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See detailImpact des essences sur la fertilité des sols forestiers
Carnol, Monique ULiege; Degrave, Frédéric; Weissen, Franz

in Branquart, Etienne; Paquet, Jean-Yves; Claessens, Hugues (Eds.) Journée d'étude: Gestion forestière & biodiversité. Gembloux, 23 mars 2005, résumé des interventions. (2005)

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See detailCarbon budget of a sugar beet crop
Moureaux, Christine ULiege; Vilret, Amélie; Delvoye, Sébastien et al

in Abstracts and proceedings - 68th Congress 2005 (2005)

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See detailGaseous emissions in the raising of weaned pigs on fully slatted floor or on sawdust-based deep litter
Nicks, Baudouin ULiege; Laitat, Martine ULiege; Farnir, Frédéric ULiege et al

in Proceedings of the International workshop on Green Pork Production (2005)

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See detailAccuracy of the nitrate sampling scheme, proposed in Walloon area, for grazed grasslands
Hennart, Sylvain; Stilmant, Didier ULiege; Lambert, Richard et al

in Schröder, J. J.; Neetson, J. J. (Eds.) N management in agrosystems in relation to the Water Framework Directive (2005)

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See detailField scale N-management : soil and plant diagnostic tools applied within the Agricultural Surface Survey
Courtois, Pierre; Destain, Jean-Pierre ULiege; Renard, Sophie et al

in Schröder, J. J.; Neetson, J. J. (Eds.) N management in agrosystems in relation to the Water Framework Directive (2005)

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See detailImplementation of the Nitrate Directive in Belgium : the Agricultural Surface Survey
Vandenberghe, Christophe ULiege; Bontemps, Pierre-Yves; Lambert, Richard et al

in Schröder, J. J.; Neeteson (Eds.) N management in agrosystems in relation to the Water Framework Directive (2005)

Detailed reference viewed: 41 (12 ULiège)
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See detailPlastic Analysis of Concrete Structures Subjected to Fire
Franssen, Jean-Marc ULiege

in Gambarova, P. G. (Ed.) Proceedings of the Workshop "Pire Design of Concrete Structures: What now? What next?" (2005)

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See detailFire resistance of unrestrained welded steel beams submitted to lateral-torsional buckling
Vila Real, P. M. M.; Lopes, N.; Simoes da Silva, L. et al

in Hoffmeister, B.; Hechler, O. (Eds.) Proceedings of the 4th European Conference on Steel and Composite Structures (EUROSTEEL 2005) (2005)

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See detailProgressive load redistribution in continuous concrete beams and slabs under fire conditions
Dotreppe, Jean-Claude ULiege; Gens, F.; Franssen, Jean-Marc ULiege

in Proceedings of the fib Symposium "Keep concrete attractive" Vol.2 (2005)

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See detailDesign of Structural Fire Protection and Fire Protection Systems
Franssen, Jean-Marc ULiege

in Hosser, Dietmar (Ed.) Proceedings of the International Fire protection Symposium (2005)

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See detailEffect of localised fires on continuous steel beams
Franssen, Jean-Marc ULiege; Gens, F.; Dotreppe, Jean-Claude ULiege

in Hoffmeister, B.; Hechler, O. (Eds.) Proceedings of the 4th European Conference on Steel and Composite Structures (EUROSTEEL 2005) (2005)

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See detailFire safety engineering analysis of a super market structure composed of cambered cellular beams
Franssen, Jean-Marc ULiege; Majkut, S.; Cajot, L.-G. et al

in Hoffmeister, B.; Hechler, O. (Eds.) Proceedings of the 4th European Conference on Steel and Composite Structures (EUROSTEEL 2005) (2005)

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See detailRandom-incidence scattering coefficients of infinite sine-shaped surfaces
Embrechts, Jean-Jacques ULiege

in Proceedings of the 4th Forum Acusticum Congress (2005)

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See detailActive noise control in frontages of buildings
Tamaz, Patrick; Caule, Patrice; Nemerlin, Jean ULiege et al

in Proceedings of SPS-DARTS 2005 (2005)

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See detailComputation of Directional Impulse Responses in Rooms for Better Auralization
Embrechts, Jean-Jacques ULiege; Werner, Nicolas; Lesoinne, Stéphane ULiege

in Proceedings of the 118th Convention of the Audio Engineering Society (2005)

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See detailOn the characterization of concrete surface roughness and its relation to adhesion in repair systems
Garbacz, Andrzej; Kostana, Katarzyna; Courard, Luc ULiege

in Chaponski, J.; Chraponski; Cwajna, J. (Eds.) et al Stereology and Image Analysis (2005)

The aim of this work is the analysis of an effect of concrete surface geometry on adhesion of repair systems. Several types of surface preparation techniques are selected and analysed via different ... [more ▼]

The aim of this work is the analysis of an effect of concrete surface geometry on adhesion of repair systems. Several types of surface preparation techniques are selected and analysed via different systems: laser profilometry, mechanical profilometry, microscopy and "sand" patch test method. [less ▲]

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See detailIn vitro release of salbutamol acetonide from solid lipid nanoparticles
Jaspart, Séverine ULiege; Bodson, Cédric; Bertholet, Pascal et al

in Proceedings of 1st Pharmaceutical Sciences Fair and Exhibition (2005)

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See detailHigh-order high-frequency integral equations
Bruno, O.; Geuzaine, Christophe ULiege

in Proceedings of the 7th International Conference on Mathematical and Numerical Aspects of Waves, Waves 2005 (2005)

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See detailSemi-solid forming of steels
Rassili, A.; Geuzaine, Christophe ULiege; Dular, Patrick ULiege et al

in Proceedings of the 8th Esaform Conference on Material Forming (2005)

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See detailSemi-solid metal forming
Rassili, A.; Geuzaine, Christophe ULiege; Dular, Patrick ULiege et al

in Proceedings of the Computational Methods for Coupled Problems in Science and Enginieering Conference (2005)

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See detailTempérature et transport : quels effets sur la qualité technologique et hygiénique ?
Clinquart, Antoine ULiege

in WAVFH-WB (Ed.) Après-midi d'étude de la section Wallonie-Bruxelles de la World Association of Veterinary Food Hygienists "Le Transport, un sujet chaud" (2005)

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See detailEvaluation of the pulmonary inflammation and bronchial hyperresponsiveness in healthy mice induced by inhaled cyclodextrins
Guéders, Maud ULiege; Bertholet, P.; Barillaro, Valery et al

in Journal of inclusion Phenomena and Macrocyclic Chesmistry (2005)

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See detailComparaison de quatre variétés de blé d’hiver : effets de différents critères physico-chimiques sur les performances zootechniques du poulet
Piron, Fabien ULiege; Beckers, Yves ULiege; Ounissi, Kamel et al

in Journées de la Recherche Avicole (2005)

This study investigated the influence of some physic and chemical parameters of wheat grains on the performances of broilers (Ross). Four varieties (Agami, Corvus, Folio et Meunier) were grown on a single ... [more ▼]

