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500 个结果
  • 简介:LetL=L0+VbethehigherorderSchrdigertypeoperatorwhereL0isahomogeneousellipticoperatoroforder2mindivergenceformwithboundedcoefficientsandVisarealmeasurablefunctionasmultiplicationoperator(e.g.,including(-?)m+V(m∈N)asspecialexamples).Inthispaper,assumethatVsatisfiesastronglysubcriticalformconditionassociatedwithL0,theauthorsattempttoestablishatheoryofHardyspaceHpL(Rn)(0

  • 标签: Hardy空间 椭圆算子 薛定谔 高阶 HL 可测函数
  • 简介:本文用实函数控制非线性泛函与非线性算予的新方法定义Γ—泛函与Γ—算子,推广了[1][2][3]的一条一致有界定理

  • 标签: φ—赋范空间 Γ—泛函 Γ—算子
  • 简介:给出了两种插值算子,并研究了它们在和L2πp和Lp(R)L空间上的逼近阶.用实数α阶的积分模给出逼近度.更多还原

  • 标签: 插值 逼近 三角多次式 整函数
  • 简介:<正>Inthispaper.basedonlargedeviationformulasestablishedinstrongertopologygeneratedbyH(?)ldernorm,weobtainthefunctionallimittheoremsforC-Rincrementsofk-dimensionalBrownianmotioninH(?)ldernorm

  • 标签: Large deviation formulas k-dimensional Brownian motion
  • 简介:Theregionaroundthedouble-closedshellnucleus208Pbhasbeenparticularlyusefulinstudyingresidualinteractions.ThelowspinisomersoftheisotopesintheN=127,Z=8387regionhavebeenidentifiedinlastfiftyyearsexcept213Rn[1??4].Inourrecentimplantation–r-acorrelationstudyoftheisotopesaroundtheN=126shellclosure,anewrayisobservedbetweentheimplantationsandthedecaysof213Rn,whichcouldbeduetothedepopulationoftheisomerof213Rnmentionedabove.

  • 标签: Implantation-r-a CORRELATION METHOD
  • 简介:部分地,聪明切割的过程,缺陷由尺寸描绘了的结合的效果和在切开前后的内部压力上的2纸被使用破裂力学模型学习。有大尺寸的结合的缺陷是容易的引起缺点生长的严重偏差,这被发现,当切开时,导致薄层的一个非转移的区域。在结合的缺陷的内部压力是很小的一个实际聪明切割的过程,大界面的缺点总是在切开的过程支持缺点生长。同时,增加结合的缺陷的内部压力减少在切开前的缺点生长和它的偏差。stiffener限制的松驰的机制被建议澄清结合的缺陷的效果。而且,当结合的缺陷是在场的时,切开的过程的进步被分析。在切开以后,有大尺寸和高内部的压力的那些结合的缺陷在高温度的退火期间为薄电影的blistering是脆弱的。

  • 标签: 粘结缺陷 智能剥离 断裂力学分析 分裂过程 内部压力 技术
  • 简介:Theauthorsconsiderednon-convolutiontypeoscillatorysingularintegraloperatorswithreal-analyticphases.AuniformboundednessfromHKptoHpofsuchoperatorsisestablished.TheresultisfalseforgeneralCphases.

  • 标签: 凡口 口置 加州
  • 简介:Amatrixissaidtobestableiftherealpartsofalltheeigenvaluesarenegative.Inthispaper,foranymatrixAn,wediscussthestabilitypropertiesofT.Chan’spreconditionercU(An)fromtheviewpointofthenumericalrange.AnapplicationinnumericalODEsisalsogiven.

  • 标签: 稳定性 数值域 本征值 边值定理
  • 简介:Thispaperaimstoinvestigatethehydrodynamicbehaviorofatensionlegplatform(TLP)whenthetendonconnectionanglesarevariedat90°,70°,50°,and30°.ThreedifferenttypesofloadingconditionsareappliedtotheTLP.Conditionsinclude100-yearhurricanestormperiod,regularwavesandnoloading.TheTLPdisplayedmajorresponseinthepitchdegreeoffreedom.Amaximumreductionof14%inpitchrotationisachievedwhen100-yearhurricanestormconditionsareappliedtotheTLP.Thisoccurredin0°loadingsat30°tendonconnectionangleascomparedto90°tendonconnectionangle.Reductioninpitchrotationisalsoachievedintheregularwaveloadings.Amaximumof9%inpitchrotationisachievedduring0°waveloadingat30°tendonconnectionangleascomparedto90°.Whenthetendonconnectionangleisreducedfrom90°to30°,thenaturalfrequencyoftheTLPincreasedbothinpitchandyawdegreesoffreedomby2.55%and2.40%,respectively.

