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In order to study the surface ripples caused by outer ring vibration, we took the outer ring raceway and rolling body as the research object of the contact. The surface corrugation of the inner ring or outer ring would cause a periodic change of the distance between the inner and outer ring raceway....

The main factors affecting the increase of the contradictory influence of scientific and technological progress on the life of society and nature, as well as the appearance of inconsistency of unbalanced human needs to the natural cycles of the biosphere are identified. It is shown that the sustainable...

Short term load forecasting is an important basic work for power system planning and scheduling, short term load forecasting method based on SVM is adopted in this paper, through analyze the factors that influence the load forecasting and normalize the factors which influence the load forecasting. Using...

In this paper, steady flow tests for air movement characteristics in cylinder and intake port flow coefficient of a GDI engine were carried out by means of steady flow test bench. Three-dimension numerical simulation model was established with consistent boundary conditions of steady flow tests. Experiment...

Issues of assessing the attractiveness of the Russian stock market for foreign investors seem very interesting and relevant. So, at present, Russian and foreign researchers have examined the features of the stock market and the factors affecting its attractiveness, methods and indicators for assessing...

With the deepening of china’s higher education reform, the importance of humanistic quality education gradually appears, the university wants to train all-round development of high-quality personnel, it can not be separated from the humanities quality education. General Secretary Xi Jinping pointed out...

This study examines the ideology behind thrift shopping, the attitude and factors driving the Indian customer’s and their intention to buy second-hand fashion items. Data in this research is collected via a poll on Instagram and articles available on the internet. The influence of the covid 19 pandemic...

Numeracy literacy is the ability to use basic mathematical concepts to solve various problems that are often found in everyday life related to science. This study aims to analyze the numeracy literacy achievement of junior high school students on the material of motion and force in bull racing context...

Learning community was made a tentative application in Breeding Science of Horticultural Plant paper teaching. And teaching reflection was summarized including concept of learning community, education feature, practice effects and teaching experience.

Firstly, based on the theories and methods of acoustic intensity measurement, the surface radiation noise of the rear driving axle of minibus was tested in the bench experiment. With the analysis of the experiment data, sound power was calculated to plot the noise distribution of the rear driving axle....

In this study, Ansys was used to build a detailed finite element model of the steel latticed arch. The multi-scale model was adopted to analyze the behavior of the steel latticed arch and the finite element analysis results were analyzed comparing with the element beam model. The conclusion can be obtained...

Switching power supply is on the basis of the development of modern electronic science and technology, using the power switch tube, by controlling the switching time (duty cycle) to make the output voltage stability of the high frequency power supply, it includes two parts of the main circuit and PWM...

With the advent of the new media era, which is characterized by information, digitalization and networking, it is the opportunity for the ideological and political theory course in Colleges and universities,and it also challenges the traditional teaching mode of Ideological and political education.To...

With the rapid development of internet, all kinds of information increases exponentially. It is different for users to find their requisite information because of the widely distributed information of internet. In ordered to provide timely, conveniently and efficiently to farmers the interested agricultural...

With the advent of the knowledge economy, companies increasingly strong demand for talent, especially with import and export trade practice the theoretical knowledge but also has hands-on skills medium professionals’ increasingly strong demand. However, China's vocational education and management by...

Neural network algorithm is applied to image adaptive enhancement problem to determine the processing parameters in this paper. Based on the analysis of image enhancement theory, a BP neural network algorithm which contains forward propagation of information and back propagation of error is introduced...

With the improvement of social and economic level and the development of urbanization, the function of the community has been continuously improved, and the community has become the last kilometer for the government to contact the masses. At present, China has formed a grid management community model...

Listening is the basic language ability for foreign language learning. It is closely related to other language skills like speaking, reading and writing. It is the vital tool for communication. For some students, especially the freshmen, listening ability is their big problem. This paper mainly introduces...

The linguistic taboo, as a part of language, is prohibited to be violated according to the linguistics. With the development of human society, it evolves new functions. The thesis, on the basis of the functional linguistics, analyzes the interpersonal function of linguistic taboos and reveals that the...

A driving simulator was set up for analyzing driver’s reaction time when driving on urban road, including reaction perception time, decision-making time and operation time. 28 participate drivers were recruited for the simulated driving test,Results show that the best fitting relationship between driver’s...

At the 19th CPC National Congress, Xi Jinping pointed out that the new principal social contradiction in China have been evolved into the contradiction between the people’s ever-growing need for a better life and the unbalanced and inadequate development. At present, the regional economic development...

According to the characteristics of Three Gorges reservoir ecosystem in Chongqing of China, the index for potential capacity of ecological environment is amended for early warning evaluating the ecological security in 22 counties of the Three Gorges reservoir. Capacity of ecological environment was ranked...

US and China, as representatives of world greatest established powers and most promising rising powers respectively, have always been at the centre of the current global political arena. This article aims to give a holistic analysis of how great power competition between the US and China is impacting...

In the process of learning Chinese as a foreign language, students from different countries make different semantic errors because of the inevitable negative interlingual transfer. To better solve this problem, deep understanding on cross-linguistic semasiological differences is required. In this study,...

The interest in entrepreneurship in Indonesia is very low, which includes the quality of the role of universities is not good, allegedly as a result of education and implementation that is not optimal, resulting in a lack of interest in student entrepreneurship. This study aims to empirically observe...

Despite the huge impact of coronavirus disease on international trade in 2019, the bilateral trade between China and ASEAN bucked the trend due to the help of cross-border e-commerce. This paper will analyze the development status of cross-border e-commerce between China and ASEAN, combined with the...

