简介：

简介：XunWu,acountyin3iangXiProvince,iswell-knownforitsrareearthre-sourcesandbegantodevelopitsREin-dustryin1976whenonlymixedREwasproduced.However,withtheadoptionofacontinuousextractionseparationtech-niqueandrelevantdesignprovidedbytheBaotouResearchInstituteofRare

简介：ＷＵ－ＲＩＴＴ＇ＳＭＥＴＨＯＤＦＯＲＮＯＮＬＩＮＥＡＲＣＯＮＴＲＯＬＳＹＳＴＥＭＳ￥ＬＩＳｈｕｒｏｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍｓＳｃｉｅｎｃｅ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉｊｉｎｇ１０００８０，Ｃｈｉｎａ）Ａｂｓｔｒａｃｔ：Ｔｈｉ...

简介：AtthepressconferencehostedbytheInformationOfficeoftheStateCouncil,WuYi,theministerofForeignTradeandEconomicCooperation,saidthatChina’sforeigntradeandeconomiccooperationsgrewsteadilylastyearonthebasisofrapidexpansionoverpreviousyears.Thehighlightsinvolvedadrasticincreaseofimportswhileexportsincreasedslowly,a

简介：OneofthecentralquestionsinCAGE^[1]isblendingsurfaceswhichprovidesthetheoreticalbasisforthedesigntechnologyofspacesurfaces.Wewilldiscussthegeneraltheoriesandalgorithmsformultivariatehyperfiniteinterpolationandtheirapplicationtotheblendingofimplicitalgebraicsurfaces,andinvestigatetheexistenceconditionsofhyperfiniteinterpolation.BasedonWu'stheoryonblendingimplicitalgebraicsurfaces,theproblemofblendingtwoquadricsurfacesisstudied.TheconditionsforthecoefficientofgiunderwhichthereexiststhecubicblendingsurfaceS(f)(thelowestdegree)areobtainedandtheconcreteexpressionsoffarepresentedistheyexist.TheseresultscanbeapplieddirectlytoCAGD.

简介：1.IntroductionCPECC,theChinaPowerEngineeringConsultingCorpora-tion,alegaleconomicentityandanassociatememberoftheChinaInternationalEngineeringConsultingCorporation(CIECC),hasbeenretainedasaqualifiedinternationalconsultingfirmbytheWorldBanksince1986,andentrustedwiththedecisionphaseofthermalpowerprojectservicessuccessivelyinthefollowingthreecoal-firedpowerstationprojects,allfinancedbytheWorldBank:(1)WujingPowerStationinShanghai,2x300MW,tobeputincommercialoperationin1991and1992successively;

简介：ThefirsttimeIhavelearntthenameWuQingwasinahostshow,"Close-Up"onCCTV-4.SheisaprofessorofBeijingForeignStudiesUniver-sity,andmoreoversheisthedaughterofoneofChineseliterarygiants,Ms.BingXin.Iwasimmediatelyfascinatednot