检索结果-南通市图书馆

Frontie.s of Structural and Civil e.gine.ring 2024年第7期18卷 1050-1065页

作者： ahmed M.ATTA Re.a N.Be.iRY Mohamme. i.HARAZ Structural e.gine.ring De.artme.t Faculty of EngineeringTanta UniversityTanta 33511Egypt Nile.Highe. institute.for e.gine.ring and Te.hnology Mansoura 11001Egypt

Re.e.tly,inve.te. T-be.ms have.be.n use. in re.nforce. concre.e.RC)bridge. to support transve.se.pre.ast *** T-be.ms,contrary to practice.with conve.tional be.ms,are.loade. on the.flange. uppe. *** loading configuration cause. hange. failure.due.to the.ge.e.ation of ve.tical te.sile.stre.se. ne.r the.bottom of the.*** ke. purpose.of this study is to inve.tigate.the.e.ficie.cy of ve.tical e.te.nal pre.tre.sing stainle.s-ste.l bars in mitigating non-ductile.hange. failure.in re.nforce. concre.e.inve.te. *** e.pe.ime.tal study on six inve.te.-T be.ms,including two un-stre.gthe.e. spe.ime.s,was carrie. *** study showe. that the.value.of the.pre.tre.sing le.e. had a conside.able.impact on the.pe.formance.of hange. me.hanism in re.ation to crack patte.n,ultimate.loads,cracking be.avior,load-de.le.tion,strains,and *** e.pe.ime.tal re.ults indicate. that the.sugge.te. me.hod for stre.gthe.ing inve.te. T-be.ms had e.ficacy in re.ucing the.se.iousne.s of the.non-ductile.hange. failure.and re.ulte. in a stre.gth incre.se.of up to 53% whe. compare. to that of the.un-stre.gthe.e. ***,two analytical mode.s for e.timating the.hange. capacity and the.ave.age.crack width of the.stre.gthe.e. RC inve.te. T-be.ms we.e.*** mode.s that we.e.propose. e.hibite. a high de.re. of agre.me.t with the.e.pe.ime.tal re.ults.

关键词： RC bridge. inve.te. T-be.ms stre.gthe.ing hange. failure e.te.nal pre.tre.sing

A Hybrid Classification and ide.tification of Pne.monia Using African Buffalo Optimization and CNN from Che.t X-Ray image.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Compute. Mode.ing in e.gine.ring & Scie.ce. 2024年第3期138卷 2497-2517页

作者： Nasse. Alalwan ahmed i.Taloba Amr Aboze.d ahmed ibrahim Alzahrani Ali H.Al-Bayatti Compute. Scie.ce.De.artme.t Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia information Syste. De.artme.t Faculty of Computers and InformationAssiut UniversityAssiutEgypt Mathe.atics De.artme.t Faculty of ScienceAl-Azhar UniversityCairoEgypt Cybe. Te.hnology institute.CTi) De Montfort UniversityLeicesterUK

An illne.s known as pne.monia cause. inflammation in the.*** the.e.is so much information available.fromvarious X-ray image.,diagnosing pne.monia has typically prove. *** improve.image.quality and spe.d up the.diagnosis of pne.monia,nume.ous approache. have.be.n *** date.se.e.al me.hods have.be.n e.ploye. to ide.tify *** Convolutional Ne.ral Ne.work(CNN)has achie.e. outstanding succe.s in ide.tifying and diagnosing dise.se. in the.fie.ds of me.icine.and ***,the.e.me.hods are.comple.,ine.ficie.t,and impre.ise.to analyze.a big numbe. of *** this pape.,a ne. hybrid me.hod for the.automatic classification and ide.tification of Pne.monia from che.t X-ray image. is *** propose. me.hod(ABOCNN)utilize. the.frican BuffaloOptimization(ABO)algorithmto e.hance.NNpe.formance.and *** We.nme. filte. is e.ploye. for pre.proce.sing to e.iminate.unwante. noise. from che.t X-ray image.,followe. by fe.ture.e.traction using the.Gre. Le.e. Co-Occurre.ce.Matrix(GLCM)*** fe.ture. are.the. se.e.te. from the.datase. using the.ABO algorithm,and ultimate.y,high-pe.formance.de.p le.rning using the.CNN approach is introduce. for the.classification and ide.tification of *** re.ults on various datase.s showe. that,whe. contraste. to othe. approache.,the.ABO-CNN outpe.forms the. all for the.classification *** propose. me.hod e.hibits supe.ior value. like.96.95%,88%,86%,and 86%for accuracy,pre.ision,re.all,and F1-score.re.pe.tive.y.

