简介：Thispaperconsidersananisotropicswarmmodelwithaclassofattractionandrepulsionfunctions.Itisshownthatthemembersoftheswarmwillaggregateandeventuallyformacohesiveclusteroffinitesizearoundtheswarmcenter.Moreover,Itisalsoprovedthatundercertainconditions,theswarmsystemcanbecompletelystable,i.e.,everysolutionconvergestotheequilibritmapointsofthesystem.Themodelandresultsofthispaperextendarecentworkonisotropicswarmstomoregeneralcasesandprovidefurtherinsightintotheeffectoftheinteractionpatternonself-organizedmotioninaswarmsystem.

简介：Itisshownthatthecorticalbrainnetworkofthemacaquedisplaysahierarchicallyclusteredorganizationandtheneuronnetworkshowssmall-worldproperties.Nowthetwofactorswillbeconsideredinourmodelandthedynamicalbehaviorofthemodelwillbestudied.Westudythecharactersofthemodelandfindthatthedistributionofavalanchesizeofthemodelfollowspower-lawbehavior.

简介：Quantumdotlasershaveexcellentcharacteristicssuchastimperaturestabilityofthresholdcurrentandultra-highmaterialgain.Quantumdotstructuresfabricatedbyself-organizedgrowthhavehighcrystallineperfection,highquantumyieldofradiativerecombinationandhighsizehomogeneity.Mainadvantagesandoperatingpropertiesofquantumdotalsersfabricatedbyself-organizedgrowtharebrieflyintroduced.

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简介：FromDecember8toDecember17,ZhangWei,VicePresidentofCCPITheadedadelegationcomprisedofentrepreneurs,delegatesfromsub-branchofCCPITandtherelevantgovernmentinstitutionsetctohavemadethevisittotheUK,FinlandandFrance.ThisvisitaimedatpushingforwardCCPIT'sgoalofpromotingenterprisesto'goglobal',andhelpingChineseenterprisesforcefullycopewiththe

简介：B_2O_3-P_2O_5-SiO_2(BPS)three-dimensional(3D)high-organizedpolystyrene(PS)opalsandinverseopalswithlargedomainwerefabricatedandcharacterized.Scanningelectronmicroscope(SEM)showsthreeorfoursmall'windows',indicatingthataverywellinterconnectionbetweenPSspheresofopal.Theultraviolet-visible(UV-vis)spectraindicatethatthephotonicbandgaps(PBGs)areabout710and604nmfor320-and270-nmspheresrespectively.WhileaccordingtoBragg'sequation,thesimulationresultsshouldbe762and643nm,whichmeanthat52and39nmwereshiftedtoblueregion,respectively.

简介：Researchonparticulatecharacteristicshasbeenanimportantfrontierinphysicsandchemistryduringthepastdecades.Ithashoweverbeenmostlyfocusedongranularmaterialswithshort-rangeinteractions.Inthiswork,itwasfoundthatthepowerlawofparticlesizedistributionappliedtothelong-rangeinteractingsystemoffloatingdustinair,fromwhichwededucedthatself-organizedcriticalitymightholdforfloatingdustjustasgranularmaterialswithshort-rangeinteractions.Thisfeaturemayrevealunderlyingkineticmechanisms,importantindispersedparticlesystems.Inindustry,powerlawofsizedistributionofdispersedparticlescanbeusedtoinvestigatethechangeofdustsize,andthepowerlawparametercouldbetakenasanimportantindexfordustseparation.

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简介：InordertofurtherstrengthenthecooperationbetweenthelocalcompaniesinJiangsuProvinceandtheircounterpartsintheUSAinthefieldssuchasenvironmentalprotection,biomedicineandsophisticatedmachinesetc,CCPITJiangsuSub-council,attheinvitationofLosAngelesChamberofCommerce,LosAngelesEconomic

简介：GrazingincidentX-raydiffractionatdifferentgrazinganglesforself-organizedGedotsgrownonSi(001)arecarriedoutandlatticeconstantexpansionsof1.2?paralleltothesurfaceascomparedwiththeSilatticearefoundwithintheGedots.A3.1?latticeexpansionoftheGedotsalongthegrowthdirectionisalsofundbyordinaryX-ray(004)diffraction.AccordingtothePoissonequationandtheVegardlaw,ourresultsinferthattheGedotshouldbeapartiallystrainrelaxedSiGealloywithGecontentofabuot55?2001ElsevierScienceB.V.Allrightsreserved.

简介：在自我组织的TiO2nanotubes(Pt-TiO2/Ti)上支持的铂nanoparticles用cathodic减小跟随的电气化学的阳极的氧化被准备。结构和Pt-TiO2/Tielectrocatalyst的化学自然被X光检查衍射(XRD)和扫描电子显微镜学(SEM)调查。XRD和SEM结果在nanotubularTiO2上显示铂的存在。磅存款的稳定性被周期的voltammetry也在0.5mol/LH2SO4答案调查。当退火了到锐钛矿时，Pt-TiO2/Ti催化剂的electrocatalytic活动在甲醇的电镀物品氧化期间展出改进效果。Pt-TiO2/Tielectrocatalyst上的甲醇氧化的连续周期的voltammograms看唯一的electrocatalytic特征是否与体积磅催化剂上的甲醇氧化相比。当一部electroactive电影的形成发生到工作催化剂表面上时，这因为由自我组织的TiO2nanotubes上的磅粒子的磅(111)方面的吸附的公司的进一步快的氧化。

简介：这份报纸为高度装载的接近音速的压缩机串联论述对流动分离的重新组织的冲击波的影响的详细数字调查。边界层吸(BLS)被用来控制冲击波的地点和力量，与在49%弦定位的把发成送气音的槽，在的地方只在前缘的冲击波的冲击点是下游的。数字模拟基于NUMECA，一个商业软件，在有第三顺序的空间精确性的以房间为中心的控制卷途径被用来解决3-D的地方在笛卡儿的坐标系统下面的平均Reynolds的海军司烧方程。几个结论能通过数字结果的观察被做。(1)在串联经过的多重冲击波在冲击波下游的吸表面上带了边界层的速度赤字，导致片的吸方面上的严重分开的流动，特别当前面冲击波比震动的其余部分强壮得多时。(2)有小集体流动率的BLS不能有效地改进边界层。来自串联前缘的倾斜的冲击波的冲击点是什么时候，放血了到由BLS的经过冲击波下游，边界层流动极大地被改进。然而，如果BLS集体流动率超过批评价值(1.2%)，冲击波下游的边界层将与吸表面分开。(3)在片中间跨度，压缩机片的空气动力学的表演作为BLS集体流动率增加被改进。最佳BLS是大约1.2%。与基线盒子相比，有1.2%的流动率的BLS增加全部的压力恢复系数12%，并且减少在18%的散开因素和到7的偏差角度吗？

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简介：基于小世界网络在一个pulse-coupledintegrate-and-fire神经原模型变老和自我组织的criticality的效果被学习了。我们给老化网络，平均最短的路径长度，我们的网络的直径，和聚类的系数的度分发，并且发现我们的神经原模型显示幂定律行为，并且与然后增加的连接增加的棕土，老化的效果变得越来越小。这证明如果大脑以自我组织的criticality状态工作，它能减轻老化引起的一些效果。