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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. Source


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. Source


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. Source


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. Source


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. Source

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