Academic literature on the topic 'Contrôleurs adaptatifs'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Contrôleurs adaptatifs.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Contrôleurs adaptatifs"
Naudan, Chrystelle, and André Pezziardi. "Les villes moyennes en Occitanie : des adaptations nécessaires." Gestion & Finances Publiques, no. 2 (March 2021): 61–69. http://dx.doi.org/10.3166/gfp.2021.2.009.
Full textMoletta, R. "Contrôle et conduite des digesteurs anaérobies." Revue des sciences de l'eau 2, no. 2 (April 12, 2005): 265–93. http://dx.doi.org/10.7202/705031ar.
Full textJacquemin, Alexis. "Les enjeux de la nouvelle économie industrielle." L'Actualité économique 65, no. 1 (February 3, 2009): 8–20. http://dx.doi.org/10.7202/601477ar.
Full textCharbonnier-Voirin, Audrey, and Assâad El Akremi. "L’effet de l’habilitation sur la performance adaptative des employés." Autres articles 66, no. 1 (June 28, 2011): 122–49. http://dx.doi.org/10.7202/1005109ar.
Full textLebreton, Fanny, Charles-Henri Wassmer, Kevin Belofatto, Thierry Berney, and Ekaterine Berishvili. "Organoïdes sécréteurs d’insuline." médecine/sciences 36, no. 10 (October 2020): 879–85. http://dx.doi.org/10.1051/medsci/2020129.
Full textFOUGERONT, Nicolas. "Neurophysiologie de l’occlusion : des sciences fondamentales à la pratique clinique." Actualités Odonto-Stomatologiques, no. 290 (June 2018): 3. http://dx.doi.org/10.1051/aos/2018043.
Full textLE BIHAN-DUVAL, E., C. BERRI, F. PITEL, J. NADAF, V. SIBUT, V. GIGAUD, and M. DUCLOS. "Approches combinées de génomique positionnelle et expressionnelle pour l’étude des gènes contrôlant la qualité de la viande chez les volailles." INRAE Productions Animales 21, no. 2 (June 23, 2008): 159–66. http://dx.doi.org/10.20870/productions-animales.2008.21.2.3389.
Full textPoisson, A. "Les hallucinations dans la maladie de Parkinson." European Psychiatry 29, S3 (November 2014): 578. http://dx.doi.org/10.1016/j.eurpsy.2014.09.276.
Full textParent, Geneviève. "L'industrie laitière canadienne devant les contraintes de la réglementation internationale de l'Organisation mondiale du commerce." Les Cahiers de droit 41, no. 3 (April 12, 2005): 513–66. http://dx.doi.org/10.7202/043614ar.
Full textZossou, Espérance, Seth Graham-Acquaah, John Manful, Simplice D. Vodouhe, and Rigobert C. Tossou. "Les petits exploitants agricoles à l’école inclusive : cas de l’apprentissage collectif par la vidéo et la radio sur la post-récolte du riz local au Bénin." International Journal of Biological and Chemical Sciences 15, no. 4 (November 19, 2021): 1678–97. http://dx.doi.org/10.4314/ijbcs.v15i4.29.
Full textDissertations / Theses on the topic "Contrôleurs adaptatifs"
Turki, Marwa. "Synthèse de contrôleurs prédictifs auto-adaptatifs pour l'optimisation des performances des systèmes." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMR064.
Full textEven though predictive control uses concrete parameters, the value of these latter has a strong impact on the obtained performances from the system to be controlled. Their tuning is not trivial. That is why the literature reports a number of adjustment methods. However, these ones do not always guarantee optimal values. The goal of this thesis is to propose an analytical and original tuning tuning approach of these parameters. Initially applicable to linear MIMO systems, the proposed approach has been extended to non-linear systems with or without constraints and for which a Takagi-Sugeno (T-S) model exists. The class of nonlinear systems considered here is written in quasi-linear parametric form (quasi-LPV). Assuming that the system is controllable and observable, the proposed method guarantees the optimal stability of this closed-loop system. To do this, it relies, on the one hand, on a conditioning improving technique of the Hessian matrix and, on the other hand, on the concept of effective rank. It also has the advantage of requiring a lower computational load than the approaches identified in the literature. The interest of the proposed approach is shown through the simulation on different systems of increasingcomplexity. The work carried out has led to a self-adaptive predictive control strategy called "ATSMPC" (Adaptive Takagi-Sugeno Model-based Predictive Control)
Hoinville, Thierry. "Evolution de contrôleurs neuronaux plastiques : de la locomotion adaptée vers la locomotion adaptative." Versailles-St Quentin en Yvelines, 2007. http://www.theses.fr/2007VERS0022.
