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简介：控制并且操作单个fluorophores的荧光具有对为它在改进分子的photonics和分子的电子学的表演的潜在的使用的最近的年的大兴趣，例如在基于单个分子的器官的轻射出的设备，单个光子来源，器官的地效果晶体管，和探针或传感器。这评论显示出单个器官的分子的荧光排放怎么能用金属性的nanostructures和electric-field-induced电子转移的本地电磁的领域被修改。荧光开关的Electric-field-induced荧光调整，磁滞现象，和成就详细被讨论。

简介：周期性地强迫的空间地扩大的Brusselator在混乱政体被调查。我们探索在各种各样的强迫的频率和强迫的振幅下面产生的反响或非反响的模式。反响的空间地一致的摆动和不规则的结构被发现。而且，常规空间模式的二种类型在适当参数下面被产生。我们数字模拟的结果证明周期的力量能给上升在类似于常规摆动的强迫的系统的状况的空间与时间的混乱的强迫的系统撕了浊音模式。

简介：Theweaknonlinearmodulationofthesurfacewaveofathree-dimensionalimcompressiblefluidwithoutrotation,whichiscontainedinarectangulartroughisstudiedbyusingthemethodofmulti-plescalesperturbationtheory.Theeffectsofviscidandexternaldriveonthemotion,whichmodifiestheLarraza-Puttermanequation,areconsidered.TheresultsareconsistentwiththatofMiles.

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简介：Inthispaperthedynamicsofaweaklynonlinearsystemsubjectedtocombinedparametricandexternalexcitationarediscussed.TheexistenceoftransversalhomoclinicorbitsresultinginchaoticdynamicsandbifurcationareestablishedbyusingtheaveragingmethodandMelnikovmethod.Numericalsimulationsarealsoprovidedtodemonstratethetheoreticalanalysis.

简介：我们用Feshbach回声和外部潜力与悦耳的相互作用在Bose爱因斯坦冷凝物的动力学考察我们的最近的理论进展。为Gross-Pitaevskii方程的一套分析、数字的方法被开发学习Bose爱因斯坦冷凝物的非线性的动力学。经分解，我们在场为有悦耳的相互作用和外部潜力的Gross-Pitaevskii方程的integrable条件，并且在一个和二维的盒子获得一个部件和二部件的Bose爱因斯坦冷凝物的准确分析解决方案的一个家庭。然后，我们使用这些模型调查在二solitons之间的solitons和碰撞的动力学。数字地，分析准确答案的稳定性被检查并且现象例如戒指黑暗soliton和vector-soliton的动力学和调整，经由Feshbach回声，使量子化的soliton和旋涡在的soliton变换伪二维也被调查。两个都，准确、数字的答案证明Bose爱因斯坦冷凝物的动力学能被Feshbach回声和外部潜力有效地控制，它在Bose爱因斯坦冷凝物为原子事波浪和非线性的刺激的操作提供一个好机会。

简介：Theharmonysearchalgorithmisappliedtooptimumdesignsofafunctionallygraded(FG)-carbonnanotubes(CNTs)-reinforcedpipesconveyingfluidsubjectedtomovingload.ThestructureismodelledbyReddycylindricalshelltheoryandthefinalequationsareobtainedbyprincipalofHamilton.Basedondifferentialquadraturemethod(DQM),thedynamicdisplacementofsystemisderived.

简介：在这篇论文，我们将构造某明确的片明智光滑(全球连续)答案象一样炸毁答案到多维的Landau-Lifshitz方程，题目到不连续、无界的外部磁场。当外部磁场是连续的时，一些明确的准确光滑的答案并且骤起答案也被构造。我们也建立一些必要、足够的条件当外部磁场趋于到零时，保证没有外部磁场，有外部磁场的多维的Landau-Lifshitz方程的答案收敛到方程的答案。

简介：Experimentalstudyofanairliftwithamagneticallystabilizedbedintheriserbottomhasbeenperformed.Externalmagneticfieldallowseasycontrolofmagnetizedbedstructureandliquidcirculationrate.Minimumstabilizationandfluidizationconditionshavebeendeterminedexperimentallyandbyathree-linegraphicalmethod.Semi-empiricaldatacorrelationsofsectionsoftheexperimentalcurveshavebeenperformed.Scalingrelationshipsknownfromnon-magneticairliftareapplicabletoo,butwiththeassumptionthatthemagneticfieldaffectstheloopfrictioncoefficientonly.

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简介：Thecompositiondistribution（CD）andmicroisotacticitydistribution（ID）ofpropene/1-hexenecopolymersynthesizedbyMgCl2/DIBP/TiCl4（DIBP:diisobutylphthalate）weredeterminedbyfractionatingthecopolymersaccordingtocrystallinityandcharacterizingthefractionsby13CNMR.Theeffectsoftwoalkoxysilanedonors,triethoxyphenylsilane（PTES）anddimethoxydi-tert-butylsilane（TBMS）,onCDandIDofthecopolymrswerecompared.ThreemainpartsintheCDdiagramofeachcopolymerweredistinguished,whichwerecorrelatedtoactivecenterdistribution（ACD）basedonthreegroupeofdif-ferentactivecenters.Bystudyingthechangesin1-hexenecontent,microisotacticityandreactivityratioproductofthreetypicalfractions,theeffectsofexternaldonoronACDwerebetterelucidated.ItwasfoundthatTBMSshowsmuchstrongereffectsonACDthanPTES.Intheformersystem,mostfractionswereproducedonactivecenterswithrelativelylowerr1r2,higherreactivityto1-hexene,andhigherstereospecificityascomparedtothesystemwithoutexternaldonor.ItisconcludedthattheobservedveryextensivechangesinACDaremainlyresultedbytheformationofnewtypesofactivecenters,possiblybycoordinationofexternaldonortocertainpositionsonthecatalyst.

