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See detailConfinement and cut-off: A model for the Pion Quark Distribution Function
Stassart, Pierre ULg; Bissey, F.; Cudell, Jean-René ULg et al

(2003)

The pion structure function is investigated in a simple pseudo-scalar coupling model of pion and constituent quark fields. The imaginary part of the forward Compton scattering amplitude is evaluated. We ... [more ▼]

The pion structure function is investigated in a simple pseudo-scalar coupling model of pion and constituent quark fields. The imaginary part of the forward Compton scattering amplitude is evaluated. We show that the introduction of non-perturbative effects, linked through a cut-off to the size of the pion, allows the reproduction of important features of the pion quark distribution function. [less ▲]

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See detailTesting and modelling of welded joints between elliptical hollow sections
Bortolotti, E.; Jaspart, Jean-Pierre ULg; Pietrapertosa, C. et al

in Proceedings of the 10th International Symposium on Tubular Structures (2003)

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See detailDévelopper les collaborations entre les classes de l'enseignement fondamental et les bibliothèques publiques
Baye, Ariane ULg; Crepin, Françoise ULg; Hindryckx, Geneviève ULg et al

in Trefois, J. C. (Ed.) Lire ensemble : écoles et bibliothèques, vers des synergies nouvelles (2003)

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See detailKarsts en roches non carbonatées - l'exemple des quartzites et des itabérites de Minas Gerais, Brésil
Willems, Luc ULg; Rodet, Joël; Auler, Augusto et al

in Rodet, Joël (Ed.) Actes des Journées Européennes de l'AFK 2003 (2003)

The state of Minas Gérais, Brazil, contains numerous karsts booth inside carbonated and non carbonated rocks. Différent caves are found in quartzite and Itaberite formations (Banded Iron formation). The ... [more ▼]

The state of Minas Gérais, Brazil, contains numerous karsts booth inside carbonated and non carbonated rocks. Différent caves are found in quartzite and Itaberite formations (Banded Iron formation). The term karst is used in the meaning of "any features of the classical karst morphology (caves, sink-holes, lapies...) where dissolution plays the main genetically action and this in any kind of rocks". In some areas, lapiaz and kamenitza affect wide landscapes (area of Diamantina, Natural Parc of Rio Preto). Several caves are found and some of these are several kilomeetres long (grutta do Bromelias, Natural Parc of Ibitipoca). Inside caves, we found numerous forms like dissolution alveoli, spelothems, .... Many times, the cave sides and solutional forms are covered by crust which solidify a very crumbly quartzite. Différent morphologies show an primary solutional stage of the rocks before a physical erosional stage which destroy the earliest forms (piping, river érosion, collapsing). [less ▲]

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See detailGranulometría y Morfometría de Materiales Granulares por Metódos Ópticos
Pirard, Eric ULg

in Avila, Margot; Lucion, Christian (Eds.) Mineria, Metalurgia y Medio Ambiente (2003)

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See detailSimulation of tissue ingrowth and differentiation around a loaded titanium implant in a bone chamber,
Geris, Liesbet ULg; Van Oosterwyck; Vander Sloten, Jos et al

in Veraart, C.; Verdonck, P. (Eds.) Proceedings of the third national day on biomedical engineering (2003)

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See detailThe novel somatostatin analog SOM230 has a broad spectrum of inhibitory action on hormone release by human somatotroph, corticotroph and PRL-secreting pituitary adenomas in vitro
Hofland, L. J.; Van Der Hoek, J.; Van Koetsveld, P. M. et al

in The 85th Annual Meeting of the Endocrine Society - Abstract book (2003)

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See detailEspace construit
Frankignoulle, Pierre ULg

in Lask, Tomke (Ed.) Constructions sociales de l'espace. Les territoires de l'anthropologie de la communication. (2003)

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See detailLes méthodes particulières de recherche - Aperçu de la loi du 6 janvier 2003
Jacobs, Ann ULg

in Masset, Adrien; Jacobs, Ann (Eds.) Actualités de droit pénal et de procédure pénale (2003)

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See detailUtilisation pédagogique d'Internet dans l'enseignement secondaire : pourquoi et comment utiliser Internet à des fins pédagogiques ? Comment évaluer l'acquisition de compétences chez les élèves ?
Hubert, Sylviane; Massart, Valérie ULg

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

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See detailSeismic performance of ductile steel moment resisting frames designed according to Eurocode 3 and Eurocode 8. First step for Eurocode 8 calibration.
Sanchez, L.; Plumier, André ULg

in Proceedings of the STESSA 2003 Conference (2003)

The paper discusses the components of reduction factor to be accounted for design purposes. A parametric study of moment resisting steel frames (MRSF) designed according Eurocode 3 (EC3) and Eurocode 8 ... [more ▼]

