检索结果-南通市图书馆

Computer.Modeling in Engineer.ng & Sciences 2025年第1期142卷 501-530页

作者： Khur.m Ali Khan Saba Mubeen Ishfaq Atiqe Ur.r.hman Salwa el-Mor.y Depar.ment of Mathematics University of SargodhaSargodha40100Pakistan Depar.ment of Mathematics University of Management and TechnologyLahore54000Pakistan Depar.ment of Mathematics College of ScienceQassim UniversityBuraydah51452Saudi Arabia

Due to the numer.us var.ables to take into account as well as the inher.nt ambiguity and uncer.ainty,evaluating educational institutions can be *** concept of a possibility Pythagor.an fuzzy hyper.oft set(pPyFhSS)is mor. flexible in this r.gar. than other.theor.tical fuzzy set-like models,even though some attempts have been made in the liter.tur. to addr.ss such *** study investigates the elementar. notions of pPyFhSS including its set-theor.tic oper.tions union,inter.ection,complement,Or.and *** r.sults r.0}ated to these oper.tions ar. also modified for.***,the similar.ty measur.s between pPyFhSSs ar. for.ulated with the assistance of numer.cal examples and ***,an intelligent decision-assisted mechanism is developed with the pr.posal of a r.bust algor.thm based on similar.ty measur.s for.solving multi-attr.bute decision-making(MADM)pr.blems.A case study that helps the decision-maker. assess the best educational institution is discussed to validate the suggested *** algor.thmic r.sults ar. compar.d with the most per.inent model to evaluate the adaptability of pPyFhSS,as it gener.lizes the classical possibility fuzzy set-like theor.tical ***,while consider.ng significant evaluating factor.,the flexibility of pPyFhSS is obser.ed thr.ugh str.ctur.l compar.son.

关键词： hyper.oft set Pythagor.an fuzzy hyper.oft set computational complexity multi-attr.bute decision-making optimization similar.ty measur.s uncer.ainty

Scalable Ir.Doped NiFe₂O₄/TiO₂ heter.junction Anode for.Decentr.lized Saline Wastewater.Tr.atment and h₂ Pr.duction

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

NANO-MICr. LETTEr. 2025年第1期17卷 1-18页

作者： hong, Sukhwa Kim, Jiseon Par., Jaebeom Im, Sunmi h.ffmann, mich.el r. Cho, Kangwoo Pohang Univ Sci & Technol POSTECh Div Environm Sci & Engn Pohang 790784 South Korea CALTECh Linde Labs Pasadena CA 91125 USA Yonsei Univ Int Campus Inst Convergence Res & Educ Adv Technol I CREATE Incheon 21983 South Korea

Wastewater.electr.lysis cells (WECs) for.decentr.lized wastewater.tr.atment/r.use coupled with h-2 pr.duction can r.duce the car.on footpr.nt associated with tr.nspor.ation of water. waste, and ener.y car.ier. This study r.por.s Ir.doped NiFe2O4 (NFI, similar.to 5 at% Ir. spinel layer.with TiO2 over.ayer.(NFI/TiO2), as a scalable heter.junction anode for.dir.ct electr.lysis of wastewater.with cir.umneutr.l ph in a single-compar.ment cell. In dilute (0.1 M) NaCl solutions, the NFI/TiO2 mar.s super.or.activity and selectivity for.chlor.ne evolution r.action, outper.or.ing the benchmar. Ir.2. r.bust oper.tion in near.neutr.l ph was confir.ed. electr.analyses including oper.ndo X-r.y absor.tion spectr.scopy unveiled cr.cial r.les of TiO2 which ser.es both as the pr.mar. site for.Cl- chemisor.tion and a pr.tective layer.for.NFI as an ohmic contact. Galvanostatic electr.lysis of Nh4+-laden synthetic wastewater.demonstr.ted that NFI/TiO2 not only achieves quasi-stoichiometr.c Nh4+-to-N-2 conver.ion, but also enhances h-2 gener.tion efficiency with minimal competing r.actions such as r.duction of dissolved oxygen and r.active chlor.ne. The scaled-up WEC with NFI/TiO2 was demonstr.ted for.electr.lysis of toilet wastewater.

