Combined algorithms that include both variable structure system and identification approaches are proposed in this paper for guidance of UAV. The approach is based on the application of the so called ‘‘shunt’’ – parallel feedforward compensator. A similar approach based on the feedforward compensator for stabilization of plants of any relative degree was proposed by Bartolini et al. [1]. It is ...

In this paper we develop a robust controller based on variable structure systems (VSS) control theory for the stabilization of a class of Underactuated Mechanical Systems. This controller is based on a noncollocated partial feedback linearization of the underactuated system with a particular choice of the additional control for which the design is made using the sliding mode approach. Simulatio...

Proteins that share a similar function often exhibit conserved sequence patterns. Sequence patterns help to classify proteins into families where the exact function may or may not be known. Research has shown that these domain signatures often exhibit specific three-dimensional structures. We have previously shown that sequence patterns combined with structural information, in general, have sup...

In industrial electric drive systems, it is common to find objects that need solve the problem of angular position control, moving object from one another asymptotically with no over-correction and guarantee. calculation maximum fast impact. This a multi-target optimization many different solutions. paper presents method constructing PMSM motor controller variable structure using dSPACE 1104 ca...

This Paper describes the generalised structure of Force-Sensor-less Power assist control (FSPAC) which is an essential technology to design a feedback control system in a human friendly way. Paper clarifies regarding generalised structure of Force-Sensor-less power assist control using two force observer. The Force, which is used to assist the control system is estimated by using encoders inste...

The article focuses on the issues of Load Frequency Control (LFC) under non-linear strategies in multi source multi area hydro thermal system. On practical perspective dead band, boiler dynamics, reheat steam turbine along with hydro turbine operating under two different area capacities are considered in the system. When subjected to random load variations in both the areas, the system exhibits...

in recent years, the main focus of health sector reforms in iran is the family physician and referral system plan. fundamental changes in the goals and strategies, has increased the necessity of the need to reform the organizational structure. this study tries to review and summarize all cases about the organizational structure of iran and its challenges in primary health care system.this study...

due to the fact that the error surface of adaptive infinite impulse response (iir) systems is generally nonlinear and multimodal, the conventional derivative based techniques fail when used in adaptive identification of such systems. in this case, global optimization techniques are required in order to avoid the local minima. harmony search (hs), a musical inspired metaheuristic, is a recently ...