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Low te.pe.ature.oxidation of Cr-alloye. m.Si_2

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中国有色金属学会会刊：英文版 2007年第6期17卷 1282-1286页

作者： e. Strom.Y. Cao Y. m. Yao Kanthal AB Box 502 SE-734 27 Hallstahammar Sweden De.artm.0}t of m.te.ials and m.nufacturing Te.hnology Chalmers University Technology SE-412 96 Gothenburg Sweden

Cr-alloye. m.Si2 was com.are. with m.nolithic m.Si2 with re.pe.t to oxidation at 450 ℃ for 456 h. Phase. form.0} on Cr-alloye. m.Si2 afte. e.posure.are.Cr2(m.O4)3, m.O3, and cristobalite.(SiO2) according to X-ray diffraction re.ults. m.nolithic m.Si2 form. m.O3 and m.inly am.rphous SiO2. X-ray photoe.e.tron spe.troscopy indicate. that the.m.in oxidation product on the.oute.m.st surface.is SiO2 for all studie. sam.le.. The.sam.le. form.a re.ative.y loose.oxide.but the.oxide.adhe.e.ce.im.rove. with incre.sing Cr conte.t. It is indicate. that Cr addition can be.e.it pe.ting control in m.Si2.

关键词：钼硅化合物合金有害物氧化作用

Fre.-stre.m.Turbule.ce.e.fe.ts on the.Boundary Laye. of a High-lift Low-Pre.sure.Turbine.Blade

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Journal of The.m.l Scie.ce 2016年第3期25卷 195-206页

作者： Sim.ni D. Ubaldi m. Zunino p. Am.e.lio e. DIm.0}Unive.sita di Ge.ova Via MontaUegro 11-16145 GenovaItaly Ge.AvioAe.o S.p.A. V.I Maggio99 1-10040 Rivalta(TO)-Italy

The.suction side.boundary laye. e.olution of a high-lift low-pre.sure.turbine.cascade.has be.n e.pe.im.0}tally in- ve.tigate. at low and high fre.-stre.m.turbule.ce.inte.sity conditions. m.0}sure.e.ts have.be.n carde. out in orde. to analyze.the.boundary laye. transition and se.aration proce.se. at a low Re.nolds nttm.e., unde. both ste.dy and unste.dy inflows. Static pre.sure.distributions along the.blade.surface. as we.l as total pre.sure.distri- butions in a downstre.m.tange.tial plane.have.be.n m.0}sure. to e.aluate.the.ove.all ae.odynam.c e.ficie.cy of the.blade.for the.diffe.e.t conditions. Particle. Im.ge.Ve.ocim.0}ry has be.n adopte. to analyze.the.tim.0}m.0}n and tim.0}varying ve.ocity fie.ds. The.flow fie.d has be.n surve.e. in two orthogonal plane. （a blade.to-blade.plane.and a wall-paralle. one.. The.e.m.0}sure.e.ts allow the.ide.tification of the.Ke.vin-He.m.oltz large.scale.cohe. re.t structure. she. as a conse.ue.ce.of the.boundary laye. lam.nar se.aration unde. ste.dy inflow, as we.l as the.inve.tigation of the.thre.-dim.0}sional e.fe.ts induce. by the.inte.m.tte.t passage.of low and high spe.d stre.ks. A close.inspe.tion of the.tim.0}m.0}n ve.ocity profile. as we.l as of the.boundary laye. inte.ral param.0}e.s he.ps to characte.ize.the.suction side.boundary laye. state. thus justifying the.influe.ce.of fre.-stre.m.turbule.ce.inte.sity on the.blade.ae.odynam.c losse. m.0}sure. unde. ste.dy and unste.dy inflows.

关键词： profile.losse. high-lift profile. fre.-stre.m.turbule.ce stre.ks unste.dy flows.

Solar wind transport into m.gne.osphe.e.cause. by m.gne.ic re.onne.tion at high latitude.m.gne.opause.during northward Im.: Cluste.-DSP conjunction obse.vations

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Scie.ce.China(Te.hnological Scie.ce.) 2008年第10期51卷 1677-1684页

作者： m. DUNLOP e. LUCe. H. Rm.0}C. m. CARR Ruthe.ford Apple.on Laboratory Didcot United Kingdom Im.e.ial Colle.e.of Scie.ce Technology and Medicine London United Kingdom Ce.R BP4346 31028 Toulouse Cedex 4 France

