Table of contents

2020 International Conference on Electronic, Electrical and Computer Applications (ICEECA2020) will be held in Osaka, Japan, from May 28th to 30th, 2020. The meeting will focus on the latest research fields of "electronics", "electricity" and "computer application", and will provide an international platform for experts, professors, scholars and engineers from institutions of higher learning, scientific research institutes, enterprises and institutions at home and abroad to share professional experience, expand professional networks, exchange new ideas face to face and display research results, and explore key challenges and research directions for the development of this field. It will also help to establish business or research contacts for attendees and seek global partners for future careers.

COVID-19 Update: ICEECA2020 to go virtual

As you know by now, agencies around the world are now issuing restrictions on travel, gatherings, and meetings in an effort to limit and slow the spread of the COVID-19 virus. The health and safety of our participants and members of our research community is of top priority to the ICEECA2020 Organizing Committee.

List of International Advisory Committee, General Chairs, Technical Program Committee are available in the pdf.

All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the proceedings Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.

For a comparative study of the practical application of screening methods for the early diagnosis of cervical cancer in women, this paper conducted HPV, LBC and CPS screening tests for 1462 women with cervical abnormalities who came to hospital within 2 years with computer technology, and investigated the results of screening statistics, comparison and analysis. To further explore the value of the above three methods in cervical cancer screening, the results of HPV, LBC and CPS tests in 1462 patients with cervical cancer screening were further discussed in this study, and the results were obtained.

Coal slime water treatment is a very important process in coal preparation plant, its treatment effect directly affects the reuse of washing water and closed-circuit circulation index, and on the other links of coal preparation plant such as separation efficiency, the number of product quality index has a great impact, and even restricts the economic and social benefits of an important system. Based on improved grey prediction fuzzy control principle, an improved slurry flocculating settling process of feed forward and feedback control strategy, the improvement is: using fuzzy algorithm to replace the current use of conventional fuzzy control algorithm, namely according to the online setting parameters of fuzzy rules, both to overcome the difficult to eliminate the steady-state error and fuzzy control to realize accurate control weaknesses, and overcome the difficulty of parameter setting, make them form a complementary advantages. Therefore, it is of great significance to study advanced control method and improve control effect in coal preparation plant.

In the process of power grid construction, the pressure of project cost management is increasing gradually. With the continuous updating of information electronic system, people have higher and higher requirements for power grid engineering. The construction task of power grid engineering is more important. Standards for grid engineering have been revised to a higher level. The construction cost of power grid project is also increasing year by year. After years of research and practice, researchers found that the construction of three-dimensional cost standard system is the main opportunity to help power grid engineering improve the overall level. Based on the computer technology and three-dimensional structure of power grid and the actual characteristics and application of power grid engineering, this paper describes the main standards for the construction of power grid engineering cost system. Finally, the guarantee of its future development is put forward.

This paper mainly discusses the connotation of enterprise craft culture construction from the perspective of computer technology enterprise culture construction. The ideas and methods of building craftsman's spirit and culture under computer technology are put forward.

Foundation pit support is the key link in the construction of engineering construction, and it is also an important guarantee for the overall safety of engineering construction. At present, the country and society have higher and higher requirements for the quality of engineering construction, and the construction conditions of engineering projects are more and more complex, which makes the traditional engineering foundation pit support design and construction methods exposed more and more disadvantages. ITASCAD is to create an international level of large software for the geotechnical industry. Therefore, this paper expounds the problems existing in the design and construction of engineering foundation pit support, and discusses the typical application cases of Itascad technology in engineering foundation pit support. Based on the study of several practical cases, this paper analyses the breakthrough and innovation brought by the application of Itascad technology for engineering foundation pit support, and provides a new thinking direction for the development of foundation pit support technology.

With the further deepening of reform and opening up, China has gradually begun to study the horn. The horn, with its unique charm, integrates woodwind instruments with brass instruments and becomes a complete art. In this paper, the application of the French horn based on fusion features in Chinese symphonies is analyzed by computer aided technique. It further shows that the French horn plays an important role in Chinese symphonies.

To address the problems of time-consuming, laborious and costly ECG expert diagnosis in the long-term massive ECG signal automatic denoising and T-wave automatic detection system, resulting in the difficulty to extract features, as well as the poor adaptability and low accuracy of the abnormal diagnosis model, we proposed an ECG signal denoising and T-wave automatic detection method based on deep learning. The method mainly includes four steps as follows: ECG signal denoising preprocessing, segmentation of ECG signal and unification of sampling points, unsupervised heartbeat feature learning, denoising and T-wave automatic detection. The structure of the deep faith network FCMDBN model and the learning denoising and T-wave automatic detection algorithm are proposed. Based on the MIT-BIH heart rate anomaly database, the simulation experiment shows that the signal diagnosis method proposed in this paper has relatively high adaptability and accuracy compared with the denoising and T-wave automatic detection by artificial design based on traditional ECG features.

As an inevitable choice for sustainable urban development, industrialized residential buildings are being paid attention to and adopted by more and more countries and regions in the world. Compared with traditional construction methods, IRB has the advantages of reducing environmental pollution, improving production efficiency and ensuring construction quality. Over the past 15 years, leading international architectural journals have published a number of articles on prefabricated construction management, off-site construction management, and industrial construction. This paper studies the latest research trends in this field, and qualitatively analyzes 80 research papers published in 10 major journals from 2005 to 2020 from the aspects of research content, research methods, and core research fields (now available online). This paper USES computer big data to analyze the literature. Analysis shows that the impact of the IRB on the construction industry as a whole is increasing.

In the 1970s and 1980s, the study of mental resilience emerged in the field of psychology in the United States and quickly became a hot topic in the field of international psychology. The field studies the psychological adaptation and development of children, adolescents (and later adults) in adversity. The extensive research on the psychological resilience of college students can enlighten the complexity of their psychological development. Throughout life, people inevitably encounter setbacks and adversities, and are under pressure from all sides at all times. With the development of society and the intensification of competition, college students are facing more and more pressure. Some college students can adapt to pressure and grow up healthily, while others cannot adapt to adversity, which leads to psychological problems. In the era of computer big data, relevant experience shows that physical exercise has certain help in forming mental resilience and positive emotions. Therefore, this paper analyzes the relationship between physical exercise, mental resilience and positive emotions of college students by using computer technology and mathematical model, so as to provide help for college students to form healthy psychology.

The art design style of computer modeling is the hot spot of China's art design in recent years. After entering the 21st century, the concept of art design has been constantly developed and innovated, and a series of designs such as Java and dynamic titles are all the rage. Based on computer modeling art design style of writing with different point of view of reality, tends to be the symbol, the transition of the style, let people can more easily and work more comfortable and more willing to learn the meaning, this article through to the computer modelling of the historical development of the art design style analysis, combined with the graphic sustainable theory to delve into the UI design for readers reference.

Attributing to multiple advantages such as lightweight and excellent impact resistance, plain-woven composite self-healing U-shaped canal material has been extensively applied in various fields. As it is used as the main bearing part, the existence of cracks can significantly reduce the service performance and safety factor of the material. During the usage, the internal cracks continue to expand and accelerate the material failure. In this paper, the features of four-step weaving technology are analyzed, and the yarn trajectory is simulated by the relevant computer software based on the simulation characteristics. The computer graphics technology is used to present the 3D weaving structure. The design and implementation process of composite self-healing U-shaped canal material based on the 3D modeling technology is simulated by the computer. Based on the relationship of the weaving process parameters, simulation parameters are set in the computer software to facilitate the generation of 3D weaving models for various sizes and simulation corners. This computer simulation method allows the model to approach the real structure of woven fabric infinitely, which has implemented the characterization for the damage evolution of plain woven glass fiber composite self-healing U-shaped canal material in the in-situ shear test. The geometric information of the yarn section is obtained by scanning the image, including the long and short axis in the elliptical section of the yarn and the yarn path. Spatial positioning is performed on the defects to obtain the material defect rate by statistical analysis of its volume fraction. Statistics on the geometric parameters of the yarn are performed to establish a finite element model. Given the impact of hole defects, the finite element model with defects is established. The corresponding numerical simulation of the shear test is conducted, and the impact of defects on material failure is analyzed and revealed from the aspects of modulus, strength and damage.

The rapid development of the educational information age has brought changes and challenges to the field of English education. The development of computer information technology has led to the reform of teaching methods. Under the guidance of constructivism theory, around the teaching concept of "teachers' leading role and students as the main body, and the conductor combination"^[1]. In this paper, based on English majors offered English course as an example, analyzed the computer information technology platform based on hybrid English teaching, in order to provide useful reference for the teaching reform of basic courses for English majors.

In the machining process of mechanical mold, the machining accuracy must be guaranteed, only in this way can the mechanical mold's performance be guaranteed. When we process and produce mechanical moulds, we need to fully realize the importance of precision. The combination with computer aided technology can effectively control its accuracy. In the process of machining and production, there are many factors that may cause accuracy problems. In this paper, the machining precision control of the mechanical mold was studied by computer aided technology based on the machining and production process characteristics of the mechanical mold.

Well logging is a method of measuring earth parameters using a variety of geophysical properties. In oil fields, it is often referred to as field geophysical exploration, petroleum and mineral geophysical or geophysical logging. The use of logging technology can reduce the workload of drilling and coring, improve the exploration speed and reduce the cost of exploration, so it is widely used in oilfield development activities. This paper takes Daqing oilfield, the largest oilfield in China since 1960s, located in the middle of songliao plain, as an example, and analyzes the application of logging method based on computer technology in oilfield development.

The construction of the image of city is not a spontaneous process, it has strong relationship with media under the computer operation. This study collected the news reports of Xiangyang, Yichang and Jingzhou in the Hubei Daily in 2019, and conducted an in-depth analysis of the media images of these three cities by the computer calculation. It is found that Xiangyang, Yichang and Jingzhou were represented into different kinds of image, and especially, there were significant differences in the theme of reports. Based on the results, it is advisable for each city to create unique resources and to present personalized images. Meanwhile, it is also necessary to take use of the computer operation, so that a much more scientific, systematic and reasonable image project of cities could be established.

With the advent of the Internet era, the development of communication technology and virtual reality technology, and the increasing maturity of computer network technology, the Internet technology museum has gradually replaced the traditional museum and become a trend. With the rapid development of mobile terminal intelligence, the way of information transmission is no longer limited. The application of Internet technology to digital museums can change the fixed exhibition and single visiting mode, obtain different experience and interactive experience, and open up a new field for the development of digital museums.

The BIM is short for "building information model", first originated in America in the 1970 s. After the completion of the three-dimensional geological modelling of the project site, the section interception tool provided by the modelling software can be used to obtain the engineering geological map of any section. Different from the two-dimensional section results provided by the geotechnical engineering survey, the section obtained by the software is projected vertically with the information of all geotechnical layers in a rectangular box on the surface.

The teaching design ability of physical education specialty based on the teaching concept of computer media OBE can effectively carry out the teaching, improve the teaching quality and realize the optimization of physical education teaching. The teaching design of physical education major adopts the concept of OBE and computer media situational teaching video model, which requires the diversification of teaching skills training and the establishment of a comprehensive training system. This paper firstly analyzes the teaching objectives and teaching design of physical education major in China, and then studies the influence of computer media on the teaching design ability of students majoring in physical education. Finally, it gives the strategies to improve the teaching design ability of physical education major by integrating the conceptual model and scene teaching video of OBE.

With the rapid development of the Internet + era, the quantity and quality of China's tourism human resources have increased rapidly, making positive contributions to the development of the tourism industry. But generally speaking, there is still a big gap between the quality and structure of human resources and the requirements of the rapid development of tourism industry, which affects and restricts the further development of China's tourism industry to some extent. Tourism human resources is an important guarantee for the rapid development of tourism. The quality and structure of China's tourism human resources restrict the rapid development of China's tourism to a great extent.

Based on the demand of fine-grained image classification and recognition technology of red tide algae, the Faster R-CNN algorithm in the deep learning algorithm is studied. At the same time, according to the characteristics of subtle inter-class difference and intra-class difference between red tide algae, FPN algorithm was studied in the detection algorithm by computer aided technology.. On this basis, TensorFlow is used to carry out experimental simulation, and the results of classification and recognition of fine-grained image of tidal algae based on different scale feature information are compared. The experimental results show that the Faster R-CNN algorithm performs generally in the classification and recognition of fine-grained image of tidal algae, but the detection results are significantly improved by combining the FPN algorithm.

Badminton is a sport carried out relatively well in the sports, recreation, and fitness programs in China. There are many basic batting techniques in badminton. Among them, the technical movements feature the short flight path, straight arc, short time, and fast fall, which are the techniques required for the attack players. Throughout the development history of badminton sports skills and tactics, in the singles and doubles badminton competitions, powerful kill movement techniques, especially back-field movement techniques, are essential means of scoring in the match. In this paper, the computer-based Ariel system and myoelectric telemetry system are used to analyze two technical movements of male players in the badminton team, that is, near-net forehand smash and far-net forehand smash, to lay a foundation for comprehensive quantitative analysis of badminton technical movements while avoiding sports injuries due to irregular movements at the same time. The potential commonalities between different athletes' different technical movements are explored to lay a theoretical foundation for further improving the badminton technical movements.

Due to the relatively long time interval between the completion of mining and the flooding of bottom water, the identification of oil-water layer is difficult due to the same nature of formation crude oil, so the interpretation of oil layer is very challenging. In this paper, the boundary oil, injection oil and bottom oil propellants of each oil layer in the study area, as well as the oil source and inflow direction of the oil layer, are summarized by using computer aided technology according to the geological characteristics of the block and the characteristics of permeability and oil recovery. The resistivity of water injection, oil flooding at the side and the bottom decreased obviously. Secondly, the typical reservoir of the new well is determined by comparing the logging data of the same layer between the old well and the new well and combining with the production dynamic test results of the adjacent old well. The logging response characteristics of the reservoir are analyzed, and the sensitive parameters such as deep lateral resistivity, shallow lateral resistivity, deep lateral resistivity amplitude difference, deep lateral resistivity, flush resistivity amplitude difference are optimized.

In this era of rapid development of information, people's way of living is closely related to the network, the Internet has affected all areas of human society, and the survival and development of people have a broad impact. In the interface design of Internet products, color often has the advantage of taking the lead over shape, and the color of the interface will leave the first impression on people. The difference of color can give a person disparate feeling and impression, the interface that gives priority to tonal with blue or green can give a person a kind of cool and refreshing and quiet or vast and distant feeling.

The model is an important factor that affects the rendering quality. In the process of model construction, the Boolean operation method is usually used. This operation method will consume a lot of computer resources. Improving this operation mode can not only improve the accuracy of the model, but also simplify Model to achieve fast rendering. Not only can the model be simplified, but there will be no discrepancies visually. If the number of sides of the model cannot be reduced, the angle of the camera should be adjusted and the rendering efficiency can be effectively improved on the basis of fully expressing the design content. When rendering rural landscapes, by adjusting the angle, only the nearby objects can be adjusted, the rendering effect can also be achieved and the rendering efficiency is improved.

