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Статті в журналах з теми "Contraintes spatiales et géométriques":
Berkman, Natalie. "L’Oulipo et la géométrie : l’étrange utilité de la table des matières." Études littéraires 50, no. 2 (November 25, 2021): 17–34. http://dx.doi.org/10.7202/1083994ar.
Cavaco, Sandra, and Jean-Yves Lesueur. "Contraintes spatiales et durée de chômage." Revue française d'économie 18, no. 3 (2004): 229–57. http://dx.doi.org/10.3406/rfeco.2004.1533.
Lunkenbein, Dieter, Huguette Allard, and Cécile Goupille. "Structuration intérieure d’objets géométriques dans la genèse d’idées spatiales." Revue des sciences de l'éducation 9, no. 1 (November 4, 2009): 55–84. http://dx.doi.org/10.7202/900399ar.
Pallascio, Richard, Laurent Talbot, Richard Allaire, and Pierre Mongeau. "L’incidence de l’environnement sur la perception et la représentation d’objets géométriques." Revue des sciences de l'éducation 16, no. 1 (November 19, 2009): 77–90. http://dx.doi.org/10.7202/900652ar.
Dénervaud, Stéphanie, Thierry Dias, and Jimmy Serment. "méso-espace au secours des difficultés d’apprentissage en mathématiques." Revue de Mathématiques pour l’école, no. 240 (December 12, 2023): 103–14. http://dx.doi.org/10.26034/vd.rm.2023.4118.
Meeùs, Nicolas. "Tonalité immanenté, tonalite manlfestee Quelques ré flexions à propos de Tonal Pitch Space de Fred Lerdahl." Musicae Scientiae 7, no. 1 (March 2003): 87–100. http://dx.doi.org/10.1177/102986490300700105.
Lhuillier, Simon, Léo Dutriaux, and Valérie Gyselinck. "Les métamorphoses d’Euclide : une brève histoire des représentations de l’espace en mémoire." Intellectica. Revue de l'Association pour la Recherche Cognitive 74, no. 1 (2021): 101–24. http://dx.doi.org/10.3406/intel.2021.1987.
Peaucelle, Héloïse. "Ressources spatiales d’un ancrage commercial en exil." Mondes arabes N° 4, no. 2 (December 13, 2023): 67–90. http://dx.doi.org/10.3917/machr2.004.0067.
Bouabdallah, Khaled, Sandra Cavaco, and Jean-Yves Lesueur. "Recherche d'emploi, contraintes spatiales et durée de chômage : une analyse microéconométrique." Revue d'économie politique 112, no. 1 (2002): 137. http://dx.doi.org/10.3917/redp.121.0137.
Gibel, Patrick, and Sylvie Blanquart-Henry. "Favoriser l’appropriation des propriétés géométriques des quadrilatères à l’école primaire : étude d’une situation d’apprentissage dans le méso-espace." Revue des sciences de l’éducation 43, no. 1 (November 21, 2017): 37–84. http://dx.doi.org/10.7202/1042074ar.
Дисертації з теми "Contraintes spatiales et géométriques":
Léoty, Florent. "Vers le couplage sémantique de planifications de tâches et de trajectoires pour la validation de tâches complexes sous fortes contraintes spatiales." Electronic Thesis or Diss., Toulouse, INPT, 2023. http://www.theses.fr/2023INPT0135.
