简介：Ｐｏｗｅｒｒｅｌｉａｂｉｌｉｔｙｐｒｏｍｏｔｅｄｉｎ１ｓｔｈａｌｆｏｆ１９９７Ｆｒｏｍｔｈｅｓｔａｔｉｓｔｉｃｓｏｆ２７ｍｕｎｉｃｉｐａｌｉｔｉｅｓａｎｄｐｒｏｖｉｎｃｉａｌｃａｐｉｔａｌｓｃｏｌｌｅｃｔｅｄｂｙｔｈｅＰｏｗｅｒＲｅｌｉａｂｉｌｉｔｙ...

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简介：研究了多壁纳米碳管非线性光致发光问题。理论上得到了多壁碳纳米管层间耦合对多壁管能带的影响。讨论了能带中范霍夫奇点的形成及其对多壁碳管光致发光的影响。实验上得到了多壁纳米碳管的吸收光谱和光致发光谱，吸收谱观察到了与范霍夫奇点相关联的吸收峰，发射谱观察到了频率上转换效应。并对上述实验结果进行了机理分析。

简介：InlightofChinasNinthFive-yearPlan(1996-2000)forElectricPowerIndustry&theLongTermTargetsbytheYear2010,thepaperconsidersthestrategyfordevelopingChina’sthermalpowerinthe21stcenturyshallbetheefficiencyandcleaningtechnologyofcoaluse.Especiallyimportantisthestructureofpowersourcesandconfigurationoftechnologyprocess,andsecondlytheimplementationofenergysavingandenvironmentalprotectionideologyinthevariousstagesofthermalpowerconstructionanddesignwork.

简介：Co-hostedbyChinaSocietyforHydropowerEngineeringandChinaThreeGorgesProjectCorporation,co-organizedbyChinaHydropowerEngineeringConsultingGroupCorporation,SINOHYDROCorporation,ChinaGezhouba(Group)CorporationandChinaInstituteofWaterResourcesandHydropowerResearch,organizedbyChinaElectricPowerInformationCenterBeijingZhongdianqiuzhenT&DCo.,Ltd.,supportedbyStateElectricityRegulatoryCommissionofChina,StateGridCorporationofChina,ChinaSouthernPowerGridCo.,Ltd.,ChinaHuaneng

简介：采用化学气相沉积法，在反应温度分别为980℃和1040℃时制备了多壁碳纳米管（MWNTs）样品，并采用扫描电镜和拉曼光谱对样品进行了表征；结果表明，当反应温度为9800C时，制备的碳纳米管结构缺陷更多。使用波长为350nm的光激发2种样品并测量它们的光致发光光谱。发射峰值约在550nm处，反应温度为980℃时制备的碳纳米管的发射光谱的光强较强。

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