Teses / dissertações sobre o tema "Planification de la logistique d'urgence"
Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos
Veja os 50 melhores trabalhos (teses / dissertações) para estudos sobre o assunto "Planification de la logistique d'urgence".
Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.
Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.
Veja as teses / dissertações das mais diversas áreas científicas e compile uma bibliografia correta.
Anaya, Arenas Ana Maria. "Planification de la distribution en contextes de déploiement d'urgence et de logistique hospitalière". Doctoral thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/26564.
Texto completo da fonteOptimisation in distribution is a major concern towards the performance’s improvement of manufacturing and service industries. Together with the evolution of the business’ world and technology advancements, new practical challenges need to be faced by managers. These challenges are thus a point of interest to researchers. This thesis concentrates on the application of operational research (O.R.) techniques to optimise supply chains in two precise contexts: relief distribution and healthcare logistics. These two research domains have grown a lot recently and have major impacts on the population. These are two complex and difficult distribution settings that require a scientific approach to improve their performance and thus warrant the welfare among the population. This thesis’s contributions relate to those two axes. First, we present a systematic review of the available literature in relief distribution (Chapter 2) to consolidate and classify the most important works in the field, as well as to identify the research’s gaps in the current propositions and approaches. This analysis inspires and supports our second contribution. In Chapter 3, we present and evaluate three models to optimise the design of relief distribution networks oriented to fairness in distribution. The models seek to ensure an equitable distribution between the points of demand and in a stable fashion in time. In addition, the models allow the backorder of demand to offer a more realistic and flexible distribution plan. The second research context result from a request from Quebec’s Ministry of Health and Social Services (Ministère de la Santé et des Services sociaux – MSSS). In partnership with the managers of Quebec’s healthcare system, we propose an approach to tackle the biomedical sample transportation problem faced by the laboratories’ network in Quebec’s province. We propose two mathematical formulations and some fast heuristics to solve the problem (Chapter 4). This contribution is later extended to include the opening hours’ synchronisation for the specimen collection centers and the number and frequency of pick-ups. We propose an iterated local search procedure (ILS) to find a routing plan minimising total billable hours (Chapter 5). This leads to an efficient tool to routing planning in the medical laboratories’ network in Quebec.
Cohen, Pierre Loïc. "Vers une délogistisation de l'humanitaire d'urgence ?" Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0632.
Texto completo da fonteOver the past decade, under the combined effects of several factors, the humanitarian sector has been subject to deep transformation. Emergency humanitarian NGOs must rethink their strategies and methods of intervention in order to respond to these changes. The development of new forms of assistance such as the e-assistance, offers to the NGOs alternatives to the very traditional direct and in-kind assistance. These alternatives allow NGOs to disengage from the costly and complex management of logistics operations. Far from being anecdotal, this observation provokes a paradigm shift within the sector and arouses the particular interest of the researcher in Management Sciences but also questions the professional who sees in these developments a form “delogistisation” of the humanitarian aid. This thesis, based on publications consisting of two conference papers and an article, aims to answer the research question: Emergency humanitarian: Which supply chain for which intervention strategy? The research focuses first on understanding the articulation between intervention strategy and logistics strategy within emergency NGOs. Through a prospective analysis, it tries to evaluate how logistics will evolve and transform. The methodology is qualitative, based on interviews and observations conducted in a professional setting adopting the prism of a researcher-actor. This thesis shows that logistics should take several different forms by mobilizing various mechanisms depending on the context of the intervention, the needs of the beneficiaries and the characteristics of the NGO
Li, Jing. "Optimization of emergency logistics for natural disasters". Electronic Thesis or Diss., université Paris-Saclay, 2024. https://www.biblio.univ-evry.fr/theses/2024/interne/2024UPASG072.pdf.
Texto completo da fonteThe emergency logistics planning problem (ELPP) for natural disasters has gained significant attention in recent years due to the increasing frequency and severe impacts of these events on public health and safety. These disasters can be classified into two types: predictable and unpredictable. This study focuses on improving the effectiveness and efficiency of relief efforts for both types of disasters.Unpredictable natural disasters, which occur suddenly with little to no warning, present significant challenges to relief organizations. Existing literature on ELPPs for unpredictable natural disasters (ELPPs-UD) fails to consider the impact of in-kind donations on relief activities and does not fully explore key factors in disaster relief together, such as uncertain demand, transportation, and supply. These oversights can affect the efficiency of relief activities. To bridge this gap, we first study a new ELPP-UD that considers the correlation between in-kind donations and disaster severity, as well as various uncertainties. A novel two-stage distributionally robust optimization model is constructed, and tailor-made column-and-constraint generation (CCG) algorithms are developed to solve the problem. Numerical experiments on a case study and randomly generated instances validate the effectiveness and efficiency of the proposed model and algorithms.Predictable natural disasters are characterized by their ability to be forecasted well in advance. Appropriate forecasting information can be used for earlier disaster warnings and emergency preparedness to improve relief effectiveness. However, the existing literature on ELPPs for predictable disasters (ELPPs-PD) has several research gaps: 1) No study fully considers the relief activities at all three stages simultaneously: pre-warnings, between a warning and the onset of the disaster, and post-disaster. 2) Most studies do not consider both time-dependent uncertainties in the disaster's trajectory and intensity. 3) There is a lack of consideration for transportation options that involve public participation, i.e., crowd-sourced carriers, even though they can be crucial in ensuring a timely disaster response.To bridge these research gaps, the second work of the thesis investigates a novel ELPP-PD that accounts for three-stage relief decisions and time-dependent uncertainties in the disaster's trajectory and intensity together. A novel three-stage distributionally robust optimization model is proposed for the problem. To efficiently resolve the problem, an equivalent deterministic model is provided based on theoretical analysis, and then an enhanced progressive hedging algorithm is proposed. The effectiveness and efficiency of the proposed model and algorithm are evaluated through a case study and randomly generated instances.The third part of the thesis further examines an innovative ELPP-PD that incorporates the use of crowd-sourced carriers. A novel multi-period robust chance-constraint model is proposed, which is then converted into an equivalent deterministic model through theoretical analysis. A heuristic-based CCG algorithm is then developed to effectively solve the problem. Experimental results based on a case study and randomly generated instances demonstrate the good performance of the proposed model and algorithm
Hrouga, Mustapha. "Optimisation de la logistique inverse et planification du désassemblage". Thesis, Troyes, 2016. http://www.theses.fr/2016TROY0021/document.
