检索结果-南通市图书馆

Wear Di.played by the Scratch of.Epoxy Composi.es f.lled by Metalli. Parti.les under the i.f.uence of.Magneti. f.eld

引用

Materi.ls Sci.nces and Appli.ati.ns 2016年第2期7卷 119-127页

作者： f. i. el-zahraa G. T. Abdel-Jaber M. i. Khashaba W. Y. Ali f.culty of.Engi.eeri.g Qena South Valley University Qena Egypt f.culty of.Engi.eeri.g Minia University El-Minia Egypt f.culty of.Engi.eeri.g Taif University Al-Taif Saudi Arabia

The tri.ologi.al perf.rmance of.the sli.i.g beari.gs whi.h are probably made of.polymers, whi.h i. subjected to magneti. f.eld, i. of.great i.tense. The wear of.epoxy composi.es f.lled by metalli. parti.les such as i.on, copper and alumi.um scratched by steel i.denter i. i.vesti.ated. The wear scar wi.th of.the scratch was measured by an opti.al mi.roscope. i. was f.und that wear di.played by the scratch of.epoxy f.lled by the metalli. f.lli.g materi.ls such as i.on, copper and alumi.um i.creased wi.h i.creasi.g appli.d load. As the content of.the metalli. f.lli.g materi.ls i.creased, wear sli.htly i.creased due to the reducti.n i. cohesi.e stress i.si.e the matri. as well as the epoxy transf.r i.to the i.denter surf.ce mi.ht be responsi.le f.r that behavi.r. f.r epoxy f.lled by i.on, when the magneti. f.eld was appli.d to the contact area wear si.ni.0}cantly decreased. i.creasi.g the i.tensi.y of.the magneti. f.eld showed sli.ht wear i.crease. Wear di.played by the scratch of.epoxy f.lled by copper showed hi.her values than that observed f.r copper f.lled epoxy. Presence of.the magneti. f.eld mi.ht generate electri. current at the contact area leadi.g to an i.crease i. the i.tensi.y of.the electri. stati. charge. Moreover, wear of.epoxy f.lled by alumi.um showed lower values than that observed f.r epoxy composi.es f.lled by copper and hi.her than that di.played by i.on f.lled epoxy composi.es. Under the ef.ect of.magneti. f.eld, wear si.ni.0}cantly i.creased. Thi. behavi.r could explai.ed on the basi. that the presence of.magneti. f.eld accompani.d by the movement of.the i.denter i. the epoxy composi.es generated electri. current passi.g through the steel i.denter whi.h caused sof.eni.g of.the epoxy composi.es. i. that condi.i.n removal of.epoxy f.om the wear track was easi.r and epoxy transf.r i.to the steel i.denter was accelerated.

关键词： Wear Epoxy Composi.es i.on Copper Alumi.um Magneti. f.eld Scratch

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

f.i.ti.n Coef.i.i.nt Di.played by the Scratch of.Epoxy Composi.es f.lled by Metalli. Parti.les under the i.f.uence of.Magneti. f.eld

引用

Materi.ls Sci.nces and Appli.ati.ns 2015年第2期6卷 200-208页

作者： f. i. el-zahraa G. T. Abdel-Jaber M. i. Khashaba W. Y. Ali f.culty of.Engi.eeri.g South Valley University Qena Egypt f.culty of.Engi.eeri.g Minia University Minya Egypt f.culty of.Engi.eeri.g Taif University Taif KSA

The wi.e use of.epoxy composi.es as beari.g materi.ls i. electroni. appli.nces necessi.ates studyi.g thei. f.i.ti.nal behavi.ur under the i.f.uence of.magneti. f.eld. Experi.ents were carri.d out to i.vesti.ate the ef.ect of.magneti. f.eld on the f.i.ti.n coef.i.i.nt di.played by the scratch of.epoxy composi.es f.lled by i.on, copper and alumi.i.m parti.les at di.0}erent concentrati.ns. i. was observed that, f.r epoxy f.lled by the metalli. f.llers (i.on, copper and alumi.i.m), under the ef.ect of.the magneti. f.eld, f.i.ti.n coef.i.i.nt showed relati.e decrease then si.ni.0}cantly i.creased wi.h f.rther i.crease of.the i.tensi.y of.the magneti. f.eld. Besi.es, f.i.ti.n coef.i.i.nt i.creased wi.h i.creasi.g the content of.the metalli. f.llers due to the decrease of.the strength of.the epoxy matri.. The values of.f.i.ti.n coef.i.i.nt di.played by epoxy f.lled by copper were lower than those observed f.r epoxy f.lled by i.on. f.lli.g epoxy by alumi.i.m di.played lower f.i.ti.n coef.i.i.nt than that observed f.r epoxy composi.es f.lled by i.on and copper. Thi. can be attri.uted to the chargi.g of.alumi.i.m by posi.i.e charge when sli. agai.st steel. The resultant charge on the sli.i.g surf.ces was lower than that generated when epoxy was f.lled by i.on and copper. i. that condi.i.n, the adhesi.n of.epoxy composi.es would be relati.ely weaker leadi.g to the decrease of.f.i.ti.n coef.i.i.nt.

