A discrete event system, is a dynamical system whose state evolves in time by the occurrence of events at possibly irregular time intervals. Place-transitions Petri nets (commonly called Petri nets) are a graphical and mathematical modeling tool applicable to discrete event systems in order to represent its states evolution. Timed Petri nets are an extension of Petri nets that model discrete ev...

Discrete-event simulation represents modeling, simulating, and analyzing systems utilizing the computational and mathematical techniques, while creating a model construct of a conceptual framework that describes a system. The system is father simulates by performing experiment(s) using computer implementation of the model and analyzed to draw conclusions from output that assist in decision maki...

This paper proposes the use of a discrete event system to model the navigation of a homogeneous population of mobile robots moving in an environment composed of a number of discrete sites. We derive results that relate the blocking and controllability properties of the automaton modeling the complete system with the blocking and controllability properties of the smaller dimension automata model...

Biological systems involving genetic reactions are large discrete event systems, and often contain certain species that occur in small quantities, and others that occur in large quantities, leading to a difficulty in modeling and simulation. Small populations inhibit the usefulness of utilizing differential equations to represent the system, while the large populations cause stochastic discrete...

Consider the interaction of populations, in which there are exactly two species, one of which the predators eats the other the prey thereby affecting each other , s growth rates. In the study of this growth rate dynamics Lotka-Volterra models have been used. This paper proposes a new modeling and analysis methodology which consists in considering the growth rate dynamics as a discrete event sys...

Surgical suits allocate a large amount of expenses to hospitals; on the other hand, they constitute a huge part of hospital revenues. Patient flow optimization in a surgical suite by omitting or reducing bottlenecks which cause loss of time is one of the key solutions in minimizing the patients’ length of stay[1] (LOS) in the system, lowering the expenses, increasing efficiency, and also enhanc...