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153 个结果
  • 简介:SNDisasphericalnon-magneticdetectoroperatingsince1996atVEPP-2Melectron-positroncolliderinNovosibirsk,SNDisperforminganupgradeofitssubsystems,electronics,andsoftwareforthenextrunatVEPP-2000,PresentFortran-basedofflineprogramswillbereplacedwiththeobject-orientedframework,whichsupportssimulation,reconstructionandanalysisactivities,Newframeworkexploitstheexperienceobtainedintheworkwiththecurrentofflineandsupportsorextendsitsessentialfeatures.Themainframeworkconceptisamodule,whichisabasicprocessingunitconsumingsomedataandproducingnewdata.Everymodulecanbeparameterizedduringruntime.Formalizeddescriptionofthemodulesisusedbytheframeworksequencerfortheselectionandorderingofminimalsubsetofmodulesforanygiventask.Datapersistencyservicesaremadesufficientlyabstracttoallowimplementationfordifferentpersistencytechnologies.Prsentlythereisanimplementationforthesequentialfileswithpackeddata.Theframeworkprovidesaninterfaceforscriptinglanguages.Togetherwithacustomexpressionparserthisgivesasupportforextensiblerun-timehistogramming.ThefunctionalprototypeoftheframeworkwasimplementedinPythonlanguageandprovedtheconceptsoftheproject.CurrentlythisprototypeisbeingreimplementedinC++.

  • 标签: 正负电子对撞机 SND脱机结构 探测器
  • 简介:Thedualrandommodelsaboutthelifeinsuranceandsocialpensioninsurancehavereceivedconsiderableattentionintherecentarticlesonactuarialtheoryandapplications.Thispaperdiscussesageneralkindofincreasingannuitybasedonitsforceofinterestaccumulationfunctionasageneralrandomprocess.Thedualrandommodelofthepresentvalueofthebenefitsoftheincreasingannuityhasbeenset,andtheirmomentshavebeencalculatedundercertainconditions.

  • 标签: 二重随机模型 社会养老金 保险精算 统计分析
  • 简介:Inthispaper,thedualmixedmethodforanunilateralproblem,whichisthesimplifiedmodellingofscalarfunctionforthefriction-freecontactproblem,isconsidered.Thedualmixedproblemisintroduced,theexistenceanduniqenessofthesolutionoftheproblemarepresented,anderrorboundsO(h^3/4)andO(h^3/2)areobtainedforthedualmixedfiniteelementapproximationsofRaviart-Thomaselementsfork=0andk=1respectively.

  • 标签: 单向问题 有限元逼近 纯量函数 接触问题
  • 简介:Thispapergivesanewdualproblemfornondifferentiableconvexprogrammingandprovesthepropertiesofweakdualityandstrongdualityandoffersanecessaryandsufficientconditionofstrongduality.

  • 标签: DUALITY CONVEX GOULD POLAR 云物 feasible
  • 简介:Thepurposeofthispaperistopresentsomedualpropertiesofdualcomodule.Itturnsoutthatdualcomodulehasuniversalproperty(cf.Theorem2).Since(()*,()°)isanadjointpair(cf.Theorem3),somenicepropertiesoffunctor()°areobtained.FinelyTheoram4providesthatthecotensorproductisthedualofthetensorproductby(MAN)°≌M°□A.N°.Moreover,theresultHomA(M,N)≌Coma.(N°,M°)isprovedforfiterelatedmodulesM,NoverarefiexivealgebraA.

  • 标签: HOPF代数 泛对偶余模 函子 张量积 伴随对 佳性质
  • 简介:Apotentialdualinhibitor(4)forexogenousabsorptionandendogenicsynthesisofcholesterolwasdesignedbasedontheconjugationoftheβ-lactampharmacophoreofezetimibeandtheδ-lactonepharmacophoreofstatins.Themergerofezetimibeandstatin4wassynthesizedfromp-hydroxybenzaldehydethroughaten-steproute.1HNMRanalysisshowedexistenceoffourpairsofenantiomers(5.7:5.7:1:1,molarratio).Andcompound4wasfoundtolowertotalglucose(TG)levelinratserumviaahigh-cholesterolandhigh-fatfeedingexperiment.

