References of "Paper published in a book"
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See detailCharacterisation of a novel topical nanoemulsion vehicle with spreading properties
Roland, Isabelle ULg; Gillard, Patricia ULg; Delattre, Luc ULg et al

in Proceedings of Eur conference on drug delivery and pharmaceutical technology (2004)

Detailed reference viewed: 30 (1 ULg)
See detailRecherches en technologies de l'éducation
Denis, Brigitte ULg

in 2e rencontre des chercheurs en éducation (ABCéduc) (2004)

Detailed reference viewed: 17 (2 ULg)
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See detailAnalyse explicative des influences observables de la reconnaissance et de la validation des compétences : le cas du PMTIC.
Pierrard, Jean-François; Brundseaux, Marie-France ULg; Georges, François ULg et al

in L'évaluation des compétences: entre reconnaissance et validation des acquis de l'expérience (2004)

L’article présente une réflexion théorique argumentée sur le manque de justifications empiriquement fondées de la mise en place de la reconnaissance et de la Validation des Acquis de l’Expérience et sur ... [more ▼]

L’article présente une réflexion théorique argumentée sur le manque de justifications empiriquement fondées de la mise en place de la reconnaissance et de la Validation des Acquis de l’Expérience et sur les effets observables que celle-ci est censée avoir sur tous ceux et toutes celles qui en bénéficient. Pour étoffer la réflexion théorique, l’article présente, en outre, les résultats provisoires d’une étude de terrain réalisée, en Belgique francophone, sur les acteurs du Plan Mobilisateur aux Technologies de l’Information et de la Communication (PMTIC) ; acteurs qui reçoivent, chacun à leur échelon, la reconnaissance et la validation de leurs compétences par l’acteur de l’échelon supérieur. [less ▲]

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See detailFacies and environments of the Middle Frasnian platform in Belgium
Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg

in Abstract book - 23th IAS meeting, Coimbra, Portugal (2004)

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See detailLa philosophie de la réparation et le système pénal", Actes du Forum « La justice réparatrice à l’épreuve du carcéral
Dubois, Christophe ULg

in Actes du colloque "La justice réparatrice à l'épreuve du carcéral" (2004)

Detailed reference viewed: 41 (3 ULg)
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See detailAn immunohistochemical study of eosinophilic bronchopneumopathy in dogs.
Peeters, Dominique ULg; Day, M. J.; Clercx, Cécile ULg

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

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See detailControl of listeria monocytogenes in dairy farms
Belleflamme, Christel ULg; Di Tanna, Sybille ULg; Anceau, Christine ULg et al

in Proceedings of the Ninth Conference on Food Microbiology (2004)

- Performed in Walloon farms in contact with the PDR project - L. monocytogenes characterised by its ubiquity - Numerous sources of contaminations : environment, cross-contaminations, post-contaminations ... [more ▼]

- Performed in Walloon farms in contact with the PDR project - L. monocytogenes characterised by its ubiquity - Numerous sources of contaminations : environment, cross-contaminations, post-contaminations, mastitis,… [less ▲]

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See detailRecent state of the Aral sea from regular satellite observations. 35th COSPAR Scientific Assembly
Stanichny, Sergey ULg; Davidov, A.; Djenidi, Salim ULg et al

in 35th COSPAR Scientific Assembly (2004)

The Aral Sea disaster is one of the most significant examples of ecological catastrophe caused by mismanagement of water resources. Aral sea level dropped on 22 meters for the last 35 years. The sea ... [more ▼]