To remain competitive, manufacturers need to reduce the costs and development times of their new products. Current products are increasingly integrated, smaller, lighter and more energyefficient. They are more difficult to design and have to be assembled, maintained and disassembled under very high geometric constraints. Traditionally, during the design phase, the CAD model of the product is established, then the physical parts of the product are manufactured, to discover all too often that some or all of the tasks associated with the product's life cycle are difficult or impossible to carry out. If these problems are detected too late, the product design has to be reconsidered. The aim of this thesis is to validate, at the design stage, all the tasks associated to the PLM using digital simulation before the physical prototypes are manufactured. This would make it possible to reduce development times and costs and to aim for more environmentally-friendly manufacturing processes by reducing the number of physical prototypes manufactured. A key step in the simulation-based validation of PLM tasks is to find a feasible collision-free trajectory in order to prove their feasibility. Since the 1980s, the robotics community has been using automatic path planning methods to solve this problem. However, these methods have limitations, mainly linked to the complexity of the environment models, which are traditionally purely geometric. In very complex environments, path planners can propose trajectories that are not very relevant, in times that can be very long, or even fail. To overcome these limitations, some works has considered collaborative human-planner approaches, but these rarely enable continuous interaction. On the other hand, VR techniques allow simulation with a human operator in the loop, immersed in the virtual environment and interacting with it. An original approach linking automatic path planning and VR has been developed at LGP, taking advantage of the computing power of computers and the cognitive abilities of a human operator. However, in this approach, the assistance offered to the operator is not oriented towards the task to be carried out. In order to be able to reason at the level of the task to be carried out, task planning and path planning must be considered together, and attention must be paid to the ability to model information relating to the task and to reason about these information; ontologies are a promising tool. The aim of this thesis is to develop a common framework for the semantic coupling of path and task planners for manipulation assistance in VR or robotics. Within this framework, we propose two main contributions: The first contribution of this work proposes two original ontologies. The first, ENVOn-2, concerns the modelling of the environment in which a manipulation task takes place. The second, TAMPO, is an ontology developed for jointly use path and task planning. The second contribution concerns the development of a methodology for the semantic coupling of task and trajectory planners. This methodology, through the joint use of the two ontologies, makes it possible to improve the path planning of a primitive action while proposing a task plan (or plans) that is (are) relevant to the manipulation being carried out. These developments were then validated using a variety of scenarios of increasing complexity. The results obtained demonstrate the relevance of the approach
Jabeur, Mohamed. "Méthodes géométriques en mécanique spatiale et aspects numériques." Dijon, 2004. http://www.theses.fr/2005DIJOS002.
Le, Guyader Carole. "Imagerie mathématique : segmentation sous contraintes géométriques : théorie et applications." Phd thesis, Rouen, INSA, 2004. http://www.theses.fr/2004ISAM0016.
Le, Guyader Carole. "Imagerie Mathématique: segmentation sous contraintes géométriques ~ Théorie et Applications." Phd thesis, INSA de Rouen, 2004. http://tel.archives-ouvertes.fr/tel-00009036.
Pour pallier ces difficultés, nous proposons ici des modèles de segmentation intégrant des contraintes géométriques et satisfaisant les critères classiques de détection avec en particulier la régularité sur le contour que cela implique.
Jermann, Christophe. "Résolution de contraintes géométriques par rigidification récursive et propagation d'intervalles." Nice, 2002. http://www.theses.fr/2002NICE5766.
Geometric constraint satisfaction problems (GCSPs) are ubiquitous in applications like CAD, robotics or molecular biology. They consist in searching positions, orientations and dimensions of geometric objects bound by geometric constraints. The goal of the thesis was to find an efficient and complete solving method for GCSPs. In the first part, we compare solving methods and decomposition techniques, and we choose Hoffmann et al's decomposition and interval solving methods. We define a general framework for the study of rigidity in GCSPs, a concept used in all the geometric decomposition methods. In the second part, we analyse Hoffmann et al's method, and the limits inherent to all the structural geometric approaches. We propose the degree of rigidity concept to overcome some of these limits. We introduce a new decomposition method, and its combination with interval solving methods
Radvanyi, Jean. "Régions et pouvoirs en U.R.S.S. contraintes spatiales et politique régionale." Lille 3 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375951058.
Jermann, Christophe. "Résolution de contraintes géométriques par rigidifications récursive et propagation d'intervalles." Phd thesis, Université de Nice Sophia-Antipolis, 2002. http://tel.archives-ouvertes.fr/tel-00505433.
Chupeau, Marie. "Différentes propriétés de marches aléatoires avec contraintes géométriques et dynamiques." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066167/document.
