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second-or.er.consensus in networ.s of dynamic agents with communication time-delays

Jour.al of Systems Engineer.ng and Electr.nics 2010年第1期21卷 88-94页

作者： Bo Yang1,2. Huajing Fang3, and Hua Wang4 1. School of Navigation, wuhan Univer.ity of Technology, wuhan 430063,{2. 2. wuhan second ship design and research institute, wuhan 43.064,{2. 3. Dep.r.ment of Contr.l Science and Engineer.ng, Huazhong Univer.ity of Science and Technology, wuhan 430074,{2. 4. Dep.r.ment of Aer.sp.ce and Mechanical Engineer.ng, Boston Univer.ity, Boston MA02.15, USA School of Navigation Wuhan University of Technology Wuhan 430063 P. R. China wuhan second {2. design and research institute Wuhan 430064 P. R. China Dep.r.ment of Contr.l Science and Engineer.ng Huazhong University of Science and Technology Wuhan 430074 P. R. China Dep.r.ment of Aer.sp.ce and Mechanical Engineer.ng Boston University Boston MA02215 USA

This p.p.r.p.op.ses second-or.er.consensus p.otocols with time-delays and gives the measur. of the r.bustness of the p.otocols to the time-delay existing in the networ. of agents with second-or.er.dynamics. By emp.oying a fr.quency domain method, it is p.oven that the infor.ation states and their.time der.vatives of all the agents in the networ. achieve consensus asymp.otically, r.sp.ctively, for.ap.r.p.iate communication timedelay if the top.logy of weighted networ. is connected. p.r.icular.y, a tight up.er.bound on the communication time-delay that can be toler.ted in the dynamic networ. is found. The consensus p.otocols ar. distr.buted in the sense that each agent only needs infor.ation fr.m its neighbor.ng agents, which r.duces the comp.exity of connections between neighbor.ng agents significantly. Numer.cal simulation r.sults ar. p.ovided to demonstr.te the effectiveness and the shar.0}ess of the theor.tical r.sults for.second-or.er.consensus in networ.s in the p.esence of communication time-delays.

关键词： second-or.er.consensus p.otocols dynamic networ.s algebr.ic gr.p. theor. fr.quency domain analysis com-munication constr.ints.

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research ON STABILITY OF Op.N BOTTOM STOr.GE p.ATFOr.

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Jour.al of Hydr.dynamics 1999年第2期11卷 14-19页

作者： Qi Xin-yuan Jin Chen-yi Chen Wei-qi Chen Juan-fang(china ship Scientific {2. Center. Wuxi 2.4082. p. r. china) china ship Scientific {2. Cent Wuxi China

In this p.p.r. we p.esent a new typ. of offshor. str.ctur., op.n bottomstor.ge p.atfor., and its theor.tical and exp.r.mental studies of its stability. In or.er.toop.imize the design of column length and stor.ge tank of the op.n bottom stor.ge p.atfor., we discuss the effect of air.chamber.length and stor.ge on the stability of op.n bottom stor.ge p.atfor..

关键词： ocean engineer.ng op.n bottom stor.ge p.atfor. stability

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多层屏蔽电缆耦合影响的数值预测

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水电能源科学 2011年第6期29卷 177-179,174页

作者：阎毓杰许荣彧刘钢武汉第二船舶设计研究所湖北武汉430064

针对工程中的电缆耦合问题,采用多导体传输线方法。构建了多层屏蔽电缆电磁耦合的等效电路模型,分析了相关的感性耦合和容性耦合影响效果,并对某屏蔽电缆受邻近电缆耦合引起的串扰电压的幅频响应进行了仿真。结果表明,采取双层屏蔽较单... 详细信息

针对工程中的电缆耦合问题,采用多导体传输线方法。构建了多层屏蔽电缆电磁耦合的等效电路模型,分析了相关的感性耦合和容性耦合影响效果,并对某屏蔽电缆受邻近电缆耦合引起的串扰电压的幅频响应进行了仿真。结果表明,采取双层屏蔽较单层屏蔽能较大程度地减小耦合干扰。

关键词：电磁兼容电缆多层屏蔽耦合预测

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p.otective effect of r.loxifene on lip.p.lysacchar.de and acid-induced acute lung injur. in r.ts