The Aral Sea disaster is one of the most significant examples of ecological catastrophe caused by mismanagement of water resources. Aral sea level dropped on 22 meters for the last 35 years. The sea separated in to two independent parts , the Large Sea(Southern) and the Small Sea (Northern), loosing more than 90% of its original water masses. After the collapse of the former Soviet Union, satellite retrieved data became the main source of information on this perishing system. Regular observations from AVHRR, SeaWiFS, MODIS and ASTER satellite sensors were used for our investigations. Sea surface temperature (SST) data of the AVHRR sensor and digital bottom map topography were used for sea level drop calculations. The Sea level defined as the digital map isobate corresponds quite well to the satellite derived coastline for the Eastern part of the Large Sea with a bottom slope of ˜ 0.00015. For the period 1989-2002 the sea level of the Large Sea dropped on 9.2 meters. However in 2003 the sea level remained stable. This stabilisation was due to an increase of water output of the rivers Amu--Darya and Syr-Darya in 2003. High resolution ASTER data showed that the main amount of Syr-Darya waters is discharged into the Large Sea. The dried bottom area now covers more than 45000 km2. On the base of AVHRR-SST data the temperature regime for different parts of the Aral Sea was calculated for the years 2002-2003. The annual amplitude of the SST variation reaches 37° C for the open waters. The observed minimum freezing point was -7° C due to very high salinity. Estimations from satellite retrieved freezing points show an increase of salinity up to 10% in the Eastern part of the Large Sea. It is almost paradox that on satellite images the ice appears warmer than the water. Strong variations of the water temperature (up to 5° C) within a few days could be observed from April to August and could be related to wind induced mixing. SeaWiFS ocean colour data were used for the investigation of the optical properties of the water in different parts of the Aral Sea for the years 2002-2003. A significant relation of optical properties with wind and temperature was obtained. Strong changes of the thermal regimes of the Sea can cause variations in local climatic conditions: The analysis of AVHRR NDVI - data for the surrounding areas demonstrated a shift in the annual vegetation cycle. In addition phenomena like: salt storms, wind driven tides, sources of groundwater, eddies and frontal structures as well as ice coverage of the Aral Sea were demonstrated on satellite images. [less ▲]

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See detailGeneration of digital surface models and orthophotos of urban areas with IKONOS stereopairs
Devriendt, Dennis; Goossens, Rudi; Binard, Marc ULg

(2004)

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of ... [more ▼]

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of value-added products that fulfill some of the actual information needs, as expressed by Belgian authorities at the local and at the regional level. One of the technical research modules is focussing on the geometrical aspects of VHR data processing. Due to the capability of the IKONOS sensor up to an angle of 26° off-nadir, the satellite can take stereo image pairs. An IKONOS stereo pair consists of two images of the same location taken from two different perspectives on the same orbital pass. Although it is possible to obtain a stereopair from two images from different orbital passes and with a large time interval, it is proved that the stereopairs ordered from Spaceimaging or resellers gives better results (2004, Taillieu et al.). This paper describes the method applied for DSM generation from an IKONOS stereopair, over an urban area. The geometrical accuracy of the DSM is compared with the accuracy of a DSM, derived from aerial photography at scales of 1:12000 and 1:4000. The satellite-derived DSM is used for ortho-rectification of VHR imagery. The accuracy of the ortho-rectified images is compared with ortho-rectifications of the same images, based on the aerial photo DSM. [less ▲]

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See detailRenormalization in effective theories: Prescriptions for kaon-nucleon resonance parameters
Semenov-Tyan-Shanskiy, Kirill ULg

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

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See detailGaseous emissions in the raising of weaned pigs on fully slatted floor or on straw-bases deep litter
Nicks, Baudouin ULg; Laitat, Martine ULg; Farnir, Frédéric ULg et al

in Clement, G.; Madec, F. (Eds.) Proceedings of the in- between congress of the International Society for Animal Hygiene (2004)

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See detailCaractérisation pédologique des berges sensibles: problématique de l'accès du bétail aux cours d'eau
Leboeuf, Dimitri; Marcoen, Jean Marie ULg; Bock, Laurent ULg

in Monitoring et gestion physique des cours d'eau wallons. (2004)

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See detailThe nitrogen isotope ratio in a few Oort Cloud comets
Jehin, Emmanuel ULg; Arpigny, Claude ULg; Manfroid, Jean ULg et al

in 35th COSPAR Scientific Assembly (2004)

In the past few years, high-resolution (R ˜ 70,000) and high quality spectra of the CN B^2Sigma^+ - X^2Sigma^+ (0,0) band (at 388 nm) of several Oort Could comets have been collected by our team in ... [more ▼]