The paper discusses the components of reduction factor to be accounted for design purposes. A parametric study of moment resisting steel frames (MRSF) designed according Eurocode 3 (EC3) and Eurocode 8 (EC8) is performed. The structural supply of the designed structures exceeds largely the seismic demand in spite of the fact that Ultimate Limit State (ULS) verification of EC8 for MRSF is not conservative. The structural performance is poorly correlated with ULS verification of EC8 but with others code restrains and with parameters like base shear ratio or fundamental period. The practice that deduces the values of reduction factor on the observation of structural performance under past earthquake is not rationally based. This practice tends to make useless the ULS verification for structural systems like MRSF, in which structural performance is poorly correlated with the ULS verification. This practice is responsible of the unsafe values of reduction factors assigned in the seismic codes. [less ▲]

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See detailL'iconographie du meurtre de saint Lambert de Liège
George, Philippe ULg

in Bischofsmord im Mittelalter. Murder of Bishops, 22 septembre 2000 (2003)

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See detailNon-adiabatic Pulsational Observables in Scuti and Doradus Stars: a Comparison of Different Numerical Codes
Moya, A.; Garrido, R.; Dupret, Marc-Antoine ULg

in Asteroseismology Across the HR Diagram (2003)

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See detailEnquête sur les habitudes et les attitudes de lecture des jeunes de 14-15 ans en Communauté française de Belgique
Lafontaine, Dominique ULg

in Actes du 4e congrès international de la recherche en éducation et formation, AECSE, Lille, 2001 (2003)

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See detailInfluence of social and non-social environmental enrichment on the behaviour of caged rabbits.
Vandenheede, Marc ULg; Halloy, D.

in Ferrante, V. (Ed.) Proceedings of the 37th International Congress of the International Society for Applied Ethology (2003)

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See detailThe Tricolor incident: Pathology, age composition and sex ratio of stranded birds
Jauniaux, Thierry ULg; Masure, S.

in meeting report (2003)

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See detailLa mission pénale de l'auditorat du travail: un mouvement de balancier
Kefer, Fabienne ULg

in Espace judiciaire et social européen (2003)

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See detailLes interactions entre l'homme et les animaux familiers : quelques champs d'investigation et réflexions méthodologiques
Servais, Véronique ULg; Millot, Jean-Louis

in Baudouin, Claude (Ed.) L'éthologie appliquée aujourd'hui. Tome 3, l'éthologie humaine (2003)

Le paper synthetizes the main studies in the field of human-animal interactions and points to some pitfalls in the methodologies of many researches.

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See detailFeeding behaviour of weaned pigs fed either pellets or meal: effects of the number of aniamls per feeding place
Laitat, Martine ULg; Vandenheede, Marc ULg; Desiron, Alain et al

in Ferrante, V. (Ed.) Proceedings of the 37th International Congress of the International Society for Applied Ethology (2003)

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See detailMise au point d’une procédure de caractérisation quantitative des surfaces démolies en béton en vue de travaux de réfection
Bélair, Normand; Bissonnette, Benoît; Courard, Luc ULg

in Progression de la recherche québécoise sur les ouvrages d'art (2003)

Cet article présente l’état d’avancement d’un projet visant le développement et la validation d’une technique permettant de caractériser de façon quantitative l’intégrité mécanique d’une surface en béton ... [more ▼]

Cet article présente l’état d’avancement d’un projet visant le développement et la validation d’une technique permettant de caractériser de façon quantitative l’intégrité mécanique d’une surface en béton préparée (démolie) aux fins de travaux de réfections superficielles. Dans un premier temps, une étude de l’influence des variables de base (taille des pastilles métalliques, profondeur de forage, nature de l’adhésif, etc.) relatives à l’essai d’arrachement sur la cohésion du béton a été réalisée afin d’optimiser la procédure expérimentale. De plus, les performances comparatives de deux dispositifs d’essai disponibles commercialement ont été évaluées afin d’identifier l’appareil le mieux adapté (facilité et rapidité d’exécution, efficacité, reproductibilité, coût, etc.). Afin de valider le protocole expérimental retenu et d’évaluer quantitativement les effets du mode de démolition, des essais d’arrachement ont été réalisés en laboratoire sur une série d’éléments en béton dont la surface a été préparée au moyen de différentes méthodes de préparation, notamment le marteau pneumatique, la scarification, le jet de sable et le jet d’eau. Une technique de caractérisation quantitative de la rugosité de surface a également été élaborée. Sur la base de ces essais, il est possible d’établir l’influence du mode de démolition sur l’intégrité mécanique de la surface obtenue et d’émettre des recommandations préliminaires. [less ▲]

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See detailRéflexions sur l'anthropologie du temps: Le cas de l'Egypte ancienne. Questions et méthodes
Winand, Jean ULg

in Pirenne, Vinciane (Ed.) Représentations du temps dans les religions (2003)

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See detail“Dramatising the Verse or Versifying the Drama: Rita Dove’s The Darker Face of the Earth: A Verse Play.”
Bada, Valérie ULg

in Phillips, Kimberley L.; Pinson, Hermine D.; Lorenzo, Thomas (Eds.) et al Critical Voicings of Black Liberation. Resistance and Representations in the Americas (2003)

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See detailThe architectural sketch and the concept of the absent interface
Leclercq, Pierre ULg

in Proceedings of theInternational Conference on Industrial Engineering and Production Management (2003)

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See detailAbsent Sketch Interface in Architectural Engineering
Leclercq, Pierre ULg

in Proceedings of the 5th IAPR International Workshop on Graphics Recognition (2003)

