bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical Simulation Analysis of Power Battery Chassis of Electric Car
Authors: Cao Xianhong , Li Jicheng 
Published: July 2020

AbstractThe power battery is not only the power source of the electric car, but also one of the important factors affecting the safety of the electric vehicle. The structural mechanical characteristics of the power battery chassis is the primary condition to ensure the normal operation and safety of the battery. In this paper, the chassis of the power battery of the car is taken as the research object, and the static analysis and modal analysis are carried out by using the method of finite simulation. The results show that: under the influence of the weight of the battery module, the battery chassis will be deformed by 0.2mm, which will not have a great impact on the production of the power battery; when the external interference frequency is between 30.61-137.24Hz, attention should be paid to avoid the resonance phenomenon of the power battery structure.
Optimization Layout of Marketing Management Information System of Hotel and Restaurant Based on B / S Mode
Authors: Gao Fang 
Published: July 2020

Abstract
With the rapid development of the hotel industry in China, more and more hotels adopt information management system to deal with a lot of information to realize the automation and informatization of hotel management. This article analyzes the research status of hotel food and beverage marketing management at home and abroad, and designs a new type of hotel food and beverage marketing management information system, the system functional requirements, and each function module in detail analysis, through the test, verifies the practicability of the system.
Research on Eye Movement Characteristics of Different Level Basketball Defenders in Sports Decision-making Scenarios
Authors: Yu Hao , Li Linyao 
Published: July 2020

Abstract
Based on the study of basketball and the cognitive psychology, using the eye tracker to study the eye movements of high-level and average level basketball guard athletes, the results show that when looking at different sports situations, The ordinary basketball guard has different ways of watching, different ways of processing information and information processing efficiency. There are obvious differences in the accuracy and speed of decision-making of athletes with different levels, and the differences of sports decisions are drawn:the high-level athletes are integrated Type decision-making, while ordinary level athletes are analytical decision-making.
Internet+ Agriculture: An Empirical Perspective of the Internet Effect in Agricultural Economy
Authors: Chu Ruili , Tang Guanghai 
Published: July 2020

Abstract
In order to study the role and impact of the Internet on the growth of China’s agricultural economy and to promote the development of the Internet+ agricultural economy better, this paper chooses key indicators of the Internet to construct the Economic Effect Panel Model of the Internet+ agriculture. The test results show that 1) the Internet has a positive impact on agricultural economic growth. 2) Among the individual effects, the regional differences are obvious; agricultural products have distinctive characteristics; and the effect of Internet+ is more prominent in the regions of developed agricultural tourism. 3) the period effect before 2010 was negative, and after 2011 it became positive and this positive effect was increasing year by year. Based on the test results, some corresponding countermeasures and suggestions were made: 1) to increase the investment of Internet in agriculture, especially in special agriculture. For example, some kinds of agricultural tourism Internet projects should be used. 2) to enlarge investment of agricultural Internet and Internet of Things in agricultural fiscal spending, in agricultural fixed assets investment and in the construction of farmland infrastructure. 3) to strengthen talents training of Internet+ agricultural, and to improve the Making of Internet+ agricultural standards.
How to Improve the Step-up Ratio of DC Converter by Coupling Inductance and Switching Capacitance
Authors: Wang Bin , Lei Xia 
Published: July 2020

Abstract
In grid-connected power generation system, the output voltage of single photovoltaic module and fuel cell is generally low. In order to meet the requirements of the latter grid-connected inverters, DC converters need to have a high boost ratio to raise the output voltage of photovoltaic cells or fuel cells to a higher voltage. A high boost ratio DC/DC converter based on switched capacitor and coupled inductance is proposed in this paper. Coupled inductance is introduced on the basis of switched capacitor high boost ratio DC/DC converter. The voltage stress of power devices is reduced, and the conduction loss and switching loss are also reduced, which can effectively improve the conversion efficiency. Finally, the experimental results verify that using the coupled inductance could make the DC converter have higher conversion efficiency.
On the Influencing Factors of Integrated Aftertreatment System in Diesel Engine
Authors: He Naifeng , Jiang Zhongfeng , Ning Zhi 
Published: July 2020

Abstract
In order to reduce the pollutants of diesel exhaust, DOC, DPF, SCR, AOC, etc. are mainly used for off-machine after-treatment technology, but it is difficult to meet the requirements of the newest emission regulations simply by relying on a certain aftertreatment technology. Therefore, the use of integrated aftertreatment system has become a necessary choice. In this paper, the research object is one of the integrated aftertreatment systems (DOC+DPF+ SCR+AOC). Then, the effects of the different exhaust parameters, the different structural parameters and different chemical reaction parameters on the catalytic conversion efficiency of NOx, HC, CO, and PM are studied.
Distributed Charging and Discharging Strategy for Electric Vehicle Considering Three-Phase Load Balance for Incremental distribution network
Authors: Song XinFu , Xin Chaoshan , Jing Shibo , Huang Dawei , Ma Chenglian 
Published: July 2020