Industrial robot has become essential important equipment in advanced manufa- cturing industry. As one of the practical current robot technology research, industrial robotic vision-guided technology lays the foundation for application of the industrial robots in the smart line. Visual guidance use image...

A graded composite strip with elastic variation in span direction is investigated in the paper. So far, studies about materials variation in span direction are rare. Here, the strip is treated as a plane problem, and the modulus varies exponentially with span direction, and Poisson ratio is constant....

Theoretical line loss calculation is the basis for line loss analysis, and reduce the time of calculating the theoretical line loss can improve the efficiency of the line loss analysis.This paper,aiming at the wasted issue in power transmission,presents a theoretical line loss calculation framework that...

During the development of Guangxi "Twelve Five", five-years vocational students will be one of the major institutions of higher vocational students in Guangxi. The students has changed, it’s means that the traditional teaching methods would be reformed and adjusted. In this paper, the core problem to...

Due to limitation of the optical fiber communication network coverage, the wireless technology is usually adapted to meet the requirement of applications in the smart grid transmission and distribution. In this paper, we study the electrical communication with integrated access technology to establish...

In recent years, with the continuous expansion of the transmission network, power grid operation maintenance line mileage rapid growth and power network operation maintenance relatively insufficient number of personnel between the contradictions appear gradually, is bound to promote the power grid operation...

The purpose of designing the system is to make the users manage their own sales network only through the internet, change traditional business model and achieve online sales management. The system adopted JSP to write online car sales management system, used Tomcat as the JSP server, connected the system...

This study discusses how pre-service teachers can develop critical thinking skills in making multimedia-based learning media. This is caused by the paradigm of higher education competence which currently requires the integration of critical thinking skills, from various perspectives and cultures in the...

Nowadays, with the application and popularization of 5G technology, the efficiency and convenience of mobile phones have made people live with the indispensable part of their lives. While the mobile phone market is experiencing rapid development, we should also continue to reflect, so as not to repeat...

This paper focus on the GNSS(Global Navigation Satellite System) signal processing based on PMF(Partial Matching Filter)-FFT(Fast Fourier Transform), and a dynamic analysis method of high dynamic GNSS signal is proposed. PMF-FFT has a wide range of applications in GNSS signal acquisition, but no one...

With depth increasing, mining environment of underground metal mine become severely, for the purpose of obtaining higher efficiency and safety in mining process, based on the framework of EPC system network to establish a completed efficient intelligent system for underground metal mine exploitation...

The process of rapid social and economic development, Chinese urbanization and industrialization is also developing rapidly which requires a lot of land as a support, whereby farmers will lose their land and become society obtained a special group, they are called landless farmers. Land has always been...

An efficient adsorbent for Cu (II) removal from aqueous solution was synthesized by grafting amino group onto jute fiber. The fiber was chemically modified by two steps, loading of epoxy chloropropane and triethylenetetramine. Properties of the modified jute such as surface chemical structure, tensile...

A triaxial compression test was carried out to investigate the effect of ultra high molecular weight polyethylene (UHMWPE) on concrete’s behavior, in which four kinds of fiber volume fraction (0%, 0.3%, 0.5%, 1.0%) and five kinds of confining pressure (0MPa, 3MPa, 6MPa, 12MPa, 18MPa) were designed. The...

The vibration analysis model of slab mill is established in this paper according with the multi-body dynamics theory. The relationship between the vibration displacement and time of the roller in different conditions is obtained through simulation analysis. Under different damping conditions, the vibration...

Based on the analysis of transverse road header cutting head and toothholder, using VC++ and UG provide UG/OPEN API, Manuscript and UI Styler joint second development, obtained parametric design program of Cutting Head of Road header and toothholder. Use the program, intuitively understand to different...

In recent years, some airlines have used "low-cost brands" to broadcast skin care products to attract consumers to pay, but consumers still disagree about the products of airlines. In order to understand the main driving force of the purchase decision of skin care products consumers in the...

Cross-cultural comparison and dialogue is a new way of mutual exchange, mutual reference, and joint development of Eastern and Western music cultures in the world, serving as an important prerequisite for the development of various musical cultures in China. This paper makes a comparative analysis of...

The invention of computers in the 20th century was one of the greatest innovations in human history. The incorporation of computers with the Internet then has given rise to even more prominent changes in almost all aspects of human society. This article is based on the historical and ongoing impacts...

DEFORM-3D is a finite element method (FEM) software that can perfectly simulate cutting process of materials. In order to research the cutting process of titanium, using DEFORM-3D software as a platform, through FEM on modeling and simulation to the cutting of TC4, the influence rule of cutting depth...

Multimedia technology is to point to by computer to text, data, graphics, images, animation, sound and other media information integrated processing, the user can through a variety of sensory real-time information interaction with the computer technology. Japanese multimedia hearing system is designed...

Big Data is the resource for people to obtain new cogitation and create initiative and also a method to change business markets, organizations or institutions and the relationship between the government and citizens. In the Big Data era, the data bank has a great impact on the inter-disciplinary English...

This paper presents a novel approach, called GOM, for modeling and implementing the architecture of content publish/subscribe applications using a graph-oriented model(GOM). The GOM constitutes a self-contained piece of content that indivisibly unites three of the content's aspects, namely the content...

Concerning the problems of high time complexity and topological inconsistency existed in vector map simplification, a multi-resolution model of curve for progressive transmission is proposed in this paper. By using pre-stored vertex deviation to simplify curve and using an optimized monotone chain intersection...