Edson Denner Zandonadi Ferreira

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Many problems in adaptive control can be divided into two parts; the first part is the control of plant dynamics, and the second is the control of plant disturbance. Very often, a single system is utilized to achieve both of these control objectives. The approach of this paper treats each problem separately. Control of plant dynamics can be achieved by(More)
In this study a simple model of the postural control system is implemented and its parameters are adjusted to explain the differences between Parkinson's disease patient's measures and healthy young adult's measures by performing simulations of spontaneous sway with center-of-pressure traces. An optimization procedure was performed varying four parameters(More)
The role of transfacetary screw in cervical spine surgery: technical note Since the rst description of cervical spine screw xation, techniques using sublaminar wire xation are intended to the rare cases with non-vertebral bone anchorage. Screw xation systems has gained widespread use in recent times. The techniques of lateral mass xation, cervical pedicle(More)
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