简介:ThispaperintroducesthedefinitionoftheOrthogonalTypeNodeConfigurationanddiscussesthecorrespondingmultivariateLagrange,HermiteandBirkhoffinterpolationproblemsinhighdimensionalspaceRs(s>2).ThisnodeconfigurationcanbeconsideredtobeakindofextensionoftheCrossTypeNodeConfiguration[1],[2]inR2tohighdimensionalspaces.AndtheMixedTypeNodeConfigurationinRs(s>2)isalsodiscussedinthispaperinanexample.
简介:<正>Newkindsofstronglyzero-dimensionallocalesareintroducedandcharacterized,whicharedifferentfromJohnstone’s,andalmostallthetopologicalpropertiesforstronglyzero-dimensionalspaceshavethepointlosslocalicforms.Particularly.theStone-Cechcompactificationofastronglyzero-diluensionallocaleisstonglyzero-dimensional.
简介:Thispaperpresentsanewboundaryintegralequatiònfortwo-dimensionalelasticitywiththestresscomponentσijtitjasoneoftheboundaryvalues,wheretiisthedirectioncosineofthetangentontheboundary.ThisformofBEMhasanadvantageinthatthestresscomponentσijtitjontheboundarycanbecalculateddirectlyfromthenumericalsolution.Thepresentformulationforplaneproblemsusestwokernels,theoneislogarithmicallysingularandtheotheris1/rsingular.Theeffectivenessoftheapproachisalsodiscussedthroughtestexamples.
简介:Inthispaper,alargeclassofndimensionalorthogonalandbiorthognalwaveletfilters(lowpassandhighpass)arepresentedinexplicitexpression.Wealsocharacterizeorthogonalfilterswithlinearphaseinthiscase.Someexamplesarealsogiven,includingnonseparableorhogonalandbiorthogonalfilterswithlinearphase.
简介:让B~α={B~α(t),t∈R~N}一(N,d)有林中小丘索引α∈(0,1)的部分Brownian运动。由非使用强壮的本地人B~α的宿命论,我们证明B~α的图象的一致Hausdorff尺寸结果的形式肯定什么时候N>αd。我们的结果为一个维的Brownian运动考夫曼扩大那些。
简介:Partorientationisoneoftheimportantfactorsinmanufacturingwiththreedimensionalprinting(3DP)ofrapidprototypingsystem.Theminimumbuildingtime,beingachievedbythepart’sminimumbuildingheightandminimumwidthin3DP’sydirection,issetastheobjectiveofoptimizingthepartorientation.Geneticalgorithmisadoptedtofindtheminimumbuildingheightofpartsandthenergodicsearchingisusedtogettheminimumwidthofpartinydirection.Acorrespondingprogramforoptimizingpartorientationin3DPwasdeveloped.Testsshowtheproposedapproachiseffectiveandfast.
简介:AcontravariantbilinearpairingKoneveryM(ρ)×M(ρθ)isdeterminedanditisprovedthatM(ρ)isirreducibleifandonlyifKisleftnondegenerate,ItisalsoprovedthateverycyclicpointedmoduleisaquotientofsomeVerma-likepointedmodule;moreoverifitisirreduciblethenitisaquotientoftheVerma-likepointedmodulebytheleftkernelofsomebilinearpairingK.Incasethemassfunctionissymmetric,thereexistsabilinearformonM(ρ),Itisprovedthatunitarypointedmodulesareintegrable,Inaddition,acharacterizationofthemassfunctionsofKac-Moodyalgebrasisgiven,whichisageneralizationofthefinitedimensionalLiealgebrascase.
