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WORLD LEADERS EXTEND CHINESE NEW YEAR GREETINGS

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Good Neighbours 2022年第2期 20-21页

作者： xu donglin(Translated) 不详

On the occasion of the Chinese LunarNew Year,or the Spring Festival,leaders from around the world have sent festive greetings to wish the Chinese people happiness and health and the country prosperity.

关键词：联合国秘书长外国政要幸福安康气候危机特雷斯祝福坚韧不拔繁荣昌盛

ICE&SNOW TOURISM BOOMS IN XINJIANG

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Good Neighbours 2022年第1期 56-61页

作者： Zhang Xiaomi xu donglin(Translated) 不详

Various tourism events throughout winter,such as the ones for winter fishing,rime appreciation,snow and ice tours and winter food court,have become highlights across northwest China's Xinjiang Uygur Autonomous Region.

关键词：冰雪旅游旅游节庆美食节新疆

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智能浮选系统在下峪口选煤厂的应用

选煤技术 2024年第4期52卷 89-95页

作者：孙再征刘新民白霄刘长岳陈警卫陈康许东林中煤西安设计工程有限责任公司陕西西安710054 陕西陕煤韩城矿业有限公司陕西韩城715400

针对浮选系统自动化水平低、缺少实时生产数据、浮选精煤灰分波动大等问题,下峪口选煤厂结合自身实际情况,研发了基于模糊控制的智能浮选系统。该系统主要包括智能控制平台、智能感知系统、智能加药站等,分为数据采集层、数据层、控制... 详细信息

针对浮选系统自动化水平低、缺少实时生产数据、浮选精煤灰分波动大等问题,下峪口选煤厂结合自身实际情况,研发了基于模糊控制的智能浮选系统。该系统主要包括智能控制平台、智能感知系统、智能加药站等,分为数据采集层、数据层、控制逻辑层和人-机交互层。改造后,浮选系统由人工控制变为“机器智能控制+人工巡视”。生产实践表明:智能浮选系统的投运使浮选精煤灰分由9.0%~13.0%稳定至12.0%~13.0%,尾矿发热量由5.02MJ/kg左右降低至4.19MJ/kg以下,精煤产率提高了0.18个百分点,每年创造经济效益729万元。智能浮选系统的应用,稳定了产品质量,实现了降本增效,具有良好的社会效益,可为其他选煤厂浮选系统智能化改造提供有益参考。

关键词：浮选智能浮选系统模糊控制智能感知系统智能加药站浮选精煤灰分尾矿发热量精煤产率

Hyperbolic hierarchical graph attention network for knowledge graph completion

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High Technology Letters 2024年第3期30卷 271-279页

作者： xu Hao CHEN Shudong QI donglin TONG Da YU Yong CHEN Shuai Institute of Microelectronics of Chinese Academy of Sciences Beijing 100029P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China

Utilizing graph neural networks for knowledge embedding to accomplish the task of knowledge graph completion(KGC)has become an important research area in knowledge graph ***,the number of nodes in the knowledge graph increases exponentially with the depth of the tree,whereas the distances of nodes in Euclidean space are second-order polynomial distances,whereby knowledge embedding using graph neural networks in Euclidean space will not represent the distances between nodes *** paper introduces a novel approach called hyperbolic hierarchical graph attention network(H2GAT)to rectify this ***,the paper conducts knowledge representation in the hyperbolic space,effectively mitigating the issue of exponential growth of nodes with tree depth and consequent information ***,it introduces a hierarchical graph atten-tion mechanism specifically designed for the hyperbolic space,allowing for enhanced capture of the network structure inherent in the knowledge ***,the efficacy of the proposed H2GAT model is evaluated on benchmark datasets,namely WN18RR and FB15K-237,thereby validating its *** H2GAT model achieved 0.445,0.515,and 0.586 in the Hits@1,Hits@3 and Hits@10 metrics respectively on the WN18RR dataset and 0.243,0.367 and 0.518 on the FB15K-237 *** incorporating hyperbolic space embedding and hierarchical graph attention,the H2GAT model successfully addresses the limitations of existing hyperbolic knowledge embedding models,exhibiting its competence in knowledge graph completion tasks.

关键词： hyperbolic space link prediction knowledge graph embedding knowledge graph completion(KGC)

Study on the Impact of Imbalance between Transmission Lines on Crosstalk: a Novel Perspective of Displacement Current

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Chinese Journal of Electronics 2024年

作者： Xiaozhu LU Lingnan SONG Hui xu donglin SU School of Electronics and Information Engineering Beihang University Research Institute for Frontier Science Beihang University

This paper systematically studies the impact of imbalances between adjacent lines and effects on crosstalk. A novel perspective of displacement current is introduced to analyze and explain the simulated observations. The imbalances caused by coupling between single-single, single-differential, and differential-differential lines are studied and analyzed by considering the near-field coupling through the generated displacement currents. Measurements are conducted for various cases of coupled adjacent lines. An equivalent model considering the variation of displacement current with geometrical parameters is also proposed, and the corresponding coupling coefficients are extracted based on simulations to characterize the impact of imbalances. The methods and results presented in this paper provide useful guidelines for designing high-speed circuit layouts with closely spaced transmission lines.

