bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improvement and parallelization of k-means clustering algorithm based on Spark platform
Authors: Xiang Zhihua 
Published: November 2019

Abstract
Clustering algorithm analysis is a very common data mining technology in the current industry research, and has been widely promoted and applied in many social marketing and other related industries. It can not only classify, identify and optimize customers accurately, but also design documents by various data processing methods. K-means clustering algorithm is based on the relevant ideological content of “birds of a feather flock together” to split and synthesize data, so that the similarity of data between different clusters can reach the highest. This paper discusses and improves the algorithm based on Spark.
Design of high efficiency dc switching power supply based on soft switch
Authors: Wu Hao , Xiao Linyan 
Published: November 2019

Abstract
At present, due to the small size, high power density, high efficiency, a variety of switching power supply is getting more and more widely used. With the improvement of automation degree of power system, especially the microcomputer of protection device, the program control of communication device and the requirement of power efficiency are also increasing. In order to solve the problem of high power consumption and unstable output of linear circuit in the process of energy conversion, this paper proposes a stable switching power supply based on SG3525 control. The constant voltage source USES PWM control principle to control the duty ratio of the switch tube to achieve the output voltage of 24V. Since the switch power supply design is usually based on the ideal state of the device, SABER simulation software is used to verify the feasibility of the circuit. At the same time, through physical verification, the circuit performance when the input voltage fluctuates. And test the load capacity and work efficiency of the circuit.
RETRACTED: Research on Process Optimization and Reconstruction of Future Media Ecology in 5G Background
Authors: Zhang Shan 
Published: November 2019

Abstract
On June 6, 2019, China’s Ministry of Industry and Information Technology officially issued a 5G commercial license, which indicates that China officially entered the 5G commercial year. As a new generation mobile communication system developed to meet the needs of mobile communication, 5G has become a research hotspot in the field of mobile communication in China. Based on the forward-looking issues of 5G in the field of media ecology in China, this study studies the application scenarios based on 5G in the media field on the basis of fully considering the environmental complexity and technical complexity at home and abroad, and deeply explores the process of 5G for the future media ecology. Optimize and restructure, and then build a future media management optimization path, promote the innovative development of 5G in the future media ecology, promote the innovation of the media industry business model, accelerate the media integration process, build a media industry value chain linkage mechanism based on 5G technology, and build A group of new mainstream media with various forms, advanced means and competitiveness, and built several new media groups with strong strength, communication, credibility and influence to form a future media culture with three-dimensional, diverse and integrated development, and enhance the national culture. Strength provides ideas.
Scheme Construction of VR Cloud Integration Intelligent System Based on Internet of Things
Authors: Ren Jianlan , Wenxin Xiong 
Published: November 2019

Abstract
With the rapid development of mobile Internet and intelligent terminals, the privacy data generated by mobile applications is increasing. Because of the limited computing and storage capacity of mobile intelligent terminals, the security measures designed for traditional network terminal devices are not suitable for mobile intelligent terminals. This paper analyses the current application situation of virtual reality technology and Internet of Things technology and the bottleneck of engineering application and popularization, and probes into relevant problems. On this basis, a new model of intelligent system based on virtual reality and Internet of Things is proposed. The extended Spice protocol provides efficient support for front-end separation of displays and calculations. The encryption master key is generated by splicing the keys generated by the authentication cloud and the mobile intelligent terminal, and the master key is used to effectively prevent the mobile intelligent terminal and the cloud storage server from leaking the privacy data of the mobile user. Realize the unified management, flexible deployment, flexible delivery and automatic operation and maintenance of basic resources, and promote the transformation of application deployment from applying for equipment to applying for service.
Research on Graphic User Interface Automation Testing Technology Based on Cloud Platform
Authors: Liu Xin 
Published: November 2019

Abstract
As the soul of computer, software has more and more important influence on human beings. GUI (Graphical User Interface) technology is widely used because of its friendly interface and easy operation. It is an important part of software nowadays. No matter what kind of software, from requirement analysis to detailed code design stage, we need to use excellent testing technology to lay the foundation for the smooth development of software. Software testing technology has become an important branch affecting the development of software industry. Especially in the regression test conducted in the later stage of the test, it is necessary to verify whether the previously discovered problem is solved in the new version. Automating software testing can make a large number of tests programmatically repeated. Not only does it save a lot of labor, but it also improves test efficiency and guarantees the quality of the test. This paper proposes a graphical user interface automation test technology for cloud platforms, which provides assurance for testers to easily create and flexibly maintain test code.
Building a reference model for a Manufacturing Execution System (MES) platform in an Industry 4.0 context
Authors: Yue Lei , Wang Linkun , Niu Pengfei , Zheng Nan 
Published: November 2019

