Zhengde Polytechnic College

China

Zhengde Polytechnic College

China
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Shen D.,Zhengde Polytechnic College | Zhang H.,Nanjing University of Information Science and Technology
Advanced Materials Research | Year: 2012

The impacts of environment regulation on production efficiency of manufacturing industry in Jiangsu province are analyzed based on DEA model. Results indicate that environment regulation has a positive impact for the whole manufacturing industry, but complex effects among the different cities. Nanjing, Lian Yungang and Taizhou enter the efficiency frontier when regulation is implemented; while the manufacturing industry of Huai'an and Zhenjiang drop in the technical efficiency. Finally this paper offers relative suggestions. © (2012) Trans Tech Publications.


Liu L.,Nanjing Southeast University | Xu X.,Zhengde Polytechnic College
Journal of Thermal Analysis and Calorimetry | Year: 2015

Nowadays, novel nanocomposites including polyhedral oligomeric silsesquioxanes (POSS) are used to impart potential flame-retarded properties to polymers. In this work, polystyrene nanocomposites containing octa(tetramethylammonium) POSS and organic clay were prepared by melt mixing method, and their enhanced combustion and thermal properties were investigated and discussed. The microstructures of composites obtained by TEM characterization indicated that POSS and clay were dispersed in the base polymer homogeneously. The thermal and combustion behaviors of composites were investigated by thermal gravimetric (TG) analysis and cone calorimeter. TG results obtained under air atmosphere show that the char yield increases obviously. Heat release rate together with other combustion parameters (such as the release rates of CO and CO2, the concentration of CO and CO2 and the smoke production rate) of composites is enhanced effectively. More importantly, the results show that 5 % replacement of POSS by organic clay is very helpful to the further improvements in most of parameters and cut down the cost effectively. Of course, nanoscopic size and structure of POSS and clay together with their well dispersion contribute to these improved fire safety properties. © 2015 Akadémiai Kiadó, Budapest, Hungary


Yang L.-S.,Zhengde Polytechnic College | Feng W.-J.,Nanjing University of Science and Technology
Tien Tzu Hsueh Pao/Acta Electronica Sinica | Year: 2012

A compact differential ultra-wideband (UWB) bandpass filter based on transversal filter concepts is proposed. Two transmission zeros and good harmonic suppression can be achieved for the differential mode, due to the two transmission paths with different lengths for input/output ports. Four quarter-wavelength shorted lines are added to improve the passband transmission characteristic for the differential mode. In addition, the common mode can be prone to be suppressed in the whole frequency band. A prototype with fractional bandwidth 102% and return loss greater than 15 dB for differential mode is designed and fabricated for demonstration;the measured results closely approach the theoretical expectations.


Yang L.S.,Zhengde Polytechnic College | Feng W.,Nanjing University of Science and Technology
Progress in Electromagnetics Research Letters | Year: 2014

A novel wideband balun filter based on a symmetric four-port balanced circuit is proposed in this paper. A pair of open coupled lines is used to realize DC suppression and in-band balance improvement for the balun bandpass filter. The bandwidth can be easily adjusted by changing the characteristic impedance of transmission lines in the balanced circuit. For the proposed balun bandpass filter, excellent in-band balance performance (amplitude and phase imbalance are less than 0.25 dB and 1.3° respectively) over the passband are achieved. A wideband balun bandpass filter prototype with center frequency 3.75GHz and 3-dB bandwidth 33.8% is designed and fabricated. Good agreement can be observed between the measured results and theoretical expectations. © 2014, Progress In Electromagnetics Research Letters, All right reserved.


Wu C.,Zhengde Polytechnic College | Huang H.,Nanjing Medical University
Advances in Information Sciences and Service Sciences | Year: 2012

BP neural network model shows strong superiority in dealing with fuzzy data computation. Based on large volumes of research achievements obtained by scholars domestic and overseas, the paper applies BP neural network model to quantitatively evaluate sports participants' sports psychology. On this basis, by integrating practically collected data, the evaluation results are compared with sports psychology evaluated by experience. According to the comparison result, we have found that it is feasible to conduct sports psychology evaluation with BP neural network model as the basic algorithm. Its computation result is quite consistent with the practical evaluation result. Accordingly, the feasibility and applicability of using BP neural network model for sports psychology evaluation is fully attested.


Zhang Y.,Zhengde Polytechnic College
Advanced Materials Research | Year: 2012

To carry out the worldwide environmental protection, ecocritics try to popularize the campaign by examining how current environmental issues are represented in literary works. With ecocirticism as the theoretical support, this paper is to interpret Ernest Hemingway's Green Hills of Africa, analyze the relationship between characters and nature, and reveal his attitude towards the natural world, by applying the combination of discourse analysis and documentary analysis. While hunting, Hemingway shows concern for environmental degradation, sticks to the hunting principle all the time, and is good at turning trash to treasure. It is not hard to conclude that Ernest Hemingway has developed the awareness of sustainable development. As a distinguished writer, Hemingway is of great importance to modern sustainable development in advocating, popularizing, and fulfilling this concept. © (2012) Trans Tech Publications.


Chen K.,Zhengde Polytechnic College
Lecture Notes in Electrical Engineering | Year: 2014

The cross-domain authentication technology of streaming media service and Web service is the difficulty in transmission system design of streaming media. RTMP protocol security is the necessity design during information transmission. Through bringing authentication management protocol (AMF protocol), applying AJAXtechnology to combine with open sourceRED5of streamingmedia service, we can realize cross-domain authentication of user information. This can solve security problems during user information transmission. The flowchart describes interactive process of Web client-side and streaming media service. Moreover, it provides Java realization of AMF protocol. © Springer-Verlag Berlin Heidelberg 2014.


Chen K.,Zhengde Polytechnic College
Applied Mechanics and Materials | Year: 2014

According to cross domain access control has model cannot solve the problem of record history operation; the application of trust evaluation theory reference XACML structure presents a new model. First of all, this paper introduces based on subjective logic trust evaluation theory and XACML standard decision framework. Secondly, combining trust management technology, puts forward the applied in Web cross domain access control T - WAC model, solved the cross domain access of trust computation and update. Finally, through the simulation experiments, using test data of the new model of the effect of the contrast analysis. The results show that T - WAC model can automatically adjust the authorization, achieves the anticipated effect. © (2014) Trans Tech Publications, Switzerland.


Zhang Y.,Zhengde Polytechnic College
2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings | Year: 2011

Nowadays, more and more foreigners participate in vehicle driving test in order to get the driver's licenses in China. Because they are not familiar with China's road traffic safety laws or road conditions, part of them are often involved in traffic accidents. This paper is to discuss the important and difficult points of theory teaching in motor vehicle driving training for foreigners, as well as the content of the driving test and the laws involved in it. Foreigners in China should be trained and helped not only to have a command of the related laws, rules and regulations but also to form good habits of driving safely and decently. © 2011 IEEE.


Yang J.-W.,Zhengde Polytechnic College
Advanced Materials Research | Year: 2014

With the constant development of the social modernization the communications between people and people are more and more frequent; the progress of science and technology, an increase in number of communication mediums consumedly widen the information channels. In this paper, research on the information dissemination channels and monitoring of sport events is helpful for game organization to choose information, control the main factors in the process, and in order to acquire the best dissemination. This paper analyzes the main channels of match information. and makes some advice for the sports events,after considering the features of each channel which the way receivers information. Meanwhile, we can establish a information dissemination monitoring system of sport event, which will provide a reference for game organization to control information effectively. © (2014) Trans Tech Publications, Switzerland.

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