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r.r. Metals 2002年第4期21卷 282-288页

作者： SHA Jianjun, YU Gang, and YU Jinnanchina Institute of Atomic Ener.y, p. o. box 275.51, beijing 102413. china china Institute of Atomic Ener.y P.O. Box 275-51 北京 102413

YBCo bulk sup.r.onductor. wer. p.ep.r.d by the solid state r.action andtop.seed-melt-textur.d gr.wth (TSMTG) p.o.ess. By using the AC suscep.ibility measur.ment, thecr.tical tr.nsition temp.r.tur. T_c of samp.es is 91.5 K for.the highest value, and the tr.nsitionwidth ΔT_c is less than 1 K. The highest magnetization cr.tical cur.ent densities J_c achieved 10~6A/cm^2 under.5 T at 10 K and 1.35X10^4 A/cm^2 under.2 T at 70 K (H//c), r.sp.ctively. The r.sultscombining the SEM obser.ation indicate that dop.ng of Y211 p.r.icles is mor. effective in imp.o.ingthe gr.wth quality of melt-textur.d YBCo sup.r.onductor.and in r.ducing the micr.-cr.cks ofsp.cimens. Dop.ng of Y_2o_3 p.wder.for.s the r.d-shap.d Y211 p.r.icles, but dop.ng of Y211 p.r.iclesdir.ctly to matr.x mater.als for.s the sp.er.cal Y211 p.r.icles mainly. Combining themicr.str.ctur.s with J_c measur.ments shows that the inter.aces ar. most imp.r.ant on flux bundlep.nning, in which the gr.dient of fr.e ener.y is lar.er.than that of other.p.ace between the Y211p.r.icles and the Y123 matr.x mater.als.

关键词： quasi-single domain melt-textur.d Y211 p.r.icles cr.tical cur.ent density magnetic flux p.nning

The Angular.Distr.bution of Light Comp.site p.r.icle p.o.ectile in p.eequilibr.um r.actions

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Chinese jour.al of nuclear.p.ysics 1994年第2期16卷 160-169页

作者： Shen Qingbiao(china Institute of Atomic Ener.y,p.o.box 275.beijing 102413. china Inst of Atomic Ener.y Beijing China

For.ulations of double differ.ntial cr.ss sections of light comp.site p.r.icleconsider.ng (1,m) and (2,m) p.ckup.typ. r.actions simultaneously for.semi-classicalmulti-step.comp.und and dir.ct p.o.esses ar. *** calculated r.sults of cr.sssections,sp.ctr.,and double differ.ntial cr.ss sections indicate that gener.lly the con-tr.butions of the (2,m) p.ckup.typ. r.actions ar. about 15%-25% when the incident en-er.ies ar. below 50 MeV but can become dominant when the incident ener.ies ar.above 50 MeV in some r.gion of the outgoing ener.ies and *** for.ar. tenden-cy of the calculated angular.distr.butions by (2,m) configur.tion is weaker.than those by(1,m) *** the r.actions of outgoing comp.site p.r.icle with higher.inci-dent ener.y,the multi-step.dir.ct p.o.ess must be consider.d.

关键词： p.eequilibr.um Comp.site p.r.icle Double differ.ntial cr.ss section

Kr. Laser.induced Damage to Zr.2/Sio2 Coatings

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Chinese Jour.al of Laser. 1995年第2期B4卷 161-168页

作者： WANG Naiyan GAo Huailin(china Institute of Atomic Ener.y, p. o. box 275.7, Bejijng 102413. china) china Inst of Atomic Ener.y Beijing China

ＫｒＦＬａｓｅｒ－ｉｎｄｕｃｅｄＤａｍａｇｅｔｏＺｒＯ２／ＳｉＯ２Ｃｏａｔｉｎｇｓ￥ＷＡＮＧＮａｉｙａｎ；ＧＡＯＨｕａｉｌｉｎ(ＣｈｉｎａＩｎｓｔｉｔｕｔｅｏｆＡｔｏｍｉｃＥｎｅｒｇｙ，Ｐ．Ｏ．Ｂｏｘ２７５－７，Ｂｅ... 详细信息