Oil is a kind of non-renewable energy. Our demand for oil is on the increase. With the continuous exploitation of oil resources, China's oil reserves gradually decrease. As a result, China imports a lot of crude oil every year. With the exploitation of oil, China's large oil fields will gradually dry up, which requires China to develop medium and low permeability reservoirs. However, there are many difficulties in the development of medium and low permeability reservoirs, such as dense matrix, complex fracture system and low permeability, which will lead to low recovery. With the development of science and technology and the combination of computer technology, eor technology has gradually matured and can be used in low and medium permeability reservoirs. In this paper, the technology of eor is analyzed firstly. Then, according to the characteristics of low and medium permeability reservoirs shown by the computer, the fracturing, percolation, enhanced oil recovery technology and microbial oil displacement technology are analyzed to better develop low and medium permeability reservoirs.

As an important part of culture and entertainment, animation is also a form of artistic expression with entertainment and educational functions. The application of computer 3D technology makes the animation more vivid and expressive. This paper USES computer 3D technology to analyze the entertainment and educational functions of American and Japanese animation, as well as the educational significance of American and Japanese animation. This paper points out that computer 3D technology not only creates new cultural connotation of American and Japanese animation content, but also is one of the important factors of its educational significance.

In order to meet the needs of capital city construction and development, this paper studies the problems of building energy conservation from the aspects of computer intelligent control, green energy-saving building and integrated system of new energy utilization. Using computer intelligence to establish a comprehensive utilization of renewable energy demonstration system, namely the heat pump technology, building CCHP and total heat exchange ventilation system, set up a computer intelligent monitoring system, monitoring and control of building energy consumption, indoor heat and humidity environment, air quality and energy system, optimize the system operation^[1].

With the decrease of oil reserves, the difficulty of oil reservoir exploitation is increasing day by day. In this case, the development of oil reservoir research is becoming more and more important. There are more complicated continental reservoirs in Chinese oilfields, which makes the development of oilfields more difficult. The traditional way of describing oilfields can no longer accurately describe the complex petroleum geological environment. Therefore, a more efficient and detailed description of modern reservoirs is needed. Methods, using computer modeling to analyze horizontal wells and quantitatively study the reservoir conditions.

In this study, inspired by the limit streamlines on the compressor casing. Combined with computer data technology to reduce the efficiency loss caused by the increase of casing processing.

Autonomous learning is an important part of basic education for all. At the same time, with the continuous development of computer network technology, it provides a new model for autonomous learning to some extent and improves the efficiency of learning. This paper mainly studies the needs of residents' autonomous learning under the computer network technology environment and how to combine computer technology for efficient autonomous learning. Through the analysis of this paper, for the students to create a good learning atmosphere, provide reliable learning guidance, and how to implement the "happy learning", "learn well", "learned" as the guiding goal of the educational training model to provide reference.

Computer modeling is a favorite tool for building engineers. As a new productive force, it lays a solid foundation for the future development of model design. It can use computer 3D technology to design and make physical models of buildings, simulating the effects of digital space design that cannot be achieved by hand. Generally speaking, the application of computer three - dimensional model design in structural design of civil engineering is very outstanding. Based on the summary of the calculation model design, this paper analyzes the safety and economy of the structure design of civil engineering.

Objective: To explore the changes of college students' lifelong sports consciousness before and after community interaction by using computer technology. Method: Research object and content. Five hundred students from three colleges and universities in Fujian Province were selected as the objects of investigation. 512 questionnaires were sent out and 500 were collected. T-check and Pearson check use computer technology to comprehensively analyze the collected data. Result: With the development of interactive sports activities between colleges and communities, the sports mode and consumption structure of college students have undergone profound changes. Conclusion: Community interaction is of positive significance to the cultivation of College Students' lifelong sports consciousness.

The goal of oil and gas field development is to maximize the benefits of exploitation work. In some large oilfields entering the mid-to-late development stage, to maximize the input-output ratio of oilfield exploitation, in oilfield development work, you will receive Due to the influence of many interference factors, in the field of oilfield exploitation, it is necessary to reduce the economic cost of oil and gas field exploitation as much as possible and continuously improve the economic benefits of oilfield mining units. In the mid-to-late production of oil and gas fields, the use of big data to establish a reasonable and scientific production plan for oil fields and an effective decision support system provide an important guarantee for the development and production of oil and gas fields in the middle and late stages. Through the use of effective production-increasing technology and production decision-making, comprehensively consider some oilfield mining areas and newly-added resource mining areas, comprehensively optimize and set up the development of oilfield resources in the middle and late stages and use big data technology to develop oilfields. Among them, the resource advantages are effectively transformed into economic advantages, in order to provide a good work plan for the middle and late stages of oilfield development.

Football is not only an important way to enhance international communication and the physical quality of the whole people, but also to enhance the feelings between people, strengthen unity, and create a positive fighting spirit. The article first briefly describes the current situation of domestic football development, then points out the great influence of football in world politics, economy, culture and its incredible commercial value, and combines the development of big data to train and evaluate the tactical play and consciousness of the youth training team. And get the positive effect of big data on the training effect.

The continuous progress of the information age has changed our way of life and work. In the era of big data statistics, the financial model of enterprises has also changed a lot. The content of financial work has an obvious trend of expansion and extension. At the same time, people's demand for information is increasing. People have higher and higher requirements for financial information. Generally speaking, the improvement of big data automation level urges the financial department to carefully observe the business work. In this case, the management department should apply the thinking mode of big data to build the financial management information system. Strive to achieve the transformation and development of enterprise financial management.

The distortion of accounting information is an international problem. It is also a historical legacy. It is an important problem that all countries in the world need to study and solve at present. As an accountant, we should pay attention to this problem and try our best to solve it. According to the reason of accounting information distortion, this paper puts forward the method of accounting information distortion by three parts. It divides the distortion of accounting information into regular distortion, illegal distortion and behavioral distortion. This paper analyzes the different reasons of three ways of information distortion from the perspectives of accounting domain order, information asymmetry and human finiteness. This paper discusses the relationship among the three ways of distortion and puts forward the corresponding countermeasures.

The background and foundation of applying big data analysis to mobile communication network planning is precisely the current rapid growth of network data and the update and development of big data technology. With the help of big data analysis tools, based on the current communication network, planning goals, it can be more comprehensive Analyze and explore the value perception and behavior trajectory of network users, etc., so as to determine the market demand trend, formulate a more scientific and reasonable planning program. In short, the purpose of the application of big data in communication network, planning is to promote the healthy development of the network. The cellular wireless positioning algorithm that realizes TDOA positioning technology by using big data is a relatively important technology, which is studied in this paper.

For Chinese language information processing system, it is a very typical 3C system, which integrates computer and communication into one. Connect smart devices through the application of various technologies, mainly including network transmission technology, audio and video technology, information processing technology, etc. and use a highly efficient management system to uniformly manage and control all devices. According to the actual situation of human communication, the most direct way is language communication. Dedicated voice recognition chips are mainly used to control and control smart devices in traditional smart home systems. The currently recognized voice recognition products usually rely on the Internet as an important means to improve their efficiency.

Natural language processing is an emerging discipline and a rapidly developing discipline. The development of natural language processing technology is full of opportunities and challenges, difficulties and frustrations. The establishment of various models and the proposal of various methods have brought vitality to natural language processing; although current systems such as machine translation and speech recognition are still in The immature stage, but the increasingly widespread application of natural language processing, proves its important position in the computer field and even the entire scientific and technological field. By using the marked verb matching Lambek check algorithm, I believe that in the near future, logical sentence writing and processing will have a brighter future.

According to a large number of graduate employment questionnaire survey, researchers found that today's College Students' oral expression ability has been far from meeting the needs of society. This situation has contributed to the employment difficulties of college students. Therefore, how to effectively cultivate the oral communication ability of college students has become a concern of various universities. The improvement of College Students' oral ability will improve their employment rate. Based on the theoretical knowledge of spoken language learning, a computer-aided language learning system is proposed. This paper analyzes the advantages of CAI in language teaching. It has been proved that its application can effectively cultivate the ability of using spoken English of college students.

This paper plans to comprehensively evaluate the post capacity of college English teachers by combining the computer big data technology with the equivalent multi-level weighted index method. Through the analysis, this paper constructs the post competency index of teachers in colleges and universities, and integrates the teaching achievements, scientific research achievements, attendance results and the subjective evaluation results of students and colleagues, so as to realize the comprehensive evaluation of teachers. Teacher comprehensive working ability price. This index applies not only to college English teachers, but also to the evaluation of other college teachers.

In recent years, the automobile and train industry in our country has made amazing progress both in quantity and in industry technology and technology, thus giving birth to the tireless pursuit of on-board antenna. As the Wi-Fi/5G network becomes more popular, we enjoy a wider coverage, faster speed, more smooth experience of the network, car-mounted antennas can also be changed to bring new surprises. In this paper, the dual-frequency vehicle antenna is designed from the perspective of appearance, shape, size and simulation by using computer technology, and the feasibility conclusion is drawn.

China Meteorological Administration-Massive Open Online Course, CMA-MOOC is an industry-oriented, international-oriented and public-oriented networked learning system of China Meteorological Distance Education Platform, which is hosted by the China Meteorological Administration Training Center of China Meteorological Administration. The CMATC provides technical support throughout the long-range international training on national observation equipment support along the "Belt and Road" and the demonstration training on nowcasting techniques for severe convective weather in ASEAN countries, successful completion of the first online cross-border training for meteorological distance education. The World Meteorological Organization, WMO Education and Training Office, appreciates this new initiative and shares within WMO innovative practices in international training for cadre colleges.

A computer network is an interactive system that connects networks around the world. It is inevitable that when users go online, they will contact many other users. The interactive nature of this connection determines the insecurity of information browsing. Therefore, a great risk will inevitably occur during the normal use of the computer network. The computer network is open to users all over the world. During the user's online process, the computer will face various threats. Hackers and Trojan viruses will attack the computer when the user browses the information to steal the user's personal information. This feature of the computer's broadness of use enhances the threats in the use of the computer. Therefore, we must strengthen safety management.

In cognitive wireless networks, the collusion attack of malicious users has brought great challenges to the safety perception of the spectrum. Based on the analysis of the characteristics of existing attacks, a hypothetical analysis of possible attack behaviors, and the effective combination of blockchain technology and existing mechanisms are introduced, and a new secure spectrum sensing method based on blockchain technology is proposed. This method can treat the user's historical interaction as a public ledger, and effectively monitor the user's collusion attacks.

With the continuous development of network information technology, people in our country use mobile phones, computers and other communication equipment will generate a lot of data information, companies want to use this information, they must manage this information. The most commonly used information management technology is computer information management technology, which can not only learn to store information effectively but also analyze information in many ways. Through analysis of the characteristics and development status of computer information management technology, we put forward plans to continuously improve the security of computer information management technology in the application of computer information management technology in information management.

Objective: To explore how to combine mind mapping with computer technology in computer teaching. Methods: According to the natural division method, 39 students in the first class used the interactive teaching method of mind map, 36 students in the second class used the interactive teaching method of brainstorming to compare the passing rate of the final examination between the two classes. Results: The pass rate of class one was significantly higher than that of class two, especially the pass rate of female students in class one was 52.4% higher than that of class two. Conclusion: Mind mapping is more suitable for computer teaching in colleges and universities. We should combine mind mapping with computer technology to improve teaching quality.

Wafer level packaging technology, as an advanced packaging technology with high maturity and wide application, has been widely used in portable products such as mobile communication. This paper mainly introduces two kinds of wafer level chip scale package forms, fan in and fan out, introduces the whole process of fan-out wafer level package and finally looks into the future development trend of wafer level chip scale package technology.

Under the background of economic globalization, social informatization and cultural diversity, ideological and political education in colleges and universities is facing new challenges. Ideological and political education in colleges and universities is not only the work of ideological and political teachers, but also the responsibility and obligation of all teachers and workers. The development of computer provides a breakthrough for its development. As a national college English course with many class hours, long class hours, wide coverage, strong faculty and high social concern, it should also shoulder the important task of ideological and political education in colleges and universities. The use of computer technology to carry out relevant data on molecules. On the basis of analyzing the feasibility of extending college English to ideological and political education, this paper puts forward the ideas, contents, methods and approaches of college English course innovation, so as to achieve the goal of curriculum coordination, whole-course education and comprehensive education.

With the progress and development of the society, the society needs more computer network talents to adapt to the development of the society. However, due to the disadvantages of various aspects of development, the network computer talents trained by colleges and universities cannot meet the market demand, resulting in the employment difficulties of some students. The main reason is that many colleges and universities cannot meet the needs of society. At present, great changes have taken place in the general education model and discipline model of vocational education in China, and new attempts have been made to combine work with study, production with teaching in practice. The existing experience shows that school-enterprise cooperation is the only way for the reform and development of secondary vocational schools. However, with the rapid development of the social situation, the original simple school-enterprise cooperation model has shown its limitations. How to continue to give play to the great role of school-enterprise cooperation and deepen school-enterprise cooperation is the choice of many higher vocational colleges in China, and shows certain advantages. At present, great changes have taken place in the general education model and discipline model of vocational education in China, and new attempts have been made to combine work with study, production with teaching in practice. The existing experience shows that school-enterprise cooperation is the only way for the reform and development of secondary vocational schools. However, with the rapid development of the social situation, the original simple school-enterprise cooperation model has shown its limitations. How to continue to give play to the great role of school-enterprise cooperation and deepen school-enterprise cooperation is the choice of many higher vocational colleges in China, and shows certain advantages^[1].

The goal of China's economic system reform is to establish a socialist market economic system and the price mechanism is the core of the market mechanism. Only by establishing a perfect price formation mechanism, so that prices can truly reflect the market supply and demand, resource scarcity and environmental damage costs and give full play to the basic role of the market mechanism in resource allocation, can we improve the efficiency of economic operation and promote the adjustment of economic structure. Therefore, it is of positive significance to study the relationship between the national economy and energy price fluctuations by applying CGE model and computer simulation technology.

The utilization of farmland resources has an important impact on the local ecological environment. At the same time, with the development and update of computer technology, it also provides us with more technical means in the application of agricultural land use and ecological environment construction. This paper studies the changes of land resources in the construction of new urban areas, analyzes the changes of the ecological environment in new urban areas, and puts forward the measures for the application of agricultural land use combined with computer technology and the construction of ecological environment. It is concluded that the ecological environment of the new district of a city is greatly affected by the change of land use pattern, and shows positive and negative effects in different regions.