This study investigated the influence of some physic and chemical parameters of wheat grains on the performances of broilers (Ross). Four varieties (Agami, Corvus, Folio et Meunier) were grown on a single site in harvest year 2003. This cultivar samples are ground and included in starter (57.6 % of wheat) and growth diets (61.4 % of wheat). Broiler’s intake was not influenced (p > 0.05, n = 24) by varieties. But weights of chicken (38 days) were (p < 0.05, n = 516) higher with Folio and Meunier. Feed conversion ratios cumulated between day 3 to day 38 (FCR) were (p < 0.05, n = 24) lower with Folio and Meunier than with Corvus and Agami. Hardness was negatively correlated with FCR (r = - 0.60, p < 0.01, n = 4). The correlation between crude proteins and FCR was equal to - 0.70 (p < 0.001, n = 4). FCR was negatively correlated to Zeleny’s index (r = - 0.62, p < 0.01, n = 4), wet (r = - 0.66, p < 0.001, n = 4) and dry gluten (r = - 0.51, p < 0.05, n = 4). FCR was negatively correlated to ratio of large (> 1800 μm) particles in ground wheat (r = - 0.48, p < 0.05, n = 4) and also related to small (< 707 μm) material (r = 0.53, p < 0.01, n = 4). Surprisingly, FCR was negatively correlated with amounts of soluble Non-Starch Polysaccharides and soluble Arabinoxylans. The same pathway was observed with in vitro viscosity data. Intestinal viscosities were not related (p > 0.05, n = 24) to broiler’s performances. [less ▲]

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See detailRecent Evolution of atmospheric OCS above the Jungfraujoch station : implications for the stratospheric aerosol layer.
Mahieu, Emmanuel ULiege; Zander, Rodolphe ULiege; Demoulin, Philippe ULiege et al

in Proceedings of the Atmospheric Spectroscopy Applications. (2005)

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See detailRobust Design of a Fan Blade by Coupling Multi Objective Genetic Optimization and Flow Parameterization
Kelner, Vincent ULiege; Grondin, Gilles; Léonard, Olivier ULiege et al

in Proccedings od the International Congress on Fluid Dynamics Applications in Ground Transportation (2005)

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See detailConnection between some dicoveries of women in science and the underlying current technologies : an exhibition at Liège
Jaminon, Martine ULiege; Vercheval, Catherine

in Strabanova, Sona; Stamhuis, Ida; Mojsejova, Katerina (Eds.) Woman Scolars and Institutions (2005)

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See detailAnalysis of canine and feline uroliths in the Benelux. A retrospective study 1994-2005
de Lovinfosse, T.; Detilleux, Johann ULiege; Picavet, P. et al

in Proceedings of the 9th Congress ESVCN (2005)

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See detailHeracleia Salbakè, centre médical au Haut-Empire
Nissen, Cécile ULiege

in Sari, Nil (Ed.) Proceedings of the 38th International Congress on the History of Medicine : Istanbul, 1st-6th September 2002 (2005)

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See detailStructures in Fire: yesterday, today and tomorrow
Franssen, Jean-Marc ULiege

in Gottluk, D T; Lattimer, B Y (Eds.) Fire Safety Science - Proceedings of the Eighth International Symposium (2005)

This paper presents the author's view on various methods used for the evaluation of the behaviour of structures submitted to fire, namely experimental testing, tabulated data, simple calculation methods ... [more ▼]

This paper presents the author's view on various methods used for the evaluation of the behaviour of structures submitted to fire, namely experimental testing, tabulated data, simple calculation methods and numerical simulation. The evolution during the last decades, and the pertinence of these methods in different situations are discussed. The challenges that scientists and researchers are facing now and the problems that will need be addressed in the future are presented. [less ▲]

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See detailWater intake is influenced by feeding frequency and energy allowance in cats
Kirschvink, N.; Lhoest, E.; Leemans, J. et al

in Proceedings of the 9th Congress ESVCN (2005)

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See detailA new automatic video multitracking system able to follow a large school
Delcourt, Johann ULiege; Becco, Christophe ULiege; Vandewalle, Nicolas ULiege et al

in Noldus, L.P.P.J.; Grieco, F.; Loijens, L. W. S. (Eds.) et al Proceedings of Measuring Behavior 2005 (2005)

The study of shoaling behaviours is tackled by scientists by three approaches: the field, laboratory and computer modelling approach. The field studies are complicated and permit rarely an analysis of ... [more ▼]

The study of shoaling behaviours is tackled by scientists by three approaches: the field, laboratory and computer modelling approach. The field studies are complicated and permit rarely an analysis of individual positions. The third approach, consisting of development of mathematic models, is artificial. It requires a comparison with empiric results to validate and to determine the explications’ degree of each model. Thanks to the developments of digital imaging techniques, the laboratory studies on fish are able to measure the behavioural parameters with precision, impossible to realize with manual recording. Multitracking systems are rare and of recent development. These are insufficient to study the real size of shoals, often composed of hundreds of .shes. We have developed a new system of multitracking thanks to collaboration with the G.R.A.S.P. The G.R.A.S.P. has before realised other multitracking systems to follow some hundreds physical objects. Our video multitracking system is able to detect and to track more than a hundred unmarked fishes by gray scaling technique during some minutes. It permits an analysis as well at the group level as at the individual level. The multitraking program is able to attribute a number at each fish and to follow each one during the whole duration of the track. Our system permits the analysis of the movement of each individual, even if the trajectories of two fishes cross each other. It is possible thanks to the theoretical estimation of trajectory of each fish, compared with the real trajectory (analysis with feedback). The human eye is always necessary to detect the errors in identification but reediting is possible. However, if the fishes don’t move too rapidly, a rate of 25 images /s gives very good results, without too much visual expertise from the experimenter. If the fishes are too fast (i.e. escape response), it is better to use a high speed camera. [less ▲]

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See detailHow vets and veterinary students feed their own dogs
Lhoest, E.; Detilleux, Johann ULiege; Vandenheede, M. et al

in Proceedings of the 9th Congress ESVCN (2005)

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See detailPremières évaluation d’un Bureau Virtuel pour un processus de conception augmenté
Safin, Stéphane ULiege; Boulanger, Christelle; Leclercq, Pierre ULiege

in Proceedings of IHM07 : Conférence francophone sur l'interaction homme-machine. (2005)

Many CAD tools already allow to create and manipulate directly ideas in a digital way. However, designers still use the pen and paper technique during the early design phase of their projects. Indeed ... [more ▼]

Many CAD tools already allow to create and manipulate directly ideas in a digital way. However, designers still use the pen and paper technique during the early design phase of their projects. Indeed, existing CAD tools con-straint the creative work. There is a need for a sponta-neous human computer interaction in design computing. In order to answer to this need, we develop an integrated aided design tool based on an Virtual Desktop. The de-signer sits in front of a classical desktop where s/he can create and manipulate drawings and generated models. The paper relates the observations made from an ex-periment about the use of the Virtual Desktop by a de-signer. That experiment demonstrates that the immersive aspect of our system interface modifies the relation exist-ing between the designer and his/her model and, this way, its generates a new type of augmented interaction. [less ▲]

