Liver perforation caused by modified biliary stent of nasobiliary duct：a case report by JIAO Yuanjun, YIN Yaoxin, LI Guixian, LIU Jikui, LIN Zewei

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Multiperiod Telser’s Safety-First Portfolio Selection with Regime Switching by Chuangwei Lin, Huiling Wu

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Gratitude mediates the effects of power on prosociality by Wei Cai, Ying Yang

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Performance Evaluation of a Small Scale Modular Solar Trigeneration System by Handong Wang

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Adaptive Control of Space Robot Despinning Tumbling Target Using Flexible Brushes by Shengxin Sun, Cheng Wei, Zhuoran Huang, Hao Wu, Haibo Zhang, Jianchun Lu, Yan Du

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An Algorithm Using DBSCAN to Solve the Velocity Dealiasing Problem by Wei Zhao, Qinglan Li, Kuifeng Jin

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Insulin Autoimmune Syndrome: A Systematic Review by MingXu Lin, YuHua Chen, Jie Ning

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Intelligent System of Somatosensory Music Therapy Information Feedback in Deep Learning Environment by Nan Zhao

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Planning Concept for the Circular Economy Industrial Park in Heyuan City by Liu Hengran

“…Then the article selected Heyuan City in Guangdong Province as the object, and evaluate the necessity and feasibility of building a circular economy industrial park by analyzing the policy environment, location conditions, and current situation of general sanitation facilities. …”
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Analysis on Characteristics of Spatial-temporal Precipitation Distribution in Qingyuan Based on Cloud Model by WANG Yan

“…Based on the traditional Mann-Kendall method,this paper analyzes the spatial-temporal precipitation distribution by the cloud model according to the monthly precipitation data (1990—2020) from 38 stations in Qingyuan City,Guangdong province.The results show that:①In the last 30 years,the precipitation in Qingyuan showed an upward trend in the whole year,flood season and non-flood season,especially in the whole year and flood season.②The stability of precipitation was best in non-flood season,less in whole year,and the worst in flood season.The distribution of precipitation was the most discrete throughout the year,followed by flood season,and more concentrated in non-flood season.③The precipitation showed similar spatial distribution in whole year and flood season,increased from northwest to southeast in general,among them the precipitation in Lianzhou City is small,concentrated and stable.In non-flood season,the distribution of precipitation increased from southeast to northwest,among them the precipitation in the south of Qingcheng District is the least and unstable but concentrated;while that in the northeast of Yingde City is large and stable but not concentrated.…”
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Investigation and Assessment of the Influence of Cascaded Hydropower Plants on Fish Resources in the Qiuxiangjiang River by LIU Jie, CHEN Lan, CUI Ke, ZHANG Lijuan, LIU Xieting, LI Xin, HU Guocheng

“…The development of cascaded hydropower plants in middle and small rivers has a significant impact on fish resources,mainly includes the destruction of fish habitat.The Qiuxiangjiang River belongs to the first-class tributary of the Dongjiang River in Guangdong Province.This paper evaluates the present situation of fish resources in the Qiuxiangjiang River by aquatic ecosystem investigation and sampling analysis,and compares it with historical data.The results show that due to cascade hydropower development and other human activities in the Qiuxiangjiang River Basin,the suitable habitat for fish decreases.The species and numbers of fish decrease sharply compared with historical records.The fish population structure is relatively unstable,and the fish diversity also gradually reduces.Therefore,for the cascade hydropower development in middle and small rivers,attention should be paid to overall planning the entire river basin,protecting the integrity of the river's aquatic ecosystem,and strictly requiring hydropower plants to build discharge facilities and strengthen supervision of their operation.…”
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Economic Dependence Relationship and Spatial Stratified Heterogeneity in the Eastern Coastal Economic Belt of China by Xianbo Wu, Xiaofeng Hui

“…Finally, the economically developed provinces maintain strong economic dependence with each other, such as Jiangsu (No. 7), Shandong (No. 9), and Zhejiang (No. 12), and Beijing (No. 1), Guangdong (No. 3), and Shanghai (No. 10). However, the former three provinces are more in the core position of this structure, that is, the other provinces maintain the stronger dependence relationship with these three provinces.…”
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Analysis of Meteorological Drought Cycle Basedon Wavelet Function in Zhanjiang by ZHANG Desheng, CHEN Yafen, TAN Senming

“…Based on monthly rainfall data of 19 stations from 1966 to 2015 in Zhanjiang City, Guangdong Province, which is selected as the research area, this paper conducts the spatial modal decomposition of regional meteorological drought distribution by using the standardized precipitation index of 6 months and the rotated empirical orthogonal function, and calculates the drought period of different spatial modes through wavelet analysis. …”
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The actions for carbon neutrality in the social network of supply chains by Weifeng Zhai, Shujuan Zhang, Yan Zhang, Xuewen Zhang, Hongyan Yang

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"The City’s Charms and Challenges" by P K Leung (translation) by Chris Song

“…In this essay “The City’s Charms and Challenges” 城巿的诱惑·城市的挑战' by P K Leung (alias Ye Si 也斯) published in Zhong Hua Du Shu Bao (《 中华读书报》) in 2013, Leung traces his own journey as he -- just like many other Chinese families -- moved with his family from Guangdong to Hong Kong in 1949, where he grew up, lived and taught, becoming one of the best-known Hong Kong writers. …”
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Influence of Hydraulic Domain on Vibration Control and Overload Prediction of High-Speed Punching Press: Multidomain Modelling and Experiment by Teng Xu, Qinxiang Xia, Xiaoyu Wu, Jiaqi Ran, Feng Gong, Chunying Lee

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Research on the Compilation of Mechanical Design Guided Textbooks Based on Chinese University MOOCs by Zhao Xiuting, Liang Ruotian, Wang Ziyue

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Microstructure and Mechanical Properties of Recycled Aggregate Concrete in Seawater Environment by Pengjun Yue, Zhuoying Tan, Zhiying Guo

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The Optimal Strategies of Risk-Averse Newsvendor Model for a Dyadic Supply Chain with Financing Service by Jianxin Chen

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Application of the HeWuTong System in the Practice of the “River Chief System” by TAO Tao, ZENG Qingbin, HUANG Rong

“…;and a four-level “River Chief System”,regulatory system and technical system for the city,district,street and community are developed to realize the “full supervision,separated patrol and treatment,and intelligent management and control” of river channel in Shenzhen.HeWuTong system is the first intelligent management system for river patrol and management in China,which completely realizes the transformation from “River Chief System” to “river chief rule”,and plays innovative and demonstration role in the management of “River Chief System” in Guangdong Province and even the whole country.…”
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