The control problem of an industrial distillation column is studied. Just the top control loop is discussed in this paper. By means of data collected from the distributed control system (DCS), two soft sensors are first developed. Based on this work, an inferential control project was proposed, and an optimization framework added on it, to improve control performance further. This advanced proc...

A think-aloud method was used to examine the content of information available to working memory during narrative comprehension in a CHI population. Twenty severe CHI participants (>1 year post-injury) and 20 controls talked aloud after they read each sentence of story narratives. Trabasso and Magliano's (1996a) verbal protocol analysis was then used to code for the production of inferential and...

A modified quadratic partial least squares (MQPLS) algorithm based on non-linear constrained programming is proposed, in which a sequential unconstrained minimisation technique is employed to calculate the outer input weights and the parameters of inner relationship. Other existing quadratic partial least squares (QPLS) algorithms are also reviewed and compared with the proposed MQPLS in the ap...

A strategy for controlling product quality properties, subject to batch-to-batch and within batch disturbances is presented. The methodology is based on readily available measurements, information extracted from existing databases and a few simple identification experiments. This approach extends the mid-course correction control strategies to overcome model error when the process is affected b...