Search results for "génie"
showing 10 items of 131 documents
Évolution des conceptions après une formation pédagogique
2008
08050 - Egalement disponible à l'adresse : http://www.aipu2008-montpellier.fr/index.php?dossier_nav=839; International audience; Depuis 2005, l'université de Bourgogne (France) offre à ses chargés de TD/TP (assistants) la possibilité de se former à leur métier d'enseignant via une formation pédagogique de 4 jours. Cette formation vise à les aider à se constituer un référentiel -tant pratique que théorique- afin de s'acquitter au mieux de leurs tâches d'enseignement. Elle a jusqu'à présent accueilli environ 80 jeunes enseignants issus de diverses disciplines. Nous avons souhaité mesurer les effets formatifs perçus par les apprenants. Pour ce faire, si l'on considère que l'apprentissage peut …
3D Ruthenium Nanoparticle Covalent Assemblies from Polymantane Ligands for Confined Catalysis
2020
International audience; The synthesis of metal nanoparticle (NP) assemblies stabilized by functional molecules is an important research topic in nanoscience, and the ability to control interparticle distances and positions in NP assemblies is one of the major challenges in designing and understanding functional nanostructures. Here, two series of functionalized adamantanes, bis-adamantanes, and diamantanes, bearing carboxylic acid or amine functional groups, were used as building blocks to produce, via a straightforward method, networks of ruthenium NPs. Both the nature of the ligand and the Ru/ligand ratio affect the interparticle distance in the assemblies. The use of 1,3-adamantanedicarb…
Effect of inoculation with selected Bradyrhizobium spp. on the survival and growth of Acacia mangium saplings after 20 months in the field
1999
This work was designed to test the long-term effect of the inoculation of #Acacia mangium# seedlings with 10 selected strains of #Bradyrhizobium spp.#. The percentage of survival of seedlings inoculated with any of the #Bradyrhizobium# strains was increased by 10% as compared to the control plants. However, out of the 10 #Bradyrhizobium# strains tested, only 3 strains, Aust l3c, Lu 4 and Tel 8, belonging to the phylogenelic group 1, significandy enhanced the growth of #A. mangium# after 20 months in the field. For the first time, inoculation with indigenous Malaysian strains #Bradyrhizobium# such as Tel 8 and Lu 4 at the seedling stage is reported to produce enhanced and sustained growth an…
La communication : en long, en large mais surtout en travers
2016
International audience; Dans le cycle de conférences autour de « la communication, un enjeu citoyen », ma démarche est sans doute particulière puisqu'elle vise tout particulièrement l'enseignement de la communication. Et pourtant, il nous semble que cet enseignement participe pleinement à la notion de citoyen responsable. Une communication sur la communication. Voilà ce que le titre évoque. Mais si le titre de ce texte fait place à la communication, il se veut équivoque. En effet, l'expression « en travers » prête à commentaire. Aussi, précisons que celle-ci désigne la transversalité de la discipline et de son enseignement. Communication ! Le mot à lui tout seul laisse rêveur, tant il est u…
The household location in multicenter urban spaces
1991
In multicenter urban spaces, the household location problem is to find an optimal location taking into account the locations of several economic centers.In this article, we show that the usual model, maximizing a residential utility under a budget spatial constraint, can’t give a satisfactory solution.So, we construct a fuzzy spatial model, including imprecision in consumer’s behavior. This model allows us to find an optimal location in a multicenter urban setting. Then, an empirical study illustrates the performances of the fuzzy model.
Agroecological engineering
2015
Earth has recently entered the new era of the Anthropocene, during which the rise of human activities are impacting for the first time ecosystems and climate on the global scale. Since the 1960s the green revolution has improved food production in quantity using industrially-designed agriculture, which has led to global pollution by pesticides and losses of food quality, biodiversity and soil carbon. As a consequence there is a need to implement agroecological practices in order to produce food safely and in a sustainable way. This virtual issue presents principles and applications of agroecological engineering, exemplified in 19 selected review articles from the journal Agronomy for Sustai…
Depth Enhancement by Fusion for Passive and Active Sensing
2012
This paper presents a general refinement procedure that enhances any given depth map obtained by passive or active sensing. Given a depth map, either estimated by triangulation methods or directly provided by the sensing system, and its corresponding 2-D image, we correct the depth values by separately treating regions with undesired effects such as empty holes, texture copying or edge blurring due to homogeneous regions, occlusions, and shadowing. In this work, we use recent depth enhancement filters intended for Time-of-Flight cameras, and adapt them to alternative depth sensing modalities, both active using an RGB-D camera and passive using a dense stereo camera. To that end, we propose …
Which food for whom?
2015
From lack of food to food excess there are numerous different forms of malnutrition, caused by many determining factors. Improving the nutritional condition of populations therefore is a key task of public health care on a planetary level. It is also an economic challenge. The development of an agro-industrial system over the last sixty years has no doubt contributed to make foods safer, but it has also contributed to the consumption of products which are too fat and too sweet. As a consequence the innovation of healthier foods that are affordable has now become an important challenge. This challenge requires developing a new food engineering approach, notably improving the understanding of…
Retour critique sur une démarche de débat citoyen en ligne
2020
La présentation reviendra sur une démarche de débat citoyen organisé à partir d’une plateforme numérique pensée collectivement durant la crise sanitaire liée au Convid-19. Il s’agit d’opérer un retour critique au sens où nous interrogerons les tenants et les aboutissants d’une telle démarche, entendons les limites et les points forts, les doutes et les certitudes. Notre présentation s’articulera autour de trois questions : Qu’est-ce qu’une « ingénierie du sensible » ?Qu’est-ce que veut dire « représentatif » ? Qu’est-ce que veut dire « scientifique » ? Parallèlement, nous reviendrons sur la nécessité que nous avons ressentie de tenir un journal de bord analytique qui, précisément, fait suit…
A Trusted Hybrid Learning Approach to Secure Edge Computing
2021
Securing edge computing has drawn much attention due to the vital role of edge computing in Fifth Generation (5G) wireless networks. Artificial Intelligence (AI) has been adopted to protect networks against attackers targeting the connected edge devices or the wireless channel. However, the proposed detection mechanisms could generate a high false detection rate, especially against unknown attacks defined as zero-day threats. Thereby, we propose and conceive a new hybrid learning security framework that combines the expertise of security experts and the strength of machine learning to protect the edge computing network from known and unknown attacks, while minimizing the false detection rat…