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See detailSession hépatique : illustration par une revue de cas cliniques
Amory, Hélène ULg

in Proceedings of the Annual meeting of the French Equine Veterinary Association (AVEF) (2003)

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See detailVerbes centraux du dispositif des chartes médiévales : essai d'analyse
Boutier, Marie-Guy ULg

in Sánchez Miret, Fernando (Ed.) Actas del XXIII Congreso internacional de lingüística y filología románica (2003)

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See detailSWAP: Sun watcher using APS detector on-board PROBA-2, a new EUV off-axis telescope on a technology demonstration platform
Defise, Jean-Marc ULg; Berghmans, David; Hochedez, Jean-Francois E et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2003)

SWAP (Sun Watcher using Active Pixel System detector and Image Processing) is an instrument that has been selected to fly on the PROBA-II technology demonstration platform, a program of the European Space ... [more ▼]

SWAP (Sun Watcher using Active Pixel System detector and Image Processing) is an instrument that has been selected to fly on the PROBA-II technology demonstration platform, a program of the European Space Agency (ESA) to be launched in 2006. This paper presents the instrument concept and its scientific goals. SWAP uses an off-axis Ritchey Chretien telescope that will image the EUV solar corona at 19.5 nm on a specifically fabricated extreme ultraviolet (EUV) sensitivity enhanced CMOS APS detector. This type of detector has advantages that promise to be very profitable for solar EUV imaging. The SWAP design is built on a similar concept as the MAGRITTE instrument suite for the NASA Solar Dynamics Observatory (SDO) mission to be launched in 2007. The optics have been adapted to the detector size. The SWAP PROBA-2 program will be an opportunity to demonstrate and validate the optical concept of MAGRITTE, while it will also validate space remote sensing with APS detectors. On the science outcomes, SWAP will provide solar corona images in the Fe XII line on a baselined 1-min cadence. Observations with this specific wavelength allow detecting phenomena, such as solar flares or 'EIT-waves", associated with the early phase of coronal mass ejections. Image recognition software will be developed that automatically detects these phenomena and sends out space weather warnings. Different modules of this software will run both on the ground system as well as on the onboard computer of PROBA II. The SWAP data will complement the observations provided by SOHO-EIT, and STEREO-SECCHI. [less ▲]

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See detailUn « four-couvercle » d’origine italique à Reims (Marne, France)
Deru, Xavier ULg

in Kenrick, Philip (Ed.) Rei Cretariae Romanae Fautores Acta (2003)

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See detailValidating structural models in non-linear dynamics
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in 6ème congrès national de Mécanique Th. et App., Gent, 2003 (2003)

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See detailPurificazione delle proteine associate alla gestazione (PAG) nella bufala (Bubalus bubalis): risultati preliminari.
Barbato, O.; Melo de Sousa, Noelita ULg; Malfatti, A. et al

in Atti 2o Congresso Nazionale sull’Allevamento del Bufalo (2003)

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See detailA comparative analysis of non-fickean thermodiffusion by EIT and GENERIC
Lebon, Georgy ULg; Desaive, Thomas ULg; Colinet, P.

in 1st international exergy, energy and environment symposium (2003)

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

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

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

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

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See detailUsing artificial neural networks to estimate rotor angles and speeds from phasor measurements
Del Angel, Alberto; Glavic, Mevludin; Wehenkel, Louis ULg

(2003)

This paper deals with an improved use of phasor measurements. In particular, the paper focuses on the development of a technique for estimation of generator rotor angle and speed, based on phasor ... [more ▼]

This paper deals with an improved use of phasor measurements. In particular, the paper focuses on the development of a technique for estimation of generator rotor angle and speed, based on phasor measurement units, for transient stability assessment and control in real-time. Two multilayered feed-forward artificial neural networks are used for this purpose. One for the estimation of rotor angle and another for the estimation of rotor speed. The validation has been made by simulation in a power system because techniques for the direct measurement were not available. Results obtained with the help of a simple one machine to infinite bus system are presented and compared against those obtained using analytical formulas derived from the generator classical model. [less ▲]

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See detailOrion : de la météorologie à la mythologie
Renaud, Jean-Michel ULg

in Cusset, Christophe (Ed.) La météorologie dans l'Antiquité : entre science et croyance. Actes du Colloque International Interdisciplinaire de Toulouse. 2-3-4 mai 2002 (2003)