Objective: To explore the toxicological effect of heavy metal lead on testicular interstitial cells by detecting the gene expression levels of enzymes related to injury healing, to provide an experimental basis for revealing the toxicological mechanism of heavy metal-induced male sexual dysfunction. Methods: The r2c cell line of testicular interstitial cell was exposed to a serum-free culture environment containing heavy metal lead. The activity of the cells was determined at 1, 3, 6, 12, and 24 h. The supernatant of the cells was collected to detec the changes in the injury healing by computer-aided technology. The RT-RCR method was used to observe the differences in the gene expressions of injury healing related enzymes. Results: CCK-8 assay showed that the vicapacity of r2c cells was not significantly reduced after they were exposed to 100 μmol/L heavy metal lead for 12 and 24 h (P > 0.05). Computer-aided radioimmunoassay was used to detect the changes in the progesterone, and the results showed that the synthesis of progesterone was significantly reduced at 12 and 24 h (P < 0.05). After the cells were exposed to the medium containing lead, the expressions of the steroid hormone synthetase gene returned to the normal level after 12 and 24 h. However, the expressions of StAR and P450scc genes decreased significantly after exposure to lead for 3 h (P < 0.05), and the expressions of the StAR gene decreased even more dramatically after exposure to lead for 6 h (P < 0.01). Conclusions: Heavy metal lead can inhibit the synthesis of progesterone in r2c cells mainly by down-regulating the gene expression levels of cholesterol transporter StAR and rate-limiting enzyme P450scc in the injury healing pathway.

With the continuous prosperity and progress of economic globalization, the continuous updating of computer technology makes our society enter the era of information technology. In the context of information technology, the management of information in various industries depends on the use of computer technology. In the process of accounting and financial management, the use of transformation and transformation helps financial managers to lay a good mathematical foundation. This kind of thought can help them to carry on the audit work more easily. In addition, the research on the algorithm of fractional differential equation can obtain high-precision numerical solution with fewer practical nodes. Its use can also improve the efficiency of accounting and financial management.

With the advent of the new socialist era, China's manufacturing industry is facing the challenge of transformation and upgrading under the new economic background. However, the development of computers has provided a huge impetus to China's manufacturing industry. Facing the global market competition, the manufacturing industry, as a stabilizing force of the real economy, should not only develop vigorously with the support of national policies, but also rely on the development of computer aided technology. Cost is closely related to the benefits of an enterprise^[1]. Therefore, scientific and reasonable cost control and management may directly affect the economic benefits of an enterprise and further improve its core competitiveness. The purpose of this paper is to realize cost control more effectively under the promotion of computer aided technology.

The construction of college students' entrepreneurship and innovation model, through the construction of school-enterprise cooperation platform and other forms, has important practical significance for promoting college students' employment, alleviating the pressure of social employment, and improving the enthusiasm and success rate of college students' entrepreneurship and innovation. This paper first analyzes the mechanism of college students' entrepreneurship and innovation based on computer multidimensional dynamic innovation model, then studies the importance of influencing factors of college students' entrepreneurship and innovation, and finally gives the school enterprise cooperation platform construction strategy of entrepreneurship and innovation based on computer multidimensional dynamic innovation model.

With the great progress of road construction ability and construction technology, new materials are constantly developed, the choice of road surface materials is more diversified, and the pavement structure is more reasonable and the performance is more optimized, which brings great convenience for the first paving and later maintenance of the road. In this paper, by studying computer modeling and analysis technology, the polypropylene fiber concrete pavement in the road is analyzed and studied, and the experiment is designed in detail to describe the current actual situation, and the conclusion is drawn for study and research reference.

Particle swarm algorithm applies to the field of computer neural networks a lot. In this paper, the medical image is used as an example to realize the modeling process based on the particle swarm algorithm. For the modeling and simulation analysis of medical images, the geometric model accuracy and physical model accuracy need to be solved. The mobile cube (MC) algorithm is used for surface reconstruction. At the same time, the quadratic error measurement (QEM) method is used to reduce and smooth the triangular patch. The Delaunay method is used to deduce the volume mesh model based on the surface mesh. and finally, the corresponding physical model is selected according to the target organization to use the finite element (FEM) method for analysis, and uses OpenGL to display the cloud chart of the equivalent stress. The analysis results show that the function and metabolism of human tissues and organs can be more accurately understood through the reconstruction of SPECT medical images.

This article briefly introduces the completion structure and key support technologies of drilling, conventional horizontal Wells, lateral horizontal Wells and branch horizontal Wells under computer data evaluation. The problems existing in the process of well completion in complex structure Wells and the development direction in the future are put forward.

With the rapid development of the national economy, China has completed the preliminary well-off society. However, with the development of economy, China's water ecological resources have suffered a lot of losses. Therefore, water ecological restoration technology has become an important technology in river management, especially when combined with computer technology, it can effectively repair water bodies and improve the quality of water resources. Through the natural purification system, we can gradually purify the water quality, which will play a role in the integration of human and nature. Firstly, this paper analyzes the commonly used technology of water ecological restoration based on computer. Then, the main problems of water environment and water ecology are put forward. Finally, some suggestions are put forward.

To overcome the limitations of traditional methods for detecting gas leakage for SF6 equipment, such as staff safety being endangered and poor reliability of power supply, this paper introduces the laser imaging technology for gas live detection of SF6 equipment. Through discussing an example of SF6 gas leakage detection, it is shown that the SF6 gas leakage detection method based on computer aided laser imaging technology can be long-distance live detection, and can determine the SF6 gas leakage point safely, quickly and efficiently^[1]. It guarantees the safety of personnel, improves the efficiency of maintenance, reduces the time of power failure, and improves the reliability of power supply.

With the in-depth development of enterprise information construction, enterprises accumulate more and more business data, at the same time, the constantly changing market environment and fierce competition, have prompted managers to more in-depth information desire. An intelligent financial decision support system is a specific application in the financial field after the integration of traditional decision support system and expert system in artificial intelligence. The application of an intelligent financial decision support system can help enterprises to classify, sort, process and analyze data, and transform historical data that cannot be further used into knowledge base information for senior decision makers. However, in most of the existing researches on an intelligent financial decision support system, the application of data mining technology is not specific enough, and only gives the construction of a model library and knowledge base in a general way. At the same time, it is seldom combined with the actual situation of enterprises, so the operability is not strong.

With the non-destructive, cheap, and real-time advantages, ultrasound diagnosis is one of the indispensable imaging diagnostic techniques in modern clinical medicine. The coherent nature of ultrasound imaging results in a low signal-to-noise ratio of ultrasound images, which adversely affects quantitative analysis and diagnosis. In practical applications, ultrasound diagnosis often has disadvantages such as the varying accuracy dependent on the doctor's experience, the image feature extraction and analysis methods lagging behind the development of imaging technology, etc. Guided by the concept of "Mix of virtual and actual reality, multivariate cooperation", the quality of experiment teaching in obstetrics and gynecology should be improved to achieve the experimental teaching goal of obstetrics and gynecology. In this paper, the necessity and characteristics of medical virtual simulation experiments are first analyzed. Subsequently, the construction of the medical virtual simulation experiment is expounded. Finally, how to carry out the experimental teaching of gynecology and obstetrics is summarized.

The rapid development of computer information technology is promoting the progress of all aspects of society, sports and physical education are not outside, but is using computer information technology to gradually innovate and walk with the times. In this paper, the author expounds the demand of the development of physical education for the application of computer technology and the importance of the establishment of the innovation system of physical education development to society, education, health and individual.

Cloud computing platforms are the product of modern information technology (IT) development and one of the hottest research directions in the big data era. In this paper, the functions and principles of a multimodal integrated communication notification system that combines the communication methods such as e-mail, mobile phone text messages and voice calls are expounded, focusing on the discussion of JMail components, reliable mass texting, short message encoding/decoding, and other core technologies in the cloud-based system design. How to use JMail object, ADO, and multi-threading technologies to implement complex tasks such as information mass texting, fast receiving, processing, and recovery requires further study. Experiments suggest that the proposed method can solve the difficulties in designing information mass texting and reliability in design effectively.

With the progress of computer technology and the prosperity of information age, the society has higher and higher requirements for English learners. Due to the limitation of English standard, many university students' employment problems become more serious. This situation poses a greater challenge to university English technique. What we should do to improve the efficiency of university students' English instruction has become a major concern in academia. At present, the establishment of College English network online technique platform has improved the passion of university students to learn English. Researchers found that online technique platform can help students improve their English level. This paper carefully studies the establishment of College English online teaching terrace under the background of computer-aided system, and finally comes to a conclusion.

In the power system, experiment is one of the most critical components. In the past experimental work, because of the inability to master the equipment, limited hands-on ability, lack of experimental steps and experimental ideas, many experiments could not be successfully completed, electronic and electrical experiments are the key to relevant personnel to improve their practical ability way. If it is a mistake in the experiment, it will cause damage to the equipment and it will also endanger the safety of the experimenters. Therefore, the use of simulation technology in experiments is of great significance. Therefore, it is of practical significance to analyze the electronic and electrical experiment simulation technology.

"Microlecture technology" is a new education model rising at home and abroad in recent years, which is effective and worth learning and promoting. In this paper, the microlecture is introduced to college ideological and political education to explore the feasibility of the teaching model design for college ideological and political education based on microlecture. The design principles are established based on the objective law of teaching and the features of ideological and political courses to establish a four-level experience model, an innovative and systematic teaching model based on the microlecture technology, thereby improving the effectiveness of college ideological and political teaching.

The ship's LNG power system is a key part to ensure the normal operation of the ship. Every key part of the ship will be commanded by the LNG power system. In the part that this article focuses on, the main components of the marine engine LNG power technology are the LNG power ignition system, electronic fuel injection system and idle speed control system. The working principle of marine engine LNG power technology first controls the commands issued by the control system through internal sensors, converts the commands into electrical signals through the command input device and transmits them to various electronic control units. Then the control unit processes the signals and finally the actuator Turn each command from the LNG power unit into a specific control operation for the ship. LNG power technology has a huge impact on the entire shipbuilding industry, improving the performance and kinetic energy of ship engines, reducing ship energy consumption, reducing exhaust gas emissions and reducing pollution. This article studies them.

Campus football is an important part of football reform in China, which undertakes the arduous task of promoting the all-round development of students and training football reserve talents. However, at present, there are few studies on the evaluation methods of the implementation effect of campus football in China, and the construction of a complete and scientific evaluation system of the implementation effect of campus football is not perfect, which seriously restricts the sustainable and healthy development of campus football. Therefore, this paper analyses the problems existing in the development of campus football, and discusses the possibility of applying the computer simulation model to the evaluation method of the implementation effect of campus football. On this basis, this paper puts forward the basic principles and key evaluation indexes of the implementation effect evaluation method of campus football, and constructs the structural equation model of the evaluation method, which provides a solid theoretical support for the evaluation of the implementation effect of campus football and the high-quality development of campus football.

Experience shows that employability is very important in occupational activities, especially for manual jobs, such as automobile jobs. However, at present, there is a disconnection between the courses of automobile majors in some schools and the demand for vocational positions, which does little to improve students' employability. Therefore, based on the computer big data technology, this paper analyzes the existing curriculum standards of modern apprenticeship for automobile majors, and explores how to realize the three-way docking between the curriculum standards of modern apprenticeship for automobile majors and vocational posts under the condition of the Internet.

As an important facility to improve people's material living standards, the accuracy of its mapping work directly determines the quality of people's production and life at this stage. However, in the actual process of mapping, the application effect of remote sensing image technology has not been fully reflected, which is closely related to the content of the remote sensing technology application process. In order to control the difficulty of its auxiliary mapping work, relevant personnel should analyze the value effect of remote sensing technology in practice, so that the mapping work can fully realize the advantages of efficiency improvement and shortened working time brought by the use of remote sensing image technology. In this way, the application of remote sensing image technology can be fully exerted during the development of map mapping. This paper analyzes the extraction of multi-feature high-resolution remote sensing roads.

In the past 30 years, the rapid development of computers, and derived many high-end technology, in a variety of production hot big data is one of them. Tobacco companies in the 21st century in the endless era of anti-smoking policies stand out, must take action, both with the times, but also close to the status quo of their enterprises. Learning to use the advanced quality management methods used in cigarette production at home and abroad can not only improve the economic benefits of enterprises, but also meet the social benefits, and improve the operation efficiency of enterprises while ensuring the quality of products. Based on the difficulties faced by cigarette factories and the characteristics of the industry, the author expounds the importance MES the new mode of computerized production control under big data to tobacco enterprises in order to improve the quality management of tobacco enterprises.

In the recent years, botnet has become a serious threat to network security. As the result, the botnet detection solution is becoming an important topic for network security. DNS request is usually the first step to contact the C&C server of the bots controlled by the bot master and the detection of the DNS request domains is an effective way in detecting the bots. However, most botnets based on DNS protocol adopt Domain Generation Algorithm (DGA), which can change the domain randomly to hide themselves. Therefore, the traditional signature-based approach is rendered ineffective. Compared with the conventional ways of detection, the detection based on machine learning can obtain better detection result. In this work, we propose a botnet detection architecture based on Artificial Neural Network. We implement and evaluate the practicability of this solution with real datasets.

In this study, researchers use quantitative variable analysis methods to describe the decomposition process of desk design by establishing desk design models. A series of purposeful and conditional processes are used to decompose the features of the desk, so as to obtain the quantitative index of the overall favourability, and provide decision makers with the analysis results of the favourability of the desk design as a theoretical basis for decision-making.

The dynamic mechanism of tourism poverty alleviation involves multiple forces such as government entities, tourism enterprises, local residents, non-governmental organizations, etc., make full use of the resources that may be mobilized and play the role of the government's backbone in poverty alleviation in tourism. Stakeholders distribute benefits fairly and provide reasonable policy support. Strengthen the promotion of tourism scenic spots, build the image of national cultural tourism brands, expand the tourist source market, enhance the popularity of tourist scenic spots and use computer network technology to facilitate the development of tourism in its poor areas.

China, with its vast territory and long history, retains a large number of original dances. Russia is China's neighbor with a vast territory, and there are also a large number of original ecological dances preserved from history. If the original ecological dance elements of China and Russia can be combined with the modern elements, the dance effect will be brought out to the common. Therefore, this paper analyzes the original ecological dance elements and modern elements in China and Russia by using the computer big data technology, and studies how to better integrate the two.

The traditional network operation and maintenance technology is that the administrator passively waits for the network fault to report and then carries on the emergency treatment. This method lacks active mechanism and has many disadvantages in dealing with network communication failure. The low timeliness of operation and maintenance reduces the reliability of network communication operation and maintenance to a certain extent, so it is particularly urgent to explore the research of network communication operation and maintenance technology driven by big data. This article describes the difference between several different transmission modes in the field of optical fiber communication, and discusses the related factors that restrict the reliability and timeliness of the optical fiber transmission network. On this basis, this paper analyses the possibility of integration of big data technology and the optical fiber network, and lists the typical application of big data technology in the optical fiber network, which provides a new thinking direction for the performance monitoring and operation maintenance of the optical fiber network.

Improving students' participation and enthusiasm in class can help students better learn and master knowledge and improve teaching quality. Therefore, how to stimulate students' participation and enthusiasm in class has long been a hot issue in the field of education, especially in the process of English teaching. Thanks to the development of computer technology, we are provided with more research practices. By using computer technology to analyze the application of computer information technology in English teaching, this paper studies how to stimulate students' participation in class.

