References of "Paper published in a book"
     in
Bookmark and Share    
Peer Reviewed
See detailNumerical Simulations and Experimental Investigations of the Semi-Solid Metal Processing of Steels
Rassili, A.; Geuzaine, Christophe ULg; Legros, Willy ULg et al

in Proceedings of the 7th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2002 (2002)

Detailed reference viewed: 28 (0 ULg)
Peer Reviewed
See detailA General Method for the Harmonic Balance Finite Element Modelling of Rotating Electromagnetic Devices
Gyselinck, J.; Vandevelde, L.; Dular, Patrick ULg et al

in Proceedings of the 10th IEEE Conference on Electromagnetic Field Computation (CEFC'2002) (2002)

Detailed reference viewed: 5 (0 ULg)
Peer Reviewed
See detailA perturbation technique for Finite Element Modelling of Piezoelectric Vibrations in Travelling Wave Ultrasonic Motors
Ledinh, T.; Dular, Patrick ULg; Gyselinck, J. et al

in Proceedings of the second international conference on advanced computational methods in engineering, ACOMEN 2002 (2002)

Detailed reference viewed: 8 (0 ULg)
Peer Reviewed
See detailMulti-Harmonic Modelling of Motional Magnetic Field Problems using a Hybrid Finite Element--Boundary Element Discretisation
Gyselinck, J.; Geuzaine, Christophe ULg; Dular, Patrick ULg et al

in 2nd international conference on advanced computational methods in engineering, ACOMEN 2002 (2002)

Detailed reference viewed: 15 (3 ULg)
Peer Reviewed
See detailTwo-dimensional Harmonic Balance Finite Element Modelling of Electromagnetic Devices coupled to Nonlinear Circuits
Gyselinck, J.; Dular, Patrick ULg; Geuzaine, Christophe ULg et al

in Proceedings of the XVII Symposium on Electromagnetic Phenomena in Nonlinear Circuits, EPNC 2002 (2002)

Detailed reference viewed: 17 (0 ULg)
Full Text
See detailConsequences of t-channel unitarity for gamma(*) p and gamma(*) gamma(*) amplitudes
Cudell, Jean-René ULg; Martynov, E.; Soyez, G.

in Bentvelsen, S.; de Jong, P.; Koch, J. (Eds.) et al ICHEP 2002 (2002)

Detailed reference viewed: 6 (0 ULg)
See detailQuality assessment of GPS Integrated Precipitable Water Vapour Estimations using Water Vapour Radiometer Observations
Pottiaux, Eric; Warnant, René ULg

in Proceedings of the IAG General Assembly 2001 (2002)

Detailed reference viewed: 15 (0 ULg)
Full Text
See detailThe Polarization Properties of Broad Absorption Line QSOs: Observational Results
Hutsemekers, Damien ULg; Lamy, H.

in Mass Outflow in Active Galactic Nuclei: New Perspectives. ASPC 255 (2002)

Correlations between BAL QSO intrinsic properties and polarization have been searched for. Some results are summarized here, providing possible constraints on BAL outflow models.

Detailed reference viewed: 6 (0 ULg)
Full Text
See detailOverview of the COMPETE program. ((V))
Ezhela, V. V.; Cudell, Jean-René ULg; Gauron, P. et al

in Jenkovsky, L.; Fiore, R. (Eds.) DIFFRACTION 2002: INTERPRETATION OF THE NEW DIFFRACTIVE PHENOMENA IN QUANTUM CHROMODYNAMICS AND IN THE S - MATRIX THEORY (2002)

Detailed reference viewed: 35 (2 ULg)
Full Text
See detailAnalytic amplitudes for hadronic forward scattering: COMPETE update
Nicolescu, B.; Cudell, Jean-René ULg; Ezhela, V. V. et al

in Bentvelsen, S.; de Jong, P.; Koch, J. (Eds.) et al ICHEP 2002 (2002)

Detailed reference viewed: 5 (0 ULg)
Peer Reviewed
See detailOn the value of incorporating dominance effects in genetic evaluation of dairy cattle.
Druet, Tom ULg; Solkner, J.; Misztal, I. et al

in Proceedings of the 7th World Congress on Genetics Applied to LivestockProduction, Montpellier, France, August, 2002. Session 1 (2002)

Detailed reference viewed: 16 (2 ULg)
Full Text
Peer Reviewed
See detailPotential of the NDSC in support of the Kyoto Protocol: Examples from the station Jungfraujoch, Switzerland
Zander, Rodolphe ULg; Mahieu, Emmanuel ULg; Servais, Christian ULg et al

in Van Ham, J.; Baede, A. P. M.; Guicherit, R. (Eds.) et al Non-CO2 Greenhouse Gases: Scientific Understanding, Control Options and Policy Aspects (2002)

This paper gives a brief description and “raison d’être” of the Network for the Detection of Stratospheric Change (NDSC) as well as its key research tasks to address the broader goal of monitoring ... [more ▼]

This paper gives a brief description and “raison d’être” of the Network for the Detection of Stratospheric Change (NDSC) as well as its key research tasks to address the broader goal of monitoring atmospheric changes and to identify their causes and related impacts on mankind’s environment. While the Network has primarily focussed, thus far, on monitoring the ozone layer and assessing global compliance with the Montreal Protocol, ongoing implementations and new capabilities have enabled it to adapt to more recent political developments such as the Kyoto Proto-col on substances affecting the climate system. Examples of activities in support of the latter are reported, based on infrared solar observations at the Jungfraujoch station. [less ▲]

Detailed reference viewed: 67 (15 ULg)
See detailModeling the Martian ionosphere using the Total Electron Content measurement by the NEIGE/NETLANDER experiment
Morel, Laurent; Witasse, Olivier; Warnant, René ULg et al

in Proceedings of the XXVII URSI General Assembly (2002)

Detailed reference viewed: 15 (3 ULg)
See detailCharacteristics and Cause of Localized Auroral Uv Emission At High Latitude
Frey, H. U.; Mende, S. B.; Immel, T. J. et al

in EGS XXVII General Assembly, Nice, 21-26 April 2002 (2002)

The FUV instrument on IMAGE frequently observes localized ultraviolet emission at high latitudes, poleward of the general auroral oval. These localized emissions occur during northward IMF conditions and ... [more ▼]

The FUV instrument on IMAGE frequently observes localized ultraviolet emission at high latitudes, poleward of the general auroral oval. These localized emissions occur during northward IMF conditions and there are two different types of them. One type is especially distinct in the observations of Doppler shifted Lyman alpha emission from proton precipitation. This type occurs during high solar wind dynamic pressure. We interpret this emission as the optical signature of proton precipitation into the cusp after lobe reconnection at the magnetopause. The second type of localized emission is distinct in the wide-band (WIC) and oxygen (SI13) images, but is absent in the proton images. This emission occurs during positive IMF By, but very low solar wind density and dynamic pressure. We interpret this emission as the optical signature of electron acceleration in the upward part of a field aligned current circuit after reconnection. [less ▲]

Detailed reference viewed: 10 (1 ULg)
See detailIonospheric Conductances Due To Auroral Proton and Electron Precipitation Deduced From Image-fuv Observations.
Coumans, Valérie ULg; Hubert, Benoît ULg; Meurant, M. et al

in EGS XXVII General Assembly, Nice, 21-26 April 2002 (2002)

The FUV instrument on the IMAGE (Imager for Magnetopause-to-Aurora Global Ex- ploration) satellite monitors the aurora in three different spectral regions. The Wide- band Imaging Camera (WIC) observes the ... [more ▼]

