简介:Astrongdelegationof12membersheadedbyProf.Dr.lng.BrunoMueller,theVicePresidentandmem-beroftheBoardofthePowerTransmissionandDistributionGroupofSiemensAGcametoChinaonOct.23,1991torunseminarsonSiemenstechnology,introducingsystematicallythetrendsandstate-of-the-artpracticesinpowertransmissionanddistributionsystems.ThedelegationwasontheinvitationoftheDepartmentofIn-ternationalCooperationofMinistryofEnergyandChinaElectricity
简介:PhosphorsforPDPhasgoodprospectforthelargepotentialofPDPindustry.LEDtechnologybringsnewmarkettobedeveloped.DevelopingphosphorsforwhiteLEDwithhighefficiencyandlowlightattenuationisanurgentworktodo.ApplicationofphosphorsincolorLEDisininitialstage.1.GoodProspectofPhosphorsforPDPColorPDPiswidelyusedtoday.Three-prime-colorphosphorexcitedbyVUVisthekeymaterialforcolorPDP.Thismakesresearchonthree-prime-colorphosphorforcolorPDPimportant.Follow...
简介:EditorinChief:Pr”I犯ssorDr.J】ANGZehuiPresidentofCAF,AeademicianofInternationalAeademyofWoodSciencesASSOCisteEditofS:Dr.LlZhiyongZHANGJianhuaEDff()R工气LDiteCtor:C《)入仆ITI,1,EE:DePutyDirector:ProfessorDr.JIANGZehuiDr.ZHAN(妥Shougong(StandingVicePresidentofCAF)Dr.RistoSEPPALA(ChairmanofIUFRO)入lembers:APPANAH,SimmathiriSeniorProgra一刀Advisor,ForestryResearehSuPPortProgralnforAsiaa一ldthePaeifie.FAOe一mail述i卫迎里垃亘这缪里旦迷鱼吏迁旦Q卫笔BARNETT,JohnPres一dent,Internar一ollalAeadelllyof认气!odSelen...
简介:TheChinaAssociationforScienceandTechnology(CAST)isanon-profit,non-governmentorganizationofChinesescientificandtechnologyworkers.Asabridgebetweenthenation'sscientificandtechnologicalworkersandthegovernment,itisanimportantdrivingforceindevelopingthecountry'sscienceandtechnology.
简介:EditorinChief:ProfessorJIANGZehui,PresidentofCAF,AcademicianofInternationalAcademyofWoodSciencesAssociateEditors:Dr.LIZhiyongZHOUJizhongEDITORIALCOMMITTEE:Director:ProfessorJIANGZehuiDeputyDirector:Dr.ZHANGShougong(StandingVicePresidentofCAF)Dr.RistoSEPPALA(ChairmanofIUFRO)Members:
简介:EditorinChief:ProfessorJIANGZehui,PresidentofCAF,AcademicianofInternationalAcademyofWoodSciencesAssociateEditors:Dr.LIZhiyongZHOUJizhongEDITORIALCOMMITTEE:Director:ProfessorJIANGZehuiDeputyDirector:Dr.ZHANGShougong(StandingVicePresidentofCAF)Dr.RistoSEPPALA(ChairmanofIUFRO)
简介:ThestateofTiresearch,developmentandindustryisreviewedinthisarticle.Thefifty-yearanniversaryofTitechnologycommercializationintheUSAprovidesanopportunityforahistoricalperspective.Incorporationof"information-age"toolsintoalloydevelopment,processing,andproductioninvigoratesthetechnology.Consolidation,diversificationandglobalizationhavebeentransformingtheTiindustryintherecentyears.
简介:EditorinChief:ProfessorJIANGZehui,PresidentofCAF,AcademicianofInternationalAcademyofWoodSciencesAssociateEditors:Dr.LIZhiyongZHOUJizhongEDITORIALCOMMITTEE:Director:ProfessorJIANGZehuiDeputyDirector:Dr.ZHANGShougong(StandingVicePresidentofCAF)sDr.RistoSEPPALA(ChairmanofIUFRO)Members:
简介:traditional current differential protection cannot identify such fault for the sake of sensitivity limited by normal load current. RCS-985 Series generator-transformer unit protection is equipped with transformer DPFC percentage restraint differential protection and generator DPFC percentage restraint differential protection. Comparing with traditional percentage restraint differential protection,DPFC percentage restraint differential protection makes use of DPFC in phase current on each side of transformer and DPFC in differential current,Inter-turn fault is the main kind of fault in electric power transformer. It is meaningful that employing sensitive and secure protection to identify inter-turn fault inside power transformer. In RCS-978 series power transformer protection
简介:ChinaRareEarthTechnologyMarket,sponsoredbyChinaRareEarthInformationCentre(CREIC),openedandinformationexchangeandtechniquetrans-ferwasheldNov.9-12,1993inNanjingcity,JiangsuProvinceaftermorethanoneyear’spreparation.ThisactivityincludedinformationreleaseandposterdisplayofREtechnology,callingfortenders
简介:UniversityofScienceandTechnologyBeijing(formerBeijingUniversityofIronandSteelTechnology)--oneofthenationalleadinguniversities,featuringinmetallurgyandmaterials,isapolytechnic,takingengineeringasmaincourseandcombiningtogetherscience,engineering,management