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Academic literature on the topic 'Stimuli de deuxième ordre'
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Journal articles on the topic "Stimuli de deuxième ordre"
Telfener, Umberta. "La thérapie vue comme un processus de deuxième ordre." Cahiers critiques de thérapie familiale et de pratiques de réseaux 66, no. 1 (June 2, 2021): 177–86. http://dx.doi.org/10.3917/ctf.066.0177.
Full textColombini, Ferruccio, and Tatsuo Nishitani. "Équations faiblement hyperboliques du deuxième ordre et classes de fonctions ultradifférentiables." Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 332, no. 1 (January 2001): 25–28. http://dx.doi.org/10.1016/s0764-4442(00)01769-9.
Full textMoroçanu, Gheorghe, and Daniela Zofotä. "Un problème aux limites pour une équation différentielle non linéaire du deuxième ordre." Bulletin de la Classe des sciences 10, no. 1 (1999): 79–88. http://dx.doi.org/10.3406/barb.1999.27978.
Full textMaurel, Christian. "Construction Généalogique et Développement de L'État Moderne. La Généalogie des Bailleul." Annales. Histoire, Sciences Sociales 46, no. 4 (August 1991): 807–25. http://dx.doi.org/10.3406/ahess.1991.278982.
Full textMartin-Hubbard, Marie. "Incursion personnaliste chez les thomistes canadiens-français des années 1930 et 1940 : l’exemple de François Hertel." Mens 6, no. 1 (April 9, 2014): 29–67. http://dx.doi.org/10.7202/1024255ar.
Full textChen, X., and B. Molin. "Calcul des efforts de deuxième ordre à très haute fréquence sur des plates-formes à lignes tendues." Revue de l'Institut Français du Pétrole 46, no. 5 (September 1991): 581–94. http://dx.doi.org/10.2516/ogst:1991029.
Full textNkot, Pierre Fabien. "Le référendum du 20 mai 1972 au Cameroun : analyse de quelques tendances de la doctrine." Les Cahiers de droit 40, no. 3 (April 12, 2005): 665–90. http://dx.doi.org/10.7202/043565ar.
Full textChrudzimski, Arkadiusz. "Catégories formelles, nombres et conceptualisme. La première philosophie de l’arithmétique de Husserl1." Articles 36, no. 2 (March 23, 2010): 427–45. http://dx.doi.org/10.7202/039479ar.
Full textPires, Alvaro P. "Analyse causale et récits de vie." Anthropologie et Sociétés 13, no. 3 (September 10, 2003): 37–57. http://dx.doi.org/10.7202/015095ar.
Full textHecquet-Devienne, Myriam. "L' authenticité de Métaphysique « Alpha » (meizon ou elatton) d'Aristote, un faux problème? Une con firmation codicologique." Phronesis 50, no. 2 (2005): 129–49. http://dx.doi.org/10.1163/1568528053898291.
Full textDissertations / Theses on the topic "Stimuli de deuxième ordre"
Kanniche, Mohamed. "Modèle de turbulence au deuxième ordre : écoulements complexes ou stratifiés." Ecully, Ecole centrale de Lyon, 1990. http://www.theses.fr/1990ECDL0001.
Full textLeloup, Benoît. "L'incertitude de deuxième ordre en économie : le compromis "exploration-exploitation"." Cachan, Ecole normale supérieure, 2002. http://www.theses.fr/2002DENS0013.
Full textAmmari, Kaïs. "Stabilisation d'une classe d'équations d'évolution du deuxième ordre en temps." Palaiseau, Ecole polytechnique, 2000. http://www.theses.fr/2000EPXX0001.
Full textMathault, Jessy. "Adaptation d'un algorithme de deuxième ordre pour l'analyse haute-résolution de courbes électrochimiques." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/30266.