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See detailFengycin penetration into a DPPC monlayer: a study using the Langmuir trough technique with the Brewster angle microscopy
Deleu, Magali ULg

in International symposium on surface and colloid chemistry for the life sciences (2003)

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See detailAn empirical comparison of machine learning algorithms for generic image classification
Marée, Raphaël ULg; Geurts, Pierre ULg; Visimberga, Giorgio et al

in Proceedings of the 23rd SGAI international conference on innovative techniques and applications of artificial intelligence, Research and development in intelligent systems XX, (2003)

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See detailPotential valorization of the fine light fraction of automotive shredder residues (ASR)
Bareel, Pierre-François; Bastin, David ULg; Frenay, Jean ULg

in Proceedings of the International Symposium of Metals and Energy Recovery (2003)

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See detailLa filière Porc Fleuri : vers une appellation d'origine protégée
Berti, Fabio ULg; Beduin, Jean-Marie ULg; Verleyen, Vincent ULg et al

in Huitième Carrefour des Productions animales "L'avenir des filières de qualité différenciées" (2003)

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See detailEmotional Processing in Down Syndrome
Catale, Corinne ULg; Hogge, Michaël; Meulemans, Thierry ULg et al

in Books of Abstracts: 13th conference of the European Society for Cognitive Psychology (2003)

In addition to mental retardation, Down Syndrome (DS) children present emotional deficits. Some authors have suggested that the emotional deficits observed in DS can be related to developmental changes ... [more ▼]

In addition to mental retardation, Down Syndrome (DS) children present emotional deficits. Some authors have suggested that the emotional deficits observed in DS can be related to developmental changes. However, the link between emotion and cognitive processing remains unclear.This study aims to assess the relationships between emotional and cognitive processing in DS children. More specifically, we wanted to assess whether cognitive development could predict emotional deficits. Eighteen children DS and 18 chronological age-matched (CA) children were presented with emotional tasks designed to tap their abilities (i) to label emotion through emotional faces and prosody, (ii) to attribute, from stories, cognitive and emotional states to characters and (iii) to process face identity and gaze behaviour. Cognitive functioning was assessed including attentional treatment, visuo-spatial working memory, receptive language and logical reasoning. The results confirmed that DS performed worse on both cognitive and emotional tasks than CA children. There are also strong correlations between cognitive (including language and logical reasoning measures) and emotional measures. These results suggest that emotional troubles in DS are related to their global cognitive development; they also suggest that the degree of mental retardation can predict the importance of emotional deficits in DS. [less ▲]

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See detailT cell subsets in the respiratory tract of dogs without respiratory disease : preliminary results.
Peeters, Dominique ULg; Day, M. J.; Moore, P. et al

in Proceedings of the 13th Annual Congress of the ECVIM-CA (2003)

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See detailLe cabotin sublime et les pisse-froid. Sartre, Hugo et la modernité
Denis, Benoît ULg

in Prévost, Maxime; Hamel, Yan (Eds.) Victor Hugo 2003-1802. Images et transfigurations (2003)

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See detailEffect of cooling on the behaviour of a steel beam under fire loading including the end joint response
Simoes da Silva, Luis; Santiago, Aldina; Vila Real, Paulo et al

in Proceedings of the 9th International Conference on Civil and Structural Engineering Computing (2003)

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See detailFaire mentir les prédictions en 1ère candidature : comment ? Avec quel résultat ? L'opération RESSAC (Résultats d'Epreuves Standardisées au Service de l'Apprentissage en Candis)
Leclercq, Dieudonné ULg; Dupont, Chantal ULg; Detroz, Pascal ULg et al

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

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See detailThe effect of race training on biochemical bone markers in young thoroughbreds
Carstanjen, B; Lepage, OM; Sulon, J et al

in Proceedings of the 13th annual scientific meeting of the ECVS (2003)

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See detailImpacts of management strategies on nutrient fluxes in a temperate Picea abies (L. Karst) plantation
Carnol, Monique ULg

in Jansen, Jörg; Spiecker, Heinrich; von Teuffel, Konstantin (Eds.) Berichte Freiburger Forstliche Forschung, Heft 47, The question of conversion of coniferous forests, Abstracts, International Conference, 27 Septembre - 02 october, 2003, Freiburg im Breisgau, Germany (2003)

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See detailDu texte de circonstance au recueil de Situations. L’économie de l’écriture engagée chez Jean-Paul Sartre
Denis, Benoît ULg

in Langlet, Irène (Ed.) Le Recueil littéraire. Pratiques et théorie d’une forme (2003)

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See detailDes principes du développement durable à l'écobilan de l'exploitation agricole
Debouche, Charles ULg

in Fagroud, Mustapha; Debouche, Charles; Debbarh, Abdelhafid (Eds.) et al Equilibre Agriculture-Environnement : Enjeux, outils et perspectives du conseil agricole (2003)

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See detailLa qualité différenciée
Burny, Philippe ULg

in Centre de Recherches agronomiques de Gembloux (CRA) (Ed.) 3ème journée Productions porcines et avicoles "Vers une politique de qualité, à quel prix ?", Gembloux, 8 octobre 2003 (2003)

