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The Reform Scheme of Practice-Courses Cooperation Training Pattern of Software Engineering Major of Overseas Chinese Universities 被引量:2
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作者 Jin Gou Wei Luo +1 位作者 Kongjie Lin yaxuan zhang 《计算机教育》 2018年第12期147-154,共8页
How to improve the employment of software engineering graduates, especially, how to effectively enhance the employment competitiveness of relevant overseas students in the context of "One Belt and One Road" ... How to improve the employment of software engineering graduates, especially, how to effectively enhance the employment competitiveness of relevant overseas students in the context of "One Belt and One Road" is one of the core tasks of overseas Chinese universities. This paper proposes a reform plan for the practical training mode of school-enterprise cooperative project in the software engineering of overseas Chinese universities. The reform plan combines education concepts with practical research and development. It subdivides students and according to the characteristics of different types of students, and is carried out on campus, outside campus(in the province), and abroad(original area), which makes senior undergraduates fully understand the needs of enterprises, constantly improve their professional practice ability, and improve their competitiveness. Thus, the professional innovation and entrepreneurship ability of students is enhanced, and it also reduces the cost of employee entry. 展开更多
关键词 SOFTWARE engineering OVERSEAS students project training
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带有未知内部扰动的星形Euler-Bernoulli梁网络的指数跟踪控制
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作者 张雅轩 许跟起 郭燕妮 《数学物理学报(A辑)》 CSCD 北大核心 2019年第3期596-610,共15页
该文研究了带有未知内部扰动的星形Euler-Bernoulli梁网络的指数跟踪控制问题.首先将该问题等价转化为跟踪网络与被跟踪网络的误差网络的镇定问题.利用滑模控制思想,对误差网络设计了非线性反馈控制方案.通过对状态空间选取适当的范数,... 该文研究了带有未知内部扰动的星形Euler-Bernoulli梁网络的指数跟踪控制问题.首先将该问题等价转化为跟踪网络与被跟踪网络的误差网络的镇定问题.利用滑模控制思想,对误差网络设计了非线性反馈控制方案.通过对状态空间选取适当的范数,运用单调算子理论得到了误差网络的适定性.通过构造适当的Lyapunov函数,证明误差网络按任一收敛率指数稳定.这表明跟踪网络能够按任一给定速率以指数速度跟踪到目标网络. 展开更多
关键词 跟踪控制 未知内部扰动 星形Euler-Bernoulli梁网络 滑模控制 指数镇定
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Geochemical investigation of low latitude black shale intervals of the Lower to Middle Jurassic succession, Indus Basin, Pakistan
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作者 Fahad ALI Shiqi zhang +7 位作者 Muhammad HANIF Mohibullah MOHIBULLAH yaxuan zhang Muhammad USMAN Sheng WANG Xueliang LIU Pengjie MA Dongmou HUANG 《Frontiers of Earth Science》 SCIE CSCD 2022年第3期568-586,共19页
The Lower to Middle Jurassic sedimentary succession is dominated by siliciclastics with a significant amount of black shales in the Indus Basin,Pakistan.Several outcrop samples have been studied using an integrated ap... The Lower to Middle Jurassic sedimentary succession is dominated by siliciclastics with a significant amount of black shales in the Indus Basin,Pakistan.Several outcrop samples have been studied using an integrated approach to interpret the conceptual depositional setting from carbon and oxygen isotopes(δ^(13)C&δ18O),organic geochemistry,and palynofacies with major and trace element analysis.For interpretation of trace element data,various single and elemental ratios have been used in this research to unlock the geological history of the studied strata.Ti/Al is 1.96 for high-potential source rock and 7.82 for non-potential source rock,and Cr(less than 1)indicates low clastic input with low oxygen for stratified and stagnant water.The ratios of V/(V+Cr),V/(V+Ni),V/Mo,V/Ni,(Cu+Mo)/Zn,Mo/Al,isotopic values ofδ^(13)C andδ18O and besides the V/Cr elemental ratio,all proxies indicate that there are oxygen-depleted anoxic conditions at high potentials,while in non-potential source rock,these ratios show oxic to sub-oxic settings.In addition to the trace element correlation with total organic carbon,the influx of organic matter is determined by the palynoafacies analysis,which indicates mixed terrestrial and marine organic influx in high-potential source rock and vice versa.Furthermore,the studies of palynofaceis DFPF A-D and SFPF A-B suggest that the depositional setting of black shale occurred in the anoxic proximal to distal shelf.The results suggest that the regional and local occurrence of black shale during the Lower to Middle Jurassic and its geological condition were addressed,and these play an important role in its depositional and paleooceanographic setting in the Eastern Tethys. 展开更多
关键词 black shale JURASSIC trace elements organic matter Indus Basin Pakistan
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