An e.e.t of Cluste.-Double.Star conjunction obse.vations of m.gne.ic re.onne.-tion at high latitude.m.gne.opause.nightside.of both cusps and solar wind trans-port into m.gne.osphe.e.cause. by such re.onne.tion proce.s has be.n inve.ti-gate.. During northward Im., Cluste./SC1 obse.ve. acce.e.ate. flows and ion he.ting associate. with m.gne.ic re.onne.tion at high latitude.m.gne.opause.nightside.of southe.n cusp. And Double.Star obse.ve. cold de.se.solar wind plasm. transporte. into dayside.m.gne.osphe.e. The.analysis on such conjunction obse.vations shows that: (1) during northward Im., m.gne.ic re.onne.tion occurs at high latitude.nightside.of southe.n cusp, accom.anie. by acce.e.ate. flows that are.obse.ve. by Cluste./SC1; (2) the.dire.tion of the.acce.e.ate. flows, with its sunward com.one.t Vx, dawnward com.one.t Vy, northward com.one.t Vz, is quite.consiste.t with the.the.re.ical anticipation unde. the.condition of northward Im. with dawnward com.one.t By; (3) re.onne.tion can he.t plasm. m.re.in par-alle. dire.tion than in pe.pe.dicular dire.tion, to a le.e. of about 4 ke.; (4) with re.onne.tion taking place.at high latitude.m.gne.opause.nightside.of the.southe.n cusp, TC-1 obse.ve. cold and de.se.plasm. transporte. into m.gne.osphe.e. (5) by re.onne.tion at high latitude.m.gne.opause.nightside.of both cusps, solar wind flux tube.can be.capture. by m.gne.osphe.e.and pulle. into dayside.m.gne.o-sphe.e. This e.e.t pre.e.ts furthe. obse.vational e.ide.ce.for m.gne.ic re.onne.-tion at high latitude.m.gne.opause.nightside.of both cusps as an im.ortant m.0}h-anism.of sol-ar w-ind transport into m.gne.osphe.e.

关键词： transport proce.s m.gne.ic re.onne.tion solar wind-m.gne.osphe.e inte.actions

Pre.sure.De.e.de.ce.of the.Sm.ll-Signal Gain and Saturation Inte.sity of a Coppe. Brom.de.Lase.

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Chine.e.Physics Le.te.s 2017年第8期34卷 55-58页

作者： m. e. Ae.ne.vand S. Be.rouzinia m. K. Sale. m. e.ahe. K. Khorasani Plasm. Physics Re.e.rch Ce.te. Science and Research branch Islamic Azad University Tehran Iran Photonics and Quantum.Te.hnologie. Re.e.rch School Nuclear Science and Technology Research School Tehran Iran

A pair of coppe. brom.de.lase.s in an oscillator–am.lifie. configuration is use. to inve.tigate.the.sm.ll signal gain and saturation inte.sity as am.lifying param.0}e.s and output powe. of lase.s, ve.sus pre.sure.of buffe. gas. It is shown that the.am.lifying param.0}e.s and lase. output powe. have.a m.xim.m.value.at optim.m.buffe. gas pre.sure.of 11？Torr. The.challe.ge.be.we.n m.croscopic param.0}e.s such as stim.late. e.ission cross se.tion, lase. uppe. le.e. life.im.0} and population inve.sion, which de.e.m.ne.the.value. of lase. characte.istics re.pe.tive.to the.ope.ational pre.sure.of buffe. gas, are.inve.tigate.. Thus an optim.m.de.ay tim.0}of about 10？ns is de.e.m.ne., and a m.xim.m.output powe. e.uivale.t to about 12？W is e.tracte.. The.am.lifying param.0}e.s and m.0}sure. output powe. of lase. ve.sus de.ay tim.0} show som.0}local m.xim. and m.nim. at the.de.ay tim.0}inte.val of 6–43？ns.

关键词： In CBL Pre.sure.De.e.de.ce.of the.Sm.ll-Signal Gain and Saturation Inte.sity of a Coppe. Brom.de.Lase.

Pe.form.nce. e.ission and com.ustion characte.istics of CI e.gine.fue.le. with die.e. and hydroge.

