简介:基于非破坏性的检查的实际状况,合成散布的计算模型被使用三维的一半空间建立有限差别时间领域,和蒙特卡罗方法被用来在建议计划与粗糙解决光表面的问题。而且,缺点粒子为一种更复杂的状况作为周期的粒子被观察。以便在光表面内获得缺点的散布贡献,差别雷达十字节被增加进模型在数字,分离距离,不同深度和缺点的不同材料的效果上分析选择计算。不同事件角度的效果也被讨论。数字结果详细被分析表明最好的位置由为事件角度在固定的度的步检测在光表面发现缺点。
简介:Inlostpaperofmagneto-hydrodynamicinstabilityanalysisofliquidmetalfreesurfacejetflow(PartⅠ),themagneto-hydrodynamicinstabilitywasanalyzedforthejetflowinatransversenon-uniformmagneticfield,BT.But,asallknown,fortherealconditionsofliquidmetallimiter-divertorplasma-facingcomponentsareintoroidalandpoloidalfields.So,wetrytoanalyzethemagneto-hydrodynamicinstabilityofthejetflow(herebyonlyforcircularshapecrosssectionjetflow)inthezoneofnon-uniformmagneticfields,
简介:Anumericalstudyofanon-Darcymixedconvectiveheatandmasstransferflowoveraverticalsurfaceembeddedinaporousmediumundertheefectsofdoubledispersion,melting,andthermalradiationisinvestigated.Thesetofgoverningboundarylayerequationsandtheboundaryconditionsistransformedintoasetofcouplednonlinearordinarydiferentialequationswiththerelevantboundaryconditions.ThetransformedequationsaresolvednumericallybyusingtheChebyshevpseudospectralmethod.Comparisonsofthepresentresultswiththeexistingresultsintheliteraturearemade,andgoodagreementisfound.Numericalresultsforthevelocity,temperature,concentrationprofiles,andlocalNusseltandSherwoodnumbersarediscussedforvariousvaluesofphysicalparameters.
简介:PolysaccharidecoatedPLAnanoparticlesbearingaldehydegroupswerepreparedbydialysisofDMSOsolutionofcholesterolhydrophobic-modifieddextranpolyaldehydeandPLAagainstwater.Theaveragediameterofthenanoparticleswasabout160nm,andthesizedistributionwasnearlyhomogenous.ThenanoparticleswerefunctionalizedsimultaneouslywithCD71andEGFRantibodythroughtheSchiff'sbasereaction,andthenradiolabeledwith~(99m)Tc.Afterperfusedtheradiolabelednanoparticlesintotumor-bearing...
简介:Strongnonlinear,electro-optical,andthermo-opticalpropertiesoflithiumniobate(LN)havegainedmuchattention.However,theimplementationofLiNbO3inrealdevicesisnotatrivialtaskduetodifficultiesinmanufacturingandhandlingthin-filmLN.Inthisstudy,weinvestigateanopticaldevicewheretheBlochsurfacewave(BSW)propagatesonthethin-filmLNtounlockitsproperties.First,accesstotheLNfilmfromair(oropenspace)isimportanttoexploititsproperties.Second,forsustainingtheBSW,one-dimensionalphotoniccrystal(1DPhC)isnecessarytobefabricatedunderthethin-filmLN.Weconsidertwomaterialplatformstorealizesuchadevice:bulkLNandcommercialthin-filmLN.Clearreflectancedipsobservedinfar-fieldmeasurementsdemonstratethepropagationofBSWsontopoftheLNsurfaceofthedesigned1DPhCs.
简介:Inhibitorhydroquinone(HQ)wasaddedtothereactionsystemtopreparepolypropylene/polystyrene(PP/PS)blendpelletswithoutPSonthesurfaceduringdiffusionandsubsequentpolymerizationofstyreneinisotacticpolypropylenepellets.TheeffectsoftheamountofHQondiametricaldistributionofPS,surfacemorphologyofthepelletsandphasemorphologyinsidetheblendpelletswereinvestigated.
