Dissertations / Theses on the topic 'Procédés et systèmes industriels'
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Fayolle, Jean. "Validation de données et diagnostic des procédés industriels." Nancy 1, 1987. http://www.theses.fr/1987NAN10171.
Maquin, Didier. "Observabilité, diagnostic et validation de données des procédés industriels." Nancy 1, 1987. http://www.theses.fr/1987NAN10347.
Mendez, Azua Hector. "Synthèse de lois de surveillance pour les procédés industriels complexes." Phd thesis, Grenoble INPG, 2002. http://tel.archives-ouvertes.fr/tel-00198339.
Liu, Zhanhao. "Méthodes statistiques et variationnelles de modélisation préalable au contrôle de procédés industriels." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0086.
***Part 1 of the thesis is subject to unlimited confidentiality*** In this thesis, we aim to propose a methodology for analyzing industrial processes based on a large quantity of process data with statistical and variational methods. The objective is to identify the key factors which ensure the good functioning of industrial processes. It is a preliminary step for the automatic generation of process control law from the collected data. In the first part of this thesis, we presented the statistical analysis of a process of Saint-Gobain. At first, we applied some classical statistical tools (Principal component analysis, clustering and so on) to the process data, and linked the obtained information with the functioning of the process. Then, we analyzed a product quality measure (called target) with the collected process parameters. The target is weakly correlated with the parameters, so the hypothesis of linear model is rejected. A restricted list of parameters which contribute to the explaination of the target was identified by the statistical methods and validated by our industrial interlocutors. Afterwards, we tested a non-linear model method: the generalized additive model (GAM). The introduction of the non-linear terms improved the performance of our model, but it remained insufficient for the future applications. Following the intuition of the process engineers and operators, we focused on a noisy signal, tracked regularly in the plants, characterizing the good functioning of the process, and restoring the missing information of this signal may improve the model. In the second part of this thesis, we developed a total variation restoration method with an automatic choice of hyper-parameter. Furthermore, our proposition of hyper-parameter has a similar performance as the existing methods, and our estimation method of both hyper-parameter and restoration is well fitted for the real time processing of a large quantity of data. Based on the proposed method, we have developed some applications of pattern restoration and discontinuities detection for several industrial processes
Laouisset, Brahim. "Système intelligent d’aide à la conception pour le développement de procédés et de produits industriels : application à la maîtrise de procédé d'aiguilletage et à l'étude de biocomposites." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10089/document.
Most of the industrial design assistant tools that are available nowadays are based on the use of analytical and statistical models. Those methods enable to characterize the relations between the design factors and the quality criterions in order to predict the quality of a new product without doing new experimental tests. Nevertheless, because of the behavioural complexity of the product or the method, the uncertainty in the design process and the weak number of experimental data, those classical models are often less efficient to treat complex applications. As part of my doctoral thesis, we have essentially worked (si tu veux mettre au present we work) on the design of multifunctional composite materials made of fibres. In this context, we have improved the industrial design assistant tools in order to develop in a systematic way, new materials. For this, we propose an approach that not only uses the classical technics of data analysis but also the advanced calculation technics. By using those technics, we realized an integral system in UML language and an oriented object computer programming, that allow to identify the pertinent parameters of the method and of the structure of the composite material studied according to the desired functional properties. This system was applied to the control of a textile reinforcement process by needling and development of biocomposites materials which the mechanical and acoustical performances are simultaneously considered
Gau, Marie-Hélène. "Un système de conduite de procédés industriels ouvert et interactif : approche a l'aide de techniques SA-RT." Toulouse 3, 1994. http://www.theses.fr/1994TOU30176.
Cortes, Robles Guillermo. "Management de l'innovation technologique et des connaissances : synergie entre la théorie TRIZ et le Raisonnement à Partir de Cas. Application en génie des procédés et systèmes industriels." Phd thesis, Toulouse, INPT, 2006. http://oatao.univ-toulouse.fr/7523/1/cortesrobles.pdf.
Cortes, Robles Guillermo. "Management de l'innovation technologique et des connaissances : synergie entre la théorie TRIZ et le raisonnement à partir de cas : application en génie des procédés et systèmes industriels." Phd thesis, Toulouse, INPT, 2006. https://hal.science/tel-04576548.
