We develop a policy of observer-based dynamic event-triggered state feedback control for distributed parameter systems over a mobile sensor-plus-actuator network.It is assumed that the mobile sensing devices that prov...We develop a policy of observer-based dynamic event-triggered state feedback control for distributed parameter systems over a mobile sensor-plus-actuator network.It is assumed that the mobile sensing devices that provide spatially averaged state measurements can be used to improve state estimation in the network.For the purpose of decreasing the update frequency of controller and unnecessary sampled data transmission, an efficient dynamic event-triggered control policy is constructed.In an event-triggered system, when an error signal exceeds a specified time-varying threshold, it indicates the occurrence of a typical event.The global asymptotic stability of the event-triggered closed-loop system and the boundedness of the minimum inter-event time can be guaranteed.Based on the linear quadratic optimal regulator, the actuator selects the optimal displacement only when an event occurs.A simulation example is finally used to verify that the effectiveness of such a control strategy can enhance the system performance.展开更多
血栓性微血管病(Thrombotic microangiopathy,TMA)是一组以非免疫性血管内溶血和缺血性器官功能障碍为特征的疾病,包括原发性血栓性微血管病[如血栓性血小板减少性紫癜(Thrombotic thrombocytopenic purpura,TTP)等]和继发性血栓性微血...血栓性微血管病(Thrombotic microangiopathy,TMA)是一组以非免疫性血管内溶血和缺血性器官功能障碍为特征的疾病,包括原发性血栓性微血管病[如血栓性血小板减少性紫癜(Thrombotic thrombocytopenic purpura,TTP)等]和继发性血栓性微血管病[如弥散性血管内凝血(Disseminated intravascular coagulation,DIC)等]。目前血管性血友病因子裂解蛋白酶(A disintegrin and metalloprotease with a thrombospondin type 1 motif member 13,ADAMTS13)在TTP诊疗中的作用相对明确,但是否在其他血栓性微血管病的诊疗中存在同样重要的价值并不清楚,ADAMTS13作用于相关血栓性微血管病的具体机制较为复杂。ADAMTS13在DIC、系统性红斑狼疮肾炎以及严重肝损伤等相关血栓性微血管病中活性均有不同程度的降低,或许可作为该类疾病的辅助诊断指标。本文主要从ADAMTS13与血栓性微血管病的发病机制及其在相关血栓性微血管病诊疗中的应用价值进行综述。展开更多
基金Project supported by the National Natural Science Foundation of China (Grant No.62073045)。
文摘We develop a policy of observer-based dynamic event-triggered state feedback control for distributed parameter systems over a mobile sensor-plus-actuator network.It is assumed that the mobile sensing devices that provide spatially averaged state measurements can be used to improve state estimation in the network.For the purpose of decreasing the update frequency of controller and unnecessary sampled data transmission, an efficient dynamic event-triggered control policy is constructed.In an event-triggered system, when an error signal exceeds a specified time-varying threshold, it indicates the occurrence of a typical event.The global asymptotic stability of the event-triggered closed-loop system and the boundedness of the minimum inter-event time can be guaranteed.Based on the linear quadratic optimal regulator, the actuator selects the optimal displacement only when an event occurs.A simulation example is finally used to verify that the effectiveness of such a control strategy can enhance the system performance.
文摘血栓性微血管病(Thrombotic microangiopathy,TMA)是一组以非免疫性血管内溶血和缺血性器官功能障碍为特征的疾病,包括原发性血栓性微血管病[如血栓性血小板减少性紫癜(Thrombotic thrombocytopenic purpura,TTP)等]和继发性血栓性微血管病[如弥散性血管内凝血(Disseminated intravascular coagulation,DIC)等]。目前血管性血友病因子裂解蛋白酶(A disintegrin and metalloprotease with a thrombospondin type 1 motif member 13,ADAMTS13)在TTP诊疗中的作用相对明确,但是否在其他血栓性微血管病的诊疗中存在同样重要的价值并不清楚,ADAMTS13作用于相关血栓性微血管病的具体机制较为复杂。ADAMTS13在DIC、系统性红斑狼疮肾炎以及严重肝损伤等相关血栓性微血管病中活性均有不同程度的降低,或许可作为该类疾病的辅助诊断指标。本文主要从ADAMTS13与血栓性微血管病的发病机制及其在相关血栓性微血管病诊疗中的应用价值进行综述。