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Acta p.ar.acologica Sinica 2007年第10期28卷 1585-1590页

作者： Guang-ju ZHOU~1,Hong ZHANG~2.Sheng-de ZHI~3,Guo-p.ng JIANG~1,Jing WANG~2.Mao ZHANG~1,Jian-xin GAN~1,Shao-wenXU~1,Guan-yu JIANG~(1,4)~1 Dep.r.ment of Emer.ency Medicine,second Affiliated Hosp.tal,Zhejiang Univer.ity,School of Medicine and research {2. of Emer.gency Medicine,Hangzhou 310009,china ~2.Dep.r.ment of Nuclear.Medicine,second Affiliated Hosp.tal,Zhejiang Univer.ity,Hangzhou310009,china ~3 Dr.g design and Discover. Center.Shanghai {2. of Mater.a Medica,Shanghai {2. for.Biological Sciences,Chinese Academy of Sciences,Shanghai 2.12.3,china Dep.r.ment of Emer.ency Medicine Second Affiliated Hospital Zhejiang University School of Medicine and Research Institute of Emergency Medicine Hangzhou China Dep.r.ment of Nuclear.Medicine Second Affiliated Hospital Zhejiang University Hangzhou China Dr.g design and Discover. Center Shanghai Institute of Materia Medica Shanghai Institute for Biological Sciences Chinese Academy of Sciences Shanghai China

Aim:To evaluate the p.otective effect of or.l r.loxifene on acute lung ***:Thir.y adult,male Sp.ague-Dawley r.ts each weighing 180-2.0 g wer.used and divided into 3 gr.up.:the r.loxifene-lip.p.lysacchar.de （Lp.）-HCl gr.up.n=10）,the Lp.-r.loxifene-HCl gr.up.（n=10）,and the p.acebo gr.up.（n=10）.Allthe r.ts wer. injected intr.p.r.toneally （ip. with 5 mg/kg Lp.,and r.loxifene （30mg/kg） was or.lly administer.d 1 h befor. and 14 h after.Lp. injection into ther.loxifene-Lp.-HCl and the Lp.-r.loxifene-HCl gr.up.,r.sp.ctively;the p.acebogr.up.r.ceived *** hour. after.Lp. injection,all the animals wer.anesthetized and the femor.l ar.er. was *** the r.ts r.ceived a dir.ctintr.tr.cheal （IT） injection of HCl（p. 1.2.0.5 mL/kg）.The mean ar.er.al p.essur.（MAp. and blood gas concentr.tions wer. *** r.ts （5 in eachgr.up.r.sp.ctively） under.ent a micr. p.sitr.n emission tomogr.p.y （micr.p.T）scan of the thor.x 4 h after.HCl *** wet/dr. （W/D） weight r.tiodeter.ination and histop.thological examination wer. also ***:The r.ts in the Lp.-r.loxifene-HCl gr.up.had a lower.[18F]fluor.deoxyglucoseup.ake comp.r.d with the r.ts in the p.acebo gr.up.（4.67±1.33 vs 9.01±1.58,r.sp.ctively,p.0.01）.The r.ts in the Lp.-r.loxifene-HCl gr.up.also had a lower.istological lung injur. scor. （8.2.±1.2. vs 12.6±0.97,r.sp.ctively,p.0.01） andW/D weight r.tio （5.335±0.198 vs 5.886±0.2.7,r.sp.ctively,p.0.01） comp.r.d tothe p.acebo *** r.ts in this gr.up.also showed better.p.lmonar. gasexchange and mor. stable mean ar.er.al p.essur. （MAp. comp.r.d to the ***:r.loxifene p.ovides a significant p.otective effect on acutelung injur. in r.ts induced fir.t by Lp. ip.injection and then by HCl IT instillation.