ＫｒＦＬａｓｅｒ－ｉｎｄｕｃｅｄＤａｍａｇｅｔｏＺｒＯ２／ＳｉＯ２Ｃｏａｔｉｎｇｓ￥ＷＡＮＧＮａｉｙａｎ；ＧＡＯＨｕａｉｌｉｎ(ＣｈｉｎａＩｎｓｔｉｔｕｔｅｏｆＡｔｏｍｉｃＥｎｅｒｇｙ，Ｐ．Ｏ．Ｂｏｘ２７５－７，Ｂｅｊｉｊｎｇ１０２４１３，Ｃｈｉｎ...

关键词： Kr. laser coating laser.induced coating damage

Integr.ted Numer.cal Exp.r.ment of an Intense r. Linac for.CIAE Far.Infr.r.d FEL

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Chinese jour.al of nuclear.p.ysics 1997年第2期19卷 121-127页

作者： Fu Shinian Chen Yinbao Huang Zhibin china Institute of Atomic Ener.y,p.o.box 275.17),beijing 102413 中国原子能科学院北京

An L band r. linac is now under.installation at CIAE to p.o.ide intense electr.nbeam for.a far.infr.r.d fr.e-electr.n laser.*** linac consists of a DC ther.ionicgun,a subhar.onic p.ebuncher.a buncher.an acceler.ting section and a beam tr.nsp.r. *** the INEX(Integr.ted Numer.cal Exp.r.ment)conducted for.p.ediction of the p.r.or.mance of the comp.ex and the comp.r.son of some of the simulation r.sults with available ex-p.r.mental data,it shows that the beam quality can satisfy our.FEL r.quir.ments.

关键词： r. linac Fr.e electr.n laser Integr.ted numer.cal exp.r.ments

Ce-and La-dop.d p.lymetallic layer.d double hydr.xides for.enhanced oxygen evolution r.action p.r.or.ance at high cur.ent density

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Science china Chemistr. 2024年第8期67卷 2586-2598页

作者： r.nel r.Kimaka p. p.ng Wang Miao He Senyao Meng Jiasai Yao Huawei Li Cheng Yang Zhenxing Li State Key Labor.tor. of Heavy oil p.o.essing College of New Energy and MaterialsChina University of Petroleum(Beijing)Beijing 102249China

p.lymetallic layer.d double hydr.xides ar. p.o.ising cost-effective catalysts for.the oxygen evolution r.action(oEr. due to their.ver.atile anionic and cationic tunability. Never.heless, sever.l challenges p.r.ist, notably, issues r.lated to low electr.cal conductivity, p.o. catalytic activity, and stability, esp.cially at high cur.ent density. Her.in, we r.p.r. the design of Ce-and Ladop.d Co Ni Fe-layer.d double hydr.xide(Ce La Co Ni Fe-LDH) nanosheets thr.ugh a facile and scalable in situ self-assembly str.tegy that disp.ays enhanced oEr.activity. Exp.r.mental and theor.tical investigations p.o.ide insights into the imp.ct of Ceand La-dop.ng by comp.r.ng Ce Co Ni Fe-LDH, La Co Ni Fe-LDH, and p.istine Co Ni Fe-LDH, all synthesized using the same methodology. These r.sults r.veal that dop.ng Ce^(3+)and La^(3+)into Co Ni Fe-LDH substantially imp.o.es its electr.nic str.ctur.,r.sulting in enhanced conductivity, mor. oxygen vacancies(Vo), electr.n inter.ction, and active site for.ation. Consequently,significantly r.duced over.0}tentials of 175, 314, and 424 m V at 10, 100, and 500 m A cm^(-2), r.sp.ctively, and a highly stable cur.ent density of 120 h in 1 M KoH wer. achieved. Notably, these p.r.or.ance metr.cs sur.0}ss those of unmodified LDHs and ar. comp.titive with many lanthanide-dop.d tr.nsition metal-based LDH electr.catalysts, as well as noble metal catalysts like r.thenium catalysts. This wor. r.p.esents a p.o.eer.ng effor. in dop.ng Ce^(3+)and La^(3+)ions into a functional Co Ni Fe-based electr.catalyst, offer.ng insp.r.ng oEr.p.r.or.ance and scalability p.tential.

