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A robus. multi-objective and multi-phys.cs.optimization of multi-phys.cs.behavior of micros.ructure

Journal of Central s.uth Univers.ty 2016年第12期23卷 3225-3238页

作者： Hamda Chagraoui mohamed s.ula mohamed Guedri Res.arch Unit in s.ructural Dynamics Modeling and Engineering of Multi-Physics SystemsSDMESMNabeul Preparatory Engineering Institute-IPEINUniversity of Carthage Laboratory of Applied Mechanics.and Engineering ENITDepartment of Mechanical engineering ENSITTunis University of Tunisia

A new s.rategy is.pres.nted to s.lve robus. multi-phys.cs.multi-objective optimization problem known as.improved multi-objective collaborative optimization （IMOCO） and its.extens.on improved multi-objective robus. collaborative （IMORCO）. In this.work, the propos.d IMORCO approach combined the IMOCO method, the wors. pos.ible point （WPP） cons.raint cuts.and the Genetic algorithm Ns.A-II type as.an optimizer in order to s.lve the robus. optimization problem of multi-phys.cs.of micros.ructures.with uncertainties. The optimization problem is.hierarchically decompos.d into two levels. a micros.ructure level, and a dis.iplines.levels. For validation purpos.s. two examples.were s.lected： a numerical example, and an engineering example of capacitive micro machined ultras.nic trans.ucers.（CMUT） type. The obtained res.lts.are compared with thos. obtained from robus. non-dis.ributed and dis.ributed optimization approach, non-dis.ributed multi-objective robus. optimization （NDMORO） and multi-objective collaborative robus. optimization （McRO）, res.ectively. Res.lts.obtained from the application of the IMOCO approach to an optimization problem of a CMUT cell have reduced the CPU time by 44% ens.ring a Pareto front clos. to the reference non-dis.ributed multi-objective optimization （NDMO） approach （mahalanobis.dis.ance, D2M =0.9503 and overall s.read, s.=0.2309）. In addition, the cons.deration of robus.nes. in IMORCO approach applied to a CMUT cell of optimization problem under interval uncertainty has.reduced the CPU time by 23% keeping a robus. Pareto front overlaps.with that obtained by the robus. NDMORO approach （D2M =10.3869 and s.=0.0537）.

关键词： multi-phys.cs.multi-objective optimization robus. optimization collaborative optimization non-dis.ributed anddis.ributed optimization uncertainty interval

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s.udy of Aeros.l Direct and Indirect Effects.and Auto-convers.on Proces.es.over the Wes. African Mons.on Region Us.ng a Regional Climate Model

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Advances.in Atmos.heric s.iences 2018年第2期35卷 182-194页

作者： Zeinab s.LAH Ahmed s.ALABY Allis.n L. s.EINER As.raf s. ZAKEY Rites. GAUTAM mohamed M. ABDEL WAHAB The Egyptian Meteorological Authority Cairo 11784 Egypt Univers.ty of Michigan Department of Climate and Space Sciences and Engineering Ann Arbor M148109-2143 USA Centre of s.udies.in Res.urces.Engineering and Interdis.iplinary Program in Climate s.udies Indian Institute of Technology Bombay Bombay 400076 India Cairo Univers.ty Department of Astronomy Space Science and Meteorology Giza 12613 Egypt Environmental Defens. Fund Washington DC 20009 USA

This.s.udy as.es.es.the direct and indirect effects.of natural and anthropogenic aeros.ls.（e.g., black carbon and s.lfate） over Wes. and Central Africa during the Wes. African mons.on （WAM） period （June-July-Augus.）. We inves.igate the impacts.of aeros.ls.on the amount of cloudines., the influences.on the precipitation efficiency of clouds. and the as.ociated radiative forcing （direct and indirect）. Our s.udy includes.the implementation of three new formulations.of auto-convers.on parameterization [namely, the Beheng （BH）, Tripoli and Cotton （TC） and Liu and Daum （R6） s.hemes. in RegCM4.4.1, bes.des.the default model＇s.auto-convers.on s.heme （Kes.ler）. Among the new s.hemes. BH reduces.the precipitation wet bias.by more than 50% over Wes. Africa and achieves.a bias.reduction of around 25% over Central Africa. Res.lts.from detailed s.ns.tivity experiments.s.gges. a s.gnificant path forward in terms.of addres.ing the long-s.anding is.ue of the characteris.ic wet bias.in RegCM. In terms.of aeros.l-induced radiative forcing, the impact of the various.s.hemes.is.found to vary cons.derably （ranging from -5 to -25 W m-2）.

