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4th International Conference on New Energy and power Engineering, ICNEPE 2024

作者： Shi, Hengchu Chen, Xiaofan Li, Yinyin You, Hao Xu, Shoudong Liang, Yong Yunnan Electric Power Dispatching and Control Center China Southern Power Grid Kunming China Scientific Research Institute of Yunnan Power Grid System Analysis Department Kunming China Beijing Jiaotong University School of Computer Science and Technology Beijing China

ISBN: (纸本)9798331516086

The secondary system is very important for the reliable power supply and safe production of the power system. It includes secondary equipment and secondary circuits. The connection status of the secondary circuits will directly affect the correct operation of protection and automation devices. To solve these devices misoperation and refuse to operate problems caused by the multipoint grounding of PT and CT secondary circuits in substations, this paper proposes an online monitoring system for the insulation status of secondary circuits based on distributed zero sequence current sampling method. This system could greatly reduce the workload of maintenance on the secondary circuits, improves operation efficiency, and ensures the reliable operation of the secondary circuit in substations. © 2024 IEEE.

关键词： CT Distributed sampling Insulation online monitoring PT Secondary circuit zero sequence current

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Digit-Module Decoupling Platform Architecture for Safety Automation Equipment 8

Digit-Module Decoupling Platform Architecture for Safety Aut...

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8th Asia Conference on power and Electrical Engineering, ACPEE 2023

作者： Chen, Xinghua Chen, Jinchang Yu, Hao Ning, Yuanyuan Huang, Lixian Power Dispatching and Control Center of Guangdong Power Grid System Analysis Department Guangzhou China Jiangsu Huaruitai Technology Co. Ltd. Research and Development Department Nanjing China

ISBN: (纸本)9798350345520

The existing safety automation equipment are designed to perform in an integrated and centralized way, with the strategy of one device corresponding to one function, and with strong coupling inside the equipment, which brings the problems of repeatability and complexity in management, increases the management workload, and is difficult to standardize the management;Therefore, it is necessary to design the platform architecture for the safety automation equipment from top to bottom, adopt new rapid link technology and establish common standard communication transmission protocol to standardize the consistency of data transmission;to isolate the collection module and the digital part in terms of hardware part to achieve hardware decoupling;and to divide the basic strategy logic and advanced strategy logic of functional strategy in terms of digital part, to adopt independent hardware intelligent plug-in for special strategy software, form the minimum basic function Amass Unit, set up the data center of equipment, adopt virtual agent mechanism, so as to achieve software decoupling, and form the digit-module decoupling platform architecture of "high integration and loose coupling"for safety automation equipment, which will provide the key technical basis for the standardized management of safety automation equipment. © 2023 IEEE.

关键词： Automation

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research and Application of Communication Security in Security and Stability control system of power Grid 7

Research and Application of Communication Security in Securi...

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7th Asia Conference on power and Electrical Engineering, ACPEE 2022

作者： Chen, Xinghua Huang, Lixian Zheng, Dan Chen, Jinchang Li, Xinchao Power Dispatching and Control Center of Guangdong Power Grid System Analysis Department Guangzhou China Jiangsu Huaruitai Technology Co. Ltd. Research and Development Dep Artment Nanjing China

ISBN: (纸本)9781665418195

Plaintext transmission is the major way of communication in the existing security and stability control (SSC) system of power grid. Such type of communication is easy to be invaded, camouflaged and hijacked by a third party, leading to a serious threat to the safe and stable operation of power system. Focusing on the communication security in SSC system, the authors use asymmetric encryption algorithm to encrypt communication messages, to generate random numbers through random noise of electrical quantities, and then use them to generate key pairs needed for encryption, at the same time put forward a set of key management mechanism for engineering application. In addition, the field engineering test is performed to verify that the proposed encryption method and management mechanism can effectively improve the communication in SSC system while ensuring the high-speed and reliable communication. © 2022 IEEE.