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See detailElevated atmospheric CO2 influences ammonia oxidiser community structure and net nitrification
Carnol, Monique ULg; Malchair, Sandrine ULg

in International Symposium: Structure and Function of Soil Microbiota, Philipps-University Marburg, Germany, September 18-20, 2003 (2003)

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See detailSoft tissue imaging of the palmar aspect of the equine podotrochlear apparatus.
Busoni, Valeria ULg; Lahaye, B.; Jamar, M. et al

in Proceedings IVRA (2003)

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See detailRapport de l'atelier sur le thème 'Les technologies de l'information et de la communication dans l'enseignement : pour quoi faire ?'
Leclercq, Dieudonné ULg

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

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See detailNumerical simulations of tissue ingrowth and differentiation around a loaded titanium implant in a bone chamber
Van Oosterwyck, Hans; Geris, Liesbet ULg; Vander Sloten, Jos et al

in Proceedings of the symposium on integrated systems in dental healthcare (2003)

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See detailSegregation of the bulk blend fertilizers
Miserque, Olivier; Pirard, Eric ULg

in Esbensen, Kim (Ed.) First World Conference on Sampling and Blending (2003)

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See detailQualitative survey of five beech damaging coleoptera (Scolytidae and Lymexylonidae) in Wallonia (Southern Belgium)
Henin, Jean-Marc; Huart, Olivier; Lejeune, Philippe ULg et al

in McManus, M. L.; Liebhold, A. M. (Eds.) Proceedings Ecology, Survey and Management of Forest Insects (2003)

In 2000 and 2001, Trypodendron domesticum L. and T. signatum (F.) (Col.: Scolytidae) were one of the main causes of the depreciation of more than 1,600,000 m³ of standing beech trees, Fagus sylvatica L ... [more ▼]

In 2000 and 2001, Trypodendron domesticum L. and T. signatum (F.) (Col.: Scolytidae) were one of the main causes of the depreciation of more than 1,600,000 m³ of standing beech trees, Fagus sylvatica L., in Wallonia (Southern Belgium). In 2001, a survey aiming at assessing the range of those indigenous ambrosia beetles, so far discreet and poorly studied, pointed out that they are omnipresent all over Wallonia. Two other scolytids and one lymexylonid (Col., Lymexylonidae) were also frequently caught, which made it possible to outline their regional distribution too. [less ▲]

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See detailMode Identification and Seismic Modelling of the Cep Star EN(16)Lac
Aerts, C.; Lehmann, H.; Scuflaire, Richard ULg et al

in Asteroseismology Across the HR Diagram (2003)

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See detailEvaluation de la présence des Syrphidae en cultures maraîchères et relation avec les populations aphidiennes.
Francis, Frédéric ULg; Colignon, Pierre; Gaspar, Charles et al

in Abstract book (2003)

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See detailFormer des étudiants de première candidature universitaire à des compétences transversales : lesquelles et comment ?
Leclercq, Dieudonné ULg

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

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See detailDysregulation of inflammation
Bureau, Fabrice ULg; Lekeux, Pierre ULg

in Hoffman, A.; Robinson, N. E.; Wade, J. F. (Eds.) Proceedings of a Workshop on “Inflammatory Airway Disease: Defining the Syndrome”, Havemeyer Foundation Monograph Series No. 9 (2003)

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See detailMale hypogonadism caused by insolated LH deficiency : From pathology to gene, from gene to physiology
Valdes Socin, Hernan Gonzalo ULg; Salvi, R.; Pralong, F. et al

in 8th International Pituitary Congress - Abstract book (2003)

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See detailDéveloppement de la compétence orale en anglais par l'optimisation des stratégies de communication
Simons, Germain ULg

in Actes du 2e congrès des chercheurs en éducation. L'Ecole, dans quel(s) sens ? (2003)

Cette communication retrace les grandes étapes d'un programme de recherche collaborative, menée entre 2000 et 2002, portant sur l'optimisation de la compétence orale en anglais/langue étrangère dans l ... [more ▼]

Cette communication retrace les grandes étapes d'un programme de recherche collaborative, menée entre 2000 et 2002, portant sur l'optimisation de la compétence orale en anglais/langue étrangère dans l'enseignement secondaire de la Communauté française de Belgique. Après avoir décrit le contexte général de cette recherche-action, nous proposons une définition opérationnelle du concept "stratégie de communication" et précisons les questions de recherche. Puis, nous décrivons le schéma expérimental et mentionnons les principaux résultats obtenus. Enfin, nous concluons avec des perpectives quant à la poursuite de cette recherche, entre autres, l'élaboration d'un outil de formation et de diffusion, qui était en cours d'élaboration au moment où nous avons présenté cette communication. [less ▲]

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See detailLes traitements futurs en allergologie chez le cheval
Bureau, Fabrice ULg; Lekeux, Pierre ULg

in Congrès de l'Association Vétérinaire Equine Française (AVEF) (2003)

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See detailVLT Observations of two Unusual BAL Quasars
Hall, Patrick; Hutsemekers, Damien ULg

in Active Galactic Nuclei: From Central Engine to Host Galaxy. ASPC 290 (2003)

