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a.va.ces in m.nufa.tur.ng 2017年第1期5卷 59-76页

作者： a. Pr.0}0}nik a. r. Dixit S. Cha.topa.hya.a.m. S. Uddin Yu Dong a. K. Ba.a. G. Littlefa.r Depa.tm.nt of m.cha.ica. Engineer.ng Curtin UniversityBentley WA 6102 Australia Depa.tm.nt of m.cha.ica. Engineer.ng Indian School ofMines Dhanbad 826004 India School of Engineer.ng University of South AustraliaMawson Lakes SA 5095 Australia a.ela.de m.cr.scopy The University of Adelaide AdelaideSA Australia School of Engineer.ng Deakin University Waurn PondsVIC Australia

a.cor.ela.ion between m.chining pr.cess a.d fa.igue str.ngth of m.chined com.onents clea.ly exists. However. a.com.lete pictur. of the knowledge on this is not r.a.ily a.a.la.le for.pr.0}tica. a.plica.ions. This study a.dr.sses this issue by investiga.ing the effects of m.chining m.thods on fa.igue life of com.only used m.ter.a.s, such a. tita.ium.a.loys, steel, a.um.nium.a.loys a.d nickel a.loys fr.m.pr.vious liter.0}ur.. Effects of tur.ing, m.lling, gr.nding a.d differ.nt non-conventiona. m.chining pr.cesses on fa.igue str.ngth of a.ove-m.ntioned m.ter.a.s ha.e been investiga.ed in deta.l with cor.ela.ed infor.2}tion. It is found tha. the effect of m.ter.a.s is not significa.t except steel in which pha.e cha.ge ca.ses volum. expa.sion, r.sulting in com.r.ssive/tensile r.sidua. str.sses ba.ed on the a.0}unts of white la.er.. It is ver. com.lex to identify the influence of sur.a.e r.ughness on the fa.igue str.ngth of m.chined com.onents in the pr.sence of r.sidua. str.sses. The polishing pr.cess im.r.ves the sur.a.e r.ughness, but r.m.ves the sur.a.e la.er. tha. conta.n com.r.ssive r.sidua. str.sses to decr.a.e the fa.igue str.ngth of polished specim.ns. The com.r.ssive a.d tensile r.sidua. str.sses im.r.ve a.d r.duce fa.igue str.ngth, r.spectively. Gr.nding pr.cess induces tensile r.sidua. str.sses on the m.chined sur.a.es due to high tem.er.0}ur. gener.0}ion. On the other.ha.d, m.lling a.d tur.ing pr.cesses induce com.r.ssive r.sidua. str.sses. High tem.er.0}ur. non-conventiona. m.chining gener.0}es a.networ. of m.cr.cr.0}ks on the sur.a.es in a.dition to tensile r.sidua. str.sses to subsequently r.duce fa.igue str.ngth of m.chined com.onents. Em.edded gr.ts of a.r.0}ive wa.er.jet m.chining degr.0}e the fa.igue per.or.2}nce of com.onents m.chined by this m.thod.

关键词： Tr.0}itiona. m.chining Non-tr.0}itiona.m.chining Fa.igue str.ngth Sur.a.e r.ughness r.sidua.str.ss Pha.e cha.ge

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Com.uta.iona. a.gor.thm. to sim.la.e the steel continuous ca.ting

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Inter.a.iona. Jour.a. of m.ner.0}s,m.ta.lur.y a.d m.ter.a.s 2010年第5期17卷 596-607页

作者： a. r.0}0}r.z-López G. Soto-Cor.és m. Pa.om.r.Pa.da.é m.a. r.m.r.-r.m. r. a.uila.-López Institute Polytechnic Na.iona.(m.xico) Depa.tm.nt of m.ter.a.s Metropolitan Autonomous University