关键词： Cryptography

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Digit-Module Decoupling Platform Architecture for Safety Automation Equipment

Digit-Module Decoupling Platform Architecture for Safety Aut...

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power and Electrical Engineering (ACPEE), 5th Asia Conference on

作者： Xinghua Chen Jinchang Chen Hao Yu Yuanyuan Ning Lixian Huang System Analysis Department Power Dispatching and Control Center of Guangdong Power Grid Guangzhou Research and Development Department Jiangsu Huaruitai Technology Co. Ltd. Nanjing

The existing safety automation equipment are designed to perform in an integrated and centralized way, with the strategy of one device corresponding to one function, and with strong coupling inside the equipment, which brings the problems of repeatability and complexity in management, increases the management workload, and is difficult to standardize the management; Therefore, it is necessary to design the platform architecture for the safety automation equipment from top to bottom, adopt new rapid link technology and establish common standard communication transmission protocol to standardize the consistency of data transmission; to isolate the collection module and the digital part in terms of hardware part to achieve hardware decoupling; and to divide the basic strategy logic and advanced strategy logic of functional strategy in terms of digital part, to adopt independent hardware intelligent plug-in for special strategy software, form the minimum basic function Amass Unit, set up the data center of equipment, adopt virtual agent mechanism, so as to achieve software decoupling, and form the digit-module decoupling platform architecture of "high integration and loose coupling" for safety automation equipment, which will provide the key technical basis for the standardized management of safety automation equipment.

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The Secondary Circuit Insulation online Monitoring system based on Distributed Current Sampling

The Secondary Circuit Insulation online Monitoring System ba...

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New Energy and power Engineering (ICNEPE), International Conference on

作者： Hengchu Shi Xiaofan Chen Yinyin Li Hao You Shoudong Xu Yong Liang China Southern Power Grid Yunnan Electric Power Dispatching and Control Center Kunming China System Analysis Department Scientific Research Institute of Yunnan Power Grid Kunming China School of Computer Science and Technology Beijing Jiaotong University Beijing China

ISBN: (数字)9798331516086

ISBN: (纸本)9798331516093

关键词： Insulation Substations Grounding Circuits power system reliability Maintenance Circuit faults Integrated circuit reliability Protection Monitoring

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analysis of a Data Set to Determine the Dependence of Airline Passenger Satisfaction 7th

Analysis of a Data Set to Determine the Dependence of Airlin...

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7th Computational Methods in systems and Software, CoMeSySo 2023

作者： Tynchenko, V.S. Borodulin Kleshko, I.I. Nelyub, V.A. Rukosueva Artificial Intelligence Technology Scientific and Education Center Bauman Moscow State Technical University Moscow105005 Russia Peter the Great St. Petersburg Polytechnic University Saint Petersburg Russia Department of Information Economic System Institute of Engineering and Economics Reshetnev Siberian State University of Science and Technology Krasnoyarsk660037 Russia Department of Systems Analysis and Operations Research Institute of Informatics and Telecommunications Reshetnev Siberian State University of Science and Technology Krasnoyarsk660037 Russia Information-Control Systems Department Institute of Computer Science and Telecommunications Reshetnev Siberian State University of Science and Technology Krasnoyarsk660037 Russia Department of Technological Machines and Equipment of Oil and Gas Complex School of Petroleum and Natural Gas Engineering Siberian Federal University Krasnoyarsk660041 Russia

ISBN: (纸本)9783031535512

This paper presents an analysis of a data set to determine the factors influencing airline passenger satisfaction. The study examines various criteria such as gender, customer type, age, travel type, class, and range to assess their impact on passenger satisfaction. The dataset consists of 25 columns, including attributes like Wi-Fi availability, convenience of online booking, seat comfort, in-flight entertainment, baggage handling, and overall satisfaction. The sample is relatively balanced, with equal representation of men and women, predominantly repeat customers, and a majority flying for business purposes. Key findings include a strong correlation between departure and arrival delays, higher satisfaction among passengers in business class, and positive ratings for Wi-Fi service correlating with overall satisfaction. Correlation analysis reveals interdependencies between different attributes, such as the influence of cleanliness on seat comfort and food and beverage ratings. In addition, a neural network forecasting model is used to estimate the average ratings of passengers, although with low accuracy, which was later excluded. Finally, a decision tree algorithm is utilized to identify the most significant attributes affecting passenger satisfaction words. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Baggage handling

