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See detailMarket dynamics driven by the decision-making power producers
Ernst, Damien ULg; Minoia, Anna; Marija, Ilic

in Proceedings of 2004 IREP Symposium - Bulk Power System Dynamics and Control - VI (2004)

In this paper we consider a tool for analyzing the market outcomes when competitive agents (power producers) interact through the market place. The market clearing mechanism is based on the locational ... [more ▼]

In this paper we consider a tool for analyzing the market outcomes when competitive agents (power producers) interact through the market place. The market clearing mechanism is based on the locational marginal price scheme. A model of the strategic behavior is formulated for the agents. Each agent chooses its bid in order to maximize its profit by assuming that the other agents will post the same bid as at the previous session of the market, and by knowing the network characteristics. The income of each agent over a certain temporal horizon for different power system configurations (the addition of new transmission capabilities, new power plants) is evaluated according to this market dynamics and by integrating this dynamics over the chosen temporal horizon. The mathematical formulation, for the sake of simplicity, is related to a two node power system. In the simulations, the influence of different conditions (line transfer capacity, the number and size of generators, the presence of portfolio) on market outcomes is analyzed, and interesting and sometimes counterintuitive results are found. [less ▲]

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See detailBootstrap Equations for String-Like Amplitude
Semenov-Tyan-Shanskiy, Kirill ULg

in Dubinin, M.; Savrin, V. (Eds.) High energy physics and quantum field theory. Proceedings, 18th International Workshop, QFTHEP 2004, St. Petersburg, Russia, June 17-23, 2004 (2004)

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See detailA case of Vitamin K3 induced renal toxicosis in a horse
Sandersen, Charlotte ULg; Cassart, Dominique ULg; Bertrand, P et al

in Tierärztliche Praxis Kleintiere (2004)

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See detailSolute contaminant transport in variably saturated dual-porosity/ dual permeability chalk: field tracer experiments and modelling
Brouyère, Serge ULg

in Aagaard, Per; Bedbur, Eckart; Bidoglio, Giovanni (Eds.) et al Saturated & unsaturated zone: integration of process knowledge into effective models - COST Action 629 Workshop (2004)

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See detailDesign and Simulation of a micromachined inertial sensors with higher-order single loop sigma-delta modulators
DONG, Y; Kraft, Michael ULg

in Proc. 6th Conf. on Modeling and Simulation of Microsystems (2004)

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See detailPeinture et publicité
Duchesne, Jean-Patrick ULg

in Actes de la 1ère journée interuniversitaire des didactiques d’histoire de l’art: Enseigner l’histoire de l’art. Un art et une histoire tournés vers le futur (2004)

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See detailLe sang, l’argent, l’information : allégorie des réseaux de communication dans Le Comte de Monte-Cristo
Durand, Pascal ULg

in IVe Actas do Congresso internacional da Associaçao Portuguesa de Literatura Comparada (2004)

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See detailUsing the Complete Nano Engineering Geological Spectrum to Assess the Performance of Clay Barriers
Schmitz, Robrecht; Schroeder, Christian ULg; Thorez, Jacques ULg et al

in Hack, Robert; Azzam, Rafig; Charlier, Robert (Eds.) Engineering Geology for Infrastructure Planning in Europe (2004)

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See detailConception et évaluation d’un cours en ligne destiné à améliorer les compétences de futurs enseignants en Education physique à l’analyse de tâche. Des savoirs techniques aux compétences pédagogiques.
Delfosse, Catherine ULg; Lenzen, Benoît; Cloes, Marc ULg

in Herphelin, M. (Ed.) Actes du 3ème Congrès des Chercheurs en Education. (Re)trouver le plaisir d'enseigner et d'apprendre. Construire savoirs et compétences (2004)

Ce cours utilise la plate-forme d’enseignement à distance WebCT et est accessible aux étudiants via Internet. Il s’adresse en priorité aux étudiants de 2ème candidature en éducation physique de ... [more ▼]

Ce cours utilise la plate-forme d’enseignement à distance WebCT et est accessible aux étudiants via Internet. Il s’adresse en priorité aux étudiants de 2ème candidature en éducation physique de l’Université de Liège mais pourrait être utilement proposé aux enseignants en formation continuée voire aux entraîneurs. Ce cours a été conçu dans le cadre du DES Formasup en Pédagogie Universitaire de l’Université de Liège, orientation EAD (enseignement à distance) par Benoît Lenzen, Assistant au Département des APS, en collaboration avec le LabSET (Laboratoire de Soutien à l’Enseignement Télématique). Ce travail constitue la première étape d’une réflexion plus large entamée sur la liaison entre apprentissage théorique et travail de terrain. [less ▲]

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See detailExtended Thermodynamic Description of Thermodiffusive Mass Transport
Lebon, Georgy ULg; Desaive, Thomas ULg; Dauby, Pierre ULg et al

in Proc. 6 th Int. Meeting on Thermodiffusion (IMT6), Varenna, July 2004 (2004)

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See detailDifférences liées au sexe : l'école en relation avec son environnement
Lafontaine, Dominique ULg; Blondin, Christiane ULg

in Actes du XVIe colloque international de l'Admée-Europe, Liège, 4-6 septembre 2003 (2004)

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See detailSimplification of milk recording in dairy cattle for low input systems.
Hammami, Hedi ULg; Romdhani, Sonia Bedhiaf; Djemali, M'naouer et al

in Guellouz, Mustapha; Dimitriadou, Andie; Mosconi, Cesare (Eds.) Performance recording of animals. State of the art, 2004 (2004)

The simplification of recording procedures constitutes an economic alternative to reduce operational costs when national recording programs are concerned in low input production systems. A total of 54 940 ... [more ▼]

The simplification of recording procedures constitutes an economic alternative to reduce operational costs when national recording programs are concerned in low input production systems. A total of 54 940 daily milk yields from a herd of 63 Holstein cows recorded in 3 years were used in this study. The effect of reducing tests to measure the accuracy of 305 milk yields was investigated. Two methods of total milk yield computation (the Test Interval Method (TIM) and the Interpolation using Standard Lactation Curves (ISLC)) were compared based on 495 combinations of milk recording alternatives. These alternatives were based on 2 milkings/day, one alternated milking (AM/PM) and one non-alternated milking (AM or PM). All of them were used with 9 intervals between consecutive tests (3 to 11 weeks) and 11 intervals between calving date and the first test day. Results showed that the differences between the actual 305 d milk yield and milk estimated by TIM were the smallest on consecutive test days of maximum 6 weeks of intervals. Differences increased in both sides positively back to A3 and negatively toward A11. Standard estimation errors increased from 4 to 9 from A3 to A11. Phenotypic correlations decreased from .99 to .94 when intervals between the calving date and the first test day increased and this for all test methods (A3-A 11). The ISLC led to a better accuracy of milk yield estimation when intervals between consecutive tests got longer. [less ▲]

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See detailPregnancy-associated glycoproteins (PAG) in postpartum cows, ewes, goats and their offspring
Haugejorden, G.; Dahl, E.; Karlberg, K. et al

in Proceedings of the 15th International Congress on Animal Reproduction (2004)

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See detailAnimal performance and nitrogen surplus in suckler cows pastures fertilised with mineral nitrogen fertilizer, pig slurry or cattle compost
Dufrasne, Isabelle ULg; Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg et al

in Land use systems in grassland dominated regions, Book of abstracts of 20th General Meeting of the European Grassland Federation (2004)

