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Academic literature on the topic 'Impulsion de courant élevée'
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Journal articles on the topic "Impulsion de courant élevée"
Bauville, G., A. Delmas, and N. Haddad. "Etude d'un conjoncteur-disjoncteur à vide pour impulsion de courant intense." Revue de Physique Appliquée 25, no. 2 (1990): 199–207. http://dx.doi.org/10.1051/rphysap:01990002502019900.
Full textDelmas, A., A. Dongfack, and C. Rioux. "Etude du réisolement d'un disjoncteur à vide pour impulsion de courant intense haute fréquence." Revue de Physique Appliquée 22, no. 8 (1987): 761–65. http://dx.doi.org/10.1051/rphysap:01987002208076100.
Full textKober, Marc. "voie du goût." ALTERNATIVE FRANCOPHONE 2, no. 9 (April 13, 2021): 56–71. http://dx.doi.org/10.29173/af29422.
Full textFayolle, Jacky, and Françoise Milewski. "L'Europe crée et exporte sa monnaie." Revue de l'OFCE 59, no. 4 (November 1, 1996): 5–100. http://dx.doi.org/10.3917/reof.p1996.59n1.0005.
Full textWerner, Michael. "Proto-Industrialisation et Alltagsgeschichte." Annales. Histoire, Sciences Sociales 50, no. 4 (August 1995): 719–23. http://dx.doi.org/10.3406/ahess.1995.279397.
Full textLamy, S., E. Vacher, B. Hennart, P. Levy, and L. Jehel. "Étude de soins courants sur la population suicidante prise en charge au CHU de Martinique : résultats préliminaires." European Psychiatry 29, S3 (November 2014): 623–24. http://dx.doi.org/10.1016/j.eurpsy.2014.09.114.
Full textMcguire, Gregory. "The scientific study of "la morale" at the beginnings of modern social psychology in France/[l'étude scientifique de la morale aux origines de la psychologie sociale moderne en france]." Sociétés contemporaines 13, no. 1 (January 1, 1993): 155–65. http://dx.doi.org/10.3917/soco.p1993.13n1.0155.
Full textBALANDRAUD, Nathan, Claire MOSNIER, Luc DELABY, François DUBIEF, Jean-Philippe GORON, Bruno MARTIN, Dominique POMIES, and Anaël CASSARD. "Holstein ou Montbéliarde : des différences phénotypiques aux conséquences économiques à l’échelle de l’exploitation." INRA Productions Animales 31, no. 4 (February 10, 2019): 337–52. http://dx.doi.org/10.20870/productions-animales.2018.31.4.2394.
Full textRAMANANDRAIBE, Tanteliniaina Mbolanirina, Pierre RAKOTOMAMONJY, Guy Joël ROBISONARISON, and Edouard Ravalison ANDRIANARISON. "Amélioration Des Qualités Mécaniques D’une Brique De Terre Comprimée Stabilisée Au Ciment Par Trempe De Consolidation Au Silicate De Soude." International Journal of Progressive Sciences and Technologies 38, no. 1 (April 30, 2023): 388. http://dx.doi.org/10.52155/ijpsat.v38.1.5195.
Full textDiallo, FBA, A. Yansane, A. Sow, MS Barry, M. Keita, and AF Tchicaya. "Étude de l’impact du télétravail sur les travailleurs d’une entreprise de télécommunation en période de pandémie de la covid-19 en république de Guinée." Journal Africain des Cas Cliniques et Revues 8, no. 3 (September 30, 2024): 341–45. http://dx.doi.org/10.70065/24ja83.004l023009.
Full textDissertations / Theses on the topic "Impulsion de courant élevée"
Shahriari, Ejlal. "Commutateurs à semi-conducteurs rapides et à courant élevé pour les applications de puissance pulsée." Electronic Thesis or Diss., Pau, 2024. https://theses.hal.science/tel-04818494.
Full textMicro-second range high-current pulses (100s kA) are applied to generate megagauss-range magnetic fields. This high pulsed power technology has been employed in inertial fusion research, X-pinch, and high-energy-density physics. Moreover, a number of industrial applications such as magnetic pulse welding and rock fracturing require high average power, repeatability, and a reliable high-current pulse generator with a long lifespan. Hence, a fast solid-state switch development operating in the range of several hundred kA is of considerable importance.A fast high-current switch is one of the most complex components in a pulsed power generator. Historically, only gas-filled switches could operate under such extreme conditions. However, gas-filled switches have several well-known disadvantages, including low pulse repetition frequency, short lifetimes, and instability in triggering. They are also expensive to use, often requiring gas flow systems, costly gases, and recirculating chambers of gas for repetitive operation. These disadvantages have hindered the widespread adoption of pulsed power technologies.Recent advancements in semiconductor physics and technology have introduced solid-state switches into the pulsed power domain. In particular, silicon high-voltage structures triggered in impact-ionization wave mode present a promising solution for fast high-current solid-state switches (10s-100s kA and 10s kA/μs).The main goal of this thesis is to experimentally demonstrate the capability of high-voltage thyristors to switch fast-high current pulses. to accomplish this goal, two major axes of study are defined as the experimental and theoretical studies. In the experimental work, the main focus is determined based on a key limitation highlighted in the literature, i.e., the cross-sectional area of the thyristor. To eliminate this limitation several solutions have been investigated in this thesis including (i) triggering the largest commercially available thyristor, 100 mm wafer diameter with 5.2 kV static voltage breakdown. (ii) Parallel triggering of an assembly of two and four high-voltage thyristors. (iii) Series-parallel configuration in order to further increase blocking voltage and current capability of the switch simultaneously. In terms of theoretical study, the numerical simulation is conducted to shed light on the avalanche breakdown phenomena in impact-ionization switching mode
Hamrita, Hassen. "Réponse en courant des détecteurs silicium aux particules chargées et aux ions lourds." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00010145.