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See detailHyperthermie chez le cheval: Approche diagnostique clinique
Amory, Hélène ULg

in Proceedings of the Annual meeting of the French Equine Veterinary Association (AVEF) (2003)

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See detailProgesterone, cortisol and pregnancy-associated glycoprotein concentrations in three aborted cows
Alomar, M.; Sulon, J.; El Amiri, B. et al

in Proceedings of the 8e Journée de rencontre Bioforum (2003)

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See detailLe traitement et la gestion du cheval hépatique
Amory, Hélène ULg

in Proceedings of the Annual meeting of the French Equine Veterinary Association (AVEF) (2003)

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

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

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See detailThe Herschel-PACS Grating Drive and its controller
Renotte, Etienne ULg; Callut, Eric ULg; Guiot, Marc ULg et al

(2003)

The Photodetector Array Camera and Spectrometer (PACS), on board the Herschel Space Observatory, is designed for imaging and spectroscopy in the wavelength region between 60 and 210 gm. This paper reports ... [more ▼]

The Photodetector Array Camera and Spectrometer (PACS), on board the Herschel Space Observatory, is designed for imaging and spectroscopy in the wavelength region between 60 and 210 gm. This paper reports the design of the grating cryogenic mechanism of the PACS spectrometer and its remote controller (DEC/MEC) located on the outside of the Herschel cryostat. The PACS grating shall be capable of accurate positioning (4 arcsec) within a large angular stroke (40 arcdeg) in cryogenic environment (4.2 K). Technologies of actuators, position sensors, pivots, dry lubricants, servo-control and cryogenic test set-up are presented. At the other end of the Herschel 10-meter high-impedance cryogenic harness, the DEC/MEC consists of DSP processor-based electronics that control and synchronise the cold focal plane mechanisms and infrared detector arrays. The DEC/MEC operates an on board software running under a real-time operating system. Technologies involved in the control electronics are discussed and correlated to validation tests conducted with actual hardwares. [less ▲]

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

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

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See detailCandidate VLTI Configurations for the GENIE Nulling Experiment
Absil, Olivier ULg; Gondoin, P.; Erd, C. et al

in Deming, Drake; Seager, Sara (Eds.) Scientific Frontiers in Research on Extrasolar Planets (2003)

The European Space Agency (ESA) and the European Southern Observatory (ESO) initiate a definition study for a Ground-based European Nulling Interferometer Experiment (Darwin-GENIE). The experiment will ... [more ▼]

The European Space Agency (ESA) and the European Southern Observatory (ESO) initiate a definition study for a Ground-based European Nulling Interferometer Experiment (Darwin-GENIE). The experiment will use the Very Large Telescope Interferometer (VLTI) operating on Mount Paranal (Chile). The objective of GENIE is to gain experience in the manufacture and operation of a nulling interferometer using a design concept and technology representative of the ESA IRSI-Darwin space mission. GENIE will prepare the IRSI-Darwin science program through a systematic search for exozodiacal dust clouds around IRSI-Darwin candidate targets. GENIE also aims to perform IRSI-Darwin related science achievable from ground including the detection of low-mass companions (if possible, hot jupiters) around nearby stars. Among the variety of telescope sizes and positions on the VLTI site, candidate interferometric configurations have been identified for GENIE, taking into account the limitation imposed by the Earth's atmosphere. They include a Bracewell interferometer for exozodiacal clouds detection in the N band and a double Bracewell configuration with internal modulation for extrasolar jupiter detection in the L' band. The present paper presents the prospective performance of these configurations in light of current specifications of major VLTI subsystems. [less ▲]

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See detailEspace construit
Frankignoulle, Pierre ULg

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

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See detailConvection de Bénard-Marangoni en régime oscillant
Dondlinger, Mireille; Dauby, Pierre ULg

in Proceedings du 16ème Congrès français de mécanique, Nice, 1-5 septembre 2003 (2003)

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See detailRepresentation of the « watermanship » and self-perception of swimming level in elementary school children
Cloes, Marc ULg; Noël, Dominique; Michel, Vincent et al

in Sena Lino, L.; Trindade Ornelas, R.; Carreiro da Costa, F. (Eds.) et al Innovation and New Technologies in Physical Education, Sport, Research and/on Teacher and Coach Preparation (2003)

Swimming is one of the most common sports activities in Walloon region as in many countries (Bodson, 1997). According to Boullé (1999) swimming courses concern various sectors of practice: the awakening ... [more ▼]

