Publications ORBi OA
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See detailInfluence de la modalité visuelle sur l'évaluation acoustique de salles
Defays, Aurore ULg; Safin, Stéphane ULg; Billon, Alexis ULg et al

in Actes du 45ème congrès de la Société d'ergonomie de langue française. (2010)

Le projet AURALIAS vise à développer un environnement immersif permettant le travail coopératif entre architectes et acousticiens. Ce système associe donc un rendu sonore 3D et une vue du modèle 3D de la ... [more ▼]

Le projet AURALIAS vise à développer un environnement immersif permettant le travail coopératif entre architectes et acousticiens. Ce système associe donc un rendu sonore 3D et une vue du modèle 3D de la salle considérée. Dans ce cadre, nous nous intéressons à l’impact de l’image projetée sur le jugement subjectif de l’acoustique de la salle. 70 sujets ont été confrontés à une tâche de jugement du degré de réverbération d’un extrait sonore dans une situation contrôle (sans image) puis dans une situation expérimentale avec, pour la première partie des sujets, une image visant à soutenir le jugement (cohérente avec le son), pour la deuxième partie, une image « distractrice », et pour la troisième partie, sans image (groupe témoin). Nos résultats montrent une influence positive des images évocatrices et pas d’effet des images distractrices. [less ▲]

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See detailL'acquisition immobiliere internationale
Wautelet, Patrick ULg

in Guide de droit immobilier (2010)

In this chapter an attempt is made to describe the law of cross-border real estate acquisition. This is done first by analyzing the cross-border real estate sale (looking in particular at which law ... [more ▼]

In this chapter an attempt is made to describe the law of cross-border real estate acquisition. This is done first by analyzing the cross-border real estate sale (looking in particular at which law applies to the substance of the real estate agreement and what requirements apply in order to conclude a valid agreement as to the formal requirements). In a second stage, an analysis is made of the legal aspects of real estate financing, looking at the impact of mandatory provisions regarding mortgage lending. In a final chapter, some thoughts are offered on the securities used to back up mortgage lending, in particular the use of mortgage in cross border real estate acquisition. [less ▲]

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See detailAdaptation mutuelle du processus de conception, du rôle de l’enseignant et de la qualité de la collaboration dans une situation de conception collaborative à distance.
Safin, Stéphane ULg; Verschuere, Aurélie; Burkhardt, Jean-Marie et al

in Nyssen, Anne-Sophie (Ed.) Fiabilité, Adaptation et Résilience. SELF’2010, Congrès International d’Ergonomie (2010)

This paper presents the results of a study on the collaboration modalities in a architectural design remote studio, gathering students from France and Belgium. This several months activity has been ... [more ▼]

This paper presents the results of a study on the collaboration modalities in a architectural design remote studio, gathering students from France and Belgium. This several months activity has been supported by the Collaborative Design Studio, a multimodal collaboration setting aiming at re-creating, remotely, the conditions of the copresence. We investigate, on a longitudinal basis and with a comparative approach, three variables and their inter-relations: the quality of the collaboration, the collaborative design process and the role spontaneously adopted by the teacher. We show that these variables are closely interdependent. [less ▲]

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See detailPatient specific modelling of cardiac muscle activation
Stevenson, D; Hann, CE; Revie, JA et al

in Proceedings of the Health Research Society of Canterbury (HRSC) Clinical Meeting 2010 (2010)

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See detailDes alternatives aux plants invasives: la prévention commence dans nos jardins!
Halford, Mathieu ULg; Vanderhoeven, Sonia; Heemers, Leen et al

Learning material (2010)

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See detailModel-based assessment of ventricular contractility
Desaive, Thomas ULg; Hann, CE; Chase, JG

in Proceedings of the 19th International Conference of the Cardiovascular System Dynamics Society (2010)

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See detailLe comportement suicidaire chez l'enfant
Malchair, Alain ULg

in Revue Médicale de Liège (2010), 65(2), 67-70

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See detailAxion-like particles and circular polarisation of active galactic nuclei
Payez, Alexandre ULg; Cudell, Jean-René ULg; Hutsemekers, Damien ULg

in Jaeckel, Joerg; Lindner, Axel; Redondo, Javier (Eds.) Proceedings of the 5th Patras Workshop on Axions, WIMPs and WISPs PATRAS 2009 (2010)

The measurements of the linear polarisation of visible light from quasars give strong evidence for large-scale coherent orientations of their polarisation vectors in some regions of the sky. We show that ... [more ▼]

The measurements of the linear polarisation of visible light from quasars give strong evidence for large-scale coherent orientations of their polarisation vectors in some regions of the sky. We show that these observations can be explained by the mixing of the photons with very light pseudoscalar (axion-like) particles in extragalactic magnetic fields during their propagation. We present a new treatment in terms of wave packets and discuss the circular polarisation. [less ▲]