Full textThis master's thesis describes a new method for analyzing cyclic voltammetry curves for an efficient peak detection and automatic baseline substraction. This method uses two distinct algorithms for a precise characterization of Gaussian redox peaks which are correlated with molecules' concentration in a solution. First, significant improvements are made to an existing algorithm that uses iterative polynomial approximations to suppress the baseline automatically from the voltammetric curves. With these enhancements, the algorithm extracts redox peaks from cyclic voltammetry measurements automatically and allows a better representation of the variation of peak's amplitude according to concentration. In addition, the approximation errors are reduced compared to the initial algorithm. Then, the development of an algorithm for characterizing Gaussian peaks based on the MUSIC second-order algorithm is presented. This algorithm is adapted to characterize the number, position, width and amplitude of redox peaks with high accuracy. Finally, the performances of this algorithm are compared with those of other similar algorithms using simulated and experimental curves. The suggested algorithm leads to a better characterization of non-overlapping peaks as well as distorted peaks. It also reduces the frequency of false detections and allows the precise measurement of peaks' positions in noisy signals.
Monnereau, Cyrille. "Synthèse de nouveaux matériaux organiques et organo-métalliques pour l'optique non-linéaire du deuxième-ordre." Nantes, 2005. http://www.theses.fr/2005NANT2059.
Full textThis work deals with the synthesis of new materials for second order nonlinear optical applications. The first section concerned the synthesis on a 10 g scale and the complete study of a cross-linkable model polymer made of an azo-chromophore (DR1). The cross-linking mechanism has been characterized. The evolution of its UV-vis spectrum has been fully rationalized by a theoretical study. In a second section a new cross-linkable polymer has been developped, which includes a " push-pull " porphyrinic chromophore (1. 06= 3500. 10-30 esu). An efficient synthetic route for the preparation of this polymer has been developped. Thin-films of this material have been spin-coated on glass subtracts. The third section concerned the synthesis of terpyridine platinum complexes acting as a link between an electron-rich and an electron-poor ligand. Several complexes of this kind have been synthesised
Chauvin, Jérôme. "Molécules et matériaux polymères photochromes pour l'optique non linéaire du deuxième ordre: orientation, stabilité et photo-commutation." Cachan, Ecole normale supérieure, 1998. http://www.theses.fr/1998DENS0041.
Full textThe second order non linear optical properties (NLO) of polymers are due to an anisotropic distribution of suitable chromophores inside the polymer matrix. The pre-requisite of a non centrosymmetrical ordering of theses chromophores is still a topical question, because the poled-order decay is an irreversible process which tends to annihilate the nonlinear optical response of the material. One part of this work deals with the use of high Tg side-chain DR 1-polyimide to improve the orientational stability. Relaxation of polar orientation has been related to relaxation processes measured by second harmonic generation. The stability is very good after 10 hours at 120°C and the lifetime at room temperature is estimated to more than one year. This polar relaxation could be due to a sub-Tg transition located around 120°C by dielectric measurements. In a second part, we focus on the coupling of the NLO and photochromism effects. We used the photo-assisted poling method to orient the DR1 inside the polyimide matrix. This method has the advantage to induce no thermal degradation of the NLO active chromophores. Indeed, as thermal poling must be made at temperature near Tg, it usually leads to a substantial chemical degradation of organic chromophore in general and of azobenzene derivatives such as DR1 in particular, specially in polyimides which have Tg near 250°C. To realise a photoswitching of the NLO properties, we have synthesized a diarylethene with electron donnor and acceptor substituents. The studies of its properties has been made in solution and in polymer thin film. It shows the possible photoinduced of the NLO signal of a poly methyl methacrylate film doped with the diarylethene
El, Ouazzani Hasnaa. "Propriétés optiques non linéaires du deuxième et troisième ordre de nouveaux systèmes organiques conjugués de type push-pull." Phd thesis, Université d'Angers, 2012. http://tel.archives-ouvertes.fr/tel-00990867.
Full textMigalska-Zalas, Anna. "Etude des effets optiques du deuxième et troisième ordre photo induits dans des complexes alkynyls à base de ruthénium." Angers, 2006. http://www.theses.fr/2006ANGE0022.
