The Experts below are selected from a list of 4245 Experts worldwide ranked by ideXlab platform
Joseph J. Winkin - One of the best experts on this subject based on the ideXlab platform.
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Asymptotic Behavior and Stability for Solutions of a Biochemical Reactor Distributed Parameter Model
IEEE Transactions on Automatic Control, 2008Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:This paper deals with the dynamical analysis of a tubular Biochemical Reactor. The existence of nonnegative state trajectories and the invariance of the set of all physically feasible state values under the dynamical equation as well as the convergence of the state trajectories to equilibrium profiles are proved. In addition, the existence of multiple equilibrium profiles is analyzed. It is proved that, under physically meaningful conditions, the system has two stable and one unstable equilibrium profiles.
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Dynamical analysis of a Biochemical Reactor distributed parameter model with time delay
2007 European Control Conference (ECC), 2007Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:This paper studies a tubular Biochemical Reactor model with time delay. The dynamics are described by partial functional differential equations. We prove the well-posedness of this system and existence of multiple equilibria. Next, we show the existence of periodic solutions bifurcating from trivial equilibrium profile.
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state trajectories and stability of equilibria of a distributed parameter Biochemical Reactor
Conference on Decision and Control, 2006Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:The dynamical analysis of a Biochemical Reactor distributed parameter nonlinear model is performed. The existence of nonnegative state trajectories and invariance of the set of all physically feasible state values under the dynamical equation, as well as the convergence of state trajectories to equilibrium profiles, are reported. In addition, it is reported that under physically meaningful conditions the system has two stable and one unstable equilibrium profiles.
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CDC - State Trajectories and Stability of Equilibria of a Distributed Parameter Biochemical Reactor
Proceedings of the 45th IEEE Conference on Decision and Control, 2006Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:The dynamical analysis of a Biochemical Reactor distributed parameter nonlinear model is performed. The existence of nonnegative state trajectories and invariance of the set of all physically feasible state values under the dynamical equation, as well as the convergence of state trajectories to equilibrium profiles, are reported. In addition, it is reported that under physically meaningful conditions the system has two stable and one unstable equilibrium profiles.
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Dynamical Analysis of a Tubular Biochemical Reactor Infinite-Dimensional Nonlinear Model
Proceedings of the 44th IEEE Conference on Decision and Control, 1Co-Authors: Mohamed Laabissi, Denis Dochain, Joseph J. Winkin, M.e. AchhabAbstract:The existence and uniqueness of the state trajectories (limiting substrate and living biomass) are analyzed for a tubular Biochemical Reactor nonlinear model. It is reported that the trajectories exist on the whole (nonnegative real) time axis and the set of all physically feasible state values is invariant under the dynamics equations. This set takes into account the positivity of the state variables as well as a saturation condition on the substrate. Conditions which guarantee the existence of at least one nontrivial equilibrium profile are reported.
Denis Dochain - One of the best experts on this subject based on the ideXlab platform.
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Analysis of the multiplicity of steady-state profiles of two tubular Reactor models
Computers & Chemical Engineering, 2018Co-Authors: Denis DochainAbstract:Abstract This paper deals with the analysis of two tubular Reactor models, the non-isothermal tubular Reactor model and a Biochemical Reactor model. It is mathematically shown in particular that multiple equilibrium profiles can be exhibited if the diffusion coefficients are large enough by considering regular perturbation arguments.
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Analysis of the multiplicity of equilibrium profiles in tubular Reactor models
IFAC-PapersOnLine, 2016Co-Authors: Denis DochainAbstract:Abstract: This paper deals with the analysis of the non isothermal tubular Reactor model. It is shown in particular and in line with similar studies on Biochemical Reactor models that multiple equilibrium profiles can be exhibited if the diffusion coefficients are large enough. The consequence on the stability of these equilibrium profiles is that these also exhibit the alternance of stable and unstable equilibrium profiles.
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Asymptotic Behavior and Stability for Solutions of a Biochemical Reactor Distributed Parameter Model
IEEE Transactions on Automatic Control, 2008Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:This paper deals with the dynamical analysis of a tubular Biochemical Reactor. The existence of nonnegative state trajectories and the invariance of the set of all physically feasible state values under the dynamical equation as well as the convergence of the state trajectories to equilibrium profiles are proved. In addition, the existence of multiple equilibrium profiles is analyzed. It is proved that, under physically meaningful conditions, the system has two stable and one unstable equilibrium profiles.
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Dynamical analysis of a Biochemical Reactor distributed parameter model with time delay
2007 European Control Conference (ECC), 2007Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:This paper studies a tubular Biochemical Reactor model with time delay. The dynamics are described by partial functional differential equations. We prove the well-posedness of this system and existence of multiple equilibria. Next, we show the existence of periodic solutions bifurcating from trivial equilibrium profile.