Abstract
To fill the reference model gaps in the Manufacturing Execution System (MES) platform software field, the definitions for platform software and reference model are put forward, and a reference model for MES platform conforming to Industrie 4.0 specification is proposed. The MES platform was characterized by the reference model from three dimensions of problem space, lifetime and infrastructure, in which, each dimension was represented by a view that consists of a number of viewpoints. In building the reference model, the viewpoints selection processes were discussed based on the current standards in each area corresponding to each dimension, and then a concept of reference model building block was defined. Furthermore, in order to explain how the reference model can be applied in use, some examples were performed for a representative application scenario in Industrie 4.0 and illustrating the reference model in combination with the application of specific technologies. A conclusion and expectation for the reference model research were summarized in the end of the paper.
Prediction and Analysis of Medical expenses in General Hospitals in China based on GM (1, 1) Model
Authors: Miao Yafei , Yan Zhongmin , Huo Yue 
Published: November 2019

Abstract
GM (1, 1) is a long-term forecasting model, which should be credible without large market volatility and policy changes. The purpose of carrying out cost accounting in hospital is to renew the concept of economic management of hospital and raise the cost consciousness of all staff through the accounting and management of hospital and medical service cost, so as to improve the economic benefit of hospital. The grey model has strict theoretical basis, its biggest advantage is practical, and the prediction result is relatively stable, which is suitable for forecasting a large number of data, and the prediction results are very accurate when the amount of data is small. The paper presents Prediction and Analysis of Medical expenses in General Hospitals in China based on GM (1, 1) Model.
Research on feed motion control based on fuzzy PID short arc milling
Authors: Tian Rui , Lu Jun 
Published: November 2019

Abstract
The short arc machining technology uses special current waveform produced by the special power supply of short arc for discharge processing, and there is a more obvious arc generation when discharge. The PID controller consists of three links, the proportion link, the integral loop and the differential link. PID control requires strict tuning of controller parameters, so that when the parameters change, PID controller parameters cannot be adjusted with the change of the controlled object, and self-optimization will lead to larger system overshoot. The paper presents research on feed motion control based on fuzzy PID short arc milling.
Study on the measurment of hoisting mechanism efficiency for bridge crane
Authors: Ge Zhihao , Tong Yifei , Zhong Meng , Li Xiangdong 
Published: November 2019

Abstract
With the bridge crane as a research object, the problem of hoisting mechanism energy consumption and the need of detecting energy consumption are studied by using the black box theory and the serial theory. After the need of measuring reducer power is analyzed emphatically, a plan that measuring simultaneously power of reducer torque and rotational speed is finally proposed.
RETRACTED: Construction of e-commerce platform for agricultural tourism products under the background of big data
Authors: Yin Beilei , Liu Feng 
Published: November 2019

Abstract
In recent years, the rapid development of information technology, such as the Internet of things, cloud computing and mobile Internet, has driven the production, circulation and consumption of agricultural tourism products in China to become intelligent. Through innovation, building agricultural tourism e-commerce platform, can realize the upstream agricultural tourism resources with end consumers of rapid convergence, and just in time to build a true and complete database, the agricultural tourism industrial structure adjustment and upgrade play a great role. Based on the background of big data, the author in the agricultural tourism products based on the analysis of the electronic commerce development present situation, combining with the characteristics of the era of experience economy tourism consumption and puts forward the innovative development of China’s agricultural tourism products e-commerce platform strategy.
Design and Implementation of ERP Management System for Manufacturing Enterprise
Authors: Feng Lei 
Published: November 2019

