Applied Mechanics and Materials Vols. 198-199

Abstract: TOR is a popular anonymous communication system nowadays. This article measures the security of TOR network by probability of disclosure communication relation between TOR user and his destination, and discusses some factors that influence it, finally gives a formula to express the relation among them. We also refer to TOR network archived directory information to evaluate the security level of TOR, and bring forward three advices for using TOR safely..

Abstract: This paper presents a new type of hospital OA system based on the SOA(Service Oriented Architecture) architecture. The system follows the requirement of SOA in order to provide a better working condition for the hospital. The system adopts the plug-in programming method so that it can be partly designed by programmer without worrying about the programming language and the details of the operation system. The system provides many services, such as BBS service, address book service, email service, work attendance service, etc. These services can be deployed onto various application servers at different locations. In addition, the system also offers a special interface so that the mobile devices can use to access the system, The system prototype is implemented using web services from Tomcat. The data is stored in SQL Server 2005 database. The initial implementation has been tested in a provincial hospital and the corresponding results have been proven the feasibility of the proposed system.

Abstract: In recent years, the Flex technology has been widely used. Adobe Flex application framework designed to start introduction of the Cairngorm framework. The framework with the MVC design pattern to simplify the application development model, specification of the application development process, and pay more attention to the business logic, the author after careful study of the entire framework, the control layer of the Cairngorm framework is made some improvements to the improved version of the Cairngorm framework. The improved version of the Cairngorm framework is more suitable for Web application development and maintenance.

Abstract: A novel workflow engine for Web service orchestration, JBPM4WS is proposed in this paper. JBPM4WS is built on JBPM, a well-known workflow engine. We extend the workflow language JPDL, which is adopted by JBPM, to support service invoking. JBPM4WS engine adopts four-layer architecture, and is implemented based on some open-source frameworks, such as Hibernate, CXF and JAXB.

Abstract: This paper proposes a novel method for breast cancer diagnosis using the features generated by genetic programming (GP). We developed a new individual combination pattern (Composite individual genetic programming) which regards several individual as one unity to generate more powerful features that can improve the discriminatory performance of a classifier and reducing the input feature dimensionality at the same time. The performance of the proposed method is demonstrated by extensive experiments on MIAS and DDSM mammographic image database.

Abstract: Operating system, as the core software, influences or even decides the performance of the whole computer system. And its performance is directly related to its structure. This paper discusses the classification of modular structure designs, shows some typical structures of operating systems, studies the composition and features of these structures, analyzes and compares performances of operating systems of different structures. Finally, it points out the trend for the structure design.

Abstract: From the core conception of SOA——service, this paper describes the details on conception of SOA and function of web services in process of integration, and realizes a complete and flexible architecture. In the aspect of Transaction Processing of service process, this paper realizes the compensation service and method of Qos detection in the compensation service.

Abstract: Since the component technologies and Component-Based Development (CBD) or Component-Based Software Engineering (CBSE) started at 90 of 20th century [1], today almost 70 percent of software development with components. But from the industry practice and component based application developers’ point of view, the big problem still exists which is how to compose software components together effectively and efficiently. Here, by research on the component and taskflow and XML technologies, to illustrate a taskflow based design of component composition technology with XML based tasks for components integration and to improve the efficiency of CBSE.

Abstract: Refactoring has been studied for a long time, especially model refactoring has become the hot spot of research in recent years. However, the difference between source-based refactoring and model-based refactoring makes it hard to keep consistent between the target code and model refactoring operations. To resolve the problem, this paper presents a refactoring framework of program model based on Procedure Blueprint and gives the prototyping tool system of program model refactoring. Through seamless connection source code established by procedure blueprint to program model，the formalized framework unified the refactoring of source-based and program model based. The refactoring framework supports the visualization representation of program model and the validation for behavior preservation of graphics transformation, which reduces the complexity of refactoring analysis and software maintenance costs.

Abstract: Semantic annotation is the fundament for the progress and realization of semantic web, meanwhile, provides formatted description for the knowledge in web pages and its semantic meaning in the field. A method for semantic annotation to webpage was presented under the instruction of domain ontology in this paper. By Edit distance and Wordnet distance and from the two aspects the semantic meaning of the word, the semantic correlation degree was measured, then the mapping relation of webpage and ontology was built. Moreover, after the semantic annotating to the WebPages, the ontology was expanded effectively by the annotation results, to domanialize the ontology. At the end, experimental results show the tagging method bases on the weight coefficient acquired form Edit distance, wordnet distance and extended ontology concept is provided with the best performance and the method is effective and applicable.