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Experimenta. va.ida.ion of double-fed induction genera.or in oscilla.ing wa.er column using circula.ory system-ba.ed optimiza.ion

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Clea. Energy 2024年第2期8卷 127-143页

作者： Ba.em E.elna.hi ahmed M.Isma.el Fa.hy el Sa.ed a.del-Ka.er Reha. H.Moha.med M.N.a.elwha. electrica. Power a.d Ma.hine Depa.tment Suez Canal UniversityIsmailiaEgypt electrica. Power a.d Ma.hine Depa.tment Menoufia UniversityMenoufiaEgypt Computer a.d Control Depa.tment Suez Canal UniversityIsmailiaEgypt

This pa.er va.ida.es the optima. opera.ion for a.grid-connected double-fed induction genera.or(DFIG)in a. oscilla.ing wa.er column power pla.t(OWCPP).This study presents a.novel optimiza.ion technique ca.led the circula.ory system-ba.ed optimiza.ion(CSBO)a.proa.h to develop six a.a.tive fuzzy logic controllers(a.LCs)with 30 pa.a.eters a.d compa.e them to cha.tic-billia.ds optimiza.ion(C-BO)a.d genetic a.gorithm(Ga..The proposed controller is a.so compa.ed with a.proportiona.-integra. differentia.(PID)controller ba.ed on a.self-a.a.tive globa.-best ha.mony sea.ch(SGHS).CSBO-ba.ed a.LCs a.e fully investiga.ed under different scena.ios a.d experimented with using a.rea.-time interfa.e *** results of using CSBO-a.LCs revea.ed a.fa.t time response,fa.t convergence,less overshoot a.d minima. error compa.ed with those a.hieved with C-BO-a.LC,SGHS-PID a.d Ga.a.LC during different ca.e *** CSBO-ba.ed a.LCs ensure ma.imum power from the DFIG in a. OWCPP a.d enha.ce dyna.ic response with very low *** results show tha. the CSBO shows better power tra.king by 25%a. compa.ed with C-BO,by 45%when compa.ed with the Ga.a.d by 56%when compa.ed with ***,the integra. a.solute errors of six controllers a.e investiga.ed to demonstra.e the fea.ibility of *** root mea. squa.e of the errors of six controllers using CSBO is improved by 68.27%when compa.ed with Ga.by 22.57%when compa.ed with C-BO a.d by 38.42%when compa.ed with *** indica.ors demonstra.e the fea.ibility of CSBO when compa.ed with other a.gorithms with the sa.e OWCPP.

关键词： circula.ory system-ba.ed optimiza.ion a.proa.h a.a.tive fuzzy logic controller grid-tied oscilla.ing wa.er column power pla.t ma.imum power point tra.king

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Ultra.ong hydroxya.a.ite-ba.ed forwa.d osmosis membra.e for freshwa.er genera.ion

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Frontiers of Chemica. Science a.d Engineering 2024年第9期18卷 37-49页

作者： Moha.ed Ga.a. Goma. Ha.dy Ma.moun a.del-Gha.a. Fra.cesco Ga.ia.o Fra.cesca.Russo a.berto Figoli el-Sa.ed a.i a.del-a.l a.del-Ha.im Ta.a.Ka.dil Ba.a. ahmed Sa.a. Centra. Meta.lurgica. Resea.ch a.d Development Institute(CMRDI) 11421 CairoEgypt Chemistry Depa.tment Faculty of ScienceHelwan University11795 CairoEgypt Institute on Membra.e Technology(CNR-ITM) 87036 RendeItaly

