References of "Scientific congresses and symposiums"
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See detailOptimisation of blocked designs in fMRI studies
Maus, Bärbel ULg; van Breukelen, G. J. P.; Goebel, R. et al

Poster (2008)

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See detailRéintroduction et impacts sur leur environnement de plantes indigènes du Cerrado
Le Stradic, Soizig ULg; Buisson, Elise; Negreiros, Daniel et al

in Actualité de la recherche en écologie des communautés végétale (2008)

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See detailPonctuation et syntaxe en ancien français : étude d’un corpus de chartes écrites à Liège avant 1292. Méthode de travail
Mazziotta, Nicolas ULg

in Habert, B.; Laks, J.; Durand, J. (Eds.) Congrès Mondial de Linguistique Française - CMLF’08 (2008)

Cette contribution présente notre thèse, en se focalisant sur la méthode. Nous avons étudié les relations entre la syntaxe et la ponctuation dans un corpus de chartes originales écrites en français à ... [more ▼]

Cette contribution présente notre thèse, en se focalisant sur la méthode. Nous avons étudié les relations entre la syntaxe et la ponctuation dans un corpus de chartes originales écrites en français à Liège au treizième siècle. Dans cette recherche, nous avons pris le parti suivant : il est possible de décrire une grande proportion des signes de ponctuation en se servant uniquement d'une approche basée sur l'analyse de la syntaxe (à l'exclusion de la sémantique ou de la visée communicative). Notre étude a nécessité que soient définis précisément les concepts de ponctuation et de syntaxe avant qu'une quelconque analyse puisse être faite. La notion de ponctuation a été définie par rapport à l'ensemble des unités de la langue écrite, que nous avons abordée d'un point de vue autonomiste. Le modèle d'analyse syntaxique a été construit progressivement, d'abord en distinguant la morphologie de la syntaxe, en suite en définissant les types de structures à trois niveaux d'intégration syntaxique différents. Nous avons ensuite employé des outils statistiques pour repérer les structures syntaxiques qui attiraient ou repoussaient la ponctuation. Cette approche outillée nous a permi de sélectionner les points sur lesquels nous avons concentré notre effort descriptif : les associations entre les structures syntaxiques et la ponctuation qui ne semblent pas dues au hasard. Enfin, nous avons examiné la forme des signes à l'aide de méthodes appropriées. [less ▲]

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See detailRole of thiamine triphosphate and adenosine thiamine triphosphate in Escherichia coli
Gigliobianco, Tiziana ULg

Poster (2008)

Thiamine triphosphate (ThTP) is found in all organisms studied from bacteria to mammals. In E. coli, ThTP is accumulated as a result of amino acid starvation in the presence of a suitable carbon source ... [more ▼]

Thiamine triphosphate (ThTP) is found in all organisms studied from bacteria to mammals. In E. coli, ThTP is accumulated as a result of amino acid starvation in the presence of a suitable carbon source such as glucose, pyruvate and lactate. On the other hand, adenosine thiamine triphosphate (AThTP), that was recently discovered in E. coli, accumulates in the absence of a carbon source. While AThTP is synthesized in E. coli according to the reaction ThDP + ADP (ATP) ↔ AThTP + Pi (PPi) by a soluble high molecular mass nucleotidyl transferase, the mechanism of synthesis of ThTP remains unknown. Though both bacterial and mammalian adenylate kinases are able to catalyze ThTP synthesis at a very low rate in vitro, this reaction is not responsible for ThTP synthesis in vivo. AThTP is synthesized in E. coli incubated in minimal medium devoid of any carbon source. The addition of glucose leads to the immediate disappearance of AThTP and the appearance of ThTP. ThTP production is strongly impaired in the presence of protonophores, even when a high intracellular concentration of ATP is maintained through glycolysis. Our results suggest that ThTP accumulation requires a high protonmotive force rather than a high intracellular ATP concentration. On the other hand, AThTP is synthesized under conditions of limited energy availability, either in the absence of a carbon source or in the presence of a carbon source and metabolic inhibitors or uncouplers. Interestingly, ThTP and AThTP never accumulate simultaneously in high amounts. Our results suggest that in E. coli both compounds might therefore act as specific “alarmones”, responding to different conditions of cellular stress. [less ▲]

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See detailModelling of Unit Operations by Molecular Simulations
Babic, D; Pfennig, Andreas ULg

in Solvent Extraction: Fundamentals to Industrial Applications. Proceedings of the ISEC 2008 International Solvent Extraction Conference : 16-19 septembre 2008 (2008)

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See detailDer Einfluss von Einbauten auf den reaktiven Stoffaustausch an Einzeltropfen
Kalem,, Murat; Pfennig, Andreas ULg

Conference (2008)

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See detailHolocene records of regional dust deposition using peat bogs
Le Roux, G.; De Vleeschouwer, François; Cheburkin, A. et al

in Geochimica et Cosmochimica Acta (2008), 72(12), 535-535

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See detailA new design model for the resistance of steel semi-compact cross-sections
Boissonnade, N.; Jaspart, Jean-Pierre ULg; Oerder, R. et al

in Proceedings of EUROSTEEL 2008 (2008)

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See detailEnglish and Spanish Size Noun-constructions, a locus of ongoing grammaticalization
Brems, Lieselotte ULg; Verveckken, Katrien