The FUV instrument on the IMAGE (Imager for Magnetopause-to-Aurora Global Ex- ploration) satellite monitors the aurora in three different spectral regions. The Wide- band Imaging Camera (WIC) observes the molecular N2 LBH and the atomic NI emissions at 140-180 nm. The two channels of the Spectrographic Imager (SI) ob- serve the Doppler shifted Lyman- emission at 121.8 nm due to precipitating protons (SI12) and the electron auroral emission of OI at 135.6 nm (SI13). We calculate the Pedersen and Hall ionospheric conductances due to auroral particles based on FUV observations separately for the proton and electron precipitation. We first estimate the electron and proton energy fluxes from the FUV data, relying on energy degradation and auroral emission models. A two-stream model is used for the electron aurora while the proton aurora modeling is based on the direct Monte Carlo method, which gives a stochastic solution to the Boltzmann equations for the H+ - H beam. The electron energy is evaluated by combining observations from the three FUV instruments. For the proton energy, we use a statistical model based on in-situ particle measurements. Second, the particle energy and energy flux are used to estimate the ionization rates separately for protons and electrons, consistently with the energy degradation models. Finally, the electron and ion densities are estimated from ionization profiles, and the Pedersen and Hall conductances are calculated from fundamental equations. Appli- cations of the method to the distribution of the conductance at winter solstice in the course of substorm development over the north polar region will be illustrated. [less ▲]

Detailed reference viewed: 12 (1 ULg)
See detailThe Electron and Proton Energy Input Into The Auroral Thermosphere During Substorms: Remote Sensing With Image-fuv
Hubert, Benoît ULg; Gérard, Jean-Claude ULg; Meurant, M. et al

in EGS XXVII General Assembly, Nice, 21-26 April 2002 (2002)

This paper investigates the dynamical properties of the Eta model, a state-of-the- art nested limited-area model, following the approach previously developed by the present authors. It is first shown that ... [more ▼]

This paper investigates the dynamical properties of the Eta model, a state-of-the- art nested limited-area model, following the approach previously developed by the present authors. It is first shown that the intrinsic dynamics of the model depends crucially on the size of the domain, with a non-chaotic behavior for small domains, supporting earlier findings on the absence of sensitivity to the initial conditions in these models. The quality of the predictions of several Eta model versions differing by their domain size is next evaluated and compared with the Avn analyses on a targeted region, centered on France. Contrary to what is usually taken for granted, a non-trivial relation between predictability and domain size is found, the best model versions be- ing the ones integrated on the smallest and the largest domain sizes. An explanation in connection with the intrinsic dynamics of the model is advanced. [less ▲]

Detailed reference viewed: 8 (0 ULg)
Peer Reviewed
See detailLa protection juridique et la circulation routière
Paris, Catherine ULg

in Développements récents du droit des accidents de la circulation (2002)

Detailed reference viewed: 25 (0 ULg)
Peer Reviewed
See detailModulation of dendritic cell phenotype by PGD2 and PGJ2 : consequence on the orientation of T helper response
Gosset, P.; Bureau, Fabrice ULg; Angeli, V. et al

in Proceedings : International Conference of the American Thoracic Society (2002)

Detailed reference viewed: 12 (0 ULg)
Full Text
Peer Reviewed
See detailMéthode basée sur des cas et enseignement à distance visant le transfert des apprentissages : un exemple d'application
Leclercq, Dieudonné ULg; Georges, François ULg; Poumay, Marianne ULg

in Les méthodes actives dans l'enseignement supérieur. Regards pluriels et critiques sur les pratiques. (2002)

Detailed reference viewed: 53 (8 ULg)
Full Text
Peer Reviewed
See detailL'accompagnement du portage de cours en ligne comme facilitateur d'un déploiement de méthodes actives dans l'enseignement supérieur
Poumay, Marianne ULg; Dupont, Chantal ULg; Georges, François ULg et al

in Les méthodes actives dans l'enseignement supérieur. Regards pluriels et critiques sur les pratiques. (2002)

Le LabSET accompagne une vingtaine d'enseignants dans le portage à distance de leurs propres cours conventionnels, touchant plusieurs milliers d'apprenants au total. Défenseurs des pédagogies actives ... [more ▼]

Le LabSET accompagne une vingtaine d'enseignants dans le portage à distance de leurs propres cours conventionnels, touchant plusieurs milliers d'apprenants au total. Défenseurs des pédagogies actives, nous prônons l'idée que l'EAD n'est qu'un vecteur, un support dont on peut faire le pire comme le meilleur. L'une de nos actions, FORMADIS , assure l'accompagnement de 13 projets d'EAD (projets sélectionnés en 2001 par appel à propositions) par un minimum de 2 chercheurs, du personnel technique et l'apport d'un graphiste. La formation pédagogique se déroule en partie en ligne et en partie en présentiel de façon à correspondre et donc à servir directement aux différentes étapes d'élaboration d'un cours à distance, selon les principes d'isomorphisme et d'accent systématique sur le transfert. Cet accompagnement nous semble un moyen efficace de participer à la formation continuée des enseignants. Des démonstrations à mi-parcours ont montré la diversité des méthodologies mises en oeuvre dans ces cours et la valeur ajoutée due à l'EAD. Plus de 40 activités sont passées au crible du modèle des 7 paradigmes d'enseignement / apprentissage. Un nouvel appel à propositions d'accompagnements de projets d'EAD est lancé par le LabSET en 2002. [less ▲]

Detailed reference viewed: 49 (4 ULg)
Peer Reviewed
See detailCyclopentenone prostaglandins at low concetrations exert pro-inflammatory effects through oxidative stress-induced ERK1/2 activation
Bureau, Fabrice ULg; Desmet, Christophe ULg; Mélotte, C. et al

in Proceedings: Spring Meeting of the Belgian Society of Physiology and Pharmacology (2002)

Detailed reference viewed: 11 (4 ULg)
Peer Reviewed
See detailMaladies et croissance des veaux Blanc-Bleu Blege en fermes commerciales
de Behr, V.; Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg et al

in 9èmes Rencontres autour des Recherches sur les Ruminants (2002)

Detailed reference viewed: 11 (1 ULg)
Full Text
See detailInventorying urban areas with Very High Resolution Satellite Images
Van de Voorde, Tim; Binard, Marc ULg; Op ’t Eyndt, Tom

in Ramon, J.; Ruiz, M.; Gold, M. (Eds.) Procredings of the 5th AGILE Conference on Geographical Information Science (2002)

Prior to the commercial availability of Very High Resolution (VHR) satellite imagery, the applicability of Earth Observation data in the urban planning sector was very limited. The spatial resolution of ... [more ▼]

Prior to the commercial availability of Very High Resolution (VHR) satellite imagery, the applicability of Earth Observation data in the urban planning sector was very limited. The spatial resolution of the imagery, supplied by platforms like Landsat TM and SPOT HRV, was too coarse to be of real practical use to urban planners and their applications. Satellite images of urban or sub-urban areas are characterized by large radiometric variations due to the small size and the diversity of the objects. This in turn causes a radiometric contamination between neighbouring pixels which renders object recognition nearly impossible. Satellite images with a higher resolution might alleviate this problem. The dawn of the VHR era was thus anticipated with great aspiration by urban remote sensing researchers. In the framework of a DWTC/OSTC Telsat 4 pilot project we proposed a methodology to employ IKONOS-21 imagery to develop an inventory of built-up, and un-built areas in Belgium’s Flemish region. Such an inventory can be of use to regional planning agencies that are responsible for the implementation of the government’s planning policies. In Flanders, AROHM (Administration of Spatial Planning, Housing, Monuments and landscapes) records, monitors, and evaluates the built-up areas. To do this, they need an extensive data input from the communities, which requires a lot of time and effort. A reliable and swift technique, based on earth observation data, and applicable for each residential area in Flanders, would be of great value to them. Not only would it allow them to make swift assessments more frequently, they could also double-check incoming data from the communities. The aforementioned project consisted of three parts: the visual interpretation of two study areas (Hasselt and Ghent), the automatic classification of these areas using both Maximum Likelihood and Neural Network classifiers, and the development of GIS procedures to transform the classified images into thematic maps like, for instance, a map of building densities. [less ▲]

