Literatura académica sobre el tema "Processus éolien"
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Artículos de revistas sobre el tema "Processus éolien"
Canel-Depitre, Béatrice. "Le processus de construction de l’inacceptabilité sociale d’un projet de production électrique éolien en Haute Saintonge". Annales des Mines - Gérer et comprendre N° 130, n.º 4 (2017): 15. http://dx.doi.org/10.3917/geco1.130.0015.
Texto completoYates, Stéphanie y Myriam Arbour. "Le rôle des maires dans l’acceptabilité sociale des projets d’infrastructure : tension entre arbitrage et promotion1". Articles 35, n.º 1 (24 de marzo de 2016): 73–101. http://dx.doi.org/10.7202/1035793ar.
Texto completoGrimault, Jimmy. "Spatialisation et territorialisation du grand éolien en France : le gigantisme contre l’utopie ?" Bulletin de l'Association de géographes français 97, n.º 4 (30 de julio de 2021): 529–46. http://dx.doi.org/10.4000/bagf.7559.
Texto completoRebbah, Redjem, Amar Bentounsi, Houcine Benalla y Hind Djeghloud. "Optimisation de la commande d’une génératrice à réluctance variable pour une application éolienne". Journal of Renewable Energies 13, n.º 3 (25 de octubre de 2023): 407–20. http://dx.doi.org/10.54966/jreen.v13i3.209.
Texto completoFaran Maiga, Oumarou. "L'érosion éolienne dans le Zarmaganda (Niger) / Wind erosion in Zarmaganda". Revue de géographie alpine 92, n.º 1 (2004): 71–82. http://dx.doi.org/10.3406/rga.2004.2279.
Texto completoDeschodt, Laurent. "Sédimentologie et datation des dépôts fluvio-éoliens du Pléniglaciaire Weichselien à Lille (vallée de la Deûle, bassin de l’Escaut, France)". Quaternaire, n.º 23/1 (1 de marzo de 2012): 117–27. http://dx.doi.org/10.4000/quaternaire.8513.
Texto completoAntoine, Pierre, Denis Didier Rousseau, Christine Hatté, Ludwig Zöller, Andréas Lang, Michel Fontugne y Olivier Moine. "Evènements éoliens rapides dans les Loess du Pléniglaciaire supérieur Weichselien : l'exemple de la séquence de Nussloch (vallée du Rhin-Allemagne)". Quaternaire 13, n.º 3 (2002): 199–208. http://dx.doi.org/10.3406/quate.2002.1712.
Texto completoWeisrock, André y Michel Fontugne. "Morphogenèse éolienne littorale au Pléistocene supérieur et à l'Holocène dans l'Oulja atlantique marocaine". Quaternaire 2, n.º 3 (1991): 164–75. http://dx.doi.org/10.3406/quate.1991.1965.
Texto completoGarneau, Michelle. "Analyses macrofossiles d’un dépot de tourbe dans la région de Hot Weather Creek, péninsule de Fosheim, île d’Ellesmere, Territoires du Nord-Ouest". Géographie physique et Quaternaire 46, n.º 3 (29 de noviembre de 2007): 285–94. http://dx.doi.org/10.7202/032915ar.
Texto completoTexier, Jean-Pierre y Marc Thomas. "Le site paléolithique de Chez-Pinaud 1 (Charente-Maritime, France) : lithostratigraphie, processus de formation, approche taphonomique". Paléo 33 (2023): 124–44. http://dx.doi.org/10.4000/1296n.
Texto completoTesis sobre el tema "Processus éolien"
Rioual, François. "Etude de quelques aspects du transport éolien : processus de saltation et formation des rides". Phd thesis, Rennes 1, 2002. https://tel.archives-ouvertes.fr/tel-00199032.
Texto completoPedreros, Rodrigo. "Quantification et modélisation du transport éolien au niveau des zones côtières : application au littoral girondin". Bordeaux 1, 2000. http://www.theses.fr/2000BOR10619.
Texto completoLamy, Antoine. "Processus éolien et son transport sédimentaire associé en condition de vent de terre sur le système dune-plage". Electronic Thesis or Diss., Perpignan, 2024. http://www.theses.fr/2024PERP0015.