Traditional problems solving methodologies like brainstorming, synectics, trial and error, etc. Find their limits when they are facing inventive problems or problems that could be described like contradictions. A contradiction exists when two different and mutually exclusive requirements, states or conditions in a system, have to be present and act together, with the aim to accomplish same objectives. Trade off is usually the most used way to solve this kind of problem, also characterized by a random search of solutions. These situations have a negative impact over performance, which could be improved by applying other methodologies and tools. The theory of inventive problem solving or TRIZ theory has the capacity to eliminate these negative aspects described above and to produce innovative solutions to contradictions. This approach, which is different from the traditional psychology based approaches, is knowledge based. The particular vision of TRIZ is based on the history of technological evolution. TRIZ considers innovation like a process which can be controlled and deployed systematically. Paradoxically, this knowledge based approach with transversal domain application, does not have the capacity to memorise, which is fundamental for learning. Consequently, knowledge that has been employed and created while solving inventive problems can not be reused. This drawback has a negative effect on problem solving performance while deploying TRIZ. Knowledge management has developed the capacity to identify, store and reuse knowledge. This is the core capacity of several knowledge management methodologies, among them is, the Case-Based Reasoning (CBR). The performance of this problem solving tool, lies essentially in its capacity to offer a pragmatic answer for specific domain problems. CBR systems solve a new problem by identifying its similarity to one or several previously solved problems stored in a memory and by adapting their known solutions. Since CBR application is domain specific, CBR cannot consider the solutions that have already been identified in others domains while solving new problems. This characteristic limits the CBR's capacity to propose innovative solutions to a problem. Besides, a shortcoming is revealed when a CBR system faces a problem that had not been solved in the past. If this situation occurs, the memory cannot find a similar problem and consequently, no solution is proposed. The limits and the complementarity observed between TRIZ and CBR are employed to propose a new model. This model presents an approach that combines the technological vision of TRIZ and the ability developed by CBR to memorize and to reuse knowledge. This synergy allows in the fist place, to steer the creative effort when facing inventive problems and in the second, to reuse knowledge that had been acquired in past problems. The capability of this new approach is illustrated by its application in process engineering and industrial engineering
Laforest, Valérie. "Technologies propres : méthodes de minimisation des rejets et de choix des procédés de valorisation des effluents : application aux ateliers de traitements de surface." Lyon, INSA, 1999. http://theses.insa-lyon.fr/publication/1999ISAL0118/these.pdf.
Currently, the essential part of the money invested by the industrialist is for the water treatment. In France, most of the 20 billions francs per year devoted to the water treatment is used for the industrial activity. The global management of effluents favour the integration of clean technologies (optimisation, change and modification of the production process) in order to reduce the pollution problem at its source. Our study aims at the introduction of clean technologies in the metal workshops (consumer and generator of water and chemicals) by the development of two data management methods, which lead to two decision support systems. The aim of the first one is to minimise both the water consumption and the wastewater disposal by optimising the production process (optimum yield and efficiency of the rinsing baths. The second one concerns the choice of valorisation techniques considering the valorisation objectives, the effluents characteristics and the parameters limiting the use of the techniques. Our approach fits into a global management method for the metal finishing industry wastewater. Its aim is to limit the quantity of wastewater generated, to valorise effluents and by this way to develop the clean technologies
Drame, Abdou Khadry. "Modélisation et analyse des procédés biologiques : application à la dépollution des eaux : théorie des systèmes asymptotiquement autonomes." Montpellier 2, 2005. http://www.theses.fr/2005MON20095.
Moscosa-Santillan, Mario. "Conception de systèmes de supervision pour le contrôle-commande des procédés : applications d'intérêt pédagogique, industriel et de recherche." Paris 6, 2000. http://www.theses.fr/2000PA066345.
Raad, Ibrahim. "Contribution à la définition d'une méthodologie d'analyse et de synthèse d'un processus industriel." Mulhouse, 1987. http://www.theses.fr/1987MULH0076.
Tchuenkam, Tchoneng Honoré. "Techniques formelles pour le développement de systèmes de conduite de procédés manufacturiers : abstraction, spécification, synthèse et optimisation." Nancy 1, 1991. http://www.theses.fr/1991NAN10413.
Pereyrol, Frédéric. "Interaction produit-procédé : extension de la modélisation de la commande avec suivi automatique du produit." Montpellier 2, 1993. http://www.theses.fr/1993MON20147.
He, Zhenglei. "Modélisation et optimisation des procédés de fabrication textile à l'aide des techniques intelligentes." Thesis, Lille 1, 2020. http://www.theses.fr/2020LIL1I061.
