Dissertationen zum Thema „Gestion des procédés“
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Fall, Ibrahima. „Gestion optimisée de produits-modèles de procédés logiciels“. Paris 6, 2012. http://www.theses.fr/2012PA066018.
Der volle Inhalt der QuelleCurrently, software process artefacts are under-considered by the software process modelling and execution community. They are minimally managed. Moreover, the application of the principles of the model driven engineering on software processes have deeply changed the nature and increased the complexity of software artefacts : they become models (model-products hereafter). Taking into account such a complexity is a necessity with a view to optimize model-products management policies. This thesis has focused on the issue of the specification of the relationships between model-products by analysing the importance of the use of those relationships in model-products evolution management during process execution. We therefore have illustrated that using the respective specifications of relationships during process execution optimizes the management of model-products evolution in term of their consistency, their synchronization, and a flexibility in their granularity. Our solution fits in two major points that respectively relate to process modelling and enactment. According to process modelling, we have proposed a meta-model that captures the concepts to use to specify the model-products and the relationships between them. The meta-model takes also into account the details on these relationships as they are useful for an enhancement of used model-products management policies during the execution of the modelled processes. Our approach currently supports the nest and the overlap relationships. According to the process execution point of view, in order to structure the logical entities through which are managed the model-products of a process, we have proposed another meta-model. Such a meta-model therefore specifies process objects that represent model-products and their relationships during process execution. This meta-model also supports the nest and the overlap relationships, in compliance with the first one. The proposition also comprises transformation rules used to map concepts of the two meta-models and therefore to give the possibility of an automatic use of the modelling concepts through the enactment ones. The contributions of the approach are related to model-products management during process enactment. They essentially consist of a systematic synchronization and relational consistency between model-products, their aided creation, a flexibility in the granularity of their use, and their semantic integrity. We finally have prototyped a process modelling and enactment environment that implements our approach
Gagnon, Bertrand. „Gestion d'information sur les procédés thermiques par base de données“. Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65447.
Der volle Inhalt der QuelleKabbaj, Mohammed Issam. „Gestion des déviations dans la mise en œuvre des procédés logiciels“. Toulouse 2, 2009. http://www.theses.fr/2009TOU20035.
Der volle Inhalt der QuelleIn this thesis, we propose an original approach to process enactment evolution, based on formal management of process deviations. Deviations are defined as operations that violate process constraints. Once a deviation is detected, a deviation-tolerance model attached to the preset process is used to decide whether to accept or to reject the deviation. Detecting deviations consists to compare the enactable process model and the observed process of actual development through a monitoring system of user actions. The observed process is captured in observed process model. His behavioral and dynamic aspects are described in terms of the process elements life cycles. The observed model, is described in terms of current states of process elements, and history of operations performed by human actors. Both models are translated into first-order logic representation. Detecting and analysis of deviations are based on a formal approach exploiting this logical representation. The decision rests on a rules-based tolerance model that expresses decision to make with respect to contexts in which deviations occur. The method relevance lies in its ability to offer two managing deviations methods depending on the enactment context : acceptance of deviations after dynamic adaptation of process model for deviations that are considered as major ones, or mere tolerance, without changing process model for deviations considered as minor ones. Thus, treatment differs depending on the context of the desired evolution of process model. We have validated our approach with a case study that illustrates this approach. A prototype of a PSEE exploiting this approach has been developped
Bérard, Frédéric. „Stratégies de gestion de production dans un atelier flexible de chimie fine“. Toulouse, INPT, 2000. http://www.theses.fr/2000INPT002G.
Der volle Inhalt der QuelleDehoumon, Mathieu. „Les procédés de gestion par l'OIT de la discrimination au travail dans les Etats africains“. Thesis, Grenoble, 2011. http://www.theses.fr/2011GREND008.
Der volle Inhalt der QuelleIn the matter of labour, discrimination is a violation of Human Rights particularly the principles and fundamental rights guaranteed by the International Labour Organisation (ILO) through its Constitution (1919) and especially Convention No. 100 (1951) related to the equal remuneration between men and women for a work of an equal value, and Convention No. 111 (1958) on the elimination of discrimination in employment and occupation. The practice of discrimination in African countries seems to be related to the context of poverty and exclusion entertaining feelings of injustice or inequality between men and women, between workers in a same office, between potential workers and employers. Among the victims of this scourge, women are most at risk in any breach of national and international standards of protection of their rights ; there are also persons belonging to minorities, and marked by some special features including ethnicity, family origin or political affiliation. They face new forms of discrimination that are more subtle. This research then analyzes the ILO's management mechanisms on discrimination at work in some African countries when there is a litigation based on a worker's sex or race. Highlighting the relevance of the ILO's political and legal processes of management on discrimination at work, this study attests that socio-cultural factors, lack of political will and the deficiency of the legal culture greatly enhance the difficulties of application of the principle of non-discrimination at work in some African countries. It also assesses the effectiveness of both methods while emphasizing on their complementary nature. Therefore, this research is to contribute firstly, to look for solutions to social conflicts that arise from male/female inequalities and ethnic exclusion in the workplace, and secondly, to help understand the actors and social agents' behavior and the issues in the organization and administration of labour in African countries such as overlap of interests
Dames, Maysoun. „Gestion de procédés discontinus : méthodologie de modélisation et d'optimisation d'opérations de dispersion liquide-liquide en cuve agitée“. Phd thesis, Toulouse, INPT, 2005. https://hal.science/tel-04582971.