关键词： African buffalo optimization convolutional ne.ral ne.work pne.monia X-ray

ioT Task Offloading in e.ge.Computing Using Non-Coope.ative.Game.The.ry for He.lthcare.Syste.s

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Compute. Mode.ing in e.gine.ring & Scie.ce. 2024年第5期139卷 1487-1503页

作者： Dine.h Mavaluru Che.tupally Anil Carie.ahmed i.Alutaibi Satish Anamalamudi Bayapa Re.dy Narapure.dy Murali Krishna e.duri Md e.az ahmed School of Computing and informatics Saudi Electronic UniversityRiyadhSaudi Arabia De.artme.t of Compute. e.gine.ring SRM University APGunturIndia Colle.e.of Compute. and information Scie.ce. Majmaah UniversityAl Majma’ahSaudi Arabia De.artme.t of Public He.lth College of Applied Medical SciencesKing Khalid UniversityAbhaSaudi Arabia

in this pape.,we.pre.e.t a compre.e.sive.syste. mode. for industrial inte.ne. of Things(iioT)ne.works e.powe.e. by Non-Orthogonal Multiple.Acce.s(NOMA)and Mobile.e.ge.Computing(Me.)*** ne.work comprise. e.se.tial compone.ts such as base.stations,e.ge.se.ve.s,and nume.ous iioT de.ice. characte.ize. by limite. e.e.gy and computing *** ce.tral challe.ge.addre.se. is the.optimization of re.ource.allocation and task distribution while.adhe.ing to stringe.t que.e.ng de.ay constraints and minimizing ove.all e.e.gy *** syste. ope.ate. in discre.e.time.slots and e.ploys a quasi-static approach,with a spe.ific focus on the.comple.itie. of task partitioning and the.manage.e.t of constraine. re.ource. within the.iioT *** study make. valuable.contributions to the.fie.d by e.hancing the.unde.standing of re.ource.fficie.t manage.e.t and task allocation,particularly re.e.ant in re.l-time.industrial *** re.ults indicate.that our propose. algorithmsignificantly outpe.forms e.isting approache.,re.ucing que.e.backlog by 45.32% and 17.25% compare. to SMRA and ACRA while.achie.ing a 27.31% and 74.12% improve.e.t in Qn ***,the.algorithme.fe.tive.y balance. comple.ity and ne.work pe.formance.as de.onstrate.whe. re.ucing the.numbe. of de.ice. in e.ch group(Ng)from 200 to 50,re.ulting in a 97.21% re.uction in comple.ity with only a 7.35% incre.se.in e.e.gy *** re.e.rch offe.s a practical solution for optimizing iioT ne.works in re.l-time.industrial se.tings.

关键词： inte.ne. of Things e.ge.computing offloading NOMA

Conse.utive.narrow and broad quasi-pe.iodic fast-propagating wave.trains associate. with a flare

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Scie.ce.China(Physics,Me.hanics & Astronomy) 2024年第5期67卷 200-211页

作者： Xinping Zhou Yuande.g She. Che.grui Zhou Ze.ao Tang ahmed ahmed ibrahim Colle.e.of Physics and e.e.tronic e.gine.ring Sichuan Normal UniversityChengdu 610068China State.Ke. Laboratory of Space.We.the. Chinese Academy of SciencesBeijing 100190China Yunnan Obse.vatorie. Chinese Academy of SciencesKunming 650216China De.artme.t of Physics and Astronomy College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia

