Recursos de colección

ORBi Open Repository and Bibliography (260.650 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 9.826

  1. Integration of Composites for Greener Engine - Rapport scientifique & technique

    Aatach, Mohamed
    Service public de Wallonie : Direction générale opérationnelle de l'économie, de l'emploi et de la recherche - DG06

  2. A general methodology for optimal load management with distributed renewable energy generation and storage in residential housing

    Georges, Emeline; Braun, James; Lemort, Vincent
    Peer reviewed

  3. Ciments ternaires à haute teneur en calcaire

    Pierre, Christian; VanHamme, Géraldine; Lauch, Kim-Séang; Dieryck, Vinciane; Pollet, Valérie; Courard, Luc; Michel, Frédéric

  4. A multiscale computational scheme based on a hybrid discontinuous Galerkin/cohesive zone model for damage and failure of microstructured materials

    Nguyen, Van Dung; Wu, Ling; Leclerc, Julien; Noels, Ludovic

  5. Experimental Passive Flutter Mitigation Using a Linear Tuned Vibrations Absorber

    Verstraelen, Edouard; Habib, Giuseppe; Kerschen, Gaëtan; Dimitriadis, Grigorios
    The current drive for increased efficiency in aeronautic structures such as aircraft, wind turbine blades and helicopter blades often leads to weight reduction. A consequence of this tendency can be increased flexibility, which in turn can lead to unfavourable aeroelastic phenomena involving large amplitude oscillations and nonlinear effects such as geometric hardening and stall flutter. Vibration mitigation is one of the approaches currently under study for avoiding these phenomena. In the present work, passive vibration mitigation is applied to an experimental aeroelastic system by means of a linear tuned vibration absorber. The aeroelastic apparatus is a pitch and flap wing that...

  6. Forecasting travel behavior using Markov Chains-based approaches

    Saadi, Ismaïl; El Saeid Mustafa, Ahmed Mohamed; Teller, Jacques; Cools, Mario
    Peer reviewed

  7. Quantification of nitrogen stress on winter wheat by multispectral vision based on reflectance measurements and textural descriptors

    Marlier, Guillaume; Gritten, Fanny; Fraipont, Guillaume; Leemans, Vincent; Dumont, Benjamin; Destain, Marie-France; Mercatoris, Benoît
    Hand-held sensors (SPAD meter, N-Tester, …) are used for detecting the leaves nitrogen concentration (Nc) on the basis of an optical detection of the chlorophyll concentration. These devices are active sensors: an internal radiation source emits light and transmission through a leaf is measured in the red (650 nm) and in the near-infrared (920 nm) spectral regions. These devices present several drawbacks. The nitrogen concentration is gained by an indirect way through the chlorophyll concentration and the leaves have to be fixed in a defined position for the measurements. These drawbacks could be overcome by an imaging device that measures...

  8. Shear banding simulation in clay rock around an underground opening, and its contact mechanism with the gallery’s lining

    Charlier, Robert; Salehnia, Fatemeh
    Peer reviewed

  9. Hydrodynamics and bed stability at smooth-to-rough transitions. Experiments based on acoustic flow measurements

    Duma, Diana
    As reflected in the scale of large contemporary hydropower schemes, flowing water may carry huge amounts of energy. If not mastered properly, this energy may cause impressive channel erosion and local scour. Therefore, one lasting concern in hydraulic engineering has been the stability of structures, riverbeds and riverbanks against flow erosion. Two main limitations of current understanding of riverbed and riverbank stability are highlighted: the first one is directly linked to the evaluation of the flow action, while the second one relates to the conceptual framework in which stone stability is evaluated. Since the standard approaches use the mean bed shear stress...

