简介：这份报纸学习随机的部分微分方程的一个班的Galerkin有限元素近似。在空间的discretization被一个标准连续有限元素方法和错误估计被获得的几乎最佳的顺序做。discretization及时经由piecewise常数，不连续的Galerkin方法和Laplace变换卷绕旋转照被完成。我们为semidiscrete和充分分离的计划给强壮的集中错误估计。证明为相应确定的问题基于错误估计。最后，数字例子被执行验证理论结果。

简介：Thewaveletpackettransformisusedforthedamagedetectionofoffshoreplatforms.Whensomedamageoccurs,thedynamicresponseparametersofthestructurewillshiftsubtly.However,insomecases,thedynamicparameters,suchasdynamicresponse,arenotsensitive,anditisverydifficulttopredicttheexistenceofdamage.Thepresentpaperaimstodescribehowtofindsmalldamagebytheuseofwaveletpackettransform.Asthewaveletpackettransformcanbeusedtoquicklyfindthesingularityoftheresponsesignalondifferentscales,theaccelerationsignalofadamagedoffshoreplatforminthetimedomainistransformedthroughthewaveletpacket.ExperimentalresultsshowthattheDaubechies4wavelettransformcanbeusedtodetectdamage.

简介：节省水的灌溉方法逐渐地在温室或塑料电影房子为蔬菜耕作被使用了。然而，有关土壤磷(P)行为上的节省水的灌溉方法的效果有有限信息。在这个实验，滴下并且表面下的灌溉方法被使用，与是的沟灌溉方法控制，在MollicGleysols。在整个深度的土壤P分发被灌溉方法显著地影响。全部，Olsen，器官、无机的P内容比在心土(20–30，30–40，40–50和50–60厘米)在表层土(0–10和10–20厘米)是更大的。在整个0–60厘米层在下面的OlsenP内容滴下并且表面下的灌溉处理在沟灌溉处理下面是比那低的。然而，全部、器官、无机的P从20～60厘米满足在下面滴灌溉处理比或近到在沟灌溉处理下面的那些高，但是比在沟灌溉处理下面在表面下的灌溉处理下面是更低的。在表面下的灌溉处理下面，在0–10厘米层的全部、器官、无机的P的内容是78.0%，1.3%和3.7%比那些大在10–20厘米层分别地。但是在10–20厘米层的OlsenP内容是5.7%比那大在0–10厘米层。这些建议那土壤P行为能被土壤水管理操作到某程度。

简介：Regionaldevelopmentisacourseofaccumulationbasedonmanyfactors,whichisdirectlyrelatedtoresourcesutilizationandconversion.Andmaterialwealthproductionandaccumulationembodytheoutcomeofregionaldevelopment.Thus,focusingonmaterialwealth,regionaldevelopmentcanbeevaluatedfromresourcesandperspectiveofresourcesconversion.Takingtheinfrastructurallevel,transportationaccessibilityandeconomicdevelopmentlevelintofullaccount,theconceptof'material-baseddevelopment'waspresentedandthematerial-baseddevelopmentindex(MDI)modelwasestablished.ByusingtheMDImodel,geographicinformationsystemtechnologyandmathematicmethods,thisarticlethencalculatedMDIofeachcountyandprovinceofChinain2005andsystematicallyevaluatedthematerial-baseddevelopmentofChinaatcountyandprovincialscales,soastobringsomescientificreferencesandpolicy-makingsupportstothepopulationdevelopmentfunctionorientedzoningandpopulationspatialdistributionplanningofChina.Theresultshowedthat:(1)Atcountyscale,thematerial-baseddevelopmentofcountieswithinChinain2005wassignificantlydifferent,inwhichtherewere1876countiesbelongingtothemid-levelmaterial-baseddevelopmentandaccountedfor78.10%ofthetotal.Thenumbersofhigh-levelandlow-levelcountieswere144and382andaccountedfor6.00%and15.90%respectively,demonstratingaspindleshapeingeneral.Thespatialdistributionofmaterial-baseddevelopmentwasunbalanced,anditwasmuchbetterinsoutheasternpartofthelineof'Daxinganling–Yinshan-Liupanshan–southeastedgeofQinghai–TibetPlateau'thanthatofnorthwestern.Furthermore,therewerealsodifferencesofthesub-indexbetweendifferentmaterial-baseddevelopmentlevels.Therefore,fordifferentregions,keyissuesandmeasuresadaptabletolocalconditionshouldbeprioritizedandtakeninordertorealizeregionalbalancedevelopment.(2)Atprovincialscale,therewasalsosignificantdifferen