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See detailThe agricultural area survey as a tool for implementing the European Nitrates Directive in the Walloon Region of Belgium.
Vandenberghe, Christophe ULg; Mohimont, A. C.; Garot, T. et al

in Hatch, D. J.; Chadwick, D. R.; Jarvis, S. C. (Eds.) et al Controlling nitrogen flows and losses. (2004)

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See detailAn unified extended thermodynamic description of diffusion, thermodiffusion, suspensions and porous media
Lebon, Georgy ULg; Desaive, Thomas ULg; Dauby, Pierre ULg

in Proceedings International Conference on thermal engineering theory and application, Beirut (Liban), 2004 (2004)

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See detailDesign and simulation of a Mechanical Amplifier for Inertial Sensing Applications
Kham, MN; Houlihan, R; Kraft, Michael ULg

in Proc. 6th Conf. on Modeling and Simulation of Microsystems (2004)

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See detailL'appropriation de l'évaluation par la formalisation des critères de jugement
Vandoorne, Chantal ULg; Grignard, Sophie ULg

in Ouvrage des résumés du Congrès des 1-2 et 3 juillet 2004 à Lyon de la Société Française de Santé Publique (2004)

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See detailMotivation in the Gym: A Qualitative Approach
Cloes, Marc ULg

in Chin, M. K.; Hensley, L. D.; Cote, P. (Eds.) et al Global Perspectives in the Integration of Physical Activity, Sports, Dance, and Exercise Science in Physical Education: From Theory to Practice (2004)

Students’ motivation is a major concern of physical education teachers as well as it interest the others educators. Understanding of that complex variable increased during the last two decades. In the ... [more ▼]

Students’ motivation is a major concern of physical education teachers as well as it interest the others educators. Understanding of that complex variable increased during the last two decades. In the physical education domain, many studies were focused on isolated variables related to motivation and on their relationship with pupils’ behaviours. More recently, qualitative researches were conducted to enter in the class specificity and to integrate the complexity and diversity of the variables that influence students’ motivations. Combining questionnaires interviews and observation, some researchers have confirmed that student’s motivation depends on a package of dispositional as well as individual and collective situational factors. They pointed out also the determining role of the teacher in the development of a motivated class climate. This paper will describe a couple of qualitative studies designed to analyse students’ motivation and will underline their contribution in the understanding of the phenomena related to the development of motivation by students. Moreover, as teachers need research directly focused to their concerns, we must now provide them more support helping them to apply research data. The action research design is proposed as an appropriate approach in that way. The description of a pilot action research focused on the improvement of the students’ motivation in a secondary school level girls class will also proposed. The main results should provide the starting point of a reflective process about the strategies that teachers could plan on the gym. As it has been underlined above, the goal of the paper was to share useful information with practitioners and researchers and to encourage them to involve themselves in personal research on students’ motivation. [less ▲]

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See detailStructural damage detection based on PCA of vibration measurements
Golinval, Jean-Claude ULg; De Boe, Pascal; Yan, A. M. et al

in 58th Meeting of the Soc. for Mach. Failure Prevention Tech, Virginia Beach, 2004 (2004)

This paper deals with the application of statistical process control techniques based on principal component analysis to vibration-based damage diagnosis of structures. Principal component analysis of the ... [more ▼]

This paper deals with the application of statistical process control techniques based on principal component analysis to vibration-based damage diagnosis of structures. Principal component analysis of the sensor time-responses allows to extract principal directions (i.e. features) which define a subspace that is representative of the dynamics of the instrumented structure. Any change in the response of a single sensor will affect the subspace spanned by the complete sensor response set. It follows that the subspace corresponding to the current state of the structure can be compared to the subspace of the initial state of the structure, assumed to be healthy, in order to diagnose possible damage. Principal component analysis may also be performed for every potential subset of damaged sensors in order to identify the involved sensor, and, therefore, the damaged substructure. In this paper, the problem of structural damage detection is addressed in the case of environmental vibration testing. A direct application is presented for a test item submitted to random vibration testing by means of an electro-dynamic shaker. [less ▲]

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See detailDoppler echocardiographic repercussions of a 12 week treadmill training period in Standardbreds
Amory, Hélène ULg; De Moffarts, Brieuc; Art, Tatiana ULg et al

in 43rd Congress of the British Equine Veterinary Association (2004)

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See detailValidation of a shell finite element for concrete and steel structures subjected to fire
Talamona, Didier; Lim, Linus; Franssen, Jean-Marc ULg

in Bradley, Derek; Drysdale, Dougal; Molkov, Vladimir (Eds.) Proceedings of the 4th International Seminar "Fire and Explosion Hazards" (2004)

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See detailStructural optimisation of steel frames for industrial applications
Mathonet, V.; Degée, Hervé ULg; Habraken, Anne ULg et al

in Proceedings of the Inverse Problems Design and Optimization Symposium (2004)

The paper reports the first results of a work carried out in close collaboration between Astron Buildings SA, a manufacturer of industrial steel buildings, and different groups of civil engineers and ... [more ▼]

The paper reports the first results of a work carried out in close collaboration between Astron Buildings SA, a manufacturer of industrial steel buildings, and different groups of civil engineers and mathematicians of the University of Liège to develop an automatic design method for structures with tapered members. This research aims at improving the current method of trialerror followed by experienced engineers to optimize the frames constrained by a chosen national construction code and the technological constraints of the producer. The main benefit of this collaboration arises through the application of a mathematical algorithm based on the sequential quadratic programming method (SQP) in order to reduce, in the first step, the weight of the building, under the great number of constraints. The second step, not yet started, will be devoted to the minimization of the real cost of the frame. This report introduces the first results of this industrial application. [less ▲]

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See detailEtude de la consolidation du béton frais sur base de la porosité à l'état durci
Willem; Darimont, Anne ULg; Degeimbre, Robert et al

in Courard, Luc (Ed.) Compte-rendu des Journées Scinetifiques du (RF)2B (2004)

La consolidation est le terme qui désigne la sédimentation des grains dans les suspensions très denses comme le béton. Le resserrement du squelette granulaire du béton frais entraîne une exsudation d’eau ... [more ▼]

La consolidation est le terme qui désigne la sédimentation des grains dans les suspensions très denses comme le béton. Le resserrement du squelette granulaire du béton frais entraîne une exsudation d’eau qui s’accumule à la surface de l’échantillon, formant la couche d’eau de ressuage. Cette migration de l’eau est à l’origine de nombreux défauts dans le béton qui mettent en péril sa durabilité. Le but de ce travail est de mettre en évidence l’existence d’une relation entre le ressuage et la porosité à l’état durci du béton. [less ▲]

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See detailAn investigation on the use of GBT for the study of profiles with branched cross section
Degée, Hervé ULg; Boissonnade, N.

in Proceedings of the Fourth International Conferences on Coupled Instabilities in Metal Structures (2004)

This paper presents a formulation allowing the application of generalised beam theory (GBT) to the analysis of thin-walled members with branched open cross section. It is then applied to a simple example ... [more ▼]

This paper presents a formulation allowing the application of generalised beam theory (GBT) to the analysis of thin-walled members with branched open cross section. It is then applied to a simple example and compared with results obtained by the use of classical FE-models (beam elements or shell elements). [less ▲]

