bluuebunny/crossref_metadata_2025 huggingface dataset:
The Application of DIR Agricultural Supply-side Reform Thinking Model based on Computer Media Marketing in Northwest Shandong Province
Authors: Li Ling
Published: July 2020

The core of DIR agricultural supply-side reform thinking model from the perspective of computer multimedia marketing is to change the traditional agricultural model, reshape the mechanism with market-oriented services as the core, and promote the development of the agricultural industry. The deep connotation behind it is to use computer multimedia marketing to promote agricultural efficiency, agricultural modernization and information technology and a series of agricultural industry development trends. At present, more and more advanced technologies such as “Internet plus”, the Internet of things, cloud computing, big data and multimedia marketing have been applied in China’s agricultural production. To some extent, this has accelerated the transformation of agricultural production mode and reconstructed the operation mode of agricultural industry chain in various fields. In the future, the computer multimedia platform will provide a series of supporting services for large operators, forming a perfect, highly open and Internet eco-sphere symmetrical agriculture[1]. The integration of the development of agricultural multimedia marketing will become an inevitable trend of comprehensive development.
On the Application Prospect of Computer Graphics in Mineral Resources
Authors: Han Lingfei
Published: July 2020

The exploitation and utilization of mineral resources plays an important role in promoting the country’s economic development and social progress. With the rapid development of industry and science and technology, the scale of mineral resources development and utilization has expanded thousands of times, because mineral resources are non-renewable resources, so the cost of exploitation and utilization is low and the efficiency is high. With the development of computer graphics, it is expected to be applied to mineral resources. This paper introduces the development and application of computer graphics, summarizes its application characteristics and types, and plays a guiding role in its subsequent application and development in mineral resources.
Research on Separation Process of Coarse Slime of Hydrocyclone Based on Computer Information Technology
Authors: Meng Lingli
Published: July 2020

The terminal equipment of the slime treatment system needs to realize that the slime water can be directly recycled or meet the conditions of direct discharge. The slime selection process has two main parts: first, the selection process and second, the product dehydration process. The slime recovery and recovery process has two main parts. The first is coarse slime recovery and dehydration equipment and the second is fine slime recovery and dehydration equipment. The above factors are the necessary conditions to realize the closed circuit of slime water. In these mitigations, the use of computers to complete their work can effectively increase production and this article studies them.
Preparation of Imidazoline Corrosion Inhibitor by Catalytic Oxidation Based on Computer Aided Technology
Authors: Leng ManXi , Wang XinPing , Lu XingYu , Liao Li
Published: July 2020

Alkyl imidazoline corrosion inhibitor was prepared with Cocinic and diethylenetriamine (DTA) as reactant and xylene as water carrier. The relationship between the preparation process, molecular structure and the corrosion inhibition performance of boiler water system was studied by computer aided technology. The results showed that temperature, reaction time and reactant ratio were the key factors affecting the yield. Carbon steel corrosion inhibition rate of alkyl imidazoline derivatives in boiler water can reach more than 80%. The corrosion inhibitor has a strong inhibitory effect on the dissolution process of the corrosion anode and the depolarization process of the cathode, so it can be considered as a mixed corrosion inhibitor of carbon steel based on the anode. The reason of corrosion inhibition is that the corrosion inhibitor adsorbs on the surface of carbon steel and forms a thin film, effectively blocking the contact between the steel surface and water.
Study on Dynamic Output Characteristics of Liquid - viscous Speed Regulating Clutch and Simulation Analysis of Dil Film Flow Field Between Friction Plates Based on Computer Simulation Technology
Authors: Yu Meili
Published: July 2020

To improve the drive torque without increasing the installed power of the system, a drive system of “motor + fly wheel + hydroviscous variable speed clutch” is designed. The mathematical model for each energy transmission link of the drive system, the oil film bearing capacity model and the Computer simulation model for the drive system are established to reveal the influence law of the factors such as the fly wheel moment of inertia (MOI) and oil film thickness control curve on the dynamic engagement features of hydroviscous variable speed clutch, obtain the change curve of torque, speed and impact, and build the corresponding experimental bench. The results of the simulation experiment suggest that through reasonable control of the oil film thickness of the hydroviscous variable speed clutch, the output of twice the rated torque that lasts up to 50 s can be achieved to meet the engineering demand of large and medium-sized mechanical equipment for large starting torque and small impact.
Research on Urban Landscape Planning and Design Based on Elastic City Model of Computer
Authors: Jiang Mingzhuo
Published: July 2020