Der volle Inhalt der QuelleLiquid-liquid dispersions and emulsions are formed in a large number of industrial domains, as well as in a wide range of products. However, their development presents one of the most complex operations. Dispersions are highly dependant on the physicochemical properties of products used and the hydrodynamics in the apparatus, which makes the prediction of the dispersion characteristics, and in particular, the optimization of the process, extremely difficult. This thesis investigates two types of liquid-liquid dispersions. Each type is discussed via separate case studies both created in an agitated vessel. The first case investigates an extraction operation, while the second concerns emulsions manufacturing, where by the drop size must be controlled. According to the nature and the complexity of the phenomena considered, two different approaches have been developed. In the first case, an experimental approach has been employed in order to optimize the yield in the purification step of a multi-functional acrylates process. The results show that there are predominant influences of certain operating parameters. It argued therefore that there is a need to develop a new process which considers environmental and economic requirements. In the second case, the development of emulsions with particular properties was investigated. The case adopts a synthetic approach that is based upon coupling a neural network and a genetic algorithm. Neural network is used as a non-linear modelling tool to determine the functional relationships between the means drop diameter and different operating variables. The genetic algorithm is used as a means for prediction the operating conditions that enable a given criteria (d32) to be reached. The application of these tools in the physical domain studied was shown to be of great interest. It is anticipated that such tools will lead to the development of new ways to control complex processes
Collignon, Roland. „Gestion temps réel de la qualité d'une ligne d'embouteillage, apport de la méthode de maîtrise statistique des procédés“. Nancy 1, 1997. http://docnum.univ-lorraine.fr/public/SCD_T_1997_0012_COLLIGNON.pdf.
Der volle Inhalt der QuelleLardon, Laurent. „Représentation et gestion des incertitudes pour le diagnostic par la théorie de Dempster-Shafer : application aux procédés biologiques“. Montpellier, ENSA, 2004. http://www.theses.fr/2004ENSA0026.
Der volle Inhalt der QuelleBiological process are widely used for wastewater treatment, but their supervision is a complex task because of observation and modelling difficulties. As a consequence their diagnosis needs to take into account uncertainties coming from measurement or from ill known models. The work presented in this thesis is proposing to use the Transferable Belief Model (TBM) formalism in order to characterize all available information sources and their uncertainties and then to aggregate them to be able to propose a state or a group of states highly possible for the process. Firstly a method is proposed to combine information sources defined on different definition sets, here to combine diagnosis relations defined on the sensors of a process ; this method allows one to detect one or several sensors having probably broken down. Uncertainty representation is here precious to use diagnosis relations based on low-precision models like interval models. Moreover another method is proposed to decide the biological state of a process with the observation of a limlited number of variables. This method is based on the representation of a corpus of fuzzy rules by belief functions and their combination. The combination produces good classification and preserves the modularity of the system ; furthermore the classification quality is exhibited. These methods based on the TBM formalism as a diagnosis framework have been applied to diagnose the instrumentation and the physiological state of an anaerobic process. They have been applied within the IST europen project TELEMAC whose goals were to develop methods and tools dedicated to the remote supervision of wastewater treatment plants
Grigori, Daniela. „Éléments de flexibilité des systèmes de workflow pour la définition et l'exécution de procédés coopératifs“. Nancy 1, 2001. http://docnum.univ-lorraine.fr/public/SCD_T_2001_0241_GRIGORI.pdf.
Der volle Inhalt der QuelleIn order to improve the effectiveness of workflow systems for cooperative work we propose a model of cooperative workflow which allows a flexible process execution. The control flow flexibility is based on the concept of anticipation that allows an activity to start its execution even if its activation conditions are not yet satisfied. Anticipation increases parallelism between activities and improves their execution quality by supporting rapid feedback. The flexible data exchange between activities is allowed by encapsulating activities in cooperative transactions. This activity model surpasses the "black box" activity model, considered by traditional workflows, while maintaining the necessary level of control. The second contribution of this thesis consists in a technique and suited tools for exceptions analysis, prediction and prevention. These tools use data mining techniques that are applied to process execution data stocked in a data warehouse
Queinnec, Jacques. „La gestion du trésor royal à la fin du treizième siècle : Procédés et méthodes comptables : Les ressources du trésor“. Brest, 2005. http://www.theses.fr/2005BRES1001.
Der volle Inhalt der QuelleAt the end of 1295, Philip the Fair takes back from Temple the treasury management, but the new Louvre's royal treasury uses proceedings drifted from Temple. Operations in the diary from 1298 to 1300 are for half part cash operations, and for the other part transferring and other writing operations. The net receipts added to the king's account are, those two years, 2 194 002 parisis pounds, dividing in 1 491 609 pounds coming from coining profits, 357 147 pounds from décime tax and other Church contributions, 68 506 pounds from centième and cinquantième taxes paid by laics, and 204 012 pounds from southern seneschalcies revenues. The treasury receives also 302 793 pounds added on northern bailiffs accounts, without transferring them on king's account. The expedients that the king must use because of insufficiency of his ordinary revenue just procure him a temporary treasury comfort, before a new degradation of his financial situation
Chazara, Philippe. „Outils d'élaboration de stratégie de recyclage basée sur la gestion des connaissances : application au domaine du génie des procédés“. Thesis, Toulouse, INPT, 2015. http://www.theses.fr/2015INPT0141/document.
