bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design of liquid level control system for double tank
Authors: Ye Junjie , Zhang Xiaoguang , Lv Chuanmao , Wang Puhao , Lv Haifeng 
Published: March 2020

Abstract
In order to control the liquid level in the chemical production process, a PID control theory algorithm is proposed. Firstly, by constructing a double-capacity water tank liquid level control system, the mathematical model of the double-capacity water tank was deduced and constructed through many experiments. The simulation was carried out by Matlab Simulink software, and the dynamic and static characteristics of the double tank water level control system were analyzed based on the simulation results. The Labview software was used to write the algorithm of the double tank water level control system. The USB-6008 data acquisition card and the DAQ data acquisition assistant were used to complete the connection of the experimental hardware and software. The actual liquid level curve was obtained through experiments. The experimental results show that the designed system can keep the liquid level of the lower tank of the double tank level within the set value, and the floating does not exceed 5%, which achieves the predetermined steady state effect.
Design and control of condom delivery system
Authors: Chen Zhifeng , Liu Xiaogang , Sun Hong , Gao Xiulong , Wang Jian 
Published: March 2020

Abstract
At present, in the domestic condom manufacturing industry, the method of the pin hole detection of the condom is the electric test, and because of the uncertainty of the attitude before the electric test of the condom, the automatic electric test can not be carried out. In order to solve the attitude and order of the condom, the automatic electric test is realized. In this paper, a transfer system based on the Mitsubishi PLC controller is put forward based on the physical property of the condom, and the mutual action of the various sensors and the air cylinder is used to achieve the aim of the research. The delivery system solves the problem of disorder and overlap of condoms, realizes automatic detection, reduces labor cost, and provides an effective system for the transportation of flexible materials.
Research on ultrasonic guided wave dispersion compensation for steel strand defect detection
Authors: Zhao Molin , Wang Haisheng , Xue Bin , Yue Yonggang , Zhang Pengfei , Lv Fuzai , Tang Zhifeng 
Published: March 2020

Abstract
Ultrasonic guided waves detection technology is a new nondestructive testing technology, and it can be used to detect the structural health of steel strands. Because of dispersion separation, it has great impact on the detection results, especially in long distance detection. This paper introduces a method of linear mapping technique for dispersion compensation. The effect of dispersion compensation can be achieved by reconstructing the linear dispersion curve instead of the nonlinear dispersion curve. This paper verifies the processing effect of dispersion compensation method from simulation and experiment while using a single-core rod as an example, and applies this method to the detection signal of steel strand. The results show that the method can focus the guided wave signal, and improve positioning accuracy and signal-to-noise ratio of detection.
Graphical User Interface for Ultrasound Guided Wave Imaging
Authors: Liu Wenlong , Zhang Yinghong , Nie Yalong , Hu Zhiyi 
Published: March 2020

Abstract
In order to more accurately grasp the exact shape, contour size and distribution of defects in the plate-like structures material and other detailed feature information, this paper designed the graphical user interface GUIGWT0.1, which is specifically used for ultrasonic guided wave imaging. This software integrates filtering back projection algorithm, damage probability reconstruction algorithm and diffraction tomography algorithm, which can image the plate-like structures structure as required, and develop the defect detection results to the visual direction. To investigate the validity of the interface, the projection data of lamb wave in the plate-like with a partial-thickness notch are numerically simulated by three-dimensional elastodynamic finite integration technique (EFIT). The resulting projected data is imported into the graphical user interface for imaging. For each existing reconstruction imaging, the result can be represented in terms of grayscale image of projected data, defect imaging, image color inversion and false color defect recognition. Through simple operation, reconstruction of image with defect of plate-like structure are obtained in the user interface.
Study on numerical simulation of gas pipeline speed regulating detector
Authors: Li Xiaolong , Meng Tao , Ma Yilai , Tan Zheng , Chen Jinzhong 
Published: March 2020

Abstract
In order to control the running speed of the detector in the gas pipeline, the flow field calculation method of the detector in the gas pipeline under the discharge state is studied. Based on the operating principle of the detector in the gas pipeline, the model of the discharge hole of the detector is constructed by using the standard orifice flowmeter. Based on computational fluid dynamics theory, the application of computational fluid dynamics software ICEM CFD and provided ANSYS CFX to generate flow field model and a numerical simulation was carried out, with fluid flowing through the discharge of the flow field simulation, the discharge state of gas pipeline detector in flow field, achieved under different aperture of gas flowing through the standard orifice plate before and after the pressure field, velocity field of numerical analysis. The results show that using the standard hole as the detector model in the gas pipeline under the discharge state has certain guidance, and it is of certain significance to further study the velocity control problem of the detector in the gas pipeline.
Research on Computer Network Security Analysis Modeling Based on Artificial Intelligence Technology
Authors: Huang Yan 
Published: March 2020