Conference (2008)

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See detailExact solution to the relative orbital motion in a central force field
Condurache, D.; Martinusi, Vladimir ULg

in 2nd International Symposium on Systems and Control in Aerospace and Astronautics, 2008. ISSCAA 2008. (2008)

The paper presents the exact solution to the relative orbital motion that takes place in a central force field.This problem is a generalization of the problem of the Keplerian relative motion in a central ... [more ▼]

The paper presents the exact solution to the relative orbital motion that takes place in a central force field.This problem is a generalization of the problem of the Keplerian relative motion in a central force field. The solution is presented in a coordinate free vectorial form, offering closed form expressions for the law of motion and the velocity. The solution is offered to the non-linear model of the relative motion problem, and itgeneralizes the solutions found by Clohessy-Wiltshire, Lawden and Tschauner-Hempel for the case of the Keplerian relative motion. The applications of this problem are in satellite formation flying, satellite constellations and orbital rendezvous. [less ▲]

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See detail1.2 Evolution du cadre législatif et prise en charge des mineurs - Introduction
Gavray, Claire ULg

in Bailleau, Francis (Ed.) Evolution ou rupture ? La justice des mineurs en question (2008)

acts devoted to the evolutions in the European systems of justice of the minors.

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See detailEthisch-normative Fragestellungen auf Grundlage globaler Bilanzen
Kopriwa, Nicole; Pfennig, Andreas ULg

in Chemie Ingenieur Technik (2008), 80(9), 1393-1394

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See detailContinuous-state reinforcement learning with fuzzy approximation
Busoniu, Lucian; Ernst, Damien ULg; De Schutter, Bart et al

in Tuyls, K.; Nowé, A.; Guessoum, Z. (Eds.) et al Adaptive Agents and Multi-Agent Systems III, Adaptation and Multi-Agent Learning (2008)

Reinforcement learning (RL) is a widely used learning paradigm for adaptive agents. There exist several convergent and consistent RL algorithms which have been intensively studied. In their original form ... [more ▼]

Reinforcement learning (RL) is a widely used learning paradigm for adaptive agents. There exist several convergent and consistent RL algorithms which have been intensively studied. In their original form, these algorithms require that the environment states and agent actions take values in a relatively small discrete set. Fuzzy representations for approximate, model-free RL have been proposed in the literature for the more difficult case where the state-action space is continuous. In this work, we propose a fuzzy approximation architecture similar to those previously used for Q-learning, but we combine it with the model-based Q-value iteration algorithm. We prove that the resulting algorithm converges. We also give a modified, asynchronous variant of the algorithm that converges at least as fast as the original version. An illustrative simulation example is provided. [less ▲]

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See detailEthics for Energy Technologies
Kopriwa, Nicole; Pfennig, Andreas ULg

Poster (2008)

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See detailNumerical investigations on web panels stiffened by one or two trapezoidal stiffeners
Degée, Hervé ULg; Boissonnade, N.; Maquoi, René ULg

in Proceedings of the 5th International Conference on Coupled Instabilities in Metal Structures (2008)

This paper focuses on the behaviour of I-girder web panels subjected to combined bending and shear and stiffened by longitudinal trapezoidal stiffeners. This implies to account for the coupling between ... [more ▼]

This paper focuses on the behaviour of I-girder web panels subjected to combined bending and shear and stiffened by longitudinal trapezoidal stiffeners. This implies to account for the coupling between local panel buckling between stiffeners and global buckling of the whole stiffened panel. The study is restricted to panels with one or two longitudinal stiffeners, for which the well-known orthotropic plate approach may not be relevant. For such configurations, the most recent design rules available may either not address this specific problem or be too conservative. This contribution provides information on the behaviour of such girders based on numerical simulations. Results of extensive non-linear FEM calculations are presented and discussed. The effects of aspect ratio, web slenderness and position of stiffeners are studied. Numerical results are compared to design loads obtained according to Eurocode 3 Part 1.5. The parameter study shows that several aspects of the code may be improved and proposals in this respect are given and validated through the numerical results. In particular, the beneficial effect of closed longitudinal stiffeners is highlighted. It is shown that the high level of torsional rigidity exhibited by welded trapezoidal stiffeners may significantly increase the overall resistance of the web panel. [less ▲]

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See detailIconografia dannunziana. Il corpo "esposto" in fotografia
Dondero, Maria Giulia ULg

in Curreri, Luciano (Ed.) D'Annunzio come personaggio nell'immaginario italiano ed europeo (1938-2008). Una mappa (2008)

Cet article développe une étude sémiotique sur les représentations photographiques de Gabriele D’Annunzio et des personnes, artistes, acteurs ou amis, qui ont été une source d’inspiration pour ses travaux ... [more ▼]

Cet article développe une étude sémiotique sur les représentations photographiques de Gabriele D’Annunzio et des personnes, artistes, acteurs ou amis, qui ont été une source d’inspiration pour ses travaux littéraires, mais aussi pour ses activités d’homme politique. À partir d’un corpus d’images photographiques, j’ai étudié les iconographies du « corps-membrane » et du « corps-statue » en les liant à des postures passionnelles et éthiques telle la grâce et l’ostentation, afin de comparer cette iconographie avec les élaborations littéraires, fictionnelles et journalistiques de D’Annunzio. [less ▲]

