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Copyright of Zhejiang Electric Power is the property of Zhejiang Electric Power Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Silicone rubber composite insulators (SiR) for electric power will encounter lightning strike or fire during operation, and SiR will fail due to complex changes such as expansion and cracking after pyrolysis at different temperatures. However, the pyrolysis performance of SiR and the microscopic reasons for these changes are still unclear. In this paper, the thermal degradation of SiR at different temperatures was discussed, and the relationship between pyrolysis temperature and the structure, mechanical properties and surface hydrophobicity of SiR was explored. The thermal stability of SiR was studied by synchronous thermal analyzer. The results show that the microstructure of SiR changes significantly with the increase of pyrolysis temperature. Due to the release of pyrolysis gas and molecular crosslinking in SiR, a large number of pores are produced on the surface of SiR, and the crosslinking degree and tensile properties of silicone rubber decrease. When the pyrolysis temperature is above 300 °C, the mechanical properties and C--H bonds of the pyrolyzed SiR decrease obviously. [ABSTRACT FROM AUTHOR]

This article summarizes the research progress of the application of silicone materials in composite insulators, anti-pollution flashover coatings, cable accessories, anti-corrosion coatings, electric insulating oil and other materials, and looks forward to the development prospects of silicone materials in the field of power. [ABSTRACT FROM AUTHOR]

Copyright of Automotive Engineer (1674-6546) is the property of Auto Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Automotive Engineer (1674-6546) is the property of Auto Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The huge importance of sustainable energy makes the research of the green and environmental hydrogen energy active in the world. Energy conversion and storage technologies （such as fuel cells or water electrolysis） are capable of readily promoting the interconversion between hydrogen and electric power， for which the development of efficient and stable electrocatalysts is prerequisite. Ordered intermetallic compounds are considered as superior electrocatalysts for energy conversion storage technologies and ideal models for studying the relationship between catalytic activity and structure due to uniform distribution of active sites on surface， welldefined stoichiometry and the better control of the local geometry and electronic structure of metal atoms， compared to disordered alloys as their counterparts. In this review， the challenges of catalysts with regard to hydrogenelectric conversion and the advantages of intermetallic compounds in electrocatalysis are firstly introduced. Secondly， research progress on intermetallic compounds electrocatalysts applied in the interconversion between hydrogen and electric power is mainly discussed from the perspective of activity and stability. Finally， the future development prospects of intermetallic electrocatalysts are summarized and prospected. [ABSTRACT FROM AUTHOR]

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to solve the problems of difficulty, low efficiency, and insufficient data to support large-scale training in existing power system detection methods, a few-shot detection method based on siamese network was proposed. Firstly, under the framework of Faster RCNN(region convolutional neural network) object detection algorithm, a siamese network model supporting imageand querying image sharing was built. Then, the improved RPN (region proposal network) module was used to generate proposals of higher quality. Finallly, the RoI(region of interest) supporting and querying images was correlated and matched on the detection head. The results show that the proposed algorithm, applied to the self-constructed EPD(electric power detection) dataset, can detect foreign matters in bird nest and insulator in the power background, and the detection index reaches 1892% mAP, in the case of only 10 supporting images. Compared with other algorithms, the siamese network model with small sample size has better performance under extremely few shot situations, and has the advantage of being more lightweight, which provides some reference for the new research direction of electric power detection.

Copyright of Railway Construction Technology is the property of Railway Construction Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Zhejiang Electric Power is the property of Zhejiang Electric Power Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Sustainable development of energy and electric power is the primary task to support China’s high-quality economic and social development. Therefore, talent cultivation in the electric power industry is indispensable. Under the background of emerging engineering education, North China Electric Power University, as the cradle of the cultivation of outstanding talents in the electric power industry, took the lead in proposing and constructing the cultivation mode of compound applied chemistry talents based on the concept of “green power”, and successfully applied it to the reform and practice of undergraduate teaching. The practice enables students not only to master the application background and engineering practical skills of electric power environmental protection technology, but also to have the innovative ability of collaborative analysis and solving complex multi-pollutant control problems. The cultivation of high-quality applied chemistry talents in the new era would serve the development of the country. [ABSTRACT FROM AUTHOR]

ntroducing the latest research progress of nanotechnology in photovoltaic power generation, artificial photosynthesis, hydrogen storage, electric power storage, lighting, thermal power and other fields in detail, and analyzes the technical bottlenecks and industry barriers existing in the process of its application.At the same time, it points out the key research directions of nanotechnology in the new energy field in the future, in order to provide reference for further research.Finally, the development prospect of this technology in the new energy industry is prospected. [ABSTRACT FROM AUTHOR]

