简介：WeconsideranIterated-SubspaceMinimization(ISM)methodforsolvinglarge-scaleunconstrainedminimizationproblems.Ateachmajoriterationofthemethod,atwo-dimensionalmanifold,theiteratedsubspace,isconstructedandanapproximateminimizeroftheobjectivefunctioninthismanifoldthendetermined,andasymmetricrank-oneupdatingisusedtosolvetheinnerminimizationproblem.

简介：D-η-珍视向量的功能的合适的prequasi-invexity被描绘借助于(弱)将近集合的凸状和密度。在更弱的假设下面，某等价物为D-调节η-合适的prequasi-invexity被导出。

简介：Inthisarticle,wewillinvestigatethepropertiesofiterativesequencefornon-expansivemappingsandpresentseveralstrongandweakconvergenceresultsofsuccessiveapproximationstofixedpointsofnon-expansivemappingsinuniformlyconvexBanachspaces.Theresultspresentedinthisarticlegeneralizeandimprovevariousonesconcernedwithconstructivetechniquesforthefixedpointsofnon-expansivemappings.

简介：Theparallelalgorithmsofiterateddefectcorrectionmethods(PIDeCM’s)areconstructed,whichareofefficiencyandhighorderB-convergenceforgeneralnonlinearstiffsystemsinODE’S.AsthebasisofconstructinganddiscussingPIDeCM’s.aclassofparallelone-legmethodsisalsoinvestigated,whichareofparticularefficiencyforlinearsystems.

简介：在这篇论文，我们在R~d在一些non-tensorproduct领域上建议著名Fourier方法，包括单一、所谓超级单一它由组成(d+1)!笨人lices。作为二个例子，在2-D和3-D大小写一超级单一分别地作为平行等边六角形和平行四边的十二面体被显示出。我们扩大了大多数概念和传统的Fourier方法的结果在上多变量盒子例如Fourier基础系统，傅里叶级数，分离Fourier变换(DFT)和它的快算法(快速傅里叶变换)在上超级单一，以及概括正弦和余弦变换(DST，DCT)并且相关快算法在上一单一。在在这些域上的一个像拉普拉斯算符的操作符的基本直角的系统和特徵函数之间的Therelationship被探索。

简介：没有标记数据的摆动，错误减小，集中和optimality为散开方程为适应混合有限元素方法(AMFEM)被分析。第一，伪错误，即应力变量误差的和和放大误差评估者，与在二个连续的适应的环之间的一个固定因素被显示出到还原剂，直到摆动。第二，AMFEM的集中加流动错误的分叉关于伪错误被获得。最后，伪最佳的集中率为全部的错误被建立，即加数据摆动的压力变量错误。

简介：在这份报纸，趋于增加的本地人和适应地精制的网孔上的添加剂multilevel方法与高度不连续的系数为秒顺序被认为椭圆形的问题。为前提multilevel的系统，我们由使用抽象Schwarz理论学习它的光谱的分发。除了一些小特征值，preconditioned系统的光谱关于系数和网孔尺寸的jumps伪一致地被围住，这被证明。集中率前提multilevel结合方法被显示出关于jumps和网孔伪最佳的坡度。数字实验被介绍说明理论调查结果。

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简介：Theeffectofsystemmismatchesonanadaptivelinearconstrainedgeneralizedsidelobecanceller(LC-GSC)isdiscussedinthispaper.Basedonthearraygainindex,twoclassicsystemmismatches,thedirectionofarrival(DOA)mismatchandthemismatchesarisingfromarraydisturbance,arestudied,respectively.Toobtaintheeffectivemethodsforcompensatingforthesystemmismatches,weanalyzetheperformanceoftheimprovedLC-GSCwiththediagonalloadingandadditionalconstraints(suchasthedirectionalconstraintsandderivativeconstraints).Thecomputersimulationsshowthatthetechniquesofdiagonalloadingandadditionalconstraintscaneffectivelycompensateforthesystemmismatches.Thelossofarraygainscanbecontrolledwithin3dBinthepresenceof20%ofarraydisturbancesorDOAmismatchwhenthesignal-to-noiseratioislessthan10dB.Theanalysisillustratesthattheproposedcompensationmethodsarevalidandfeasible.

简介：Thispaperfirstpresentsthestabilityanalysisoftheoreticalsolutionsforaclassofnonlinearneutraldelay-differentialequations(NDDEs).Thenthenumericalanalogousresults,ofthenaturalRunge-Kutta(NRK)methodsforthesameclassofnonlinearNDDEs,aregiven.Inparticular,itisshownthatthe(k,l)-algebraicstabilityofaRKmethodforODEsimpliesthegeneralizedasymptoticstabilityandtheglobalstabilityoftheinducedNRKmethod.

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简介：Forthetransientbehaviorofasemiconductordevice,themodifiedmethodofcharacteristicswithalternating-directionfiniteelementproceduresfornonrectangularregionisputforward.Sometechniques,suchascalculusofvariations,isoparametrictransformation，patchapproximation,operator-splitting,characteristicmethod,symmetricalreflection,energymethod,negativenormestimateandapriorestimatesandtechniques,areemployed.Inthenonrectangularregioncase,optimalorderestimatesinL^2normarederivedfortheerrorintheapproximationsolution.Thusthewell-knowntheoreticalproblemhasbeenthoroughlyandcompletelysolved.

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简介：Automaticextractionofroadandlinearstructurefromremotesensingimagesisaveryimportantproblem.Thispaperanalysesseveralexistingmethodsoftheautomaticroadandlinearstructureextractionbyusingsomemulti-spectralremotesensingimagesacquiredfromdifferentspatialresolutions,districtsandroadcharacteristics.Theiradvantagesanddisadvantageshavebeengeneralized.

简介：-Measuringmulti-directionalwaveswiththewavegaugearrayisoneofthefundamentalandeasilyrealisedmethods.Inthispaper,thewavegaugearrayisdescribedandtheeffectsofthegaugespacing,thearrayorientations,etc.ofthethreearrayarrangements,i.e.,lineararray,T-typearrayandpentagonarray,ontheresolutionofthedirectionalspreadingofwaves,areinvestigatedexperimentally.Thisstudycanbeusedasareferenceintheexperimentalstudyandthefieldmeasurementofdirectionalwaves.

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简介：Nanoscaleplasmonic系统小空间规模把光频率的优点与那些相结合，围绕由利用表面电浆子的强壮的地监禁的常规photonic系统的限制。由于到nanoscale的这小型化，电子显微镜学技术是选择的自然研究方法。最近的年看见了联合电子和光子的使用启用表面电浆子的崭新的看法以的很多种电子显微镜学技术的开发联合空间，精力，和时间分辨率。这评论试图由构画出他们适用性的各自的试验性的领域并且加亮他们特别地适用于plasmonics的互补力量和限制从一个试验性的观点提供这些不同途径的比较调查。