Der volle Inhalt der QuelleIn this work, a study is realised about the creation of a new methodology allowing the generation and the assessment of new waste recovery processes. Three elements are proposed for that. The first one is the creation of a modelling framework permitting a structured and homogeneous representation of each recovery process and the criteria used to asses them. The second one is a system and a tool generating new recovery processes from others known. Finally, the last element is another tool to model, to estimate and to asses the generated processes. The creation of a modelling framework tries to create some categories of elements allowing the structuring of unit operations under different levels of description. Three levels have been identified. In the higher level, the Generic operation which describes global structure of operations. The second one is Generic treatment which is an intermediate level between the two others. It proposes here too categories of operations but more detailed than the higher level. The last one is the Unit operation. A second framework has been created. It is more conceptual and it has two components : blocs and systems. These frameworks are used with a set of selected indicators. In a desire of integrating our work in a sustainable development approach, an indicator has been chosen for each of its components: economical, environmental and social. In our study, the social impact is limited to the number of created jobs. To estimate this indicator, we proposed a new method based on economical values of a company. The tool for the generation of new waste recovery processes used the methodology of case-based reasoning CBR which is based on the knowledge management. Some difficult points are treated here to adapt the CBR to our problem. The structuring of knowledge and generally the source case generation is realised by a system based on connections between data and the use of inference mechanisms. The development of a new method for the similarity measure is designed with the introduction of common definition concept which allows linking states, simply put description of objects, to other states under different levels of conceptualizations and abstractions. This point permits creating many levels of description. Finally, recovery process is decomposed from a main problem to some sub-problems. This decomposition is a part of the adaptation mechanism of the selected source case. The realisation of this system is under logic programming with Prolog. This last one permits the use of rules allowing inferences and the backtracking system allowing the exploration to the different possible solution. The modelling and assessment of recovery processes are done by a tool programmed in Python. It uses the meta-programming to dynamically create model of operations or systems. Constraint rules define the behaviour of these models allowing controlling the flux circulating in each one. In the evaluation step, a parser is used to convert theses rules into a homogeneous system of constraint programming. This system can be solved by the use of solvers with an interface developed for that and added to the tool. Therefore, it is possible for the user to add solvers but also to add plug-ins. This plug-ins can make the assessment of the activity allowing to have different kinds of evaluation for the same criteria. Three plug-ins are developed, one for each selected criterion. These two methods are tested to permit the evaluation of the proposed model and to check the behaviour of them and their limits . For these tests, a case-base on waste has been created Finally, for the modelling and assessment tool, a study case about the recovery process of used tyres in new raw material is done
Symchowicz, Nil. „La mutation des procédés contractuels des personnes publiques : le recours aux "montages contractuels complexes"“. Paris 1, 2002. http://www.theses.fr/2002PA010304.
Der volle Inhalt der QuelleHermosillo, Worley Jorge. „Vers une meilleure prise en compte des ressources humaines dans les processus d'entreprise : connaissances, rôles et compétences“. Toulouse, INPT, 2003. http://www.theses.fr/2003INPT040H.
Der volle Inhalt der QuelleBlanc, Pascal. „Pilotage par approche holonique d'un système de production de vitres de sécurité feuilletées“. Nantes, 2006. http://www.theses.fr/2006NANT2126.
Der volle Inhalt der QuelleIn an everyday more competitive environment, firms constantly need to adapt and optimise their industrial tools, to increase their competitiveness. In particular, the control of manufacturing systems is evaluated in terms of cost and time parameters, which contribute to assess the return, and so the competitiveness of a firm. The increasing needs for flexibility, agility and efficiency result in a growing complexity of manufacturing systems and a necessity of integration of their control. These requirements are illustrated by an industrial case which is proposed as an example for manufacturing system control design. Within this manufacturing control system, problems are identified as scheduling and/or optimisation problems, for which dynamic data are numerous and miscellaneous and are constantly updated. In this dissertation, we illustrate the use of a holonic structure to perform the control of such an industrial manufacturing system. Such a structure makes possible to consider a reality left out by many other approaches: the hierarchical and heterarchical nature of decision-making within manufacturing systems, as well as the physical reality of these systems. Thus, the use of a holonic structure allows for building a reactive and configurable control, while considering global aspects of the manufacturing system. The use of the PROSA architecture is based on a typology of the manufacturing system elements: products, resources, orders and specialised decision-making centres (hierarchical and/or functional). It allows us to identify and define the roles and behaviours of the manufacturing control elements. For this architecture, we propose the use of mechanisms to synchronize the execution of manufacturing orders. These mechanisms guarantee the availability of components and enable to impose limit time constraints on task scheduling. On the other hand, we propose a typology of Resource holons, based on characteristics of the tasks that they perform: supply, conversion, assembly or disassembly. For each type of Resource holon, specific heuristics are used to solve the tasks scheduling problem, taking into account the own model of each one. For instance, a specific heuristic generates a solution to the scheduling/packing problem in the case of a raw material cutting machine. These mechanisms and algorithms are implemented within a multi-agents system, which supports the development of the manufacturing control system. To evaluate this manufacturing control, the use of discrete-event simulation is proposed as an emulator of the physical system. This proposition makes possible to solve problems of redundancy during the development of manufacturing control, permits to reuse objects of the simulation model, and allows some savings in the development effort, since the manufacturing execution system evaluated is the same as the one used in the real context. Finally, this manufacturing execution system (MES) is integrated to the management system of the firm, as it interfaces the enterprise resource planning (ERP), and the physical system
BROISSIN, NICOLAS. „Contribution a l'amelioration de la reactivite des systemes de production automatises et flexibles grace a un pilotage base sur une generation de taches decentralisee“. Aix-Marseille 3, 1999. http://www.theses.fr/1999AIX30063.
