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127 个结果
  • 简介:Weconsidersomeclassesofgeneralizedgapfunctionsfortwokindsofgen-eralizedvariationalinequalityproblems.Weobtainerrorboundsfortheunderlyingvari-ationalinequalitiesusingthegeneralizedgapfunctionsundertheconditionthatthein-volvedmappingFisg-stronglymonotonewithrespecttothesolution,butnotnecessarilycontinuousdifferentiable,evennotlocallyLipschitz.

  • 标签: 广义变分不等式问题 误差界 差距 职能 连续可微 强单调
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  • 简介:Thispaperpresentsanalysesofionflowcharacteristicsandiondischargepulsesinasphere-groundplateelectrodesystem.Asaresultofvariationinelectricfieldintensityintheelectrodegap,theionflowstowardselectrodesgeneratenon-uniformdischargingpulses.Inspectionofthesepulsesprovidesusefulinformationonionicstreamkinetics,theeffectivethicknessofioncoveraroundelectrodes,andthetimingofioncloudsdischargepulsesequences.Afinitedifferencetimedomain(FDTD)basedspace-chargemotionsimulationisusedforthenumericalanalysisofthespatio-temporaldevelopmentofionicflowsfollowingthefirstTownsendavalanche,andthesimulationresultsdemonstrateexpansionofthepositiveionflowandcompressionofthenegativeionflow,whichresultsinnon-uniformdischargepulsecharacteristics.

  • 标签: 电极间隙 离子流 平板 放电脉冲 流量 时域有限差分
  • 简介:由直接diagonalizing脱氧核糖核酸酸(DNA)的梯子模型的Hamiltonian分子,状态的密度被获得。DNA作为一个售票员表现,这被发现什么时候内部链跳跃比小两次intrachain不那样,DNA作为一个半导体表现。

  • 标签: DNA分子 强势配对 间隙 分子物理学
  • 简介:AGaP/morinnanocompositematerialwasprepared,andthekeyfactorsaffectingtheluminescentpropertiesofthematerialwereinvestigated.IntenseluminescencewasobservedafterthecompositereactionbetweenGaPnanocrystalsandmorin.TheluminescenceoftheGaP/morincompositematerialisintensifiedremarkablywiththeratioofmorintoGaPnanocrystalsincreasing,butthepeakwavelengthremainsunchanged.WiththesizeofGaPparticlesdecreasing,theluminescentintensityofthecompositeincreasesandthepeakwavelengthblue-shifts.Thepossiblereasonforthisphenomenonwasdiscussed.

  • 标签: 纳米复合材料 GAP 发光特性
  • 简介:Anewsmoothgapfunctionfortheboxconstrainedvariationalinequalityproblem(VIP)isproposedbasedonanintegralglobaloptimalitycondition.Thesmoothgapfunctionissimpleandhassomegooddifferentiableproperties.TheboxconstrainedVIPcanbereformulatedasadifferentiableoptimizationproblembytheproposedsmoothgapfunction.Theconditions,underwhichanystationarypointoftheoptimizationproblemisthesolutiontotheboxconstrainedVIP,arediscussed.Asimplefrictionalcontactproblemisanalyzedtoshowtheapplicationsofthesmoothgapfunction.Finally,thenumericalexperimentsconfirmthegoodtheoreticalpropertiesofthemethod.

  • 标签: 箱约束变分不等式 差距 平滑 全局最优性条件 变分不等式问题 摩擦接触问题
  • 简介:Recurrenteventsdataandgaptimesbetweenrecurrenteventsarefrequentlyencounteredinmanyclinicalandobservationalstudies,andoftenmorethanonetypeofrecurrenteventsisofinterest.Inthispaper,weconsideraproportionalhazardsmodelformultipletyperecurrentgaptimesdatatoassesstheeffectofcovaxiatesonthecensoredeventprocessesofinterest.Anestimatingequationapproachisusedtoobtaintheestimatorsofregressioncoefficientsandbaselinecumulativehazardfunctions.Weexamineasymptoticpropertiesoftheproposedestimators.Finitesamplepropertiesoftheseestimatorsaredemonstratedbysimulations.

