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1 October 2004
Abstract A simple method is proposed to design PI/PID controllers for stable first-order plus time delay (FOPTD) systems. The method is based on matching the coefficient of corresponding powers of s… Continue Reading
1 March 2014
In this paper we investigate a three species ecosystem consisting of a prey, a predator and a top predator. The predator survives on the prey and the top predator survives on both the prey and the… Continue Reading
In this paper a computationally efficient steady state model for a typical refrigeration reciprocating compressor is proposed. The plenum cavity is modelled using the acoustic plane wave theory,… Continue Reading
In this research article, a two prey-one predator system with intra specific competition and self-interaction is investigated and its dynamics are mathematically analyzed. The positivity of the… Continue Reading
In this paper, we consider an ecological model consisting of prey and predator along with special effect of diffusion and random perturbations. The Routh-Hurwitz principle and Lyapunov’s function are… Continue Reading
Abstract The present work focuses on the dynamics of a two prey and one predator model where the preys are subjected to the logistic growth law and the predator is subjected to the mortality rate and… Continue Reading
1 January 2011
In this paper, we propose and analyze a mathematical model to study the dynamics of a fishery resource system with stage structure in an aquatic environment that consists of two zones namely… Continue Reading
I n this article, a mathematical formulation is proposed and analyzed to study the dynamics of a prey predator model with stage structure of predators (adult and juvenile) in the habitat consisting… Continue Reading