The Harmonics control of any inverters can be decided by the PWM incorporated for the switches. In recent years the carrier and reference modification based research is going on the inverter field. This paper suggests that the alteration of carriers and references of the three phase voltage source inverter enhance the ability to decrease the harmonic content.This enhanced realization deals with the

For the study of corporate social responsibility, the most fundamental problem is the relationship between Social Responsibility and Financial Performance on enterprises, which is related to whether the enterprise should bear social responsibility directly. For a long time, state-owned enterprises of China as the backbone of social responsibility, to shoulder a large number of policy burden. When corporates’

Physical education (P.E.) and physical activity are the central and practicable aspects of emotional, mental, and physical well-being. They are crucial determinants of health outcomes within an individuals’ lifespan. P.E. has long-established been the elementary role played by schools in promoting physical activity, which in turn has brought with its numerous benefits as far as health is concerned

The main goal of music appreciation teaching is to cultivate students' correct aesthetics and teach them to acquire basic knowledge about music history and musical expression methods. However, traditional music teaching is often limited in conditions and abstract in content, making it difficult to achieve this teaching goal. For the purpose of achieving the teaching goal and effect, this paper mainly

Nowadays, China has got into the era of big-data. In the background of big-data information era, the management of college students in China has undergone certain changes, and the trend of student management informationization is obvious. Universities are momentous places for cultivating talents. The student management work of universities directly affects the quality of talent training and affects

Cultivating students with innovative ability is not only the internal requirement of realizing China's modernization, but also an important embodiment of improving the quality of higher education. To improve the level of higher education, deepen the reform of university education system, and cultivate students with innovative ability are the core and basic points of innovation and development of colleges

This paper presents a magnetically controlled series compensation-fault current limiter (MCSC-FCL) which is composed of a magnetically controlled reactor (MCR) and a compensation capacitor. The device is improved from the traditional thyristor-controlled series compensation (TCSC), which has the characteristics of small output harmonics and simple control. The traditional saturated iron-core reactor

Various modern learning modes also promote the wide application of online learning. In order to solve the current situation of lack of educational resources in Colleges and universities (CAU), we need to use innovative learning theory, cutting-edge teaching technology and tools, and integrate multimedia education into the existing mixed teaching to form a new teaching mode. This paper takes the teaching

Objective To explore the structure of college students’ optimism and develop a questionnaire. Methods The initial items of the questionnaire are formed by interview, open questionnaire and document retrieval. On the basis of forecast, 692 valid questionnaires are obtained from the subjects with the self-designed questionnaire. The life orientation questionnaire is used to test the validity of the criterion

The development and promotion of tourism planning education is the basis and premise of tourism management education.Based on the teaching objectives and career direction of Tourism Management Major in higher vocational colleges, the teaching innovation of tourism planning course is studied. To interpret and evaluate the planning as the goal, based on a large number of complete case texts, explore

The article presents the possibility of conducting remote laboratory classes in subjects that require the use of specialized equipment (which the student does not have at home). The article is based on the example of classes in microcontrollers programming and electronic circuits. The methods with the use of simulation programs and an innovative approach enabling work on real equipment are presented

In the process of urbanization, the city’s population is growing and the area is also expanding, and the commercial pattern of “multi center, multi business circle” gradually appears. The competition and coordinated development between business circles has become a subject that we must pay attention to. In this paper, by reconstructing the evaluation index system of business district competition, introducing

The use of computer technology for three-dimensional (3 D) reconstruction is one of the important development directions of social production. The purpose is to find a new method that can be used in traditional handicraft design, and to explore the application of 3 D reconstruction technology in it. Based on the description and analysis of 3 D reconstruction technology, the 3 D reconstruction algorithm

With the development of the new curriculum reform in China, the traditional college English teaching model is no longer suitable for the needs of college English teaching tasks in the new era. The multimodal literacy teaching in the college English multimodal teaching mode is to help students internalize their English language skills after learning and understanding English knowledge, thus improving

The progress of science and technology and the development of information technology have accelerated the speed of information dissemination and cultural transformation. In the context of multiculturalism, if we want to cultivate talents who can communicate across cultures, domestic English teaching needs further reforms. The unified implementation of English teaching in China has lasted for decades

