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Op.imization of Additively Decomp.sed Function with Constr.ints

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Jour.al of Systems Engineer.ng and Electr.nics 2002年第4期13卷 85-90页

作者： r.n Qingsheng, Zeng Jin & Qi Feihu(Dep.. of Comp.ter.science and Engineer.ng, Shanghai Jiaotong univ.r.ity, Shanghai 20003., p. r. china Dep.. of Ap.lied Mathematics, Shanghai Jiaotong univ.r.ity, Shanghai 20003., p. r. china) Dep.. of Comp.ter.science and Engineer.ng Shanghai Jiaotong University Shanghai 200030 P. R. China Dep.. of Ap.lied Mathematics Shanghai Jiaotong University Shanghai 200030 P. R. China

We p.op.se a modified evolutionar. comp.tation method to solve the op.imization p.oblem of additively decomp.sed function with constr.ints. It is based on factor.zed distr.bution instead of p.nalty function and any tr.nsfor.ation to a linear.model or.other.. The feasibility and conver.ence of the new algor.thm ar. given. The numer.cal r.sults show that the new algor.thm gives a satisfactor. p.r.or.ance.

关键词： Calculations Conver.ence of numer.cal methods Op.imization p.r.or.ance

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导弹发射管内燃气流场的实验分析

推进技术 2001年第5期22卷 361-363页

作者：徐强廖光煊李军中国科学技术大学火灾科学国家重点实验室安徽合肥230026 南京理工大学机械学院江苏南京210094

针对密封盖未及时开启造成发射装置的损坏问题进行了实验分析。实验测量了对发射管壁静压和密封盖受到的燃气射流冲击压力 ,利用子波分析方法求取了实验数据的基于子波系数的频带能量谱 ,并对含有射流噪声的测量数据进行了子波滤波 ,得... 详细信息

针对密封盖未及时开启造成发射装置的损坏问题进行了实验分析。实验测量了对发射管壁静压和密封盖受到的燃气射流冲击压力 ,利用子波分析方法求取了实验数据的基于子波系数的频带能量谱 ,并对含有射流噪声的测量数据进行了子波滤波 ,得到了各点压力低频成分的变化情况 ,同时得到了密封盖所受冲击冲量与激波振荡幅值的关系。研究表明密封盖不及时开启会在弹管间隙中形成高幅值的起始冲击波和燃气回流激波振荡。这种破坏性的流动结构会导致发射装置的损坏。

关键词：导弹发射管喷管气流流动分布子波分析冲击波激波振荡

A Java-Based Ap.r.ach for.Develop.ng Web Ap.lication System

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Jour.al of Systems Engineer.ng and Electr.nics 1999年第3期10卷 15-21页

作者： Li Chunlin(Dep.. of Comp.ter.science and Engineer.ng, Wuhan Tr.nsp.r.ation univ.r.ity, 43.063. p. r. china )(r.ceived) Dep.. of Comp.ter.science and Engineer.ng Wuhan Transportation University 430063 P. R. China

This p.p.r.adop.s ser.er.side Java p.ogr.mming model: mod e 1- view-cont r.ller.to constr.ct welybased shop.ing system fr.mewor.. Using ser.lets, Java ser.er.p.ges (JSp.) and JavaBeantechnologies, we p.ovide a standar., op.n, r.bust and cr.ss-p.atfor. ar.hitectur.. It can guar.ntee system- indep.ndence. p.esented fr.mewor. p.ovides a clean sep.r.tion of p.esentation fr.m business logic which meets user.s taste by changing user.inter.ace fr.quenctly, and enables mor. functions to be conventiently added in futur..

关键词： Web ap.lication system Java Electr.nic shop.ing system

Effect of p.lymer.zation Condition on p.r.icle Size Distr.bution in St/BA/MAA Emulsion p.lymer.zation p.ocess

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Chemical r.sear.h in Chinese univ.r.ities 2000年第1期16卷 67-71页

作者： TAN Bi-en (Mater.al science and Engineer.ng coll.ge, South china {3.r.ity of Technology, Guanzhou 510641, p. r. china) ZHANG Hong-tao LI Jian-zong and HU Fang (Dep.r.ment of Chemistr., Hubei {3.r.ity, Wuhan 43.062, p. r. china) S china univ.Technol Mat Sci & Engn Coll Guangzhou 510641 Peoples R China Hubei univ Dept Chem Wuhan 430062 Peoples R China

A ser.es of St/BA/MAA emulsion p.lymer.zations was car.ied out. By using p.S (p.oton cor.elation sp.ctr.scop.), the p.r.icle size distr.bution (p.D) of the whole St/BA/MAA emulsion p.lymer.zation p.ocess was gotten e... 详细信息

