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Cognitive radio (CR) technology provides a new approach to solve the problem of wireless spectrum resource scarcity by allowing secondary users (SUs) to access the licensed spectrum in case that SUs do not interfere primary user (PU). One of the most challenging tasks in CR is spectrum sensing. This...

Non administrative information system refers to the informal and unofficial information transmission system which includes mass media, academic community and citizen. It has changed the mode of information in the traditional bureaucracy system, and formed the public space of public opinion expression....

This work proposed a blind source separation method by RBF neural network optimized by GA, which can improve the separation performance under low SNR condition. The center value and the width value of RBF can be determined by k-mean clustering algorithm and the cost function is set by maximum entropy....

Additional displacement fields based on internal parameters were used widely in finite element method to increase the order and complementary of displacement polynomials, thus accuracy and insensitivity to mesh distortion of elements can be improved significantly. To ensure that the element could pass...

Concrete arch dam is the main structure of water conservancy projects which have the advantages of a artistic shape of structure and good mechanical properties, and it has been widely used in water conservancy projects. Banjiang Reservoir is located in Zijiang River two tributaries of Dongkou County,...

The researchers of electronic commerce systems who have innovative sense and high-skilled ability are required by not only the modern science and technology revolution, but also the economical and social development of a nation. The paper researches on the generated path of electronic commerce system...

The paper presents the design and implementation of Online-test System Based on J2EE, the application of B/S and C/S model to a combination of design, and divides the system based on module. Then the paper provides the design of data program, followed by a discussion of the ap-proach of automatically...

The drug allocation model is set up to optimize the distribution of drugs after the outbreak. Considering that the severity of the epidemic areas are different and their economic level is low, we establish the network of service stations and the epidemic stricken areas. Then the dynamic drug distribution...

The time synchronization in the virtual radio system is determined as one of thorny technical problems. Especially in TT&C (Telemetry Tracking and Command) system, it requires incredible precision with time. A novel method for time synchronization by high-precision in a unified virtual radio model specially...

A three-dimensional stochastic simulation was developed to simulate growing process of particles deposit on a single fiber in Kuwarbara cell due to the collection mechanisms from inertial impaction and interception. The distributions of size of particle dendrites were calculated to quantificationally...

In this paper, the economic cycle theory is briefly reviewed. The causes of economic cycles in capitalist countries and China's economic cycle are analyzed. We think that China's economic cycle of the planned economy era is a cycle on the work of the government, and now the economic cycle is fusion cycle...

In China, the sports exercise of college students is generally learned in sports class and mainly dominated by amateur workout, which is in a disordered state. This paper introduces the supporting system of aid decision making on sports training of college students established by adopting data warehousing...

The safe and reliable operation of power system has been severely threatened by frequent DC magnetic bias when the applied DC transmission system is operating in a single-polar ground loop mode or a bipolar asymmetric mode. Based on SQL SERVER 2012, this paper sets up an AC-grid DC network information...

This article was performed within the Russian State tasks MSUCE project "Methodology of ideas, design and verification of energy-efficient engineering systems conventionally abstract objects (on formal models of buildings)". The article describes the algorithm verification scenario of the energy balance...

Festival sports, as an important part of the festival, are concentrated expression of the national culture. Although the time of the festival is short, it is very important to the society and the influence of the people. In the context of the sports industry development, this article takes the Yunnan...

The article deals with the problem of increasing threats to the spiritual roots of the individual and society during the globalization. The research methodology is a socio-philosophical analysis of the spiritual and moral development of the individual which serves as a factor of the safe existence of...

In this paper, urban traffic accessibility is regarded as the external manifestation of the dynamic process of the coupling of several traffic systems. Firstly, the relationship between a subway system, a bus rapid transit system, and a common bus system are analyzed, as well as the relationship between...

In the economic law system, competition law constitutes an important part of them. As part of the competition law, the fundamental purpose of the anti-unfair competition law is regulating the market behaviour. Therefore, the implementation of competition law is directly related to the overall competition...

With the progress and development of society, the traditional teaching model has been unable to adapt to the needs of the new period, the birth and development of new media has provided a new opportunity for the College English teaching method innovation, which make the classroom teaching full of new...

Classification of synthetic radar images (SAR) is an emerging area especially with the advent of state of the art satellite image techniques. An SVM based texture analysis and classification utilizing the PCA for dimensionality reduction of SAR images has been presented in this paper to categorize the...

In this paper, we conduct research on the image semantic understanding pattern based on the sparse coding and wavelet theory. From the perspective of image understanding, according to the different weights of spatial information to give false points pixels, make the false points of pixels in different...

The traditional vertical axis wind turbine will produce a part of mechanical loss because of the transmission system between the wind wheel and generator, resulting the reduction of the wind energy utilization rate of the wind turbine. This paper proposes a new design method for off-grid small vertical...

In the process of the high-power fiber laser welding, the weld pool feature is related to welding quality. Here, a near infrared image acquisition system was used to acquire the weld pool information. After acquiring the weld pool regional image, the methods such as filtering image denoising, image enhancement,...

The article discusses opposition to extremism in modern Russia. We have to admit the fact that, along with the positive characteristics of the younger generation, alarming symptoms of social and political immaturity began to appear; loss of national cultural identity; individualism and egocentrism; deviant...

Information Literacy Skills (ILS) is an essential component in the university in preparing generations to face global challenges. This study aims to interpret the ILS in terms of the average Grade Point Average (GPA) and gender. Participants in this Prospective Science Education Teachers (PSET) in East...

