简介:ThispaperdiscussesthelateYanshanian-Himalayanigneousrockseriesandminerogeneticseries(Chengetal.,1979,1982)relatedtotinpolymetallicdepositsintheTengchongarea.Themulti-stagedifferentiationandevolutionoftheigneousrockseriesledtotheconcentrationofmetalandore-formingelementsinacupolaofagranitebodyformedinthelatestage.TheminerogeneticseriesshowsazoningofNb-Ta-W-Sn,Sn-FeandSnaroundthecupolainspaceandamulti-stageregularityintime.Finallyaminerogeneticmodelandthreekeyfactorsoftinminerogenesisareputforwardfortinpolymetallicdepositsinthearea.
简介: 二、如何以股价指数期货投机 三、股票投资者如何以股价指数期货避险 四、如何以股价指数期货套利 五、摩根新加坡股价指数简介 六、股价指数期货的渊源与发展 七、新加坡国际金融交易所的风险管理机 制 八、总结,我们应该说明投资人可以如何利用股价指数期货来投机、 避险、套利,摩根新加坡指数期货合约 由于机构投资人对股价指数期货都已经很熟悉
简介:为任意的给定的积极条款系列$\sum\limits_{k=1}^\infty{a_k}$并且$\sum\limits_{k=1}^\infty{b_k}$,现在的纸为$\mathop提供一个有趣的必要、足够的条件{啜}\limits_{n\geqslant1}\{\sum\limits_{k=1}^n{a_k/\sum\limits_{k=1}^n{b_k}}\}=\infty$。
简介: 二、如何以股价指数期货投机 三、股票投资者如何以股价指数期货避险 四、如何以股价指数期货套利 五、摩根新加坡股价指数简介 六、股价指数期货的渊源与发展 七、新加坡国际金融交易所的风险管理机 制 八、总结,我们应该说明投资人可以如何利用股价指数期货来投机、避险、套利,系列之二以假想的例子说明如何利用股价指数期货投机
简介:为在上可辨的功能(0,1)有检验了某三角法的系列(1)的工具(2)。节2包含一些基本估计。在节3,作者介绍二条主要定理,它对应于提议1,中的2个[3]。
简介:Homogenizationofclimateobservationsremainsachallengetoclimatechangeresearchers,especiallyincaseswheremetadata(e.g.,probabledatesofbreakpoints)arenotalwaysavailable.Toexaminetheinffuenceofmetadataonhomogenizingclimatedata,theauthorsappliedtherecentlydevelopedMultipleAnalysisofSeriesforHomogenization(MASH)methodtotheBeijing(BJ)dailytemperatureseriesfor1960-2006inthreecaseswithdifferentreferences:(1)13M-consideringmetadataatBJand12nearbystations;(2)13NOM-consideringthesame13stationswithoutmetadata;and(3)21NOM-considering20furtherstationsandBJwithoutmetadata.Theestimatedmeanannual,seasonal,andmonthlyinhomogeneitiesaresimilarbetweenthe13Mand13NOMcases,whilethoseinthe21NOMcaseareslightlydifferent.ThedetectedbiasesintheBJseriescorrespondingtothedocumentedrelocationdatesareaslowas-0.71~0C,-0.79~0C,and-0.5~0Cfortheannualmeaninthe3cases,respectively.Otherbiases,includingthoseundocumentedinmetadata,areminor.TheresultssuggestthatanymajorinhomogeneitycouldbedetectedviaMASH,albeitwithminordifferencesinestimatinginhomogeneitiesbasedonthedifferentreferences.Theadjustedannualseriesshowedawarmingtrendof0.337,0.316,and0.365~0C(10yr)~(-1)forthethreecases,respectively,smallerthantheestimateof0.453~0C(10yr)~(-1)intheoriginalseries,mainlyduetotherelocation-inducedbiases.TheimpactoftheMASH-typehomogenizationonestimatesofclimateextremesinthedailytemperatureseriesisalsodiscussed.
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简介:RomanceoftheThreeKingdoms-TheTVSeries(IntroducingChina'sgreatestTVblockbuster.)BystaffreporterLIJIANGUOTHEMINGDynastyclassicR...
简介:<正>InstructionstoAuthorsSubmissionTypescriptsshouldbesubmittedinduplicatetotheEditorialBoardofActaMathematicaSinica(NewSeries),InstituteofMathematics,CAS,Beijing100080,China.TypescriptsshouldbetypedinEnglish,doublespacedandsingle-sidedonA-4sheetsandshouldbenumberedbeginningwiththetitlepage.Thefirstpageofanarticleshouldcontainonly(1)thetitleofthepaper,thename(s)
简介:<正>InthepresentnotethealgebraicindependenceofvaluesofseveralMahlerserieswithcertainparticularanddifferentparametersatalgebraicpointsisestablishedbymeansofatypicalapproximationmethodhandlingtheLiouvilletypeseries.