简介:CASnanoparticleswereassembledonthesmoothsurfaceofapieceofsilverbyusing1,4-benzenedithiolascouplingmolecules.TheSEMandresonanceRamanspectroscopiccharacterizationsdemonstratethatthenanosizedstructureofCdSwasstillpreserveduponassembly,andatwo-dimensionalstructureofCdSnanoparticleswasformedonthesubstratesurface.TheFT-Ramanspectraindicatethat1,4-benzenedithiolwascoupledbetweenCASnanoparticlesandthesilversurfacewithatiltedorientation.TheRamanscatteringof1,4-benzenedithiolwassubstantiallyenhancedbytheassembledCdSnanoparticles,probablyduetothealterationofthepolarizabilityof1,4-benzenedithiolandtheelectromagneticinteractionbetweenthedipolesoftheCdSparticlewithitsimageinthemetalsubstrate.
简介:Thepurposeofthepresentpaperistoevaluatetheerroroftheapproximationofthefunc-tionfL1[0,1]byKantorovich-BernsteinpolynomialsinLp-metric(0
1).
简介:InthispaperwestudytheconvergencenfaclassofmeansonHp(G)(0
1),themeanstaketheBochner-Rieszmeansin[1],thegeneralizedBochner-Rieszmeansin[2],andtheoperatorsTΦrin[3]asspecialcases.Weobtainweak-typeestimatesfortheassociatedmaximaloperatorsandthemaximalmeanboundednessforthemeans.
简介:Usingafurthermodifiedextendedtanh-functionmethod,richnewfamiliesoftheexactsolutionsforthe(2+1)-dimensionalBroer-Kaup(BK)system,comprisingthenon-travelingwaveandcoefficientfunctions'soliton-likesolutions,singularsoliton-likesolutions,periodicformsolutions,areobtained.
简介:STUDYONTHEREARRANGEMENTREACTIONOF5-AMINO-1-AMINOCARBONYL-1,2,ANDITSANALOGUES¥RongJianLU;HuaZhengYANG;BaoYingQIAN;HaiYanDENG(N...
简介:ResourcesonacomputationalGridaregeographicallyistributed,heterogeneousinnature,ownedbydifferentindividualsororganizationswiththeirownschedulingpolicies,havedifferentaccesscostmodelswithdynamicallyvaryingloadsandavailabilityconditions.Thismakertraditionalapproachestoworkloadmanagement,loadbalancingandschedulinginappropriate.Thefirstworkpackage(WP1)oftheEU-fundedDataGridprojectisadddressingtheissueofoptimzingthedistributionofjobsontoGridresourcesbasedonaknowledgeofthestatusandcharacteristicsoftheseresourcesthatisnecessarilyout-of-date(collectedinafiniteamonutoftimeataverylooselycoupledsite).WedescribetheDataGridapproachinintegratingexistingsoftwarecomponents(fromCondor,GGlobus,etc.)tobuildaGridResourceBroker,andtheearlyeffortstodefineaworkableschedulingstrategy.
简介:Thispaperprovesthattheoptimalquadratureformulasoftype(r1,…rn)forWm1isunique,andtheextremalfunctionischaracterizedbyitsoscillatoryproperty.Ontheotherhand,thefundamentaltheoremofalgebraforperiodicmonosplineswithoddmultiplicitiesissolvcd
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。
简介:Theadsorptiondynamicsforphenolinaqueoussolutionoftheadsorbentbasedonpolystyrenewasstudied.InordertodistinguishwiththeBoydquasi-homogeneousmodeloftheinnerstructureofion-exchanger,theparticlediffusionmodelincludingsurfacediffustionmodelandporediffusionmodelwassuggestedwhichissuitabletothemacroporousadsorbent.Thediffusiondeterminationstepoftheadsorptionpocesswasestablishedandtheeffectivediffusioncoefficientwasalsodetermined.Theinfluenceofsurfacediffusionandporedifusionontheparticlediffusionratewasinvestigatedqualitatively.Allofthesewereveryimportanttoimprovethestructureofthemacroporousadsorbentinordertoimprovethemass-transferrate.
简介:Inthecontemporarylargetokamak,thedisruptiveterminationofadischargewillreducethelifetimeofthefirstwallmaterialswiththeintenseheatfluxattheenergyquenchandtheintenserunawayelectronsduringthecurrentquench,andgeneratehighelectronmagneticforcesonvacuumvesselcomponentswithintenseeddycurrentatthecurrentquench.Thus,avoidanceandsofteningoftheenergyquenchandthecurrentquenchandcontrollinganexpecteddisruptionoremergencyshutdownmustbeestablishedinthepresenttokamakmachines.
简介:Anovelβ-cyclodextrin(β-CD)derivativebearingdiethanolaminemoietywassynthesizedbyaconvenientmethodwith63%yield,andthenewhostcompoundwascharacterizedby(13)~C-NMR,FT-IRspectraetc,