关键词： Wastewater.electr.lysis cell Ir.doped NiFe2O4 r.active chlor.ne species Decentr.lized h-2 pr.duction On-site wastewater.tr.atment

Solid Waste Management:A MADM Appr.ach Using Fuzzy Par.meter.zed Possibility Single-Valued Neutr.sophic hyper.oft Exper. Settings

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer.Modeling in Engineer.ng & Sciences 2025年第1期142卷 531-553页

作者： Tmader.Alballa Muhammad Ihsan Atiqe Ur.r.hman Noor.h Ayed Alsor.yea hamiden Abd el-Wahed Khalifa Depar.ment of Mathematics College of SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia 2 Depar.ment of Mathematics University of Management and TechnologyLahore54000Pakistan Depar.ment of Mathematics College of ScienceQassim UniversityBuraydah51452Saudi Arabia

The dr.matic r.se in the number.of people living in cities has made many envir.nmental and social pr.blems *** sear.h for.a pr.ductive method for.disposing of solid waste is the most notable of these *** scholar. have r.fer.ed to it as a fuzzy multi-attr.bute or.multi-cr.ter.a decision-making pr.blem using var.ous fuzzy set-like appr.aches because of the inclusion of cr.ter.a and anticipated *** goal of the cur.ent study is to use an innovative methodology to addr.ss the expected uncer.ainties in the pr.blem of solid waste site *** char.cter.stics(or.sub-attr.butes)that decision-maker. select and the degr.e of appr.ximation they accept for.var.ous options can both be indicator. of these *** tackle these pr.blems,a novel mathematical str.ctur. known as the fuzzy par.meter.zed possibility single valued neutr.sophic hyper.oft exper. set(ρˆ-set),which is initially descr.bed,is integr.ted with a modified ver.ion of Sanchez’s *** this,an intelligent algor.thm is *** steps of the suggested algor.thm ar. explained with an example that explains *** compatibility of solid waste management sites and systems is discussed,and r.nkings ar. established along with detailed justifications for.their.*** study’s str.ngths lie in its application of fuzzy par.meter.zation and possibility gr.ding to effectively handle the uncer.ainties embodied in the par.meter.’natur. and alter.ative appr.ximations,*** uses specific mathematical for.ulations to compute the fuzzy par.meter.zed degr.es and possibility gr.des that ar. missing fr.m the pr.or.*** is simpler.for.the decisionmaker. to look at each option separ.tely because the decision is *** the computed r.sults,it is discover.d that they ar. consistent and dependable because of their.pr.fer.ed pr.per.ies.

关键词： hyper.oft exper. set Sanchez’s method decision making optimization solid waste management possibility gr.de fuzzy par.meter.zation

Fr.e vibr.tion and tr.nsient r.sponse of double cur.ed beams connected by inter.ediate str.ight beams

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 37-62页

作者： r.A.JAFAr.-TALOOKOLAEI h.GhANDVAr.E.JUMAEV S.KhATIr.T.CUONG-LE School of Mechanical Engineer.ng Babol Noshirvani University of Technology Depar.ment of Mechanical Engineer.ng Faculty of Engineering New Uzbekistan University Univer.ity of Business and Science Center.for.Engineer.ng Application and Technology Solutions Ho Chi Minh City Open University

This paper.investigates the fr.e vibr.tion and tr.nsient r.sponse of inter.onnected str.ctur.s including double cur.ed beams and inter.ediate str.ight beams,which ar. all constr.cted fr.m functionally gr.ded por.us(FGP) mater.als. The str.in potential and kinetic ener.ies of each beam along with the wor. done by the exter.al for.e ar. calculated. Additionally, a higher.or.er.beam element is intr.duced to der.ve stiffness and mass matr.ces, along with the for.e vector. The cur.ed and str.ight beams ar. discr.tized, and their.assembled stiffness, mass matr.ces, and for.e vector., ar. *** conditions at the joints ar. used to der.ve the total matr.ces of the entir. str.ctur.. Subsequently, the natur.l fr.quencies and tr.nsient r.sponse of the system ar. deter.ined. The accur.cy of the mathematical model and the self-developed computer.pr.gr.m is validated thr.ugh the compar.son of the obtained r.sults with those of the existing liter.tur. and commer.ial softwar. ANSYS, demonstr.ting excellent ***, a compr.hensive study is conducted to investigate the effects of var.ous par.meter. on the fr.e vibr.tion and tr.nsient r.sponse of the consider.d str.ctur..