Sang language is an important manifestation of Sang subculture which refers to a cultural trend formed by a large scale of young people born in the 90s and 00s expressing or showing their frustration in various forms on social platforms. In recent years, Sang subculture has evolved from a form of network subculture that initially aroused the inner resonance and self-deprecation of middle school and

Under the background of the continuous impact of new media, with the deepening of art education reform, more creative teaching thinking and teaching methods are integrated into the art design education classroom in universities. In the continuous progress of art design major, how to change the traditional art education classroom and make the teaching more innovative has become one of the research contents

GIS is widely used in the fields of high voltage, ultra-high voltage and ultra-high voltage. The structure of GIS is compact, the floor area is small, the configuration is flexible and the reliability is high. Moreover, it has strong security and strong environmental adaptability. However, the electric field strength in GIS is very strong, once there are some defects in the equipment, partial discharge

In this study, the questionnaire survey, diversified classroom teaching, and multivariate evaluation are carried out on college students of non-English majors based on the Roche multiway tree clustering method. The SPSS statistical software is used for statistical analysis. The results show that Roche multiway tree cluster distribution of non-English major college students is at a medium level. There

Under the circumstance of COVID-19, online education has become an inevitable choice and a mainstream form of education in various countries. Intelligent Tutoring Systems ( ITSs ) are a critical category of a carrier of online education which refers to using Artificial Intelligence Technology ( AIT ) to realize distance teaching and learning through integrating multiple resources, assist teachers to

In this paper, a high-efficiency and compact wireless power transfer (WPT) receiving antenna using an flexible printed circuits board (FPCB) with high-Q factor is proposed. The proposed high-efficiency and compact WPT receiving antenna consists of a spiral structure, a lumped element and via through the ground structure. In this paper, in order to design a miniaturized high-efficiency WPT receiving

The purpose of this study is to study in depth the effective mechanism of China's vocational education reform to promote the poverty alleviation of precision industries. The purpose of this research is to deeply study the effective mechanism of my country's vocational education reform to promote precision industry poverty alleviation, and investigate the financial aid for poor students and the number

This paper will analyze by analogy, the internal relationship between different design majors is clarified on the basis of discussing the characteristics of design disciplines, and then the talent cultivation direction of design education is discussed. From the point of view of the characteristics of design as a subject, the discipline of design is comprehensive and application-oriented. It is comprehensive

Nowadays, legal education has received more and more attention from the society. This article takes legal education and teaching as the research object, and uses a literature survey method to read and analyze a lot of related documents. According to research needs, through the research and summary of the content of the literature, the views, thoughts, methods and relevant opinions on the reform of

Machine learning models enable data-based decision-making in many areas and have attracted extensive attention. By testing the factors that influence the adoption of machine learning models, this study expands the scope of machine learning models in information technology adoption research. Based on the machine learning background and Technology Acceptance Model, this study integrates the necessary

Today, with the increasingly rapid economic development and diversified consumer demands, the printing and publishing industry is also facing challenges and opportunities. Under this background, the emerging digital printing technology, which USES modern digital system to transmit graphic information to digital printing machine through network, has gradually become the core technical content of the

The uniform magnetic field is widely used in sensors and other laboratory devices. The four-coil configuration has the advantage of open space and good uniformity. Traditional schemes include Lee-Whiting, Tetracoil, Braunbeck, etc. The first two schemes have rounding errors of coil turns. The Braunbeck configuration avoids rounding errors, but the structure is solidified and cannot meet the requirements

In the era of economic globalization, the US and China are the two largest economies in the world and play leading roles in the allocation of global resources. However, under the guidance of the “America First” principle, its economic policies have involved the domestic manufacturing backflow and international trade protectionism, which has led to the rise of “unilateralism” and “local protectionism”

Transit-oriented development zones (TODs) are mixed-use residential or commercial areas that aim to maximize the use of public transportation, and often include functions that encourage public transportation. This paper proposes establishes an equilibrium model for designing the rail transit corridor considering the development of TOD project. The proposed model features the choice of living place

Stock market performance prediction has always been a hit research topic and is attractive due to its strong potential to generate financial profit. Being able to predict future stock price in a relatively accurate way forms a significant task of stock market analysis. Different mechanisms from fundamental analysis to statistical modeling have been deployed to study stock market performance and various