  • 标签: 风险模型 多类型 间隙时间 比例 循环 复发间隔
  • 简介:有害生物综合治理技术(Integratedpestmanagement,IPM)对于茶园实施良好农业规范(GoodAgriculturalPractices,GAP)有很大促进作用。阐述了如何应用IPM技术促进政和工夫GAP茶园建设,使政和工夫红茶的清洁化生产技术更加深入,使茶叶农残问题从根本上得到解决,并促进政和茶业的发展。

  • 标签: IPM技术 政和工夫 GAP
  • 简介:AbstractPurpose:Secondary displacement represents a frequent complication of conservative treatment of fractures, particularly of the distal radius. The gap space between skin and cast may lead to a certain degree movements and this increased mobility might favor redisplacement. The aim of this study was to develop a new 3D method, to measure the gap space in all 3 geometrical planes, and to validate this new technique in a clinical setting of distal radius fractures.Methods:This study applies 3D imaging to measure the space between plaster and skin as a potential factor of secondary displacement and therefore the failure of conservative treatment. We developed and validated a new methodology to analyze and compare different forearm casts made of plaster of Paris and fiberglass. An unpaired t-test was performed to document differences between the investigated parameters between plaster of Paris and fiberglass casts. The significance level was set at p< 0.05.Results:In a series of 15 cases, we found the width of the gap space to average 4 mm, being slightly inferior on the radial side. Comparing the two different casting materials, plaster of Paris and fiberglass, we found a significantly larger variance of space under casts made of the first material (p=0.39). A roughness analysis showed also a markedly significantly higher irregularity of the undersurface of plaster of Paris as compared with fiberglass.Conclusion:This study allows for a better understanding of the nature of the "gap space" between cast and skin and will contribute to develop and improve new immobilization techniques and materials.

  • 标签: Forearm Wrist casts Radius fractures Conservative treatment Gap space
  • 简介:处理四波浪的混合(FWM)在里面一四水平<啜class=“a-plus-plus”>85Rb原子系统,试验性地在这篇论文示威了,被二共存过程包括。一个人是排放信号由于提高经由电磁地导致的透明性(EIT)非线性。因为创造photonic乐队差距(PBG),其它是探查横梁的布拉格思考,它被线性、第三顺序的非线性的危险性影响。而且,我们证明了不同试验性的参数能显著地与灵活地控制的PBG影响测量信号。这些研究为在产生FWM处理理解基本机制被发现有用。

  • 标签: 四波混频 光子带隙 调制 电磁感应透明 发射信号 强非线性
  • 简介:STUDIESONTHEGAPJUNCTIONALINTERCELLULARCOMMUNICATIONOFHUMANNASOPHARYNGEALCARCINOMA CELLSANDTHEEFFECTOFRIIHanLiqun韩立群;GaoJin高进;...

  • 标签: GAP JUNCTIONAL INTERCELLULAR communication(JGIC) RETINOIDS INTERCELLULAR
  • 简介:Anovelcompactelectromagneticbandgap(EBG)structureconstructedbyetchingtworeversesplitrings(RSRs)andinsertinginterleavingedge(IE)onthepatchofconventionalmushroom-likeEBG(CML-EBG)isinvestigated.SimulateddispersiondiagramsshowthattheproposedEBGstructurepresentsa13.6%sizereductioninthecenterfrequencyofthebandgap.TwocomparisonshavebeencarriedoutfortheanalysisoftheeffectoftheRSRsandIEconfiguration.Then,asampleofthisnovelEBGisfabricatedandtested,furtherexperimentaldataagreewellwiththesimulatedresults.Thus,thisEBGstructuremakesagoodcandidatetodecreasemutualcouplingincompactmicrostrippatcharray.

  • 标签: 电磁带隙结构 紧凑型 设计 IE浏览器 EBG 中心频率
  • 简介:Transmissionofelasticwavesthroughamicrogapbetweentwosolidswithconsiderationoffrictionalcontactisinvestigated.ByusingtheFourieranalysistechniqueandthecorrectivesolutionmethod,thenonlinearboundaryproblemisreducedtoasetofalgebraicequations.Numericalresultsexhibitthelocationsandextentsofseparation,slip,andstickzones,theinterfacetractions,andtheenergypartition.Theeffectsofgapwidth,frictionalcoefficients,andtheincidentangleonthewavetransmissionarediscussedindetail.Theresultsshowthathigherharmonicsaregeneratedduetothelocalcontact/slipattheinterface.

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