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See detailApproche quantitative de la consommation alimentaire en Région wallonne
Duquesne, Brigitte ULg; Cordier, L.

in Rencontre Agriculture – Alimentation – Santé (2004)

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See detailCompromiso motor y participation en actividades fisicas y desportivas extraescolar: comparacion del alumnado en relacion con su habilidad
Piéron, Maurice; Cloes, Marc ULg

in Gonzalez Valeiro, M. A.; Sanchez Molina, J. A.; Gomez Varela, J. (Eds.) Preparacion professional y necesidades socials (Educacion fisica, deporte, ocio, tercera edad, salud...). Proceedings of the AIESEP International Congress La Coruña 2002 (2004)

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See detailDynamic approach of structural fire calculation with FEM software
Vassart, Olivier; Cajot, Louis-Guy; Franssen, Jean-Marc ULg et al

in Proc. 5th International Conference on Performance-Based Codes and Fire Safety Design Methods (2004)

This paper explains how the dynamic approach has been implemented in the computer software SAFIR in order to cope with temporary and local failures that occured in a step be step static analysis of ... [more ▼]

This paper explains how the dynamic approach has been implemented in the computer software SAFIR in order to cope with temporary and local failures that occured in a step be step static analysis of structures subjected to fire.By means of this recently implemented dynamic algorithm, it’s now possible to simulate the complete failure mechanism, to predict the influence of a local failure on the global behaviour of the structure and to follow eventually the progressive collapse. Therefore the resistance time is now really determined whereas in the past many numerical failure corresponding to local failure were interpreted as resistance time of the whole structure. [less ▲]

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See detailMusiques et littérature africaines-américaines
Sacré, Robert ULg

in Demeuldre, Michel (Ed.) Sentiments Doux-amers dans les Musiques du Monde . Délectations Moroses dans les blues, fado,tango, flamenco, rebetiko, p'ansori,ghazal,... (2004)

La tradition orale, la culture populaire et les musiques vocales pratiquées dans leurs communautés sont très présentes dans l'oeuvre des écrivains africains-américains en général et par exemple, dans " A ... [more ▼]

La tradition orale, la culture populaire et les musiques vocales pratiquées dans leurs communautés sont très présentes dans l'oeuvre des écrivains africains-américains en général et par exemple, dans " A Lesson before Dying" de Ernest GAINES. [less ▲]

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See detailGlobal design of hydraulic structures optimised with physically based flow solvers on multiblock structured grids
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Proceedings of the 9th International Symposium on River Sedimentation (2004)

This paper presents the numerical studies lead by the Laboratory of Applied Hydrodynamics and Hydraulic Constructions of the University of Liège (HACH) for the rehabilitation of the 21-meter high ... [more ▼]

This paper presents the numerical studies lead by the Laboratory of Applied Hydrodynamics and Hydraulic Constructions of the University of Liège (HACH) for the rehabilitation of the 21-meter high Nisramont dam in Belgium. After determination of the up-to-date 1000-year return flood using the hydrological runoff model WOLFHYDRO on the global 74,000 ha watershed real topography coupled with statistical analyzes, and after validation on the existing situation and for extreme observed events, the 2D finite volume multiblock flow solver WOLF2D has been applied to the design of the new stilling basin and to the bottom outlet rehabilitation impact study. The multiblock solver possibilities allow mesh refinement close to interesting areas, such as dam spillway and stilling pool, without leading to prohibitive CPU times, while suitable shallow water equations formulation allows the computation of the flows on the strongly vertically curved bottom of the spillway. In the described simulation, 270,000 structured finite volumes, from .25 to 1 meters long, are used to simulate as a whole the flows in the upstream reservoir, dam, spillway, stilling basin and downstream river, this on a real topography. [less ▲]

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See detailRenormalization programme for effective theories
Vereshagin, Vladimir; Semenov-Tyan-Shanskiy, Kirill ULg; Vereshagin, Alexander

in Lipatov, L.; Kim, V. (Eds.) Proceedings of First International Workshop, Hadron Structure and QCD, from low to high energies, Repino, St. Petersburg, Russia, 18-22 May 2004 (2004)

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See detailLearner Support in the Formasup degree: variety as a key feature and close coaching to drive innovation
Poumay, Marianne ULg

in Supporting the Learner in Distance Education and E-Learning (2004)

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See detailLa Femme et le cloître à l’époque moderne. Bilan historiographique et perspectives de recherches
Henneau, Marie-Elisabeth ULg

in Leduc, Guyonne (Ed.) Nouvelles sources et nouvelles méthodologies de recherche dans les études sur les femmes (2004)

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See detailDetection of moulds growing on building materials by gas sensor arrays and pattern recognition
Kuske, Martyna; Padilla, M.; Romain, Anne-Claude ULg et al

in Technical digest of eurosensors : proceedings (2004)

This work explores the detection of moulds growing in different building materials by using a metal oxide sensor array Four mould species have been considered. Pattern Classification provides ... [more ▼]

This work explores the detection of moulds growing in different building materials by using a metal oxide sensor array Four mould species have been considered. Pattern Classification provides classification rates on the order of 80-90% for different species. Drift degrades slightyl these values subsequent test four months later. [less ▲]

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See detailExperimental characterization of hafting traces and their recognition in archaeological assemblages
Rots, Veerle ULg; Vermeersch, Pierre M.

in Walker, E. A.; Wenban-Smith, F.; Healy, F. (Eds.) Lithics in Action. Papers from the Conference Lithic Studies in the Year 2000 (2004)

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See detailApproche unifiée des interactions entre l'hydrodynamique et le milieu naturel ou construit: exemples d'applications expérimentales et numériques
Pirotton, Michel ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Actes des 5èmes journées scientifiques et techniques du CETMEF (2004)

Même si le contexte contemporain fait évoluer les problèmes qui y sont liés, force est de constater que les défis majeurs attachés à l’eau subsistent ou se radicalisent. De l'écrêtement des crues au ... [more ▼]

Même si le contexte contemporain fait évoluer les problèmes qui y sont liés, force est de constater que les défis majeurs attachés à l’eau subsistent ou se radicalisent. De l'écrêtement des crues au soutien d'étiage, du recours toujours croissant à l'eau pour l’activité industrielle au sens large au maintien de ses propriétés écologiques pour la consommation, tout concourt à faire du problème de l’eau un défi du 21e siècle, bien rare à épargner et à gérer plus efficacement. Qu'elle s'intéresse à l’origine, à la consommation ou à l’utilisation de l’eau ou encore qu'elle se tourne vers les conséquences possibles des infléchissements que l'homme peut provoquer sur le cycle de l’eau, la gestion actuelle des ressources hydrauliques ne peut plus ignorer les nouvelles potentialités nées de l'accroissement rapide des possibilités numériques qui permettent, avec les acquis théoriques en mécanique des fluides, de développer des outils d'aide à la décision applicables à des situations grandeur nature. Parmi tous les domaines de l’hydraulique touchés par le numérique, l'intérêt du HACH à modéliser l’ensemble des écoulements à surface libre résulte simplement de leur prépondérance dans les phénomènes hydrodynamiques influents sur lesquels on s'efforce d'agir. A l'échelle du système hydrologique global, le souci de gérer, donc d’anticiper les phénomènes naturels et accidentels, conduit ainsi à couvrir avec des approches physiquement basées les différentes étapes que connaît la goutte d’eau lorsqu’elle frappe la surface terrestre, du ruissellement au gonflement des rus, rivières et zones de stockage, jusqu’aux grands fleuves et voies intérieures de navigation. Délaissant volontairement le formalisme des équations utilisées et des méthodes numériques de résolution, cet article s’attache à prouver la pertinence du recours au numérique par une illustration chronologique (au fil de l’eau) de quelques situations réelles gérées par la suite des programmes WOLF, complètement écrits au sein du HACH. [less ▲]

