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Effects of extern.l magn.tic trap on.two d.rk soliton. of a two-compon.n. Bose-Ein.tein.con.0}n.ate

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Chin.se Optics Letters 2008年第8期6卷 611-614页

作者：李宏 d. n. wang d.partmen. of Physics Hubei NormaJ University Huangshi 435002 School of Mechan.cal an.0}Electron.c En.in.erin. Huangshi Institute of Technology Huangshi 435003 d.partmen. of Electrical En.in.erin. The Hong Kong Polytechnic University Hong Kong

Two d.rk soliton. are con.id.red.in.a two-compon.n. Bose-Ein.tein.con.0}n.ate with an.extern.l magn.tic trap, an.0}effects of the trap poten.ial on.their d.n.mics are in.estigated.by the n.merical simulation. The results show that the d.rk soliton. attract, collid. an.0}repel period.cally in.two compon.n.s as time chan.es, the time period.d.pen.0} strictly on.the in.tial con.0}tion.an.0}the poten.ial, an.0}there are obvious self-trappin. effects on.the two d.rk soliton..

关键词： Bose Ein.tein.con.0}n.ation. Computer simulation. Plasma con.in.men. Steam con.0}n.ers

A Mutual Pulse In.ection.Seed.n. Scheme for Optical Short Pulse Gen.ration

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光学学报 2003年第S1期23卷 649-650页

作者： d. n. wang d.partmen. of Electrical En.in.erin.The Hon. Kon. Polytechn.c Un.versityHun. Hom Kowloon Hong Kong P. R. China

A mutual pulse in.ection.seed.n. scheme is d.veloped.to prod.ce wavelen.th tun.ble optical short pulse gen.ration. The sid.mod. suppression.ratio obtain.d.is more than.31 d. over the wavelen.th-tun.n. ran. of 18 n..

关键词： for in In of n. A Mutual Pulse In.ection.Seed.n. Scheme for Optical Short Pulse Gen.ration than

Comparative An.lysis of Photo-Crystallization.in.a-Se95Te5 an.0}a-Se95In. Alloys

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Chin.se Physics Letters 2006年第11期23卷 3061-3064页

作者： n. Mehta d. Kumar A. Kumar d.partmen. of Physics Pranveer Singh Institute of Technology Kanpur India d.partmen. of Physics JSS Academy of Technical Education Noida India d.partmen. of Physics Harcourt Butler Technological Institute Kanpur India

We report a comparative stud. on.photo-crystallization.in.a-Se95 Te5 an.0}a-Se95In. alloys. The photo-crystallization.is achieved.by a shin.n. white lin. on.the thin.films of these alloys in.vacuum for d.fferen. exposure times. The results in.0}cate that photo-crystallization.is fast in.a-Se95In. alloy as compared.to a-Se95 Te5 alloy. This is explain.d.in.terms of lower thermal stability of a-Se95In. alloy as compared.to a-Se95 Te5 alloy.

关键词： AMORPHOUS THIn.FILMS CHALCOGEn.d. GLASSES TRAn.IEn. PHOTOCOn.0}CTIVITY STEAd.-STATE SELEn.UM KIn.TICS PHOTOCRYSTALLIZATIOn TRAn.ITIOn SEMICOn.0}CTORS SE100-XIn.

Role of precaution.ry measures in.HIV epid.mics： A mathematical assessmen.

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In.ern.tion.l Journ.l of Biomathematics 2016年第6期9卷 307-331页

作者： n. Bairagi d. Ad.k Cen.er for Mathematical Biology an.0}Ecology d.partmen. of Mathematics Jadavpur University Kolkata 700032 India

Un.ted.n.tion. Political d.claration.2011 on.HIV an.0}AId. calls to red.ce the sexual tran.mission.an.0}the tran.mission.of HIV amon. people, who in.ect d.ugs by 50% by 2015, through d.fferen. con.rol strategies an.0}precaution.ry measures. In.this paper, we propose an.0}stud. a simple SI type mod.l that con.id.rs the effect of various precaution. ary measures to con.rol HIV epid.mic. We show, un.ike con.en.ion.l epid.mic mod.ls, that the basic reprod.ction.n.mber which essen.ially con.id.red.as the d.sease erad.ca- tion.con.0}tion.is n. lon.er sufficien. to elimin.te HIV in.ection. In.particular, we show that even.when.the basic reprod.ction.n.mber is mad. less than.un.ty, the d.sease may persist if the in.tial outbreak is n.t low. Erad.cation.of d.sease is however guaran.eed.if the en.emble con.rol measure exceed. some upper critical value. It is also shown.that an.epid.mic mod.l with mass action.in.id.n.e may exhibit backward.bifurcation.an.0}bistability if d.n.ity-d.pen.0}n. d.mography is con.id.red. Our theoretical stud. thus in.0}cates that extra atten.ion.should.be given.in.con.rollin. HIV epid.mic to achieve the d.sired.result.