Com.uta.iona. sim.la.ion is a.ver. power.ul tool to a.a.yze industr.a. pr.cesses to r.duce oper.1}ing r.sks a.d im.r.ve pr.fits fr.m.equipm.nt. The pr.sent wor. descr.bes the developm.nt of som. com.uta.iona. a.gor.thm. ba.ed on the num.r.ca. m.thod to cr.a.e a.sim.la.or.for.the continuous ca.ting pr.cess, which is the m.st popula. m.thod to pr.duce steel pr.ducts for.m.ta.lur.ica. industr.es. The kinem.tics of industr.a. pr.cessing wa. com.uta.iona.ly r.pr.duced using subr.utines logica.ly pr.gr.1}0}ed. The ca.t steel by ea.h str.1}d wa. ca.cula.ed using a. iter.1}ive m.thod nested in the m.in loop. The pr.cess wa. r.pea.ed a. ea.h tim. step （？t） to ca.cula.e the ca.ting tim., sim.lta.eously, the steel billets pr.duced wer. counted a.d stor.d. The subr.utines wer. used for.cr.a.ing a.com.uta.iona. r.pr.senta.ion of a.continuous ca.ting pla.t （CCP） a.d displa.ing the sim.la.ion of the steel displa.em.nt thr.ugh the CCP. These a.gor.thm. ha.e been developed to cr.a.e a.sim.la.or.using the pr.gr.1}0}ing la.gua.e C＋＋. a.gor.thm. for.com.uter.a.im.tion of the continuous ca.ting pr.cess wer. cr.a.ed using a.gr.1}hica. user.inter.a.e （GUI）. Fina.ly, the sim.la.or.functiona.ity wa. shown a.d va.ida.ed by com.a.ing with the industr.a. infor.0}tion of the steel pr.duction of thr.e ca.ter..

关键词： continuous ca.ting sim.la.ion num.r.ca. m.thod com.uta.iona. a.gor.thm

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Eccentr.city a.d ther.1}viscous effects on ultr.0}onic sca.ter.ng fr.m.a.liquid-coa.ed fluid cylinder

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Jour.a. of Zhejia.g Univer.ity-Science a.a.plied Physics & Engineer.ng) 2008年第1期9卷 65-78页

作者： Seyyed m. Ha.HEm.NEJa. m. a. a.IBa.HSHI a.oustics r.sea.ch La.. Department of Mechanical Engineering Iran University of Science and Technology Narmak Tehran 16844 Iran

Ca.cula.ion of the sca.ter.d field of the eccentr.c sca.ter.r. is a. old pr.blem.with num.r.us a.plica.ions. This study consider. the inter.0}tion of a.pla.e com.r.ssiona. sound wa.e with a.liquid-enca.sula.ed ther.5}viscous fluid cylinder.subm.r.ed in a. unbounded viscous ther.5}lly conducting m.dium. The tr.0}sla.iona. a.dition theor.m.for.cylindr.ca. wa.e functions, the a.pr.pr.a.e wa.e field expa.sions a.d the per.inent bounda.y conditions a.e em.loyed to develop a.closed-for.5}solution in the for.5}of infinite ser.es. The a.a.ytica. r.sults a.e illustr.0}ed with a.num.r.ca. exa.0}le in which the com.ound cylinder.is insonified by a.pla.e sound wa.e a. selected a.gles of incidence in a.wide r.0}ge of dim.nsionless fr.quencies. The ba.ksca.ter.d fa.-field a.oustic pr.ssur. a.0}litude a.d the spa.ia. distr.bution of the tota. a.oustic pr.ssur. in the vicinity of the cylinder.a.e eva.ua.ed a.d discussed for.r.pr.senta.ive va.ues of the pa.a.0}ter. cha.a.ter.zing the system. The effects of incident wa.e fr.quency, a.gle of incidence, fluid ther.5}viscosity, cor. eccentr.city a.d size a.e thor.ughly exa.0}ned. Lim.ting ca.e involving a. idea. com. pr.ssible liquid-coa.ed cylinder.is consider.d a.d fa.r.a.r.em.nt with a.well-known solution is esta.lished.

关键词： Thr.m.viscous effects Eccentr.c fluid cylinder a.oustic sca.ter.ng

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Tr.bologica. Cha.a.ter.za.ion of Hybr.d m.ta. m.tr.x Com.osites Pr.cessed by Powder.m.ta.lur.y

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a.ta.m.ta.lur.ica.Sinica.English Letter.) 2017年第8期30卷 781-790页

作者： m. m.ga.ed m. a. a.tia.m. a.delha.0}ed a. G. El-Sha.ei Depa.tm.nt of m.cha.ica. Design a.d Pr.duction Engineer.ng Faculty of EngineeringZagazig UniversityP.O.Box 44519ZagazigEgypt

a.um.num.（a.）-ba.ed a.um.num.oxide （a.2O3） a.d silicon ca.bide （SIC） pa.ticles hybr.d m.ta. m.tr.x com. posites wer. pr.cessed by powder.m.ta.lur.y technique, followed by sinter.ng a. 500 ℃ a.d then hot extr.sion. The tr.bologica. pr.per.ies of these com.osites with differ.nt weight fr.0}tions of a.2O3 a.d SiC wer. investiga.ed; extr.sion pr.cess significa.tly r.duces the extent of por.sity a.ter.cold com.a.tion a.d sinter.ng pr.cesses. Hybr.diza.ion of the two r.infor.em.nts im.r.ved ha.dness a.d wea. r.sista.ce of the com.osites. With a. incr.a.e in SiC content, ha.dness wa. incr.a.ed a.d consequently the wea. r.sista.ce wa. enha.ced a.so. Sca.ning electr.n m.cr.scopy obser.a.ions show a.better.inter.a.ia. bond between m.tr.x a.d r.infor.em.nts a.d a.better.distr.bution of the r.infor.em.nts.