  • 标签: 他汀类药物 抑制剂 合并 NMR分析 胆固醇 内源性
  • 简介:Theuniquecharacteristicsofgas-solidstwo-phaseflowandfluidizationintermsoftheflowstructuresandtheapparentbehaviorofparticlesandfluid-particleinteractionsarecloselylinkedtophysicalpropertiesoftheparticles,operatingconditionsandbedconfigurations.Fluidizedbedsbehavequitedifferentlywhensolidproperties,gasvelocitiesorvesselgeometriesarevaded.Anunderstandingofhydrodynamicchangesandhowthey,inturn,influencethetransferandreactioncharacteristicsofchemicalandthermaloperationsbyvariationsingas-solidcontact,residencetime,solidcirculationandmixingandgasdistributionisveryimportantfortheproperdesignandscale-upoffluidizedbedreactors.Inthispaper,ratherthanattemptingacomprehensivesurvey,weconcentrateonexaminingsomeimportantpositiveandnegativeimpactsofparticlesizes,bubbles,clustersandcolumnwallsonthephysicalandchemicalaspectsofchemicalreactorperformancefromtheengineeringapplicationpointofviewwiththeaimofforminganadequateconceptforguidingthedesignofmultiphasefluidizedbedchemicalreactors.

  • 标签: 均匀特征 气-固二相流 流化结构 流体-粒子作用 物理性质
  • 简介:RadioactiveIonBeamLineinLanzhou¥ZhanWenlong;GuoZhongyan;LiuGuanhua;YinQuanmin;ZhouJianqunandWangYifangAsanewfrontierinnu...

  • 标签: LANZHOU
  • 简介:在这篇论文,我们介绍同类的Besov类型空格MiloudAssal电子邮件:Miloud.Assal@fst.rnu.tn全文预览(小,大)[2]。Bourdaud,G.:RéalisationdesespacesdeBesovhomogènes。Arkiv地席,26,4154(1988)[3]。Triebel,H.:功能空格II的理论,Birkhaüs嗯,(1992[4]。杨,D.C.:分数维图形上的Besov空格的一些应用程序。ActaMathematicaSina,Engish系列,21(5),12091218(2004)[5]。杨,D.C.,Yangsheng,H.:Besov和Triebel-Lizorkin的一些新空格在同类的空格打字。StudiaMathematica,156(1),6797(2003)[6]。杨,D.C.:在空格嵌入Besov空格和Triebel-Lizorkin空格的定理哦同类的类型。在中国的科学,系列A,46(2),12091218(2003)[7]。Bahouri,H.,Gérard,P.,徐,C.J.:EspacesdeBesovet评价deStrichartzgénéraliséessurlegroupede海森堡。杂志d'AnalyseMathématique,82,93118,(2000)[8]。Betancor,J.J.,Rodríguez方山,L.:在Besov-Hankel空格。数学。Nachr,171,517(1995)[9]。Assal,M.,Hacen,B.:LaguerreHypergroup上的概括Besov类型空格。Annales马特马蒂丘斯·布莱塞·帕斯卡,12,117145(2005)[10]。Bami,M.L.:L1(K,ω的Semisimplicity)加权的可交换的HypergroupK。ActaMathematicaSinica,英语系列,24(4),606610(2008)。[11]。本森,C.,Jenkins,J.,Ratcliff,G.:海森堡组上的Schwartz功能的球形的变换。功能的分析的杂志,154,379423(1998)[12]。Nessibi,M.M.,Trimèche,K.:由使用的Laguerre亢奋的组上的氡变换的倒置概括了小浪。数学分析和申请的杂志,208,337363(1997)[13]。Kortas,H.,Sifi,M.:Lévy-Khintchine公式和与Laguerre和bessel功能联系的双卷绕旋转半组。潜在的分析,15,4358(2001)[14]。Faraut,J.,Harzallah,K.�

  • 标签: Besov型空间 超群 广义 谐波分析 非均匀 空格
  • 简介:ThispaperpresentsthedualbasesforanewfamilyofgeneralizedBallcurveswithapositionparameterK,whichincludestheBeziercurve,generalizedSaid-Ballcurveandsomeintermediatecurves.Usingthedualbases,therelativeMarsdenidentity,conversionformulasofbasesandcontrolpointsofvariouscurvesareobtained.

