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ORBi Open Repository and Bibliography (259.467 recursos)

In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision). This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.

Engineering, computing & technology

Mostrando recursos 1 - 20 de 9.800

  1. FUNCTIONAL SPECIFICATION METHODOLOGY FOR AN ARCHITECTURAL MODELER SUPPORTING A MODULAR CONSTRUCTIVE SYSTEM

    Boulanger, Christelle; Rahhal, Anabelle; Delfosse, Vincent; Lorquet, Cyril; Leclercq, Pierre
    Peer reviewed

  2. Organic Rankine cycle modelling and the ORCmKit library: analysis of R1234ze(Z) as drop-in replacement of R245fa for low-grade waste heat recovery

    Davide, Ziviani; Dickes, Rémi; Quoilin, Sylvain; Lemort, Vincent; de Paepe, Michel; van den Broek, Martjin
    Peer reviewed

  3. ASPIICS: an externally occulted coronagraph for PROBA-3.Design evolution.

    Renotte, Etienne; Carmen Baston, Elena; Bemporad, Alessandro; Capobianco, Gerardo; Cernica, Ileana; Darakchiev, Radoslav; Denis, François; Desselle, Richard; de Vos, Lieve; Fineschi, Silvano; Focardi, Mauro; Górski, Tomasz; Graczyk, Rafał; Halain, Jean-Philippe; Hermans, Aline; Jackson, Carl; Kintziger, Christian; Kosiec, Jacek; Kranitis, Nektarios; Landini, Federico; Lédl, Vít; Massone, Giuseppe; Mazzoli, Alexandra; Melich, Radek; Mollet, Dominique; Mosdorf, Michał; Nicolini, Gianalfredo; Nicula, Bogdan; Oleański, Piotr; Palau, Marie-Catherine; Pancrazzi, Maurizio; Paschalis, Antonis; Peresty, Radek; Plesseria, Jean-Yves; Rataj, Miroslaw; Romoli, Marco; Thizy, Cédric; Thome, Michel; Tsinganos, Kanaris; Wodnicki, Ryszard; Walczak, Tomasz; Zhukov, Andrei
    PROBA-3 is a mission devoted to the in-orbit demonstration of precise formation flying techniques and technologies for future ESA missions. PROBA-3 will fly ASPIICS (Association de Satellites pour l’Imagerie et l’Interferométrie de la Couronne Solaire) as primary payload, which makes use of the formation flying technique to form a giant coronagraph capable of producing a nearly perfect eclipse allowing to observe the sun corona closer to the rim than ever before. The coronagraph is distributed over two satellites flying in formation (approx. 150m apart). The so called Coronagraph Satellite carries the camera and the so called Occulter Satellite carries the...

  4. The EUI instrument on board the Solar Orbiter mission: from breadboard and prototypes to instrument model validation

    Halain, Jean-Philippe; Rochus, Pierre; Renotte, Etienne; Appourchaux, T.; Berghmans, D.; Harra, L.; Schühle, U.; Schmutz, W.; Auchère, F.; Zhukov, A.; Dumesnil, C.; Delmotte, F.; Kennedy, T.; Mercier, R.; Pfiffner, D.; Rossi, Laurence; Tandy, J.; BenMoussa, A.; Smith, Phyllis
    The Solar Orbiter mission will explore the connection between the Sun and its heliosphere, taking advantage of an orbit approaching the Sun at 0.28 AU. As part of this mission, the Extreme Ultraviolet Imager (EUI) will provide full-sun and high-resolution image sequences of the solar atmosphere at selected spectral emission lines in the extreme and vacuum ultraviolet. To achieve the required scientific performances under the challenging constraints of the Solar Orbiter mission it was required to further develop existing technologies. As part of this development, and of its maturation of technology readiness, a set of breadboard and prototypes of critical subsystems...

  5. Capturing the wide variety of impaired fracture healing phenotypes in Neurofibromatosis Type 1 with eight key factors: a computational study.

    carlier, aurelie; brems, h.; ashbourn, j.m.a.; nica, i; legius, e; Geris, Liesbet
    Peer reviewed

  6. PEGASE OPERA II PRÉSENTATION DES TRAVAUX EFFECTUÉS L’ANNÉE 2

    Everbecq, Etienne; MAGERMANS, POL; Grard, Aline; Graindorge, Caroline; Deliège, Jean-François
    Le logiciel PegOpera est un outil scientifique et opérationnel utilisé entre autres par les gestionnaires de l’eau dans les champs d’applications de la Gestion Intégrée des Ressources en Eau. Développé à l’Aquapôle de l’université de Liège, il est composé : - du modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux), un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières - d’une interface utilisateurs conviviale permettant son utilisation aisée Le modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe...

  7. PegOpera Version 6.1 PRO

    MAGERMANS, POL; Everbecq, Etienne; Grard, Aline; Deliège, Jean-François
    Le logiciel PegOpera est un outil scientifique et opérationnel utilisé entre autres par les gestionnaires de l’eau dans les champs d’applications de la Gestion Intégrée des Ressources en Eau. Développé à l’Aquapôle de l’université de Liège, il est composé : - du modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux), un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières - d’une interface utilisateurs conviviale permettant son utilisation aisée - Le modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe...

