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Dans cet article, nous présentons un Building Information Modeler mis en œuvre pour la création, la visualisation et l’évaluation des performances d’un projet de bâtiment modulaire, s'appuyant sur une maquette numérique. Nous exposons, dans un premier temps, le contexte et la mise en place de l’approche choisie, dite « par composants » et de sa notion centrale de «catalogue», capable de supporter la virtualisation du système constructif dans le modeler. Dans un second temps, nous décrivons l’architecture logicielle mise en place pour ce modeler original, qui repose sur un modèle de données à double objectif : il s’agit de représenter les catalogues de composants et de permettre l’encodage d’un projet précis. Ensuite, notre article présente les produits obtenus, en termes d’exploitation des informations géométriques et sémantiques des composants de ce catalogue. En particulier, il montre comment, en fonction du type d’activité conduite, ces productions peuvent être générées sous différents formats d’exploitation. Enfin, l’article présente les limites de ce Building Information Modeler et les possibilités futures ouvertes par son extensibilité., Academic Journal of Civil Engineering, Vol 34 No 1 (2016): Special Issue - RUGC 2016 Liège

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info:eu-repo/semantics/published, COLLA'17(Nice), IARIA conference on Advanced Collaborative Networks, Systems and Applications

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info:eu-repo/semantics/published, COLLA'16(Barcelona, Spain), ShareLab, International Multi- Conference on Computing in the Global Information Technology

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info:eu-repo/semantics/published, The Eighth International Conference on Advances in Computer-Human Interactions, ACHI 2015(22-27 Février 2015), Proceedings of the eighth International Conference on Advances in Computer-Human Interactions, ACHI 2015

info:eu-repo/semantics/published, COLLA, Lorenz, P. Leclercq, P. International Academy, Research, and Industry Association, International Conference on Advanced Collaborative Networks, Systems and Applications, COLLA, & InfoWare. (2015). COLLA 2015: The Fifth International Conference on Advanced Collaborative Networks, Systems and Applications :October 11-16, 2015, St. Julians, Malta.

This article sets out the four stages of an analytical approach which enables student - designers at the end of their academic career in the domain of design, to “metareflectively” consider their design and collaboration processes. Inspired by collaborative action research approaches, this analytical approach aims to create a space in which the student can learn and co-construct meaning relative to the activity of collaborative design. It plays a role in enabling the learner/designer/observer to take a step back from their activities, both when considering the activity in isolation and in confronting it to others’ points of view. This article explains the steps and tools (methodological, theoretical and analytical) involved; it also provides feedback on experiences from 7 different contexts. It shows how the system as a whole enables analysis, interpretation, questioning, and critical and collective reflection of the situation., SCOPUS: cp.k, info:eu-repo/semantics/published

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ispartof: pages:1-19 ispartof: Apports de l'image numérique en conception pages:1-19 ispartof: SCAN 2007 - Séminaire de Conception Architecturale Numérique location:Liège date:10 May - 11 May 2007 status: published

Rapport de stage de Master 2 Spécialité Biologie Intégrative des Interactions Plantes, Microbes, Environnement BAP GEAPSI; Master; Climatic changes since more than a century combined with the urge for better crop yields due to a huge demographic growth and coupled with the need for a more sustainable agriculture led to a number of stresses for plants. Understanding them and their effect on growth, seed quality and seed production of plants is one of the most important agronomical issues of our time. We have chosen to study legumes because they are a major lipid and protein source, as both food and feed, and for their unique ability to absorb the atmospheric nitrogen via a symbiosis with Rhizobium bacteria, whereby they can store more protein in their seeds than other crops. They also can establish an endosymbiosis with some soil fungi which improves water and mineral absorption. Legumes are hence interesting research subjects. We worked on the legume model plant, Medicago truncatula, a diploid, autogamous organism which can produce a large number of seeds in a short period of time and is phylogenetically close to the main legume crops in Europe. We focused on the b-ZIP gene family which codes for regulatory factors controlling the plant metabolism under stress conditions and more specifically on the ATB2 gene. ATB2 expression is not yet known in M. truncatula but it is repressed by high sucrose concentrations and it activates the amino acid metabolism in Arabidopsis thaliana whereby it is a critical intermediary between the Carbon and Nitrogen metabolisms in stress conditions. Being very close to the A. thaliana gene AtATB2, MtATB2 could have the same functions. Thus, the main goals of this study were to study the spatiotemporal expression of MtATB2 during the development of the seed (through in situ Hybridization and pATB2-GUS transgenic plants), to start the functional analysis of this gene with Tnt1 insertion mutants, and to test its induction in abiotic stress conditions like water stress. Contamination problems delayed the transformation experiments, which could not be completed during my training’s timeframe. HIS experiments showed that ATB2 is expressed, in the seed, only in the seed coat and specifically in the outer layer of the Hilum area. Its expression is, throughout the development, stable and constant. MtATB2 is also overexpressed in water stress conditions, unlike AtATB2. The Tnt-mutants likely are Knock-Out mutants for ATB2 because its expression is 90-fold lower than in the wild type. In parallel, we studied the expression of possible ATB2 target genes and showed that one gene called ASN1 had an expression 90-fold lower than the wild type. Their affiliation is, thus, probable but not yet proven. Expression of the other putative target genes did not change significantly. All these results suggest that MtATB2 is an important gene for seed development, and possibly an intermediary between Carbon and Nitrogen pathways, like AtATB2. However, the way it works is probably slightly different from AtATB2.

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National audience; Dans un contexte climatique global d’augmentation des températures et de baisses dans les régimes hydriques, et dans la perspective de développer une agriculture plus respectueuse de l’environnement, l’étude de la réponse des plantes aux stress abiotiques (thermiques et hydriques) et aux carences nutritives (bas niveau d’intrants) est cruciale. Nous nous intéressons en particulier à l’impact de ces stress sur le développement des légumineuses en fin de cycle (pois et Medicago truncatula), incluant la remobilisation vers les graines de l’azote accumulé dans les organes sources et le développement de la graine (embryogenèse précoce et accumulation des réserves). Les objectifs sont d’identifier et de caractériser des gènes régulateurs situés à l’interface entre les voies de développement et de réponse aux stress et qui sont susceptibles de jouer un rôle dans les mécanismes d’adaptation des plantes aux stress abiotiques et nutritifs. Dans ce contexte, nous étudions un facteur de transcription (FT) de la famille des b-ZIP nommé ATB2, dont l’orthologue putatif chez Arabidopsis thaliana joue un rôle dans la réponse de la plante aux stress nutritifs. Nous présenterons ici la caractérisation du rôle de ce FT chez Medicago par une combinaison d’approches allant de l’étude de mutants perte de fonction en passant par la caractérisation de son expression (hybridation in situ, plantes transgéniques pATB2 :GUS) et de ses gènes cibles putatifs, dans des conditions favorables et stressantes. Nous avons également débuté le transfert de ces connaissances vers le pois protéagineux (Pisum sativum L.) avec notamment la recherche de l’orthologue d’ATB2 et de mutant TILLING correspondant.

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ispartof: Artificial Intelligence for Engineering Design, Analysis and Manufacturing vol:26 issue:03 pages:281-301 status: published

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