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arXiv 2020年

作者： Zhang, Yang Hu, Changhui Lu, Xiaobo School of Automation Southeast University Nanjing210096 China Key Laboratory of Measurement and Control of CSE Ministry of Education Southeast University Nanjing210096 China Faculty of Engineering and Information Technology University of Technology Sydney UltimoNSW2007 Australia

The technology of vehicle and driver detection in Intelligent Transportation System(ITS) is a hot topic in recent years. In particular, the driver detection is still a challenging problem which is conductive to supervising traffic order and maintaining public safety. In this paper, an algorithm based on YOLOv3 is proposed to realize the detection and classification of vehicle, driver and people on highway, so as to achieve the purpose of distinguishing driver and passenger and form a one-to-one correspondence between vehicles and drivers. The proposed model and contrast experiment are conducted on our self-build traffic driver’s face database. The effectiveness of our proposed algorithm is validated by extensive experiments and verified under various complex highway conditions. Compared with other advanced vehicle and driver detection technologies, the model has a good performance and is robust to road blocking, different attitudes and extreme lighting. Copyright © 2020, The Authors. All rights reserved.

关键词： Intelligent systems

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Correction: Common Subtype of Small Renal Mass MR Imaging Characterisation: A Medical Center Experience in Taiwan

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Journal of Medical and Biological engineering 2023年第4期43卷 495-496页

作者： Liu, Ming-Cheng Liu, Yi-Jui Lin, Yen-Ting Hung, Siu-Wan Chai, Jyh-Wen Chan, Si-Wa Chiu, Kun-Yuan Chang, Chih-Hao Tsou, Ya-Ling Department of Radiology Taichung Veterans General Hospital Taichung Taiwan Ph.D. Program of Electrical and Communications Engineering Feng Chia University Taichung Taiwan Department of Automatic Control Engineering Feng Chia University Taichung Taiwan Institute of Clinical Medicine National Yang-Ming University Taipei Taiwan Department of Veterinary Medicine National Chung Hsing University Taichung Taiwan School of Medical Imaging and Radiological Sciences Chung Shan Medical University Taichung Taiwan Department of Medical Imaging Taichung Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Taichung Taiwan School of Medicine Tzu Chi University Hualien Taiwan Department of Medical Imaging Radiological Science Central Taiwan University of Science and Technology Taichung Taiwan Division of Urology Department of Surgery Taichung Veterans General Hospital Taichung Taiwan Department of Applied Chemistry National Chi Nan University Nantou Taiwan Nagoya University Nagoya Japan

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Noncontact Current Source Reconstruction Based on Independent Component Analysis-A Simulation Study

Noncontact Current Source Reconstruction Based on Independen...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Nyaaba, Ayambire Patrick Huang, Qi Li, Jian Pan, Siming Gao, Bin Tian, Guiyun Zhang, Shijun Xiao, Bin Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China Chengdu611731 China School of Automation Engineering University of Electronic Science and Technology of China Chengdu611731 China No. 9 Research Institute China Electronic Technology Group China

ISBN: (纸本)9781728135205

This paper implemented a current reconstruction system based on independent component analysis and magnetic field sensors. In this paper both the normal approximation and interfered approximation of magnetic flux density generated by current carrying conductors and sensed by four magnetic sensors are presented and discussed. The output voltage of the sensor array with and without interference was calculated based on the comprehensive independent component analysis algorithm. The relative reconstruction error based on the algorithm for array output voltage are within acceptable levels for protective devices proving the feasibility of the algorithm for source reconstruction. © 2019 IEEE.

关键词： Independent component analysis

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Height and attitude tracking control of an unmanned helicopter via a HDOB-backstepping composite control method

Height and attitude tracking control of an unmanned helicopt...

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2019 Jiangsu Annual Conference on Automation, JACA 2019

作者： Han, Ling Wang, Xiangyu Li, Shihua Liu, Jiyu School of Automation Southeast University Nanjing210096 China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education China Aviation Key Laboratory of Science and Technology on Aircraft Control Facri Xian710065 China

This study studies the height and attitude tracking control problem of an unmanned helicopter system with disturbances. A composite controller based on the combination of harmonic disturbance observers and backstepping technique is proposed to achieve asymptotic tracking for height and attitude. Firstly, harmonic disturbance observers (HDOB) are designed to estimate the unknown disturbances affecting each channel. Then, a composite controller is proposed by integrating the backstepping control technique and the HDOB technique together to achieve the height and attitude tracking goal. Stability analysis of the closed-loop system is given. Finally, numerical simulations are presented to verify the efficiency of the proposed control scheme. © 2019 Institution of engineering and technology. All rights reserved.