  • 标签: BEZIER曲线 Marsden恒等式 SAID-BALL曲线 基底变换
  • 简介:Thispaperdescribestheinverstigationdevotedtoestablishsuitableweightsinafeed-forwardneuralnetworkrealizingthenarrow-bandfilteringmapinthecaseofadaptivelineenhancement(ALE)bytheutilityoftheoptimumcommonlearningratebackpropagation(OCLRBP)algorithm.Itisfoundthatafeed-forwardnetworkwith64linearinputandoutputneurons,and8oddsigmoidneuronsinthehiddenlayer,i.e.an(64→8→64)architecture,couldestablishthespecificinput-outputfunctioninthecaseofrelativelylowsignal-to-noiseradio.Onlyisaninputsignalconsistingofmixedperiodicandbroad-bandcomponentsavailabletothenetworksystem.Afterlearning,boththe"fanning-in-connectionpatterns",eachofwhichconsistsofweightsfanningintoahidden-neuronFromalltheoutputsofinput-neurons,andthe"fanning-out-connectionpatterns",eachofwhichconsistsofweightsfanningoutfromahidden-neurontoalltheinputsofoutput-neurons,aretunedtotheperiodicsignals.Thenonline

  • 标签: NEURAL networks BACK-PROPAGATION ADAPTIVE SIGNAL PROCESSING
  • 简介:Inthispaper,wederivethebi-Hamiltonianstructureofamulti-componentCamassa–Holmsystem,whichassociateswiththemulti-componentAKNShierarchyandmulti-componentKNhierarchyviathetri-Hamiltoniandualitymethod.Furthermore,thespectralproblemsofthedualhierarchiesmaybeobtained.

  • 标签: bi-Hamiltonian STRUCTURE DUAL HIERARCHIES Camasssa
  • 简介:Stabledual-modesemiconductorlaserscanbeappliedforthephotonicgenerationofmicrowaveandterahertzwaves.Inthispaper,themodecharacteristicsofavariablecurvaturemicroresonatorareinvestigatedbyatwodimensionalfiniteelementmethodforrealizingstabledual-modelasing.Themicroresonatorfeaturesasmoothboundaryandthesamesymmetryasasquareresonator.Asmallvariable-curvaturemicroresonatorwitharadiusof4μmcansupportthefundamentalfour-bouncemodeandthecircular-likemodesimultaneously,withqualityfactorsuptotheorderof10~4and10~5,respectively.ThedualmodesinthephasespaceofthePoincarésurfaceofsectionsdistributefarfromeachotherandcanmaintainenoughstabilityfordual-modelasing.Furthermore,therefractiveindexandwaveguidecanmodulatethedual-modewavelengthdifferenceandqualityfactorsefficientlythankstothespatiallyseparatedfieldsofthesetwomodes.

  • 标签:
  • 简介:Inthispaper,weprovethefollowingresults:1)AnormalbasisNoverafinitefieldisequivalenttoitsdualbasisifandonlyifthemultiplicationtableofNissymmetric;2)ThenormalbasisNisself-dualifandonlyifitsmultiplicationtableissymmetricandTr(α~2)=1,whereαgeneratesN;3)AnoptimalnormalbasisNisself-dualifandonlyifNisatype-Ⅰoptimalnormalbasiswithq=n=2orNisatype-Ⅱoptimalnormalbasis.

  • 标签: 最优正规基 有限场 均衡性 代数学
  • 简介:AmutuallyorthogonalsystemofrationalSomeapproximationresultsareestablishedfunctionsonthewholelineisintroduced.Asanexampleofapplications,amodifiedLegendrerationalspectralschemeisgivenfortheDiracequation.Itsnumericalsolutionkeepsthesameconservationasthegenuinesolution.Thisfeaturenotonlyleadstoreasonablenumericalsimulationofnonlinearwaves,butalsosimplifiestheanalysis.Theconvergenceoftheproposedschemeisproved.Numericalresultsdemonstratetheefficiencyofthisnewapproachandcoincidewiththeanalysiswell.

  • 标签: 勒让德函数 光谱法 排列 近似值 单位脉冲函数