Results 31 to 40 of about 20,113 (245)

Vulnerability Analysis of LTE-R Train-to-Ground Communication Time Synchronization

open access: yesApplied Sciences, 2022
The time synchronization of LTE-R train-to-ground communication systems plays an important role in ensuring the safety of high-speed railways. In the LTE-R time synchronization process, existing problems, such as the time synchronization message ...
Yong Chen, Zhixian Zhan, Kaiyu Niu
doaj   +1 more source

Analysis of a multimachine flexible manufacturing cell using stochastic Petri nets

open access: yesAdvances in Mechanical Engineering, 2016
In this article, a generalized stochastic Petri net model is developed to analyze the performance of a multimachine flexible manufacturing cell. The analyzed flexible manufacturing cell consists of one or more machine(s), a single conveyor, and a single ...
Abdulrahman Al-Ahmari, Zhiwu Li
doaj   +1 more source

Application of Hierarchical Colored Petri Nets for Technological Facilities’ Maintenance Process Evaluation

open access: yesApplied Sciences, 2021
The high reliability of modern engineering systems is achieved by performing predictive maintenance. Mathematical models based on stochastic timed colored Petri nets are an effective tool for developing complex production processes for Industry 4.0. This
Sergey P. Orlov   +2 more
doaj   +1 more source

Stochastic Decision Petri Nets

open access: yes, 2023
We introduce stochastic decision Petri nets (SDPNs), which are a form of stochastic Petri nets equipped with rewards and a control mechanism via the deactivation of controllable transitions. Such nets can be translated into Markov decision processes (MDPs), potentially leading to a combinatorial explosion in the number of states due to concurrency ...
Florian Wittbold   +4 more
openaire   +3 more sources

Modeling and performance analysis of the emergency rescue logistics system based on Petri nets

open access: yesJournal of Hebei University of Science and Technology, 2017
In order to more effectively analyze the performance of logistics emergency rescue system, based on analyzing the characteristics and main functions of the Petri net and its advantage of describing asynchronous concurrent random image system, this paper ...
Mingxin YANG, Min WANG, Ying QU
doaj   +1 more source

Boundedness on Stochastic Petri Nets

open access: yesRevista Matemática Complutense, 1993
Stochastic Petri nets generalize the notion of queueing system [see \textit{J. L. Peterson}, Petri net theory and the modelling of systems (1981; Zbl 0461.68059), or \textit{M. Silva}, \textit{J. Martinez}, \textit{P. Ladet} and \textit{H. Alla}, RAIRO, Tech. Sci. Inf. 4, 113-126 (1985; Zbl 0558.68054) for general references].
Campos, J., Plo, F., San Miguel, M.
openaire   +3 more sources

Business Process Modelling based on Petri nets

open access: yesMATEC Web of Conferences, 2017
Business process modelling is the way business processes are expressed. Business process modelling is the foundation of business process analysis, reengineering, reorganization and optimization.
Qin Jianglong   +3 more
doaj   +1 more source

Stepwise Verification for the BPMN With Timed and Stochastic Process Using a Colored Generalized Stochastic Petri Net

open access: yesIEEE Access, 2022
Internet of Things (IoT) technologies have been increasingly developed for real-time application in manufacturing processes to address heterogeneous devices and software effectively.
C. Dechsupa, W. Vatanawood, A. Thongtak
doaj   +1 more source

A Meso-Scale Petri Net Model to Simulate a Massive Evacuation along the Highway System

open access: yesFuture Transportation, 2023
Natural disasters may require that the residents of the affected area be evacuated immediately using a potentially damaged infrastructure. In this paper, we developed a mesoscopic simulation modeling approach for modeling traffic flow over a large ...
Hamzeh Qabaja   +3 more
doaj   +1 more source

Internet enabled modelling of extended manufacturing enterprises using the process based techniques [PDF]

open access: yes, 2004
The paper presents the preliminary results of an ongoing research project on Internet enabled process-based modelling of extended manufacturing enterprises.
Cheng, K, Popov, Y
core   +1 more source

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