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简介：ThefallawingstarytellsalegendspreadinWeifangaboutkite.Afterreadingthefalktale,youmaygetsomeknowledgeaboutthepastexperiencesofthekitefamiliesintheregian.

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简介：一天，狼吃东西太急了．吞下骨头，在喉咙卡着。使他好痛苦。他试图把它拔出来。但是没成功。恰在此时。他见一只鹤过来了。“亲爱的朋友。”他对鹤说，“我的喉咙里卡住一个骨头。你有长脖子；能不能伸进去把它拔出来?拔出来了，我要好好酬谢你。”

简介：Thispaperpresentsfuzzy-baseddesignforthecontrolofoverheadcrane.Insteadofanalyzingthecomplexnonlinearcranesystem,theproposedapproachusessimplebuteffectivewaytocontrolthecrane.Therearetwinfuzzycontrollerswhichdealwiththefeedbackinformation,thepositionoftrolleycraneandtheswingangleofload,tosuppresstheswayandacceleratethespeedwhenthecranetransportstheheavyload.Thisapproachsimplifiesthedesigningprocedureofcranecontroller;besides,thetwincontrollermethodreducestherulenumberwhenfulfillingthefuzzysystem.Finally,experimentalresultsthroughthecranemodeldemonstratetheeffectivenessofthescheme.

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简介：Theprobailityofcranelivinginreedywetlandscanreach100%,atthesametime,theareaofreed,thewaterlevelandadjacentwaterareaaremainfactorswhichcontrolthecrane''''''''shabitatselection.Weallknowthatallthesefactorsarespatiallyheterogeneous.FortheXianghaiwetlandsafetyandtoprotecttheXianghaiwetlandhabitatofcrane,thispaperhasmainlyidentifiedasolutiontotheseproblems.ThewetlandinformationisextractedfromtheTMimages,whichreflectthewholewetlandlandscapeandareveryimportantforbothquantitativeanalysisofremotesensingobservationoftheearthsystemandpositioninganalysisinGISdatabasethatisautomaticallyextractedfromDEM.TheDEMforXianghaicharacteristicsoftopographyiscreated.OnthebasisoftheGRIDSUBMODULE,applyingtheGISspatialoverlayanalysis,therelationshipbetweenthewaterlevelandthereedareabelowthewaterlevelandtheratingdistributionmapsofreedareaabovewaterlevelisestablished,Whenthewaterlevelreachesthealtitudeof165n,thereedarea,981.2haismaximum,i.e.,thewaterlevelof165mistheoptimal.

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简介：PI控制策略为一个水力的起重机吊杆系统(HCBS)的活跃抑制控制基于模糊集合点weighting列在后面被建议。控制Twovalve的PI控制器，基于列在后面的fuzzyset点weighting和一个有限半综合者(大规模集成电路)包括一个比例的前馈控制控制器，分别地被设计。大规模集成电路习惯于限制输出信号并且在光谱的低频率结束阻止。由使用一个范围照相机和电子反馈控制，在HCBS上抑制的尖端能人工地被调整。HOPSAN和MATLAB/SIMULINK的一种合作控制模拟技术被用于控制器设计。模拟结果证明建议PI控制系统让更少象更快的反应一样射。在操作期间在HCBS上抑制的尖端被改进。

简介：Remainingusefullife(RUL)estimationisatopicthathasgainedmoreandmoreattentioninthefieldoffluidpowersystems,thankstothetremendouspotentialsshownforimprovingsafetyandreducedproductionlosses.However,manychallengesrelatedtoRULestimationarenotsolvedyet,mainlyconnectedtothedefinitionofthehealthstatusofeachcomponent.Aprognosticmethodbasedonadata-drivenmethodologyforhydraulicsystemsishereproposedtoestimatethepercentageoflifealreadyspentbythemonitoredcomponents.Thepotentialsofthemethodologyareshownconsideringthecaseofatruck-mountedhydrauliccrane,forwhichasimulationmodelwasavailable.

简介：GM记者：API682标准是美国石油协会对离心泵和转子泵用的机械密封执行的标准,其密封设计、试验、适用范围和要求都非常严格,JohnCrane在执行这项标准方面都做了哪些工作,为什么要大力推广？