Applied Mechanics and Materials Vols. 530-531

Abstract: When mobile users are going to searching on the web, they would like the search engine provide the most relevant results not only with the search terms but also with their location. However, many of existing search engine only considered to the query terms relevance, as their index structure cannot support location relevance very well. Propose a new hybrid index structure that combines R-tree and inverted file. Experiments show it is faster and more accurate to furnish searching results to mobile user, and the results are considered of text relation and the location proximity.

Abstract: Aimed at project Instructional Courseware Design Using Geometrical Painting Method which is an sample of multimedia courseware, an suggestion was made that design should be directed by appropriate teaching and learning theory, bring forth all materials to learner through appropriate technology, making the learner to be able to join into the whole process of learning, to practice all the related technique in time, so that the learner could to be learned soon. Through this process, the learner not only could learn the knowledge it self, but also the method to solve problems in the real world.

Abstract: The rapid rise of new audio-visual media business makes marking way and method about metadata of content of new media become extremely Important,appropriate marking way and method of content of new audio-visual media will directly impact exchange of contents of new media,its storage,positioning,retrieval,management and other related applications,meanwhile greatly affecting efficiency and sustainability of new audio-visual media.

Abstract: Mobile electronic micro-payment system uses mobile terminals for electronic payments which can circulate in multiple banks and cannot limit from the bank that issues the e-cash. This paper researches electronic micro-payment on the agreement of opening account, the withdrawal agreement, the pay agreement, the deposit agreement, the update protocol of the e-cash based on elliptic curve cryptography (ECC). The design of this system is more suitable for mobile micro-payment terminals with limit of calculation capacity, storage, network bandwidth and power supply, which satisfies the needs of the day-to-day transactions.

Abstract: The API calls reflect the functional levels of a program, analysis of the API calls would lead to an understanding of the behavior of the malware. Malware analysis environment has been widely used, but some malware already have the anti-virtual, anti-debugging and anti-tracking ability with the evolution of the malware. These analysis environments use a combination of API hooking and/or API virtualization, which are detectable by malware running at the same privilege level. In this work, we develop the fully automated platform to trace the native API calls based on secondary development of Xen and have obtained the most transparent and similar system to a Windows OS as possible in order to obtain an execution trace of a program as if it was run in an environment with no tracer present. In contrast to other approaches, the hardware-assisted nature of our approach implicitly avoids many shortcomings that arise from incomplete or inaccurate system emulation.

Abstract: Applying electronic seals in banking, we develop a effective way to generate electronic seals dynamically and print them on business vouchers. It involves Java Graphics, image processing and database technology. Compared with static electronic seals and physical seals, it shows a standardized, flexible and quick features and bears certain practical value.

Abstract: Malware evolves for the same reasons that ordinary software evolves. Like any other software product, the standard genetic operators selection, crossover and mutation are applied to evolve new malware. Recognizing and modeling how these malware evolve and are related is an important problem in the area of malware analysis. Grouping individual malware samples into malware families is not a new idea, and content-based comparison approaches have been proposed. Content-based approaches are hard to identify the real behavior of malware and it is inherently susceptible to inaccuracies due to polymorphic and metamorphic techniques. In this paper, we leveraged dynamic analysis approach to classify malware variants. The results demonstrate that our technique is able to recognize and group malware programs that behave similarly, achieving a better precision than previous approaches. The major advantage of our approach is that it can precisely tracks the sensitive information of malware behavior and is immune to obfuscation attempts. Our research is conducive to study the problem of malware classification, malware naming, and the phylogeny of malware.

Abstract: In this paper, a physical education test system is proposed and implemented, which is designed to solve slower testing and lower degree of electronic information in current college entrance physical examination. This system is consisted of single chip microcomputer, ultrasonic and infrared sensors, modeled by using the Unified Modeling Language, designed by using the Model-View-Controller design pattern, and implemented on the Microsoft Visual Studio 2010 development platform with SQL server 2008. Improving test efficiency, reducing error rate, and more fairness are achieved through practical application of this system.

Abstract: In order to service the need of high-tech companies, allow companies get the sci-tech information more quickly and efficiently. The sci-tech information retrieval platform is proposed. The platform has four parts; the web spider, the Solr engine, the SQL Server 2008 database and the client. Each part deals a core issue, the mode make whole system more flexible, scalable and fault tolerant. The web spider collect sci-tech information from the Internet, the Solr engine takes charge of indexing documents gained by the web spider, the SQL Server database store all the users information and the configuration of the whole system, the client provides several REST-like APIs to modify the configurations and get the latest information in the platform.

Abstract: In order to efficient tap the potential value in Chinese PDF documents and use Chinese PDF documents, an unique idea that extracting images from Chinese PDF documents is proposed in this paper. The idea combines PDFs document structure and page tree to extract images. Based on this idea, the experiments in this paper are done with one hundred Chinese PDF documents. And the extraction rate of the experiments obtains 83.56 percent. According to the analysis of experimental results, it is proved that the idea proposed in this paper is applicable to most of Chinese PDF documents and it is able to meet most of the needs of practical application.