  10. AUTOMATIC THRESHOLD-FREE SLEEP SPINDLE DETECTION IN EEG

    Coppieters't Wallant, Dorothé

  11. Lifetime stability study of a NIR hyperspectral imaging system

    Eylenbosch, Damien; Bodson, Bernard; Baeten, Vincent; Fernández Pierna, Juan Antonio

  12. Enhanced sludge dewatering and drying comparison of two linear polyelectrolytes co-conditioning with Polyaluminium chloride

    Pambou, Yvon-Bert; Fraikin, Laurent; Salmon, Thierry; Crine, Michel; Léonard, Angélique
    Peer reviewed

  13. IMPACT OF A HIGH LINEAR WEIGHT POLYMER CO-CONDITIONING WITH POLYALUMINIUM CHLORIDE ON DEWATERING AND CONVECTIVE DRYING OF URBAN RESIDUAL SLUDGE

    Pambou, Yvon-Bert; Fraikin, Laurent; Salmon, Thierry; Crine, Michel; Léonard, Angélique
    Peer reviewed

  14. Enhanced sludge dewatering and drying comparison of two linear polyelectrolytes co-conditioning with Polyaluminium chloride

    Pambou, Yvon-Bert; Fraikin, Laurent; Salmon, Thierry; Crine, Michel; Léonard, Angélique
    Peer reviewed

  15. Biocompatibility of polymer-infiltrated-ceramic-network (PICN) materials with Human Gingival Fibroblasts (HGFs).

    GRENADE, Charlotte; De Pauw-Gillet, Marie-Claire; Gailly, Patrick; Vanheusden, Alain; Mainjot, Amélie
    Peer reviewed

  16. Solving the inverse dynamics of a flexible 3D robot for a trajectory tracking task

    Lismonde, Arthur; Sonneville, Valentin; Bruls, Olivier
    Peer reviewed

  17. On the effect of microstructural anisotropy on the mechanical and thermophysical properties of Ti6Al4V processed by Laser Beam Melting

    Mertens, Anne; Paydas, Hakan; Rigo, Olivier; Carrus, Raoul; Lecomte-Beckers, Jacqueline
    Laser beam melting (LBM) is a strongly directional process in which a metallic powder is deposited layer by layer in a powder bed and molten locally according to the desired shape. When processing Ti6Al4V, it is well known that the latest layer tends to solidify epitaxially on the previous layers, thus giving rise to elongated columnar primary β(BCC) crystals extending over several successive layers. These primary β grains then transforms into the α(HCP) structure upon cooling. The present work aimed at studying the microstructural anisotropy of LBM Ti6Al4V, as well as its consequences on the mechanical and thermophysical properties (i.e....

  18. Characterization of photoactive coatings of SiO2 nanoparticles and Rose Bengal onto glass surfaces

    Mendoza Gallego, Carlos; Lismont, Marjorie; Pàez Martinez, Carlos; Monbaliu, Jean-Christophe; Dreesen, Laurent; Heinrichs, Benoît
    The fluorescence emission and singlet oxygen (1O2) production have been widely investigated over the last decade due to high-value added applications such as organic chemical synthesis1, wastewater treatment2 or photodynamic cancer therapy3. This work is dedicated to the synthesis and deposition of SiO2 nanoparticles on glass surfaces using Stober’s process and dip coating, respectively. The adherence was improved through the incorporation of different concentrations of these nanoparticles into a TiO2 matrix. Additionally, the speed of dip coating was used to modify SiO2 thicknesses. Rose bengal was covalently anchored to SiO2 coatings through (3-aminopropyl)triethoxysilane (APTES) linker. UV, IR, fluorescence, SEM and profilometry were used...

  19. Modélisation d'une climatisation automobile multi-évaporateurs

    Gillet, Thomas; Rullière, Romuald; Haberschill, Philippe; Lemort, Vincent; Andres, Emmanuelle; El-Bakkali, Amin; Olivier, Gérard
    Peer reviewed

  20. Modelling of an automotive multi-evaporator air-conditioning system

    Gillet, Thomas; Lemort, Vincent; Rullière, Romuald; Haberschill, Philippe; Andres, Emmanuelle; El-bakkali, Amin; Olivier, Gérard
    An automotive multi-evaporator air conditioning system, which is composed of two evaporators and a secondary fluid cooler, was modeled using the LMS Imagine.Lab Amesim® 1D software. The present study focuses on understanding the dynamic coupling of the several loop components such as the three evaporators having different cooling capacities. This kind of multi-evaporator air-conditioning system has a number of technological barriers that must be overcome. Understanding the behavior of their respective expansion devices and the choice of these latter is also essential to control properly the transient phase and ensure an optimal operation of the air-conditioning system. In order to...

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