Advanced Materials Research Vols. 998-999

Abstract: VPN technology is a kind of common and mature data information sharing and exchange of technology. The technology can be very convenient to realize point-to-point transmission and guarantee process of information transmission security and integrity for the application of computer network. This paper introduces the principle of VPN technology and its advantages, and application of VPN technology in computer network is highlighted.

Abstract: The disaster-carrying bodies’ comprehensive vulnerability is a key to the risk research of urban disaster. Vulnerability is a comprehensive attribute of the hazard-carrying bodies and is affected deeply by society, economic and environment. The index system of the vulnerability assessment is worked out with the method of variable fuzzy clustering. The comprehensive vulnerability index model is structured, and the comprehensive vulnerability is calculated in the following example. Comparative to the existing research, variable fuzzy clustering and comprehensive vulnerability index model are more objective in data processing and the influence of the clustering categories is reduced.

Abstract: This research attempts to apply the modern network technology on the basis of the Internet technology. This paper analyses the current situation of the circulation of the urban and rural agricultural products. Based on the modern advanced network technology, the circulation passage is connected between the urban and rural. In this way, the conclusion is made that the government should also play an important role in the circulation.

Abstract: This thesis researches on the process of the tourism at home and abroad, and selects Com GIS as the combination of tourism industry and informationization. Based on the tourist market, this thesis takes the task of developing the tourism information system, based on the analysis and the design of the GIS characteristic, the development structure, the system database, the system function, takes the Com GIS software Super Map Objects as platform, takes SQL Server 2000 as the database, has realized system's integration with the Visual Basic, realized multimedia query, buffer analysis, overlay analysis, the optimal path and other functions. This thesis has conducted the exploring research about development of tourism information system, has certain reference to the tourism information construction, and provides comprehensively, accurate traveling information service for tourist, also provides the powerful technical support for tourist resource's scientific management and decision-making.

Abstract: This paper analyses status and requirement of electronic equipment test. Auto test system’s hardware based on VXI is presented. Test diagnosis network architecture is put forward. The advantages of C/S and B/S mode are analyzed. The computer network is combined with virtual instrument ideally. Based on existing VXI test system and combined with computer network technology, fault diagnosis network based on hybrid structure of C/S and B/S is developed by Lab Windows/CVI. It realizes instrument’s linking each, share resource and the improvement of the utilizing rate of instruments.

Abstract: Along with the arrival of network financial information times, network accounting emerges. Accounting means have undergone through handwork accounting and computer to replace the changes of handwork accounting, database and network. Maximum share of accounting information resource can be realized by network accounting, which accelerates the accounting affairs handing, making the centralized management easier and providing with endurance to the full development for the electronic business.

Abstract: With the fast development of information technology, various software systems have been widely applied to production lines and office work. A lot of corporate data thus are stored and processed by these systems each day. Therefore, the security of the software systems is closely related to the data security and the core competitiveness of an enterprise. At present, Java becomes one of the most important programming languages of the enterprise application systems. Against its hidden risks that Trojans and Backdoors are easily implanted through decompilation, the author of this paper proposes a security enhancement technique based on JVMTI for Java software to effectively prevent the malicious users’ decompilation through encrypting the bytecode files, thereby enhancing the security of the software.

Abstract: Based on the analysis of information service in China's rural area, a construction of area agricultural information service mode in cloud computing was proposed in this paper. Information collection module, network module and cloud computing module were designed in the paper as the key modules of the service mode.

Abstract: With the development of the Science and Technology, How to deal with the information by using computer and irrternet has been very important, the process of the human and computer interaction, the use of the visualization of information makes human and computer consistent, and also makes the transmission and access of the information intuitive and vivid. The paper firstly discusses the development process of the visualization of information, and analysis of the importance of the visualization of information in web design, and finally issues the application in web design of the user interface from three aspects that are graphical text, graphical data, and graphical structure.

Abstract: It expounds the big data and the relevant theoretical knowledge of big data mining, In view of the lack of effective analysis of the data resource access in delivery service of university library, this paper designs the personalized recommendation system service model of university library, with clustering analysis and association rules theory as the foundation of technology. And it introduces in detail how to cluster according to the user's attribute characteristics and how to introduce minimum support to opti-mize on the basis of the classical association rules algorithm. Experiments show that the improved algorithm can improves the utilization of library resources.