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531 results on '"Li Zixiang"'

1. Study on influence of advanced deep-hole blasting pre-splitting roof on stability of gob side entry retaining

Author

Hu Tao, Hou Gongyu, Li Zixiang, Li Zhuhe, Xie Bingbing, Chen Jianpeng, and Cui Yongke

Subjects
deep hole blasting roof cutting, gob side entry retaining, side supporting retaining wall, numerical simulation, Engineering geology. Rock mechanics. Soil mechanics. Underground construction, TA703-712, Mining engineering. Metallurgy, TN1-997
Abstract

In order to smoothly implement gob-side entry retaining and mining without coal pillar in 3207 working face of Nanyang Coal Mine,Shanxi Province,this paper proposes to carry out advanced deep-hole blasting pre-splitting roof near gob side supporting wall.Through numerical simulation and field industrial test,the influence of deep-hole blasting roof cutting on surrounding rock stability of gob-side retaining roadway is studied.Based on the backdrop of retaining roadway along goaf in 3207 working face of Nanyang coal mine,a numerical simulation model was established,the displacement of roof and floor,wall and coal body of retained roadway,the stress distribution and variation of surrounding rock of retaining roadway were calculated.The numerical calculation shows that the variation of stress and displacement of surrounding rock in gob-side retaining roadway decreases greatly after roof cutting,and the stability of surrounding rock is improved significantly.The field industrial test results show that deep-hole blasting roof cutting can effectively eliminate the rotational extrusion damage of cantilever beam roof to surrounding rock of gob-side retaining roadway,and help to maintain the stability and integrity of gob-side retaining roadway structure.The research results of this paper can be used for reference in the design and construction of gob-side entry retaining project.

Published
2019
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15. Status of Research and Application Cases in Intelligent Shipping

Author

Xu, Jiayi, Li, Zixiang, Sha, Haifei, Wu, Shiqiang, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Li, Yun, editor, Hu, Yaan, editor, Rigo, Philippe, editor, Lefler, Francisco Esteban, editor, and Zhao, Gensheng, editor

Published
2023
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16. Analysis of Piano Key Weir Drainage Characteristics

Author

Li, Zixiang, Xu, Jiayi, Li, Yanfu, Han, Changhai, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Li, Yun, editor, Hu, Yaan, editor, Rigo, Philippe, editor, Lefler, Francisco Esteban, editor, and Zhao, Gensheng, editor

Published
2023
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22. Tumor burden with AFP improves survival prediction for TACE-treated patients with HCC: An international observational study

Author

Xia, Dongdong, Bai, Wei, Wang, Qiuhe, Chung, Jin Wook, Adhoute, Xavier, Kloeckner, Roman, Zhang, Hui, Zeng, Yong, Sripongpun, Pimsiri, Nie, Chunhui, Kim, Seung up, Huang, Ming, Hu, Wenhao, Ding, Xiangchun, Yin, Guowen, Li, Hailiang, Zhao, Hui, Bronowicki, Jean-Pierre, Li, Jing, Li, Jiaping, Zhu, Xiaoli, Wu, Jianbing, Zhang, Chunqing, Gong, Weidong, Li, Zixiang, Lin, Zhengyu, Xu, Tao, Yin, Tao, Anty, Rodolphe, Song, Jinlong, Shi, Haibin, Shao, Guoliang, Ren, Weixin, Zhang, Yongjin, Yang, Shufa, Zheng, Yanbo, Xu, Jian, Wang, Wenhui, Zhu, Xu, Fu, Ying, Liu, Chang, Kaewdech, Apichat, Ding, Rong, Zheng, Jie, Liu, Shuaiwei, Yu, Hui, Zheng, Lin, You, Nan, Fan, Wenzhe, Zhang, Shuai, Feng, Long, Wang, Guangchuan, Zhang, Peng, Li, Xueda, Chen, Jian, Zhang, Feng, Shao, Wenbo, Zhou, Weizhong, Zeng, Hui, Cao, Gengfei, Huang, Wukui, Jiang, Wenjin, Zhang, Wen, Li, Lei, Feng, Aiwei, Wang, Enxin, Wang, Zhexuan, Han, Dandan, Lv, Yong, Sun, Jun, Ren, Bincheng, Xia, Linying, Li, Xiaomei, Yuan, Jie, Wang, Zhengyu, Luo, Bohan, Li, Kai, Guo, Wengang, Yin, Zhanxin, Zhao, Yan, Xia, Jielai, Fan, Daiming, Wu, Kaichun, Bettinger, Dominik, Vogel, Arndt, and Han, Guohong

Published
2024
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33. Optimal time point of response assessment for predicting survival is associated with tumor burden in hepatocellular carcinoma receiving repeated transarterial chemoembolization

Author

Xia, Dongdong, Wang, Qiuhe, Bai, Wei, Wang, Enxin, Wang, Zhexuan, Mu, Wei, Sun, Junhui, Huang, Ming, Yin, Guowen, Li, Hailiang, Zhao, Hui, Zhang, Chunqing, Li, Jing, Wu, Jianbing, Zhu, Xiaoli, Yang, Shufa, Pan, Xingnan, Li, Jiaping, Li, Zixiang, Xu, Guohui, Shi, Haibin, Zhang, Hui, Zhang, Yuelin, Ding, Rong, Yu, Hui, Zheng, Lin, Yang, Xiaohu, Wang, Guangchuan, You, Nan, Feng, Long, Zhang, Shuai, Huang, Wukui, Xu, Tao, Fan, Wenzhe, Li, Xueda, Yang, Xuegang, Zhou, Weizhong, Wang, Wenjun, Li, Xiaomei, Wang, Zhengyu, Luo, Bohan, Niu, Jing, Yuan, Jie, Lv, Yong, Li, Kai, Guo, Wengang, Yin, Zhanxin, Fan, Daiming, Xia, Jielai, and Han, Guohong