Der volle Inhalt der QuelleBois, Stéphane. „Intégration de la gestion des modes de marche dans le pilotage d'un système automatisé de production“. Lille 1, 1991. http://www.theses.fr/1991LIL10113.
Der volle Inhalt der QuelleDans un second temps, nous avons montré que l'intégration des tables de contraintes aboutit à une décomposition structurelle et fonctionnelle: elle est obtenue sous la forme d'un schéma arborescent de recherche déductive des modes de marche des différentes machines du procédé. Ce modèle est facilement exploitable peut être utilisé par la suite, en vue du pilotage temps réel de l'unité de production par un raisonnement sur la logique de dépendance ou d'enchaînement de ses modes de marche. L'exploitation de la modélisation nous a amené à étudier le pilotage d'une unité de production flexible. Nous en avons décrit les différentes fonctionnalités et les solutions adoptées pour résoudre tous les problèmes de fonctionnement, qui se répercutent à tous les niveaux de commande. La mise en œuvre d'un logiciel de pilotage, chargé de la gestion automatique des modes de marche, a permis de valider complètement la démarche, avec l'utilisation de techniques d'intelligence artificielle
Crevits, Igor. „Répartition dynamique de taches dans les procédés complexes. Modélisation de la répartition anticipée : application au contrôle de trafic aérien“. Valenciennes, 1996. https://ged.uphf.fr/nuxeo/site/esupversions/8e4a1e03-64eb-4e69-9a03-f26c175ea950.
Der volle Inhalt der QuelleLetourneau, Jean-Jacques. „Approche globale pour la simulation et la conception de procédés : application à des unités de séparation interconnectées“. Toulouse, INPT, 1992. http://www.theses.fr/1992INPT045G.
Der volle Inhalt der QuelleDosière-Durand, Carine. „Approche globale pour la gestion et l'élimination des polluants organiques : application aux rejets aqueux issus des procédés de synthèses du 5007-TDS et du 12911“. Paris 11, 2008. http://www.theses.fr/2008PA112263.
Der volle Inhalt der QuelleGlobal approach was a multidisciplinary concept developed in the laboratory of applied microbiology, since a decade. The aim was to answer to an industrial problem. It was applied, under this Ph-D, to aqueous effluents released during the syntheses of two headlight drugs of Servier laboratories: Arcalion, drug antiastheny and Protelos, used against osteoporosis. The first step or the subject concerned analysis and characterization of organic pollutants present in studied effluents. The two family of pollutants contained either thiophenic skeleton, or aminopyrimidin moiety, exclusive of vitamin B1 and a disulfide bond. Some methods of degradation by chemical, microbiological and enzymatic ways were established for the study the purification of the effluent, and mechanisms implemented on target or pattern molecules belonging to the families of pollutants. AOPs, in particular Fenton and ZEA process have shown their efficiencies for the cleanup of the two effluents. The metabolism of each molecule was also studied in microorganisms and mammals. Finally, global approach contain an evaluation part, in which were tested different metabolites as methylglyoxal scavengers, entity responsible for diabetes complications
Bouzid, Sara. „Approche sémantique de gestion de ressources d’Information pour le contrôle de processus industriels : application au processus de fabrication chez STMicroelectronics“. Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4346/document.
Der volle Inhalt der QuelleIn order to ensure the manufacturing of conforming products with the least waste, the manufacturing process control has ever more become a major issue in industries nowadays. The complexity of the information systems in industries and the permanent evolution of the business needs make difficult the retrieval of the resources that provide manufacturing information related to the process control. In addition, the use of commercial software platforms in industries for the processing of data, does not facilitate the access to the information produced, because these platforms do not support the semantic management of information.This thesis argues the need to reduce the distance between the used resources in industries and the business needs of the experts that ensure the control of the manufacturing processes.The S3 approach is proposed to support the control of the manufacturing processes through an original resource management system. This system is intended for both resource description and retrieval. The S3 approach relies on two complementary retrieval strategies: a bottom-up strategy enabling the creation of semantic descriptors of resources, and a top-down strategy enabling the capture of business needs in search patterns. Two semantic structures are proposed to support the resource description and retrieval mechanisms: a manufacturing process ontology and a process control dictionary. Basing on these semantic structures, each retrieval strategy provides different levels of description to the resources, and enables the alignment of different types of business knowledge. The experimentation of the approach within STMicroelectronics showed promising results
Latrous, Mohamed Othman. „Modèle d’intégration maintenance conditionnelle, prévisionnelle et maitrise statistique des procédés“. Electronic Thesis or Diss., Compiègne, 2021. http://www.theses.fr/2021COMP2639.