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See detailMigrations et environnement, état des savoirs sur une relation méconnue
Gemenne, François ULg

in GISTI (Ed.) Quel statut pour les régugiés environnementaux ? Actes de la journée du 14 décembre 2007. (2008)

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See detailLes sables mouvants de la recherche action comme terrain géographique
Schmitz, Serge ULg

in A travers l’espace de la méthode : les dimensions du terrain en géographie : Université d'Artois, 18-20 juin 2008 (2008)

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See detailA propos des peintures romanes de la cathédrale de Tournai
Lepot, Laurent ULg; Gilbert, Bernard ULg; Denoël, Sophie

in Denoël, Sophie (Ed.) Les peintures murales, Les techniques : Actes du colloque (2008)

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See detailStructural design of stainless steel lipped channel - Comparison between European, Australian recommendations and experimental results
Rossi, Barbara ULg; Rasmussen, Kim J.R.

in European conference on steel and composite structures : Eurosteel2008, Gratz 3-5 September 2008 (2008)

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See detailL'impact de l'ouverture à la concurrence
Pauliat, Hélène; Burnham, June; Galabov, Anthony et al

in Pauliat, Hélène (Ed.) Services publics, concurrence, régulation : le grand bouleversement en Europe ? (2008)

Mon intervention lors de ce panel porte principalement sur la libéralisation du secteur du placement des demandeurs d'emploi et du secteur de l'énergie.

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See detailGENIE: High-Resolution Study of Debris Disks
Absil, Olivier ULg; Augereau, Jean-Charles; Den Hartog, Roland et al

in Richichi, A.; Delplancke, F.; Paresce, F. (Eds.) et al The Power of Optical/IR Interferometry: Recent Scientific Results and 2nd Generation Instrumentation (2008)

GENIE, the Ground-based European Nulling Interferometer Experiment, will combine the lights collected in the L’ band by two VLT telescopes in a destructive way, thereby revealing the thermal and/or ... [more ▼]

GENIE, the Ground-based European Nulling Interferometer Experiment, will combine the lights collected in the L’ band by two VLT telescopes in a destructive way, thereby revealing the thermal and/or scattered emission of faint objects in the close neighbourhood of the target star. A prime scientific goal for GENIE thus consists in the detection and characterization of debris disks around nearby Vega-type stars. Thanks to its high angular resolution and operating wavelength (3.8 µm), GENIE will be particularly sensitive to the thermal emission from the warm dust standing within a few AU from the star, a part of the disks which is not accessible with current detection methods (IR photometric excesses, sub-millimeter imaging, …). In this paper, we investigate the capabilities of GENIE to detect and characterize the physical parameters of the debris disk around zeta Leporis, a prototypical Vega-type star suspected to harbour a warm dust component in its debris disk (Fajardo-Acosta et al., AJ 115, 2101). This study is then extended to the detection of faint exozodiacal disks around typical Darwin/TPF targets, thereby demonstrating the very high potential of GENIE in the field of high-contrast imaging. [less ▲]

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See detailSea-level changes and brachiopods and coral extinctions during the late Frasnian in the Namur-Dinant Basin (Belgium)
Mottequin, Bernard ULg; Poty, Edouard ULg

in Kröger, B.; Servais, T. (Eds.) Palaeozoic climates (2008)

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See detailComplications neurologiques des anesthésies locorégionales
KURTH, Isabelle ULg; LIBBRECHT, Dominique ULg; WANG, François-Charles ULg

in Péréon, Yann (Ed.) ENMG 2008 (2008)

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See detailThe Chemical Composition of B-type Pulsators: Some Unexpected Results
Morel, Thierry ULg; Briquet, Maryline ULg; Aerts, C.

in Precision Spectroscopy in Astrophysics (2008)

We present a project aimed at self-consistently deriving the physical parameters and chemical composition of massive pulsators (β, Cephei stars, Slowly Pulsating B stars) based on high-resolution optical ... [more ▼]

We present a project aimed at self-consistently deriving the physical parameters and chemical composition of massive pulsators (β, Cephei stars, Slowly Pulsating B stars) based on high-resolution optical spectra. Such data will be essential for a proper theoretical interpretation of their oscillation spectrum, but may also contribute in a broader context to our understanding of mixing and diffusion processes in B-type stars. As an illustration, our first results reveal the existence of core-processed material at the surface of some slowly-rotating β, Cephei stars which is not predicted by current evolutionary models including rotation. [less ▲]

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See detailMiddle energy PIXE preliminary experiments
Dupuis, Thomas ULg; Mathis, François ULg; Marchal, André ULg et al

Conference (2008)

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See detailPseudomonas aeruginosa and severity of ventilator associated pneumonia
LAYIOS, Nathalie ULg; LEDOUX, Didier ULg; NYS, Monique ULg et al

in Intensive Care Medicine (2008), 34(Suppl 1), 38

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See detailDes marmites pour un méchant petit hermès ! ou comment consacrer une statue
Pirenne-Delforge, Vinciane ULg

in Estienne, Sylvia; Jaillard, Dominique; Lubtschansky, Natacha (Eds.) et al Image et religion dans l’Antiquité gréco-romaine. Actes du Colloque de Rome, 11-13 décembre 2003 (2008)

