the purpose of this study was to examine the effect of self-control feedback on relative and absolute timing through observational and physical practices. participants (n=90) were randomly assigned to physical and observational practice (self-control, yoked, and instructor kr) groups. they practiced a sequential timing task, which required participants to press four keys (2, 6, 8, and 4) respec...

We provide an alternative interpretation for the topological terms in physics by investigating the low-energy gauge interacting system. The asymptotic behavior of the gauge field at infinity indicates that it traces out a closed loop in the infinite time interval: (−∞, + ∞). Adopting Berry's argument of geometric phase, we show that the adiabatic evolution of the gauge system around the loop re...

In this paper a data-driven methodology based on the Virtual Reference Feedback Tuning is presented for the tuning of Internal Model Controllers. A data based test is presented to check the robust stability of the controller in the loop, taking advantage of the control structure. Two different examples are shown where the presented method successfully controls a non-minimum phase discrete time ...

In this paper, we evaluate the stability margin of a Fiat Dedra engine model to explore possible applications of theoretical achievements in the parametric approach to robust control problems. The study is based on two versions of the model with uncertainties. One is the original model, which has a multilinear characteristic polynomial, while the other is an affine-linearized model which is obt...

This paper concerns the H∞ loop-shaping design for multiloop operation of paralleled DC/DC converters. The preand post-compensators are designed to shape the nominal plant model to achieve the desired performance. Then, the H∞ controller is synthesized in order to achieve the robust stability and robust performance of the system in the presence of uncertainties. Finally, the H∞ controller absor...

For input nonaffine nonlinear control systems, the minimum phase property of the system in general depends on the control law. Switching or discontinuous controllers may offer advantages in this context. In particular, there may not exist a continuous control law which would keep the output identically equal to zero and for which the zero output constrained dynamics are locally stable, whereas ...

ticl4, ammonia, inorganic salts as raw material, nanometer composite-crystal tio2 powders were synthesized by two-step chemical method. precursors were crystallized with different phase and stable composite-crystal tio2 with anatase and rutile phase was prepared at low temperature. quantitative control of crystal phase was realized. remarkable factors including reaction ph value, reaction time,...

recovery method has been quite popular for aircraft control system design. In the proposed method we derive an optimal control law to minimize a generalized linear quadratic performance index to achieve better recovery quality in the LTR process and better some performance in time-domain responses and frequency-domain responses as well. The resulting controller can achieve a prescribed degree o...