Textile manufacturing plays an important role in the world economy. While the globally increasing competition is stressing the textile companies to promote the manufacturing flexibility, as a trend of intelligent manufacturing in Industry 4.0, the future development of the textile manufacturing process will increasingly rely on shorter cycle and higher quality. However, the complicated intricate relationship between the large-scale parameter variables from a variety of textile processes makes it seem incredibly difficult. In order to overcome these issues, intelligent techniques are employed in this thesis to promote textile manufacturing from the process modeling and optimization.In this Ph.D. research, a thorough investigation and literature review regarding the previous studies on modeling and optimization of the textile manufacturing process using intelligent techniques. A series of the summarizations were determined in pros and cons, which provided a theoretical foundation and research direction for the subsequent studies. Three sub-studies thus were developed: A specific case study on textile ozonation process modeling using extreme learning machine (ELM), support vector regression (SVR) and random forest (RF) was developed, where the SVR models and RF models were found that both can well address the uncertain interrelationships of variables in the textile process modeling with less training data, but their requirement on training time is different. On the basis of the established RF models, a novel multi-criteria decision support system was then developed for textile optimization with the collaboration of the analytical hierarchy process (AHP) and the Deep Q-networks (DQN) algorithm, where the textile process is formulated as the Markov decision process (MDP) paradigm, and the application result showed that it can master the challenging decision-making tasks in the textile manufacturing process. To better address the growing complexity in this issue, the application of this developed system is further integrated into a multi-agent system for multi-objective optimization in the textile manufacturing process. The developed systems can optimize the textile process and help companies maintain competence in the trend of intelligent manufacturing in the textile industry
Abi, Chahla Gisèle. "Procédés de conversion matière/énergie et méthodologie de leur intégration optimale dans un territoire." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEM082.
The prime objective of this doctoral work is to assist geographically neighboring industries to evolve towards becoming an eco-industrial park (EIP). Indeed, circular economy, which is regenerative by design as opposed to the prevailing extractive linear model, is gaining momentum as an answer for migrating towards a sustainable paradigm. Many literature studies were conducted to assess the feasibility of heating networks based on industrial heat recovery and similarly for material reuse and recycling aiming to propose technical options for better energy efficiency and resource use whether on the process scale or on a larger inter-sites level. However reacting conversion systems create new valorization opportunities for the energy or material streams, adjudicated as non-usable by conventional process integration techniques, through converting them into new recoverable products and thus reintroducing them back into the production cycle. In this perspective, two novel conceptual frameworks, for incorporating reacting thermodynamic conversion systems to the material and energy integration problems in both cooperative and non-cooperative schemes, were proposed in this doctoral dissertation. The application of the proposed methodological frameworks on a realistic industrial park demonstrated how to implement conversion processes in a territory that reinsert streams judged to be non-recoverable by conventional on-site and inter-site energy and material integration techniques ensuing substantial operating costs savings and enhancing the park's circular economy. The non-usable stream in the investigated park is woody biomass for which three conversion routes were challenged being the wood to hydrogen, methane production and cogeneration
Valentin, Claire. "Contribution à la modélisation et à la conduite des procédés mixtes (continus - discrets) : application à l'industrie papetière." Grenoble INPG, 1993. http://www.theses.fr/1993INPG0036.
Lardeur, Etienne Dominique. "Amélioration de la performance de l'ingénierie dans un contexte d'ingénierie système : cas du développement conjoint des produits automobiles et de leurs systèmes de fabrication." Châtenay-Malabry, Ecole centrale de Paris, 2003. http://www.theses.fr/2003ECAP0923.
Zolghadri, Ali. "Etude d'outils et de méthodes génériques pour la supervision par système à base de connaissance de procédés industriels : application à une table de découpe." Bordeaux 1, 1992. http://www.theses.fr/1992BOR10629.
Delamare-Calot, Agnès. "Approches méthodologique d'amélioration des performances des systèmes de production de la seconde transformation du bois." Nancy 1, 1993. http://www.theses.fr/1993NAN10120.
The industrial markets evolve to the personnalization of the production and the need of reducing the production costs. The aim of firms is to satisfy the custom demands in time and at competitive prices. Our work consisted in setting a methodology of production systems' analysis aiming to improve their performances. In this context, we have proposed to use the combination of technics as process simulation, method of experimental designs and data analysis methods. We have deepened process simulation in the steps which have been less studied : data analysis and results exploitation. This methodology has been, next, implemented to help the furniture and joinery firms on designing their workshop
Geiskopf, François. "Formalisation et exploitation des contraintes Produit/Process pour la conception de systèmes de production : Application à l'Usinage Grande Vitesse." Université Louis Pasteur (Strasbourg) (1971-2008), 2004. https://publication-theses.unistra.fr/public/theses_doctorat/2004/GEISKOPF_Francois_2004.pdf.