关键词： Backstepping

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Synthesis of Agomelatine by One-pot Catalytic Hydrogenation and Acetylation with NiO

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Journal of Wuhan University of technology(Materials Science) 2019年第2期34卷 453-458页

作者： YU Zhijun CHENG Zhengzai XIE Cong ZENG Sheng DENG Haiying LIU Panpan HU Hai LI Guangyao DING Ling Mario Gauthier LI Shiqian School of Medicine Wuhan University of Science and TechnologyWuhan 430065China Non-power Nuclear Technology Research and Development Center Hubei University of Science and TechnologyXianning 437100China The State Key Laboratory of Refractories and Metallurgy(Wuhan University of Science and Technology) Wuhan 430081China Coal Conversion and New Carbon Materials Hubei Key Laboratory School of Chemistry and Chemical EngineeringWuhan University of Science and TechnologyWuhan 430081China Key Laboratory of Measurement and Control System for Offshore Environment Fuqing Branch of Fujian Normal UniversityFuqing 350300China

Nano-NiO and bulk NiO were prepared from Ni(AC)_2·4 H_2O by coordination precipitation using aqueous ammonia and by a solid state reaction, respectively. The nickel oxide particles were characterized by X-ray Diffraction(XRD) and scanning electron microscopy(SEM). The results indicate that nano-sized NiO has a crystal phase with a standard face-centered cubic lattice structure, with a mean particle diameter of about 10 nm. The evaluation of the activity of nickel oxide nanoparticles in the catalytic hydrogenation of 7-methoxy-1-naphthylacetonitrile was carried out. The results demonstrate the efficient synthesis of the title compound by a one-pot catalytic hydrogenation and acetylation with NiO. The NiO nanoparticles displayed superior catalytic activity in the synthesis of agomelatine in the one-pot *** total yield of agomelatine is over 81.8% with a purity of 99.2%, as determined by HPLC. The structure of agomelatine was confirmed by IR, MS, and 1 H NMR analysis.

关键词： nano-NiO homogeneous precipitation method catalytic hydrogenation agomelatine N-[2-(7-Methoxy-1-naphthyl)ethyl]acetamide 7-Methoxy-1-naphthylacetonitrile

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A Green Paradigm for Internet of Things: Ambient Backscatter communications

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China communications 2019年第7期16卷 109-119页

作者： Wei Zhang Yao Qin Wenjing Zhao Minzheng Jia Qiang Liu Ruisi He Bo Ai Science and Technology on Information Systems Engineering Laboratory National University of Defense Technology and also with Institute of Telecommunication Satellites China Academy of Space Technology (CAST) Beijing Key Lab of Transportation Data Analysis and Mining Beijing Engineering Research Center of High-Speed Railway Broadband Mobile Communications School of Computer and Information Technology Beijing Jiaotong University Beijing 100044 China Department of Information Engineering Beijing Polytechnic College Beijing 100042 China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing 100044 China

Internet of Things (IoT) has attracted extensive interest from both academia and industries, and is recognized as an ultimate infrastructure to connect everything at anytime and anywhere. The implementation of IoT generally faces the challenges from energy constraint and implementation cost. In this paper, we will introduce a new green communication paradigm, the ambient backscatter (AmBC), that could utilize the environmental wireless signals for both powering a tiny-cost device and backscattering the information symbols. Specifically, we will present the basic principles of AmBC, analyze its features and advantages, suggest its open problems, and predict its potential applications for our future IoT.

关键词： ambient backscatter (AmBC) RF-powered device Internet of Things (IoT) battery-free tag wire-less sensor

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Spatio-temporal characteristics of genotoxicity in the Yangtze River under the background of COVID-19 pandemic

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Frontiers of Environmental Science & engineering 2024年第11期 122-133页

作者： Wang Xinge Li Na Han Yingnan Li Xiao Qi Weixiao Li Jian Rao Kaifeng Wang Zijian Wei Yanjie Ma Mei Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Yangtze Eco-Environment Engineering Research Center China Three Gorges Corporation Beijing 100038 China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery Beijing 100085 China University of Chinese Academy of Sciences Beijing 100049 China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education College of Water Sciences Beijing Normal University Beijing 100875 China Key Laboratory of Environmental Protection in Water Transport Engineering Ministry of Communications Tianjin Research Institute of Water Transport Engineering Tianjin 300456 China

● Genotoxicity was higher in upper Yangtze River than that in the lower reaches.● COVID-19 changed the seasonal regularity of genotoxicity in lower Yangtze River.● Water samples exhibited more pronounced genotoxicity compared to sediments.● Direct genotoxicity being the primary factor and related to antiviral drugs and DBPs.● 65% or 71% of water posed high or medium risk forParamecium caudatumorDanio *** global spread of viruses can lead to the release of large amounts of disinfectants or antiviral drugs into the water environment. The resulting disinfection byproducts (DBPs) and residual antiviral drugs, acting as genotoxic substances or their precursors, may pose risks to aquatic animals and drinking water sources; however, to date, no studies have analyzed the changes in genotoxicity in the Yangtze River before and after the epidemic. In the present study, water and sediment samples from the Yangtze River were collected during different seasons, just before and after the outbreak of COVID-19, and were assessed using the SOS/umu test (with and without liver S9). The results indicated that water samples exhibited more pronounced genotoxicity than did sediments, with direct genotoxicity being the primary factor. Additionally, there were significant regional differences, with notably greater genotoxicity observed in the upper Yangtze River than in the lower reaches before the COVID-19 epidemic. However, this trend was reversed six to ten months later, suggesting the accumulation of DBPs or antiviral drugs after the COVID-19 pandemic. Moreover, the risk quotient indicated that 65% of the water samples posed a high risk forParamecium caudatum, whereas 71% of the samples posed a medium risk forDanio rerio, thereby representing a potential threat to the ecological security of the Yangtze River. In conclusion, this study, at the basin scale, revealed the impacts of COVID-19 on the Yangtze River, highlighting the need to prevent DBPs and pharmaceutical pollut

