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  • 简介:CASnanoparticleswereassembledonthesmoothsurfaceofapieceofsilverbyusing1,4-benzenedithiolascouplingmolecules.TheSEMandresonanceRamanspectroscopiccharacterizationsdemonstratethatthenanosizedstructureofCdSwasstillpreserveduponassembly,andatwo-dimensionalstructureofCdSnanoparticleswasformedonthesubstratesurface.TheFT-Ramanspectraindicatethat1,4-benzenedithiolwascoupledbetweenCASnanoparticlesandthesilversurfacewithatiltedorientation.TheRamanscatteringof1,4-benzenedithiolwassubstantiallyenhancedbytheassembledCdSnanoparticles,probablyduetothealterationofthepolarizabilityof1,4-benzenedithiolandtheelectromagneticinteractionbetweenthedipolesoftheCdSparticlewithitsimageinthemetalsubstrate.

  • 标签: 硫化镉 半导体纳米微粒 自组装 拉曼散射 拉曼光谱 银表面
  • 简介:InthispaperwestudytheconvergencenfaclassofmeansonHp(G)(01),themeanstaketheBochner-Rieszmeansin[1],thegeneralizedBochner-Rieszmeansin[2],andtheoperatorsTΦrin[3]asspecialcases.Weobtainweak-typeestimatesfortheassociatedmaximaloperatorsandthemaximalmeanboundednessforthemeans.

  • 标签: operators maximal RIESZ CLASS estimates singular
  • 简介:Inthispaperwestudytheaverageσ-Kwidthandtheaverageσ-linearwidthoftheunitballofl1x(R)inl2α(R).Theexactvaluesofthesewidthsarecalculatedandanoptimalsubspacewiththeoptimallinearopera-tor(fortheσ-linearwidth)areidentified.

  • 标签: exact inequality opera subspace AVERAGE R)IN
  • 简介:Usingafurthermodifiedextendedtanh-functionmethod,richnewfamiliesoftheexactsolutionsforthe(2+1)-dimensionalBroer-Kaup(BK)system,comprisingthenon-travelingwaveandcoefficientfunctions'soliton-likesolutions,singularsoliton-likesolutions,periodicformsolutions,areobtained.

  • 标签: 双曲正切函数 修正展开法 BK系统 精确解 周期孤波
  • 简介:STUDYONTHEREARRANGEMENTREACTIONOF5-AMINO--AMINOCARBONYL-1,2,ANDITSANALOGUES¥RongJianLU;HuaZhengYANG;BaoYingQIAN;HaiYanDENG(N...

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  • 简介:ResourcesonacomputationalGridaregeographicallyistributed,heterogeneousinnature,ownedbydifferentindividualsororganizationswiththeirownschedulingpolicies,havedifferentaccesscostmodelswithdynamicallyvaryingloadsandavailabilityconditions.Thismakertraditionalapproachestoworkloadmanagement,loadbalancingandschedulinginappropriate.Thefirstworkpackage(WP1)oftheEU-fundedDataGridprojectisadddressingtheissueofoptimzingthedistributionofjobsontoGridresourcesbasedonaknowledgeofthestatusandcharacteristicsoftheseresourcesthatisnecessarilyout-of-date(collectedinafiniteamonutoftimeataverylooselycoupledsite).WedescribetheDataGridapproachinintegratingexistingsoftwarecomponents(fromCondor,GGlobus,etc.)tobuildaGridResourceBroker,andtheearlyeffortstodefineaworkableschedulingstrategy.

  • 标签: 软件工具 GRID工具 计算方法
  • 简介:如果一个图的匹配多项式可以被一个路的匹配多项式整除,我们就称此路是该图的一个路因子,路因子在刻画图的匹配等价类,研究匹配唯一方面有很重要的作用.本文得到了图T1,1.m与图Q(3,n)中有路因子的充分必要条件.

  • 标签: 匹配多项式 路因子 特征标
  • 简介:Thispaperprovesthattheoptimalquadratureformulasoftype(r1,…rn)forWm1isunique,andtheextremalfunctionischaracterizedbyitsoscillatoryproperty.Ontheotherhand,thefundamentaltheoremofalgebraforperiodicmonosplineswithoddmultiplicitiesissolvcd

  • 标签: QUADRATURE OSCILLATORY algebra FORMULAS UNIQUENESS whenever
  • 简介:dodecyl1-pyrenylmethyl醚的聚集行为被荧光技术在dioxane水混合溶剂学习。标记的pyrenyl组在在聚集过程期间监视它的环境的极性变化是有效的。在探查环境的极性上基于象链长度效果,自我卷的效果,和分支组效果那样的结构的效果,总数的结构特征被讨论并且被用来在三cholesteryl酉旨和三长链链烷形成的总数上解释结构的特征的效果。

  • 标签: 聚集体 临界聚集浓缩 聚集极性 链长度 十二烷基-1-芘基甲基醚
  • 简介:Theadsorptiondynamicsforphenolinaqueoussolutionoftheadsorbentbasedonpolystyrenewasstudied.InordertodistinguishwiththeBoydquasi-homogeneousmodeloftheinnerstructureofion-exchanger,theparticlediffusionmodelincludingsurfacediffustionmodelandporediffusionmodelwassuggestedwhichissuitabletothemacroporousadsorbent.Thediffusiondeterminationstepoftheadsorptionpocesswasestablishedandtheeffectivediffusioncoefficientwasalsodetermined.Theinfluenceofsurfacediffusionandporedifusionontheparticlediffusionratewasinvestigatedqualitatively.Allofthesewereveryimportanttoimprovethestructureofthemacroporousadsorbentinordertoimprovethemass-transferrate.

  • 标签: 大孔聚合吸附剂 吸附动力学 扩散系数
  • 简介:Inthecontemporarylargetokamak,thedisruptiveterminationofadischargewillreducethelifetimeofthefirstwallmaterialswiththeintenseheatfluxattheenergyquenchandtheintenserunawayelectronsduringthecurrentquench,andgeneratehighelectronmagneticforcesonvacuumvesselcomponentswithintenseeddycurrentatthecurrentquench.Thus,avoidanceandsofteningoftheenergyquenchandthecurrentquenchandcontrollinganexpecteddisruptionoremergencyshutdownmustbeestablishedinthepresenttokamakmachines.

  • 标签: 高Z杂质 HL-1M 激光吹气 等离子体 破裂放电 安全终止