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In this paper, a simple online identification method for single-input single-output systems utilizing the idea of sliding mode control is proposed. The method uses a simplified model with an adjustable parameter of the plant, adjusts the parameter so that the error between outputs of the plant and the model for a step input converges to zero, and gives an identification result as the adjusted parameter...
In ambulatory surgery, anesthetic drugs must be administered at a suitable rate to prevent adverse reactions after discharge from the hospital. To realize more appropriate anesthesia, we have developed a hypnosis control system, which administers propofol as an anesthetic drug to regulate the bispectral index (BIS), an electroencephalography (EEG)-derived index reflecting the hypnosis of a patient...
In this paper, we study indices based on electroencephalogram (EEG) for estimating effect of electroconvulsive therapy (ECT) on patients with depression. ECT is an effective treatment for psychiatric disorders such as depression, schizophrenia, and applied to patients who fail to respond to drug therapy. Since the parameters of ECT such as intensity, duration, and timing of electrical simulation are...
For the purpose of maintaining hypnosis level of patients during general anesthesia appropriately, we have developed a hypnosis control system with a function of online identification of individual parameters. As the control strategy, model predictive control, which can take the dead time included in the bispectral index (BIS) response to propofol infusion into account rigorously, is used. The online...
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