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| 1 | Floor heave in the west wing track haulage roadway of the Tingnan Coal Mine: Mechanism and control显示文摘Floor heave of a roadway is a dynamic phenomenon that often happens in the roadways of coal mines. It seriously affects safe production in the coal mine. Floor heave has long been one of the most difficult problems to be resolved during coal mining. An analysis of floor heave in the soft rock surrounding the roadway, and the factors influencing it, allowed the deformation mechanism in the west wing double track haulage roadway of the Tingnan Coal Mine to be deduced. Three types of floor heave are observed there: intumescent floor heave, extrusion and mobility floor heave, and compound floor heave. Control measures are proposed that have been adopted during a recent repair engineering project. Control of the floor heave in the west wing track haulage roadway was demonstrated. The reliability and rationality of a combined support technology including floor anchors, an inverted arch, and anchoring of both sides was verified by mine pressure data and the field observations. Waterproofing measures were also under-taken to assist in the control of floor heave. | Wang Jiong | 2012 | International Journal of Mining Science and Technology2012，22，3： | 18 |
| 2 | Mechanism of energy limit equilibrium of rock burst in coal mine显示文摘随采矿深度的增加,在煤采矿上冲破的岩石的效果正在变得越来越明显,岩石爆炸机制变得越来越复杂。来自许多国家的学者提出了不同机制,但是没有人把合理解释给了冲破的岩石的机制。在这份报纸,基于精力理论,我们学习了矿岩石冲破了的煤的精力限制平衡(ELE ) 。有冲破的岩石的煤缝接被划分成精力限制平衡地区(ELEZ )(A) 和有弹性的地区(B) ;我们也决定了岩石爆炸发生的位置,包括煤缝接的房顶和地板;另外,我们导出在限制宽度和冲破的岩石的出现机制之间的 ELEZ 和数学关系的限制宽度:精力差别功能(EDF ) , w (x)= wj wp 一阶的衍生物 w (x) ,是不到 0。EDF 因此是 monotonically 减少的功能。精力差别功能的图也被决定,通过哪个我们分析了岩石的出现机制爆炸。 | Wang Jiong Yan Yubiao Jiang Zhengjun Qi Ping Chen Chen | 2011 | Mining Science and Technology2011，21，2： | 4 |
| 3 | Floor heave in the west wing track haulage roadway of the Tingnan caol mine:mechanism and control显示文摘 | Wang jiong Guo Zhibiao Yan Yubiao | | 0，，03： | 1 |
| 4 | Effect of Metformin on Lactate Metabolism in Normal Hepatocytes under High Glucose Stress in Vitro显示文摘To study the effect of metformin on lactate metabolism in hepatocytes in vitro under high glucose stress.Method:LO2 hepatocytes was cultured in vitro,hepatocytes were randomly divided into blank control group,25 mmol/L glucose solution,27 mmol/L glucose solution,29 mmol/L glucose solution,31 mmol/L glucose solution,33 mmol/L glucose solution,35 mmol/L glucose solution treatment group,after determining the optimal concentration as 31 mmol/L,use 30 mmol/L metformin solution,and then divided into blank control group,normal hepatocytes+the optimal concentration of glucose solution,normal hepatocytes+metformin solution,normal hepatocytes+.The optimal concentration of glucose solution normal hepatocytes+metformin solution,calculate the number of hepatocytes on cell count plate respectively in the 12 h,24 h,48 h,and use the lactic acid kit to determine the lactic acid value of the cell culture medium of normal liver cells+optimal concentration glucose solution and normal liver cells+optimal concentration glucose solution+metformin solution at 12 h,24 h,and 48 h,respectively.Results:There was no significant change in the lactic acid concentration but significant increase in the number of surviving hepatocytes in the high-glycemic control group compared with that in the high-glycemic control group without metformin.Conclusions:Metformin has no significant effect on lactic acid metabolism of hepatocytes under high glucose stress in vitro,and has a protective effect on hepatocytes under high glucose stress.Based on this,it is preliminarily believed that metformin is not the direct factor leading to diabetic lactic acidosis. | Jianhao Wu Qinnan Zhang Yubiao Yang Chunyue Wang Xindi Yue Zhilu Li Pingping Yan | 2021 | Journal of Advances in Medicine Science2021，4，2： | 0 |
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