Increa.ing globa. wa.er shorta.es a.e a.celera.ing the pa.e of membra.e ma.ufa.turing,which genera.es ma.y environmenta.ly ha.mful *** cha.lenges need a.ra.ica. rethink of developing innova.ive membra.es tha. ca. a.dress freshwa.er production without genera.ing environmenta.ly ha.mful *** work utilized the synthesized ultra.long hydroxya.a.ite(UHa.by the solvotherma. method using the green solvent oleic a.id in prepa.ing UHa.ba.ed forwa.d osmosis *** membra.es were developed using different loa.ing ra.ios of gra.hene oxide(GO)by va.uum-a.sisted filtra.ion *** prepa.ed GO/UHa.membra.es were identified using X-ra. diffra.tion,sca.ning electron microscope,Fourier-tra.sform infra.ed spectroscopy,a.d X-ra. photoelectron *** conta.t a.gle a.d pore size distribution were determined for the obta.ned GO/UHa.*** obta.ned hiera.chica. porous structure in the prepa.ed membra.es with interconnected cha.nels results in a.sta.le wa.er flux with reverse sa.t *** best wa.er flux ra.e of 42±2 L·m^(–2)·h^(–1)wa. a.hieved using the 50 mg GO/UHa.membra.e,which is 3.3 times higher tha. the pristine membra.e,a.d a.reverse sa.t flux of 67 g·m^(-2)·h^(–1).The obta.ned results showed a.promising ca.a.ility of a.new genera.ion of susta.na.le inorga.ic-ba.ed membra.es tha. ca. be utilized in freshwa.er genera.ion by energy-efficient techniques such a. forwa.d osmosis.

关键词： forwa.d osmosis ultra.long hydroxya.a.ite gra.hene oxide inorga.ic-ba.ed membra.e

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Consecutive na.row a.d broa. qua.i-periodic fa.t-propa.a.ing wa.e tra.ns a.socia.ed with a.fla.e

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Science China.Physics,Mecha.ics & a.tronomy) 2024年第5期67卷 200-211页

作者： Xinping Zhou Yua.deng Shen Chengrui Zhou Zeha. Ta.g ahmed ahmed Ibra.im College of Physics a.d electronic Engineering Sichuan Normal UniversityChengdu 610068China Sta.e Key La.ora.ory of Spa.e Wea.her Chinese Academy of SciencesBeijing 100190China Yunna. Observa.ories Chinese Academy of SciencesKunming 650216China Depa.tment of Physics a.d a.tronomy College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia

The excita.ion mecha.ism of corona. qua.i-period fa.t-propa.a.ing(QFP)wa.e tra.ns rema.ns *** a.mospheric Ima.ing a.sembly onboa.d the Sola. Dyna.ics Observa.ory observa.ions,we study a.na.row a.d a.broa. QFP wa.e tra.ns excited one a.ter a.other during the successive eruptions of fila.ents hosted within a.fa.-spine ma.netic system on October 20,*** consecutive occurrence of these two types of QFP wa.e tra.ns in the sa.e event provides a. excellent opportunity to explore their excita.ion mecha.isms a.d compa.e their physica. *** observa.iona. results revea. tha. na.row a.d broa. QFP wa.e tra.ns exhibit distinct speeds,periods,energy fluxes,a.d rela.ive intensity a.plitudes,a.though origina.ing from the sa.e a.tive region a.d being a.socia.ed with the sa.e GOES C2.9 *** wa.elet a.a.ysis,we find tha. the na.row QFP wa.e tra.n sha.es a.simila. period with the fla.e itself,suggesting its possible excita.ion through the pulsed energy relea.e in the ma.netic reconnection process tha. genera.ed the a.compa.ying *** the other ha.d,the broa. QFP wa.e tra.n a.pea.s to be a.socia.ed with the energy pulses relea.ed by the successive expa.sion a.d unwinding of fila.ent ***,it is pla.sible tha. the broa. QFP wa.e tra.n wa. a.so excited by the sequentia. stretching of closed ma.netic field lines driven by the erupting *** findings shed light on the different excita.ion mecha.isms a.d origins of the QFP wa.e tra.ns.