Swimming is one of the most common sports activities in Walloon region as in many countries (Bodson, 1997). According to Boullé (1999) swimming courses concern various sectors of practice: the awakening (blooming of the person), the discovery (educational purposes), the improvement (to pass a test or to carry out a performance), the leisure and maintenance (relaxation or improvement of the form and health), the practice in natural environment. Additionally, swimming is a prerequisite to other sports and cultural activities. Considering its place in individual safety, education, health and leisure, its importance in child and youth development is unchallenged. [less ▲]

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See detailPour une histoire de l'affiche
Duchesne, Jean-Patrick ULg

in Actes du colloque Le conservateur et l'affiche (2003)

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See detailIdentification of elastoplastic model parameters in large deformation problems using gamma methods
Jeunechamps, Pierre-Paul ULg; Walmag, J.; Mathonet, V. et al

in Proceedings of the 5th World Congress on Structural and Multidisciplinary Optimization (2003)

This paper reports on preliminary results of parameter identification problems in finite element non-linear analyses such as metal forming simulations. Two approaches are compared. The first one is the ... [more ▼]

This paper reports on preliminary results of parameter identification problems in finite element non-linear analyses such as metal forming simulations. Two approaches are compared. The first one is the classic Levenberg-Marquardt algorithm. The second one is a trust-region algorithm based on a quadratic model. The two algorithms are compared on two cases, one of them being an actuel experiment. [less ▲]

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

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

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See detailL'histoire des religions et les représentations du temps. En guise de préambule
Pirenne-Delforge, Vinciane ULg

in Pirenne-Delforge, Vinciane; Tunca, Önhan (Eds.) Représentations du temps dans les religions. Actes du Colloque organisé par le Centre d'histoire des religions de l'Université de Liège (2003)

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See detailStability analysis of Bénard-Marangoni convection in the case of cooling from below
Dondlinger, Mireille; Dauby, Pierre ULg

in Proceedings du 6ème Congrès National de Mécanique théorique et appliquée (NCTAM-2003), Gent (Belgium), 26-27 may 2003 (2003)

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See detailPhysical processes study in the transition zone of the Northwest African upwelling: climatological data analysis
Elmoussaoui, Abdellali; Djenidi, Salim ULg; Kostianoy, Andrey

(2003)

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See detailComparaison of three supplements high in linseeds or linseed oil in dairy cows
Cabaraux, Jean-François ULg; Marche, C.; Hornick, Jean-Luc ULg et al

in Book of absracts of the 54th Annual Meeting of the European Association for Animal Production (2003)

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See detailThe Darwin-GENIE Experiment: An ESA-ESO Partnership
Gondoin, Ph; Absil, Olivier ULg; Erd, C. et al

in Sembach, K. R.; Blades, J. C.; Illingworth, G. D. (Eds.) et al Hubble's Science Legacy: Future Optical/Ultraviolet Astronomy from Space (2003)

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See detailThe eggshell approach for the computation of electromagnetic forces in 2D and 3D
Henrotte, François; Deliège, Geoffrey ULg; Hameyer, Kay

in Sixth International Symposium on Electric and Magnetic Fields, EMF 2003: Aachen, Germany, October 6-9, 2003 (2003)

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See detailKarsts en roches cristallines silicatées non carbonatées.. Cas dans les métagabbros : grotte de Guessédoundou, Niger occidental
Willems, Luc ULg; Pouclet, André; Vicat, Jean-Paul

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

Since the Seventies, a séries of phenomena developed in non carbonated silicated rocks question the traditional vision of karst. The term of karst is used in the meaning of "any feature of the classical ... [more ▼]

