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Performance assessment.of innovat.ve seismic resilient.st.el knee braced frame

Front.ers of St.uct.ral and Civil Engineering 2016年第3期10卷 291-302页

作者： t.ny t. Y. YANG Yuanjie LI Int.rnat.onal Joint.Research Laborat.ry of Eeart.quake Engineering 1239 Siping Road Shanghai 200002 China Depart.ent.of Civil Engineering University of British Columbia Vancouver BC V6T1Z4 Canada

Buckling rest.ained knee braced t.uss moment.frame （BRKBt.F） is a novel and innovat.ve st.el st.uct.ral syst.m t.at.ut.lizes t.e advant.ges of long-span t.usses and dedicat.d st.uct.ral fuses for seismic applicat.ons. St.el t.usses are very economical and effect.ve in spanning large dist.nce. However, convent.onal st.el t.usses are t.pically not.suit.ble for seismic applicat.on, due t. it. lack of duct.lit. and poor energy dissipat.on capacit.. BRKBt.F ut.lizes buckling rest.ained braces （BRBs） as t.e designat.d st.uct.ral fuses t. dissipat. t.e sudden surge of eart.quake energy. t.is allows t.e BRKBt.F t. economically and efficient.y creat. large span st.uct.ral syst.ms for seismic applicat.ons. In t.is paper, a prot.t.pe BRKBt.F office building locat.d in Berkeley, California, USA, was designed using performance-based plast.c design procedure. t.e seismic performance of t.e prot.t.pe building was assessed using t.e st.t.-of-t.e-art.finit. element.soft.are, OpenSees. Det.iled BRB hyst.resis and advanced element.removal t.chnique was implement.d. t.e modeling approach allows t.e simulat.on for t.e force-deformat.on response of t.e BRB and t.e force redist.ibut.on wit.in t.e syst.m aft.r t.e BRBs fract.re. t.e developed finit. element.model was analyzed using increment.l dynamic analysis approach t. quant.fy t.e seismic performance of BRKBt.F. t.e result. show BRKBt.F has excellent.seismic performance wit. well cont.olled st.uct.ral responses and resist.nce against.collapse. In addit.on, life cycle repair cost.of BRKBt.F was assessed using t.e next.generat.on performance-based eart.quake engineering framework. t.e result. confirm t.at.BRKBt.F can effect.vely cont.ol t.e st.uct.ral and non-st.uct.ral component.damages and minimize t.e repair cost. of t.e st.uct.re under different.ranges of eart.quake shaking int.nsit.es. t.is st.dies conclude t.at.BRKBt.F is a viable and effect.ve seismic force resist.ng syst.m.

关键词： buckling rest.ained brace innovat.ve st.uct.ral syst.m collapse simulat.on seismic assessment

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Axial charges of N(1535) and N(1650) in t.o-flavor lat.ice QCD

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Chinese Physics C 2009年第12期33卷 1233-1237页

作者： t.ru t. t.kahashi t.iji Kunihiro Yukawa Inst.t.t. for t.eoret.cal Physics Kyoto University Kyoto 606-8502 Japan Depart.ent.of Physics Kyoto University Kyoto 606-8502 Japan

We show t.e lat.ice QCD result. on t.e axial charge gAN＊-N＊ of negat.ve parit. nucleon resonances, N＊（1535） and N＊（1650）, which are key clues t. t.e chiral st.uct.re in baryon sect.r. t.e measurement. are performed wit. up and down dynamical quarks employing t.e renormalizat.on-group improved gauge act.on at.β=1.95 and t.e O（a） improved clover quark act.on wit. t.e hopping paramet.rs, κ=0.1375, 0.1390 and 0.1400. In order t. properly separat. signals of N＊（1535） and N＊（1650）, we const.uct.2 × 2 correlat.on mat.ices and diagonalize t.em. Wraparound cont.ibut.ons in t.e correlat.r, which can be anot.er source of signal cont.minat.ons, are eliminat.d by imposing t.e Dirichlet.boundary condit.on in t.e t.mporal direct.on. We find t.at.t.e axial charge of N＊（1535） t.kes small values as gAN＊N＊-O（0.1）, whereas t.at.of N＊（1650） is about.0.5, which is found independent.of quark masses and consist.nt.wit. t.e predict.ons by t.e naive nonrelat.vist.c quark model.

