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156 个结果
  • 简介:Carbonemissionisthecurrenthotissueofglobalconcern.Howtoassessvariouscontributingfactorsforcarbonemissionisofgreatimportancetofindoutthekeyfactorsandpromotecarbonemissionreduction.Inthispaper,theauthorconstructsanidenticalequationforcarbonemission,basedontheeconomicaggregate,theeconomicstructure,theefficiencyofenergyutilization,thestructureofenergyconsumption,andthecoefficientofcarbonemission;byapplyingtoLMDIdecompositiontechnology,theauthoranalyzesthecarbonemissionofChinafrom1995to2007atindustriallevelandregionallevel.TheresultsshowthattheexpansionofeconomicaggregateisthemainreasonforChina'srapidlyincreasingcarbonemissionandtheincreaseofenergyutilizationefficiencyisthekeyfactorthatcanholdbacktheincreaseofcarbonemission.Inaddition,thechangeofindustrialstructureorregionalstructureandthechangeoftraditionalenergystructurehavelimitedinfluenceonthecarbonemission,andtheirpotentialshavenotyetbeenexploited.Attheendofthispaper,theauthorproposestheeffortsthatChinashouldmaketoreducecarbonemission.

  • 标签: 碳排放量 分解技术 中国 素分解 能源利用效率 经济结构
  • 简介:1IntroductionWiththeintroductionofcomputersintomainstreammanufacturingactivities,feature-basedgeometricalmodelhasbecomethek...

  • 标签: quasi-feature feature-based MODELING ADJACENT VERTICES area
  • 简介:ThereseearchontherelationbetweenweightedshiftoperatorsonHilbertspacesandotherimportantclassofoperatorsattractedtheattentionofsomemathematicians.Forexample,therelationbetweenweightedshiftoperatorsandsubnormaloperatorshasbeenthoroughlystudiedbyJ.Stampfli,R.GellarandD.A.Herrero,etc.(seereference[1])Butthedecomposabilityofweightedshiftoperatorshasnotyetattractedenoughattentionuptonow.Wemadeinitialresearch

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  • 简介:Domaindecompositionmethodandmultigridmethodcanbeunifiedintheframeworkofthespacedecompositionmethod.Thispaperhasobtainedanewresultontheconvergencerateofthespacedecompositionmethod,whichcanbeappliedtosomenonuniformlyellipticproblems.

  • 标签: Nonlinear problem SPACE DECOMPOSITION method SCHWARZ
  • 简介:由测试melt索引(MI),张力的力量;碎延期比率,polyoxymethylene(POM)的热变老率被分析;比较。表面形态学;POM表面的功能组的类型被观察;由SEM分析了;XPS。结果证明MI在120°C与变老的时间逐渐地珍视增加,显示热氧化分解occurrs慢慢地。在张力的力量上的20天的热变老的效果;打破POM的延期比率不是明显的,证明变老POM是相当一个长过程。在以后105天,裂开的热变老;POM表面上的搽粉的occurr。XPS决心以前显示出样品的C1s系列;在变老以后,包括C-C的二座山峰;公司,当在变老以后C-C的内容减少时;公司的内容增加,显示POM的热变老主要是碎;C-C债券分解。原来的样品的O1s/C1s比率是56.98%;在105天的热变老以后,比率是72.92%。

  • 标签: 聚甲醛 缩醛树脂 热降解性质 表面形态 官能团
  • 简介:Letφbeanormalfunctionon[0,1]andA~1(φ)theBergmanspacewithweightφ(|z|)/(1-|z|~2).AnatomicdecompositiontheoremforA~1(φ)isobtained,andanecessaryandnearly-sufficientconditionisgiventomakeasequenceofpointsinterpolateforA~1(φ).

  • 标签: NORMAL function BERGMAN space DECOMPOSITION HYPERBOLIC
  • 简介:Theauthorsstudyrecursivestructureswith'finitememory'inEuclideanmatricspaceandthemultifractaldecompositionofthecorrespondingfractals.Foranytwopositivenumbersq,β,andsucharecursivestructure,alinearoperatorV~(q,β)infinitedimensionalspaceisdefined.ThemultifractalspectrumisgivenbythespectralradiusofV~(q,β).

