Applied Mechanics and Materials Vols. 433-435

Abstract: In order to reduce the costs during publish and maintenance of equipment technical information, and improve the effective management and application of equipment support information, the key technology of preparing IETM based on GB/T24463 is introduced, and the development process and structure of IETM system based on GB/T24463 is analyzed, developing an IETM solution integrating compiling, reading and management in one, and with the design and achievement of all functional modules of IETM system being discussed in details.

Abstract: With the rapid development of communication technology, wireless internet technology and the increasing number of mobile phone users, people were more concern on the efficiency of real-time information service. Based on communication mechanism of multiple threads, a data delivery controller for mobile phone communication was presented in this paper. The server side controller designed on Java multiple threads and provided efficiency data response for request of android mobile phones. By our experiment, the average response time on the server was 3.8s on ten million times addition calculation, which can effectively meet the real-time requirements of mobile communication.

Abstract: It extends the network management mode of CSM, and offers a service-oriented management interface between customers and service providers. Extends some provider’s service management towards the customers and enables customers to monitor and control information about service-specific QoS parameters. Logical network, a hierarchical presentation of abstract network is presented; the definition, attribute, structure and computing method of the logic network is discussed. The presentation and access of CSM-MIB which is implemented using distributed objects is completed; by taking advantage of logical network, the abstract customized views of physical network is built and the management functionalities of agreement, assignment, performance monitoring and reporting of CSM are implemented. Practice in implementing CSM system indicates that it is a reasonable method to construct CSM system using distributed object technology. Service Management is a developing new network management paradigm. At current stage, the applied CSM target concentrates on IP connection service.

Abstract: The daily learning and teaching activities in digital campus would be better supported if existing Web applications and services could be accessed on mobile devices. A mobile portal can gather information from different systems and provide integrated and personalized services to the users in a unified manner. This paper discusses the considerations to take when designing a mobile portal in digital campus, illustrates the system architecture of the mobile portal we actually built, and describes the implementation and technical details of the system. The mobile portal introduced in this paper has been in active service at Tsinghua University since May 2012 and has well boosted the efficiency of daily learning and teaching activities in the university.

Abstract: With the development of the computer network and communication technology, some important information is used to infringe upon by using the Internet and associated communications technology. The paper analyzes briefly the principle of the JAVA stream filtering and data security protection strategy on network of multi-level, then takes some safety measures for data protection by using the JAVA stream filter, mainly focuses on the network transmission of the socket data, in order to protect the security of data, and discussed some related problems of data encryption, finally gives the safety results.

Abstract: In order to improve the efficiency of the traditional building materials information management, a construction materials quality detection management system is designed and developed. It includes three subsystems, they are quality testing system, information management system and process monitoring and control system. In the system, SQL Server 2000 is used as background database, Visual C++ 6.0 is used as the development platform, ADO is used as the connection between Visual C++ and SQL Server 2000. By using this system, the original paper records are stored in the database, the testing process is standardizes. The modernization of building materials information management is improved. This system has been successfully used in certain Building Materials Quality Supervision Station, which proved that the development process is suitable for Building Materials Supervision Station to quickly establish construction materials quality detection management system.

Abstract: In order to realize the goal of one-stop operation service in the petrochemical industry, according to the integrated device operation and maintenance mode of the domestic large and complex petrochemical industry units, integrated and comprehensive service system of operation and maintenance of petrochemical units is designed. Three subsystems of operation and maintenance management, preventive maintenance, maintenance emergency response are designed into an integrated and comprehensive service system. The system has the characteristics of being integrated, open, easy to extend and maintain. The system is developed and implemented in the petrochemical corporation and has a good prospect of application.

Abstract: UML is considered as the standard for object-oriented modeling and design. Automatic test case generation is an important method for the verification and validation of UML specifications to reduce the development cost and help increase the reliability. In this paper, we present a method to model the specific constraints using context-based multiplicity, which defines on the instances of the class associated with the context, instead of using constraints defined informally or in OCL. Then, an algorithm is proposed to generation a set of test cases to verify the context-based multiplicity in an implementation. The example and implementation for a real system are also presented.

Abstract: In the Zongzi manufacturing industry, the traditional Zongzi piecework way not only consumes huge manpower, but also has low efficiency, and prone to error. In this paper, Zongzi piecework system is designed, PLC is adopted as the control center, piecework subsystem and sampling subsystem are developed to implement Zongzi high-speed count and sampling control of multiple production lines in the same time. Practical application shows that the system can greatly improve the speed and precision of Zongzi piecework.

Abstract: Nowadays, the technology and concept of Web 2.0 have been widely applied, which injects vigor into many traditional web applications. And in vertical social networking services exist many content data, which is one kind of the unstructured data.[ The purpose of the snapshot replication algorithm proposed in the paper is to solve the problem of data inconsistency [in the storage of unstructured data and keep a good balance among capacity, velocity and availability. The experiments show that snapshot replication algorithm combined with replication when referenced algorithm and hard link optimization could perform very well in capacity, velocity and availability.