关键词： na.row wa.e excita.ion

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Therma. hea. flux distribution prediction in a. electrica. vehicle ba.tery cell using finite element a.a.ysis a.d neura. network

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Green Energy a.d Intelligent Tra.sporta.ion 2024年第3期3卷 54-62页

作者： Luttfi a.a.-Ha.da. La.if Ibra.eem ahmed I.el-Seesy a.a. a.dulha.y Ja.er Sina. a.a.-Ha.da. Reza.Khosroza.eh Tra.ning a.d Workshops Center University of TechnologyBaghdadIraq Mecha.ica. Engineering Depa.tment Memorial University of NewfoundlandNewfoundland and LabradorCanada Mecha.ica. Engineering Depa.tment Benha Faculty of EngineeringBenha UniversityBenhaEgypt Mecha.ica. Engineering Depa.tment University of TechnologyBaghdadIraq Civil Engineering Depa.tment University of TechnologyBaghdadIraq

In terms of ba.tery design a.d eva.ua.ion,electric Vehicles(EVs)a.e receiving a.grea. dea. of a.tention a. a.modern,eco-friendly,susta.na.le tra.sporta.ion *** this pa.er,a.novel ba.tery pa.k is designed to ma.nta.n a.uniform tempera.ure distribution,a.lowing the ba.tery to opera.e within its optima. tempera.ure *** proposed ba.tery design is pa.t of a.ma.n cha.nel where a.portion of cool a.r will pa.s from a. inlet then exit from a. outlet where a.uniform tempera.ure distribution is ***,a.3-D model of a.ba.tery cell wa. crea.ed,followed by therma. simula.ion for 15C,25C,a.d 35C a.bient *** simula.ion results revea. tha. the tempera.ure distribution is nea.ly uniform,with slightly higher va.ues in the middle portion of the cell ***,using finite element a.a.ysis(FEa.,it wa. determined tha. the hea. flux per unit a.ea.is nea.ly uniform with a.slight increa.e a. the ***,a.ma.hine lea.ning model is proposed by utilizing a.neura. network(NN).La.tly,the hea. flux va.ues were predicted using the NN model tha. wa. *** model wa. a.sessed ba.ed on sta.istica. mea.ures where a.root mea. squa.e error(RMSE)va.ue of 0.87%wa. *** NN outperformed FEa.in terms of time consumption with a.high prediction a.cura.y,levera.ing the potentia. of a.opting ma.hine lea.ning over FEa.in rela.ed opera.iona. a.sessments.

关键词： EV ba.tery Therma. distribution Finite element a.a.ysis Neura. network Hea. flux

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Study of sca.a. pa.ticles through the Klein–Gordon equa.ion under ra.nbow gra.ity effects in Bonnor–Melvin-La.bda.spa.e-time

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Communica.ions in Theoretica. Physics 2024年第4期76卷 113-125页

作者： Fa.zuddin ahmed a.delma.ek Bouzena.a Depa.tment of Physics University of Science&Technology MeghalayaRi-Bhoi793101India La.ora.ory of theoretica. a.d a.plied Physics Echahid Cheikh Larbi Tebessi UniversityAlgeria

In our investiga.ion,we explore the qua.tum dyna.ics of cha.ge-free sca.a. pa.ticles through the Klein–Gordon equa.ion within the fra.ework of ra.nbow gra.ity,considering the Bonnor–Melvin-La.bda.BML)spa.e-time *** BML solution is cha.a.terized by the ma.netic field strength a.ong the a.is of the symmetry direction which is rela.ed to the cosmologica. consta.tΛa.d the topologica. pa.a.eterαof the *** beha.ior of cha.ge-free sca.a. pa.ticles described by the Klein–Gordon equa.ion is investiga.ed,utilizing two sets of ra.nbow functions:(i)f(χ)=■,h(χ)=1 a.d(ii)f(χ)=1,h(χ)=1+βХ/*** 0a.ticle's energy,Ep is the Pla.ck's energy,a.dβis the ra.nbow *** obta.n the a.proxima.e a.a.ytica. solutions for the sca.a. pa.ticles a.d conduct a.thorough a.a.ysis of the obta.ned ***,we study the qua.tum dyna.ics of qua.tum oscilla.or fields within this BML spa.e-time,employing the Klein–Gordon *** a.so,we choose the sa.e sets of ra.nbow functions a.d obta.n the a.proxima.e eigenva.ue solution for the oscilla.or ***,we demonstra.e tha. the rela.ivistic a.proxima.e energy profiles of cha.ge-free sca.a. pa.ticles a.d oscilla.or fields get influenced by the topology of the geometry a.d the cosmologica. ***,we show tha. the energy profiles of sca.a. pa.ticles receive modifica.ions from the ra.nbow pa.a.eter a.d the qua.tum oscilla.or fields by both the ra.nbow pa.a.eter a.d the frequency of oscilla.ion.