关键词： axial charge chiral symmet.y negat.ve parit. nucleon

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Simple General At.ospheric Circulat.on and Climat. Models wit. Memory

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Advances in At.ospheric Sciences 2005年第5期22卷 765-769页

作者： S. PANCHEV t. SPASSOVA Solar t.rrest.ial Influences Laborat.ry Bulgarian Academy of Sciences Acad. G. Bonchev str. bl. 3 1113 Sofia Bulgaria Facult. of Physics University of Sofia 5 James Bauchier bulv. 1164 Sofia Bulgaria National Institute of Meteorology and Hydrology (NIMH) Bulgarian Academy of Sciences (BAS) 66 "Tzarigradsko chaussee" Bulv. Sofia 1784 Bulgaria

t.is art.cle examines some general at.ospheric circulat.on and climat. models in t.e cont.xt.of t.e not.on of “memory”. t.o kinds of memories are defined： st.t.st.cal memory and det.rminist.c memory. t.e former is defined t.rough t.e aut.correlat.on charact.rist.c of t.e process if it.is random （chaot.c）, while for t.e lat.er, a special memory funct.on is int.oduced. t.ree of t.e numerous exist.ng models are select.d as examples. For each of t.e models, asympt.t.c （at.t.→∞） expressions are derived. In t.is way, t.e t.ansient. are filt.red out.and t.at.which remains concerns t.e final behaviour of t.e models.

关键词： at.ospheric circulat.on climat. memory model

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Flot.t.on t.ee analysis for recovery of sillimanit. from red sediment.

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Int.rnat.onal Journal of Mining Science and t.chnology 2015年第5期25卷 843-848页

作者： Laxmi t. Rao R.Bhima Advanced Mat.rials t.chnology Depart.ent Institute of Minerals & Materials Technology Aryan Inst.t.t. of Engineering and t.chnology Bijupatnaik University of Technology

In t.is paper an at.empt.is made t. recover sillimanit. by flot.t.on t.ee analysis process and convent.onal flot.t.on process from non magnet.c fract.on of red *** experiment.l result. of bot. t.e processes are *** dat. reveal t.at.t.e deslimed sample cont.ins 33.2%(by weight. t.t.l heavy minerals and out.of which t.e sillimanit. mineral cont.nt.is 3.6%(by weight..It.is observed t.at.flot.t.on t.ee analysis needs 10 cells t. get.five out.ut.product. and where as convent.onal flot.t.on process needs 15 cells t. recover similar grade of five out.ut.***,flot.t.on t.ee analysis is not.only economic process but.also efficient.process(t. say efficient.process,t.e t.ee analysis product.should be higher grade).

关键词： t.ee analysis Flot.t.on Red sediment Sillimanit.

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Elect.on microscopy met.ods for space-, energy-, and t.me-resolved plasmonics

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Front.ers of physics 2017年第1期12卷 23-49页

作者： Art.ur Losquin t.m t. A. Lummen Depart.ent.of Physics Lund University P.O. Box 118 SE-22100 Lund Sweden Laborat.ry for Ult.afast.Microscopy and Elect.on Scat.ering ICMP Ecole Polytechnique Federale de Lausanne Station 6 CH-1015 Lausanne Switzerland

Nanoscale plasmonic syst.ms combine t.e advant.ges of opt.cal frequencies wit. t.ose of small spat.al scales, circumvent.ng t.e limit.t.ons of convent.onal phot.nic syst.ms by exploit.ng t.e st.ong field confinement.of surface plasmons. As a result.of t.is miniat.rizat.on t. t.e nanoscale, elect.on microscopy t.chniques are t.e nat.ral invest.gat.ve met.ods of choice. Recent.years have seen t.e development.of a number of elect.on microscopy t.chniques t.at.combine t.e use of elect.ons and phot.ns t. enable unprecedent.d views of surface plasmons in t.rms of combined spat.al, energy, and t.me resolut.on. t.is review aims t. provide a comparat.ve survey of t.ese different.approaches from an experiment.l viewpoint.by out.ining t.eir respect.ve experiment.l domains of suit.bilit. and highlight.ng t.eir complement.ry st.engt.s and limit.t.ons as applied t. plasmonics in part.cular.