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See detailA Virtual Desktop's First evaluation for an Augmented Design Process
Safin, Stéphane ULiege; Boulanger, Christelle; Leclercq, Pierre ULiege

in Proceedings of Virtual Concept 2005. (2005)

Many CAD tools already allow to design and directly manipulate ideas in a digital way. However, designers still use pen and paper during the early design phase of their projects. Indeed, existing CAD ... [more ▼]

Many CAD tools already allow to design and directly manipulate ideas in a digital way. However, designers still use pen and paper during the early design phase of their projects. Indeed, existing CAD tools constraint creative work. There is a need for a spontaneous human computer interaction in design computing. In order to answer to this need, we develop an integrated aided design tool based on a Virtual Desktop. The designer sits in front of a classical desk where s/he can design and manipulate drawings and generated models. This paper describes the observations made during experiment about Virtual Desktop’s use by a designer. The experiment demonstrates that the immersive aspect of our system interface modifies the relationship between the designer and his/her model and, by the way, how this relation generates a new type of augmented interaction. [less ▲]

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See detailPortable Tool for Finalizing Freehand Drawings : Activity Analysis and Design Requirements
Boulanger, Christelle; Decortis, Françoise ULiege; Safin, Stéphane ULiege

in Proceedings of EACE 2005 : Annual Conference of the European association of Cognitive Ergonomics (2005)

Within a multidisciplinary team of designers, architects and mechanical engineers, and ergonomists, we participate in a research project (ICC) in design and creative interface. This paper describes a ... [more ▼]

Within a multidisciplinary team of designers, architects and mechanical engineers, and ergonomists, we participate in a research project (ICC) in design and creative interface. This paper describes a participative and iterative approach and reviews the results of field studies involved in the design of a portable tool for finalizing freehand drawings. The results are discussed in terms of Activity Theory and its contribution to this field. [less ▲]

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See detailTwo competing linear models for flexible robots: Comparison, experimental validation, and refinement
Krauss, Ryan; Bruls, Olivier ULiege; Book, Wayne J

in Proceedings of the American Control Conference (2005)

The modeling of a rigid robot attached to a flexible base is addressed in this work. Two approaches are compared: the Finite Element Method (FEM) and the Transfer Matrix Method (TMM). Initially, idealized ... [more ▼]

The modeling of a rigid robot attached to a flexible base is addressed in this work. Two approaches are compared: the Finite Element Method (FEM) and the Transfer Matrix Method (TMM). Initially, idealized models of the hydraulic actuators are used that do not include flexible effects in the joints. Those models greatly overestimate the second natural frequency of the system, therefore the identification of local flexibilities in the joints is pursued to improve the results. The very good agreement between both approaches, and their ability to represent the physical system (once joint flexibility is included), confirms their efficiency and relevance in this context. [less ▲]

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See detailBiomedical image classification with random subwindows and decision trees
Marée, Raphaël ULiege; Geurts, Pierre ULiege; Piater, Justus ULiege et al

in Computer Vision for Biomedical Image Applications (2005)

In this paper, we address a problem of biomedical image classification that involves the automatic classification of x-ray images in 57 predefined classes with large intra-class variability. To achieve ... [more ▼]

In this paper, we address a problem of biomedical image classification that involves the automatic classification of x-ray images in 57 predefined classes with large intra-class variability. To achieve that goal, we apply and slightly adapt a recent generic method for image classification based on ensemble of decision trees and random subwindows. We obtain classification results close to the state of the art on a publicly available database of 10000 x-ray images. We also provide some clues to interpret the classification of each image in terms of subwindow relevance. [less ▲]

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See detailVariations des teneurs en sélénium dans les aliments pour bovins et statut en sélénium chez l'animal
Cabaraux, Jean-François ULiege; Schoonheere, Nicolas ULiege; Hornick, Jean-Luc ULiege et al

in 12ièmes Rencontres autour des Recherches sur les Ruminants (2005)

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See detailSelenium status around peripartum in beef cows and claves offered grass silage and barley produced with selenium enriched fertilizers
Cabaraux, Jean-François ULiege; Hornick, Jean-Luc ULiege; Schoonheere, Nicolas ULiege et al

in Book of absracts of the 56th Annual Meeting of the European Association for Animal Production (2005)

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See detailClosed-loop model of the cardiovascular system including ventricular interaction and valve dynamics: application to pulmonary embolism
Desaive, Thomas ULiege; Dutron, S.; Lambermont, Bernard ULiege et al

in 12th International Conference on Biomedical Engineering (2005)

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See detailUne langue de référence pour développer le plurilinguisme
Lucchini, Silvia ULiege; Flamini, Fiorella

in Witte, E.; Van Mensel, L.; Pierrard, M. (Eds.) et al Language, Attitudes and Education in Multilingual Cities (2005)

Detailed reference viewed: 43 (2 ULiège)
See detailProlactinomas
Ciccarelli, A.; Beckers, Albert ULiege

in 14th EFES Postgraduate Course in Clinical Endocrinology - Abstract book (2005)

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See detailDiagnosis of active acromegaly : is it time to amend the consensus of opinions?
Beckers, Albert ULiege; Daly, Adrian ULiege; Petrossians, Patrick ULiege et al

in International Novartis Workshop - somatostatin and its natural and synthetic analogues - Update from basic to clinical aspects - Abstract book (2005)

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See detailA multicenter collaborative study to measure the prevalence of pituitary disease : methodology and preliminary findings
Daly, Adrian ULiege; Petrossians, Patrick ULiege; Murat, A. et al

in 9th International Pituitary Congress - Abstract book (2005)

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See detailPharmacokinetic study of a new testosteron in-Adhesive Matrix patch applied every two days to hypogonadal men
Raynaud, J. P.; Aumonier, C.; Gualano, V. et al

in The Endocrine society ENDO 2005 - Abstract book (2005)

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See detailIntégrité structurale sous actions exceptionnelles
Demonceau, Jean-François ULiege; Luu, H.; Jaspart, Jean-Pierre ULiege

in Actes du Colloque International: L'acier dans la construction 2ème édition (2005)

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See detail“ Construire l’Histoire” : un manuel scolaire pour demain ?
Jadoulle, Jean-Louis ULiege

in Jadoulle, Jean-Louis (Ed.) Les manuels scolaires d’histoire. Passé, présent, avenir (2005)

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See detailTracking by cluster analysis of feature points and multiple particle filters
Du, Wei ULiege; Piater, Justus ULiege

in Pattern Recognition and Image Analysis (2005)

A moving target produces a coherent cluster of feature points in the image plane. This motivates our novel method of tracking multiple targets by cluster analysis of feature points and Multiple particle ... [more ▼]