  8. A Stochastic Multi-scale Model For Predicting MEMS Stiction Failure

    Hoang Truong, Vinh; Wu, Ling; Paquay, Stéphane; Golinval, Jean-Claude; Arnst, Maarten; Noels, Ludovic
    Adhesion is an important phenomenon in the context of MEMS for which the surface forces become dominant in comparison with the body forces. Because the magnitudes of the adhesive forces strongly depend on the surface interaction distances, which in turn evolve with the roughness of the contacting surfaces, the adhesive forces cannot be determined in a deterministic way. To quantify the uncertainties on the structural stiction behavior of a MEMS, this work proposes a “stochastic multi-scale methodology”. The key ingredient of the method is the evaluation of the random meso-scale apparent contact forces, which homogenize the effect of the nano-scale...

  9. Mean-Field-Homogenization-based stochastic multiscale methods for composite materials

    Wu, Ling; Lucas, Vincent; Adam, Laurent; Noels, Ludovic
    When considering a homogenization-based multiscale approach, at each integration-point of the macro-structure, the material properties are obtained from the resolution of a micro-scale boundary value problem. At the micro-level, the macro-point is viewed as the center of a Representative Volume Element (RVE). However, to be representative, the micro-volume-element should have a size much bigger than the micro-structure size. For composite materials which suffer from a large property and geometrical dispersion, either this requires RVE of sizes which cannot usually be obtained numerically, or simply the structural properties exhibit a scatter at the macro-scale. In both cases, the representativity of the...

  10. Failure multiscale simulations of composite laminates based on a non-local mean-field damage-enhanced homogenization

    Wu, Ling; Adam, Laurent; Doghri, Issam; Noels, Ludovic
    A multiscale method is developed to study the failure of carbon fiber reinforced composites. In order to capture the intra-laminar failure, a non-local mean-field homogenization (MFH) method accounting for the damage evolution of the matrix phase of the composite material [1] is considered. In that formulation, an incremental-secant MFH approach is used to account for the elastic unloading of the fibers during the strain softening of the matrix. In order to avoid the strain/damage localization caused by the matrix material softening, an implicit non-local method [2] was reformulated to account for the composite material anisotropy. As a result, accurate predictions...

  11. The combined mechanism of bone morphogenetic protein- and calcium phosphate-induced skeletal tissue formation by human periosteum derived cells.

    Bolander, J.; Ji, W.; Geris, Liesbet; Bloemen, V.; Chai, Y. C.; Schrooten, J.; Luyten, F. P.
    Peer reviewed

  12. Early BMP, Wnt and Ca(2+)/PKC pathway activation predicts the bone forming capacity of periosteal cells in combination with calcium phosphates.

    Bolander, Johanna; Chai, Yoke Chin; Geris, Liesbet; Schrooten, Jan; Lambrechts, Dennis; Roberts, Scott J.; Luyten, Frank P.
    Peer reviewed

  13. Computational modeling of bone fracture non-unions: four clinically relevant case studies.

    Carlier, Aurelie; Lammens, Johan; Van Oosterwyck, Hans; Geris, Liesbet
    Peer reviewed

  14. OMAE2016 Presentation:Updating failure probability of a welded joint in OWT substructures

    Mai, Anh Quang

  15. Influence of the inter‐stage coupling flexibility on the dynamics of multi‐stage rotors

    Nyssen, Florence; Golinval, Jean-Claude
    Peer reviewed

  16. 3-D finite element analysis of laser cladding process. Application to Ti-6Al-4V

    Tran, Hoang Son
    In this study, a 3-D thermal numerical modelling of laser cladding by powder injection as a repair technology applied to Ti-6Al-4V was developed. In order to implement the movement of the heat source in the model and the addition of material, a C++ programme was developed. Transition refinement elements are used to reduce the number of degrees of freedom. The temperature distribution and its time evolution were computed which allowed the prediction of the heat affected zone and the fusion size of the substrate. Effects of heat source distribution, energy input are investigated. Temperature measurements validate the model.

  17. Network Theory Framework for Urban Cultural Heritage Conservation

    Ginzarly, Manal; Teller, Jacques
    The aim of this study is to propose the application of a network approach to historic urban landscape conservation. Network approaches in landscape ecology and urban studies have been applied in various ways. In a natural landscape, the ecological network model has been applied to conserve biodiversity. The model consists of core areas, corridors, and buffer zones (Cook & van Lier, 1994; Jongman, 2004).In urban studies, the network metaphor has a long tradition especially in transportation planning. More recently, urban design has brought its contribution by different means. Three of these means are: (i) the space syntax method; (ii) the...

  18. Heritage Conservation in River Corridor Cities. The Case of Tripoli, Lebanon.

    Ginzarly, Manal; Teller, Jacques
    Peer reviewed

  19. Precision synthesis of poly(ionic liqui)s in aqueous media by cobalt-mediated radical polymerization

    Cordella, Daniela
    Poly(ionic liquid)s (PILs) are a subclass of polyelectrolytes that gained an enabling role in many fields of polymer chemistry and material science. PILs combine the unique properties of ionic liquids with the flexibility and properties of macromolecules, and provide novel attractive functions. Recently, the precision design of novel PILs by controlled/living polymerization (CLP) techniques was intensively searched for developing emerging applications, such as those based on the self-assembly of block copolymers (BCPs). Indeed, combining the physicochemical properties of PILs with the self-assembly of BCPs is a route to easily produce innovative functional nanostructures that have a huge potential for many...

  20. A comprehensive system of control characters for Ancient Egyptian hieroglyphic text in Unicode

    Nederhof, Mark-Jan; Rajan, Vinodh; Lang, Johannes; Polis, Stéphane; Rosmorduc, Serge; Richter, Tonio Sebastian; Hafemann, Ingelore; Schweitzer, Simon
    We propose a comprehensive system of control characters for encoding Ancient Egyptian hieroglyphs in Unicode.

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