bluuebunny/crossref_metadata_2025_split huggingface dataset:
Current Status of Testing and Research on Circuit Breaker Mechanical Performance and Arc Extinction
Authors: Sun Dong , Man Xiaoping , Wang Chuqiao , Wang Shujie 
Published: October 2020

Abstract
The performance of the circuit breaker mainly includes mechanical performance and arc extinguishing performance. This paper reviews the current status of its detection methods. Research indicates that the dynamic characteristic instrument method can meet the needs of offline detection for the detection of mechanical properties, but it cannot be implemented with electricity. The traditional method for detecting the degree of contact ablation is the electrical life method, which determines the change in the degree of contact ablation of the high-voltage reactive switching switch by the weighted calculation of the number of breaking and the breaking current. This method can only reflect the deterioration of the contact ablation degree of the high-voltage reactive switching switch, but it cannot reflect the abrupt or abnormal contact ablation degree deterioration. It is necessary to carry out research on new technology for live detection of circuit breaker performance.
Control Method of Traffic Signal Lights Based On DDPG Reinforcement Learning
Authors: Wu Haosheng 
Published: October 2020

Abstract
Optimizing the traffic route in the current environment and how to control the best time for traffic lights in large-scale traffic flow has become the main factor in people’s current traffic travel life. This article proposes the use of deep deterministic policy gradients (DDPG). DDPG reinforces the method of learning traffic lights to control the best time for traffic lights, and studies the information interaction between the agent in the environment using the intersection as the agent, so that the agent can find the controllable target in the shortest time. The comparison of simulation experiments with traditional neural networks and reinforcement learning algorithms shows that the algorithm proposed in this paper is superior to other traditional algorithms in terms of solution time, and can quickly and effectively control the timing of traffic lights.
Study on Characteristics of Radiated Electromagnetic Waves of Circuit Breakers
Authors: Chen Yao , Zhao Xiaobing , Wang Baojian , Hou Xinming 
Published: October 2020

Abstract
In order to study the new method of onsite detection of circuit breaker based on electromagnetic method, the characteristics of electromagnetic signal in the process of circuit breaker opening and closing were studied. The research results show that the electromagnetic wave will be radiated during opening and closing of the circuit breaker, and its frequency can reach 2GHz. The signal excited when the circuit breaker is closed is greater than the signal when the switch is opened, and the signal excited when the load is activated is greater than the signal when the switch is not loaded.
Experiment on Seismic Behavior of Neotype Column-slab High Piers
Authors: Zhou Yanqun , Li Miao , Huang Guoping 
Published: October 2020

Abstract
The low-cyclic reversed loading test was carried out for a scale model of a neotype column-slab high pier. The test was designed to investigate its failure modes, hysteretic characteristics, ductility, energy dissipation, residual deformation stiffness degradation. Test results indicate that the neotype column-slab high pier has strong and stable bearing capacity, good ductility and energy dissipation capacity, small residual deformation. The destruction process of the structure components is that bending cracking of the wing slab buttom firstly, shear cracking at the juction of the web plates with the corner columns, then bending cracking at the roots of the corner columns. Cracking and energy dissipation of the slabs decrease the stiffness of the structure, which effectively protects the corner columns. The study contributes to the literature for developing future design guidelines, for the purpose of providing experimental and theoretical background of the neotype column-slab high pier.
Enlightenments from Cloud Computing Technology to the Construction of Aviation and Space Information Equipment System
Authors: Wang Shimei , Li Fei , Hu Rong , Liu Bingqi 
Published: October 2020

Abstract
Cloud operation is a new operational mode brought by cloud computing technology in the military field. In the future aviation and space information warfare system confrontation, cloud operations will have the invisible power application and the combination of virtual and real combat operations. Based on the concept of cloud computing and cloud operation, this paper analyzes the construction requirements of aviation and space information equipment system. Based on cloud operation, aviation and space information equipment system is constructed. The paper discusses the enlightenment of cloud computing technology and cloud operation concept to the construction of aviation and space information equipment system. The revelations are Emphasizing the research on the winning mechanism of cloud operation, enhancing equipment fusion capability, focusing on reliability and safety, adhering to overall coordination, etc.
Temporal and Spatial Pattern Changes of Regional Economic Development Based on Night-time Light Data
Authors: Ling Juan , Liu Xin , Wang Qing , Niu Deyun 
Published: October 2020

Abstract
To realize coordinated regional development is a prerequisite for sound, efficient and steady development of the national economy. In this paper, DMSP/OLS night light data of Shandong Province from 2000 to 2013 are adopted to analyze spatial and temporal pattern changes of regional economic development. Research results suggest that: The overall economic development of Shandong has been fluctuating. The economic development gap of different cities is large and a cross-regional economic coordination framework has not yet been put in place. Eastern coastal cities have been enjoying a sound development momentum, which can effectively drive the economic development of the surrounding cities.
Investigate Calibration Methods for Pressure Transmitters
Authors: Wang Jiaoyan , Zhang Haining 
Published: October 2020

