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École thématique

Doctoral

- Course of the New Center of Research and Practice, 8 sessions 2:30h, from september to november 2018 International course by Hangout- Cours en 8 séances de 2:30h au New Center of Research and Practice de septembre à novembre 2018Cours international par Hangout; Doctoral; Course description This seminar is concerned with redefining the relationship of the future within the domains of philosophy, arts, and sciences. We will study how the future is not only a temporal lapse, supposed to occur after the past and the present, but above all a modality capable of intervening in the present. If the perspective of our future no longer depends on forthcoming developments of the present, then we will acquire a more intimate knowledge of the unknown that will introduce changes in our present. Invention is implicitly motivated by the call of the future. But this is an imagined future, inchoative, with snatches and sketches of images, time and places; a general idea that motivates invention. These fragments of the future, partly unknown and never completely given, are what allows one to inhabit space and time, and to find its individuation among others: The future that often gives rise to apocalyptic or science-fiction narratives is one already determined and received from the outside. However, the kind of future that stimulates invention is not engaged with existing narratives, but with the diversity of modes of invention of the disciplines themselves, as well as of the imagination and fiction peculiar to them. Invention cannot be separated from the future, but this is a future that resists narration, and which, from this point of view, contains a driving charge of silence. The seminar is both a review of existing literature regarding the connections between philosophy, arts, sciences, the future, and fiction: a forum for generating new associations between the realms. Throughout the seminar, students will work individually and collaboratively to work on practical exercises concerning the following: Consideration of the future does not depend on any discipline and it can be apprehended by each. We propose exercises of philosophical invention, of which we will give elements of methods, from future developed by the students according to their discipline of origin and/or their activity.

École thématique

Doctoral; Presentation reports current progress of the PhD research. Specifically, it shows an application of R programming language for geostatistical data processing and other methods (QGIS, Python, etc) for Mariana Trench modelling and cartographic mapping. The impact of the geographic location and geological factors on its geomorphology has been studied by methods of statistical analysis and data visualization using R libraries. Research aim is to identify main impact factors affecting variations in the geomorphology of the Mariana Trench: steepness angle and structure of the sediment compression. Research focus is upon understanding variability of factors responsible for the deep ocean trench formation and comparative analysis of its geomorphic structure. It contributes towards investigations of the geology of the Pacific Ocean and the interplay between geomorphic, geological, tectonic and volcanic factors affecting submarine landform formation.

École thématique; Signal is an "alternative" synchronous language, with the following features: it addresses open systems and puts clocks ans synchronization at the forefront. To this end, synchronization is synthesized, not verified. We will emphasize the clock and causality calculus and show its use in modular compilation. Then, we'll show how we can extend the clock calculus and improve the power of the language, and extend the causality calculus toward supporting constraint solving (instead of evaluating signal expressions). The latter extension may be suited to physical system modeling.; Conçu et développé à la même période que les autres langages synchrones, Signal, avec le recul, apparaît comme étant à part dans le paysage. Il est dédié aux systèmes dits "ouverts" et se focalise sur la synchronisation et les horloges. La synchronisation d'un programme est synthétisée et non pas vérifiée. Nous expliquerons les principes de cette approche, et, en premier, le calcul d'horloges et de causalité, qui permet de dégager une notion d'interface utile pour la compilation modulaire. Notre objectif, au-delà du langage, est de montrer l'intérêt de ces principes. Nous expliquerons comment exploiter les avancées récentes des techniques de preuve pour augmenter la puissance du calcul d'horloges. Et, surtout, nous expliquerons comment une extension du calcul de causalité permet de traiter des programmes incluant des contraintes numériques, extension utile lorsqu'on s'intéresse à la modélisation de systèmes physiques.

École thématique

DEUG; This course was given during a summer school on AI in Cotonou, Benin, July-Aug. 2021. The school was organized by the Benin Excellence NGO and the Vallet Foundation. The course provides basic concepts about numerical optimization i) for an audience interested in machine learning ii) with a background corresponding to 1 year after high school iii) through examples coded in R from scratch. The algorithms are not exactly those used in state-of-the-art deep learning, but the main underlying concepts are presented.

École thématique; The aim of the school is to educate participants in different theoretical and practical aspects of the design and modelling of superconducting electrical machines. An essential point of this school will be the practical application during the afternoons of theoretical content seen in the morning. Each participant will have access to a computer with all the necessary software. As the school is intended for doctoral students or young researchers, activities allowing the integration of the group's members and networking will also be provided.The main topics covered are: Superconductivity, bulk superconductors and their magnetization Analytical modelling and design of HTS machines Modeling of HTS systems including ferromagnetic materials using open-source softwares (GMSH / GetDP...) Dynamic modelling and evaluation of AC Losses in HTS windings using T-A formulation in COMSOL

Doctoral