Texto completo da fonteIn this thesis, we mainly deal with lot sizing problems by disassembling with a structure of products to disassemble with two levels and without commonality components. We treat two different problems. In the first problem, we consider a single product whose contribution focuses on developing the two programming models integers. The first model is considered without lost sales where all demands must be satisfied, and the second one is considered with lost sales where demands may not be met. To solve this problem, we first develop an analytical approach to calculate the surplus stocks (before solving the problem) at the end of the planning horizon. Then we adapt three heuristics known for their performance and widely used in the lot sizing problem of production "Silver Meal, Part Period Balancing and Least Unit Cost". In the second problem, we consider a number of products with capacity constraint, and the contribution relates to the extension of the two previous models. The first is considered without lost sales and the second with lost sales. Regarding the resolution of this problem and given its complexity, a genetic algorithm is first proposed. Then, to improve this algorithm, we integrate a Fix-and-Optimize heuristic in the latter while offering a hybrid approach. Finally, various tests are performed on different literature instances to demonstrate the effectiveness and limitations of each solving approach
Gharbi, Hassen. "Planification réactive et robuste au sein d'une chaîne logistique". Phd thesis, INSA de Toulouse, 2012. http://tel.archives-ouvertes.fr/tel-00782594.
Texto completo da fontePhouratsamay, Siao-Leu. "Coordination des décisions de planification dans une chaîne logistique". Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066547/document.
Texto completo da fonteThis thesis focus on the coordination of planning decisions in a two-level supply chain composed of one supplier and one retailer. Each actor wants to minimize his own cost. The planning decisions independently took by the actors can lead to a poor performance in terms of costs, hence the necessity of coordination. We study cost sharing mechanisms between the actors by designing contracts. In this work, we consider the case where the retailer (resp. supplier) can impose his optimal production plan to the supplier (resp. retailer). Different cost sharing hypothesis, as well as the asymmetric information problem are taking into account in this thesis. We also perform an experimental analysis in order to evaluate the decrease of the supply chain cost obtained when the actors cooperate. This context leads us to study new lot-sizing problems for which we propose a complexity analysis and dynamic programming algorithms in order to solve them. We also propose a theoritical study of two-level lot-sizing problems with inventory bounds
Phouratsamay, Siao-Leu. "Coordination des décisions de planification dans une chaîne logistique". Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066547.
Texto completo da fonteThis thesis focus on the coordination of planning decisions in a two-level supply chain composed of one supplier and one retailer. Each actor wants to minimize his own cost. The planning decisions independently took by the actors can lead to a poor performance in terms of costs, hence the necessity of coordination. We study cost sharing mechanisms between the actors by designing contracts. In this work, we consider the case where the retailer (resp. supplier) can impose his optimal production plan to the supplier (resp. retailer). Different cost sharing hypothesis, as well as the asymmetric information problem are taking into account in this thesis. We also perform an experimental analysis in order to evaluate the decrease of the supply chain cost obtained when the actors cooperate. This context leads us to study new lot-sizing problems for which we propose a complexity analysis and dynamic programming algorithms in order to solve them. We also propose a theoritical study of two-level lot-sizing problems with inventory bounds
Arnoux, Cyrille. "Mise en place de la chaîne logistique dans une situation d'urgence humanitaire". Mémoire, École de technologie supérieure, 2011. http://espace.etsmtl.ca/920/1/ARNOUX_Cyrille.pdf.
Texto completo da fonteTrojet, Mariem. "Planification d'une chaîne logistique : approche par satisfaction de contraintes dynamiques". Phd thesis, INSA de Toulouse, 2014. http://tel.archives-ouvertes.fr/tel-00996957.
Texto completo da fonteBlouin, Alexandre. "Planification en logistique du transport : de la pratique à la théorie". Compiègne, 2007. http://www.theses.fr/2007COMP1706.
Texto completo da fonteWithin the context of a CIFRE contract, four real life problems encountered by the company OPTILOGISTIC are studied in this Thesis. OPTILOGISTIC produce software packages for transportation, from the optimisation of vehicle routing to the vehicle navigation. We perform original and effective methods like an adaptation of A * Algorithm in order to manage trailer in vehicle routing problem. Likewise, two kinds of inventory routing problem are analysed. Heuristics are suggested to solve the first one which concerns replenishment of a plant from several suppliers. For the second one, we couple the choice of inventory replenishments politic with routing construction in order to satisfy customers' demands minimizing routing cost. Finally, we study a driver scheduling problem for which we develop two exact methods based on cut generation
Gomez, Urrutia Edwin David. "Optimisation intégrée des décisions en planification et ordonnancement dans une chaîne logistique". Thesis, Saint-Etienne, EMSE, 2014. http://www.theses.fr/2014EMSE0744/document.
Texto completo da fonteIn this thesis, we study the optimization of flow planning and scheduling, within a strategy to integrate decisions for supply chain planning at tactical level, taking into account operational constraints. The goal of this work is to address the need for consistency between decisions arising from production planning and scheduling. These decisions are often taken in a sequential order, leading most of the time to unfeasible production plans. We propose an integrated approach to solve single-level and multi-level problems in multi-item multi-resource systems configured as job-shops.Both capacitated production planning and scheduling problems, in complex manufacturing systems, are NP-hard. Therefore, integrating constraints of both problems generates a new problem which is even more difficult to solve. We propose a decomposition of the integrated problem into a set of several sub-problems with fixed sequence, solved by Lagrangian Relaxation. The sequence improvement is guided by a Tabu Search. The efficiency of the integrated approach comparing to a standard solver is proved in terms of solution quality and computational effort. In case of multi-level problems, we propose a new mathematical model based on the concept of echelon stock, as well as new algorithms and smoothing strategies to build production plans respecting detailed capacity and bill-of-materials constraints
Lu, Zhiqiang. "Planification hiérarchisée et optimisation des systèmes logistiques avec flux inverses". Nantes, 2003. http://www.theses.fr/2003NANT2006.
Texto completo da fonteOgier, Maxime. "Contributions à la chaine logistique numérique : conception de circuits courts et planification décentralisée". Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00981923.
Texto completo da fonteHerrera, Carlos. "Cadre générique de planification logistique dans un contexte de décisions centralisées et distribuées". Phd thesis, Université Henri Poincaré - Nancy I, 2011. http://tel.archives-ouvertes.fr/tel-00639761.
Texto completo da fonteHerrera, Carlos. "Cadre générique de planification logistique dans un contexte de décisions centralisées et distribuées". Electronic Thesis or Diss., Nancy 1, 2011. http://www.theses.fr/2011NAN10046.