Abstract
Pressure transmitter[1-4] refers to a pressure sensor whose output is a standardized signal. The default memory value of the memory used to store the adjustment information in the internal signal conditioning chip is unknown, so the input and output curves of the pressure transmitter are unknown. The pressure transmitter must be calibrated to adjust the pressure transmitter input and output curves to standard input and output curves. Therefore, this paper studies a calibration method of the current output type pressure transmitter pressure based on the programmable gain amplifier PGA308. The method uses the average slope method to fit the pressure transmitter output output curve, which can realize the calibration of the pressure transmitter. The calibration accuracy can reach 0.0063%, and the calibration rate can reach 9.9 seconds/piece.
Software Architecture Analysis of Intelligent Distribution and Transformation Terminal Based on Container Technology
Authors: Jiang Yanrong , Hu Shejiao , Niu Zhao , Wu Lin 
Published: October 2020

Abstract
Ubiquitous power Internet of things is an important direction of the development of smart grid, and distribution Internet of things is the application of ubiquitous power Internet of things in the field of distribution. As the terminal unit of state perception, intelligent decision-making and control subject in the distribution Internet of things, intelligent distribution and transformation terminal is the foundation to realize the distribution Internet of things. In order to solve the problems of complex software architecture of traditional distribution and transformation terminal, which is not conducive to expansion, maintenance and transplantation, Microservice + container technology is adopted as the software architecture of intelligent distribution and transformation terminal, which reduces the complexity of development, improves the efficiency of operation and maintenance, and meets the diverse and rapidly changing service requirements of distribution network.
Wind Turbine Blade Defect Image Acquisition System
Authors: Zhang Ningning , Lu Chengzhi 
Published: October 2020

Abstract
The detection of wind turbine blades in service is a difficult problem in wind power operation and maintenance. Wind farms in the quality assurance unit and daily inspection, regular detection of blade is with the aid of SLR camera, then the human recognition, low accuracy and low recognition efficiency. This paper puts forward a set wind turbine blade detection method based on based on artificial intelligence image recognition system. With the help of high definition camera array and image recognition software, a large number of image acquisition and rapid recognition processing are carried out for wind turbine blades in service, and finally the automatic detection of blade surface defects is realized. The feasibility and applicability of this method are verified through field detection, which can be promoted in the field of wind power.
Experimental Research on the Technical Parameters of Laser Engraving
Authors: Xie Lusheng , Chen Xiaoyu , Yan Huangping , Xie Haihe , Lin Zhenheng 
Published: October 2020

Abstract
The process route for obtaining the processing parameter data through the engraving test first and then using these data for laser engraving was formulated. Through laser engraving experiments on a variety of materials such as wood, bamboo, paper, plastic, leather goods, PCB, acrylic, glass, paint layer, etc., we studied the changes of laser engraving with laser intensity, engraving speed, and black and white contrast. The physical process of laser engraving is analyzed, and the laser engraving of different materials is successfully carried out using the optimized parameters obtained by the experiment. And through the experiment to obtain the appropriate engraving technical parameters, technical parameters include laser intensity, engraving speed, black and white contrast, etc. The experimental results show that different engraving materials have basically different laser intensity, engraving speed, and black and white contrast. The combination of low intensity and slow speed engraving can delay the laser loss. The slower the speed of most materials, the better the effect. Carrying out laser engraving on materials with high ignition points, the effect of low-speed engraving is better. Laser 3D engraving technology is an emerging and promising laser processing technology. This article has reference value for further research on laser 3D engraving.
Research on CCHP System Grid Connection Interface Device Based on Elman Neural Network
Authors: He Hongyan , Chen Rui , Xu Jianqiang , Ding Kai , Zhu Xiaofan , Zhou Guoqi , He Shengguo , Huang Zhiwei , Xiao Shengyuan , Zhou Xiang , Luo Laifeng , Fang Xiaomin , Peng Wenjian , Cui Xingjun 
Published: October 2020

Abstract
With the promotion of the concepts of “energy Internet” and “multi energy complementation”, the combined cold heat and power (CCHP) system technology has been paid more and more attention by the energy power circles at home and abroad. CCHP system generates electricity through internal combustion engine, meanwhile, the waste heat discharged after power generation is supplied with heat and cooling to users through waste heat recovery equipment, so as to effectively improve the energy utilization rate. However, with the development of information and intelligence in the power grid, the threat of various network malicious attacks on the power industrial control terminal is growing. The traditional CCHP system grid connection interface device operating environment is open and vulnerable to network malicious attacks. In this paper, an interface device of CCHP based on Elman neural network algorithm is proposed. The technical problem to be solved is to be able to realize active defense against unknown attacks and improve the security and operation reliability of CCHP system.
Real-time Evaluation System of Monitoring Equipment State Based on the Integration of Subjective and Objective
Authors: Qi Jingxian , Cao Yuefeng , Sha Shuming 
Published: October 2020

