bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preceding Vehicle Detection Based on Optimized Faster R-CNN Algorithm
Authors: Wang Yongqing , Cui Guochen , Wang Shufeng , Zhang Junyou 
Published: March 2021

Abstract
Preceding vehicle detection is still a challenge for unmanned driving technology. Deep learning has achieved great success in target detection. Among them, the Faster R-CNN algorithm is a classic representative. However, the algorithm still has some room for improvement in detection accuracy. By analyzing the problems of Faster R-CNN in the detection of occluded vehicles, taking the target detection post-processing algorithm Soft-NMS as the research object, two new penalty coefficients, inverse proportional penalty coefficient and exponential penalty coefficient, were proposed. It further improves the algorithm’s detection accuracy of the blocked vehicle in front.
Study on Infringement Identification of Art Works Based on CNN Image Recognition Technology
Authors: Chen Yan , Qu Rui 
Published: March 2021

Abstract
In view of the current situation where the criteria for judging the infringement of art works are still vague and the court discretionary process is highly subjective, this article introduces the working principle of convolutional neural network (CNN) which is based on image recognition technology, and uses CNN algorithm to extract and store the characteristics of related works, And use the method of cosine similarity criterion to compare and calculate the degree of similarity, to assist in judging the standard of substantial similarity, and to improve the objectivity of the criterion for identifying copyright infringement of artworks
The Summary of NEV Business Model Based on Four-Elements Model
Authors: Zhao Dongchang , Jiang Zelei 
Published: March 2021

Abstract
With the remolding of the automobile industry and the reconstruction of the value chain, the traditional automobile giants have embarked on the digital transformation and ecological layout of the new energy business, so the business model’s innovation and reform are imminent. This paper makes a comparative analysis of the business models of Tesla and NIO by combing the current business models of automobile enterprises in the sales and use links with the four-elements model proposed by Professors Johnson and Christensen of Harvard University. Finally, based on some auto companies’ current business models, this paper provides some new ideas for the business model innovation in the new energy business layout of Chinese auto companies.
Research on College Students’ Entrepreneurship service system based on public management environment
Authors: He Jinlian , Li Haoyue 
Published: March 2021

Abstract
The employment and Entrepreneurship of college students is an important aspect of people’s livelihood. Under the background of "mass entrepreneurship and innovation", from the perspective of public management, this paper discusses and analyzes the current situation and construction strategies of College Students’ Entrepreneurship service security system from the perspective of public management. This article mainly from the entrepreneurship skills training, funds and policy support measures, optimizing business environment, encouraging qualified college students to actively participate in the entrepreneurial tide, in order to provide certain reference for college students’ Entrepreneurship service.
The design and implementation of data system based on Polymorphic Graphics and text
Authors: Bai Yongbin , Zhang Zhenfeng , Huang Cheng , Wang Yang , Yue Lisen 
Published: March 2021

Abstract
This paper introduces a set of professional data management system based on polymorphic graphics, which is established according to the requirements of software engineering management. It introduces the key technologies of the system, such as the main function module design, three-tier architecture quick design tool, online visio file and pdf file browsing. The system has strong practicability and good user interface. It can effectively improve the current professional data management mode.
Comprehensive Evaluation of Logistic Support Capabilty of Marine control System Based on FAHP Method
Authors: Wang Guoshu , Liu Guifeng , Song Yefan , Chen Jun 
Published: March 2021

Abstract
The integrated control system of a certain type of ship was imported from abroad, and its independent maintenance support system has been established in China. However, due to the complex internal structure of the system, there are problems in actual use such as high failure rate and insufficient number of replacement spare parts. The application of a large number of advanced technologies and specific encryption measures makes the maintenance very difficult, and the existing logistics support capability is far It is not enough to ensure the execution of its normal tasks and seriously affects the performance of the entire ship warfare technology. To this end, comprehensively analyze the factors affecting the logistics support capability of the system, and use the analytic hierarchy process to construct an index system for evaluating factors of the logistics support capability. On this basis, the fuzzy comprehensive evaluation method is used to construct an evaluation model, combining the actual use and maintenance of the equipment The validity of the model was verified. The results show that the lack of spare parts and the shortage of repair and debugging platforms are the main factors restricting the logistics support capability of the system. This comprehensive evaluation provides a reference for guiding the rational allocation and optimization of logistics support resources, improving the system’s logistics support capabilities, and guiding the support construction of the same type of system, and has certain guiding significance for the later realization of the localization of the whole system.
Research and Analysis on the Identification Algorithm Based On the Random Near Parameter Estimation of Children’s Running
Authors: Guo Qiurong , Zhang Wanjun , Zhang Feng , Gou Xiaoping , Li Bingze , Yang Chunhua , Yang Aihong 
Published: March 2021

