Literatura académica sobre el tema "Formation de faisceaux hybrides"
Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros
Consulte las listas temáticas de artículos, libros, tesis, actas de conferencias y otras fuentes académicas sobre el tema "Formation de faisceaux hybrides".
Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.
También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.
Artículos de revistas sobre el tema "Formation de faisceaux hybrides"
Ferhani, Fatma-Fatiha. "Dispositifs hybrides et formation continue des enseignants en Algérie". Revue internationale d'éducation de Sèvres, n.º 89 (1 de abril de 2022): 16–19. http://dx.doi.org/10.4000/ries.11928.
Texto completoASTRUC, A., S. RAFI y F. CHEVALIER. "Une formation pilote hybride sur l'analyse des données quantitatives. Avantages et points de vigilance". EXERCER 32, n.º 174 (1 de junio de 2021): 284–86. http://dx.doi.org/10.56746/exercer.2021.174.284.
Texto completoBurton, R. "Vers une typologie des dispositifs hybrides de formation en enseignement supérieur". Distances et savoirs 9, n.º 1 (30 de marzo de 2011): 69–96. http://dx.doi.org/10.3166/ds.9.69-96.
Texto completoLamy-Joswiak, Anne-Cécile. "Formation hybride en langues : articuler présentiel et distanciel". Journal for Foreign Languages 13, n.º 1 (27 de diciembre de 2021): 597–98. http://dx.doi.org/10.4312/vestnik.13.597-598.
Texto completoMeyer, Florian, Béatrice Verquin Savarieau, Matthieu Petit y Caroline Bourque. "Le numérique pour une hybridation de qualité". Médiations et médiatisations, n.º 4 (2 de diciembre de 2020): 3–8. http://dx.doi.org/10.52358/mm.vi4.180.
Texto completoMazur, V. A. y N. V. Shevchenko. "Formation of the leaf surface of corn hybrides depending on technological growing methods". Bìoresursi ì prirodokoristuvannâ 10, n.º 1-2 (2018): 108–14. http://dx.doi.org/10.31548/bio2018.01.014.
Texto completoMbadjoin, T. N. y Alain Jaillet. "Effet structurant des forums numériques sur la qualité d’apprentissage dans les dispositifs hybrides de formation d’ingénieurs". International Journal of Technologies in Higher Education 14, n.º 3 (2017): 62–79. http://dx.doi.org/10.18162/ritpu-2017-v14n3-05.
Texto completoDesjardins, Guillaume, Gustavo Adolfo Angulo Mendoza y Stéphanie Turgeon. "Occasions et défis de l’utilisation de la microcertification numérique au 21e siècle : présentation d’un modèle conceptuel pour les gestionnaires". Ad machina, n.º 5 (25 de febrero de 2022): 161–84. http://dx.doi.org/10.1522/radm.no5.1419.
Texto completoClouse, Fabien y Sébastien Ponnou. "Recherches hybrides en travail social?: analyse des productions scientifiques des pôles recherche, étude, formation en action sociale (PREFAS)". Empan 116, n.º 4 (2019): 118. http://dx.doi.org/10.3917/empa.116.0118.
Texto completoMarkaki-Lothe, Vasiliki, Erica de Vries y Kristine Lund. "Quelles ressources interactionnelles pour la conception de jeux épistémiques numériques?" SHS Web of Conferences 52 (2018): 01001. http://dx.doi.org/10.1051/shsconf/20185201001.
Texto completoTesis sobre el tema "Formation de faisceaux hybrides"
Milbrandt, Jorick. "Études de nouvelles architectures d’antennes hybrides reconfigurables". Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0121.