关键词： plasmonics elect.on microscopy Elect.on Energy Loss Spect.oscopy (EELS) cat.odoluminescence Phot.emission Elect.on Microscopy (PEEM) Phot.-Induced Near-field Elect.on Microscopy (PINEM) Elect.on Energy Gain Spect.oscopy (EEGS)

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REPELLERS FOR MULt.FUNCt.ONS OF SEMI-BORNOLOGICAL SPACES

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Act. Mat.emat.ca Scient.a 2008年第3期28卷 545-550页

作者： M.R. Molaei t. Waezizadeh Depart.ent.of Mat.emat.cs University of Kerman

In t.is art.cle t.e not.on of repeller for mult.funct.ons from t.e viewpoint. of semi-bornologicul spaces is considered. t.e concept.of lower semi-cont.nuous mult.funct.ons is ext.nded by t.e use of semi-bornological spaces. Semi-bornological vect.r spaces are st.died. t.e not.on of conjugacy for semi-bornological mult.funct.ons is considered. t.e persist.nce of repeller under conjugat. relat.on is proved.

关键词： Semi-bornology repeller mult.funct.on conjugacy

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Silencing NOA1 Elevat.s Herbivory-Induced Jasmonic Acid Accumulat.on and Compromises Most.of t.e Carbon-Based Defense Met.bolit.s in Nicot.ana at.enuat.

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Journal of Int.grat.ve Plant.Biology 2011年第8期53卷 619-631页

作者： Hendrik Wünsche Ian t. Baldwin Depart.ent.of Molecular Ecology Max Planck Inst.t.t. for Chemical Ecology

Nit.ic oxide-associat.d prot.in 1 （NOA1） is involved in various abiot.c st.ess responses and is required for plant.resist.nce t. pat.ogen infect.ons. However, t.e role of NOA1 in plant.herbivore int.ract.ons has not.been explored. We creat.d NOA1-silenced Nicot.ana at.enuat. plant. （irNaNOA1）. Compared wit. wild-t.pe （Wt. plant., irNaNOA1 plant. had highly decreased phot.synt.esis rat.s. We furt.er examined various t.ait. import.nt.for plant.defense against.it. specialist.herbivore Manduca sext. by t.eat.ng Wt.and irNaNOA1 plant. wit. mechanical wounding and M. sext. oral secret.ons （OS）. NOA1-silenced plant. showed elevat.d levels of herbivory-induced jasmonic acid （JA）, but.decreased JA-isoleucine conjugat. （JA-Ile） levels. t.e decreased JA-Ile levels did not.result.from compromised JAR （jasmonic acid resist.nt. act.vit. in irNOA1 plant.. Moreover, nit.ogen-rich defensive compounds, nicot.ne and t.ypsin prot.inase inhibit.rs, did not.differ bet.een Wt.and irNaNOA1 plant.. In cont.ast. concent.at.ons of most.carbon-based defensive compounds were lower in t.ese plant. t.an in Wt.plant., alt.ough t.e levels of chlorogenic acid were not.changed. t.erefore, silencing NOA1 alt.rs t.e allocat.on of carbon resources wit.in t.e phenylpropanoid pat.way. t.ese dat. suggest.t.e involvement.of NOA1 in N. at.enuat.’s defense against.M. sext. at.ack, and highlight.it. role in phot.synt.esis, and biosynt.esis of jasmonat.s and secondary met.bolit.s.

关键词： NOA1 defense herbivory nit.ic oxide-associat.d prot.in 1 secondary met.bolit.s.

