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| 1 | Application of high-pressure water jet technology and the theory of rock burst control in roadway显示文摘This paper puts forward using high-pressure water jet technology to control rock burst in roadway, and analyzes the theory of controlling rock burst in roadway by the weak structure zone model. The weak structure zone is formed by using high-pressure water jet to cut the coal wall in a continuous and rotational way. In order to study the influence law of weak structure zone in surrounding rock, this paper numerically analyzed the influence law of weak structure zone, and the disturbance law of coal wall and floor under dynamic and static combined load. The results show that when the distance between high-pressure water jet drillings is 3 m and the diameter of drilling is 300 mm, continuous stress superposition zone can be formed. The weak structure zone can transfer and reduce the concentrated static load in surrounding rock, and then form distressed zone. The longer the high-pressure water jet drilling is, the larger the distressed zone is. The stress change and displacement change of non-distressed zone in coal wall and floor are significantly greater than that of distressed zone under dynamic and static combined load. And it shows that the distressed zone can effectively control rock burst in roadway under dynamic and static combined load. High-pressure water jet technology was applied in the haulage gate of 250203 working face in Yanbei Coal Mine, and had gained good effect. The study conclusions provide theoretical foundation and a new guidance for controlling rock burst in roadway. | Yang Zengqiang Dou Linming Liu Chang Xu Mengtang Lei Zhen Yao Yahu | 2016 | International Journal of Mining Science and Technology2016，26，5： | 18 |
| 2 | Frequency spectrum analysis on micro-seismic signal of rock bursts induced by dynamic disturbance显示文摘Blasting and breaking of hard roof are main inducing causes of rock bursts in coal mines with danger of rock burst,and it is important to find out the frequency spectrum distribution laws of these dynamic stress waves and rock burst waves for researching the mechanism of rock burst.In this paper,Fourier transform as a micro-seismic signal conversion method of amplitude-time character to amplitude-frequency character is used to analyze the frequency spectrum characters of micro-seismic signal of blasting,hard roof breaking and rock bursts induced by the dynamic disturbance in order to find out the difference and relativity of different signals.The results indicate that blasting and breaking of hard roof are high frequency signals,and the peak values of dominant frequency of the signals are single.However,the results indicate that the rock bursts induced by the dynamic disturbance are low frequency signals,and there are two obvious peak values in the amplitude-frequency curve witch shows that the signals of rock bursts are superposition of low frequency signals and high frequency signals.The research conclusions prove that dynamic disturbance is necessary condition for rock bursts,and the conclusions provide a new way to research the mechanism of rock bursts. | XU Xuefeng DOU Linming LU Caiping ZHANG Yinliang | 2010 | Mining Science and Technology2010，20，5： | 6 |
| 3 | Dynamic Evaluation and Analysis of Regional Innovation Capability in Eastern China from the Perspective of High-quality Development显示文摘The economy of China has turned to the stage of high-quality development. In this sense,the connotation of regional innovation capacity should reflect more aspects, such as better economic effectiveness, people-centered philosophy of development and better living conditions. This study aims at establishing the evaluation index system of regional innovation capacity under high-quality perspective.Then the dynamic evaluation method based on gray correlation degree and TOPSIS is improved. And the improved method is applied to evaluate the regional innovation capacity under high-quality development perspective. The results show that: 1) The regional innovation capacity of Jiangsu, Zhejiang,Shanghai and Guangdong under high-quality development perspective is better than other regions,while the regional innovation capacity of Beijing-Tianjin-Hebei is imbalanced. Regional innovation capability of Fujian, Shandong, and Hainan from a high-quality perspective is at the middle and lower levels. 2) From the perspective of development trends, the gap of regional innovation capacity between Beijing, Jiangsu, Zhejiang, Shanghai, Guangdong and Fujian, Hebei, Shandong is gradually narrowing.3) An in-depth analysis of the regional innovation capability of the eastern provinces and cities from the perspective of high-quality development through different dimensions shows that Beijing, Guangdong, Jiangsu perform well in all dimensions, while Fujian and Hainan need to pay more attention to innovation input and the creation of a better innovation environment to enhance innovation output and promote innovation effectiveness. At last, based on above analysis, relevant policy recommendations are proposed. | Linming XU Jincheng LU Meijuan LI Lerong HE | 2021 | Journal of Systems Science and Information2021，9，6： | 2 |
| 4 | Comparison of the therapeutic effects of leflunomide and mycophenolate mofetil in the treatment of immun- oglobulin A nephropathy manifesting with nephritic syndrome显示文摘 | Liu XW Linm Xu Gs | 2010 | Int J Clin pharmacol Ther2010，48，8： | 1 |
| 5 | The Dynamic Characteristics of Silicone Rubber Isolator显示文摘The dynamic stiffness and the specific damping energy, as well as the vibration response characteristics of a silicone rubber isolator were researched. The results of the vibration test showed that the silicone rubber isolator was excellent in the performance of vibration control. The dynamic stiffness and the damping characteristics were non-linear. From the comparison between experimental results and simulation analysis, the displacement transmissibility characteristics of the isolator were obtained. As a result, the dynamic characteristics of the isolator could be accurately described by the quadratic type non-linear terms at small amplitude. | 于连江 LIU Suling YE Linming 黄光速 XU Yuntao | 2012 | Journal of Wuhan University of Technology(Materials Science)2012，27，1： | 1 |
| 6 | Comparison of Transjugular Intrahepatic Portosystemic Shunt (TIPS) Alone Versus TIPS Combined With Embolotherapy in Advanced Cirrhosis: A Retrospective Study显示文摘 | Tianli Xiao Lei Chen Wensheng Chen Baoyan Xu Qingling Long Rongjun Li Linming Li Zhihong Peng Dianchun Fang Rongquan Wang | 2011 | Journal of Clinical Gastroenterology2011，，7： | 1 |
| 7 | Clinicopathological and Genetic Study of an Atypical Renal Hemangioblastoma显示文摘HEMANGIOBLASTOMA(HB),a kind of benign tumor with uncertain histogenesis,is characterized by the presence of stromal cells(SCs)and a rich vascular component.1 It occurs sporadically,except for about 25%of the cases associated with von Hippel-Lindau(VHL)disease.HB typically | Zengxiang Xu Min Xie Xiaomin Li Bing Chen Linming Lu | 2017 | Chinese Medical Sciences Journal2017，32，3： | 1 |
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