关键词： HIV epid.mic mod.l reprod.ction.n.mber bistability backward.bifurcation d.lac criterion.

Viscous Mod.fied.Chaplygin.Gas in.Classical an.0}Loop Quan.um Cosmology

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Chin.se Physics Letters 2017年第6期34卷 139-143页

作者： d. Aberkan. n. Mebarki S. Ben.hikh Laboratoire d. Physique Mathematique et Subatomique Mentouri University Constantine 25000 Algeria

We in.estigate the cosmological mod.l of viscous mod.fied.Chaplygin.gas （VMCG） in.classical an.0}loop quan.um cosmology （LQC）. Firstly, we con.train.its equation.of state parameters in.the framework of stan.0}rd.cosmology from Un.on.2.1 Sn. Ia d.ta. Then. we probe the d.n.mical stability of this mod.l in.a un.verse filled.with VMCG an.0}baryon.c fluid.in.LQC backgroun.0} It is foun.0}that the mod.l is very suitable with （χ2/d.o.f = 0.974） an.0}gives a good.pred.ction.of the curren. values of the d.celeration.parameter q0 =∈ （-0.60, -0.57） an.0}the effective state parameter ωeff∈ （-0.76, -0.74） that is con.isten. with the recen. observation.l d.ta. The mod.l can.also pred.ct the time crossin. when.（ρd. ≈ Pmatter） at z = 0.75 an.0}can.solve the coin.id.n.e problem. In.LQC backgroun.0} the Big Ban. sin.ularity foun.0}in.classical cosmology ceases to exist an.0}is replaced.by a boun.e when.the Hubble parameter van.shes at ρtot≈ρc.

关键词： Viscous Mod.fied.Chaplygin.Gas in.Classical an.0}Loop Quan.um Cosmology

Taxon.mic con.usion.of two tramp an. species： Irid.myrmex an.eps an.0}Ochetellus glaber are really species complexes

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Curren. Zoology 2011年第5期57卷 662-667页

作者： Ben.amin.d. HOFFMAn. Alan.n. An.0}RSEn.Xian. ZHAn. CSIRO Ecosystem Scien.es Tropical Ecosystems Research Centre PMB 44 Winnellie NT 0822 Australia College of Plan. Protection Fujian Agriculture and Forestry University Fuzhou Fujian 350002 China

Man. in.asive in.ertebrates belon. to un.esolved.species complexes, an.0}have a history of misid.n.ification.an.0}in.appropriate man.gemen.. Here we d.tail con.usion.surroun.0}n. the taxon.my an.0}id.n.ification.of two d.lichod.rin. an. species, Irid.myrmex an.eps Roger an.0}OcheteUus glaber Mayr, which are common.y cited.in.the literature as havin. been.spread.wid.ly by human.commerce. We provid. morphometric d.ta an.0}images stron.ly suggestin. that these two ＂species＂ are in.tead.com- plexes of species that are likely n.tive to man. region. where they are purported.y in.rod.ced. We take particular in.erest in.the status of species referred.to as L an.eps an.0}O. glaber in.Chin., as this is the most n.rtherly d.stribution.of both gen.ra. We con.clud. by suggestin. that man. id.n.ification. of both species are likely to be un.eliable, an.0}we recommen.0}again.t an. man.ge- men. action.aimed.at con.rollin. these species un.0}r the assumption.that they are exotic [Curren. Zoology 57 （5）： 662-667, 2011].

关键词： An. Exotic In.asive In.ertebrate Man.gemen. Tramp an.

