Global distribution of maternal causes of. death. A maternal death is defined as the death of a. woman while pregnant or within 42 days of. termination of pregnancy, regardless of the. site or duration of pregnancy, from any cause. related to or aggravated by the pregnancy or. its management.
There are two types of control systems namely: 1  Open loop control systems (non-feedback control systems) 2  Closed loop control systems (feedback control systems)
Static Control System. an automatic control system in which the error in the steady state is usually not equal to zero and depends on the load on the controlled system. Figure 1. Figure 1 shows a block diagram of a single-loop static control system consisting of a controlled system and a control unit. The latter consists of a measuring transducer, automatic controller, and actuating mechanism. The control action x2 (t) and external disturbances f(t) act on the controlled system.