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See detailNitrogen Isotope Ratios in Comets. ESO Astrophysics Symposia
Cochran, Anita L; Jehin, Emmanuel ULg; Manfroid, Jean ULg et al

in Precision Spectroscopy in Astrophysics (2008)

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See detailScaffolds for bone tissue engineering: design, production and evaluation
Schrooten, Jan; Impens, Saartje; Chen, Y. et al

Conference (2008)

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See detailProbabilistic Pose Recovery Using Learned Hierarchical Object Models
Detry, Renaud ULg; Pugeault, Nicolas; Piater, Justus ULg

in International Cognitive Vision Workshop (Workshop at the 6th International Conference on Vision Systems) (2008)

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See detailImpact of prosthesis-patient mismatch on short-term mortality following mitral valve replacement.
Magne, Julien ULg; Mathieu, P; Dumesnil, JG et al

Conference (2008)

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See detailL’Histoire des Amazones de Claude-Marie Guyon (1740): de l’exercice du pouvoir par les femmes
Henneau, Marie-Elisabeth ULg

in Leduc, Guyonne (Ed.) Réalité et représentations des Amazones (2008)

Les Amazones ont été fréquemment convoquées, lorsqu’il s’est agi d’aborder la question de l’exercice du pouvoir par les femmes et de délibérer à propos de leurs réelles compétences en ce domaine. En 1740 ... [more ▼]

Les Amazones ont été fréquemment convoquées, lorsqu’il s’est agi d’aborder la question de l’exercice du pouvoir par les femmes et de délibérer à propos de leurs réelles compétences en ce domaine. En 1740, l’étude que leur consacre l’abbé Guyon, bien connue des spécialistes, est intéressante à plus d’un titre. Opuscule à prétention scientifique, il propose une réflexion sur le rapport entre mythe et histoire. Au cours d’une démonstration érudite destinée à prouver la véracité du phénomène abordé, l’auteur livre une série de réflexions originales sur l’art de gouverner et sur l’habileté de certaines femmes à s’y être adonnées avec succès tout au long de l’Histoire. [less ▲]

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See detailThey Walk! They Talk! A Study of the Anthropomorphisation of Non Human Characters in Animated Films
Collignon, Stéphane ULg

in Animatrix (2008), 16

études des figurines anthropomorphisées dans le cinéma d'animation. Proposition de catégories d'études.

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See detailExtraction, caractérisation et activités antimicrobiennes de quelques huiles essentielles des plantes du haut et moyen atlas du Maroc
Dahak, K.; Lakhmili, S.; Wathelet, Jean-Paul ULg et al

Conference (2008)

Notre étude a porté sur l'extraction des huiles essentielles (HE) de certaines plantes Marocaines du haut Atlas: région de Marrakech (Citrus aurantium, Lavandula dentata et Feoniculum vulgare) et du moyen ... [more ▼]

Notre étude a porté sur l'extraction des huiles essentielles (HE) de certaines plantes Marocaines du haut Atlas: région de Marrakech (Citrus aurantium, Lavandula dentata et Feoniculum vulgare) et du moyen Atlas: région d’azilal (Ouaouizerth) (Laurus nobilis et Lavandula officinalis). [less ▲]

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See detailLa mondialisation multiple des musiques populaires
Pirenne, Christophe ULg

Conference (2008)

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See detailAn explicit projection method for solving incompressible Navier-Stokes equations
Detrembleur, Sylvain ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Proceedings of the 2nd International Junior Researcher and Engineer Workshop on Hydraulic Structures (2008)

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See detailApplication of a three-field natural neighbour method in elastoplasticity
Li, Xiang; Cescotto, Serge ULg; Duchene, Laurent ULg

in Proceedings of the 8th World Congress on Computational Mechanics (WCCM8) (2008)

The natural neighbour method can be considered as one of the many variants of the meshless methods. Classically, the development of these methods is based on the virtual work principle: a set of nodes are ... [more ▼]

The natural neighbour method can be considered as one of the many variants of the meshless methods. Classically, the development of these methods is based on the virtual work principle: a set of nodes are distributed over the domain to be studied and the displacement field is discretized with the help of interpolation functions that are not based on the finite element concept but only based on the nodes. In the present paper, we use a new approach based on the Fraeijs de Veubeke (FdV) functional [1] and initially developed for linear elasticity [2]. It uses separate discretizations of the displacements, stresses and strains. The method of [2] is extended to the case of geometrically linear but materially non linear solids and it is shown that, in the absence of body forces, the calculation of integrals over the area of the domain is avoided and that the derivatives of the nodal shape functions are not required, which constitutes an advantage over classical meshless and finite elements methods. [less ▲]

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See detailCoping with Desertification : Migration as a Forced Choice and a Livelihood Strategy
Gemenne, François ULg

in Ozer, André; Swinne, Danielle (Eds.) Desertification : Migration, Health, Remediation and Local Governance (2008)

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See detailContribution of ATP-gated P2X1 ion channels to the control of neutrophil chemotaxis.
Lecut, Christelle ULg; Frederix, Kim ULg; Johnson, Daniel et al

in Purinergic Signalling (2008), 4

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See detailCaracterización y cuantificación autmatizadas de menas metálicas mediante visión artificial : proyecto cameva
Castroviejo, Ricardo; Catalina, Juan-Carlos; Bernhardt, Heinz-Juergen et al

in Actos del XIII Congreso Latino Americano de Geologia (2008)

