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With the rapid development of ultra-high voltage grid and interconnections of regional power network, it brings adverse influence on frequency control of the power system. The stability of power grid frequency mainly depends on primary frequency compensation (PFC) and automatic power generation control...

This paper takes the University-enterprise cooperation of the biological science major of Lüliang University as an example. Through the questionnaire survey and interviews with relevant personnel, we can comprehensively investigate the situation of University-enterprise cooperation in Lüliang University....

To investigate the academic status of students and to analyze the trend of students' academic achievement in a new local college of medicine and probes into the key control factors that affect the students' academic failure. Academic cleaning, questionnaire investigation and interview were used to analyze...

According to the state's aim of accelerating the training of high-quality and applied professional degree postgraduates, Henan Polytechnic University and Xu Ji Electric jointly built the Henan Province Graduate Education Innovation Base, the base played an important role in the implementation of the...

In recent years, the rapid progress of urban service industry in our country makes it play a more and more important role in the economic development and modernization of our country. It is an important symbol to measure the socialization of production and the development level of market economy in a...

This paper builds model of multiple industries to analyse contribution of Fujian marine industrial structure change to marine economic growth and apply shift-share analysis method to analyse effect of Fujian marine industrial structure change on marine economic growth. Research results show that the...

The article studied mainly the design of inquiry learning process based on WebQuest and the methods of inquiry teaching activities in the process. Firstly, this paper analyzed the technical advantages of Webquest in cultivating learners' innovation and practical capabilities, and then analyzed the drawbacks...

In recent years, with the acceleration of people's pace of life, the number of chronic diseases in China is increasing. The attention and investment of the country to the medical industry is increasing year by year. At the same time, with the maturity and perfection of data mining technology, many countries...

In this paper, a sliding mode observer (SMO) based on PLL and rotary coordinate is designed for sensorless control of permanent magnet synchronous motors (PMSM). By the proposed SMO algorithm, the control system has a better dynamic performance?And the rotor speed error, the estimated speed, the rotor...

This paper proposes a class of nonlinear stochastic volatility (SV) models based on the Box-Cox transformation. The proposed class encompasses many parametric SV models that have appeared in the literature, including the well known lognormal SV model, and has an advantage in the ease with which different...

For the overheads of 802.11 WLAN, several frame aggregation mechanisms had been proposed to deal with this shortcoming. Since the rare consideration of QoS in these proposals, we took advantage of 802.11e queueing model to enhance the priority scheduling. This paper approaches to eliminate the decomposition...

The feature selection process can be considered a problem of global combinatorial optimization in machine learning, which reduces the number of features, removes irrelevant, noisy and redundant data, and results in acceptable classification accuracy. In this paper, we propose a combination of genetic...

A general phenomenon puzzles all investors is that on one hand, most individual investors believe they need to construct the portfolio consisting of 15 or more stocks to prevent risk because that large investment companies frequently get high returns is due to they obey the existing investment theory...

The purpose of this paper is to study vendor selection problem with multi-vendor and multi-item in iron & steel industry. Firstly, the native fuzziness, derived from some uncertainty information, of some parameters in decision-making objectives is analyzed. After that, a fuzzy multiobjective programming...