In the past few years, high-resolution (R ˜ 70,000) and high quality spectra of the CN B^2Sigma^+ - X^2Sigma^+ (0,0) band (at 388 nm) of several Oort Could comets have been collected by our team in different observatories and have allowed the first optical detections of [SUP]12[/SUP]C[SUP]15[/SUP]N. Observations with first class spectrographs on large 8m telescopes, such as UVES at the ESO VLT, have shown that such very efficient equipment are able to provide isotopic ratios for comets as faint as m_r ˜ 9 (heliocentric magnitude), opening up the possibility of carrying out a systematic analysis over a significant sample of comets. While the measured [SUP]12[/SUP]C/[SUP]13[/SUP]C isotope ratios in the different comets are in good agreement with the Solar system value (89), the derived [SUP]14[/SUP]N/[SUP]15[/SUP]N ratios are only about half the value in Earth's atmosphere (272), indicating an excess of [SUP]15[/SUP]N by a factor of about 2 with respect to the "cosmic" value. It is striking to note that the optical determinations of [SUP]14[/SUP]N/[SUP]15[/SUP]N in the different comets are consistent with each other (140 � 30), but not with the ratios derived for comet Hale-Bopp from sub-millimeter measurements on HCN, generally believed to be the main parent of CN. This discrepancy could indicate the existence of (an) other unknown parent(s) of CN, with an even higher [SUP]15[/SUP]N excess. Organic compounds like those found in interplanetary dust particles (IDPs) are good candidates. Further determinations from HCN are now badly needed in other comets. Obtaining the value of the N isotopic ratio in Jupiter-family short-period comets would be of great significance in view of their presumed different place of birth. Much is also expected in this respect, as in many others, from several space missions such as Deep Impact, Stardust, and Rosetta. [less ▲]

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See detailDrying up of a natural spring for ensuring stability of an artificial slope: is it sustainable development ?
Dachy, Marie; Sage, Sandrine; Dassargues, Alain ULg

in Hack, R.; Azzam, R.; Charlier, Robert (Eds.) Engineering geology for infrastructure planning in Europe (2004)

Near a small city of the Belgian ‘Ardennes’ (East of Belgium), modification of a natural slope for extension of industrial activities has required an extensive drainage in a weathered zone composed of ... [more ▼]

Near a small city of the Belgian ‘Ardennes’ (East of Belgium), modification of a natural slope for extension of industrial activities has required an extensive drainage in a weathered zone composed of colluvium and weathered claystones and quartzites. After a few days, the drain at the foot of the artificial slope was producing about 1000 m3/day while a natural spring located at a 200 m distance on the hillside was completely dried up. This spring was used for drinking water by the local community. A shallow geophysical prospection by refraction seismics and 2D geoelectrical tomography, associated to geological, morphostructural and hydrogeological observations have lead to a clear understanding of (1) the spring occurrence; (2) the feeding conditions of the spring and consequently (3) the ‘lateral’ hydraulic impact of the drain. In the hill, the bedrock is changing from quartzites (uphill) to claystones (downhill) inducing changes in hydraulic conductivity and thickness of the overlying weathered zone. On the basis of these hydrogeological conditions, associated to the specific topographic conditions, different possible remediation schemas have been proposed to the decision makers. Unfortunately, the full restoration of the natural spring appears to be one of the most technically and financially difficult option …while it is surely the most suitable in the name of a sustainable development. [less ▲]

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See detailMyeloperoxydase concentration in bronchoalveolar lavage from healthy and heavy horses
Art, Tatiana ULg; Desmet, Christophe ULg; Lekeux, Pierre ULg et al

in Proceedings : 22nd Symposium of the Veterinary and Comparative Respiratory Society (2004)

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See detailComputation of the Malpasset dam break with a 2D conservative flow solver on a multiblock structured grid
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

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

In the global framework of safety, the study of the hydraulic consequences of a dam breaking, sudden and instantaneous for concrete structures, gradual for earth ones, is of major interest in the scope of ... [more ▼]