Detailed reference viewed: 51 (5 ULg)
Full Text
Peer Reviewed
See detailIntegrating geophysical and tracer test data for accurate solute transport modelling in heterogeneous porous media
Rentier, Céline; Brouyère, Serge ULg; Dassargues, Alain ULg

in Groundwater Quality: Natural and Enhanced Restoration of Groundwater Pollution (GQ’2001) (2002)

Detailed reference viewed: 31 (9 ULg)
Peer Reviewed
See detailStratégies nutritionnelles en vue de promouvoir le dépôt musculaire au détriment du dépôt graisseux : paramètres d'engraissement
Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg; de Behr, Vanessa et al

in Proceedings of the 7ème Carrefour des Productions Animales (2002)

Detailed reference viewed: 35 (5 ULg)
Peer Reviewed
See detailInfluence of dietary protein source on fattening parameters of Belgian Blue double muscled cows
Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg; de Behr, Vanessa et al

in Book of abstracts of the 53rd Annual Meeting of the European Association for Animal Production (2002)

Detailed reference viewed: 20 (5 ULg)
See detailFire design study case of a high-rise steel storage building
Zaharia, Raoul; Franssen, Jean-Marc ULg

in Proceedings of the International Colloquium on Stability and Ductility of Steel Structures (2002)

Detailed reference viewed: 35 (2 ULg)
Peer Reviewed
See detailBLUPF90 and related programs (BGF90)
Misztal, I.; Tsuruta, S.; Strabel, T. et al

in Proceedings from the 7th World Congress on Genetics Applied to Livestock Production (2002)

Detailed reference viewed: 302 (3 ULg)
See detailNumerical simulation of cavitation and grain growth during superplastic forming
Ponthot, Jean-Philippe ULg; ADAM, L.

in Proceedings of Plasticity, damage and Fracture at Macro, Micro and Nano Scales (2002)

Detailed reference viewed: 12 (1 ULg)
See detailManagement of hypercalcemia from Parathyroid Carcinoma by immunisation
Betea, Daniela ULg; Bradwell, A. R.; Valdes Socin, Hernan Gonzalo ULg et al

in The Endocrine Society's 84th Annual Meeting - Abstract book (2002)

Detailed reference viewed: 12 (1 ULg)
Full Text
See detailContribution à la caractérisation de la distribution spatiale des teneurs en éléments traces métalliques dans les sols en région limoneuse belge
Colinet, Gilles ULg; Lacroix, D.; Laroche, J. et al

in Actes des 7ème Journées nationales de l'étude des sols (2002)

Detailed reference viewed: 13 (2 ULg)
Full Text
See detailLine-Profile Variability in the Massive Binary System HD 149404
Nazé, Yaël ULg; Carrier, Fabien; Rauw, Grégor ULg

in Interacting Winds from Massive Stars (2002)

Not Available

Detailed reference viewed: 9 (0 ULg)
See detailL’HACCP dans la filière lait.
Belleflamme, Christel ULg

in Septième Carrefour des Productions animales : Productions animales et santé humaine. (2002)

Detailed reference viewed: 28 (6 ULg)
Peer Reviewed
See detailAnalytical study of the interaction between bending and axial force in bolted joints
Boissonnade, N.; Jaspart, Jean-Pierre ULg; Muzeau, J. P. et al

in Proceedings of the Third European Conference on Steel Structures (EUROSTEEL) (2002)

Detailed reference viewed: 53 (3 ULg)
Full Text
Peer Reviewed
See detailIsolement et caractérisation de sept lignées monosomiques d'addition de Gossypium australe F. Muell. sur G. hirsutum L.
Ahoton, L.; D'Hont, A.; Baudoin, Jean-Pierre ULg et al

in Actes des VIIIèmes Journées Scientifiques du Réseau "Biotechnologies, Amélioration des plantes et Sécurité alimentaire" (2002)

Afin d'évaluer les possibilités d'exploiter directement l'espèce sauvage australienne G. australe dans un programme d'amélioration génétique de la principale espèce de cotonnier cultivé, l'hexaploïde G ... [more ▼]

Afin d'évaluer les possibilités d'exploiter directement l'espèce sauvage australienne G. australe dans un programme d'amélioration génétique de la principale espèce de cotonnier cultivé, l'hexaploïde G. hirsutum x G. australe a été rétrocroisé par G. hirsutum pendant deux générations successives pour produire des pentaploïdes et des souches aneuploïdes. L'utilisation des pentaploïdes comme parent mâle dasn les rétrocroisements avec G. hirsutum a donné une importante descendance de plantes autofertiles qui étaient euploïdes ou oqui ne portaient qu'un seul chromosome surnuméraire de G. australe en plus des 52 chromosomes de G. hirsutum. Le caryotype de ces plantes a été déterminé au moyen d'observations cytogénétiques classiques de cellules mères des grains de pollen se trouvant en métaphase 1 de la méiose et par application de l'hybridation génomique in situ (GISH) avec l'ADN total du parent G. australe de l'hybride sur des chromosomes en métaphase de la mitose. L'analyse au moyen de marqueurs SSR cartographiés des plantes monosomiques d'addition produites a permis de distinguer parmi elles sept lignées porteuses d'un chromosome différent de G. australe. L'expression phénotypique de chacun de ces sept chromosomes de l'espèce australienne en addition du fonds génique de G. hirsutum est présentée. Les résultats obtenus mettent en évidence la subjectivité des caractères morphologiques pour distinguer entre elles des lignées monosomiques d'addition et soulignent l'importance de l'emploi de marqueurs moléculaires pour caractériser avec certitude des plantes porteuses de chromosomes surnuméraires étrangers. [less ▲]

Detailed reference viewed: 17 (5 ULg)
Full Text
See detailSearching for Colliding-Wind Signatures in a Sample of O-Star Binaries
Rauw, Grégor ULg; Sana, H.; Vreux, Jean-Marie ULg et al

in Interacting Winds from Massive Stars (2002)

Not Available

Detailed reference viewed: 4 (0 ULg)
Full Text
See detailOptical Spectroscopy of Colliding-Wind Systems to be Observed with XMM
Sana, H.; Rauw, Grégor ULg; Gosset, Eric ULg et al

in Interacting Winds from Massive Stars (2002)

Not Available

Detailed reference viewed: 7 (0 ULg)
See detailL'initiation de Télémaque dans l'Odyssée
Renaud, Jean-Michel ULg; Wathelet, Paul ULg

in Hurst, André; Létoublon, Françoise (Eds.) La Mythologie et l'Odyssée. Hommage à Gabriel Germain. Actes du Colloque international de Grenoble, 20-22 mai 1999 (2002)

Ces dernières années, on a souvent décelé, dans les mythes, des traits initiatiques. Il s'agit là d'une possibilité d'explication utile, mais qui doit être maintenue dans des limites précises afin d ... [more ▼]

Ces dernières années, on a souvent décelé, dans les mythes, des traits initiatiques. Il s'agit là d'une possibilité d'explication utile, mais qui doit être maintenue dans des limites précises afin d'éviter des dérives fâcheuses. En ce qui concerne la mythologie grecque, il semble y avoir une tendance à distinguer deux niveaux d'initiation : 1) celle qui intéresse les adolescents qui doivent passer à l'âge adulte; 2) celle qui concerne un certain nombre de personnages extraordinaires. Dans le premier cas, il s'agit pour le jeune homme d'affirmer sa virilité en tuant un gibier, un ennemi ou un monstre redoutables. Il doit agir seul, mais des maîtres d'initiation peuvent lui apporter une aide secondaire et ils doivent juger de la réussite de l'épreuve. Dans le second cas, un être d'exception connaît une épreuve, souvent une mort réelle ou symbolique. S'il réussit l'épreuve, il acquiert une vertu particulière, éventuellement l'immortalité ou un succédané de celle-ci. Au cours de la seconde épreuve, le candidat peut être aidé par une divinité, dont le rôle est plus ou moins important et parfois décisif. Dans le présent article, on a rappelé qu'Ulysse avait successivement remporté le deux épreuves initiatiques, la première dans sa jeunesse en tuant un sanglier redoutable, et la seconde au cours de son périple qui le conduit dans l'autre monde. Examinant le rôle de son fils, Télémaque, particulièrement dans la Télémachie au début de l'Odysse, on est arrivé à la conclusion qu'apparemment Télémaque avait raté la première épreuve (son rôle à l'Assemblée d'Ithaque) et qu'il avait réussi la seconde (son voyage et son séjour à Pylos, puis à Sparte, est présenté comme un voyage dans l'autre monde, une sorte de réduction du périple de son père). [less ▲]