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Hebei University of Science & Technology is the property of Hebei University of Science & Technology, Journal of Hebei University of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The secondary energy on board has been gradually replaced by electrical power in more electric aircraft, effectively improving the fuel economy, reliability and maintainability of the aircraft, and has become an important direction of the aviation technology. As the core of the secondary energy system on board, the power system plays a key supporting role in the development of more electric aircraft. The innovative development of the power system and related technologies are the necessary basis to realize the improvement and global optimization of the aircraft comprehensive performance. Based on the concepts and characteristics of more electric aircraft, this paper analyzes and compares the electric power system architecture of three typical more electric aircraft, summarizes the key technologies supporting the development of more electric aircraft electric power system, and discusses the development trend of high voltage, direct current and intelligent more electric aircraft electric power system in the future. [ABSTRACT FROM AUTHOR]

This paper searches and combs the achievements of grey system theory in the past nearly 40 years based on databases of China national knowledge internet (CNKI) and ISI Web of Science. More than 227 thousands literatures were found by inputting 10 phrases such as grey system‑grey number and sequence operator etc. in CNKI. After entering the 21st century, the number of grey system papers included in CNKI database is increasing rapidly. Since 2008, more than 10 thousands papers have been included per year, and more than 15 thousands papers have been included per year since 2014. The grey system method and model are widely used in natural science fields such as physics, chemistry, and biology, as well as engineering technology fields such as transportation, electric power and machinery, and a large number of valuable results have been achieved. From the large number of documents applying the grey system method and model, which are published by the project team undertaking important national science and technology plans and the double first‑class universities in China, it can be seen that the grey system theory plays an important role in promoting China’s scientific and technological progress, innovation and development, and high-level talent training. [ABSTRACT FROM AUTHOR]

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aiming at the poor weather resistance and high energy consumption of power warning equipment for power transmission facilities with broad coverage, large extension, and complicated line configuration at present, a water and heat resistant energy-storage luminescent paint was prepared with a fluorocarbon lacquer featuring high transparency, strong adhesion, and excellent resistance to heat and water as binder, a highly bright, long afterglow, and stable rare earth luminescent pigment (SrAl2O4:Eu2+,Dy3+), and some appropriate additives. It was confirmed by various property tests that the home-developed functional paint (CF-SrAl2O4) could be used for coating the power facilities with a warning effect. [ABSTRACT FROM AUTHOR]

Proportional-integral-derivative (PID) control algorithm is widely used in the angle control system of tea garden tractor, but the PID controller brings a lot of parameters setting and hysteresis, which can inevitably reduce the control accuracy and control efficiency. To solve the problem, a tea garden tractor angle controller based on the grey wolf optimization algorithm (GWOA) was proposed. A simplified mathematical model for electric power steering (EPS) system of tea garden tractor was established, and a PID-based motor current-steering wheel angle double closed-loop control strategy was adopted. The GWOA was designed to optimize the parameters of the traditional PID controller, and the PID angle controller based on GWOA was constructed. CARSIM and MATLAB were used to simulate the tractor operation in real time, and the proposed tea garden tractor angle controller algorithm based on GWOA was verified. The results show that the total current harmonic distortion (THD) of the traditional PID controller is 11.46%, and the THD of the particle swarm optimization (PSO) PID controller is 8.12%. The THD of the proposed GWOA-PID controller is 6.28%, which reduces the current harmonics by 45.2%. [ABSTRACT FROM AUTHOR]