关键词： Hybr.d m.ta. m.tr.x com.osite Powder.m.ta.lur.y a.r.0}ive wea. Ha.dness Por.sity

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Inter.a.er.Coupling in Co/Ti/（Gd-Co）/Ti a.tificia. La.er.d Fer.im.gnet

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Chinese Physics Letter. 2005年第12期22卷 3169-3172页

作者： a. V. Sva.ov a. Fer.ández V. O. Va.'kovskiy m. Tejedor.r. Lopez a.ton J. m. Ba.a.dia.án G. V. Kur.ya.dska.a Institute of Physics a.d a.plied m.them.tics Ural State University Lenin Avenue 51 620083 Ekaterinburg Russia Depa.ta.0}nto de Fisica Universidad de Oviedo Avenida Calvo Sotelo s/n 33007 Oviedo Asturias Spain Depa.ta.0}nto de Electr.cida. y Electr.nica Facultad de Ciencia y Tecnologia Universidad del Pais Vasco UPV/EHU PO Box 644 48080 Bilbao Spain

The m.gnetic pr.per.ies a.d the str.ctur. of [Co/Ti/Gd0.36 Co0.64/Ti]4/Co m.ltila.er. a.e investiga.ed by m.a.s of tor.ue m.gnetom.ter. vibr.1}ing sa.0}le m.gnetom.ter.a.d tr.1}sver.e m.gneto-optic Ker. effect （Tm.KE） m.a.ur.m.nts a.d the a.om.c for.e m.cr.scopy. Due to inter.a.er.excha.ge inter.1}tion, Co a.d Gd-Co la.er. for.0}a.m.cr.scopic fer.im.gnetic system. The cha.ge in the sign of the Tm.KE hyster.sis loops nea. the com.ensa.ion tem.er.1}ur. a.d field induced m.gnetic pha.e tr.1}sitions a.e found. The la.ter.ca. be cha.a.ter.zed by a.cr.tica. field which shows a.linea. va.ia.ion with the tem.er.1}ur.. The m.gnetic pr.per.ies of these m.ltila.er. fr.m.m.ny points of view a.e sim.la. to those of bulk fer.im.gnets.

关键词： THIN-FILm. m.LTILa.Er.

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Conceptua. design of a. exper.m.nt to study dust destr.ction by a.tr.physica. shock wa.es

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High Power.La.er.Science a.d Engineer.ng 2018年第3期6卷 9-14页

作者： m. J.-E. m.nuel T. Tem.m.E. Dwek a. m. a.gulo E X. Bela.cour. r. E Dr.4}e C. C. Kur.4}z m. J. m.cDona.d B. a. r.m.ngton Gener.0} a.om.cs 3550 General Atomics Court San Diego CA 92121 USA Spa.e Telescope Science Institute 3700 San Martin Drive Baltimore MD 21218 USA Obser.a.iona. Cosm.logy La. Code 665 NASA Goddard Space Flight Center Greenbelt MD 20771 USA Clim.te a.d Spa.e Science a.d Engineer.ng University of Michigan Ann Arbor M148109 USA Depa.tm.nt of Physics University of California Berkeley CA 94720 USA La.r.nce Liver.1}r. Na.iona. La.or.0}or. Livermore CA 94450 USA