The CAMEVA project (Automated system for the identification and quantitative measurement of ore minerals) aims to develop an automated system able to perform the identification and quantification of the ... [more ▼]

The CAMEVA project (Automated system for the identification and quantitative measurement of ore minerals) aims to develop an automated system able to perform the identification and quantification of the different minerals present in a sample of metallic ores, in order to facilitate their industrial use. The system comprises a motorised reflected light microscope, a filter wheel (monochromator), a research BW camera, and a computer running a digital image analysis software associated to an expert system specially developed for this application. Multispectral reflectance values are measured for visible light and near IR and UV (350-1000 nm), and no polarisation is usually employed in order to reduce measurement variability due to mineral anisotropy. Mineral identification is carried out by comparison of measured reflectances with spectral reflectance databases (e.g. IMA-COM). Previous experiences showed that the most common ores can be differentiated through the analysis of a microscopic RGB colour image, by constraining the search with additional information such as the type of deposit and the corresponding mineral association. The project goes further, and intends to identify most of the ores from multi-spectral images, including non-visible bands, resorting to an expert system specifically built to deal with the different types of information available (spectral reflectance, sample origin, mineral associations, morphology, etc). 2 Validation of the method will be carried out by comparative análisis of standards and samples exchanged between the laboratories. Development pays special attention to the total automation of the process (including calibration) and to the self-learning capabilities of the system. Contacts with research institutions and with the industry will allow to apply the system to real problems. The system can be used to control the processing of ores as well as to prevent pollution for the protection of the environment (e.g. sulphides in coal or in industrial tailings). Further applications can be envisaged in the future: e.g. other minerals, coal or materials, particles, etc. [less ▲]

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See detailEnergy from photobioreactors: Bioencapsulation of photosynthetically active molecules, organelles, and whole cells within biologically inert matrices
Rooke, J. C.; Meunier, C.; Léonard, Alexandre ULg et al

in Pure & Applied Chemistry (2008), 80(11), 2345-2376

Photosynthesis is a highly efficient solar energy transformation process. Exploiting this natural phenomenon is one way to overcome the shortage in the Earth's fuel resources. This review summarizes the ... [more ▼]

Photosynthesis is a highly efficient solar energy transformation process. Exploiting this natural phenomenon is one way to overcome the shortage in the Earth's fuel resources. This review summarizes the work carried out in the field of photobioreactor design via the immobilization of photosynthetically active matter within biologically inert matrices and the potential biotechnological applications of the obtained hybrid materials within the domain of solar energy to chemical energy transformation. The first part deals with the design of artificial photosynthetic reaction centers (RCs) by the encapsulation of pigments, proteins, and complexes. The action of thylakoids, chloroplasts, and whole plant cells, immobilized in biocompatible supports, in the conversion of CO 2 into chemical energy, is also addressed. Finally, the latest advances in the exploitation of the bioactivity of photosynthetically active micro-organisms are explored in terms of the production of secondary metabolites and hydrogen. © 2008 IUPAC. [less ▲]

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See detailIonospheric Products and Services from the Regional Warning Centers of the International Space Environment Service (ISES) for GNSS Users
Kunches, J.; Terkildsen, M.; Stanislawska, I. et al

Conference (2008)

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See detailProfile of methylaion of tumour related genes in breast cancer in Tunisian women
Hachana, Mohamed Ridha ULg; Trimeche, Mounir; Ziadi, Sonia et al

in European Journal of Cancer (2008), 6(9), 195

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See detailBiodiversité et caractéristiques physiques des cours d'eau
Philippart, Jean-Claude ULg

in Lambot, Françis; et collaborateurs (Eds.) Actes du Colloque de Namur "La gestion physique des cours d'eau: bilan d'une décennie d'ingénierie écologique" (2008)

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See detailPrediction of the sound pressure levels using a diffusion model: numerical validations and experimental comparisons
Billon, Alexis ULg; Picaut, Judicaël

in Journal of the Acoustical Society of America (2008), 123(5), 3924-3924

redictions of sound propagation in urban areas have attracted a considerable over the years. If the sound energy is assimilated to particles with a constant energy, their movement can be described by a ... [more ▼]

redictions of sound propagation in urban areas have attracted a considerable over the years. If the sound energy is assimilated to particles with a constant energy, their movement can be described by a transport equation. In canyon streets, this transport equation can be reduced to a diffusion equation whose expression is more simple. In this presentation, sound absorption at the boundaries (buildings facades and ground), as well as atmospheric sound attenuation are introduced. The problem is then solved numerically using a finite elements method for the configuration of a canyon street. A systematic validation of the obtained model is carried out in terms of sound pressure level by comparison to numerical simulations taken from the literature. Comparisons with experimental data are then conducted. Finally, applications in more complex configurations are presented. [less ▲]

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See detailThe influence of friction on elasto-plastic material in nanoindentation
Guo, Weichao ULg; Ponthot, Jean-Philippe ULg; ZHANG, W. H. et al

in Proceedings of ACOMEN’2008, Advanced Computational Methods in Engineering (2008)

