简介：ChinaJournalofOralandMaxillofacialSurgery(CJOMS)(ISSN1672-3244),foundedinNovember82002,isanofficialjournalofChineseSociety

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简介：统计downscaling的二条途径在19602008期间在夏天在北京车站基于每日的最大、最小的温度观察的百分位数被用于温度极端的索引。一个人到过由起初使用文件结束分析和逐步的线性回归的下阶层的每天最大、最小的温度，然后计算极端的索引；其它到过直接下阶层由使用季节的大规模温度和geo潜在的高度记录的基于百分位数的索引。交叉验证结果证明后者途径比前者有更好的表演。然后，后者途径在北中国被用于48个气象学的车站。所有48个车站的交叉验证结果显示出在基于百分位数的索引和季节的大规模变量之间的靠近的关联。最后，在北中国的温度极端的索引的未来情形被把统计downscaling用于哈德利中心投射联合模型版本3(HadCM3)在代表性的集中小径下面的模拟4.5(RCP4.5)第五的情形联合了模型内部比较的工程(CMIP5)。结果证明每日的最大的温度的第90百分位数将在所有地s珀?珀由大约1.5talSe增加吗？？

简介：<正>BeijingNGOAssociationforInternationalExchanges(HereinafterreferredtoasBeijingNGO)wasestablishedinAugust,2007.Itwasco-foundedbyBeijingPeople’sAssociationforFriendshipwithForeignCountriesandmorethan60NGOssuchasBeijingWomen’sFederation,BeijingYouthFederation,

简介：1.TheStateCouncilpublishedtheWhitePaperon'SituationandPoliciesofChina'sRareEarthIndustry'TheStateCouncilpublishedtheWhitePaperon'SituationandPoliciesofChina'sRareEarthIndustry'onJune20,2012.Itcomprehensivelyintroducedcurrentsituation,problemsbeingconfrontedandrelatedpoliciesofChinarareearth

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简介：Birthdefectsaffectthequalityofthenewbornpopulation,andhavebecameamajorpublichealthprobleminChina.Geneticfactors,environmentalfactors,andtheinteractionofthetwoisthedirectcauseoftheincidenceofbirthdefects.Thisreview,basedontheneuraltubedefectsasanexample,giveinsightintothepathogenesisofbirthdefectsfromthegenomics,epigenetics,metabonomicsandenvironmentfactorsandexplorenewstrategyofbirthdefectpreventioninChina.

简介：Monitoringofsubsurfacefluid(undergroundfluid)isanimportantpartofeffortsforearthquakepredictioninChina.Thenationwidenetwork,whichmonitorsgroundwaterlevel,watertemperature,andradonandmercuryingroundwater,hasbeenconstructedinthelastdecades.Largeamountsofabnormalfluidchangesbeforeandaftermajorearthquakeshavebeenrecorded,providingpreciousdataforresearchinearthquakesciences.Manystudieshavebeendoneinearthquakefluidhydrogeologyinordertoprobethenatureoftheearthquake.Muchprogressinearthquakefluidhydrogeologyhasbeenmadeinthelastdecades.Thepaperprovidesareviewoftheadvancesinresearchonearthquakefluidhydrogeologyoverthelast40yearsinChina.Itdealswiththefollowingfiveaspects:(1)anintroductiontothedevelopmenthistoryofmonitoringnetworksconstruction;(2)casesofdifferentsubsurfacefluidchangesrecordedbeforesomemajorearthquakeswhichoccurredinthelastdecades;(3)characteristicsofsubsurfacefluidchangesfollowingmajorearthquakes;(4)mechanismofsubsurfacefluidchangesbeforeandfollowingearthquakes;(5)applicationofearthquakefluidsinthehydrogeologyfield.

简介：OrganizedbyChinaRareEarthInformationCenterandNationalRareEarthInformationNetworkandco-sponsoredbyInformationSpecialtyCommitteeofChinaRareEarthSociety,TechnologyandEconomySpecialtyCommitteeofChinaRareEarthSociety,NorthernRareEarthIndustryProductivityPromotionCenteraswellasmediaincluding'RareEarth

简介：尽管有快速的都市化，在城市的区域的超过2亿人生活仍然作为农业被登记并且为在瓷器Hukou下面的很社会的好处是不合格的(或家庭登记)系统。这份报纸为基于三指示物在城市的中国解决农村候鸟识别地区性的适用性(改编的重新安居的社区的紧急，技巧和能力的度，和到支持的政府的能力那再定居)。它从县水平花2008政府社会经济的数据进考虑。空间，统计，并且决定树分析，由社会科学统计套装软体，Geodata，和ArcGIS软件支持了，有五张分开的人口的表演打字，有适用性的不同的度的各个。这些包括高度合适的区域，对解决候鸟到外面的区域合适的区域，对从外面的区域解决候鸟合适的区域，有中等潜在、不合适的区域的区域。这份报纸建议为解决农村候鸟的地区性的政策是有意义的，自从五个区域独立相对是分布式的。由于为越过区域的不同身体的适用性，相等的处理应该越过县和省被用于本国的候鸟和那。而且，社会福利辨别的破坏遵守了Hukou系统和服务将活跃地并且稳定地比所谓的安定农村候鸟具有更多的实际意义的基本公众的均等。