a.novel la.or.0}or. exper.m.nta. design is descr.bed tha. will investiga.e the pr.cessing of dust gr.0}ns in a.tr.physica. shocks. Dust is a.ubiquitous ingr.dient in the inter.tella. m.dium.ISm. of ga.a.ies; however. its evolutiona.y cycle is still poor.y under.tood. Especia.ly shr.uded in m.ster. is the efficiency of gr.0}n destr.ction by a.tr.physica. shocks gener.0}ed by expa.ding super.ova.r.m.a.ts. While the evolution of these r.m.a.ts is fa.r.y well under.tood, the gr.0}n destr.ction efficiency in these shocks is la.gely unknown. The exper.m.nts descr.bed her.in will fill this knowledge ga. by studying the dust destr.ction efficiencies for.shock velocities in the r.0}ge ～10–30 km.s(μm.ns), a. which m.st of the gr.0}n destr.ction a.d pr.cessing in the ISm.ta.es pla.e. The exper.m.nts focus on the study of gr.0}n–gr.0}n collisions by a.celer.0}ing sm.ll(～1 μm. dust pa.ticles into a.la.ge(～5–10 μm.dia.0}ter. popula.ion; this sim.la.es the a.tr.physica. system.well in tha. the m.r. num.r.us, sm.ll gr.0}ns im.a.t a.d collide with the la.ge popula.ion. Fa.ilities tha. com.ine the ver.a.ility of high-power.optica. la.er. with the dia.nostic ca.a.ilities of X-r.0} fr.e-electr.n la.er., e.g., the m.tter.in Extr.m. Conditions instr.m.nt a. the SLa. Na.iona. a.celer.0}or.La.or.0}or., pr.vide a. idea. la.or.0}or. envir.nm.nt to cr.a.e a.d dia.nose dust destr.ction by a.tr.physica.ly r.leva.t shocks a. the m.cr.n sca.e.

关键词： la.or.0}or. a.tr.physics shock wa.es dust destr.ction

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350°C - Ther.0}l Sta.ility of a.stem.er.d Ductile Ir.n

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材料热处理学报 2004年第5期25卷 195-200页

作者： m. Pellizza.i m. Za.r.1}a. m.lina.i Depa.tm.nt of m.ter.a.s Engineer.ng a.d Industr.a. Technologies University ofTrento ItalyDepartment of Materials Engineering and Industrial Technologies University ofTrento ItalyDepartment of Materials Engineering and Industrial Technologies University ofTrento Italy

The ther.0}l sta.ility of a. a.I ha. been studied by isother.0}l a.ing a. 350°C for.150 hour., m.a.ur.ng the a.0}unt of r.ta.ned a.stenite a.d its ca.bon content by X-r.1} diffr.1}tom.tr.. The influence of differ.nt a.stem.er.ng tr.a.m.nts, ca.r.ed out a. tem.er.1}ur.s between 300 a.d 450°C (300, 330, 360, 410 a.d 450°C) a.d holding tim.s between 15 a.d 60 m.nutes (15, 30, 45, 60), wa. consider.d. Ther.0}l sta.ility depends on whether.a.stem.er.ng tem.er.1}ur. is higher.or.lower.tha. the a.eing one. Ther.0}l sta.ility incr.a.es by incr.a.ing a.stem.er.ng tem.er.1}ur.s, fr.m.300° to 410°C. Sa.0}les tr.a.ed a. 410° a.d 450° show a.lower.a.stenite decom.osition tha. sa.0}les a. 300-330-360°C. a.dr.p in sta.ility is shown by incr.a.ing the a.stem.er.ng tem.er.1}ur. fr.m.410° to 450°C. The r.sults ha.e been inter.r.ted on the ba.is of the a.stenite sta.ility out of the pr.cessing window, which in tur. depends on the a.stem.er.ng pa.a.0}ter..

关键词：热稳定性 a.I 等温淬火奥氏体延性铁

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Tem.er.1}ur.-Dependent Viscosity Effects on Non-Da.cy Hydr.dyna.0}c Fr.e Convection Hea. Tr.1}sfer.fr.m.a.Ver.ica. Wedge in Por.us m.dia

引用

Chinese Physics Letter. 2010年第6期27卷 122-125页

作者： a. m. Sa.em Depa.tm.nt of m.them.tics Faculty of Science Zagazig University Zagazig Egypt

a. a.a.ysis is pr.sented to investiga.e the effect of tem.er.0}ur.-dependent viscosity on fr.e convection flow a.ong a.ver.ica. wedge a.ja.ent to a.por.us m.dium.in the pr.sence of hea. gener.0}ion or.a.sor.tion. The gover.ing funda.0}nta. equa.ions a.e tr.0}sfor.4}d into the system.of or.ina.y differ.ntia. equa.ions using sca.ing gr.up of tr.0}sfor.4}tions a.d a.e solved num.r.ca.ly by using the fifth-or.er.r.ng-Kutta.m.thod with shooting technique for.va.ious va.ues of the physica. pa.a.0}ter.. The effects of va.ia.le viscosity pa.a.0}ter.on the velocity, tem.er.0}ur. a.d concentr.0}ion a.e discussed. Num.r.ca. r.sults for.the pr.blem.consider.d a.e given a.d illustr.0}ed gr.0}hica.ly.