Detailed reference viewed: 170 (3 ULg)
Full Text
See detailAnalyse de la cessation d'activité en Belgique
Dellis, Arnaud; Desmet, Raphaël; Jousten, Alain ULg et al

in Capital humain et marchés du travail : perspectives régionales et européennes (2002)

L’objectif de cette étude est de montrer l’influence du système de retraite sur la cessation d’activité. La première étape consiste à estimer les incitations financières implicites à ce système et ensuite ... [more ▼]

L’objectif de cette étude est de montrer l’influence du système de retraite sur la cessation d’activité. La première étape consiste à estimer les incitations financières implicites à ce système et ensuite à les introduire comme variables explicatives du départ à la retraite dans une régression de type probit. Le résultat majeur de cette contribution est d’indiquer le rôle significatif de ces incitations sur les décisions individuelles. La seconde étape consiste à utiliser les résultats de cette modélisation pour analyser l’effet de réformes sur la prolongation de l’activité. Il apparaît que l’aménagement de certaines règles d’octroi et de calcul des pensions pourrait inciter les travailleurs âgés à différer l’âge de leur retraite. [less ▲]

Detailed reference viewed: 66 (17 ULg)
Full Text
See detailConsequences of t-channel unitarity for the interaction of real and virtual photons at high energies
Martynov, E.; Cudell, Jean-René ULg; Soyez, G.

in Jenkovsky, L.; Fiore, R. (Eds.) DIFFRACTION 2002: INTERPRETATION OF THE NEW DIFFRACTIVE PHENOMENA IN QUANTUM CHROMODYNAMICS AND IN THE S - MATRIX THEORY (2002)

Detailed reference viewed: 13 (0 ULg)
Peer Reviewed
See detailImpact of uranium mining and processing on the environment of mountainous areas of Kyrgyzstan
Torgoev, Isakbek; Aleshyn, U; Havenith, Hans-Balder ULg

in Uranium in the Aquatic Environment (2002)

Abstract: In this report the results of analysis of modern geo-ecological situation in areas of uranium mining and milling in the territory of Kyrgyzstan are presented. Major threats for the mountain ... [more ▼]

Abstract: In this report the results of analysis of modern geo-ecological situation in areas of uranium mining and milling in the territory of Kyrgyzstan are presented. Major threats for the mountain environment and citizens which are connected to mining and processing of the uranium are due to the contamination of the hydrosphere by radio nuclides, and due to the stimulation of dangerous natural and technological processes (landslides, mudflows, destruction of the tailings and dumps) with unfavorable ecological consequences. [less ▲]

Detailed reference viewed: 8 (0 ULg)
Full Text
See detailL'HACCP dans la filière lait.
Belleflamme, Christel ULg; De Schutter, Tine; Sindic, Marianne ULg

in Productions animales et santé humaine. (2002)

Detailed reference viewed: 68 (3 ULg)
See detailLe Secret des Géants
Beckers, Albert ULg

in Conférence sur invitation : Cotonou - Bénin, 02 au 04 décembre 2002 - Abstract book (2002)

Detailed reference viewed: 6 (1 ULg)
Peer Reviewed
See detailSoil nitrates in pastures rotationally grazed by cows: relation with urea in milk and blood plasma
Dieguez Cameroni, F.; Cabaraux, Jean-François ULg; de Behr, V. et al

in Proccedings of 19th European Grassland Federation General Meeting (2002)

Detailed reference viewed: 22 (0 ULg)
See detailDe l'image de l'autre à sa représentation : médiation et médiatisation
Servais, Christine ULg

in Trajectoires interculturelles : Représentation et image de l'autre dans le domaine francophone (2002)

Detailed reference viewed: 46 (8 ULg)
Full Text
Peer Reviewed
See detailFormadis : soutien au déploiement de formations ouvertes et à distance, en Wallonie et à Bruxelles
Dupont, Chantal ULg; Poumay, Marianne ULg; Georges, François ULg et al

(2002)

This paper presents an initiative, FORMADIS, aiming at producing a critical mass of quality courses and thus, contributing to the dissemination of good practices in ODL. A competitive call has been ... [more ▼]

This paper presents an initiative, FORMADIS, aiming at producing a critical mass of quality courses and thus, contributing to the dissemination of good practices in ODL. A competitive call has been launched in 2001 and 2002 to select 23 projects to be closely coached and turned into on-line active courses. The teachers, by working on their own course with the support of instructional, technical and graphic specialists move from a traditional way of considering their course to a more open view of what it could be. Applying the principles of isomorphism and transfer, the teacher training program in pedagogy, partly on line and partly face to face, helps in the different stages of development of the course. As anticipated, this setting appears to be an effective way to provide continuing education to teachers. The produced courses illustrate the diversity of implemented strategies and the added-value due to ODL. Over 40 activities have been described and analysed, according to the “7 teaching/learning paradigms” model. [less ▲]

Detailed reference viewed: 42 (4 ULg)
Full Text
Peer Reviewed
See detailNumerical simulation of the solidification of a beam blank in the mould
Hubsch, P.; Bourdouxhe, M.; Pascon, Frédéric ULg et al

in Proceedings of the 4th European Continuous Casting Conference (2002)

The stability of the casting process and the wear of the mould as well as the quality of the product depend strongly on the mould design. This is particularly true when considering the production of beam ... [more ▼]

The stability of the casting process and the wear of the mould as well as the quality of the product depend strongly on the mould design. This is particularly true when considering the production of beam blanks. If the mould is too tight, thermal contraction can generate considerable contact forces between the product and the mould on the inner surfaces of the flanges. If it is not tight enough, the thermal coupling between the mould and the beam blank is not sufficient to allow the solidification of a skin of the required thickness upon exit from the mould. A finite element model was developed to assist in the mould design. This model takes both the thermal and mechanical interaction between the mould and the product into account. The effect of solidification is implicitly included in the (thermal) finite element formulation while the ferro-static pressure is applied by the means of a specially developed element. The model was applied to a medium gage beam blank cast at ProfilARBED Differdange. The skin thickness as well as the localisation of the wear of the mould predicted by the model are in good agreement with observations made in industrial practice. [less ▲]

Detailed reference viewed: 97 (4 ULg)
Full Text
Peer Reviewed
See detailDiscussion on “Ultimate Limit State Design of Ship Hulls"
Rigo, Philippe ULg

in SNAME Transactions vol. 110 (2002)

Detailed reference viewed: 39 (0 ULg)
Peer Reviewed
See detailAspects du comique dans le Roman en prose de Guillaume d’Orange
Henrard, Nadine ULg

in Bianciotto, Daniel; Galderisi, Claudio (Eds.) L'épopée romane. Actes du XVe Congrès international Rencesvals (2 vol) (2002)

Detailed reference viewed: 17 (2 ULg)
Peer Reviewed
See detailA 3-D Magnetic Vector Potential Formulation Taking Eddy Currents in Lamination Stacks Into Account
Dular, Patrick ULg; Gyselinck, J.; Geuzaine, Christophe ULg et al

in Proceedings of the 10th IEEE Conference on Electromagnetic Field Computation (CEFC'2002) (2002)

