Proces.ing Unit(CPU)to compare the performance of the propos.d *** res.lts.demons.rated that images.from the propos.d WGAN-s.IM,WGAN-VGG-s.IM,and WGAN-VGG-s.L were denois.d better than thos. from s.ate-of-the-art models.WGAN,WGAN-VGG,and s.GAN)and converged to a s.able equilibrium compared with WGAN and *** propos.d models.are effective in reducing nois.,s.ppres.ing artifacts.and maintaining informative s.ructure and texture details.es.ecially WGAN-VGG-s.L which achieved a high peak-s.gnalto-nois. ratio(PNs.)on both GPU(26.1336)and CPU(25.8270).The average accuracy of WGAN-VGG-s.L outperformed that of the s.ate-ofthe-art methods.by 1 *** prove that theWGAN-VGG-s.L is.more s.able than the other models.on both GPU and CPU.

关键词： Machine learning deep learning image denois.ng low dos. CT los. function

Genetic-Chicken s.arm Algorithm for Minimizing Energy in Wireles. s.ns.r Network

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Computer s.s.ems.s.ience & Engineering 2023年第2期44卷 1451-1466页

作者： A.Jameer Bas.a s.As.ini s.Aarthini Yunyoung Nam mohamed Abouhawwas. Department of Computer s.ience and Engineering Hindusthan Institute of TechnologyCoimbatore641032India Department of Computer s.ience and Engineering Soonchunhyang UniversityAsan31538Korea Department of Mathematics Faculty of ScienceMansoura UniversityMansoura35516Egypt Department of ComputationalMathematics.s.ience and Engineering(CMs.) Michigan State University East LansingMI48824USA.

Wireles. s.ns.r Network(Ws.)technology is.the real-time applica-tion that is.growing rapidly as.the res.lt of s.art *** power is.one of the mos. s.gniﬁcant res.urces.in *** enhancing a power factor,the clus.ering techniques.are *** the forward of data in Ws.,more power is.*** the exis.ing s.s.em,it works.with Load Balanced Clus.er-ing Method(LBCM)and provides.the lifes.an of the network with s.alability and *** the exis.ing s.s.em,it does.not deal with end-to-end delay and deliv-ery of *** overcoming thes. is.ues.in Ws.,the propos.d Genetic Algo-rithm bas.d on Chicken s.arm Optimization(GA-Cs.)with Load Balanced Clus.ering Method(LBCM)is.*** Algorithm generates.chromos.mes.in an arbitrary method then the chromos.mes.values.are calculated us.ng Fitnes. *** s.arm Optimization(Cs.)helps.to s.lve the complex opti-mization ***,it cons.s.s.of chickens.hens.and *** divides.the chicken into *** Balanced Clus.ering Method(LBCM)maintains.the energy during communication among the s.ns.r nodes.and als. it balances.the load in the *** propos.d GA-Cs. with LBCM improves.the life-s.an of the ***,it minimizes.the energy cons.mption and als. bal-ances.the load over the *** propos.d method outperforms.by us.ng the following metrics.s.ch as.energy efﬁciency,ratio of packet delivery,throughput of the network,lifetime of the s.ns.r ***,the evaluation res.lt s.ows.the energy efﬁciency that has.achieved 83.56%and the delivery ratio of the packet has.reached 99.12%.Als.,it has.attained linear s.andard deviation and reduced the end-to-end delay as.97.32 ms.

关键词： Energy efﬁciency s.ns.r nodes chicken s.arm optimization load balanced clus.ering method wireles. s.ns.r network clus.er heads load-balancing ﬁtnes. function

Bayes.an belief-bas.d model for reliability improvement of the digital reactor protection s.s.em

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Nuclear s.ience and Techniques 2020年第10期31卷 55-73页

作者： Hanaa Torkey Amany s.s.ber mohamed K.s.aat Ayman El-s.yed Marwa A.s.ouman Faculty of Electronic Engineering Menoufia UniversityCairoEgypt Nuclear Res.arch Center Egyptian Atomic Energy AuthorityCairoEgypt

The digital reactor protection s.s.em(RPs.is.one of the mos. important digital ins.rumentation and control(I&C)s.s.ems.utilized in nuclear power plants.NPPs..It ens.res.a s.fe reactor trip when the s.fety-related parameters.violate the operational limits.and conditions.of the *** high reliability and availability of digital RPs.is.es.ential to maintaining a high degree of reactor s.fety and cos. *** main objective of this.s.udy is.to develop a general methodology for improving the reliability of the RPs.in NPP,bas.d on a Bayes.an Belief Network(BBN)*** s.ructure of BBN models.is.bas.d on the incorporation of failure probability and downtime of the RPs.I&C *** architectures.with dual-s.ate nodes.for the I&C components.were developed for reliability-s.ns.tive analys.s.and availability optimization of the RPs.and to demons.rate the effect of I&C components.on the failure of the entire s.s.em.A reliability framework clarified as.a reliability block diagram trans.ormed into a BBN repres.ntation was.cons.ructed for each architecture to identify which one will fit the required *** res.lts.s.owed that the highes. availability obtained us.ng the propos.d method was.*** are 120 experiments.us.ng two common component importance meas.res.that are applied to define the impact of I&C modules.which revealed that s.me modules.are more ris.y than others.and have a larger effect on the failure of the digital RPs.

关键词： Nuclear power plants Reactor protection s.s.em Bayes.an belief network

Innovative s.rfactant of Gemini-type for dis.olution mitigation of s.eel in pickling HCl medium

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Chines. Journal of Chemical Engineering 2021年第6期34卷 125-133页

作者： Medhat Kamel mohamed Hegazy s.lah Ras.wan mohamed El Kotb Department of Chemis.ry Faculty of ScienceSuez Canal UniversityIsmailia 41522Egypt Egyptian Petroleum Res.arch Ins.itute(EPRI) Nasr CityCairo 11727Egypt

A new s.rfactant of Gemini-type,N,N'-((phthylbis.oxy))bis.ethane-2,1-diyl))bis.N,N-dimethyldodecan-1-aminium bromide)is.prepped&*** dis.olution s.ppres.ion impact of the new compound on s.eel is.performed in 1 mol·L^(-1)HCl environment by means.of chemical and electrochemical *** prepared s.rfactant is.an agreeable dis.olution inhibitor for *** mitigation efficacy ris.s.with the quantity of the *** s.rfactant belongs.to inhibitors.of *** ads.rption of the s.nthes.zed compound followed the Langmuir's.*** negative magnitudes.of bothΔG_(ads.^(θ) andΔH^(ads.)indicate that the ads.rption proces. proceeds.from its.own accord and *** mechanis. of ads.rption is.elucidated by s.anning *** is.es.ablis.ed that the trans.er res.s.ance(R_(ct))value ros.,where the value of the phas. element(CPE)reduced with the amount of s.nthes.zed *** to the experimental data arrived by s.rface tens.on meas.rements.the prepared compound is.a powerful active agent at the air/water boundary.

关键词： Innovative Gemini s.rfactant s.nthes.s Dis.olution mitigation s.eel Pickling HCl media