Contemporary cities are facing natural disasters such as floods, earthquakes and climate change. The acute impact of poverty and economic fluctuation and the emergence of some chronic pressures lead to the fluctuation of urban economic level and development speed. Cities need to build resilient systems to deal with these crises. At present, the government has built the research framework of resilient city in the fields of urban system and disaster risk management. The establishment of elastic framework is conducive to the research and practice of elastic city. Moreover, it is found that the innovation and development of elastic cities play a very important role in promoting the scientific planning and construction of cities.
Research on General Cost and Engineering Investment Analysis Method of China National Network Using Computer Information Technology
Authors: Xu Nan , Yang Hongwei , Song Yan , Liu Zhao
Published: July 2020

With the continuous progress of the electronic industrial revolution, computer has become an indispensable tool for social progress. At present, computer information technology has been widely used in the field of power grid construction engineering. According to the characteristics of computer information technology, this paper puts forward the method of identifying the general cost and project investment of the national network with the help of information technology.
RETRACTED: The Intelligent Extraction of Cost Analysis Data of Transmission and Transformation Project Based on Computer Technology
Authors: Xu Nan , Xu Ning , Song Yan , Wang Dongchao
Published: July 2020

Transmission and transformation project is related to the national economy and people’s livelihood, and its development and construction level is directly related to the national life happiness. The full development of computer technology has brought good news to many fields, and the construction of power transmission and transformation projects has also benefited deeply. This paper probes into the application of computer technology in the field of power transmission and transformation engineering cost analysis, points out the three difficult problems it faces, and gives the corresponding solutions.
The Method and Static Analysis of Making Well Logging Interpretation Standard of Oil-water Formation by Network
Authors: Shi Pei
Published: July 2020

In this paper, the research of oil and water logging is carried out again and a recognition standard suitable for people to distinguish the oil and water layers in the oil area is established. In addition, this paper reviews 47 old wells in Xia Er Men.
Obstacles to the Transformation of Scientific and Technological Achievements and Countermeasures Based on Computer Technology
Authors: Zhang Ping
Published: July 2020

As the environment and situation changes in the transformation of scientific and technological achievements, the decisive role of the market in the transformation of scientific and technological achievements has become increasingly critical. The insufficiency of some existing technologies in China has become the institutional obstacles to promoting the transformation of scientific and technological achievements. In this paper, the domestic transformation technologies of scientific and technological achievements are consolidated. The institutional factors that constrain the transformation of scientific and technological achievements in China under the new situation are analyzed. The countermeasures and suggestions for building the transformation system of scientific and technological achievements in China are proposed from the perspectives of playing the role of the market, improving the transformation and disposal right for scientific and technological achievements, changing the scientific and technological evaluation system, valuing the overall technological coordination, reforming the evaluation mechanism, etc.
RETRACTED: Study on the Effect of Focused Ultrasound Excitation on Image Resolution Based on Computer Technology
Authors: Wang Qian
Published: July 2020

With the continuous development of modern science and technology, ultrasonic testing is applied in various fields, and plays an important role in the field of detection. Ultrasound imaging is mainly used in medicine to detect the health of internal organs and to defect fetal development in obstetrics and gynecology. In addition, ultrasonic wave is widely used in welding inspection in the mechanical industry, and the downhole ultrasonic imaging is used in tunnel engineering. With the development of ultrasonic testing technology, there are many kinds of ultrasonic testing methods at present. This paper mainly discusses the influence of focused Based on Computer Technologyultrasonic’s excitation on imaging resolution, and finds out the law to perfect the ultrasonic testing means and improve the final imaging resolution. Focused ultrasonic excitation, also known as ultrasonic phased array detection technology, is an emerging non-destructive testing technology that has been developed and popularized in recent years[1]. Discussing and studying the influence of focused ultrasonic excitation on imaging resolution is of great significance to optimize this new technology. In the development of ultrasonic imaging technology, it is the responsibility of every relevant researcher to constantly explore ways to optimize the technology.
Research on Computer Information Management Platform of Construction Technology in Construction Enterprises
Authors: Zhao Qiliang
Published: July 2020

With the continuous progress of society, people’s demand for quality of life is higher and higher, and in the work, all industries are paying more and more attention to excellence. In the construction of construction enterprises, with the progress of construction technology and the more powerful function of mechanical equipment, the position of computer information management in it is becoming more and more important. This paper discusses the function and necessity of computer information management system in building construction technology, and demonstrates it with examples.
The Application of Big Data Technology in the Research of Ancient Chinese Silk Road
Authors: Bao Qiuyuan
Published: July 2020

The wide application of information technology has caused the rapid increase in the amount of data generated in people’s work and life, which has spawned big data technology. Modern information technology such as GIS has played a vital role in the geographical research of the ancient Chinese Silk Road, and it can be used as an important way for the multidisciplinary development of Silk Road research. The data analysis technology represented by the word frequency analysis method also provides an efficient means for the historical research of the Silk Road.
RETRACTED: Study on the Application of Gangue Mixture in Road Engineering Based on Computer Technology
Authors: Hu Rong , Zhou Yan
Published: July 2020