关键词： Emulsion p.lymer.zation p.r.icle size Latex p.r.icle size distr.bution

Study of OCDs r.liability Estimation System Based on Bio-Immunology

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Jour.al of Bionic Engineer.ng 2009年第3期6卷 306-310页

作者： Dan-e Wu~1 Qiu-zhan Zhou~1 p.ng-p.ng Liu~2 He-bin Zhang1.coll.ge of Communication Engineer.ng,jilin univ.r.ity,Changehun 13.022,p.r.{3.2.Dep.r.ment of Comp.ter.science and Technology,jilin univ.r.ity,Changchun 13.012,p.r.{3. [a]coll.ge of Communication Engineer.ng Jilin University Changchun 130022 P. R. China [b]Department of Computer Science and Technology Jilin University Changchun 130012 P. R. China

We intr.duce the r.lationship.between excess noise in Op.oelectr.nic Coup.ed Devices (OCDs) and their.inter.or.defects and exp.ain how low-fiequency noise can be used to estimate their.*** concep.s fr.m the biological immune system and its p.ocess of identifying invader.,we p.esent a system for.estimation of the r.liability of *** system has exp.essions for.the antigen (excess noise),lymp.ocyte (cr.ter.on) and the r.le of the lymp.ocyte eliminating unr.liable devices. A genetic algor.thm was used to estimate the comp.nents p.r.meter. of the noise sp.ctr.m for.estimating the r.liability of *** exp.r.mental r.sults demonstr.ted that this method is r.liable,adap.able and p.actical.

关键词： low-fr.quency noise ar.ificial immunity genetic algonthm device r.liability

Finite Tr.velling Waves for.a Semilinear.Degener.te r.action-Diffusion System

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Acta Mathematica Sinica,English Ser.es 2001年第4期17卷 603-612页

作者： Shu WANG Cheng Fu WANG Dang LUO Dep.r.ment of Mathematics, Henan univ.r.ity, Kaifeng 475001, p. r. china Institute of Mathematics, Academy of Mathematics and System sciences Chinese Academy of sciences, Beijing 100080, p. r. china Dep.r.ment of Mathematics, Suzhou univ.r.ity, Suzhou 215006, p. r. china Dep.r.ment of Basic science, Nor.h china Institute of Water.Conser.ancy and Hydr.electr.c p.wer. Zhengzhou 450045, p. r. china Dep.r.ment of Mathematics Henan University Kaifeng 475001 P. R. China Institute of Mathematics Academy of Mathematics and System Sciences Chinese Academy of Sciences Beijing 100080 P. R. China Dep.r.ment of Mathematics Suzhou University Suzhou 215006 P. R. China Dep.r.ment of Basic science North China Institute of Water Conservancy and Hydroelectric Power Zhengzhou 450045 P. R. China

In this p.p.r. the existence and nonexistence of finite tr.velling waves （FTWs） for.a semilinear.degener.te r.action-diffusion system (uiαit=uixx-multip.y fr.m j=1 to N ujmij, x∈r. t>0,i=1,. . . ,N （Ⅰ） is stud... 详细信息

In this p.p.r. the existence and nonexistence of finite tr.velling waves （FTWs） for.a semilinear.degener.te r.action-diffusion system (uip.αip.t=uixx-multip.y fr.m j=1 to N ujp.mijp., x∈r. t>0,i=1,. . . ,N （Ⅰ） is studied. wher. 0ir.m j=1 to N mij>0, i, j=1, . . . ,N .Necessar. and sufficient conditions on existence and lar.e time behaviour. of FTWs of （Ⅰ） ar. obtained by using the matr.x theor.. Schauder.s fixed p.int theor.m, and up.er.and lower.solutious method.

关键词： Finite tr.veling waves Degener.te r.action-diffusion system Global solution Blow up

腕足动物支撑的关山生物群层状底栖群落揭示寒武纪早期生态系统复杂性

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地球科学 2024年第6期49卷 2277-2295页

作者：陈飞扬张志飞 Top.er.Timothy p. 刘茜中国矿业大学煤层气资源与成藏过程教育部重点实验室江苏徐州221008 中国矿业大学资源与地球科学学院江苏徐州221116 西北大学地质学系大陆动力学国家重点实验室陕西省早期生命与环境重点实验室陕西西安710069 瑞典自然历史博物馆瑞典斯德哥尔摩SE-104055 西北大学博物馆陕西西安710069

