简介：TherecurrencealgorithmisgivenforthecalculationofNUAHB-splinesinthespaceSn+1=span{sinht,cosht,tn-3,...,t2.t,1}(n≥3).ThecaseofNUAHB-splinebasesofloworderwithmultipleknotsequencesisstudied.ThelimitingcasesofUAHB-splinesarerecoveredwhenshapeparametersa's→0+and+∞.ThenthecorrespondingNUAHB-splinecurveisdefinedanditsmainpropertiessuchasshape-preservingpropertiesareinvestigated.

简介：Non-uniformalgebraic-trigonometricB-splinessharesmostofthepropertiesasthoseoftheusualpolynomialB-splines.Buttheyarenotorthogonal.Weconstructanorthogonalbasisforthen-order(n≥3)algebraic-trigonometricsplinespaceinordertoresolvethetheoreticalproblemthatthereisnotanexplicitorthogonalbasisinthespacebynow.MotivatedbytheLegendrepolynomials,wepresentanovelapproachtodefineasetofauxiliaryfunctions,whichhavesimpleandexplicitexpressions.Thentheproposedorthogonalsplinesaregivenasthederivativesoftheseauxiliaryfunctions.

简介：Thispaperpresentsasimpleapproachforimprovingtheperformanceoftheweightedessentiallynonoscillatory(WENO)finitevolumeschemeonnon-uniformgrids.ThistechniquereliesonthereformulationofthefifthorderWENO-JS(WENOschemepresentedbyJiangandShuinJ.Comput.Phys.126:202–228,1995)schemedesignedonuniformgridsintermsofonecell-averagedvalueanditsleftand/orrightinterfacialvaluesofthedependentvariable.Theeffectofgridnon-uniformityistakenintoconsiderationbyaproperinterpolationoftheinterfacialvalues.Onnonuniformgrids,theproposedschemeismuchmoreaccuratethantheoriginalWENO-JSscheme,whichwasdesignedforuniformgrids.Whenthegridisuniform,theresultingschemereducestotheoriginalWENO-JSscheme.Inthemeantime,theproposedschemeiscomputationallymuchmoreefficientthanthefifth-orderWENOschemedesignedspecificallyforthenon-uniformgrids.Anumberofnumericaltestcasesaresimulatedtoverifytheperformanceofthepresentscheme.

简介：这份报纸处理一个模式III界面的裂缝题目到反飞机应力和在里面飞机电场。分析专注于从不一致的ferroelectric-ferroelastic领域由一个电场切换调节破裂坚韧。电的装载改变不对称的切换地区的尺寸。采用重量功能方法，我们获得韧化为的电子上依赖的开关静止并且变得界面的伪静电干扰分别地裂开。多域答案为杆得非、杆得充分的铁电体composites被导出。数字结果在批评应用压力紧张因素调节的电场上被介绍。研究提供方法由改变电场优化铁电体composites的破裂性质。

简介：有不同的片插头角度的离心的扇子的流动特征基本上为一把矩形的casing扇子在稳定、不稳定的模拟上被讨论。impellers的片插头角度是35?

简介：这篇论文在一个接近音速的轴的压缩机转子(NASA转子37)的空气动力学的表演上论述轴的不一致的尖端清理的效果的数字调查。在转子经过以内的三维的稳定的流动地以17188.7rpm的设计车轮速度与0.356公里的资料尖端清理被模仿。模拟结果与测量结果很好一致，它验证了数字方法。然后，在转子经过以内的三维的稳定的流动地与不同轴的不一致的尖端清理分别地被模仿。计算结果证明最佳的轴的不一致的尖端清理能改进压缩机表演，当效率和压缩机的压力比率被增加时。流动机制是轴的不一致的尖端清理能削弱尖端漏旋涡，在界面层刮倒低精力的液体并且减少流动阻塞和尖端损失。

简介：Anintegratedcouplingelementconsideringwheel-railinterfaceforanalyzingthedynamicresponsesofvehicle-rail-bridgeinteractionsystemwithanon-uniformcontinuousbridgeispresented.Thegoverningequationsoftheinteractionsystemareestablishedfirst,andthesolutionprocedureandassemblymethodofthecouplingelementaredemonstrated.Finally,theaccuracy,efficiencyandfunctionoftheintegratedcouplingelementaretestedusingtwonumericalexamples.Theinfluencesofdifferentcombinationsofrailandbridgeelementlengthinthecouplingelementonthesolutionareinvestigated,andtheeffectsofdifferentrailirregularitiesonthedynamicresponsesarediscussed.

