Babu Joseph

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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)
In this tutorial, we discuss approaches to control of one or more primary variables in a process using secondary measurements. This approach is useful when the primary variable is not easily measured, or has large time delays or lags associated with it. It is also useful when the secondary measurements contain information about disturbances that affect the(More)
BACKGROUND Human immunodeficiency virus (HIV) infection is one of the most debilitating conditions which have affected nearly 32 million people across the globe. Antiretroviral therapy (ART) is the standard care given to the HIV positive individuals. But the patient adherence to ART is found to be very less as per previous studies. Complementary and(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)
Measurement error due to sensor degradation (fouling, mis-calibration etc.) is more difficult to identify compared to catastrophic sensor failure. Passive methods previously proposed for sensor-level monitoring are based on power spectrum or multi-scale analysis of sensor data. These methods have limitations caused by not accounting for various noise(More)
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