Abstract
Twenty-first Century is the era of rapid economic development and information technology, manufacturing enterprises in order to compete in the market in an invincible position, we must constantly improve the level of enterprise information management. This paper analyzes the reasons for the low production efficiency and high cost of manufacturing enterprises, and makes a research on how to improve the production efficiency of manufacturing industry, and gives the conclusion that the manufacturing enterprises must take the road of information management. The main content of this paper is design and manufacture enterprise management system, through the system of production management, procurement management, inventory management and process management, improve the level of enterprise information management, so as to reduce the production cost and improve production efficiency. In this paper, the design and implementation of the manufacturing enterprise management system, including production management, procurement management, inventory management and process management, etc.. In this paper, according to the basic idea and principle of management system design, combined with the actual production of enterprises, the system needs analysis, and design and implementation of the manufacturing enterprise management system. This paper conducts a detailed system analysis and design to achieve the system analysis of the functional demand, the realization of the system of manufacturing enterprises in the production process control and management have positive significance in the deployment and use, system stable operation, complete functions, provide to the user a better user experiences. The system has greatly improved the efficiency of enterprise production management, cost savings, and promote the enterprise to create greater value.
Optimal allocation of college office work system in intelligent computer management mode
Authors: Deng Xu 
Published: November 2019

Abstract
Colleges and universities of the office of the university is an important management institutions, is an integral part of the management system of colleges and universities. This paper mainly discusses the problems of the management functions of the office of the college and university. This paper is divided into three parts: the introduction to the office management functions of college and university departments, the expansion of the management functions of the office management functions under the new situation, the problems and Countermeasures of the transformation of the office management functions. The Department office faces many challenges, in management concept, management system and management of equipment and hardware, personnel quality and ability aspects exist some urgent problems to be solved. Subsequently, the author proposed some corresponding measures to solve these problems, such as re positioning the Department office management functions, improve the quality of staff, new leadership concept, perfecting the system construction, strengthening the office equipment configuration and so on. The office of college and department is a department management organization, which integrates management and service, and its function is the function and function that it should have. Its extension is mainly reflected in the administrative management, educational administration management, ideological and moral work, student management, property management, etc.
Active disturbance rejection control for fractional-order PID control system research
Authors: Bai Yunlong , Yang Kaixin , Chen Xiaowei , Dong Haibo , Guo Jinwei 
Published: November 2019

Abstract
The active disturbance rejection control (ADRC) extended to the fractional-order control system, fractional-order proportional–integral (PI) and proportional–integral–derivative (PID) controllers are the most commonly used controller. This paper presents a simple fractional-order control system combined with ADRC control system. By treating the fractional-order as a common disturbance and actively rejecting it, an ADRC can achieve the desired response. External disturbance, sensor noise, and parameter disturbance is also estimated using extended state observer. Simulation on ADRC fractional order model stability analyzes. The results showed that, ADRC fractional order control system object has good control performance.
Discussion on Some Modeling Cases in Operational Research
Authors: Song Yu , Ji Pengfei 
Published: November 2019

Abstract
In view of the objective trend of the development of operational research modeling technology starting from the overview of the steel girder fitting problem, the two cases of operational research modeling are analyzed by using the analysis and comparison method of a large number of references. Firstly, the first case of operational research modeling is introduced and the problem of steel girder fitting is summarized. Secondly, the solution of steel girder fitting problem is by operational research modeling and is elaborated in detail. Then, the second case of operational research modeling is introduced and the rational utilization of linear material problem is analyzed and finally, the steps of operational research modeling are summarized in detail. Therefore, It is hoped that this study will provide an effective reference for the scholars who use operational research modeling.
Application of Yao costume elements in modern costume design based on virtual reality
Authors: Zhang Aimei 
Published: November 2019

Abstract
With the development of society, people’s aesthetic needs for clothing are also changing. The emergence of national style has become a new trend in the field of clothing design. Yao costume language and modern fashion elements have many common features. Yao costume can be integrated from the details of costume elements, costume color matching, decorative techniques and costume elements. Modern fashion design is carried out in style and other aspects. Virtual reality technology is a technology of human-computer interaction using virtual technology. Modern virtual clothing design is that clothing designers use virtual reality design technology through vision, hearing and touch to design clothing under the virtual reality environment displayed by computer. A comprehensive technology integrating computer graphics, artificial intelligence, concurrent engineering, network technology, multimedia technology and virtual reality technology. Retain and develop the essence of national costume and apply it in modern society, which reflects the artistic expression and national cultural charm in modern costume design, improves the position of national costume elements in modern costume design, and plays an important role in promoting the excellent costume culture of ethnic minorities.
Research on Key Technologies of 3D Dynamic Scene Reconstruction in Virtual Reality
Authors: Wan Biao , Xu Chunmei 
Published: November 2019