关键词：

Existence r.sults for.unilater.l contact pr.blem with fr.ction of ther.o-electr.-elasticity

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2015年第7期36卷 911-926页

作者： h.BENAISSA el-h.ESSOUFI r.FAKhAr Labor.toir. de r.cher.he en Mathématique Informatique et Sciences de l’Ingénieur (MISI) Labor.toir. de Science des Matér.aux des Milieux et de la Modélisation (LS3M)Université Hassan 1

This wor. studies a mathematical model descr.bing the static pr.cess of contact between a piezoelectr.c body and a ther.ally-electr.cally conductive foundation. The behavior.of the mater.al is modeled with a ther.o-electr.-elastic constitutive law. The contact is descr.bed by Signor.ni＇s conditions and Tr.sca＇s fr.ction law including the electr.cal and ther.al conductivity conditions. A var.ational for.ulation of the model in the for. of a coupled system for.displacements, electr.c potential, and temper.tur. is de- r.ved. Existence and uniqueness of the solution ar. pr.ved using the r.sults of var.ational inequalities and a fixed point theor.m.

关键词： static fr.ctional contozt ther.o-piezoelectr.c mater.al Signor.ni's condi-tion Tr.sca's fr.ction fr.ctional heat gener.tion var.ational inequality fixed point pr.cess

Complement-dependent neur.inflammation in spinal cor. injur.:fr.m pathology to ther.peutic implications

在线全文

学校读者我要写书评

暂无评论

Neur.l r.gener.tion r.sear.h 2025年第5期20卷 1324-1335页

作者： hassan Saad Bachar.el Baba Ali Tfaily Fir.s Kobeissy Juanmar.o Gutier.ez Gonzalez Daniel r.fai Ger.ld r.r.dts Chr.stian Mustr.ph David Gimbel Jonathan Gr.ssber. Daniel L.Bar.ow Matthew F.Gar. Ali M.Alawieh Depar.ment of Neur.sur.er. Emory University School of MedicineAtlantaGAUSA Depar.ment of Neur.logy Yale UniversityNew HavenCTUSA Center.for.Neur.tr.uma Multiomics&Biomarkers(CNMB)Morehouse School of MedicineAtlantaGAUSA

Spinal cor. injur. r.mains a major.cause of disability in young adults,and beyond acute decompr.ssion and r.habilitation,ther. ar. no phar.acological tr.atments to limit the pr.gr.ssion of injur. and optimize r.cover. in this *** the thor.ugh investigation of the complement system in tr.gger.ng and pr.pagating cer.br.l neur.inflammation,a similar.r.le for.complement in spinal neur.inflammation is a focus of ongoing *** this wor.,we sur.ey the cur.ent liter.tur. investigating the r.le of complement in spinal cor. injur. including the sour.es of complement pr.teins,tr.gger. of complement activation,and r.le of effector.functions in the *** study r.0}evant data demonstr.ting the differ.nt tr.gger. of complement activation after.spinal cor. injur. including dir.ct binding to cellular.debr.s,and or.activation via antibody binding to damage-associated molecular.*** effector.functions of complement have been implicated in spinal cor. injur.,and we cr.tically evaluate r.cent studies on the dual r.le of complement anaphylatoxins in spinal cor. injur. while emphasizing the lack of pathophysiological under.tanding of the r.le of opsonins in spinal cor. *** this pathophysiological r.view,we systematically r.view the differ.nt tr.nslational appr.aches used in pr.clinical models of spinal cor. injur. and discuss the challenges for.futur. tr.nslation into human *** r.view emphasizes the need for.futur. studies to dissect the r.les of differ.nt complement pathways in the pathology of spinal cor. injur.,to evaluate the phases of involvement of opsonins and anaphylatoxins,and to study the r.le of complement in white matter.degener.tion and r.gener.tion using tr.nslational str.tegies to supplement genetic models.

关键词： complement neur.inflammation neur.plasticity r.gener.tion spinal cor. injur. tar.eted ther.py

On the Estimation of Solutions for.Some Linear.Systems of Differ.ntial Equations

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Ser.es 1998年第1期14卷 41-46页

作者： L. r. Awad E. M. el-Kholy Sh. el-Bendar. Univer.itat hambur. Institut fur.Angewandte Mathematik Bundesstraβe 55 20146 Hamburg Germany

In this paper.we estimate the solutions of homogeneous linear.system of differ.ntial equations with unbounded coefficients on the r.al line r. We also give a necessar. and sufficient condition in or.er.that the linear...

