Cet article s’intéresse à la manière dont l’écriture littéraire peut contribuer valorisation et transmission du patrimoine urbain par mise en lumière d’un genius loci. À partir de cette notion « génie lieu » appliquée ville Sienne, vécue trois écrivains, Hippolyte Taine, André Suarès, Dominique Fernandez, nous étudierons les éléments patrimoines matériels immatériels que le langage valoriser au...

Nantes et la métropole nantaise ont développé le « dialogue citoyen », outil pour associer population aux décisions, en particulier dans conception de ville. Cet intermédiaire entre top-down classique démocratie participative évite les sujets économiques culturels pourtant essentiels modèle nantais. Au-delà des contraintes techniques, c’est certainement caractère contradictoire modèles mobilisé...

In this paper, a novel framework based on a time-frequency (TF) approach is proposed for detection of murmurs from heart sound signal. First, a high-resolution TF algorithm, matching pursuit, was used to decompose each heart beat into a series of TF atoms selected from a redundant dictionary. Next, representative components of murmurs were identified by clustering the selected atoms of all the ...

The purpose of this paper is to review the work that has been done in the past years by various researchers in vibration based health and usage monitoring and to identify the principal features and signal-processing algorithm used to this purpose. The damage detection concepts and the signal analysis techniques will be reviewed and categorized. Latest advances in signal processing methodologies...

Introduction: Le strabisme est défini comme un syndrome à double composante : motrice et sensorielle. Le but de ce travail est de décrire les aspects épidémiologiques et cliniques du strabisme chez l'enfant congolais de 0 à 15 ans dans la ville de Lubumbashi. Méthodes: Il s'agit d'une étude descriptive longitudinale sur les aspects épidémiologiques et cliniques du strabisme chez l'enfant congol...

A symmetry classification of possible interactions in a diatomic molecular chain is provided. For nonlinear interactions the group of Lie point transformations, leaving the lattice invariant and taking solutions into solutions, is at most five-dimensional. An example is considered in which subgroups of the symmetry group are used to reduce the dynamical differential-difference equations to pure...

Résumé : Nous présentons un modèle d’environnement sémantique pour la simulation urbaine. Dans ce types de simulations, les agents représentent les individus ou les véhicules dans la ville, qui constitue leur environnement. Notre objectif est de rendre cet environnement compréhensible par les agents, afin de leur permettre de faire des choix d’actions cohérents. L’idée que nous adoptons dans no...

The information conveyed by the discrete Wigner-Ville representations of real, complex or analytic signals is highly redundant, each time-frequency location being related to others via non-obvious relationships. In this paper, we demonstrate that there also exists a large amount of linear relationships between time-frequency samples. This implies that a whole discrete Wigner-Ville representatio...

Due to the non-stationary, multicomponent nature of biomedical signals, the use of time-frequency analysis can be inevitable for these signals. The choice of the proper time-frequency distribution (TFD) that can reveal the exact multicomponent structure of biological signals is vital in many applications, including the diagnosis of medical abnormalities. In this paper, the instantaneous frequen...

Abstmct-The Wigner-Ville spectrum has been recently introduced as the unique generalized spectrum for time-varying spectral analysis. Its properties are revised with emphasis on its central role in the analysis of second-order properties of nonstationary random signals. We propose here a general class of spectral estimators of the Wigner-Ville spectrum: this class is based on arbitrarily weight...