简介:Asemi-implicitandEulerian-Lagrangianfinitedifferencemethodforthree-dimensionalshallowflowhasbeenextendedtoamorecompletesystemofequationsincorporatingsecond-momentturbulenceclosuremodelandtransportequationsofsalinityandtemperature.Thesimulationforfloodinganddryingofmudflatshasbeenimproved.ThemodelisappliedtoXiamenwaters.Basedonextensivesurveydata,waterlevelelevation,temperatureandsalinityfieldalongtheeasternopenboundaryandattheJiulongRiverinletsandrunoffsareanalyzed,specifiedandcalibrated.Thecomputedresultsshowgoodagreementwiththemeasureddata,reproduceflooding,emergenceoflargeandcomplexmudflatregion.
简介:<正>WeprovethatinanyinfinitedimensionalTeichmüllerspace,thereexistsaminimalgeodesiclyingintwodistinctgeodesicdisks.
简介:这篇论文的目的是在3-dimensional上在equivariant操作之中学习关系小的封面。作者为这些操作得到三个公式。作为应用,在面向的3-dimensional的构造的Nishimura鈥檚定理在所有3-dimensional的构造的小封面和L眉-于鈥檚定理小封面被改进。而且为3-dimensional2花托manifolds的构造,它被看那,所有操作能被使用equivariant手术获得。关键词Equivariant外科-有限的组行动-小盖子-3-dimensional歧管-3-dimensional简单polytope2000苏布杰克特先生分类57M50-57M60-57S17-52B10工程由复旦大学支持了,通过朝鲜(NRF)的国家研究基金会的Fujyukai基金会和基本科学研究节目由教育部资助了,科技(号码2009-0063179)。
简介:Inthispaper,anovelmethodforThreedimensionalactivesoundfieldcancellationisproposed.Theoptimumsoundcancellationsindifferentsituationsmaybeobtained.Anarraywhoseelementslieonasetofringsplacedonthesurfaceofascatteringobjectisconsideredasthedevice.Itisquitepossibletocancelthescatteredsoundfieldtoanyarbitrarylevelovereitherthewholespaceorapartialareaofinterest,aslongasthenumberofthearrayelementsissufficient.
简介:Inthispaper,thetwodirnensionalStancu-MuhlbachoperatorandBetaoperatorareintroduced,andtheirapproximationpropertiesarediscussed.
简介:ThecurrentGIScanonlydealwith2-Dor2.5-Dinformationontheearthsurface.Anew3-Ddatastructureanddatamodelneedtobedesignedforthe3-DGIS.Thispaperanalyzesdiverse3-Dspatialphenomenafromminetogeologyandtheircomplicatedrelations,andproposesseveralnewkindsofspatialobjectsincludingcross-section,columnbodyanddigitalsurfacemodeltorepresentsomespecialspatialphenomenaliketunnelsandirregularsurfacesofanorebody.Anintegrateddatastructureincludingvector,rasterandobject-orienteddatamodelsisusedtorepresentvarious3-Dspatialobjectsandtheirrelations.Theintegrateddatastructureandobject-orienteddatamodelcanbeusedasbasestodesignandrealizea3-Dgeographicinformationsystem.
简介:Rod-likeZnOparticlesweresynthesizedviaasol-gelmethodbyaddingethylenediamine(EDA)tothereactionsystemofZn(Ac)2·2H2OandH2C2O4·2H2O.ThecrystalphaseandmorphologyoftheproductswerecharacterizedbyXRD(X-raypowderdiffractometer)andTEM(transmissionelectronmicroscope).Rod-likeZnObelongstothehexagonalWurtzitesystem,withdiametersandlengthsofabout20-200nmand0.2-1.5m,respectively.Experimentalresultsshowedthatthemorphologyofnano-ZnOcanbecontrolledbymodulatingthequantitiesofEDAaddedintothereactionsystemandthatEDAplaysanimportantroleintheformationofrod-likeZnOparticles.Thegrowthmechanismoftherod-likenanoZnOwasbrieflydiscussed.Theproposedfacile,reproducible,effectiveandlow-costsynthesispromisesfuturelarge-scalepreparationofnanostructuredZnOforapplicationinnanotechnology.