Full textLes recherches menées en robotique évolutionniste se sont avant tout focalisées sur l'évolution de contrôleurs neuronaux structurellement et paramétriquement figés, pour la locomotion de robots qui roulent, marchent, nagent ou volent. Cette démarche a permis la conception de contrôleurs bien adaptés à des environnements constants, mais non adaptatifs aux variations de ceux-ci. Pour y remédier, certains roboticiens ont suggéré de faire évoluer des neuro-contrôleurs non plus figés, mais plastiques. Notre approche s'inscrit dans ce revirement et vise à ce que les robots à pattes puissent adapter leur locomotion aussi bien aux perturbations extérieures, qu'aux éventuelles détériorations de leurs structures mécaniques. Nous proposons en premier lieu une revue des phénomènes de plasticiténeuronale et de leur modélisation, destinée essentiellement aux roboticiens. Nous dressons ensuite un état de l'art de l'évolution de neuro-contrôleurs plastiques et critiquons la plausibilité biologique des modèles développés. Notre première contribution s'inspire des travaux de la robotique évolutionniste et aborde le dilemme de l'évolution de contrôleurs à la fois flexibles et stables. Ainsi, nous employons des contraintes homéostatiques pour stabiliser la plasticité de contrôleurs assurant la locomotion d'un robot monopode confronté à une perturbation freinant son avancée. Notre deuxième contribution s'inspire des connaissances acquises sur les générateurs centraux de pattern (CPG) et leur plasticité. Ainsi,nous proposons l'évolution d'oscillateurs à relaxation soumis à neuromodulation pour la locomotion adaptative d'un robot myriapode confronté à d'éventuelles amputations de pattes
Alvaro, Mendoza Carlos Enrique. "Control strategies for permanent magnet synchronous machines without mechanical sensors by sliding modes." Thesis, Ecole centrale de Nantes, 2022. http://www.theses.fr/2022ECDN0055.
Full textThis thesis proposes two adaptive sensorless controls based on sliding mode approach for interior permanent magnet synchronous motor(IPMSM). The proposed strategies are composed of an Adaptive High-Order Sliding Mode Observer (AHOSMO) in closed-loop with an Adaptive Super- Twisting Control (ASTWC), where the control and observer gains of the proposed strategy are reparameterized in terms of a single parameter. Then, the main advantage of this strategy is the adaptable laws are easy to implement, avoiding overestimates of gains that increases of chattering, reducing the time to tune the gains, and reducing the damage of the actuators. Furthermore, a strategy for angular position estimation error extraction is proposed. Then, from this information and using a parameter-free virtual system, AHOSMO isdesigned for estimating the angular position and speed in a wide speed range, where the estimated variables provided by this observer are obtained with greater precision, despite the variations of the parameters, achieving greater robustness. These estimated states are used in the proposed robust control to track a desired reference of speed and direct-axis current. A stability analysis of the closedloop system is presented, using a Lyapunov approach. In addition, the proposed strategy is validated throughout experimental and simulationset-up in order to show its effectiveness
Moez, Tnani Mohamed. "Adaptation d'algorithmes de synthèse de contrôleurs." Mémoire, Université de Sherbrooke, 2001. http://savoirs.usherbrooke.ca/handle/11143/4542.
Full textAn, Xin. "High level design and control of adaptive multiprocessor system-on-chips." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENM023/document.