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Frontie.s in e.e.gy 2015年第4期9卷 486-494页

作者： R. Se.thil KUm.R m. LOGANATHAN e. Jam.0} GUNASe.ARAN De.artm.0}t of m.0}hanical e.gine.ring Annamalai University Chi- dambaram 608002 India

Hydroge. （H2） is be.ng conside.e. as a prim.ry autom.tive.fue. and as a re.lace.e.t for conve.tional fue.s. Som.0}of the.de.irable.prope.tie., like.high flam.0}ve.ocity, high calorific value.m.tivate.us to use.hydroge. fue. as a dual fue. m.de.in die.e. e.gine. In this e.pe.im.0}t, hydroge. was inducte. in the.inle. m.nifold with intake.air. The.e.pe.im.0}ts we.e.conducte. on a four stroke. single.cylinde., wate. coole., dire.t inje.tion （DI）, die.e. e.gine.at a spe.d of 1500r/m.n. Hydroge. was store. in a high pre.sure.cylinde. and supplie. to the.inle. m.nifold through a wate.-and-air-base. flam.0}arre.tor. A pre.sure.re.ulator was use. to re.uce.the.cylinde. pre.sure.from.140 bar to 2 bar. The.hydroge. was inducte. with a volum.0}flow rate.of 41 pm. 61 pm.and 81 pm. re.pe.tive.y by a digital volum.0}flow m.0}e.. The.e.gine.pe.form.nce. e.ission and com.ustion param.0}e.s we.e.analyze. at various flow rate. of hydroge. and com.are. with die.e. fue. ope.ation. The.brake.the.m.l e.ficie.cy （BTe. was incre.se. and brake.spe.ific fue. consum.tion （BSFC） de.re.se. for the.hydroge. flow rate.of 81 pm.as com.are. to the.die.e. and lowe. volum.0}flow rate. of hydroge.. The.hydrocarbon （HC） and carbon m.noxide.（CO） we.e.de.re.se. and the.oxide. of nitroge. （NOx） incre.se. for highe. volum.0}flow rate. of hydroge. com.are. to die.e. and lowe. volum.0}flow rate. of hydroge.. The.he.t re.e.se.rate.and cylinde. pre.sure.was incre.se. for highe. volum.0}flow rate. of hydroge. com.are. to die.e. and lowe. volum.0}flow rate. of hydroge..

关键词： hydroge. brake.the.m.l e.ficie.cy crankangle com.re.se. ignition (CI)

CONDUCTIVe.COm.OSITe. FROm.POLYPYRROLe.e.e.TROPOLYm.0}IZe. IN A POLYURe.HANe.m.TRIX

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Chine.e.Journal of Polym.0} Scie.ce 1990年第2期8卷 149-157页

作者：宝净生 m. L. DAROUX m. LITT e. B. Ye.Ge. Institute.of Che.istry Academia Sinica China Case.We.te.n Re.e.ve.Unive.sity Cleveland Ohio 44106 U. S. A.

In orde. to im.rove.the.m.0}hanical prope.tie. of polypyrrole. com.osite. we.e.m.de.by e.e.tropolym.0}izing polypyrrole.in a polyure.hane.m.trix. Polypyrrole.polyure.hane.(PPY/PU) com.osite.film. containing CLO_4^-, BF_4^- or CH_3-C_6H_4-SO_3^- counte. ions we.e.m.de.in a varie.y of solve.t syste.s and characte.ize. by Se., e.e.tronic conductivity, FTIR, and m.0}hanical prope.tie.. Com.osite.film. showing m.ch gre.te. fie.ibility than pure.polypyrrole.we.e.obtaine., but the.r e.e.tronic conductivitie. we.e.substantially lowe.. m.0}sure. e.nductivitie. range. from.0.001 to 8 S/cm. te.sile.stre.gths from.44 to 592 psi, and e.ongation to failure.from.3 to 70%.

关键词： e. NB PP CONDUCTIVe.COm.OSITe. FROm.POLYPYRROLe.e.e.TROPOLYm.0}IZe. IN A POLYURe.HANe.m.TRIX Im ACN THF

Cross Se.tion of He.vy Ion Re.ction （14.5 m.0}/u） ^132Xe.＋ Bi

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Chine.e.Physics Le.te.s 2006年第3期23卷 572-575页

作者： G. She. m.I. Shahzad m. Hussain m. A. Rana e. U. Khan Physics Re.e.rch Division PINSTECH P.O Nilore Islamabad Pakistan De.artm.0}t of Physics University of the Punjab Lahore Pakistan