The SDSS has confirmed the existence of populations of broad absorption line quasars with extreme properties. I will discuss the discovery of redshifted absorption troughs (confirmation of a rotating disk ... [more ▼]

The SDSS has confirmed the existence of populations of broad absorption line quasars with extreme properties. I will discuss the discovery of redshifted absorption troughs (confirmation of a rotating disk wind?), absorption from FeIII but not FeII (a very large column density of moderately ionized gas?), extremely reddened objects (extinction curves even steeper than that of the SMC), objects with overlapping troughs that remove 90% of the flux below MgII, and two mysterious objects which may or may not be unusual BALs. Implications of these objects for quasar and BAL outflow models will be discussed, along with preliminary results of various followup observations. [less ▲]

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See detailL'opération RESSAC : diagnostic métacognitif avant la période de 'bloque'
Leclercq, Dieudonné ULg; Detroz, Pascal ULg; Dupont, Chantal ULg et al

in Actes du 16ème colloque international de l'ADMEE-Europe, 4-6 septembre 2003 (2003)

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See detailConclusions fictives. Comment peut-on être francophone?
Demoulin, Laurent ULg

in Bertrand, Jean-Pierre; Gauvin, Lise (Eds.) Littérature mineures en langue majeure: Québec/Wallonie-Bruxelles (2003)

Comparaison de l'attitude critique des spécialistes de la littérature belge et des spécialistes de la littérature québécoise.

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See detailEtude rétrospective des causes médicales d’intolérance à l’effort chez 345 chevaux
Ponthier, Jérôme ULg; Van Erck, Emmanuelle; Art, Tatiana ULg et al

in Proceedings du Congrès de l'Association Vétérinaire Equine Française (AVEF) (2003)

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See detailVision d'acteurs : le Conseil supérieur wallon des forêts et de la filière bois
Rondeux, Jacques ULg

in Actes du colloque "Le droit international dans le domaine de l'environnement. Quelles implications pour la région wallonne ?" (2003)

9 organes consultatifs wallons concernés par les matières environnementales ont décidé de mettre sur pied une journée de réflexion sur le droit international dans le domaine de l'environnement. L'objectif ... [more ▼]

9 organes consultatifs wallons concernés par les matières environnementales ont décidé de mettre sur pied une journée de réflexion sur le droit international dans le domaine de l'environnement. L'objectif est de donner une vision d'ensemble du droit international existant et en projet dans ce domaine et d'en cerner les implications pour la Région wallonne. [less ▲]

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See detailAnalisis Mineralogico Cuantitativo
Pirard, Eric ULg

in Avila, Margot; Lucion, Christian (Eds.) Mineria, Metalurgia y Medio Ambiente (2003)

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See detailShort-term effect on plasma and milk selenium and blood glutathion peroxydase oh feeding selenium-enriched haylage to Holstein-Friesian cows
de Behr, V.; Coenen, M.; Cabaraux, Jean-François ULg et al

in Proceedings of 7th Conference of the European Society of Veterinary and Comparative Nutrition (2003)

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See detailComplex Hydrogeological Study of the Alluvial Transboundary Aquifer of Szamos/Somes (Romania-Hungary)
Lenart, Laszlo; Madarasz, Tamas; Miko, Lajos et al

in Water resources management in the 21th century. Subtheme 4, Relevance and sustainability of the intensive groundwater developments (2003)

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See detailStochastic modelling of the hydrogeological environment in low permeability sediment
Huysmans, Marijke; Berckmans, Arne; Feyen, Luc et al

in Proceedings of IAMG 2003 (2003)

In Belgium, the Boom Clay is being considered as a potential host formation for the disposal of nuclear waste. Part of the safety assessment and feasibility studies of a potential nuclear waste disposal ... [more ▼]

In Belgium, the Boom Clay is being considered as a potential host formation for the disposal of nuclear waste. Part of the safety assessment and feasibility studies of a potential nuclear waste disposal consists of hydrogeological modeling. In order to model the groundwater flow and possible radionuclide transport in the clay, the spatial distribution of the hydraulic conductivity of the clay has to be assessed. In this study, geostatistical methods are used to characterize the hydraulic conductivity field. More specific, direct sequential simulation of the hydraulic conductivity is carried out, using measurements of hydraulic conductivity and 4 types of soft data or secondary variables: resistivity logs, gamma ray logs, grain size measurements and descriptions of the lithology. The primary and secondary information is analyzed with geostatistical tools and combined to generate 100 fields of the hydraulic conductivity of the Boom Clay. Next, each field is input to a groundwater flow model to predict the advective travel time of constituents released from the disposed waste in the Boom Clay to the aquifers surrounding the Boom Clay. Statistical analysis of the ensemble of model predictions results in a predictive distribution for the advective travel time. This distribution reflects the uncertainty of the advective travel time that results from the uncertainty of the spatial distribution of the hydraulic conductivity of the Boom Clay [less ▲]

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See detailManagement of hypercalcemia from Parathyroid Carcinoma by immunisation
Betea, Daniela ULg; Bradwell, A. R.; Valdes Socin, Hernan Gonzalo ULg et al

in 6th European Congress of Endocrinology - Abstract book (2003)