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state trajectories and stability of equilibria of a distributed parameter Biochemical Reactor
Conference on Decision and Control, 2006Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:The dynamical analysis of a Biochemical Reactor distributed parameter nonlinear model is performed. The existence of nonnegative state trajectories and invariance of the set of all physically feasible state values under the dynamical equation, as well as the convergence of state trajectories to equilibrium profiles, are reported. In addition, it is reported that under physically meaningful conditions the system has two stable and one unstable equilibrium profiles.
A. K. Drame - One of the best experts on this subject based on the ideXlab platform.
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Asymptotic Behavior and Stability for Solutions of a Biochemical Reactor Distributed Parameter Model
IEEE Transactions on Automatic Control, 2008Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:This paper deals with the dynamical analysis of a tubular Biochemical Reactor. The existence of nonnegative state trajectories and the invariance of the set of all physically feasible state values under the dynamical equation as well as the convergence of the state trajectories to equilibrium profiles are proved. In addition, the existence of multiple equilibrium profiles is analyzed. It is proved that, under physically meaningful conditions, the system has two stable and one unstable equilibrium profiles.
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Dynamical analysis of a Biochemical Reactor distributed parameter model with time delay
2007 European Control Conference (ECC), 2007Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:This paper studies a tubular Biochemical Reactor model with time delay. The dynamics are described by partial functional differential equations. We prove the well-posedness of this system and existence of multiple equilibria. Next, we show the existence of periodic solutions bifurcating from trivial equilibrium profile.
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state trajectories and stability of equilibria of a distributed parameter Biochemical Reactor
Conference on Decision and Control, 2006Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:The dynamical analysis of a Biochemical Reactor distributed parameter nonlinear model is performed. The existence of nonnegative state trajectories and invariance of the set of all physically feasible state values under the dynamical equation, as well as the convergence of state trajectories to equilibrium profiles, are reported. In addition, it is reported that under physically meaningful conditions the system has two stable and one unstable equilibrium profiles.
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CDC - State Trajectories and Stability of Equilibria of a Distributed Parameter Biochemical Reactor
Proceedings of the 45th IEEE Conference on Decision and Control, 2006Co-Authors: A. K. Drame, Denis Dochain, Joseph J. WinkinAbstract:The dynamical analysis of a Biochemical Reactor distributed parameter nonlinear model is performed. The existence of nonnegative state trajectories and invariance of the set of all physically feasible state values under the dynamical equation, as well as the convergence of state trajectories to equilibrium profiles, are reported. In addition, it is reported that under physically meaningful conditions the system has two stable and one unstable equilibrium profiles.
S S Jamuar - One of the best experts on this subject based on the ideXlab platform.
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development and simulation of Biochemical Reactor by using matlab
International Conference on Computer Modelling and Simulation, 2010Co-Authors: Arash Assadzadeh, S S JamuarAbstract:This research, an attempt has been made to develop and simulate a process model to describe the Biochemical process. Three important parameters that are desired to be controlled in the Biochemical Reactor are pH, dissolved oxygen (DO) and temperature. In earlier process model presented in literature, the effect of pH and DO change during process implementation is not taken into account. In this research, the Biochemical Reactor model was modified to include the effect of pH and DO with temperature. The new model contains those three parameters, which are mentioned before. The Biochemical Reactor model was implemented in MATLAB Ver 7.5 by using an S-function.
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UKSim - Development and Simulation of Biochemical Reactor by Using MATLAB
2010 12th International Conference on Computer Modelling and Simulation, 2010Co-Authors: Arash Assadzadeh, S S JamuarAbstract:This research, an attempt has been made to develop and simulate a process model to describe the Biochemical process. Three important parameters that are desired to be controlled in the Biochemical Reactor are pH, dissolved oxygen (DO) and temperature. In earlier process model presented in literature, the effect of pH and DO change during process implementation is not taken into account. In this research, the Biochemical Reactor model was modified to include the effect of pH and DO with temperature. The new model contains those three parameters, which are mentioned before. The Biochemical Reactor model was implemented in MATLAB Ver 7.5 by using an S-function.
Amos Benzvi - One of the best experts on this subject based on the ideXlab platform.
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reparameterization of inestimable systems with applications to chemical and Biochemical Reactor systems
Aiche Journal, 2008Co-Authors: Amos BenzviAbstract:Mathematical models of physical systems often have parameters that must be estimated from measured data. Inestimable models have more parameters than can be estimated from available data. In this work, a method for identifying inestimable parameters or parameter combinations is proposed. The method is based on partitioning the parameter space into estimable and inestimable subspaces. Parameter combinations in the inestimable subspace have little effect on measured values and can therefore be fixed at a nominal value. The number of effective parameters is thereby reduced to the dimension of the estimable subspace. The proposed method is applicable over a range of experimental conditions. Detailed examples, including a batch bioReactor and a three-phase Reactor system, are included for illustration. © 2008 American Institute of Chemical Engineers AIChE J, 2008