Texto completo da fonteThis thesis is concerned with the foundations of the planning and control logistics systems and shows the interest of the PDS (Product-driven Systems) applied in this context. The development of such systems must consider the coherence between the different components. Centralized systems offer long terms plans aiming an optimal cost, but also some stability and nervousness reduction. Distributed systems allow a fast reaction to perturbations happening in the physical system. Then, the hybridization of these two kinds of planning and control systems is a way of increase productivity for logistic and industrial systems. The first chapter of the thesis describes the evolution of the production planning and control systems, to identify forces and weaknesses of the different approaches proposed until our days and allow to define the general objective of the thesis. Chapter two analyses the state of the art concerning the tools for modeling hybrid centralized/distributed production systems and also the concept of product-driven systems. This chapter serves as a basis to define the specific objectives of the thesis. Chapter three introduces the proposed modeling framework. This framework is based on a cybernetic approach, and more specifically in the Viable System Model (VSM). The chapter starts with a general presentation of VSM and then introduces a generic framework to model PDS. Finally, this chapter describes an application for production planning and control. Chapter four defines the different decision methods developed for the implementation of the generic model defined in the chapter three. At centralized and distributed levels these methods are based on mathematical programming models. Chapter five shows the main results of an application based on an industrial case which required the development of a simulation tool which considers variables of short, médium and long terms for the different optimization models. These results show the interest of this type of hybridization
Hellion, Bertrand. "Contrats de stabilité pour la planification tactique dans une chaîne logistique : nouveaux modèles de dimensionnement de lot". Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENI032/document.
Texto completo da fonteOur focus is the supply relationship between a retailer and its suppliers. In fact, we defined stability contracts between these actors and study their impacts. At a tactical level, it is equivalent to solve a lot sizing problem under specific constraints, which are defined by the contract features. We showed that several variants of the lot sizing problem can be optimally solved in polynomial time. We studied the stability contract by performing numerous experiments. Then we tried to adapt the stability contract to a real case study : the canadian pulp and paper industry
Duret, Benjamin. "Du transport routier de marchandises à la logistique : L'émergence d'un outil de planification juridique". Nice, 2001. http://www.theses.fr/2001NICE0013.
Texto completo da fonteGruat, La Forme-Chretien France-Anne. "Référentiel d'évaluation de la performance d'une chaîne logistique : application à une entreprise de l'ameublement". Lyon, INSA, 2007. http://theses.insa-lyon.fr/publication/2007ISAL0074/these.pdf.
Texto completo da fonteIn this thesis, we have selected two key success factors on which an organisation can base its strategy to support its products' competitivity and its supply chain agility: the resources competence management and coUaborative usage across tbe supply chain. We develop an evaluation model based on these two key success factors. The first one characterises the collaborative perfonnance and the collaborative behaviour of the firm. These two elements are liked in order to underline various actions to improve the enterprise performance. The second model concerns a scheduling problem with parallel different human resources. After the modelling of the competence notion, we develop various planning approaches to improve the perf01mance of the enterprise. Both of these models are applied to the industrial case of Ligne Roset enterprise
Ramdane-Cherif, Wahiba. "Problèmes d'optimisation en tournées sur arcs". Troyes, 2002. http://www.theses.fr/2002TROY0006.
Texto completo da fonteThis thesis deals with vehicle routing problems in which a subset of arcs must be treated in a network. Such problems are relatively neglected compared to node routing problems, despite important applications like waste collection, snow plowing or inspection of power lines. The CARP (Capacitated Arc Routing Problem) is the main academic problem of that kind, but it is not sophisticated enough to handle real-life applications. The thesis investigates three new problems generalizing the CARP: the ECARP (Extended CARP), that copes with very realistic networks with one-way and two-way streets, prohibited turns, multiple dumping sites, etc. ; the SCARP (Stochastic CARP), whose the aim is to compute robust solutions, keeping their quality in case of imprecise data ; the PCARP (Periodic CARP), a long-term planning problem in which treatment days must be assigned to each street, subject to given frequencies, before computing the trips for each day, in order to minimize a total cost over the horizon considered. These problems are modelled and then solved thanks to new algorithms that are appraised on classical and new benchmark instances. A hybrid genetic algorithm is proposed for the first time for the CARP. It outperforms all published methods and allows one to solve to optimality several open instances from literature. This algorithm is extended in a non-trivial way to handle the ECARP, the SCARP and the PCARP. Our research also describes fast heuristics for large scale instances and a cutting plane algorithm for the ECARP. This work illustrates the power and flexibility of genetic algorithms and reduces in a significant way the gap existing between academic vehicle routing problems and industrial applications
Souid, Mahdi. "Résolution approchée d'un problème de tournées de véhicule avec contraintes d'accessibilité". Valenciennes, 2003. http://www.theses.fr/2003VALE0041.
Texto completo da fonteIn a competitive context, enterprises must improve the efficiency of their logistical chains, in order to optimize the factors cost and time of service. A fundamental element of all logistical system is the management and the scheduling of distribution networks. Our survey consists in treating a problem of location and routing called Vehicle Routing Problem with Accessibility constraint (VRPA). The problematic consists in supplying, at least cost, a set of customers with a road-train composed of a truck and a trailer, while taking account the accessibility constraint. We proposed two models for the VRPA and developed three heuristics for resolution of the PTVA. First, we implement methods that can be considered as two phases methods. The first phase consists in solving a location problem and the second phase to solve routing problems. Then, we present methods of resolution of the PTVA based on variable neighbourhood search method. Finally, we present three tabu search methods for the resolution of the PTVA
Fontanille, Eric. "Planification des secours médicaux : contribution des exercices de simulation à l'élaboration d'un plan rouge insulaire martiniquais". Lyon 1, 1993. http://www.theses.fr/1993LYO1M227.
Texto completo da fonteEl, Rifai Sierra Omar. "Gestion des ressources humaines d'un service d'urgence en période épidémique". Thesis, Saint-Etienne, EMSE, 2015. http://www.theses.fr/2015EMSE0802/document.
Texto completo da fonteIn France, the problem of overcrowding in Emergency Departments (ED) is particularly relevant today because of increasing admissions and budget restrictions in health establishments. Formally, overcrowding can be defined as a situation where the demand surpasses the service capacity. Studies that have dealt with ED overcrowding have mostly dealt with issues of patient flow management and resource management.Our work focuses on resource management and more particularly on the impact that human resources have on ED overcrowding. In the first part of the study, we formulate the capacity allocation problem in a generic form. As such, we examine the capacity management problem and derive interesting properties for a general demand distribution and a normal demand distribution. Then, we examine the cyclic shift scheduling problem as it exists in ED. This research allows us to examine different cyclic scheduling strategies and answer the question of whether lack of flexibility in the schedules has an impact on the waiting time of patients. We propose an original stochastic linear formulation for the problem that accounts for the non-stationary work demand. After that we evaluate two scheduling mechanisms to reduce overcrowding in EDs: on-call duties and overtime hours. We study the conditions under which these mechanisms can be beneficial. The on-call duties problem is modeled as a two-stage stochastic optimization problem and the overtime management problem as a Markov decision problem
Baklouti, Zeineb. "Système de planification de chemins aériens en 3D : préparation de missions et replanification en cas d'urgence". Thesis, Valenciennes, 2018. http://www.theses.fr/2018VALE0033.
