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3,621 results on '"Liang, Rui"'

157. AI Challenger : A Large-scale Dataset for Going Deeper in Image Understanding

Author

Wu, Jiahong, Zheng, He, Zhao, Bo, Li, Yixin, Yan, Baoming, Liang, Rui, Wang, Wenjia, Zhou, Shipei, Lin, Guosen, Fu, Yanwei, Wang, Yizhou, and Wang, Yonggang

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Significant progress has been achieved in Computer Vision by leveraging large-scale image datasets. However, large-scale datasets for complex Computer Vision tasks beyond classification are still limited. This paper proposed a large-scale dataset named AIC (AI Challenger) with three sub-datasets, human keypoint detection (HKD), large-scale attribute dataset (LAD) and image Chinese captioning (ICC). In this dataset, we annotate class labels (LAD), keypoint coordinate (HKD), bounding box (HKD and LAD), attribute (LAD) and caption (ICC). These rich annotations bridge the semantic gap between low-level images and high-level concepts. The proposed dataset is an effective benchmark to evaluate and improve different computational methods. In addition, for related tasks, others can also use our dataset as a new resource to pre-train their models.

Published
2017
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158. Comparison of electromagnetic and optical navigation assisted Endo-TLIF in the treatment of lumbar spondylolisthesis

Author

De-rong Xu, Liang-rui Luan, Xue-xiao Ma, Zhi-chao Cong, and Chuan-li Zhou

Subjects
Endo-TLIF, Electromagnetic navigation, Optical navigation, Diseases of the musculoskeletal system, RC925-935
Abstract

Abstract Uniportal full endoscopic posterolateral transforaminal lumbar interbody fusion (Endo-TLIF) with percutaneous pedicle screw fixation is a promising, minimally invasive method for the treatment of lumbar spondylolisthesis. However, repeated radiation exposure from X-rays and the steep learning curve remain to be improved.

Published
2022
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159. N 2 proportion in GIL based on heat characteristics of gas mixture

Author

PANG Lele, YANG Wenyong, LI Pengfei, GUO Xiaofei, GAO Peng, and LIANG Rui

Subjects
gas-insulated transmission lines (gil), sf 6/n 2 gas mixture, gas component, gas insulation, finite element method, heat characteristics analysis, Applications of electric power, TK4001-4102
Abstract

SF 6/N 2 gas mixture is considered as one of the most promising gases to replace SF 6 because of its good insulation performance and environmental benefits. However,there is a lack of research on the mixing ratio of SF 6/N 2 gas mixture in different conditions. Under the premise of ensuring the insulation level of gas-insulated transmission lines (GIL),a multi-physical field coupling calculation model is established. From the perspective of heat characteristics of gas mixture,the relationship between SF 6/N 2 mixing ratio and GIL temperature rise under different insulating gas pressure,load current and ambient temperature is analyzed to determine the appropriate SF 6/N 2 mixture ratio under different conditions. The results show that there is a negative correlation between the insulation gas pressure (or the SF 6 content) and GIL temperature rise at the same pressure. The SF 6 content is suggested to be in the range of 40%~60% when the load current exceeds 3 kA for a long period of time,40%~70% when the equipment is running in the middle and low latitudes,and 30%~40% when the equipment is in the high latitudes. In addition,considering the safety margin,the insulation and temperature rise requirements of GIL can be met when SF 6 content is not less than 70% of the recommended value.

Published
2022
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178. Human pluripotent stem-cell-derived islets ameliorate diabetes in non-human primates

Author

Du, Yuanyuan, Liang, Zhen, Wang, Shusen, Sun, Dong, Wang, Xiaofeng, Liew, Soon Yi, Lu, Shuaiyao, Wu, Shuangshuang, Jiang, Yong, Wang, Yaqi, Zhang, Boya, Yu, Wenhai, Lu, Zhi, Pu, Yue, Zhang, Yun, Long, Haiting, Xiao, Shanshan, Liang, Rui, Zhang, Zhengyuan, Guan, Jingyang, Wang, Jinlin, Ren, Huixia, Wei, Yanling, Zhao, Jiaxu, Sun, Shicheng, Liu, Tengli, Meng, Gaofan, Wang, Le, Gu, Jiabin, Wang, Tao, Liu, Yinan, Li, Cheng, Tang, Chao, Shen, Zhongyang, Peng, Xiaozhong, and Deng, Hongkui

