Background: Opioids have been shown to affect learning and memory processes. Different protocols of morphine withdrawal can substantially vary in their success to prevent opioid induced impairments of cognitive performance. In the present study, we report the effects of single and repetitive ultra-rapid detoxification (URD) on spatial learning and memory in morphine addicted rats. Methods: Morp...

Repetitive learning control was examined for active vibration control of rotor. A novel modification of a gradient-based repetitive learning control algorithm was developed. The stability of the algorithm was studied and the algorithm was tested on a rotor test rig. The experiments showed that repetitive learning control attenuated efficiently rotor vibrations excited by rotor unbalances. In ad...

Multi-Input Multi-Output Repetitive Control Theory And Taylor Series Based Repetitive Control Design

The performance of systems that exhibit repetitive disturbances can be significantly improved using repetitive control. If the repetitive disturbance is periodic with respect to time, perfect asymptotic disturbance rejection can be achieved by well known methods. However, many systems have a repetitive nature with respect to a variable other than time. For this type of systems, we propose a del...

Objective: Some theories state that a deficiency in cognitive control makes people more vulnerable to the occurrence of repetitive negative thoughts. The present study was done to investigate the association between cognitive control based on switching and inhibition and repetitive thinking of rumination and worry and major depressive disorder and generalized anxiety disorder. Methods: Thirty ...

In this paper, we investigate the parameterization of all robust stabilizing repetitive controllers for single-input/single-output continuous time non-minimum phase systems. The repetitive control system is a type of servo mechanism designed for a periodic reference input. When repetitive control design methods are applied to real systems, the influence of uncertainties in the plant must be con...

Ultrahigh precision scanning has emerged as a promising and challenging technology in nanoscale measurement manipulation. Besides the requirement of dynamical tracking periodical references, existence control saturation, due to limited stroke microactuators, poses additional challenges for such systems. To address this problem, we propose repetitive structure with predictive antiwindup compensa...