Hunan mechanical and electrical polytechnic

Changsha, China

Hunan mechanical and electrical polytechnic

Changsha, China
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Fang L.,Hunan Mechanical and Electrical Polytechnic
C e Ca | Year: 2017

This paper analyzes the impact of computer corpus on chunk application in English writing. First, the concepts involved in this research are explained and the Corpus of Contemporary American English (COCA) and British National Corpus (BNC) are introduced. Second, an empirical study is carried out in light of computer corpus with the aim to provide a feasible method for improving the English writing skills of college students. Chunk application is a key measure of the quality of English writing, which is the weakest point of college students learning English in China. The results of the empirical study indicate that the students more adept in chunk application write better English articles, and computer corpus can help student improve their chunk utilization ability. © 2017 Techna Group Srl & ESMC Co., Ltd.

Zhu J.,Hunan Mechanical and Electrical Polytechnic
Revista de la Facultad de Ingenieria | Year: 2016

With knowledge as the power source, enterprise's innovation and transformation has its achievements directly linked to the ability and level of enterprise's knowledge management. In view of this, it is meaningful to evaluate the management capability and level. Targeted at problems existing in the current evaluation process, we studied the corresponding evaluation system and model. Firstly, a discussion was conducted on the connotation of enterprise knowledge management and the positive role of assessment on its ability and level. Then, we analyzed the management problems as well as their impact on our evaluation process. Afterwards, we referred to the evaluation index selection principle, and accordingly established the evaluation system of enterprise knowledge management ability and level. Finally, by combining grey relational analysis with fuzzy evaluation analysis, we built up a fuzzy grey relational comprehensive evaluation model on the basis of an initial decision-making analysis matrix, a normalized decision-making matrix and the weighted triangular fuzzy number distance. The algorithm implementation steps were also listed in the latter part. © 2016, Universidad Central de Venezuela. All rights reserved.

Li H.,Hunan Mechanical and Electrical Polytechnic
Agro Food Industry Hi-Tech | Year: 2017

Smart home is an emerging field in recent years. It is an important field in the application of Internet of Things technology, which takes the residence as a carrier, uses the Android, ZigBee and embedded technology to make various home appliances, security and other facilities integrations that are related to the home life constitute the residential facilities management system, so as to make the home life more intelligent, humane and energy saving. In the research, the current research situation of the subject was investigated, and the related theory and technology were analyzed. The smart home system under the framework of Android and ZigBee technology was designed, and an example experiment was carried out, then, the data was used to illustrate the advanced nature and feasibility of the system.

Wang M.,Hunan Mechanical and Electrical Polytechnic
International Journal of Online Engineering | Year: 2017

For exploring wireless sensor network - a self-organized network - a new node location algorithm based on statistical uncorrelated vector (SUV) model, namely SUV location algorithm, is proposed. The algorithm, by translating the node coordinate, simplifies the solution to double center coordinate matrix, and gets the coordinate inner product matrix; then it uses statistical uncorrelated vectors to reconstruct the coordinates of the inner product matrix and remove the correlation of inner matrix of coordinates caused by the ranging error, so as to reduce the impact of ranging error on subsequent positioning accuracy. The experimental results show that the proposed algorithm does not consider the network traffic, bust still has good performance in localization. At last, it is concluded that reducing the amount of communication of sensor nodes is beneficial to prolong the service life of the sensor nodes, thus increasing the lifetime of the whole network.

Lu B.,Hunan Mechanical and Electrical Polytechnic | Huang W.,Hunan University
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | Year: 2011

This paper proposes a novel hybrid wavelet-energy operator method for accurate voltage sag detection and measurement. In the proposed method, the voltage sag is decomposed into two signal parts by wavelet transform: one is a detail signal, the other is an approximation signal. And in the detail signal, the start time and the end time of the sag signal can be detected. By applying an energy operator to the approximation signal, the temporary sag decline in value can be measured accurately and quickly. At the same time, the wavelet transform (WT) in this method acts like a filter. WT can weaken or remove the high frequency disturbance from voltage sag to enhance the noise immunity and accuracy of the energy operator. Simulation and experimental results verify the effectiveness of the algorithm.

Liao J.,Hunan Mechanical and Electrical Polytechnic
Lecture Notes in Electrical Engineering | Year: 2013

It is one of the most important methods for agriculture automatization in Greenhouse's measurement and control. Wireless Autoregulation system for greenhouse's temperature and humidity based on ZigBee technology was very satisfied with the request of low power consumption, low-cost and scale expanding afterward. We select the transceiver CC2430 as key chip set and designed the hardware interface between CC2430 and MCU Atmega128 and descript software flow for communication, presenting a scheme of wireless sensor network node based on CC2430 chip set, realized the real selfcontrol, it can Monitor every greenhouse's temperature,humidity and control and regulate Sprinkler valve, Experiment proves the design system can remotely and automatically monitor areas online, it has the economical, effective, real-time, convenient character and low energy consumption,which have a important meaning in promoting the Greenhouse to advance. © 2013 Springer-Verlag.

Li Y.,Hunan Mechanical and Electrical Polytechnic
Engineering Technology, Engineering Education and Engineering Management - International Conference on Engineering Technology, Engineering Education and Engineering Management, ETEEEM 2014 | Year: 2015

With the continuous development of science and technology, sports training are coming to the scientific era; it has penetrated into all aspects of sports training from the experience of the era to modern science and technology, and plays an increasingly large role. Computer and information processing technology in improving the level of sports, especially as a secondary means of training, is playing an essential role. In the field of sports, the scientific control of computer of the sports training process and many other factors provides possibilities and the necessary in technical support for exercise training. © 2015 Taylor & Francis Group, London.

Li Z.,Hunan Mechanical and Electrical Polytechnic
WIT Transactions on Information and Communication Technologies | Year: 2014

Nowadays the parallel computer system plays the important part in the scientific engineering research; this paper has conducted the detailed analysis research on the parallel computer system's unique feature and the key fault-tolerant technology and has carried on the detailed introduction to its performance superiority. © 2014 WIT Press.

Li Z.,Hunan Mechanical and Electrical Polytechnic
WIT Transactions on Information and Communication Technologies | Year: 2014

The distributed computer system was a computer in practical application domain important form, this article has carried on the brief introduction to the distributed computer system structure and the constituent, analyzed it to be opposite with other ordinary computer system superiority, finally has conducted the thorough analysis research on the distributed computer system's practical application situation. © 2014 WIT Press.

Chen J.,Hunan Mechanical and Electrical Polytechnic
WIT Transactions on Information and Communication Technologies | Year: 2014

The Internet of things (IOT) technology is the most cutting-edge technology of informationization and intelligence, which can achieve the exchange of information between persons and things and between things. It has greatly enriched the research and application of network technology. This paper describes the development of the Internet of things technology as well as its application in the country and puts forward views and conjectures on development prospects of the Internet of things technology in the coming years. © 2014 WIT Press.

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