Babu Joseph

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The objective of this paper is to address some of the theoretical and practical issues related to the implementation of two stage model predictive control schemes such as LP-MPC and QP-MPC. Single stage QDMC has the drawbacks of steady state offsets, inconsistent setpoints and does not take into account economic objectives. The addition of another stage on(More)
Introduction Although realistic simulations can provide valuable experience for the student learning control theory, the importance of actual laboratory experiments cannot be understated. Real experiments bring with them valuable lessons on the effects of noise, control constraints, nonlinear effects, and time-varying parameters on control system(More)
This article examines the operational characteristics of the injected pultrusion (IP) process using a bench-scale unit. The distributed, nonlinear nature of the process makes routine process operations and quality control difficult. In our prior work [1], a 3-dimensional dynamic model based on mass, momentum and energy transport was developed. This(More)
This article describes a set of virtual and real experiments used to supplement an undergraduate course in process control. By integrating laboratory exercises with the course, students observe the close relationship between theory and application. The open-ended experiments encourage creativity and allow students to explore various control system design(More)
Production of cold active lipase by semisolid state fermentation involves the use of agroindustrial residues. In the present study, semisolid state fermentation was carried out for the production of cold active lipase using Micrococcus roseus, isolated from soil samples of Gangotri glaciers, Western Himalayas. Among various substrate tested, groundnut oil(More)
Psychrotropic Bacillus sphaericus producing solvent stable cold-active lipase upon growth at low temperature was isolated from Gangotri glacier. Optimal parameters for lipase production were investigated and the strain was able to produce lipase even at 15 °C. An incubation period of 48 h and pH 8 was found to be conducive for cold-active lipase production.(More)
This paper deals with the identification of linear systems using input-output response data. Specifically we focus on nonparametric (finite impulse or step response, FIR or FSR) models widely used in model predictive control. A polynomial model is proposed to reduce the number of parameters needed to represent the model. This leads to parsimonious, yet(More)