Texto completo da fonteHelicopter flight planning is a key factor in the aeronautics domain in order to ensure a safe mission at a reduced cost taking into consideration different environmental parameters like terrain, weather, emergency situations, etc. This challenge concerns both the mission preparation phase using a ground station and also during the flight to cope with a complex event (mechanical failure, dynamic obstacle, bad weather conditions, etc.). We quote as a first example a Search and Rescue mission that should be performed in limited time to locate persons in danger. To achieve that, the generated flight path must follow the terrain profile at relatively low altitudes crossing the predefined waypoints. The objective is to allow the pilot to locate a victim in a short time. Another example for a mission of medical assistance where the helicopter should ensure the comfort of patients as well as minimizing the flight time to respect critical situations. During the flight, when a complex event occurs such as engine failure, re-planning the mission becomes necessary in order to find a new path that could guarantee safe landing. Unfortunately, pilots do not benefit from an embedded 3D path planning system that enables dynamic mission re-planning in case of emergency. To tackle the challenge of generating an optimal flight plan, we proposed new path planning system dedicated to mission preparation and dynamic path re-planning during critical situations. The planning system can be deployed on a ground station or embedded as an avionic function in the aircraft. The achieved results are registered as a patent at National Institute of Intellectual Property and deployed inside Airbus Helicopters through several technology transfers. The system relies on 3D space discretization and shortest path planning techniques to generate automatically flexible path profiles that respect several. The proposed solution is generic and is able to adapt to the aircraft model, mission and the objective function to be minimized. The path planning system can offer solutions with different tradeoffs between timing and path quality within the available runtime depending on the criticality of the situation. The functioning of the path planning system consists mainly of two phases : preprocessing and routing phase. The preprocessing allows a multi-altitude discretization of the 3D space according to a given precision and generate automatically a navigation graph with a configurable density. The 3D routing phase calculates the path by considering a set of constraints such as horizontal and vertical angular limitations and the objective function such as distance, fuel, time, etc. During the graph exploration phase, the path planning system can communicate with the aircraft performance model to evaluate a given criterion. Automatic flight path generation is an essential building block for designing pilot assistance systems and autonomous aircraft. In summary, we succeeded to reach the industrial expectations namely : the evaluation of mission feasibility, performances improvement, navigation workload reduction, as well as improving the flight safety. In order to realize the proposed solution, we designed a new tool for automatic 3D flight path planning. We named our tool DTANAV : Demonstration Tool for Aircraft NAVigation. It allows to apply the proposed planning process on real scenarios. Through the tool interface, the user has the possibility to set the parameters related to the mission (starting point, end point, aircraft model, navigation ceiling, etc.). Other algorithmic parameters are defined in order to control the quality and the profile of the generated solution
Boudia, Mourad. "Coordination de la planification de la production et de la distribution". Troyes, 2006. http://www.theses.fr/2006TROY0012.
Texto completo da fonteThis thesis studies an optimisation problematic in supply chain. Usually, production planning is treated without considering the distribution level and handles rarely transportation costs. In the same way, vehicle routing problems suppose that the amounts to be delivered are known and work on a production plan already built. This work presents a coordinated optimisation method in which a production plan and delivery trips are simultaneously built, over several periods. This approach is mostly profitable in sectors where production costs are of the same order as tranportations costs, like livestock feed or fertilizers industry. Two main parts compose this thesis. The first one considers the case with one product. One mathematical model is presented and several heuristics reinforced by local search are developped. More powerful methods based on the GRASP metaheuristic with path-relinking and on memetic algorithms are also elaborated. The second part is devoted to the case with several products and ressources conflicts. A iterative and hybrid approach is developed for this configuration. It is based on the solution of one linear program representing the production planning and on a tabu search metaheuristic with post-optimisation procedures for the distribution level. All the methods presented in this theses for the two cases are validated by an intensive testing. Significant savings are obtained compared to classical decoupled methods, that consider production and distribution separately
Abdi, Ibrahim Fathiya. "La logistique urbaine". Thesis, Paris 2, 2019. http://www.theses.fr/2019PA020021.
Texto completo da fonteUrban logistics deals with how to transport goods by optimizing the various flows that circulate within the center of a city. This integrates into its functionality several environmental, economic, urbanization issues. However, commercial activities can not be carried out without the urban transport activity.On the one hand, the main objective of this study is to research the existing determinants of urban logistics in developed countries to improve the design of urban logistics at DJIBOUTI, concerning the organizational concepts of goods transport activities in cities, urban infrastructures , the regulations put in place in the context of urban logistics.On the other hand it is a question of putting in place an urban logistics specific to DJIBOUTI.Today the challenges in the Republic of Djibouti are:- Undertaking to make the logistics in the city more competitive and related to the environment;- Associate in a planning plan the movements of the goods.Thus the utility of our research is to organize the transport of goods in the city, to design an urban logistics that meets the needs of tomorrow. Freight issues are a major challenge for public authorities in charge of managing the mobility, accessibility and sustainability of cities and the entire territory. This is essential for Djibouti to develop its urban trade that is realized within the city by having the largest container terminal in East Africa. On the other hand, the urban logistics sector is still in an embryonic state
Jia, Zhenzhen. "Planification décentralisée des activités de production et de transport : coordination par négociation". Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14734/document.
Texto completo da fonteThe present work aims to study the coordination problems in the context of decentralized planning, based on the postulate that centralized management is not suitable regarding the confidentiality objectives of each partner of the same supply chain. More specifically, the aim of this work is to develop a negotiation protocol seeking to reach a “win-win” planning solution, i.e. the development of plans satisfying the producer (the customer of transportation service) while increasing profit of transport operators. The development methodology of this work contains two phases. The context of decentralized planning of activities of one producer and one transport operator is firstly studied. The main objective is to characterize the linear programming models and the key determinants to develop the coordination protocol and also to implement the simulation of both partners in order to identify the factors affecting the overall performance. The conducted experimentation in this context is based on the concept of the design of experiments. The problem is extended in a second phase to the coordination of several transport operators with one producer. In this new context, the problem of allocating transport load to different transport operators is integrated into the negotiation process. The complemented models and protocol are validated based on test cases
Rota, Karine. "Coordination temporelle de centres gérant de façon autonome des ressources : application aux chaînes logistiques intégrées en aéronautique". Toulouse, ENSAE, 1998. http://www.theses.fr/1998ESAE0013.
Texto completo da fonteJoly, Alexandre. "Étude de modes de fonctionnement réactifs et robustes aux aléas sur le flux de production d'une usine terminale automobile". Grenoble INPG, 2005. http://www.theses.fr/2005INPG0019.
