Academic literature on the topic 'Propagation des Données'
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Journal articles on the topic "Propagation des Données"
Roy, Axel, Hélène Chabbert, Alice Dalphinet, Emmanuel Dormy, Corinne Dubois, Victoire Laurent, Sophie Martinoni-Lapierre, and Marie Peniguel. "Climatologie des vagues à partir d’une réanalyse à résolution 0,05° en Polynésie française." La Météorologie, no. 128 (2025): 027. https://doi.org/10.37053/lameteorologie-2025-0009.
Full textMUTERO BELESI, Blaise. "Evaluation de l’observance des mesures préventives et de limitation de la propagation du covid-19 à l’HGR/ d’Ilebo." REVUE DES SCIENCES DE LA SANTE 1, no. 1 (December 20, 2022): 31–33. https://doi.org/10.71004/rss.022.v1.i1.07.
Full textBalbi, J. H., P. A. Santoni, and J. L. Dupuy. "Dynamic modelling of fire spread across a fuel bed." International Journal of Wildland Fire 9, no. 4 (1999): 275. http://dx.doi.org/10.1071/wf00005.
Full textBraun, Robert, and Daniel Solomon. "Popular Hatreds and the Spread of Kristallnacht Violence. Evidence from Children’s Stories." Annales de démographie historique 145, no. 1 (January 26, 2024): 49–72. http://dx.doi.org/10.3917/adh.145.0049.
Full textBarragán-Ochoa, Fernando. "La pandémie de coronavirus en Équateur : une lecture spatiotemporelle de l’évolution de la mortalité pendant la première année." L’Espace géographique Tome 51, no. 2 (November 13, 2023): 121–38. http://dx.doi.org/10.3917/eg.512.0121.
Full textMichael, RALIJAONA Ahazia, RAKOTOVAO Ndimbinarimalala Philémon, RALIJAONA Mbolahasina Soanandrianina, and RATIARISON Adolphe Andriamanga. "Simulation Numérique De La Propagation Des Vagues Franchissant Un Obstacle Et Modélisation Des Résultats Obtenus Par Réseau De Neurones Et Neuro-Flou." International Journal of Progressive Sciences and Technologies 34, no. 2 (October 5, 2022): 15. http://dx.doi.org/10.52155/ijpsat.v34.2.4610.
Full textArsenault, Daniel. "Les Mochica et la mort." Culture 8, no. 2 (February 4, 2022): 19–38. http://dx.doi.org/10.7202/1085910ar.
Full textEl Jaouhari, Maryem, Rojiemiahd Edjoc, Lisa Waddell, Patricia Houston, Nicole Atchessi, Megan Striha, and Samuel Bonti-Ankomah. "Incidence de la fermeture et de la réouverture des écoles sur la transmission de la COVID-19." Relevé des maladies transmissibles au Canada 47, no. 12 (December 10, 2021): 572–81. http://dx.doi.org/10.14745/ccdr.v47i12a02f.
Full textBESNIER, Jean-Baptiste, Frédéric CHERQUI, Gilles CHUZEVILLE, and Aurélie LAPLANCHE. "Amélioration de la connaissance patrimoniale des réseaux d’assainissement de la métropole de Lyon." TSM 12 2023, TSM 12 2023 (December 20, 2023): 169–77. http://dx.doi.org/10.36904/tsm/202312169.
Full textSimonetto, Elisabeth, Frédéric Durand, Laurent Morel, Jean-Luc Froger, and Joëlle Nicolas. "InSAR tropospheric correction combining GNSS data and a global atmospheric model." Revue Française de Photogrammétrie et de Télédétection, no. 217-218 (September 21, 2018): 3–9. http://dx.doi.org/10.52638/rfpt.2018.414.
Full textDissertations / Theses on the topic "Propagation des Données"
Stattner, Erick. "Contributions à l'étude des réseaux sociaux : propagation, fouille, collecte de données." Phd thesis, Université des Antilles-Guyane, 2012. http://tel.archives-ouvertes.fr/tel-00830882.
Full textHenry, Didier. "Modèles de propagation de l'information et méthodes de sciences des données." Thesis, Antilles, 2018. http://www.theses.fr/2018ANTI0323/document.
