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您的检索式：作者名="OU Zhonghui"
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| 1 | Fractal characteristics of surface crack evolution in the process of gas-containing coal extrusion显示文摘In this paper, simulated experiment device of coal and gas outburst was employed to perform the experiment on gas-containing coal extrusion. In the experiment, coal surface cracks were observed with a high-speed camera and then the images were processed by sketch. Based on the above description, the paper studied the fractal dimension values from different positions of coal surface as well as their changing laws with time. The results show that there is a growing parabola trend of crack dimension value in the process of coal extrusion. Accordingly, we drew the conclusion that extruded coal crack evolution is a process of fractal dimension value increase. On the basis of fractal dimension values taken from different parts of coal masses, a fractal dimension of the contour map was drawn. Thus, it is clear that the contour map involves different crack fractal dimension values from different positions. To be specific, where there are complicated force and violent movement in coal mass, there are higher fractal dimension values, i.e., the further the middle of observation surface is from the exit of coal mass, and the lower the fractal dimension value is. In line with fractal geometry and energy theory of coal and gas outburst, this study presents the relation between fractal dimension and energy in the process of extruding. In conclusion, the evolution of crack fractal dimension value can signify that of energy, which has laid a solid foundation for the quantification research on the mechanism of gas-containing coal extrusion. | Chen Peng Wang Enyuan Ou Jianchun Li Zhonghui Wei Mingyao Li Xuelong | 2013 | International Journal of Mining Science and Technology2013，23，1： | 12 |
| 2 | Investigation and Study on Plant Communities in Baise Forest Park显示文摘Plant community structures of Baise Forest Park were analyzed through the field investigation. The results showed that there are 76 tree species of 69 genera and 41 families in the park. According to the species diversity analysis, among the 5 subareas recreational area has the highest diversity and evenness indexes, zoo has lower diversity index of plant community. Three-dimensional analysis of plant community shows that the community has simple structures, limited landscape layers and shrub coverage, a few lawn species and poor landscape effect. Analysis of its ecological habits shows that evergreen species in all 5 subareas of the park are more than deciduous species, and there are only a few ornamental tree species. | JIA Guikang OU Zhonghui TANG Gaozhe | 2012 | Journal of Landscape Research2012，4，12： | 1 |
| 3 | Analytical solutions of citrate-phosphate coupled model of rice(Oryza sativa L.)roots显示文摘The citrate secreted by the rice(Oryza sativa L.)roots will promote the absorption of phosphate,and this process is described by the Kirk model.In our work,the Kirk model is divided into citrate sub-model and phosphate sub-model.In the citrate sub-model,we obtain the analytical solution of citrate with the Laplace transform,inverse Laplace transform and convolution theorem.The citrate solution is substituted into the phosphate sub-model,and the analytical solution of phosphate is obtained by the separation variable method.The existence of the solutions can be proved by the comparison test,the Weierstrass M-test and the Abel discriminating method. | Huiping Zhang Sbuyue Wang Zhonghui Ou | 2020 | International Journal of Biomathematics2020，13，7： | 0 |
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