Texto completoThe works presented in this thesis focus on the study of reduced BFN reconfigurableantennas (ARFFR). The concept of ARFFR generalizes the works of Harrington onelectronically steerable parasitic array radiator to regular arrays composed by excited elementsand parasitic ones. This approach aims to simplify the BFN of these antennas in order todemocratize competitive reconfigurable antenna arrays. Thanks to the use of reactive loadsconnected to parasitic elements, controls are maintained to manage both beam forming andactive matching. This thesis aims to assess the performances of the ARFFR and to developantenna architectures which permit to attain complex functions. The scope of application ofARFFR is defined and a design methodology is proposed. This work details the principle ofARFFR concept and analyses the potentialities of a Ku-band ARFFR. The digital approachused to design ARFFR is validated thanks to a demonstrator. Finally, the potentialities of thisconcept are refined by the study of orthogonal bipolarization
Oueslati, Aymen. "Nouveau concept simplifié d’antennes reconfigurables utilisant les couplages interéléments : Mise en œuvre d’un réseau hybride". Thesis, Limoges, 2015. http://www.theses.fr/2015LIMO0136/document.
Texto completoThe work of this thesis aims to investigate a new concept of reconfigurable antenna allowing a good trade-off between performances, complexity and cost. This concept is called ‘hybrid’ because it is based on the capabilities of thinned arrays and parasitic element antennas. It is an alternative to classical antenna arrays and their complexity. The proposed concept has a modular architecture, and a good versatility for reconfigurable beams. The main advantage of this hybrid antenna is the simplicity of its beam formation network (BFN) which requires only a few number of excited elements. The antenna uses parasitic elements to manage the effects of couplings between the electromagnetic access. The problematic of active VSWR is also solved at the antenna level, avoiding the use of additional components in the BFN. This work details the principle of the reconfigurable hybrid antenna concept. The potentialities are evaluated. The elements required to realize a proof of concept are then defined, using a dedicated experimental setup. A prototype is manufactured and the performances have been checked to validate this innovative concept
Kurisummoottil, Thomas Christo. "Sparse Bayesian learning, beamforming techniques and asymptotic analysis for massive MIMO". Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS231.
Texto completoMultiple antennas at the base station side can be used to enhance the spectral efficiency and energy efficiency of the next generation wireless technologies. Indeed, massive multi-input multi-output (MIMO) is seen as one promising technology to bring the aforementioned benefits for fifth generation wireless standard, commonly known as 5G New Radio (5G NR). In this monograph, we will explore a wide range of potential topics in multi-userMIMO (MU-MIMO) relevant to 5G NR,• Sum rate maximizing beamforming (BF) design and robustness to partial channel stateinformation at the transmitter (CSIT)• Asymptotic analysis of the various BF techniques in massive MIMO and• Bayesian channel estimation methods using sparse Bayesian learning.One of the potential techniques proposed in the literature to circumvent the hardware complexity and power consumption in massive MIMO is hybrid beamforming. We propose a globally optimal analog phasor design using the technique of deterministic annealing, which won us the best student paper award. Further, in order to analyze the large system behaviour of the massive MIMO systems, we utilized techniques from random matrix theory and obtained simplified sum rate expressions. Finally, we also looked at Bayesian sparse signal recovery problem using the technique called sparse Bayesian learning (SBL). We proposed low complexity SBL algorithms using a combination of approximate inference techniques such as belief propagation (BP), expectation propagation and mean field (MF) variational Bayes. We proposed an optimal partitioning of the different parameters (in the factor graph) into either MF or BP nodes based on Fisher information matrix analysis
Meghdadi, Hamid. "Formation de faisceaux coopératifs pour transmissions multiutilisateurs par relais". Limoges, 2011. https://aurore.unilim.fr/theses/nxfile/default/6bc3bf02-a1af-45ee-bf57-bee7da961fd7/blobholder:0/2011LIMO4041.pdf.
Texto completoThe demand for high speed reliable communication systems will never stop increasing. Many challenges face researchers trying to provide such systems and schemes. Cooperative networks have been successfully used to enhance the performance of telecommunication systems. Among different cooperative strategies, distributed cooperative relaying have shown to be a promising scheme. This dissertation addresses the problem of optimizing the precoding vectors in order to improve the system performance of multi-user multi-relay cooperative networks. Precoding vectors are used to cancel out the multiple access interference, maximize the signal to noise ratio at the destination, and optimize the power allocation at relaying stations
Roy, Bruno. "Formation de faisceaux laser avec moment angulaire orbital : fabrication de lames de phase en spirale réflectrices". Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/27771/27771.pdf.