With the arrival of the information age, human resource management (e-HR) came into being, thus promoting the transformation of human resource management, from administrative affairs management to strategic human resource management, at the same time greatly improve the work efficiency and technical content of enterprise human resource management, the purpose is to achieve the innovation of enterprise management concept. The emergence of human resource management (e-HR) as a new human resource management mode is conducive to the improvement and reform of human resource management. With the rise of e-commerce and the development of computer networks, the competition between enterprises has gradually shifted from the tangible market to the virtual network world, and the corresponding enterprise management cannot stand still, but also into the track of information. Now more and more enterprises realize the importance of information management and implement the ERP system. Among all the resources that need to be integrated, human resources are undoubtedly the most important one and is becoming more and more important.

Venture capital guidance funds (VCGF) are a new way for the government to provide support to specific industries, especially for projects with funds far larger than the government's financial support capacity. The airline industry has a large capital footprint and a long return cycle. It will not be able to do so if it relies solely on government financing to invest. At present, the audit work of state-owned assets supervision and administration commission (sasac) and the ministry of finance on public-private cooperation projects is gradually strengthened, and VCGF has become an important development direction and realization way of the government's financial investment. Through the analytic hierarchy process, this paper constructs the investment model with computer simulation technology, makes a comprehensive analysis of the VCGF entering the aviation industry, and puts forward some strategic Suggestions.

At present, with the development of the economy and society, the demand for applied, compound and skilled talents is increasingly strong. In the higher education connotation development is advancing steadily, the "double first-class" construction is accelerating; the high-level university is accelerating the construction of today. This may be related to the lack of scientific orientation of the training program of art majors in universities in our province. Therefore, there is a distance between the cultivation program of art professionals in universities in our province and the development of social economy.

With the improvement of the national economic and the quality of people's life, art has gradually become an important part of people's life, and the importance of artistic talents has gradually become prominent. As an important place for the cultivation of artistic talents, the university plays a vital role in the cultivation and utilization of artistic talents. Under the background of the new era, the continuous advancement of the social information construction process has also accelerated the construction of art information platform in universities. This paper briefly describes the basic connotation and important significance of personalized development. And based on the actual situation, it puts forward some active strategies for the construction of college art talent information platform.

In the current era, the conventional architectural design process has been difficult to adapt to the high performance and high quality requirements of green building standards. By analyzing the necessity of applying 3d design in green building design, this paper studies the feasibility of applying 3d design in green building design from the aspects of the characteristics of green building and the advantages of 3d design. The application of computer 3d technology in green building design can better highlight the economy, rationality and maneuverability of computer 3d in building design.

With the progress and development of the times, network technology has gradually changed the way people live and learn. The continuous development of network technology has brought many new opportunities for China's education. Nowadays, network technology has been widely used in the college teaching process. However, the emergence of network technology, in addition to providing convenience and advantages for China's education, has also brought many problems to the mental health of college students. More and more college students are gradually experiencing mental health problems, which have a great impact on their own learning and growth. Therefore, only in-depth analysis of the impact of the mental health education of college students and continuous exploration of effective improvement measures and solutions through the analysis of big data, so as to better play the positive advantages of the network environment, can promote students' better learning and development.

The essence of optical fiber communication transmission technology is to use light as the carrier of information, and to achieve the purpose of information transmission through the optical fiber network. The communication mode based on optical fiber communication technology has been widely recognized in the field of industrial production and telecommunication transmission due to its good information transmission performance. However, with the expansion of the construction scale of optical fiber communication network and the improvement of user coverage, the disadvantages of the management and maintenance of the traditional optical fiber communication network are becoming more and more obvious. Therefore, this paper describes the characteristics of the optical fiber communication technology, and analyses the existing problems in the optical communication system and their causes. On this basis, this paper analyses the automatic operation and maintenance technology of optical fiber communication system. The analysis results in this paper provide some technical support for the deep integration of computer control technology and optical fiber communication automatic maintenance system.

With the development of science and technology, the computer has gradually replaced the pen and paper, and even is more important in many occasions. Also, people's dependence on the computer is deepening. While the importance of Bopomofo is in decline, Bopomofo teaching has been in a dangerous position. But actually, Bopomofo is the foundation of learning Chinese, the importance of language learning is self-evident. This paper mainly discusses the application of modern Chinese Bopomofo in computer recording technology.

The high development of computer technology has brought new changes to all walks of life, and has also provided a new breakthrough for the development of some industries, which not only improves the quality, but also improves the efficiency. Combined with the new computer algorithm rules, the emergence of new computer software, to the future of the archaeological industry is a bleak scene. In this paper, the feasibility of the rule algorithm of computer software is confirmed by the recognition of pottery type in southeast Heilongjiang province.

At present, with the increasingly prominent environmental problems, the automobile industry is gradually transforming to meet the increasingly stringent environmental requirements, and more and more new energy vehicles are put into use. This paper analysis the function of the new energy automobile test-bed: after combined with computer technology, research and development of multi-channel real-time dynamic data acquisition and analysis system. Finally the article discusses the combination of computer technology test measurement and control system design are verified. It provides a reference for measurement and control research of new energy automobile test-bed.

Multiple modern scientific and technological means are changing people's lives unconsciously. The emergence of computer technology and virtual reality (VR) technology has broken through the inherent traditional mode, endowing higher practical value to the environmental design scheme and its applications. In this paper, the VR technology and its practical application in environmental art design are expounded, and the far-reaching influence of VR technology on the actual design process is explored to provide a reference for broadening the environmental art design concept.

With the change of the public's aesthetic concept, people's requirements for the landscape and art of bridges are constantly improving. The connotation of bridge has developed from the original traffic architecture to the carrier of human landscape and historical culture. Therefore, integrating the concept of landscape art into bridge design is an important development direction in the field of bridge design. This paper expounds the connotation of landscape art in bridge design, and enumerates the typical application of the landscape art concept in bridge design. On this basis, this paper analyses the advantages of computer two-dimensional image technology for bridge landscape design, and discusses several aspects that should be improved in future bridge landscape design, which provides new thinking and reference for modern bridge design.

Objective: to explore the application and nursing strategy of flushing transfusion technique in orthopedic surgery by computer aided information analysis. Methods : 63 patients underwent orthopedic surgery with autologous blood collection device were treated with concentrated red blood cells. Preoperative nursing, intraoperative nursing, postoperative observation and follow-up were performed during the treatment. Results: the results of computer-aided data analysis and postoperative observation were as follows: the intraoperative blood transfusion volume of 63 patients was 500-1800 mL, with an average of 650 mL. All patients had no complications such as transfusion reaction, allergy, hemolysis and infection. Postoperative blood routine examination, coagulation function, electrolytes and urine routine were normal, and no patients needed blood transfusion. Conclusion: flushing autotransfusion is safe and effective in orthopedic surgery. Meticulous care is the key to a successful operation.

Objective: to investigate the application of continuous veno-venous hemodiafiltration (CVVHDF) in acute renal failure (ARF) after cardiac surgery. Methods: 30 patients with acute renal failure after cardiac surgery in xijing hospital from June 2011 to December 2013 were selected and treated with CVVHDF. The changes of Cr, BUN, electrolyte (K+, Na+, Cl-, etc.), HR, MAP, PaO2/FiO2, CVP were compared at 24 and 72 h before and after treatment using computer data analysis technology. Results: of the 30 patients, 26 survived and 4 died. Among them, the urine volume and renal function of the surviving patients returned to normal. Compared with before treatment, Cr, BUN, electrolyte (K+, Na+, Cl-, etc.) and HR were all significantly reduced, with statistically significant differences (P &lt;0.05). The oxygenation index (PaO2/FiO2) and average arterial pressure (MAP) were significantly increased, while the central venous pressure (CVP) was significantly reduced, with statistically significant differences (P &lt;0.05). Conclusion : CVVHDF is a safe and effective treatment and is worthy of clinical application.

The problem-oriented teaching approach (PTM) is a teaching approach that focuses on problem-oriented study and teaching through identification and solving of problems. Since the 1990s with teh development of computer, some medical schools and colleges in China and Southeast Asia have started to apply the problem-based teaching approach and computer technology gradually. Currently, it is still in the initial and exploratory stage in China, and the lecture-based learning (LBL) plays a leading role in medical teaching. PTM is distinctly different from the traditional LBL teaching model where the teachers give lectures and the students are spoon-fed in classes. It has broken through the traditional teaching confinement based on explanations by teachers, and students can take the initiative to analyze and solve problems pertinently in teaching.

The study of genetic diversity of Marine animals can not only reveal the origin and evolution history of species, but also provide theoretical basis for the conservation of genetic resources, breeding and genetic improvement of mariculture animals, as well as the restoration and stability of the entire Marine ecosystem. In this paper, the genetic diversity of important Marine animals (mainly including fishes, shrimps, crabs and shellfish) in China in the past ten years is reviewed. Their application in germplasm identification, system evolution, population genetic structure analysis, improvement of plant species, and other aspects this paper expounds the further promote Marine animals, genetic diversity research, speed up the cultivation of excellent germplasm resources, and promote the healthy development of Marine aquaculture, realize the reasonable development and sustainable utilization of Marine biological resources.

Aerobics is a body exercise combining gymnastics, dance and music. In aerobics training and competitions, music runs through. Based on multimedia information technology, this article introduces the software and hardware of aerobics computer music production, aerobics music arrangement steps and operation methods, and provides a certain reference for aerobics music production and research.

In the plastic injection molding process, the design of the cooling system plays a key role in the molding quality, molding cycle and production efficiency of the product. In this paper, computer technology is used to perform numerical simulation analysis on the injection mold of the automobile hubcaps. The mold temperature, the ejection temperature time of the plastic part and the distribution of the warpage of the plastic part are used as performance indicators to obtain the deficiencies of the cooling system design. Practice has proved that the cooling system optimization method is reliable and effective, and has certain reference value for the design of injection mold structure.

In the era of big data, with the rise of online media and the wide application of mobile terminals in education and teaching, more and more students rely too much on convenient mobile devices such as tablets and mobile phones to search for videos, audio and text that match their preferences. The network English translation learning resources, over time, lead to resistance to the traditional translation course teaching methods. Especially when teachers use traditional methods to present teaching resources that are duplicated with online resources in the classroom, students will be more resistant to traditional English translation teaching. In this era, the English professional translation course will usher in a new round of teaching reform, and then the author will carry out detailed analysis.

Soil mulching device is an important part of precision seeder, its structural parameters and performance will directly affect the uniformity of seed distribution and the thickness of soil, and ultimately affect crop yield. Using the EDEM tool based on the discrete element method, the optimized structure of the earth covering device was simulated and analyzed. The soil-slot test was used as a comparative test of the soil simulation experiment. The comparison between the results of the simulation test and the earth covering process test confirmed the applicability of the discrete element method to the earth covering process, which provides a new way for the research and design of the earth covering device and the earth covering process.

After more than three decades of reform and opening up, China's socialist market economy has been recognized worldwide. Not only has the productivity and people's living standards greatly improved, but it has also won a high international reputation in China. The global market economy model includes the US free market economy, the Japanese-style executive market economy, and the northern welfare market economy. Each of these market economic models has its own characteristics, but some basic characteristics are the same. How to deeply analyze and understand the essential characteristics and development trends of the economy is of great significance. Therefore, in order to explore the universal laws in the economic and financial system and promote economic development, this paper specifically investigates and analyzes China's economic market through statistical and modeling analysis methods. It is found through investigation that China's primary and secondary industries are developed. However, for the sustainable and effective economic development, the development of the third economy is inevitable. I hope that the research in this article can provide a certain reference for China's economic development.

Intelligent wheelchair based on BCI is a hot spot in recent research, and brain activity is actually a reflection of psychological activity. Completing the design of psychological test system is the key to BCI. ERP reflects the psychological activity of the brain, is a psychological test good tools such as cognitive neuroscience research. And there is psychological test system is mostly based on the traditional theory of external behavior inference, unable to objectively evaluate people's psychological activity. In the study of psychological tests and event related potential theory, the article improved FastICA algorithm, and applied to feature extraction of ERP. Eventually set up a complete set of psychological test system. Experiments show that the system can effectively detect the ERP feature extraction, and faster, better than other conventional psychological test system. So as to lay the foundation for the completion of the design of Intelligent wheelchair.

The climate of cold area is cold in winter (the average temperature of the coldest month is 0 ∼ - 10 °C and < - 10 °C), the outer envelope of the building bears the interference of low temperature, wind and snow, hot in summer, and the outer envelope of the building bears the interference of high temperature, solar radiation and rain. Therefore, the design of buildings should meet the requirements of winter heat preservation, cold prevention and antifreeze. At present, 95% of the new buildings built every year in China are still high energy consumption buildings. The heating energy consumption per unit building area is about three times of that in countries with similar climate. The building energy consumption in China accounts for nearly 30% of the national energy consumption. With the development of building technology, the improvement of people's awareness of energy and the attention of government departments, China should vigorously develop building energy saving, which is urgent. The demand of solar energy is increasing day by day, and the situation of energy utilization is tense. However, the large-scale use of conventional energy will have a negative impact on the environment. As a kind of renewable energy, solar energy is inexhaustible and will not increase the environmental load. It will become an important part of the future energy structure. In the building energy consumption, the energy consumption of domestic hot water and heating accounts for a considerable proportion. Using solar energy to meet the requirements of low-grade energy consumption, such as domestic hot water and heating, has great energy-saving benefits. Therefore, solar energy heating technology has been paid more and more attention. At the same time, with the development and maturity of computer technology, it also provides more support for solar heating technology. This paper analyzes the realization of building energy saving and solar heating in cold areas by using computer technology.

The solar computer simulation technology has been extensively applied in the fields of polymer curing test, solar cell detection and calibration, and satellite heat balance test, etc. The non-negative least-squares solution of the overdetermined equations based on the non-dominated sorting genetic algorithm (NSGA) to optimize the monochromatic light-emitting diode (LED) matching light source combination, replace some monochromatic LED with white LED to simulate the solar spectrum, and discuss several LED lights with different peak wavelengths that can be replaced by white LED. The simulation results suggest that in the range of 300 ∼ 1100 nm, as the monochromatic LED types replaced by white LED increase, the total number of LEDs used is reduced, and the spectral match decreases. When LEDs with three different peak wavelengths are replaced, the correlation index in the fitting based on the algorithm is 0.9035, where the number of LEDs can be reduced by 15.6%, and the simulation spectrum is basically consistent with the target one. The proposed method has a small spectral mismatch and can be used to distinguish two absorption valleys of the standard solar spectrum AM1.5 accurately.

With the increasing strength of the national economy, more and more attention has been paid to the development and training of talents, especially the training of talents in higher vocational education. It is the school's unremitting efforts and pursuit to cultivate professional and skilled talents. Therefore, in order to output more application-oriented talents to the society, higher vocational colleges will actively use the computer information teaching and training model, greatly improve students' interest in learning, to help students develop in an all-round way. This paper mainly studies and analyzes the elements and development trend of the practical training teaching mode in higher vocational colleges under the condition of computer information technology.

With the steady progress of social economy on the time axis, regional economic statistics, as an important basis for countries to understand the local economic development and formulate economic development policies, have also made great strides. At present, because of its powerful analysis and statistical function, network big data has been widely used in regional economic statistics. In this paper, the main component analysis method is used as an example, and the application of large data in regional economic statistics can greatly improve the accuracy of statistics, reduce the error, and through the use of computer technology to analyze the existing problems in the application of regional economic statistics in large-scale data, and put forward a solution.