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简介:Chirped-pitchnanoscalecircularsurface-reliefdiffractiongratingswerephotoinscribedonthinfilmsofaDisperseRed1functionalizedmaterialusingaholographictechnique.Atruncatedconicalmirrorsplitsandredirectsaconvergingordiverginglaserbeam,resultinginaninterferencepatternofconcentriccircleswithachirpedpitchthatcanbecontrolledbyvaryingthewavefrontcurvature.Theresultingcirculargratingshaveadiameterof12mmandhavetheadvantageofbeingproducedinafast,single-stepprocedurewithnorequirementforamastergrating,photomask,ormillingequipment.
简介:Hightimeresolutionmeasurementsoftheelectrostaticfluctuations,radialelectricfieldErandturbulence-inducedelectronfluxΓehavebeenperformedacrossthetransitionoflowerhybridcurrentdriveimprovedconfinementwithagraphiteLangmuirprobearrayatthelastclosedfluxsurfaceoftheHT-7tokamak.ThedecreaseofΓeisdominatedbythesuppressionoffluctuationlevels,whichfollowsthechangeofEr.AreversalofthepoloidalpropagationdirectionofturbulencedemonstratesthatthepoloidalpropagationisdominatedbyEr×Bφdrift.Theenhancementofpoloidalcoherenceaccompaniesthefluctuationsuppression,whichsuggeststhesubtlevariationofturbulencefeatures.
简介:TernarymetalchalcogenidesemiconductorAg8SnS6,whichisanefficientphotocatalystundervisiblelightradiation,isstudiedbyplane-wavepseudopotentialdensityfunctionaltheory.Aftergeometryoptimization,theelectronicandopticalpropertiesarestudied.Ascissoroperatorvalueof0.81eVisintroducedtoovercometheunderestimationofthecalculationbandgaps.Thecontributionofdifferentbandsisanalyzedbyvirtueoftotalandpartialdensityofstates.Furthermore,inordertounderstandtheopticalpropertiesofAg8SnS6,thedielectricfunction,absorptioncoefficient,andrefractiveindexarealsoperformedintheenergyrangefrom0to11eV.TheabsorptionspectrumindicatesthatAg8SnS6hasagoodabsorbencyinvisiblelightarea.Surfaceenergiesandworkfunctionsof(411),(413),(211),and(112)orientationshavebeencalculated.TheseresultsrevealthereasonforanoutstandingphotocatalyticactivityofAg8SnS6.
简介:Backscatteredfieldsfromone-dimensionaltime-varyingGerstnersseasurfacearecalculatedutilisingthesecondordersmallslopeapproximation.Itiswellknownthatspectralpropertiesofthebackscatteredechoesrelatetothevelocityofthesmallelementaryscatterersonseasurfaceprofiles.Therefore,modelingDopplerspectrafromtheoceanrequiresanaccuratedescriptionoftheseasurfacemotion.TheprofileofnonlinearGerstnersseasurfaceshowsverticalskewnessofseawaves,itissharperatthecrestandflatteratthetroughthanlinearwaves,anditsmaximumslopepositionisclosertothecrestthantothetrough.Furthermore,thehorizontalcomponentofthesmallelementaryscatterersorbitvelocityontheseasurface,whichyieldsnoticeableinfluenceonDopplerspectra,canbeobtainedconvenientlybyGerstnersseasurfacemodel.Inthisstudy,thecharacteristicsofDopplerspectraofbackscatteredfieldsfromtime-varyingGerstnersseasurfaceareinvestigatedandthedependencesoftheDopplerfrequencyandtheDopplerbandwidthontheparameters,suchasthewindspeed,theradarfrequency,theincidentangle,etc.arediscussed.ItisshownthattheDopplerbandwidthofmicrowavescatteredfieldsfromGerstnersseasurfaceisconsiderablybroadened.Forthecaseofhighfrequencybackscatteredfields,thevaluesofthehigher-orderspectrumpeaksarelargerthanthoseobtainedbylinearseasurface.