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See detailEffects of atmospheric turbulence on the GENIE nulling interferometer
Absil, Olivier ULg

in Aime, Claude; Soummer, Rémi (Eds.) Astronomy with High Contrast Imaging II (2004)

Two competitive design studies for the Ground-based European Nulling Interferometer Experiment (GENIE) have recently been initiated by the European Space Agency and the European Southern Observatory. A ... [more ▼]

Two competitive design studies for the Ground-based European Nulling Interferometer Experiment (GENIE) have recently been initiated by the European Space Agency and the European Southern Observatory. A major issue in these studies is the influence of atmospheric turbulence on the performance of the instrument, and how atmospheric effects can be compensated in order to reach the goal performance (detection of faint exozodiacal clouds). In this paper, we review the main atmospheric processes affecting a nulling interferometer and discuss possible ways to reduce them by means of real-time control systems. Preliminary performance estimates of GENIE are then presented. The effects of the thermal background and its fluctuations (Absil & Bakker 2004) are not considered here. [less ▲]

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See detailEffects of a micro hydroelectric power plant upon population abundance, mobility and reproduction behaviour of European grayling T. thymallus and brown trout S. trutta in a salmonid river
Ovidio, Michaël ULg; Paquer, Frédéric ULg; Capra, Hervé et al

in Garcia de Jalon, Diego; Vizcaino Martinez, Pilar (Eds.) International Symposium on Ecohydraulics. Aquatic habitat: Analysis & Restoration (2004)

This study examines the potential effects of a new micro hydroelectric power plant (MHPP) on the behaviour (habitat use, movements) and population abundance of European grayling (T. thymallus) and brown ... [more ▼]

This study examines the potential effects of a new micro hydroelectric power plant (MHPP) on the behaviour (habitat use, movements) and population abundance of European grayling (T. thymallus) and brown trout (S. trutta) in the Lhomme (Belgian Ardennes). Thirteen grayling and five brown trout were captured before their spawning period and were manually radio-tracked up to 6 times a week. Population density and biomass were estimated into two different sampling sectors with electric fishing, before and after the MHPP started up. The mobility patterns of grayling and trout in the reach of the river Lhomme influenced by the MHPP strongly contrasted with results obtained in an undisturbed river of the same type in the Belgian Ardennes. Movements were mostly restricted and rarely increased during the spawning period. Spawning took place, but was disturbed by hydropeakings. The population biomass of grayling and trout decreased by 61 % and 23 % respectively, five months after the start-up of the MHPP exploitation. [less ▲]

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See detailIntraplate deformations measured using an absolute gravimeter across the Ardenne and the Roer Graben (North-Western Europe)
Van Camp, Michel; Camelbeek, Thierry; Warnant, René ULg

in Meurers, B.; Pail, R. (Eds.) Proceedings of the 1st Workshop on International Gravity Field Research (2004)

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See detailProper Orthogonal modes for the characterisation of nonlinear dynamic systems
Kerschen, Gaëtan ULg; Lenaerts, Vincent; Golinval, Jean-Claude ULg et al

in Euromech Colloquim on Nonlinear Modes of Vibrating Systems, Frejus, 2004 (2004)

Modal analysis is extensively used for the analysis and design of structures. However, a major concern for structural dynamicists is that its validity is limited to systems showing a linear behaviour. New ... [more ▼]

Modal analysis is extensively used for the analysis and design of structures. However, a major concern for structural dynamicists is that its validity is limited to systems showing a linear behaviour. New developments have thus been proposed in order to tackle nonlinear systems among which the theory based on the nonlinear normal modes is indubitably the most appealing. In this study, a different approach is adopted and the modes extracted from the proper orthogonal decomposition are considered for the characterization of nonlinear systems. [less ▲]

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See detailNivelles et Namur : deux maisons francophones d’Annonciades aux Pays-Bas méridionaux (17e-18e s.)
Henneau, Marie-Elisabeth ULg

in Dinet, Dominique; Moracchini, Pierre; Portebos, Marie-Emmanuel (Eds.) Jeanne de France et l'Annonciade (2004)

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See detailSensor Validation for On-line Vibration Monitoring
Kerschen, Gaëtan ULg; De Boe, Pascal; Golinval, Jean-Claude ULg et al

in 2nd European Workshop on Structural Health Monitoring, Munich, 2004 (2004)

For a reliable on-line vibration monitoring of structures, it is necessary to have accurate sensor information. However, sensors may sometimes be faulty or may even become unavailable due to failure or ... [more ▼]

For a reliable on-line vibration monitoring of structures, it is necessary to have accurate sensor information. However, sensors may sometimes be faulty or may even become unavailable due to failure or maintenance activities. The problem of sensor validation is therefore a critical part or structural identification. The objective of the present study is to present a procedure based on principal component analysis, which is able to perform detection, isolation and reconstruction of a faulty sensor. Its e ciency is assessed using an experimental application. [less ▲]

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See detailDerivation of the rotational frequency of massive stars from seismic studies
Aerts, C.; Scuflaire, Richard ULg; Thoul, Anne ULg

in Stellar Rotation. 215 (2004)

In this contribution we review the current status of the determination of the rotational frequency in non-radially pulsating B stars, i.e. beta Cep stars and slowly pulsating B stars. Considerable ... [more ▼]

In this contribution we review the current status of the determination of the rotational frequency in non-radially pulsating B stars, i.e. beta Cep stars and slowly pulsating B stars. Considerable progress is currently being made in the understanding of the non-radial oscillations of main-sequence B Stars by means of high-temporal, high-spatial resolution spectroscopic time series. This has led to the detection of frequency multiplets, which are interpreted as rotationally splitted non-radial modes and which allow an accurate determination of the surface rotational frequency in some stars. We outline how our future goal, i.e. the derivation of the internal rotation frequency, can be achieved. [less ▲]

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See detailEUREF Related Activities in Belgium
Bruyninx, Carine; Carpentier, Georges; Lejeune, Sandrine et al

in Torres, J.; Hornik, H. (Eds.) EUREF Publication No. 13 (2004)

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See detailPassive energy transfer and dissipation for isolation from transcient broadband disturbances
Kerschen, Gaëtan ULg; McFarland, D. Michael; Kowtko, J. et al

in US-Korea Joint Seminar/Workshop on Smart Structures Technologies, Seoul, 2004 (2004)

We discuss passive nonlinear energy pumping from a linear (main) mechanical structure to a weakly coupled, local, passive nonlinear energy sink (NES). We show that the NES can be designed to effectively ... [more ▼]

We discuss passive nonlinear energy pumping from a linear (main) mechanical structure to a weakly coupled, local, passive nonlinear energy sink (NES). We show that the NES can be designed to effectively absorb vibrational energy from the main structure in a one-way, irreversible fashion. We demonstrate the occurrence of pumping cascades, where an appropriately designed NES passively extracts energy sequentially from a number of modes of the main (linear) structure, interacting individually with each mode before moving to the next. Experimental results confirm our theoretical findings. The applications of the nonlinear energy pumping phenomenon to the problem of vibration and shock isolation will be discussed [less ▲]