Published
2022
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36. THU-475 Tumor burden incorporating AFP improves survival prediction for patients with HCC undergoing TACE: an international multicentre observational study

Author

Xia, Dongdong, primary, Bai, Wei, additional, Wang, Qiuhe, additional, Chung, Jin Wook, additional, Adhoute, Xavier, additional, Kloeckner, Roman, additional, Zhang, Hui, additional, Zeng, Yong, additional, Sripongpun, Pimsiri, additional, Nie, Chunhui, additional, Kim, Seung Up, additional, Huang, Ming, additional, Hu, Wenhao, additional, Ding, Xiangchun, additional, Yin, Guowen, additional, Li, Hailiang, additional, Zhao, Hui, additional, Li, Jing, additional, Li, Jiaping, additional, Zhu, Xiaoli, additional, Wu, Jianbing, additional, Zhang, Chunqing, additional, Gong, Weidong, additional, Li, Zixiang, additional, Lin, Zhengyu, additional, Xu, Tao, additional, Yin, Tao, additional, Song, Jinlong, additional, Shi, Haibin, additional, Shao, Guoliang, additional, Ren, Weixin, additional, Zhang, Yongjin, additional, Yang, Shufa, additional, Zheng, Yanbo, additional, Xu, Jian, additional, Wang, Wenhui, additional, Zhu, Xu, additional, Bettinger, Dominik, additional, Vogel, Arndt, additional, and Han, Guohong, additional

Published
2024
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47. Evaluation of Water Quality and Eutrophication of Typical Lakes in Southeast Hubei, China.

Author

Leng, Mingkai, Wu, Xiaodong, Ge, Xuguang, Yang, Xiaoqing, Huang, Zhi, Liu, Haoran, Zhu, Jiali, Li, Jinge, Gong, Mengting, Sun, Zhepeng, and Li, Zixiang

Abstract

Field surveys and sample analyses were conducted from January 2018 to December 2019 on Daye Lake, Cihu Lake, Baoan Lake, and Xiandao Lake to understand the water quality characteristics of typical lakes in southeast Hubei. A fuzzy comprehensive evaluation was conducted and the comprehensive trophic level index was applied to evaluate the lakes' water quality. The results showed differences in the regional, spatial, and temporal distributions of physical and chemical indicators in typical lakes in southeast Hubei. The fuzzy comprehensive evaluation showed that the water quality levels in Daye, Cihu, Baoan, and Xiandao Lakes for 2018 and 2019 were IV, IV, III, and II and V, IV, III, and II, respectively, with seasonal variations in water quality occurring during the year. The trophic level index results showed that Cihu Lake was mildly eutrophic in 2018 and moderately eutrophic in 2019, and Daye, Baoan, and Xiandao Lakes were mildly eutrophic, mildly eutrophic, and mesotrophic, respectively. Lake water quality was influenced by land use types, landscape configuration, inflowing rivers, precipitation, and interactions between land use and seasons. This study helps us to understand the trend and causes of lake pollution in Southeast Hubei, which is conducive to watershed management and the control of water quality deterioration, and also has an important role in regulating the sustainable development of industry and agriculture in the watershed. [ABSTRACT FROM AUTHOR]

Published
2024
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48. Investigating the Energy Dissipation Mechanism of Piano Key Weir: An Integrated Approach Using Physical and Numerical Modeling.

Author

Li, Zixiang, Yang, Fan, Han, Changhai, Fan, Ziwu, Yu, Kaiwen, Han, Kang, and Wu, Jingxiu

Subjects
ENERGY dissipation, HYDRAULIC structures, HYDRAULIC engineering, ENERGY research, ENERGY consumption
Abstract

The enormous energy carried by discharged water poses a serious threat to the Piano Key Weir (PKW) and its downstream hydraulic structures. However, previous research on energy dissipation in PKWs has mainly focused downstream effects, and the research methods have been largely limited to physical model experiments. To deeply investigate the discharge capacity and hydraulic characteristics of PKW, this study established a PKW model with universally applicable geometric parameters. By combining physical model experiments and numerical simulations, the flow pattern of the PKW, the discharge at the overflow edges, and the variation in the energy dissipation were revealed for different water heads. The results showed that the discharge of the side wall constitutes the majority of the total discharge at low water heads, resulting in a relatively high overall discharge efficiency. As the water head increases, the proportion of discharge from the inlet and outlet keys increases, while the proportion from the side wall decreases. This change results in less discharge from the side wall and a consequent reduction in the overall discharge efficiency. The PKW exhibits superior energy dissipation efficiency under low water heads. However, this efficiency exhibits an inverse relationship with an increasing water head. The overall energy dissipation efficiency can reach 40% to 70%. Additionally, the collision of the water flows inside the outlet chamber and the mixing of the overflow jet play a primary role in energy dissipation. The findings of this study have significant implications for hydraulic engineering construction and PKW operational safety. [ABSTRACT FROM AUTHOR]

Published
2024
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49. 2D Nesting and Scheduling in Metal Additive Manufacturing

Author

Kucukkoc, Ibrahim, Li, Zixiang, Li, Qiang, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Rossit, Daniel Alejandro, editor, Tohmé, Fernando, editor, and Mejía Delgadillo, Gonzalo, editor

Published
2021
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