Abstract
Equipment operation monitoring is an important means to ensure the safe operation of power grid, and the operation status of power equipment will directly affect the operation security of power grid, so it is necessary to evaluate the equipment status in real time. In this paper, a subjective and objective evaluation system based on AHP and entropy weight method is proposed, which integrates the operation information and model information of power grid equipment and defines the indicator system of multi-dimensional analysis. The results show that this method has a very good guiding role in ensuring the real-time evaluation of equipment and the auxiliary decision-making of regulation and control
Study on Preparation and Durability of Phosphogypsum Composite Cementitious Foam Concrete
Authors: Li Jiawei , Sun Zhenping , Pang Min , Tian Juntao , Ling Yujie , Luo Shi , Li Fei 
Published: October 2020

Abstract
Acid base salt solution erosion, carbonization test and freeze-thaw cycle test of cement foam concrete and phosphogypsum based foam concrete were carried out respectively. The results show that compared with cement based foam concrete, phosphogypsum based foam concrete has stronger performance of resisting acid and alkali salt attack. This is mainly due to the fact that its internal cement minerals and hydration products have less active components, and are not easy to react with acid-base salts, and have better ability to resist freeze-thaw cycles at the same time. However, the resistance to carbonation is not as good as that of cement based foam concrete. This is due to the high content of aluminum in the interior and the large volume of ettringite, which is easier to be carbonized.
The Calculation of Firing Safety Zone Based on Ballistic Curve Model
Authors: Meng Xianyu , Cui Yanping , Gao Juan , Cai Xiaoyan 
Published: October 2020

Abstract
This paper discusses the determination of the safety zone of artillery fire drill. For the convenience of research, the safety zone is divided into absolute safety zone and relative safety zone. The ballistic curve model starts from the analysis of the trajectory of the projectile, through the analysis of the forces on the flying projectile, using Newton’s second law and the differential equations, the ballistic curve model describing the trajectory of the projectile is established. After that, the trajectory curve parameters of given launch angle are calculated by using MATLAB software, and the farthest range of projectile is obtained. According to the relationship between the range and the angle of the projectile in the ballistic curve model, the angle of the projectile can be obtained, and then combined with the upper limit of the angle of the projectile launching error, the range of the projectile falling point can be obtained.
A Simulation Approach of Information Propagation in Homogeneous Network
Authors: Zhang Yuanfa , Qiao Fengcai , Li Wei , Deng Jinsheng 
Published: October 2020

Abstract
Modelling the behaviour of online social network users’ opinion propagation is of great significance. This paper proposes a method with individual’s own characteristics to model the opinion propagation in homogeneous network. We firstly described the detail of propagation model construction steps including opinion interaction rules, cumulative interaction influence value normalization and historical impact. Then we introduce the definition of individual tolerance to better model propagation. We conducted simulation experiments on two representative propagation networks: ER random network and BA scale-free network. In the end, we give the phenomena and explanation of each simulation result from three aspects.
Key Frames Extraction Based on Optical-flow and Mutual Information Entropy
Authors: Bao Guangbin , Li Dongfang , Mei Yuli 
Published: October 2020

Abstract
Key frames provide a suitable video summary and framework for video indexing, browsing and retrieval, and how to extract key frames is the core in the field of video retrieval. In order to solve the problem of redundancy and missing selection in key frame extraction, this paper proposed a key frame extraction algorithm based on optical flow and mutual information entropy. This algorithm integrates mutual information entropy and optical flow characteristics to extract key frames. First, the optical flow method calculated the total optical flow of each frame of the image, and selected the video frame with extreme optical flow difference in the neighbourhood as the key frame, and the other video frames were put into the candidate key frame set; by calculating the mutual information entropy of the key frame set, the minimum mutual information entropy is taken as the threshold; Then, The mutual information entropy of the candidate key frame set was calculated, and the image frames larger than the threshold value were put into the key frame set; Finally, redundant key frames are deleted through the measurement of inter-frame similarity, and the remaining key frames are the key frames to be extracted. The experimental results show that compared with other methods, the accuracy of extracted key frames by this approach is significantly improved on precision, recall and F-score, and the extracted key frames can reflect video content more effectively.
Singular Topoi of Countably Non-local, Continuously Cayley, Maximal Elements and the Continuity of Closed Elements
Authors: Wan Fang 
Published: October 2020