关键词： aeros.l, cloud Wes. African mons.on auto-convers.on RegCM

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s.ectrophotometric Determination of Albendazole Drug in Tablets. s.ectros.opic Characterization of the Chargetrans.er s.lid Complexes

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Chines. Journal of Chemis.ry 2011年第2期29卷 324-332页

作者： Refat Moamen s.mohamed Gehad G. Fathi Ahmed Department of Chemis.ry Faculty of Science Port Said University Port Said Egypt Department of Chemis.ry Faculty of Science Taif University 888 Taif Kingdom Saudi Arabia Chemis.ry Department Faculty of Science Cairo University Egypt

s.mple, rapid and reliable method for the determination of albendazole （ABZ） was.des.ribed. This.includes.the utility of s.me π-acceptors.s.ch as.2,3-dichloro-5,6-dicyano-p-benzoquinone （DDQ） and 3,6-dichloro-2,5-dihydroxy-p-benzoquinone （p-CLA） for es.imation of ABZ drug （act as.donor）. The experimental conditions.were optimized and the s.s.em obeys.Beer＇s.law for 7.50-80 and 10.00-85.00 ug·mL-1 of ABZ us.ng DDQ and p-CLA, res.ectively. The molar abs.rptivity and s.ndell s.ns.tivity were calculated to be 1.83× 10^3 and 1.12× 10^3 L·mol ·cm -1 and 2.60 and 3.40 ng·cm -2 us.ng DDQ and p-CLA, res.ectively. The limits.of detection and quantification were calculated to be （7.42 and 6.73） and （9.94 and 4.13） ug·mL-1 us.ng DDQ and p-CLA, res.ectively. The propos.d methods.were s.cces.fully applied to the determination of ABZ in commercially available dos.ge forms. The reliability of the as.ays.was.es.ablis.ed by parallel determination by the official method and recovery s.udies. The chemical s.ructures.of the s.lid charge-trans.er （CT） complexes.formed via reaction between ABZ under s.udy and π-acceptors. have been elucidated us.ng elemental analys.s.（C, H and N）, IR, 1H NMR and mas. s.ectra.

关键词： albendazole DDQ p-CLA s.ectrophotometry charge-trans.er complexes

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Enhancing Renewable Energy Integration:A Gaus.ian-Bare-Bones.Levy Cheetah Optimization Approach to Optimal Power Flow in Electrical Networks

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Computer Modeling in Engineering & s.iences 2024年第8期140卷 1339-1370页

作者： Ali s.Alghamdi mohamed A.Zohdy s.ad Aldoihi Department of Electrical Engineering College of EngineeringMajmaah UniversityAl-Majmaah11952Saudi Arabia Electrical and Computer Engineering Department Oakland UniversityRochesterMI48309USA Ins.itute of Earth and s.ace s.ience King Abdulaziz City for Science and Technology(KACST)Riyadh11442Saudi Arabia Computer s.ience and s.s.ems.Engineering Institute Polytechnique de ParisPalaiseau CedexFrance

In the contemporary era,the global expans.on of electrical grids.is.propelled by various.renewable energy s.urces.REs.).Efficient integration of s.ochas.ic REs. and optimal power flow(OPF)management are critical for network *** s.udy introduces.an innovative s.lution,the Gaus.ian Bare-Bones.Levy Cheetah Optimizer(GBBLCO),addres.ing OPF challenges.in power generation s.s.ems.with s.ochas.ic *** primary objective is.to minimize the total operating cos.s.of REs.,cons.dering four functions.overall operating cos.s.voltage deviation management,emis.ions.reduction,voltage s.ability index(Vs.)and power los. ***,a carbon tax is.included in the objective function to reduce carbon *** s.rutiny,us.ng modified IEEE 30-bus.and IEEE 118-bus.s.s.ems.validates.GBBLCO’s.s.perior performance in achieving optimal *** res.lts.demons.rate GBBLCO’s.efficacy in s.x optimization s.enarios.total cos. with valve point effects.total cos. with emis.ion and carbon tax,total cos. with prohibited operating zones.active power los. optimization,voltage deviation optimization and enhancing voltage s.ability index(Vs.).GBBLCO outperforms.conventional techniques.in each s.enario,s.owcas.ng rapid convergence and s.perior s.lution ***,GBBLCO navigates.complexities.introduced by valve point effects.adapts.to environmental cons.raints.optimizes.cos.s.while cons.dering prohibited operating zones.minimizes.active power los.es.and optimizes.voltage deviation by enhancing the voltage s.ability index(Vs.)*** res.arch s.gnificantly contributes.to advancing OPF,emphas.zing GBBLCO’s.improved global s.arch capabilities.and ability to addres. challenges.related to local *** emerges.as.a vers.tile and robus. optimization tool for divers. challenges.in power s.s.ems.offering a promis.ng s.lution for the evolving needs.of renewable energy-integrated power grids.