Salame, Sahar. "Méthodologie de conception de l'architecture d'intégration énergétique des procédés variables incluant des stockages thermiques et des systèmes de conversion d'énergie." Thesis, Paris, ENMP, 2015. http://www.theses.fr/2015ENMP0087/document.
Many heat integration methods were developed to achieve high-energy efficiency in industry. Most of them are dedicated to continuous processes. However, statistics show that 50 % of processes are variable or batch. Hence: how to energetically integrate variable or batch processes including heat storages and energy conversion systems while minimizing the consumed exergy in the process? How to design utilities while considering the constraints on the energy network like the fluctuation of energy prices (imposed to reduce the energy consumption on peak hours) and the energy availability (resulting from the use of renewable energies)?The first part of the thesis presents the model to design the optimal architecture of heat integration in discontinuous processes including heat storages and energy conversion systems (heat pumps, tri-thermal machines, ORC etc.). This model allows the design of heat storages. The capacity and temperatures of energy conversion systems are also determined using this model. The objective is to reduce the consumed exergy in the process.The second part present the model for utilities design taking into account the real behavior of those under part load conditions or under constraints imposed by the network. It is an economic optimization
Laforest, Valérie. "Technologies propres : Méthodes de minimisation des rejets et de choix des procédés de valorisation des effluents. Application aux ateliers de traitement de surface." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 1999. http://tel.archives-ouvertes.fr/tel-00526578.
Chalal, Malik-Eddine. "Aide à la décision pour la servicisation des PME industrielles : une approche par modélisation et simulation." Thesis, Saint-Etienne, EMSE, 2014. http://www.theses.fr/2014EMSE0754/document.
The ever-continuing evolution of business practices leads the decision-makers to develop strategies based on Innovative approaches. One of them is the transition to a product-services system, called servitization. The main goal of this thesis is to provide a decision support in order to anticipate the performance of a company when different transition management scenarios are implemented. The first step toward this objective is the formalization of a conceptual model of product-service systems. They consist of two subsystems: (i) user-oriented subsystem and (ii) production-oriented subsystem. These subsystems are connected and interdependent. The model developped in the second step of the thesis takes into account this coupling, whose influence on the overall performance of the company is assessed thanks to a discret-event simulation approach. Finally a case study is performed for a french SME (ENVIE) whose line of business is the re-manufacturing of electrical equipment. The analysis results highlight the main areas of improvement for the company, allowing a better transition to a product-service system
Crattelet, Jonathan. "Conception et réalisation d'un microsystème pour la mesure d'encrassement organique, minéral et biologique dans les procédés - : intégration des régimes thermiques périodiques." Thesis, Toulouse, INSA, 2010. http://www.theses.fr/2010ISAT0028.
In industrial processes including agro and bioprocess, fouling is considered to be a complex and misunderstood phenomenon. Unit operations (including heat, mass and momentum transfers) are carried out in continuous, batch or fed-batch processes. During these operations, the products may evolve (chemical and biochemical reactions, microorganisms growth and activity, etc.) and fouling may occur with a wide range of kinetics from minutes up to years and dimensions from micrometers up to centimeters. Research issued from INRA led to develop a fouling sensor based on local differential thermal analysis and to patent this system. The device enables on-line and continuous monitoring of fouling propensity. Neosens company acquired an exclusive licence and develop and commercialize the sensor whose operating limits are known. In this work, our scientific and technological objectives are to break new locks through: (i) the realization of a fouling sensor based on microsystems technologies, (ii) the investigation and validation of an alternative thermal working mode and a method for fouling monitoring. Based on the previous work, our research deals with conception, realisation and integration of components based on microsystems technologies, integration of permanent and periodic thermal regimes with on-line data treatment and experimental validation at laboratory, pilot-plant and industrial scales for new geometries and configurations.This work led to metrology improvement and reliability. The resulting microsensor seems to be a complement of previous sensor regarding detection and quantification limits
Hoarau, Marie. "Présence d'un schème trompeur dans un atelier d'aéronautique : manifestations et remédiation : assistance aux procédés de fabrication dans les ateliers du futur." Thesis, Rennes 2, 2016. http://www.theses.fr/2016REN20017.
