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Статті в журналах з теми "Formation hybride de faisceaux":
Kiening, Christian. "Hybride Zeiten." Beiträge zur Geschichte der deutschen Sprache und Literatur 140, no. 2 (June 1, 2018): 194–231. http://dx.doi.org/10.1515/bgsl-2018-0015.
Tali, Fatiha, and Jean-François Marcel. "Formation hybride et apprentissages professionnels des enseignants spécialisés." Recherche & formation, no. 93 (April 15, 2020): 33–50. http://dx.doi.org/10.4000/rechercheformation.5993.
Lamy-Joswiak, Anne-Cécile. "Formation hybride en langues : articuler présentiel et distanciel." Journal for Foreign Languages 13, no. 1 (December 27, 2021): 597–98. http://dx.doi.org/10.4312/vestnik.13.597-598.
DIAO, Ousmane. "Les constructions de type agroécologie : une formation hybride ?" Afrosciences Antiquity Sunu-Xalaat 1, no. 3 (December 1, 2021): 237–50. http://dx.doi.org/10.61585/pud-asasx-v1n301.
Lipatov, Yu S., V. F. Rosovitskii, T. T. Alekseyeva, and N. V. Babkina. "Kinetics of formation and viscoelastic properties of hybride binders." Polymer Science U.S.S.R. 31, no. 7 (January 1989): 1637–41. http://dx.doi.org/10.1016/0032-3950(89)90511-x.
Zeitoun, Samar, and Rima Malek. "Dispositif Hybride De Formation Universitaire Des Enseignants : Etude De Cas." European Scientific Journal, ESJ 14, no. 28 (October 31, 2018): 15. http://dx.doi.org/10.19044/esj.2018.v14n28p15.
Gobeil-Proulx, Julien. "La perspective étudiante sur la formation comodale, ou hybride flexible." International Journal of Technologies in Higher Education 16, no. 1 (2019): 56. http://dx.doi.org/10.18162/ritpu-2019-v16n1-04.
Mohib, Najoua, Stéphane Guillon, and Chenchen Zheng. "Retour d’expérience sur une pratique d’hybridation." Médiations et médiatisations, no. 4 (December 2, 2020): 78–88. http://dx.doi.org/10.52358/mm.vi4.155.
Popov, L. D., N. L. Zaichenko, V. A. Barachevskii, O. I. Kobeleva, T. M. Valova, L. S. Kol’tsova, A. I. Shienok, S. I. Levchenkov, and V. A. Kogan. "Studies of complex formation of photochromic hybride spirooxazine with metal ions." Russian Journal of General Chemistry 83, no. 12 (December 2013): 2309–13. http://dx.doi.org/10.1134/s1070363213120141.
Verquin-Savarieau, Béatrice. "Formation à distance et activité du stagiaire de la formation professionnelle continue." Phronesis 3, no. 1-2 (April 17, 2014): 49–57. http://dx.doi.org/10.7202/1024588ar.
Дисертації з теми "Formation hybride de faisceaux":
Paquien, Lucien. "Transmetteur intégré bidirectionnel dédié à la 5G mmW dans un système de formation de faisceaux hybride et numérique." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0064.
The increasing demand for data rate for mobile telecommunications has led to the use of beamforming systems in order to notably limit the impact of free space propagation losses (FSPL) over the link budget, due to the elevation of the operating frequency. In order to be able to direct a directional beam concentrating the majority of the gain of the antenna array towards a given user, a large number of integrated radio frequency front-ends (RFFE) is necessary.Conventionally, 5G RFFEs generally consist of a low noise amplifier (LNA), and a power amplifier (PA). The latter are physically dissociated, and are alternatively addressed using a commuted element, in order to operate in time division duplexing (TDD). In this case, not only does the switched element involve losses and a significant silicon surface requirement, but also the RFFEs are only used half the time (due to TDD). Also, this large silicon area required must then be multiplied by the number of elements that constitutes the beamforming system. In addition, the spacing between each antenna constituting the antenna array being proportional to the wavelength, the latter could therefore reach higher operating frequencies if the RFFEs are miniaturized. In this work, a solution allowing the elimination of the need for a commuted element, as well as the merging of the LNA and PA is proposed, inducing a strong reduction in the silicon surface area required for the same operation that conventional architectures, using the GF 22nm CMOS FD-SOI technology. Although the design of millimeter functions (mmW) will be discussed, the frequency conversion aspect as well as the study of baseband functions will also be covered, including the design of a RF passive mixer, two reconfigurable second- and fourth-order active-RC low-pass filters, a variable gain amplifier (VGA), a 50Ω analog buffer, a double pole double throw (DPDT) switch, as well as a generation chain of quadrature signals, done from the combination of a hybrid coupler (HCPLR), and an external off-chip local oscillator (LO). The complete system will be simulated to demonstrate the relevancy of these structures regarding performances and required silicon surface, and axis for improvement will also be listed
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.