Abstract
With the development of network technology, network is more and more closely related to people’s lives. Network security has been paid more and more attention, and the research on network security has gradually been put on the agenda. The main purpose of computer network security research is to extract the system data and factors related to computer network security and establish a model to analyze computer network security. Computer security concerns people’s vital interests. Now, hacker attacks and virus intrusions often occur, which threaten people’s privacy and security. The research work of security analysis needs to extract the system resources and security factors related to computer network security and establish a security model oriented to security analysis. Based on the analysis of the connotation and current situation of computer network security, this paper points out the main problems existing in the network security model, in order to explore a practical model for improving computer network security analysis.
Research on Design and Experience of Immersive Virtual Reality Psychological Relaxation Game Based on Image
Authors: Wang Zhen , Xu Hengsuo , Yuan Hongliang 
Published: March 2020

Abstract
With the continuous progress of digital media technology and the rapid development of the game entertainment industry, people have put forward more demands on the display mode and immersion of games. Immersive stereoscopic display game based on game engine supports multi-machine and multi-projection display under various display environments, and has good stereoscopic effect and immersion feeling. The effect of psychological relaxation is highly related to immersive virtual reality environment. The relaxing effect in immersive environment is better than that in non-immersive environment. The more immersive the environment, the stronger the sense of presence, and the better the relaxing effect. With the improvement of virtual reality technology and the popularity of equipment, it provides a convenient and feasible way for the general public to obtain self-discipline of psychological relaxation. The effect of psychological relaxation is highly correlated with the immersive virtual reality environment. The relaxation effect in the immersive environment is better than that in the non-immersive environment. The more immersive the environment, the stronger the sense of presence and the better the relaxation effect.
Design and Application of Intelligent Greenhouse Information Management System Based on Hybrid Architecture
Authors: Su Chang , Yang Chao , Hu Lina , Tian Chong 
Published: March 2020

Abstract
In order In order for real-time greenhouse information management system to be applied in both local area network and wide area network, an intelligent greenhouse information management system based on C/S and B/S hybrid architecture, is designed. In the intelligent greenhouse information management system, factors like temperature, humidity, light intensity and CO2 concentration are considered, so that the greenhouse crops can grow in appropriate environment, to yield good economic benefits. Compared with the traditional greenhouse information management system, the system can monitor the main factors such as temperature, humidity, light intensity and CO2 concentration in the greenhouse. At the same time, customers can monitor the real-time conditions in the greenhouse and exercise real-time control, as long as the Internet is available.
Research on the Product Development Process of the Elderly Based on the Concept of Design Industrialization
Authors: Yang Meng , Lv Yanying 
Published: March 2020

Abstract
Design industrialization refers to the deep integration of design into other industries in order to drive the development of enterprises by design innovation and open the whole industrial chain. The design industry chain includes product development, production and processing, logistics transportation, promotion and sales, which is different from the traditional design service industry and extends a single design field. Design industrialization is a system that takes innovation drive as the core, satisfies customers’ needs as the goal and promotes sales as the motive force. It can make up for the defects of traditional design industry and create a brand-new concept of product design promotion. This paper takes the design industrialization system as the research direction, relying on the aged products, redesigns the development process of the aged products, and explores the practice and application of the design industrialization system in product design.
A Deep Research in Classic Classification Network
Authors: He Hanyue 
Published: March 2020

Abstract
This article is a further study and reflection of the classification network after the completion of the article “The Comparison and Analysis of Classic Convolutional Neural Network in the Field of Computer Vision”. Different from previous work comparing network performance of VGGNet and ResNet, this paper compares and analyzes the importance of depth, breadth and residual learning of GoogLeNet and ResNet in convolutional neural networks. And considering that most of the time, the basic classification network nowadays appears in the form of backbone in the detection and segmentation network, this paper compares the advantages and disadvantages of several major classification networks as backbones.
A design of alternating magnetic field analysis and storage module based on embedded MCU
Authors: Leng Jie , Fu Yibo , Zhao Zhe 
Published: March 2020

Abstract
Aiming at the demand of low frequency alternating magnetic field signal extraction function in the background of marine environment, a set of low frequency alternating magnetic field signal processing and storage module is designed based on embedded MCU. The module uses a FatFs file system and a micro SD card with spectrum analysis and line spectrum extraction. Finally, the function of the module was verified by data simulation and Helmholtz coil test.
Research on the Effectiveness and Operability of Urban and Rural Planning Implementation Evaluation Based on Ecological Environment
Authors: Zhao Lu , Li Chengying 
Published: March 2020