In the global framework of safety, the study of the hydraulic consequences of a dam breaking, sudden and instantaneous for concrete structures, gradual for earth ones, is of major interest in the scope of prevention policies or protection plans for populations and goods. Suitable numerical models, coupled with contemporary computational possibilities, allow engineers to forecast these complex situations with a great reliability. In this field, WOLF 2D is an efficient analysis and optimisation tool, which has been completely developed by the Applied Hydrodynamics and Hydraulic Constructions team (HACH – http://www.ulg.ac.be/hach) of the University of Liege. It is part of WOLF free surface flows computation package, which includes in the same development environment the resolutions of the 1D Saint-Venant equations, the 2D shallow-water equations as well as a physically based hydrological model and powerful optimisation capabilities based on Genetic Algorithms. The interactive and unique user-interface, with high performance pre- and post-processing, allows monitoring 3-D large-scale runs graphically while they proceed, as well as generation of 3D videos. Each code handles general multiblock meshes, dealing with natural topography and mobile bed simultaneously, for any unsteady situation with mixed regimes and moving hydraulic jumps. By this way, WOLF deals with all free surface hydraulic phenomena, from hydrological runoff and river propagation to extreme erosive flows on realistic mobile topography, such as gradual dam breaching processes. It has moreover proved its efficiency and reliability for years by numerous real applications. The first part of this paper covers a brief description of the 2D multiblock flow solver WOLF 2D and the underlying mathematical model. The second part depicts the application of WOLF computation capabilities to the well-known Malpasset dam break (France, 1959), which induced a catastrophic almost instantaneous release of 48 millions m³ of water in the Reyran river valley down to the town of Frejus and the Mediterranean sea. Data available thanks to the CADAM EU-project are used to assess the results. [less ▲]

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See detailDes socles de compétences à la mise en place d'une démarche expérimentale à l'école primaire : intervention en formation initiale des enseignants
Hindryckx, Marie-Noëlle ULg; Stegen, Pierre; Graftiau, Marie-Christine et al

in Herphelin, Martine (Ed.) Actes du troisième congrès des chercheurs en éducation : (re)trouver le plaisir d'enseigner et d 'apprendre; construire savoirs et compétences (2004)

Dans le cadre de ce projet de recherche-action, une collaboration étroite entre deux services universitaires de Liège (Service de Didactique générale , faculté de Psychopédagogie et service de Chimie ... [more ▼]

Dans le cadre de ce projet de recherche-action, une collaboration étroite entre deux services universitaires de Liège (Service de Didactique générale , faculté de Psychopédagogie et service de Chimie organique - faculté des Sciences) et la Haute École Charlemagne (Liège et Huy) s’est mise en place pendant trois ans. La question centrale qui a guidé le travail durant ces trois années est : « Comment incorporer, dans le curriculum de formation des futurs instituteurs, des mises en situation favorisant le développement de leur capacité à construire des activités d’apprentissages faisant intervenir des démarches expérimentales telles que présentées dans le document « Socles de compétences » ? ». L’objet de la collaboration entre les différents partenaires concernés a été la construction d’un outil de formation prenant place dans les ateliers de formation professionnelle (AFP) des futurs enseignants. Cet outil de formation a pris la forme d’un module qui s’est articulé sur une démarche en trois temps : • Faire vivre aux futurs enseignants une démarche de recherche expérimentale concrète, au départ d’une énigme scientifique à leur niveau ; • Prendre du recul face au vécu pour faire identifier par les stagiaires les fondements didactiques de la démarche de formation et prolonger cette réflexion métacognitive par des moments de théorisation sur les contenus visés ; • Construire ensemble des séquences de leçons mettant en place une démarche expérimentale et les tester dans des classes du primaire Ce dispositif a été testé à cinq reprises, dans des situations différentes, à la Haute École Charlemagne dans les implantations de Liège et de Huy. Un document en cinq volumes constitue le rapport final qui clôture les trois années de recherche pour l’AGERS. Il est construit comme un outil destiné aux enseignants des Hautes Ecoles (psychopédagogues et/ou professeur de sciences) ainsi qu’aux maîtres de formation pratique. [less ▲]

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See detailWhich metrics to assess and compare the quality of image fusion products ?
Cornet, Yves ULg; Binard, Marc ULg

in New Strategies for European Remote Sensing (2004)

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

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

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See detailThe mechanobiology of tissue differentiation around immediately loaded implants: a bone chamber experiment
Geris, Liesbet ULg; Van Oosterwyck, Hans; Duyck, Joke et al

in Proceedings of the 14th conference of the European Society of Biomechanics (2004)