A moving target produces a coherent cluster of feature points in the image plane. This motivates our novel method of tracking multiple targets by cluster analysis of feature points and Multiple particle filters. First, feature points are detected by a Harris corner detector and tracked by a Lucas-Kanade tracker. Clusters of moving targets are then initialized by grouping spatially co-located points with similar motion using the EM algorithm. Due to the non-Gaussian distribution of the points in a cluster and the multi-modality resulting from multiple targets, multiple particle filters are applied to track all the clusters simultaneously: one particle filter is started for one cluster. The proposed method is well Suited for the typical video surveillance configuration where the cameras are still and targets of interest appear relatively small in the image. We demonstrate the effectiveness of our method on different PETS datasets. [less ▲]

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See detailUnsupervised learning of visual feature hierarchies
Scalzo, Fabien; Piater, Justus ULiege

in Machine Learning and Data Mining in Pattern Recognition (2005)

We propose an unsupervised, probabilistic method for learning visual feature hierarchies. Starting from local, low-level features computed at interest point locations, the method combines these primitives ... [more ▼]

We propose an unsupervised, probabilistic method for learning visual feature hierarchies. Starting from local, low-level features computed at interest point locations, the method combines these primitives into high-level abstractions. Our appearance-based learning method uses local statistical analysis between features and Expectation-Maximization to identify and code spatial correlations. Spatial correlation is asserted when two features tend to occur at the same relative position of each other. This learning scheme results in a graphical model that constitutes a probabilistic representation of a flexible visual feature hierarchy. For feature detection, evidence is propagated using Belief Propagation. Each message is represented by a Gaussian mixture where each component represents a possible location of the feature. In experiments, the proposed approach demonstrates efficient learning and robust detection of object models in the presence of clutter and occlusion and under view point changes. [less ▲]

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See detailStudy of liquid fraction evolution of semi-solid steels for thixoforming
Lecomte-Beckers, Jacqueline ULiege; Rassili, Ahmed ULiege; Carton, Marc ULiege et al

in Proceedings of the 8th ESAFORM Conference on Material Forming (2005)

Major challenge for semi-solid processing includes broadening the range of alloys that can be successfully thixoformed and developing alloys specifically for thixoforming. One important parameter is ... [more ▼]

Major challenge for semi-solid processing includes broadening the range of alloys that can be successfully thixoformed and developing alloys specifically for thixoforming. One important parameter is appropriate solidus-liquidus interval. The wider the solidification interval, the wider the processing window. This study is related to the experimental determination of this critical parameter on eight different steel compositions. This parameter was obtained using Differential Scanning Calorimetry. This technique allows to obtain the solid fraction versus temperature. [less ▲]

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See detailL’épisode de Clarisse et Esmerée dans le Roman en prose de Guillaume d'Orange
Henrard, Nadine ULiege

in Cazanave, Caroline (Ed.) Actes du Colloque "L'épique médiéval et le mélange des genres”, Besançon, 3-5 octobre 2002 (2005)

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See detailSimulation of Complex Crashworthiness Problems by Using a Combined Implicit/Explicit Time Integration.
Noels, Ludovic ULiege; Stainier, Laurent ULiege; Ponthot, Jean-Philippe ULiege

(2005)

In this work we will combine the ®-generalized explicit time integration scheme with the Energy-Dissipating Momentum-Conserving (EDMC) implicit time-integration scheme.

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See detailDevelopment of edumetrical indices for the analysis of the spectral quality of higher education standardized tests
Gilles, Jean-Luc ULiege

in 11th Biennal Conference of the European Association for Research on Learning and Instruction - Multiple Perspectives on Effective Learning Enviroments - Abstracts (2005)

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See detailImproving spatial information extraction for local and regional authorities using Very-High-Resolution data - geometrical aspects
Devriendt, Dennis; Goossens, Rudi; Taillieu, Kristof et al

in Oluić, Marinko (Ed.) New Strategies for European Remote Sensing (2005)

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of ... [more ▼]

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of value-added products that fulfill some of the actual information needs, as expressed by Belgian authorities at the local and at the regional level. One of the technical research modules is focussing on the geometrical aspects of VHR data processing. The geometric precision of VHR data (QuickBird, IKONOS) is systematically evaluated, more specific for an urban and suburban environment using the GCP information obtained by GPS measurements. The 2D-georeferenced images is compared with ortho-rectified images in terms of their geometric accuracy. This will provide useful information about the limitations of 2Dcorrected data, and the necessity of acquiring ortho-rectified data, for different kinds of applications in each of the studied areas. The oblique viewing angle of images produced by VHR sensors like IKONOS and QuickBird has a strong influence on the geometrical displacement of objects, and on the occurrence of hidden areas in the image. The degree of displacement and the percentage of hidden areas are determined by the interaction between viewing angle, position of the sun, object height, and terrain characteristics (slope, aspect). In other words, the range of viewing angles that can be considered acceptable for purchasing an image of a certain area will depend on the morphological characteristics of the area. To study the interaction between all parameters involved, a theoretical model is implemented. First, the model is used to systematically study the impact of viewing angle on object displacement, shadow length and size of hidden areas in an image, by simultaneously varying the different morphological parameters. Next, the impact of viewing angle on the geometry of the image is simulated using the theoretical model and a DSM from aerial photography. The geometrical accuracy of a DSM from VHR data is compared with the accuracy of the DSM, derived from aerial photography at scales of 1:12000 and 1:4000). The satellite-derived DSM is used for ortho-rectification of VHR imagery. The accuracy of the ortho-rectified images is compared with ortho-rectifications of the same images, based on the aerial photo DSM. [less ▲]

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See detailLong range seasonal movements of northern pike (Esox lucius L.) in the barbel zone of the River Ourthe (River Meuse basin, Belgium).
Ovidio, Michaël ULiege

in Aquatic telemetry: advances and applications (2005)

In order to study the annual activity cycle and reproductive ecology of northern pike (Esox lucius L.) in the River Ourthe (Belgian Ardenne), 6 fish (579-742mm FL, 1605-4090g, 2 females and 4 males) were ... [more ▼]

In order to study the annual activity cycle and reproductive ecology of northern pike (Esox lucius L.) in the River Ourthe (Belgian Ardenne), 6 fish (579-742mm FL, 1605-4090g, 2 females and 4 males) were captured by electric fishing in November 2000 and January 2001. They were surgically implanted with a radio-transmitter and tracked for 149 to 349 days in a 30-km river stretch. During the pre-spawning period in winter, most movements were between distinct holding areas spaced from 40 to 550 m. All the pike began the upstream spawning migration between 8 February and 30 March 2001, when the mean water temperature varied from 6.7°C to 8.7 °C and the water flow from 52 to 199 m3s-1. The six pike travelled upstream, over distances ranging from 0.75 km to 15.7 km to reach their potential spawning sites. Pike arrived on their potential spawning sites between the 13 February and the 02 April 2001 and remained there from 5 to 25 days when the daily mean water temperature ranged from 2.9 to 10.0 °C. The six pike moved downstream after spawning and showed similar behaviour to those observed prior to spawning, but the distances between holding areas were more extended than during the winter pre-spawning period. When considering the entire tracking period, the longitudinal extension of the activity domains ranged 1 421 to 24 798 m (mean 12,050 m). This exploratory study provided original observations on northern pike movements in a barbel zone of the River Meuse basin. Results contrasted with the widely established view of pike being a sedentary predator and provides data on its behaviour throughout the annual cycle. [less ▲]