  • 标签: TENDON CONNECTION IRREGULAR WAVES Regular WAVES
  • 简介:量计算在最近的年里经历了快速的开发。由于可伸缩性上的限制,个人量计算机在不久的将来仍然似乎稍微不现实。为平常的用户的第一台实际的量计算机是可能的在云上。然而,仅当安全被保证,云计算的采纳是可能的。同构的加密是允许计算没有解密他们,在加密数据上被表现的一个密码的协议,因此遮蔽计算很好被适合。这里,我们首先在IBM云量计算机站台上使用了同构的加密。在我们的实验,当保护我们的隐私时,我们成功地为线性方程实现了一个量算法。这示范打开一条可行路径到云量信息技术的开发的下一个阶段。

  • 标签: 计算平台 同态加密 IBM 实验 量子计算机 量子信息技术
  • 简介:Astandardconservationformisderivedinthispaper.ThehyperbolicityofHelbing’sfluiddynamictrafficflowmodelisproved,whichisessentialtothegeneralanalyticalandnumericalstudyofthismodel.Onthebasisofthisconservationform,alocaldiscontinuousGalerkinschemeisdesignedtosolvetheresultingsystemefficiently.Theevolutionofanunstableequilibriumtrafficstateleadingtoastablestop-and-gotravelingwaveissimulated.Thissimulationalsoverifiesthatthemodelistrulyimprovedbytheintroductionofthemodifieddiffusioncoefficients,andthushelpstoprotectvehiclesfromcollisionsandavoidetheappearanceoftheextremelylargedensity.

  • 标签: 交通流模型 流体动力学 保护 GALERKIN 模拟验证 数值研究
  • 简介:AdualSshapedmicrostripantennawitharealisticfeedisproposedforgenerationoftiltedbeamradiationpatternpertainingforbeamsteeringapplications.Toachievethis,fourfeedingpointsarelocatedatadistanceof5.6mmfromtheantennacentre.Thesefeedingpointswhenexcitedonebyonegeneratefourtiltedbeamsinfourdifferentspacequadrants,thusyieldingabeamsteerableantenna.Importantly,sincetheproposedantennaissymmetricalinthestructure,allthefourtiltedbeamshavethesameradiationpatterncharacteristics.Afurtherenhancementoftheantennabandwidthisalsoachievedusing100-μmcapacitivecouplingbetweenthefeedandtheantennastrip.

  • 标签: 光束 天线 交换技术 应用软件
  • 简介:Weprovideanalyticalsolutionstotheproblemsofacircularbendingofabeaminplanestrainandthetorsionofanon-circularcross-sectionbeam,thebeamsobeyingasecond-gradientelasticitylawproposedbytheauthor,followingaprevioussuggestionofdell'Isolaetal.(2009).Themotivationwastofindbenchmarkanalyticalsolutionsthatcanservetograspthephysicalfoundationsofsecondgradientelasticitylawsforheterogeneousmaterials.TheanalyticalsolutionofthecircularbeamproblempresentstheadditionaladvantagetoestablishsomenicepropertiesontheunknownsecondgradientelasticmoduliintroducedbyEnakoutsa(2014)modelandtheclassicalelasticityconstantsforbothincompressibleandcompressibleheterogeneouselasticmaterials.Aframeworktofindtheelasticmoduliofthenewmodelisalsoproposed.

  • 标签: 梯度材料 广义虎克定律 应用 弹性定律 材料弹性常数 弹性模量
  • 简介:Underthehypothesesthatthesecond-orderandthird-orderderivativesofafunctionarebounded,anestimateoftheradiusoftheconvergenceballofOstrowski-Traub’smethodisobtained.Anerroranalysisisgivenwhichmatchestheconvergenceorderofthemethod.Finally,twoexamplesareprovidedtoshowapplicationsofourtheorem.

  • 标签: 收敛球 误差分析 三阶导数 球半径 收敛阶 相匹配
  • 简介:TheauthorconsiderstheFeigenbaum'sfunctionalequationf^P(λx)=λf(x)foreachp≥2.TheexistenceofevenunimodalC^1solutionstothisequationisdiscussedandafeasiblemethodtoconstructsuchsolutionsisgiven.

  • 标签: 功能方程 连续单峰解 偶数单峰解 交叉迭代
  • 简介:现在的工作被奉献给在冻结的magnetar赋予以对一个电场直角的一个极端强壮的磁场的外壳中演变的波色子的学习,两个都由周期的功能描述了。我们沿着盎士通过一个维的潜在的障碍讨论量通道过程。KleinGordon方程的答案以Mathieu为可计算出来的粒子的精力范围,正在转弯从的功能被表示对指数地沿着盎士种模式摆动。在JeffreysWentzelKramersBrillouin框架以内,传播系数在不稳定性范围的中间为粒子动量被计算。

  • 标签: 超强磁场 玻色子 地壳 磁星 相对论 隧道
  • 简介:ThispaperisconcernedwiththediffusiveNicholson’sblowfliesequationwithnonlocaldelayincorporatedasanintegralconvolutionovertheentirepasttimeuptonowandthewholeone-dimensionalspatialdomainR.Assumethatthedelaykernelisastronggenerickernel.Bythelinearchaintechniquesandthegeometricsingularperturbationtheory,theexistenceoftravellingfrontsolutionsisshownforsmalldelay.

  • 标签: 延迟积分方程 非局部时滞 苍蝇 扩散 波前解 几何奇异摄动理论