With economic globalization and the informatization of social life, English has become a language extensively used around the globe. The research on the evaluation of English teaching quality is of crucial practical significance and theoretical value. Hence, student evaluation form for the college English classroom teaching quality that has been evaluated and has good reliability is used in this paper

In this paper, we prove the expression and the existence of a class of nonlinear impulsive fractional order differential equations with integral boundary conditions. The unique solution of the differential equations by Green’s function is given. By using Schauder fixed point theorem and Leray-Schauder fixed point theorem, several sufficient conditions for the existence and uniqueness results are established

Given that the traditional methods cannot perform clustering analysis on the Internet financial credit reporting directly and effectively, a kind of precise clustering analysis of internet financial credit reporting dependent on multidimensional attribute sparse large data is proposed. By measuring the overall distance between Internet financial credit reporting through the sparse large data with multidimensional

This paper constructs a threshold regression model to empirically test the non-linear relationship between rural human capital and agricultural green total factor productivity (AGTFP) with provincial panel data during 1993–2018. The results show that there is a significant double threshold effect between rural human capital and AGTFP under different levels of agricultural material capital (AF)and agricultural

Whether the apprentice is competent for the job and produces performance for the organization is the key index to test the quality of apprenticeship education. Based on competency theory, this paper investigates the influence of competency dimensions and work meaning on performance. Through the competency questionnaire analysis of 224 shop managers in apprentice project enterprises, it is found that:

With the application of CFD technology in the field of sports engineering research, there are many research results on ball sports such as football and table tennis, but less research on rhythmic gymnastics equipment for difficult and beautiful sports. This paper uses ADAMS dynamic analysis software to carry out CFD simulation test on ball exercise equipment, and explore the influence of different

Sports lottery revenue is not only an important part of the regional and national sports industry, but also a source of public funds to support the continuous enrichment and improvement of public sports resources. It is a major method to promote the participation of the masses in sports activities and consumption, and to improve health. In this paper, panel data of all provinces in China from 2010

In the context of the current economic globalization, the protection of intangible cultural heritage is of great significance to the protection of traditional culture and cultural independence. We suggest that development should be carried out on the basis of the protection of intangible cultural heritage, but the ultimate purpose of the protection of intangible cultural heritage is to promote the

With the development of the big data era and the opening of translation majors in colleges and universities, translation teaching is gradually receiving attention. However, there are still many problems in the training of translators in colleges and universities in terms of teachers, teaching time and teaching mode. In the context of the era of big data, this article uses questionnaires and data analysis

Objective To investigate the application value of scenario simulation teaching method combined with progressive teaching mode in clinical teaching of orthopedic nursing. Methods 104 nursing interns who were employed in the orthopedics department of our hospital from March 2018 to March 2020 were selected and randomly divided into traditional teaching (TT) group (n = 52) and joint teaching (JT) group

The new curriculum of fine arts is a newly emerging thing in the situation of education reform. There are many facets of traditional art education which should be improved, including the fact that the teacher's classroom teaching is dull, the teaching material is limited, the training mode is single, the “classroom” is understood by the teacher as the normative teaching content instead of a platform

Virtual experiment teaching is an important part of higher education institutions and research institutions. It plays an important role in helping students develop basic experimental research capabilities and innovative experimental research concepts. Mechanical majors focus on the cultivation of students' practical hands-on ability, but the traditional mechanical experimental equipment update iteration

In transmission line, the series compensation is used to improve stability and increases the power transmission capacity. It generates sub synchronous resonance (SSR) at turbine-generator shaft due to the interaction between the series compensation and wind turbine system. To solve this, several methods have been presented. However, these provide less performance during contingency period. Therefore

The guarantee conditions are expected to break the subject standard and teacher standard of the original curriculum reform, focusing on the comprehensive development of students' professional ability and quality, so as to provide some references for higher vocational education curriculum reform. Based on the concept of result-oriented education, this paper expounds the guiding ideology and basic principles

Traffic accidents frequently occur at the nose of highway exit ramps for a variety of reasons. When attempting to take an exit, a driver’s line of sight may be obscured by the curvature or slope of the main expressway, roadside vegetation, traffic signs, and other vehicles traveling alongside. These increase the likelihood of accidents due to inaccurate or poor driver judgement when approaching a highway