Detailed reference viewed: 17 (1 ULg)
Peer Reviewed
See detailApplication of the Fast Multipole Method to Hybrid Finite Element--Boundary Element Models
V Sabariego, Ruth ULg; Gyselinck, J.; Geuzaine, Christophe ULg et al

in Proceedings of the 2nd international conference on advanced computational methods in engineering, ACOMEN 2002 (2002)

Detailed reference viewed: 11 (0 ULg)
Peer Reviewed
See detailModeling of Thin Insulating Layers in Dual Magnetodynamic Formulations
Dular, Patrick ULg; Geuzaine, Christophe ULg

in Proceedings of the 10th IEEE Conference on Electromagnetic Field Computation (CEFC'2002) (2002)

Detailed reference viewed: 6 (1 ULg)
Peer Reviewed
See detailDual finite element formulations taking eddy currents in lamination stacks into account
Dular, Patrick ULg; Gyselinck, J.; Geuzaine, Christophe ULg et al

in Proceedings of the 5th Brazilian Conference on Electromagnetics, CBMag 2002 (2002)

Detailed reference viewed: 14 (1 ULg)
Full Text
Peer Reviewed
See detailDevelopment of a multibody model of a sprayer
Ooms, David ULg; Lebeau, Frédéric ULg; Maton, Nicolas et al

in Proceedings of AgEng (2002)

A multibody model of a sprayer boom including the suspension was developed by using ADAMS 11.0 (Mechanical Dynamics). The model was designed with the aim to describe the dynamic behaviour of different ... [more ▼]

A multibody model of a sprayer boom including the suspension was developed by using ADAMS 11.0 (Mechanical Dynamics). The model was designed with the aim to describe the dynamic behaviour of different types of booms and suspensions (double trapezium, trapezium, pendulum, …). This was obtained by creating a general model in which geometrical (dimensions) and mechanical parameters (mass and inertia, friction coefficients, stiffness and damping coefficients of the hinges, …) of the system were easily modified. A graphical interface especially designed authorised this easy modification. The validation of the model was obtained by measuring in real conditions the frame movements as solicitations and the boom movements as responses. The method was applied on a trailed sprayer equipped with a boom of 24 m and a trapezoidal suspension. Good accordance was found between measured and simulated vertical displacements. The model may decrease the development costs of suspension and boom designs. [less ▲]

Detailed reference viewed: 37 (5 ULg)
See detailAcromégalie : Diabète, intolérance au glucose et sensibilité à l'insuline
Valdes Socin, Hernan Gonzalo ULg; Vroonen, Laurent ULg; Betea, Daniela ULg et al

in XXème Congrès de la Société Française d'Endocrinologie - Abstract book (2002)

Detailed reference viewed: 22 (1 ULg)
Full Text
Peer Reviewed
See detailMapping within-field soil variability for precision agriculture using electromagnetic induction
Hanquet, Bernard; Frankinet, Marc; Parez, Vincent et al

in Proceedings of AgEng (2002)

Among the crops production factors, the soil is obviously one of the most important. Therefore, within the context of Precision Agriculture, the spatial variability knowledge of its physical and chemical ... [more ▼]

Among the crops production factors, the soil is obviously one of the most important. Therefore, within the context of Precision Agriculture, the spatial variability knowledge of its physical and chemical properties is essential as a decision support information for cultural operations modulation. The purpose of this study is to assess the capability of electromagnetic induction sensing of apparent electrical conductivity (ECa) for the characterisation of withinfield variability of soil physical and/or chemical properties in the particular soil conditions encountered in our experimental area, namely non-saline deep silty soils. ECa maps were produced on a 7ha field in April 2001, September 2001 and April 2002. Concurrently, an intensive soil survey (112 points) was carried out in February 2001 in order to determine a series of physical, textural and chemical soil parameters. ECa accurately described clay content, and exchangeable K and Ca cations concentrations. [less ▲]

Detailed reference viewed: 34 (6 ULg)
Full Text
Peer Reviewed
See detailSpray controller for horizontal boom movements compensation
El Bahir, Loussain; Lebeau, Frédéric ULg; Destain, Marie-France ULg et al

in Proceedings of AgEng2002 (2002)

Longitudinal spray distribution is mainly affected by the horizontal speed variations of the nozzles. Manufacturers classically try to reduce unwanted nozzles movements using horizontal boom suspension ... [more ▼]

Longitudinal spray distribution is mainly affected by the horizontal speed variations of the nozzles. Manufacturers classically try to reduce unwanted nozzles movements using horizontal boom suspension but these methods show performance and price limitations. The purpose of this paper is to propose a spray controller aiming to compensate the effect of the horizontal boom movements on the spray distribution besides the effect of tractor speed variations. The controller is based on three main parts: a control law describing the relationship between nozzle speed, nozzle flow and spray coverage; a real time measurement of the boom horizontal speed variations using micro-machined capacitive accelerometers and Pulse Width Modulation (PWM) no zzle flow actuators. A prototype was developed using a processor board controller (dSpace) and tested on a laboratory test bench. The nigrosine solution spray coverage was measured using image analysis for field representative multi-sine nozzle speed variations. The spray coverage uniformity using the spray controller showed about 51% compensation of the spray coverage variations observed without controller. [less ▲]

Detailed reference viewed: 34 (2 ULg)
Full Text
Peer Reviewed
See detailApplication of image analysis to the identification and rating of road surface distress
Rasse, Catherine; Leemans, Vincent ULg; Destain, Marie-France ULg et al

in Correia; Branco (Eds.) Bearing Capacity of Roads, Railways and Airfields (2002)

Numerical image analysis is used to detect narrow cracks on bituminous pavement. This problem is complicated because of the variable road aspect, which depends on coarseness textures, changing ambient ... [more ▼]

Numerical image analysis is used to detect narrow cracks on bituminous pavement. This problem is complicated because of the variable road aspect, which depends on coarseness textures, changing ambient lighting, presence of humidity and because of the poor contrast of the cracks with regard to road texture. The paper presents algorithms suited to detect random cracks edges in a noisy environment in three stages. The pre-treatment consisted mainly in applying a background correction to eliminate the heterogeneity due to humidity, shade, ... In the treatment, a threshold value was applied to segment the 'object' from the rest of the image. As these objects may be cracks, part cracks, or some noise erroneously segmented as defect, a post-treatment was applied to appreciate more accurately if a pixel belonged to an object or to the background. It aimed also to assembly parts of the cracks in continuous structure. When compared to visual detection, efficient detection of cracks is obtained. Further work needs to be done to get an automatic detection of the cracks whatever the road texture. [less ▲]

Detailed reference viewed: 27 (0 ULg)
Full Text
Peer Reviewed
See detailReliability of transport models calibrated on field tracer experiments: breakthrough curve sensitivity to tracer injection conditions
Brouyère, Serge ULg; Dassargues, Alain ULg

in in Calibration and Reliability in Groundwater Modelling: A Few Steps Closer to Reality (2002)

The reliability of groundwater transport models depends strongly on accurate identification of hydrodispersive processes and quantification of corresponding parameters. Calibration of these models is ... [more ▼]

The reliability of groundwater transport models depends strongly on accurate identification of hydrodispersive processes and quantification of corresponding parameters. Calibration of these models is often performed using results of field tracer experiments. However, little attention is usually paid to the influence of injection conditions and well-aquifer interactions on resulting breakthrough curves at the sampling well. The tracer input function in the aquifer is often assimilated to a Dirac impulse and the breakthrough curve is supposed to reflect only the hydrodispersive processes affecting the tracer behaviour in groundwater. Actually, flow conditions, aquifer heterogeneity and well-aquifer interactions can have a significant influence on tracer injection. Using a new mathematical approach developed to model well-aquifer interactions and injection conditions in a more physical way, numerical experiments were conducted in order to highlight the potential impact of injection conditions on the results of radially converging flow tracer tests. This analysis clearly shows that neglecting the influence of actual injection conditions can lead to: (a) errors on fitted parameters; (b) misleading identification of the active transport processes. [less ▲]

