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Proceedings of the 3rd International Conference on Information Technologies and Electrical Engineering

作者： Xiangqi Xiao Maotao Yang Rui Huang Liang Yang Yanjiao Huang Wencheng Xiao State Grid Hunan Electric Power Company Limited Power Supply Service Center(Metrology Center) Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology Changsha China Guangzhou Guangjian Construction Engineering Testing Center Co. Ltd. Guangzhou China State Grid Hunan management Training Center Changsha China China Resources Power Holdings Company Limited Shenzhen China

ISBN: (纸本)9781450388665

In view of the increasingly covert and intelligent power theft technology, the industrialization of electricity theft behavior and the gradual penetration into the field of re-electrified energy consumption terminals such as port and shore electricity, this paper establishes a matrix data set for typical industries based on the characteristic extraction technology of electricity consumption behavior.

关键词： Warning Electricity Stealing Re-electrified

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Development of an Intelligent Forensics Device for Stealing Electricity 2020

Development of an Intelligent Forensics Device for Stealing ...

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Proceedings of the 3rd International Conference on Information Technologies and Electrical Engineering

作者： Rui Huang Xiangqi Xiao Wencheng Xiao Maotao Yang Liang Yang Yanjiao Huang State Grid Hunan Electric Power Company Limited Power Supply Service Center(Metrology Center) Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology Changsha China China Resources Power Holdings Company Limited Shenzhen China Guangzhou Guangjian Construction Engineering Testing Center Co. Ltd. Guangzhou China State Grid Hunan management Training Center Changsha China

ISBN: (纸本)9781450388665

in view of the lack of suitable intelligent evidence collection device at home and abroad at present, based on image recognition technology, combined with wireless technology and field measurement technology, this paper develops an intelligent forensics device for stealing electricity to realize intelligent evidence collection. The efficiency of electricity theft disposal is improved effectively.

关键词： Intelligent Stealing electricity Device

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Research on High Loss Area Governance Method Based on Monitoring and Information Dynamic Adaptive Processing technology 2020

Research on High Loss Area Governance Method Based on Monito...

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Proceedings of the 3rd International Conference on Information Technologies and Electrical Engineering

作者： Xiangqi Xiao Rui Huang Maotao Yang Liang Yang Yanjiao Huang Wencheng Xiao State Grid Hunan Electric Power Company Limited Power Supply Service Center(Metrology Center) Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology Changsha China Guangzhou Guangjian Construction Engineering Testing Center Co. Ltd. Guangzhou China State Grid Hunan management Training Center Changsha China China Resources Power Holdings Company Limited Shenzhen China

ISBN: (纸本)9781450388665

In view of the lack of successful cases at domestic and abroad that closely combine the monitoring and anti-theft technology of high loss station area, the combination of line loss management and anti-theft power is not close enough, and the effect on the treatment of high loss station area is less obvious. Based on the technology of monitoring and information dynamic adaptive processing, this paper puts forward a treatment method of high loss station area. This method can realize the intelligent monitoring, early warning of the operation state of high-loss station area and the research and determination of the influence range of power theft, and develop the intelligent anti-power stealing monitoring device, which is the edge computing node, and realize the accurate identification of typical power stealing behaviors with short connection, partial voltage, shunt, zero break and equal shift under the simulation environment.

关键词： Adaptive High Loss Monitoring

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NbC Nanoparticles Decorated Carbon Nanofibers as Highly Active and Robust Heterostructural Electrocatalysts for Ammonia Synthesis

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Angewandte Chemie 2024年第30期136卷

作者： Zhihao Zhang Aihui Niu Yaxin Lv Dr. Haoran Guo Prof. Jun Song Chen Prof. Qian Liu Kai Dong Prof. Xuping Sun Prof. Tingshuai Li School of Materials and Energy University of Electronic Science and Technology of China Chengdu 611731 Sichuan China Department of Chemistry Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education Key Laboratory for Green Organic Synthesis and Application of Hunan Province Xiangtan University Xiangtan 411105 Hunan China Institute for Advanced Study Chengdu University Chengdu 610106 Sichuan China College of Chemistry Chemical Engineering and Materials Science Shandong Normal University Jinan 250014 Shandong China