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See detailLa langue comme facteur d'intégration ou d'exclusion. L'Athènes du Ve s. et la Rome de Cicéron
Rochette, Bruno ULiege

in Angelli Bertinelli, Maria Gabriella (Ed.) Serta antiqua et mediaevalia VII. Il cittadino, lo straniero, Il barbaro, fra integratione ed emarginazione nell'antichità. Atti del I° Incontro internazionale di Storia Antica (2005)

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See detailLes impôts sur les revenus : le couple se forme
Romer, Adeline ULiege

in Parent, Xavier; Schreiber, Laurent; Culot, Philippe (Eds.) et al Situations de fait ou de droit en droit fiscal belge de la famille (2005)

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See detailEffect of an oral antioxidant supplementation enriched in (n-3) fatty acids on erythrocyte membrane fluidity in horses.
De Moffarts, Brieuc; Portier, K.; Kirschvink, Nathalie et al

in Proceedings: Congrès de médecine et de chirurgie équine, Genève 2005 (2005)

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See detailUpper airway function and dysfunction
Art, Tatiana ULiege; Lekeux, Pierre ULiege

in 9e Congrès de Médecine et Chirurgie Equine (2005)

The main airway function is the conduction of thé air from the amblent air to the gas exchange regions of the lung and conversely. Upper airway include nasal cavities, pharynx, larynx and extrathoracic ... [more ▼]

The main airway function is the conduction of thé air from the amblent air to the gas exchange regions of the lung and conversely. Upper airway include nasal cavities, pharynx, larynx and extrathoracic trachea. These structures, supported by bones, cartilages or muscles, must be as permeable as possible to the air. flow. If for structural or functional reasons, a permanent or dynamic narrowing occurs along the airway, the resulting bottleneck will increase the resistance to airflow, thus impair ventilation and generate abnormal respiratory noises, and finally decrease the exercise capacity. This paper focuses on the function and potential dysfunctions of the different parts of the upper airway in horses [less ▲]

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See detailReply to the discussion on the Report of Committee III.1 – ISSC’2003 "Ultimate Strength"
Rigo, Philippe ULiege

in 15th Int. Ship and Offshore Structures Congress (2005)

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See detailDiscussion on the Report of Committee IV.2 – ISSC’2003 "Design Methods"
Rigo, Philippe ULiege

in 15th Int. Ship and Offshore Structures Congress (2005)

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See detailDiscussion on Paper D04 “Ultimate limit state design technology for aluminium multi-hull ship structures, SNAME Transactions, Vol.113, (2005)”
Rigo, Philippe ULiege; Richir, Thomas

in Ultimate limit state design technology for aluminium multi-hull ship structures, SNAME Transactions, Vol.113 (2005)

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See detailA rapid estimation of nitrogen bound to neutral detergent fibre in forages by near infrared reflectance spectroscopy.
Bindelle, Jérôme ULiege; Sinnaeve, Georges; Dardenne, Pierre et al

in XXth International Grassland Congress: Offered papers (2005)

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See detailAdministration par inhalation de marbofloxacine chez le cheval: effets sur la fonction respiratoire - concentrations obtenues dans le liquide pulmonaire par rapport ) la voie IV
Art, Tatiana ULiege; De Moffarts, Brieuc; Van Erck, Emmanuelle et al

in Proceedings : Journées AVEF (2005)

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See detailDecision Trees and Random Subwindows for Object Recognition
Marée, Raphaël ULiege; Geurts, Pierre ULiege; Piater, Justus ULiege et al

in ICML workshop on Machine Learning Techniques for Processing Multimedia Content (MLMM2005) (2005)

In this paper, we compare five tree-based machine learning methods within a recent generic image classification framework based on random extraction and classification of subwindows. We evaluate them on ... [more ▼]

In this paper, we compare five tree-based machine learning methods within a recent generic image classification framework based on random extraction and classification of subwindows. We evaluate them on three publicly available object recognition datasets (COIL-100, ETH-80, and ZuBuD). Our comparison shows that this general and conceptually simple framework yields good results when combined with ensemble of decision trees, especially when using Tree Boosting or Extra-Trees. The latter is also particularly attractive in terms of computational efficiency. [less ▲]

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See detailRandom Subwindows for Robust Image Classification
Marée, Raphaël ULiege; Geurts, Pierre ULiege; Piater, Justus ULiege et al

in Proceedings of the IEEE International Conference on Computer Vision and Pattern Recognition (CVPR 2005) (2005)

We present a novel, generic image classification method based on a recent machine learning algorithm (ensembles of extremely randomized decision trees). Images are classified using randomly extracted ... [more ▼]

We present a novel, generic image classification method based on a recent machine learning algorithm (ensembles of extremely randomized decision trees). Images are classified using randomly extracted subwindows that are suitably normalized to yield robustness to certain image transformations. Our method is evaluated on four very different, publicly available datasets (COIL-100, ZuBuD, ETH-80, WANG). Our results show that our automatic approach is generic and robust to illumination, scale, and viewpoint changes. An extension of the method is proposed to improve its robustness with respect to rotation changes. [less ▲]

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See detailAdvanced particle characterization for improved understanding of cold spray coating quality
Pirard, Eric ULiege; Campana, Florent; Janssen, Jean-Pierre

in Pawlowski, Lech (Ed.) 2e Rencontres Int. Projection Thermique (2005)

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See detailRobustness of Planar Shape Descriptors of Particles
Pirard, Eric ULiege; Dislaire, Godefroid

in Chung, C.-F. (Ed.) Proceedings Mathematical Geology Congress (2005)

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See detailModelling of semi-continuous casting of cupro-nickel alloys
Pascon, Frédéric ULiege; Pecquet, Etienne ULiege; Zhang, Lihong ULiege et al

in Papadrakakis, M.; Onate, E.; Schrefler, B. (Eds.) Proceedings of the International Conference on Computational Methods for Coupled Problems in Science and Engineering (2005)

This research developed at University of Liege aims to optimize the complete semi-continuous casting process at LBP Company, a producer of copper-nickel alloys (or cupro-nickels). The process consists in ... [more ▼]