关键词： f.i.ti.n Coef.i.i.nt Epoxy Composi.es i.on Copper Alumi.i.m Magneti. f.eld Scratch

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evaluati.n of.f.MA-440 f.r i.cludi.g soi.-structure i.teracti.n

引用

Earthquake Engi.eeri.g and Engi.eeri.g Vi.rati.n 2010年第3期9卷 397-408页

作者： Khoshnoudi.n f. Behmanesh i. f.culty of.Ci.i. Engi.eeri.g Amirkabir University of Technology f.culty of.Ci.i. and Envi.onmental Engi.eeri.g Tufts University

Replaci.g the enti.e soi.-structure system wi.h a f.xed base osci.lator to consi.er the ef.ect of.soi.-structure i.teracti.n （SSi. i. a common analysi. method i. sei.mi. desi.n. Thi. techni.ue has been i.cluded i. desi.n procedures such as NEHRP, ASCE, etc. by def.ni.g an equi.alent f.ndamental peri.d and dampi.g rati. that can modi.0} the response of.the structure. However, recent studi.s i.di.ate that the ef.ects of.SSi.should be reconsi.ered when a structure undergoes a nonli.ear di.placement demand. i. recent documents on Nonli.ear Stati. Procedures （NSPs）, f.MA-440 （2005）, a modi.0}ed dampi.g rati. of.the replacement osci.lator was proposed by i.troduci.g the ducti.i.y of.the soi.-structure system obtai.ed f.om pushover analysi.. i. thi. paper, the dampi.g def.ned i. f.MA-440 to i.clude the soi.-structure i.teracti.n ef.ect i. evaluated, and the accuracy of.the Coef.i.i.nt Method gi.en i. f.MA-440 and the Equi.alent Li.eari.ati.n Method i. studi.d. Although the i.provements f.r Nonli.ear Stati. Procedures （NSPs） i. f.MA-440 are achi.ved f.r a f.xed base SDOf.structure, the soi. ef.ects are not perf.ctly obtai.ed. f.rthermore, the dampi.g def.ni.i.n of.a soi.-structure system i. extended to structures to consi.er bi.i.ear behavi.r.

关键词： soi.-structure i.teracti.n f.undati.n dampi.g i.elasti. behavi.r equi.alent li.eari.ati.n

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Synergi.ti. Multi.Attri.ute Deci.i.n-Maki.g Method f.r Educati.nal i.sti.uti.ns Evaluati.n Usi.g Si.i.ari.y Measures of.Possi.i.i.y Pythagorean f.zzy Hypersof. Sets

引用

Computer Modeli.g i. Engi.eeri.g & Sci.nces 2025年第1期142卷 501-530页

作者： Khuram Ali.Khan Saba Mubeen i.hf.q Ati.e Ur Rahman Salwa el-Morsy Department of.Mathemati.s University of SargodhaSargodha40100Pakistan Department of.Mathemati.s University of Management and TechnologyLahore54000Pakistan Department of.Mathemati.s College of ScienceQassim UniversityBuraydah51452Saudi Arabia

Due to the numerous vari.bles to take i.to account as well as the i.herent ambi.ui.y and uncertai.ty,evaluati.g educati.nal i.sti.uti.ns can be *** concept of.a possi.i.i.y Pythagorean f.zzy hypersof. set(pPyf.SS)i. more f.exi.le i. thi. regard than other theoreti.al f.zzy set-li.e models,even though some attempts have been made i. the li.erature to address such *** study i.vesti.ates the elementary noti.ns of.pPyf.SS i.cludi.g i.s set-theoreti. operati.ns uni.n,i.tersecti.n,complement,OR-and *** results related to these operati.ns are also modi.0}ed f.r ***,the si.i.ari.y measures between pPyf.SSs are f.rmulated wi.h the assi.tance of.numeri.al examples and ***,an i.telli.ent deci.i.n-assi.ted mechani.m i. developed wi.h the proposal of.a robust algori.hm based on si.i.ari.y measures f.r solvi.g multi.attri.ute deci.i.n-maki.g(MADM)problems.A case study that helps the deci.i.n-makers assess the best educati.nal i.sti.uti.n i. di.cussed to vali.ate the suggested *** algori.hmi. results are compared wi.h the most perti.ent model to evaluate the adaptabi.i.y of.pPyf.SS,as i. generali.es the classi.al possi.i.i.y f.zzy set-li.e theoreti.al ***,whi.e consi.eri.g si.ni.0}cant evaluati.g f.ctors,the f.exi.i.i.y of.pPyf.SS i. observed through structural compari.on.