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Correlation analysis and Predictive Factors for Building a Mathematical Model 1

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7th Computational Methods in systems and Software, CoMeSySo 2023

作者： Nelyub, V.A. Tynchenko, V.S. Gantimurov, A.P. Degtyareva, K.V. Kukartseva, O.I. Artificial Intelligence Technology Scientific and Education Center Bauman Moscow State Technical University Moscow105005 Russia Peter the Great St. Petersburg Polytechnic University Saint Petersburg Russia Information-Control Systems Department Institute of Computer Science and Telecommunications Reshetnev Siberian State University of Science and Technology Krasnoyarsk660037 Russia Department of Technological Machines and Equipment of Oil and Gas Complex School of Petroleum and Natural Gas Engineering Siberian Federal University Krasnoyarsk660041 Russia Department of Information Economic System Institute of Engineering and Economics Reshetnev Siberian State University of Science and Technology Krasnoyarsk660037 Russia Department of Systems Analysis and Operations Research Institute of Informatics and Telecommunications Reshetnev Siberian State University of Science and Technology Krasnoyarsk660037 Russia

ISBN: (数字)9783031535499

ISBN: (纸本)9783031535482

The study, published in the journal Nature Medicine, looked at data on 1,000 people from China who were tracked over an average period of six years. The participants were divided into two groups: those who lived in areas with high levels of air pollution and those who lived in areas with low levels of air pollution. The study analyzed data on patients with lung cancer, including their age, gender, exposure to air pollution, alcohol consumption, dust allergy, occupational hazards, genetic risk, chronic lung disease, balanced diet, obesity, smoking, passive smoking, chest pain, cough, hemoptysis, fatigue, weight loss, shortness of breath, wheezing, difficulty swallowing, nail thickening and snoring. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Air pollution

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Applications of MXenes in human-like sensors and actuators

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Nano research 2023年第4期16卷 5767-5795页

作者： Jinbo Pang Songang Peng Chongyang Hou Xiao Wang Ting Wang Yu Cao Weijia Zhou Ding Sun Kai Wang Mark H.Rümmeli Gianaurelio Cuniberti Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongUniversity of JinanJinan 250022China Institute for Materials Science and Max Bergmann Center of Biomaterials Technische Universität DresdenDresden 01069Germany Center for Advancing Electronics Dresden Technische Universität DresdenDresden 01069Germany Dresden Center for Computational Materials Science Technische Universität DresdenDresden 01062Germany Dresden Center for Intelligent Materials(GCL DCIM) Technische Universität DresdenDresden 01062Germany High-Frequency High-Voltage Device and Integrated Circuits R&D Center Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Microelectronic Devices&Integrated Technology Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China Shenzhen Key Laboratory of Nanobiomechanics Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan 250353China School of Bioengineering Qilu University of TechnologyShandong Academy of ScienceJinan 250353China Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology(Ministry of Education) Northeast Electric Power UniversityJilin 132012China School of Electrical Engineering Northeast Electric Power UniversityJilin 132012China School of Electrical Engineering Weihai Innovation Research InstituteQingdao UniversityQingdao 266000China School of Electrical and Computer Engineering Jilin Jianzhu UniversityChangchun 130118China Institute for Complex Materials Leibniz Institute for Solid State and Materials Research Dresden(IFW Dresden)20 Helmholtz StrasseDresden 01069Germany College of Energy Soochow Institute for Energy and Materials Innovations Soochow UniversitySuzhou 215006China Key L