Der volle Inhalt der QuelleIntegrated solutions are evolving to cope with the digitalization of manufacturing processes. One area of improvement is developing new strategies joining maintenance and quality control. A popular hypothesis used in these integrated models is considering that quality control comes down to monitoring a single process or product characteristic. However, for complex systems, this assumption is seldom satisfied as the number of characteristics grows and they can have potential correlations. In fact, a multivariate control chart is more suitable to guarantee better performances of drift detection. Following this perspective, the main objective of this thesis consists in developing new maintenance decision rules based on produced items’ quality data. Multivariate control charts are used to provide detection and identification of potential process shifts and adaptive maintenance actions are triggered, targeting system components responsible for the deterioration of the produced items’ quality. First, a preliminary study is led to highlight the impact of multivariate control charts on the decision making process. Next, integrated maintenance decision rules for condition based and predictive maintenance are proposed using multimodal control charts. The developed decision rules are applied in the context of a simulated manufacturing process exhibiting a quality defect appearing in different dynamics (fast and slow drifts). The new strategies proposed in this thesis have been validated through the development of analytical models expressing the profit of the manufacturing system. This profit was maximized based on decision variables (sampling period and critical intervention threshold) and the existence of optimal solutions has been demonstrated through simulation. The robustness of the developed models has been proven by sensitivity studies, followed by comparative studies in order to highlight the impact of the proposed strategies
Duvivier, David. „Etude de l'hybridation des méta-heuristiques, application à un problème d'ordonnancement de type jobshop“. Littoral, 2000. http://www.theses.fr/2000DUNK0046.
Der volle Inhalt der QuelleIn this thesis, iterative search methods are studied and applied to the jobshop scheduling problem. Instead of trying to reach high performance, we focus our work towards a better understanding of search algorithms and their hybridization. In particular, we study the impact of hybridization on the quality of final solutions. First part of our work consists in evaluating the impact of combining several criteria in the objective function. We have used several local search algorithms in order to gather statistical informations about the resulting structures of fitness landscape. We have also studied the impact on performance. Then, the study of the interactions between operators in our GA leads us to define some improvements of the scheme of application of genetic-operators. Finally, we study several schemes of hybridization based on tabu-search and evolutionary algorithms
Labruyère, Alexis. „Analyse et optimisation des procédés de conception des systèmes de transmission Nx160 Gb/s par fibre à haute densité de gestion de la dispersion“. Dijon, 2004. http://www.theses.fr/2004DIJOS044.
Der volle Inhalt der QuellePech-Gourg, Nicolas. „Méthodes d'optimisation appliquées à l'industrie du liège“. Angers, 2002. http://www.theses.fr/2002ANGE0044.
Der volle Inhalt der QuelleBelmahdi, Noureddine. „Contribution à l'organisation du système de production pour la modélisation et son évaluation par la simulation“. Metz, 1995. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1995/Belmahdi.Nour_Eddine.SMZ9531.pdf.
Der volle Inhalt der QuelleBambou, Mike. „Création d'un modèle de market-timing à partir de deux modèles industriels : simulation d'une gestion de portefeuille de contrats de matières premières“. Thesis, Orléans, 2015. http://www.theses.fr/2015ORLE0508.
Der volle Inhalt der QuelleMethods of Statistical Process Control (SPC) are used in the industrial sector to know if work pieces are conforms to specifications. Two methods are used: the Shewhart method and the Exponentially-weighted moving average method (EWMA). An adaptation of these methods to the financial markets is done to create a model which anticipates prices on commodities markets. Both methods are used simultaneously which is the first time. The developed model distinguishes several types of market movements and various types of investors. It is a safe model. Obtaining strong performances is important but reducing risk and limiting losses are too. A simulation of the management of a portfolio which may be invested of twelve commodities is done. The markets are: natural gas, oil, wheat, corn, soybeans, lumber, frozen concentrated orange juice, coffee, cocoa, sugar, cotton and copper. We decide to simulate a portfolio without “leverage” and results are impressive. The simulation is done from January 3rd 2000 to December 31th 2013. The initial capital of the portfolio is $ 10,000,000 and at the end of the simulation is $ 189,868,766. The rate of annual return is 23%. The only negative annual return is that of 2013 (-0.5%) and the best is that of 2010 (67%). The annualized volatility is 17%. The information ratio is exceptional: 0.85! The ability to market timing is 47%. This percentage is ordinary, but the average performance of winning positions is 17% while that of a losing position is -6%. The performance of a winning position, on average, corrects that of three losing positions
Wang, Bai Qing. „Contribution à la capitalisation des connaissances en génie mécanique : application au grenaillage de précontrainte“. Troyes, 2007. http://www.theses.fr/2007TROY0009.
Der volle Inhalt der QuelleThe work presented in this thesis is at the same time a contribution to the field of the mechanical engineering especially to the shot peening process and to the field of the knowledge management. This work consists in analyzing methods developed in knowledge engineering (MKSM, CommonKADS, KOD, REX, MEREX…) and some modeling “languages” (UML, IDEFO, GRACET…). An implementation of the above-mentioned methods of modeling languages for the capitalization of knowledge in the field of shot peening process is proposed. This application shows that it is possible to capitalize knowledge of the mechanical engineering with generic methods based on some improvements of the models used for the various points of view of knowledge. The knowledge book presented through the appendices illustrates the knowledge capitalized in the various selected points of view
Montoya, Torres Jairo Rafael. „Transport automatisé dans les systèmes de fabrication de semi-conducteurs : nouvelles approches de gestion tactique et opérationnelle“. Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2005. http://tel.archives-ouvertes.fr/tel-00793340.
Der volle Inhalt der QuelleLaforest, 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.
Der volle Inhalt der QuelleCurrently, 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
Le, Mercier Franck. „Organisation et gestion pharmaceutique des médicaments en expérimentation clinique dans un centre hospitalier universitaire parisien, Groupe hospitalier Lariboisière-Fernand Widal-Saint Lazare“. Paris 5, 1992. http://www.theses.fr/1992PA05P073.
Der volle Inhalt der QuelleLaforest, 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.
Der volle Inhalt der QuelleNdiaye, Moulaye Aidara. „Aide à la décision pour la conception et la gestion de systèmes de transport automatisés complexes“. Thesis, Lyon, 2018. https://tel.archives-ouvertes.fr/tel-02877296.