简介：BycombiningtheB-splinebasissetwithmodelpotential(B-spline+MP),wepresentoscillatorstrengthspectraofRydbergLiatomsinexternalfields.Thephotoabsorptionspectraareanalyzed.Overthenarrowenergyrangesconsideredinthispaper,thestructureofthespectracanbeindependentoftheinitialstatechosenforagivenatom.Ourresultsareingoodagreementwithprevioushigh-precisionexperimentaldataandtheoreticalcalculations,wheretheR-matrixapproachtogetherwithmultichannelquantumdefecttheory(R-matrix+MQDT)wasused.ItissuggestedthatthepresentmethodscanbeappliedtodealwiththeoscillatorstrengthspectraofRydbergatomsincrossedelectricandmagneticfields.

简介：Synchronousgammaoscillationsarebelievedtoplayaprominentroleintheinformationprocessingofbiologicalneuralsystems.Experimentalobservationshavefoundthatthefrequencyandpowerofgammaoscillationsintheprimaryvisualcortex(V1zone)areregulatedbytheilluminationcontrastofvisualstimulus.However,theunderlyingmechanismofhowthesynchronousoscillationsdependontheilluminationcontrasthasnotbeenwellexplained.Weproposealocalexcitatory/inhibitory(E/I)neuronalnetworkofintegrate-and-fire(IAF)neuronswiththedifference-of-Gaussians(DOG)receptivefieldtounveilthismechanism.Simulationresultsdemonstratethatthehighertheilluminationcontrast,thehigherthefrequencyofgammaoscillations.Thepowerofgammaoscillationsalsoincreaseswiththeincreaseofilluminationcontrast.Theseresultsareconsistentwiththeexperimentalfindings.

简介：我们与二根激光横梁调查一个单个三水平的套住的离子的相互作用。由使用单一的转变和小旋转转变，没有执行Lamb-Dicke近似，这个量系统的一个准确答案被获得，并且套住的状态被观察。

简介：TheexternalsurfaceofHZSM-5zeolitewaspassivatedbyliquidsiliceousdepositionandbyacidicsitespoisoningwithlepidine,respectively.Thenmethanol-to-hydrocarbons(MTH)reactionwasinvestigatedovertheaboveas-preparedcatalystsandthedissolublecokeontheseusedcatalystswasanalyzedbyGC-MS,tostudytheroleoftheexternalsurfaceofHZSM-5inthecatalyticreaction.ComparisonwiththeexperimentalresultsbasedonparentZSM-5showedthattheproductdistributionofMTHreactionwasobviouslyinfluencedbytheexternalsurface.Evidenceswerelistedasfollows:(1)thefinalproductonparentHZSM-5showedhigheraromaticselectivity,lowerolefinselectivity,lowerratioofC2/C3+aliphaticsandhigherratioofC3/C4+aliphaticsthanthereactionmixtureproducedbythesolecatalysisofacidicsitesinHZSM-5channel;(2)alittleofpentamethylbenzeneandhexamethylbenzeneintheproductonparentHZSM-5,wasproducedviamulti-methylationofmethylbenzeneontheexternalsurface.TheaboveconclusionmayalsobesuitableforMTHreactionoverotherzeoliteswith10-ringchannel.

简介：Wereportonanall-solid-statehigh-powerquasi-continuousbluelightsourcebythefrequencydoublingofasignalwavefromanopticalparametricoscillator(OPO).A50-mm-longLiB305(LBO)crystalisusedfortheOPO,whichispumpedbyadiode-pumpedNd:YAGgreenlaser(1OkHz,50ns).TunableblueemissioninanewnonlinearcrystalBiB306(BiBO)isobtainedwithawavelengthrangefrom450to495nm.Theaveragepowerofthesignaloutputisashighas9.3Wfrom924to970nm.Themaximumoutputofthebluelaserwiththesecondharmonicwalk-offcompensationis1.3Waveragepowerat470nmfor6.2WofOPOsignallightat940nm.

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简介：Weinvestigateaone-dimensionaltwo-componentsysteminanopticallatticeofattractiveinteractionsunderaspindependentexternalpotential.Basedonthedensity-matrixrenormalizationgroupmethods,weobtainitsphasediagramasafunctionoftheexternalpotentialimbalanceandthestrengthoftheattractiveinteractionthroughtheanalysisonthedensityprofilesandthemomentumpaircorrelationfunctions.Wefindthattherearethreedifferentphasesinthesystem,acoexistedfullypolarizedandFulde–Ferrell–Larkin–Ovchinnikov(FFLO)phase,anormalpolarizedphase,andaBardeen–Cooper–Schrieffer(BCS)phase.Differentfromthesystemsofspin-independentexternalpotential,wheretheFFLOphaseisnormallyfavoredbytheattractiveinteractions,inthepresentsituation,theFFLOphasesareeasilydestroyedbytheattractiveinteractions,leadingtothenormalpolarizedortheBCSphase.