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See detailMale hypogonadism caused by insolated LH deficiency : From pathology to gene, from gene to physiology
Valdes Socin, Hernan Gonzalo ULg; Salvi, R.; Pralong, F. et al

in The 85th Annual Meeting of the Endocrine Society - Abstract book (2003)

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See detailOn-axis VLT spectroscopy of quasar host galaxies: HE 1503+0228, at z=0.135
Courbin, F.; Letawe, Géraldine ULg; Magain, Pierre ULg et al

in Active Galactic Nuclei: From Central Engine to Host Galaxy (2003)

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See detailQu'il est long le chemin vers l'équité...
Lafontaine, Dominique ULg

in L'école, dans quel(s) sens ? Actes du 2e Congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

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See detailLong-term prognosis of congestive heart failure in patients with acromegaly
Bihan, H.; Valdes Socin, Hernan Gonzalo ULg; Levasseur, S. et al

in The 85th Annual Meeting of the Endocrine Society - Abstract book (2003)

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See detailL'efficacité au prix de l'hétérogénéité : une approche comparative
Lafontaine, Dominique ULg

in Actes du colloque organisé par le Conseil de l'Education et de la Formation (2003)

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See detailCombining stochastic simulations and inverse modelling for delineation of groundwater well capture zones
Rentier, Céline; Roubens, Marc ULg; Dassargues, Alain ULg

in Iu (Ed.) Computational Methods in Engineering and Science (2003)

In hydrogeology, protection zones of a spring or a pumping well are often delimited by isochrones that are computed using calibrated groundwater flow and transport models. In heterogeneous formations, all ... [more ▼]

In hydrogeology, protection zones of a spring or a pumping well are often delimited by isochrones that are computed using calibrated groundwater flow and transport models. In heterogeneous formations, all direct and indirect data, respectively called hard and soft data, must be used in an optimal way. Approaches involving in situ pumping and tracer tests, combined with geophysical and/or other geological observations, are developed. In a deterministic framework, the calibrated model is considered as the best representation of the reality at the current investigation stage, but result uncertainty remains unquantified. Using stochastic methods, a range of equally likely isochrones can be produced allowing to quantify the influence of our knowledge of the aquifer parameters on protection zone uncertainty. Furthermore, integration of soft data in a conditioned stochastic generation process, possibly associated with an inverse modeling procedure, can reduce the resulting uncertainty. A stochastic methodology for protection zone delineation integrating hydraulic conductivity measurements (hard data), head observations and electrical resistivity data (soft data) is proposed. [less ▲]

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See detailDevelopment of a database linked to a GIS for coupling with groundwater modelling tools
Ruthy, Ingrid ULg; Orban, Philippe ULg; Gogu, Radu Constantin et al

in Iu (Ed.) Computational Methods in Engineering and Science (2003)

Groundwater analysis strongly depends on the availability of large volumes of high-quality data. Putting all data in a coherent and logical structure supported by a computing environment helps ensure ... [more ▼]

Groundwater analysis strongly depends on the availability of large volumes of high-quality data. Putting all data in a coherent and logical structure supported by a computing environment helps ensure validity and availability and provides a powerful tool for hydrogeological studies. A hydrogeological Geographical Information System (GIS) database that offers facilities for hydrogeological modeling has been designed in Belgium for the Walloon Region. Interest is growing in the potential for integrating GIS technology and groundwater simulation models. A “loose-coupling” tool was created between the spatial database scheme and the groundwater numerical model interface GMS© (Groundwater Modeling System). Following time and spatial queries, the hydrogeological data stored in the database can be easily used within different groundwater numerical models. [less ▲]

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See detailMicrofabrication of gold wires for atom guides
Koukharenko, Elena; Moktadir, Zakaria; Bagnall, D. et al

in Eurosensors XVII, 17th European Conference on Solid-State Transducers (2003)

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See detailDétermination du régime hydrodynamique dans une colonne à bulles par tomographie électrique résistive
Marchot, Pierre ULg; Fransolet, Emmanuelle; L'Homme, Guy ULg et al

in Legrand, J. (Ed.) Récents Progrès en Génie des procédés - N°90 - Du rayonnement scientifique à la diffusion des technologies - Actes du 9ème Congrès de la Société Française de Génie des Procédés, 9-11 septembre 2003, Saint-Nazaire, France (2003)

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See detailQuelques réflexions à propos des possibilités d'analyses dendrochronologiques de châteaux de pierre du sud-est de la Belgique
Hoffsummer, Patrick ULg

in Poisson, Jean-Michel; Schwein, Jean-Jacques (Eds.) Le bois dans le château en pierre au Moyen Âge (2003)

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See detailBauforschung et dendrochronologie
Hoffsummer, Patrick ULg

in De Jonge, Krista; Van Baelen, Koen (Eds.) Preparatory Architectural Investigation in the Restauration of Historical Buildings (2003)

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See detailQuasi 2D-numerical model of aerated flow over stepped chutes
André, Stéphanie; Dewals, Benjamin ULg; Pirotton, Michel ULg et al

in Proc. 30th IAHR Congress (2003)