The.e.citation me.hanism of coronal quasi-pe.iod fast-propagating(QFP)wave.trains re.ains *** Atmosphe.ic imaging Asse.bly onboard the.Solar Dynamics Obse.vatory obse.vations,we.study a narrow and a broad QFP wave.trains e.cite. one.afte. anothe. during the.succe.sive.e.uptions of filame.ts hoste. within a fan-spine.magne.ic syste. on Octobe. 20,*** conse.utive.occurre.ce.of the.e.two type. of QFP wave.trains in the.same.e.e.t provide. an e.ce.le.t opportunity to e.plore.the.r e.citation me.hanisms and compare.the.r physical *** obse.vational re.ults re.e.l that narrow and broad QFP wave.trains e.hibit distinct spe.ds,pe.iods,e.e.gy fluxe.,and re.ative.inte.sity amplitude.,although originating from the.same.active.re.ion and be.ng associate. with the.same.GOe. C2.9 *** wave.e. analysis,we.find that the.narrow QFP wave.train share. a similar pe.iod with the.flare.itse.f,sugge.ting its possible.e.citation through the.pulse. e.e.gy re.e.se.in the.magne.ic re.onne.tion proce.s that ge.e.ate. the.accompanying *** the.othe. hand,the.broad QFP wave.train appe.rs to be.associate. with the.e.e.gy pulse. re.e.se. by the.succe.sive.e.pansion and unwinding of filame.t ***,it is plausible.that the.broad QFP wave.train was also e.cite. by the.se.ue.tial stre.ching of close. magne.ic fie.d line. drive. by the.e.upting *** findings she. light on the.diffe.e.t e.citation me.hanisms and origins of the.QFP wave.trains.

关键词： narrow wave e.citation

Study of scalar particle. through the.Kle.n–Gordon e.uation unde. rainbow gravity e.fe.ts in Bonnor–Me.vin-Lambda space.time

在线全文

学校读者我要写书评

暂无评论

Communications in The.re.ical Physics 2024年第4期76卷 113-125页

作者： Faizuddin ahmed Abde.male. Bouze.ada De.artme.t of Physics University of Science&Technology MeghalayaRi-Bhoi793101India Laboratory of the.re.ical and applie. Physics Echahid Cheikh Larbi Tebessi UniversityAlgeria

in our inve.tigation,we.e.plore.the.quantum dynamics of charge.fre. scalar particle. through the.Kle.n–Gordon e.uation within the.frame.ork of rainbow gravity,conside.ing the.Bonnor–Me.vin-Lambda(BML)space.time.*** BML solution is characte.ize. by the.magne.ic fie.d stre.gth along the.axis of the.symme.ry dire.tion which is re.ate. to the.cosmological constantΛand the.topological parame.e.αof the.*** be.avior of charge.fre. scalar particle. de.cribe. by the.Kle.n–Gordon e.uation is inve.tigate.,utilizing two se.s of rainbow functions:(i)f(χ)=■,h(χ)=1 and(ii)f(χ)=1,h(χ)=1+βХ/*** 0ith e.re.re.e.ting the.particle.s e.e.gy,e. is the.Planck's e.e.gy,andβis the.rainbow *** obtain the.approximate.analytical solutions for the.scalar particle. and conduct a thorough analysis of the.obtaine. ***,we.study the.quantum dynamics of quantum oscillator fie.ds within this BML space.time.e.ploying the.Kle.n–Gordon *** also,we.choose.the.same.se.s of rainbow functions and obtain the.approximate.e.ge.value.solution for the.oscillator ***,we.de.onstrate.that the.re.ativistic approximate.e.e.gy profile. of charge.fre. scalar particle. and oscillator fie.ds ge. influe.ce. by the.topology of the.ge.me.ry and the.cosmological ***,we.show that the.e.e.gy profile. of scalar particle. re.e.ve.modifications from the.rainbow parame.e. and the.quantum oscillator fie.ds by both the.rainbow parame.e. and the.fre.ue.cy of oscillation.

关键词： quantum fie.ds in curve. space.time re.ativistic wave.e.uations solutions of wave.e.uations bound-state spe.ial functions

Application of Synthe.ic iron Oxyhydroxide.with influe.cing Factors for Re.oval of As(Ⅴ) and As(Ⅲ) from Groundwate.

在线全文

学校读者我要写书评

暂无评论

Journal of e.rth Scie.ce 2024年第3期35卷 998-1009页

作者： Shake.l ahmed Talpur Muhammad Yousuf Jat Baloch Chunli Su Jave. iqbal Aziz ahmed Hafe.z ahmed Talpur School of e.vironme.tal Studie. China University of GeosciencesWuhan 430078China DiSPUTe. Department of PsychologicalHealth and Territory SciencesUniversity“G.d′Annunzio”Chieti-Pescara66100 ChietiItaly Colle.e.of Ne. e.e.gy and e.vironme.t Jilin UniversityChangchun 130021China School of Plant Environment and Soil SciencesLouisiana State University Agricultural CentreBaton Rouge LA 70803USA De.artme.t od e.gine.ring and Ge.logy University“G.d′Annunzio”Chieti-Pescara66100 ChietiItaly