Abstract
To study the suitable heart rate of obese children with different physique in weight-loss exercise, so as to provide scientific and effective exercise for children. In this paper, a stochastic near parameter estimation and identification algorithm based on running of obese children is proposed. Based on the obese children’s weight-loss exercise,a system of random near parameter estimation and identification is established. Finally, through the MATLAB simulation analysis, the results show that the method is suitable for children’s running safety heart rate and physical quality. The simulation results verify the feasibility and effectiveness of the method.The obese children’s weight-loss children’s running exercise has a strong reference in physical exercise.
Distributed Method for the Backup of Massive Unstructured Data
Authors: Duan Junhong , Yang Bo 
Published: March 2021

Abstract
In order to solve the existing problems for the backup of massive unstructured data with its performance bottleneck of single server, in this paper we propose a distributed method for the backup of massive unstructured data. In the backup method, through using a combination of load balancing algorithm and distributed algorithm, the backup system assign task of backup to each production server. Multiple servers backup massive unstructured data stored in shared storage to the backend server. The backup system can make full use of the performance resources of servers in environment production, reduce the single server performance bottlenecks, to avoid the single server hunger, increased the speed of backup.
Learning material management system based on database
Authors: Wang Yanyang , Xu Xiaoxiao 
Published: March 2021

Abstract
In recent years, with the rapid development of Internet technology, more and more online learning methods have emerged, and the main body introduced in this article is the integration of the original offline data and the status quo of online learning and database development. Under the premise of, under the review requirements of undergraduates at the end of the direction, the design of learning materials management system.
The Seated Comfort Design of Hybrid Electric Vehicle by Multi-Objective Optimization Method
Authors: Yang Guang , Cao Yong , Tao Haiyan 
Published: March 2021

Abstract
The seated comfort is one of the important parts in vehicle design. The research of the second row’s head comfort and buttocks comfort of a hybrid electric vehicle is conducted by multi-object optimization method in this paper. The surrogate functions of the performances are obtained by design of experiments, and the Pareto optimal front is worked out employing a multi-object optimization algorithm. In the end it proved great improvement in the level of the seated comfort design, and the improved design performed significantly better than the initial one.
Research on Optimization Method of Originating Direct Transportation Organization
Authors: Li Lixuan , Ding Yong , Han Lu 
Published: March 2021

Abstract
Organizing nonstop train is one of the effective ways to organize traffic flow. This article introduces the conditions, principles and schemes of the nonstop transport organization. On this basis, this paper establishes a mathematical model with the goal of minimizing the total consumption of traffic in the loading and unloading areas and during operation. This model is constrained by the uniqueness of the plan and the restriction of direct traffic flow. This paper constructs an example to test the actual application of the model, verify its effectiveness, and explain the advantages of organizing nonstop train.
Multi-vehicle mixed formation driving method based on fuzzy decision
Authors: Guo Peng , Hua Yiding , Wang Tong , Gong Jinfeng 
Published: March 2021

Abstract
This paper presents a multi-vehicle driving method based on fuzzy decision. Fuzzy decision-making is used to realize the process of multi vehicle merging to observe how he turns and joins other teams successfully. Establish the multi-vehicle driving fleet model, and initialize its relevant data, mainly including the speed of multi vehicle driving, the distance between vehicles in the multi vehicle driving fleet and the location from the intersection. Establish the model and data of the vehicle to be inserted into the multi vehicle driving team, mainly including its speed, the position of the vehicle to the intersection, and the intersection of the queue jumping is a fixed T-junction, and the whole process of fleet merging is implemented The method proposed in the paper can be applied in practice.
The Influence of Different Finals Ending on the Pronunciation Airflow of Syllables Based on Cooperative Pronunciation Theory
Authors: Wang Jing , Li Yonghong , Liu Zeguo 
Published: March 2021

Abstract
Based on the theory of coarticulation, this paper studies whether different endings of stops and affricate vowels in syllable structure affect the pronunciation airflow. Through the analysis of the data, we can see that the stop initial syllable at the back of the pronunciation part is longer than the stop initial syllable with the same vowel in the same position. No matter whether the stop or affricate is the initial, the average air velocity of the syllable with the ending of the front nasal is higher than that of the syllable with the opening syllable and the last nasal sound.
Data Wealth Mining Based on Text and Time
Authors: Liu Jie 
Published: March 2021