A comprehensive computational study is undertaken to identify the influence of friction in nanoindentation of elasto-plastic materials, the impacts of friction on calculation results with conical and ... [more ▼]

A comprehensive computational study is undertaken to identify the influence of friction in nanoindentation of elasto-plastic materials, the impacts of friction on calculation results with conical and spherical indenters are shown in this paper. The results clearly demonstrate that, for some elasto-plastic materials, the P  h curves obtained either by spherical or conical indenters with different friction coefficients cannot be distinguished. However, if utilizing the parameter  (see text for details), to quantify the deformation of piling-up or sinking-in, it is easy to find that the influence of friction on piling-up or sinking-in in nanoindentation is significant. Therefore, the material parameters derived from the projected area will have a large error caused by the influence of friction. In this paper, the maximum error on hardness can reach 14% for some elastic materials. These results do not agree with those from researchers who stated that instrumented indentation experiments are not significantly affected by friction. Moreover, in conical indentation, friction can effectively restrain the slip on the interface between indenter and specimen, which leads to a decrease in the amount of piling-up or increase in the amount of sinking-in. However, when the half apex angle is large enough, the influence of friction becomes a minor factor in indentation. In spherical indentation, the amount of piling-up decreases or of sinking-in increases with an increasing friction coefficient. But the friction is independent of the radius of spherical indenter, the piling-up or sinking-in obtained by two different spherical indenters with varying friction coefficients are nearly identical. [less ▲]

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See detailLes produits animaux dans l’assiette des Wallons
Duquesne, Brigitte ULg

in Treizième Carrefour des Productions Animales "L'élevage des ruminants en question : vérités et contre-vérités" (2008)

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See detailImprovement of He ion induced SiGe layer relaxation by a thin Si:C layer
Buca, D.; Trinkaus, H.; Holländer, B. et al

Conference (2008)

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See detailA systematic procedure to predict flows induced by major dysfunctions on complexes or cascades of dams
Dewals, Benjamin ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Proceedings of the 3rd IAHR-International Symposium on Hydraulic Structures (2008)

Hazard analysis of dams arranged in complex or in cascade may involve the assessment of a large number of different scenarios of combined failures. However, a tremendous computation time would be needed ... [more ▼]

Hazard analysis of dams arranged in complex or in cascade may involve the assessment of a large number of different scenarios of combined failures. However, a tremendous computation time would be needed to perform a detailed modeling of the flows generated by all possible scenarios. Therefore, the present paper describes a rational methodology for analyzing the flows induced by the most relevant incidents occurring on a complex or in a cascade of dams and reservoirs. The methodology combines several hydrodynamic models, including the twodimensional flow solver WOLF 2D and a simplified lumped hydrodynamic model, to simulate (i) the flows induced on the dams complex, (ii) the potential breaching in cascade of other dams, as well as (iii) the propagation of the flood wave in the whole downstream valley. The application of the methodology to a practical case study involving a complex of five dams is also described. [less ▲]

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See detailRelevance of inertial fatigue test in sport applications
Jidovtseff, Boris ULg; Cordonnier, Caroline ULg; Binard, Anne-Sophie et al

in Isokinetics & Exercise Science (2008), 16(3), 190

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See detailDes appétits nouveaux pour les produits de terroir ?
Duquesne, Brigitte ULg

Conference (2008)

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See detailComplex transitions in the Bone Mineralization Density Distribution (BMDD) caused by changes in bone turnover
Ruffoni, Davide ULg; Fratzl, Peter; Lukas, Carolin et al

in BONE (2008), 42(1), 64-64

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See detailGenetic Improvement of Growth in perch production: domestication, sex control, hybridization and strain selection.
Rougeot, Carole ULg; Mélard, Charles ULg

in Proceedings of the internationl workshop on Percid Fsih Culture (2008)

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See detailModelling the vertical spincasting of large bimettalic rolling mill rolls
Studer, Léo ULg; Detrembleur, Sylvain ULg; Habraken, Anne ULg et al

in Proceedings of the Second International Conference on Advances in Solidification Processes (ICASP-2) (2008)

In order to take into account the dynamic effects of molten metal during solidification, a methodology is presented to interface a metal solidification solver with a specifically developped flow dynamics ... [more ▼]

In order to take into account the dynamic effects of molten metal during solidification, a methodology is presented to interface a metal solidification solver with a specifically developped flow dynamics solver. [less ▲]

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See detailANALYSIS OF DIOXINS AND DIOXIN-LIKE PCBS IN HOME PRODUCED EGGS: LEVELS AND SOURCES
Van Overmeire, Ilse; Eppe, Gauthier ULg; Waegeneers, Nadia et al

in Organohalogen Compounds (2008)

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See detailNew insights in auditory organ development: the inner pillar cell goes it own way
Thelen, Nicolas; Malgrange, B; Thiry, Marc ULg

Poster (2008)

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See detailImagerie fonctionnelle et coma: implications pronostiques
Vanhaudenhuyse, Audrey ULg

Conference (2008)

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See detailImplementation of health aspects (ER N°3) in the Construction Products; Directive (CPD) regarding emissions to indoor air
Lor, Marc; Vause, Kevin; Goelen, Eddy et al

Poster (2008)

Standardisation work on test methods for dangerous substances released in the indoor air by construction products is currently ongoing at European level. The paper presents a study conducted in Belgium ... [more ▼]

