Construction of Initially Marked Traps for Scoped and Reened Petri Boxes

Construction of Traps for Re ned Petri Boxes

Traps are structurally deened subnets of a Petri net with the property that once a trap is marked (i.e., carries at least one token), it will remain marked in any successive marking. The paper shows how to synthesise initially marked traps for a Petri Box for the reenement and the scoping operation, from the characteristics of its constituents.

Effect of Follicular Unit Extraction on the Donor Area

BACKGROUND Hair restoration surgery is one of the most commonly performed cosmetic surgery procedure in men. The main aim of the study was to know the effect of follicular unit extraction (FUE) follicular unit extraction (FUE) on donor area in terms of hair mass/density. METHODS Ten male patients undergoing hair restoration by FUE were included. In each patient, ten boxes of 1 cm2 each were ...

A Petri-net based modeling tool, for analysis and evaluation of computer systems

Petri net is one of the most popular methods in modeling and evaluation of concurrent and event-based systems. Different tools have been created to support modeling and simulation of different extensions of Petri net in different applications. Each tool supports some extensions and some features. In this work a Petri net based modeling and evaluation tool is presented that not only supports dif...

Petri Charts: an Alternative Technique for Hierarchical Net Construction

In this paper, we present a new formalismfor modelling concurrent systems, called Petri charts, which is based on Petri nets and statechart principles. It aims at beneeting from the power of both methods in order to provide a modelling method that has substantial expressive power and abstraction function-alities, which are necessary for introducing a formal method into the eld of modelling real...

Construction and Characterization of a Lux-Marked Phenanthrene Degrading Bacterium