Transition-metal carbides with metallic properties have been extensively used as electrocatalysts due to their excellent conductivity and unique electronic structures. Herein, NbC nanoparticles decorated carbon nanofibers (NbC@CNFs) are proposed as an efficient and robust catalyst for electrochemical synthesis of ammonia from nitrate/nitrite reduction, which achieves a high Faradaic efficiency (FE) of 94.4 % and a large ammonia yield of 30.9 mg h −1 mg −1 cat. . In situ electrochemical tests reveal the nitrite reduction at the catalyst surface follows the *NO pathway and theoretical calculations reveal the formation of NbC@CNFs heterostructure significantly broadens density of states nearby the Fermi energy. Finite element simulations unveil that the current and electric field converge on the NbC nanoparticles along the fiber, suggesting the dispersed carbides are highly active for nitrite reduction.

关键词： ammonia synthesis transition metal carbide theoretical calculation finite element simulation

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Numerical Study on the Effect of the Manila Seismic Tsunami on the Guangdong Coast——The Nonlinear Effects of Tides and Tsunamis

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Earthquake Research in China 2019年第1期33卷 97-111页

作者： CAO Yonggang LIU Changjian LIU Tongmu FENG Yanqing LIU Yuqiang LIAO Shizhi CHEN Yizhan South China Sea Marine Survey and Technology Center SOA State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin University Key Laboratory of Technology for Safeguarding of Maritime Rights and Interests and Application SOA Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province

The coupling numerical model between astronomical tide and tsunamis was built based on the data of the COMCOT model, which was verified by the Japan "3·11" tsunami. The tsunami source of the Manila seismic tsunami was designed and computed to analyze the risk of tsunami which will happen in the Guangdong coast. According to the results, the maximum quantity of water increasing and the time of the tsunami arriving at the Guangdong seacoast were calculated. The coupling simulation between astronomical tide and tsunamis has significant meaning for evaluating the risk and early-warning of tsunamis in the Guangdong coastal area.

关键词： COMCOT model Earthquake tsunami Manila seismic zone Numerical simulation Guangdong coast

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Targeting mitochondrial dysfunction: Innovative strategies to combat glaucoma neuroinflammation

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Experimental eye research 2025年 257卷 110441页

作者： Wen Lu Zhimin Liao Xinchen Jiang Manjuan Peng Que Deng Xiaoyu Zhou Ming Lu Xuanchu Duan Hunan provincical key laboratory of Neurorestoratology Ophthalmology Department of 921 Hospital of Joint Logistics Support Force People's Liberation Army of China (The Second Affiliated Hospital of Hunan Normal University) Changsha Hunan 410003 P.R.China. Aier Glaucoma Institute Hunan Engineering Research Center for Glaucoma with Artificial Intelligence in Diagnosis and Application of New Materials Changsha Glaucoma Diagnosis and Treatment Technology Innovation Center Changsha Aier Eye Hospital Changsha Hunan Province 410015 China Aier Academy of Ophthalmology Central South University Changsha Hunan Province 410015 China. Hunan provincical key laboratory of Neurorestoratology Ophthalmology Department of 921 Hospital of Joint Logistics Support Force People's Liberation Army of China (The Second Affiliated Hospital of Hunan Normal University) Changsha Hunan 410003 P.R.China. Electronic address: lumingcs163@***. Aier Academy of Ophthalmology Central South University Changsha Hunan Province 410015 China. Electronic address: duanxchu@***.

Glaucomatous optic neuropathy represents a prevalent optic nerve degenerative disease. Neuroinflammation is recognized as a significant mechanism underlying optic nerve damage in glaucoma; however, the precise mechanisms driving neuroinflammation remain largely elusive. Existing studies have indicated that microglia-driven neuroinflammation is pivotal for neuroinflammation onset and progression. Mitochondrial dysfunction, encompassing mitochondrial DNA (mtDNA) damage, metabolic deficiencies, and quality control impairments, is upstream of microglial activation and neuroinflammation. Thus, a deeper comprehension of the link between mitochondrial dysfunction and microglial activation in glaucoma may provide valuable insights into the underlying pathogenesis. As a result of these findings, promising avenues for developing effective interventions to mitigate optic nerve damage and preserve visual function in glaucoma patients have been identified.