关键词： acute lung injur. asp.r.tion fluor.deoxyglucose lip.p.lysacchar.de micr.p.T p.lmonar. edema r.loxifene

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开关电源的射频传导发射分析及预测

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水电能源科学 2010年第5期28卷 153-155页

作者：阎毓杰樊友文杨华荣武汉第二船舶设计研究所湖北武汉430064

针对工程中电网的射频传导干扰现象,研究了开关类设备的射频传导发射及其干扰抑制,分析了开关电源的射频传导干扰成因,并建立了射频传导发射数学模型以计算流回到电源线上的射频传导干扰。在此基础上,通过使用软件适当设计滤波器以仿真... 详细信息

针对工程中电网的射频传导干扰现象,研究了开关类设备的射频传导发射及其干扰抑制,分析了开关电源的射频传导干扰成因,并建立了射频传导发射数学模型以计算流回到电源线上的射频传导干扰。在此基础上,通过使用软件适当设计滤波器以仿真射频传导干扰的抑制效果,实现了对开关电源射频传导发射及其干扰影响的数值预测。

关键词：开关电源电磁兼容传导干扰射频传导发射预测

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r.CENT researchES ON THE r.Sp.NSES OF shipS AT SEAS IN {2.

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Jour.al of Hydr.dynamics 1989年第1期1卷 39-51页

作者： FANG WEN JUN, china ship Scientific {2. Center. Wuxi, p.r. china

In china, the research wor.s on the seakeep.ng of {2.s wer. star.ed at the middle of 50's. At that time the {2. models wer. gener.lly tested in head or.following waves in towing tanks. After.ar.s, based on the theor. of linear.sup.r.2}- sition and str.p.ing method, the simp.e {2. motions wer. p.edicted theor.tically. Dur.ng the beginning of 70's, a 69×46×4m^3 seakeep.ng tank with a lar.e movable br.dge on it had been comp.eted in the china {2. Scientific research Center. Wuxi, then models could be tested in r.gular.and ir.egular.long cr.sted. waves along any dir.ctions, thus r.alistic sea waves wer. simulated. In or.er.to meet the demand of the oil-dr.lling beneath the sea bed, and to match the design wor.s of dr.lling p.atfor.s, a lar.e amount of research wor.s on the wave for.es acting on differ.nt kinds of p.les wer. star.ed. In this p.p.r. the research wor.s of r.cent ten year. on the op.imum seakeep.ng {2. for.s, r.ll and anti-r.lling system, {2. stability, waves and wave for.es acting on {2. and offshor. str.ctur.s ar. br.efly r.viewed. The r.fer.nces cited ar. limited to the p.p.r. p.blished in the {2.building of china, Advances in Hydr.dynamics and some p.oceedings of inter.ational confer. ences.

关键词： Wave r.CENT researchES ON THE r.Sp.NSES OF shipS AT SEAS IN {2. AT

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保密在线学习考试系统的设计与实现

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信息安全与通信保密 2011年第8期9卷 64-66页

作者：刘丹武汉第二船舶设计研究所湖北武汉430064

武器装备科研生产单位保密资格认证要求随机抽取涉密人员进行保密知识测试,为保证顺利取得资格认证,必须通过一种有效手段开展保密知识的学习和考试。在分析了军工企事业单位保密知识考试的问题和弊端上,提出了一种基于B/S模式的在线学... 详细信息

武器装备科研生产单位保密资格认证要求随机抽取涉密人员进行保密知识测试,为保证顺利取得资格认证,必须通过一种有效手段开展保密知识的学习和考试。在分析了军工企事业单位保密知识考试的问题和弊端上,提出了一种基于B/S模式的在线学习考试系统解决方案,并进行了详细的系统需求分析、功能模块及数据库设计,同时对系统相关的关键技术进行分析。保密在线学习考试系统的实现,提高了涉密人员保密知识的学习效率,改进了保密工作机构的保密管理方法。

关键词：保密在线考试 B/S

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NUMEr.CAL　SIMULATION　OF　THE　EFFECT　OF　FILLET　FOr.S　ON　Ap.ENDAGE－BODY　JUNCTION　FLOW

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Jour.al of Hydr.dynamics 1994年第4期6卷 60-73页

作者： Li Ding Zhou Lian-di (china ship Scientific {2. Center.p. O. Box 116, Wuxi Jiangsu 2.4082. p. r. china)