This research is concerned with Hero and villain presentation in the Spiderman movie by Sam Raimi, the intrinsic elements on the Spiderman movie by Sam Raimi The implication on learning and teaching of hero and villain are delivered the Spiderman movie by Sam Raimi. The descriptive qualitative method...

China's junior middle school "Science" textbook of Zhejiang Education edition has a great feature: many illustrations are carefully selected, and the pictures and texts are truly combined. Illustrations can clearly express rich scientific knowledge through intuitive images. If illustrations...

This paper introduces the features and functions of NOW Corpus, analyzes the present situation and problems of medical college English teaching, discusses the possibility and methods of using NOW Corpus in medical college English teaching, and puts forward some suggestions and prospects.

In the post feminist society, advertising has evolved into a new form, that is, women's empowerment advertising. Women's empowerment advertisements pay more attention to women's feelings, and convey women's self realization, self acceptance and self empowerment to the society at the...

Services through social media are in great demand because they are direct, convenient and effective besides that social media allows pharmacists to reach consumers quickly and more easily. Destination making WhatsApp Bot to make it easier for users and service providers to communicate, consult and obtain...

In the digital economy driven by the Fourth Industrial Revolution, disruptive technologies such as artificial intelligence (AI), cloud computing, and blockchain are fundamentally reshaping the industrial landscape. Against this backdrop, technology mergers and acquisitions (M&A) have emerged as a...

This paper addresses the issue of employee turnover in high-end luxury hotels. It overcomes the limitations of a single theoretical approach by integrating Maslow’s hierarchy of needs theory, Herzberg’s motivation-hygiene theory, and relevant neuroscience mechanisms to conduct a comprehensive psychological...

China's special vehicle market is rising day by day, and its sales are closely related to the domestic economic development. However, there are various use scenarios of special vehicles, including municipal vehicles, engineering vehicles, transport vehicles and coaching vehicles, etc., so the changes...

Under the environment of online learning being fully implemented, vocational college students’ participation in online learning is not high, their learning willingness is not strong, and their ability of independent learning and collaborative learning is weak. The data were obtained from freshmen in...

As credit card usage surges globally, associated security challenges, particularly credit card fraud, come into sharp focus. The prevailing method of fraud detection entails employing machine learning algorithms—a skillset necessitating specialized programming and algorithmic training. This research...

This paper selects all A-share listed companies with QFII holdings in Shanghai and Shenzhen stock market from 2013 to 2018 as research objects to study the impact of QFII on the real earnings management of enterprises and to explore whether internal control plays a mediating effect in this process. The...

A tracked vehicle gearbox is divided into two subsystems-housing and gear train. Dynamic behaviors of the two subsystems are coupled practically. And the coupled characteristics describe the integrative dynamic behaviors of gearbox. This study proposes a coupled simulation model to investigate the interrelationship...

We examine the effect of directors’ and officers’ insurance (D&O insurance) on corporate idiosyncratic risk in the Chinese market. We find that D&O insurance in China is negatively associated with corporate idiosyncratic risk. This association is robust to a series of robustness checks, including...

The national carbon market trading is about to go live. This paper mainly explores the problems and some personal opinions that the carbon emission right market has exposed after ten years of experience in the pilot based on the dual disciplines of law and economics. According to China’s national conditions,...

Thispaper makes use of the method of SWOT , objectively analyze Ti Ling city tourism development ,the strengths ,weaknesses, opportunities and threats. On the base of this analysis method put forward to the corresponding tourism development strategies.

The article refers to the necessity of rationalization of the spheres of modern education and culture to prevent a growing range of social violence in a global world. The author notes out the importance of religion in resisting the different forms of violence and irrationality in the contemporary societies....

In order to make full use of the solid wastes, an energy internet is designed for Laogang base, the biggest place to recycle wastes in Shanghai. This energy internet combine heat and methane with electricity on the basis of current multi-energy system in Laogang to increase energy utilization rate and...

In an applied electric field, the relationship between the ferroelectric’s intensity of polarization and the electric field intensity is not linear but a hysteretic loop which is called the ferroelectric hysteresis loop. When the temperature of the ferroelectric is heated to the transition temperature...

As the perfect effective means that makes social resource reasonable disposition and reduces social production cost and perfects market trade rule. but high social comes into being in the process of bidding. And mathematical model of social cost of bidding is set up through mathematics method to analysis...

Learning analysis is an integral part of the teaching design, is the antecedent condition in effective teaching. This article from the connotation, significance and implementation points, combining with the sports teaching practice, a summary of the physical learning situation analysis development of...

In recent 50 years, because of the interference of natural factors and human activities, the quality, productivity and the carrying capacity were decreased of Dumeng Country grassland in Heilongjiang Province. According to the division of county, Dumeng County township is determined disturbed grassland...

Under the background of new era, the application of mathematics is paid unprecedented attention to. The era calls for the application of mathematics. In the process of mathematics teaching, mathematical modeling is the key to cultivate students' overall mathematics quality, which is because mathematical...

In high-speed driving, vehicles can communicate with each other or with roadside infrastructure and direct communication times, resulting in the existing road network dynamically and rapidly build a self-organizing, distributed control vehicle communication network. In the mountain environment, due to...

Biodiesel, a biodegradable, sustainable and clean energy has attracted growing interest in recent years, mainly due to development in bio-diesel fuel and ecological pressures including climatic changes. In this study, lipase strains FS14 extracted from soil which is polluted by oil and fat were analyzed...

HrpZpsta gene is a broad spectrum disease resistance gene to plant disease. We transferred it into soybean with the promoter of 35S mediated by Agrobacterium and got T5 and T6 transgenic soybean-lines. To study the relationship between hrpZPsta gene expression in transgenic soybean and the resistance...