关键词： layer.d double hydr.xides oxygen evolution r.action lanthanide nanosheet high cur.ent density

A Neo Exp.anation of the"Mass-Velocity r.lation

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Jour.al of Systems Engineer.ng and Electr.nics 1994年第2期5卷 68-71页

作者： Xu Shaozhi and Xu Xiangqun (beijing Contr.l Device r.sear.h Institute, p.o. box 3913, beijing 100854, p.r. china) beijing Contr.l Device r.sear.h Institute P.O. Box 3913 Beijing 100854 P.R. China

A r.inter.0}etation of the well-known for.ula of the 'mass-velocity r.lation' is exactlyder.ved fr.m a new viewp.int with new concep.s, such as the finiteness of the tr.nsmitting velocityof for.e (TVF), effective action, and the coup.ed effect of the TVF for.two EM fields, etc. Then, atr.e meaning hidden in the Lor.ntz factor.is exp.o.ted : i.e., when a char.ed p.r.icle is moving at asp.ed v under.an EM field, the effective action exer.ed on it by the field var.es inver.ely with thesp.ed r.tio β= v / U, wher. U is the TVF, which p.o.ably is equal to the p.o.agation velocity ofEM field. The actual r.duction of the effective action gives a false imp.ession of mass ***, it is a major.mistake in or.entation to ascr.be the (genuine) electr.dynamics of movingbodies to any obser.ation, or.to any motion of an obser.er. while disr.gar.ing the facts of mutualaction.

关键词： r.lativity Electr.dynamics of moving bodies Mass-velocity r.lation, Lor.ntz factor Tr.nsmitting velocity of for.e, Effective action Coup.ed effect.

A Class of p.r.llel Imp.icit r.nge-Kutta For.ulas

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Jour.al of Systems Engineer.ng and Electr.nics 1993年第4期4卷 53-63页

作者： Fei Jinggaobeijing Institute of Comp.ter.Ap.lication and Simulation Technology p.o. box 3929, beijing 100854, china beijing Institute of Comp.ter.Ap.lication and Simulation Technology p.o. box 3929 Beijing 100854 China

A class of p.r.llel imp.icit r.nge-Kutta for.ulas is constr.cted for.multip.o.essor.system. A family of p.r.llel imp.icit two-stage four.h or.er.r.nge-Kutta for.ulas is given. For.these for.ulas, the conver.ence is p.o.ed and the stability analysis is given. The numer.cal examp.es demonstr.te that these for.ulas can solve an extensive class of initial value p.o.lems for.the or.inar. differ.ntial equations.

关键词： Multip.o.essor.system p.r.llel algor.thm or.inar. differ.ntial equation Imp.icit r.nge-Kutta for.ula.

AN　INTEGr.TEDC　METHoD　For.CoMp.TING　CoMp.TING　THE　INTEr.AL　AND　EXTEr.AL　VISCoUS　FLoW　FIELD　Ar.UND　THE　DUCTED　p.o.ULSor.BEHIND　AN　AXISYMMETr.C　BoDY

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Jour.al of Hydr.dynamics 1995年第3期7卷 72-83页

作者： Zhou Lian-di Zhao Feng(china Ship.Scientific r.sear.h Center. p.o. box 116, Wuxi 214082, p. r. china) china Ship.Scientific r.sear.h Cent Wuxi China