Detailed reference viewed: 43 (7 ULg)
See detailGénéalogie de la peinture de paysage au XVIe siècle
Allart, Dominique ULg

in Toussaint, Jacques (Ed.) Autour de Henri Bles (2002)

Detailed reference viewed: 49 (7 ULg)
Full Text
Peer Reviewed
See detailPrimitivisme agrarien ou capitalisme ? Economie et société chez les jansénistes du Grand Siècle
Vanhoorne, Frédérick ULg

in Cottret, Bernard; Cottret, Monique; Michel, Marie-José (Eds.) Jansénisme et puritanisme. Actes du colloque de Port-Royal des Champs, 14 septembre 2001 (2002)

Detailed reference viewed: 76 (7 ULg)
Full Text
Peer Reviewed
See detailLe voyage en train et en images. Une expérience photographique de la discontinuité et de la fragmentation
Mélon, Marc-Emmanuel ULg

in Albéra, François; Braun, Marta; Gaudreault, André (Eds.) Arrêt sur image et fragmentation du temps. Cinématographie, kinétographie, chronophotographie (2002)

Detailed reference viewed: 66 (5 ULg)
Peer Reviewed
See detailBien-être animal: les apports de l'Ethologie.
Vandenheede, Marc ULg

in Journée d'étude Bien-être des porcs et des volailles (2002)

Detailed reference viewed: 40 (7 ULg)
Full Text
See detailEthanol-conditioned withdrawal syndrome
Quertemont, Etienne ULg; De Witte, Philippe

in Proceedings of the 22nd European Winterconference on Brain Research (2002)

The withdrawal syndrome is closely related to the concepts of tolerance and physical dependence. The chronic consumption of a drug is believed to induce adaptive changes that are designed to oppose the ... [more ▼]

The withdrawal syndrome is closely related to the concepts of tolerance and physical dependence. The chronic consumption of a drug is believed to induce adaptive changes that are designed to oppose the acute effects of the drug. Such adaptive changes increase the tolerance to acute drug effects but lead to physical dependence, which is revealed by withdrawal symptoms when the drug is cleared from the body. However, another form of adaptive response to repeated drug consumption has been identified. This adaptive response appears after the intermittent repeated administration of a drug in association with the same set of environmental stimuli. After several associations, these environmental stimuli become able to induce a conditioned adaptive response. Such response leads to the phenomenon of “environment-dependent tolerance” that was observed with many drugs of abuse. However, if the drug is not administered, the conditioned stimuli alone may induce a “conditioned withdrawal syndrome”. Although less studied than the classical withdrawal syndrome, this conditioned withdrawal syndrome may be of importance for the development of drug dependence. In our experiments, we have studied the development of a conditioned withdrawal syndrome after repeated associations of a specific set of environmental stimuli with ethanol injections in Wistar rats. After repeated administrations of ethanol, the rats showed a clear environmental-dependent tolerance to ethanol. Furthermore, these conditioned stimuli induced behavioral (hyperexcitation) and neurochemical (increase glutamate release) responses similar to those observed after chronic alcohol withdrawal. [less ▲]

Detailed reference viewed: 11 (0 ULg)
Full Text
Peer Reviewed
See detailRepairing Concrete with Self Compacting Concrete: Testing Methodology Assessment
Courard, Luc ULg; Darimont, Anne ULg; Degeimbre, Robert ULg et al

in Shah, S. P. (Ed.) Self-Consolidating Concrete (2002)

The repair of concrete deck slabs or balcony needs a special composition of concrete and self-compacting concrete (SCS) is advantageously used for such repair operation in comparison with patch repair or ... [more ▼]

The repair of concrete deck slabs or balcony needs a special composition of concrete and self-compacting concrete (SCS) is advantageously used for such repair operation in comparison with patch repair or gunite. Two compositions of concrete (classical and SCC concretes) and two repair mortars are tested according to a new testing procedure. The penetration of SCC beneath the concrete plate structure but also the adhesion to the old concrete substrate are analysed. The rheology of the material is measured by means of usual tests and rheometer. The different materials have been characterised through physical, chemical and mechanical test program. Two types of applications (vertical and horizontal) are presented and commented. Analysis of the interface between concrete substrate and SCC is given on the base of pull-off test and microscopical observations. [less ▲]

Detailed reference viewed: 282 (1 ULg)
Full Text
See detailLa "question de l'orthographe" wallonne
Boutier, Marie-Guy ULg

in micRomania (Ed.) Ecrire les langues d'oïl (2002)

Detailed reference viewed: 41 (3 ULg)
Full Text
Peer Reviewed
See detailDaily management of the transition to the future.
Goffinet, Nathalie ULg; Delvenne, Catherine ULg; Chalon, Patrice ULg et al

in Proceedings of the 8th European Conference of medical and Health Libraries, Köln, Septembre 16-21, 2002. (2002)

Detailed reference viewed: 52 (14 ULg)
Peer Reviewed
See detailIs it safe to design a building structure with simple connections, when they are known to exhibit a semi-rigid behaviour
Braham, M.; Jaspart, Jean-Pierre ULg

in Proceedings of the Third European Conference on Steel Structures (EUROSTEEL) (2002)

Detailed reference viewed: 17 (0 ULg)
Full Text
Peer Reviewed
See detailMicroscopic identification of complex MC, M2C, M7C3, M6C and M23C6 carbides in high-speed steels
Tchuindjang, Jérôme Tchoufack ULg; Lecomte-Beckers, Jacqueline ULg

in Proceedings of The International Conference Joint Microscopic Meeting (2002)

High-speed steels (HSS) rolls are used in front finishing stands of hot strip mills. Good wear resistance and hardness at high temperature are defining features of HSS. Many types of carbides are present ... [more ▼]

High-speed steels (HSS) rolls are used in front finishing stands of hot strip mills. Good wear resistance and hardness at high temperature are defining features of HSS. Many types of carbides are present in these alloys, each having different effect upon the final properties of HSS. As a result, nature, morphology and amount of these carbides are factors of important concern. Identification and characterisation of HSS carbides were realised with optical microscopy combined with electron microscopy. [less ▲]

Detailed reference viewed: 165 (9 ULg)
Full Text
Peer Reviewed
See detailChronique de jurisprudence. Les contrats. Le contrat d'entreprise et la loi Breyne
Kohl, Benoît ULg

in Chroniques du droit à l'usage du notariat (2002)

Detailed reference viewed: 60 (0 ULg)
Full Text
Peer Reviewed
See detailChronique de jurisprudence. Les contrats. Le mandat.
Kohl, Benoît ULg

in Chroniques du droit à l'usage du notariat (2002)

Detailed reference viewed: 79 (5 ULg)
Full Text
See detailBericht über das Patrimonium librorum in Litauen
Vanhaegendoren, Koen ULg

in Harlfinger, Dieter (Ed.) Rinascimento virtuale - Digitale Palimpsestforschung. Perspektiven des Netzwerks in den Beitrittsländern Mittel- und Osteuropas und in angrenzenden Staaten. Berichtband der Konferenz des Netzwerks Rinascimento virtuale zur digitalen Palimpsestforschung, 28.-29. Juni 2002. (2002)

Detailed reference viewed: 20 (0 ULg)
Full Text
Peer Reviewed
See detailEvolution de la texture d'un extrudat de boue au cours d'un séchage convectif
Léonard, Angélique ULg; Blacher, Silvia ULg; Crine, Michel ULg

in Compte rendu des 20èmes journées de l'AFSIA. Formulation - Mise en oeuvre - Séchage des solides fins (2002)

Detailed reference viewed: 24 (1 ULg)
Full Text
Peer Reviewed
See detailOn the construction of the inclusion boundary neighbourhood for markov equivalence classes of bayesian network structures
Auvray, Vincent; Wehenkel, Louis ULg

in Proceedings of Uncertainty in Artificial Intelligence (2002)

