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was included in the noise subspace, and this feature was used to construct a projection matrix. Secondly, new covariance matrixes were reconstructed by feature eliminated process, then calculate the projection of the new covariance matrixes on the projection matrix. Finally, the number of source was estimated according to the criterion function constructed by the projection results. The results show......
J. Cent. South Univ. (2019) 26: 3502-3515 DOI: https://doi.org/10.1007/s11771-019-4269-2 Petrogenesis of Middle Triassic andesite in Sayaburi area, Laos: Constraints from whole-rock geochemistry... Survey, Chengdu 610081, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Despite the presence of a large area of andesite in the Sayaburi......
J. Cent. South Univ. (2016) 23: 1439-1448 DOI: 10.1007/s11771-016-3196-8 Sequence of densification and hydrocarbon charging of Xu2 reservoir in Anyue–Hechuan area, Sichuan Basin, China CHEN Cong(陈聪... Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: The sequence of the densification and hydrocarbon charging of the Xu2 reservoir in the Anyue–Hechuan area......
Application and Demonstration of a Series of Rare Earth Drought Resistant Materials in Western Area of China WANG Guoqiang1,WANG Jiachen2 (1.Rare Earth Application Institute in High Technological Zone, Yinchuan 750001, China;2.Beijing General Research Institutes for Nonferrous Metals, Beijing 100088, China) Abstract:The application and effects for a series of rare earth (RE) drought resistant......
section area of the weld nugget with the onion shape. Key words: friction stir welding; transfer volume; onion ring; area of nugget transverse section ...积将不再增大. 图6 焊缝横截面形貌 Fig.6 Morphology of weld cross-section 图7 不同轴肩下压量时的焊核横截面积 Fig.7 Area of nugget transverse section in different pluge depths 2.4 轴肩下压量对金属轴向迁移量的影响 从图7可知,当......
disposal area, China HUANG Nan(黄楠)1, TANG Lu(唐璐)1, ZHU Feng(朱锋)1, WU Chuan(吴川)1,HARTLEY William2, ZHOU Jing-ju(周晶菊)1, XUE Sheng-guo(薛生国)1 1. School of Metallurgy and Environment, Central South... in an abandoned BRDA in Central China. The pioneer plant species at the disposal area were identified, whilst distribution characteristics of salt ions such as Na+, K+, and Ca2+ in plant tissues......
High surface area, high catalytic activity titanium dioxide aerogels prepared by solvothermal crystallizationXian Yue,Junhui Xiang,Junyong Chen,Huaxin Li,Yunsheng Qiu,Xianbo YuCenter of Materials... method to form a high specific surface area aerogel structure,along with an increased active contact site.However,with the inevitable of internal pores collapse in the process of high temperature......
Modified-EISA synthesis of mesoporous high surface area CeO2 and catalytic property for CO oxidation李霞章1,陈丰2,陆晓旺2,倪超英3,陈志刚21. School of Materials Science and Engineering,Jiangsu University2. School... CeO2 particles with high surface area were synthesized using a modified evaporation-induced self assembly(EISA) method which combined citric acid as complexing agent.As-prepared powder and further......
’an 710054, China摘 要:The localization damage and deformation characteristics of multiple rock in mined-out area under thick soil layer were investigated... disturbed process in mined-out area was different, so did the AE density of initial damage and fracture. Some characteristic parameters, including large events, total events, and energy rate, presented......