With the development of environmental protection in modern society, the concept of waste utilization has been put forward by researchers. Waste fuel and stone will pollute the environment. They also take up a lot of public resources. In an industry, they are useless. With the concept of waste utilization put forward, people think of many ways to deal with the corresponding waste materials. Coal gangue is a kind of industrial waste with the largest storage capacity. In the process of industrial production, gangue is useless. However, in road engineering, the combination of coal gangue and coal ash can be used as the base material of the road. This paper studies the application of coal gangue mixture in road engineering based on computer technology, and finally draws the corresponding conclusion.
A Study on the Cultivation of Practical Teaching Ability for Normal University Students Based on the Perspective of Core Literacy
Authors: Wang Rong
Published: July 2020

Teaching is a humanistic, interactive and creative activity. The practical teaching ability of normal university students plays an important role in the realization of students’ knowledge transformation, knowledge transfer and innovative creativity. At present, the number of teachers at all levels in China is about 30 million, but the proportion of teachers with higher theoretical level and stronger practical teaching ability is still low, which brings some obstacles to the realization of the goal of quality education in basic education. According to the questionnaire survey on the practical teaching ability of 600 students in 80 normal universities in 20 provinces, 67.9% of the current normal students are lack of professional growth ability and teaching quality is stable due to many practical reasons, such as the overall level of practical teaching ability of normal students is low, the development of practical ability training channels is insufficient, and the lack of pre job training attention Therefore, we should strengthen the training and training of the practical teaching ability of normal students. Based on the perspective of nuclide cultivation, this paper explores the training strategies of normal students’ practical teaching ability under the big data analysis mode, and puts forward three corresponding development strategies of practical teaching module, assessment mode and interdisciplinary humanistic quality.
Numerical Simulation Analysis of Power Battery Chassis of Electric Car
Authors: Cao Xianhong , Li Jicheng
Published: July 2020

The 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

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

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

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

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

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

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

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

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

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

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

The 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

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

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

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

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

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

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

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.
Seismic Response Analysis of Buckling Restrained Frames
Authors: Zhang Xuyang
Published: July 2020

The frame structure system uses additional buckling restraint support, which greatly improves the shear strength and lateral stiffness of the entire structure, and plays a positive role in reducing the displacement between layers and the overall displacement of the structure. When the additional buckling restraint support is used in the frame, the hysteresis curve of the system is fuller, which greatly improves the energy consumption capacity of the structure. The descending section of the stent skeleton line breaks through the traditional limitations, and its descending degree slows down as the displacement increases. The lateral stiffness of a buckling restrained frame is poor, and usually requires large beam and column sections to meet the requirements. Under the action of earthquakes, the support of buckling restrained frames is prone to buckling and instability, resulting in a sharp decline in its seismic resistance. The purpose of this paper is to analyze the seismic response of buckling-restrained frames. In terms of methods, this article mainly starts from the design method and principles of buckling restrained braced steel frame, and then designs and discusses the buckled restrained braced steel frame. Then it designs the BRB size and uses the Perform-3d software to build a nonlinear structural model. Use time history analysis to analyze some possible problems in the building. In terms of experiments, this paper mainly analyzes the seismic response of a building, and introduces the situation of the building and its analysis in terms of earthquake prevention. From the four strong earthquake records recorded in this paper, it can be seen that the maximum value of the seismic acceleration time history increases with the increase of the earthquake intensity. And the earthquake impact of rare earthquakes will be greater than that of more frequent earthquakes under the same intensity. From the data of structural analysis, the period of the original structure is greater than the period of the BRB structure under the same mode shape. As the mode shape increases, the period difference decreases and converges.
An Analysis of the Influencing Factors of Carbon Dioxide Emissions -- Base on the Consumption Choice
Authors: Jiang Hao
Published: July 2020

In the process of economic construction, the development of the economy will have an impact on the environment, whether it is good or bad. This paper selects carbon dioxide emissions as an indicator of environmental quality. And the population in each period of each country, the per capita electricity consumption of each country, the proportion of coal, oil and natural gas power generation in each period of each country, the ratio of education expenditure to GDP in each country, the ratio of forest area in each country to the national area, and the price of gasoline in each period of country as six explanatory variables. The empirical analysis of the above variables yields conclusions that the economic development will have a negative impact on the environment and give relevant recommendations.
Numerical Simulation on Bubble Growth and Micro-explosion Characteristics of Biodiesel/ethanol Fuel Droplets
Authors: Zhang Yishan , Ning Zhi , Lv Ming
Published: July 2020

