This effort requires a better understanding of how complex situations are related to controller strategies and how controllers intervene to maintain control.
To maintain control during sensory stimulation, the controller automatically decreased LED stimulus intensity to accommodate sensory drive.
To maintain desired controller performance in the presence of process nonlinearity and non-stationarity, linear model-based control strategies become dependent upon the regular updating of a process model.
During input saturation, the role of the anti-windup scheme with the proposed dynamic feedback compensator is to maintain the controller states to be exactly the same as those without input saturation.
Five different control structures, based on the feedback and feedforward classic structures and on combinations of them, are evaluated both concerning to the ability of the controller to maintain (regulatory control) or to change the controlled variable to the new set-point (servo control) in a reasonable action time.
Collectively, these observations suggest that a low Treg response may allow some HIV controllers to maintain viral control with a strong cytotoxic HIV-specific T cell response, but might also contribute to the negative inflammatory consequences of generalized T cell activation in this setting (Figure 4).
Controller performance, i.e. the ability of the controller to maintain neuromuscular block constant at the setpoint and patient characteristics were similar in both groups.
It utilizes an internal oscillator to frequency control and a proportional integral (PI) controller to maintain voltage stability that is tuned by Kharitonov's theorem.
The aeration rate was controlled at 1 vvm by a mass flow controller to maintain dissolved oxygen (DO) level of minimum 40% for the efficient growth of fermentative microbes.
The actual concentration was then read by an O3 analyzer (model 400; Teledyne-Advanced Pollution Instruments, Inc., Thousand Oaks, CA), which fed a signal to a proportional, integral, derivative loop control, which then either opened or closed the mass flow controller to maintain the O3 concentration in the chamber at the desired level.