Since the Seventies, a séries of phenomena developed in non carbonated silicated rocks question the traditional vision of karst. The term of karst is used in the meaning of "any feature of the classical karst morphology (caves, sink-holes, lapiaz...) where dissolution plays the main genetic action and this in any kind of rocks". The cave of Guéssédoundou illustrâtes a karst in métagabbros. It opens at the top of a small hill, in a dépression twenty meters long and three to four meters deep. The walls of this dépression are subvertical and the bottom is partially occupied by angular pluridecimetric blocks. The cave is opened on several meters in the southern side of the dépression and is prolonged in the form of too narrow conduits to be explore. The bedrock is a metagabbro with fine grains, slightly weathered, crossed by decimetric quartzose veins. Gabbroïc texture is preserved, as well as part of magmatic plagioclases. The remainder is transformed into a mixture of white feldspar and clinozoisite. Pyroxene are pseudomorphosed in actinote and chlorite. The site dépression was created along a N 10° shear zone where rocks suffered important fracturation and fluid transfers, as shown by its silification and ferruginisation.. Moreover, a East-West schistosity, former to shearing, structures the gabbro. The présence of angular blocks of variable size and the absence of human activity trace on the site show that the dépression was formed naturally by collapse of the roof of a more vast cavity whose current cave would be the visible residual prolongation. The absence of flow traces and mechanical abrasion means that this cavity is due only to chemical érosion . At the cave entry and on the subvertical walls of the dépression were formed by alveoli a few centimètres to a few décimètres in diameter. Thèse alveoli of wall are known in other lithologies, in particular in limestones. The absence of salts within the rock draws aside a formation by sait weathering. The smooth aspect and non fractured walls of the cells cannot resuit from a corrosion to a fracturing node. The closed aspect of the dépression and the absence of flow trace eliminate the assumptions from formation by water swirls or eolisation. The genesis of the cave must be earlier to the installation of a weathering cover since the rock is little deteriorated and the alveoli are not developed on a quite particular level which would correspond to a précise pedogenic horizon. Only a generalized dissolution of the métagabbros, in relation to a slow solution circulation, being carried out with the favour of the fracturing plans of the shearing zone makes it possible to explain the formation of the alveoli. The inversion of relief results from a weaker érosion of the rocks made more résistant to this place by the quartz seam mainstay and by the ferruginisation along the shearing zone. In the other hand, the crushed rocks, become porous, drained the infiltrations of meteoric water, facilitating the dissolution processes. The study of the site of Guéssédoundou shows that karstic phenomena can also exist in silico-aluminous formations of crystalline rocks. [less ▲]

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

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

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See detailAccretion of Gas by Globular Cluster Stars
Thoul, Anne ULg; Jehin, Emmanuel ULg; Magain, Pierre ULg et al

in Piotto, G.; Meylan, M.; Djorgovski, G. (Eds.) et al New Horizons in Globular Cluster Astronomy (2003)

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See detailAuto-associantive neural networks, Part I: Replacement of missing sensor values,
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in 8th Internationale Conference on Recent Advances in Structural Dynamics, Southampton, 2003 (2003)

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

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

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

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

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See detailEtching techniques for the realization of optical micro-cavities on silicon for atoms traps
Moktadir, Z; Kukharenka, A; Kraft, Michael ULg et al

in Proc. Micromechanics Europe (MME) (2003)

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See detailAuto-associative neural networks, Part II: Feacture extraction for non-linear model updating
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in 8th Internationale Conference on Recent Advances in Structural Dynamics, Southampton, 2003 (2003)

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

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

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

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

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

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

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See detailUtilisation de boîtiers de vote électroniques lors de travaux pratiques et travaux dirigés de biologie (niveau 1ère candidature)
Noel-Lambot, F.; Detroz, Pascal ULg

in Les technologies de l'information et de la communication : mutations dans la formation scientifique universitaire : actes du colloque CIRUISEF-AUF, Dakar, mars 2003 (2003)

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See detailInvestigation of transverse cracks initiation in continuous steel casting using a finite element approach
Castagne, S.; Habraken, Anne ULg

in Advances in Computational & Experimental Engineering (2003)

A numerical model for steel at elevated temperature which is based on a mesoscopic finite element approach is presented. The objective of the research is the analysis of damage evolution in the material ... [more ▼]

A numerical model for steel at elevated temperature which is based on a mesoscopic finite element approach is presented. The objective of the research is the analysis of damage evolution in the material using information from the macroscopic and microscopic scales. As a final application our results are used to study the industrial process of continuous casting of low carbon steel. [less ▲]

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See detailValidation of ENVISAT-1 Level-2 Products Related to Lower Atmosphere O3 and NOy Chemistry by a FTIR Quasi-global Network
De Mazière, Martine; Coosemans, Thierry; Barret, Brice et al

in Proceedings of Envisat Validation Workshop, Frascati, Italy, December 9-13, 2002, ESA SP-531, 2003 (2003)

A coordinated action involving eleven stations of the ground -based Network for Detection of Stratospheric Change (NDSC) equipped with Fourier transform infrared (FTIR) instruments was conducted to ... [more ▼]