Contemporary art is the subversion of traditional art forms by artists influenced by the philosophical thoughts of Kant, Hegel, Schopenhauer and Nietzsche. And Freud's psychology. The vulnerability of contemporary art is reflected in the following aspects: with the continuous progress of modern science and technology, digital technology in the developed computer media era has promoted artists influenced by advanced technology and digital technology to create artistic works in the media era, which has changed the traditional creation mode and gradually adopted a more open attitude. Contemporary art is gradually transforming into other forms of "painting" : graffiti, integrated material art, installation art, performance art, conceptual art, image art, computer multimedia art, etc.

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.

To start with the development and application of management accounting in China and combining with the characteristics of new economic environment, this paper points out the far-reaching influence that the new economy and new technology environment have brought to the industry. Based on the deep analysis of the current situation, the necessity of applying computer technology to management accounting method is pointed out, and the problems to be solved and the direction of innovation are clearly combed, in order to make the financial practice of enterprises more realistic and feasible.

This paper first introduces the basic concepts of playing and legato, and discusses the importance and difference of playing and legato. Then computer audio technology is used for audio contrast analysis. This paper expounds the connotation of piano singing in order to provide reference for piano learners and piano teachers.

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.

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.

The "new and old kinetic energy conversion" is a national development idea recently proposed by Chinese government. New and old kinetic energy conversion is closely related to the competitive advantages, especially in service enterprises. Coordinated process theory is presented in this paper, on the basis of empirical research, by combining computer technology shifts the kinetic energy is discussed and the service enterprise competitive advantage of internal relations, set up a new kinetic energy conversion relations with service enterprise competitive advantage model, the model reveals the service enterprises to keep up with the old and the new kinetic energy conversion power source, is for government departments to promote the old and new energy transformation provides a effective method. At the same time, the application of computer technology in the transformation of old and new drivers in service enterprises is studied.

At present, the development of higher vocational education has become a hot issue in the whole field of education. At the same time, mental health education for college students in higher vocational colleges has also received extensive attention, especially how to improve the psychological quality of college students through effective mental health education mode. Under this background, this paper analyzes the mental health of college students in higher vocational colleges by using computer big data technology, and explores the construction method of the new mental health education model for higher vocational college students based on computer big data technology.

The emergence of Web of things technology has completely refreshed people's understanding of the relationship between objects and wireless networks. After people realize the use value of the Web of things, people's skilled use of the Web of things helps people to come up with a combination of the Web of things and the SC. This paper mainly introduces the basic framework of the Web of things and puts forward the optimization scheme and information sharing model of the SC of the Web of things for agricultural products based on RFID.

Many people like to watch basketball games. Basketball games can make people blood boil. In the process of judging basketball players, the statistical method of basketball technique is an effective way to evaluate players' tactical and technical ability. Through this kind of statistical technology, we can count a player's various game skills and the rules he violates. These include shooting, rebounding, mistakes, fouls and playing time. If the technical statistics of basketball match is carried out manually, it is not ideal. After a long-term research, the technical staff of the Basketball Association put forward the method of basketball technical statistics of computer software. This paper analyzes and discusses the application of basketball technology statistics based on computer technology, and finally comes to a conclusion.

Volleyball is a popular sport in the world. It is a complex tactical sport with strong antagonism and comprehensiveness. Volleyball training and volleyball competition are the work that our country sports circles attach great importance to. In order to help the players improve their skills and competition ability, China has invested a lot of manpower and material resources in the field of volleyball training. The relationship between modern volleyball training methods and computer technology is more and more close. This paper analyzes and studies the application of computer technology in the field of volleyball training, and finally comes to a conclusion.

Cobb Douglas production function also has unique advantages in quantitative analysis of the factors that influence urban economic growth, as well as the short-term and long-term effects and adjustments of various resource inputs on urban economy. Cobb Douglas production function combined with computer technology, the data analysis is more targeted. Therefore, it has been more and more widely used in the study of urban local economic growth management. This paper first analyzes the cobb-douglas production function theory, and then studies the practical application of the cobb-douglas production function model in urban local economic growth. Finally, through the estimation and adjustment of the Cobb Douglas production function model with computer technology, the influence and effect of different variables on the local economic growth of the city were analyzed.

Due to the uncertainty of audit environment and audit work, the development of audit software in colleges and universities in China has been troubled for many years, but in recent years there has been a breakthrough and significant progress has been made. At the same time, with the rapid development of information technology and the increasing popularity of accounting computerization, audit means have gradually transferred from traditional manual audit to computer audit. To carry out computer audit has become an urgent task faced by audit institutions and auditors in colleges and universities in China^[1].

Based on the detailed research and analysis of the current situation of the new rural residence in yunnan, this paper combined with the construction of the new rural residence space to express the re-thinking of the interior design. The use of definitions and dimensions considering interior design as a starting point, detailed analysis of some issues without the actual interior design of the new rural residence in yunnan. Combined with computer CAD technology, some targeted optimization or rectification methods are proposed to be more in line with the actual situation, so as to obtain new research results in the construction of new rural housing.

Promoting the development and utilization of new energy is the essential goal of China's energy revolution, and energy interconnection is the key means to achieve this goal. This paper first analyzes the role of computer processing system in promoting energy revolution in energy interconnection, especially the development of energy storage technology in new energy power system. The compatibility between energy interconnection and new energy power system is analyzed. Secondly, the energy storage technology considering the energy storage optimization in each link of the new energy power system under the background of energy interconnection is proposed. Finally, the key technologies of energy interconnection and new energy power system integration are studied, and Suggestions for future research are put forward.

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.

The artistic form of opera rehearsal was formally formed in Baroque period. Its singing style, method and cultural connotation have a profound impact on the singing, arrangement and performance of modern opera, In the specific teaching practice, from the perspective of rehearsal, verify the unique value and significance of computer-aided opera rehearsal, reflect on the problems existing in vocal music teaching in domestic art colleges, and prove the important role of computer-aided in modern vocal music teaching and the significance of its culture for our modern people.

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.

The apprenticeship system with teachers and apprentices has a long history in China, and has made great contributions to China's economic development, the inheritance of advanced technology and the progress of human society. Essentially, modern apprenticeship and traditional apprenticeships is consistent, namely have teacher, student and teacher to student's education and instruction, emphasize "in high school, learn to do", but its formation and the basis of the meaning and value is different from that of traditional apprenticeship, the main body of apprenticeships, forms, as well as the relationship between teachers and students, are changed.

With the rapid development of the mobile Internet, the degree of the logistics industry is deepening, the logistics operation process has produced a large number of data, how to use the computer for visual logistics operation management, is the entire logistics industry is facing the opportunity and problem. The application of computer technology can help logistics enterprises improve their management level; realize the purpose of intelligent decision-making and accurate prediction. Furthermore, it can also predict the future demand of commodities, open up new markets, expand the business scope, and realize refined and visual control of the commodity circulation process.

In this paper, rheumatoid arthritis is studied as an example of complex diseases. As we all know, rheumatoid arthritis is a relatively complex disease of autoimmunity. It is caused by genetic and environmental factors. However, the mechanism of its pathogenesis and regulation is still unclear. This paper proposes a new method framework from the system level. We plan to use the already regulated information and functional relationships to explain the risk gene elements. For different risk gene modules, we can use the database to explore the relationship between them and the corresponding transcription factors. I believe that the results obtained will provide useful reference for the development of clinical medicine.

UAV remote sensing systems are widely used in environmental investigations. It is mainly used to classify land resources and monitor environmental land in urban areas to fully grasp urban land resource information. At present, some government departments in China have tried to use unmanned aerial vehicle remote sensing systems for environmental investigations. Using high-definition digital cameras equipped with unmanned aerial vehicles to carry out environmental surveys in rural and urban land resources. The unmanned aerial vehicle remote sensing system obtains a remote sensing map to provide a basis for the measurement of land use rights, reduces the investment in traditional land measurement manpower and material resources, greatly improves the measurement efficiency and meets the precise requirements of government departments for environmental monitoring. This article analyzes and explores the application of UAV remote sensing technology in surveying and mapping.

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.

At present, the control of greenhouse environment of agricultural greenhouses in China mainly depends on artificial and simple equipment. This situation shows that our agricultural management lacks scientific technology. Production management lacks scientific equipment. With the continuous development of information technology of logistics network, the monitoring system of intelligent shed has been invented. The emergence of intelligent monitoring system has also been widely concerned by people. This paper studies the design of the monitoring system of intelligent agricultural greenhouse based on the cloud platform of 5G network technology, and finally draws the corresponding conclusion.

With the rapid progress of urbanization in China in recent decades, reinforced concrete frames have played an irreplaceable role in urban development and improvement of living environment, it can be said that our surrounding environment, there is no place where reinforced concrete cannot be seen. At present, our living standard and living environment have been greatly improved, which has brought us a stronger demand for environmental safety and beauty. In this paper, the crack resistance of the eccentric joints of reinforced concrete frame beam-column is studied by using computer finite element analysis.

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.

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.

Rich and delicate in the expressions of feelings, "North Shifan" music is more distinctive in melody than other music. It has more abundant emotional expressions and can express emotions from sadness to joy. "North Shifan" music is an essential aspect of Chinese culture and art. In this paper, the historical characteristics and current challenges in the development of North Shifan music are analyzed based on elaborating the development of three intangible cultural heritage inheritance bases, the impartation and inheritance of Cuxi Shifan music scores in the traditional folk areas with the development of the times. Suggestions on the inheritance and development of North Shifan music are proposed from six aspects: government funding support, industrial policy support, talent policy implementation, education and inheritance, academic research, promotion and application and we analysis the inheritance and innovation based on the computer information technology.

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.

With the rapid development of domestic economy, the process of urbanization is accelerating. According to the national unification and the national economic operation data released by the Planning Bureau in 2015, the urbanization population accounts for the total population 56.1% of the total. The rapid development of urbanization has promoted the economic and social development of the city. However, the development of urbanization brings about a series of urban problems as well as urban economy. For example, urban resources are increasingly tense, urban environment is becoming worse, and urban livelihood issues are becoming more and more serious. The more complicated. It is everyone's wish to promote the harmony of life and improve the quality of life. How to reasonably apply computer big data technology to the construction of smart city has become an important topic for researcher significance to improve the employment rate to give full play to the role of counselors in employment guidance.

At present, the popularity of cars has brought great convenience to our life, but at the same time it has brought about many bad effects, such as noise pollution caused by the sound of car horns. Therefore, it is very important for us to study the controllability of car horn, and the mature development of computer technology provides us with the research conditions and convenience. In this paper, the controllability of sound wave of car horn in two-dimensional space is studied by combining computer technology with sound diffusion mechanism, and a kind of noise thermometer invented by American scientists is taken as an example.

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.

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.

Lightweight modular mobile homes can be used under harsh environmental conditions, but are susceptible to wind loads. On this basis, the physical bearing capacity and settlement of the combined mobile house are studied by computer technology. In this way, the structural design load of the combined mobile house can be judged and tested, and the most unfavorable stress position of the structure can be determined. This paper first introduces the general structure of the combined mobile house, then designs and studies the wind load test of the combined mobile house by using computer technology, and analyzes the test results in detail.

Generally speaking, the structural design of civil engineering depends on the foundation reinforcement technology, such as the soil "reinforcement method" which can improve the tensile strength of the soil. Geosynthetic materials, sand well preloading and plastic drainage belts to promote soil drainage consolidation; "Dynamic compaction" and "vibration flushing", etc. The development of computer technology provides a new way of thinking for structural design of civil engineering. The purpose of this paper is to study how to realize the combination of computer technology and foundation reinforcement technology in the structural design process of civil engineering.

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.

In the decades after the emergence of computer building information model, the construction industry in China is developing rapidly. With our familiarity with high-end technology, the application of computer building information model has been recognized and advocated by the government and the construction industry. In this paper, the process and construction management system of prefabricated building design based on computer building information model are studied.

With the development of science and technology, especially the development of computer network and multimedia equipment and technology and popularization, the application of multimedia in rural primary and middle school English class is becoming more and more be taken seriously, it makes full use of images, text, practicality, sound, animation, and other forms convey information to all students, auxiliary classroom teaching and the teaching of cohesion, changed the traditional pattern of rural primary and middle school English teaching, so this article through to the analysis of the rural primary and secondary school English traditional teaching mode, called for English teachers is clever use of multimedia means, optimize English classroom teaching, such as: reasonable use of courseware, stimulate students view hearing; Using multimedia to create language scenes; Make full use of multimedia to improve students' listening and speaking ability; The method of audio-visual education is used to cultivate students' ability of independent learning and to optimize their way of thinking. However, there are also the following deficiencies in the application of multimedia: some teachers attach too much importance to multimedia and neglect the conventional teaching methods; their teaching skills are lagging behind; they misuse or abuse multimedia; their courseware contents are too flashy; and students' interests are transferred. We English teachers should learn to use multimedia correctly and combine with other teaching methods to improve teaching efficiency, which plays a positive role in the cohesion of English teaching in primary and middle schools in rural areas.

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.

In the current era of explosive information development, data has been highly valued and paid attention to by various countries and major enterprises. Big data technology can extract the most valuable information it needs from the massive data information. And to provide services for the development of enterprises, thereby improving the level of business management, which plays a very important role in the country's policies and various business activities of the enterprise. In the process of enterprise financial management, information technology in the context of the information age should be fully applied to strengthen the continuous transformation and innovation of enterprise financial management, so as to be able to meet the development needs of the enterprise and maximize the enterprise. The utilization rate of funds improves the level of corporate profit margins. This article fully analyzes the impact of the information age on corporate financial management and then proposes specific countermeasures for enterprise financial management in the information age.

In recent years, the integration of subway information system has developed into a network data service platform with new service functions and broad development prospects. Its essence is the overall planning and optimization of data resources and it provides scientific solutions for improving system functions and for enterprise decision-making and management. The data information logic model is a relatively new data integration processing method. It can edit, integrate and plan independent decentralized data information resources among each other into a unified resource library, identify the data in them and create corresponding directories. The source data information is determined so as to achieve sharing in the process of data inheritance. The main advantage of the data information logic model is that the system can still be used after the upgrade and is good at mining the hidden value of the data. The middleware model is currently the most used data integration solution in enterprises. It mainly uses visual logic diagrams to extract hidden information of enterprise data in advance to help users more clearly grasp the context of data resources.

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.

As the largest amount of industrial waste, people have been unable to recognize the use value of coal gangue. In many industries, gangue has no main use. However, in the process of road construction, the use of coal gangue has been recognized by people. Because of its high hardness and good water stability, gangue can be used as a material for subgrade construction. In order to broaden the application prospect of coal gangue in road engineering, this paper analyzes the application performance of asphalt mortar with coal gangue powder as the main component in road engineering, and finally draws a conclusion.