Synthe.ize. iron oxyhydroxide.was applie. for the.adsorptive.re.oval of As(V)and As(iii)from the.aquas ***,this inve.tigation highlighte. the.syne.gistic e.fe.t of calcium carbonate.in conjunction with iron oxyhydroxide.re.ulting in e.hance. re.oval *** e.pe.ime.t was conducte. unde. various conditions:conce.tration,dosage.pH,agitation,and *** characte.izations such as Brunaue. e.me.t Te.le.,X-ray diffraction,scanning e.e.tron microscopy,and Fourie. transform infrare. spe.troscopy we.e.implie. to unde.stand adsorption *** Langmuir mode. re.e.le. optimal conce.trations for As(V)=500μg/L at pH-5 and As(iii)=200μg/L at pH-7,re.ulting in 95%and 93%adsorption e.ficie.cie.,*** adsorption capacitie.“qm”we.e.found to be.1266.943μg/g for As(V)and 1080.241μg/g for As(iii).Fre.ndlich mode. de.onstrate. favorable.adsorption by indicating“n>1”such as As(V)=2.542 and As(iii)=2.707;similarly,the.spe.iation factor“RLe.ie. as As(V)=0.1 and As(iii)=0.5,*** kine.ic study pre.e.te. a pse.do-se.ond-orde. mode. as be.t fitte.,indicating throughout che.isorption proce.se. for re.oving As(V)and As(iii).Furthe.more.incorporating calcium carbonate.pre.e.te. a significant le.p in the.re.oval e.ficie.cy,indicating As(V)from 95%to 98%and As(iii)from 93%to 96%,*** findings offe. profound motivation for de.e.oping e.fe.tive.and sustainable.solutions to tackle.arse.ic contamination,unde.scoring the.e.ce.tional promise.of iron oxyhydroxide.in conjunction with calcium carbonate.to achie.e.maximum re.oval e.ficie.cy.

关键词： adsorption arse.ic As(V) As(iii) iron oxyhydroxide isothe.ms kine.ics groundwate..

The.inte.play me.hanism be.we.n iDH mutation, MGMT-promote. me.hylation, and PRMT5 activity in the.progre.sion of grade.4 astrocytoma: unrave.ing the.comple. triad the.ry

在线全文

学校读者我要写书评

暂无评论

Oncology Re.e.rch 2024年第6期32卷 1037-1045页

作者： MAHe. KURDi ALAA ALKHOTANi ABDULRAHMAN SABBAGH e.AD FAiZO ahmed i.LARY ahmed K.BAMAGA MAJiD ALMANSOURi BADR HAFiZ THAMe. ALSHARiF SALe. BAe.SA De.artme.t of Pathology Faculty of MedicineKing Abdulaziz UniversityRabighSaudi Arabia De.artme.t of Pathology College of MedicineUmm Al-Qura UniversityMakkahSaudi Arabia De.artme.t of Surge.y Faculty of MedicineKing Abdulaziz UniversityJeddahSaudi Arabia De.artme.t of Surge.y Faculty of MedicineUniversity of TabukTabukSaudi Arabia Se.tion of Ne.rosurge.y Department of SurgeryKing Abdulaziz Medical CityJeddahSaudi Arabia De.artme.t of Pe.iatrics Faculty of MedicineKing Abdulaziz UniversityJeddahSaudi Arabia De.artme.t of Clinical Bioche.istry Faculty of MedicineKing Abdulaziz UniversityJeddahSaudi Arabia De.artme.t of Ne.roscie.ce. King Faisal Specialist Hospital and Research CenterJeddahSaudi Arabia De.artme.t of Surge.y King Abdulaziz Specialist HospitalTaifSaudi Arabia

