Journal ArticleDOI
Qualitative simulation of chemical process systems: Steady‐state analysis
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In this paper, the mauvais fonctionnement and l'effet des erreurs se propagent par causalite d'une variable a l'autre, en satisfaisant finalement les contraintes du procede en regime permanent.Abstract:
Dans une analyse qualitative le mauvais fonctionnement et l'effet des erreurs se propagent par causalite d'une variable a l'autre, en satisfaisant finalement les contraintes du procede en regime permanent. Les contraintes des series d'equations algebriques, sont representees par des equations de confluence stationnaires. La causalite est representee par le graphe oriente signe etendu (Extended Signed Directed Graph: ESDG)read more
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Journal ArticleDOI
Automatic qualitative trend simulation method for diagnosing faults in industrial processes
TL;DR: An automatic method of qualitative simulation for industrial processes to predict the steady-state measurement patterns arising from different faults by automatically generating new qualitative equations from the generic quantitative model without the need of knowing the value of its parameters.
Journal ArticleDOI
Non-causal versus causal qualitative modelling and simulation
Louise Travé-Massuyès,Kouamana Bousson,J.-M. Evrard,François Guerrin,B. Lucas,A. Missier,M. Tomasena,L. Zimmer +7 more
TL;DR: In this article, the basic concepts used in both approaches, in addition to representation formalisms and algorithms, are discussed, as well as the representation formalism and algorithms used to represent causality explicitly.
Journal ArticleDOI
Qualitative modelling of chemical processes: a weighted digraph (WDG) approach
R.F. Vianna,C. McGreavy +1 more
TL;DR: The methodology is able to provide a very satisfactory qualitative description of the dynamic trajectories of the systems and avoid ambiguous solutions and offers the prospect of being able to anticipate problems at the preliminary process design stage and points to ways of overcoming them.
Book ChapterDOI
Computational Challenges in Systems Biology
TL;DR: This chapter examines the challenges and some of the recent advances in computational systems biology and advanced research in coarse graining will pave the way for progress in the development of multiscale multidomain modeling that can connect fundamental research in network biology to clinical research.
Journal ArticleDOI
Qualitative Algebra and Graph Theory Methods for Dynamic Trend Analysis of Continuous System
TL;DR: A qualitative affection equation based on multiple conditions is proposed, which enables the signed direct graphs to describe complex systems better and improves the fault diagnosis resolution.