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3rd International Conference on Information Technologies and Electrical engineering, ICITEE 2020

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

ISBN: (纸本)9781450388665

in this paper, we extract the data of the knowledge base, marketing business system, power information collection system, integrated power quantity and line loss management system, decompose the data dimension and extract the characteristics of electricity theft, draw the portrait of electricity theft behavior, construct the identification database of electricity theft behavior. © 2020 ACM.

关键词： Information management

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Research on a multi-dimensional intelligent deduction and risk early warning evaluation method of electricity stealing situation 3

Research on a multi-dimensional intelligent deduction and ri...

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3rd International Conference on Information Technologies and Electrical engineering, ICITEE 2020

作者： Xiao, Xiangqi Huang, Rui Yang, Maotao Xiao, Wencheng Yang, Liang Huang, Yanjiao 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

Currently, most researches on anti-electricity stealing technologies have not combined seasonal power consumption features, social and economic information for electric stealing situational warnings, and cannot effectively solve the problem of large workload and low accuracy in manual anti-electricity stealing monitoring. In addition, they cannot provide reliable technical support for front-line staff of electricity consumption inspection and anti-electricity stealing to accurately and efficiently carry out anti-electricity stealing analysis and investigation work. In view of this situation, this paper proposes a multi-dimensional intelligent deduction and risk early warning evaluation method of electricity stealing situation. © 2020 ACM.

关键词： Electric power utilization

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Research on early warning method of electricity stealing in re-electrified energy consumption terminal 3

Research on early warning method of electricity stealing in ...

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3rd International Conference on Information Technologies and Electrical engineering, ICITEE 2020

作者： Xiao, Xiangqi Yang, Maotao Huang, Rui Yang, Liang Huang, Yanjiao Xiao, Wencheng 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. © 2020 ACM.

关键词： Energy utilization

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Development of an intelligent forensics device for stealing electricity 3

Development of an intelligent forensics device for stealing ...

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3rd International Conference on Information Technologies and Electrical engineering, ICITEE 2020

作者： Huang, Rui Xiao, Xiangqi Xiao, Wencheng Yang, Maotao Yang, Liang Huang, Yanjiao 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. © 2020 ACM.

关键词： Image recognition

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Research on high loss area governance method based on monitoring and information dynamic adaptive processing technology 3

Research on high loss area governance method based on monito...

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3rd International Conference on Information Technologies and Electrical engineering, ICITEE 2020

作者： Xiao, Xiangqi Huang, Rui Yang, Maotao Yang, Liang Huang, Yanjiao Xiao, Wencheng 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. © 2020 ACM.

关键词： Crime

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Feasibility study on a multi-dimensional intelligent perception method of electricity stealing situation 3

Feasibility study on a multi-dimensional intelligent percept...

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3rd International Conference on Information Technologies and Electrical engineering, ICITEE 2020

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

ISBN: (纸本)9781450388665

situational awareness technology can effectively improve the operational efficiency of grid and strongly guarantee the safe and stable operation of grid. Its important forecasting and decision support ability are indispensable parts of the smart grid. This article integrates a variety of professional systems, including power marketing system and power acquisition system, combines seasonal weather, social and economic information, and establishes a typical industry power consumption matrix data set and anti-electricity stealing diagnosis model, and proposes a multi-dimensional intelligent situational awareness solution of electricity stealing, which will improve the level of intelligent situational awareness of electricity stealing. © 2020 ACM.

关键词： Decision support systems

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Heterodimensional superlattice with in-plane anomalous Hall effect (vol 609, pg 46, 2021)

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NATURE 2022年第7934期611卷 E1-E1页

作者： Zhou, Jiadong Zhang, Wenjie Lin, Yung-Chang Cao, Jin Zhou, Yao Jiang, Wei Du, Huifang Tang, Bijun Shi, Jia Jiang, Bingyan Cao, Xun Lin, Bo Fu, Qundong Zhu, Chao Guo, Wei Huang, Yizhong Yao, Yuan Parkin, Stuart S. P. Zhou, Jianhui Gao, Yanfeng Wang, Yeliang Hou, Yanglong Yao, Yugui Suenaga, Kazu Wu, Xiaosong Liu, Zheng Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE) School of Physics Beijing Institute of Technology Beijing China State Key Laboratory for Artificial Microstructure and Mesoscopic Physics Frontiers Science Center for Nano-optoelectronics and Collaborative Innovation Center of Quantum Matter Peking University Beijing China Max Planck Institute of Microstructure Physics Halle Germany Shenzhen Institute for Quantum Science and Engineering Southern University of Science and Technology Shenzhen China The Institute of Scientific and Industrial Research Osaka University Osaka Japan School of Materials Science and Engineering Nanyang Technological University Singapore Singapore Advanced Research Institute of Multidisciplinary Science and School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing China CINTRA CNRS/NTU/THALES UMI 3288 Singapore Singapore School of Electrical and Electronic Engineering Nanyang Technological University Singapore Singapore Department of Chemistry National University of Singapore Singapore Singapore Institute of Physics Chinese Academy of Sciences Beijing China Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory HFIPS Anhui Chinese Academy of Sciences Hefei China School of Materials Science and Engineering Shanghai University Shanghai China School of Integrated Circuits and Electronics Beijing Institute of Technology Beijing China Beijing Key Laboratory for Magnetoelectric Materials and Devices Beijing Innovation Center for Engineering Science and Advanced Technology School of Materials Science and Engineering Peking University Beijing China