Texto completo da fonteSavard, Mylène. "Planification stratégique d'un réseau logistique : Cas d'une entreprise forestière au Québec et de ses activités d'approvisionnement". Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28440/28440.pdf.
Texto completo da fonteDelafenestre, Régis. "Contribution à l'amélioration méthodologique du processus de planification logistique tactique en environnement multi-sites : une application à l'industrie européenne d'appareils sanitaires en céramique". Le Havre, 2009. http://www.theses.fr/2009LEHA0018.
Texto completo da fonteThis thesis proposes to demonstrate the contribution of Information Technology and Communication (ICT) to improve the process of tactical multi-sites logistics planning with an application to industry European ceramic sanitary ware. Logistics processes are changing thank to ICT, we have a substitution of manual tasks by computing tasks. Our objective was to develop by using ICT, a process of tactical logistics planning in manufacturing of ceramic sanitary ware. Our research relied on interviews, direct observations, simulation, and construction methods. Analysis of technological innovations possibilities allowed to include the ERP during the methodology construction. The objective is to facilitate the assimilation of these technologies to achieve a match between computerized system and business processes and thus to develop success factors. At the end, it was not only a new method of planning, but also a study of impacts of ICT on the tactical planning process. The method is an iterative process between the field and theories. But it seems that the essence is in the succeeding generation methods. Common points exist between each method, with ICT integration growing. This is not reproducible method itself but the degree of assimilation of ICT
Liu, Xiaoming. "La logistique et aménagement du territoire : comparaisons entre les expériences françaises et chinoises". Thesis, Paris Est, 2012. http://www.theses.fr/2012PEST1177.
Texto completo da fonteLogistics is a key function in economic development, for production and for distribution, it gives birth to an emerging new industry. Logistics is also a key factor of spatial functioning and organization, requiring an adequate attention and priority in planning. A comparison of Chinese and French experiences dealing with "freight villages" throws light on the major stakes and questions of introducing logistics into urban and regional planning agenda. This thesis tries to take stock of experiences of ways to take into account logistics and his characteristics in urban and regional planning
Miegeville, Nicolas. "Supply chain optimization in the process industry : methods and case study of the glass industry". Châtenay-Malabry, Ecole centrale de Paris, 2005. http://www.theses.fr/2005ECAP0995.
Texto completo da fonteNowadays, a highly competitive environment makes of the service level impact a fundamental element for formerly production oriented companies. Global supply chain thinking gives a new impetus to transversal missions such as logistics management. This thesis is nothing but an illustration of this new philosophy within the Saint-Gobain group, which has decided to create an operations research group to identify and solve high potential optimization problems. After a brief overview of our approach, we discover in chapter 1 a synthesis of the Saint-Gobain Glass business -producing, adding value and delivering at glass- and the various decisions that make the supply chain management a very complex task. Following chapters present optimization problems that we identified as key ones. First of all, we define in chapter 2 a model to handle the yearly standard product determination, based on the economic trade-off between the glass loss along the vertically integrated supply chain and the management cost of various references. Other chapters aim at introducing an original global method for modelling complex industrial supply chains, fully presented in chapter 6. To do so, we study successively the definition and localization of facilities in chapter 3 and the modelling ofproduction processes: chapter 4 introduces our production planning model and illustrates it on the at glass production, whereas chapter 5 presents the complementary work required to apply it to transformation lines. Finally, chapter 6 deals with the synthesis of all these works into a unique mixed integer linear program. Our research is the result of a successful collaboration between academics and industrials
Ortiz, Araya Virna Angélica. "Proposition d'un modèle de désagrégation pour un plan tactique stable dans le contexte des chaînes logistiques et de l'usage d'un APS". Nancy 1, 2005. http://www.theses.fr/2005NAN10194.
Texto completo da fonteCurrently, enterprises are looking for a method to know how much to produce and when. Furthermore, they want to have a global vision of their production system and logistics. Thus, the supply chain management is responsible for insuring and optimizing the level of service to the customers, while assuring the best profitability for the company. To answer these objectives, we show in this thesis the interest of tactical plan and the way to determine detailed plans (MPS), by using a hierarchical structure (HPP). In this context, we propose a disaggregation methodology at two-levels that allows identification of “stable” MPS, by taking into account “robust and stable” forecasted plans (SOP). Optimization models are proposed as well as constraints which take into account decisions relative to each level, in order to insure consistency between them. Finally, we apply a treatment model for the real demand by using the AR (p) process, in order to render more stable the different MPS determined
Li, Yantong. "Modèles et algorithmes pour une classe de problèmes combinés de production et de tournées de véhicules". Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLE036/document.
Texto completo da fonteThe production routing problem (PRP) consists of determining an integrated production and distribution planning that aims to optimize overall cost and improve service level. Although the PRP has been attracting academic and practical interests, it has not been well studied in the literature. Food production routing problem (FPRP) that is more complex than the classic PRP due to food perishability, has rarely been studied. This thesis focuses on developing new models and algorithms for the PRP and FPRP.Firstly, a multi-product PRP with outsourcing (MPRPOS) that is a generalization of the classic PRP is addressed. For the problem, a mixed integer linear programming (MILP) model is proposed and a three-level heuristic is designed. Computational experiments on 225 newly generated MPRPOS instances and 1530 PRP benchmark instances demonstrate the effectiveness and efficiency of the proposed heuristic. Especially, 283 new best solutions for PRP benchmark instances are found by the heuristic.Considering food quality and perishability, and based on the study for the PRP, three new FPRPs are then investigated, i.e., 1) a multi-plant FPRP with packaging consideration (MFPRP); 2) a bi-objective FPRP (BFPRP) that minimizes the total supply chain cost and maximizes food quality simultaneously; and 3) a FPRP with delivery time window constraints (FPRPTW). For each of the studied problems, a MILP model is proposed. Moreover, a hybrid matheuristic that combines a two-phase iterative method, a fix-and-optimize procedure, and a route-based optimization is developed for the MFPRP. For the BFPRP, an epsilon-constraint-based heuristic and a fuzzy logic decision method are proposed to generate near-optimal Pareto solutions and to help decision makers select a preferred solution. And the FPRPTW is directly solved by the state-of-the-art solver CPLEX. A case study shows the proposed model and algorithm for BFPRP can improve food supply chain performance. Computational results on randomly generated instances demonstrate the proposed hybrid matheuristic and epsilon-constraint-based heuristic outperform CPLEX
Bellalem, Lotfi. "Contribution à la conception et la mise en œuvre d'un système d'aide fondé sur la planification interactive dédié à la CAO". Metz, 1998. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1998/Bellalem.Lotfi.SMZ9827.pdf.