简介：Thispaperisconcernedwiththeerrorbehaviourofone-legmethodsappliedtosomeclassesofone-parametermultiplestiffsingularlyperturbedproblemswithdelays.WederivetheglobalerrorestimatesofA-stableone-legmethodswithlinearinterpolationprocedure.

简介：AKindofdirectmethodsispresentedforthesolutionofoptimalcontrolproblemswithstateconstraints.Thesemethodsaresequentialquadraticprogrammingmethods.AteveryiterationaquadraticprogrammingwhichisobtainedbyquadraticapproximationtoLagrangianfunctionandLinearapproximationstoconstraintsissolvedtogetasearchdirectionforameritfunction.ThemeritfunctionisformulatedbyaugmentingtheLagrangianfunetionwithapenaltyterm.Alinesearchiscarriedoutalongthesearchdirectiontodetermineasteplengthsuchthatthemeritfunctionisdecreased.Themethodspresentedinthispaperincludecontinuoussequentialquadraticprogrammingmethodsanddiscreatesequentialquadradeprogrammingmethods.

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简介：Thepaperisconcernedwithstronglynonlinearsingularlyperturbedbound-aryvalueproblemsinonedimension.Theproblemsaresolvednumericallybyfinite-differenceschemesonspecialmesheswhicharedenseintheboundarylayers.TheBakhvalovmeshandaspecialpiecewiseequidistantmeshareanalyzed.Forthecentralscheme,errorestimatesarederivedinadiscreteL~1norm.Theyareofsecondorderanddecreasetogetherwiththeperturbationparameterε.Thefourth-orderNumerovschemeandtheShishkinmesharealsotestednumerically.Numericalresultsshowε-uniformpointwiseconvergenceontheBakhvalovandShishkinmeshes.

简介：在一个双性人上认为时间泛音是电磁的飞机波浪事件在R3的周期的结构。周期的结构分开二个同类的区域。在结构内的medimn是chiral并且非同类。在这篇论文，在周期的接口上与一个方法或不可分的方程在chiral媒介联合有限元素方法的变化明确的表达被学习。well-posedness连续并且discretized问题被建立。为联合的一致集中模型问题的变化近似被获得。

简介：在强风和影响负担下面造结构的进步倒塌在整个世界吸引了大注意。进步倒塌分析为对进步倒塌造结构爆炸并且影响负担的一个经济、安全的图案是必要的。因为进步倒塌的灾难的性质和构造或翻新大楼抵抗它的潜在地高的费用，进步倒塌分析方法是可靠的，是必要的。为工程师，他们执行进步倒塌评估的方法论不必仅仅精确、简明，而且容易快被使用并且工作。因此，许多研究人员一直在花大量在最近开发可靠、有效、直接的进步倒塌分析方法的努力。在现在的纸，在文学可得到的当前的进步倒塌分析方法被考察。他们的适用性，适用性和可靠性被讨论。我们为在强风负担下面的增强的具体框架的进步倒塌分析的最近的建议新方法也被介绍。

简介：Inrecentyears,theassessmentofproprioceptivefunctionhasreceivedincreasedattentioninclinicalandmotorskillresearch.Thisisnotsurprisinggiventhegrowingbodyofscientificevidenceontheimportanceofproprioceptiveinformationforcontrollingnearlyallfacetsofhumanmovement;fromstandingtoperforminghighlyskilledmovementpatterns

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简介：Inthisstudy,weuseinexactnewtonmethodstofindsolutionsofnonlinear,nondifferenti-ableoperatorequationsonBanachspaceswithaconvergencestructure.ThistechniqueinvolvestheintroductionofageneralizednormasanoperatorfromalinearspaceintoapartiallyorderedBanachspace.Inthiswaythemetricpropertiesoftheexaminedproblemcanbeanalyzedmoreprecisely.Moreover,thisapproachallmvsustoderivefromthesametheorem,ontheonehand,semi-localresultsofKantorovich-type,andontheotherhand,globalresultsbasedonmono-tonicityconsiderations.Furthermore,iveshowthatspecialcasesofourresultsreducetothecorrespondingonesalreadyintheliterature.Finally>ourresultsareusedtosolveintegralequationsthatcannotbesolvedwithexistingmethods.