Abstract
The unbalanced three-phase may occur in distributed network with large-scale uncontrolled charging loads of electric vehicles plugged in, at present, most of the researches on the coordinated electric vehicles charging and discharging strategies are based on the assumption of single-phase power networks, the load balancing constraints of three-phase are not considered. In this paper, a centralized charging and discharging optimization model for electric vehicles is established aiming to achieve a valley-filling concept, it can allocate electric vehicles demand during valley hours. Based on this, a distributed charging and discharging optimization method for electric vehicles considering three-phase load balancing constraints is proposed, and then the centralized optimization problem is decomposed into multiple sub-optimization problems, and a penalty term is added to the single electric vehicle charging and discharging optimization objective function. Solve the three-phase load imbalance problem in distribution network operation, and use CPLEX solver to solve the optimization model in MATLAB. Combining with information interaction mechanism, through the method of iteratively correcting the virtual electricity price, the orderly intelligent charging and discharging of electric vehicles can be realized. The IEEE 33-node distribution system is used for simulation analysis to verify the characteristics and effectiveness of the proposed method.
Common Problems in Stress Analysis of Concrete Cutoff Wall Based on Big Data Analysis
Authors: Ma Long , Cai Shixiang , Liu Zhenling , Li Yingying 
Published: July 2020

Abstract
In order to ensure the safety of various buildings, the application of concrete cut off wall in various buildings is more and more extensive. The stress of cut off wall is directly related to the stability of the wall. At present, many scholars have made in-depth research on stress analysis of concrete cut off wall. With the development of big data analysis technology, it has been applied to stress analysis of cut off wall. With its application and further research, it can be found that there are some common problems in stress analysis of concrete cut off wall based on big data analysis, which affect the accuracy of analysis results. Therefore, it is urgent to study these problems in depth. Based on the analysis of big data, this paper collected and processed the stress data of cut off wall in detail, and obtained the common problems in stress analysis of concrete cut off wall with the help of clustering analysis algorithm, and put forward relevant improvement Suggestions on this basis. It not only guarantees the accuracy of the stress analysis results, but also has reference significance for the future related research.
Structure and Stress Mechanism of Snti-buckling Support for High-rise Connected Structures
Authors: Guo Chenghua 
Published: July 2020

Abstract
This article explores the characteristics, composition, and design requirements of high-rise intelligent buildings, analyzes their superiority and social benefits, and studies their construction principles and future development trends. It is people-oriented, device-oriented and function-oriented. The original three major structural systems have been increasingly unable to meet new requirements. This paper seeks a new seismic system that is both safe and able to protect the instruments and equipment inside the building, and can be connected to the main structure of the structure for normal operation and economically. After a thorough discussion of the latest proposed seismic design methods and performance-based seismic design, this paper proposes performance-based structural seismic design countermeasures with the characteristics of high-rise intelligent buildings. Determine the target performance according to the owner’s requirements and building functions and investment benefit criteria; then determine the safety indicators of the high-performance intelligent building based on the performance structural design; compare the three optimization decision models for the reliability of the performance-based structural targets; An evaluation model of initial cost, inspection and maintenance costs, and failure loss costs. A reliability optimization decision-making model based on performance and earthquake resistance for a high-rise intelligent building is established. The research results show that the maximum displacement of the model structure in the X direction is 14.8mm and 13.8mm, and the maximum displacement in the Y direction is 13.7mm and 12.9mm, respectively. The maximum displacement of the latter in the X and Y directions is compared with the former. From the perspective of the curve change, the displacement change curve of the anti-buckling support frame is always smaller than the displacement curve of the ordinary support frame.
Effect of Solution Treatment on Microstructure and Properties of Al-20Si-1.5Mg Cast Aluminum Alloy
Authors: Zhao Gaozhan , Gao Liqiang , Chen Wen , Huang Zhiwei , Xing Zhihui , Chai Shuxin 
Published: July 2020

Abstract
The effects of the main process factors such as temperature and time on the microstructure and properties of hypereutectic Al-20Si-1.5Mg alloy were analyzed. The results show that when the solution treatment process is 510 °C × 6h, the primary silicon, eutectic silicon and Mg2Si in the sample structure have been solution maximized, and the morphology distribution has been optimized, which is related to the passivation effect of solution treatment on silicon phase, etc.; At the same time, the hardness decreases first and then increases with the extension of solution time, and the inflection point appears at 6h. Compared with the as cast structure, the hardness is reduced by more than 15%. At this time, the super saturation of the alloy is the largest, which is conducive to obtain the best aging strengthening effect.
Teaching Mode of “Integration of Theory and Practice” of NC Machining Technology and Programming in Application-Oriented Universities
Authors: Zhu Xiurong 
Published: July 2020

