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锯齿型单壁碳纳米管的广义层错能计算 被引量:2
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作者 张福州 王少峰 +3 位作者 张慧力 刘瑞萍 郭平波 叶金琴 《原子与分子物理学报》 CAS CSCD 北大核心 2008年第6期1411-1414,共4页
基于密度泛函理论的第一性原理方法,计算了两种不同半径的锯齿型单壁碳纳米管以及单层石墨的广义层错能曲线.对小位移处广义层错能曲线进行斜率拟合所得切变模量与其它文献值一致.对三条广义层错能曲线的对比可知,锯齿型碳纳米管与单层... 基于密度泛函理论的第一性原理方法,计算了两种不同半径的锯齿型单壁碳纳米管以及单层石墨的广义层错能曲线.对小位移处广义层错能曲线进行斜率拟合所得切变模量与其它文献值一致.对三条广义层错能曲线的对比可知,锯齿型碳纳米管与单层石墨的广义层错能曲线相近,锯齿型单壁碳纳米管的曲率效应不明显. 展开更多
关键词 第一性原理 锯齿型单壁碳纳米管 广义层错能 单层石墨
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Sinistral shear and extension of the northern section of Lijiang Basin in northwest Yunnan in Quaternary 被引量:9
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作者 HANZhujun XIANGHongfa GUOShunmin 《Chinese Science Bulletin》 SCIE EI CAS 2005年第5期452-459,共8页
The northern section of Lijiang Basin (NSLB) has the features of a zigzag fault, a kind of 'tracing extension' in the shape. Fault slip is characterized by both extension and sinistral shear. Average sinistral... The northern section of Lijiang Basin (NSLB) has the features of a zigzag fault, a kind of 'tracing extension' in the shape. Fault slip is characterized by both extension and sinistral shear. Average sinistral-shear and extensional displacements are respectively 1950 and 1730 m. This kind of movement began in middle Pleistocene, which is about 800 ka ago. Average sinistral and extensional slip-rates can be acquired, which are 2.44 and 2.16 mm/a. Geological evidence at different segments of the NSLB demonstrates results of geomorphic analysis, and is consistent with our knowledge about the zigzag fault. Realization of sinistral shear and extension of the NSLB provides direct evidence for the model of clockwise rotation of northwest Sichuan active block and the understanding of dynamic features of the Red River fault zone. 展开更多
关键词 云南 丽江 曲折断层 红河 顺时针旋转 断层带 动力学
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