Full textNowadays, online social media has transformed the way we create, share and access information. These platforms rely on gigantic networks that promote the free exchange of information between hundreds of millions of people around the world, and this instantly.Whether related to a global event or in connection with a local event, these messages may influence a society and may contain information useful for the detection or prediction of real-world phenomena.However, some broadcast messages can have a very negative impact in real life. These messages containing false information can have disastrous consequences.To avoid and anticipate these dramatic situations, follow rumors, avoid bad reputations, it is necessary to study and then model the propagation of information.However, most of the diffusion models introduced are based on axiomatic hypotheses represented by mathematical models. As a result, these models are far removed from the users' dissemination behaviors in that they do not incorporate observations made on concrete dissemination cases. In our work, we study the phenomenon of diffusion of information at two scales. On a microscopic scale, we observed diffusion behaviors based on the personality traits of users by analyzing the messages they post in terms of feelings and emotions. On a macroscopic scale, we analyzed the evolution of the diffusion phenomenon by taking into account the geographical dimension of the users
Richa, Jean Raphaël. "Amélioration de l'ingénierie des données dans les environnements connectés grâce à la détection de la propagation et de l'obsolescence des données." Electronic Thesis or Diss., Pau, 2024. http://www.theses.fr/2024PAUU3077.
Full textThe relentless expansion of digital technologies has enhanced the capabilities of collecting, visualizing, analyzing, and autonomously managing the environment surrounding us.Intelligent and increasingly connected is the prevailing trend within the rising metaverse, where connected environments are driven to gather a plethora of data.These environments contribute to a better understanding of human activities, improve quality of life, and ease paths for sustainability.This thesis introduces two pivotal concepts - zone continuum and data obsolescence - furthering awareness of connected environments by explaining how data crosses between zones and detecting when data becomes irrelevant with respect to its environment.By addressing these overlooked aspects, we aim to improve data interpretation and management within connected environments.This thesis addresses four key challenges: (1) designing a deep and expressive data model that effectively captures the core components of connected environments, such as hosting zones, smart devices, and their corresponding sensor networks; (2) establishing a mechanism to discover and trace how data propagates between different zones; (3) proposing a large-scale approach to detect data obsolescence while considering the entire environment; and (4) handling the dynamic nature of the CE that could be illustrated by the mobility and failure of the devices, as well as modifications in zone configurations (e.g., combining multiple zones into one or dividing a single zone into several).To address these challenges, we first propose the HSSN+ data model, which underpins a resilient representation of the elements in connected environments.Consequently, in light of this model, we put forward two interconnected frameworks. The first one is the Zone Continuum Computation for Connected Environments (ZCCCE) framework that formalizes the zone continuum concept and enables to understand how data moves between zones. The second one is the Data Obsolescence Detection in Connected Environments (DODCE) framework which offers a structured approach to identify and compute the data obsolescence based on predefined quality indicators.These two frameworks provide opportunities for effective control and understanding in connected environments
Gillier, Martin. "Environnement acoustique de la surface de Mars : analyse des données des microphones de Perseverance et modélisation de la propagation du son." Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0040.
Full textOn February 18, 2021, the Perseverance rover landed in Jezero crater on the surface of Mars. Since then, the two microphones on board have acquired dozens of hours of sound recordings, paving the way for a new method of studying the Martian surface environment. It is within this framework that this thesis takes place, studying the propagation of sound waves on the surface of Mars through the analysis of Martian data and modeling.After briefly discussing how the work presented in this thesis lies at the crossroads of Mars exploration and the study of the atmosphere by acoustic means, the specifics of the data acquired by Martian microphones are presented. I focus in particular on the problem of saturation, to show how the constraints inherent in operating a microphone on the surface of Mars have an impact on this phenomenon, and how desaturation methods make it possible to mitigate this risk to some extent. All the audio recordings are then shown in the form of a catalog, with a presentation of the characteristics of each sound source, from both an individual and statistical point of view. The scientific applications enabled by each type of recording are also described. Secondly, work on modeling sound propagation on the surface of Mars is presented. I first describe how to use a physics-based acoustic model to derive the speed of sound and the acoustic attenuation coefficient at all points on the surface of Mars at all times. Then, I show how the use of an atmospheric acoustics model allows us to account for all the phenomena present on the surface of Mars that have an influence on sound propagation.The result of this thesis is, on the one hand, a demonstration of the scientific interest of using acoustic methods to study the atmosphere and surface of other planets and, on the other, a model enabling us to predict the sound field created by a specific source at all points on the surface of Mars at all times. The lessons learned from this work on the use of microphones for planetary science, and the modeling methods developed here, will be useful for future missions carrying acoustic instruments to other bodies in the Solar System
Sauvé, Alexandre. "Caractérisation des effets systématiques de l'instrument Planck/HFI, propagation et impact sur les données scientifiques." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30362/document.