A coordinated action involving eleven stations of the ground -based Network for Detection of Stratospheric Change (NDSC) equipped with Fourier transform infrared (FTIR) instruments was conducted to contribute to the validation of the three atmospheric chemistry instruments onboard ENVISAT, that are MIPAS, SCIAMACHY and GOMOS. The target products for validation are total columns of O3, CH4, CO and some important NOy species (NO2, HNO3, NO) and the source gas N2O. Together the eleven stations cover the latitudes between 79 °N and 78°S, including polar, mid-latitude and subtropical and tropical locations. The goal is to contribute to the assessment of the data quality of the aforementioned ENVISAT instruments, from a quasi -global perspective. The period of intensive ground-based data collection for the benefit of the ENVISAT Validation Commissioning Phase that is dealt with in the present paper is July 15 to December 1, 2002. The FTIR network involved collected a data set corresponding to an equivalent of approximately 400 days of measurements; about three quarter of the data have already been submitted to the ENVISAT Calval database and are included in the present work. Unfortunately, the distribution of ENVISAT data has been slow and limited. Only a limited number of coincidences has been found for making data inter -comparisons. Therefore, the conclusions drawn in this paper are very preliminary and cover only a limited set of data products from SCIAMACHY only. Our findings up to now concerning the above mentioned target products are the following: (1) SCIAMACHY near infrared operational products (CO, CH4, N 2O) have no scientific meaning yet, (2), the operational SCIAMACHY total vertical O3 column product derived in the ultraviolet window has undergone some improvements with changing versions of the processor(s) but it still underestimates the column by about 5 – 10 %, (3), the operational SCIAMACHY total vertical O3 column product derived in the visible window is unrealistically large, and (4), the operational NO2 total column product from SCIAMACHY seems to largely overestimate the real column, but very few coincidences and large dispersions of the data do inhibit any further conclusion at present. In a next phase, the same ground-based correlative data set will be exploited to further validate the ENVISAT data as soon as more and reprocessed data will be distributed. [less ▲]

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See detailPlace de la thérapie active de reconditionnement à l’effort aérobie chez le patient fibromyalgique
Maquet, Didier ULg; Croisier, Jean-Louis ULg; Crielaard, Jean-Michel ULg

in Actes du Symposium « Kinésithérapie passive ou active » de la Fédération Nationale des Docteurs et Licenciés en Kinésithérapie (2003)

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See detailExperimental and numerical study on mechanoregulation of tissue differentiation around a loaded implant in a bone chamber
Van Oosterwyck; Geris, Liesbet ULg; Duyck, Joke et al

in Bischoff, G.; Hein, H.-J. (Eds.) Proceedings of the seventh conference of ESEM (2003)

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See detailGéographie et science de l’information géographique
Donnay, Jean-Paul ULg

in Quelle géographie enseigner demain à l’Université ? (2003)

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See detailStudy of the behaviour of welded joints between elliptical hollow sections
Pietrapertosa, C.; Jaspart, Jean-Pierre ULg

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

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

in meeting report (2003)

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See detailDeux approches contrastées our développer les compétences transversales dans les grands groupes universitaires
Leclercq, Dieudonné ULg; Marotte, Paul; Simon, Fabienne et al

in Beauchesne, André; Boutin, Noël; Mathieu, Sylvie (Eds.) et al Le congrès «L'Université au service de l'apprentissage : à quelles conditions?» (2003)

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See detailSurface Mapping of the he & SI Distribution of Four B Stars
Briquet, Maryline ULg; Luftinger, Teresa; Aerts, Conny et al

in Astrotomography, 25th meeting of the IAU, Joint Discussion 9, 17 July 2003, Sydney, Australia (2003)

In the framework of a long-term high-resolution spectroscopic monitoring campaign of slowly pulsating B stars we have discovered four spotted mid-B main-sequence stars exhibiting clear line-profile ... [more ▼]

In the framework of a long-term high-resolution spectroscopic monitoring campaign of slowly pulsating B stars we have discovered four spotted mid-B main-sequence stars exhibiting clear line-profile variability of selected He and Si lines. We derive the rotational period which is of the order of 1-2 days of these stars with a high precision. We perform surface mapping which allows us to derive the distribution of the helium and silicon on the stellar surface. We find evidence for the presence of large spots in all four stars. He overabundance is accompanied with Si underabundance or vice versa in the spots. Our data are usefull to test current diffusion theories which have been developed for spotted A-type stars. Our stars have effective temperatures around 17000K which makes them among the hottest known so far with such clear spotted patterns. It would be most valuable to have magnetic field measurements for the four stars in order to explain the surface element distribution. [less ▲]