Abstract
This paper analyzes the current teaching situation, problems, causes and solutions of the course of NC machining process and programming in the application-oriented undergraduate colleges; constructs the teaching mode of NC machining process and programming with the integration of theory and practice, and analyzes the teaching mode in depth; takes the teaching project of rectangular groove plate of comprehensive parts as an example to carry out the teaching design, and specifically explains “theory and practice one” The application of physical teaching mode. Summarize and reflect on the inadequacies of the research, as well as the thinking of future research.
Performance-Based Structural Seismic Method in High-rise Building Design
Authors: Guo Chenghua 
Published: July 2020

AbstractThe rise of intelligent buildings in China is based on two reasons. One is that with the reform and opening up, China’s national economy has continued to develop rapidly, its overall national strength has been continuously enhanced, and people’s living standards have been improved. People urgently need to improve and enhance their working and living environments. Architecture is just one of the important ways to meet this demand. Performance-based seismic design is based on the investment-benefit criterion as a basic principle, reflecting an important change in the seismic design thinking of modern structures, that is, focusing on structural safety from the past. To develop a comprehensive focus on structural performance, safety and economy. It makes the seismic design transition from macroscopically qualitative goals to concretely quantified multiple goals. Designers can choose the required performance goals, which is conducive to the innovation of building structures, using new structural systems, new technologies, and new materials; it is beneficial to adopt different performance goals and earthquake resistance for different fortification intensity, site conditions, and the importance of the building Measures. It is a change in the design concept and plays a significant role in the design and development of engineering structures. This paper explores the characteristics, composition, and design requirements of high-rise intelligent buildings, analyzes their superiority and social benefits, and studies their architectural principles and future development trends. High-rise intelligent buildings were born to meet the higher requirements of office and living environments. It is a combination of architectural art and information technology. It is the four basic elements of structure, system service and optimal combined system management, providing a safe, efficient, comfortable and convenient built environment. At present, only the uncertainty of the load, the strength of the material, the geometric dimensions and the uncertainty of the calculation model are usually considered. For the artificial uncertainty, the complexity and uncertainty of the economic loss estimation due to the complexity of earthquake damage As a result, it is very difficult to accurately estimate economic losses, especially the estimation of indirect losses. Therefore, the establishment of a performance-based reliability optimization decision-making model for high-rise intelligent buildings requires further research and improvement. To build more detailed and specific models for different types of requirements.
Load of Reinforced Concrete Composite Bridges
Authors: Wang Qi 
Published: July 2020

Abstract
At present, the proportion of bridge construction in China is increasing, especially in recent years with the continuous improvement of construction technology, more and more difficult bridge construction success, a variety of cross-sea Bridges are also rising rapidly. The traditional bridge structure is mainly steel structure, which has high strength, plasticity and toughness. However, the stability of the bridge will be more or less affected when the steel reinforcement is subjected to tension, which is not conducive to ensuring the safety and stability of the bridge. With the continuous improvement of technology, the comprehensive application of concrete and steel is gradually applied in belt bridge construction, and composite bridge has gradually become the main form of bridge construction. The purpose of this paper is to realize the safety construction of composite Bridges by studying the load of reinforced concrete composite Bridges. This paper first gives an overview of the reinforced concrete composite Bridges, and then with the help of section stress calculation, carries out a detailed analysis of the load situation of composite Bridges, and on this basis, realizes the continuous improvement of composite Bridges construction level. The experiments in this paper show that the composite bridge structure is in a safe and stable state, and its safety coefficient is higher than that of the non-composite bridge.
Humanized Design Concept in Product Packaging Design
Authors: Wang Zhenze 
Published: July 2020

Abstract
With the improvement of social progress and economic level, when people’s material level reaches a certain level of satisfaction, the pursuit of higher levels of spiritual enjoyment begins. The same is true of the need for packaging opening design, because it not only meets pure functionality, but also embodies the emotional value of the open process. Studying the humanized packaging design of children’s products to better protect children’s health and safety, meet the psychological needs of children and aesthetic emotions, improve the quality of children’s products, promote the sale of goods, and it is very important for the prosperity of the socialist market economy. important. This article uses the basic functions of children’s products packaging to explore the safety of children’s food and drug packaging and the convenience of children’s product packaging, so that the design is more humane; from the visual characteristics of children at different ages, the final experiment is to investigate the cartoon image. Use, interactive design of life situation, bionic design and fun design to meet children’s psychological needs and aesthetic emotions, so as to realize the humanized design of children’s products packaging. Experimental research shows that parents and students’ satisfaction with the humanized design of children’s product packaging has reached 98%.
Study on the Sugar Water Concentration Measuring Instrument
Authors: Huang Jian , Bai ZiChen 
Published: July 2020