Human beings perceive the world through the senses of sight,hearing,smell,taste,touch,space,and *** first five senses are prerequisites for people to *** sensing organs upload information to the nervous systems,including the brain,for interpreting the surrounding ***,the brain sends commands to muscles reflexively to react to stimuli,including light,gas,chemicals,sound,and ***,as an emerging two-dimensional material,has been intensively adopted in the applications of various sensors and *** this review,we update the sensors to mimic five primary senses and actuators for stimulating muscles,which employ MXene-based film,membrane,and composite with other functional ***,a brief introduction is delivered for the structure,properties,and synthesis methods of ***,we feed the readers the recent reports on the MXene-derived image sensors as artificial retinas,gas sensors,chemical biosensors,acoustic devices,and tactile sensors for electronic ***,the actuators of MXene-based composite are ***,future opportunities are given to MXene research based on the requirements of artificial intelligence and humanoid robot,which may induce prospects in accompanying healthcare and biomedical engineering applications.

关键词： MXenes sensors actuators gas sensors biosensors tactile sensors sound sensors artificial retina

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Tracking the carbon footprint of global generative artificial intelligence

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Innovation 2025年第5期6卷 100866页

作者： Ding, Zhaohao Wang, Jianxiao Song, Yiyang Zheng, Xiaokang He, Guannan Chen, Xiupeng Zhang, Tiance Lee, Wei-Jen Song, Jie State Key Lab of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing102206 China National Engineering Laboratory for Big Data Analysis and Applications Peking University Beijing100871 China Department of Electrical and Electronic Engineering University of Hong Kong Hong Kong999077 China Department of Industrial Engineering and Management College of Engineering Peking University Beijing100871 China Jan C. Willems Center for Systems and Control University of Groningen Groningen9700AB Netherlands Energy Systems Research Center University of Texas at Arlington ArlingtonTX76019 United States

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Modeling the early transmission of COVID-19 in New York and San Francisco using a pairwise network model

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Infectious Disease Modelling 2022年第1期7卷 212-230页

作者： Shanshan Feng Xiao-Feng Luo Xin Pei Zhen Jin Mark Lewis Hao Wang Department of Mathematics North University of ChinaTaiyuanShanxi030051China College of Mathematics Taiyuan University of TechnologyShanxiTaiyuan030024China Complex System Research Center Shanxi UniversityTaiyuan030006ShanxiChina Shanxi Key Laboratory of Mathematical Techniques and Big Data Analysis on Disease Control and Prevention Shanxi UniversityTaiyuan030006ShanxiChina Department of Mathematics and Statistics Sciences University of AlbertaEdmontonAlbertaT6G 2G1Canada Department of Biological Sciences University of AlbertaEdmontonAlbertaT6G 2E9Canada

Classical epidemiological models assume mass ***,this assumption is violated when interactions are not *** the recent COVID-19 pandemic,and resulting shelter in place social distancing directives,mass action models must be modified to account for limited social *** this paper we apply a pairwise network model with moment closure to study the early transmission of COVID-19 in New York and San Francisco and to investigate the factors determining the severity and duration of outbreak in these two *** particular,we consider the role of population density,transmission rates and social distancing on the disease dynamics and *** analysis shows that there is a strongly negative correlation between the clustering coefficient in the pairwise model and the basic reproduction number and the effective reproduction *** shelter in place policy makes the clustering coefficient increase thereby reducing the basic reproduction number and the effective reproduction *** switching population densities in New York and San Francisco we demonstrate how the outbreak would progress if New York had the same density as San Francisco and *** results underscore the crucial role that population density has in the epidemic *** also show that under the assumption of no further changes in policy or transmission dynamics not lifting the shelter in place policy would have little effect on final outbreak size in New York,but would reduce the final size in San Francisco by 97%.

关键词： COVID-19 Social network Quarantine Social distance Clustering coefficient

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