Abstract
At present, the implementation evaluation of urban and rural planning has some problems, such as poor standardization, insufficient subjective cognition, and lack of methodology, which make it difficult to carry out effectively. This paper discusses how to improve the effectiveness and operability of the implementation evaluation of urban and rural planning from three aspects: the evaluation content system, the evaluation organization and method, and the result judgment. Based on the basic concepts of urban and rural planning management and urban ecological environment, this paper analyzes the existing problems of urban ecological environment and urban and rural planning management, as well as the relationship between planning management and urban ecological environment. On this basis, the connotation of eco-city was discussed, and the idea of implementing steps for building eco-city and countryside planning was put forward, so as to promote the development of eco-city and countryside planning and eco-city and countryside construction in China.
Optimization of the Circuit Parameter in Class-E Power Amplifier in the Two-coil Wireless Power Transfer System
Authors: Sun Zhuang , Liu Qing , Li Kun , Hu Bin , Zhao Haibo , Shi Yankai , Zhang Shijie , Liu Yang 
Published: March 2020

Abstract
In this paper, the circuit parameters of the Class-E power amplifier are investigated and optimized to achieve the maximum of output power and efficiency in a two-coil Wireless Power Transfer (WPT) system. The circuit is simulated with software named Saber. Working frequency, the value of capacitors and inductor, which has relationship with the output power and efficiency, are investigated during the simulation. With the simulation results, it is found that the frequency and the shunt capacitor need to be optimized for high performance of the wireless power transfer system.
Study on the dynamic relationship between environmental pollution control and tourism economic growth -- a case study of China
Authors: Wang Wei 
Published: March 2020

Abstract
Environmental pollution control is closely related to the growth of tourism economy. Based on relevant data of China from 2000 to 2017, a vector error correction model was established to test the dynamic relationship between investment in environmental pollution control and tourism economic growth in China. The results show that there is a co-integration relationship between investment in environmental pollution control and tourism economic growth. Through impulse response and variance decomposition analysis, it is found that the fluctuation of tourism economic growth is mainly affected by investment in environmental pollution control. According to the result of causality test, investment in environmental pollution control is the gran cause of tourism economic growth. Therefore, in order to play a role of environmental pollution control investment in promoting the growth of tourism economy, on the one hand, we should attach importance to the improvement of laws and regulations related to tourism environmental protection, on the other hand, we should improve the investment mechanism of environmental protection, and finally, we should strengthen the supervision system of environmental protection and the construction of environmental protection agencies.
Study on the main biochemical components of CH-1 and the suitability of green tea
Authors: Tan Xiao-Qin , Huang Jia-Cheng , Fan Hong-Li , Tang Qian 
Published: March 2020

Abstract
In this experiment, CH-1 was used as material to study its main biochemical components and the suitability of green tea. The results showed that the content of the water extract, caffeine and tea polyphenols in CH-1 were significantly higher than those in FD, which were higher 0.44%~12.29%, 3.03%~7.05%, 11.39%~20.46%, respectively. A lower level of amino acid but a proper phenol-ammonia ratio of catechins in CH-1 contributed to a good quality of green tea made by CH-1, which was consistent with the results of sensory evaluation.
Anti-browning in Tissue Culture of ‘Donghong’ Kiwifruit
Authors: Sui Liyun , Kong Lingling , Liu Xiaomin , Zhang Yong 
Published: March 2020

Abstract
The bud stem segment of ‘Donghong’ kiwifruit was selected to study the anti-browning problem in kiwifruit tissue culture. The effects of different antioxidants and adsorbents added to the culture medium and cold treatment on the browning of explants in vitro were studied. The results showed that except for cold treatment at 4°C for 24 h, other treatments could effectively reduce the browning rate of explants. Among them, the addition of citric acid(CA) to the medium had the best anti-browning effect, and the browning phenomenon did not occur in the treatment of 0.5 mg/L of CA, but the axillary bud germination rate of the stem segment was low. Polyvinylpyrrolidone(PVP) and activated carbon(AC) were added to the medium to have a high germination rate. When the concentration of PVP was 300 mg/L, the germination rate was the highest, reaching 50.00%, and the browning rate was 30.00%. In general, the addition of 300 mg/L of PVP to the culture medium was the optimal treatment in the tissue culture of ‘Donghong’ kiwifruit.
System Dynamics Simulation Research on Ship Emission Control Area Policy
Authors: Wang Zheng , Liu Ying , Qin Cui-Hong , Zhang Wei 
Published: March 2020

Abstract
The ship emission control area policy involves multiple stakeholders. This paper studies the behavior selection and its influencing factors of the maritime administrative department and shipping enterprises in the policy implementation, and constructs the system dynamics model of the evolutionary game of the ship emission control area policy. The model is used to analyze the dynamic impact of different fuel costs on the strategic choices of both parties in policy implementation. The results show that the cost of low-sulfur oil has a significant impact on the behavior of shipping companies. The government management department should reasonably formulate relevant incentive policies and fuel oil supply guarantee mechanisms to ensure the smooth implementation of the ship emission control area policy.
Application of Data Mining Method Based on Integrated Learning in Early Warning Research of SMEs’ Financial Crisis
Authors: Yan Yanxu 
Published: March 2020

