简介：Abicentralpolymer-supportedphasetransfercatalyst,polystyrene-supportedpolyethyleneglycolandpyridiniumsalt(PS-Py-PEG-400),synthesizedwithchloromethylatedpolystyreneassupporteronwhichPEGandpyridiniumsaltwereimmobilizedsuccessively.ItscatalyticactivitywastestedforthereactionofsolidpotassiumacetateandbenzylbromidebyGCanalysis.ItwasfoundthatthebicentralcatalystperformedhigheractivitythanthemonocentralPS-PEG-400andPS-Py.

简介：Somestructurealfactorstothedesignofpolymer-supportedChiralCatalystsarediscussed.andsomenewapprachesfordesigningofpolymer-supportedcatalystsarereviewedinthispaper.

简介：Theprocessingoffine-grainedparticleswithdiametersbetween1and10micronsisdifficultduetostrongvan-der-Waalsattractionforces.Inordertoimprovethehandlingproperties,thefine-grainedparticles,i.e.host-particles,arecoatedwithvariousnanoparticles,i.e.guest-particles.Themixingoffine-grainedpowdersisinfluencedbyparticle-particleinteractions.Iftheseforcesaredistinctivelyused,bothinteractiveandorderedmixtu.rescanbeproduced.Theseparticlemixturesconsistofcomposite-particlesthathavenewphysicalproperties.Thesemodifiedpropertiesdependstronglyonthecoatingprocess,thediameter-andmass-relationshipoftheguest-andthehost-particles.Thepropertiesofthecomposite-particlescansystematicallybeadjustedtotherequirementsofindustrialapplications.Forexample,alaboratorybubblingfluidizedbedcanbeusedtodescribetheconveyingbehaviorofthefunctionalizedhost-particles.Applicationsforthefunctionalizedparticlesareinthepharmaceuticalandthepowdercoatingindustries,e.g.enhanceddrypowderinhalersandthinlacquerfilms.Thepresentresearchcomparesthreedifferentmixing/coatingprocesses.Thecomposite-particlesarecharacterizedbyTEM,SEMandwiththeirfluidizationcharacteristics.Thecoatingprocessitselfismonitoredbytheelectrostaticchargeoftheparticles.

简介：Ageneralprocedureforconstructingmultivariatenon-tensor-productwaveletsthatgen-erateanorthogonaldecompositionofL~2(R~),s≥1,isdescribedandappliedtoyieldexplicitformulasforcompactlysupportedspline-waveletsbasedonthemultiresolutionanalysisofL~2(R~s),1≤s≤3,generatedbyanyboxsplinewhosedirectionsetconstitutesaunimodularmatrix.Inparticular,whenunivariatecardinalB-splinesareconsidered,theminimallysup-portedcardinalspline-waveletsofChuiandWangarerecovered.Arefinedcomputationalschemefortheorthogonalizationofspaceswithcompactlysupportedwaveletsisgiven.Arecursiveapproximationschemefor“truncated”decompositionsequencesisdevelopedandasharperrorboundisincluded.Aconditiononthesymmetryoranti-symmetryofthewaveletsisappliedtoyieldsymmetricbox-splinewavelets.

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简介：Apracticalmethodforcomputingtheone-wayrectangularorthotropicplate(isotropicplateasaspecialcase)issuggestedinthispaper.Thesupportedcondi-tionsintwooppositeedgesmaybesimplysupported,continuousorsupportednonsymmetricallyandtheothertwooppositeedgesareslide-supportedorfree.Aseriesofsimplifiedformulasaregivenforcalculatingthebendingmomentsalongthecrosssection(loadedsection),inwhichtheactingpointoftheconcentratedloadorthecenterofarec-tangularuniformloadislocated.Thevalidrangeandaccuracyoftheseformulaswerestud-iedandtheapproximateresultswereexaminedandcomparedextensivelywiththosebythetriangularseriessolutionorfiniteelementmethod.