关键词： qua.tum fields in curved spa.e-time rela.ivistic wa.e equa.ions solutions of wa.e equa.ions bound-sta.e specia. functions

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Mea.uring Impa.t of Lea. Ma.ufa.turing Tools for Continuous Improvement on Economic Susta.na.ility

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Journa. of Systems Science a.d Systems Engineering 2024年第4期33卷 452-474页

作者： Luis Ja.ier Márquez Figueroa.Jorge Luis Ga.cía.a.ca.a. ahmed I.Osma. a.fonso Jesús Gil López Ya.ha. a.ya.fa. Mika.Silla.pää Ma.douh el Ha. a.sa. Depa.tment of electrica. Engineering a.d Computer Science Universidad Autónoma de Ciudad JuárezCiudad JuárezChihuahuaMéxico Depa.tment of Industria. Engineering a.d Ma.ufa.turing Universidad Autónoma de Ciudad JuárezCiudad JuárezChihuahuaMéxico School of Chemistry a.d Chemica. Engineering Queens UniversityBelfastNorthern IrelandUK Depa.tment of Economic a.d Ma.a.eria. Sciences University of La RiojaLa RiojaSpain Depa.tment of Chemica. Engineering University of JohannesburgJohannesburgSouth Africa Depa.tment of Susta.na.le a.d Renewa.le Energy Engineering University of SharjahSharjahUAE

Using Lea. Ma.ufa.turing(LM)tools in production processes is crucia. for compa.ies’economic,environmenta.,a.d socia. susta.na.ility *** study shows a.structura. equa.ion model(SEM)tha. shows the rela.ionship between LM Tools like Ka.zen(Ka.),Gemba.GEM),Va.ue Strea. Ma.ping(VSM)a.d Key Performa.ce Indica.or(KPI)with Economic Susta.na.ility(ECS).Seven hypotheses were eva.ua.ed with da.a.from 179 responses to a.questionna.re a.out the Mexica. ma.uila.ora.industry,showing tha. these va.ia.les a.e *** a.95%confidence level,the model wa. eva.ua.ed using the pa.tia. lea.t squa.es *** findings indica.e tha. the rela.ionships between Ka. a.d GEM a.d Ka. a.d VSM ha.e the strongest rela.ionship,followed by VSM a.d ECS;however,VSM ha. the strongest effect on *** on these findings,it is recommended tha. ma.a.ers a.opt a.continuous improvement(Ka.)a.proa.h ba.ed on working directly on the shop floor(GEM a.d VSM)to support their decisions rega.ding economic growth(ECS).

关键词： Lea. ma.ufa.turing economic susta.na.ility structura. equa.ion model qua.ity improvement

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a.plica.ion of Synthetic Iron Oxyhydroxide with Influencing Fa.tors for Remova. of a.(Ⅴ) a.d a.(Ⅲ) from Groundwa.er

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Journa. of Ea.th Science 2024年第3期35卷 998-1009页

作者： Sha.eel ahmed Ta.pur Muha.ma. Yousuf Ja. Ba.och Chunli Su Ja.ed Iqba. a.iz ahmed Ha.eez ahmed Ta.pur School of Environmenta. Studies China University of GeosciencesWuhan 430078China DiSPUTer Department of PsychologicalHealth and Territory SciencesUniversity“G.d′Annunzio”Chieti-Pescara66100 ChietiItaly College of New Energy a.d Environment Jilin UniversityChangchun 130021China School of Pla.t Environment and Soil SciencesLouisiana State University Agricultural CentreBaton Rouge LA 70803USA Depa.tment od Engineering a.d Geology University“G.d′Annunzio”Chieti-Pescara66100 ChietiItaly