Texto completoThis Research aims to characterize the aeolian processes on a beach-dune system under prevailing offshore winds. To achieve this, the site of Leucate-Plage has been chosen due to the Tramontane, an offshore wind blowing more than 70 % of thetime. This field site is composed of a small foredune on a microtidal area sometimes hit by intense marine storms. These characteristics make this site one of the representative coastal areas present on the Gulf of Lion. This research demonstrates, using observations and modelisations, that a small dune can nonetheless have significant effects on aeolian dynamics. This work highlights an area of wind separation and recirculation in the leeward region of the dune during perpendicular wind. However, this does not cause transport towards the dune foot because, regardless of the incident wind speeds, the threshold shear velocity for grain movement is never reached in this recirculation zone. the dune at Leucate-Plage is human-made, this cause longitudinal variations in its morphology due to different construction methods. These variations create variable disturbances in wind flow and aeolian transport. In some cases, with gentler dune slopes, the wind is not separated but only deflected and much less attenuated when passing over the dune, allowing sediment transport in the lee side. In all cases, the wind is accelerated approaching the dune crest, especially when the wind is perpendicular, reaching up to twice the speed of the incident wind. Aeolian sand transport depends on many control factors, this work focused on the beach grain size and histemporal variability, often neglected in studies. The results show that this parameter can have significant consequences on the observed and calculated transport rates. In an environment with wide variations in grain size over time, annual transport rates can differ by more than 75 times from those observed depending on the grain size applied to the transport formula. In the case of offshore winds, the distribution of wind speeds and aeolian sand transport fluxes is unequal across the beach profile, with an increase observed moving away from the dune. Thus, transport rates can easily exceed 100 kg/m/h at the berm. The consequence of this seaward aeolian transport can cause significant erosion of the beach, depending on wind speeds and beach's grain size state. This erosion can reach values greater than 50 cm on the berm and 20 cm on the beach in a few hours. This thesis highlights the impact of offshore winds on a microtidal beach and the influence of an artificial dune and its construction methods, on wind flow and aeolian sediment transport. It also warns about using an appropriate grain size for calculating aeolian transport rates in a heterogeneous and variable grain size environment
Ould, Ahmedou Dah. "Formation et migration des dunes de sable : : Etudes expérimentales des processus d'érosion, d'avalanches et du transport éolien". Rennes 1, 2005. http://www.theses.fr/2005REN1S034.
Texto completoVanhée, Stéphane. "Processus de transport éolien à l'interface plage macrotidale-dune bordière : le cas des plages à barres intertidales, Côte d'Opale, nord de la France". Littoral, 2002. http://www.theses.fr/2002DUNK0093.
Texto completoSeveral experiments aimed at elucidating the effects of ridge and runnel morphology on aeolian transport were carried out on macrotidal beaches on the Opal Coast. The results show that in spite of a potentially large wind fetch with onshore winds given the width of these beaches, the effective fetch is generally limited to the upper beach terrace and to the first ridge on the upper beach, and is especially segmented by the runnels which may act as efficient sand traps. The results also highlight highly variable trapping rates. The rates were commonly weak and this could be a limiting factor in terms of beach-dune sand transfers, especially in view of the fact that the dominant winds on the North Sea sites are essentially obliquely offshore. The short term topographic surveys and digital elevation models have highlighted the efficiency of dune management and rehabilitation schemes. Differential contour maps generated by these surveys bring out the stages of foredune accretion
Beladjine, Djaoued. "Étude expérimentale du processus de collision d'une bille sur un empilement granulaire : application au mécanisme de saltation dans le transport éolien". Rennes 1, 2007. http://www.theses.fr/2007REN1S036.
Texto completoSand grains transported by the desert wind move in successive jumps on a granular bed. During the impact, they can eject other grains. To study this process, we collided a single bead on a packing of identical grains. We reported the experiment for a broad range of incident speeds and impact angles. The results show that, although the incident bead dissipates less energy for grazing impacts, the number of ejected grains is smaller in this case. The mean values of the ejection speed and ejection angle are, to first order, insensitive to the kinematics characteristics of the incident bead. In addition, the total kinetic energy of ejected beads is directly proportional to the fraction of incident energy given
Jaafar, A. "Traitement de la mission et des variables environnementales et intégration au processus de conception systémique". Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2011. http://tel.archives-ouvertes.fr/tel-00646708.
Texto completoJaafar, Amine. "Traitement de la mission et des variables environnementales et intégration au processus de conception systémique". Thesis, Toulouse, INPT, 2011. http://www.theses.fr/2011INPT0070/document.