This research developed at University of Liege aims to optimize the complete semi-continuous casting process at LBP Company, a producer of copper-nickel alloys (or cupro-nickels). The process consists in vertical casting of 7m long ingots. Some problems recurrently occur during casting process: formation of oscillations (wave length of about 500 mm), unsuitable concave cross-sections or internal cracks. In order to reduce the occurrence of such defects and to better understand their formation, we have been asked to develop a finite element model. The research focuses on two main topics: identification of material properties through laboratory tests and literature survey and the development of the numerical tool. The laboratory tests provide thermal and mechanical properties of the ingot and the mould, as well as heat transfer coefficients between the ingot and its surroundings (mould, air and water). These parameters are required for the numerical simulations of the process. In the second part of the research, numerical calculations have been performed using finite element method. Two types of 2D models have already been studied: horizontal slice and vertical slice. This first choice has been guided by the high coupling between thermal and mechanical aspects of the problem, leading to highly complex systems of equations and subsequent long CPU times. However, due to the limitations of such 2D models, a 3D formulation has then been considered and it is still in progress. [less ▲]

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See detailOn multi-area control in electric power systems
Zima, Marek; Ernst, Damien ULiege

in Proceedings of the 15th Power System Computation Conference (PSCC 2005) (2005)

In this paper we study the concept of electric power system control, when the responsibility for controlling the entire system is shared by agents controlling their assigned areas. Within this framework ... [more ▼]

In this paper we study the concept of electric power system control, when the responsibility for controlling the entire system is shared by agents controlling their assigned areas. Within this framework, we suggest to study the dynamics created by the interactions of agents. In particular, we discuss the relation that exists between the information available to the different agents and their optimisation objective, and the performance of the overall power system. Simulations results, carried out on a 39-node power system voltage control problem, are provided and analyzed. They highlight, among others, the sub-optimal performance level attained by the system when the different agents exchange information about their area dynamics without sharing a common control objective. [less ▲]

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See detailApplication of an advanced transient stability assessment and control method to a realistic power system
Cirio, D.; Lucarella, D.; Vimercati, G. et al

in Proceedings of the 15th Power System Computation Conference (PSCC 2005) (2005)

The paper presents a technical overview of a large research project on Dynamic Security Assessment (DSA) supported by EU. Transient Stability Assessment and Control, which was one of the main goals of the ... [more ▼]

The paper presents a technical overview of a large research project on Dynamic Security Assessment (DSA) supported by EU. Transient Stability Assessment and Control, which was one of the main goals of the project, is taken into consideration by presenting the fundamental theoretical methodology and possible applications. A specific prototype installation for a realistic power system is then reported by presenting and commenting some of the obtained results. [less ▲]

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See detailA comparison of Nash equilibria analysis and agent-based modelling for power markets
Krause, Thilo; Andersson, Goran; Ernst, Damien ULiege et al

in Proceedings of the 15th Power System Computation Conference (PSCC 2005) (2005)

In this paper we compare Nash equilibria analysis and agent-based modelling for assessing the market dynamics of network-constrained pool markets. Power suppliers submit their bids to the market place in ... [more ▼]

In this paper we compare Nash equilibria analysis and agent-based modelling for assessing the market dynamics of network-constrained pool markets. Power suppliers submit their bids to the market place in order to maximize their payoffs, where we apply reinforcement learning as a behavioral agent model. The market clearing mechanism is based on the locational marginal pricing scheme. Simulations are carried out on a benchmark power system.We show how the evolution of the agent-based approach relates to the existence of a unique Nash equilibrium or multiple equilibria in the system. Additionally, the parameter sensitivity of the results is discussed. [less ▲]

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See detailNew developments in the application of automatic learning to power system control
Wehenkel, Louis ULiege; Glavic, Mevludin; Ernst, Damien ULiege

in Proceedings of the 15th Power System Computation Conference (PSCC 2005) (2005)

In this paper we present the basic principles of supervised learning and reinforcement learning as two complementary frameworks to design control laws or decision policies within the context of power ... [more ▼]

In this paper we present the basic principles of supervised learning and reinforcement learning as two complementary frameworks to design control laws or decision policies within the context of power system control. We also review recent developments in the realm of automatic learning methods and discuss their applicability to power system decision and control problems. Simulation results illustrating the potentials of the recently introduced fitted Q iteration learning algorithm in controlling a TCSC device aimed to damp electro-mechanical oscillations in a synthetic 4-machine system, are included in the paper. [less ▲]

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See detailFunction and dysfunction of the lower airways
Lekeux, Pierre ULiege; Art, Tatiana ULiege

in Proceedings: 9e Congrès de médecine et chirurgie équine (2005)

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See detailLarge-scale groundwater flow and transport modeling: Methodology and application to the Meuse Basin – Belgium
Orban, Philippe ULiege; Brouyère, Serge ULiege; Corbeanu, Horatiu et al

in Bringing Groundwater Quality Research to the Watershed Scale - Proceedings of GQ2004 (2005)

To meet the requirements of the EU Water Framework Directive, an integrated water management project named PIRENE was initiated by the Walloon Region of Belgium. A partner of this project, the ... [more ▼]

To meet the requirements of the EU Water Framework Directive, an integrated water management project named PIRENE was initiated by the Walloon Region of Belgium. A partner of this project, the Hydrogeology Group of the University of Liège, is in charge of the development of a physically based transient groundwater flow and transport model for the Walloon part of the Meuse Basin (approximately 17 000 km2). To face the problems associated with this large-scale model, a general approach has been developed that combines a hydrogeological database and GIS systems to manage data. Techniques of spatial discretization have been applied that optimize the number of unknowns. For modelling groundwater flow and transport on a large scale, a new numerical approach called the Hybrid Finite Element Mixing Cell (HFEMC) has been implemented in the 3-D simulator SUFT3D. [less ▲]

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See detailEDZ in Plastic Clay
Charlier, Robert ULiege; Sillen, Xavier

in Davies, Christophe; Bernier, Frédéric (Eds.) Proceeding European Cluster Conference and Workshop Impact of the excavation disturbed or damages zone (EDZ) on the performance of radioactive waste geological repositories (2005)

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See detailPourquoi SHARE?
Perelman, Sergio ULiege; Pestieau, Pierre ULiege

in Les Finances publiques: Défis à moyen et long termes (2005)

SHARE, l’acronyme de Survey on Health, Ageing and Retirement in Europe, est sans nul doute une des plus grandes enquêtes jamais réalisées au niveau européen. Elle s'adresse à la population de 50 ans et ... [more ▼]

SHARE, l’acronyme de Survey on Health, Ageing and Retirement in Europe, est sans nul doute une des plus grandes enquêtes jamais réalisées au niveau européen. Elle s'adresse à la population de 50 ans et plus, et a l'originalité d'être internationale, multidisciplinaire et longitudinale. Ces caractéristiques font de SHARE l'instrument indispensable pour mieux comprendre la réalité du vieillissement, ses implications sociales et économiques. Il devrait à terme permettre développer des politiques économiques à la fois plus efficaces et équitables tant à l’échelon national qu’européen. [less ▲]

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See detailAnalyse inverse d’une courbe pressiométrique par algorithme génétique
Levasseur, Séverine ULiege; Malécot, Yann; Boulon, Marc et al

in Gambin, Michel; Magnan, Jean-Pierre; Mestat, Philippe (Eds.) ISP5 - Pressio 2005 - Volume 1 (2005)