The evolution of technology and the shift in the role devoted to operators in industry, from simple task execution to complex system control, provoke a development of the literature concerning assistance to fabrication process. This thesis of psychology joins this literature. It aims at designing an assistant to fabrication process, called the virtual companion, which would both support performances and maintain or improve competences. In particular, the virtual companion would be addressed to operators in an aeronautical factory. The case study requires in line simulation of dynamic physical processes. Two fields of the literature were used: frameworks concerning interface design for dynamic situations and those concerning competences. A three-parts methodology was used: (1) activity analysis of the operators in the real factory, (2) conception and validation of a microworld, and (3) design and test of a virtual companion in the microworld. Results show that the operators of the factory use a misleading scheme during their activity. This misleading scheme is also used by random participants. Moreover, this misleading scheme has an effect on the performances of random participants trained in the microworld. Finally, the virtual companion, whose interface is design based on EID principles, does not eliminate the misleading scheme. However, the participants who did not use the misleading scheme performed better after using the virtual companion. This results leads to the conclusion that studying the operators’ use of misleading schemes seems accurate as such schemes may impair the use of interfaces designed to support their activity
Peña-Torres, Daniel. "Vers une gestion durable des ressources : une approche d'ingénierie des systèmes de processus pour les interfaces eau-énergie-alimentation." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP043.
Water, energy, and food are critical resources required to meet basic human needs, ensure economic development, and achieve sustainable development goals. Global demand for these resources is steadily rising due to population growth and climate change. Compared to their 2012 values, reliance on water, energy, and food is projected to increase respectively by 40, 50, and 35 percent by the year 2050. In addition, it is expected that the atmosphere will continue to warm up during the twenty-first century, putting even more pressure on energy use, water availability, and food production. These pressures can result in conflicts, for example, over disputed land and resources. To ensure safe access to water, energy, and food for human development, it is important for planners and policy makers to incorporate various vulnerabilities when designing strategies to reduce climate risks. Moreover, water, energy, and food are highly interrelated, presenting both synergisms and trade-offs along their supply chains. The connection of these three resources and the study of their interdependencies has been referred to in the literature as the Water Energy Food Nexus (WEFN). This dissertation explores the Water Energy Food Nexus, examining the intricate interdependencies and potential conflicts along their supply chain.Within the challenges present in WEFN systems, effective decision-making tools are indispensable. Process Systems Engineering (PSE) tools offer promising avenues for managing WEFN systems. This thesis conducts a thorough literature review, identifying gaps in existing optimization models for WEFN management. Subsequently, a generic multi-objective optimization model is formulated and applied to a real-case study at a regional scale, with sensitivity analyses revealing diverse scenarios. Recognizing the roles of various agents and actors within WEFN systems, a multi-agent analysis, coupled with a multi-criteria decision analysis is executed. The tools and methodologies developed in this study not only contribute to the PSE community, but also provide benchmarks for a comparative analysis of WEFN systems. This research emphasizes the vital role of PSE in addressing complexities of WEFN systems, offering insights for planners and policymakers dealing with the critical interdependencies of water, energy, and food resources
Lecuire, Vincent. "Gestion des systèmes et réseaux industriels." Nancy 1, 1994. http://www.theses.fr/1994NAN10051.
Feng, Lian-Fang. "Modélisation de réacteurs et procédés de polymérisation de propylène industriels." Thesis, Vandoeuvre-les-Nancy, INPL, 2006. http://www.theses.fr/2006INPL058N/document.
In this thesis, rigorous steady and dynamic models have been developed for an industrial propylene polymerization process. They have then been used to develop new processes based on the existing one. For that purpose, this thesis has: ? reviewed the state of the art of the olefin Ziegler-Natta catalysts; ? analyzed classical propylene polymerization processes and their characteristics; ? analyzed the characteristics of industrial slurry and gas phase propylene polymerization reactors using representative slurry propylene polymerization and gas phase polymerization reactors in series; studied the models for calculating the thermodynamic properties of complex propylene polymerization systems and methods for determining their parameters; ? developed a dynamic model for an entire industrial propylene polymerization process composed of a slurry reactor and several gas phase reactors in series. This model is based on rigorous polymerization kinetics involving several Ziegler-Natta active sites ? investigated the operating conditions and dynamic characteristics of the reactors ? simulated grade transition processes and optimum polymerization processes. Some of the results are original, and scientifically and technologically relevant
Bou, Malham Christelle. "Méthodologie d’optimisation hybride (Exergie/Pinch) et application aux procédés industriels." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEM082.