The problem of learning Markov equivalence classes of Bayesian network structures may be solved by searching for the maximum of a scoring metric in a space of these classes. This paper deals with the ... [more ▼]

The problem of learning Markov equivalence classes of Bayesian network structures may be solved by searching for the maximum of a scoring metric in a space of these classes. This paper deals with the definition and analysis of one such search space. We use a theoretically motivated neighbourhood, the inclusion boundary, and represent equivalence classes by essential graphs. We show that this search space is connected and that the score of the neighbours can be evaluated incrementally. We devise a practical way of building this neighbourhood for an essential graph that is purely graphical and does not explicitely refer to the underlying independences. We find that its size can be intractable, depending on the complexity of the essential graph of the equivalence class. The emphasis is put on the potential use of this space with greedy hillclimbing search. [less ▲]

Detailed reference viewed: 6 (1 ULg)
See detailHypercalcaemia of parathyroid carcinoma controlled by immunotherapy
Mead, G. P.; Harvey, T.; Epstein, M. et al

in The Endocrine Society's 84th Annual Meeting - Abstract book (2002)

Detailed reference viewed: 9 (0 ULg)
See detailSevere Growth hormone deficiency in non diabetic patients with corticotroph microadenomas : effects of pituitary surgery and implications for GH replacement
Valdes Socin, Hernan Gonzalo ULg; Laret, V.; de Fays, C. et al

in 10th Meeting of the European Neuroendocrine Association - Abstract book (2002)

Detailed reference viewed: 8 (0 ULg)
Full Text
See detailDesign of the Heliospheric Imager for the STEREO mission
Defise, Jean-Marc ULg; Halain, Jean-Philippe ULg; Mazy, Emmanuel ULg et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2001, December 01)

The Heliospheric Imager (HI) is part of the SECCHI suite of instruments on-board the two STEREO spacecrafts to be launched in 2005. The two HI instruments will provide stereographic image pairs of solar ... [more ▼]

The Heliospheric Imager (HI) is part of the SECCHI suite of instruments on-board the two STEREO spacecrafts to be launched in 2005. The two HI instruments will provide stereographic image pairs of solar coronal plasma and address the observational problem of very faint coronal mass ejections (CME) over a wide field of view (~90 degree(s)) ranging from 13 to 330 R[SUB]0[/SUB]. The key element of the instrument design is to reject the solar disk light, with straylight attenuation of the order of 10[SUP]-13[/SUP] to 10[SUP]-15[/SUP] in the camera systems. This attenuation is accomplished by a specific design of straylight baffling system, and two separate observing cameras with complimentary FOV's cover the wide FOV. A multi-vane diffractive system has been theoretically optimized to achieve the lower requirement (10[SUP]-13[/SUP] for HI-1) and is combined with a secondary baffling system to reach the 10[SUP]-15[/SUP] rejection performance in the second camera system (HI-2). This paper presents the design concept of the HI optics and baffles, and the preparation of verification tests that will demonstrate the instrument straylight performances. The baffle design has been optimized according to accommodation constrains on the spacecraft, and the optics were studied to provide adequate light gathering power and image quality. Straylight has been studied in the complete configuration, including the lens barrels and the focal plane assemblies. A specific testing facility is currently being studied to characterize the effective straylight rejection of the HI baffling. An overview of the developments for those tests is presented. [less ▲]

Detailed reference viewed: 28 (2 ULg)
See detailChandra/ACIS observation of NGC 346
Nazé, Yaël ULg; Stevens, I. R.; Hartwell, J. et al

in Bulletin of the American Astronomical Society (2001, December 01)

The cluster NGC346 is the largest star formation region in the SMC. It contains a large fraction of the early-type O stars of this galaxy. In the outskirts of this cluster lies HD 5980, a unique system of ... [more ▼]

The cluster NGC346 is the largest star formation region in the SMC. It contains a large fraction of the early-type O stars of this galaxy. In the outskirts of this cluster lies HD 5980, a unique system of massive stars of which one component underwent a LBV-type eruption in 1993. The XMEGA consortium has obtained one deep (100 ks) Chandra exposure of NGC 346. It shows ~70 point sources, of which only half possess an optical counterpart; strong emission from HD 5980; and diffuse emission associated with the cluster and SNR 0057-7226. [less ▲]

Detailed reference viewed: 19 (0 ULg)
Full Text
Peer Reviewed
See detailGlobal analysis of a continuous-time flow whith computes time-optimal switchings
Grognard, F.; Sepulchre, Rodolphe ULg

in Proceedings of the 40th IEEE Conference on Decision and Control (2001, December)

The minimum-time bounded control of linear systems is generically bang-bang and the number of switchings does not exceed the dimension of the system if the eigenvalues of the system matrix are real. This ... [more ▼]

The minimum-time bounded control of linear systems is generically bang-bang and the number of switchings does not exceed the dimension of the system if the eigenvalues of the system matrix are real. This paper proposes a synthesis method for such problems based on dynamical systems that "compute" the optimal sequence of switching times. [less ▲]

Detailed reference viewed: 8 (0 ULg)
See detailMulticriteria and multiactors interactive tool aiding to sketch the building envelope during the first stages of the architectural design, with objective of cost and energy performances
Hauglustaine, Jean-Marie ULg

in Performance of Exterior Envelopes of Whole Buildings VIII: Integration of Building Envelopes (2001, December)

The present study explores a Multiple Criteria Decision Aid (MCDA) procedure, an aid to help project authors optimise the building envelope during the sketch design, where a significant number of choices ... [more ▼]

The present study explores a Multiple Criteria Decision Aid (MCDA) procedure, an aid to help project authors optimise the building envelope during the sketch design, where a significant number of choices are fixed, having a determining impact on the future building cost and use. The objective of the design method is the respect of building costs – for the building construction and use – and the energy performance improvement. An interactive tool has been developed within multicriteria and multiactors context. In order to improve the architectural response to the client’s and regulation requirements, it gives decision-making aids to: - the project authors: in making up the project architectural forces, in accordance with the actors’ objectives; - the client: in reaching his objectives of costs, building duration, comfort and functionality, while serenely assuming his responsibilities related to his building energy and environment performances. The design tool is organised in two linked modules, any actor may go in any module in any time: - the first one manages parameters describing the project requirements; - the graphic module allows to draw the sketch; it calculates geometric parameter values that it puts back in the first module. Permanently informed on cost and energy performances, the user can any time search for optimal scenario giving best satisfaction or compromise: he has at his disposal at lot of graphs illustrating the performance sensitivity to parameter variation, as well as an optimisation procedure using a genetic algorithm to find the most efficient parameter set. The software is organised to manage new building projects of housings, schools and offices (small to medium size projects). [less ▲]

Detailed reference viewed: 60 (7 ULg)
See detailDe bijdrage van de organisatiesociologie tot het begrijpen van het functioneren van justitie
Schoenaers, Frédéric ULg

in toekomst van rechtssociologie in het justitiële beleid (2001, December)

Detailed reference viewed: 17 (0 ULg)
Full Text
Peer Reviewed
See detailImpact studies and water management with WolfHydro : a new physically based hydrological solver
Archambeau, Pierre ULg; Mouzelard, Thibaut; Erpicum, Sébastien ULg et al

in International Symposium on Environmental Hydraulics (2001, December)

Detailed reference viewed: 12 (0 ULg)
Full Text
See detailSynthesis of 2-Diethoxyphosphoryl-2-Methyl-5-Phenyl-3,4-Dihydro-2H-Pyrrole-1-Oxide (DEPMPO-Ph): a New Radical Spin-Trap
Olive, Gilles ULg; Le Moigne, François; Mercier, Anne et al

in Symposium Drug Discovery Strategies: from Leads to Drugs (2001, November 16)

The synthesis of a new radical spin trap is presented here: the 2-Diethoxyphosphoryl-2-Methyl-5-Phenyl-3,4-Dihydro-2H-Pyrrole-1-Oxide (DEPMPO-Ph)