Cet article est consacré à l’identification des paramètres constitutifs d’un modèle de Mohr-Coulomb à partir d’un essai pressiométrique. Pour minimiser l’écart entre le résultat de l’essai et sa ... [more ▼]

Cet article est consacré à l’identification des paramètres constitutifs d’un modèle de Mohr-Coulomb à partir d’un essai pressiométrique. Pour minimiser l’écart entre le résultat de l’essai et sa simulation numérique, une optimisation par algorithme génétique est proposée. On montre qu’il semble difficile d’identifier simultanément un module de déformation et un angle de frottement à partir d’une seule courbe pressiométrique [less ▲]

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See detailSegment and combine approach for Biological Sequence Classification
Geurts, Pierre ULiege; Blanco Cuesta, Antia; Wehenkel, Louis ULiege

in Proc. IEEE Symposium on Computational Intelligence in Bioinformatics and Computational Biology (CIBCB 2005) (2005)

This paper presents a new algorithm based on the segment and combine paradigm, for automatic classification of biological sequences. It classifies sequences by aggregating the information about their ... [more ▼]

This paper presents a new algorithm based on the segment and combine paradigm, for automatic classification of biological sequences. It classifies sequences by aggregating the information about their subsequences predicted by a classifier derived by machine learning from a random sample of training subsequences. This generic approach is combined with decision tree based ensemble methods, scalable both with respect to sample size and vocabulary size. The method is applied to three families of problems: DNA sequence recognition, splice junction detection, and gene regulon prediction. With respect to standard approaches based on n-grams, it appears competitive in terms of accuracy, flexibility, and scalability. The paper also highlights the possibility to exploit the resulting models to identify interpretable patterns specific of a given class of biological sequences. [less ▲]

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See detailUse of municipal solid waste incineration residues in concrete pavement setts
Courard, Luc ULiege; Degeimbre, Robert ULiege; Darimont, Anne ULiege et al

in Proceedings of CONMAT'05 and Midness Symposium (2005)

Valorisation of Municipal Solid Waste Incineration Residues - excluding ashes - is a positive advance in sustainable development : saving natural resources, decrease of wastes volume stored, reduction of ... [more ▼]

Valorisation of Municipal Solid Waste Incineration Residues - excluding ashes - is a positive advance in sustainable development : saving natural resources, decrease of wastes volume stored, reduction of energy consumption. If good conditions of incineration can be ensured and post-combustion treatments are realised, solid residues are in the form of granular materials usable in construction and civil engineering. Application for the fabrication of concrete pavement has been developed. Mechanical and physical performances of municipal solid waste incineration residues let us to replace a part of the granular skeleton and to obtain similar behaviour than for reference granular composition : splitting resistance, water absorption and resistance to abrasion are optimised. Leaching behaviour is also verified in order to avoid detrimental effect on the environment. Example of application is presented in “sleeping policeman” technique and durability of the structure is explained. [less ▲]

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See detailSWAP and LYRA: space weather from a small spacecraft
Defise, Jean-Marc ULiege; Lecat, Jean-Hervé ULiege; Stockman, Yvan ULiege et al

in Recent Advances in Space Technologies, 2005. RAST 2005. Proceedings of 2nd International Conference on (2005)

Two scientific instruments for Sun observations are being developed to be part of the payload of the ESA's second microsatellite, Proba-II (Project for On-board Autonomy). PROBA-2 is scheduled for launch ... [more ▼]

Two scientific instruments for Sun observations are being developed to be part of the payload of the ESA's second microsatellite, Proba-II (Project for On-board Autonomy). PROBA-2 is scheduled for launch in early 2007, on a low earth orbit. Like Proba-1, in orbit since October 2001, Proba-2 is a 100-kilogram class spacecraft. PROBA-II will demonstrate new advanced technologies on its scientific payload but also on new platform subsystems such as star tracker, digital Sun sensor, cool gas generator, solar array concentrator, Li-Ion Battery, new central processor, ... This paper is dedicated to the solar payload, comprising the Sun Watcher using Active Pixel System detector and image Processing (SWAP) and the Lyman alpha Radiometer (LYRA), both aiming at Sun observations. SWAP, the Belgian-led main instrument, will continuously provide detailed images of the solar atmosphere, by the light of extreme ultraviolet rays, at 17.4 nm, completely absorbed by the terrestrial atmosphere. SWAP will perform as an operational solar monitoring tool for space weather forecasting while it will also demonstrate new technological solutions: CMOS-APS detector, new off-axis telescope design, athermal structure, ... LYRA (Lyman-alpha Radiometer) is a small compact solar VUV radiometer. This instrument is designed, manufactured and calibrated by a Belgian-Swiss-German consortium. It will monitor the solar flux in four UV passbands. The spectral channels have been carefutly selected for their relevance io space weather, solar physics and aeronomy, ranging from 1 nm to 220 nm. On the technological side, LYRA will benefit from the pioneering UV detectors program using diamond technology. The LYRA data will produce valuable solar monitoring information, for operational space westher nowcasting and research. This paper will detail the instrument concepts and their preparation for delivery to the platform. [less ▲]

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See detailOptimisation of hydroelectric power stations operations with WOLF package
Erpicum, Sébastien ULiege; Archambeau, Pierre ULiege; Dewals, Benjamin ULiege et al

in Repp, K.; Westeren, T.; Sandlund, O. T. (Eds.) et al Proceedings of the 5th International Conference on Hydropower - The backbone of sustainable energy supply (2005)

For years, original free-surface flow solvers have been developed and continuously improved by the Laboratory of Applied Hydrodynamics and Hydraulic Constructions (HACH) at the University of Liège. The ... [more ▼]

For years, original free-surface flow solvers have been developed and continuously improved by the Laboratory of Applied Hydrodynamics and Hydraulic Constructions (HACH) at the University of Liège. The resulting fully integrated WOLF computation package allows engineers to accurately study a very wide range of various free surface flows, from hydrological runoff (WOLF HYDRO) and river propagation (WOLF 1D) to extreme erosive flows on realistic mobile topography (WOLF 2D), such as gradual dam breaching processes. All the finite volume models, process oriented, use efficient and original numerical methods to solve free surface flows equations. Each code handles general multiblock meshes, dealing with natural topography, dry and wet cells and mobile bed simultaneously, for any unsteady situation with mixed regimes and moving hydraulic jumps. The interactive and unique user-interface, with high performance pre- and post-processing, allows monitoring 3-D large-scale runs graphically while they proceed, as well as generating 3D videos. In addition, powerful optimisation capabilities based on the Genetic Algorithms technique (WOLF AG) are implemented within WOLF, interconnecting all the package components. An efficient tool is thus available to calibrate physical parameters in any of the models and to manage any problem of optimisation with the different solvers. In this paper, the numerical optimisation process of the system of hydroelectric power stations installed on a 60 km long section of the rivers Amblève and Warche in Belgium is presented in detail. The river network is modelled in quasi-2D using real natural topographic data on almost 1,100 finite volumes. In a first step, the hydrological balance is closed using the solver WOLF HYDRO. Roughness coefficients are calibrated from water level and discharge field measurements. Secondly, the hydroelectric production is maximised by an automatic calibration of the parameters of the hydrograph released in the network at the upstream dam. This approach leads to a substantial gain in hydroelectric production, brings significant financial benefits and deals with all management and security criteria of the river network. [less ▲]