Abstract
Assume we are given a smooth, multiply prime monodromy Ꮭ. Recent developments in Euclidean arithmetic [20] have raised the question of whether J = W″. We show that A ≠ ‖ Q ‖. The goal of the present article is to construct equations. It is not yet known whether Poncelet’s conjecture is false in the context of homeomorphisms, although [15] does address the issue of reducibility.
Design of Control System for Fresh Air Conditioner
Authors: Shi Ziqi , Wei Jun , Wang Chunhua 
Published: October 2020

Abstract
In response to the increasing requirements of most residents for indoor living conditions, the design of an air conditioner control system based on the STM32 single-chip microcomputer is proposed, and the touch screen is used as superior computer to monitor and adjust the temperature and humidity and air quality of each room. Complete the software and hardware design of the air conditioner control system and use the PID control algorithm to optimize the control process.
A Microblog Unbalanced Data Evolution Analysis Method Based on LDA Model
Authors: Feng Shaorong 
Published: October 2020

Abstract
As a social network platform, Microblog has a large amount of information that can be mined. Microblog differs from static texts, which is time-sensitive, and the popularity of themes is changing with time. In addition, the popularity of Microblog varies from theme to theme, and the number of Microblogs varies greatly. Therefore, it has obvious unbalance characteristics. The traditional LDA model can not mine the theme intensity evolution process, and the theme mixing phenomenon will appear in the theme of unbalanced data mining. In view of the above problems, this paper proposes a method to analyze the theme evolution law of unbalanced Microblog data by introducing time variable. The experiment shows that the problem of theme words mixing is effectively solved after the balance treatment. The introduction of time variables can mine Microblog popularity and theme intensity evolution process.
Research on Deep Belief Network of Wind Power Control Management Unit Based on Attack Identification
Authors: Liu Wei , Huang Zhiwei , Chen Rui , Ding Kai , Zhu Xiaofan , Zhou Junfeng , Zhou Guoqi , He Shengguo , He Hongyan , Xiao Shengyuan , Lu Feng , Wang Guoyou , Ning Baifeng , Ding Qing 
Published: October 2020

Abstract
With the continuous improvement of the level of economic development and the increasingly serious environmental problems, countries around the world are focusing more on renewable energy. Wind energy is an important category of renewable energy because of its advantages. However, wind power is very dependent on the climate environment. It operates in an open operating environment, and its communication depends on the network interaction method. With the proposal of the Internet of Everything, the power grid is developing in the direction of information and intelligence. There are more and more attacks, and the security and stability of wind power interface devices have been threatened. As the power grid involves many areas and households, once the power outage occurs, the economic losses will be huge and even cause major security accidents. This paper proposes a deep belief network research of wind power control management unit based on attack recognition to improve the safety and operational reliability of wind power generation.
Construction and Preliminary Analysis of Three-dimensional Model of Offshore Wind Power Suction Bucket
Authors: Zhang Xu , Xiao Jiandong , Lin Yifeng 
Published: October 2020

Abstract
As a high-rise structure, offshore wind turbines are subjected to huge horizontal loads. Compared with the traditional tubular foundation for offshore wind power, the large-scale tubular foundation with a load-bearing top has a larger load-bearing capacity due to its unique broad-shallow tubular top load-bearing mode. For reasons of towing stability, construction subsidence, fine leveling and structural strength, a subdivision plate is arranged in the concrete cylinder foundation cylinder. We established solid and structural elements through numerical methods, and took into account the tube-soil contact, so as to finely construct a real three-dimensional complex model of this new type of tube-based foundation and soil, which plays an important role in analyzing its deformation and bearing characteristics, as well as the safety and stability of the foundation structure design and practical application.
Design of Electronic Blood Pressure Testing System
Authors: Feng Chenwei , Liu Caifu , Zou Ziliang , Deng Mingyu , Hong Yanjun 
Published: October 2020

Abstract
With the continuous development of electronic technology, the previous traditional methods of blood pressure testing are far from meeting people’s requirements. Fortunately, the advent of electronic blood pressure meters has shown great convenience and potential. Against the backdrop, a new electric blood pressure testing system based on a CC3200 LaunchPad is proposed in this paper, which uses a pressure sensor to collect the information of static pressure and fluctuation of blood pressure, and then transmits the processed data to the software in PC. The software in PC analyzes the data by oscillometric method and Gaussian fitting method, and then the static pressure, systolic pressure and diastolic pressure are calculated and displayed. Test results show that the blood pressure testing efficiency is greatly improved by this system with its high accuracy and reliability, which can meet the requirement of the AAMI (Association for the Advancement of Medical Instrumentation) standard.