Texto completoBlanc, Stéphane. "Architectures optiquespour la formation de faisceaux multiples à la réception : applications aux antennes radar". Grenoble INPG, 2004. http://www.theses.fr/2004INPG0101.
Texto completoThe evolution of radar systems as well as telecommunication satellites induces the need of simultaneous multibeams for the receive mode. In this thesis we propose two new optical beamforming architectures for the receive mode in network antennas. The former is based on the fiber chromatic dispersion, whereas the latter is an optical coherent architecture based on an optical dual-frequency source. These architectures were firstly analyzed theoretically and secondly their performances were measured. Both are based on two technological blocks that have been studied too: the optical summation and dual frequency optical source locked on a local oscillator. The dynamic behavior of the optical summation was modeled and various technological solutions based respectively on a coupler, a multiplexer or a fiber summation was presented. The WDM channel influence and the interference between optical carriers were analyzed theoretically and experimentally. The optical summation models were applied to summation through a WDM and the theory is in agreement with the measure. As in the case of microwave summation, the optical summation allows a gain on the dynamic range. Then we present the theory allowing to conceive a dual frequency laser locked on an electric signal. The results are very promising, indeed thanks to the use of two lock loops, a stability of about an hour was observed
El, Metennani Faiza. "Analyse des approches d'apprentissage des étudiants universitaires, dans le contexte des formation hybrides". Thesis, CY Cergy Paris Université, 2020. http://www.theses.fr/2020CYUN1008.
Texto completoA learner's behavior can be influenced by factors related to the environment, or by factors related to his own personal characteristics, Jézégou, (2014: 273). Our research work started from this research line. It is in this sense that we will try to understand from the perspective of the effects, the relationship between the hybrid device, the learning approaches and the personal characteristics of the students (gender and the feeling of personal effectiveness).Our research is experimental research, which makes it possible to determine the question of causality: if a student proceeds by such or such an approach, this is explained by factors related to the device, or else by factors related to his personal characteristicsWe were able to conduct our study in a university context in two different countries, Algeria and Cameroon. In the Algerian context, we were able to observe the progress of a hybrid course, supported by a teacher with 37 students. To better verify the notion of the effect of a hybrid device, we planned to experiment with this same hybrid course with the same teacher, but completely at distance (remotely), with another group of students (13 students). In the Cameroonian context, we observed the unfolding of a hybrid course, taught by a teacher, with 58 students from three promotions.We collected data on the variables, either by video recordings, or by retrieving data from the Moodle platform, or by questionnaire and interviews. The method of analysis is both a quantitative and a qualitative method.The results of our research reveal that the students proceeded much more by an in-depth approach. We concluded that the support of the teacher and the techno pedagogical environment have an effect on the learning approaches of the students.The results of our research also reveal that students who had a strong or weak sense of self-efficiency all proceeded through deep treatment approaches. So the feeling of self-efficiency does not have an effect on the choice of this or that learning approach. The results also indicate that there is no relationship between the biological characteristics of students (gender) and their learning approaches
Ridikas, D. "Optimisation de combinaisons de faisceau et de cible pour les systèmes de réacteurs hybrides et pour la production de faisceaux radioactifs par fission". Phd thesis, Université de Caen, 1999. http://tel.archives-ouvertes.fr/tel-00719971.
Texto completoRidikas, Danas. "Optimisation de combinaisons de faisceau et de cible pour les systemes de reacteurs hybrides et pour la production de faisceaux radioactifs par fission". Caen, 1999. https://tel.archives-ouvertes.fr/tel-00719971.
