<p style='text-indent:20px;'>This paper is concerned with a linear quadratic optimal control for class of singular Volterra integral equations. Our framework covers the problems fractional differential Under some necessary convexity conditions, an exists, and can be characterized via Fréchet derivative functional in Hilbert space or maximum principle type conditions. However, these (equiv...

Recording the variation of joint angles as a feedback to the control unit is frequent in articulated arms. In this paper, magnetic sensor AS5045, which is a contactless encoder, is employed to measure joint angles of 6R robot and the performance of that is examined. The sensor has a low volume, two digital outputs and provides a high resolution measurement for users; furthermore its zero positi...

The proportional and derivative nonlinear potential feedback controls via piezoelectric sensor and actuator layers are used. A simple and consistent model combining the geometrical nonlinear affects and the feedback control of a piezoelectric/elastic/piezoelectric sandwich beams is derived. A mathematical methodology based on the multiple scales method for nonlinear vibration control of seconda...

During the past few decades, biomedical modeling techniques have been applied to improve performance of a wide variety of medical systems that require monitoring and control. Diabetes is one of the most important medical problems. This paper focuses on designing a state feedback controller with observer to improve the performance of the insulin control for type 'I' diabetic patients. The dynami...

This paper studies the design of feedback controllers for trajectory tracking in single-inputlsingle-output nonlinear systems X = f (x ) + g(x) u, y = h(x). A nonlinear transformation of the form z, = K ( X ) + X(x) u that transforms this nonlinear input/output system into a linear system is first constructed. On the basis of this transformation, an approach for designing control laws for traje...