关键词： Glaucomatous optic neuropathy Mesenchymal Stem Cells (MSCs) Microglial activation Mitochondrial dysfunction Mitochondrial quality control Neuroinflammation mtDNA damage

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Design and application of Single-Arm Live Working robot System on Transmission Line

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Journal of Physics: Conference Series 2022年第1期2166卷

作者： Su Gu Kang Hu Lanlan Liu Zhihui Li Zhiio Chen Mingming Qiao Wei Jiang Hunan Province Key Laboratory of Intelligent Live Working Technology and Equipment (ROBOT) (State Grid Hunan Transmission Maintenance Company) Changsha Hunan 410100 China Live Inspection and Intelligent Operation Technology State Grid Corporation Laboratory (State Grid Hunan Transmission Maintenance Company) Changsha Hunan 410100 China Wuhan Textile University Hubei Key Laboratory of Digital Textile Equipment Wuhan 430200 China

The power transmission line live working robot walks on the power transmission line through wheels. The robot arm and its end tools carried by the robot body can assist or even replace the manual implementation of live inspection and operation of the power transmission line. It has important theoretical significance and practical application value for improving work efficiency and solving dangerous problems in the operation process. In this paper, a single-arm live working robot is designed and developed for a variety of maintenance tasks on transmission lines. At the same time, a method of autonomous end reconfiguration on transmission line is proposed, so as to automatically realize transmission line inspections and live operation. The robot physical model and the motion planning of the robot manipulator arm for the typical fittings maintenance operation are given. The physical prototype system of the live working robot is developed through the system integration design. Finally, related live working experiments were carried out on the simulation test line so as to verify the feasibility and effectiveness of the single-arm live working robot realize the inspection operation of the power transmission line. The research in this article has important theoretical significance and practical application value for intelligent operation and maintenance management of transmission grids.

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Cross calibration of gamma-ray detectors (GRD) of GECAM-C

arXiv

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arXiv 2023年

作者： Zhang, Yan-Qiu Xiong, Shao-Lin Qiao, Rui Guo, Dong-Ya Peng, Wen-Xi Li, Xin-Qiao Xue, Wang-Chen Zheng, Chao Liu, Jia-Cong Tan, Wen-Jun Wang, Chen-Wei Zhang, Peng Wang, Ping Cai, Ce Xiao, Shuo Huang, Yue Feng, Pei-Yi Li, Xiao-Bo Song, Li-Ming Yi, Qi-Bin Zhao, Yi Guo, Zhi-Wei He, Jian-Jian Li, Chao-Yang Liu, Ya-Qing Gong, Ke Du, Yan-Qi Liu, Xiao-Jing Xie, Sheng-Lun Zhao, Guo-Ying Zhao, Xiao-Yun Zhang, Xiao-Lu Zhang, Zhen Zheng, Shi-Jie Wang, Jin Wen, Xiang-Yang An, Zheng-Hua Zhang, Da-Li Gao, Min Sun, Xi-Lei Liang, Xiao-Hua Yang, Sheng Wang, Jin-Zhou Chen, Gang Zhang, Fan Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China University of Chinese Academy of Sciences Beijing100049 China Institute of Astrophysics Central China Normal University Wuhan430079 China School of Physics and Optoelectronics Xiangtan University Hunan Xiangtan411105 China College of physics Sciences Technology Hebei University No. 180 Wusi Dong Road Lian Chi District Hebei Province Baoding City071002 China Information Science and Technology Southwest Jiaotong University Chengdu610031 China Qufu Normal University Qufu273165 China Department of Astronomy Beijing Normal University Beijing100875 China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal University Guiyang550001 China College of Physics Hebei Key Laboratory of Photophysics Research and Application Hebei Normal University Hebei Shijiazhuang050024 China College of Electronic and Information Engineering Tongji University Shanghai201804 China