Physics application practice is of great significance to the application of Physics and the cultivation of basic scientific research talents. With the continuous improvement of technology value cognition in the basic industry of China, the improvement of manufacturing industry competitiveness and the realization of innovation are inseparable from the participation of physical application technology. However, according to the results of industry research in recent years, the contribution rate of university Physics to society in China is far from expected, and there is still a lot to improve in the teaching of university application technologies and application practice abilities, which should focus on the future teaching. With the continuous exploration of Chinese computer education technology and data-base teaching technology, the teaching methods in colleges and universities have been greatly changed. According to the research, the current rate of online reading habits and communication habits of college students in China is up to about 67.9%. The demands of students' independent growth and the needs for society comprehensive talents make college Physics undertake more training responsibilities and ability teaching tasks. As an important medium of college teaching, the development and application level of computer-aided system has a certain impact on the teaching effect of college Physics. At present, the CAI system with multimedia courseware as the core couldn't meet the needs of students' study. Therefore, it is necessary to design and deal with the CAI System in a more diversified way. Because of its high abstraction, theory and comprehensiveness, the past teaching practice of college Physics is difficult to achieve high results. Therefore, based on the computer aided system, this paper explores the reform direction and feasibility realization mode of applied technology college Physics teaching.

In recent years, the computer simulation technology has been widely studied, among which the seismic reliability theory of the structure and the seismic performance evaluation of the structure is widely concerned. The seismic reliability analysis of structures is of great significance to the seismic performance evaluation, design and decision of structures. Taking earthquake action as a random process and using random vibration theory to study the probabilistic characteristics is an important development of structural seismic theory. In the more than half a century since Housner first used stochastic processes in 1947, the random vibration theory has been applied and developed rapidly in engineering seismic analysis, and has increasingly become a more advanced and reasonable seismic analysis tool.

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.

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.

Frequent fire incidents on electric bicycles; have brought great harm to consumers' personal and property safety. This article sort and analyze the data, combine the collected accident reports of electric bicycles. Due to the incompleteness of the data, this article use Bayesian Network to construct the Bayesian network topology model of electric bicycles fire risk, use fuzzy set theory to solve Fuzzy computing the language discussed by experts. Finally, the fuzzy Bayesian theory is used to calculate the example, and the fire risk of the electric bicycle in the example is low. This method provides a reference for the accident investigation and analysis of electric bicycles.

Due to the intermittent and volatility of wind power output, the traditional power grid's operation and dispatching mode and the adjustment capability of conventional units were unable to meet the demands of large-scale wind power penetration. Based on the characteristics of the day-ahead dispatching link in the spot power market, this paper combines the auxiliary service with the day-ahead power market transaction to form the day-ahead trading plan. At the same time, considering the conventional thermal power peak shifting and interruptible load peak shifting, a new market peak shifting optimization model reflecting the will of the source-load role is formed. On this basis, electricity day-ahead market dispatching model considering source-load and peak shifting is established, aiming at the maximum expected income of wind power plant. Through practical examples and scenario analysis, it is verified that the source-load peak shifting scheduling model will effectively improve the expected income and absorption rate of wind power plant.

With the promotion of the market-oriented reform of China's electric power industry, carrying out day-ahead market transactions has become an important way to promote new energy wind power consumption. This paper designs a day-ahead market transaction and settlement model considering various energy trading modes and new energy consumption, and puts forward a method based on wind power absorption, combining medium-term and long-term contract power with day-ahead transaction. In order to deal with the uncertainty of wind power, a multi-scenario probability model is adopted, and scenario subtraction method is used in the basic model. For China's electricity market in the medium and long term, the transition from electricity trading market to spot market provides analytical tools and methodological guidance.

This paper is focus on the application of energy storage on the power side to participate in the consumption of clean energy. First, the impact of energy storage on the consumption of clean energy on the power side will be analyzed. Then, a real-time spot market decision-making model of energy storage participating in clean energy is established. Finally, the effectiveness of the proposed optimization is analyzed through simulation examples to verify the positive role of energy storage on the power generation side and clean energy consumption on the participation side.

This paper applies the research results of visual analysis to the field of brand personality research. Taking seven e-commerce platform products representing Sichuan liquor brand as the research object, the combination of social network analysis and co-word analysis is used to quantify high-frequency characteristics, revealing Sichuan liquor brand personality shaping propositions, and helping enterprises further differentiate their brand personality.

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.

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.

This article present single-input-single-output (SISO) measurement results of vehicle-to-vehicle (V2V) radio channel in an urban crossroad scenario at 5.9 GHz, where the measurement vehicles driving in vertical direction. Besides, radio channel characteristics include power delay profile (PDP), channel gain and delay spread also were conducted. Moreover, the lack of line of sight (LOS) path due to the roadside buildings can case 9 dB attention loss in channel gain and around 130 ns increase in root mean square (RMS) delay. The influences of roadside buildings on V2V radio channels cannot be ignored. All the conclusions drawn in this article have guiding significance for the design of Intelligent Transportation System (ITS).

All with the advent of the information economy era, the rapid popularization of the Internet and the large-scale use of commerce, the rapid development and large-scale investment of information technology, and the improvement of the quality of consumers as transaction entities have promoted the comprehensive development of today's e-commerce. This paper mainly studies the model of e-commerce going to the countryside to promote the development of rural characteristic economy based on big data analysis. This article further investigates the development of a certain rural e-commerce, analyzes the background, experience, practices, difficulties and problems of a certain rural e-commerce in-depth, clarifies the focus and main tasks of a certain rural e-commerce Put forward constructive opinions and suggestions, explore an updated and more suitable road for the development of rural e-commerce, and provide relevant theoretical support and decision-making for the municipal party committee and government to formulate relevant policies, introduce supportive policies, and promote the rapid and healthy development of new urbanization. in accordance with.

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.

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.

Spinning technology is an effective method for forming thin-walled long cylindrical parts. Based on ABAQUS finite element software, this paper analyses the spin forming of magnesium alloy cylindrical parts, and obtains the influence of key parameters such as mandrel speed, feed rate, thinning rate, roller radius and spinning temperature on the spinning process. The spinning test of AZ31 magnesium alloy long cylindrical parts was carried out, and the test results were consistent with the simulation results. Numerical simulation and experimental verification provide the basis for the development of magnesium alloy spinning process.

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.

In this paper, the heat transfer effect of rough surface in laminar flow is introduced by fully developed fields for solving the Navier–Stokes equations of incompressible flow in assuming two-dimension using the direction splitting method. Firstly, the algorithm of the incompressible Navier–Stokes equations with pressure correct is carried out. Secondly, the effects of pressure drop and heat transfer and are investigated and discussed in different rough surface elements which are configured with triangular and rectangular element. The Reynolds number, roughness element spacing, and roughness height are also considered as the factors which affect the heat transfer. The results indicate that the parallel present method reaches the stage of basically stable state rapidly and accurately. Compared with the smooth surface, the global performance of heat transfer is improved by the roughness surface since the pressure drop is lost. The effects of triangular element roughness surface on laminar flow and heat transfer are much stronger than rectangular element roughness surface when the spacing of the rough is changed. The flow over the triangular element roughness surface becomes stronger, which contributes to enhancement heat transfer meanwhile increase the pressure drop when the roughness height is higher.

With the continuous development of social economy, energy and environmental issues deserve more and more attention. In order to improve the new energy's consumption, this paper proposes an optimized social income strategy for clean energy consumption based on transmission channel constraints. The main method combines the method of cooperative game to maximize the value of social income, so as to determine the optimal combination of power generation, then taking into account the constraints of transmission channels and other issues, and then solving the problem of cross-regional clean energy trade with the goal of maximal social benefits. At the same time, the proceeds from the cooperative game can be distributed to each power transaction entity through the method of nuclear solution.

In this study, for the issues including the large size, poor safety, and lethality of fragments during the explosion of the stun grenade of a certain model, a new model of stun grenade was designed. The design concept of miniaturization, oval structure of the grenade body, lighting by serial dual time-delay tubes, and an additional ring pull locking buckle was adopted to effectively improve the safety of carrying; a simulation analysis of the stress distribution, force on thread, and pressure changes during the shear separation of the connection seat was conducted to verify the feasibility of the separation of the connection seat; the separation test for the connection seat, fracture test for the grenade body, and safety test for the fragments were conducted to verify the reliability and safety of the designed structure.

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.

In pavement engineering, concrete is the most widely used building material, but it has its own shortcomings such as low tensile and flexural strength, brittleness and poor durability, which easily lead to pavement damage. Common cement concrete repair materials have a long construction period, which affects traffic. Therefore, it is necessary to adopt fast repair materials to meet the requirements of traffic in a short time. The addition of fibers in pavement cement concrete can significantly improve the tensile and flexural strength and durability of concrete, and play a role in strengthening toughness. Compared with the single fiber concrete, which is relatively mature at present, this paper aims at strengthening and repairing the defects of waste concrete subgrade and base cracks, void at the bottom of pavement slab, etc. The fluidity and mechanical properties of recycled aggregate grouting material are studied through experiments, and on this basis, the mechanical properties of recycled concrete grouting are further analyzed. The results reveal the relationship between the amount of recycled fine aggregate, ambient temperature and the fluidity of recycled aggregate grouting, and the influence of the amount of recycled fine aggregate and the water-cement ratio on the mechanical properties of recycled aggregate grouting and grouting recycled concrete.

This paper designs and implements an automatic grouping method for cascade production planning department and steelmaking plant in organizational production. The original data of group casting in this system is downloaded from SAP system to MES system by production planning department, and then decomposed into batch planning. Production plan data arrives in the database, After automatic calculation, judgment and other processing, the system triggers the next step of furnace group pouring operation. The whole process can timely and accurately form furnace number and pouring number data, and has traceability and data coherence. Triggering the next process execution improves the efficiency of information flow transmission. It solves the problem that the number of stoves and pouring times are not timely, rigorous, traceability and coherence are not enough in the process of organizing production in steelmaking plants.

The quality of the bearing ring raceway surface layer directly affects its service performance. Surface defects such as micro-cracks, high tensile stress state and tissue damage caused by improper processing methods seriously damage the surface integrity of the work-piece and reduce bearing fatigue strength or fatigue life. In this paper, through the theoretical analysis and surface integrity manufacturing technology of abrasive flow polishing for high service performance bearings, the basic theoretical method for improving the surface quality of large bearings is established. This achieves the performance-driven manufacturing requirements required for high service performance bearing parts and innovative manufacturing methods for improving the quality of the bearing ring raceway surface.

With the rapid development of large-scale and intensive livestock and poultry farming, a large number of livestock and poultry manure has been produced. If livestock and poultry manure is directly stacked or improperly disposed of, it will cause extremely serious pollution to the surrounding water, air and soil, and endanger human health. It is an effective method to dispose and utilize livestock and poultry manure properly according to local conditions. However, because of the large water content of livestock and poultry manure, most of the water in the manure needs to be removed before resource disposal. Therefore, drying livestock and poultry manure is a necessary link in the resource disposal and utilization of livestock and poultry manure. In view of the shortcoming of high energy consumption, uneven drying and low drying efficiency existing in the existing drying technology equipment for livestock and poultry manure, on the basis of overall design and working principle analysis of the livestock and poultry manure dryer, innovative designs are made in the following aspects: improving the efficiency of material transportation from the sloping spiral feeding device; at the bottom of the feed box, seepage holes are equipped with, which can preliminarily filter and separate the moisture in livestock and poultry manure; the conveyor belt in the drying oven adopts three-step jump conveyor mode to realize the rolling conveyor drying of livestock and poultry manure. These innovative designs can improve the transportation efficiency, drying uniformity and drying efficiency of livestock and poultry manure, effectively reduce the moisture content in livestock and poultry manure, reduce the energy consumption of dryer, and effectively realize the resource disposal and utilization of livestock and poultry manure.

Graphite electrode resistivity measurements of ontology is the last line of carbon product enterprise important parameters in the production process of testing process, in the decades of testing technology in the process of continuous development, appeared many kinds of test methods and test system, each have each advantage, each have each characteristic, first introduced in this paper, from the early large current test system, to the analysis of current detection and finally draw a high cost performance measurement methods and measuring current.

Wireless charging technology for electric vehicles (WCT) is a new non-contact charging technology applied to new energy electric vehicles. Compared with traditional contact wire charging, WCT has the advantages of high safety factor, less weather factor, more intelligent charging and convenient configuration. Firstly, this paper discusses the background of wireless charging technology for electric vehicles, the development history of wireless charging and the research status at home and abroad. Then, it summarizes the basic composition, principle, category and performance characteristics of electric vehicle wireless charging, describes the main application status and development prospects of wireless charging technology in electric vehicle, and finally analyses the 3-60 kW high-power wireless charging case of ZTEV electric vehicle which has been applied in many places in China and Qualcomm case, put forward the future prospects of wireless charging technology for automobiles.

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.

With the development of the city, the advantages of the integrated pipe gallery are becoming more and more obvious. In recent years, the government departments have also intensified efforts to promote the construction of urban integrated pipe gallery. The prefabricated pipe gallery can save all the template costs, and there is no wet operation on site. Most of the process is completed in the prefabrication plant, the labor cost is greatly reduced, and the construction period is greatly shortened. Improve and optimize the design and installation technology of unequal gantry cranes and pipe lifting and installation technology, and improve the overall ergonomics of prefabricated pipe installation through rapid installation of prefabricated pipes. During the installation process of the prefabricated pipe gallery, according to the characteristics of the installation of the pipe gallery, the new technology and new equipment are used for the flow-through operation, which can realize the integrated construction work of quick unloading, hoisting, turning and installation of components, greatly improving the installation efficiency.

Major traffic accidents caused by snow cover and ice on pavements are responsible for large numbers of casualties and extensive property losses each year around the globe. A full-scale heat-pipe-based active snow-melting test system for outdoor asphalt roads was constructed to study and analyze its working performance on in-service asphalt highways. Based on long-term monitoring data, the active snow-melting system was analyzed to determine the temperature-field distribution pattern and relevant influencing factors as well as its performance on asphalt pavements. The research results show that: (1) the system exhibited excellent performance. Three natural snowfall events occurred on the full-scale test platform. In each event, the snow-melting system was able to effectively melt the snow. (2) Under long-term low-temperature conditions in winter, the active snow-melting system was able to increase the pavement temperature by approximately 10 °C. (3) In winter, the underground soil temperature decreased by approximately 4 °C as a result of heat extraction by the underground heat pipes and gradually recovered to its previous level as the outdoor ambient temperature gradually increased. This finding suggests that underground soil can provide heat to the snow-melting system for an extended period of time and continuously ensure its pavement snow-melting performance. The engineering application on the G18 Highway further demonstrates the effectiveness and reliability of active snow-melting systems based on heat-pipe technology.

In the construction process of optical fiber communication engineering, it is necessary to pay attention to how to improve the construction technology of optical cable line, so as to ensure the construction quality of optical fiber communication engineering. Based on the effective work practice, this paper summarizes the application precautions of optical cable line construction technology in optical fiber communication engineering, and also puts forward the technical points.

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.

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.

