Learn More
In this study, a multivariable control structure is developed to simultaneously control the concentrations of cells and of one of the nutrients in an animal cell cultivation system operated in perfusion. A cascade control structure is considered consisting of (i) an inner loop with a partially linearizing feedback controller, tuned so as to ensure(More)
This paper presents an effective and robust structure for the estimation and control of perfusion cell cultures, in which the cells and glucose concentrations are simultaneously controlled by manipulating the dilution and bleed rates. Firstly, a partially linearizing feedback controller is designed to ensure an approximately linear decoupled dynamics(More)
This paper intends to demonstrate the development of an easy-to-use local human-machine interface that would allow any user to control distinct types of service robots, intuitively. This interface is based on the Nintedo Wii remote controller and consists of three operating modes: a steering wheel, an infra-red monitor and a movement identifier. These modes(More)
  • Idália Maria Brasil BurlamaquiI, Conceição Aparecida DornelasI, +4 authors Lusmar Veras RodriguesV
  • 2010
Purpose: Test immersion of microscopy samples in water as an aid to visualizing and quantifying aberrant crypt foci (ACF) in rat colon mucosa. Methods: Carcinogenesis was induced with azoxymethane in Wistar rats kept on a conventional diet or a hypercaloric diet containing unsaturated fat. Fifteen weeks after induction, colon samples were retrieved and(More)
This paper presents a multivariable robust control structure for perfusion animal cell cultures. The control structure assumes a cascade form, where a linearizing feedback controller is used in the inner loop and linear controllers are used in the outer loops, to simultaneously control the cells concentration and the glucose concentration in the bioreactor.(More)