Applied Mechanics and Materials Vols. 635-637

Abstract: In the context of the rapid development of Internet technology, information security is particularly important, especially at present there is growing incidence of attack targeting at the host and a variety of attacking means, which does a lot of harm. To do preventive work well is to figure out what risks threatening the host and formulate timely and effective measures to protect the host.The first computer in the world came out in 1946 in the USA. With the birth of this computer, the computer technology of humankind has made spectacular development for more than the last half century and penetrated into all aspects of our lives till today. Compared with traditional means of communication, the Internet has greatly facilitated our lives, which led to the growing dependence on the Internet as well. While technology is a double-edged sword, the Internet information security is also very acute problem, which greatly troubles people’s work and life. As the most fundamental part of a computer system, the host security problem draws people’s attention in particular.

Abstract: This paper focuses on the faults of military software system based on component. The faults are caused by external reasons during the using process of the software system. The method for faults diagnosis is based on the theory of expert system. The study finds that, there exist redundant questions during the reasoning process due to the uncertain factors and technical limitations of diagnosis system users. In order to improve the efficiency and reliability of military software fault diagnosis, a hybrid reasoning strategy was proposed. The strategy is based on the serial combination of uncertainty reasoning and interactive reasoning. Experimental result shows that the method based on the hybrid strategy for military software faults diagnosis is more accurate and flexible compared with the traditional reasoning method. The method also has improved the assurance work of military software system.

Abstract: Aiming at the uncertainty of fault signal and strong nonlinear trait of fault features,A Temporal-Spatial information fusion method of fault diagnosis is presented based on clustering means centralization. Extracting multiple template models from different types of fault,the means of which is regarded as the base point of certain clusters. Calculating the Euclidean distance between the fault features to be detected from different sensors and base point of all clusters,the reciprocal value of which is normalized to be Basic Probability Assignment (BPA) of every fault. With a period of continuous observations, multiples of BPA are combined with Dempster rule in every group of sensors in the time domain,then the results of every group combine again to get the final diagnostic results. Finally the case of motor rotor shows the effectiveness of proposed method.

Abstract: The traceability system is an important means of improving the quality and safety of agricultural products. Through a study on domestic and international traceability system, this paper presented a hybrid architecture based on the combination of Client/Server and 3-tire structure. The research work employed geographic information system, database technology, web technology, barcode, anti-counterfeiting code and .Net framework technology, thus a traceability system has been realized in which all the quality information is traceable through all the process, and all the agricultural products circulation routes and areas affected by inputs could be clearly displayed in geographic space.

Abstract: In order to ensure traffic safety, strengthen the comprehensive management of signal device and detect the use quality of railway signal equipment. We have done some research. Through analyzing the organization structure and feature of recent computer monitoring system, using the latest information and computer network technology. We propose a new system, whose performance and function are better than now. The result of analysis shows that networking style effect the performance of system, the combine of star and cycle style can make the system take advantage of the network resource better. Proper configuration of protocol can ensure the quality of communication among each layer and internal of each layer.

Abstract: At present, hierarchical routing protocols have been the main solution of routing scalability problem in MANET. Based on the deep research on hierarchical routing protocols, hierarchical routing protocols were divided into two parts. The situations of the main routing protocols of each part were reviewed and analyzed. This work will contribute to the further study of hierarchical routing protocols.

Abstract: In the modern Human-Machine interactive interface, symbol is used to express ideas, and is an important component of information visualization. By analyzing the style of interface design of "skeuomorphism" and "flat" that are two typical symbol designs, we analyze the differences between them, find out the user cases of these two symbols, and explore the future trends of the basic theories about symbol in the contemporary interactive interface. The experimental results show that skeuomorphism is different from flat in terms of five aspects including identity, interest, timeliness, familiarity, and simplicity. At last, we expect our research to provide guidance for the design of interface icons.

Abstract: The globally convergent version of MMA (GCMMA) is deeply studied in this paper. Based on 3-bar truss structures, the advantages and disadvantages of the rules for updating the parameters are analyzed. The factor that makes convergence rate slow is found. Then the improvement measure by using two points approximate optimization for reference is put forward to speed up convergence rate. Finally by application on structural optimization of a truss, improved GCMMA can converge to the global optimal solution. Meanwhile, the convergent rate of improved GCMMA is significantly faster than GCMMA.

Abstract: This research used the method of rough set and decision tree in data mining, building the evaluation model of soil fertility, to evaluate NongAn of Jilin province farmland productivity. Results show that the NongAn of arable land is divided into six grades, the fertility of grade one to six account for 6.77%, 14.29%, 23.78%, 23.51%, 20.13%, and 11.54% respectively. The farmland productivity difference is significant. The evaluation model of the evaluation results are in conformity with actual farmland productivity NongAn, avoiding the evaluation differences caused by the subjective factor, can effectively improve the soil fertility level classification accuracy and objectivity.

Abstract: When a event must be occur in a series of time span, it will not be fit enough to exhibit system’s time speciality if we use existing time Petri net. Thus, This paper propose a discrete time span Petri net (DTSPN) on the base of time Petri net which using to solve modeling of real system with restrict time span., emphasize on the analysis of state attainability, based on the algorithm of distinguishing model’s valid transaction sequence, a new algorithm about state attainability aimed at DTSPN is proposed, the simulation and analysis capability of Petri net is improved. Finally, example’s analysis indicate that discrete time span Petri net is valid in modeling of real system.