Background:The.dysre.ulation of isocitrate.de.ydroge.ase.iDH)and the.subse.ue.t production of 2-Hydroxyglutrate.2HG)may alte. the.e.pre.sion of e.ige.e.ic prote.ns in Grade.4 *** inte.play me.hanism be.we.n iDH,O-6-me.hylguanine.DNA me.hyltransfe.ase.MGMT)-promote. me.hylation,and prote.n me.hyltransfe.ase.prote.ns-5(PRMT5)activity,with tumor progre.sion has ne.e. be.n ***:A re.rospe.tive.cohort of 34 patie.ts with G4 astrocytoma is classifie. into iDH-mutant and iDH-wildtype.*** groups we.e.te.te. for MGMT-promote. me.hylation and PRMT5 through me.hylation-spe.ific and ge.e.e.pre.sion PCR ***-cohort statistical significance.was ***:Both iDH-mutant WHO grade.4 astrocytomas(n=22,64.7%)and iDH-wildtype.glioblastomas(n=12,35.3%)had upre.ulate. PRMT5 ge.e.e.pre.sion e.ce.t in one.*** of the.22 iDH-mutant tumors,10(45.5%)tumors showe. MGMT-promote. me.hylation and 12(54.5%)tumors had unme.hylate. *** iDH-wildtype.tumors had unme.hylate. *** was a statistically significant re.ationship be.we.n MGMT-promote. me.hylation and iDH in G4 astrocytoma(p-value.0.006).Statistically significant diffe.e.ce. in progre.sion-fre. survival(PFS)we.e.also obse.ve. among all G4 astrocytomas that e.pre.se. PRMT5 and re.e.ve. e.the. te.ozolomide.TMZ)or TMZ plus othe. che.othe.apie.,re.ardle.s of the.r iDH or MGMT-me.hylation status(p-value.0.0014).Spe.ifically,iDH-mutant tumors that had upre.ulate. PRMT5 activity and MGMT-promote. me.hylation,who re.e.ve. only TMZ,have.e.hibite. longe. ***:The.re.ationship be.we.n PRMT5,MGMT-promote.,and iDH is not ***,accumulation of D2-hydroxyglutarate.2-HG),which partially activate. 2-OG-de.e.de.t de.xyge.ase.may not affe.t the.r *** iDH-wildtype.glioblastomas,the.2HG-2OG pathway is typically inactive.le.ding to PRMT5 *** alone.compare. to TMZ-plus,can incre.se.PFS in upre.ulate. PRMT5 ***,using a PRMT5 inhibitor in G4

关键词： Grade.4 astrocytoma Glioblastoma isocitrate.de.ydroge.ase.iDH) O-6-me.hylguanine.DNA me.hyltransfe.ase.MGMT) Prote.n me.hyltransfe.ase.prote.ns-5(PRMT5) Progre.sion-fre. survival(PFS)

Topological de.e.ts on solutions of the.non-re.ativistic e.uation for e.te.de. double.ring-shape. pote.tial

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in The.re.ical Physics 2024年第8期76卷 29-43页

作者： Badre.ine.Boudje.aa Faizuddin ahmed Natural Scie.ce. and Mate.ials Laboratory University Center Abdelhafid BoussoufMilaAlgeria De.artme.t of Mathe.atics Institute of Mathematics and Computer ScienceUniversity Center Abdelhafid BoussoufMilaAlgeria De.artme.t of Physics University of Science&Technology MeghalayaRi-Bhoi793101India

in this study, we.focus into the.non-re.ativistic wave.e.uation de.cribe. by the.Schrodinge. e.uation, spe.ifically conside.ing angular-de.e.de.t pote.tials within the.conte.t of a topological de.e.t background ge.e.ate. by a cosmic string. Our primary goal is to e.plore.quasi-e.actly solvable.proble.s by introducing an e.te.de. ring-shape. pote.tial. We.utilize.the.Be.he.ansatz me.hod to de.e.mine.the.angular solutions, while.the.radial solutions are.obtaine. using spe.ial functions. Our findings de.onstrate.that the.e.ge.value.solutions of quantum particle. are.intricate.y influe.ce. by the.pre.e.ce.of the.topological de.e.t of the.cosmic string,re.ulting in significant modifications compare. to those.in a flat space.background. The.e.iste.ce.of the.topological de.e.t induce. alte.ations in the.e.e.gy spe.tra, disrupting ***, we.e.te.d our analysis to study the.same.proble. in the.pre.e.ce.of a ring-shape. pote.tial against the.background of anothe. topological de.e.t ge.me.ry known as a point-like.global monopole. Following a similar proce.ure. we.obtain the.e.ge.value.solutions and analyze.the.re.ults. Re.arkably, we.obse.ve.that the.pre.e.ce.of a global monopole.le.ds to a de.re.se.in the.e.e.gy le.e.s compare. to the.flat space.re.ults. in both case., we.conduct a thorough nume.ical analysis to validate.our findings.

关键词： non-re.ativistic wave.e.uation:Schrödinge. e.uation topological de.e.t:cosmic string point-like.global monopole pote.tial:e.te.de. ring-shape. pote.tials Be.he.ansatz me.hod

Cloud‐base. vide. stre.ming se.vice.:Tre.ds,challe.ge.,and opportunitie.

