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We aimed to investigate the life events, life satisfaction, and coping style of college students, and to assess the relationship between them by performing mediating effect analysis. Our findings may provide a scientific basis for promoting the mental health of college students. Students in a medical college were selected using grade-stratified cluster sampling, and administered a standardized questionnaire survey. Out of 2,000 participants, 1827 participants provided valid questionnaires (response rate: 91.4%). The mean scores of life satisfaction and life events were 181.39 ± 30.28 and 19.32 ± 15.62, respectively. The mean score of coping style was 14.34 ± 7.54, which reflected positive coping style. Analysis of life satisfaction, life events, and factor scores showed that different grades, sibling status (whether the respondent was the only child in the family or not), family location, and life events had a significant association with life satisfaction (

Martial arts tracking is an important research topic in computer vision and artificial intelligence. It has extensive and vital applications in video monitoring, interactive animation and 3D simulation, motion capture, and advanced human-computer interaction. However, due to the change of martial arts’ body posture, clothing variability, and light mixing, the appearance changes significantly. As a result, accurate posture tracking becomes a complicated problem. A solution to this complicated problem is studied in this paper. The proposed solution improves the accuracy of martial arts tracking by the image representation method of martial arts tracking. This method is based on the second-generation strip wave transform and applies it to the video martial arts tracking based on the machine learning method.

Summary Energy dissipaters constructed in precast structures play an important fuse-type role in concentrating damage and protecting the primary structure. The stable tensile and compressive deformation capacity, easier fabrication method, and relatively lower cost are expected in energy dissipater to further enrich its practical application. In this paper, a new bamboo-shaped fuse-type energy dissipater consisting of an inner bamboo-shaped core with slubs and an outer circular tube was developed with high-precision, all-metal machining, avoiding the adverse effect of grouting and welding. The aluminum alloy was applied to fabricate the proposed energy dissipater to improve the durability. A series of tests, containing 12 specimens, was performed to address the low-cycle fatigue behavior of bamboo-shaped dissipaters, and stable hysteretic curves were obtained without any local and overall buckling. The deformation of the core was evidently affected by slubs, which were restrained by the outer tube. Furthermore, parametric studies on design variables including length of segments, the length of slubs, the number of segments, and the size of gap between the slub and the tube are performed. On the basis of test results of all specimens, aluminum alloy bamboo-shaped dissipaters show a promising future for wide application in new or retrofitted buildings, which require excellent seismic behavior and durability.