Texto completoThis work presents a methodological approach aiming at analyzing and processing mission profiles and more generally environmental variables (e.g. solar or wind energy potential, temperature, boundary conditions) in the context of system design. This process constitutes a key issue in order to ensure system effectiveness with regards to design constraints and objectives. In this thesis, we pay a particular attention on the use of compact profiles for environmental variables in the frame of system level integrated optimal design, which requires a wide number of system simulations. In a first part, we propose a clustering approach based on partition criteria with the aim of analyzing mission profiles. This phase can help designers to identify different system configurations in compliance with the corresponding clusters: it may guide suppliers towards “market segmentation” not only fulfilling economic constraints but also technical design objectives. The second stage of the study proposes a synthesis process of a compact profile which represents the corresponding data of the studied environmental variable. This compact profile is generated by combining parameters and number of elementary patterns (segment, sine or cardinal sine) with regards to design indicators. These latter are established with respect to the main objectives and constraints associated to the designed system. All pattern parameters are obtained by solving the corresponding inverse problem with evolutionary algorithms. Finally, this synthesis process is applied to two different case studies. The first consists in the simplification of wind data issued from measurements in two geographic sites of Guadeloupe and Tunisia. The second case deals with the reduction of a set of railway mission profiles relative to a hybrid locomotive devoted to shunting and switching missions. It is shown from those examples that our approach leads to a wide reduction of the profiles associated with environmental variables which allows a significant decrease of the computational time in the context of an integrated optimal design process
Bretel, Patrice. "Processus éoliens et morphodynamique dunaire sur les côtes bas-normandes (France)". Caen, 2003. http://www.theses.fr/2003CAEN2012.
Texto completoBezerra, Rufino Ferreira Paiva Eduardo. "Wind Velocity Estimation for Wind Farms". Electronic Thesis or Diss., Université Paris sciences et lettres, 2023. http://www.theses.fr/2023UPSLM046.
Texto completoThis thesis designs algorithms to estimate the wind speed and direction for wind turbines and wind farms.First, we propose data-based methods to estimate the Rotor Effective Wind Speed (REWS) for a single turbine without prior knowledge of certain physical parameters of the turbine that might be unknown to an operator.We provide two data-based methods, based respectively on Gaussian Process Regression (GPR) and on an combination of GPR with high-gain observers.Second, grounding on this REWS estimation at the local level of one turbine, we address the question of estimating the free-flow wind at the level of a wind farm.We start by focusing on wind speed estimation, for a given known wind direction. For a wind farm with a simple geometry, we prove that a local speed measurement disturbed by the presence of the turbines can be used to estimate the free-flow wind speed. We ground our estimation methodology on a simplified wake model, which consists of first-order hyperbolic partial differential equations, the transport speed of which is the free-flow wind speed. We propose to use an analytical solution of these equations, involving transport delays, to perform an estimate of the local measurement and to update the free-flow wind speed estimate. We formally prove the convergence of this estimate and numerically illustrate the efficiency of this method.Finally, we move to a more general setup where both the free-flow wind speed and direction are unknown. We propose to use a two-dimensional wake model and to rely on an optimization-based method. This identification problem reveals to be particularly challenging due to the appearance of transport delays, but we illustrate how to circumvent this issue by considering an average value of the free flow wind speed history. Simulation results obtained with the simulator FAST.Farm illustrate the interest of the proposed method
Libros sobre el tema "Processus éolien"
Nickling, W. G. (William George) y Geological Survey of Canada, eds. Sensitivity of eolian processes to climate change in Canada: Impact of global change on geological processes in Canada. Ottawa, Ont: Geological Survey of Canada, 1997.
Buscar texto completoAeolian Geomorphology: Binghamton Geomorphology Symposium 17. Taylor & Francis Group, 2020.
Buscar texto completoNickling, William G. Aeolian Geomorphology: Binghamton Geomorphology Symposium 17. Taylor & Francis Group, 2020.
Buscar texto completoNickling, William G. Aeolian Geomorphology (Binghamton Symposia in Geomorphology International Series). Unwin Hyman, 1987.
Buscar texto completoNickling, William G. Aeolian Geomorphology: Binghamton Geomorphology Symposium 17. Taylor & Francis Group, 2020.
Buscar texto completoNickling, William G. Aeolian Geomorphology (Binghamton Symposia in Geomorphology International Series). Unwin Hyman, 1987.
Buscar texto completoActas de conferencias sobre el tema "Processus éolien"
LAMY, Antoine, Thomas Andrew George SMYTH, Nicolas ROBIN y Patrick HESP. "Perturbation des processus et du transport éolien par une dune anthropique soumise à un vent de terre grâce à l’utilisation de modélisation par Computational Fluid Dynamics (CFD)". En Journées Nationales Génie Cotier - Genie Civil, 363–72. Editions Paralia, 2024. http://dx.doi.org/10.5150/jngcgc.2024.038.
Texto completoInformes sobre el tema "Processus éolien"
David, P. P. Processus Éoliens [Chapitre 9: Processus Géomorpholofiques au Canada]. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/131655.
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