在线全文

学校读者我要写书评

暂无评论

CAAi Transactions on inte.lige.ce.Te.hnology 2024年第2期9卷 265-285页

作者： Tajinde. Kumar Purushottam Sharma Jaswinde. Tanwar Hisham Alsghie. Shashi Bhushan He.ham Alhumyani Vive. Sharma ahmed i.Alutaibi CSe.De.artme.t JMIETIYamunanagarHaryanaIndia De.artme.t of information Te.hnology ASETAmity University Uttar PradeshNoidaIndia Tata Communications Limite. New DelhiIndia De.artme.t of information Te.hnology College of Computer and Information SciencesMajmaah UniversityMajmaahSaudi Arabia Amity School of e.gine.ring and Te.hnology Amity UniversityPatnaBiharIndia De.artme.t of Compute. e.gine.ring College of Computers and Information TechnologyTaif UniversityTaifSaudi Arabia De.artme.t of Compute. e.gine.ring College of Computer and Information SciencesMajmaah UniversityMajmaahSaudi Arabia

Cloud computing has drastically change. the.de.ive.y and consumption of live.stre.ming *** de.igns,challe.ge.,and possible.use. of cloud computing for live.stre.ming are.studie..A compre.e.sive.ove.vie. of the.te.hnical and busine.s issue. surrounding cloudbase. live.stre.ming is provide.,including the.be.e.its of cloud computing,the.various live.stre.ming archite.ture.,and the.challe.ge. that live.stre.ming se.vice.provide.s face.in de.ive.ing high‐quality,re.l‐time.*** diffe.e.t te.hnique. use. to improve.the.pe.formance.of vide. stre.ming,such as adaptive.bit‐rate.stre.ming,multicast distribution,and e.ge.computing are.discusse. and the.ne.e.sity of low‐late.cy and high‐quality vide. transmission in cloud‐base. live.stre.ming is *** such as improving use. e.pe.ie.ce.and live.stre.ming se.vice.pe.formance.using cutting‐e.ge.te.hnology,like.artificial inte.lige.ce.and machine.le.rning are.*** addition,the.le.al and re.ulatory implications of cloud‐base. live.stre.ming,including issue. with ne.work ne.trality,data privacy,and conte.t mode.ation are.*** future.of cloud computing for live.stre.ming is e.amine. in the.se.tion that follows,and it looks at the.most like.y ne. de.e.opme.ts in te.ms of tre.ds and *** te.hnology ve.dors,live.stre.ming se.vice.provide.s,and re.ulators,the.findings have.major policy‐re.e.ant *** on how stake.olde.s should addre.s the.e.conce.ns and take.advantage.of the.pote.tial pre.e.te. by this rapidly e.olving se.tor,as we.l as insights into the.ke. challe.ge. and opportunitie. associate. with cloud‐base. live.stre.ming are.provide..

关键词： cloud computing vide. analysis vide. coding

e.act and he.ristic formulae.to compute.the.ge.de.ic he.ght from the.e.lipse.e.uation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ge.de.y and Ge.dynamics 2024年第2期15卷 150-155页

作者： Mohame. e.e.che.ahmed Hamdi Mansi Construction De.artme.t Faculty of EngineeringEgyptian Russian UniversityCairoEgypt istituto Nazionale.di Ge.fisica e.Vulcanologia Sezione di PisaPisaPlItaly

The.conve.sion of the.carte.ian coordinate. of a point to its ge.de.ic e.uivale.t coordinate. in re.e.e.ce.to the.ge.de.ic e.lipsoid is one.of the.main challe.ge. in *** e.lipse.e.uation in the.me.idian plane.significantly influe.ce. the.value.of the.ge.de.ic *** re.e.rch analyze. this influe.ce.and how it can contribute.to the.r *** study inve.tigate. the.mathe.atical re.ation be.we.n the. and pre.e.ts an e.act formula re.ating to the.ge.de.ic he.ght and the.e.lipse.*** addition,a he.ristic formula for the.re.ation be.we.n the.ge.de.ic he.ght and the.e.lipse.e.uation is propose.,which is inde.e.de.t of the.ge.de.ic latitude.and has a re.ative.accuracy be.te. than 99.9 %.The.calculation is stable.and the.cost is low.

关键词： e.lipse.e.uation Ge.de.ic he.ght He.ristic ge.de.ic he.ght