Abstract
Due to the reasons of irrational capital structure, non-standard management methods and imperfect internal control system, it directly leads to the weaker anti-risk ability of Chinese SMEs. When various environments deteriorate, it is difficult for SMEs to be able to cope with the resulting risks. Based on the characteristics of listed companies in SMEs and the particularity of the causes of financial crisis, this article focuses on cash flow indicators and selects initial financial indicators. The clustering center is initialized based on the optimized K-means++ clustering algorithm to obtain better clustering results, and the classification effect is evaluated using the contour map. The number of clusters is determined as three types and four types through multiple experiments and comparisons, which works better.
Construction of 3d Model of Complex Geological Structure Deposits under Big Data
Authors: Xue Xiaogang , Bi Mingli , Li Caihong , Chen Guoqiang 
Published: March 2020

Abstract
The traditional mining hand-drawn graphics were slow, inefficient, and the use of two-dimensional CAD graphics to display three-dimensional space was obviously not strong, and it was easy to misunderstand. To this end, a three-dimensional model of complex geological structure deposits under big data was constructed, and a complex geological structure deposit database was established to provide diversified information; CD-TIN technology was used to generate one-time constraint TIN, for saving time in fabricting; Extracting the structure of the deposit and standardizing the original geological map to construct a three-dimensional model of the complex geological structure deposit under the big data; Through experimental research and analysis, the proposed three-dimensional model of complex geological structure deposits under the big data realized the establishment and visualization of the deposit model, which was highly feasible, improved the speed and efficiency of the deposit space model, and had high definition with an increase of 38% over traditional methods.
Influence of loading rate on strength characteristics of ultra high molecular weight polyethylene (UHMWPE)
Authors: Demiyanushko I V , Nadezhdin V S , Gruzdev A S , Titov O V 
Published: March 2020

Abstract
Modern digital modeling of dynamic processes is impossible without verified models of materials. However, when creating a material model, it is necessary to consider the possibility of changing properties depending on the loading rate. In this paper we consider the influence of loading rate on the strength characteristics of modern polymer material – ultrahigh molecular weight polyethylene (UHMWPE).
Automatic prediction of the fatigue crack trajectory in plane finite element models
Authors: Matrosova E A , Sergienko V V , Egorov G P , Sadikov D A 
Published: March 2020

Abstract
A module for automatic prediction of the fatigue crack trajectory in plane finite-element models in Ansys APDL software package was developed. Crack propagation is modeled by exclusion of elements from the active set in the direction, which is determined based on criterion of the maximum energy flux to the crack tip. The module determines the parameters of fracture mechanics (stress intensity factor and J-integral) at each step of crack propagation.
Modelling of gears for nonlinear dynamics analysis
Authors: Popov V V , Sorokin F D 
Published: March 2020

Abstract
The model of gear pair for three dimension nonlinear transient analysis is proposed in the article. The model of gear pair is capable of representing a wide spectra of gear types used in industry. Variable gear mesh stiffness, gear mesh damping, transmission errors and backlash are introduced in the model.
Elastoplastic buckling of a cylindrical shell with initial geometric imperfections and an elastic filler at external pressure
Authors: Samsonova D A , Bazhenov V G , Nagornykh E V 
Published: March 2020

Abstract
A technique has been developed for the numerical calculation of deformation and elastoplastic stability loss nonlinear problems rotating shells based on the Tymoshenko hypotheses for nonshallow shells taking into account geometric nonlinearities. Kinematic relations are formulated in velocities and constructed in the current status metric taking into account large deformations, displacements and rotation angles of shell elements. plastic flow theory with nonlinear isotropic hardening describes physical relations. The motion equations result from the virtual working power balance. Winkler foundation models the revolution shell and the elastic filler contact interaction. The numerical calculation is based on an explicit “cross” type mesh scheme. The dependence of the elastoplastic revolution shell stability loss form and the load critical value on the filler stiffness under various values of the initial imperfections amplitude was studied.
Experimental investigation of elastic properties degradation in aluminum samples under cyclic loading
Authors: Torgovanov A O , Moskvitin G V 
Published: March 2020

Abstract
This research focuses on experimental study of fatigue resistance to vibration. At this time, there are no absolute criteria to accurately estimate fatigue of one or another structure despite the significant amount of studies in this area. A method for predicting the remaining life by studying the changes in the first self-resonant frequency of an aluminum sample depending on the number of loading cycles.