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See detailNumerical tools for the optimization of hydroelectric power stations in cascade
Erpicum, Sébastien ULiege; Archambeau, Pierre ULiege; Dewals, Benjamin ULiege et al

in Dick, Erik; Hogge, Michel; Van Keer, Roger (Eds.) Proceedings of the 3rd Internationale Conference on Advanced Computational Methods in Engineering (2005)

The numerical optimization process of the system of hydroelectric power stations installed on a 60 km long section of the rivers Amblève and Warche in Belgium is presented in detail. The river network is ... [more ▼]

The numerical optimization process of the system of hydroelectric power stations installed on a 60 km long section of the rivers Amblève and Warche in Belgium is presented in detail. The river network is modelled in quasi-2D using real natural topographic data on almost 1,100 finite volumes. In a first step, the hydrological balance is closed using a numerical solver and roughness coefficients are calibrated from water level and discharge field measurements. Secondly, the hydroelectric production is maximised by an automatic calibration of the parameters of the hydrograph released in the network at the upstream dam. This approach leads to a substantial gain in hydroelectric production, brings significant financial benefits and deals with all management and security criteria of the river network. [less ▲]

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See detailDémarche d’investigation des situations de harcèlement moral dans une perspective d’aide et de diagnostic. .
Faulx, Daniel ULiege

in Actes du 13ème Congrès de Psychologie du Travail et des Organisation de Langue Française. CD-rom. Bologna : CLUEB. (2005)

Le but de cette communication est d’introduire un modèle clinique de diagnostic de situations de souffrance relationnelles au travail, y compris le harcèlement moral. Ce modèle vise à offrir aux ... [more ▼]

Le but de cette communication est d’introduire un modèle clinique de diagnostic de situations de souffrance relationnelles au travail, y compris le harcèlement moral. Ce modèle vise à offrir aux professionnels une grille d’analyse utilisable dans le cadre d’entretiens avec des personnes se sentant victimes de harcèlement moral ou de violence au travail. Les corpus théoriques de référence sont principalement la littérature clinique et organisationnelle sur le harcèlement moral, celle sur la violence au travail, l’analyse systémique des phénomènes d’abus et de conflit en organisation et le coping en situation de stress. Ce modèle a été construit à partir d’un programme de recherche-action comprenant d’une part la rencontre de personnes s’estimant victimes de harcèlement moral, et d’autre part l'analyse d’interventions en organisations à des fins de gestion de conflits. Une méthode d’analyse de cas a été appliquée afin d’identifier dans les témoignages de victimes quels étaient les éléments déterminants d’une situation de harcèlement moral. Plus précisément, nous avons inventorié pour chacun des entretiens les comportements de harcèlement décrits par les personnes, les conséquences qu’elles rapportaient, leurs stratégies pour y faire face, la durée et le contexte organisationnel de la situation. Les interventions en organisations ont été également analysées afin d’investiguer la manière dont les personnes définissaient et décrivaient les situations de souffrance relationnelles au travail. Dans ce cas, c’est l’ensemble des protagonistes que nous avons interrogés sur les sujets étudiés dans les analyses de cas. Ce modèle propose de distinguer cinq phénomènes : la souffrance aiguë au travail, la violence au travail, l’hyperconflit au travail, l’abus sur le lieu de travail et le harcèlement moral. Afin de mener le diagnostic, des critères discriminants sont proposés : l’observation des conséquences sur le bien-être, l’analyse des comportements hostiles, l’observation des dynamiques cognitives entre les parties, la complémentarité de la relation et l’échec du coping. [less ▲]

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See detailLes productions animales en Région wallonne, d’une économie de l’offre à une économie de la demande
Lebailly, Philippe ULiege; Claustriaux, Jean-Jacques ULiege; Duquesne, Brigitte ULiege

in 10ème Carrefour des Productions animales : L’élevage : hier, aujourd’hui, demain quelles attentes pour quels enjeux ? (2005)

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See detailPaysage et projets urbains
Teller, Jacques ULiege

in Actes du Colloque de la CPDT – Territoire, urbanisation et paysages du 19 novembre 2004 (2005)

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See detailElastic meson nucleon and nucleon nucleon scattering: Models vs. all available data
Martynov, E.; Cudell, Jean-René ULiege; Lengyel, A.

in Nicolescu, B. (Ed.) 11th International Conference On Elastic And Diffractive Scattering: Towards High Energy Frontiers: The 20th Anniversary Of The Blois Workshops (2005)

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See detailHard pomeron contribution to forward elastic scattering
Cudell, Jean-René ULiege; Lengyel, A.; Martynov, E. et al

in Nicolescu, B. (Ed.) Conference On Elastic And Diffractive Scattering: Towards High Energy Frontiers: The 20th Anniversary Of The Blois Workshops (2005)

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See detailSelecting concise sets of samples for a reinforcement learning agent
Ernst, Damien ULiege

in Proceedings of the 3rd International Conference on Computational Intelligence, Robotics and Autonomous Systems (CIRAS 2005) (2005)

We derive an algorithm for selecting from the set of samples gathered by a reinforcement learning agent interacting with a deterministic environment, a concise set from which the agent can extract a good ... [more ▼]

We derive an algorithm for selecting from the set of samples gathered by a reinforcement learning agent interacting with a deterministic environment, a concise set from which the agent can extract a good policy. The reinforcement learning agent is assumed to extract policies from sets of samples by solving a sequence of standard supervised learning regression problems. To identify concise sets, we adopt a criterion based on an error function defined from the sequence of models produced by the supervised learning algorithm. We evaluate our approach on two-dimensional maze problems and show its good performances when problems are continuous. [less ▲]

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See detailMètre et syntaxe dans la pratique de trois poètes latins : Catulle, Virgile et Horace
Purnelle, Gérald ULiege

in Calboli, Gualtiero (Ed.) Proceedings of the Twelth International Colloquium on Latin Linguistics (Bologna, 9-14 june 2003) (2005)

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See detailRXS J1131-1231: a lensed host galaxy at z = 0.66
Claeskens, Jean-François ULiege; Sluse, Dominique ULiege; Riaud, Pierre ULiege et al

in Claeskens, J. F.; Sluse, D.; Riaud, Pierre (Eds.) et al Proceedings of the Joint European and National Astronomy Meeting (http://www.astro.ulg.ac.be/RPub/Colloques/JENAM/proceedings/proceedings.html) (2005)

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See detailReproductive, survival and growth traits of the crossbreeding Belgian Texel x Moroccan local breeds of sheep
El Fadili, M.; Leroy, Pascal ULiege

in 56th Annual Meeting of the European Association for Animal Production, Uppsala, Sweden (2005)

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