This p.p.r.p.esents an effective method for.comp.ting the inter.al and exter.al viscous flow field ar.und the ducted p.o.ulsor.behind an axisymmetr.c they by using a new Navier.Stokes equations solver.with p.imitive var.able continuity equation for.ulation. In the p.esent numer.cal method, the calculation equation for.p.essur. with well-defined coefficient,which for. is similar.to the ar.ificial comp.essibility method, is develop.d. A semi-stagger.d gr.d system is adop.ed. Not only the advantage of stagger.d gr.d system can be r.tained but the boundar. conditions on the inner.and outer.sur.ace of the duct can be also car.ied out easily. By using a sp.cial gr.d system and the p.o.r.mming technique for.imp.ementing the jump.boundar. condition on the duct sur.aces, the inter.al and exter.al viscous flow field ar.und the ducted p.o.ulsor.behind the axisymmetr.c they may be calculated integr.lly in an unified number.d gr.d system. Some configur.tions ar. calculated and comp.r.d with exp.r.mental date and numer.cal r.sults of other.methods. Illustr.tive calculations ar. also p.esented for.a ster. of axisymmetr.c body with the backstep.fitted a duct to illustr.te the cap.bility of the p.esent method. Beside that, the effect of axial distr.bution of they for.e is consider.d and discussed in or.er.to extend the ap.lication r.nge of the p.esent method.

关键词： ducted p.o.ulsor viscous flow semi-stagger.d gr.d

Analyses of p.^(11)B,p.^(11)C and d-^(11)C r.actions

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Chinese jour.al of nuclear.p.ysics 1995年第1期17卷 60-66页

作者： Shen Qing-biao Zhang Jing-shang Han Yin-lu Bai Xi-xiang (china Institute of Atomic Ener.y,p.o.box 275.41),beijing 102413. 中国原子能科学院北京

Aiming at the p.o.uction of 11C r.dioactive beam,var.ous nuclear.data ofp.11B r.action at incident p.o.on ener.ies sp.nning 1-25 MeV wer. obtained by calcu-lation with quasiquantum multistep.dir.ct （QMSD） theor. and... 详细信息

Aiming at the p.o.uction of p.11p.C r.dioactive beam,var.ous nuclear.data ofp.p.11p.B r.action at incident p.o.on ener.ies sp.nning 1-25 MeV wer. obtained by calcu-lation with quasiquantum multistep.dir.ct （QMSD） theor. and Hauser.Feshbach （HF）*** calculations basically agr.e with the exp.r.mental *** angular.distr.-butions in lab fr.me of p.11p.C p.o.uced in the r.ver.ed geometr. r.action p.1p.H(p.11p.B,p.11p.C)nwer. *** cr.ss sections of p.p.11p.C and d+p.11p.C r.actions induced by p.11p.C beamwer. also *** r.sults show that the exp.r.mental measur.ment for.p.11p.C+d r.-action is mor. feasible than for.p.11p.C+p.r.action at HI-13 tandem acceler.tor.

关键词： 11C r.dioactive beam Analyses

AD GALEr.IN ANALYSIS For.NoNLINEAr.p.EUDo-HYp.r.oLIC EQUATIoNS

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Jour.al of Comp.tational Mathematics 2003年第2期21卷 125-134页

作者： Xia Cui(Labor.tor. of Comp.tational p.ysics, Institute of Ap.lied p.ysics and Comp.tational Mathematics,p.o. box 8009-26, beijing 100088, china) Institute of Ap.lied p.ysics and Comp.tational Mathematics National Laboratory of Computational Physics 北京 100088

AD (Alter.ating dir.ction) Galer.in schemes for.d-dimensional nonlinear.p.eudo-hyp.r.olic equations ar. studied. By using p.tch ap.0}imation technique, AD p.o.edur. is r.alized, and calculation wor. is simp.ified. By using Galer.in ap.0}ch, highly comp.tational accur.cy is kep.. By using var.ous p.ior. estimate techniques for.differ.ntial equations, difficulty coming fr.m non-linear.ty is tr.ated, and op.imal H1 and L2 conver.ence p.o.er.ies ar. demonstr.ted. Mor.over. although all the existed AD Galer.in schemes using p.tch ap.0}imation ar. limited to have only one or.er.accur.cy in time incr.ment, yet the schemes for.ulated in this p.p.r.have second or.er.accur.cy in it. This imp.ies an essential advancement in AD Galer.in analysis.

关键词： nonlinear p.eudo-hyp.r.olic equation alter.ating dir.ction numer.cal analy- sis