Full textPlanck is an ESA spacecraft launched in 2009, its mission goal was to map with an exquisite precision the first light of Universe, to help understanding how it has formed. This ambitious objective requires a very high level of control on the instrumental effects. During the mission, it has been found that the component responsible of the digitization of scientific data introduced an unexpectedly high bias effect, preventing full exploitation of data from the Planck/HFI instrument. The present work relates how this bias effect was understood and successfully corrected for. A very deep analysis of the spacecraft detectors, the cryogenic chain, and the digitization component has been performed, which required a specific methodology to gather data from the spacecraft before the end of the mission and its decommissioning
Jégou, Philippe. "Contribution à l'étude des problèmes de satisfaction de contraintes : algorithmes de propagation et de résolution : propagation de contraintes dans les réseaux dynamiques." Montpellier 2, 1991. http://www.theses.fr/1991MON20015.
Full textClarke, Richard William Barnes. "Modélisation et inversion de données cinématiques complexes en 3D." Pau, 1997. http://www.theses.fr/1997PAUU3010.
Full textGrimald, Sandrine. "Etude de l'émission et de la propagation du Continuum terrestre à partir des données des satellites Cluster." Phd thesis, Université d'Orléans, 2007. http://tel.archives-ouvertes.fr/tel-00143912.
Full textLe, Pape Cécile. "Contrôle de qualité des données répliquées dans un Cluster." Paris 6, 2005. http://www.theses.fr/2005PA066433.
Full textVanderbecken, Pierre J. Y. "Apport des infrasons pour l'assimilation de données dans un modèle global de prévision numérique du temps." Electronic Thesis or Diss., Toulouse 3, 2020. http://www.theses.fr/2020TOU30328.
Full textInfrasounds are acoustic waves between 0 and 20 Hz emitted by a wide variety of sources. Due to their low frequencies, vertical gradients of winds and temperature lead to the formation of waveguides in which they can propagate over thousands of kilometers with little attenuation. Since this type of propagation is intrinsically linked to the atmospheric circulation, these waves can be used as tracers. The general circulation in the stratosphere and the mesosphere, which forms the middle atmosphere, provides the most efficient acoustic waveguides. It is proposed here to use ground-based infrasound signals to provide new information on the circulation of the middle atmosphere. It can be used to improve the initialization of numerical weather prediction (NWP) models. For an observation to be assimilated, it is necessary to define an observation operator, able to simulate it from model predictions. The aim of this thesis is to examine how to assimilate infrasounds by designing a dedicated observation operator. After presenting the state of knowledge on atmospheric circulation and the principle of data assimilation, we examine the infrasound data of the international monitoring system. This system is maintained by the Comprehensive Nuclear Test Ban Treaty Organization (CTBTO). An observation operator compatible with the needs of assimilation can be designed from a propagation model by taking advantage of fast propagation methods and well-known natural sources such as volcanoes. Given the limitations associated with these methods and sources, it is difficult to design an observation operator allowing the direct assimilation of infrasound data. We propose then to solve the inverse problem by retrieving vertical profiles of winds and temperature consistent with the recorded infrasound signals. Firstly, we have highlighted the need to superimpose a disturbance onto the atmospheric profiles in order to simulate real acoustic signals using ray tracing or modal decomposition methods. Then, within the frame of a simplified atmosphere with two degrees of freedom and simulated signals, we examined the ability of local optimization methods to estimate the atmospheric disturbance minimizing the discrepancies between modelled and observed signals. The results of this study show the difficulty in obtaining an optimal disturbance without prior information on it. This led us to develop a Bayesian approach, taking as prior information an ensemble of analyzes and short-term forecasts of the Météo-France global NWP model. The differences between the simulation results from a ray tracing code and the infrasound measurements are used to compute the likelihood of each member of the ensemble. This method was assessed using infrasound signals emitted by Mount Etna eruptions during May 2016. We show that this method allows to select the most likely members of the ensemble, and thus to provide atmospheric profiles, in agreement with observed infrasounds. These profiles could then be considered as pseudo-observations in a data assimilation system
Books on the topic "Propagation des Données"
Advisory Group for Aerospace Research and Development. Sensor and Propagation Panel. Symposium. Multi-sensor systems and data fusion for telecommunications, remote sensing and radar =: Les systemes multi-senseurs et le fusionnement des donnees pour les telecommunications, la teledelection et les radars : papers presented at the Sensor and Propagation Panel Symposium held in Lisbon, Portugal, 29 September-2 October 1997. Neuilly sur Seine: Agard, 1998.