Full textThe design of modern embedded systems is getting more and more complex, as more func- tionality is integrated into these systems. At the same time, in order to meet the compu- tational requirements while keeping a low level power consumption, MPSoCs have emerged as the main solutions for such embedded systems. Furthermore, embedded systems are be- coming more and more adaptive, as the adaptivity can bring a number of benefits, such as software flexibility and energy efficiency. This thesis targets the safe design of such adaptive MPSoCs. First, each system configuration must be analyzed concerning its functional and non- functional properties. We present an abstract design and analysis framework, which allows for faster and cost-effective implementation decisions. This framework is intended as an intermediate reasoning support for system level software/hardware co-design environments. It can prune the design space at its largest, and identify candidate design solutions in a fast and efficient way. In the framework, we use an abstract clock-based encoding to model system behaviors. Different mapping and scheduling scenarios of applications on MPSoCs are analyzed via clock traces representing system simulations. Among properties of interest are functional behavioral correctness, temporal performance and energy consumption. Second, the reconfiguration management of adaptive MPSoCs must be addressed. We are specially interested in MPSoCs implemented on reconfigurable hardware architectures (i.e., FPGA fabrics), which provide a good flexibility and computational efficiency for adap- tive MPSoCs. We propose a general design framework based on the discrete controller syn- thesis (DCS) technique to address this issue. The main advantage of this technique is that it allows the automatic controller synthesis w.r.t. a given specification of control objectives. In the framework, the system reconfiguration behavior is modeled in terms of synchronous parallel automata. The reconfiguration management computation problem w.r.t. multiple objectives regarding e.g., resource usages, performance and power consumption is encoded as a DCS problem. The existing BZR programming language and Sigali tool are employed to perform DCS and generate a controller that satisfies the system requirements. Finally, we investigate two different ways of combining the two proposed design frame- works for adaptive MPSoCs. Firstly, they are combined to construct a complete design flow for adaptive MPSoCs. Secondly, they are combined to present how the designed run-time manager by the second framework can be integrated into the first framework so that high level simulations can be performed to assess the run-time manager
Hamelin, Jean-François. "Contrôle d'un réacteur de blanchiment à l'aide d'un contrôleur adaptatif à modèles pondérés." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0016/MQ53579.pdf.
Full textMessier, David. "Conception d'un contrôleur adaptatif et implantation sur un système de climatisation à débit d'air variable." Mémoire, École de technologie supérieure, 2005. http://espace.etsmtl.ca/327/1/MESSIER_David.pdf.
Full textLibbrecht, Christophe. "Contrôleur évolutif et optimisé pour les miroirs déformables ferrofluidiques dans le cadre de l'optique adaptative." Doctoral thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/25943.
Full textAdaptive optics is an evolving technology and integrated part of many applications. Its contributions extend from the astronomical imaging to the data transmission in telecommunications domain including the improvement of ophthalmologic diagnostics. Its main asset consists of its deformable mirrors and, thus, its ability to correct a signal degraded by random perturbations. There are many kinds of deformable mirrors. These with a continuous surface and also with several segments. A great variety of methods exists to control the surface geometry: hydraulics, piezoelectric, electrostatic and magnetic systems have been developed in the last years. The most recent creation in adaptive optics is the ferrofluidic mirror. The ferrofluidic mirrors have many advantages. First, their manufacturing cost is very low. Moreover, a simple combination of magnetic fields is required to modify the shape of their surface and can give strong amplitudes of deformation (about millimeter). These mirrors are developed and studied in the COPL laboratory of Université Laval where they are the main target of the actual work. Nowadays the constant increasing number of actuators decrees the development of optimized methods to control deformable mirrors. A captured image or signal can require from some tens to several hundreds of Hertz to be corrected. The calculations must be at their fastest. On other hand, the increasing number of actuators raises a question about what strategy to deploy for getting the best control on the surface of deformable mirrors. Do we use a single controller for all the actuators? Or on the contrary do we need to equip each actuator with a dedicated controller? For any chosen strategy, the most important step is the calibration phase. In adaptive optics, this procedure is quite simple even though it sometimes takes a long time for finding the optimized parameters. What is the best method to calibrate a controller? Is an automatic calibration possible? Can we develop an evolving controller able to adapt to environmental variations without human action. There is some interrogation about the best way to apply th strategy. Can it be more efficient? Are there any limitations? If so, can we solve them? The subject of this document is to answer the previous questions regarding ferrofluidic mirrors. The final purpose of this work is to develop an evolving and optimized controller able to manage systems with several tens as well as several hundreds of actuators and, also, adapt itself to variations of surrounding conditions.