In the perspective of the prevailing and alarming energy scene, this doctoral work puts forward a methodology that couples pinch and exergy analysis in a way to surpass their individual limitations in the aim of generating optimal operating conditions and topology for industrial processes. A global methodology, a hybrid of the two thermodynamic methods in an intertwined approach with heuristic rules and numerical optimization, is therefore evoked. Using new optimizing exergy-based criteria, exergy analysis is used not only to assess the exergy losses but also to guide the potential improvements in industrial processes structure and operating conditions. And while pinch analysis considers only heat integration to satisfy existent needs, the proposed methodology allows including other forms of recoverable exergy and explores new synergy pathways through conversion systems. After exhibiting the guidelines of the proposed methodology, the entire approach is demonstrated on two industrial systems, a vacuum gasoil hydrotreating process and a natural gas liquefaction process. The application of the methodological framework on realistic processes demonstrated how to adjust each process operating conditions and how to implement conversion systems ensuing substantial energy savings
De, Cuypere Peter. "Vers une conduite intégrée des procédés industriels : application à un système de centrifugation." Nancy 1, 2000. http://www.theses.fr/2000NAN10020.
In the design of control systems for complex industrial processes there are needs that cannot be successfully addressed by the existing conventional control laws. In certain situations, the control system must exhibit a degree of autonomy in order to ensure continuity in the task for which it has been designed. In this work, a new approach for the functional architecture of a control system is proposed. The goal of this architecture is to increase the industrial processes autonomy by integrating in the control system the four following functional modules : control functions, knowledge base, inference mechanisms and man-machine interface and communications. Chapter 2 is dedicates to the study of the centrifugation process. The global behaviour is described by an oriented-signed graph taking into account the influence of the different phenomena. Chapter 3 deals with the problem of data-based learning systems. Different learning approaches, such as classification, pattern recognition and regression are presented and applied to the system. The last part of the chapter is devoted to the Takagi-Sugeno type fuzzy models. In chapter 4, the problems of monitoring, fault diagnosis and accomodation are treated. The dualty between parity space approach and principal component analysis (PCA) for fault detection and isolation is shown. In the last part of the chapter, the principles of fault accomodation are exposed and a specific method based on the computation of the faulty system parameters is applied. Finally, the procedure which leads to the integration of the functions to the control system is presented
Silveira, Marcos da. "Sur la distribution avec redondance partielle de modèles à événements discrets pour la supervision de procédés industriels." Toulouse 3, 2003. http://www.theses.fr/2003TOU30225.
Gourmelon, Stéphane. "Méthodologie d'analyse et de rétro-conception pour l'amélioration énergétique des procédés industriels." Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/14492/1/Gourmelon.pdf.
Enjolras, Manon. "Méthodologie d’analyse de la capacité à innover et à exporter des PME manufacturières et de procédés : identification et caractérisation d'un espace commun en vue de l'élaboration d'un outil multicritères d'aide à la décision." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0149/document.
This research work aims to suggest a methodology for analyzing the innovation and export capabilities of SMEs working in the manufacturing and process sectors. This methodology is based on the identification and the characterization of a conceptual innovation/export common space representing the activities, the resources, the skills that a SME has to mobilize first and foremost in order to improve in a simultaneous way its performances concerning innovation and export. Working on the activities included in the common space allows the reduction of the effort associated with this performance improvement. This work contributes to the scientific research through various aspects. First of all, the innovation / export relationship in SMEs, traditionally thought in a causal way, was envisaged through the prism of the complexity paradigm. This theoretical contribution allowed the identification of an innovation/export common space. Then, this common space was characterized through the identification of joint activities. The identification of these joint activities is both a theoretical and managerial contribution because by improving one of these activities, companies activate a single lever which echoes simultaneously on innovation and export capabilities. In the context of SMEs, for whom the lack of resources is a major difficulty, it makes perfect sense. Finally, an evaluation methodology of the innovation and export capabilities based on this common space was designed so as to propose a multicriteria decision-making tool dedicated to SMEs. This tool was finally tested within manufacturing and process SMEs of the Lorraine region
Cocquempot, Vincent. "Surveillance des processus industriels complexes : génération et optimisation des relations de redondance analytiques." Lille 1, 1993. http://www.theses.fr/1993LIL10053.
Riahi, Rachid. "Contribution à l'accélération des moteurs d'inférence pour la conduite des processus industriels." Paris 11, 1987. http://www.theses.fr/1987PA112478.
Chedeville, Olivier. "Couplage de procédés d'ozonation et d'un éjecteur tubulaire pour le traitement d'effluents aqueux industriels." Paris 6, 2006. http://www.theses.fr/2006PA066104.