Full textFayolle, Gérard. "Conceptions et applications de circuits à mémoire de courant basse tension." Grenoble 1, 1998. http://www.theses.fr/1998GRE10151.
Full textLott, Christophe. "Filtrage actif parallèle des harmoniques de courant sur des réseaux industriels : étude théorique et réalisation d'une maquette à GTO." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL116N.
Full textCaillier, Bruno. "Diagnostics et modélisation d'une cellule d'écran à plasma." Toulouse 3, 2004. http://www.theses.fr/2004TOU30114.
Full textAlsheikh, Salo Sami. "Etude des décharges destinées à la production de rayonnement ultra-violet dans des mélanges mercure gaz rare à basse pression." Toulouse 3, 2004. http://www.theses.fr/2004TOU30129.
Full textThe aim of that thesis is to study the properties of a discharge established in mercury/argon and mercury/neon mixtures and controlled by different current wave forms. In such discharges, the emitting gas is the mercury at saturated vapor pressure. A rare gas (in the pressure range of 100 to 700Pa for the Neon and Argon) plays the imprisonment role. For this pressure range, most of the mercury radiation is concentrated in the resonance line at 254nm. This radiation can be directly used for germicide purposes or be converted to visible light through fluorescent powders. The other lines of the mercury spectrum lie in the UV region and some weak ones are in the visible range. The self Consistent Collisional Radiative model developed in this thesis is an improvement of the Argon stationary model previously developed in our laboratory. The temporal dependence of the discharge is now taken into account. Moreover, its new structure allows further extensions to other rare gases or mixtures. The model is validated for time dependant regimes by experimental comparisons performed
Devie, Arnaud. "Caractérisation de l'usage des batteries Lithium-ion dans les véhicules électriques et hybrides. Application à l'étude du vieillissement et de la fiabilité." Phd thesis, Université Claude Bernard - Lyon I, 2012. http://tel.archives-ouvertes.fr/tel-00783338.
Full textMelhem, Wissam. "Contribution à l'étude des onduleurs de tension à commutation douce destinés à le forte puissance." Cachan, Ecole normale supérieure, 1995. http://www.theses.fr/1995DENS0018.
Full textChazottes-Leconte, Aurélien. "Conception et fabrication d'un dispositif de mise en compression par impulsions électro magnétiques (EMP)." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1082.
Full textPenning processes are widely used in industries to apply compressive residual stresses into the most solicited part of mechanical pieces. In that way, the compressive residual stresses limit the priming and the propagation of micro-cracks in the material. This increases significantly the lifespan of the treated mechanical piece under fatigue stresses. These existing peening processes have proved their efficiency and also their limitations and weaknesses. The main recurrent defaults are a shallow depth of treatment, a degradation of the surface condition, a random control of the treatment, a material contamination, etc. These problems have led towards the development of news innovative peening processes which allow better performance avoiding some previous defaults briefly evoked. Among these news processes, the electromagnetic peening process seems especially interesting. This process uses high energy electromagnetic fields to induce Lorentz forces into a metallic piece and thus residual stresses. Actually, there is not much information about this process in the literature and no prototype was ever built. The work of this thesis is dedicated to development and realization of an electromagnetic peening prototype. The first chapter of this thesis adresses the state of the art of major peening processes actually in industrial use. Next, the electromagnetic peening process, or EMP process, is described and the electrical needs are exposed. A second state of the art is made about the technological solutions to respond to the EMP needs. The second chapter is about the conception of the EMP prototype with the electrical structure adopted in the previous chapter. The first step is about the inductor sizing to generate an electromagnetic field sufficient enough for a peening application. Next, the storage system is designed depending on the inductor parameters and finally the closing switch is created considering the electrical parameters used for the EMP process. To validate the previous results, a 3D electromagnetic simulation is done. The prototype assembly is presented in the third chapter and also the first experimental test on the EMP prototype. To begin with, an aluminium alloy with low yield strength is selected to be treated. Two different samples forms are used, a thin one, to realize a similar test to the Almen test and thick one to check the EMP depth of treatment. A 3D multiphysics simulation of these experiments is made and these numeric results are next correlated to the experimental ones. In the fourth chapter, an exploratory study is realized on the effects of the residual stresses on magnetic properties of ferromagnetic material, the mumetal
Tran, Van Top. "Étude de la génération des streamers dans l'huile minérale sous tension impulsionnelle et alternative." Grenoble INPG, 1999. http://www.theses.fr/1999INPG0024.
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