关键词： Hypersof. set Pythagorean f.zzy hypersof. set computati.nal complexi.y multi.attri.ute deci.i.n-maki.g opti.i.ati.n si.i.ari.y measures uncertai.ty

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Complement-dependent neuroi.f.ammati.n i. spi.al cord i.jury:f.om pathology to therapeuti. i.pli.ati.ns

引用

Neural Regenerati.n Research 2025年第5期20卷 1324-1335页

作者： Hassan Saad Bachar el Baba Ali.Tf.i.y f.ras Kobei.sy Juanmarco Guti.rrez Gonzalez Dani.l Ref.i.Gerald R.Rodts Chri.ti.n Mustroph Davi. Gi.bel Jonathan Grossberg Dani.l L.Barrow Matthew f.Gary Ali.M.Alawi.h Department of.Neurosurgery Emory University School of MedicineAtlantaGAUSA Department of.Neurology Yale UniversityNew HavenCTUSA Center f.r Neurotrauma Multiomics&Biomarkers(CNMB)Morehouse School of MedicineAtlantaGAUSA

Spi.al cord i.jury remai.s a major cause of.di.abi.i.y i. young adults,and beyond acute decompressi.n and rehabi.i.ati.n,there are no pharmacologi.al treatments to li.i. the progressi.n of.i.jury and opti.i.e recovery i. thi. *** the thorough i.vesti.ati.n of.the complement system i. tri.geri.g and propagati.g cerebral neuroi.f.ammati.n,a si.i.ar role f.r complement i. spi.al neuroi.f.ammati.n i. a f.cus of.ongoi.g *** thi. work,we survey the current li.erature i.vesti.ati.g the role of.complement i. spi.al cord i.jury i.cludi.g the sources of.complement protei.s,tri.gers of.complement acti.ati.n,and role of.ef.ector f.ncti.ns i. the *** study relevant data demonstrati.g the di.0}erent tri.gers of.complement acti.ati.n af.er spi.al cord i.jury i.cludi.g di.ect bi.di.g to cellular debri.,and or acti.ati.n vi. anti.ody bi.di.g to damage-associ.ted molecular *** ef.ector f.ncti.ns of.complement have been i.pli.ated i. spi.al cord i.jury,and we cri.i.ally evaluate recent studi.s on the dual role of.complement anaphylatoxi.s i. spi.al cord i.jury whi.e emphasi.i.g the lack of.pathophysi.logi.al understandi.g of.the role of.opsoni.s i. spi.al cord *** thi. pathophysi.logi.al revi.w,we systemati.ally revi.w the di.0}erent translati.nal approaches used i. precli.i.al models of.spi.al cord i.jury and di.cuss the challenges f.r f.ture translati.n i.to human *** revi.w emphasi.es the need f.r f.ture studi.s to di.sect the roles of.di.0}erent complement pathways i. the pathology of.spi.al cord i.jury,to evaluate the phases of.i.volvement of.opsoni.s and anaphylatoxi.s,and to study the role of.complement i. whi.e matter degenerati.n and regenerati.n usi.g translati.nal strategi.s to supplement geneti. models.

关键词： complement neuroi.f.ammati.n neuroplasti.i.y regenerati.n spi.al cord i.jury targeted therapy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Soli. Waste Management:A MADM Approach Usi.g f.zzy Parameteri.ed Possi.i.i.y Si.gle-Valued Neutrosophi. Hypersof. Expert Setti.gs

引用

Computer Modeli.g i. Engi.eeri.g & Sci.nces 2025年第1期142卷 531-553页

作者： Tmader Alballa Muhammad i.san Ati.e Ur Rahman Noorah Ayed Alsorayea Hami.en Abd el-Wahed Khali.0} Department of.Mathemati.s College of SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia 2 Department of.Mathemati.s University of Management and TechnologyLahore54000Pakistan Department of.Mathemati.s College of ScienceQassim UniversityBuraydah51452Saudi Arabia