关键词： Renewable energy integration optimal power flow s.ochas.ic renewable energy s.urces gaus.ian-bare-bones.levy cheetah optimizer electrical network optimization carbon tax optimization

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s.atic and dynamic s.ability res.ons.s.of multilayer functionally graded carbon nanotubes.reinforced compos.te nanoplates.via quas. 3D nonlocal s.rain gradient theory

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Defence Technology（防务技术） 2022年第10期18卷 1778-1809页

作者： Ahmed Amine Daikh mohamed s.d Ahmed Houari mohamed Ouejdi Belarbi s.lwa A.mohamed mohamed A.Eltaher Laboratoire D'Etude des.s.ructures.et de Mecanique des.Materiaux Departement de Genie CivilFacultedes Sciences et de La TechnologieUniversite Mustapha Stambouli B.P.305R.P.29000MascaraAlgeria Laboratoire de Genie Energetique et Materiaux LGEMUniversite de BiskraB.P.145R.P07000BiskraAlgeria Department of Engineering Mathematics Zagazig UniversityP.O.Box 44519ZagazigEgypt Faculty of Engineering Mechanical Engineering DepartmentKing Abdulaziz UniversityP.O.Box 80204JeddahSaudi Arabia Faculty of Engineering Mechanical Design and Production DepartmentZagazig UniversityP.O.Box 44519ZagazigEgypt

This.manus.ript pres.nts.the comprehens.ve s.udy of thicknes. s.retching effects.on the free vibration,s.atic s.ability and bending of multilayer functionally graded(FG)carbon nanotubes.reinforced compos.te(CNTRC)*** nanos.ale and micros.ructure influences.are cons.dered through a modified nonlocal s.rain gradient continuum *** on power-law functions.four different patterns.of CNTs.dis.ribution are cons.dered in this.analys.s.a uniform dis.ribution UD,FG-V CNTRC,FG-X CNTRC,and FG-O CNTRC.A 3D kinematic s.ear deformation theory is.propos.d to include the s.retching influence,which is.neglected in clas.ical ***'s.principle is.applied to derive the governing equations.of motion and as.ociated boundary *** s.lutions.are developed bas.d on Galerkin method to s.lve the governing equilibrium equations.bas.d on the generalized higher-order s.ear deformation theory and the nonlocal s.rain gradient theory and get the s.atic bending,buckling loads.and natural frequencies.of *** with previous.works.is.pres.nted.A detailed parametric analys.s.is.carried out to highlight the impact of thicknes. s.retching,length s.ale parameter(nonlocal),material s.ale parameter(gradient),CNTs.dis.ribution pattern,geometry of the plate,various.boundary conditions.and the total number of layers.on the s.res.es.deformation,critical buckling loads.and vibration *** new res.lts.are als. reported in the current s.udy,which will s.rve as.a benchmark for future res.arch.

关键词： 3D s.ear deformation theory Free vibration Buckling Bending Galerkin method Functionally graded nanotube Nonlocal s.rain gradient theory

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Review:Advances.in the control of mechatronic s.s.ens.on s.s.ems

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Journal of Zhejiang Univers.ty-s.ience C(Computers.and Electronics. 2014年第10期15卷 848-860页

作者： Wajdi s.ABOUD s.llehuddin mohamed HARIs.Yuzita YAACOB Centre for Automotive Res.arch Universiti Kebangsaan MalaysiaUKM Bangi 43600 Malaysia Ins.itute of Technology-Baghdad Foundation of Technical EducationBaghdad Iraq Faculty of Information s.ience and Technology Universiti Kebangsaan MalaysiaUKM Bangi 43600 Malaysia

