简介：通过将含有原子百分含量为29／6锂（2at％）的锌锂（Zn—Li）合金薄膜在500℃氮气氛中退火2h，然后在700℃氧气氛下退火1h的方法分别制备出P型锂掺杂的氧化锌（ZnO：Li）薄膜。通过He—Cd激光器的325nm线激发，测量了样品低温（12K）发光光谱，并根据Zn—Li合金薄膜的低温发光光谱特征，计算出（LiZn-N）复合受主能级的位置位于价带顶137meV处。

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简介：OnDecember28,2000,theretrofittingprojectbyusing410t/hCFBCboilerinFengyiPowerPlant,JiangxiProvincewasstartedformally,whichindicatesthattheresearchanddevelopmentofcleancoalcombustiontechnologyinChinahasmadeasignificantbreakthrough.The410t/hCFBCboileradoptedint

简介：TheConstructionMachineryDivision(CMD)intheRe-searchInstituteofElectricPowerConstruction(EPCRI)isaR&Dorganizationspecializedonconstructionmachineryandtechnologyforthermalpowerstationandtransmission&distributionprojects.Itwasestablishedin1964.Therearenow45scientificre-

简介：<正>ThepaperoutlinestheYangtzeThreeGorgeswaterconservancycomplex.ItdescribesthepowertransmissionanddistributionequipmentintheThreeGorgesLeftBankHydropowerStation,especiallylargehigh-voltagedistributiondevices.ItelaboratesthemeasuresforsuppressingGISover-voltageandthetestsonVFTO,besidestechnicalmeasurestoensuresafetyandstabilityofpowersysteminthestation.Italsomakessomeanalysesandsummariesabouttheproblemsencounteredinoperationoftheequipment.

简介：介绍一种化学镀Ni-P合金层的退镀溶液配方,对Ni-P合金层退镀液对金属基体的腐蚀量进行了测定,并对退镀反应的机理进行了初步的探讨.