The dramati. ri.e i. the number of.people li.i.g i. ci.i.s has made many envi.onmental and soci.l problems *** search f.r a producti.e method f.r di.posi.g of.soli. waste i. the most notable of.these *** scholars have ref.rred to i. as a f.zzy multi.attri.ute or multi.cri.eri. deci.i.n-maki.g problem usi.g vari.us f.zzy set-li.e approaches because of.the i.clusi.n of.cri.eri. and anti.i.ated *** goal of.the current study i. to use an i.novati.e methodology to address the expected uncertai.ti.s i. the problem of.soli. waste si.e *** characteri.ti.s(or sub-attri.utes)that deci.i.n-makers select and the degree of.approxi.ati.n they accept f.r vari.us opti.ns can both be i.di.ators of.these *** tackle these problems,a novel mathemati.al structure known as the f.zzy parameteri.ed possi.i.i.y si.gle valued neutrosophi. hypersof. expert set(ρˆ-set),whi.h i. i.i.i.lly descri.ed,i. i.tegrated wi.h a modi.0}ed versi.n of.Sanchez’s *** thi.,an i.telli.ent algori.hm i. *** steps of.the suggested algori.hm are explai.ed wi.h an example that explai.s *** compati.i.i.y of.soli. waste management si.es and systems i. di.cussed,and ranki.gs are establi.hed along wi.h detai.ed justi.0}cati.ns f.r thei. *** study’s strengths li. i. i.s appli.ati.n of.f.zzy parameteri.ati.n and possi.i.i.y gradi.g to ef.ecti.ely handle the uncertai.ti.s embodi.d i. the parameters’nature and alternati.e approxi.ati.ns,*** uses speci.0}c mathemati.al f.rmulati.ns to compute the f.zzy parameteri.ed degrees and possi.i.i.y grades that are mi.si.g f.om the pri.r *** i. si.pler f.r the deci.i.nmakers to look at each opti.n separately because the deci.i.n i. *** the computed results,i. i. di.covered that they are consi.tent and dependable because of.thei. pref.rred properti.s.

关键词： Hypersof. expert set Sanchez’s method deci.i.n maki.g opti.i.ati.n soli. waste management possi.i.i.y grade f.zzy parameteri.ati.n

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Brai.s wi.h Tri.i.l Si.ple Centrali.er

引用

Algebra Colloqui.m 2015年第4期22卷 561-566页

作者： U. Ali.f. Azam i. Javai. A. Hai.er Center f.r Advanced Studi.s i. Pure and Appli.d Mathemati.s Bahauddi. Zakari.a Uni.ersi.y Multan Pakistan Department of.Mathemati.s Jazan University Jazan Saudi Arabia

i. thi. paper, we prove that the n-si.ple brai. di.i.i.le by the generators xi.f.r all 2 ≤ i.≤n - 2 has tri.i.l si.ple centrali.er. Consequently, the commuti.g graph def.ned on the set of.si.ple brai.s i. di.connect... 详细信息

关键词： si.ple brai. si.ple centrali.er commuti.g graph

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Si.pli.0}ed approach f.r desi.n of.raf. f.undati.ns agai.st f.ult *** i.f.ee-f.eld

引用

Earthquake Engi.eeri.g and Engi.eeri.g Vi.rati.n 2008年第2期7卷 147-163页

作者： i. Anastasopoulos N. Gerolymos G. Gazetas M. f. Bransb School of.Ci.i. Engi.eeri.g National Technical University of AthensGreece Civil LecturerEngineeringUniversity of DundeeScotlandUK School of.Ci.i. Engi.eeri.g National Technical University of AthensGreece Ci.i. Engi.eeri.g University of DundeeScotlandUK

Over the past f.w decades, earthquake engi.eeri.g research mai.ly f.cused on the ef.ects of.strong sei.mi. shaki.g. Af.er the 1999 earthquakes i. Turkey and Tai.an, and thanks to numerous cases where f.ult rupture caused substanti.l damage to structures, the i.portance of.f.ulti.g-i.duced def.rmati.n has re-emerged. Thi. paper, along wi.h i.s compani.n （Part Ⅱ）, exploi.s parametri. results of.f.ni.e element analyses and centri.0}ge model testi.g i. developi.g a f.ur-step semi.analyti.al approach f.r analysi. of.di.-sli. （normal and thrust） f.ult rupture propagati.n through sand, i.s emergence on the ground surf.ce, and i.s i.teracti.n wi.h raf. f.undati.ns. The present paper （Part Ⅰ） f.cuses on the ef.ects of.f.ulti.g i. the absence of.a structure （i.e., i. the f.ee-f.eld）. The semi.analyti.al approach compri.es two-steps： the f.rst deals wi.h the rupture path and the esti.ati.n of.the locati.n of.f.ult outcroppi.g, and the second wi.h the tectoni.ally- i.duced di.placement prof.le at the ground surf.ce. i. both cases, si.ple mechani.al analogues are used to deri.e si.pli.0}ed semi.analyti.al expressi.ns. Centri.0}ge model test data, i. combi.ati.n wi.h parametri. results f.om nonli.ear f.ni.e element analyses, are uti.i.ed f.r model cali.rati.n. The deri.ed semi.analyti.al expressi.ns are shown to compare reasonably well wi.h more ri.orous experi.ental and theoreti.al data, thus provi.i.g a usef.l tool f.r a f.rst esti.ati.n of.near-f.ult sei.mi. hazard.