Abstract
In this paper, online sales strategies for microwave ovens, baby pacifiers and hairdryers in Amazon are studied based on sentiment analysis and opinion mining. Firstly, we analyze and quantify star ratings, reviews, and helpfulness ratings based on the corresponding factors, and give one mathematical model for the evaluation of product. Secondly, we identify and discuss time-based measures and patterns within each data set to analyze whether the reputation of the product is rising or declining. Finally, we predict the goods that may be potentially successful or failing taking all indicators into consideration, and put forward suggestions on important design features that would enhance product desirability.
Design and Research of MCU applied in UAV Data Acquisition System
Authors: Zhang Hua , Wang Jiachen , Sun Yingying , Wang Wei 
Published: March 2021

Abstract
To meet the requirements of high real-time performance and long endurance of UAV data acquisition system, this paper designs a MCU, which integrates ADC, embedded memory and other key modules into a single MCU chip, so as to reduce the impact of interconnection communication between hardware units. High speed, low power consumption and high anti-interference performance are obtained for acquisition system.
An automation tool for exporting structure models from Revit to Tekla Structure
Authors: Ma Jie , Ding Siwen , Zhang Dehai , Li Yue 
Published: March 2021

AbstractBIM modeling process currently faces a significant exchange issues since there is a need for conversion of intelligent building models between various design applications. Right now, Autodesk Revit and Tekla Structures, as the most popular BIM applications, in which compatibility issues were noted since many projects are facing the difficulties when a building model was converted from Revit to Tekla. Although Industrial Foundation Class (IFC), as a promise open file format which enables the possibility of exchange of models between different design applications, an exchange of models with IFC may cause compatibility issues where parts of building information can be lost or relocated. This study aims to develop a plug-in application for converting building models from Revit to Tekla by using API interface. To test the plug-in tool, a 34-storey high-rise residential building model is exchanged from Revit and Tekla with IFC and the plug-in application. The results showed the plug-in application performed better than IFC method in terms of accuracy and efficiency.
Simulation and Optimization of Protection Mothod for Large Surface Vessels
Authors: Li Jinfeng , Sun Bingcheng , Zhang Jiang 
Published: March 2021

Abstract
In order to determine the main protection parts of the protective structure of large surface vesselss, a model of acoustic wake homing underwater vehicle entering the position and course of wake based on probability distribution is established. Also, a simulation system of acoustic wake homing underwater vehicle based on simulation method is designed on the basis of wake acoustic simulation model, underwater vehicle acoustic homing detection model and trajectory model. On this basis, the hit area of acoustic wake homing underwater vehicle is simulated, and the protection mothod of large surface vessels is optimized. This method can be used to realize the lightweight design of vessels and improve its protection ability.
Numerical Simulation of Wave of Oil Storage Platform for Large Concrete Foundation
Authors: Ni Xiaochang , Zhang Wenwen , Zhang Lianli , Li Zhigang 
Published: March 2021

Abstract
In this paper, the hydrodynamic characteristics of a large concrete foundation oil storage platform under wave action are simulated by using the three dimensional wave sink IHFOAM developed by OpenFOAM. It mainly simulates the wave high,the envelope diagram of the maximum pressure value, and the force characteristics of the platform such as the combined force and bending moment under two working conditions. And draw relevant conclusions, provide optimization suggestions for the design layout scheme, and provide reference for other similar structure calculations.
Research on Application of emojies in network customer service
Authors: Gu Ming 
Published: March 2021

Abstract
Emojies in online shopping, online customer service is widely application. Through the investigation of Internet consumers and network service personnel, this paper from the frequency of use, attitudes, preferences and other describes the network consumer, customer service personnel to use emojies status, through the score analysis, for customer service staff in working process using emojies recommendations: positive use of emojies and use emojies are less, pay attention to the frequency of use of emojies, in the form of written words + emoticons to consumers, emojies should be placed at the end of the sentence.
Research on the Application of Models Based on Mathematical Theory in the Analysis of Building Structures
Authors: Yang Shufen , Huang Xinyao 
Published: March 2021

Abstract
With the development of urbanization, the demand for various high-rise buildings is also increasing. The stability and safety of the building structure are an important issue. This article uses various mathematical models to analyze high-rise buildings, studies how to analyze high-rise structures and theoretically provides support for the analysis of high-rise structures.
Simulation Design of Wearable Device Based on Intelligent Interaction Concept
Authors: Yan Jun , Han Xiaoran 
Published: March 2021

Abstract
The intelligent interactive concept as the center, on the basis of the problem of drinking water container, with dressing device of portable items as bottled water way to resolve the problem, through the market similar products from the aspects of capacity, material, carrying way investigation and study, analysis of intelligent interaction design in the application of high-end products embody the characteristics of humanization, intelligent, timeliness, and combine with products created by efficient and convenient. In addition, the feasibility of intelligent interaction in wearable devices with portable items is verified through their intelligence, humanization, timeliness and material requirements. On this basis, through the simulation of functions and forms in wearable devices that can carry items, the intelligentization, humanization and timeliness of the concept of intelligent interaction are analyzed and illustrated with examples.
Research on Reliability Analysis Method Based on Dynamic Fault Tree
Authors: Chen Han , Chen Ling , Zhang Yongfa 
Published: March 2021

