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Time-Discretization of Delayed Multi-Input Nonlinear System Using A new algorithm
장강(Zhang Qiang),장정(Zheng Zhang),김성중(Sung Jung Kim),정길도(Kil To Chong) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.4
In this paper, a new approach for a sampled-data representation of nonlinear system that has time-delayed multi-input is proposed. That is largely devoid of illconditioning and is suitable for any nonlinear problem. The new scheme is applied to nonlinear systems with two or three inputs; and then the delayed multi-input general equation is derived. The method is based on thematrix exponential theory. Itdoes not require excessive computational resources and lends itself to a short and robust piece of software that can be easily inserted into large simulation packages. A performance of the proposed method is evaluated using a nonlinear system with time-delay: maneuvering an automobile.
중국 체육 대학생의 전공선택동기 및 진로의사결정이 대학생활만족에 미치는 영향
장강(Zhang Qiang),조현철(Cho, Hyun-Chul),이염삼(LI YanSen) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.2
This study selected 1028 college students from 6 universities in Hebei, Liaoning, Sichuan, Guizhou and Jiangsu Provinces of China as the research subjects, to research regarding of Major Selection Motivation, Career Decision Career Decision on College Life Satisfaction of Chinese PE Students for research purposes The SPSS for Windows(Version. 23.0) statistical program is used to conduct frequency analysis, exploratory factor analysis, reliability test, correlation analysis and multiple regression analysis, and the results are as follows: the independent variables such as motivation of major selection, career decision have statistically significant influences on the dependent variables - college life satisfaction. Of all the variables, except the intuitive type, the others had a meaningful effect on college life satisfaction. The order of the influences are future plan, extrinsic motivation, dependency type, problem solving, goal selection, intrinsic motivation, career information, and rational type, among which future plan has the greatest influence on college life satisfaction. Therefore, through the results, it can be confirmed that the major selection motivation, career decision will have an important impact on college life satisfaction of Chinese PE students. The improvement of college students" motivation level, career decision-making ability, especially their future planning ability, will contribute to the improvement of college life satisfaction. This can provide references for the employment guidance work of PE college students and the future improvement of the college education quality and services.