简介：Theshrinkagecharacteristicsofexpansiveconcretefilledsteeltube(CFST)areanalyzed,Coldshrinkage,creepandautogenousshrinkageareconsideredasthemainreasonsofcausingCFSTcontraction.InaccordancewiththeshrinkagecharacteristicsofexpansiveCFST,akindofenergy-storeddelayedexpansiveagentisexploited,whichcannotonlycompensatetheshrinkageofthecoreconcreteineverystages,butalsomakeCFSTexpandaccordingtothedelayedexpansionmechanism.Astheresult,theprestresslosswillbereducedandexpansiveenergywillbeutilizedeffectively.

简介：LetamovingplaneMPoverafixedplaneFPoccupyfourdifferentpositions.Eachpairofsuchpositionsisassociatedwithacenterofrotationcalledpolesothatwehavea6-poleconfiguration.Asanillustrationofourgeneralmethodofmechanicaltheoremprovinganddiscovering,wediscussinthepresentpaperinsomederailscertaintheoremsconnectedwithsuchaconfiguration.

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简介：ThecontrollingandinfluencingeffectsofthejointactionofplatessurroundingChinaonstrongearthquakesinChinesemainlandarediscussed,andthecharacteristicsofseismicactivitiesintheWestofChinaandneighboringregionsarefurtherstudied.TheresultsshowthattheseismicactivityintheWestofChinaandneighboringregionsnotonlyhasthecharacteristicsofhightideandlowtidealternationbutalsohasthecharacteristicsofrisinginoneregionwhilefallinginanother,andtheriseandfailofseismicityareinsomeproportion.TheabovecharacteristicsareusefulforthepredictionofmainbodyregionofstrongearthquakesinChinesemainland,especiallyforthejudgementoftheendingtimeofthehighfideperiod.

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简介：OnJanuary17,2012,NationalPopulationandFamilyPlanningCommission(NPFPC)convenedthesumming-upmeetingonitsworkin2011.Itsummarizedthedevelopment

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简介：在实际调查采样，nonresponse现象是不可避免的。怎么把归咎于错过数据是一个重要问题。在文学有几个归罪方法。在这份报纸，当PPSWR采样被使用时，为在一致反应下面的失踪的数据的比率的平均数的归罪方法被用于一个有限人口平均数的评价。把归咎于的评估者不管反应机制不管模型以及在比率模型下面在相应反应机制下面是有效的。近似不偏的大折刀变化评估者也被介绍。所有这些结果被扩大到不一致的反应的盒子。模拟研究显示出建议评估者的好表演。关键词归罪-条款nonresponse-大折刀变化评估者-不一致的反应-PPSWR采样先生(2000)题目分类62D05由中国的国家自然科学基础支持了(资助Nos.70625004，10721101和70933003)

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简介：Basedonexperimentalresults,thispaperpresentsthatunderspecificvibrationalandsolidifyingconditions,thereareseveralperiodiclayersappearinginthecrystallizationofA1-3％Mgalloy.Themechanismoftheformationofperiodiclayerisdiscussed.Furthermore,theuseofthelayerstoidentifythesolid-liquidinterfaceandtheeffectofsuchlayersonmechanicalpropertiesofalloyhavebeenstudied.

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简介：摘要智能运输系统(ITS），就是集信息处理、通讯、控制、以及高科技的电子技术等最新的科研成果，应用于交通运输网络中。它与传统的交通管理系统一个最显著的区别是，将服务对象的重点由以往的管理者转向道路使用者，即用先进的科技手段向道路用户提供必要的信息和便捷的服务，以减少交通堵塞，从而达到提高道路通过能力的目的。

简介：1.Introduction*SincethefirsttimeEasterIslandwasexplored,scholarshavebeenarguingandspeculatingaboutthedateofthenatives’arrival,thenatureandpurposeofthelargerstatues,itsactualnumberofinhabitants,thereasonsfortheprogressivedeforestationoftheisland,etc.Allofthishasreceivedvariousexplanationswhichareconsideredinfluentialfactorsindeterminingsocialandculturalchangesinthelivesoftheislanders(aquestiontobesurveyedinthelastsectionofthisarticle.)However,thelackofsufficientdatamakesitdifficulttoreachtoadefinitiveconclusion;thebestthatwecanhopeforistogivereasonableandtemptativehypotheses.

简介：Superlatticesconsistingofalternatinglayersoforganic/polymericmaterialshavebeenfabricatedfromtris(8-hydroxyquinoline)aluminum(Alq3)andpoly(N-vinylcarbazole)(PVK)byamultisource-typehigh-vacuumorganicmoleculardeposition.ThecharacteristicsofsuperlatticestructuresaredeterminedbythesmallangleX-raydiffraction,opticaladsorptionandphotoluminescence.Theelectroluminescentdeviceswiththesuperlatticestructurehavealsobeenfabricatedandtheemissioncharacteristicsarediscussed.

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简介：这份报纸基于距离几何学(DG)建议了一个新奇无线地点算法在信号的到达(TOA)的时间过滤的限制(也就是作为DG-TOA)。观察数据过滤并且处理并且基于DG-TOA算法导致数学公式被用于地点，也玩关键规则。模拟结果证明建议DG-TOA算法能提供更多的有效观察数据并且比的更精确最不方形的估计(LSE)算法在稠密，多线路，有变化评价错误的室内的情形。

简介：Threetyphooncasesareselectedtoconductaseriesofsimulationsthatareinitializedfromsequentialanalyses.Theresultsshowthattheforecasterrorincrucialareawhereatropicalcyclone(TC)interacteswiththeupstreamtroughishighlycorrelatedtothetrackforecasterroraftertheTCrecurvature.Furthermore,sensitivityexperimentsconfirmthatthedevelopmentsofthemidlatitudedownstreamcirculationsandthentheTCtrackafteritsrecurvaturearehighlysensitivetotheTCintensityanditslocationrelativetotheupstreamtrough,whichcangiveanexampleoronewayofsensitivityoftheTCtracktotheTC-troughinteraction.IftheTCinteractswiththeupstreamtroughmorestrongly(e.g.,theTCbeingintensifiedorgettingclosertotheupstreamtrough),thedownstreamcirculationswillbemoremeridional,thustheTCtrackwillbemorenortherlyandwesterly;otherwise,thedownstreamcirculationswillbemorezonal,andtheTCtrackwillbemoresoutherlyandeasterly.

简介：基于在二个邻近的地面单位之间的正常向量角度的估计的规则，我们使用地面复杂性因素的概念确定DEM的地面复杂性，然后在光栅DEM和听DEM的地面复杂性因素的公式理论上被推出。以便弄明白地面复杂性因素ECF和平均举起h怎么影响DEM地面表示RMSEet的精确性，高斯的公式摹拟的表面被使用模仿几真实地面表面，其各个有不同地面复杂性。通过在模拟数据，在DEM地面表示RMSEet的精确性之间的线性方程，地面复杂性因素ECF和一般水准的线性回归的统计分析，举起h被完成。一个新方法被提供与某个地面复杂性估计DEM地面表示RMSEet的精确性，它以后为DEM生产和相应错误研究给有说服力的理论证据。

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