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See detailA multi-Agent System for Architectural Sketches Interpretation
Juchmes, Roland ULg; Leclercq, Pierre ULg; Azar, Sleiman

in Hugues, John F.; Jorge, Joaquim A. (Eds.) Eurographics Workshop on Sketch-Based Interfaces and Modeling (2004)

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See detailArticuler présence et distance pour former aux technologies de l'éducation et de la formation. Communication présentée au Colloque TICE Méditérannée, Nice
Denis, Brigitte ULg; Vandeput, Etienne ULg

in Actes du Colloque TICE Méditerranée : « L'humain dans l'enseignement en ligne » (2004)

For five years, a postgraduate program in Educational and Training Technology has been developed by both Universities of Liège and Namur (Belgium). This program addresses already graduated adults having a ... [more ▼]

For five years, a postgraduate program in Educational and Training Technology has been developed by both Universities of Liège and Namur (Belgium). This program addresses already graduated adults having a training background. Depending on his/her training experience and a personnal project, the participant has the opportunity of developing different competencies profiles like: educational designer, designer and manager of training systems integrating ICT, e-tutor or trainer in e-learning environments, designer and producer of information or learning multimedia products. The plan of action articulates face-to-face and distance activities. It is based on several principles like definition and follow-up of a personal learning project, clarification of the actors’ roles, systematical use of technologies, active pedagogical methods and quality process. The authors present a series of scenarios including several types of distance activities. On the one hand, they illustrate these activities, insisting on their target goals, their meaning and usefulness, their development and their evaluation criteria. On the other hand, they discuss the organization of face-toface, blended or distance activities taking into account different sides of a learning system in order to stimulate the thought of designers and animators of such learning environments. [less ▲]

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See detailBehavioural impact of food presentation: How to find an ideal number od weaned pigs per feeding place?
Laitat, Martine ULg; Vandenheede, Marc ULg; Desiron, Alain et al

in Kirkwood, J. K.; Roberts, E. A.; Vickery, S. (Eds.) Proceedings of the Universities Federation for Animal Welfare (2004)

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See detailQuelle(s) conception(s) de la motivation dans le sillage du décret Missions ? Le cas des programmes de français
Dufays, Jean-Louis; Lucchini, Silvia ULg

in Actes du 3ème Congrès des chercheurs en éducation. (Re)trouver le plaisir d’enseigner et d’apprendre – Construire savoirs et compétences (2004)

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See detailLingopti project: semi-continuous casting process of copper-nickel alloys
Pecquet, Etienne ULg; Volles, Ralf; Lecomte-Beckers, Jacqueline ULg et al

in Proceedings of the 21st International Congress of Theoritical and Applied Mechanics (2004)

The following text deals with casting of copper-nickel alloys. They are high added values materials. The research contains two main parts. Laboratory tests (completed with bibliography) that provide ... [more ▼]

The following text deals with casting of copper-nickel alloys. They are high added values materials. The research contains two main parts. Laboratory tests (completed with bibliography) that provide thermal and mechanical properties of the ingot and the mould but also heat transfer coefficients between the ingot and its environment (mould, air and water). These parameters are required in the second part : development and validation of numerical modelization by the finite element method to optimise the industrial process. [less ▲]

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See detailImpact of simple cheating in application-level multicast
Mathy, Laurent ULg; Blundell, N.; Roca, V. et al

in INFOCOM 2004. Twenty-third AnnualJoint Conference of the IEEE Computer and Communications Societies (2004)

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See detailLes contrats. Le contrat d'entreprise et la loi Breyne
Kohl, Benoît ULg

in Chroniques du droit à l'usage du notariat (2004)

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See detailMarble classification using scale spaces
Dislaire, Godefroid; Pirard, Eric ULg; Vanrell, Maria

in Prykryl, R. (Ed.) Dimension Stone (2004)

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See detailSaturation and non-linear effects in diffractive processes
Selyugin, Oleg V; Cudell, Jean-René ULg

in Burdik, C. (Ed.) 11th International Conference On Symmetry Methods In Physics (SYMPHYS-11) (2004)

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See detailLa bête qui n’existait pas. La question du réel et de sa construction dans l’étude des vertus thérapeutiques de l’interaction avec un animal »
Servais, Véronique ULg

in Muchielli, Alex (Ed.) La place du constructivisme pour l'étude des communications (2004)