Synthesized iron oxyhydroxide wa. a.plied for the a.sorptive remova. of a.(V)a.d a.(III)from the a.ua. ***,this investiga.ion highlighted the synergistic effect of ca.cium ca.bona.e in conjunction with iron oxyhydroxide,resulting in enha.ced remova. *** experiment wa. conducted under va.ious conditions:concentra.ion,dosa.e,pH,a.ita.ion,a.d *** cha.a.teriza.ions such a. Bruna.er Emmett Teller,X-ra. diffra.tion,sca.ning electron microscopy,a.d Fourier tra.sform infra.ed spectroscopy were implied to understa.d a.sorption *** La.gmuir model revea.ed optima. concentra.ions for a.(V)=500μg/L a. pH-5 a.d a.(III)=200μg/L a. pH-7,resulting in 95%a.d 93%a.sorption efficiencies,*** a.sorption ca.a.ities“qm”were found to be 1266.943μg/g for a.(V)a.d 1080.241μg/g for a.(III).Freundlich model demonstra.ed fa.ora.le a.sorption by indica.ing“n>1”such a. a.(V)=2.542 a.d a.(III)=2.707;simila.ly,the specia.ion fa.tor“RLa. a.(V)=0.1 a.d a.(III)=0.5,*** kinetic study presented a.pseudo-second-order model a. best fitted,indica.ing throughout chemisorption processes for removing a.(V)a.d a.(III).Furthermore,incorpora.ing ca.cium ca.bona.e presented a.significa.t lea. in the remova. efficiency,indica.ing a.(V)from 95%to 98%a.d a.(III)from 93%to 96%,*** findings offer profound motiva.ion for developing effective a.d susta.na.le solutions to ta.kle a.senic conta.ina.ion,underscoring the exceptiona. promise of iron oxyhydroxide in conjunction with ca.cium ca.bona.e to a.hieve ma.imum remova. efficiency.

关键词： a.sorption a.senic a.(V) a.(III) iron oxyhydroxide isotherms kinetics groundwa.er.

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Topologica. defects on solutions of the non-rela.ivistic equa.ion for extended double ring-sha.ed potentia.

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Communica.ions in Theoretica. Physics 2024年第8期76卷 29-43页

作者： Ba.redine Boudjeda. Fa.zuddin ahmed Na.ura. Sciences a.d Ma.eria.s La.ora.ory University Center Abdelhafid BoussoufMilaAlgeria Depa.tment of Ma.hema.ics Institute of Mathematics and Computer ScienceUniversity Center Abdelhafid BoussoufMilaAlgeria Depa.tment of Physics University of Science&Technology MeghalayaRi-Bhoi793101India

In this study, we focus into the non-rela.ivistic wa.e equa.ion described by the Schrodinger equa.ion, specifica.ly considering a.gula.-dependent potentia.s within the context of a.topologica. defect ba.kground genera.ed by a.cosmic string. Our prima.y goa. is to explore qua.i-exa.tly solva.le problems by introducing a. extended ring-sha.ed potentia.. We utilize the Bethe a.sa.z method to determine the a.gula. solutions, while the ra.ia. solutions a.e obta.ned using specia. functions. Our findings demonstra.e tha. the eigenva.ue solutions of qua.tum pa.ticles a.e intrica.ely influenced by the presence of the topologica. defect of the cosmic string,resulting in significa.t modifica.ions compa.ed to those in a.fla. spa.e ba.kground. The existence of the topologica. defect induces a.tera.ions in the energy spectra. disrupting ***, we extend our a.a.ysis to study the sa.e problem in the presence of a.ring-sha.ed potentia. a.a.nst the ba.kground of a.other topologica. defect geometry known a. a.point-like globa. monopole. Following a.simila. procedure, we obta.n the eigenva.ue solutions a.d a.a.yze the results. Rema.ka.ly, we observe tha. the presence of a.globa. monopole lea.s to a.decrea.e in the energy levels compa.ed to the fla. spa.e results. In both ca.es, we conduct a.thorough numerica. a.a.ysis to va.ida.e our findings.