Sancho, Félix. "Evaluation de la qualité et sécurité des aliments issus des procédés industriels innovants." Bordeaux 1, 1999. http://www.theses.fr/1999BOR10598.
Paludetto, Mario. "Sur la commande de procédés industriels : une méthodologie basée objets et réseaux de pétri." Toulouse 3, 1991. http://www.theses.fr/1991TOU30219.
Malhéné, Nicolas. "Gestion du processus d'évolution des systèmes industriels : conduite et méthode." Bordeaux 1, 2000. http://www.theses.fr/2000BOR10532.
This research deals with the problematic of managing the evolution of industrial systems. First, we define the concept of underlying change in any evolution process and we identify two kinds of Change management having a priori opposite philosophies: Re-engineering and Continuous evolution. This study leads us to conclude that they are, in fact, complementary and thus we shall identify those methods specific to industrial systems analysis and design favouring such a combination. The theoretical concepts relevant to automatic and systemic which complete this study, lead us to propose, in a second part, a model for the management of the evolution of industrial systems. This model is decomposed into three levels: • the “Strategic definition” deals with the performance of the system, • the “Actions definition” focuses on the existing and the future models of the system, • the “Project management” corresponds to an operational level and modifies the system by implementing the changes defined in the two previous levels. Then, this thesis presents a method, based on the proposed model, whose an application is described as a supplement to the research done
Queinnec, Isabelle. "Automatisation d'un procédé de fermentation semi-continu : optimisation et commande." Toulouse 3, 1990. http://www.theses.fr/1990TOU30086.
Baïna, Karim. "Un modèle orienté services procédés pour l'interconnexion et la coopération des procédés d'entreprises." Nancy 1, 2003. http://www.theses.fr/2003NAN10038.
As far as business process automation development is becoming increasingly important, supporting process interconnection and cooperation are inevitable. We resolve the problem of enterprise process interconnection and cooperation by supporting the management of a ''workflow of workflows'' in which several heterogeneous and monolithic systems coexist. Our model is based on process-service oriented approach that defines this later as a service which is a part of an enterprise process and which is achieved by an enterprise process. We formalise process service cooperation paradigm through defining, publishing, searching, negotiating and interconnecting of process services. Our model is achieved on DISCOBOLE, our platform of process service interconnection and co-operation
Cocquempot, Vincent. "Contribution à la surveillance des systèmes industriels complexes." Habilitation à diriger des recherches, Université des Sciences et Technologie de Lille - Lille I, 2004. http://tel.archives-ouvertes.fr/tel-00197595.
Toutes les méthodes de surveillance reposent sur la redondance d'information disponible sur le système. L'approche dite « à base de modèle » consiste à vérifier la cohérence des mesures effectuées en-ligne sur l'installation avec un modèle comportemental de celle-ci sous certaines hypothèses de fonctionnement. La première étape consiste à générer un ensemble de signaux indicateurs appelés communément « résidus ». Deux catégories de méthodes sont classiquement utilisées pour générer ces résidus : la méthode à base de Relations de Redondance Analytique et les méthodes à base d'observateurs. Ces méthodes, qui ont été récemment étendues au cas des modèles non-linéaires, présentent chacune des avantages et des inconvénients suivant le type de système (de modèle) considéré et les contraintes imposées pour l'implémentation des algorithmes. Ces travaux, initialement destinés à la surveillance des systèmes continus (ou discrétisés) ont été récemment adaptés et complétés pour traiter le problème de la surveillance des Systèmes Dynamiques Hybrides. Lorsque le système considéré est complexe, c'est à dire lorsque les éléments physiques ou composants qui le constituent sont nombreux, un pré-traitement structurel du modèle peut permettre de déterminer les conditions nécessaires de « surveillabilité » du système. L'analyse structurelle est un outil puissant qui ne nécessite pas la connaissance explicite des équations du modèle. Elle permet cependant de déterminer les sous-systèmes sur lesquels des algorithmes plus sophistiqués de surveillance peuvent être implantés.
La surveillance n'est qu'un module d'un processus complet permettant à une installation de fonctionner en respectant des critères de sécurité, de productivité et de qualité même en présence de défaillance. La commande du système peut être conçue de manière à utiliser les informations fournies par le module de surveillance. On parle alors de « commande tolérante aux défaillances »
Une réflexion sur les perspectives de recherche est exposée tout au long du manuscrit suivant le thème traité. Ces perspectives sont complétées à la fin du document par quelques orientations de recherche plus générales.
Perret, Jocelyne. "Intégration des réseaux de Petri différentiels à objets dans une plate-forme de simulation dynamique hybride : application aux procédés industriels." Toulouse, INPT, 2003. http://www.theses.fr/2003INPT020G.