We first determine the impact of an infinite reflecting wall on the space occupied by a planar Brownian motion at a fixed observation time. We characterize it by the mean perimeter of its convex hull, defined as the minimal convex polygon enclosing the whole trajectory. We also determine the mean length of the visited portion of the wall, and the survival probability of a Brownian walker in an absorbing wedge.We then study the time needed for a lattice random walker to visit every site of a confined volume, or a fraction of them. We calculate the mean value of this so-called cover time in one dimension for a persistant random walk. We also determine the distribution of the cover time and related observables for the class of non compact processes, which describes a wide range of random searches.After that, we calculate and analyze the splitting probability of a one-dimensional Brownian walker evolving in an expanding or contracting interval.Last, we study several aspects of the model of starving random walk, where the walker starves if its visits to new sites, from which it collects resources, are not regular enough. We develop a mean-field treatment of this model in two dimensions, then determine the impact of regeneration of resources on the survival properties of the walker. We finally consider a model of exploitation of food patches taking explicitly into account the displacement of the walker in the patches, which can be mapped onto the starving random walk model
Thomas-Moinet, Mireille. "Descriptions non cartésiennes et résolution de problèmes géométriques sous contraintes." Châtenay-Malabry, Ecole centrale de Paris, 2008. http://www.theses.fr/2008ECAP1100.
This thesis an effective method to describe and solve in a declarative way geometrical problems defined by constraints. This method of description is omnipresent in CAD to define the shape of objects. To do it, we relied on works already realized in this domain, especially using non-Cartesian approaches. The first chapter makes the synthesis of the state of the art in declarative modelling of a geometric object. The second chapter deals with the chosen modelling : a non-cartesian approach based on a certain metric tensor perturbation. A format equation and an original resolution method are detailed as well as the algorithms implemented. Numerical examples illustrate the performance of the prototype developed. The third chapter proposes to enrich the previous approach using multivectors. New specifications for the user are available and in return, new types of equations must be a generated. Numerical applications of this multi-vectoriel modelling are done. Finally, in the last chapter, it is proposed to extend the tensor model to a model based on geometric algebra. This new tool and a solution allowing to represent objects and constraints with this language, are presented
Ménegaux, David. "Modélisation de courbes et de surfaces algébriques par contraintes géométriques." Dijon, 2006. http://www.theses.fr/2006DIJOS037.
Curves and surfaces modelling is an essential step in the process of designing complex objects. Among the various existing models, we are here interested in the implicit curves and surfaces, i. E. Whose equation is polynomial. The aim of this study is first to solve a set of geometric constraints and find an implicit curve/surface which fits best those constraints: comparisons are made when using different basis to define the functions (such as canonical, radial, or Bernstein-based functions). The second step is about how to compute and plot the curve/surface: a classical subdivision method is used including interval arithmetic, and improved with a method inspired by Bézier, Bernstein and de Casteljau's works. An extension to this method uses the Taylor expansion, allowing transcendent functions to be computed and plotted as well
Частини книг з теми "Contraintes spatiales et géométriques":
COLAS, Maggy, Patrick SIMON, Michel MERMOUX, and Ganesh D. SOCKALINGUM. "Infrarouge et Raman : de la spectroscopie à l’imagerie." In Spectroscopies vibrationnelles, 197–220. Editions des archives contemporaines, 2020. http://dx.doi.org/10.17184/eac.4201.
Haag, Geneviève. "Réflexions sur une forme de symbolisation primaire dans la constitution du Moi corporel et les représentations spatiales, géométriques et architecturales corollaires." In Matière à symbolisation, 75–88. Delachaux et Niestlé (programme ReLIRE), 2000. http://dx.doi.org/10.3917/deni.chouv.2000.01.0075.
Pic, Pauline. "Une géographie politique de l’exploitation des ressources naturelles en Arctique." In Annuaire français de relations internationales, 769–83. Éditions Panthéon-Assas, 2023. http://dx.doi.org/10.3917/epas.ferna.2023.01.0769.