The eighteenth CPC National Congress points out that we should take the urbanization as the driving force of the economic development in China in the new period, vigorously develop the undertakings of the physical cul...The eighteenth CPC National Congress points out that we should take the urbanization as the driving force of the economic development in China in the new period, vigorously develop the undertakings of the physical culture and sports, enhance the sports con- sciousness of the urban residents in our country, guide our urban residents scientifically and effectively carry out sports and fitness, im- prove their levels of the fitness consumption, enhance the national physique and the comprehensive qualities, construct a beauty China, which are of great significance. Therefore, we must take present situation of the sports and fitness consumption of the urban residents in China as the basis, analyze the reasons, and conduct the targeted guidance and support, to ensure that China＇s urban residents have better working environments, and living conditions, and the better fitness habits, to continue to enhance our people＇s happiness indexes, and real- ize the beautiful Chinese Dream.展开更多
This paper considers the pose synchronization problem of a group of moving rigid bodies under switching topologies where the dwell time of each topology may has no nonzero lower bound. The authors introduce an average...This paper considers the pose synchronization problem of a group of moving rigid bodies under switching topologies where the dwell time of each topology may has no nonzero lower bound. The authors introduce an average dwell time condition to characterize the length of time intervals in which the graphs are connected. By designing distributed control laws of angular velocity and linear velocity,the closed-loop dynamics of multiple rigid bodies with switching topologies can be converted into a hybrid dynamical system. The authors employ the Lyapunov stability theorem, and show that the pose synchronization can be reached under the average dwell time condition. Moreover, the authors investigate the pose synchronization problem of the leader-following model under a similar average dwell time condition. Simulation examples are given to illustrate the results.展开更多
文摘The eighteenth CPC National Congress points out that we should take the urbanization as the driving force of the economic development in China in the new period, vigorously develop the undertakings of the physical culture and sports, enhance the sports con- sciousness of the urban residents in our country, guide our urban residents scientifically and effectively carry out sports and fitness, im- prove their levels of the fitness consumption, enhance the national physique and the comprehensive qualities, construct a beauty China, which are of great significance. Therefore, we must take present situation of the sports and fitness consumption of the urban residents in China as the basis, analyze the reasons, and conduct the targeted guidance and support, to ensure that China＇s urban residents have better working environments, and living conditions, and the better fitness habits, to continue to enhance our people＇s happiness indexes, and real- ize the beautiful Chinese Dream.
基金supported by the National Natural Science Foundation of China under Grant Nos.61473189 and 61621003the National Key Basic Research Program of China(973 program)under Grant No.2014CB845302
文摘This paper considers the pose synchronization problem of a group of moving rigid bodies under switching topologies where the dwell time of each topology may has no nonzero lower bound. The authors introduce an average dwell time condition to characterize the length of time intervals in which the graphs are connected. By designing distributed control laws of angular velocity and linear velocity,the closed-loop dynamics of multiple rigid bodies with switching topologies can be converted into a hybrid dynamical system. The authors employ the Lyapunov stability theorem, and show that the pose synchronization can be reached under the average dwell time condition. Moreover, the authors investigate the pose synchronization problem of the leader-following model under a similar average dwell time condition. Simulation examples are given to illustrate the results.