Copyright of World Nuclear Geoscience is the property of World Nuclear Geoscience Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Drive is the property of Electric Drive Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Advances in New & Renewable Energy is the property of Editorial Office of Advances in New & Renewable Energy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Research on the supply and demand of ecosystem services is related to human well-being. The sustainability of the supply of ecosystem services is also the basis for sustainable social, economic and natural environments. Research on supply and demand can provide theoretical guidance for the rational utilization and allocation of natural resources,which helps to improve the ecological compensation mechanism and coordinate the relationship between various stakeholders. We analyze the degree of correspondence between socioeconomic system demand and natural ecosystem supply by analyzing the research results of supply and demand of ecosystem services. It also strengthens our understanding of different factors influencing ecosystem services, which has important reference value for current land spatial planning systems. We systematically summarize the research status of ecosystem services in China and abroad through literature reviews. The literature publication status of supply and demand examines the conceptual connotation of ecosystem service supply and demand, and it distinguishes between the primary connotation and relationship of potential supply, actual supply, potential demand and actual demand. We summarize and compare the research methods related to the supply and demand of ecosystem services, summarizes the practical applications of evaluating the supply and demand of ecosystem services in China and abroad, as well as the problems and limitations in the current research on the supply and demand of ecosystem services. Further, it outlines the scope for future research to provide a reference for the research and application of supply and demand of ecosystem services. [ABSTRACT FROM AUTHOR]

Copyright of Nonferrous Metals (Mineral Processing Section) is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study performed a multi - scale error analysis of the mean surface downward shortwave radiation flux product ERA5 (0. 25° X 0. 25°) of the European Centre for Medium - Range Weather Forecasts ( ECMWF) using 93 pieces of solar radiation hourly data in 2013 of China. Subsequently, this study revised and analyzed the total radiation product ERA5 by training the random forest model using various relevant elements such as meteorological and geographic ones. Finally, the model was used to obtain the map of revised hourly radiation spatial distribution. As a result, the reanalyzed data can be beter applied in industries such as agriculture, electric power, and urban construction. The results are as follows. $ The MAE, RMSE, and R values between the ERA5 solar radiation and the measured values of stations in 2013 were 27.60 W/m2, 29. 87 W/m2, and 0. 97 respectively. Moreover, the ERA5 values were higher than the measured values of stations. % The accuracy was improved after the revision using the random forest model. After revision, the MAE, RMSE, and R values between the ERA5 solar radiation and the measured values of stations were 3. 34 W/m2, 3.85 W/m2, and 1. 00, respectively, indicating that correlation was significantly improved. © The spatial macroscopic distribution paUerns of radiation before and after revision were consistent, but the ERA5 radiation value significantly decreased in local areas. [ABSTRACT FROM AUTHOR]

Aiming at the recovery and utilization of train electric braking feedback energy, this paper analyzes the train operation characteristics, and focuses on the relationship between the train operation process and the voltage fluctuation of the traction network. Combined with the dynamic mismatch between the power supply of the traction substation and the electric power of the train, the scheme of the on-board braking energy recovery and utilization system is adopted, and a supercapacitor charging and discharging control strategy based on the dynamic change of the electric power of the train is proposed. The scheme is mainly composed of super capacitor series-parallel energy storage unit and bidirectional DC-DC converter. In this paper, MATLAB is used for modeling and simulation analysis. The simulation results show that the control strategy can effectively recover and utilize the train braking energy while suppressing the voltage fluctuation of the traction network, which provides an effective solution for the recovery and utilization of the train braking energy. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Drive is the property of Electric Drive Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Silicone Material is the property of Silicone Material Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The parking environment for drivers is now increasingly complex, and parking has become a driving phenomenon with high incidence of accidents. To solve the problem, a method of path planning for autonomous parking was proposed based on improved β-spline theory. The vehicle kinematical model was established, and considering the vehicle kinematics and electric power steering(EPS) performance requirements in parking environment, the path collision avoidance constraints and the vehicle steering wheel angle and angular velocity constraints were established. The simulation model was built by Matlab/Simulink. According to the actual parking scenario, three autonomous parallel parking conditions were designed, and the path planning was simulated. The results show that the proposed algorithm can realize autonomous parking for different sizes of parking lot, and the planned path curvature is continuous with slowly changed curvature. The vehicle kinematics and EPS performance requirements can be met with high parking efficiency. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Harbin University of Science & Technology is the property of Journal of Harbin University of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)