The robust stabilization is studied for two dimensions discrete time singular systems described by the second FornasiniMarchesini models (2-D SFMMII) with uncertainty parameters. A new sufficient condition of the robust stabilization of 2-D SFMM-II is presented. Based on this new criterion a desired state feedback controller can be constructed by solving a set of linear matrix inequality (LMI) ...

In this paper, the technique of local linear dynamics assignment is presented, which complements the powerful Interconnection and Damping Assignment Passivity Based Control (IDA-PBC) methodology. In IDA-PBC, nonlinear state feedback controllers are designed by matching the system’s dynamics with a desired Port-Hamiltonian (PH) state representation. The latter consists of an energy function, whi...

Abstract Closed-loop supply chains are complex systems as they involve the seamless backward and forward flow of products information. With advent e-commerce online shopping, there has been a growing interest in product returns associated impact on inventory variance bullwhip effect. In this paper, novel four-echelon closed-loop chain model is presented, where base-stock replenishment policies ...

ABSTRACT. After stable sale in the second stage of product life cycle, the sale will decrease gradually. This paper deals with competition in the last stage of product life cycle. A differential game model will be set up for competition in this stage. We base the dynamics on Lanchester type competition and natural decrease of sales. Because the length of product life will be affected by the adv...

abstract background: the loop colostomy is one of the most popular techniques used as a protective maneuver for a distal anastomosis and/or temporary fecal diversion. we are introducing the use of a full thickness skin bridge under the large bowel instead of a glass rod which alleviates problems such as protrusion of the large bowel, retraction of the bowel into the abdomen after removing the r...

We derive a minimal set of Feynman rules for the loop amplitudes in unitary models of closed strings, whose target space is a simply laced (extended) Dynkin diagram. The string field Feynman graphs are composed of propagators, vertices (including tadpoles) of all topologies, and leg factors for the macroscopic loops. A vertex of given topology factorizes into a fusion coefficient for the matter...

A methodology to improve the stability robustness of feedback control systems designed using direct eigenspace assignment techniques is presented. The method consists of considering the sensitivity of the minimum singular value of the return difference transfer matrix at the plant input to small changes in the desired closed-loop eigenvalues and the specified elements of the desired closed-loop...

We consider the H∞ almost output synchronization and regulated output synchronization problem for heterogeneous directed networks with external disturbances where agents are introspective (i.e. agents have access to a part of their own state). A decentralized protocol is designed for each agent, without exchanging internal controller states with neighboring agents, to achieve output synchroniza...

Recent papers in the concept of Supply Chain Network Design (SCND) have seen a rapid development in applying the stochastic models to get closer to real-world applications. Regaring the special characteristics of each product, the stracture of SCND varies. In tire industry, the recycling and remanufacturing of scraped tires lead to design a closed-loop supply chain. This paper proposes a two-st...

In this paper, an efficient method is presented to control the attitude of a satellite with ON-OFF actuator. The main objective of this novel method is to control the amplitude of the limit cycle which commonly appears in the steady state of such systems; and at the same time by consideration of real actuator constraints, reduce the fuel consumption of system. The Proposed method is a combinati...