Reddad, Zacaria. "Procédés d'élimination des ions métalliques par adsorption sur un polysaccharide naturel : étude expérimentale et modélisation." Nantes, 2002. http://www.theses.fr/2002NANT2053.
Zito, Gianluca. "Contribution à une méthodologie intégrée d'identification et commande des systèmes industriels." Phd thesis, Grenoble INPG, 2005. http://tel.archives-ouvertes.fr/tel-00168423.
intégrée pour l'identification et la commande des systèmes industriels. La première
partie analyse les problématiques de la commande des systèmes industriels et propose
une méthode qui conduit rapidement au calcul d'un régulateur robuste pour
un large nombre d'applications réelles en suivant les trois étapes fondamentales :
données E/S, identification du modèle, calcul du régulateur. La deuxième partie est
dédiée à l'étude des systèmes industriels linéaires monovariable. On présente une
procédure basée sur l'interaction entre la commande et l'identification en boucle
fermée. Une méthode pour l'ajustement des régulateurs PID destinés aux systèmes
d'ordre élevé est aussi proposée. La modélisation et identification d'une classe de
modèles non-linéaires constituent l'objet de la troisième partie de la thèse.
Puys, Maxime. "Sécurité des systèmes industriels : filtrage applicatif et recherche de scénarios d'attaques." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAM009/document.
Industrial systems, also called SCADA (for Supervisory Control And Data Acquisition),are targeted by cyberattacks since Stuxnet in 2010. Due to the criticality of theirinteraction with the real world, these systems can be really harmful for humans andenvironment. As industrial systems have historically been physically isolated from therest of the world, they focused on the protection against outages and human mistakes(also called safety). Cybersecurity differs from safety in the way that an adversary iswilling to harm the system and will learn from his mistakes. One of the difficulty interms of cybersecurity of industrial systems is to make coexist security properties withdomain specific constraints. We tackle this question with three main axes.First, we propose a filter dedicated to industrial communications, allowing to enforceapplicative properties. Then, we focus on formal verification of cryptographic protocolsapplied to industrial protocols such as MODBUS or OPC-UA. Using well-known toolsfrom the domain, we model the protocols in order to check if they provide securityproperties including confidentiality, authentication and integrity. Finally, we propose anapproach named ASPICS (for Applicative Attack Scenarios Production for IndustrialControl Systems) to study if safety properties (similar to those verified by our filter)can actually be jeopardized by attackers depending on their position and capacity. Weimplement this approach in the UPPAAL model-checker and study its results on aproof-of-concept example
Castillo, Rivera Luis Antonio (1970. "Etude d'effluents difficilement biodégradables : caractérisation et traitement par procédés d'oxydation avancée (POA)." Aix-Marseille 1, 1999. http://www.theses.fr/1999AIX11060.
Baleydier, Angèle. "Les systèmes productifs locaux italiens : districts industriels ou manufactures?" Lyon 3, 2001. http://www.theses.fr/2001LYO33010.
Estébanez, Virginie. "Typologie et activité des populations microbiennes nitrifiantes issues des procédés de traitement biologique des effluents agricoles et industriels." Rennes 1, 2011. http://www.theses.fr/2011REN1S008.
This work describes the characterization of the nitrifying microbial community of nineteen treatment plants treating municipal or industrial food processing wastewaters. Activated sludges were analyzed for their maximal activities of nitritation and nitratation by liquid respirometry. While the activated sludge from municipal and livestock WWTPs exhibit similar activities within each group, the other treatment plants have very different activities. The diversity and quantity of nitrite and nitrate oxidizing communities were studied by T-RFLP and real-time quantitative PCR. Between the sites studied, differences in community structure are shown. The nitrite oxidizing biomass is, for all activated sludges, composed of bacteria and archaea, but with different ratios from one plant to another. The majority of the sludges shows a community of nitrite oxidizing bacteria dominated by the genus Nitrosomonas. The few stations with a dominance of Nitrosospira have activities of nitrite and nitrate oxidation close to zero or very low. This correlation between the presence of Nitrosospira and a potential problem in nitrification activity should be verified on site to quickly detect problems in the treatment of nitrogen. This analysis also shows that half of the stations of this study present a community of nitrite-oxidizing bacteria composed of Nitrospira and Nitrobacter. Among all the quantified populations, only the number of nitrite oxidizing bacteria correlates with the activity of nitrification. These bacteria therefore represent the community responsible for nitrification