学科分类
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9 个结果
  • 简介:TheceremonyforopeningoftheStatePowere-CommerceNet(http://www.powerec.com.cn)andfoundationofBeijingStatePowerUnionB-NetCo.LtdwasheldonFeb16.E-Businessisanimportantpartofpowerinformationsystem,powersystemhassolidfoundationtodevelope-businessandhugemarketdemand.

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  • 简介:AnexclusiveinterviewwiththeauthorwaspublishedinIssue2,2010ofthisjournal,inwhichthestartingpointandmacro-strategytoconstructsmartgridinChinawaspresented.Meanwhile,thethreeperiodsofsmartgridconstructionwerealsomentioned,namelyplanningandpilotprojectconstructionperiod,overallconstructionperiod,andimprovingandupgradingperiodasitisplannedbySGCC.Attheinvitationofthisjournal,theauthorwroteanarticlefurtherintroducingtheimplementationinthefirstperiodofSGCCsmartgridprogram.Thearticlewillbepublishedintwoconsecutiveissues.

  • 标签: China GRID SMART PROJECT construction SMART
  • 简介:Powerreliabilitypromotedinsthalfof1997Fromthestatisticsof27municipalitiesandprovincialcapitalscollectedbythePowerReliability...

  • 标签: POWER
  • 简介:Helicopterinspectionofultrahighvoltage(UHV)transmissionlineshasunmatchedadvantagescomparedtomanualworkduetotheinspectionangleandhigh-techequipmentonboard,especiallyindetailedinspectionsoftowerheadsanddefect-detectionsinvirtueofinfrared/ultraviolettechniques.Thispaperdealswithsomekeytechnicalproblemsintheinspectionsof1000kVUHVAClineswithahelicopter,suchasthesafedistanceoflive-lineworking,electromagneticfieldintensityandflightcontrol.Basedonthestudyresults,asetofUHVlineinspectionmethodswasworkedoutandappliedtotheinspectionofliveUHVlines.

  • 标签: 安全距离 直升机 特高压 紫外线技术 流线 高压线路
  • 简介:令G=(V(G),V(G))是一个简单图,Mp(G)为图G广义Mycielski图。图G的L(2,1)标号数,记作λ(G),定义为λ(G)=min{k|G有一个k-L(2,1)标号}。n个顶点的路、圈分别记作Pn,Cn。给出了路和圈的广义Mycielski图的L(2,1)标号数λ(Mp(Pn))和λ(Mp(Cn))。

  • 标签: 频道分配问题 广义MYCIELSKI图 L(2 1)标号 L(2 1)标号数
  • 简介:Co-hostedbyChinaSocietyforHydropowerEngineeringandChinaThreeGorgesProjectCorporation,co-organizedbyChinaHydropowerEngineeringConsultingGroupCorporation,SINOHYDROCorporation,ChinaGezhouba(Group)CorporationandChinaInstituteofWaterResourcesandHydropowerResearch,organizedbyChinaElectricPowerInformationCenterBeijingZhongdianqiuzhenT&DCo.,Ltd.,supportedbyStateElectricityRegulatoryCommissionofChina,StateGridCorporationofChina,ChinaSouthernPowerGridCo.,Ltd.,ChinaHuaneng

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  • 简介:研究了轧制Mg-3Al-1Zn合金的动态再结晶组织、晶粒尺寸、织构分布和力学性能。结果表明,晶粒尺寸、晶粒大小均匀程度、再结晶组织份数及织构分布共同影响合金的力学性能。晶粒尺寸和织构类型相同时,形变组织份数越高,屈服强度越高;细小晶粒和均匀的晶粒分布易于获得高延伸率;{0002}基面织构对轧制合金屈服强度的各向异性有显著影响。

  • 标签: MG-3 AL-1 ZN合金 轧制 动态再结晶 织构