Abstract
Due to the development of digital technology, digital I&C systems have replaced analog I&C systems and become the mainstream I&C systems for nuclear power plants and marine nuclear power plants. However, there is still a lack of effective and recognized analysis methods for the reliability analysis of digital I&C systems. Based on the commonly used dynamic fault tree analysis method for dynamic system reliability analysis, this paper uses Markov transition matrix to achieve quantitative analysis. Reliability analysis of the digital I&C system, through the improved dynamic fault tree analysis method, provides an effective analysis method for the reliability analysis of the digital I&C system.
Research on Trim Simulation and Flight Test of a General Electric Aircraft
Authors: Li Yadong , Zhang Zijun , Zhang Junyao 
Published: March 2021

Abstract
In order to study the stable flight of an electric aircraft in the whole flight speed range, taking the manned electric aircraft as an example, the method and principle of Longitudinal Trim for high aspect ratio aircraft are presented. Based on the wind tunnel test data, the torque produced by different gravity centers and tension lines as input parameters, and ignoring the influence of lateral and heading parameters, the three-degree-of-freedom motion equation of the aircraft is established, the difference of the performance parameters before and after the trim state is analyzed, which reflects the flight characteristics of the aircraft in a comprehensive way, and is compared with the flight test data. The simulative simulation data and the flight test data are in good agreement and have certain feasibility, it provides a reference for analyzing the performance parameter modification of other high aspect ratio electric aircraft in the future.
Computational Model of Cultural Preservation based on Cellular Automata
Authors: Shu Zeliang , Zhang Xinmiao , Jiang Hanlin 
Published: March 2021

Abstract
The competition and integration of cultures is an unavoidable trend in the context of globalization, and immigration behavior has significantly accelerated the process of cultural transmission and integration. Cultural change is an evolutionary process in a complex social system. At present, scholars in this field mainly use the complex network model, Axelrod’s cultural communication model, and cellular automata model to simulate the evolution of culture. The process of. Among them, the cellular automaton is a mathematical model with discrete time, space, and variables. Based on the above characteristics of the model, the affected population can be divided into small rectangular units, and time can be divided into units at the same time. Effectively simplified the simulation process.
Reliability Analysis of Zipline Project in A Mountainous Eco-tourism Scenic Spot
Authors: Guo Yanhui , Yang Yi , Yang Zhiquan , Ao Fuxing 
Published: March 2021

Abstract
In order to study the reliability and safety of the zipline project of an ecological cultural tourism scenic spot, Zhenxiong County, Zhaotong City, Yunnan Province, based on the field investigation and data collection, the three-dimensional model of the project is constructed by Midas civil, and the reliability of the zipline structure under pedestrian load is calculated. The calculation results show that after the completion of the zipline, the overall maximum combined displacement is concentrated in the middle of the span, the displacement is small, and the overall combined displacement of the zipline decreases to both ends of the tower; under the action of human load, the stress of the zipline and the cable tower increases, and the displacement of the main components also increases obviously, but it is within the acceptable range as a whole. The research results provide a reference for the normal operation of the project.
Three Dimensional Cellular Automata Sand Castle construction Model Based on Step Factor
Authors: Zhang Siwei , Zhou Yichen , Zhou Xi 
Published: March 2021

Abstract
It seems that everyone has the experience of making sandcastles on the leisure beach. In order to know how to build a beautiful and sturdy beach castle, this article simulates and analyzes the process of sand castles being eroded by water, and obtains some factors that extend the life of sand castles. First, we model the waves. Simplify the waves into a sine wave. Using calculus and fluid mechanics, the water wave impact force on a particle on the sand castle was calculated. Second, we model the sandcastle. Discretizing time, space, and state, we innovatively introduce the concepts of friction and impact into the model, and propose a new Three-dimensional Cellular Automaton model combined with step factors. We consider each gravel or water molecule as a cell, and simultaneously introduce the moving probability and collision probability to describe the moving trend and collision between the gravel cells, respectively. In order to effectively describe the loss of sand castles in the waves, the gravel cells that are in direct contact with the water cells will receive an impact force calculated by the first model. According to the law of large numbers, we use enough cells to simulate the erosion of sandcastles by the waves. It was found that within a certain range, the farther from the ocean and the more the total gravel, the stronger the anti-erosion ability of the sand castle.