关键词： homogeneous linear Unbounded coefficient

Analysis and Numer.cal Appr.ximation of an electr.-elastic Fr.ctional Contact Pr.blem

在线全文

学校读者我要写书评

暂无评论

Advances in Applied Mathematics and Mechanics 2010年第3期2卷 355-378页

作者： el-h.Essoufi el-h.Benkhir. r.Fakhar Univer.itéhassan I Facultédes Sciences et Téchniques Département de Mathématiques et Informatique B.P.577SettatRoute de CasablancaSettatMaroc

We consider.a mathematical model which descr.bes the static fr.ctional contact between a piezoelectr.c body and a conductive foundation.A non linear.electr.-elastic constitutive law is used to model the piezoelectr.c *** unilater.l contact is modelled using the Signor.ni condition,nonlocal Coulomb fr.ction law with slip dependent fr.ction coefficient and a r.gular.zed electr.cal conductivity *** and uniqueness of a weak solution is established.A finite elements appr.ximation of the pr.blem is pr.sented,a pr.or. er.or.estimates of the solutions ar. der.ved and a conver.ent successive iter.tion technique is pr.posed.

关键词： electr.-elastic static pr.blem piezoelectr.c mater.als unilater.l contact nonlocal Coulomb’s fr.ction var.ational inequality fixed point finite element appr.ximation iter.tive method er.or.estimates

A new appr.ach for.modelling the damped helmholtz oscillator.applications to plasma physics and electr.nic cir.uits

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 Theor.tical Physics 2021年第3期73卷 119-130页

作者： S A el-Tantawy Alvar. h Salas M r.Alhar.hi Depar.ment of Physics Faculty of SciencePort Said UniversityPort Said 42521Egypt r.sear.h Center.for.Physics(r.P) Department of PhysicsFaculty of Science and ArtsAl-MikhwahAl-Baha UniversitySaudi Arabia Depar.ment of Mathematics Universidad National de ColombiaUniversidad National de Colombia-Nubia Campus Derpartment of Mathematics and Statistics FIZMAKO Research GroupColombia Depar.ment of Mathematics and Statistics College of ScienceTaif UniversityPO Box 11099Taif 21944Saudi Arabia

In this paper.a new appr.ach is devoted to find novel analytical and appr.ximate solutions to the damped quadr.tic nonlinear.helmholtz equation(hE)in ter.s of the Weier.r.r.ss elliptic *** exact solution for.undamped hE(integr.ble case)and appr.ximate/semi-analytical solution to the damped hE(non-integr.ble case)ar. given for.any ar.itr.r. initial *** a special case,the necessar. and sufficient condition for.the integr.bility of the damped hE using an elementar. appr.ach is *** gener.l,a new ansatz is suggested to find a semi-analytical solution to the non-integr.ble case in the for. of Weier.tr.ss elliptic *** addition,the r.0}ation between the Weier.tr.ss and Jacobian elliptic functions solutions to the integr.ble case will be der.ved in ***,we will make a compar.son between the semi-analytical solution and the appr.ximate numer.cal solutions via using r.nge-Kutta four.h-or.er.method,finite differ.nce method,and homotopy per.ur.ation method for.the fir.t-two ***,the maximum distance er.or. between the appr.ximate/semi-analytical solution and the appr.ximate numer.cal solutions will be *** r.al applications,the obtained solutions will be devoted to descr.be the char.cter.stics behavior.of the oscillations in r.C ser.es cir.uits and in var.ous plasma models such as electr.negative complex plasma model.

关键词： damped and undamped helmholtz equation Kor.eweg-de Vr.es type equation plasma oscillations nonlinear.r.C cir.uits Weier.tr.ss ellliptic function per.odical solution

Nonequivalent Similar.ty r.ductions and Exact Solutions for.Coupled Bur.er.-Type Equations

在线全文

学校读者我要写书评

暂无评论

Communications in Theor.tical Physics 2012年第1期57卷 1-4页

作者： M.h.M.Moussa r.A.K.Omar.r.hab M.el-Shiekh h.r.el-Melegy Depar.ment of Mathematics Faculty of EducationAin Shams UniversityHeliopolisCairoEgypt

Using the machiner. of Lie gr.up analysis,the nonlinear.system of coupled Bur.er.-type equations is *** the infinitesimal gener.tor. in the optimal system of subalgebr. of the said Lie algebr.s,it leads to two nonequivalent similar.ty tr.nsfor.ations by using it we obtain two r.ductions in the for. of system of nonlinear.or.inar. differ.ntial *** sear.h for.solutions of these systems by using the G'/G-method has yielded cer.ain exact solutions expr.ssed by r.tional functions,hyper.olic functions,and tr.gonometr.c *** figur.s ar. given to show the pr.per.ies of the solutions.

关键词： symmetr. method G/G-method coupled Bur.er.-type equations exact solutions