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See detailSpatial pattern change in plant communities following extreme events: consequences for re-colonisation and alien plant invasion. Verhandlungen der Gesellschaft für Ökologie, Band 34, Eco-complexity and dynamics of the cultural landscape,
Nijs, I; Li, Z Q; Bogaert, Jan ULg

in Otte, A; Simmering, D; Eckstein, L (Eds.) et al Eco-complexity and dynamics of the cultural landscape, (2004)

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See detailA set of efficient numerical tools for floodplain modelling
Archambeau, Pierre ULg; Dewals, Benjamin ULg; Detrembleur, Sylvain ULg et al

in Jirka, G. H.; Uijttewaal, W. S. J. (Eds.) Shallow flows (2004)

In the last years, Europe was subject to catastrophic inundations. At the same time, computer's capacity are increasing such as bidimensional simulations can be applied to real cases. Two compementary ... [more ▼]

In the last years, Europe was subject to catastrophic inundations. At the same time, computer's capacity are increasing such as bidimensional simulations can be applied to real cases. Two compementary theoretical and numerical models are presented and discussed in the present paper: the diffusive approximation and the complete shallow-water approach. An original refinement of meshes is also presented to increase the convergence speed to a steady solution. Numerous comparisons between models and methods of resolution are described. Finally, an example of determination of the flood extension on a natural river is illustrated. [less ▲]

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See detailQTL analysis of the expression of the low-gossypol seed and high gossypol plant trait in the progeny of the Gossypium hirsutum x G. raimondii x G. sturtanium trispecific hybrid
Benbouza, H.; Lacape, M.; Courtois, B. et al

in Proceedings of the Beltwide cotton improvement conference (2004)

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See detailEffet de la fertilisation avec des engrais contenant du sélénium sur le statut sélénique de bovins Blanc-Bleu Belge : résultats préliminaires
Dufrasne, Isabelle ULg; Cabaraux, Jean-François ULg; Coenen, M. et al

in 11èmes Rencontres autour des Recherches sur les Ruminants (2004)

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See detailMolecular monitoring of the introgression in Gossypium hirsutum L. of G. sturtanium Willis genes controlling the "glanded-plant and glandless-seed" trait
Benbouza, H.; Lacape, M.; Jacquemin, J. M. et al

in World Cotton Research Conference - 3. Cotton production for the new Millenium (2004)

One hundred mapped micro-satellites markers located on the chromosomes of subgenome Ah were used to monitor the introgression of DNA fragments coming from the Australian species G. sturtianum Willis in ... [more ▼]

One hundred mapped micro-satellites markers located on the chromosomes of subgenome Ah were used to monitor the introgression of DNA fragments coming from the Australian species G. sturtianum Willis in BC1, BC2, BC2S1, BC2S2, BC2S3, BC3, BC3S1 and BC3S2 obtained from the G. hirsutum L. x G. raimondii Ulb. x G. sturtianum (HRS) trispecific hybrid. In these plants, the inhibition of the gossypol synthesis only in the seed seems to be linked to the substitution of fragments of linkage groups C2, C3, C4, C5, C6, C7 and C9 of G. hirsutum by homeologous segments of G. sturtianum chromosomes. The prospect to use these genetic stocks to develop commercial varieties is discussed according to the putative genetic determinism of the “low-gossypol seed and high-gossypol plant”-trait. [less ▲]

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See detailLarge scale 2D numerical modelling of reservoirs sedimentation and flushing operations
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proceedings of the 9th International Symposium on River Sedimentation (2004)

The quasi-3D flow solver WOLF has been developed at the University of Liege for almost a decade. It has been used to carry out the simulation of silting processes in large reservoirs and to predict the ... [more ▼]

The quasi-3D flow solver WOLF has been developed at the University of Liege for almost a decade. It has been used to carry out the simulation of silting processes in large reservoirs and to predict the efficiency of flushing operations. Besides briefly depicting the mathematical and numerical model, the present paper demonstrates its applicability on the case of a large hydropower project in India. The silting process of the reservoir has been simulated by means of the quasi-3D flow model with a quasi-steady approach. For simulating flushing events, both the topography changes and their interactions with the flow have been carefully handled in a strongly coupled approach. This narrow coupling has required the development of a suitable upwind numerical scheme. Results are presented with 2D- and 3D-views, completed by cross-sections and curves of the variation of key variables. The numerous observations based on those results lead to a global assessment of the silting mechanism and of the flushing efficiency. [less ▲]

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See detailValidation of a quasi-2D model for aerated flows over stepped spillways for mild and steep slopes
Dewals, Benjamin ULg; André, Stéphanie; Schleiss, Anton et al

in Proceedings of the 6th International Conference of Hydroinformatics (2004)

A quasi-2D model of aerated flow over stepped slopes has been developed, taking into account the non-uniform velocity profile and the air transport processes. The paper presents the mathematical approach ... [more ▼]

A quasi-2D model of aerated flow over stepped slopes has been developed, taking into account the non-uniform velocity profile and the air transport processes. The paper presents the mathematical approach, the numerical model and its validation. [less ▲]

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See detailL’architecture comme représentation de la justice pénale
Tieleman, David ULg

in GAMBARDELLA, Carmine; MARTUSCIELLO, Sabina (Eds.) Le Vie deai Mercanti : rappresentazione come governo della modificazione (2004)

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See detailScale modelling and similarity laws for the study of an under pressure settling structure
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Proceedings of the 9th International Symposium on River Sedimentation (2004)

This paper presents the scale model studies of a complex under pressure settling structure, carried out at the Laboratory of Hydraulic Constructions of the University of Liège. Made up of fourteen ... [more ▼]

This paper presents the scale model studies of a complex under pressure settling structure, carried out at the Laboratory of Hydraulic Constructions of the University of Liège. Made up of fourteen identical settling chambers placed side by side and the bottom of which is divided into pyramidal hoppers, the structure, totally under pressure, is fed by a vertical shaft. Downstream, the settling chambers discharge into a collector, which ensures the clean water feeding of four penstocks through a free surface basin. Finally, a pipes network, under the chambers, ensures the downstream evacuation of the sand trapped in the hoppers. Using adapted and theoretically justified similarity laws coupled with realistic scales for the models, the hydrodynamic behavior and solid transport phenomena in this complex system have been studied. Special care has been taken to evaluate the trap efficiency, the evacuation system working and the global discharge repartition between the fourteen chambers. Sawdust, plastic balls or very small sand particles have been used to model real sediments. A total of three models, from only one hopper to the full settling structure, have been built, with scales from 1/18.5 to 1/100. According to the results of the studies, the length of the settling chambers has been shortened of up to 38 meters, i.e. 2 hoppers, and best use instructions have been suggested for the sediment evacuation system. [less ▲]

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See detailGrass disease et Equine motor neurone disease
Amory, Hélène ULg

in Proceedings of 2ème Journée Toulousaine de Médecine Equine (2004)

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See detailEffet de l’entraînement et de l’intensité de l’exercice sur les marqueurs sanguins du stress oxydant chez le trotteur
De Moffarts, Brieuc; Kirschvink, Nathalie; Art, Tatiana ULg et al

in Proceedings: Congrès de l'Association Vétérinaire Equine Française (AVEF) (2004)