Texto completoEl, Osta Racha. "De nouveaux solides hybrides poreux : synthèse, caractérisation, mécanismes de formation et séparation en phase liquide". Versailles-St Quentin en Yvelines, 2012. http://www.theses.fr/2012VERS0028.
Texto completoDuring the last decade, research on the synthesis of MOF (Metal-Organic Framework) porous materials has been the subject of many studies due to potential applications of the materials. These crystalline compounds present three-dimensional atomic structures constructed from inorganic motifs linked by organic ligands (polycarboxylic acid) forming cavities with different geometries (cages, tunnels, etc. . . ) with sizes up to 30-40 Å and characterized by high specific surface areas (500-4000 m2. G-1). The prospect of new applications in the area of separation, recovery and purification of organic molecules in liquid phase using a porous inorganic-organic hybrid was a challenge to be addressed in the context of this thesis. The innovative and very promising properties of MIL-53 (Fe) led to a new method for the separation of BTEX (benzene, toluene, ethylbenzene and the three isomers of xylene) by HPLC chromatography. In addition, the solvothermal synthesis, crystal structure resolution and physicochemical characterizations of various lightweight solids based on alkali metals (lithium and sodium) and polycarboxylic acids have been reported, as well as the study of the mechanisms of formation of some MOFs by in situ X-ray diffraction (synchrotron radiation). Using a new kinetic model it has proved possible to distinguish the two main steps of the phenomenon of crystallization: nucleation and growth
Capítulos de libros sobre el tema "Formation de faisceaux hybrides"
Meyer, Florian y Éric Sanchez. "Chapitre 8. Vers des dispositifs de formation hybrides en enseignement". En Apprendre à enseigner, 125–39. Presses Universitaires de France, 2016. http://dx.doi.org/10.3917/puf.borer.2016.01.0125.
Texto completoPAGE, Violaine. "L’accompagnement technopédagogique dans la conception de cours hybrides". En État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 65–82. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.2307/j.ctv18b5crp.11.
Texto completoPage, Violaine. "L’accompagnement technopédagogique dans la conception de cours hybrides". En État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 65–82. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.1515/9782760553224-009.
Texto completoBertrand, Claude. "Chapitre 12. Construire des dispositifs hybrides pour la formation continue d'enseignants". En Pédagogies en développement, 193–203. De Boeck Supérieur, 2010. http://dx.doi.org/10.3917/dbu.baill.2010.01.0193.
Texto completoVIENS, Catherine y Marko SAVOR. "L’accompagnement des enseignants dans la mise en place de dispositifs de formation hybrides en enseignement supérieur". En État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 131–44. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.2307/j.ctv18b5crp.15.
Texto completoViens, Catherine y Marko Savor. "L’accompagnement des enseignants dans la mise en place de dispositifs de formation hybrides en enseignement supérieur". En État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 131–44. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.1515/9782760553224-013.
Texto completoFRISCH, Muriel. "Hybrider sans déshumaniser dans les métiers de l’humain et les recherches en sciences de l’éducation et de la formation pendant le confinement". En Les épidémies au prisme des SHS, 239–50. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.6010.
Texto completoGRENON, Vincent. "Une recension nord-américaine des conditions à mettre en place pour favoriser le développement de cours hybrides dans un programme de formation en enseignement supérieur". En État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 2, 11–26. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.2307/j.ctv18b5czs.8.
Texto completoGrenon, Vincent. "Une recension nord-américaine des conditions à mettre en place pour favoriser le développement de cours hybrides dans un programme de formation en enseignement supérieur". En État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 2, 11–26. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.1515/9782760553804-006.
Texto completoReiche, Ina, Aurélien Gourrier y Jolanda Spadavecchia. "De l’analyse des ivoires archéologiques dorés à la synthèse archéo-inspirée des nanoparticules hybrides pour les applications biomédicales". En Regards croisés: quand les sciences archéologiques rencontrent l'innovation, 123–38. Editions des archives contemporaines, 2017. http://dx.doi.org/10.17184/eac.3793.
Texto completo