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Academic literature on the topic 'Travail à la chaîne – Évaluation – Modèles mathématiques'
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Dissertations / Theses on the topic "Travail à la chaîne – Évaluation – Modèles mathématiques"
Belmansour, Ahmed-Tidjani. "Évaluation de l'efficacité de lignes de production avec machines multi-états et stocks intermédiaires." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28247/28247.pdf.
Full textHaddad, Samir. "Modèle d'évaluation des performances d'une ligne de production d'une séquence de N produits distincts sur M machines avec (M-1) stocks tampons." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29402/29402.pdf.
Full textCopin, Stéphane. "Modélisation des processus qui sous-tendent la motivation d'un acteur au sein d'une organisation : bases théoriques et exemple d'application." Paris 1, 2000. http://www.theses.fr/2000PA010042.
Full textUntil now only few researchers have used the systemic approach in an explicit way to study human motivation. Even fewer are those who have tried to apply complex system dynamics (applied systemics) to that field of study. But motivation is complex. Firstly because several processes ( often studied separatey), internal and external to the individual , are involved in an interdependent way and secondly because these processes change in time. Systemic analysis, which presents the advantage to be use of practical, and modeling, which allows simulation, seem to be an appropriate approach in attempting to elaborate a dynamic model of human motivation applied to company problems. To reach that objective we show that a systemic rereading of several motivation theories is possible and we establish a generic model involving them. We use a modeling software { "IThink ") to make this model applicable to practical examples. Finally we describe several possible uses to this tool: training, help to decision making and management by objectives
El, Byaz Ranya. "Construction et évaluation de calendriers de livraison pour la livraison à domicile." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/31155.
Full textNowadays, home delivery services have become more and more requested in order to respond to the needs of customers seeking to receive their products as quickly as possible and at a reasonable cost. Home delivery companies have di erent ways of offering time windows to their customers. Some, such as discount banners, aim to provide transportation solutions at minimal cost. These companies offer very little exibility to their customers regarding delivery terms. That's why, some customers could shop at other retailers who offer better service. Other companies offer customers more exibility by providing a wide range of time windows where their delivery could take place. This way of doing things inevitably entails additional costs, since drivers will make deliveries to their zones several times a week. These costs will then be transferred to the sales prices of the company. These two examples are two extreme methods for scheduling deliveries. One prioritizes costs at the expense of customer satisfaction. The second is doing the opposite by focusing more on customer satisfaction at the cost of higher transportation costs. This thesis has as objective to propose new techniques to offer a compromise between these two ends. These techniques will aim to offer many choices to customers while trying to keep shipping costs low. Our resolution scheme is done in two stages: 1. We will use heuristics to generate delivery schedules, 2. We will simulate customer arrivals from which we will calculate different values to measure customer satisfaction with transportation costs. The results will be interpreted in a way that looks at all technical aspects and compares satisfaction with transportation costs. Keywords: Home delivery, customer satisfaction, vehicle routing problem, time windows offer.
Sabar, Mohamed. "Une approche à base d'agents pour la planification et l'ordonnancement en temps réel de personnel dans un contexte de chaîne d'assemblage flexible." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25762/25762.pdf.
Full textJlili, Mohamed Malek. "Analyse et optimisation d'efficacité de réseaux manufacturiers complexes." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29907/29907.pdf.
Full textThis thesis focuses on the analysis and optimal design of manufacturing systems composed of unreliable machinery. The considered systems can operate in an assembly / disassembly structure. Buffer stocks are placed between the machines in order to decouple them from each other. These machines can operate in degraded mode. Each machine is represented as a system with three states: nominal operation, blackout and a degraded mode. We consider that the degraded mode affects only the nominal production rate of machines and not the quality of the parts produced. To assess the rate of production of such a manufacturing system with multi-state machine (called complex), an analytical method is first explored. This method consists on replacing each machine by an equivalent one with two states, and then applying one of the classical methods for networks with binary state machines. After discovering the lack of precision of this method, we used a simulation method based on the software Simio for the optimal design of networks with multi-state machines. In this design, it is about making a joint selection of technologies and buffer sizes between machines. The objective of the optimization is to maximize the rate of production under budget constraints. Most existing works consider the problem of allocating buffer stocks for serial lines or series-parallel when machine technologies are already chosen. Our method is developed and validated using different randomly generated instances. To do this, the developed simulation model is coupled with two optimization methods. The first method uses the OptQuest optimization tool. The second method is a new heuristic based on a genetic algorithm (GA). In each method, the optimizer uses the production rate estimation carried out by the simulation tool in its objective function. Our new method (simulation / GA) is compared to an approach coupling an analytical method to a GA in the case of binary machines. The numerical results illustrate the effectiveness of our method in terms of solution quality at the expense of the less efficient computation time.