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See detailLes productions animales dans les pays candidats
Burny, Philippe ULg

in CRA (Ed.) Neuvième Carrefour des Productions Animales "L'impact de l'ouverture à l'Est sur les productions animales des pays de l'Ouest de l'Europe", Gembloux, 21-01-2004 (2004)

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See detailComparative analysis of the predictive capacity of breaching models for an overtopped rockfill dam
Dewals, Benjamin ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Proceedings of the International Workshop "Stability and Breaching of Embankment Dams" (2004)

The paper covers a brief description and a comprehensive comparative analysis of several state-of-the-art dam breaching models. The study is specifically focused on the applicability and on the predictive ... [more ▼]

The paper covers a brief description and a comprehensive comparative analysis of several state-of-the-art dam breaching models. The study is specifically focused on the applicability and on the predictive capacity of the models for the gradual breaching of an overtopped rockfill dam. A wide range of modelling techniques is reviewed, from process-oriented numerical simulations to empirical models. Comparisons are performed regarding various aspects, such as the applicability of the model without prior calibration or the possibility of coupling the breaching model with a quasi-3D flow solver such as WOLF. Finally, a sensitivity analysis of the downstream hydrograph to various parameters is conducted and the conclusions drawn are illustrated in the case of a large-scale real application in Belgium. [less ▲]

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See detailDeep drawing simulations with different polycrystalline models
Duchene, Laurent ULg; de Montleau, P.; Bouvier, S. et al

in Gosh, Somnath; Castro, Jose M.; Lee, June K. (Eds.) Materials Processing and Design: Modeling, Simulation and Applications (NUMIFORM 2004) (2004)

The goal of this research is to study the anisotropic material behavior during forming processes, represented by both complex yield loci and kinematic-isotropic hardening models. A first part of this ... [more ▼]

The goal of this research is to study the anisotropic material behavior during forming processes, represented by both complex yield loci and kinematic-isotropic hardening models. A first part of this paper describes the main concepts of the ‘Stress-strain interpolation’ model that has been implemented in the non-linear finite element code Lagamine. This model consists of a local description of the yield locus based on the texture of the material through the full constraints Taylor’s model. The texture evolution due to plastic deformations is computed throughout the FEM simulations. This ‘local yield locus’ approach was initially linked to the classical isotropic Swift hardening law. Recently, a more complex hardening model was implemented: the physically-based microstructural model of Teodosiu. It takes into account intergranular heterogeneity due to the evolution of dislocation structures, that affects isotropic and kinematic hardening. The influence of the hardening model is compared to the influence of the texture evolution thanks to deep drawing simulations. [less ▲]

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See detailAffections respiratoires bovines : évolution des lésions pulmonaires et rapidité d’intervention
Lekeux, Pierre ULg; Coghe, J.

in Proceedings: Congrès de la Société Française de Buiatrie (2004)

Respiratory disease is the principal cause of loss of young cattle worldwide. The syndrome arises from a number of factors, including those involving the animal, e.g., age, general condition and immune ... [more ▼]

Respiratory disease is the principal cause of loss of young cattle worldwide. The syndrome arises from a number of factors, including those involving the animal, e.g., age, general condition and immune status; its environment, e.g., changes in food, temperature and humidity that lead to stress; and the presence of infectious agents, e.g., bacteria, viruses and mycoplasmas. The syndrome, in a method proposed by the author, can be classified into four grades: Grade 1, subclinical disease; Grade 2, compensated clinical disease; Grade 3, noncompensated clinical disease; and Grade 4, irreversible clinical disease. The increase in frequency and economic impact of bovine respiratory disease complex can be correlated with the escalating industrialisation of cattle production. In intensive operations, commingling of animals from multiple sources, exposure to many organisms, stress and management practices are all factors that can lead to disease. The predisposition of cattle, especially beef calves, to respiratory problems is related to their lack of functional pulmonary hardiness. Selection of breeds that demonstrate adequate pulmonary function and sufficient ventilatory reserve may help in the control of the bovine respiratory disease complex, but this approach is difficult to implement and slow to produce results. Prophylactic measures, including vaccination programmes and modifying management practices to reduce stress, also have a place in preventing the bovine respiratory disease complex. Unfortunately, these measures are not always easy to put into operation and cannot completely eradicate the problem. Therapeutic strategies to minimise the economic impact of the syndrome include use of early antibacterial therapy, modulation of the pulmonary inflammatory reaction and correction of mechanical disorders [less ▲]

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See detailSoil variability measured by a soil strenght sensor: within-field variability and similarity between fields
Hanquet, Bernard; Ndao, Tanor; Verbrugge, Jean-Claude et al

in Book of Abstracts (2004)

Many sensing methods for soil physical properties determination are developed to replace time-consuming and expensive soil sampling and analysis. Within this scope, sensors to measure soil strength are ... [more ▼]

Many sensing methods for soil physical properties determination are developed to replace time-consuming and expensive soil sampling and analysis. Within this scope, sensors to measure soil strength are developed in several laboratories. They are generally coupled to DGPS positioning systems to produce maps, showing within-field soil variability. In this study, besides the within-field variability, the sensor was used with another objective: the aim was to appraise the similarity of soil strength between different fields located in silty areas, in Belgium. [less ▲]

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See detailAnalyse d'un dispositif innovant d'ingénierie docimologique permettant aux étudiants d'obtenir des feedbacks individualisés et diagnostiques via le web après une épreuve standardisée en amphithéâtre
Gilles, Jean-Luc ULg

in Arzola Medina, Sergio (Ed.) XIV congreso mundial de ciencias de la educacion : educatores para una nueva cultura (2004)

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See detailLe paysage invisible.
Schmitz, Serge ULg

in Puech, Daniel; Rivière-Honegger, Anne (Eds.) L'évaluation du paysage : une utopie nécessaire ? (2004)

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See detailEffet de prétraitements agoniste et antagoniste de GnRH sur la production d’embryons chez la brebis et la chèvre
Baril, G.; Cognié, Y.; Belloc, J. P. et al

in Proceedings: 11e Rencontres autour des Recherches sur les Ruminants (3R) (2004)

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See detailOn the determination of local buckling modes for the design of thin walled members
Rossi, Barbara ULg; Rondal, Jacques ULg

in International Conference on Coupled instabilities in metal structures: CIMS2004, Rome 27-29 September 2004 (2004)

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See detailInvestigations on PrP and PrPres in porcine brain and in stimufol preparations
Degand, Guy ULg; Remy, Benoit; Fotsing, Lucas ULg et al

in Proceedings: 20th Annual Meeting A.E.T.E (2004)

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See detailNumerical simulation of tissue differentiation around loaded implants in a bone chamber
Geris, Liesbet ULg; Vander Sloten, Jos

in In Proceedings of the Mini-Symposium Biomécanique de l'appareil locomoteur (2004)

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See detailEntrée dans la vie adulte et processus d'affiliation identitaire
Guillaume, Jean-François ULg

in Istace, Evelyne; Laffut, Michel; Plasman, Robert (Eds.) et al Sphères privée et professionnelle : vers une recomposition des rôles et des actions (2004)

