This work is focused on a model predictive control (MPC) based approach for the regulation of systems whose actuators are subject to loss effectiveness. Such degradation process, evolution assumed be measurable and predictable, can lead breakdown whenever certain thresholds exceeded. Within this context, if problem defined with ad hoc operational constraints and/or running costs, intrinsic MPC ...

In this work, we investigate the soliton scattering problem for anti-kink/kink and kink/anti-kink configurations. To end, employ two distinct methods, full simulation collective coordinates, compare them. We apply coordinate approximation method to describe both configurations in hybrid model show that, similar polynomial models [Formula: see text] text], has limitations with respect initial ve...

in conventional cultivation of sugar beet the weeding and crust breaking are mostly performed manually. the objectives of this research were to design, fabricate and evaluate a soil crust breaker and weeding implement equipped with a detecting sensor. each unit consisted of a distance detecting sensor and a hydro-motor for driving the blades and pneumatic valves for moving the blades. the hydro...

Similarity reductions of the coupled nonlinear Schrödinger equation and an integrable version of the coupled Maxwell-Bloch system are obtained by applying non-translational symmetries. The reduced system of coupled ordinary differential equations are solved in terms of Painlevé transcendents, leading to new exact self-similar solutions for these integrable equations. PACS numbers: 02.30.Ik., 02...

In this work, applications of exergy and economic concepts to compression, heat exchange, and separation processes were used for calculation of the irreversibility rate, thermodynamic efficiency, and internal rate of return (IRR) of the profitability. A case study based on a real process, the purification of 1,2dichloroethane (DCE) in a high-purity distillation column, is presented. This column...

Multi-scale process modeling is very appealing methodology for process optimization since it highlights certain issues that remain unexplored with conventional methodologies and debottlenecks certain potentialities that remain unexploited in chemical plants. In this work, a kinetic model with 2400 reactions and 140 species is implemented in a proper reactor network to characterize the thermal f...

We define and study a recurrence relation in Z, called the hexahedron recurrence, which is similar to the octahedron recurrence (Hirota bilinear difference equation) and cube recurrence (Miwa equation). Like these examples, solutions to the hexahedron recurrence are partition functions for configurations on a certain graph, and have a natural interpretation in terms of cluster algebras. We give...