Wang Guowei, a famous scholar and thinker in our country, thinks that “aesthetic education harmonizes people's feelings in the process of emotional music education, so as to achieve the perfect domain”, “aesthetic education is also emotional education”. Therefore, in the process of music education, emotional education plays an important role in middle school music teaching, and it is also the highest

In order to study the dynamic influence mechanism of population characteristics on health expenses, the panel data of 31 provinces, autonomous regions and municipalities directly under the Central Government (excluding Hong Kong, Macao and Taiwan) from 2009 to 2016 were used to construct panel smooth transformation model with population characteristics as heterogeneous variables for empirical analysis

Prediction of aerodynamic noise is the key technology for the internal weapon bay of supersonic aircraft. Nonlinear numerical simulation is proposed as a new method to analyze noise recently. The Non-Linear Acoustic Solver (NLAS) is employed to study the cavity noise in supersonic combined with Reynolds-averaged Navier-Stokes (RANS) equation. It is shown by the comparison between the calculated results

The need to evolve an innovative approach that can improve the practical learning outcomes among technical college students necessitated this study. Thus, the present study investigated the effect of innovative pedagogy integration in electrical installation and maintenance works in technical colleges in Enugu and Lagos states of Nigeria. The study adopted a school-based randomised Solomon Four-Group

Research has shown that the world’s population is currently 7.8 billion, out of which 28% are exposed to the online market. Creating a sports management system for basketball teams will thus have a great impact to the approximately 2.2 billion people using the online platforms. Since marketing is important in almost every field, we will be employing it in school sports. School sports assume a significant

Game teaching in physical education has become an effective means to develop students' intelligence, physical strength and basic activity ability in all stages. The quality of game teaching is related to the quality of physical education, which can not be compared with the simple standardized and traditional teaching. With the growth of students' age, it is very necessary to carry out the game teaching

When digital technology reproduces and simulates real scenes, it can realistically multi-dimensionally present and simulate real-life situations. This solves the problem that the design methods that are difficult to avoid in art design teaching are out of touch with the real space environment, and the design concept and function are out of touch. The openness of the teaching knowledge of art design

Analyzing and learning students' behavior states in classroom plays a positive role in understanding and improving the teaching effectiveness. Meanwhile, the application of lightweight network to pattern recognition has become a trend with the development of mobile networks. In order to improve the recognition accuracy of the lightweight network model MobileNetV2 and reduce the computational cost and

The socialization of old residential district management is an inevitable trend of urban development, but the current situation is not optimistic. According to the theory of community conflict, this paper analyzes obstacles of management socialization from four perspectives of environmental factors, opposite relations, power factors and emotional factors, and constructs an analysis system for the socialization

Modern information technology is more and more widely used in school physical education. At the same time, the application of multimedia technology is becoming more and more extensive in education. As a teaching method, multimedia has developed into an important component of modern educational technology and science, and also provides support for teaching reform. The use of multimedia organization

The paper presents an intelligent approach for the comparison of social networks through a cone model by using the fuzzy k-medoids clustering method. It makes use of a geometrical three-dimensional conical model, which astutely represents the user experience views. It uses both the static as well as the dynamic parameters of social networks. In this, we propose an algorithm that investigates which

Software-defined networking (SDN) has the ability to flexibly configure the network and is widely used in various scenarios. In SDN, different applications require the controller to deploy corresponding flow entries to maintain the effectiveness of network. However, the matching field range covered by entries of different applications may overlap, and when actions specified by these overlapping entries

It is of great value to strengthen the comparative study of value in film English teaching. This reflects that “value education” is the core of quality education. The core of intercultural communication is “value distribution,” and “value identity” is identity. The main aspects of learning linguistics. From the perspective of film culture, it is necessary to reduce the “Chinese and English value” of

To study the influence of comprehensive nursing on self-care ability and psychological state of sufferers with coronary heart disease (CHD) after percutaneous coronary intervention (PCI). From August 2017 to June 2019, 79 patients who underwent coronary intervention in the Department of Cardiology medical of our hospital were selected as the research object. 34 subjects who received routine basic nursing

Aerobics has always been an imperative facet in school curricula, right from elementary to higher institutions of learning like colleges and universities. Its importance in physical and mental well-being cannot be overlooked, especially in this information age, where a sizeable subset of the population has adopted a sedentary lifestyle. Unwholesomeness is still evident notwithstanding its introduction