Dans quelle mesure jeunes hommes et jeunes femmes intègrent-ils les injonctions sociales poussant à la réussite, à l'autonomie, à l'épanouissement personnel,... au moment de poser des choix familiaux et ... [more ▼]

Dans quelle mesure jeunes hommes et jeunes femmes intègrent-ils les injonctions sociales poussant à la réussite, à l'autonomie, à l'épanouissement personnel,... au moment de poser des choix familiaux et professionnels ? Dans quelle mesure le groupe des pairs offre-t-il des repères pour les identités en construction ? [less ▲]

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See detailFinite element prediction of the swift effect based on Taylor-type polycrystal plasticity models
Duchene, Laurent ULg; Delannay, L.; Habraken, Anne ULg

in Stören, Sigurd (Ed.) Proceedings of the 7th ESAFORM conference on Materials Forming (2004)

This paper describes the main concepts of the stress-strain interpolation model that has been implemented in the non-linear finite element code Lagamine. This model consists in a local description of the ... [more ▼]

This paper describes the main concepts of the stress-strain interpolation model that has been implemented in the non-linear finite element code Lagamine. This model consists in a local description of the yield locus based on the texture of the material through the full constraints Taylor’s model. The prediction of the Swift effect is investigated: the influence of the texture evolution is shown up. The LAMEL model is also investigated for the Swift effect prediction. [less ▲]

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See detailNuclear factor kappaB inhibition in bovine mammary epithelial cells reduces intracellular infection by Staphylococcus aureus.
Boulanger, D.; Bureau, Fabrice ULg; Lekeux, Pierre ULg

in Proceedings : 23rd World Buiatrics Congress (2004)

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See detailMaintien et stratégies de renforcement de la motivation des étudiants dans l'enseignement à distance
Mignon, Jacques ULg; Closset, Jean-Louis ULg

in Actes du 21e congrès de l’Association internationale de pédagogie universitaire (AIPU) (2004)

L'exploitation des nouvelles technologies dans la mise sur pied d'un enseignement à distance s'accompagne nécessairement d'une réflexion pédagogique structurée. Cette réflexion fait souvent fi de la mise ... [more ▼]

L'exploitation des nouvelles technologies dans la mise sur pied d'un enseignement à distance s'accompagne nécessairement d'une réflexion pédagogique structurée. Cette réflexion fait souvent fi de la mise en oeuvre de véritables stratégies motivationnelles. Pourtant, lorsqu'on demande à un enseignant pourquoi il souhaite mettre un cours en ligne, il invoque souvent le fait de chercher à motiver ses étudiants. Nous distinguerons ici le maintien de la motivation, du renforcement de la motivation des étudiants. Les risques de démotivation et d'abandon sont très nombreux dans l'enseignement à distance, même avec le soutien des nouvelles technologies. Il est donc essentiel de veiller à maintenir constamment la motivation initiale de l'apprenant. Si le maintien de cette motivation fait appel à des moyens, des trucs, des recettes de tutorat, il n'en va pas de même du renforcement de la motivation. En effet, il s'agit ici de mettre au point, dès la phase de conception du cours, de véritables stratégies motivationnelles. Quels sont les risques de démotivation des étudiants ? Comment les éviter ? Quelles bases théoriques peuvent nous guider dans notre mise au point des stratégies motivationnelles ? Quelles pistes motivationnelles le concepteur peut-il emprunter, et dans quelles perspectives ? Sur base des théories de la motivation, notre recension des données bibliographiques vise à préciser les questions que doivent se poser les concepteurs de cours à distance. De même, elle débouche, pour chaque question, sur des pistes concrètes à explorer. [less ▲]

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See detailEnseigner les langues dans le fondamental : un métier difficile, mais plutôt apprécié
Straeten, M.; Blondin, Christiane ULg

in (Re)trouver le plaisir d'enseigner et d'apprendre : construire savoirs et compétences : actes du 3e congrès des chercheurs en éducation (2004)

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See detailA hydrographic and biochemical climatology of the Mediterranean and the Black Sea: some statistical pitfalls
Rixen, Michel; Beckers, Jean-Marie ULg; Maillard, Catherine

in Vandenberghe, E.; Brown, M.; Costello, M.J (Eds.) et al IOC Workshop Report 188 (2004)

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See detailEglises liégeoises en chantier au XIIIe et au XIVe siècle
Hoffsummer, Patrick ULg; Tourneur, Francis; Eeckhout, Jérôme ULg et al

in Van den Bossche, Benoît (Ed.) La cathédrale gothique Saint-Lambert à Liège, une église et son contexte (2004)

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See detailMetodologia documentaria e insegnamento a distanza (traduit du français par Massimo Borghese)
Pochet, Bernard ULg

in Lombello Soffiato, Donatella; Lo Brano, Ademario (Eds.) Inciampare nel problema. Il Processo di ricerca dell'informazione nella biblioteca scolastica multimediale (2004)

During this presentation, we will mainly describe the information literacy courses at the University of Gembloux in Belgium (FUSAGx) and its gradual transformation of from presential education to distance ... [more ▼]

During this presentation, we will mainly describe the information literacy courses at the University of Gembloux in Belgium (FUSAGx) and its gradual transformation of from presential education to distance learning. The process is far from over, but some lessons can already be drawn from this 3 years experience's. [less ▲]

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See detailL’intégration architecturale et urbaine des vestiges archéologiques
Teller, Jacques ULg; Lefert, S.

in Actes du Colloque International APPEAR (2004)

Detailed reference viewed: 47 (6 ULg)
See detailLandscape pattern analysis using independent pattern components and landscape transformation processes.
Bogaert, Jan ULg

in The 19th Annual Symposium of the IALE US regional association. (2004)

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See detailCartography and Land Use change of world heritage areas and the benefits of remote sensing and GIS for conservation and monitoring world heritage sites
De Maeyer, Philippe; Bogaert, Peter; De Man, Joris et al

in Goossens, Rudi (Ed.) Remote Sensing in Transition (2004)

Remote sensing has been widely used within various fields, with environmental applications being the most widespread. Through the joint effort of UNESCO, OSTC Belgium, Geography Dept, Ghent University and ... [more ▼]

Remote sensing has been widely used within various fields, with environmental applications being the most widespread. Through the joint effort of UNESCO, OSTC Belgium, Geography Dept, Ghent University and Labo SURFACES of Geomatic Dept, Liege University, a demo project to conserve five world Heritage sites was launched. The remote sensing and Geographic Information Systems (GIS) project attempted to provide basic cartography of the world heritage sites and also detect land use changes in and around the sites in the past ten years. A final contribution towards the conservation and monitoring of the world Heritage sites was made through this project. To fulfil the objectives of this project an internet site was created to provide information to a wider public audience. This raises awareness of not only the location and status of the selected Heritage sites, but also contributes to an improved information base leading to the sustainable management of these sites. [less ▲]

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See detailApplication of different mathematical models for the prediction of bone regeneration in an in vivo bone chamber
Van Oosterwyck, Hans; Geris, Liesbet ULg; Gerisch, A. et al

in Lecture notes of workshop Numerical models of bone adaptation and repair (2004)

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See detailAggregated indicators from an optimized groundwater monitoring network: example in Walloon region of Belgium for implementation of the European Water Directive
Rentier, Céline; Delloye, Francis; Brouyère, Serge ULg et al

in Proc. of Integrated methods for assessing water quality, COST629 Workshop (2004)