Full textThe thesis is devoted to the theoretical and experimental studies of Photo-induced second and third order optical effects in ruthenium alkynyl push pull complexes. The main goal of this work was to determine the influence of the chemical structures of the organometallic compounds on the second and third-order nonlinear optical properties using optically and acoustically induced second harmonic generation (AISHG) and degenerate four wave mixing (DFWM) experiments. The investigation of kinetics of the third order nonlinear optical processes in organometallic complexes is also presented. The alkynyl ruthenium derivatives were embedded in polymethyl methacrylate (PMMA) and polyvinylcarbazole (PVK) polymer matrix. We showed that the influence of the polymer matrix play crucial role for the kinetics of the observed behaviour in the Ru-containing chromophore. The originality of this work consists especially on judicious choice of studied compound according to their potential applications in optoelectronics. We showed a good correlation between the chemical structures and the nonlinear optical properties. We also demonstrate their potentiality for the applications in nonlinear optics (SHG, AISHG,THG) and recently as like optical memories in picoseconds regime
LEJEUNE, BERNARD. "Modèles à erreurs composées et hétérogénéité variable : modélisation, estimation par pseudo-maximum de vraisemblance au deuxième ordre et tests de spécification." Paris 12, 1998. http://www.theses.fr/1998PA122007.
Full textThis thesis considers some econometric issues associated with the modelisation of the heterogeneity of individual behaviors when working with microeconomic panel data. Its purpose is twofold. First, to propose and discuss an extension of the standard error components model which allows to take into account and account for phenomenons of variable heterogeneity. Second, to provide, for its estimation and specification testing, a set of integrated inferential procedures taking explicitly into account a possible misspecification of the assumed form of heterogeneity. The thesis is composed of four chapters. In a very general framework which includes error components models as a special case, chapter 1 establishes the conditions under which second order pseudo-maximum likelihood estimators of a second order semi-parametric model are robust to conditional variance misspecification, and investigates their asymptotic properties. Remaining in the same general framework than chapter 1, chapter 2 describes how, from such a robust estimator, to take advantage of the 'm-testing' approach to extensively test, with or without explicit alternative, the specification of second order semi-parametric models. Chapter 3 exposes and discusses the proposed extension of the standard error components model and, using the general results obtained in the first two chapters, shows how to estimate and test this model in a robust way. Finally, chapter 4 illustrates the practical usefulness of the provided results. This illustration consists in production functions estimation and specification testing, and is based on an incomplete panel dataset of 824 french firms observed over the period 1979-1988 (5201 observations)
East-Lavoie, Simon. "Adaptation d'un algorithme de deuxième ordre pour la détection de pulse sans information de quadrature par le principe du temps de vol." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/27484.
Full textBy using the time-of-flight principle, a system emitting a pulse is able to measure the distance of a target by calculating the echoes' delays returned by the obstacles. Some complex detection situations must be solved, such as two targets producing overlapping echoes. The goal of the detection algorithm is to distinguish targets with overlapping echoes, with a good precision and a good immunity to noise, using real signals, which only the enveloppe's amplitude information is available. The created algorithm is based on the MUSIC algorithm. The later is not working as it is, because of the signals' properties. An adaptation is created, and then optimized. The most substantial improvement comes from the decorrelation processing applied on the signals' covariance matrix. The effect is a decorrelation of the sources, allowing the algorithm to distinguish targets with overlapping echoes. Also, most of the decorrelation techniques help to detect echoes with low SNRs. Another improvement concerns the measurement resolution, which is better than just the sample period. The algorithm's performances exceed those of our industrial partner algorithms and those of commonly used detection methods. The ultimate goal of the project is to integrate the developped algorithm into our industrial partner's system. It has to be real time application, and to respect the cost and ressources constaints of the system. Consequently, some optimizations of the algorithm were required. Some specific properties of the covariance matrix allowed a decrease of the memory space to save its data. This way, the number of matrix's data saved represents less than 5% of the initial covariance matrix. Another optimization is done by using an iterative method for the eigenvalue decomposition, accelerating significantly the processing time. Finally, the algorithm 'sperformances coming out of the comparative tests completed between the adapted MUSIC algorithm and our industrial partner's algorithms demonstrate that the project's goals are fullfilled. The developped algorithm can solve the situation where two targets produce overlapping echoes, while providing a good noise immunity.
Books on the topic "Stimuli de deuxième ordre"
Ordre indépendant des forestiers. Cour Champlain, no 663 (Montréal, Québec). Ordre indépendant des forestiers: Règlements locaux de la Cour Champlain, no 663, séances de la cour les deuxième et quatrième mercredis de chaque mois à la salle des forestiers no 1511, rue Notre-Dame, Montréal. [Montréal?: s.n.], 1987.
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