简介：用常压气相沉积法镀膜制得的二氧化钛薄膜为催化剂，以紫外灯为光源，研究了亚甲基蓝的光催化降解。实验表明：镀膜时基片温度为２００℃；用铜线作为底物，在染料溶液中加Ｈ２Ｏ２，可提高光催化活性。更多还原

简介：ThenewH.264videocodingstandardachievessignificantlyhighercompressionperformancethanMPEG-2.AstheMPEG-2ispopularindigitalTV,DVD,etc.,bandwidthormemoryspacecanbesavedbytranscodingthosestreamsintoH.264intheseapplications.Unfortunately,thehugecomplexitykeepstranscodingfrombeingwidelyusedinpracticalapplications.Thispaperproposesanefficienttranscodingarchitecturewithasmartdownscalingdecoderandafastmodedecisionalgorithm.Usingtheproposedarchitecture,hugebufferingmemoryspaceissavedandthetranscodingcomplexityisreduced.Performanceoftheproposedfastmodedecisionalgorithmisvalidatedbyexperiments.

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简介：Thecontrollableactivethermo-atmospherecombustor(CATAC)hasbecomeautilizableandeffectivefacilitybecauseitbenefitstheopticaldiagnosticsandmodeling.Thispaperpresentsthemodelingresearchoftheauto-ignitionandflamesoftheH2/N2(H2/CH4/N2,orH2/H2O2/N2)mixtureonaCATAC,andshowscurvesvaryingwithtemperaturesofauto-ignitiondelay,theheightofthesiteofauto-ignitionofliftedflames,andflamelift-offheight.Theresultsofauto-ignitiondelayandthelift-offheightarecomparedtheexperimentalresultstovalidatethemodel.Aturningpointcanbeseenoneachcurve,identifiedwithcriteriontemperature.Itcanbeconcludedthatwhentheco-flowtemperatureishigherthanthecriteriontemperature,theauto-ignitionandliftedflameofthemixturearenotstable.Conversely,belowthecriteriontemperature,themixturewillauto-igniteinastablefashion.Stabilizationmechanismsofauto-ignitionandliftedflamesareanalyzedintermsofthecriteriontemperature.

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简介：因为他们的优异光同质，和高透明性，聚合物在抽和放射激光的范围是为激光染料的一种吸引人的主人。共聚物通常有更高的损坏阀值和更好的相片稳定性比单音聚合物。稳固的染料样品与1-基于有2-hydroxypropylmethacrylate(HPMA)的甲基methacrylate(MMA)的共聚物做了，3-，5-，7-，8-pentamethyl-2，6-diethylpyrromethene-BF2(PM567)被准备。系列和样品的放射激光的性质被学习。基于垄断merpolymethyl比作样品methacrylate(PMMA)，提高的斜坡效率和相片稳定性在共聚物被获得。最高的斜坡效率是45.1%，并且相片稳定性的将近单一的增加被获得。4390抽的脉搏的最长有用的一生以10Hz的重复率每脉搏象183mJ一样高与泵精力被介绍。结果显示稳固的染料媒介的激光表演能极大地作为主机与HPMA用MMA的共聚物被增加。

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简介：Inthisstudy,apoly(etherblockamide)(Pebax1657)compositemembraneappliedforCO2capturewaspreparedbycoatingPebax1657solutiononpolyacrylonitrile(PAN)ultrafiltrationmembrane.Ethanol/watermixturewasusedasthesolventofPebaxandtheeffectsofethanol/watermassratiosandPebaxconcentrationonthepermeationpropertiesofcompositemembranewerestudied.Toenhancethecompositemembranepermeance,thegutterlayer,madefromreactiveaminosiliconecrosslinkingwithpolydimethylsiloxane(PDMS),wasdesigned.Theinfluenceofcrosslinkingdegreeofthegutterlayeronmembraneperformancewasinvestigated.Asaresult,aPebax/aminoPDMS/PANmultilayermembranewithhexaneresistancewasdeveloped,showingCO2permeanceof350GPUandCO2/N2selectivityover50.Theblendofpolyethyleneglycoldimethylether(PEG-DME)withPebaxascoatingmaterialwasstudiedtofurtherimprovethemembraneperformance.AfterbeingcombinedwithPEG-DMEadditive,CO2permeanceofthefinalPebax-PEG-DME/amino-PDMS/PANcompositemembranereached400GPUabovewithCO2/N2selectivityover65.

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简介：Weprovideanewclassofinteriorsolutionofa(2+1)-dimensionalanisotropicstarinFinchandSkeaspacetimecorrespondingtotheBTZblackhole.WedevelopthemodelbyconsideringtheMITbagmodelEOSandaparticularansatzforthemetricfunctiongrrproposedbyFinchandSkea[M.R.FinchandJ.E.F.Skea,Class.Quantum.Grav.6(1989)467].Ourmodelisfreefromcentralsingularityandsatisfiesallthephysicalrequirementsfortheacceptabilityofthemodel.

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简介：Zn2SnO4(ZTO)nanowireswithauniquedendriticnanostructureweresynthesizedviaasimpleone-stepthermalevaporationandcondensationprocess.ThemorphologyandmicrostructureoftheZTOnanodendritehavebeeninvestigatedbymeansoffieldemissionscanningelectronmicroscopy(SEM),x-raydiffraction(XRD)andhigh-resolutiontransmissionelectronmicroscopy(HRTEM).SEMobservationrevealedtheformationofbranchednanostructuresandshowedthateachbranchexhibitedauniqueperiodicstructureformedbyarowofoverlaidrhombohedraofZTOnanocrystalsalongtheaxisofthenanobranch.HRTEMstudiesdisplayedthatthebranchesgrewhomoepitaxiallyassingle-crystallinenanowiresfromtheZTOnanowirebackbone.ApossiblegrowthmodelofthebranchedZTOnanowiresisdiscussed.Tosuccessfullypreparebranchedstructureswouldprovideanopportunityforbothfundamentalresearchandpracticalapplications,suchasthree-dimensionalnanoelectronics,andopto-electronicnanodevices.

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简介：Startingfromthevariableseparationsolutionobtainedbyusingtheextendedhomogenousbalancemethod,anewclassofcombinedstructures,suchasmulti-peakonandmulti-dromionsolution,multi-compactonandmultidromionsolution,multi-peakonandmulti-compactonsolution,forthe(2+1)-dimensionalNizhnik-Novikov-Veselovequationarefoundbyselectingappropriatefunctions.Thesenewstructuresexhibitnovelinteractionfeatures.Theirinteractionbehaviorisverysimilartothecompletelynonelasticcollisionsbetweentwoclassicalparticles.

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简介：描述表面在nanocrystals熄灭孤立的离子中心的一个模型基于在做的离子和熄灭中心的nanocrystalline表面之间的精力转移被建议。熄灭的率在nanocrystal取决于离子的位置，在非选择的刺激下面的因此腐烂曲线通常是非指数的。与这个模型一起计算的腐烂曲线在对T-4(1)的好同意>(6)在ZnS的A(1)排放:Mn2+nanocrystals。