Drawing form an experimental study on the thrapeutic effect of dolphins, this paper examines how the team constructed different realities that were differently positive for the children. It is a case of ... [more ▼]

Drawing form an experimental study on the thrapeutic effect of dolphins, this paper examines how the team constructed different realities that were differently positive for the children. It is a case of rosenthal effect explained. [less ▲]

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

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

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See detailNew trends in flood risk analysis: working with 2D flow models, laser DEM and a GIS environment
Archambeau, Pierre ULg; Dewals, Benjamin ULg; Erpicum, Sébastien ULg et al

in Greco, M.; Carravetta, A.; Della Morte, R. (Eds.) Proceedings of the 2nd International Conference on Fluvial Hydraulics: River Flow 2004 (2004)

This paper outlines the integration of new and accurate laser DEM into the determination of floodplains. Global and robust GIS environment is absolutely necessary to manage this very large amounts of ... [more ▼]

This paper outlines the integration of new and accurate laser DEM into the determination of floodplains. Global and robust GIS environment is absolutely necessary to manage this very large amounts of topographic data. The development and interaction of 2D flow models, simplified or not, ensures to offer more accurate and flexible physically based tools to the decision-makers. [less ▲]

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See detailProposition d’une méthode de typologie hydro-géomorphologique des cours d’eau et tes sur un sous-bassin du Rhône (Bassin de l’Yzeron).
Schmitt, Laurent; Valette, L.; Valin, K. et al

in MOSELLA, XXIX (3-4) (2004)

Proposal of a method of hydro-geomorphological typology of rivers and test of a sub-basin of the Rhône River (Yzeron basin). The paper proposes a hydro-geomorphological typology method of watercourses ... [more ▼]

Proposal of a method of hydro-geomorphological typology of rivers and test of a sub-basin of the Rhône River (Yzeron basin). The paper proposes a hydro-geomorphological typology method of watercourses that might potentially be used in western Europe. The method was tested in the Yzeron basin (France). Field data were collected and analysed by multivariate statistics. Statistical results were consistent with the results of the typology model. Some recommendations are also made for the future development of automatic methods of characterization-sectorization of rivers. [less ▲]

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See detailRencontres avec des agriculteurs slovènes
Schmitz, Serge ULg

in Journal de l'Europe (2004)

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See detailElaboration d’une typologie hydro-géomorphologique de cours d’eau dans l’Euregio Meuse-Rhin
Hallot, Eric ULg; Schmitt, L.; Mols, J. et al

in Mosella - XXIX, 3-4 (2004)

This paper shows the first results of a method of river hydro-geomorphological typology applied on the Euregio Maas-Rhine. This is based on non factorial multivariate analysis (clusters) of only ... [more ▼]

This paper shows the first results of a method of river hydro-geomorphological typology applied on the Euregio Maas-Rhine. This is based on non factorial multivariate analysis (clusters) of only quantitative data automatically extracted from DEM or obtained by field measurements with a simplified protocol. The regional differentiation of variables allows the automatic characterization of rivers especially with the specific stream power. [less ▲]

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See detailStructural damage diagnosis under changing environmental conditions
Yan, A. M.; Kerschen, Gaëtan ULg; De Boe, Pascal et al

in 7th International Conference on Motion and Vibration Control, Saint Louis, 2004 (2004)

A method is proposed to perform structural health monitoring under varying environmental and operational conditions. The method is based on principal component analysis (PCA) applied to a data set ... [more ▼]

A method is proposed to perform structural health monitoring under varying environmental and operational conditions. The method is based on principal component analysis (PCA) applied to a data set containing vibration characteristics identified during the monitoring of the structure. The advantage of the method is that it does not require the measurement of environmental parameters that are taken into account as embedded variables. As the influence of environmental effects may be effectively eliminated, the residual error of the PCA prediction model remains small if the structure is healthy, and increases significantly when structural damage occurs. Novelty analysis on the residual errors provides a statistical indication of damage. The PCA-based damage detection method is illustrated using experimental data. It will also be shown that when the relationship between the vibration characteristics becomes nonlinear, PCA is advantageously replaced by one of its nonlinear generalizations. [less ▲]

