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Academic literature on the topic 'Diffusion fiable'
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Journal articles on the topic "Diffusion fiable"
Ouardighi, Fouad El, and Charles S. Tapiero. "Qualité et diffusion des produits." Recherche et Applications en Marketing (French Edition) 11, no. 4 (December 1996): 35–51. http://dx.doi.org/10.1177/076737019601100402.
Full textLesnoff, Matthieu, François Thiaucourt, Pascal Bonnet, Dominique Bicout, Thomas Balenghien, Sintayehu Abdicho, Geraud Laval, and Renaud Lancelot. "Modèle conceptuel pour prédire la diffusion intra-troupeau de la péripneumonie contagieuse bovine." Revue d’élevage et de médecine vétérinaire des pays tropicaux 55, no. 4 (April 1, 2002): 253. http://dx.doi.org/10.19182/remvt.9811.
Full textPons, Christelle, Aurélie Barrière, Guillaume Bertrand, Marie-Doriane Morard, Charlotte Lilien, and Carole Vuillerot. "SMA: Des échelles d’évaluation motrice pour le public francophone." médecine/sciences 35 (November 2019): 24–28. http://dx.doi.org/10.1051/medsci/2019189.
Full textPHOCAS, F. "L’optimisation des programmes de sélection." INRAE Productions Animales 24, no. 4 (September 8, 2011): 341–56. http://dx.doi.org/10.20870/productions-animales.2011.24.4.3266.
Full textScherman, Michael, Joanna Barros, Rosa Santagata, Alexandre Bresson, and Brigitte Attal-Tretout. "Thermométrie Raman cohérente pour l'étude de la combustion." Photoniques, no. 96 (May 2019): 23–29. http://dx.doi.org/10.1051/photon/20199623.
Full textDupré, Ruth. "Un siècle de finances publiques québécoises : 1867-1969." L'Actualité économique 64, no. 4 (January 28, 2009): 559–83. http://dx.doi.org/10.7202/601470ar.
Full textSimone, Sara. "Paola Lombroso e Zia Mariù: l’ispirazione socialista negli scritti sull’infanzia e per l’infanzia." Forum Italicum: A Journal of Italian Studies 54, no. 1 (March 2, 2020): 331–53. http://dx.doi.org/10.1177/0014585820908693.
Full textBarnier, Jean-Philippe, and David Lebeaux. "L’antibiogramme : interprétation, pièges et nouveautés." Médecine Intensive Réanimation 33, no. 1 (March 29, 2024): 47–60. http://dx.doi.org/10.37051/mir-00194.
Full textBarros Maluly, Luciano Victor, Daniel Azevedo Muñoz, Carla De Oliveira Tôzo, and Andreia Terzariol Couto. "Divulgação Científica em Prol da Luta Ambiental no Brasil." Sur le journalisme, About journalism, Sobre jornalismo 13, no. 2 (December 16, 2024): 78–91. https://doi.org/10.25200/slj.v13.n2.2024.516.
Full textBrandalize, Maria Cecilia, and Alzir Felippe Antunes. "Contributions of remote sensing to the cartographic development of the Brazilian territory: An introductory overview." Revue Française de Photogrammétrie et de Télédétection, no. 198-199 (April 21, 2014): 2–7. http://dx.doi.org/10.52638/rfpt.2012.66.
Full textDissertations / Theses on the topic "Diffusion fiable"
Kermarrec, Anne-Marie. "Diffusion fiable large-échelle." [S.l.] : [s.n.], 2002. http://www.irisa.fr/centredoc/publis/HDR/2002/irisapublication.2005-08-03.2412138638.
Full textSpathis, Prométhée. "Diffusion fiable : l'approche à soutien des routeurs." Paris 6, 2003. http://www.theses.fr/2003PA066592.
Full textBONNIN, JEAN-MARIE. "Vers un service de diffusion fiable a grande echelle : fage." Université Louis Pasteur (Strasbourg) (1971-2008), 1998. http://www.theses.fr/1998STR13145.
Full textVeillard, Daniel. "Conception et réalisation d'un protocole de diffusion fiable pour réseaux locaux." Phd thesis, Université Joseph Fourier (Grenoble), 1996. http://tel.archives-ouvertes.fr/tel-00005020.
Full textSCHNEIDER, RAYMOND. "Un protocole de diffusion pour un service de transfert fiable et ordonne." Université Louis Pasteur (Strasbourg) (1971-2008), 1995. http://www.theses.fr/1995STR13029.
Full textRamos, Ramos Víctor Manuel. "Transmission robuste et fiable du multimédia sur Internet." Phd thesis, Université de Nice Sophia-Antipolis, 2004. http://tel.archives-ouvertes.fr/tel-00311798.
Full textWu, Shiyi. "Protocoles de diffusion dans les réseaux Ad Hoc sans fil." Phd thesis, Télécom ParisTech, 2004. http://pastel.archives-ouvertes.fr/pastel-00000922.
Full textHaddadou, Nadia. "Réseaux ad hoc véhiculaires : vers une dissémination de données efficace, coopérative et fiable." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1023/document.