简介：Inthispaperwestudytheconvergenceofadaptivefiniteelementmethodsforthegeneralnon-affineequivalentquadrilateralandhexahedralelementson1-irregularmesheswithhangingnodes.Basedonseveralbasicingredients,suchasquasi-orthogonality,estimatorreductionandD(o|¨)flermarkingstrategy,convergenceoftheadaptivefiniteelementmethodsforthegeneralsecond-orderellipticpartialequationsisproved.OuranalysisiseffectiveforallconformingQ_melementswhichcoversboththetwo-andthree-dimensionalcasesinaunifiedfashion.

简介：我们在场切开的Hermitian和skew-Hermitian(HSS)为与non-Hermitian和积极definite/semi-definite矩阵解决大稀少的连续Sylvester方程的重复方法。HSS重复方法的无条件的集中被证明，集中率上的上面的界限被导出。而且到计算花费了的还原剂，我们建立HSS重复方法的不精确的变体并且详细分析它的集中性质。数字结果证明HSS重复方法和它的不精确的变体是为连续Sylvester方程的这个类的有效、柔韧的解答者。[从作者抽象]

简介：TheJacobiandGauss-Seidelalgorithmsareamongthestationaryiterativemethodsforsolvinglinearsystemofequations.Theyarenowmostlyusedasprecondition-ersforthepopulariterativesolvers.Inthispaperageneralizationofthesemethodsareproposedandtheirconvergencepropertiesarestudied.Somenumericalexperimentsaregiventoshowtheefficiencyofthenewmethods.

简介：Superconvergenceofthemixedfiniteelementmethodsfor2-dMaxwellequationsisstudiedinthispaper.Twoorderofsuperconvergentfactorcanbeobtainedforthek-thNedelecelementsontherectangularmeshes.

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简介：这研究由于地震刺激在结构的倒塌的上下文为大、复杂的结构的系统的混合模拟检验集成方法的表演。目标申请未必为即时测试，但是相当为包含大规模物理基础的模型和高度非线性的数字模型。四案例研究被介绍并且讨论。在第一案例研究，也就是，包括二个广泛地使用的方法的集成计划的精确性与重复的改正数字修改了含蓄的Newmark的版本(反复)并且切开操作员(非反复)通过纯数字模拟被检验。第二案例研究介绍模拟为反复的集成方法就各种各样的时间步和重复的改正数字而言与二个上述的集成方法重复了的10混血儿的结果。在这些测试的物理基础由single-degree-of-freedom(SDOF)组成有提供可重复的highlynonlinear行为包括的可替代的钢赠券的伸臂列破裂类型力量和僵硬降级。以防学习三，有重复的改正数字的含蓄的Newmark被申请1:2的混合模拟放大包括一个相对复杂的非线性的数字基础的钢时刻框架。最后，一个更复杂的数字基础被构造联合到一个1:2规模钢严肃框架的一个混合模型的一个片刻框架的一个非线性的计算模型考虑。最后二案例研究在一样的porotype结构和步和重复的固定数字仔细在预告测验模拟被检验的时间的选择上被进行。产生失衡力量被用作一个索引追踪平衡错误并且预言模拟的精确性和稳定性。

简介：AbstractInthisarticlewebrieflystudiedthefictitiousdomainmethodsforsteadyandnonsteadyNavier-StokesequationsbasedonPenaltyfactorεontheextendeddomain.Theconvergenceu?→uinH01（Ω）dandL2（Ω）d（d=2,3）isgivenaswellasp?→pinL02（Ω）.