简介：在常规天线摄影测量学，高精确的摄影测量的点决心被aerotriangulation总是用因为天线相片的外面的取向参数是未知的，控制在周界附近并且在块区域的中心削尖的很多地面执行。自从Navstar，在摄影测量学的一条工艺的革命发生了全球放系统(GPS)被使用决定暴露的3D坐标在相片飞行使命期间驻扎位置。支持GPS的aerotriangulation被联合的捆调整为摄影测量的观察和照相机取向数据进行。在这种情况中，必要地面控制点被GPS坚定的照相机位置代替。最近的调查证明这个方法正在来到实践。自从1990，我们在这个领域里从事了理论研究，软件开发，和相关实验和生产。到目前为止，丰富的研究成就以理论和应用程序被获得。在这篇论文，我们首先从在照相机和在空中的GPS天线之间的几何学导出支持GPS的aerotriangulation的数学模型，然后简短描述软件包裹WuCAPS(武汉联合了调整程序系统)由作者最新发展了，它为摄影测量、非摄影测量的观察服务联合的捆调整的目的。在现在的工作的结束，一套实际天线拍摄，在1鈭?的图象规模4000与从Tianjing地点拿的在空中的GPS数据，中国被WuCAPS处理。实验结果证实了有4XYZ地面的联合的捆调整的精确性在块区域的角落附近控制点离有3个另外的参数的常规捆调整的很靠近，那导致还原剂88%领域调查和75%生产费用，并且能遇见没有地面控制的由支持GPS的aerotriangulation的在小或中等的规模的地志的印射的说明。这显示出宽大的适用性和运动学的GPS亲戚在高精确的摄影测量的点决心放的经济利益。

简介：Thecharacteristicsofstyrene-acrylicacidcopolymersupportedlanthanidecomplexes(SAACLn)(Ln=La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tin,Yb,andLu)weredescribed.AcomparisonoftheactivitiesofSAAC·Lnwasmade.Itwasfoundthatinthepolymerizationofbutadiene,apeakinactivityappearedatNdandPr,Sin,Euandtheheavylanthanidesexhibitedlowornoactivities.Theeffectsofsomefactorsontheactivitieswerediscussed.Themicrostructureofthepolymersobtainedwithallthelanthanidesintheserieswerethesameandthecontentofcis-1,4polybutadieneattainedwasmorethan98%.

简介：ThesupportedRh-DIOPcomplexeswerepreparedthroughfunctionalizationofseveralmacroporouspolystyreneresinsndwereevaluatedbythehydrogenationofacetamidocinnamicacidinEtOH.Theporeeffectofthematrixeswasdiscussed.

简介：Thetransversevibrationofanaxiallymovingstringsupportedbyaviscoelasticfoundationisanalysedusingthecomplexmodalmethod.TheequationofmotionisdevelopedusingthegeneralizedHamiltonprinciple.Theexactclosed-formsolutionofeigenvaluesandeigenfunctionsareobtained.Thegoverningequationisrepresentedinacanonicalstatespaceformdefinedbytwomatrixdifferentialoperators,andtheeigenfunctionsandadjointeigenfunctionsareprovedtobeorthogonalwithrespecttoeachoperator.Thisorthogonalityisappliedsothattheresponsetoarbitraryexternalexcitationsandinitialconditionscanbeexpressedinmodalexpansion.Numericalexamplesarepresentedtovalidatetheproposedapproach.

简介：Inthispaper,fundamentalequationsandboundaryconditionsofthenonlinearbendingtheoryforarectangularsandwiclplatewithasoftcorearederivedbymeansofthemethodofcalculusofvariations.Thenthenonlinearbendingforasimplysupportedrectangularsandwichplateundertheuniformlateralloadisinvestigatedbyuseoftheperturbationmethodandaquiteaccurateanalyticsolutionisobtained.