Texto completo da fonteMoita, Michel. "Management par la logistique globale d'un réseau de PME-PMI". Toulon, 2003. http://www.theses.fr/2003TOUL2003.
Texto completo da fonteThe premises of our research can be described through a two-fold professional challenge. The France is under-equipped in terms of removable containers. What should be done to reduce this handicap? The S. C. M. (Supply Chain Management or global logistics) software are out of reach for small and midsize companies. How can they be organized in order to make them accessible? Our paper is designed in five parts: the introduction presents the teilhardian weltanschauung, the axiomatic of our research, the refutations of the "true thought", the modelling leads of the object and, the validation by the satisficing. The theoretical corpus of out thesis is founded on three theories : the constructivism, the General System, Simon "administrative " theory. We chose the field of the consular Chambers. We realized that the construction from scrap of a network is not realistic in the context of our thesis which led us to propose the systemic metaphor of the "Chambre de métiers" of Haute-Savoie
Cossard, Nicolas. "Un environnement logiciel de modélisation et d'optimisation pour la planification de la production dans la chaîne logistique". Clermont-Ferrand 2, 2004. http://www.theses.fr/2004CLF21548.
Texto completo da fonteKande, Sona. "Etude et résolution de problèmes de planification dans des réseaux logistiques multi-échelons". Thesis, Troyes, 2015. http://www.theses.fr/2015TROY0015/document.
Texto completo da fonteThis work presents a planning problem in a distribution network incorporating two levels inventory management of perishable products, lot-sizing, multi-sourcing and transport capacity with a homogeneous fleet of vehicles. A mixed integer linear programming (MILP) a greedy heuristic and a reactive randomized heuristic are developed to solve this real planning problem. There are some instances for which the solver CPLEX cannot give a good upper bound within the limited time and for other instances it takes a lot of time to solve MILP. The heuristics are alternatives to the mixed integer linear program to quickly solve some large instances taking into account original and difficult constraints. For some instances the gap between the solutions of the solver (MILP) and the heuristics becomes quite significant. The variable neighborhood descent (VND), the iterated local search (ILS) and the multi-start iterated local search (MS-ILS) are implemented. These methods are included in an APS (Advanced Planning System) and compared with a MILP solver. The instances are derived from actual data or built using a random generator of instances to have wider diversity for computational evaluation. A lagrangian relaxation is developed to compare the solutions of the instances, for which CPLEX cannot give a good upper bound within the limited time, with the other methods (greedy heuristic, VND, ILS and MS-ILS). A lagrangian heuristic is proposed; the solution of lagrangian relaxation is used to build a feasible solution with a repair heuristic
Moad, Kamel. "Modélisation et optimisation multi-niveaux du transport forestier". Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0101/document.
Texto completo da fonteThe present manuscript tackles the supply chain forest transportation problem in the context of forestry primary industry. In this context, several risks may affect the forest supply chain: the unpredictable weather conditions (tree falling provoked by major storms); sanitary emergencies (tree pest and diseases); and, diverse commercial circumstances (the variability of market demands). The aforementioned issues motivate the diverse forest sector protagonists (entrepreneurs, forest operators and drivers) to seek support for improving their logistic operations. The aim of this effort is to improve the service quality (offer-demand agreement) diminishing in this way the total costs. Therefore, the main goal of this thesis is the proposal of a novel management model which improves forest-to-mill transport performance. At the same time, the proposed model accounts for the forest sector manners and constraints. The contribution of this thesis is threefold: first a transportation model is developed, later on the transport planning is managed, and finally an optimization procedure is proposed.The thesis results propose a hierarchical planning for the forestry transportation. Two decision levels are suggested: tactic and operational. At a tactic level, a multi-period optimization is considered. The multi-period optimization strategy meets the customer supply demands while minimizes the global transportation activity. Such strategy takes into account the restrictions of the total available transportation means. Moreover, at this level the activity balancing politics may be developed, as well as subcontractors coordination between transport companies. On the other hand, at the operational level, the tactic planning assigned for each transporter is divided so an optimization of the fleet’s transport assignation is done considering the vehicles constraints.The decision process is modelled as a Mixed Linear Programming formulation. The application considers a data set coming from the industry settled at the Aquitaine region in France. The results have shown a significant improvement on the transport capabilities with respect to the conventional transport practices.It is worth to mention that the decision models were designed such that they may be adapted to different context either collaborative or not. In both cases, the tactic planning has a generic purpose, in other words, it is independent of the kind of organization involved, whereas specific organizations are taken into account when planning actors’ activities at the operational level
Laoufi, Mourad. "Localisation d'usagers de la route en détresse par réseau de radiocommunications cellulaire d'appel d'urgence dédié". Valenciennes, 2003. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/ed82afc8-7cf5-47a8-a9c6-8f2f897bc9b0.
Texto completo da fonteSimultaneously to the considerable development of wireless communication networks, an important need appears in accurate position location for mobile emergency call, owing to the directives adopted by the Federal Communications Commission (FCC) and the European Commission. To deal with these technical regulations, the operators and mobile networks manufacturers pay a particular attention to research activities on the distress call location accuracy requirements. This thesis presents a new alert and emergency warning system based on a GSM and UMTS dedicated cellular radio network operated along highways and motorways. By offering some of the services defined under the Intelligent Transport System (ITS) initiative, it aims at enhancing and improving road safety. Some specific radio coverage aspects, related to the particular topology of the dedicated cellular network, are examined. Different mobile position location techniques are also analyzed and compared in the context of this dedicated cellular network. Then, the work focuses on the performance of the Time Difference Of Arrival (TDOA) technique along a motorway dedicated cellular network. The experimental results for the mobile location by the TDOA technique using a GSM network, obtained at the laboratory and over a geographic flat and free of obstacles area, are then reported and discussed. This enables us to evaluate the feasibility and accuracy of the TDOA technique for GSM mobile position location under the effect of the key following parameters: sampling rate, signal/noise ratio and multipath environment. The performances of the mobile position location using the TDOA technique in UMTS and GSM networks are finally compared under various situations
Carrera, Susana. "Planification et ordonnancement de plateformes logistiques". Electronic Thesis or Diss., Vandoeuvre-les-Nancy, INPL, 2010. http://www.theses.fr/2010INPL061N.