简介：Inordertosolvethemagneto-hydrodyna-mics(MHD)problems,itisneccessarytocombineMaxwell'sequationswithfluidmechanicsequations.But,underthefirstorderapproximationthemasspointmotivationequationsandelectromagneticbasiclawsare

简介：这个工作学习在横梁的免费结束由非一致地分布式的连续负担和集中的负担组成的受到联合装载的苗条、非棱柱的伸臂横梁的大偏转。伸臂的材料被假定非线性地有弹性。在在张力、压缩的领域的应力和紧张之间的不同非线性的关系被考虑。数字答案的精确性被从以前的研究并且与一个实验室实验把他们与结果作比较评估。

简介：Inlostpaperofmagneto-hydrodynamicinstabilityanalysisofliquidmetalfreesurfacejetflow(PartⅠ),themagneto-hydrodynamicinstabilitywasanalyzedforthejetflowinatransversenon-uniformmagneticfield,BT.But,asallknown,fortherealconditionsofliquidmetallimiter-divertorplasma-facingcomponentsareintoroidalandpoloidalfields.So,wetrytoanalyzethemagneto-hydrodynamicinstabilityofthejetflow(herebyonlyforcircularshapecrosssectionjetflow)inthezoneofnon-uniformmagneticfields,

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简介：TheaimofthispaperistogiveupperboundsofthenormoftheoperatorandassociatederrorforaLagrangeinterpolationproblembyC~1quadraticsplines.Thedomainisrectangularandthetype-2triangulationisnon--uniform.Moreoverthelocationofdatapointsallowsaverysimplecompationoftheinterpolant.

简介：Sufficientconditionshavebeenobtainedsothatallsolutionsofadifferentfourthorderdifferentialequationareboundedanduniformlybounded.

简介：这份报纸在3D学习非自治的不可压缩的非牛顿的液体的轨道asymptotic行为围住的领域。在适当拓扑学，作者为对统一轨道空间起作用的翻译semigroup证明一致轨道引起注意的人的存在。

简介：这份报纸为最好的制服处理Kolmogorov标准coapproximation和强烈独特的最好的一致coapproximation。在最好的一致近似和最好的一致coapproximation之间的一些关系被获得。一些平等和最好的一致coapproximation被连接。

简介：WeproveapointwisecharacterizationresultforcombinationsofBernsteinpolynomials.ThemainresultofthispaperincludesanequivalencetheoremofH.BerensandG.G.Lorentzasaspecialcase.

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简介：LetMbeaconvexChebyshevsubsetofauniformlyconvexanduniformlysmoothBanachspace.ItisprovedthatthemetricprojectionP_MofXontoMisuniformlycontinu-ousoneveryboundedsubsetofX.Moreover,aglobalandexplicitestimateonthemodulusofcontinuityofthemetricprojectionisobtained.

简介：BymeansoftheHermitianmetricandChernconnection,Qiu[4]obtainedtheKoppelman-Leray-Norguetformulafor(p,q)differentialformsonanopensetwithC~1piecewisesmoothboundaryonaSteinmanifold,andundersuitableconditionsgavethesolutionsof■-equationonaSteinmanifold.Inthisarticle,usingthemethodofRangeandSiu[5],undersuitableconditions,theauthorscomplicatedlycalculatetogivetheuniformestimatesofsolutionsof■-equationfor(p,q)differentialformsonaSteinmanifold.