Published
2022
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189. University Teacher Service Platform Integrated with Academic Social Network

Author

Xiong, Dan, Qiu, Lunjie, Xu, Qing, Liang, Rui, Li, Jianguo, Tang, Yong, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Xing, Chunxiao, editor, Fu, Xiaoming, editor, Zhang, Yong, editor, Zhang, Guigang, editor, and Borjigin, Chaolemen, editor

Published
2021
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190. Extreme Learning Machine Based on Double Kernel Risk-Sensitive Loss for Cancer Samples Classification

Author

Niu, Zhen-Xin, Ren, Liang-Rui, Zhu, Rong, Kong, Xiang-Zhen, Gao, Ying-Lian, Liu, Jin-Xing, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Huang, De-Shuang, editor, Jo, Kang-Hyun, editor, Li, Jianqiang, editor, Gribova, Valeriya, editor, and Hussain, Abir, editor

Published
2021
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199. Enhanced interface and thermal insulation in cement composites using polydopamine-modified hydrophobic silica aerogels.

Author

Tang, Jinzhu, Ju, Guangxu, Zheng, Tingyun, Liang, Rui, and Sun, Guoxing

Subjects
INSULATING materials, CONSTRUCTION materials, SODIUM dodecyl sulfate, CEMENT slurry, COMPRESSIVE strength, FOAM
Abstract

Silica aerogels (SA) have exceptional thermal insulation capabilities, however, their superhydrophobic nature hinders the formation of a uniform composite when combined with cement slurry. To address this issue, an aqueous solution was employed to disperse SA particles using sodium dodecyl sulfate (SDS). Subsequently, the dispersed micelles were coated with polydopamine (PDA) through in situ polymerization. This approach effectively enhanced the dispersion of SA in cement slurry and improved its connection force with the cement hydration products, thereby mitigating the adverse effects of aggregated SA on the mechanical properties of the cement composite. The successful PDA coating led to the formation of smaller aggregated micelles, resulting in a 30% improvement in compressive strength of cement composites containing modified SA compared to those using unmodified SA, while maintaining the desired thermal conductivity properties. With a strategic increase in the quantity of modified SA, a remarkable thermal conductivity of 0.1351 W/m·K was achieved without significantly compromising the compressive strength, which reached about 13.94 MPa. This enhanced compressive strength surpassed that of conventional thermal insulation materials like expanded polystyrene (EPS) and foam concrete. Consequently, this novel technique has the potential to markedly enhance the thermal insulation of cement composites without excessively impacting their compressive strength, thus contributing to the development of green insulation and energy-saving building materials. [ABSTRACT FROM AUTHOR]

Published
2024
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200. Essence of electrochemical prelithiation of the silicon anode: from the interface to the bulk phase.

Author

Li, Yuchen, Lv, Linze, Liang, Rui, Wang, Longfei, Wang, Yan, Qu, Qunting, Shen, Ming, and Zheng, Honghe

Abstract

When Si anode is implemented in lithium-ion cells, prelithiation is a prerequisite for improving the Si anode's electrochemical performance. In this situation, there is a great need to deeply understand the mechanisms related to prelithiation. Herein, the essence of electrochemical prelithiation of Si anode is revealed through combined studies of full cells against a NCM523 cathode. After 100 cycles against the NCM523 cathode, SEI formation makes up for 924.2 mA h g−1 of the capacity loss for the Si anode without prelithiation. After prelithiation, the lithium consumption from SEI growth is significantly reduced by 61.4%. More importantly, prelithiation plays a significant role in stabilizing the bulk phase of the Si anode, which is realized by the mitigated volume change with the prestored Li and the construction of a stable mosaic nanostructure by LiF and lithium silicate doping. For the full cell after 100 electrochemical cycles, the 858.5 mA h g−1 theoretical specific capacity of the trapped Li within the Si particles without prelithiation was reduced down to 414.9 mA h g−1 after prelithiation. These results shed new light on the prominent roles of prelithiation on the interface and the bulk Si phase, which is of key importance for optimizing Si-based anodes. [ABSTRACT FROM AUTHOR]

Published
2024
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