Detailed reference viewed: 11 (2 ULg)
Peer Reviewed
See detailThe influence of gas depth on interfacial convection in a liquid gas bilayer.
Narayanan, Ranga; Theisen, Eric; Johnson, Duane et al

in Bulletin of the American Physical Society, Proceedings of the 54th Annual Meeting of the APS Division of Fluid Dynamics (2001, November 01)

We present a study of the influence of air height on the pattern formation at the onset of interfacial convection in a liquid -gas bilayer. Bilayer convection results from interaction of two immiscible ... [more ▼]

We present a study of the influence of air height on the pattern formation at the onset of interfacial convection in a liquid -gas bilayer. Bilayer convection results from interaction of two immiscible, superposed fluid layers and it is a transport problem that is affected by the ratios of various thermophysical properties and geometries. By using both calculations and experiments, a new convection-coupling mechanism is revealed. When the gas depth is low the convection is dominant in the liquid. It is of the Rayleigh Marangoni type and subcritical convection may be seen for axisymmetric patterns at the onset. For large gas heights the convection in the upper fluid layer simultaneously generates transverse thermal gradients along the fluid-fluid interface immediately causing surface tension gradient and buoyancy driven-convection in the lower fluid. The convection in the gas is of the Rayleigh type and the self-adjoint nature of the mathematical problem is depicted in the experiment wherein no subcritical motion occurs. In both the calculations and the experiment, silicone oil and air were used as the two fluids. As the viscosity of air is quite low compared to the silicone oil, convection in the air has no mechanical influence on the silicone oil and it is this property that is advantageous in isolating the new convection mechanism. The correspondence between theory and experiment is excellent. [less ▲]

Detailed reference viewed: 10 (0 ULg)
See detailH[SUB]2[/SUB] temperature and self-absorption: analysis of Jovian auroral spectra obtained with the FUSE satellite
Gustin, Jacques ULg; Feldman, P. D.; Gérard, Jean-Claude ULg et al

in Bulletin of the American Astronomical Society (2001, November 01)

High-resolution spectra of the Jovian aurora have been obtained with unprecedented spectral resolution in the 900-1190 Ì· window with the the Far Ultraviolet Spectroscopic Explorer (FUSE), using the 30 ... [more ▼]

High-resolution spectra of the Jovian aurora have been obtained with unprecedented spectral resolution in the 900-1190 Ì· window with the the Far Ultraviolet Spectroscopic Explorer (FUSE), using the 30"x30" LWRS aperture. All observed features belong to the H[SUB]2[/SUB] transitions from the B, C, B', D, B" and D' electronic states to the ground-state. These emissions are excited by inelastic collisions of the primary and secondary auroral electrons with H[SUB]2[/SUB] molecules. The relative intensity distribution of the observed lines depends on the rotational temperature of the emitting layer and self-absorption. Below 1100 Ì· , the transitions leading to the v" = 0, 1 and 2 levels of ground-state are partially or totally absorbed by H[SUB]2[/SUB], giving indications about the vibrational H[SUB]2[/SUB] distribution and overlying column. After a validation with an unabsorbed and a self-absorbed laboratory spectrum obtained in controlled conditions (100K, 300 eV), this study compares the observations and synthetic spectra, generated by a code including the B, C and B', D, B" and D' Rydberg states. The rotational and vibrational H[SUB]2[/SUB] temperatures are determined as well as the overlying H[SUB]2[/SUB] column. The combination of these parameters is used to determine the depth of the auroral energy deposition. This work is based on data obtained for the Guaranteed Time Team by the NASA-CNES-CSA FUSE mission operated by the Johns Hopkins University. French participants are supported by CNES. Financial support to U.S. participants has been provided by NASA contract NAS5-32985. [less ▲]

Detailed reference viewed: 35 (2 ULg)
Peer Reviewed
See detailPathologies surrénaliennes
Peeters, Dominique ULg; Remy, Isabelle ULg

in Proceedings du congrès CNVSPA-SAVAB (2001, November)

Detailed reference viewed: 26 (13 ULg)
Peer Reviewed
See detailAbdomen aigu: aspects chirurgicaux
Hamaide, Annick ULg

in Proceedings du congrès CNVSPA (2001, November)

Detailed reference viewed: 54 (5 ULg)
Full Text
Peer Reviewed
See detailBiosystems Engineering: Applying methods from systems theory to biological systems
Kremling, A.; Sauter, T.; Bullinger, Eric ULg et al

in Proc. of the 3rd International Conference on Systems Biology (2001, November)

Detailed reference viewed: 17 (1 ULg)
Full Text
See detailGravitational lensing studies with the 4-m International Liquid Mirror Telescope (ILMT) (poster contribution)
Jean, C.; Claeskens, Jean-François ULg; Surdej, Jean ULg

in Brainerd, T. G.; Kochanek, C. S. (Eds.) Proceedings of the Conference "Gravitational lensing: recent progress and future goals" (2001, October 01)

A 4-m International Liquid Mirror Telescope (ILMT) is being built in the north of Chile by an international consortium and will become operational in two years from now. We present here a short ... [more ▼]

A 4-m International Liquid Mirror Telescope (ILMT) is being built in the north of Chile by an international consortium and will become operational in two years from now. We present here a short description of the telescope as well as estimates of the microlensing, macrolensing and weak lensing effects expected from a deep, multicolor imaging survey made with such a telescope. [less ▲]

Detailed reference viewed: 18 (6 ULg)
Peer Reviewed
See detailCrestar® and PMSG don't affect systemic insulin-like growth factor-I but induce oestrus in postpartum suckling dromedary females.
Hammadi, M.; Khorchani, T.; Moslah, M. et al

in Proceedings of the 4th International Conference on Farm Animal Endocrinology (2001, October)

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
See detailRIA method for plasma insulin-like growth factor-binding protein-3 quantification in cattle at various physiological situations.
Renaville, Robert ULg; Parmentier, Isabelle; Fontaine, Sandrine et al

in Proceedings of the 4th International Conference on Farm Animal Endocrinology (2001, October)

Detailed reference viewed: 14 (0 ULg)
Peer Reviewed
See detailL'imaginaire de l'objet
Delville, Michel ULg

in Watthee-Delmotte, Myriam (Ed.) Texte, image, Imaginaire (2001, October)

Detailed reference viewed: 7 (0 ULg)
Peer Reviewed
See detailThe role of the somatotropic axis in the mammalian metabolism
Renaville, Robert ULg; Parmentier, Isabelle; Haezebroeck, Valérie et al

in Proceedings of the 4th International Conference on Farm Animal Endocrinology (2001, October)

Detailed reference viewed: 18 (1 ULg)
Full Text
Peer Reviewed
See detailSuivi du procédé de séchage thermique de boues d'épuration par microtomographie aux rayons X
Léonard, Angélique ULg; Blacher, Silvia ULg; Marchot, Pierre ULg et al

in Latifi, A.; Boudrant, J.; Tonde, J. (Eds.) Récents progrès en génie des procédés N°82 Vol.15 2001 : information, modélisation, simulation et optimisation (2001, October)

Detailed reference viewed: 59 (3 ULg)
Peer Reviewed
See detailQuantification of bST in milk by electrochemiluminescence: a way for detection of treated cows.
Renaville, Robert ULg; Deaver, D.; Baronheid, Christophe et al

in Proceedings of the 4th International Conference on Farm Animal Endocrinology (2001, October)

Detailed reference viewed: 20 (0 ULg)
Peer Reviewed
See detailBeta-agonist administration followed by dexamethasone treatment differently alters somatotropic and thyroid axis.
Renaville, Robert ULg; Parmentier, Isabelle; Haezebroeck, Valérie et al

in Proceedings of the 4th International Conference on Farm Animal Endocrinology (2001, October)

Detailed reference viewed: 43 (0 ULg)