Applied Mechanics and Materials Vols. 397-400

Abstract: The XML documents are nested and semi-structured, but the traditional access control mechanism is coarse-grained and not applicable. We proposed an XML access control model (XACM) for XML repository. The XACM provides a fine granular definition for XML authorizations, which is based on the self-description characteristic of XML. We also discuss how to use the XACM to automatically preserve the access control policy, when relational databases are published as XML documents. Finally, we present the implementation of the XACM in an actual XML publisher system. Comparing with existing related works, the XACM is more flexible, efficient and less overheads.

Abstract: The traditional search engine is unable to correct search for the magnanimous information in Deep Web hides. The Web database's classification is the key step which integrates with the Web database classification and retrieves. This article has proposed one kind of classification based on machine learning's web database. The experiment has indicated that after this taxonomic approach undergoes few sample training, it can achieve the very good classified effect, and along with training sample's increase, this classifier's performance maintains stable and the rate of accuracy and the recalling rate fluctuate in the very small scope.

Abstract: Based on college counselors work as the breakthrough point, this paper was discussed the responsibilities of college counselors and analyzed the present situation of our university counselors. On the basis of practical work of counselors, college counselors work assistant system was designed. Several modules are developed in this system, students are able to finish assignments in their dormitory instead of having to do it in classroom. The online evaluation module is convenient and secure. Administrator can set the item vote as single selection or multiple choice and every student has one chance to vote for any evaluating theme. Thus the accuracy of voting result is ensured, time is saved and efficiency is increased.

Abstract: This article take CNC grooving machine as the study project, take the design of open control system based on PC+motion control card as study method, take use of the powerful motion control function and abundant DLL function library of MPC08SP motion control card, apply Visual C++ 6.0 to the development of the underlying process, gives the design of open CNC system of grooving machine, which satisfies the real-time performance and accuracy of control system.

Abstract: Research and Application of Music Digitalization Based on MATLAB is introduced in this paper. Firstly, music theory and key technology of Music Digitalization based on MATLAB in the process are given. Secondly, an example is introduced to illustrate the process of music analysis and synthesis based on MATLAB. Finally, conclusions and Outlook are introduced.

Abstract: System modeling of software generally does not include security modeling. System security strategy and security mechanisms are often developed as the system supplement and improvement measures, at the latter part of system development. The irregular processing method of security requirement brings great risks to the latter security maintenance and integrations between systems. The integration of RBAC security model and the usual UML models about a system was described and the integrated approach and process was given with an example in this paper.

Abstract: OpenGL provides a good development platform for Digital Earth. With the development of three-dimensional computer visualization technology, the significant features of OpenGL will become more compatible with the trend of 3D GIS development. Through OpenGL, software technology and relative theories, especially with the progress of in-depth study of the Digital Earth, the goal building the three-dimensional digital globe has become possible, therefore, we can implement a three-dimensional methods on the initial development of Digital Earth by the visual programming environment of Visual C++ 6.0.

Abstract: In order to make effective reuse of existing integrated circuit (IC) process cases, improve design efficiency, robustness of design resolutions and overcome knowledge famine and knowledge orientation problems in design process, a feature based hierarchical framework of knowledge modeling and similarity measurements based knowledge clustering method of IC process cases are proposed. In this paper, IC process cases knowledge is represented into four types: sequential type, textual type, crisp type and interval type. According to knowledge classification, sequential similarity measurement for process sequence knowledge and content similarity measurement for the rest types are listed. Finally, existing IC wafer handling process cases of an IC manufacturing enterprise are employed to verify the proposed methods.

Abstract: When travelers search for the traveling route, they usually take into account the number of transfers, transfer mode, trip distance, travelling time and cost and so on, so the elements such as multi-criteria and a various of traveling model and long distance can be considered in the inquery model. Therefore, the paper proposes a new searching model based on the directed network, the model not only has a good ability to satisfy the demands of multi-criteria for travellers through assignment strategy, but also can describe the transfer between the various means of transportation by setting vehicle speed. In the end, it verify the effectiveness and practicality of the model.

Abstract: Chinese rural areas’ Internet coverage is relatively low based on the investigation of Beijing suburbs. It will take a long time to achieve that Internet enters households of farmers. In response to this reality, the paper puts forward the new idea that use U disk to lead agricultural information resources into rural areas, so agricultural expert system based on U disk-U Nong Shu Cai Tong System is developed. It can effectively solve the problem of farmers' knowledge acquisition. The paper discusses the background, architecture, functions, system development’s difficulties and application of U Nong Shu Cai Tong System.