Der volle Inhalt der QuelleThe manufacturing of semiconductors is a long and very complex process with many constraints. The process of manufacturing a lot can last several months with several hundred operations. Several thousand lots must be transported and stored permanently. An efficient transportation system is therefore critical to ensure that the hundreds of machines in the factory are delivered on time.This thesis focuses on the modeling and optimization of a transport and automated storage (AMHS) system in a modern semiconductor manufacturing unit.Different issues have been studied. The first aimed to analyze the impact of key parameters of the AMHS system and to propose new approaches to determine these key parameters. A simulation model has allowed to validate the results obtained. The second issue focused on the management of crisis situations related to one or more failures on the network, with the aim of minimizing disruption to the operation of the AMHS system. The last issue concerns the design of a new AMHS system for the transportation of auxiliary resources in a specific workshop.These thesis work was carried out within the framework of a CIFRE agreement between the Ecole des Mines de Saint-Etienne and the Crolles site of STMicroelectronics. The proposed scientific approaches have led to several industrial applications in use
Karoui, Fathia. „Optimisation de stratégies de gestion des batteries au plomb utilisées dans les systèmes photovoltaïques“. Phd thesis, Grenoble INPG, 2007. http://tel.archives-ouvertes.fr/tel-00723068.
Der volle Inhalt der QuelleKaroui, Fathia. „Optimisation des stratégies de gestion des batteries au plomb utilisées dans les systèmes photovoltaïques“. Phd thesis, Grenoble INPG, 2007. http://www.theses.fr/2007INPG0122.
Der volle Inhalt der QuelleBatteries used in photovoltaic systems are subjected to penalizing operating conditions due to the intermittency of the solar resource. Their effects may be reduced by the optimisation of energy management strategies. This study deals with the pulse charge of lead acid batteries, the most used ones for this application. The effects of this charge mode are shown both on experimental cells and commercial batteries. The influence of the parameters, frequency, dut Y cycle and charge factor, on the voltage profiles is precisely studied. Ln a second approach, a simplified model of the lead-acid battery is developed and experimentally validated after the analysis of its sensitivity to the adjustable parameters. It shows that transport phenomena in the electrolyte may be well described by a global characteristic time depending only on the state of charge. It accounts for the voltage response of the battery after adding the terms describing the non ideal behavior of the interfacial voltages
Heni, Amira. „Étude des procédés discursifs de légitimation mobilisés par l'état et une entreprise privée dans un contexte de gestion de crise - à partir du cas Deepwater Horizon au large de la Louisiane - approche sociopolitique“. Thesis, Université Laval, 2014. http://www.theses.ulaval.ca/2014/30755/30755.pdf.
Der volle Inhalt der QuelleOur study is intended to be an exploratory analysis based on a case study. Starting from a sample debate articulated around a public issue, namely the corporate social responsibility (CSR), we apprehend the discourse as an instrument of power deployed by actors in a conflict position. We take the ecological crisis caused by British Petroleum (BP) in the Gulf of Mexico since April 20, 2010 as a case study, and the reaction of the U.S. administration to intervene and reassure the public opinion alarmed by this crisis. In order to select our corpus, we have identified two target populations of discourse, in this case the speech given by the U.S. government (Obama's speech) and discourses representing the official opinion of BP (BP's press releases) dated April 20, 2010 until September 19, 2010. We considered any discourse occurring in a context of conflict symbolically as a power signs carrier and a mobilizing instrument of power relations between the involved actors. We start from the hypothesis stating that organizational and governmental discourses, studied and produced in a crisis context, are necessarily conflictual discourses within the meaning of Windisch (1987). And we used the analytical framework developed by Windisch (1987) to highlight the internal functioning of a confrontational speech seen as a vector of power and legitimacy. In our research, we preceded the discourse analysis, the main method in our study, by a qualitative content analysis. The use of content analysis aims to determine the various themes developed in the discourse, examine how actors define the CSR topic and put the corpus in its own reality, by using the HYPERRESEARCH qualitative content analysis software. In addition, by implementing the theoretical assumptions and methodological tools from discourse analysis, we auscultated the performative legitimating potential of discourses constructed and developed in a conflict communication context. We used the TROPES text analysis software recognized as a textual analysis tool able to generate representative models of the corpus structure and its thematic organization. KEY CONCEPTS Confrontational discourse, discursive strategies, CSR, legitimacy, power, tandem of government and enterprise.
Jimenez, lorenzo Rafael. „Comprendre la production des composés volatils soufrés par Saccharomyces cerevisiae pendant la fermentation oenologique“. Electronic Thesis or Diss., Montpellier, SupAgro, 2021. http://www.theses.fr/2021NSAM0057.