Texto completo da fonteThe aim of this thesis is to provide decision support systems to control logistic platforms at the mid-term and short-term levels. Several problems and main notions concerning logistic platform context are described in the first part. In the second part, planning problems are studied. Two linear programming models are proposed to minimize the workforce costs. These models take into account several characteristics : seasonal flow variations, work and flow organization in the platform, and local negotiations of the upstream and downstream flows. In consequence, our decision support system can be used in the flow coordination between supply chain partners. Two types of negotiations are considered : negotiations of upstream and downstream delivered quantities and negotiation of delivery dates. These models have been tested on pertinent randomly generated instances inspired from concerete problems. In the third part of the thesis, the external flows of the platforme are assumed to be fixed. Orders preparation scheduling problem inside the platform is considered. Two families of strong contraints are combined : staircase availability of components (consumable resources) and dixed delivery dates. According to the way the downstream deliveries are organized and penalised, three different cases (based on industrial applications) have been studied. We proposed three branch and bound procedures for these problems, and an integer linear program for the easiest problem. Experimental analysis has been done over heterogeneous randomly generated instance families. In the last part, a series of perspectives for this work are proposed
Fall, Alioune. "Planification des activités en logistique inverse : modélisation et optimisation des performances par une approche stochastique en programmation linéaire". Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0071/document.
Texto completo da fonteDuring the last decades, reverse logistics networks have been launched in severalindustrialized countries with the aim of preserving the environment. The implementation andmanagement of the reverse logistics concerns the different levels (strategic, tactical andoperational) existing in the framework of forward logistics for any production system. Toimprove this type of network, modeling and simulation are effective tools. After presenting astate of the art in this domain, our study focuses on the planning of two sub-systems of thereverse logistics chain (i.e. collection-sorting and disassembly) on the tactical level that is tosay the medium term. The aim of this work is to propose a generic model by linearprogramming in a multi-product and multi-period context, which searches for maximizingthe total profit of the sub-system studied, taking into account the uncertainty of the productssupplied. The integer linear model (deterministic, stochastic and stochastic assessment) is thusformulated around a profit constrained by the sub-system capacity, the evolution of incomingand outgoing inventory and the delivery of products to customers: a delivery policyauthorizing the quality degrading of products or not
Lalami, Idris. "Planification de la production des usines de mécanique en coordination avec les usines d'assemblage de véhicules". Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAI012.
Texto completo da fonteThe objective of this thesis is to provide a production planning tool for a supplier and to explore ways to improve the coordination between this supplier and customer plants. Based on a case study in the automotive industry, this thesis considers the case of powertrain plants (units producing engines, gearboxes, and chassis parts) that supply the car assembly plants.By analyzing the customer plant demand, we highlight the variability causes of this demand and we propose ways to improve coordination with the supplier through a more efficient information sharing. To plan the production of the supplier, we propose a mathematical model which is a mixed integer linear program. This model provides a detailed production plan respecting existing constraints and targeting four objectives: satisfying the forecasted demand, reaching safety stock levels, balancing stock levels between products, and leveling the production. The value of this model is demonstrated by tests using real data. As this model is intended to be used as part of a rolling horizon planning, we analyze the influence of two parameters: planning frequency and length of the frozen horizon. We give recommendations on the choice of these parameters to ensure a good tradeoff between service level, inventory, and planning stability. Finally, to improve the coordination between the customer plants and the supplier, two ways are in particular investigated: improving the accuracy of the forecasts sent to supplier and lengthening the time allowed to fulfill the demand. The value of implementing these proposals is evaluated by simulation
Moad, Kamel. "Contribution à la planification tactique et opérationnelle du transport forestier". Doctoral thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/27035.
Texto completo da fonteCette thèse est une contribution à la modélisation, la planification et l’optimisation du transport pour l’approvisionnement en bois de forêt des industries de première transformation. Dans ce domaine, les aléas climatiques (mise au sol des bois par les tempêtes), sanitaires (attaques bactériologiques et fongiques des bois) et commerciaux (variabilité et exigence croissante des marchés) poussent les divers acteurs du secteur (entrepreneurs et exploitants forestiers, transporteurs) à revoir l’organisation de la filière logistique d’approvisionnement, afin d’améliorer la qualité de service (adéquation offre-demande) et de diminuer les coûts. L’objectif principal de cette thèse était de proposer un modèle de pilotage améliorant la performance du transport forestier, en respectant les contraintes et les pratiques du secteur. Les résultats établissent une démarche de planification hiérarchique des activités de transport à deux niveaux de décision, tactique et opérationnel. Au niveau tactique, une optimisation multi-périodes permet de répondre aux commandes en minimisant l’activité globale de transport, sous contrainte de capacité agrégée des moyens de transport accessibles. Ce niveau permet de mettre en œuvre des politiques de lissage de charge et d’organisation de sous-traitance ou de partenariats entre acteurs de transport. Au niveau opérationnel, les plans tactiques alloués à chaque transporteur sont désagrégés, pour permettre une optimisation des tournées des flottes, sous contrainte des capacités physiques de ces flottes. Les modèles d’optimisation de chaque niveau sont formalisés en programmation linéaire mixte avec variables binaires. L’applicabilité des modèles a été testée en utilisant un jeu de données industrielles en région Aquitaine et a montré des améliorations significatives d’exploitation des capacités de transport par rapport aux pratiques actuelles. Les modèles de décision ont été conçus pour s’adapter à tout contexte organisationnel, partenarial ou non : la production du plan tactique possède un caractère générique sans présomption de l’organisation, celle-ci étant prise en compte, dans un deuxième temps, au niveau de l’optimisation opérationnelle du plan de transport de chaque acteur.
The present manuscript tackles the supply chain forest transportation problem in the context of forestry primary industry. In this context, several risks may affect the forest supply chain: the unpredictable weather conditions (tree falling provoked by major storms); sanitary emergencies (tree pest and diseases); and, diverse commercial circumstances (the variability of market demands). The aforementioned issues motivate the diverse forest sector protagonists (entrepreneurs, forest operators and drivers) to seek support for improving their logistic operations. The aim of this effort is to improve the service quality (offer-demand agreement) diminishing in this way the total costs. Therefore, the main goal of this thesis is the proposal of a novel management model which improves forest-to-mill transport performance. At the same time, the proposed model accounts for the forest sector manners and constraints. The contribution of this thesis is threefold: first a transportation model is developed, later on the transport planning is managed, and finally an optimization procedure is proposed. The thesis results propose a hierarchical planning for the forestry transportation. Two decision levels are suggested: tactic and operational. At a tactic level, a multi-period optimization is considered. The multi-period optimization strategy meets the customer supply demands while minimizes the global transportation activity. Such strategy takes into account the restrictions of the total available transportation means. Moreover, at this level the activity balancing politics may be developed, as well as subcontractors coordination between transport companies. On the other hand, at the operational level, the tactic planning assigned for each transporter is divided so an optimization of the fleet’s transport assignation is done considering the vehicles constraints. The decision process is modelled as a Mixed Linear Programming formulation. The application considers a data set coming from the industry settled at the Aquitaine region in France. The results have shown a significant improvement on the transport capabilities with respect to the conventional transport practices. It is worth to mention that the decision models were designed such that they may be adapted to different context either collaborative or not. In both cases, the tactic planning has a generic purpose, in other words, it is independent of the kind of organization involved, whereas specific organizations are taken into account when planning actors’ activities at the operational level.