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

(2003)

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

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

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See detailNumerical modelling of metal forming - current practice and advanced applications
Cescotto, Serge ULg; Duchene, Laurent ULg; Pascon, Frédéric ULg et al

in Iu, V. P.; Lamas, L. N.; Li, Y. P. (Eds.) et al Computational Methods in Engineering and Science, lu et al. (eds), Proceedings of the 9th International Conference of enhancement and Promotion of Computing Methods for Engineering and Science (2003)

This paper first summarizes the current possibilities and the perspectives of effective modeling of metal forming processes. Practical considerations on manpower requirement and data availability are ... [more ▼]

This paper first summarizes the current possibilities and the perspectives of effective modeling of metal forming processes. Practical considerations on manpower requirement and data availability are included in the discussion. Then, two examples of advanced applications are presented: the micro-macro approach for the modeling of sheet metal forming and the modeling of continuous casting. [less ▲]

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

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

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

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

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

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See detailUn « Front populaire » en Belgique ? L’inexportable exemple français
Lanneau, Catherine ULg

in Les courants politiques et la Résistance : continuités ou ruptures? (2003)

Detailed reference viewed: 137 (19 ULg)
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See detailL’espace, l’individu et la territorialisation
Gauthier, Jean-Marie ULg; Bonfils, Serge; Koskas, Alain et al

in Gorot, Jacques; Bucalo-Triglia, Adèle (Eds.) L’espace de la relation : le réel et l’imaginaire (2003)

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See detailA probabilistic approach to power system network planning under uncertainties
Vassena, Stefano; Mack, Philippe; Druet, Christophe et al

in Proceedings of the IEEE Bologna Power Tech Conference (2003)

This work proposes a methodology and a practical tool for the study of long-term network planning under uncertainties. In this approach the major external uncertainties during the planning horizon are ... [more ▼]

This work proposes a methodology and a practical tool for the study of long-term network planning under uncertainties. In this approach the major external uncertainties during the planning horizon are modeled as macroscenarios at different future time instants. On the other hand, the random nature of actual operating conditions is taken into account by using a probabilistic model of microscenarios based on past statistics. Massive Monte-Carlo simulations are used to generate and simulate a large number of scenarios and store the detailed results in a relational database. Data mining techniques are then applied to extract information from the database so as to rank scenarios and network reinforcements according to different criteria. [less ▲]

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

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

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See detailEtude des impacts hydrauliques, sédimentologiques et écologiques liés aux travaux hydrauliques sur la Semois
Gob, Frédéric ULg; Houbrechts, Geoffrey ULg; Mols, Julien et al

in Schmitz, Serge (Ed.) Les Journées des Géographes Belges: Evaluer la capacité du milieu (2003)

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See detailL'Europe gravettienne
Otte, Marcel ULg; Noiret, Pierre ULg

in Desbrosse, René; Thévenin, André (Eds.) Préhistoire de l'Europe. Des origines à l'âge du Bronze (2003)

The Gravettian tradition appears to develop from local Mousterian and different cultures at the beginning of the European Upper Palaeolithic (Chatelperronian in the west, foliate points in the north and ... [more ▼]

The Gravettian tradition appears to develop from local Mousterian and different cultures at the beginning of the European Upper Palaeolithic (Chatelperronian in the west, foliate points in the north and the Streletskaian in the east). New technological characteristics proper to the Gravettian developed in different regions of middle Europe, apparently around the same time: thin, standardised blades, development of small backed armatures. The Gravettian is thus a pan-European phenomenon, extending across middle Europe, but developing locally. Development within the Gravettian is quite complex, with regional areas of expansion of processes varying according to the phase or facies considered. The Moldavian sequence is key to understanding the regional development of the Gravettian. It can be integrated with that of central and eastern Europe. General developmental tendencies appeared here, connecting regional patterns with traditional roots. The Gravettian culture can thus be considered a collection of technological processes probably adopted by diverse ethnic groups which nevertheless were in regular contact. During the Second Pleniglacial, important climatic changes provoked a division between central and western groups, leading to profound differences between south-eastern Europe (Ukraine, the Carpathian region, the Balkans) and western Europe (Solutrean-Magdalenian succession). [less ▲]