关山生物群产自滇东地区寒武系第4阶,是一个由多门类后生动物化石组成的原位埋藏的布尔吉斯页岩型化石库,该生物群在数量上以腕足动物主导,它们大量出现并密集成层,特色鲜明.综述了近年来关山生物群的最新研究进展,包括群落构成、腕足... 详细信息

关山生物群产自滇东地区寒武系第4阶,是一个由多门类后生动物化石组成的原位埋藏的布尔吉斯页岩型化石库,该生物群在数量上以腕足动物主导,它们大量出现并密集成层,特色鲜明.综述了近年来关山生物群的最新研究进展,包括群落构成、腕足动物多样性与壳体密集层,并着重介绍了其中与腕足动物相关的古生态学研究进展,揭示了一类独特的、由腕足动物支撑的层状底栖群落,表明寒武纪早期海洋底栖生态系统已形成较好的垂直分层现象,并存在复杂生态关系.来自澄江、马龙、关山生物群的化石数据揭示,滇东地区寒武纪第二世发生了一次重要的属种转变与群落演替事件,并且于寒武纪第4期,腕足动物首次在数量上超越节肢动物成为优势类群.原位埋藏、腕足动物主导、生态系统复杂等特点使关山生物群成为探索寒武纪大爆发的独特窗口,未来持续的古生态学研究将对理解和恢复早期海洋生态系统的建立与演化过程具有重要意义.同时,开展该时期古环境的纵向演变研究,探索影响群落演替的关键控制因素,将对寒武系第二统全球地层对比工作提供重要参考.

关键词：关山生物群腕足动物底栖群落演替生态系统复杂性寒武纪第4期滇东地区生态学

Effect of p.ep.r.tion Methods on Mechanical p.op.r.ies of p.A/HA Comp.site Hydr.gel

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Jour.al of Bionic Engineer.ng 2010年第3期7卷 235-243页

作者： Dekun Zhang~1, Junjie Duan~1, Dagang Wang~2, Shir.ng Ge~2 1. School of Mater.als science and Engineer.ng, china univ.r.ity of Mining and Technology Xuzhou 221116,{3. 2. School of Mechanical and Electr.cal Engineer.ng, china univ.r.ity of Mining and Technology, Xuzhou 221116,{3. [a] School of Mater.als science Engineer.ng China University of Mining Technology Xuzhou 221116 P. R. China [b] School of Mechanical Electr.cal Engineer.ng China University of Mining Technology Xuzhou 221116 P. R. China

p.ly(vinyl alcohol) (p.A)/hydr.xyap.tite (HA) comp.site hydr.gel sp.cimens wer. p.ep.r.d with 15% p.A and 1%,2%, 3., 4% and 5% HA by r.p.ated fr.ezing-thawing. The tests of static and dynamic mechanical p.op.r.ies wer. car.ied out todiscuss the influence of differ.nt contents of HA and fr.ezing-thawing cycles on the mechanical p.op.r.ies of p.A/HA comp.sitehydr.gel. The r.sults of static mechanical tests showed that the p.A/HA comp.site hydr.gel with 3. HA and ninefr.ezing-thawing cycles had excellent str.ss r.laxation p.op.r.ies, higher.r.laxation r.tio, lower.str.ss equilibr.um value andp.esented better.p.op.r.ies of cr.ep.and r.cover.. The r.sults of dynamic mechanical test showed that the p.A/HA comp.sitehydr.gel with nine fr.ezing-thawing cycles had higher.stor.ge modulus and loss modulus, so was the p.A/HA comp.sitehydr.gel with 3. HA.

关键词： comp.site hydr.gel HA contents fr.ezing-thawing cycles static p.op.r.ies dynamic p.op.r.ies

Fuzzy Entr.p. Based Combined Lear.ing Algor.thm for.Neur.l Networ.s

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Jour.al of Systems Engineer.ng and Electr.nics 1996年第1期7卷 15-22页

作者： Min Yao (Dep.. of Comp.ter.science, Hangzhou univ.r.ity, Hangzhou 3.0028,p. r. china ) Dep.. of Comp.ter.science Hangzhou University Hangzhou 310028 P. R. China

Lear.ing is one of key p.oblems of ar.ificial neur.l networ.s. In this p.p.r. we p.esent a kind of combined lear.ing algor.thm based on fuzzy entr.p. cr.ter.on for.neur.l networ.s. The basic idea is to simulate the lear.ing mechanism of human br.in and over.ome the limitations of monocr.fster.on lear.ing. The comp.r.son is made between the given lear.ing algor.thm and the typ.cal Bp.algor.thm in or.er.to show the char.cter.stics of the new algor.thm.

关键词： Ar.ificial neur.l networ.s Combined lear.ing Fuzzy entr.p. cr.ter.on.