Standardisation work on test methods for dangerous substances released in the indoor air by construction products is currently ongoing at European level. The paper presents a study conducted in Belgium, which compares methods in three different test chambers and aiming at assessing the performance of the products placed on the market. [less ▲]

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See detailDam-break flow computation using high resolution DEM
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Hogge, Michel; Van Keer, R.; Noels, L. (Eds.) et al Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

Dam-break flow computation is a task of prime interest in the scope of risk analysis processes related to dams and reservoirs. High resolution Digital Elevation Models (DEMs) available today provide ... [more ▼]

Dam-break flow computation is a task of prime interest in the scope of risk analysis processes related to dams and reservoirs. High resolution Digital Elevation Models (DEMs) available today provide extremely dense and accurate topography information in the valley downstream of these structures, even in urban area. In this paper, a 2D finite volume flow solver, able to deal with these DEMs, is presented in details. Validation examples are comprehensively described. [less ▲]

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See detailNumerical analysis of coupled mechanical and hydraulic effects induced by a blood pressure meter
Paulus, Raphaël ULg; Dewals, Benjamin ULg; Erpicum, Sébastien ULg et al

in Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

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See detailNo effect of parity on concentrations of bovine pregnancy associated glycoprotein (PAG) measurement by radioimmunoassay.
Ayad, A.; Melo de Sousa, Noelita ULg; Iguer-Ouada, M. et al

in Reproduction in Domestic Animals (2008), 43(Suppl 5), 90

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See detailCan laboratory tests help to define the profile of desensitised patients or patients at high risk of severe reaction ?
Gadisseur, Romy ULg; Collard, Ludivine; Cataldo, Didier ULg et al

in Allergy (2008), 63(Suppl. 88), 1773

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See detailLa constelación del sur: la traducción durante el auge editorial en la Argentina
Willson, Patricia ULg

in Afef, Benessaieh (Ed.) Canada and the Americas: Multidisciplinary Perspectives on Transculturality. Proceedings from the International, Multi-lingual Colloquium, Toronto, april 24-25 2008 (2008)

During the editorial boom in the Argentina of the 40s and the 50s, several translations of authors like William Faulkner, Virginia Woolf, Samuel Beckett, Jean Genet, and Henry James, among others, were ... [more ▼]

During the editorial boom in the Argentina of the 40s and the 50s, several translations of authors like William Faulkner, Virginia Woolf, Samuel Beckett, Jean Genet, and Henry James, among others, were published. Some of them were first versions in Spanish of those authors. This paper deals with the synergy between these translations and a new anti-realistic poetics of narrative texts that emerged in Argentine literature in that period. Being Jorge Luis Borges the paradigmatic translator in this process, his translations of Woolf's Orlando and Faulkner's The Wild Palms are analyzed showing their foreignizing translation strategies. [less ▲]

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See detailNon-native prosody: production and perception of accent
Rasier, Laurent ULg; Caspers, Johanneke; Van Heuven, Vincent

Conference (2008)

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See detailAssociation of Simian Virus 40 (SV40) with human breast carcinomas in Tunisian women
Hachana, Mohamed Ridha ULg; Trimeche, Mounir; Ziadi, Sonia et al

in European Journal of Cancer (2008), 6(9), 195

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See detailStudy on the relationship between corrosion damage and residual strength of AL 7075-T6 alloy
Guo, Yingnan; Wu, Ling ULg; Sun, Qin

in ICAS Secretariat - 26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008 (2008)

It has been found in experiment that the local-scale pit corrosion of aluminum alloy 7075-T6 can lead to dramatic loss of its macroscopic tensile ductility. Based on the Gurson’s void model, the present ... [more ▼]

It has been found in experiment that the local-scale pit corrosion of aluminum alloy 7075-T6 can lead to dramatic loss of its macroscopic tensile ductility. Based on the Gurson’s void model, the present paper aims to investigate quantitatively the changing characteristics of the plastic property and ultimate strength for the aluminum alloy with skin-deep pit corrosion. The tensile behaviors of the corroded 7075-T6 specimens with the different degrees of pit corrosion and weight loss are estimated by micromechanical analysis in this paper, and also the yielding strengths of the specimens are evaluated by the Gurson’s criterion. The predicted properties of the corroded specimens are in accordance with the experimental results very well. [less ▲]

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See detailProgrammes d’inventaire et de surveillance des invertébrés en Wallonie (objectifs, structure et résultats)
Dufrêne, Marc ULg; Barbier, Yvan; Fichefet, Violaine

Conference (2008)

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See detailLe questionnaire de Stress Professionnel Positif et Négatif: Validation interne.
Barbier, Marie ULg; Hansez, Isabelle ULg

in Pettersen, N.; Boudrias, J. S.; Savoie, A. (Eds.) Entre tradition et innovation, comment transformons-nous l’univers du travail ? Actes du 15ème Congrès de Psychologie du Travail et des Organisations de Langue Française. (2008)

L’émergence du courant de la psychologie positive coïncide, en psychologie du travail, avec le développement d’un intérêt pour les réponses positives des travailleurs à leurs conditions de travail ... [more ▼]

