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Chen Jin,Sun Dihua,Zhao Min,Li Yang 한국자동차공학회 2021 International journal of automotive technology Vol.22 No.5
For the automated vehicles, the user experience on comfort plays an important role for the market acceptance. Generally, for the experienced drivers who already form some certain driving preferences during the longtime driving, they will feel apparent discomfort if the automated vehicles drive very differently from them. Therefore, it is of great significance for comfort driving if the automated vehicles could learn the driving preferences of the users. Fortunately, we enter the era of traffic big data, from the cyber physical system (CPS) perspective, we almost can get whatever data we need to map human drivers from physical space to cyberspace. In this paper, we build a general driving model based on deep convolutional fuzzy systems (DCFS), and design an online driving preferences learning algorithm based on the high-dimensional on-board data. For the verification of the method, we apply this method to design a personalized lane keeping controller (PLKC) with considering the guaranteed stability. Fifteen volunteers participate in the experiments on the Prescan-based simulation platform, and the results show that the PLKC has the online learning ability to the fixed and the time-varying lateral driving preferences.
Chen, Jin,Chen, Qian,Hu, Bo,Wang, Yunji,Song, Jinlin Korean Academy of Periodontology 2016 Journal of Periodontal & Implant Science Vol.46 No.6
Purpose: Alendronate has been proposed as a local and systemic drug treatment used as an adjunct to scaling and root planing (SRP) for the treatment of periodontitis. However, its effectiveness has yet to be conclusively established. The purpose of the present meta-analysis was to assess the effectiveness of SRP with alendronate on periodontitis compared to SRP alone. Methods: Five electronic databases were used by 2 independent reviewers to identify relevant articles from the earliest records up to September 2016. Randomized controlled trials (RCTs) comparing SRP with alendronate to SRP with placebo in the treatment of periodontitis were included. The outcome measures were changes in bone defect fill, probing depth (PD), and clinical attachment level (CAL) from baseline to 6 months. A fixed-effect or random-effect model was used to pool the extracted data, as appropriate. Mean differences (MDs) with 95% confidence intervals (CIs) were calculated. Heterogeneity was assessed using the Cochrane ${\chi}^2$ and $I^2$ tests. Results: After the selection process, 8 articles were included in the meta-analysis. Compared with SRP alone, the adjunctive mean benefits of locally delivered alendronate were 38.25% for bone defect fill increase (95% CI=33.05%-43.45%; P<0.001; $I^2=94.0%$), 2.29 mm for PD reduction (95% CI=2.07-2.52 mm; P<0.001; $I^2=0.0%$) and 1.92 mm for CAL gain (95% CI=1.55-2.30 mm; P<0.001; $I^2=66.0%$). In addition, systemically administered alendronate with SRP significantly reduced PD by 0.36 mm (95% CI=0.18-0.55 mm; P<0.001; $I^2=0.0%$) and increased CAL by 0.39 mm (95% CI=0.11-0.68 mm; P=0.006; $I^2=6.0%$). Conclusions: The collective evidence regarding the adjunctive use of alendronate locally and systemically with SRP indicates that the combined treatment can improve the efficacy of non-surgical periodontal therapy on increasing CAL and bone defect fill and reducing PD. However, precautions must be exercised in interpreting these results, and multicenter studies evaluating this specific application should be carried out.
Chen Jin,Luo Heng,이창식 사단법인 한국융합기술연구학회 2023 아시아태평양융합연구교류논문지 Vol.9 No.9
In recent years, in China, due to the one-sided pursuit of the enrollment rate, and the increasingly severe employment pressure has caused students to lack time for physical movement, and their physical fitness has declined every year. If this problem is not effectively resolved, it will affect the healthy growth and bliss experience of young people. Therefore, the country has issued several laws and directions to promote the health of adolescents, hoping to solve this unfavorable situation. This research aims to confirm the combined model of mediation and moderation of passion and perseverance in the effect of peer group cohesiveness between physical movement and the bliss of college students and explore the plans to improve bliss. This study used a quantitative approach and 333 respondents from 3 colleges and universities in Nanjing, China, were selected using a purposive sampling method. For the analysis, frequency, reliability, correlation, and moderated mediation effect analysis were performed. The results are in the followings. First, physical movement had a significant and positive association with passion and perseverance, peer group cohesiveness, and bliss. Passion and perseverance had a significant and positive association with peer group cohesiveness and bliss. Peer group cohesiveness had a significant and positive association with bliss. Second, the conditional indirect effect was proved when the passion and perseverance was high. This study confirmed that passion and perseverance contributes to the path through which physical movement of college students increases bliss via peer group cohesiveness.