The gamma-ray detectors (GRDs) of GECAM-C onborad SATech-01 satellite is designed to monitor gamma-ray transients all over the sky from 6 keV to 6 MeV. The energy response matrix is the key to do spectral measurements of bursts, which is usually generated from GEANT4 simulation and partially verified by the ground calibration. In this work, energy response matrix of GECAM-C GRD is cross-calibrated with Fermi/GBM and Swift/BAT using a sample of Gamma-Ray Bursts (GRBs) and Soft Gamma-Ray Repeaters (SGRs). The calibration results show there is a good agreement between GECAM-C and other reasonably well calibrated instrument (i.e. Fermi/GBM and Swift/BAT). We also find that different GRD detectors of GECAM-C also show consistency with each other. All these results indicate that GECAM-C GRD can provide reliable spectral measurements. Copyright © 2023, The Authors. All rights reserved.

关键词： Gamma rays

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Research on the Fire Hose Burst Issues in the Stator of The Hydraulic Power Plant

Research on the Fire Hose Burst Issues in the Stator of The ...

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International Conference on Mechanical, Control and Computer Engineering (ICMCCE)

作者： Dun Mao Lanlan Liu Wenbo Li Jiran Zhu Junjun Chen Chongwang Tang State Grid Hunan Transmission Maintenance Company Changsha China Hunan Province Key Laboratory of Intelligent Live Working Technology and Equipment (Robot) Live Inspection and Intelligent Operation Technology State Grid Corporation Laboratory Changsha China State Grid Hunan Electric Power Company Limited Research Institute Changsha China

The safety issue of technical water supply pipelines in hydroelectric power plant has been an ingrained problem, especially for the old hydraulic power plants. On the one hand, the original design and manufacture are inferior in quality; on the other hand, as the corrosion aggravates over time, water leakage and seepage frequently arise. In acute cases, the workshop may be flooded and other major accidents may occur accordingly. Starting with an accident that the fire hose of stator broke apart, this paper analysed the causes for pipeline break and presented relevant rectification scheme. It has provided technical guidance for maintaining and reconditioning the same type of water pipes.

关键词： Hoses Corrosion Conferences Pipelines Hydroelectric power generation Hydraulic systems Stators

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Molecular tailoring towards two-dimensional organic crystals at the thickness limit

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Chinese Chemical Letters 2024年

作者： Zhilei Zhang Yanan Sun Xiaosong Shi Xiaozhe Yin Dawei Liu Erjing Wang Jie Liu Yuanyuan Hu Lang Jiang Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China University of the Chinese Academy of Sciences Beijing 100049 China Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Faculty of Materials Science and Engineering Hubei University Wuhan 430062 China Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & International Science and Technology Innovation Cooperation Base for Advanced Display Technologies of Hunan Province School of Physics and Electronics Hunan University Changsha 410082 China

Advances in controllable growth of ultrathin two-dimensional molecular crystals (2DMCs) or even monolayer molecular crystals (MMCs) propelled their application in high-performance, high-sensitivity, low-contact-resistance optoelectronic devices. However, the rational molecular design strategies for materials prone to grow into ultrathin 2DMC or MMC have rarely been addressed. Here, systematically tailoring the π -conjugation and alkyl chain types of asymmetric anthracene derivatives, 2DMCs and even MMCs were obtained under the synergetic regulation of inter- and intralayer interactions. High-quality MMCs were obtained for SAP-C6 by traditional physical vapor transport technique (PVT), and corresponding organic field-effect transistors (OFETs) exhibited high mobility of 3.22 cm 2 V -1 s -1 . In addition, band-like charge transport with low activation energy was achieved by SAP-C6 MMC-OFETs. Furthermore, the SAP-C6 MMC-based device exhibits excellent thermal stability, retaining ∼70% of its initial performance at 140°C in air, which is the first report on the thermal stability of MMC devices. This research highlights the potential of alkyl-substituted asymmetric molecules as a design strategy to achieve ultrathin 2DMC or MMC growth, and improve the mobility and thermal stability in OFETs.

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