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Flexur.l and Imp.ct r.sistance of Fr./Bamboo Laminate

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Jour.al of Mater.als Science & Technology 2002年第4期18卷 369-371页

作者： Wu YAOState Key Labor.tor. of Concr.te Mater.als r.sear.h, tongji university, shanghai 200092, china Lab. of Concr.te Mat. r.s. Tongji Univ. Shanghai 200092 China

The flexur.l and imp.ct r.sistance of a newly develop.d Fr./bamboo laminate have been investigated. The laminate consider.d in this study was combined with r.for.ed bamboo p.ate and extr.ded fiber.r.infor.ed cementitious (Fr.) sheet. Innovated fr.m the r.w bamboo, r.for.ed bamboo showed high tensile str.ngth and high str.ngth to weight r.tio. It can not only r.mar.ably str.ngthen the Fr. sheet but also r.duce the total weight of the laminate. Flexur.l and imp.ct load, br.ken ener.y, deflection and dur.tion wer. measur.d. Test r.sults showed that the flexur.l str.ngth value for.the laminate can be imp.oved to gr.ater.than 90 Mp., while the imp.ct r.sistance is incr.ased mor. than 10 times for.the laminate when comp.r.d with the Fr. sheet only.

关键词： Flexur.l str.ngth Imp.ct Fr./bamboo comp.site

Conjugation in r.p.esentations of the Zassenhaus Algebr.

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Acta Mathematica Sinica,English Ser.es 2001年第2期17卷 319-326页

作者： Bin SHU Institute of Ap.lied Mathematics & p.ysics. shanghai Mar.time university. shanghai 200135, p. r. china Institute of Ap.lied Mathematics & p.ysics Shanghai Maritime University Shanghai 200135 P. R. China

Let F be an algebr.cially closed field of char.cter.stic p.2, and L be the p.-dimensional Zassenhaus algebr. with the maximal invar.ant subalgebr. L0 and the standar. filtr.tion {li}|i=-1p.-2. Then the number.of isomo... 详细信息

Let F be an algebr.cially closed field of char.cter.stic p.gt;2, and L be the p.sup.np.-dimensional Zassenhaus algebr. with the maximal invar.ant subalgebr. L0 and the standar. filtr.tion {Li}|i=-1p.p.sup.np.-2p.. Then the number.of isomor.0}ism classes of simp.e L-modules is equal to that of simp.e L0-modules, cor.esp.nding to an ar.itr.r. char.cter.of L excep. when its height is biggest. As to the number.cor.esp.nding to the excep.ion ther. was an ear.ier.r.sult saying that it is not bigger.than p.sup.np..

关键词： Zassenhaus algebr.s (Car.an-typ. lie algebr.s) Simp.e modules of lie algebr.s and their.isomor.0}ism classes

Develop.ent of Ur.an p.anning Education and Its Institutionalization in china

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china.City p.anning r.view 2009年第2期18卷 66-72页

作者： ZHAO Min, professor, Ur.an p.anning Dep.r.ment, College of Ar.hitectur. and Ur.an p.anning, tongji university, shanghai, p. r. china. liN Hua, p.stgr.duate student, Ur.an p.anning Dep.r.ment, College of Ar.hitectur. and Ur.an p.anning, tongji university, shanghai, p. r. china. li caige

1. Intr.duction Cur.ently china.is under.oing r.mar.able r.for.s which dr.w wor.dwide attention, as well as the p.ocess of ur.anization and moder.ization which is of an unp.ecedent-

关键词： ur.anization moder.ization p.ofessional univer.iti

Factor.zation Index for.Comp.etely p.sitive Gr.p.s

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Acta Mathematica Sinica,English Ser.es 2002年第4期18卷 823-832页

作者： Xiao Dong ZHANG Jiong Sheng li Dep.r.ment of Mathematics, shanghai, Jiao Tong university, 1954 Huashan r.ad, shanghai 200030, p. r. china.Dep.r.ment of Mathematics, university of Science and Technology of china. Anhui 230020, p. r. china Dep.r.ment of Mathematics Shanghai Jiao Tong University 1954 Huashan road Shanghai 200030 P. R. China Dep.r.ment of Mathematics University of Science and Technology of China Anhui 230026 P. R. China

In this p.p.r. we p.ove that the set of all factor.zation indices of a comp.etely p.sitive gr.p. has no gap.. In other.wor.s, we give an affir.ative answer.to a question r.ised by N. Kogan and A. Ber.an [8] in the cas... 详细信息

关键词： Comp.etely p.sitive gr.p. Factor.zation index Gap

p.stglacial sea-level changes and develop.ent stages of fluvial-estuar.ne system

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Acta Oceanologica Sinica 1993年第4期12卷 573-584页

作者： li Congxian Dep.r.ment of Mar.ne Geology and Geop.ysics, tongji university, shanghai 200092, china Dep.. of Mar.ne Geology & Geop.ysics Tongji Univ. Shanghai 200092 China

-On the basis of the data obtained fr.m the investigations on some r.ver. in china.and Austr.lia, the author.discusses the sp.tial and temp.r.l changes of var.ous p.r.ions of fluvial-estuar.ne system dur.ng p.stglacial sea-level r.sing in p.esent coastal and deltaic ar.as. The evolution of a fluvial-estuar.ne system can be divided into four.develop.ent stages: ear.y tr.nsgr.ssion, late tr.nsgr.ssion, stationar. and r.gr.ssion. Ear.y tr.nsgr.ssion br.ught about filling-in of the p.leo-valley for.ed in low stand of sea level. In r.sp.nse to late tr.nsgr.ssion the estuar.es wer. cr.ated, dur.ng the stationar. stage the big swamp.was develop.d. The r.gr.ssion led to estuar.es to be filled with sediments and then became deltas. At the same locality the fluvial-estuar.ne system changed with time. In the tr.nsgr.ssive p.r.od the lower.r.ach of a r.ver.changed into an estuar., and then became near.hor. ar.a. In the r.gr.ssive p.r.od the near.hor. ar.a changed into an estuar. , and then became delta.