Find full textBook chapters on the topic "Propagation des Données"
C. ROCHOUX, Mélanie, Aurélien COSTES, Ronan PAUGAM, and Arnaud TROUVÉ. "Assimilation de données pour les incendies de végétation." In Inversion et assimilation de données de télédétection, 97–132. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9142.ch3.
Full textCEBEILLAC, Alexandre, and Éric DAUDÉ. "Mobilité quotidienne et diffusion des épidémies." In Mobilité quotidienne et santé, 7–47. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9109.ch1.
Full textLEBLOND, Cédric. "Méthodes « avancées » en vibro-acoustique des structures navales." In Interactions fluide-structure, 87–118. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9078.ch4.
Full textLAMBOT, Sébastien, Kaijun WU, Arthur SLUŸTERS, and Jean VANDERDONCKT. "Équation radar à ondes complètes pour la propagation des ondes dans les milieux multicouches et ses applications." In Radar à pénétration de sol, 133–71. ISTE Group, 2025. https://doi.org/10.51926/iste.9157.ch5.
Full textRIBEIRO DE OLIVEIRA, Josilene, and Rosilene Oliveira ROCHA. "Violences de genre et situation des femmes incarcérées en prison au Brésil, pendant la pandémie de Covid-19." In Les violences de genre et la pandémie Covid-19, 55–64. Editions des archives contemporaines, 2023. http://dx.doi.org/10.17184/eac.7019.
Full textMENZAN KOUAKOU, Rodolphe, René SAHI SALIA, and Georges GAULITHY KONAN. "Contribution des medias sociaux à la prevention et à la lutte contre les violences conjugales. S'informer par les réseaux sociaux en temps de crise en Côte d'Ivoire." In Les violences de genre et la pandémie Covid-19, 89–98. Editions des archives contemporaines, 2023. http://dx.doi.org/10.17184/eac.7023.
Full textDIOMANDE, Bourahima, and Aboubakar Djakaridja OUATTARA. "Le dispositif anti-COVID-19 de l’Université Alassane Ouattara au prisme des réalités du terrain." In Les écoles africaines à l’ère du COVID-19, 43–56. Editions des archives contemporaines, 2024. http://dx.doi.org/10.17184/eac.7919.
Full textConference papers on the topic "Propagation des Données"
Buss, O., C. De Saint Jean, E. Ivanov, C. Jouanne, and D. Lecarpentier. "Propagation d’incertitudes en déterministe et en Monte Carlo." In Données nucléaires : avancées et défis à relever. Les Ulis, France: EDP Sciences, 2014. http://dx.doi.org/10.1051/jtsfen/2014don04.
Full textReports on the topic "Propagation des Données"
Cissé, Amy, Thomas G. Poder, Jaunnathan Bilodeau, and Amélie Quesnel-Vallée. Analyse de la situation d’emploi, du conflit travail-famille et de l’évolution de la qualité de vie reliée à la santé pendant la pandémie de COVID-19 au Québec. CIRANO, November 2024. http://dx.doi.org/10.54932/qwne7668.
Full textHrynick, Tabitha, and Megan Schmidt-Sane. Note d’Orientation sur l’Engagement Communautaire Concernant la Riposte Contre la Flambée Epidémique de Choléra dans la Région Afrique de l’Est et Australe. Institute of Development Studies, May 2023. http://dx.doi.org/10.19088/sshap.2023.008.
Full textLamarque, Hugh. Considérations clés : Flambée épidémique de maladie à virus Marburg au Rwanda, octobre 2024. Institute of Development Studies, November 2024. http://dx.doi.org/10.19088/sshap.2024.057.
Full textDufresne, Yannick, David Dumouchel, and William Poirier. Fondements de l’acceptabilité sociale des applications de traçage en temps de pandémie : Technophobie? Crainte sanitaire? ou Idéologie démocratique? Observatoire international sur les impacts sociétaux de l'IA et du numérique, June 2021. http://dx.doi.org/10.61737/ssoc2889.
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