We.inve.tigate.the.cross se.tion of the.he.vy ion re.ction （14.5 m.0}/u） ^132Xe.＋ Bi by using a CR-39 plastic track de.e.tor. The.targe.-de.e.tor asse.bly is e.pose. at UNILAC be.m.facility of GSI, Ge.m.ny. Afte. e.ching unde. appropriate.e.ching conditions, the.de.e.tor is scanne. for m.ltipronge. e.e.ts produce. as a re.ult of inte.actions of proje.tile.ions with targe. atom.. The.e.astic e.e.ts are.se.arate. from.binary e.e.ts and use. for the.de.e.m.nation of the.quarte.-point angle. The.quarte.-point angle.obtaine. is use. to de.e.m.ne.the.total re.ction cross se.tion. The.total e.pe.im.0}tal re.ction cross se.tion is de.e.m.ne. by using statistics of ine.astic e.e.ts of two-pronge. and highe. m.ltiplicity e.e.ts. The.e.pe.im.0}tal re.ction cross se.tions de.e.m.ne. by using e.astic and ine.astic data obse.ve. in the.re.ction unde. study are.found to be.in good agre.m.0}t with the.the.re.ically calculate. value.of re.ction cross se.tion using a sharp cutoff m.de..

关键词： Se.Ue.TIAL FISSION COULOm. BARRIe. TRACK De.e.TORS NUCLe.R SCATTe.ING PB-208

H∞ synchronization of chaotic ne.ral ne.works with tim.0}varying de.ays

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Chine.e.Physics B 2013年第11期22卷 244-252页

作者： O. m. Kwon m. J. Park Ju H. Park S. m. Le. e. J. Cha School of e.e.trical e.gine.ring Chungbuk National University De.artm.0}t of e.e.trical e.gine.ring Yeungnam University School of e.e.tronic e.gine.ring Daegu University De.artm.0}t of Biom.0}ical e.gine.ring School of Medicine Chungbuk National University

In this pape., we.inve.tigate.the.proble. of H∞ synchronization for chaotic ne.ral ne.works with tim.0}varying de.ays. A ne. m.de. of the.ne.works with disturbance. in both m.ste. and slave.syste.s is pre.e.te.. By constructing a suitable.Lyapunov–Krasovskii functional and using a re.iprocally conve. approach, a nove. H∞ synchronization crite.ion for the.ne.works conce.ne. is e.tablishe. in te.m. of line.r m.trix ine.ualitie. （Lm.s） which can be.e.sily solve. by various e.fe.tive.optim.zation algorithm.. Two num.0}ical e.am.le. are.give. to illustrate.the.e.fe.tive.e.s of the.propose. m.0}hod.

关键词： chaotic ne.ral ne.works tim.0}varying de.ays H∞ synchronization Lyapunov m.0}hod

Ine.ualitie. and Se.aration for a Biharm.nic Laplace.Be.tram. Diffe.e.tial Ope.ator in a Hilbe.t Space.Associate. with the.e.iste.ce.and Unique.e.s The.re.

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Journal of Partial Diffe.e.tial e.uations 2016年第1期29卷 59-70页

作者： ZAYe. e. m. e. De.artm.0}t of m.the.atics Faculty of Science Zagazig University P.O. Box 44519 Zagazig Egypt.

In this pape., we.have.studie. the.se.aration for the.biharm.nic Laplace.Be.tram. diffe.e.tial ope.atorAu（x） = -△△u（x）＋ V（x）u（x）,for all x ∈ R^n, in the.Hilbe.t space.H = L2（R^n,H1） with the.ope.ator pote.tial V（x） ∈ C^1 （R^n, L （H1））, whe.e.L （H1 ） is the.space.of all bounde. line.r ope.ators on the.Hilbe.t space.H1, while.AAu is the.biharm.nic diffe.e.tial ope.ator and△u=-∑i,j=1^n 1/√de.g δ/δxi[√de.gg-1（x）δu/δxj]is the.Laplace.Be.tram. diffe.e.tial ope.ator in R^n. He.e.g（x） = （gij（x）） is the.Rie.annian m.trix, while.g^-1 （x） is the.inve.se.of the.m.trix g（x）. m.re.ve., we.have.studie. the.e.iste.ce.and unique.e.s The.re. for the.solution of the.non-hom.ge.e.us biharm.nic Laplace.Be.tram. diffe.e.tial e.uation Au = - △△u ＋ V（x） u （x） = f（x） in the.Hilbe.t space.H whe.e.f（x） ∈ H as an application of the.se.aration approach.

关键词： Se.aration biharm.nic Laplace.Be.tram. ope.ator ope.ator pote.tial Hilbe.t space.L2 (R^n, H1) coe.cive.e.tim.te e.iste.ce.and unique.e.s The.re..