关键词： non-rela.ivistic wa.e-equa.ion:Schrödinger equa.ion topologica. defect:cosmic string point-like globa. monopole potentia.:extended ring-sha.ed potentia.s Bethe a.sa.z method

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a.a.ysis of cerium substitution in Co-Sr ba.ed spinel ferrites for high frequency a.plica.ion

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Journa. of Ra.e Ea.ths 2024年第9期42卷 1755-1763,I0005页

作者： La.ra.Khuda.sh Ina. a.ahmed Syeda.Ra.ia.Eja. Sa.ja. a.ma. Kha. Ya.ir a.Ha.eem Moha.ed M.Ibra.im Ma.mood a.i Ha.iz Muha.ma. Ta.ir Fa.id Zeinhom M.el-Ba.y Depa.tment of Physics Faculty of ScienceJazan UniversityJazan45142Saudi Arabia Depa.tment of Chemistry Faculty of ScienceKing Khalid UniversityAbha62224Saudi Arabia Depa.tment of Physics The Government Sadiq College Women UniversityBahawalpur63100Pakistan Institute of Physics Khwaja Fareed University of Engineering and Information TechnologyRahim Yar Khan64200Pakistan Depa.tment of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Centre of Excellence in Solid Sta.e Physics University of the PunjabLahorePakistan Depa.tment of Physics Government CollegeTaunsa Sharif32200Pakistan Depa.tment of Chemistry Faculty of ScienceAl-Azhar UniversityNasr City11884CairoEgypt

Spinel ferrites exhibit exceptiona. ma.netic properties,ma.ing them a.distinctive cla.s of ma.netic *** sol-gel technique wa. utilized for the synthesis of spinel ferrites with the chemica. formula.Co_(0.6)Sr_(0.4)Ce_(x)Fe_(2-x)O_(4). Following tha.,a.comprehensive X-ra. diffra.tion a.a.ysis unveiled the crysta.line cubic structure of the synthesized *** the utiliza.ion of the M-H loop a.proa.h,the ferroma.netic a.tributes of ferrites were a.sessed,a.d the a.simila.ion of ra.e ea.th elements led to substa.tia. enha.cements in sa.ura.ion ma.netiza.ion,rema.ence,a.d *** ferrites with a.high concentra.ion of ra.e ea.th elements ha.e improved direct current resistivity a.d a.tiva.ion *** loga.ithm of a.ma.eria.'s resista.ce increa.ed from 5.29 to 8.12 Ω·cm a. cerium is *** a.cha.ge in the a.ount of cerium,the a.tiva.ion energy goes up from 0.19 to *** cha.ging the frequency from 5.5 to 9.5 GHz,the dielectric cha.a.teristics were *** the frequency goes up,the dielectric consta.t goes *** ferrites tha. ha.e been ma.e better in every wa. ca. be used in high-frequency a.plica.ions.

关键词： a.tiva.ion energy DC electrica. resista.ce Rema.ence ma.netiza.ion Coba.t strontium spinel ferrites High frequency a.plica.ion Ra.e ea.ths

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Exa.t a.d heuristic formula. to compute the geodetic height from the ellipse equa.ion

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Geodesy a.d Geodyna.ics 2024年第2期15卷 150-155页

作者： Moha.ed eleiche ahmed Ha.di Ma.si Construction Depa.tment Faculty of EngineeringEgyptian Russian UniversityCairoEgypt Istituto Na.iona.e di Geofisica.e Vulca.ologia Sezione di PisaPisaPlItaly

The conversion of the ca.tesia. coordina.es of a.point to its geodetic equiva.ent coordina.es in reference to the geodetic ellipsoid is one of the ma.n cha.lenges in *** ellipse equa.ion in the meridia. pla.e significa.tly influences the va.ue of the geodetic *** resea.ch a.a.yzes this influence a.d how it ca. contribute to their *** study investiga.es the ma.hema.ica. rela.ion between them a.d presents a. exa.t formula.rela.ing to the geodetic height a.d the ellipse *** a.dition,a.heuristic formula.for the rela.ion between the geodetic height a.d the ellipse equa.ion is proposed,which is independent of the geodetic la.itude a.d ha. a.rela.ive a.cura.y better tha. 99.9 %.The ca.cula.ion is sta.le,a.d the cost is low.

关键词： ellipse equa.ion Geodetic height Heuristic geodetic height

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