关键词： Yangtze River COVID-19 Genotoxicity Spatio-temporal characteristics

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Comprehensive assessment of natural estrogens in poultry eggs: Implications for health risks and dietary intervention strategies

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Food and Chemical Toxicology 2025年

作者： Can-yuan Lin De-ming Kong Jian Gong Ze-hua Liu Zhi Dang Peng-ran Guo Yu-mei Song Jin-yi Sun School of Environment and Energy South China University of Technology Guangzhou 510006 Guangdong China Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of Education School of Environmental Science and Engineering Guangzhou University Guangzhou 510006 China Key Lab Pollution Control & Ecosystem Restoration in Industry Cluster Ministry of Education Guangzhou 510006 Guangdong China Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling Guangzhou 510006 Guangdong China Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology Institute of Analysis Guangdong Academy of Science Guangzhou 510070 China

Poultry eggs are a dietary staple in China, yet their natural estrogen (NE) content remains largely unexplored. This study developed a method to detect 12 NEs in chicken, duck, quail, and pigeon eggs. Eleven NEs were detected in at least one sample, with concentrations of 1.66-15.7 ng/g. Total NEs were highest in duck eggs, followed by chicken eggs, while quail and pigeon eggs had similar levels. The estimated daily intake was highest for duck eggs (3.32 ng/kg bw/d), followed by chicken eggs (3.09 ng/kg bw/d) and quail/pigeon eggs (1.56 ng/kg bw/d). Estrogen equivalents indicated that duck eggs posed the greatest risk. Four common NEs exceeded the children's safety threshold of 0.1 ngE2/d/person, and the less-studied metabolites 16/17epiE3 levels exceeded this value by 3-/6-fold. Library Docking (LibDock) scores and 2D-QSAR analysis identified 16/17epiE3 as the most harmful to children's health. Supplementation with vitamins B2 and B12 significantly reduced the LibDock scores of 16/17epiE3, suggesting a potential strategy to mitigate their estrogenic effects. This pioneering study assesses emerging endocrine-disrupting compounds, NEs in poultry eggs, emphasizing the importance of addressing less-studied NEs. These findings enhance food safety measures to protect public health, and research on NEs in animal foods.

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Blockchain Based Domestic Appliances Scheduling in Community Microgrids

Blockchain Based Domestic Appliances Scheduling in Community...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Afzal, M. Umer, Khalid Amin, Waqas Naeem, M. Cai, Dongshang Zhenyuan, Zhang Huang, Qi Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China Chengdu611731 China Department of Electrical and Computer Engineering COMSATS University Islamabad Wah Campus Pakistan

ISBN: (纸本)9781728135205

This paper proposes an optimization model for community microgrid. The proposed scheme performs the scheduling of domestic appliances in a community microgrid using renewable energy resources. The objective of the scheme is to minimize the total operating cost in the whole community. The optimization problem is solved using the branch and bound algorithm. Blockchain (BC) technology is introduced for secure implementation of the proposed approach. Machine to machine interaction is facilitated using BC technology. The transaction information/ data is stored in the distributed shared ledger. The smart contract is used to automatically trigger the flow of electricity and the movement of funds once the necessary conditions are met. © 2019 IEEE.

关键词： Blockchain

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Entanglement filter with Rydberg atoms

arXiv

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arXiv 2022年

作者： Ye, Gen-Sheng Xu, Biao Chang, Yue Shi, Shuai Shi, Tao Li, Lin MOE Key Laboratory of Fundamental Physical Quantities Measurement Hubei Key Laboratory of Gravitation and Quantum Physics PGMF Institute for Quantum Science and Engineering School of Physics Huazhong University of Science and Technology Wuhan430074 China Beijing Automation Control Equipment Institute Beijing100074 China Quantum Technology R&D Center of China Aerospace Science and Industry Corporation Beijing10019 China Institute of Theoretical Physics Chinese Academy of Sciences P.O. Box 2735 Beijing100190 China CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences Beijing100049 China

Devices capable of deterministically manipulating the photonic entanglement are of paramount importance, since photons are the ideal messengers for quantum information. Here, we report a Rydberg-atom-based entanglement filter that preserves the desired photonic entangled state and deterministically blocks the transmission of the unwanted ones. Photonic entanglement with near-unity fidelity can be extracted from an input state with an arbitrarily low initial fidelity. The protocol is inherently robust, and succeeds both in the Rydberg blockade regime and in the interaction-induced dissipation regime. Such an entanglement filter opens new routes toward scalable photonic quantum information processing with multiple ensembles of Rydberg atoms. © 2022, CC BY.

关键词： Atoms

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