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See detailTreating non proportional damping by means of Taylor polynomial approximations
Denoël, Vincent ULg

in Proceedings of the 2003 Extreme Loading Conference (2003)

In order to simplify the resolution of the equation of motion, structural damping is generally supposed to be proportional. Indeed, this coarse and unjustified hypothesis leads to uncoupled equations of ... [more ▼]

In order to simplify the resolution of the equation of motion, structural damping is generally supposed to be proportional. Indeed, this coarse and unjustified hypothesis leads to uncoupled equations of motion in the modal basis. The aerodynamic and concentrated dampings (dash-pots) are accurately characterized by mathematical laws. These are such that the equations of motion are no longer uncoupled in the modal basis. After presenting the usual ways to solve coupled system of equations, the paper focuses on a method based on Taylor series expansions which allows to partially account for the coupling. After developing the equations related to this method, some examples of application are provided. [less ▲]

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

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

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

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

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See detailLa qualité différenciée
Burny, Philippe ULg

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

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See detail2D1/2 thermo-mechanical model of continuous casting using FEM
Pascon, Frédéric ULg; Habraken, Anne ULg

in Brucato, V. (Ed.) Proceedings of the 6th International ESAFORM Conference on Material Forming (2003)

Two complementary approaches of steel continuous casting modelling using the finite element code LAGAMINE have been developed in the M&S Department. The first one (at a macroscopic scale) describes the ... [more ▼]

Two complementary approaches of steel continuous casting modelling using the finite element code LAGAMINE have been developed in the M&S Department. The first one (at a macroscopic scale) describes the whole continuous casting process, from the free surface in the mould and through the entire machine, including thermal and mechanical behaviour of the steel. The second approach focuses on the prediction of cracks and is developed at grain scale. We present in this paper a description of the context in which the study started, the description of the macroscopic approach and some results. [less ▲]

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

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

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

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

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

in Proceedings IVRA (2003)

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

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

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

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

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See detailUnequal Lovers at the laboratory. Non-destructive analyses of a sixteenth century Netherlandish painting
Oger, Cécile ULg; Allart, Dominique ULg; Fraiture, Pascale et al

in Townsend, Joyce; Eremin, Katherine; Adriaens, Annemie (Eds.) Conservation Science 2002. Papers from the Conference held in Edinburgh, Scotland 22-24 May 2002 (2003)

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

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

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

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

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

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

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See detailLes propositions émises dans le passé en vue de modifier l'article 195 de la Constitution belge
Behrendt, Christian ULg

in Delpérée, Francis (Ed.) La procédure de révision de la Constitution (2003)

The articles provides for an overview of the several proposals which were made in the past in to alter the current procedure for amending the Belgian Constitution (procedure which is laid down in article ... [more ▼]

The articles provides for an overview of the several proposals which were made in the past in to alter the current procedure for amending the Belgian Constitution (procedure which is laid down in article 195 Belg. Const.). [less ▲]

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See detailAdhesion of Self-Compacting Concrete on Old Concrete Structures
Courard, Luc ULg; Darimont, Anne ULg; Degeimbre, Robert ULg et al

in Seidler, Peter (Ed.) Industrial Floors 03 (2003)

The repair of concrete deck slabs or balcony needs a special composition of concrete, and self-Compacting Concrete (SCC) is advantageously used for such repair operation. The rheology of the material is ... [more ▼]

The repair of concrete deck slabs or balcony needs a special composition of concrete, and self-Compacting Concrete (SCC) is advantageously used for such repair operation. The rheology of the material is of prime importance and needs to be adapted to ensure the penetration of SCC beneath the concrete plate structure as well as the adhesion to the old concrete substrate. Several materials have been used and characterised by means of a physical, chemical and mechanical test program. A test procedure is proposed to assess the efficiency and quality of the repair technique and material. Analysis of the interface between concrete substrate and SCC is given on the basis of a pull-off test and microscopical observations. [less ▲]

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See detailInfluence du contenu et des modalités d'évaluation sur les indicateurs d'équité
Lafontaine, Dominique ULg; Monseur, Christian ULg

in Actes du 16e colloque international de l'Admée-Europe, Liège, 4-6 septembre 2003 (2003)