The p.ssibility of using a fillet for. to contr.l the hor.eshoe vor.ex flow caused by the tur.ulent shear.flow ar.und wing-body junction has been investigated numer.cally. A numer.cal method for.the solution of thr.e dimensional incomp.essible, r.ynolds-aver.ged Navier.Stokes equations with the two-equation (k, ε) tur.ulence model has been develop.d to evaluate the effect of fillet for.s on ap.endage-body junction vor.ex flow. The wing investigated is NACA002.. The r.ynolds number.based on a chor.length is 1. 0 ×105. Thr.e configur.tions including a baseline, a tr.angle fillet for., and a constant r.dius convex ar. fillet for. along the entir. wing/flat-p.ate junction ar. p.esented. It is shown that a suitable convex filet for. can significantly imp.ove the stability of junction hor.eshoe vor.ex and r.duce the str.ngth of vor.ex and the non-unifor.ity in the wake velocity p.ofile. It is also demonstr.ted the cap.bility of the numer.cal ap.r.ach in the design of vor.ex flow contr.l devices.

关键词： fillet for. junction flow hor.eshoe vor.ex numer.cal simulation.

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Ener.y efficiency design index evaluation and design suggestion for.r.ver.to-sea shi

Energy efficiency design index evaluation and design suggest...

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2.10 The 3r. Inter.ational Confer.nce on p.wer.Electr.nics and Intelligent Tr.nsp.r.ation System (p.ITS 2.10)

作者： Wu Junjun and Chen shunhuai School of Tr.nsp.r.ation wuhan Univer.ity of Technology wuhan 430063,p. r.{2. Wu Chunfang Dep.r.ment of ship engineer.ng wuhan institute of shipbuilding technology wuhan 430050,p. r.{2.

CO2.emission and ener.y efficiency becomes the focus in mar.time sector.nowadays,they ar. connecting with each other.closely at the same *** MEp. have p.blished Inter.m guidelines on the method of calculation of the ener.y efficiency design index (EEDI) for.new ships on IMO MEp. *** p.p.r.have intr.duce the signification of EEDI calculation for.ula and its evolution,make an EEDI evaluation for.Chinese r.ver.to-sea ship by calculating,analysis two main design elements effect on EEDI value by comp.r.ng,thus advise ship designer. to be caution.

关键词： EEDI Baseline CO2.emission r.ver.to-sea ship

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A NUMEr.CAL METHOD FOr.second Or.Er.MEAN FOr.ES AND SLOWLY VAr.ING FOr.ES ON A FLOATING STr.CTUr.

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Jour.al of Hydr.dynamics 1989年第4期1卷 27-45页

作者： Sun Be-qi Gu Mao-xiang china ship Scientific {2. Center.Wuxi,p.r.china

Existing far.field exp.essions of second or.er.p.tentials ar. by no means *** ther. has been no exact far.field exp.ession of second or.er.*** this p.p.r.the far.field exp.ession for.Φ_d^((2.) is p.r.0}sely avoided in deducing the for.ulae of second or.er.for.es and a ser.es of functions Φ_(dr.)^((?)) ar. *** far.field exp.ession of is given,which for.(x,U,z)∈Σ,φ_(dr.)^((2.)(?) φ_d^((2.).Using these p.op.r.ies for.ulae for.calculating second or.er.diffr.ction for.es ar. *** calculate the integr.l ∫∫_(?)1/g f_(?)Ψ_(?)ds it is divided into two *** is the integr.l over.a finite domain and the function under.the integr.l is continuous,so the usual ap.r.ximate integr.tion for.ulae may be used. The other.is the integr.l over.an infinite *** the far.field exp.ession of fir.t or.er.p.tentials,for.ulae for.calculating the integr.l to meet given accur.cies ar. given. The moor.ng for.e in sur.e dir.ction is used for.comp.r.son between numer.cal p.edictions and exp.r.mental *** p.edicted r.sults ar. checked against the measur.d value in a sp.cially designed *** the low fr.quency domain of inter.st,the moor.ng for.es in sur.e,for.calculated and exp.r.mental sp.ctr. ar. in good consistency so long as the damp.ng coefficients is choosen ap.r.p.iately.

关键词： A NUMEr.CAL METHOD FOr.second Or.Er.MEAN FOr.ES AND SLOWLY VAr.ING FOr.ES ON A FLOATING STr.CTUr. body mode

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