The nano-fluid added with nano-particles in the easily degradable vegetable oil base ensures that the contact angle of the aluminum alloy 7075 under the vegetable oil base is slightly improved, and the lubrication performance is further strengthened, the cutting force is reduced, the surface quality is improved, and the roughness is reduced. When milling the aluminum alloy 7075, the lubrication performance effect of the nano-fluid is evaluated. Taking aviation aluminum 7075 as workpiece. The contact angle, cutting force, surface roughness and SEM appearance of the workpiece were evaluated under four lubrication conditions: dry processing, emulsion pouring, micro lubrication of cottonseed oil and cottonseed oil-based + 0.5% Al₂O₃ nano-particles. The experimental results show that the contact angle of nano-fluid to aluminum alloy 7075 is slightly larger than that of vegetable oil, but with the addition of nano-particles, the chips roll from sliding, making the surface morphology of the machined surface good, the cutting force minimum, the roughness minimum, indicating that the nano-fluid lubrication and antifriction performance is good.

Integrated power generation group's participation in the carbon trading market and peaking auxiliary service market is one of the effective ways to promote low carbon power development and wind power consumption. Aiming at the serious problem of wind abandonment during the low temperature period of winter heating period in Northeast China, a multi-market mechanism is proposed. The carbon trading is analysed. Firstly, and the regional peak demand optimization model based on multi-scenario stochastic programming and the maximum wind power acceptance power calculation model of regional power grid is constructed to calculate the peak shaving demand and existing peak shaving in each period of the regional power grid. Maximum wind power acceptance under resources; Based on the coordination of carbon quotas among power generation groups and the subsection compensation mechanism of compensated peak shaving costs, and aiming at the minimum sum of total coal consumption costs, wind abandonment penalties and compensation costs, integrated dispatching model considering carbon trading and peak shaving compensation is established. Finally, an example is given to verify the rationality and effectiveness of the proposed strategy.

With the vigorous development of bridge construction in China, the structure of bridges is also more abundant. Among them, the prefabricated small box girder has been widely used in engineering fields at home and abroad due to its large section torsional strength, bending strength, and low cost and fast construction speed. However, due to poor design and improper construction in the early stage, coupled with the vehicle over-aging and inadequate material maintenance, the prefabricated small box girder bridges have different degrees of disease, how to study the disease generation mechanism and take targeted reinforcement. The treatment strategy is related to the safety of transportation in China. In this paper, the statistical analysis of the disease of small box girder in active service is carried out, and the mechanism of various diseases is analyzed and summarized. On this basis, the common methods of reinforcement and treatment of small box girder in China are comprehensively analyzed. The research results of this paper have important reference value for mastering the causes of the disease of small box girder in China's expressway and the corresponding reinforcement strategy.

Aiming at the problem of unstable grid connection of photovoltaic power source, an in-situ consumption strategy was proposed, and a photovoltaic energy and phase change energy storage method was proposed to provide energy for greenhouse loading. Design an agricultural greenhouse power supply system with complementary solar energy and phase change thermal storage materials, including constant temperature control center, detection circuit, input circuit and display circuit. It could be seen through software programming and simulation analysis that phase change and photovoltaic combined energy supply could to meet the load demand of agricultural greenhouses, it provided a reference for the local consumption of photovoltaic energy.

Various types of standard and non-standard large-size rolling bearings, which function as a rotating force and a main bearing force in the equipment, have continuously improved their performance requirements. This paper proposes surface integrity manufacturing technology for Large-size Bearing Raceway, analyzes the domestic and international overview and development level, research content and key technologies, and the expected indicators and social benefits.

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.

With the development of economy, the progress of science and technology, the development of automobile industry is more and more rapid. There are more and more kinds of automobiles in the world. Therefore, people have higher and higher requirements for automobile performance, comfort and smoothness. Therefore, this paper makes a series of research on the design and development of continuously adjustable damping test-bed. Firstly, this paper presents the principle and classification of continuously adjustable damping damper, because the traditional passive suspension structure and damping value cannot be changed once determined, and cannot meet the requirements of various road conditions. In order to meet the complex and changeable working environment, a continuously adjustable damping damper is designed. Secondly, this paper studies half of the active suspension, and half of the active suspension includes linear model and bilinear model, and designs a scale-up quarter car test-bed. The core components of the test-bed are MR damper and tuned mass damper. Finally, the results show that the MR damper has good damping dissipation energy characteristics, and the damping value of MR damper has a good linear relationship with the current.

The running stability of high-speed railway is the goal of operators and vehicle manufacturers, so the running stability of high-speed railway is an important part of vehicle dynamics analysis. The stability analysis involves a lot of working conditions and suspension parameters, and the analysis workload is huge. Therefore, in this paper, the random vibration and running stability of high-speed trains are taken as the research object, and the relevant fast algorithm of responding to the power spectrum of high-speed railway vehicles is derived through the virtual excitation method, so as to realize the running stability research of high-speed railway vehicles. In this paper, the vertical and horizontal response power spectrum and stability index of a high-speed train are analyzed. Finally, the stability index is used to analyze the dynamic performance of the train at the same time, and the line test results of the dynamic performance of the train are evaluated. The research results show that the simple and efficient analysis algorithm is helpful to improve the analysis efficiency and reduce the simulation calculation time.

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.

The neutral grounding fault line selection of low-voltage side of distribution transformer in civil buildings is of great significance in the field of power system. It is necessary to analyze the grounding fault of distribution transformer in civil buildings, calculate the current energy of distribution transformer by using the frequency coefficient of wavelet packet decomposition, and analyze the current fault components of grounding fault phase and sound phase, get the energy ratio of grounding fault current component, and complete the grounding fault of distribution transformer. Experiments show that the proposed algorithm can reasonably judge the fault line of distribution transformer nodes, and has a high accuracy in the selection of grounding faults.

Rotor dynamics theory is the basis for studying the motion of rotating machinery, and rotating machinery such as water turbines, steam turbines, and aero engines are indispensable core equipment for related industries. However, the current research on rotor dynamics is mostly based on linear conditions, which can no longer meet modern requirements. Engineering requirements, so the study of nonlinear rotor dynamics seems significant. The research purpose of this paper is to study the nonlinear dynamic model. Based on the theory of nonlinear rotor dynamics and the theoretical basis of the finite element method, a finite element simulation method is used to study the nonlinear rotor dynamics. In this paper, the finite element model in the discrete mass model is used. After introducing the research method and eddy theory of nonlinear rotor dynamics, the factors that may cause non-linear interference to the rotor motion in the rotor system are analyzed. The problem was simulated and analyzed, and the movement behavior of the eccentric rotor under elastic support was simulated by means of simulation, and the nonlinear effect of eccentricity on the rotor system was proved.

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.

In order to improve the construction quality of highway's civil engineering, a construction quality control model based on self-adaptive equilibrium game is proposed to improve the construction quality of highway's civil engineering. The constraint parameter model of construction quality control is constructed, and the fuzzy decision function of construction quality control of highway's civil engineering is established by combining the game equilibrium method of cost control and quality control. The optimal control of the construction quality of highway's civil engineering is realized by using the method of correlation constraint and autocorrelation game. The simulation results show that the model can effectively predict and control the quality of highway's civil engineering, the precision is high, the construction cost is reduced and the construction quality is improved.

With the development of economy, industry and manufacturing industry play an important role in China's economy. As the most extensive machinery in the industry and manufacturing industry, the development of crane will inevitably affect the development of the whole industry, so how to improve the performance of crane and how to carry out a wide range of analysis has become the current problem to be solved. Starting from the crane, this paper focuses on the study of the rigid dynamic load coefficient when the series resistance of the lifting mechanism of the crane starts, and analyzes the influence of these coefficients on the performance of the crane. In this paper, the big data analysis method is put forward firstly, and the change of rigid dynamic load coefficient when the chain resistance of crane hoisting mechanism starts in China's industry and manufacturing industry in the past 10 years is analyzed. Secondly, the concept and classification of crane are briefly summarized. The crane is mainly divided into two types, one is tire crane, the other is bridge crane. Then this paper establishes the system model and the mathematical model of the crane lifting transmission system. Through the analysis of the system model, we can get the relationship between the rigid dynamic load coefficient α and φ, and the relationship between β and φ. Their relationship is that the growth rate of the rigid dynamic load is slowed down after α is greater than 5, and the starting torque multiple and the rigid dynamic load coefficient are linear.

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%.

Magnesium alloys have many advantages, such as light weight, anti-seismic, anti-electromagnetic interference, high damping, high negative electricity and easy recycling. They are widely used in automobiles, motorcycles, and aerospace and are known as green engineering materials in the 21st century. Because of the special physical and chemical properties of magnesium alloys, the weldability of magnesium alloys is poor, which seriously hinders the use of magnesium alloy structural parts. Therefore, this paper analyses the welding problems of magnesium alloys, and discusses the fatigue properties of magnesium alloys.

The access of the distributed generator supply provides a supportive effect for the node voltage in the active distribution network, but at the same time also reduces the stability of the distribution network. The algorithm establishes the sensitivity matrix and analyzes the relationship between the node voltage and the reactive power output, to coordinating the output of each reactive power. Since the undervoltage and overvoltage of different nodes can be present in the network at the same time, the overvoltage and undervoltage can be adjusted, which achieve the control of the network node voltage. The simulation results show that the algorithm can realize the effective return of the node voltage and increase the stability of the distribution network voltage.

In order to improve the operation efficiency of internal combustion engine, the static relationship between the concentration and flow rate of coalbed methane and the operation parameters of internal combustion engine was studied. Based on the experiments, the effects of CBM component concentration and gas flow rate on air-fuel ratio, exhaust gas temperature, exhaust gas flow rate and compressor outlet pressure are summarized. It provides a certain technical support for the optimization control of internal combustion engine to change gas flow rate to adapt to the change of coal-bed methane composition.

Because of the increasing demand of modern residents for electric energy, the power supply load of electric power enterprises also increases. Under this condition, affected by the randomness of electricity consumption behavior of different residents, the electricity load generated by each resident will fluctuate greatly, which directly leads to the decline of power safety level. Under this condition, as the power manager, the power enterprise must guarantee the operation safety of the system and scheduling is the main means to achieve the goal. However, if the dispatching work is not carried out in time, it cannot completely eliminate the impact of residential power load. At this time, modern scholars put forward a super short-term forecasting technology of residential power load based on long-term and short-term memory cyclic neural network. The implementation of this technology can provide strong support for the power dispatching work, make the dispatching work more real-time, thus avoiding the negative residential power consumption the impact of the lotus. This paper mainly studies the ultra-short term forecasting of residential power load, expounds the basic concept and model building method of this method, and verifies its effectiveness through simulation and examples.

With the development of times and technology, the iprovement of technology has promoted the progress of blueberry juicing device at the same time. However, there are still defects. The current blueberry juicing device cannot improve the yield and anthocyanin content. Therefore, it is easy to waste raw materials. So a device to improve the juice yield and anthocyanin content in blueberry juice is designed to solve this problem. The device enables the squeezed residue discharged into the distillation drum through the slag discharge tube. At the same time, citric acid and sucrose solution is added into the distillation cylinder combined with solution storage tank. Hence it enables the heating of the heating silk base and make a small amount of juice in the residue extracted and evaporated under acidic conditions. Meanwhile, it is conducive to the dissolution of anthocyanins in the residue so that the evaporated steam is discharged into the cooling tube through the distillation tube for condensation and then into the collection tube for collection. The device can improve the juice yield and anthocyanin content of blueberry juice.

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%.

With the construction of the Digital South Network advances, the requirements for power supply reliability will also increase. The requirements for distribution network automation are specifically manifested in the increasing requirements for the automation level, reliability, and environmental adaptability of equipment for distribution network automation. In the "three high" environment, the failure rate of distribution automation equipment has remained high, which shows that the current weather resistance test does not meet the actual working conditions of the southern coast. In order to better meet the actual situation, this paper studies the accelerated test of electrical equipment corrosion. Based on the experimental results, the author analyzes the inadequacy of the current test methods. At last, the author proposes improvement direction and suggestions.

The problem of corrosion failure of distribution automation terminal in hot and humid environment is very prominent, which seriously restricts the development of smart grid in southern power grid. Therefore, this paper chooses three overhead FTU terminals as the research object to study characteristics of corrosion failure of distribution automation terminal. The corrosion failure analysis was carried out by SEM and EDS. EDS data showed that the content of oxygen in corrosion region was significantly higher than the slight corrosion region, the presence of sulfur and chlorine indicated that the corrosion environment was mainly a humid environment containing sulfur and chlorine. SEM found that the corrosion failure of terminal equipment is mainly due to the environment such as high temperature, humidity, chloride ion and sulfur. At the same time, the exposure of substrate is caused by the damage of plating layer or leakage plating which was further development of corrosion. Therefore, according to the corrosion characteristics of distribution automation terminal in hot and humid environment, the corresponding protective measures ensuring the safe operation of distribution automation system is proposed, which can extend the service life of distribution automation terminal and provide reliable basis for the future empirical test.

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.

Had a paper it about inertia The difficulting of inertial in classical mechanics, in this paper, the inertial is have nothing to do mass, it depend on acceleration and provide a formular that is look like Tylor's formula. It instruction the inertial mass as increase as acceleration, so inertial mass is different from gravitational mass. In this paper, the auther used to a experiment and proved the inertia is depend on acceleration.

This paper designed a forced demoulding mechanism for the high-rigidity material of the turbocharger relief valve. This mechanism could effectively overcome the shortcomings of traditional injection mold inlays, such as large volume and high production cost; The parameters of this mechanism were calculated to further optimize the performance of the mechanism; then the finite element simulation analysis was carried out to verify the feasibility of the mechanism under these parameters; Finally, the actual mold was trial-produced and the prototype of the pressure relief valve was trial-produced.

This paper analyzed the reasons for the oil leakage of the high-speed shaft of the wind power gearbox, regarding the common radial labyrinth seal and axial labyrinth seal oil leakage problems, the corresponding structural optimization was carried out. Furthermore, a new split-type comb-tooth seal device suitable for the high-speed shaft of the wind power gearbox was proposed, and a fluid analysis of the seal gap was performed. Finally, this optimization was applied to practice, the results showed a significant performance improvement, thus, the sealing effectiveness of the device after optimization was verified.

Based on the problems of desertification and salinization in the Qaidam Basin, this paper studies the coupled stress of saline-alkali and drought conditions on the seed germination of Haloxylon ammodendron from Qaidam provenance, and clarifies the comprehensive effect of salt, alkali and drought stress on Haloxylon ammodendron seed germination vigor. It provides a reference for the research on the resistance of Haloxylon ammodendron and provides a theoretical basis for improving the breeding efficiency of Haloxylon ammodendron population in the area of bad situation.

The open-cover power off switch of mine flameproof low-voltage explosion-proof electrical appliances must be absolutely electrified to open the cover in the use process. When the workers need to repair the flameproof products, the pre-stage power supply can be cut off for construction. "Bolt fastening locking mechanism of main flameproof chamber" is a new power failure method tried by domestic mining enterprises. It is on the bolt fastening open cover mode, add a layer of thin steel plate, and tighten with bolts. This steel plate through the switch button to the flameproof chamber to play the role of power failure. The purpose of this paper is to protect the safety of explosion-proof product users by designing the safety performance test of mine explosion-proof electrical products to prevent short circuit arc. This paper analyzes the cause of flammable gas explosion in short circuit arc under the condition of the explosion-proof safety performance and the harm degree, the influence of initial short circuit arc causes and preventive measures are given, through the experiment was designed to prevent short-circuit arc safety inspection mechanism, and makes the product security pass rate is higher than 98%, in the end, made clear that to strengthen the quality control of flameproof switch products is of great significance to ensure the safety of coal mine.