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See detailOn the circular polarisation of light from axion-photon mixing
Payez, Alexandre ULg; Cudell, Jean-René ULg; Hutsemekers, Damien ULg

in Alimi, Jean-Michel; Füzfa, André (Eds.) INVISIBLE UNIVERSE: Proceedings of the Conference. AIP Conference Proceedings 1241. (2010)

From the analysis of measurements of the linear polarisation of visible light coming from quasars, the existence of large-scale coherent orientations of quasar polarisation vectors in some regions of the ... [more ▼]

From the analysis of measurements of the linear polarisation of visible light coming from quasars, the existence of large-scale coherent orientations of quasar polarisation vectors in some regions of the sky has been reported. Here, we show that this can be explained by the mixing of the incoming photons with nearly massless pseudoscalar (axion-like) particles in extragalactic magnetic fields. We present a new treatment in terms of wave packets and discuss its implications for the circular polarisation. [less ▲]

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See detailThe Total Cross Section at the LHC: Models and Experimental Consequences
Cudell, Jean-René ULg

(2010)

I review the predictions of the total cross section for many models, and point out that some of them lead to the conclusion that the standard experimental analysis may lead to systematic errors much ... [more ▼]

I review the predictions of the total cross section for many models, and point out that some of them lead to the conclusion that the standard experimental analysis may lead to systematic errors much larger than expected. [less ▲]

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See detailEffect of various Neurally adjusted ventilatory assist (NAVA) gains on the relationship between diaphragmatic activity (Eadi max) and tidal volume
Chiew, YS; Piquilloud, L.; Desaive, Thomas ULg et al

in Intensive Care Medicine (2010), 37 (Suppl 1)

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See detailThe critical role of carbohydrate administration in safe, effective TGC
PREISER, Jean-Charles ULg; Suhaimi, F; Chase, JG et al

in Clinical Nutrition (2010), 5 (Suppl 2):111

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See detailPatient-specific modelling of cardiovascular dysfunction: Identifying models of pulmonary embolism in pigs
Desaive, Thomas ULg; Revie, J; Hann, CE et al

in Proceedings of the 19th International Conference of the Cardiovascular System Dynamics Society (2010)

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See detailModel-based cardiac disease diagnosis in critical care
Revie, JA; Hann, CE; Stevenson, D et al

in Proceedings of the Health Research Society of Canterbury (HRSC) Clinical Meeting 2010 (2010)

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See detailValidation of a virtual trial method for tight glycemic control in intensive care
Suhaimi, F; Chase, JG; PREISER, Jean-Charles ULg et al

in Proceedings of the Health Research Society of Canterbury (HRSC) Clinical Meeting 2010 (2010)

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See detailAbstract of the first IGCP – 580 meeting (Liège, Belgium, 2-6 December 2009)
Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg

Book published by Geologica Belgica (2010)

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See detailConception et réalisation du système de déploiement des antennes du nanosatellite OUFTI-1
Wertz, Jérôme ULg; Lenaerts, Vincent; Bruls, Olivier ULg et al

in Coudyser, A. (Ed.) Revue Scientifique des Instituts Supérieurs Industriels Libres Francophones, volume 24 (2010)

The OUFTI-1 satellite is a CubeSat (a standard cubic satellite of 10cm edge and 1 kg mass maximum) developed at University of Liège. The subject of the master thesis is the design and realization of its ... [more ▼]

The OUFTI-1 satellite is a CubeSat (a standard cubic satellite of 10cm edge and 1 kg mass maximum) developed at University of Liège. The subject of the master thesis is the design and realization of its antennas, and also of their deployment system. The thesis result is a prototype including all the system functions and which has been vacuum-tested. [less ▲]

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See detailExploiting policy knowledge in online least-squares policy iteration: An empirical study
Busoniu, Lucian; Ernst, Damien ULg; Babusku, Robert et al

in Automation, Computers, Applied Mathematics (2010), 19(4), 521-529

Reinforcement learning (RL) is a promising paradigm for learning optimal control. Traditional RL works for discrete variables only, so to deal with the continuous variables appearing in control problems ... [more ▼]

Reinforcement learning (RL) is a promising paradigm for learning optimal control. Traditional RL works for discrete variables only, so to deal with the continuous variables appearing in control problems, approximate representations of the solution are necessary. The field of approximate RL has tremendously expanded over the last decade, and a wide array of effective algorithms is now available. However, RL is generally envisioned as working without any prior knowledge about the system or the solution, whereas such knowledge is often available and can be exploited to great advantage. Therefore, in this paper we describe a method that exploits prior knowledge to accelerate online least-squares policy iteration (LSPI), a state-of-the-art algorithm for approximate RL. We focus on prior knowledge about the monotonicity of the control policy with respect to the system states. Such monotonic policies are appropriate for important classes of systems appearing in control applications, including for instance nearly linear systems and linear systems with monotonic input nonlinearities. In an empirical evaluation, online LSPI with prior knowledge is shown to learn much faster and more reliably than the original online LSPI. [less ▲]

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