Abstract
A new type of sugar water concentration meter was studied. When the concentration of sugar water changes, the capacitance will change. A test device is built to insert a metal sheet into the sugar water. When the concentration of sugar water changes, the parasitic capacitance on the metal sheet changes. The change is measured by a microprocessor, and the functional relationship between the capacitance and the concentration of sugar water is determined through experiments. The test results show that the method can detect the concentration of sugar water quickly with an accuracy of 0.1%.
Fault Reconfiguration of Distribution Networks with Soft Open Points Considering Uncertainties of Photovoltaic Outputs and Loads
Authors: Shi Xuntao , Ke Qingpai , Lei Jinyong , Yuan Zhiyong 
Published: July 2020

Abstract
Conventional fault reconfiguration methods assume determinant values for loads and distributed generators outputs, which may lead to a reconfiguration solution that cannot satisfy operational constraints. This paper proposes a fault reconfiguration method for distribution networks with soft open points (SOPs) considering the uncertainties of photovoltaic (PV) output power and loads. Firstly, a fast probabilistic power flow method based on voltage sensitivity for distribution networks with SOPs is proposed to evaluate each reconfiguration scheme. Then a fault reconfiguration model considering uncertainties of PV output powers and loads is formulated and solved to minimize load shedding and line losses. The effectiveness of the proposed reconfiguration method is verified using the modified 33 and 69-bus distribution systems. The proposed method is shown to be very fast and can provide reliable reconfiguration schemes satisfying all system operation constraints.
Optimal Configuration of Energy Storage Capacity on PV-Storage-Charging Integrated Charging Station
Authors: Liu Yaqi , Cui Xiaoqing , Wang Jing , Han Weimin , Zhang Jing 
Published: July 2020

Abstract
The rational allocation of a certain capacity of photovoltaic power generation and energy storage systems(ESS) with charging stations can not only promote the local consumption of renewable energy(RE) generation, but also participate in the energy market through new energy generation systems and ESS for arbitrage. In this paper, a system operation strategy is formulated for the optical storage and charging integrated charging station, and an ESS capacity allocation method is proposed that considers the peak and valley tariff mechanism. First, the system modeling of the photovoltaic storage and charging station is carried out, the topology structure is analyzed and the cost model of photovoltaic power generation and ESS and dispatching is established; second, the energy flow of the photovoltaic storage and charging station is analyzed and the system operation strategy is formulated; then, the optimal model of ESS capacity configuration is established with the goal of obtaining the maximum benefit from the photovoltaic storage and charging station under the peak and valley electricity price environment; finally, the optimal ESS capacity configuration of the photovoltaic storage and charging station is analyzed based on specific cases and the impact of the change of ESS price on the optimal capacity configuration is discussed.
Scheduling Strategy of PV-Storage-Integrated EV Charging Stations considering Photovoltaic Output and User Demand Uncertainty
Authors: Liu Guoming , Kang Kai , Yu Hui , Lv Zhixing , Li Tengchang , Zhang Jing 
Published: July 2020

Abstract
The PV-Storage-Integrated EV charging station is a typical integration method to enhance the on-site consumption of new energy. This paper studies the optimization of the operation of PV-Storage-Integrated charging stations. Firstly, considering the uncertainty of photovoltaic output and user’s charging demand, a photovoltaic output model and a user charging behavior model were constructed. Secondly, the optimal economic operation model of the PV-Storage-Integrated EV charging stations is proposed based on the cost of purchasing power from the distribution network and the life loss cost model of the battery cycle. The constraints such as the charging and discharging power of the battery and the SOC range of the energy storage battery are considered. Finally, optimal scheduling schemes in different typical scenarios are analyzed, and the results show the effectiveness of the proposed optimal scheduling scheme.
Fracture Types and Its Control Factors in Tight Oil Reservoirs
Authors: Fan Xianming , Gao Shuai , Su Xiaocen , Wang Jie , Lu Qi 
Published: July 2020

Abstract
Fractures are well developed in tight sandstone reservoirs, which are the main reservoir space and important seepage channel. Fractures control the migration, accumulation, preservation and single well productivity of tight oil and gas, and affect the drilling and completion methods, fracturing reconstruction measures and production effect of tight oil exploration and development. This paper mainly studies the genetic type, development characteristics and control factors of fractures in tight reservoirs. According to the geological origin of fractures, there are two types of structural fractures and diagenetic fractures in the study area, among which high angle structural fractures are the main one, and it is layer controlled fracture. The degree of fracture development is controlled by lithology, formation thickness, sedimentary micro and other rock heterogeneity factors.