Jlassi, Jihen. "Amélioration de la performance par la modélisation des flux logistiques des patients dans un service d'urgence hospitalier". Phd thesis, Université Paris VIII Vincennes-Saint Denis, 2009. http://tel.archives-ouvertes.fr/tel-00637849.
Texto completo da fonteJlassi, Jihène. "Amélioration de la performance par la modélisation des flux logistiques des patients dans un service d'urgence hospitalier". Paris 8, 2009. http://octaviana.fr/document/146714687#?c=0&m=0&s=0&cv=0.
Texto completo da fonteEmergency departments have become a useful way to access hospital and it is a subject of study for many researchers. The research developed in this thesis aims to improve the performance of the emergency department (ED) of Habib Bourguiba Sfax Hospital and to minimise the cycle time of patients. In fact, the assessment of the performance of system has two steps: the first step is the modelling permitting the system to the model and the second step is the analysis of performances of the model. We started by the description and the modelling of the process by which pass the patients. We first used the extensions of IDEF3 called IDEF3x. In fact IDEF3 is a process description capture method whose primary goal is to provide a structured method by which a domain expert can describe a situation as an ordered sequence of events. Then, we proposed to move to the analysis step by the application of the two complementary techniques: the simulation and queuing networks. We proposed a simulation model which enables us to define indicators to evaluate the performance of the ED of Sfax hospital. The study consists of drawing a passage from a graphic model IDEF3x to a WITNESS model. We applicated the multiclass networks of queues to validate the results got by the simulation model. So booth results are coherent, they show that patients wait a long time to be served in both steps: the specialist physician and the generalist physician in the second passage of the patients. Thus we used the tree diagram and the fuzzy AHP method to determine the inductive of performance on which we have acted and launched again the Witness model. We finished by the application of the fuzzy PROMETHEE II method to the improvement of actions. These works lead us to conclude that analysis methods and management tools from manufacturing systems can be used to hospital systems. On the other hand, they are used to help the managers of the emergency department of Habib Bourguiba hospital to determine and to classify by order of importance the actions of improvement which permit the minimization of the cycle time of patients
Guillaume, Romain. "Gestion des risques dans les chaînes logistiques : planification sous incertitude par la théorie des possibilités". Phd thesis, Université Toulouse le Mirail - Toulouse II, 2011. http://tel.archives-ouvertes.fr/tel-00700518.
Texto completo da fonteSerrano, montero Christian. "Planification et ordonnancement des activités dans un centre de crossdock international". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEM029.
Texto completo da fonteIn order to accelerate product flow, reduce inventory levels and make economies in transportation, companies in almost all industries have set up cross-dock centres. These centres are an intermediate point of consolidation in a supply chain. Car manufacturers Renault and Nissan rely on an international network of crossdock platforms to link suppliers of OEM parts with overseas production plants. In a framework of an academic-industrial partnership between the LIMOS laboratory and Renault, this thesis focuses on the activity planning and scheduling at these crossdock centres.Field studies conducted at Renault and Nissan allowed us to identify the characteristics, constraints and cost drivers of crossdock platforms, as well as to target our review of the literature. Based on this, we propose a sequential optimization approach, comprising two integer linear programming models, implemented in CPLEX and tested on industrial data of two Renault platforms. Numerical experiments’ results obtained on the first model (planning) showed a significant improvement in cost, compared to the Renault method. In light of this results, an industrial implementation was made, with such convincing results. The second model (scheduling) proved to be relevant for medium-sized instances. The proposed approach fits to the current configuration of AILN Renault and we consider that it is adaptable to other industries
Miegeville, Nicolas. "Optimisation de la chaîne logistique dans l'industrie de process. Méthodes et application à l'industrie du verre plat". Phd thesis, Ecole Centrale Paris, 2005. http://tel.archives-ouvertes.fr/tel-00275284.
Texto completo da fontesatisfait sa demande bouleverse les fondements des organisations anciennement pensées sous l'angle de la production. Phénomène tout à fait perceptible dans un grand
groupe industriel comme Saint-Gobain, à forte culture ingénieur, cette prise de
conscience donne un nouvel élan aux métiers transversaux focalisés à la fois sur
l'optimisation du schéma industriel et de la chaîne logistique. Cette thèse est une
illustration de cette évolution : l'intérêt porté aux problèmes d'optimisation des systèmes industriels et logistiques est relativement récent à Saint-Gobain Recherche.
Nous nous sommes intéressés dans nos travaux à différents problèmes industriels
complémentaires rencontrés chez Saint-Gobain Glass, leader de la production de
verre plat en Europe. Nous avons apporté des solutions mettant en lumière l'interdépendance de différentes décisions à des problèmes industriels complexes, avec un
souci constant de produire des outils d'aide à la décision utiles et appréciés.
Après un avant-propos rappelant le sens de notre démarche, nous découvrirons
dans le chapitre 1 le contexte industriel qui a motivé notre recherche. Nous présentons
les métiers du groupe - produire, transformer et distribuer du verre plat - et les
différents niveaux de décision que nous avons décidé d'aborder. Les chapitres suivants
présentent les problèmes d'optimisation que nous avons identifiés et qui nous sont
apparus comme clés.
Nous abordons dans le chapitre 2 un modèle permettant de déterminer les dimensions
des produits standards. L'intégration verticale du groupe permet l'étude
du meilleur compromis entre les chutes de verre tout au long de la chaîne logistique
et le nombre de références à gérer. La suite de la thèse tend à aboutir à une modélisation complète du schéma industriel et logistique et fait l'objet du chapitre 6. Pour cela, nous traitons les questions de localisation d'installations logistiques (chapitre 3) et de modélisation des processus de production : le chapitre 4 présente notre modèle
et l'illustre avec la production de verre plat, tandis que le chapitre 5 présente un
travail complémentaire permettant de l'appliquer aux lignes de transformation. Finalement, nous intégrons dans le chapitre 6 tous ces travaux dans un modèle linéaire
en nombres entiers.
Fruit d'une véritable collaboration entre chercheurs et industriels, ce travail présente
un modèle générique déterministe d'optimisation de la chaîne logistique appliqué avec succès à l'industrie du verre. De nombreuses perspectives dignes d'intérêt
sont imaginables, autant théoriques que pratiques.
Galasso, François. "Aide à la planification dans les chaînes logistiques en présence de demande flexible". Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2007. http://tel.archives-ouvertes.fr/tel-00149437.
Texto completo da fonte