In this paper, the biodiesel/ethanol gas-containing fuel droplet was numerically simulated at room temperature. The growth characteristics of the bubble growth process were obtained, and the influencing factors affecting the bubble growth and micro-explosion process were explored. Studies have shown that bubble growth and droplet micro-explosion at room temperature are dominated by the pressure difference between the inside and outside of the bubble. Within a certain range, reducing the initial radius ratio of droplets as much as possible can also promote the bubble growth and micro-explosion of droplets. The proportion of fuel in the droplet will also affect the bubble growth and micro-explosion characteristics.
Feasibility Study of Cement Modified Mastic Emulsified Asphalt Concrete
Authors: Zhang Fengning , Wang Yanning , Lu Cheng-Tsung
Published: July 2020

Cement Asphalt Concrete (CAC) is a newly developed cold-mixed pavement material at room temperature. In this paper, a kind of cement fast-cracked emulsified asphalt mastic and a gradation of stone mastic asphalt was used to obtain a high-performance pavement material. This material improves the gradation by calculating volume parameters and observing the state of the concrete, and then we determine the optimal cement asphalt mastic content through specific gravity, Marshall stability value and aggregate wrapping state. Finally, the Marshall stability value, flow value, indirect tensile strength and Cantabro loss were used to evaluate the performance of Stone Mastic Cement Asphalt (SMCA), Continuous-graded Cement Asphalt (CCA) and SMA. This paper shows that SMCA’s technical performance is relatively similar to CCA, and the Cantabro loss is much lower than CCA. In comparison with SMA, except for flow value, other performances are higher than SMA.
Aesthetic Values and Creation Strategies of Plant Landscape in Dong Villages, Sanjiang County, Guangxi
Authors: Zhu Wenshuang , Han Jinjiang , Yin Yi
Published: July 2020

As an important element in village settlement space, plants are also the major resource constituting a settlement environment in Dong Villages, Sanjiang County, Guangxi. Plant landscape in Dong Villages, Sanjiang County is closely associated with people’s life in Dong Villages and it is presented by mountain forests, rice fields, gardens, houses and the like, becoming an important constituent in national culture of Dong Nationality. Through research on regional characteristics of plant landscape in Dong Villages, Guangxi and presentation of its aesthetic features concerning forms, colors and artistic conceptions, relevant references and suggestions can be provided for inheritance of plant landscape culture of Dong Nationality as well as creation of village landscape.
Cause Analysis and Structural Measures of Seepage in Basement——Take the Basement of Student Apartment in the East Campus of XXX College as an Example
Authors: Zhang Yan , Zhu Kun , Zhang Wenjia , Pang Boshi
Published: July 2020

According to the problem of basement seepage, the paper analyzes the reasons of seepage synthetically, selects suitable waterproof materials according to different positions, and puts forward corresponding prevention measures and specific construction methods.
Optimization Analysis of a Long-span Glulam Beam String Structure
Authors: Yuan Zhiren , Fang Linfu , Yuan Shuaifeng , Sui Yane
Published: July 2020

The force analysis for a long-span glulam beam string of a swimming pool roof was made by SAP2000 finite element software. It was found that the long-span glulam beam string structure is reasonable, which can significantly reduce deflection and improve the structural performance. In the preliminary design, the stress of the glulam beam string is uneven. The structure is optimized with balanced struts and better performance.
Seismic Performance Analysis of Exterior-Corridor Type and Middle-Corridor Type Architecture
Authors: Li Jiuyang , Li Fangqi , Li Daozheng , Han Fang
Published: July 2020

In this paper, SAP2000 FEM simulation software has been used to carry out modal analysis, response spectrum analysis, time-history analysis and other seismic performance researches on the structural layout scheme and optimal number of floors of certain proposed reinforced concrete frame teaching building respectively built in exterior-corridor type and middle-corridor type in order to compare the seismic performance of the structure under different working conditions. According to the analysis, the seismic performance of middle-corridor type architecture is obviously better than that of exterior-corridor type architecture along with the increase of seismic fortification intensity, while the increase of storey height within certain scope does not affect the seismic performance of these two types notably, thus providing the theoretical basis for engineering design.
Characterization of Cebu Province Municipalities using Probabilistic Seismic Hazard Assessment (PSHA) And Geographic Information System (GIS)
Authors: Uy Erica Elice S. , Paringit Maria Cecilia R. , Cutora Miller D.L. , Galupino Joenel G. , Garciano Lessandro Estelito O. , Dungca Jonathan R.
Published: July 2020

Cebu province is considered to be one of the most developed provinces in the Philippines with 2.94 Million population. Last October 2013, a Magnitude of 7.2 earthquake affected the province and left a death toll of 222. Many of the cultural heritage structures were affected, and with this it is important that seismic assessment is performed for the province of Cebu. Information regarding its vulnerability to earthquake damages is needed to lessen the casualties. In this study the structures were assessed though Probabilistic Seismic Hazard Assessment and thoroughly characterized qualitatively according to Low, Medium and High Priority by Geographic Information System (GIS). These characterizations may be used as basis for seismic provisions in building codes, budget allocations for risk reduction and for risk models.