Aerated flow over stepped chutes is principally studied on laboratory models. Consequently, the obtained design relations have a limited field of application. In order to propose a more general ... [more ▼]

Aerated flow over stepped chutes is principally studied on laboratory models. Consequently, the obtained design relations have a limited field of application. In order to propose a more general description of the flow, a quasi-2D numerical model is developed. The fluid is considered as an air-water mixture governed by the shallow-water equations. Moreover, a transport equation for air concentration represents the self-aeration of the flow and a coefficient of uneven vertical velocity distribution integrates indirectly the turbulent structures. The paper includes a brief description of the flow behaviour, the quasi-2D model equations, and a comparison of the numerical results with the measured flow characteristics in a 30° stepped flume. [less ▲]

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See detailEncurvada lateral de vigas metalicas sujeitas a acçao do fogo: uma nova proposta de calculo simples complementar ao EC3
Vila Real, P.; Lopes, N.; Simoes da Silva, L. et al

in Lamas; Calado; Ferreira (Eds.) et al Proceedings of the Congresso de Construçao Metallica e Mista (2003)

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See detailInsert'Prof : pour un dispositif d'accompagnement des jeunes enseignants favorisant une insertion réussie dans la vie professionnelle
Beckers, Jacqueline ULg; Andrianne, Sabine; Bourguignon, Luc et al

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

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See detailSolid lipid Nanoparticles for drug Pumonary Administration
Sanna, Vanna; Kirschvink, Nathalie; Gustin, Pascal ULg et al

in Proceedings of 30th International Symposium on Controlled Release of Bioactive Materials (2003)

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See detailGAIA and the spectroscopic binaries: what to expect in terms of orbit determination?
Pourbaix, D.; Jancart, Sylvie ULg

in GAIA Spectroscopy: Science and Technology (2003)

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See detailInfluence de la substitution du tourteau de soja par des graines de lupin, avec ou sans complément d'alpha-galactosidase, sur la digestibilité des régimes et la rétention azotée du porc en croissance
Froidmont, Eric; Schoeling, Olivia; Deliège, Françoise et al

in Journées Recherche Porcine (2003)

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See detailOptimising a cascade of hydroelectric power stations with the WOLF package
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

in Brebbia, C. A. (Ed.) Water Ressources Management (2003)

Original free-surface flow solvers have been developed by the HACH during the last years. The resulting fully integrated WOLF package allows engineers to study a very wide range of free surface flows ... [more ▼]

Original free-surface flow solvers have been developed by the HACH during the last years. The resulting fully integrated WOLF package allows engineers to study a very wide range of free surface flows situations. Successful and accurate computations are performed for phenomena as various as hydrological run-offs and dam breaking in quasi 3 dimensions including solid transport effects, as well as rivers networks modelling with explicit exchanges between river paths. All the models, physically based, use efficient and original numerical methods to solve continuous or discontinuous free-surface flow equations. They handle structured or unstructured grids with both first and second order accurate explicit or implicit algorithms in time and space. WOLF also includes powerful user-friendly pre- and post-processing with 2D and 3D animated visualizations as well as a parameters optimization software interconnected with all the package components and based on the innovating method of genetic algorithms. In this paper, the production of the hydroelectric power plants installed on a 60 km long section of the rivers Amblève and Warche in Belgium is presented in details to illustrate the numerical calculation and optimization process. The river network is modeled using real natural topographic data. Hydrological balance is closed and roughness coefficients are calibrated from water level and discharge field measurements. Hydroelectric production is optimized by an automatic calibration of the parameters of the hydrogram injected in the network from the Robertville dam. This approach leads to a substantial gain in both hydroelectric production and financial benefits and deals with all management and security criteria. [less ▲]

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See detailEvolution de la consommation de viande bovine en Belgique
Duquesne, Brigitte ULg; Lebailly, Philippe ULg

in 10 èmes Rencontres, Recherche, Ruminants (2003)

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See detailSedimentology of the Frasnian carbonate platform of Belgium, Facies and magnetic susceptibility
Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg

in Abstract book 12th Bathurst meeting of carbonate sedimentologists (2003)

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See detailExternal quality grading of Jonagold apples using a multi-spectral vision system
Kleynen, Olivier; Leemans, Vincent ULg; Destain, Marie-France ULg

in Balsa-Canto E., Mora J.; Onate E. (Eds.) II International Workshop - Information Technologies and Computing Techniques for the Agro-Food Sector (2003)

This paper presents a method to sort Jonagold apples using a four bands multi-spectral image acquisition device. Multi-spectral images of sound tissue and various defects were acquired. Defects could be ... [more ▼]

This paper presents a method to sort Jonagold apples using a four bands multi-spectral image acquisition device. Multi-spectral images of sound tissue and various defects were acquired. Defects could be divided into four classes: slight defects (e.g. small russet), more serious defects (scar tissue), defects leading to the rejection of the fruit (e.g. rot) and recent bruises (between one hour and two hours old). Image segmentation was based on the Bayes' theorem. Each pixel of the fruit was classified into 'healthy' or 'defect' classes according to the probability distribution of the spectral components of each class. Once segmented, the fruit was graded by linear discriminant analysis on the basis of the relative area of the defect and statistical parameters computed on the spectral components of the two tissues classes. Results (cross validation) showed 94% and 84% if the sound and defective fruits respectively well classified. Most of the misclassified defective fruits (89%) belonged to the slight defect category. [less ▲]

