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Academic literature on the topic 'Contrôle impulsionnelle'
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Journal articles on the topic "Contrôle impulsionnelle"
van Nechel, Ch, Michel Toupet, Isabelle Bodson, and Eléonore Kouame. "Progression du contrôle postural lors d’une épreuve impulsionnelle en posturographie multisegment." Oto-Rhino-Laryngologia Nova 10, no. 1 (2000): 40–46. http://dx.doi.org/10.1159/000027948.
Full textAmami, Rim. "Applications des EDSR à horizon infini à un problème de contrôle impulsionnel." Comptes Rendus Mathematique 350, no. 5-6 (March 2012): 267–71. http://dx.doi.org/10.1016/j.crma.2012.03.005.
Full textDissertations / Theses on the topic "Contrôle impulsionnelle"
Bontaz, Joëlle. "Une méthode photothermique impulsionnelle appliquée au contrôle de matériaux composites." Bordeaux 1, 1991. http://www.theses.fr/1991BOR10523.
Full textHamadène, Saïd. "Contribution au contrôle impulsionnel en information partielle." Paris 6, 1986. http://www.theses.fr/1986PA066262.
Full textLescribaa, Dominique. "Caractérisation et contrôle des revêtements déposés au plasma par échographie impulsionnelle et microscopie acoustique basse fréquence." Lyon, INSA, 1993. http://www.theses.fr/1993ISAL0066.
Full textThis work deals with characterization and testing of plasma sprayed coatings using ultrasonic non destructive methods. The acoustic characterization of the coatings is made by measuring velocity and attenuation of waves with a method based on ultrasonic spectroscopy. Microstructural observations show porosity and microcracking in the plasma materials and allow us to explain the particular acoustic properties of these coatings that are a low velocity and a high attenuation. The testing of the interfaces bas been carried out using the pulse echograpby and the low frequency acoustic microscopy techniques. The knowledge of acoustic properties allows us to interpret, to model and to predict the acoustic responses got from the coated systems. In particular, in the case of the low frequency acoustic microscopy we have modelled the V(z) response of the systems using a method based on decomposition of the field radiated by the transducer in his plane waves angular spectrum. At last the coatings used like thermal barrier are tested at high temperature submitting them to repetitive thermal solicitations. The coating damage at its interface and the acoustic properties evolution are followed by the previously developed techniques
Enguehard, Franck. "Mesure de la diffusivité thermique radiale de matériaux anisotropes et détection de fractures transverses par la technique photothermique impulsionnelle de diffusion convergente." Châtenay-Malabry, Ecole centrale de Paris, 1991. http://www.theses.fr/1991ECAP0235.
Full textOuarradi, Noureddine. "Etude théorique et expérimentale du champ ultrasonore transitoire généré par un transducteur plan dans un milieu solide homogène et isotrope : Approche de la réponse impulsionnelle de diffraction." Valenciennes, 1999. https://ged.uphf.fr/nuxeo/site/esupversions/00c238b0-7907-4a5d-a70f-ddf9c707e8e9.
Full textCai, Jiatu. "Méthodes asymptotiques en contrôle stochastique et applications à la finance." Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC338.
Full textIn this thesis, we study several mathematical finance problems related to the presence of market imperfections. Our main approach for solving them is to establish a relevant asymptotic framework in which explicit approximate solutions can be obtained for the associated control problems. In the first part of this thesis, we are interested in the pricing and hedging of European options. We first consider the question of determining the optimal rebalancing dates for a replicating portfolio in the presence of a drift in the underlying dynamics. We show that in this situation, it is possible to generate positive returns while hedging the option and describe a rebalancing strategy which is asymptotically optimal for a mean-variance type criterion. Then we propose an asymptotic framework for options risk management under proportional transaction costs. Inspired by Leland’s approach, we develop an alternative way to build hedging portfolios enabling us to minimize hedging errors. The second part of this manuscript is devoted to the issue of tracking a stochastic target. The agent aims at staying close to the target while minimizing tracking efforts. In a small costs asymptotics, we establish a lower bound for the value function associated to this optimization problem. This bound is interpreted in term of ergodic control of Brownian motion. We also provide numerous examples for which the lower bound is explicit and attained by a strategy that we describe. In the last part of this thesis, we focus on the problem of consumption-investment with capital gains taxes. We first obtain an asymptotic expansion for the associated value function that we interpret in a probabilistic way. Then, in the case of a market with regime-switching and for an investor with recursive utility of Epstein-Zin type, we solve the problem explicitly by providing a closed-form consumption-investment strategy. Finally, we study the joint impact of transaction costs and capital gains taxes. We provide a system of corrector equations which enables us to unify the results in [ST13] and [CD13]
Guilliorit, Emmanuel. "Génération d'ondes acoustiques par micro-ondes impulsionnelles." Bordeaux 1, 2001. http://www.theses.fr/2001BOR12421.
Full textBaradel, Nicolas. "Contrôle Stochastique Impulsionnel avec Incertitude en Finance et en Assurance." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLED078.
Full textThis PhD thesis is composed of three chapters, which deal with applications of impulse control in Finance and Insurance. In the first chapter, we introduce a general framework of impulse control with uncertainty. Knowing a prior on unknown parameters, we explain how it should evolve and we integrate it in the formulation of the optimal control problem. We characterize the solution via a parabolic quasi-variational partial differential equation, which can be solved numerically. We give examples of application in finance. In the second chapter, we define an impulse control problem with uncertainty arising in actuarial sciences. A (re-)insurer faces natural disasters and may issue CAT bonds in order to reduce the risk taken. The problem is solved using a PDE approach. A numerical scheme and different examples of application are provided. In the last chapter, we propose a price model defined through a completely endogenous order book. We solve optimal impulse control problems (order placement) of rational economic agents that we gather on the same market
Guignard, Céline Martine. "Réalisation de sources impulsionnelles pour les télécommunications optiques." Rennes 1, 2005. https://tel.archives-ouvertes.fr/tel-00260197.
Full textGuignard, Celine. "Réalisation de sources impulsionnelles pour les télécommunications." Phd thesis, Université Rennes 1, 2005. http://tel.archives-ouvertes.fr/tel-00260197.
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