Tamisier, Lucie. "Adaptation des populations virales aux résistances variétales et exploitation des ressources génétiques des plantes pour contrôler cette adaptation." Thesis, Avignon, 2017. http://www.theses.fr/2017AVIG0696/document.
Full textPlants carrying major resistance genes have been widely used to fight against diseases. However, the pathogensability to overcome the resistance after a few years of usage requires the search for efficient and durable resistances.The objectives of this thesis were (i) to identify plant genomic regions limiting pathogen evolution by inducinggenetic drift effects and (ii) to study the impact of the evolutionary forces imposed by the plant on the pathogenability to adapt to resistance, the goal being to further use these forces to limit pathogen evolution. The pepper(Capsicum annuum) – PVY (Potato virus Y) pathosystem has been mainly used to conduct these researches.Regarding the first objective, quantitative trait loci (QTL) were mapped on a biparental pepper population andthrough genome-wide association on a pepper core-collection. These approaches have allowed the detection ofgenomic regions on chromosomes 6, 7 and 12 controlling viral effective population size during the inoculationstep. Some of these QTLs were common to PVY and CMV (Cucumber mosaic virus) while other were virusspecific.Moreover, the QTL detected on chromosome 6 colocalizes with a previously identified QTL controllingPVY accumulation and interacting with a QTL affecting the breakdown frequency of a major resistance gene.Regarding the second objective, a correlation analysis between the evolutionary forces imposed by the plant andan experimental estimation of the durability of a major resistance gene has been done. Experimental evolution ofPVY populations on plants contrasted for the levels of genetic drift, selection and virus accumulation they imposedhas also been performed. Both studies demonstrated that a plant inducing a strong genetic drift combined to areduction in virus accumulation limits virus evolution and could even lead to the extinction of the virus population.These results open new perspectives to deploy plant genetic factors directly controlling pathogen evolutionarypotential and could help to preserve the durability of major resistance genes
Navas, Matos Francisco. "Analyse de stabilité pour la reconfiguration de contrôleurs dans des véhicules autonomes." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEM050/document.
Full textBenefits of autonomous vehicles are genuinely exciting, but the route to true autonomy in transportation will likely be long and full of uncertainty. Research on the last years is on the development of multi-sensor systems able to perceive the environment in which the vehicle is driving in. These systems increase complexity when controlling an autonomous vehicle, as different control systems are activated depending on the multi-sensor decision system. Each of these systems follows performance and stability criteria for its design, but they all must work together, providing stability guarantees and being able to handle dynamics, structural and environmental changes. This thesis explores the Youla-Kucera (YK) parameterization in dynamics systems such as vehicles, with special emphasis on stability when some dynamics change or the traffic situation demands controller reconfiguration. Focus is in obtaining simulation and experimental results related to Cooperative Adaptive Cruise Control (CACC), with the aim not only of using for the very first time YK parameterization in the Intelligent Transportation Systems (ITS) domain, but improving CACC state-of-the art. Stable controller reconfiguration results are given when non-available communication link with the preceding vehicle, cut-in/out maneuvers or surrounding vehicles with different dynamics, proving adapability, stability and possible real implementation of the YK parameterization as general control framework for autonomous vehicles
Book chapters on the topic "Contrôleurs adaptatifs"
Fafard, Pierre, and Jean-Paul Boulot. "Conception d'un Contrôleur À Micro-ordinateur Dédié au Soudage Adaptatif." In Automation and Robotisation in Welding and Allied Processes, 57–67. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-032533-0.50009-8.
Full text