Following terminology used in adaptive control , we distinguish between indirect learning methods, which learn explicit models of the dynamic structure of the system to be controlled , and direct learning methods, which do not. We compare an existing indirect method, which uses a conventional dynamic programming algorithm, with a closely related direct reinforcement learning method by applying ...

Stimulated by the growing demand for improving the reliability and performance of systems, fault tolerant control has been receiving signiicant attention since its goal is to detect the occurrence of faults and achieve satisfactory system performance in the presence of faults. To develop an intelligent fault tolerant control system, we begin by constructing a design model of the system using a ...

Purpose We examine the interaction between trait resilience and control in predicting coping and performance. Drawing on a person–environment fit perspective, we hypothesized resilient individuals would cope and perform better in demanding work situations when control was high. In contrast, those low in resilience would cope and perform better when control was low. Recognizing the relationship ...

Stimulated by the growing demand for improving the reliability and performance of systems, fault-tolerant control has been receiving significant attention since its goal is to detect the occurrence of faults and achieve satisfactory system performance in the presence of faults. To develop an intelligent fault-tolerant control system, we begin by constructing a design model of the system using a...

The majority of processes met in the industrial practice have stochastic characteristics and eventually they embody non-linear behaviour. Traditional controllers with fixed parameters are often unsuitable for such processes because their parameters change. The changes of process parameters are caused by changes in the manufacturing process, in the nature of the input materials, fuel, machinery ...

In this paper a small scale wind generator based on a permanent magnet synchronous machine (PMSM) and associated with an indirect maximum power point tracking (MPPT) algorithm is proposed. Choosing an energy conversion active structure and a sensorless PMSM, to control the system, a speed estimator is required. Facing to other methods, the extended Kalman filter (EKF) model-based estimator allo...

the purpose of this study was to investigate the mediating role of learning goal orientation at the individual, group and organizational level in the relationship of transformational leadership with adaptive performance. the sample consisted of 175 employees of a service organization. fitness of the proposed model and indirect effects was examined through structural equation modeling and bootst...

Citation: Uchida S, Yamamoto H, Okada I and Sasaki T (2018) A Theoretical Approach to Norm Ecosystems: Two Adaptive Architectures of Indirect Reciprocity Show Different Paths to the Evolution of Cooperation. Front. Phys. 6:14. doi: 10.3389/fphy.2018.00014 A Theoretical Approach to Norm Ecosystems: Two Adaptive Architectures of Indirect Reciprocity Show Different Paths to the Evolution of Cooper...

Since the introduction of adaptive systems for corrective measures, static and dynamic disturbances have been reduced through manipulation surface shape in a well-controlled manner. One important application where are highly needed is future photo-lithography machines, particularly wafer table affect overlay focus performance. To reduce errors, dense array actuators must be integrated into to a...