Der volle Inhalt der QuelleTemperature and nutrient availability (nitrogen, lipids, oxygen…) have been reported as key environmental parameters modulating the metabolic activity of yeasts during wine fermentation. In particular, the impact of these factors on the production of ‘positive' fermentative aromas is increasingly taken into account by winemakers to manage and control the fermentation process. By contrast, in S. cerevisiae, the metabolism of sulphur compounds and its regulation by environmental parameters remain poorly explored, although these molecules negatively contribute to the sensory properties of wines.This project will first aim to identify the network involved the sulphur metabolism in yeast and to assess the relative contribution of these different pathways to the formation of volatile sulphur compounds. The second key point will be to investigate the incidence of environmental factors relevant for the winemaking process, as temperature, availability of nitrogen and sulphur sources, nutrients additions… on the distribution of fluxes through the sulphur metabolic network and on the production of S-molecules. This generated knowledge will allow, at the end of the project, to design and validate strategies of fermentation management to reduce the synthesis of these off-flavours during wine fermentation.This project will rely on dedicated tools to investigate the activity of yeasts during alcoholic fermentation - on-line monitoring of the production of CO2 and volatile molecules, robot-assisted system for high throughput fermentations, …- combined with cutting-edge methodologies for the analytical determination of sulphur and volatile molecules and the quantitative analysis of fluxes distribution through metabolic networks. These approaches will be first implemented to provide a detailed understanding of regulation of the formation of sulphur compounds by environmental parameters during fermentation in a chemically defined “wine”-medium. Then, from this knowledge, we will define strategies aiming at controlling the production of sulphur compounds by yeasts. Finally, these control strategies will be assessed and validated at a pilot-scale, using natural grape juice
Wahl, François. „Un environnement d'aide aux ingénieurs basé sur une architecture en tâches et sur un module de visualisation de courbes. Application à la conception de procédés de raffinage“. Phd thesis, Ecole Nationale des Ponts et Chaussées, 1994. http://tel.archives-ouvertes.fr/tel-00529958.
Der volle Inhalt der QuelleAimé, Noël. „Aide à la conduite sûre des réacteurs chimiques discontinus en marche normale ou incidentielle vis-à-vis du danger d'emballement thermique“. Compiègne, 1991. http://www.theses.fr/1991COMPD422.
Der volle Inhalt der QuelleVazquez, Hector Javier. „Contribution des systèmes experts à la conduite et à l'optimisation d'un procédé de fermentation alcoolique“. Compiègne, 1993. http://www.theses.fr/1993COMPD642.
Der volle Inhalt der QuelleGravel, Marc. „Évaluation de la méthode Kanban dans un contexte de production par lots : expérimentation dans une PME québécoise“. Aix-Marseille 3, 1987. http://www.theses.fr/1987AIX32025.
Der volle Inhalt der QuelleIn the last few years, japan manufacturing industry, using new methods and technics of production elaboration, is in advance. In principle, these are intended and applied in environment of line assembly production with repetitives operations and large-scale manufacturing. As more than 90% of canadian manufacturing companies are pme, and their production environment is generally job-shop type with lots production, we have elaborated an evaluating model by simulation, allowing to prove to an entreprise with these caracterestics, the advantage of kanban method in its production environment. This model has been experimented in a quebec pme of clothing industry, and the results prove that such method is applicable and give satisfactory results for this type of production environment. For exemple, kanban reduces in-process inventory about 60% and the makespan time about 12. 5%. Kanban method implant has been subsequently realised in this entreprise and the results obtaines by simulation were confirmed. In adaptation of kanban method for this type of production environment is also proposed
Lestideau, Vincent. „Modèles et environnement pour configurer et déployer des systèmes logiciels“. Phd thesis, Chambéry, 2003. http://tel.archives-ouvertes.fr/tel-00005525.
Der volle Inhalt der QuelleCette thèse propose un environnement de déploiement nommé ORYA, c'est à dire une plate-forme offrant un support automatisé aux activités du cycle de vie du déploiement. ORYA est basé sur la réutilisation et l'intégration des outils de déploiement existants. Pour cela, nous proposons une abstraction des différents acteurs et entités du déploiement, ainsi qu'une infrastructure permettant de faire interopérer des outils hétérogènes et ne se connaissant pas. Ce travail traite plus particulièrement de l'activité de sélection avec l'utilisation d'un modèle de composant générique et la mise en place d'un framework basé sur un système d'annotations et de règles. La deuxième activité étudiée en détail est celle de l'installation qui est basée sur un langage de procédés permettant la description et la réalisation des procédés dans le monde réel.
Une implémentation d'ORYA a été réalisée afin de valider notre approche dans le cadre d'une expérimentation industrielle en vraie grandeur..
Bouaziz, Mohammed Farouk. „Contribution à la modélisation Bayésienne de l'état de santé d'un système complexe : application à l'industrie du semi-conducteur“. Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00993732.
Der volle Inhalt der QuelleTramoni, Félicien. „Analyse du traitement et de la gestion durable des boues d’épuration en Corse. Proposition de solutions énergétiques alternatives, axées sur la méthanisation des boues avec production d’énergies, aux méthodes appliquées en Corse. Utilisation de l’outil d’aide multicritère à la décision dans le cadre du surclassement de ces nouveaux procédés“. Thesis, Corte, 2015. http://www.theses.fr/2015CORT0019.
