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This paper through the body-in-white model test got each order modal natural frequency, vibration mode, damping about this body-in-white. At the same time, on the basis of the test, analyzing the influence about windshield condition of each order modal parameters. Study shows that the low-frequency dynamic characters of the body-in-white is better, to improve local modal properties, increase the windshield on the body-in-white modal characteristic has certain strengthen.

As an experience digital game, serious game takes training, education or treatment as its purposes, social learning, identity projection and other theories as development bases. It is featured with scientificity, multi-modal, narrative and exploration, and has been widely applied in such fields as military, education and healthcare, etc. In recent years, with increasing number of countries confronted with aging population problem, many researchers gradually shift attention to cognitive capacity training of the elderly by virtue of serious game. The article intends to discuss the research situation of video game for the aged as well as development direction of Chinese video game for the aged, by elaborating video game features for the aged and its significant advantages of prevention of Alzheimer’s disease.

Based on the characteristics of rendering phase, a performance-based policy for job assignment under Distributed Rendering Environments (DREs) is proposed. Firstly, a method of evaluating rendering nodes is designed by taking CPU ratio, RAM size, CPU occupation, RAM usage into account. Furthermore, the corresponding algorithm of job assignment for dividing rendering tasks into sub-tasks on available rendering nodes is presented. Whats more, this algorithms correctness is validated by three groups of experiments thereby which offers quantitative guide for optimal job assignment of rendering.

In this paper, a practical development program of College English Online Courseware on the basis of the method of goal-directed interaction design is presented. The program basically tackles problems such as tedious interface and poor interaction which most current English online courseware have and improves the interactive experience and accessibility of the English online courseware. Meanwhile, the online courseware designed by using this method enriches the approaches of learning English for college and university students, who are main group of users. Therefore, their levels of English can be enhanced to a large extent by the assistance of the online courseware.

Internet attack is increasing and causing enormous economic loss in recent years. The network security literacy learning for educating students to defense Internet attack becomes more important. With the rapid development of computer and the mobile communication technology, the concept of entertainment is not new in todays Mobile Learning life and its purpose is to make the learning process more enjoyable when making people gain learning environment and resources anytime and anywhere. This paper integrates a funny computer network security education game into an iOS-based M-Learning platform which makes the learning process more fun and effective for its student end-users.

The mechanism of geogrid reinforcement in an embankment widening project was investigated in this study using numerical analysis. It was found that the geogrid reinforcement mainly affects the new embankment by decreasing settlement slightly and restraining the horizontal outward displacement effectively. This effect of geogrid reinforcement on embankment deformations is due to the stress redistribution in the new embankment and in the subsoil caused by geogrid reinforcement. The inclusion of geogrid reinforcement produces a small decrease in vertical stress in the new embankment and leads to a relatively larger increase in horizontal stress in the subsoil, thereby decreasing the shear stress of the subsoil. The effect of geogrid reinforcement on the new embankment and subsoil increases with the increasing geogrid layer number.

Using DDARF method, the uniaxial and biaxial compression experiments of double-fractured rock samples are numerically investigated. Influences of different fracture angles and confining pressures on behaviour of rock samples are studied. Moreover, the fracture process, the crack initiation stress, and the peak strength of the fractured rock under both uniaxial and biaxial compression tests are obtained. The results are used to obtain the strength envelope and to analyze the rock stability of an underground project as a case study.

The effect of anchor on fractured rock specimens in splitting test is simulated by DDARF method in this research. The results are compared and agree well with laboratory test results. The DDARF program is also adopted to analyze the stability of an underground cavern with four groups of randomly generated joints in the surrounding rocks, in which two conditions with and without rock bolts are considered. Besides, the crack propagation process around the cavern and the displacements of key points in the surrounding rock are monitored and applied to investigate the stability of the cavern.

As a safe, cost-effective, and easily accessible tool for gaining experience in surgery, the simulation-based surgical skill training has attracted more and more attention in modern hospitals and institutes. One of the most important advantages of virtual surgical training is affording useful instructional feedback to users. However, how to provide systemic and competitive surgical technique evaluation to trainees is still untouched. In this paper, for UK’s Royal Bournemouth Hospital virtual surgery system, we creatively constructed a surgical technique evaluation model which consists of static structure and dynamic process, as well as an index system which covers aspects of surgery performance.