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See detailStudy and comparison of multibeam photorefractive recordings and photorefractive crystals stack to holographic interferometry
Thizy, Cédric ULg; Georges, Marc ULg; Scauflaire, V. et al

in Delaye, Ph; Denz, C.; Mager, L. (Eds.) Photorefractive Effects, Materials, and Devices (2003)

Two techniques with the common objective to integrate multiple view holographic interferometry in one optical head are presented: multi recordings in a photorefractive BSO crystal and the use of a series ... [more ▼]

Two techniques with the common objective to integrate multiple view holographic interferometry in one optical head are presented: multi recordings in a photorefractive BSO crystal and the use of a series of BSO crystals as the recording medium. After a description of the principles we will show their application to holographic interferometry. The results will be presented and a comparison of the two methods, based on the quality of the interferograms, will be performed, showing the respective advantages and limitations of each technique compared to the other and to classical experiment of holographic interferometry. Up to four holograms have been recorded in one crystal, or two holograms in two crystals, corresponding to the four positions of illumination of the object [less ▲]

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

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

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See detailFattening of young bulls: comparaison of three breeds and two managements
Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg; Istasse, Louis ULg et al

in Book of absracts of the 54th Annual Meeting of the European Association for Animal Production (2003)

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

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

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See detailHeat transfer by radiation in internal cavities with a complex shape
Franssen, Jean-Marc ULg

in Proceedings of the SEISFPE Conference on Designing structures for fire (2003)

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See detailLe système accentuel de l'interlangue d'apprenants francophones du néerlandais
Rasier, Laurent ULg

in Mettouchi, A.; Ferré, G. (Eds.) Actes du colloque international "Interfaces prosodiques" (2003)

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

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

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

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

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See detailLong-term effect on plasma, meat and milk selenium and blood glutathion peroxydase of feeding selenium-enriched barley and haylage to Belgian Blue cows, calves and fattened bulls
de Behr, V.; Marche, C.; Coenen, M. et al

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

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See detailEpreuves externes : évaluation de la qualité des apprentissages ou des curricula ?
Lafontaine, Dominique ULg

in Actes du 15e colloque international de l'ADMEE-Europe et congrès annuel de la SSRE, Université de Lausanne, 5-7 septembre 2002 (2003)

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

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

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See detailLe défi de la santé publique au Rwanda et en République démocratique du Congo.
Porignon, Denis ULg

in Porignon, Denis; et al (Eds.) L’art de la paix : approche transdisciplinaire (2003)

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

in Espace judiciaire et social européen (2003)

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

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

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

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

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

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

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

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

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See detailFinite element analysis of continuous steel casting
Castagne, S.; Pascon, Frédéric ULg; Miesse, G. et al

in Proceedings of the First International Conference Finite element for process analysis (2003)

In order to analyse the behaviour of steel during continuous casting and to improve the process, two complementary models of steel continuous casting using the finite element code LAGAMINE have been ... [more ▼]

In order to analyse the behaviour of steel during continuous casting and to improve the process, two complementary models of steel continuous casting using the finite element code LAGAMINE have been developed. We propose here a description of both macroscopic and mesoscopic approaches. The first one describes the whole continuous casting process, from the free surface in the mould and through the entire machine, including thermal and mechanical behaviour of the steel. The second approach focuses on the prediction of cracks and is developed at the grain scale. Results concerning the optimisation of the mould taper and the analysis of transverse cracks initiation are presented as industrial applications. [less ▲]

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

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

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

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

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See detailA new version of the moment method, optimized for mode identification in multiperiodic stars
Briquet, Maryline ULg; Aerts, C.

in Interplay of periodic, cyclic and stochastic variability in selected areas of the H-R diagram: proceedings of a workshop held in Brussels, Belgium, 22-24 July 2002 (2003)

We present a numerical version of the moment method for the identification of non-radial pulsation modes. The new version requires less computation time than the previous one, allowing to consider all the ... [more ▼]

We present a numerical version of the moment method for the identification of non-radial pulsation modes. The new version requires less computation time than the previous one, allowing to consider all the information contained in the first three moments of a multiperiodic star and to identify multiple modes simultaneously. This, together with the use of a new discriminant which considers the moments calculated at each time of observation, increases the feasibility and the accuracy of the mode identification for multiperiodic stars. Moreover, the technique is extended to rotating pulsating stars. We apply the new version to three B stars showing multiperiodicity. [less ▲]

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

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

Detailed reference viewed: 7 (0 ULg)