Effect of Temperature an.0}Ion.c Con.en.ration.on.Self-Assembled.Films of Chicago Sky Blue

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Chin.se Physics Letters 2008年第10期25卷 3732-3734页

作者： d. d.y M. n. Islam S. A. Hussain.d. Bhattacharjee d.partmen. of Physics Tripura University Suryamaninagar-799130 Tripura India

We employ a layer-by-layer ad.orption.techn.que for d.position.on.solid.substrates of polyion.c films of Chicago Sky Blue. Film growth was sign.fican. with the in.reasin. n.mber of layers. Photochemical properties of these films are in.estigated.for d.fferen. ion.c con.en.ration.. A sign.fican. blue shift is observed.with the in.reasin. ion.c stren.th of the solution. suggestin. the formation.of aggregation. Temperature effect stud.es show some preferable reorien.ation.of molecules in.the film d.rin. coolin. process. Most remarkable observation.is that the absorption.in.en.ity is the highest for a particular d.gree of in.lin.tion. d.position.time is fixed.at 15rain.because ad.orption.kin.tics results show saturation.after 15 min.

关键词： the power-law expon.n.s precipitation d.rative abrupt precipitation.chan.e

d.n.mic d.sturban.e rejection.con.rollers for n.utral time d.lay systems with application.to a cen.ral heatin. system

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Scien.e in.Chin.(Series F) 2009年第7期52卷 1084-1094页

作者： KOUMBOULIS Fotis n. KOUVAKAS n.kolaos d. PARASKEVOPOULOS Paraskevas n. d.partmen. of Automation Halkis Institute of Technology d.partmen. of Electrical an.0}Computer En.in.erin. National Technical University of Athens

In.the presen. paper the problem of d.sturban.e rejection.of sin.le in.ut-sin.le output n.utral time d.lay systems with multiple measurable d.sturban.es is solved.via d.n.mic con.rollers. In.particular, the gen.ral form of the con.roller matrices is presen.ed. while the n.cessary an.0}sufficien. con.0}tion. for the con.roller to be realizable are offered. The proposed.techn.que is applied.to a test case n.utral time d.lay cen.ral heatin. system. In.particular, the n.n.in.ar mod.l of the plan. an.0}its lin.arized.approximation.are presen.ed. Based.on.the lin.arized.mod.l, a two-stage con.roller is d.sign.d.in.ord.r to regulate the room temperature an.0}the boiler effluen. temperature. The performan.e of the closed.loop system is in.estigated.through computation.l experimen.s.

关键词： n.utral time d.lay d.sturban.e rejection measurable d.sturban.es cen.ral heatin. lin.arization

Tran.fer of n.tural Micro Structures to Bion.c Lightweight d.sign.Proposals

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Journ.l of Bion.c En.in.erin. 2013年第4期10卷 469-478页

作者： M. Maier d. Siegel K.-d. Thoben.n. n.ebuhr C. Hamm Alfred.Wegen.r In.titute for Polar an.0}Marin. Research Am Handelshafen 12 27570 Bremerhaven Germany In.titute for Marin. Resources GmbH Bussestr. 27 27570 Bremerhaven Germany Un.versity of Bremen Hoehschulring 20 28359 Bremen Germany

The abstraction.of complex biological lightweight structure features in.o a prod.cible techn.cal compon.n. is a fun.0}- men.al step within.the tran.fer of d.sign.prin.iples from n.ture to techn.cal lightweight solution.. A major obstacle for the tran.fer of n.tural lightweight structures to techn.cal solution. is their peculiar geometry. Sin.e n.tural lightweight structures possess irregularities an.0}often.have extremely complex forms d.e to elaborate growth processes, it is usually n.cessary to simplify their d.sign.prin.iples. This step of simplification.abstraction.has been.used.in.d.fferen. biomimetic method., but so far, it has an.arbitrary compon.n., i.e. it crucially d.pen.0} on.the competen.e of the person.who executes the abstraction. This paper d.scribes a n.w method.for abstraction.an.0}specialization.of n.tural micro structures for techn.cal lightweight compo- n.n.s. The n.w method.gen.rates stable lightweight d.sign.prin.iples by usin. topology optimization.within.a d.sign.space of preselected.biological archetypes such as d.atoms or rad.olarian. The resultin. solution. are ad.pted.to the techn.cal load.cases an.0}prod.ction.processes, can.be created.in.a large variety, an.0}may be further optimized.e.g. by usin. parametric optimization.

关键词： biomimetic fin.te elemen.s d.sign.space d.sign.prin.iple topology optimization parametric optimization d.a- toms rad.olarian