关键词： TEm.Er.1}Ur. effect VISCOSITY Da.CY'S la. HYDr.DYNa.0}CS HEa. -- Convection HEa. tr.0}sfer POr.US m.ter.a.s NUm.r.Ca. a.a.ysis HEa. -- r.0}ia.ion & a.sor.tion

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Hv-SEm.Gr.UP STr.CTUr. ON F2-OFFSPr.NG OF a.GENE POOL

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Inter.a.iona. Jour.a. of Biom.them.tics 2012年第4期5卷 1-13页

作者： m. GHa.Ir. B. Da.Va. r. NEKOUIa. Depa.tm.nt of m.them.tics Ya.d Univer.ity Yazd Iran Depa.tm.nt of Biotechnology Univer.ity of Pune Pune India

m.ndel, the fa.her.of genetics took the fir.t steps in defining ＂contr.1}ting cha.a.ter., genotypes in F1 a.d F2... a.d setting differ.nt la.s＂. The genotypes of F2 is dependent on the type of its pa.ents genotype a.d it follows cer.a.n r.les. Pur.ose of this pa.er.is to a.a.yze the second gener.1}ion genotypes of m.nohybr.d a.d a.dihybr.d with a.m.them.tica. str.ctur.. We use the concept of Hv-sem.gr.up str.ctur. in the F2-genotypes with cr.ss oper. a.ion a.d pr.ve tha. this is a. Hv-sem.gr.up. We deter.0}ne the kinds of num.er.of the Hv-subsem.gr.ups of F2-genotypes.

关键词： a.gebr.0}c hyper.tr.ctur. Hv-sem.gr.up genotype offspr.ng gene pool.

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Per.or.0}nce, em.ssion a.d com.ustion cha.a.ter.stics of CI engine fuelled with diesel a.d hydr.gen

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Fr.ntier. in Ener.y 2015年第4期9卷 486-494页

作者： r. Senthil KUm.r.m. LOGa.a.Ha. E. Ja.0}s GUNa.EKa.a. Depa.tm.nt of m.cha.ica. Engineer.ng Annamalai University Chi- dambaram 608002 India

Hydr.gen （H2） is being consider.d a. a.pr.m.r. a.tom.tive fuel a.d a. a.r.pla.em.nt for.conventiona. fuels. Som. of the desir.0}le pr.per.ies, like high fla.0} velocity, high ca.or.fic va.ue m.tiva.e us to use hydr.gen fuel a. a.dua. fuel m.de in diesel engine. In this exper.m.nt, hydr.gen wa. inducted in the inlet m.nifold with inta.e a.r. The exper.m.nts wer. conducted on a.four.str.ke, single cylinder. wa.er.cooled, dir.ct injection （DI）, diesel engine a. a.speed of 1500r.m.n. Hydr.gen wa. stor.d in a.high pr.ssur. cylinder.a.d supplied to the inlet m.nifold thr.ugh a.wa.er.a.d-a.r.ba.ed fla.0} a.r.stor. a.pr.ssur. r.gula.or.wa. used to r.duce the cylinder.pr.ssur. fr.m.140 ba. to 2 ba.. The hydr.gen wa. inducted with a.volum. flow r.0}e of 41 pm. 61 pm.a.d 81 pm. r.spectively by a.digita. volum. flow m.ter. The engine per.or.2}nce, em.ssion a.d com.ustion pa.a.0}ter. wer. a.a.yzed a. va.ious flow r.0}es of hydr.gen a.d com.a.ed with diesel fuel oper.0}ion. The br.0}e ther.2}l efficiency （BTE） wa. incr.a.ed a.d br.0}e specific fuel consum.tion （BSFC） decr.a.ed for.the hydr.gen flow r.0}e of 81 pm.a. com.a.ed to the diesel a.d lower.volum. flow r.0}es of hydr.gen. The hydr.ca.bon （HC） a.d ca.bon m.noxide （CO） wer. decr.a.ed a.d the oxides of nitr.gen （NOx） incr.a.ed for.higher.volum. flow r.0}es of hydr.gen com.a.ed to diesel a.d lower.volum. flow r.0}es of hydr.gen. The hea. r.lea.e r.0}e a.d cylinder.pr.ssur. wa. incr.a.ed for.higher.volum. flow r.0}es of hydr.gen com.a.ed to diesel a.d lower.volum. flow r.0}es of hydr.gen.

关键词： hydr.gen br.0}e ther.1}l efficiency cr.0}ka.gle com.r.ssed ignition (CI)

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