Abstract Titanium and its alloys have been widely used for clinical applications because of their biocompatibility exceptional chemical inertness, in addition to outstanding osseointegration characteristics. They are well known form a robust protective film on the surface that provides high corrosion resistance with surrounding environment. Although this passive state titanium-based materials i...

Many physical systems contains fast and slow phenomenons. In this paper we propose a dynamic neural networks with different timescales to model the nonlinear system. Passivity-based approach is used to derive stability conditions for neural identifer. Several stability properties, such as passivity, asymptotic stability, input-to-state stability and bounded input bounded output stability, are g...

The paper deals with connections between optimality and passivity-like properties in discrete time. The problem is set in the framework of differential/difference representations of discrete-time dynamics. The Hamilton–Jacobi–Bellman equality associated with a given cost and the corresponding optimal control solution are characterized. On these bases the connection with u-average passivity is c...

This work was supported in part by the Office of Naval Research under Grant F-149. Abstract An experimental and theoretical comparison of passivity-based and input-output linearization controllers for induction motors is presented. The comparison is done taking into account saturation of the magnetic material in the main flux path of the induction motor. Experimental results show that the use ...

In this paper two problems arising in the digital passive scheme for telemanipulation presented in [5] are addressed. At first, we show how to preserve system passivity in presence of quantization error introduced by position sensor (i.e. encoders) by introducing energy dissipation. Then, we introduce a scheme for a redundant communication channel that will compensate for missed packets improvi...