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This paper reports the systematic selection of process and controller configurations of four distillation columns operated at purification stage in an olefin petrochemical plant. These columns were demethanizer, deethanizer, depropanizer #1 and depropanizer #2 columns, which separated ethane (C2H6) and propane (C3H8) from methane (CH4) and other heavier components (i.e. C4+). The interconnection of...
This paper describes a linear programming (LP) approach for solving the network utility maximization problem. The developed approach is inspired by a convex relaxation technique from non-convex polynomial optimization methods. In contrast to most of the existing results where concavity of the network's utility function is often assumed, the proposed LP approach may still be used to solve the NUM problem...
In this paper, an application of nonlinear adaptive filter on EEG-SSVEP extraction for brain-controlled wheelchair is proposed. In the experiment, four subjects with age about 25±1 years were tested. The experimental results in this work show that the implementation of the proposed method achieves a very significant statistical improvement in extracting peak amplitude features. After a short time...
In this paper, an alternative design technique for vehicle's active suspension system using model reference adaptive control method is presented. To verify the performance of the design controller, a skyhook damping system was adopted as the reference model. An adaptive controller for a quarter-size vehicle's active suspension system is designed. The controller parameters are determined using Lyapunov...
In this paper, the development of an unmanned autonomous forklift is discussed. A system configuration using vision, laser ranger finder, sonar, etc. for autonomous navigation is presented. The kinematics of a spin-turn mechanism is analyzed first, and then the obtained kinematics equations are transformed to the equations represented by path variables. These equations are nonlinear state equations...
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