The objective of this work is to contribute to the crustal evolution during the Paleoproterozoic in the Northeast of Côte d’Ivoire through the structural study of the Bondoukou-tanda locality. To do this, we pro...The objective of this work is to contribute to the crustal evolution during the Paleoproterozoic in the Northeast of Côte d’Ivoire through the structural study of the Bondoukou-tanda locality. To do this, we proceeded by a macroscopic observation of the outcrops for the identification of the structures (schistosity, fold, shear, and lineation). The structures indicated the direction of the main constraints and the relative correlations between the lithologies. The structural measurements, in particular the direction and the dip obtained, were all processed by the GEOrient software to draw up the stereographic projections for a static interpretation of the measurements. Given the rarity of rock outcrops in the study area, the teleanalytical data were of considerable support in the structural analysis. The various treatments carried out on the ENVI 5.2 software made it possible to identify a total of 471 lineaments. They cover the entire area and are of variable lengths (1.24 to 9.73 km). The different directions highlighted from this methodology are a main direction: NNW-SSE to NW-SE;a secondary direction: NNE-SSW to NE-SW;a tertiary direction: ENE-WSW to E-W. Associated with the lithology map, the teleanalytical map shows that the lineaments are unevenly distributed throughout the study area. The lineaments appear more compact in the volcano-sedimentary and sandstone-conglomeratic units than in the granitoid intrusives. However, the Bondoukou granodiorite appears to be the least fractured lithology.展开更多
IEEE PES 2006年度学术会议和国际大电网会议(CIGRE)2006基本上代表了当今电力技术的最高水平和最新研究方向,其论文集对我国电力系统运行和科研工作有较高的参考价值。本文对上述2个会议的论文集进行了综述,主要内容包括动态安全评估...IEEE PES 2006年度学术会议和国际大电网会议(CIGRE)2006基本上代表了当今电力技术的最高水平和最新研究方向,其论文集对我国电力系统运行和科研工作有较高的参考价值。本文对上述2个会议的论文集进行了综述,主要内容包括动态安全评估、广域量测系统、广域控制系统、系统恢复等方面的研究现状介绍与经验总结。最后结合我国电力系统调度自动化方面的实际情况提出了一些建议。展开更多
跨课程写作(Writing Across the Curriculum)教学改革运动兴起于20世纪70年代的美国,对其高等教育中的课程设置、教学方式等影响深远,时至今日也开始为越来越多的国家所借鉴。在我国高等教育日益重视学生的交际能力培养(尤其是专业交际...跨课程写作(Writing Across the Curriculum)教学改革运动兴起于20世纪70年代的美国,对其高等教育中的课程设置、教学方式等影响深远,时至今日也开始为越来越多的国家所借鉴。在我国高等教育日益重视学生的交际能力培养(尤其是专业交际能力、跨文化交际能力)的背景下,该文通过分析阐释跨课程写作教学改革的动因、实施情况、面临的挑战以及对策,试图为国内的高等教育改革(尤其是专业教学改革、外语教学改革)提供一些值得参考的路径。展开更多
文摘The objective of this work is to contribute to the crustal evolution during the Paleoproterozoic in the Northeast of Côte d’Ivoire through the structural study of the Bondoukou-tanda locality. To do this, we proceeded by a macroscopic observation of the outcrops for the identification of the structures (schistosity, fold, shear, and lineation). The structures indicated the direction of the main constraints and the relative correlations between the lithologies. The structural measurements, in particular the direction and the dip obtained, were all processed by the GEOrient software to draw up the stereographic projections for a static interpretation of the measurements. Given the rarity of rock outcrops in the study area, the teleanalytical data were of considerable support in the structural analysis. The various treatments carried out on the ENVI 5.2 software made it possible to identify a total of 471 lineaments. They cover the entire area and are of variable lengths (1.24 to 9.73 km). The different directions highlighted from this methodology are a main direction: NNW-SSE to NW-SE;a secondary direction: NNE-SSW to NE-SW;a tertiary direction: ENE-WSW to E-W. Associated with the lithology map, the teleanalytical map shows that the lineaments are unevenly distributed throughout the study area. The lineaments appear more compact in the volcano-sedimentary and sandstone-conglomeratic units than in the granitoid intrusives. However, the Bondoukou granodiorite appears to be the least fractured lithology.
文摘IEEE PES 2006年度学术会议和国际大电网会议(CIGRE)2006基本上代表了当今电力技术的最高水平和最新研究方向,其论文集对我国电力系统运行和科研工作有较高的参考价值。本文对上述2个会议的论文集进行了综述,主要内容包括动态安全评估、广域量测系统、广域控制系统、系统恢复等方面的研究现状介绍与经验总结。最后结合我国电力系统调度自动化方面的实际情况提出了一些建议。
文摘跨课程写作(Writing Across the Curriculum)教学改革运动兴起于20世纪70年代的美国,对其高等教育中的课程设置、教学方式等影响深远,时至今日也开始为越来越多的国家所借鉴。在我国高等教育日益重视学生的交际能力培养(尤其是专业交际能力、跨文化交际能力)的背景下,该文通过分析阐释跨课程写作教学改革的动因、实施情况、面临的挑战以及对策,试图为国内的高等教育改革(尤其是专业教学改革、外语教学改革)提供一些值得参考的路径。