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See detailSearch for X-ray Variability in Early-type Stars in the Carina OB1 Association with XMM-Newton
Antokhin, I. I.; Rauw, Grégor ULg; Vreux, Jean-Marie ULg et al

in Astronomical Society of the Pacific Conference Series (2003)

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See detailPreliminary results from XMM-Newton observations of the massive Wolf-Rayet binary WR 22 (WN7h+O9III-V)
Gosset, Eric ULg; Rauw, Grégor ULg; Vreux, Jean-Marie ULg et al

in A Massive Star Odyssey: From Main Sequence to Supernova (2003)

We present preliminary results from observations of the massive WR+O binary WR 22 performed with the XMM observatory. The star is brighter in the X-ray domain near apastron and fainter at periastron. The ... [more ▼]

We present preliminary results from observations of the massive WR+O binary WR 22 performed with the XMM observatory. The star is brighter in the X-ray domain near apastron and fainter at periastron. The change in brightness is very progressive and mainly corresponds to a lowering of the soft part of the spectrum. [less ▲]

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See detailA high-order, high-frequency method for surface scattering by convex obstacles
Bruno, O.; Geuzaine, Christophe ULg

in Proceedings of the 14th Conference on the Computation of Electromagnetic Fields, COMPUMAG 2003 (2003)

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See detailElectromagnetic waves in periodic structures
Guenneau, S.; Nicolet, A.; Geuzaine, Christophe ULg et al

in Proceedings of the Eleventh International Symposium on Applied Electromagnetics and Mechanics, ISEM 2003 (2003)

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See detailRadio continuum observations of massive stars in open cluster NGC 6231 and the Sco OB1 association
Setia Gunawan, Diah Y A; Chapman, Jessica M; Stevens, Ian R et al

in A Massive Star Odyssey: From Main Sequence to Supernova (2003)

We present results of the Australia Telescope Compact Array (ATCA) radio continuum observations of massive stars in the Sco OB1 association. Most stars detected in the program show spectral indices lower ... [more ▼]

We present results of the Australia Telescope Compact Array (ATCA) radio continuum observations of massive stars in the Sco OB1 association. Most stars detected in the program show spectral indices lower than value expected from thermal free-free emission. [less ▲]

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See detailThe Hybrid Scalar and Vector Potential Formulation for Magnetic Field Computations by means of the FE Method
Gyselinck, J.; Vandevelde, L.; Geuzaine, Christophe ULg et al

in Proceedings of the 14th Conference on the Computation of Electromagnetic Fields, COMPUMAG 2003 (2003)

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See detailA stepwise approach for chemical risks assessment at the workplace
Mairiaux, Philippe ULg; Balsat, Alain; Dujardin, Marc ULg et al

in Strasser, H.; Kluth, K.; Rausch, H. (Eds.) et al Quality of work and products in enterprises of the future (2003)

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See detailLa violence des jeunes en regard des nouvelles socialisations
Born, Michel ULg

in Violence juvénile : nouvelles formes et stratégies locales - expériences à l'est et à l'ouest (2003)

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See detailLa dendrochronologie de l'architecture
Hoffsummer, Patrick ULg

in Au-delà de l'écrit: les hommes et leurs vécus matériels au Moyen Âge à la lumière des sciences et des techniques, nouvelles perspectives (2003)

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See detailUtilisation des techniques végétales pour la stabilisation des berges : suivi de chantiers réalisés dans différents types de rivières wallonnes.
Hallot, Eric ULg; Petit, François ULg; Verniers, G. et al

in Evaluer le milieu - Journées des géographes belges (2003)

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See detailPion Structure Function and violation of the Momentum Sum Rule
Lansberg, Jean-Philippe ULg; Bissey, F.; Cudell, Jean-René ULg et al

in Blin, A. H.; Hiller, B.; Ruivo, M. C. (Eds.) et al Hadron Physics: Effective Theories of Low Energy QCD N°2 (2003)

We present a method to evaluate the pion structure functions from a box diagram calculation. Pion and constituent quark fields are coupled through the simplest pseudoscalar coupling. The gamma^* pi -> q ... [more ▼]

We present a method to evaluate the pion structure functions from a box diagram calculation. Pion and constituent quark fields are coupled through the simplest pseudoscalar coupling. The gamma^* pi -> q \bar q cross-section is evaluated and related to the structure functions. We then show that the introduction of non-perturbative effects, related to the pion size and preserving gauge invariance, provides us with a straighforward relation with the quark distribution. It is predicted that higher-twist terms become negligible for Q^2 larger than about 2 GeV^2 and that quarks in the pion have a momentum fraction smaller than in the proton. We enlarge the discussion concerning this violation of the momentum sum rule, emphasizing that the sum rule is recovered in the chiral limit and also when the finite size condition is not imposed. [less ▲]

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