关键词：

HYIC捕收剂强化鞍千混合磁选精矿反浮选效果试验

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现代矿业 2024年第1期40卷 148-150,155页

作者：范喜杰王子扬钮展良徐冬林侯英吴前锋盖壮鞍钢集团鞍千矿业有限责任公司辽宁科技大学矿业工程学院鞍山钢铁集团有限公司齐大山选矿厂

鞍千选矿厂为了优化选别工艺中的反浮选效果,取浮选入选的混合磁选精矿进行浮选试验,进行了抑制剂、活化剂、捕收剂用量及常规捕收剂TD-Ⅱ与新型捕收剂HYIC浮选效果对比试验。试验结果表明:固定矿浆pH值为11.5、抑制剂淀粉用量1200 g/t... 详细信息

鞍千选矿厂为了优化选别工艺中的反浮选效果,取浮选入选的混合磁选精矿进行浮选试验,进行了抑制剂、活化剂、捕收剂用量及常规捕收剂TD-Ⅱ与新型捕收剂HYIC浮选效果对比试验。试验结果表明:固定矿浆pH值为11.5、抑制剂淀粉用量1200 g/t、活化剂CaO用量500 g/t、粗选捕收剂用量800 g/t、精选捕收剂用量300 g/t,采用常规捕收剂TD-Ⅱ时,闭路试验获得了精矿铁品位68.20%、铁回收率88.73%的选别指标;采用新型捕收剂HYIC时,闭路试验获得了精矿铁品位68.25%、铁回收率90.04%的选别指标;使用捕收剂HYIC比采用捕收剂TD-Ⅱ所获得的浮选精矿产率、铁品位、铁回收率分别高0.91,0.05,1.31个百分点,捕收剂HYIC可以强化反浮选效果,提高选厂的经济效益。

关键词：捕收剂混合磁选精矿反浮选

Harvesting the Vibration Energy of CdS for High-Efficient Piezo-Photocatalysis Removal of U(Ⅵ):Roles of Shape Dependent and Piezoelectric Polarization

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Energy & Environmental Materials 2024年第5期7卷 391-403页

作者： Zhimin Dong donglin Gao Zifan Li Haonan Pei Lin xu Jian Huang Xiaohong Cao Youqun Wang Ting Wang Qianglin Wei Zhibin Zhang Yunhai Liu State Key Laboratory of Nuclear Resources and Environment East China University of Technology Institute of Geology Chinese Academy of Geological Sciences

Piezo-photocatalysis could coalesce the advantages of mechanical vibration and solar energy perfectly to achieve high-efficiency catalytic activity. Herein,the quintessential piezoelectric material CdS nanowires with different aspect ratios are precisely constructed and applied for piezo-photocatalytic reduction of U（Ⅵ） for the first time. The ultrasonic （60 kHz, 100 W） induces piezoelectric potential to generate a 0.57 eV A-1electric field, which is added to the direction of CdS （010） as a driving force to efficiently separate photogenerated charges. The alliance between piezoelectric effect and photocatalytic activity endows CdS NW-3 with the fastest piezophotocatalytic rate under ultrasonic vibration and 5 W LED irradiation, and the relevant rate constant (0.042 min-1) is about 12 and 53.8 times than that of LED and ultrasonication. More importantly, 93.74%of U（Ⅵ） could be removed from natural uranium mine wastewater. Therefore, this piezophotocatalysis system that reduces U（Ⅵ） to easily separable （UO2）O2·2H2O（s） provides valuable input for disposal applications of radioactive wastewater and broadens the horizons of nuclear energy utilization toward the advancement of carbon neutrality.

关键词： (UO2)O2·2H2O CdS nanowires piezo-photocatalytic piezo-potential U(VI)

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数据挖掘技术在电信客户分析中的应用

微计算机信息 2007年第24期23卷 175-176,85页

作者：徐冬琳苏州职业大学远程教育学院

本文在研究数据挖掘技术和电信客户分析系统的基础上,研究和提出了基于粗糙集等价关系的电信客户分析系统,本系统所采用的核心算法,是结合电信行业特点,对传统Apriori关联规则挖掘算法的改进,利用粗糙集等价关系的概念进行关联规则的挖... 详细信息

本文在研究数据挖掘技术和电信客户分析系统的基础上,研究和提出了基于粗糙集等价关系的电信客户分析系统,本系统所采用的核心算法,是结合电信行业特点,对传统Apriori关联规则挖掘算法的改进,利用粗糙集等价关系的概念进行关联规则的挖掘。构建了其在电信客户分析中的应用模型,并作为某电信公司客户分析系统的核心部件投入使用,取得了较好的应用效果。

关键词：数据挖掘客户分析客户关系管理

Diverse Regulations of Viral and Host Genes in Tomato Germplasms Responding to Tomato Yellow Leaf Curl Virus Inoculation

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Agricultural Biotechnology 2023年第3期12卷 55-57,124页

作者： Wanyu XIAO Jianghua HUANG Xianyu ZHOU Hailong REN Jing ZHANG donglin xu Guangzhou Academy of Agricultural Sciences Guangzhou 510335China College of Agriculture and Biology Zhongkai University of Agriculture and EngineeringGuangzhou 510000China

Tomato yellow leaf curl virus(TYLCV)is the dominating pathogen of tomato yellow leaf curl disease that caused severe loss to tomato production in *** this study,we found that a TYLCV-resistant tomato line drastically reduced the accumulation of viral complementary-sense strand mRNAs but just moderately inhibited that of viral DNA and virion-sense strand ***,two other resistant lines did not have such virus inhibition *** of differential expressed genes showed that the potential host defense-relevant processes varied in different resistant tomatoes,as compared to the susceptible line,suggesting a diversity of tomato TYLCV-resistance mechanisms.

关键词： Tomato yellow leaf curl virus Virus replication Gene expression