关键词： Sea-level fluvial-estuar.ne system p.stglacial p.r.od p.leo-valley p.leo-inter.luve r.tr.gr.ssive aggr.da-tion

The p.Har.onic Heat Flow with p.tential into Homogeneous Sp.ces

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Acta Mathematica Sinica,English Ser.es 2002年第1期18卷 21-26页

作者： liU Xian Gao li Sheng Hong Institute of Mathematics. Fudan university. shanghai, 200433 p. r. china.Institute of Mathematics. Zhejiang university. Hangzhou. 310027. p. r. china Institute of Mathematics Fudan University Shanghai P. R. China Institute of Mathematics Zhejiang University Hangzhou P. R. China

Abstr.ct l11 tl1is p.p.l' xte I7r.ve tl1e existellce of gIol>al wcak so1utiolls of the I)--11i1r.1loliic flow with p.telltial bett'eel1 r.t)mal1nian lnallifOlds AI an(l N fbr.ar.itr.r. iuitial data 1la\-i11g fl11ite p.-e11er.}: ill the case wI1e11 the tar.ct N is a l1on1ogeneous sp.ct. witll a left invar.ant ln(3tr.<'.

关键词： p.Har.onic heat flow Homogeneous sp.ce Existence

r.NDOM　CHAr.CTEr.STICS　OF　FLOW　FLUCTUATING　p.ESSUr.　AND　DYNAMIC　r.Sp.NSE　ON　THE　SHAFT　Sp.LLWAY

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Jour.al of Hydr.dynamics 1995年第2期7卷 28-34页

作者： Cui li(Dalian university of Technology, Dalian 116023, p. r. china. Dalian Univ of Technology Dalian China

The flow down a shaft sp.llway, connected with tunnel, r.sults in nonsymmetr.c vor.ex ar.und the axis of the shaft. The gr.ater.the nonsymmetr., the gr.ater.the p.essur. fluctuation and r.ndom vibr.tion of *** p.p.r.deals with an attemp. to deter.ine the fluctuating p.essur. char.cter.stics in the shaft. Stochastic theor. and r.ndom time ser.es ar. emp.oyed to analyse the samp.e function x(t) , its x(t) and x(t), and their.cor.elations:The moments of the sp.ctr. ar. obtained:The fluctuating p.essur. char.cter.stics ar. r.lated to the non-symmetr.c inlet vor.ex. The r.lation between the p.int p.essur. sp.ctr. and fluctuating p.essur.s on the shaft wall ar. indicated and *** p.p.r.gas fur.her.into the simulated test on the fr.med over.flow tower.and p.ts for.ar. an effective p.op.sed way. Besides the calculation in fr.quency domain, comp.tation in time domain is also ueed to analyse the same str.ctur.. The vibr.tion sour.e and the method to r.move it ar. found out.

关键词： shaft sp.llway dynamic r.sp.nse r.ndom char.cter.stics

Quater.ar. high-r.solution op.l r.cor. and its p.leop.oductivity imp.ication at ODp.Site 1143,souther. South china.Sea

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Chinese Science Bulletin 2003年第4期48卷 363-367页

作者： WANG r.jian & li Jian Labor.tor. of Mar.ne Geology, MEO, tongji university, shanghai 200092, china Labor.tor. of Mar.ne Geology MEO Tongji University Shanghai China

The cor.elation of op.l content and MAr.with oxygen isotop.c r.cor.s of benthonic for.minifer. at Site 1143, souther. South china.Sea indicates that, since about 900 ka, the incr.asing op.l content and MAr.dur.ng the inter.lacial p.r.ods is infer.ed to r.flect the higher.sur.ace p.oductivity, for.the intensified summer.monsoon dur.ng the inter.lacial p.r.ods would r.sult in the enhanced up.elling and nutr.ent sup.ly. Time-sequence sp.ctr.l analyses of oxygen isotop.c r.cor., op.l content and MAr.at inter.als of 0900 ka r.veal that the changes of sur.ace p.oductivity wer. dominantly for.ed by the var.ations of the ear.h or.ital cycles.

关键词：中国南海第四纪蛋白石含量 MAr 古生产力四膜虫沉积物氧同位素

Biosor.0}ion of Cu(Ⅱ) on extr.cellular.p.lymer. fr.m Bacillus sp.F19

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Jour.al of Envir.nmental Sciences 2008年第11期20卷 1288-1293页

作者： ZHENG Yan,FANG Xuliang,YE Zhilong,li Yahong,CAI weimin School of Envir.nmental Science and Engineer.ng,shanghai Jiao Tong university,shanghai 200240,china. School of Envir.nmental Science and Engineer.ng Shanghai Jiao Tong University Shanghai 200240 China

Biosor.0}ion can be an effective p.ocess for.the r.moval of heavy metals fr.m aqueous *** adsor.0}ion of Cu(Ⅱ) fr.m aqueous solution on the extr.cellular.p.lymer. (Ep.) fr.m Bacillus sp.(named MBFF19) with r.sp.ct to p.,incubation time,concentr.tion of initial Cu(Ⅱ),and biosor.ent dose was *** of Cu(Ⅱ) is highly p. *** maximum up.ake of Cu(Ⅱ) (89.62 mg/g) was obtained at p. *** equilibr.um was established in ap.r.ximately 10 *** cor.elation coeffcient of mor...

关键词： Bacillus sp. biosor.0}ion extr.cellular.p.lymer. isother.s