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Experimental realization and synchronization of a quantum van der Pol oscillator

arXiv

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arXiv 2025年

作者： Li, Yi Xie, Zihan Yang, Xiaodong Li, Yue Zhao, Xingyu Cheng, Xu Peng, Xinhua Li, Jun Lutz, Eric Lin, Yiheng Du, Jiangfeng CAS Key Laboratory of Microscale Magnetic Resonance School of Physical Sciences University of Science and Technology of China Hefei230026 China Anhui Province Key Laboratory of Scientific Instrument Development and Application University of Science and Technology of China Hefei230026 China Hefei National Laboratory University of Science and Technology of China Hefei230088 China Institute of Quantum Precision Measurement State Key Laboratory of Radio Frequency Heterogeneous Integration College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Shenzhen518045 China Institute for Theoretical Physics I University of Stuttgart StuttgartD-70550 Germany Institute of Quantum Sensing School of Physics Zhejiang University Hangzhou310027 China

Classical self-sustained oscillators, that generate periodic motion without periodic external forcing, are ubiquitous in science and technology. The realization of nonclassical self-oscillators is an important goal of quantum physics. We here present the experimental implementation of a quantum van der Pol oscillator, a paradigmatic autonomous quantum driven-dissipative system with nonlinear damping, using a single trapped atom. We demonstrate the existence of a quantum limit cycle in phase space in the absence of a drive and the occurrence of quantum synchronization when the nonlinear oscillator is externally driven. We additionally show that synchronization can be enhanced with the help of squeezing perpendicular to the direction of the drive and, counterintuitively, linear dissipation. We also observe the bifurcation to a bistable phase-space distribution for large squeezing. Our results pave the way for the exploration of self-sustained quantum oscillators and their application to quantum technology. Copyright © 2025, The Authors. All rights reserved.

关键词： Atoms

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Tight tradeoff relation and optimal measurement for multi-parameter quantum estimation

arXiv

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arXiv 2025年

作者： Wang, Lingna Chen, Hongzhen Yuan, Haidong Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Shatin Hong Kong The Hong Kong Institute of Quantum Information Science and Technology The Chinese University of Hong Kong Shatin Hong Kong State Key Laboratory of Quantum Information Technologies and Materials The Chinese University of Hong Kong Shatin Hong Kong Institute of Quantum Precision Measurement State Key Laboratory of Radio Frequency Heterogeneous Integration College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen China Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area Guangdong Shenzhen China

The main challenge in multi-parameter quantum estimation lies in the incompatibility between optimal schemes for different parameters, which leads to nontrivial tradeoffs between the precision limits for estimating different parameters. Understanding and characterizing this tradeoff is essential in determining the ultimate precision limits in multi-parameter quantum estimation, making it a central topic in the field of quantum metrology. In this article, we present an approach that precisely quantifies the tradeoff resulting from incompatible optimal measurements in multi-parameter estimation. We derive a tight analytical tradeoff relation that determines the ultimate precision limits for estimating an arbitrary number of parameters encoded in pure quantum states. Additionally, we provide a systematic methodology for constructing optimal measurements that saturate this tight bound in an analytical and structured manner. To demonstrate the power of our findings, we applied our methodology to quantum radar, resulting in a refined Arthurs-Kelly relation that characterizes the ultimate performance for the simultaneous estimation of range and velocity. This showcases the transformative potential of our findings for many applications in quantum metrology. Copyright © 2025, The Authors. All rights reserved.

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Investigating the interlayer electron transport and its in?uence on the whole electric properties of black phosphorus

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Science Bulletin 2019年第4期64卷 254-260页

作者： Bensong Wan Shaoqiang Guo Jiacheng Sun Yufei Zhang Yuyan Wang Caofeng Pan Junying Zhang Key Laboratory of Micro-nano Measurement Manipulation and Physics (Ministry of Education) School of Physics Beihang University CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences School of Nanoscience and Technology University of Chinese Academy of Sciences Center on Nanoenergy Research School of Physical Science and Technology Guangxi University College of Optoelectronic Engineering Shenzhen University

Two-dimensional(2D) nanomaterials have attracted great attention in next generation electronic and optoelectronic technologies due to the unique layered structure and excellent physical and chemical properties. However, the mechanism of transmission along the vertical direction of 2D semiconductor materials has not been investigated. Here, we use first-principles calculations to explore the bandgap energies along different directions, and fabricate a vertical, a lateral and a mixture-structured black phosphorus field effect transistor(BPFET) to study the electrical characteristics along different directions under variable temperatures. The variable temperature test indicates that the mixture-structured device performs more like a lateral device, while the conductance along the vertical direction is hard to be tuned by temperature and electrical field. The unchanged conductance under electric field and variable temperatures allows the vertical device to act as a fixed resistor, promising possible application for the prospective electronic and optoelectronic devices.

关键词： Black phosphorus Transistor Transmission Vertical Variable temperature

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