Substation is an indispensable part of power system, responsible for the heavy task of power transmission and redistribution, and plays a pivotal role in the safe and economic operation of power grid. This design builds a 110 KV step-down substation. First of all, select the connection mode of each voltage level and choose the best flexible connection mode in terms of technology and economy. Secondly, calculate that short-circuit current. Obtain the values of the short-circuit steady-state current and the impulse current when the short-circuit occurs in the working bus of each voltage level from the three-phase short-circuit calculation. Finally, the equipment selection is made according to the rated voltage and the maximum continuous operating current of each voltage level, and then verified.

With the advancement of industry and technology and the support of advanced technological processes, electrical control system has undergone tremendous changes. Various technologies constitute advanced technology, and their integration into electrical control system enables industrial business to be developed better. However, due to the late start of industrialization in China, there are still inadequate researches, and it is not mature enough to deal with faults in electrical control. The author first introduces the relevant content of electrical control system, then briefly introduces the electrical fault inspection and diagnosis technology, and finally discusses how to repair the electrical control system.

Based on fuzzy comprehensive evaluation of gas storage risk factors, the paper has established risk analytical hierarchy process of three accidents, destruction, leakage and surface settlement of gas storage in layered salt rock. The model has been used to evaluate operation risk condition of Jintan salt rock underground gas storage in Jiangsu Province. And weights distribution of effected by three accidents risk factors and risk grade of gas storage have been determined.

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.

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.

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.

According to the well logging, drilling, and 3D seismic data, we identified the volcanic rock automatically by computer. The recognition system was an image recognition technology based on deep learning algorithm based on seismic data. During the identification process, the 3d seismic data are disassembled into 2d seismic profile by seismic interpretation technique in Dehui Fault Depression of Songliao Basin. And then, we think it was a two-dimensional picture as learning samples, classification of seismic data, establishment of labels, forming a training set. The training set is deeply learned to generate automatic recognition model. Finally, according to the generated automatic identification model, the volcanic rock is realized automatically based on seismic data.

Pollutants such as NOx, HC, CO, and PM emitted by diesel engines will cause serious air pollution. In order to reduce the exhaust emissions of diesel engines, there are mainly DOC, DPF, SCR, AOC, etc. for the after-treatment technology of the engine. Therefore, the use of integrated aftertreatment systems has become a necessary choice. At present, the layout schemes of integrated aftertreatment systems for diesel engines mainly include DOC + DPF + SCR + AOC, DOC + SCR + DPF + AOC, DOC + CDPF + SCR + AOC, DOC + SCR + DPF + AOC, etc. When processing the system, each sub-aftertreatment system will generate a mutual coupling effect. This coupling interference may promote the system's conversion effect to the pollutants, and it may also weaken the system's conversion effect on the pollutants. The catalytic conversion characteristics of the integrated aftertreatment system are closely related to exhaust parameters and layout schemes. In this paper, simulation methods are used to compare and study the effects of the above four integrated post-treatment systems on the catalytic conversion characteristics of various pollutants under different exhaust parameters.

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.

People have attached increasing importance to the heat generated by power in power electronics during the production process in the field of industrial production at home as China's science and technology rapidly makes progress in recent years. The operation of power electronic devices, due to the effects of resistance and voltage in the circuit, generates a certain amount of heat that will have a certain impact on the operation process of the entire power system. This essay, first and foremost, analyzes the heat circuit and heat group that cause power electronic devices to generate heat, and then the heat dissipation design of power electronic devices. Finally, detailed analysis on the current cooling methods and cooling effects commonly used in power electronic devices are made in accordance with the real conditions.

The marine hydrographic measurement system is used to complete the information measurement system of seabed topography, sea water sound velocity profile, flow velocity, flow direction profile, pressure and so on. In this paper, a marine hydrographic measurement system is described.

Flavonoids were extracted from Salvia plebeian by the microwave method, the process was optimized by Response Surface Methodology. On the basis of single factor experiment, ethanol concentration, microwave power, extraction time, material to liquid ratio were selected as independent variables, and the extraction content of homoplantaginin was selected as response value. The optimum extraction conditions of flavonoids from S. plebeian were determined by Box-Behnken response surface analysis. The optimum extraction conditions were that the ethanol concentration was 56%, the ratio of material to liquid was 1:30 g/mL, the extraction time was 5 minutes, the extraction power was 560 W, and the extraction content of flavonoids was 2.38 mg/g.

The difference from the predicted value was 0.021%, which was not much different from the predicted value of the model, which fully verified the reliability of the model. The extraction parameters obtained by response surface method were accurate and reliable, and the extraction process was reasonable and feasible.

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.

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.

The application of distributed power in the system has changed many characteristics of the traditional distribution network. Based on the consideration of the randomness of the load and the fluctuation and randomness of the output of the distributed generation, a new reconfiguration model of the distribution network with microgrid is established in this paper. Dynamic reconstruction is not a simple superposition of reconstructions in sub-periods. The influence of the number of switching operations on the operation mode between adjacent sub-periods and the overall optimality of the objective function must also be considered. The mathematical probability models of distributed generations and load are constructed in this paper. The dynamic reconfiguration is completed on the basis of probabilistic power flow. The objective function is calculated by stochastic power flow. The optimization algorithm is applied to the reconstruction process. The simulation results verify the effectiveness of the proposed model and algorithm in dynamic reconstruction.

In recent years, an increasing number of consumers have bought glass shower enclosures for their homes as their living standards continue to rise. However, despite the convenience the product has to offer, incidents of exploding glass shower enclosures have been arousing wider concerns among the public. This paper is intended to conduct a comprehensive assessment on the explosion risk of glass shower enclosure products based on the Dempster-Shafer (D-S) evidence theory by establishing a glass shower enclosure explosion risk system, so as to provide a reference for reducing the safety risk of glass shower enclosure products.

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.

Environmental improvements and deteriorations are more reflected in a systematically comprehensive issue related to economic production, consumption, energy use and environmental change. To fathom how to effectively control environmental pollution in China's economic growth process. the article discusses the construction of indicators that takes environmental pollution into economic construction in existing research and points out the imperfection of the environmental efficiency results of various regions in China calculated by these indicators in the existing research as well as proposes that researchers should arise from the perspective of the consumer and recognize the inevitable uncertainty of the emission inventory list when concerning regional environmental efficiency.

Taking Xing A Block of Songliao Basin as an example, based on the core data of closed core wells, the sedimentary characteristics and genetic mechanism of its lithofacies are analyzed. It is considered that there are four types of core lithofacies developed in the study area, which are medium fine sandstone facies, siltstone facies, muddy silt facies and mudstone facies. Based on the crossplot recognition technology, the logging quantitative division standard of lithofacies is determined, and the quantitative interpretation chart of lithofacies is established. According to the laboratory analysis and test data, the reservoir quality characteristics of various lithofacies are summarized. The medium fine sandstone facies and siltstone facies are the main reservoirs in the study area with good physical and oil-bearing properties and high oil displacement efficiency; the physical and oil-bearing properties of argillaceous siltstone are poor and the oil displacement efficiency is low; in siltstone and argillaceous siltstone, the degree of water flooding is low and the remaining oil is relatively rich.

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.

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.

As the Xingbei Development Zone gradually goes into the extra high water cut stage, the difficulty of residual oil tapping is becoming harder and harder. Heterogeneity not only controls the injection agent's sweep coefficient, but also controls the injection displacement efficiency, which is the key factor affecting the formation and distribution of residual oil.

Characterization of reservoir macroscopic heterogeneity by parameters such as sedimentary microfacies, oil layer structure, permeability, porosity and net thickness ratio. The heterogeneous comprehensive index obtained by the wave superposition method can not only quantitatively evaluate reservoir heterogeneity, but also explain the distribution characteristics of the residual oil.

Using this method to fit the eastern part of a district of Xingbei Oilfield, The obtained heterogeneous composite index (IRH) distribution map is compared with the reservoir numerical simulation residual oil saturation map, and the correlation between the two is good. Statistically fit the production of new wells in the simulated area, wells with heterogeneous composite index between 0.55 and 0.75 have higher cumulative oil production, average daily oil production, and the water content is 2-5 percent lower than the average. According to the comprehensive analysis, the remaining oil enrichment area is in the I_RH [0.55, 0.75] region. Guided by this method, we repart Well B1; let free its S II 8 accompanying water blocking layer, so as to strengthen liquid supply to Well B2 and Well B3, which are rich in residual oil through this method. The production plan proves to be effective, Well B2's daily oil production increases by 1.5t, and Well B3's daily oil production increases by 1.2t. Till now, the accumulated increasing oil production has up to 1324t, which equals to economic benefits of 3840,000 RMB.

Through quantitative characterization of reservoir heterogeneity, we find that the remaining oil enrichment zone is mostly located in the I_RH [0.55, 0.75] region, which has important guiding significance for the future development.

PVC ecological wood is applied to the load-bearing wall structure of building engineering, it is necessary to design the wall structure to meet the bearing capacity requirements. According to the requirement of energy saving, this paper designs the composite wall of low-rise residential application of light steel structure in cold area, and carries on the finite element simulation analysis under the horizontal load, which provides the theoretical basis for the application of PVC ecological wood composite wall.

Haloxylon ammodendron is one of the dominant characterizations of groups in Qaidam Basin. The salinity effects on H. ammodendron was determined by evaluating photosynthetic characteristic and seed germination feature responses in saline conditions in this paper. The reduction of Pn was corresponded to the decreasing Gs in the afternoon, when there was a slight increase in WUE corresponded to Pn and Tr during 15:00 to 17: 00p.m in the field trails. There was a delay in Pn and Tr to reach the postmeridian peak under 2% and 3% NaCl, while the daily mean values of WUE under 2% and 3% NaCl were higher than the 0% NaCl control. H. ammodendron seeds were found retaining 72% of germination rate under salinity degree high up to 3.51% saline solution. The values of GP, GE, GI and VI decreased evidently under 0.72% saline solution, whereas the reduction was indistinctive from 0.72% up to 2.14% saline solution without salt injury below 2.14% saline solution. Although the plant showed a slight sensibility to light salinity, H. ammodendron retained a certain potential of seed germination and seedling growth under salinity stress.

Power battery is an important part of electric bus. With the standardization of electric bus manufacturing, a standardized power battery has been formed. In this paper, the standardized power battery box chassis of electric bus is taken as the research object, and the finite element analysis method is used to simulate its mechanical characteristics. The results show that the maximum equivalent stress of the battery box chassis is 50.7mpa, which is far less than the allowable stress value of the material. The first six modes have a vibration frequency range of 36.76-246.12Hz, and the frequency distribution of the modes is relatively scattered.

By studying the influence of the content of activator on the strength of alkali-slag-oil shale ash cement under the condition of standard curing after 3 days of thermal excitation at 50°C, the problem that the cement's 28-day compressive strength is low under the standard curing conditions was solved. The results indicate that the strength of the cement can exceed 42.5MPa, when the amount of admixture of the water glass with 1.10 modulus is no more than 40 ml; or when the density of NaOH is no less than 3.15mol/L, the amount of admixture of NaOH is no less than 5%.

The development of social economy accelerates the process of urbanization and makes the population denser. Once the earthquake happens, it will cause serious harm to people. The building constructed by traditional methods cannot meet the seismic requirements. Based on Kriging optimization theory, this paper studies the method of improving the seismic reliability of building structure, introduces the principle of the method, and establishes the seismic model of building structure. Compared with the traditional methods, it can be found that the optimized seismic method can effectively improve the seismic capacity of the building structure, provide a better guarantee for the safety of citizens' property and life, and has a very good use value.

The design method of the pile end plate of double jacked-in spun pile tip is described. The finite element analysis is used to simulate the stress state of pile sinking and loading test. Two models to stimulate the actual stress of the pile end plate. According to the analysis results, the existing design method of pile end plate is optimized.

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.

The ABAQUS analysis software is used to establish a finite element theoretical analysis model of the thin-walled steel beam-column composite node under the ISO-834 fire temperature rise curve. Through the parameter-analysis of the temperature-time curve of the thin-walled steel beam-column node, the influence of material parameters on the fire resistance of the structure is obtained.

The cantilever structure will produce a large dynamic response under the vertical load, which will cause the user's discomfort. Therefore, the vibration characteristics of the structure caused by the vertical load are an important part of the comfort design of the cantilever structure in the normal use limit state. This article takes the vertical displacement of a cantilevered balcony slab on one side of a project under load as an example, and builds a model in the nonlinear finite element software to calculate the structural displacement and the factors of the cantilever length and the tensile reinforcement, and the corresponding comfort evaluation is carried out, which provides a reference for the vibration comfort evaluation of the house cantilever structure.

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.

Prestressed concrete pipe piles, due to the long body length, are easily deformed during the construction, transportation and installation, and such deformation will affect the utilization of pipe piles and even result in broken piles. In order to ensure the construction safety of prestressed pipe piles, it's necessary to study the flexural performance and deformation of pipe piles under loads generated from the utilization stage. This paper, by virtue of ABAQUS, analyzes the contribution of wall thickness of prestressed concrete pipe piles, the diameter of spiral bar and diameter of prestressed reinforcement to the flexural deformation of pipe piles, and the corresponding results can serve as the theoretical basis of designing and laying prestressed concrete pipe piles.

In winter heating period, in order to meet the heating requirements, the cogeneration unit adopts the operation mode of "heat fixed power". The peak regulation capacity is poor, and a large amount of wind is abandoned in the period of low load. In view of this problem, the characteristics of cogeneration units are analyzed, and relevant research results at home and abroad are summarized. This paper analyzes the scheme of increasing electric boiler, heat pump and heat storage from the aspects of increasing thermoelectric coupling equipment and power grid lean dispatching, puts forward the method of power grid lean dispatching of thermoelectric cogeneration units, and expounds the practical application of thermoelectric coupling constraint decoupling at home and abroad. At last, the next work of power side and power grid dispatching side is pointed out.

In the economic dispatch and optimal operation of power system, it is necessary and effective to consider the correlation among heat load, power load and wind power output to formulate a reasonable dispatch plan or to evaluate the reliability of the system. Therefore, based on the theory of Copula correlation analysis, a multivariate Copula analysis toolbox (MvCAT) is proposed to infer Copula parameters and estimate potential uncertainties. Firstly, the mixed evolution Markov Chain Monte Carlo (MCMC) method in Bayes framework calculates the posterior distribution of Copula parameters, evaluate their uncertainties relative to fitting, and then select the appropriate Copula function by goodness-of-fit test. Finally, a the typical daily data of a province as samples for analysis, proposed method solves the limitation that the local optimization method often falls into the local minimum, and quantitative evaluation of the correlation between the response variables and the uncertainty associated with the length of the recorded data is essential for multivariate frequency analysis.

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers.

The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction.

Retraction published: 23 September 2022