  • 标签: 光谱 有限存储器 半径 分解方法
  • 简介:Ultrasound(US)-inducedcavitationisaneffectivewayinoxidizingorganiccontaminantsinwastewatereitherastheindependentoperationunitorincombinationwithotheroxidationmethods.Inthispaper,blackliquorandfiltrateafteracidifyingandsettlingweresonicated.Theeffectofworkingparametersonultrasonicdegradationofblackliquor,suchasdifferentcombinationmethods,frequency,powersupply,initialconcentration,pH,durationtime,ionicstrengthandcatalystwerestudied.Theresultswereasfollows:(1)Attheconditionsof40kHz,100W,4h,pHat6andtemperature30±2℃,utilizingUS/US-H2O2/US-Fenton,weak-orangefiltrateturnedtocolloidwiththeincreaseoftimeandlittlesedimentproducedaftersettling.EspeciallyfiltratecametobemilkwhitecollidesandupperwaterapproachedtonearlyachromaticbyUS-Fenton.ComparedwiththeUS,US-H2O2/US-FentonCOD(Chemicaloxidationdemand)removalratiocanincrease15%,30%respectively.Becauseofmorehydroxylradicalsproducedinthereactionprocess;(2)Attheconditionof100Wand4h,thedegradationefficiencyofblackliquorwasbetterat40kHzoverat20kHz.Moreoverblackliquorcanbebiodegradedeasily.Thosebasedonthatthebigmoleculeofcontaminantsinaqueoussolutioncanbechangedintothelittlemoleculewithultrasound(3)Attheconditionof40kHzand4h,theCODremovalratioofblackliquorwasmorehigherat60Wthanat80W,whiletheremovalratioofCODat60Wwasnearlyclosetotheratioat100W;(4)Theinitialconcentrationofblackliquorinfluencedtheeffectofsonochemicaldegradation;(5)ThevariationofpHhadnoeffectondegradation;(6)Thelongerthedurationtime,thegreatertheremovalratioofCOD.Butthisratioincreasedslowlyafter4h;(7)Adding0.2g/LNaCltochangetheionicstrengthoftheblackliquor,theCODremovalratiocanincrease10%;(8)ThedegradationratesincreasedbythecoexistentcatalystsofTiO2,Co2+andAg+.

  • 标签: 降解反应 超声辐射 有机污染物 废水处理 黑色液体 化学需氧量
  • 简介:为空间地同类的Boltzmann方程的起始的价值问题被考虑。为这个问题的一个确定的数字计划被三个方法的使用开发未知功能以及碰撞积分的分解。在上这样,算法的几乎线性复杂性被完成。一些数字例子被举。[从作者抽象]

  • 标签: BOLTZMANN方程 分解 线性复杂度 初值问题 碰撞积分 未知函数
  • 简介:Aclassofnonconformingfiniteelementsisconsideredinthispaper,whichiscontinuousonlyatthenodesofthequasi-uniformmesh.Weshowthatthereex-istsanessentialestimatewhichindicatestheequivalencerelation,independentofthemeshparameter,betweentheenergiesofthenonconformingdiscreteharmonicextensionsindifferentsubdomains.Theessentialestimateisofgreatimportanceintheanalysisofthenonoverlappingdomaindecompositionmethodsappliedtosecondorderpartialdifferentialequationsdiscretizedbynonconformingfiniteele-ments.

  • 标签: EQUIVALENCE HARMONIC extensions ELLIPTIC priori quasi
  • 简介:Atrecent,Hourgatetgaveadomaindecompositionalgorithmforellipticproblemswhichcanbeimplementedinparallel.Manynumericalexperimentshaveillustrateditsefficiency.Inthepresentpaper,weapplythisalgorithmtosolvethediscreteparabolicproblems,analyseitsconvergenceandshowthatitsconvergenceraleisabout(1-2p+σp2)whichisnearlyoptimalandindependentoftheparameterτ,whereστO((1+H)(1+ln(H/h))2).0

  • 标签: Domain DECOMPOSITION TRACE AVERAGE OPERATOR CONVERGENCE
  • 简介:在这篇论文,我们为极端夸张操作员的力量构造Almansi分解。构造将以一个建设性的方法被做。

  • 标签: 双曲函数 解聚 经营者 分解