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138 个结果
  • 简介:Underthecomprehensivedeepeningreformandpromotingnewurbanization,Chinalaunchedanewroundofreformofhouseholdregistrationsystem.Reformhasamajorbreakthroughinfiveareas:toimplementnewurbanizationstrategyofhuman-centric,toachieveequalizationofbasicpublicservicesgradually,tobreakuplandrightsandruralmigrants,toprovideprotectionforfamilymigrants,andtoincreasefinancialsupportbygovernments.Butthereformstillfacesmanydifficulties,howtodeterminetheconditionssettledbycitysizeisdifficulttoimplementeffectively,financialtransferpaymentsystemreformisfacingenormousdifficulties,aswellasthesizeoftheurbanpopulationisdifficulttodetermineetc.

  • 标签: 户籍制度改革 财政转移支付制度 城镇化战略 破口 农村移民 城市规模
  • 简介:Redbloodcells(RBC)’flickeringpresentthedynamicpropertiesofthecytomembrane.Itscomplexitycouldbeusedforaginganalysisortheevaluationforthestoragequality.Theflickeringactivityisakindofreversibleperpendicularmotionofthespecifiedpixel.Therefore,thecomplexityanalysisdependsonthereliabledetectionoftemporalvariationforthegray-scalevaluesfromeachpixelofthecells.Inthispaper,weimprovedourpreviousworkonthescreeningofthehorizontaldriftedcellswithasurfacebasedoncellregistrationmethodandtheeffectofGSMexposuretothedynamicpropertiesoftheRBCsintermsofmulti-scalesampleentropywaspresentedinthepaper.

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  • 简介:<正>Editor’snote:ChineseAssociationforInternationalUnderstanding(CAFIU)establishedrelationswithgovernmentofHiroshimaPrefectureofJapanin1999.Twoprograms,namelyOverseasTechnologyResearchWorkersandShort-timeTrainingCourseforOverseasJapaneseTeacherswerelaunchedin2000.EachyearCAFIUrecommendsoneJapaneseteacherforatwo-month

  • 标签: Japanese Training PROGRAMS GRAMMAR PRONUNCIATION EDUCATIONAL
  • 简介:Toestablishthemechanismofsurfacechangeinacontinuouspolishingsystem,anidealmathematicalmodelisbuiltbasedonWinkler’shypothesisandthePrestonequation.Thebasicfeaturesofthemodelarethechangeratesinthesurfacepeak–valley(PV)valuesoftheworkpiece,conditioningdiskandpitchlap,ratherthanthespecificsurfaceshapes.Inaddition,anequilibriumstateexistsinthesystem,indicatingthatthesurfacechangeratesareallzero.Underequilibrium,thesurfaceofthelapcouldremainflat,anditisinsensitivetothesurfaceerroroftheworkpiece.Thesecharacteristicslaythetheoreticalfoundationsforhigh-efficiencyandhigh-precisionpolishing.Themethodstoobtainanequilibriumstatewithflatsurfacesarethenproposedandconfirmedexperimentally.High-precisionsurfacesbetterthanλ/10(λ=632.8nm)areconsistentlyproducedexperimentally.

  • 标签: CONTINUOUS POLISHING EQUILIBRIUM STATE HIGH accura
  • 简介:MostscholarsworkingontheeconomydevelopmentinTibet,especiallythehusbandrymentionedthe"reluctanceslaughterandsell"phenomenonoffarmer(herdsman)andallagreedthatitisanimportantreasonforobstructingthecomeoutrateoflivestockinTibetandcausingundevelopedcommodityeconomyandgrasslandoverload.

  • 标签: 销售 屠宰 藏族 经济发展 商品经济 学者
  • 简介:Heartfailure(HF)isacomplexclinicalsyndromethatresultsfromanystructuralorfunctionalimpairmentofventricularfillingorejectionofblood.HFisoneofthemostimportantandsevereendstagesofmanycardiovasculardiseases.EpidemiologicalstudiesofHFhavefocusedmainlyontheprevalence,incidence,mortality,fatality,anddistributionandtemporaltrendsoftheseindicatorsamongdifferentpopulations.ThisreviewhighlightsimportantepidemiologicalstudiesofHFinChina.

  • 标签: HEART FAILURE CARDIOVASCULAR DISEASES EPIDEMIOLOGICAL study
  • 简介:Inthispaper,thehydrodynamiccharacteristicsofwaterflowinChaohuLakearestudiedbyusingthefinitevolumecoastaloceanmodel(FVCOM),whichisverifiedbytheobserveddata.Thetypicalflowfieldandthe3-Dflowstructureareobtainedforthelake.Theflowfieldsunderextremeconditionsareanalyzedtoprovideaprospectiveknowledgeofthewaterexchangeandthetransportprocess.Theinfluenceofthewindontheflowisdeterminedbythecrossspectrummethod.Theresultsshowthatthewind-drivenflowdominatesmostareaofthelake.Underprevailingwindsinsummerandwinter,thewaterflowstowardsthedownwindsideattheupperlayerwhiletowardstheupwindsideatthelowerlayerinmostareaexceptthataroundtheChaohuSluice.Theextremewindspeedisnotfavorableforthewaterexchangewhilethesluice’sreleasingwateracceleratestheprocess.Thewatervelocityinthelakeiscloselyrelatedwiththewindspeed.

  • 标签: 水动力过程 数值研究 巢湖 流场结构 水动力特性 海洋模式
  • 简介:Multiphaseflowcontrolwithelectromagneticbraking(EMBr)iswidelyusedinthecontinuouscastingofsteelslabs.Thebasicaimoftheflowcontrolsystemoftheprocessistodelivermoltensteelfromtheladlethroughthetundish,uppertundishnozzle,slidegate,andsubmergedentrynozzleintothemoldregionwithminimaldefects.Thisrequirestheoptimizationofturbulencelevelsatameniscustoavoidbothanexcessivelyfastflow(whichcreateshighfluctuationsofthemeniscuslevelinadditiontoslagentrapment,surfacenonuniformities,andsurfacedefects)andinsufficientslowflow(whichleadstomeniscussolidification,inadequatefluxinfiltration,andsurfacedefects).Inthisstudy,aEulerian-LagrangianapproachisusedtoinvestigatetheeffectsofEMBrandArbubbleinjectiononthesurfaceflowvelocity.TheresultsshowthathighArinjectionratescanleadtoanincreaseinsurfacevelocity.

  • 标签: 电磁制动 流体流动 欧拉-拉格朗日方法 表面缺陷 中间包水口 动模
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