关键词： f.ult rupture semi.analyti.al expressi.n soi.-structure i.teracti.n earthquake

来源：

维普期刊数据库

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Transverse approach between real world concentrati.ns of.SO_2, NO_2, BTEX, aldehyde emi.si.ns and corrosi.n i. the Grand Mare tunnel

引用

Journal of.Envi.onmental Sci.nces 2012年第7期24卷 1240-1250页

作者： i. Ameur-Bouddabbous J. Kasperek A. Barbi.r f. Harel B. Hannoyer GPM-UMR 6634 CNRS. Uf. Sci.nce and Technology University of Rouen BP 12 76801 Saint Etienne du Rouvray Cedex France LCAE Chemistry Department Science Faculty of Tunis Campus Universitaire 2092 El Manar Tunis Tunisie Di.NO Rue de Verdun 76160 Darnetal France

Wi.h regard to automoti.e traf.i., a tunnel-type semi.enclosed atmosphere i. characteri.ed by a hi.her concentrati.n of.gaseous pollutants than on urban traf.i. roads and hi.hli.hts the gaseous ef.luent speci.s havi.g an i.pact on materi.l degradati.n. Theref.re, a transverse approach between ai. quali.y and i.s consequences upon the longevi.y of.materi.ls i. necessary, i.plyi.g better knowledge of.tunnel atmosphere and a better understandi.g of.materi.l degradati.n i.si.e a tunnel f.r operati.g admi.i.trati.n. Gaseous pollutant measurements carri.d out i. a road tunnel i. Rouen （Normandy） gi.e the real world traf.i. concentrati.ns of.experi.ental exposure condi.i.ns. The sampli.g campai.ns, achi.ved i. summer and wi.ter i.clude SO2, NO2, BTEX and aldehyde analyses. Ef.luent prof.les i. the upward and downward tubes have been establi.hed. The current work shows that SO2, NO〉 f.rmaldehyde, acetaldehyde, propanal and butanal must be consi.ered i. the degradati.n process of.materi.ls i. a stuf.y envi.onment. As regards NO,, i.s concentrati.n depends on the modi.0}cati.n of.the automoti.e f.eet. The total aldehyde concentrati.ns i.di.ate no parti.ular trend between the two bores. f.rmaldehyde, acetaldehyde, propanal, butanal and acrolei. speci.s are the most abundant speci.s emi.ted by vehi.les and represent 90% to 95% of.the total aldehyde emi.si.ns.

关键词： SO2 tunnel study aldehydes NO2 BTEX atmospheri. corrosi.n

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Arcti. sea-i.e extent: No record mi.i.um i. 2023 or recent years

引用

Atmospheri. and Oceani. Sci.nce Letters 2025年第1期18卷 52-55页

作者： Ola M.Johannessen Tor i.Olaussen Nansen Sci.nti.0}c Soci.ty BergenNorway Nansen Envi.onmental and Remote Sensi.g Center BergenNorway

Arcti. sea-i.e extent reaches i.s mi.i.um each year i. September. On 11 September 2023 the mi.i.um was 4.969 mi.li.n square ki.ometers(***^(2)). Thi. was not a record low, whi.h occurred i. 2012, when the mi.i.um was 4.175 ***^(2), 0.794 ***^(2) less than the mi.i.um i. 2023. However, the i.e extent had decreased by 0.432 ***^(2) compared wi.h 2022. Nevertheless, the summer melti.g i. 2023 was remarkably less than expected when consi.eri.g the strong heat waves i. the atmosphere and ocean, wi.h record temperatures set around the world. i. general, there i. a hi.h correlati.n between the long-term decrease i. sea-i.e extent and the i.creasi.g CO_(2) i. the atmosphere, where the i.crease of.CO_(2) i. recent decades explai.s about 80% of.the decrease i. sea i.e i. September, whi.e the remai.der i. caused by natural vari.bi.i.y.

关键词： Sea i.e Arcti. Mi.i.um i.e Cli.ate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：