Following prescriptions of the recent European Water Framework Directive, a groundwater quality evaluation system must be adopted for checking the groundwater status with respect to different contaminants ... [more ▼]

Following prescriptions of the recent European Water Framework Directive, a groundwater quality evaluation system must be adopted for checking the groundwater status with respect to different contaminants. A screening evaluation system (based on a system developed by the French Water Agencies) has been adapted to the specific conditions in the Walloon Region of Belgium. Groundwater quality data are aggregated into indicators with respect to different water uses such as drinking water standards, thresholds values for preserving dependent surface ecosystems, or the groundwater ‘natural or patrimonial state’. A global groundwater quality indicator can also be calculated. Different aggregation techniques are discussed with their respective influence on the final indicator. In relation to this evaluation, the monitoring network must be adapted for being (as far as possible) representative of the global quality of water in each groundwater body. Existing knowledge and understanding of the actual hydrogeological conditions were used in priority for choosing an adequate network of monitoring points. At the same time, the spatial density of points was checked in order to obtain a statistically representative network. Applications were performed in five different GWBodies belonging to the hydrographic district of the Meuse River in the Walloon Region and with different contrasted geological conditions: Cretaceous chalks, Carboniferous limestones and Pleistocene gravels of the alluvial plain of the River Meuse. These examples provide a good opportunity for further discussion and work about the main related issues: optimzation procedures, aggregation methods and estimation of the reliability of indicators. [less ▲]

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See detailLandscape metrics for the evaluation of trend reliability in remote sensing imagery.
Bogaert, Jan ULg

in Abstracts of the Second International SPOT/VEGETATION Users Conference (2004)

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See detailDetermination of pregnancy-associated glycoprotein, P4, E1S and PgFM concentrations in the sheep during pregnancy
Gajewski, Z.; Beckers, Jean-François ULg; Thun, R.

in Proceedings: 23rd World Buiatrics Congress, Québec, Canada (2004)

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See detailFinite-element simulations of cup drawing using the taylor and the lamel model
Van Bael, A.; He, S.; Van Houtte, P. et al

in Stören, Sigurd (Ed.) Proceedings of the 7th ESAFORM conference on Materials Forming (2004)

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See detailSpatially distributed , physically-based modelling for simulating the impact of climate change on groundwater reserves
Brouyère, Serge ULg; Dassargues, Alain ULg

in Webb, B.; Arnell, N.; Onof, Ch (Eds.) et al Hydrology: science and practice for the 21st century (2004)

If an increase in winter rainfall is foreseen in temperate areas like in Belgium, a shorter recharge season is also expected leading possibly in an uncertain trend for the total recharge of the aquifers ... [more ▼]

If an increase in winter rainfall is foreseen in temperate areas like in Belgium, a shorter recharge season is also expected leading possibly in an uncertain trend for the total recharge of the aquifers. An integrated hydrological model (MOHISE) was developed in order to study the impact of climate change on the hydrological cycle in representative water basins in Belgium. This model considers all hydrological processes in a physically consistent way, more particularly groundwater flows that are modelled using a spatially distributed finite element approach. After detailed calibration and validation, quantitative interpretations can be drawn from the groundwater model results for different IPCC climate change scenarios. This integrated approach was applied to evaluate the impact of climate change on the water cycle in the Geer basin in Belgium. The river-aquifer interactions are explicitly taken into account in the model, as well as the spatial heterogeneity of the chalk geology characteristics. The groundwater model is described in detail. Modelling results are discussed in terms of climate change impact on the evolution of groundwater reserves. First results indicate that groundwater deficits may be expected in the future in Belgium. For this aquifer, the tested scenarios show no enhancement of the seasonal changes in groundwater levels. Moreover, this trend is computed, at this stage of the study, without taking into account aggravating factors like possible changes in land use and pumping conditions. [less ▲]

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See detailApproche clinique de l’anémie
Amory, Hélène ULg; Gabriel, B

in Proceedings of the Annual meeting of the French Equine Veterinary Association (AVEF) (2004)

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See detailLe texte dans tous ses états. Philosophie d’encodage du projet Khartês
Mazziotta, Nicolas ULg

in Dister, Anne; Purnelle, Gérald; Fairon, Cédrick (Eds.) Le poids des mots. Actes des 7es Journées internationales d’Analyse statistique des Données Textuelles (2004)

When editing Medieval sources, one always encounters the same dilemma : how to make the text readable nowadays without spoiling its testimony ? « Cleaning » the text from all that makes it difficult to ... [more ▼]

When editing Medieval sources, one always encounters the same dilemma : how to make the text readable nowadays without spoiling its testimony ? « Cleaning » the text from all that makes it difficult to read for someone erases marks that would look valuable from another point of view. Hence, there is an unavoidable gap between the source and the edition. The Khartês project (which intends to edit and study original Old French charters written in Liège before 1300) has encountered this problem. Traditional « solutions » were inadequate and computers opened an interresting path. However, Khartês had to think about creating an encoding scheme that would suit its aim and remain easy to use. This is the way KML (the Khartês Markup Language, an XML-conformant language) was born, together with a small set of handy encoding rules. A wide range of applications are made possible. For instance, thanks to the way the corpus has been created, it has been possible to search a particular document for marked letters (which look like our uppercase letters) and to study them. [less ▲]

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See detailCorrespondences between the conception principles of sustainable public spaces and the criteria of outdoor comfort
Reiter, Sigrid ULg

in de Wit, M. H. (Ed.) Plea 2004 - Proceedings of the 21th International Conference on Passive and Low Energy Architecture (2004)

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See detailA juhok korai vemhességének megállapítása
Karen, A.; Beckers, Jean-François ULg; Sulon, J. et al

in Proceedings: The 5th Middle-European Buiatrics Congress (2004)

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See detailMinimising perceived latency in audio-conferencing systems over application-level multicast
Blundell, N.; Mathy, Laurent ULg

in Proceedings of MIPS Workshop (2004)

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See detailQuels risques spécifiques en matière de sécurité et de droit du travail?
Kefer, Fabienne ULg

in Responsabilité des dirigeants (2004)

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See detailDe zinsaccentuering in het Nederlands: een verkenning over de grenzen tussen (toegepaste) taalkunde en didactiek heen
Rasier, Laurent ULg

in Gelderblom, A. (Ed.) Neerlandistiek de grenzen voorbij. Handelingen van het Vijftiende Colloquium Neerlandicum (2004)

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See detailEvolution des programmes d'amélioration génétique de production laitière bovine au Burkina Faso
Boly, H.; Boundaogo, M.; Sanogo, W. et al

(2004)

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See detailA Set of Equity Indicators of the European Education Systems A synthesis
Demeuse, Marc; Baye, Ariane ULg; Straeten, Marie-Hélène et al

in Moreno Herrera, L.; Francia, G. (Eds.) Educational Policies. Implications for Equity, Equality and Equivalence (2004)

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See detailUsing higher-order sigma-delta modulators as interface for closed loop micromachined sensors
Kraft, Michael ULg; Dong, Y; Redman-White, W

in Proc. 5th Conf. on Advanced A/D and D/A Conversion techniques and their applications (ADDA) (2004)

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See detailAn immunohistochemical study of canine nasal aspergillosis.
Peeters, Dominique ULg; day, M. J.; Moore, Peter et al

in Proceedings of The 14th Annual Congress of the ECVIM-CA (2004)

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