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109 results on '"Li, Pengxiao"'

1. Unsupervised Conversation Disentanglement with GCN Clustering

Author

Zhang, Wenshan, Wang, Yuanyuan, Guo, Sanchuan, Li, Pengxiao, Zhang, Xi, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Tan, Kay Chen, Series Editor, Qu, Yi, editor, Gu, Mancang, editor, Niu, Yifeng, editor, and Fu, Wenxing, editor

Published
2024
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2. A Key Person Extraction Method for Chat Groups Based on Structure-Aware Graph Neural Network

Author

Zhang, Yiming, Li, Pengxiao, Guo, Sanchuan, Zhang, Ming, Zhang, Xi, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Tan, Kay Chen, Series Editor, Qu, Yi, editor, Gu, Mancang, editor, Niu, Yifeng, editor, and Fu, Wenxing, editor

Published
2024
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3. GDF11 slows excitatory neuronal senescence and brain ageing by repressing p21

Author

Wang, Di-Xian, Dong, Zhao-Jun, Deng, Sui-Xin, Tian, Ying-Ming, Xiao, Yu-Jie, Li, Xinran, Ma, Xiao-Ru, Li, Liang, Li, Pengxiao, Chang, Hui-Zhong, Liu, Longqi, Wang, Fan, Wu, Yang, Gao, Xiang, Zheng, Shuang-Shuang, Gu, Hui-Min, Zhang, Ya-Nan, Wu, Jian-Bin, Wu, Fan, Peng, Yonglin, Zhang, Xiao-Wen, Zhan, Ren-Ya, Gao, Li-Xia, Sun, Qiming, Guo, Xing, Zhao, Xiao-Dong, Luo, Jian-Hong, Zhou, Ruhong, Han, Lei, Shu, Yousheng, and Zhao, Jing-Wei

Published
2023
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12. MIRD: Trigram-Based Malicious URL Detection Implanted with Random Domain Name Recognition

Author

Xiong, Cuiwen, Li, Pengxiao, Zhang, Peng, Liu, Qingyun, Tan, Jianlong, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Liu, Ting, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Niu, Wenjia, editor, Li, Gang, editor, Liu, Jiqiang, editor, Tan, Jianlong, editor, Guo, Li, editor, Han, Zhen, editor, and Batten, Lynn, editor

Published
2015
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30. Experimental and numerical study on the heat transfer and flow performance for the circular tube fitted with drainage inserts

Author

Zhichun Liu, Li Pengxiao, Peng Liu, and Wei Liu

Subjects
Fluid Flow and Transfer Processes, Insert (composites), Materials science, Turbulence, 020209 energy, Mechanical Engineering, Heat transfer enhancement, Flow (psychology), 02 engineering and technology, Mechanics, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Nusselt number, Vortex, Core (optical fiber), Heat transfer, 0202 electrical engineering, electronic engineering, information engineering, 0210 nano-technology
Abstract

In the present study, the heat transfer and flow performance in turbulent flow of the tube fitted with the drainage inserts are investigated. The results show that the new-type insert can lead the fluid at the core to the tube wall, strengthening the mixing of cold and hot fluid. And the insert also generates the vortex to make perturbation in the fluid domain. The experiment investigates the influence of pitch ratio on the Nusselt number and friction factor. The Nusselt number and friction factor both increase with the decrease of pitch ratio. And the pitch ratio of 3.3 is recommended for the insert. Some numerical results validated by the experimental results are also shown in the study to analyze the influence of slant angle on heat transfer and flow performance. The results indicate that 45° is suggested as the best slant angle for the insert. The numerical results of Nu/Nu0, f/f0 and PEC range from 1.82 to 1.94, 6.70 to 7.15 and 0.95 to 1.04, respectively, for the insert with the slant angle of 45˚ and the pitch ratio of 3.3. The results show that the insert is of good performance and the correlations of Nu and f are developed in the study.

Published
2017

31. Numerical study on heat transfer enhancement characteristics of tube inserted with centrally hollow narrow twisted tapes

Author

Gang Chen, Zhichun Liu, Li Pengxiao, and Wei Liu

Subjects
Fluid Flow and Transfer Processes, Insert (composites), animal structures, Materials science, Mechanical Engineering, Heat transfer enhancement, education, Reynolds number, Laminar flow, Mechanics, Condensed Matter Physics, Friction factor, symbols.namesake, Heat transfer, symbols, Tube (fluid conveyance)
Abstract

In this study, a new tube insert, named centrally hollow narrow twisted tape, is developed and its effect on the heat transfer enhancement performance of a tube under laminar flow conditions is numerically simulated. The model defines two study variables—hollow width and clearance—and then incorporates the concept of a unilateral twisted tape; the effect of the number of unilateral twisted tapes on the tube heat transfer performance is then examined. The results show that the tube with cross hollow twisted tape inserts has the best overall heat transfer performance for different hollow widths of the tape. Compared with the conventional twisted tape, the optimum overall heat transfer performance of the new type of tape increases by 28.1%. Clearance, which is defined as the width between the tube and twisted tape, also affects the heat transfer performance. The smaller the clearance, the better is the overall heat transfer performance. For different Reynolds numbers, the number of unilateral twisted tapes that gives the optimum overall heat transfer performance is different. If the Reynolds number increases over 600, the tube can achieve the best overall heat transfer performance when the number of unilateral twisted tapes is 4. Empirical formulas for Nu and f are obtained based on calculation results. The results show that under laminar flow conditions, the cross hollow twisted tape is a very promising high-performance tube insert.

Published
2015

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