简介：(乙烯乙二醇)(木钉)Poly支持了dendrimers与高由分叉的方法装载能力，优秀溶解度和热稳定性作为连接器作为dendrons和tris(hydroxymethyl)aminomethane用2,4,6-trichloro-1,3,5-triazine(TCT)被综合了。新综合支持木钉的G2.0dendrimer让同样大的功能的组10次与全面产量作为商业PEG3400装载能力44.0%。

简介：-Generallythetoeofthebankslopeinfrontofthepile-supportedpierhastobedredgedtomeettherequirementsofwaterdepthfortheberthofships,whilethetopoftheslopeinrearofthepiermustbebackfilledandelevatedtomakeconnectionswithlandtransportation.Thenthenaturalstateofequilibriumoftheslopeisdestroyed,andsomedeformationanddisplacementareunavoidablyinducedinthesoilmasswhichwillexertanundesirableinfluenceonthepilefoundationofthepier.Thisisatypicalproblemoftheinteractionbetweentheso-called"passivepile"andsurroundingsoil,andhasbeenscarcelystudiedintheliteratureofgeotechnicalengineering.Inthispaper,fieldobservation,modeltestsandnumericalanalysisconductedbytheauthorstostudytheinteractionbetweenpile-supportedpierandbankslopearebrieflydescribedandsomepreliminaryresultsarepresented.

简介：Inthispaper,theeffectofcatalyticsupportandsulfidingmethodonthechemicalstateofsupportedCo-MocatalystsisstudiedbyXPS.Aftersulfidationwithin-situmethod,themajorityofmolybdenuminCNTsupportedCoMocatalystistransferredtoaspecieswithaformalchemicalstateMo(Ⅳ)inMoS2phase,andtheresttoMo(Ⅴ)whichconsistsofMocoordinatedbothtoOandS,suchasMoO2S2^2-andMoO3S^2-.IncaseofCoMo/γ-Al2O3catalystsulfidedwithin-situmethod,afractionofmolybdenumistransferredtoformalstateMo(Ⅳ)intheformofMoS2,butthereisstillamountofunreducedMo(VI)phasewhichisdifficulttobesulfided.InCoMo/CNTcatalyricsystemsulfidedwithex-situmethod,Mo(IV)intheformofMoS2isdetectedalongwithaportionofunreducedMo(VI)phase,suggestingthatnotalltheMophasesarereducedandsulfidedbyex-situmethod.AsforCoMo/γ-Al2O3,aportionofmolybdenumissulfidedtointermediatereducedstateMo(V)whichconsistsofMocoordinatedbothtoOandS,suchasMoO2S2^2-andMoO3S^2-,inaddition,thereisstillafractionofunreducedMo(Ⅵ)phase.XPSanalysesresultssuggestthatCNTsupportfacilitatesthereductionandsulfidationofactivespeciestoalargeextent,andthataluminasupportstronglyinteractswithactivespecies,herebyproducingafractionofphasewhichresistscompletesulfiding.CatalyticmeasurementsofcatalystsintheHDSofdibenzothiophene(DBT)showthatCoMo/CNTcatalystsareofhigherHDSactivityandselectivitythanCoMo/γ-Al2O3catalyst,whichisingoodrelationwiththesulfidingbehaviorofthecorrespondingcatalyst.

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简介：Inthispaper,thecloserelationshipamongwavelettransformandquadraturemirrorfilter(QMF)banksandthescattering-matrixofwavedigitalfilter(WDF)isandlyzedindetail.TheparametrizationoforthonormalcompactlysupportedwaveletbasesthathaveanarbitrarynumberofvanishingmomentisobtainedbybuildinganyQMFpairoutofelementaryfactorsofthescatteringmatrix.Inaddition,theoptimizationofparameterisalsopresented.Ascomparison,Someexamplesaboutorthonormalcompactlysupportedwaveletthathasarbitrarynumberofvanishingmomentandthemostnumberofvanishingmomentaregivenrespectively.Thenwegivetheefficientlatticestructuretoimplementthetransform.

简介：Asymmetrichydrisilylationcatalyzedbypolymericthiazolidinerhodiumcatalystswasconducted.Almostthesameopticalyieldshavebeenobtainedwhencomb-shapedpolymericligandsandtheircorrespondingmonomercomplexedrhodiumcataltystswereusedtoasymmetrichydrosilylationofacetophenone.Opticalyieldofchiral1-methylbenzylalcoholreachesashighas71.5%.Temperaturedependenceofenantioselectivehydrosilylationofacetophenonewasdiscussed.