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Predat.r-induced phenot.pic plast.cit. of shape and behavior： parallel and unique pat.erns across sexes and species

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Current.Zoology 2017年第4期63卷 369-378页

作者： Heat.er A. ARNEt. Michael t. KINNISON School of Biology and Ecology University of Maine 0rono ME 04469 USA

Phenot.pic plast.cit. is oft.n an adapt.t.on of organisms t. cope wit. t.mporally or spat.ally het.r- ogenous landscapes. Like ot.er adapt.t.ons, one would predict.t.at.different.species, populat.ons, or sexes might.t.us show some degree of parallel evolut.on of plast.cit., in t.e form of parallel react.on norms, when exposed t. analogous environment.l gradient.. Indeed, one might.even ex- pect.parallelism of plast.cit. t. repeat.dly evolve in mult.ple t.ait. responding t. t.e same gradi- ent. result.ng in int.grat.d parallelism of plast.cit.. In t.is st.dy, we experiment.lly t.st.d for paral- lel pat.erns of predat.r-mediat.d plast.cit. of size, shape, and behavior of 2 species and sexes of mosquit.fish. Examinat.on of behavioral t.ials indicat.d t.at.t.e 2 species showed unique pat.erns of behavioral plast.cit., whereas t.e 2 sexes in each species showed parallel responses. Fish shape showed parallel pat.erns of plast.cit. for bot. sexes and species, albeit.males showed evidence of unique plast.cit. relat.d t. reproduct.ve anat.my. Moreover, pat.erns of shape plast.cit. due t. predat.r exposure were broadly parallel t. what.has been depict.d for predat.r-mediat.d popula- t.on divergence in ot.er st.dies （slender bodies, expanded caudal regions, vent.ally locat.d eyes, and reduced male gonopodia）. We did not.find evidence of phenot.pic plast.cit. in fish size for ei- t.er species or sex. Hence, our findings support.broadly int.grat.d parallelism of plast.cit. for sexes wit.in species and less int.grat.d parallelism for species. We int.rpret.t.ese findings wit. respect.t. t.eir pot.nt.al broader implicat.ons for t.e int.ract.ng roles of adapt.t.on and const.aint.in t.e evolut.onary origins of parallelism of plast.cit. in general.

关键词： boldness common garden geomet.ic morphomet.ics react.on norm sexual dimorphism size at.mat.rit..

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CYCLIC CODES OVER FORMAL POWER SERIES RINGS

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Act. Mat.emat.ca Scient.a 2011年第1期31卷 331-343页

作者： Doughert. St.ven t. 刘宏伟 Depart.ent.of Mat.emat.cs University of Scranton Depart.ent.of Mat.emat.cs Huazhong Normal University

In t.is art.cle, cyclic codes and negacyclic codes over formal power series rings are st.died. t.e st.uct.re of cyclic codes over t.is class of rings is given, and t.e relat.onship bet.een t.ese codes and cyclic codes over finit. chain rings is obt.ined. Using an isomorphism bet.een cyclic and negacyclic codes over formal power series rings, t.e st.uct.re of negacyclic codes over t.e formal power series rings is obt.ined.

关键词： Finit. chain rings cyclic codes negacyclic codes γ-adic codes

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Nonlinear Behaviour of Coflexip Risers

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China Ocean Engineering 2001年第4期16卷 479-490页

作者： Kamal Zare t. K. Dat.a Depart.ent.of Civil Engineering Indian Institute of Technology Hauzkhas New Delhi-110016 India Department of Civil Engineering Indian Institute of Technology Hauzkhas New Delhi-110016 India

A modified Newt.n-Raphson it.rat.ve t.chnique is formulat.d for obt.ining t.e st.t.c configurat.on of t.e Lazy 'S' flexible marine riser bet.een t.e float.r and mid-arch buoy under it. submerged self weight.and t.e applied t.p t.nsion. t.e geomet.ically non-linear problem is solved by finit. difference wit. t.e above t.chnique. t.e problem is formulat.d as a regular boundary value problem wit. specified moment. and deflect.ons at.bot. ends. Usually t.e bending st.ffness of t.e flexible riser made of Coflexip pipe is very low. By use of t.e above analysis, several flexible riser configurat.ons are analyzed and t.eir charact.rist.c behaviors are invest.gat.d. Also, changes in t.e riser charact.rist.cs due t. quasi-st.t.c mot.on of t.e float.r end are est.mat.d for t.e safet. of t.e riser layout.

关键词： lazy 'S' riser coflexip pipe flexible riser mid-arch buoy geomet.ic nonlinearily

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