Der volle Inhalt der QuelleSludge quality is directly related to the quality of of these processing steps present in a water treatment plant. In terms of treatment and disposal of sludge, we observe on the part of local actors, a willingness to permanent and lasting abandonment of the sector 'deposit in storage centre'', given a regional plans and regulations (including the PREDIS Corsica), increasingly demanding in terms of valuations of industrial and special waste. We also observe a gradual and planned abandonment of practices for spreading. Indeed, the spreading of sewage sludge is the subject of widespread controversy which highlights the health and environmental risks it would lead to agricultural soils. In our region, this practice is not carried out regulatory manner. In Corsica, the local actors seem to have opted for the solution of compost to enhance the production of sewage sludge. Nearly 2/3 of the annual tonnage MS sludge is currently valued via this pathway. The composting process is equivalent to an aerobic fermentation involving a multitude of microorganisms. This composting stream, as well as spreading, experienced strong expansion of its business but seems to have flaws and limitations: problems with odors; regulatory increasingly demanding; and finally overproduction unsaleable compost to the views of the application.Another solution could present higher advantages: anaerobic digestion with production of electricity and heat from cogeneration. . This energy production go through the biogas produced by this system. Indeed, the biogas is a mixture containing mostly methane (50 – 70 %) and carbon dioxide. Due to a high concentration of methane, biogas is a good energy supplier (1m3 biogas has a calorific value 6 kWh equivalent to 0.6 liters of fuel). To generate electricity, the anaerobic digestion process must be coupled to an engine cogeneration or several microturbines. EDF has the obligation to purchase electricity at a price ranging between 11 and 14 euro cents/kwh. After 15 years, the redemption of the kwh produced is done at the rate offered by EDF.In Corsica, only a treatment plant is equipped with a digester coupled in series to five microturbines, producing heat and electricity cogeneration: The wastewater treatment plant at Campo Dell'Oro /Ajaccio. This energy recovery process could be improved with an eventual replacement of the microtubines by a cogeneration engine. An AMCDP allowed to outperform this technology towards microturbines, much less efficient in terms of performance.The equipment of the highest capacity treatment plants in Corsica, digesters associated with a cogeneration engine could be a lasting solution to the problem of energy recovery of sewage sludge
Le, Hesran Corentin. „Integrating waste minimization concerns in operations scheduling“. Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI111.
Der volle Inhalt der QuelleFaced with growing environmental and economic concerns, the industrial world needs to adapt in order to tackle these issues. Industrial production is responsible for 83% of the global solid waste production and 40% of worldwide energy consumption. Operations scheduling appears to be a promising tool to address both the environmental and economic aspects of this problem. A literature review shows that numerous studies have been focusing on reducing energy consumption. This dissertation focuses on a relatively nascent field, namely the topic of waste generation minimization through operations scheduling. The motivating research question can be formulated as: How to integrate waste minimization into operations scheduling? A state-of-the-art on the subject shows a heterogeneous field with a disparate terminology, and a classification scheme is proposed to help unify research on this topic. To answer the research question, a methodology combining flow assessment tools and scheduling parameters is proposed, which enables the identification of waste-minimizing scheduling opportunities in a production system and the characterization of the corresponding scheduling problem. A case study is carried out and validates the applicability of this methodology and the interest of the results it provides. Based on those results, a single-machine waste-minimizing scheduling problem with reentrance in a make-to-order context is modeled using linear programming. Two solving approaches – one exact and one metaheuristic – are compared, and highlight the potential of operations scheduling to reduce industrial waste. Alternative solutions provide relevant trade-offs to decision-makers, offering significant waste reduction in return for a limited increase in inventory. As this methodology focuses on waste, it paves the way for the integration of new environmental aspects such as energy consumption and atmospheric emissions, as well as the social criteria in order to fully encompass the triple bottom line of sustainable development
Rigaud, François. „L'interface projet-procédé dans l'industrie chimique“. Aix-Marseille 3, 1988. http://www.theses.fr/1988AIX30039.
Der volle Inhalt der QuelleWalosik, Sophie. „Gestion de l'eau dans le procédé de désencrage, problématique et étude de cas“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0016/MQ53608.pdf.
Der volle Inhalt der QuelleGomez, François. „Gestion d'un procédé de vitrification de métaux à partir de coacervats de polyphosphates“. Compiègne, 1998. http://www.theses.fr/1998COMP1091.
Der volle Inhalt der QuelleDubouloz, Sandra. „L'innovation organisationnelle : antécédents et complémentarité : une approche intégrative appliquée au Lean Management“. Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00944182.
Der volle Inhalt der QuelleEynard, Julien. „Gestion optimale de l'énergie dans un procédé multi-source pour le chauffage de bâtiments“. Phd thesis, Université de Perpignan, 2010. http://tel.archives-ouvertes.fr/tel-00536864.
Der volle Inhalt der QuelleRodriguez, Verjan Gloria Luz. „SMART SAMPLING FOR RISK REDUCTION IN SEMICONDUCTOR MANUFACTURING“. Thesis, Saint-Etienne, EMSE, 2014. http://www.theses.fr/2014EMSE0747/document.
Der volle Inhalt der QuelleIn semiconductor manufacturing, several types of controls are required to ensure the quality of final products. In this thesis, we focus on defectivity inspections, which aim at monitoring the process for defect reduction and yield improvement. We are interested in managing and reducing the risk on process tools (i.e. number of wafers at risk) during fabrication. To reduce this risk, inspection operations are performed on products. However, because inspection operations directly impact the cycle times of products, sampling strategies are used to reduce the number of inspected lots while satisfying quality objectives. Several sampling techniques exist and can be classified according to their capability to deal with factory dynamics. Dynamic sampling strategies have recently been proposed, in which lots to inspect are selected in real time while considering the current production risk. These strategies are much more efficient than previous strategies but more complex to design and implement. In this thesis, a novel approach to select the lots to inspect is proposed. Multiple algorithms have been proposed and validated to efficiently manage the defect inspection queues by skipping (i.e. releasing) lots that do no longer bring enough information. In order to support strategic and tactical decisions, an optimization model for defect inspection capacity planning is also proposed. This model calculates the required defect inspection capacity to ensure the risk limits on process tools when the production conditions change. Industrial results show significant improvements in terms of risk reduction without increasing defect inspection capacity