Abstract
Word In the process of reconstructing dynamic scenes, the traditional 3D reconstruction will generate certain data interference and data transition problems due to the certain continuity of the collected data. A three-dimensional dynamic scene reconstruction scheme based on virtual reality is proposed. Virtual reality technology is an emerging technology. The key is to model the actual object to obtain a virtual image and present it to people. Three-dimensional reconstruction is one of the core technologies, including monocular vision technology, pattern recognition technology, support vector machine computing technology and sensor technology.
Research on rotor performance of air-bearing based on fluid-solid coupling
Authors: Guo Kai , Liu Yongfeng , Liu Bin , Yang Hongbo , Zhang Yingying , Zhang Senhao , Li Zhenlan 
Published: November 2019

Abstract
To investigate whether the motorized spindle meets its technical specifications under working conditions, it is critical to analyze the performance of its rotor. Firstly, the three-dimensional model of the motorized spindle rotor is constructed. To study whether the rotor meets the load-bearing performance requirements, the static performance of the rotor is analyzed by ANSYS software to determine the maximum axial displacement of the front end of the motorized spindle rotor under working conditions. While working under the constraints of both axial and radial aerostatic bearings, the modal analysis of the spindle rotor is carried out and its natural frequencies and corresponding modes are obtained. Then, the harmonic response of the spindle rotor is analyzed to verify whether the axial runout requirement can be satisfied under the working conditions of the spindle. Finally, the stiffness test platform of the aerostatic thrust bearing and the modal test platform of the spindle rotor are designed.
Design of Multi-channel data acquisition system based on single Chip computer and LabVIEW
Authors: Zheng Bigeng , Chen Xinrui 
Published: November 2019

Abstract
Labview is a graphical programming language that creates applications with icons instead of text lines. Because the traditional data acquisition system based on single chip computer is not supported by the upper computer, its storage capacity is limited, no matter what kind of data memory is used, so it has to overwrite and refresh the stored historical data. This system uses the lower computer to collect the analog data, and from the single chip computer to collect the eight channels of data, and to answer the command sent by the host. The host computer is responsible for processing and displaying the received digital quantity. The host and slave communicate with each other using RS-232. The paper presents design of Multi-channel data acquisition system based on single Chip computer and LabVIEW.
Design and optimization of prefabricated component system based on BIM technology
Authors: Wang Gang 
Published: November 2019

Abstract
Building industrialization is a new trend in the development of the construction industry, which is characterized by the implementation of standardized design, industrialized production, mechanized construction and information management in the process of building production. The combination of BIM technology and the design and construction of prefabricated structure can give play to the advantages of BIM information integration and realize the integration of design, production, construction and operation and maintenance. In this context, in order to maintain the good functional characteristics of the prefabricated component system and enhance its potential application value in practice, it is necessary to realize the design and optimization of the system under the support of BIM technology, so as to meet the requirements of the sustainable development of the prefabricated component system. This method with prefabricated library as a starting point, choose the component library of prefabricated assembly design, form a whole structure BIM model, along with analytical review, collision checking, etc., inspection, adjustment and optimization of BIM model, according to the proposed file encryption algorithm to encrypt files, and eventually form a reasonable design scheme of BIM model guide production, transportation and assembly of prefabricated construction.
Based on ZigBee and GIS technology to explore the real-time dynamic monitoring system of urban atmospheric environment
Authors: Wang Yaobin , Wang Jinzhuo , Liao Chenxi 
Published: November 2019

Abstract
Good ecological Environment and Atmospheric Environment is an important part of human healthy growth and survival. With the acceleration of the urbanization process, bringing people a lot of material and spiritual enjoyment, but also increased water, soil and atmospheric environment and other serious pollution problems. Under the influence of greenhouse effect, global warming further aggravates the harm to people’s physical and mental health. In this paper, based on ZigBee and GIS technology, the content of real-time dynamic monitoring of urban atmospheric environment is deeply analyzed, and the positioning and targeted warning of pollution sources of solid pollution particles and pollution gases in the city are carried out to further prevent the spread of pollution accidents.