The 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
Letailleur, Lucas. "Éléments d'architecture d'émetteur linéarisé en technologie GaN pour des applications 5G millimétrique." Electronic Thesis or Diss., Université Gustave Eiffel, 2023. http://www.theses.fr/2023UEFL2073.
This thesis focuses on architectures and circuits for 5G FR2-1 communication systems. These systems operate in millimeter waves and use massive Multiple Input Multiple Output (MIMO) techniques. A gallium nitride (GaN) power amplifier (PA) from Macom is characterized and modelled. The results show that the PA do not meet the requierements of the 5G FR2-1 standard. A digital predistorsion (DPD) and an analog predistortion (APD) are therefore investigated and compared. DPD offers better linearization performance than the APD, but cannot linearize bandwiths grater than 100 MHz. The APD, on the other hand, allows to linearized a signal with a bandwidth up to 400 MHz on the n258 frequency band, and can be co-integrated with the PA. Both linearization techniques enable the amplifier to meet the requirements of 5G FR2-1 standard. The use of massive MIMO suggests that conventional architectures need to be reviewed. Consequently, a new approach for sizing the critical elements of the emission architectures is proposed. The main objective is to find the most suitable trade-off between the emitted power, linearity and the consumption of the overall architecture. For beamforming, a Butler matrix, using the same substrate as the power amplifier, is designed, and a new architecture is investigate. The architecture uses a co-design of a single power amplifier, a switch and a Butler matrix network, and enables 32 radiating elements to be fed. Finally, a comparative analysis of low-noise amplifiers based on GaN and gallium arsenide (GaAs) is carried out and a figure of merit is proposed. This study shows that it is possible to use the same technology for all front-end elements
Milbrandt, Jorick. "Études de nouvelles architectures d’antennes hybrides reconfigurables." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0121.
The 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
Jedrkiewicz-Owczarek, Floriane. "La formation hybride : entre conception et usage." Thesis, Paris 1, 2022. http://www.theses.fr/2022PA01E012.
The concept of hybrid training, combining activities in presence and distance, most often supported by a digital platform, before 2020 was a niche solution, little recognized. It was forcibly democratized with the covid-19 pandemic, even forcing the emergence of a new form of hybridization where the two modalities merge. The first definition of hybrid training appeared in 1995, written by Didier Valdès in his thesis for Paris 2 Panthéon Assas. He pointed out a certain number of criteria essential to the design of such training. However, the historiography concerning the study of these, from a erspective of definition, evaluation and design, was quickly turned upside down by the emergence of web 2.0. The design criteria adopted became more and more numerous and technical, the authors interviewing only a part of the actors (teachers or students), without a global vision and without taking into account their real activity. This approach, not integrating the activity of their operators, leads to complex hybrid training courses to be followed both for students and teachers, who may even be resistant to Information and Communication Technologies (ICTs). ) employees, or even to training in general. We are therefore looking to observe a hybrid training taking into account the activity of the operators, in order to deduce design tracks more in line with it. We employ an ethnocentric methodology, based on the theoretical framework of the activity, with an associated method - in particular the notions of prescribed and real. We thus seek to go beyond the usual dichotomies with machine / without machine, and presence / distance. We refer particularly to the activity theory developed by Yrjö Engeström, and to the instrumental theory of Pierre Rabardel. We observe a hybrid module of initiation to information and Pix certification within a university course More specifically, we have retained for the analysis a chapter of the course comprising a 1h30 face-to-face session and work to be done remotely. All the data available over this observation period is used, i.e. a heterogeneous set including open observations in class, video recordings, interviews carried out with users and designers, questionnaire for students, collection of emails from the teacher, data generated through the IT platform, and presence on student workspaces and exchanges such as Facebook and Google Drive. These data are combined in quantitative and qualitative ways, and analyzed through the production of detailed chronologies, Engeström contradiction tables, and a revised version of Gaëtan Bourmaud's Method of Failures and Substitutions of Resources (MDSR). We highlight a clear gap between prescribed and actual training (that is to say between training designed and in situ), resulting from a design in use carried out by the actors - teachers and students. This implies paradigm shifts, particularly with regard to student autonomy, the objective of the training which disrupts the position of the teacher. This conception in use is the result of a collective work of the operators (teacher and students), practically leading to a redesign of the training according to the needs actually felt. The design of a hybrid training in accordance with this activity would thus suppose to use the distance for what it is, in order to facilitate the creation of a community of university learning
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.