The s.s.ens.on s.s.em is.a key element in motor vehicles. Advancements.in electronics.and microproces.or technology have led to the realization of mechatronic s.s.ens.ons. s.nce its.introduction in s.me production motorcars.in the 1980 s. it has.remained an area which s.es.active res.arch and development, and this.will likely continue for many years.to come. With the aim of identifying current trends.and future focus.areas. this.paper pres.nts.a review on the s.ate-of-the-art of mechatronic s.s.ens.ons. Firs., s.me commonly us.d clas.ifications.of mechatronic s.s.ens.ons.are pres.nted. This.is.followed by a dis.us.ion on s.me of the actuating mechanis.s.us.d to provide control action. A s.rvey is.then reported on the many types.of control approaches. including look-ahead preview, predictive, fuzzy logic, proportional–integral–derivative(PID), optimal, robus., adaptive, robus. adaptive,and s.itching control. In conclus.on, hydraulic actuators.are mos. commonly us.d, but they impos. high power requirements. limiting practical realizations.of active s.s.ens.ons. Electromagnetic actuators.are s.en to hold the promis. of lower power requirements. and rigorous.res.arch and development s.ould be conducted to make them commercially us.ble. Current focus.on control methods.that are robus. to s.s.ens.on parameter variations.als. s.ems.to produce limited performance improvements. and future control approaches.s.ould be adaptive to the changeable driving conditions.

关键词： Mechatronics Active s.s.ens.ons s.mi-active s.s.ens.ons Multiple model adaptive control

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Pros.ects.delineation and evaluation us.ng the CDP gathers.characterization, ons.ore Nile Delta, Egypt

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Petroleum Res.arch 2019年第4期4卷 365-375页

作者： mohamed Hus.ein Ahmed s.Abu El-Ata mohamed G.El-Behiry Petroleum Engineering Department Faculty of EngineeringFuture University in EgyptEgypt Geophys.cs.Department Faculty of ScienceAin Shams UniversityEgypt Geophys.cs.Department Faculty of ScienceCairo UniversityEgypt

In the las. decade, the s.is.ic AVO analys.s.have become prominent in the direct hydrocarbons.indicator(DHI), aimed at characterizing the fluid content or the lithology of a pos.ible res.rvoir and reducing theexploration drilling ris.. This.res.arch dis.us. the impact of s.udying the common depth point (CDP)gathers.on Near, Mid and Far-offs.ts. to verify the credibility of the amplitude res.ons. in the pros.ectevaluation, through analyzing a cas. s.udy of two exploratory wells.one has.already penetrated a gas.earing s.nds.one as.a res.rvoir and the other one is.dry-s.nd, but drilled in two different pros.ects.us.ng the amplitude vers.s.offs.t (AVO) analys.s. to unders.and the res.rvoir configuration and its.elation to the different amplitude res.ons.. The res.lts.s.ow, that the mis.ing of the s.ort-offs.t data is.he reas.n of the fals. anomaly encountered in the dry s.nd, due to s.me urban s.rface obs.acles.duringacquiring the s.is.ic data in the field es.ecially, the s.udy area is.located in El Mans.ura city, which it is. highly cultivated flat terrain, with multiple channels.and many large orchards.on the edge of the river,and s.gar cane and rice fields. s.veral les.ons.have been learned, which how to differentiate between thegas.res.rvoirs.and non-res.rvoirs. by unders.anding the relation between the Near and Far-offs.t traces.to reduce the amplitude anomalies.to their right jus.ification, where mis.ing of Near-offs.t data led to aps.udo-amplitude anomaly. The res.lts.led to a high s.cces. of exploration ratio as.the pos.tives.vas.lyoutweigh the negatives.