L’émergence du courant de la psychologie positive coïncide, en psychologie du travail, avec le développement d’un intérêt pour les réponses positives des travailleurs à leurs conditions de travail. Parallèlement, le modèle Job Demands-Resources de Schaufeli & Bakker (2004) postule que stress positif et stress négatif sont deux facettes différentes du bien-être au travail, qui sont causées par des conditions et des processus différents, et doivent donc être mesurées par des items différents. Cette étude porte sur la validation interne du questionnaire SPPN, permettant de mesurer le Stress Professionnel Positif et Négatif vécu par les travailleurs. Des analyses factorielles exploratoires ont été réalisées sur un échantillon de 4666 travailleurs, provenant de 9 entreprises belges et françaises actives dans différents secteurs. Les résultats mettent en évidence qu’une structure à deux dimensions, l’une mesurant le Stress Professionnel Positif, l’autre mesurant le Stress Professionnel Négatif, sous-tend le questionnaire. Les qualités psychométriques de ces deux sous-échelles satisfont les critères recommandés. La conclusion insiste sur la nécessité de compléter ces analyses exploratoires par des analyses confirmatoires et des analyses de validité externe. Les apports conceptuels et empiriques de l’outil sont également développés. [less ▲]

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See detailHigh resolution 3-D imaging of void networks in plant tissues
Verboven, Pieter; Kerckhofs, Greet ULg; Cloetens, Peter et al

in Abstract book SkyScan User Meeting 2008 (2008)

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See detailReDrop – An Efficient Monte-Carlo Method for Simulating Extraction Columns
Kalem, Murat; Pfennig, Andreas ULg

Conference (2008)

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See detailVascular architecture of breast cancer xenographs over-expressing MT4-MMP
Chabottaux, V; Thiry, Marc ULg; Blacher, Silvia ULg et al

in Acta Clinica Belgica (2008), 63

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See detailHigh-dimensional probability density estimation with randomized ensembles of tree structured bayesian networks
Ammar, Sourour; Leray, Philippe; Defourny, Boris ULg et al

in Proc. of the 4th European Workshop on Probabilistic Graphical Models (PGM08) (2008)

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See detailThe effect of anaesthetic technique on the incidence of Complex Regional Pain Syndrome after surgical hand fracture: Retrospective approach
Lejeune, Bertrand; Teuwis, Sandrine ULg; Lecoq, Jean-Pierre ULg et al

in Acta Anaesthesiologica Belgica (2008), 59(3), 209

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See detailLandslide Detection Methods, Inventory Analysis and Susceptibility Mapping Applied to the Tien Shan, Kyrgyz Republic.
Danneels, Gaëlle; Havenith, Hans-Balder ULg; Strom, A. et al

in Proc. of the First World Landslide Forum (2008)

This paper presents results of the last five years of landslide detection and landslide susceptibility mapping in the Central and Southern Tien Shan. Landslide inventories have been compiled for areas of ... [more ▼]

This paper presents results of the last five years of landslide detection and landslide susceptibility mapping in the Central and Southern Tien Shan. Landslide inventories have been compiled for areas of major interest in the Kyrgyz Republic. For those areas, landslides were first mapped manually using KFA satellite images and aerial photographs. Recently, a landslide detection method has been developed in order to map landslides automatically. This method is based on a neural network scheme applied to detect particular slope failure features from remote sensing data. Multi-spectral and/or panchromatic ASTER and SPOT images as well as digital elevation models (DEMs) are used as inputs. This automatic method is designed to map medium-size mass movements (105-107 m3). This approach supplements the manual mapping of large slope failures and helps to complete the inventory of mass movements and related landslide susceptibility/hazard maps for large areas within the Tien Shan. Size-frequency analyses have been applied to the two existing regional landslide inventories. These size-frequency analyses revealed the incompleteness of the respective inventories (in the low-size domain) as well as regional and local differences due to natural and anthropogenic influences. To be able to perform reliable susceptibility and size-frequency analyses, the completed inventories need to be verified. At present, we perform local verification by manual mapping and control, but automatic verification methods are being developed. They will also allow us to determine the level of uncertainties. Ongoing research is focused on the propagation of uncertainties throughout the chain of processing. [less ▲]

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See detailAnti-inflammatory effects of ipratropium bromide in rats with cadmium-induced acute pulmonary inflammation
Zhang, W.; Fievez, Laurence ULg; Cheu, Esteban ULg et al

in Proceedings of the 12th Annual Meeting of the French Society of Pharmacology and Therapeutics (2008)

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See detailImpact of the use of two different methods to appreciate the depreciation costs of machinery on total production costs and on farm income in Wallonia (Belgium)
Illo, S.; Burny, Philippe ULg

in Farm machinery and process management in sustainable agriculture : III International scientific symposium. Gembloux, 12-13 November 2008. Tome 1 (2008)

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See detailCerebral subarachnoid blood migration consecutive to a lumbar haematoma after spinal anaesthesia
Goujon-Dubois, Julie; Hans, Grégory ULg; Senard, Marc ULg et al

in Acta Anaesthesiologica Belgica (2008), 59(3), 223

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See detailImplication of soluble receptors of VEGF, sVEGFR-1 and sVEGFR-2, in angiogenesis
Lorquet, Sophie ULg; Berndt, Sarah ULg; Blacher, Silvia ULg et al

in American Journal of Reproductive Immunology (2008), 60/1

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