The 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
Sanojca, Elzbieta. "Les compétences collaboratives et leur développement en formation d’adultes : le cas d’une formation hybride." Thesis, Rennes 2, 2018. http://www.theses.fr/2018REN20001/document.
The competences to cooperate/collaborate are amongst the first to be developed in many educational frameworks. Within digitized societies, they promise efficiency, innovation, and well-being at work. However, these competences are not put forward in profesionnal organisations, and they are lacking from adult training courses.Based on this observation, this thesis aims at identifying the competences to be developed to work more easily with others. Bringing light on the abilities to act, convienently called “collaborative competences”, and on the way which they can be developed through training are the objects of this study.Thoroughly analysing the context of a hybrid training is carried out based on the study of the profesionnal trainingcourse “Animacoop: animating a collaborative project” which concerned 200 interns from 2010 to 2014. In this study, collaborative competences are analysed in link with profesionnal experiences and collaborative projects.Falling within an empirical approach, the research methodology connects a few data collecting tools (questionaires, interviews, observations) and on a conceptual level mobilises the Activity Theory and the notion of Training System .This research offers a model of key competences to lead a collaborative project. It analyzes the training system as a strong internally coherent ecosystem, open to development, prone to creativity, which favors collaborate competences development
Darjo, Valerie <1977>. "Formation hybride et cooperation universitaire nord-sud pour le developpement." Doctoral thesis, Università Ca' Foscari Venezia, 2014. http://hdl.handle.net/10579/6534.
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.
Forero, Romero Jaime Ernesto. "Predictabilité, galaxies infrarouges et lentilles gravitationnelles : applications de l'approche hybride." Lyon, École normale supérieure (sciences), 2007. http://www.theses.fr/2007ENSL0427.
Книги з теми "Formation hybride de faisceaux":
Elke Nissen. Formation hybride en langues. Didier FLE, 2019. http://dx.doi.org/10.14375/np.9782278094011.
Частини книг з теми "Formation hybride de faisceaux":
Gremion, Christophe, and André Levionnois. "V- Les temporalités vécues dans une formation hybride." In L’archipel des temps de la formation, 147–61. Champ social, 2021. http://dx.doi.org/10.3917/chaso.mauba.2021.01.0147.
Kenfack, Jean Rodrigue, and Jean-Marc Nolla. "L’autoévaluation dans un cours de philosophie offert en mode hybride." In Autoévaluation en formation à distance, 31–50. Presses de l'Université du Québec, 2022. http://dx.doi.org/10.1515/9782760557178-007.
NDIAYE, Ndeye MASSATA, and Abdou LAHATE CISSÉ. "La formation hybride face aux défis de l’assurance qualité." In État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 113–30. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.2307/j.ctv18b5crp.14.
Ndiaye, Ndeye Massata, and Abdou Lahate Cissé. "La formation hybride face aux défis de l’assurance qualité." In État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 113–29. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.1515/9782760553224-012.
GRAVELLE, France. "La gestion de la transformation de son enseignement en format mixte/hybride." In Formation et apprentissage en ligne, 155–66. Presses de l'Université du Québec, 2019. http://dx.doi.org/10.2307/j.ctvggx3dp.17.
Gravelle, France. "La gestion de la transformation de son enseignement en format mixte/hybride." In Formation et apprentissage en ligne, 155–66. Presses de l'Université du Québec, 2019. http://dx.doi.org/10.1515/9782760550889-015.
Tali, Fatiha, and Jean François Marcel. "Chapitre 4. Élaborer un dispositif hybride de formation dans une visée d’alternance intégrative." In Alternance intégrative et formation des enseignants, 81–101. Presses Universitaires de Bordeaux, 2019. http://dx.doi.org/10.4000/books.pub.46510.
ALFIERI, Olivier. "Université de Hearst, un modèle d’apprentissage hybride en ligne pour développer des compétences." In Pratiques et innovations à l'ère du numérique en formation à distance, 185–98. Presses de l'Université du Québec, 2019. http://dx.doi.org/10.2307/j.ctvq4bz91.17.
GROLEAU, Audrey. "Un cours de didactique hybride qui s’inspire de la conception universelle de l’apprentissage." In État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 83–98. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.2307/j.ctv18b5crp.12.
Groleau, Audrey. "Un cours de didactique hybride qui s’inspire de la conception universelle de l’apprentissage." In État de situation sur l'hybridité de la formation à distance en contexte postsecondaire, tome 1, 83–98. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.1515/9782760553224-010.