简介：<正>TecnonOrbiChemandPUWorldinviteyoutojoinusinXiamen,Chinaforthe7thInternationalPolyurethaneSummiton7-8November2013.Theglobalpolyurethaneindustryhasdemonstrateditsinnovativeapproach-promotingnewapplicationsandtechnologiesandpushingforwardbio-baseddevelopments.However,theindustrystillfaceshugechallengesincludingaslowdowninthekeyChinesePUmarket,ongoingfragilityofthe

简介：<正>AttheinvitationoftheChineseAssociationforInternationalUnderstanding(CAFIU),aninememberdelegationofPhilippineCenterofYoungLeadersinGovernanceheadedbyLawrenceFortun,MemberoftheHouseofRepresentativesvisitedChinafromOctober10to19.InBeijing,

简介：Overthepast25years,anannualaverageof6to7tropicalcyclones(TCs)madelandfallonChinamainlandandHainanIslandwithanaverageintensityof29.9m/satlandfallandmaintainedatleasttropicalstormintensityfor15.6hoursoverland,leadingto505deathsand37billionyuanindirecteconomicloss,whichaccountedfor0.4%oftheannualGDPofChina.Althoughtherewaslittlechangeintheoveralllandfallfrequency,intensityatlandfallandoverlandduration,theannualtotaldirecteconomiclossincreasedsignificantlyduetotherapideconomicdevelopmentoverthepast25years.Underglobalwarming,theintensityofTCsthatmadelandfallonHainandecreasedbuttheoverlanddurationandfrequencyofTCsthatmadelandfallonFujianandZhejiangincreased.Atthenationalandprovinciallevels,theratioofthedirecteconomiclosstoGDPandcasualtiescausedbylandfalltropicalcyclonesdecreased,suggestingtheeffectivenessofdisasterpreventionandreductioninChina.

简介：Thetransportationindustryisanessentialsectorforcarbonemissionsmitigation.ThispaperfirstlyusedtheLMDI(LogarithmicMeanDivisiaIndex)decompositionmethodtoestablishfactorsdecompositionmodelonChina’stransportationcarbonemission.Then,aquantitativeanalysiswasperformedtostudythefactorsinfluencingChina’stransportationcarbonemissionsfrom1991to2008,whichareidentifiedastransportationenergyefficiency,transportationstructureandtransportationdevelopment.Theresultsshowedthat:(1)Theimpactoftransportationdevelopmentontransportationcarbonemissionsshowedpullingfunction.Itscontributionvaluetocarbonemissionsremainedathighgrowthsince1991andshowedanexponentialgrowthtrend.(2)Theimpactoftransportationstructureontransportationcarbonemissionsshowedpromotingfunctioningeneral,butitsroleinpromotingcarbonemissionsdecreasedyearbyyear.Andwiththecontinuousoptimizationoftransportationstructure,thepromotingeffectdecreasedgraduallyandshowedtheinversed"U"trend.(3)Theimpactoftransportationenergyefficiencyontransportationcarbonemissionsshowedafunctionofinhibitionbeforepulling.Inordertopredictthepotentialofcarbonemissionreduction,threescenarioswereset.Analysisofthescenariosshowedthatifgreaterintensityemissionreductionmeasuresaretaken,thecarbonemissionswillreduceby31.01milliontonsby2015andby48.81milliontonsby2020.

简介：Progressesintheresearchforseasondivisionandseasonalchangesarereviewedsystematicallyinthispaper,whichparticularlyintroducestheresultsofanationalnaturalsciencefoundationproject,'thenonlinearidentificationofseasonalchangesanditsresponsestoglobalwarming'.Theprojectdevelopedtwoobjectiveandquantitativemethodsforseasondivision:thenon-linearsimilaritymeasure(NSM)methodandtheregionalmulti-elementoptimaldissection(RMOD)method,whichdifferfromtraditionalonesforseasondivision.Besides,theprojectfurtherinvestigatedseasonalchangesandtheirresponsestoglobalwarming,analyzedevolutioncharacteristicsofthestartingdateandlengthofseasonsinhistory,revealedtheirrelationshipswithextremeeventsandprecipitationpatternsinrainyseasons,andtherebybuiltaresearchsystemforseasonalchangesinChinaundertheglobalwarmingbackground.Finally,theauthorsmakeanoutlookontheresearchforseasondivisionandseasonalchangesandputforwardseveralissuesassociatedwithseasonandclimatechangesthatneedtobefurtherexplored.

简介：7.ChinesescientistsindependentlydevelopedthecosteffectiveLa-Fe-BserieshydrogenstoragematerialsAftermorethanfouryearsefforts,hydrogenstorageresearchteaminBaotouResearchInstituteofRareEarthshaddevelopedLa_(15)Fe_(77)B_8,La_(17)Fe_(76)B_7andLa_8Fe_(27)B_(24)serieshydrogenstoragealloys,whichhavethemultiphasestructureincludingLaNi_5phase,