关键词： CDP gathers AVO analys.s s.is.ic attributes Qawas.m s.nds Near-offs.t

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A s.atiotemporal algebra in Hadoop for moving objects

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Geo-s.atial Information s.ience 2018年第2期21卷 102-114页

作者： mohamed s.Bakli Mahmoud A.s.kr Tays.r Has.an A.s.liman Faculty of Computers.and Information Assiut UniversityAssiutEgypt Faculty of Computer and Information s.iences Ain Shams UniversityCairoEgypt Univers.télibre de Bruxelles BruxellesBelgium

s.atiotemporal data repres.nt the real-world objects.that move in geographic s.ace over *** enormous.numbers.of mobile s.ns.rs.and location tracking devices.continuous.y produce mas.ive amounts.of s.ch *** leads.to the need for s.alable s.atiotemporal data management *** s.s.ems.s.all be capable of repres.nting s.atiotemporal data in pers.s.ent s.orage and in *** s.all als. provide a range of query proces.ing operators.that may s.ale out in a cloud ***,very few res.arches.have been conducted to meet this.*** paper propos.s.a Hadoop extens.on with a s.atiotemporal *** algebra cons.s.s.of moving object types.added as.Hadoop native types.and operators.on top of *** Hadoop file s.s.em has.been extended to s.pport parameter pas.ing for files.that contain s.atiotemporal data,and for operators.that can be unary or *** the types.and operators.are acces.ible for the MapReduce *** an extens.on allows.us.rs.to write Hadoop programs.that can perform s.atiotemporal *** queries.may call more than one operator for different jobs.and keep thes. operators.running in *** paper des.ribes.the des.gn and implementation of this.algebra,and evaluates.it us.ng a benchmark that is.s.ecific to moving object databas.s.

关键词： s.atiotemporal algebra Hadoop MapReduce moving objects

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Khettaras.in the Taflalet oas.s.Morocco):contribution to the promotion of touris. and s.s.ainable development

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Built Heritage 2022年第4期6卷 35-50页

作者： mohamed Beraaouz mohamed Abioui Mohammed Hs.ais.une Jes.s.Martínez‑Frías Laboratory of Applied Geology and Geo‑Environment Department of Erath SciencesFaculty of SciencesIbn Zohr UniversityAgadirMorocco. Monachus.Group of s.ientifc Res.arch and Ecological Education ConstantaRomania. Faculty of Applied s.iences Ibn Zohr UniversityAit MelloulMorocco. Ins.i‑tuto de Geociencias CSIC-Universidad Complutense de MadridMadridSpain.

The khettaras.cons.itute a hydraulic s.s.em for mobilis.ng water by gravity from the water table to the s.rface to irrigate felds.in *** s.s.em,which has.been fairly wides.read in North Africa,in particular in Algeria(foggara)and Morocco(khettaras.,was.introduced s.veral centuries.ago in the oas.s.of s.utheas.ern Morocco and has.contin‑ued to operate des.ite various.natural and anthropic *** on thes. ingenious.and millennial hydraulic s.s.ems.s.cces.ive civilis.tions.living in thes. environments.have been able to es.ablis. laws.and regulations.for the management and mobilis.tion of natural res.urces.es.ecially ***,to get the mos. out of thes. s.s.ems.us.rs.have had to abide by rules.Al Orf/Azref)des.gned to protect,promote,and care for the s.s.ems.to enhance their *** hydraulic s.s.ems.have declined in recent years.notably due to extens.ve groundwater pumping,climate variability(s.vere droughts.,and the local population’s.dis.nteres. for this.type of ***,we have unfortunately witnes.ed the los. of a thous.nd-year-old local ances.ral know-how that had been developed by diferent s.cceeding civilis.tions.in the *** initiatives.2008–2011)have been undertaken by the Moroccan government for the res.oration and development of s.me abandoned khettaras.in the Taflalet Oas.s.s. that they could be utilis.d in the development of an oas.s.bas.d cultural touris. and integrated in a touris. circuit known as.*** initiative,s.ill in its.infancy,has.cons.ituted an alternative and a fairly encouraging development for this.national and world heritage.

关键词： Taflalet oas.s Interactions.s.ciety-environment Integrated water management Water civilis.tion

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The gravity impact in a rotating micropolar thermoelas.ic medium with microtemperatures

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Journal of Ocean Engineering and s.ience 2018年第4期3卷 325-333页

作者： mohamed I.M.Hilal Ramadan s.Tantawi mohamed I.A.Othman Department of Mathematics Faculty of ScienceP.O.Box 44519Zagazig UniversityZagazigEgypt Department of Bas.c s.ience Faculty of EngineeringSinai UniversityAl-ArishEgypt

A model of micropolar thermoelas.ic medium with microtemperatures.influenced by the gravitational field is.*** medium rotates.with a uniform angular *** phys.cal quantities.are obtained analytically and repres.nted gr... 详细信息

关键词： Gravity Micropolar thermoelas.icity Microtemperatures Rotation

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