In this paper, stabilization of the structural system against earthquake is presented. Because the conventional PD controller is popular and simple in design, our controller is based on PD controller. The main problem of such a controller is its inability to produce desired response and instability against variations in the properties of the structural system. To obviate this issue, the neu...

We investigate families of languages de%ned by closure under operations generalized from models of gene descrambling in stichotrichous ciliates. We speci%cally consider languages that are closed under the synchronized insertion and deletion operations as well as languages closed under the hairpin inversion (hi) operation. Biologically, this studies sets of genes that cannot be further descrambl...

In recent years, closed-loop supply chain (CLSC) operation has been an important method to recover waste materials and products for resource conservation and environmental protection and paid more attention in industry and academia. We establish a dynamic model for closedloop supply chain with product recovering with the consideration of some uncertainties including remanufacturing rate, dispos...

This paper deals with a medium-voltage distribution network. The feeders in the open-loop arrangement are changed to the closed-loop arrangement with the aim to improve reliability of the power supply. The paper focuses on the analysis of transient and steady-state operation in the closed-loop that is established by connecting feeders supplied from two different transformers located in the same...

the use of micro-controllers in actuators provides extended flexibility for on-line data acquisition and sophisticated control implementation. however, attempts to utilize the excellent features of induction motor that is deemed by its strength, robustness, high torque, and relatively low cost in actuators face a fundamental control design challenge. the purpose of this paper is to introduce th...

This paper explores the experimental issues associated with the implementation of the recently developed generalized complementary flux constraint (GCFC) flux-biasing scheme on a spacecraft reaction wheel that is magnetically suspended by a low-loss active magnetic bearing (AMB). Implementation of the GCFC depends fundamentally on the ability to estimate the electromagnet flux. Once addressed, ...

in this paper, a new analytical method to find a near-optimal high gain controller for the non-minimum phase affine nonlinear systems is introduced. this controller is derived based on the closed form solution of the hamilton-jacobi-bellman (hjb) equation associated with the cheap control problem. this methodology employs an algebraic equation with parametric coefficients for the systems with s...