This study will help identify timeslots for interventions for integrating strength-building into stress response reduction in adolescents hospitalized for surgery.

To adapt to the trend of lightweight of vehicles, and optimize the structure of vehicle components, the former overturned support of a medium-duty truck cab was optimized by lightweight design. The 3d model of the cabin former overturned support was firstly established, and then finite element analysis method was used to analyze the distributions of stress and displacement, with the support under extreme work conditions. And then a lightweight design was made basing on the analysis. The support blank is produced by permanent mold casting method. To meet the requirement of actual production, this paper, analyzed the casting defects of the structure by lightweight design, and then had a further modification basing on the actual casting technique. The results indicate that the weight of the cab support is reduced 23.2%, with lightweight design reducing the support weight effectively under safety. And the modifications of the structure casting performance meet better the structural optimization objective, and make the production of the cab support more efficient.

After background modeling and segmenting of moving object for surveillance video, this paper firstly presented a noninteractive matting algorithm of video moving object based on GrabCut. These matted moving objects then were placed in a background image on the condition of nonoverlapping arrangement, so a frame could be obtained with several moving objects placed in a background image. Finally, a series of these frame images could be achieved in timeline and a single camera surveillance video synopsis could be formed. The experimental results show that this video synopsis has the features of conciseness and readable concentrated form and the efficiency of browsing and retrieval can be improved.

This paper focuses on the problem of global output feedback stabilization for a class of nonlinear cascade systems with timevarying output function. By using double-domination approach, an output feedback controller is developed to guarantee the global asymptotic stability of closed-loop system. The novel control strategy successfully constructs a unified Lyapunov function, which is suitable for both upper-triangular and lower-triangular systems. Finally, two numerical examples are provided to illustrate the effectiveness of a control strategy.