In this paper,we investigate the semi-global robust output regulation problem of a class of nonlinear networked control systems.By the emulation approach,we propose a class of sampled-data output feedback control laws...In this paper,we investigate the semi-global robust output regulation problem of a class of nonlinear networked control systems.By the emulation approach,we propose a class of sampled-data output feedback control laws to solve this problem.In particular,we first develop a general sampled-data dynamic output feedback control law and characterize the closed-loop system by a hybrid system.Then,we design the internal model based on the sampled error output of the system.Based on the internal model principle,we convert the semi-global robust output regulation problem into a semi-global robust stabilization problem of an augmented hybrid system composed of the internal model and the original system.By proposing the sampled error output feedback control law and by means of Lyapunov analysis,we obtain the maximum allowable transmission interval for sampling and show that semi-global robust stabilization of the augmented hybrid system can be achieved by the proposed sampled-data control law and thus leading to the solution of the semi-global robust output regulation problem.Finally,we apply the proposed control approach to two practical applications to verify the effectiveness of the proposed control approach.展开更多
Aging is considered the main risk factor for the development of several diseases,including the leading neurodegenerative disorders.While the cellular features of aging are complex and multifaceted,neuronal senescence ...Aging is considered the main risk factor for the development of several diseases,including the leading neurodegenerative disorders.While the cellular features of aging are complex and multifaceted,neuronal senescence has emerged as a major contributor and driver of this process in the mammalian cell.Cellular senescence is a programmed response to stress and irreparable damage,which drives the cell into an apoptosis-resistant,non-proliferative state.Senescent cells can also deleteriously affect neighboring,non-senescent cells.Senescence is a complex and multifaceted process associated with a wide range of cellular events,including the secretion of pro-inflammatory molecules and the arrest of the cell cycle.展开更多
基金supported in part by the National Science and Technology Major Project(2021ZD0112600)the National Natural Science Foundation of China(62373058),Beijing Natural Science Foundation(L233003)+1 种基金the National Science Fund for Distinguished Young Scholars of China(62025301)the Basic Science Center Programs of National Nature Science Foundation of China(62088101).
文摘In this paper,we investigate the semi-global robust output regulation problem of a class of nonlinear networked control systems.By the emulation approach,we propose a class of sampled-data output feedback control laws to solve this problem.In particular,we first develop a general sampled-data dynamic output feedback control law and characterize the closed-loop system by a hybrid system.Then,we design the internal model based on the sampled error output of the system.Based on the internal model principle,we convert the semi-global robust output regulation problem into a semi-global robust stabilization problem of an augmented hybrid system composed of the internal model and the original system.By proposing the sampled error output feedback control law and by means of Lyapunov analysis,we obtain the maximum allowable transmission interval for sampling and show that semi-global robust stabilization of the augmented hybrid system can be achieved by the proposed sampled-data control law and thus leading to the solution of the semi-global robust output regulation problem.Finally,we apply the proposed control approach to two practical applications to verify the effectiveness of the proposed control approach.
文摘Aging is considered the main risk factor for the development of several diseases,including the leading neurodegenerative disorders.While the cellular features of aging are complex and multifaceted,neuronal senescence has emerged as a major contributor and driver of this process in the mammalian cell.Cellular senescence is a programmed response to stress and irreparable damage,which drives the cell into an apoptosis-resistant,non-proliferative state.Senescent cells can also deleteriously affect neighboring,non-senescent cells.Senescence is a complex and multifaceted process associated with a wide range of cellular events,including the secretion of pro-inflammatory molecules and the arrest of the cell cycle.