Full textVehicular Ad Hoc Networks (VANETs) allow sharing different kinds of data between vehicles in a collaborative way. In this thesis, we are particularly interested in road safety applications, designed for the exchange of information on road traffic and conditions. This kind of applications have strict Quality of Service (QoS) requirements, as data must be routed thoroughly and without any delays so for assuring the timely delivery of useful information to the drivers. In this context, data routing must face several issues raised by the high mobility and dispersion of vehicles, inadequate or completely lacking infrastructure, a variable network density, network saturation due to the large of information to deliver, and the size of the geographical areas to cover. Indeed, the problem of data dissemination in VANETs is non-trivial, and several research challenges must be solved in order to provide an efficient, collaborative, and reliable support for road safety applications. Specifically, we will address the problem of collaborative data dissemination through the following three questions: “How to perform data dissemination?”, “When should we do it?”, and “What must be disseminated?” We have provided answers to these questions through the three contributions of this thesis. Our first contribution is an efficient dissemination strategy, specifically tailored to the importance of the exchanged information as well as its lifespan, which is able to avoid the intensive dissemination process that generates network congestion and data redundancy. We confirm our statements and validate the performance of our solution by modeling it using a discrete-time Markov chain, which demonstrates the number of necessary retransmissions for all concerned vehicles to receive information. Moreover, we performed extensive simulations that show a reduction of up to 90% of redundant messages with respect to message flooding dissemination strategies. Next, in order to further improve the road safety message dissemination process, we propose a communications channel access scheduler, which aims at reducing the number of collisions caused by IEEE 802.11p/1609.4 multi-channel synchronizations, and thus improving the data reception rate. We base our solution on the optimal stopping theory, which chooses the right moment to send information by balancing the channel occupancy rate, the data delivery efficiency, and the maximum deferment delay tolerated by the information. To this end, we formulate the optimal stopping theory through a Markov decision process (MDP). We show through simulation-based evaluations an improvement of the reception rate of up to 25% and a reduction of up to 47% of message losses. Finally, after being interested in the quantitative aspect of network performance, we centered our efforts on improving the reliability of the dissemination process, which is obtained by motivating vehicles to cooperate and evicting malicious vehicles from the process. To this end, we propose a trust model inspired on signaling games, which are a type of dynamic Bayesian games. Through the use of our model, equilibrium is achieved, thus resulting in a fast and low-cost vehicle self-selection process. We define the parameters of our trust model through a discrete-time Markov chain model. To the best of our knowledge, our solution is the only existing solution that tackles the negative effects introduced by the presence of both malicious and selfish vehicles in a VANET. We evaluated the performance of our solution by modeling it using a Markov chain, and a set of simulations. Our results show that up to 100% of malicious vehicles are evicted while keeping a high cooperation rate, thus achieving an improvement of 42% when compared to other similar solutions
Albouy, Timothé. "Foundations of reliable cooperation under asynchrony, Byzantine faults, and message adversaries." Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. http://www.theses.fr/2024URENS062.
Full textThis thesis explores fault-tolerant distributed systems. It focuses more specifically on implementing reliable broadcast in asynchronous environments prone to hybrid failures. We introduce a novel computing model combining Byzantine process failures with a message adversary. We then define the Message-Adversary-tolerant Byzantine Reliable Broadcast (MBRB) abstraction and prove its optimal resilience condition. We present three key algorithms implementing this abstraction: a simple signature-based MBRB algorithm, a new primitive called k2l-cast for cryptography-free MBRB implementations, and an erasure-coding-based MBRB algorithm optimizing communication complexity. These contributions advance the understanding of fault-tolerant distributed systems and provide a foundation for designing resilient and efficient distributed algorithms, with applications in critical infrastructures, financial systems, and blockchain technologies
CIPARISSE, JEAN FRANCOIS. "Studio fluidodinamico ed acustico di fiamme diffusive di metano in aria stagnante." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2009. http://hdl.handle.net/2108/1062.
Full textThis Ph.D. thesis belongs to the research field of experimental study of more or less laminarized jets in still air. In the past, the existence of an initial region where the flow velocity doesn’t vary significantly in spite of the interaction with the surrounding air has been demonstrated. The length of this region has been linked to the Reynolds number based on the initial hydraulic diameter of the jet. In the present work, an analogous experimental study concerning methane diffusion flames in still air produced by a wind tunnel (with grids which damp turbulence) and a simple pipe (with the same exit diameter) has been carried on, in order to estimate the influence of initial turbulence level on fluid dynamics. Both the wind tunnel and the pipe are tapered in order to study the behavior of the flames when the methane jet suddenly interacts with the ambient air. We also intend to emphasize the effect of the thickness of the sheet of the slot of the wind tunnel at the exit, so a straight slot (without tapering) and a tapered slot will be used. The flames will be filmed with a digital cam recorder, and their height, the length of the undisturbed region and, in the case of lifted flames, the distance between the flame base and the slot exit will be estimated. This work will end with a spectrum analysis of the sound produced by the flames in order to show the influence of the Reynolds number on the acoustic emission. The thesis is composed of three chapters. In the first one, the structure of air jets in air at rest and of diffusion and lifted flames will be described. At the end of the chapter, a short introduction to acoustics of jets will made. In the second chapter, the whole experimental apparatus will be described. The attention will mainly be focused on the gas plant and on the project of the wind tunnel. In the third chapter, the results relative to the wind tunnel with the tapered tip and the simple pipe (also tapered) and to the straight slot of the wind tunnel will be presented, analyzed and compared. As a conclusion, the results will be summarized and a few developments of the present work will be proposed.