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See detailEffect of fertilisation with selenium on plasma selenium in Belgian Blue suckling cows and heifers: first results
Dufrasne, Isabelle ULg; Cabaraux, Jean-François ULg; Coenen, M. et al

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

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

in Systems, Man and Cybernetics, 2004 IEEE International Conference on (2004)

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See detailStudy of the cooling process of an extruded aluminium profile
Bouffioux, Chantal ULg; Carton, Marc ULg; Lecomte-Beckers, Jacqueline ULg et al

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

The prediction of the final axial stresses and the residual strains of complex extruded aluminium profiles requires a good knowledge of the material behavior and of the industrial process. This paper is ... [more ▼]

The prediction of the final axial stresses and the residual strains of complex extruded aluminium profiles requires a good knowledge of the material behavior and of the industrial process. This paper is focused on the methods required to provide the whole set of data: material ones and process ones. Scanning differential calorimetry, dilatometry and diffusivity tests identify thermophysic material properties and hot tensile tests identify parameters of the elastovisco- plastic Norton-Hoff law. The description of the industrial process and its simulations are described. Then a sensitivity analyzis provides the cooling key parameters causing the undesired final curvature during the industrial process. [less ▲]

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See detailIdentification of material parameters using bi-axial machine
Flores, Paulo; de Montleau, P.; Mathonet, V. et al

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

Experimental testing equipment is built in order to identify material parameters of complex phenomenological constitutive laws. This equipment consists in a bi-axial test machine able to perform plane ... [more ▼]

Experimental testing equipment is built in order to identify material parameters of complex phenomenological constitutive laws. This equipment consists in a bi-axial test machine able to perform plane strain and simple shear tests separately or simultaneously and a Miyauchi simple shear test device; an optical extensometer is used to identify the strain field. The article focus on the validation of the results of this new equipment by comparing with results obtained by standard machines and/or by using FEM simulations of already identified materials. The first results show that the bi-axial machine performs the plane strain test optimally and some modifications are proposed in order to improve the results for the simple shear test. Miyauchi device shows a good performance and the experimental results are compared with a FEM simulation. [less ▲]

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See detailInverse analysis on in situ geotechnical measurement using a genetic algorithm
Malécot, Yann; Levasseur, Séverine ULg; Boulon, Marc et al

in Pande, G. N.; Pietruszczak, S. (Eds.) Numerical Models in Geomechanics (2004)

This paper is dedicated to the identification of constitutive parameters of the Mohr-Coulomb constitutive model from in situ measurements. A general definition of an objective function is proposed. A ... [more ▼]

This paper is dedicated to the identification of constitutive parameters of the Mohr-Coulomb constitutive model from in situ measurements. A general definition of an objective function is proposed. A direct approach of inverse analysis is used to identify the shear modulus and the friction angle in four different situations. The first two examples deal with a “numerical” and with a real pressuremeter curve. A difficult convergence and a strong non unicity of solution is observed, which is classical in inverse analysis (ill posed problems). In a second stage, the horizontal displacements related to two excavation problems are used for identifying the two mechanical parameters. A clear minimum of the objective function is detected, giving a unique solution. The reasons of these differences are discussed and some ways of improving the interpretation of the pressuremeter test results are proposed. [less ▲]

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See detailModifying eigenvalue interactions near weak resonance
Auvray, Vincent; Dobson, Ian; Wehenkel, Louis ULg

in Proc. of International Symposium on Circuits and Systems (2004)

In electric power system instabilities such as subsynchronous resonance or interarea oscillations, two complex modes can approach each other in frequency and then interact by changing damping so that one ... [more ▼]

In electric power system instabilities such as subsynchronous resonance or interarea oscillations, two complex modes can approach each other in frequency and then interact by changing damping so that one of the modes becomes unstable. Selecting changes in parameters to minimize this interaction is difficult by trial and error. By analyzing the interaction as a perturbation of a weak resonance, we calculate sensitivities that indicate the parameters to be changed to minimize the interaction and stabilize the system. The method is illustrated with a simple example of two coupled linear oscillators. The use of sensitivity methods to change the type of the interaction is also demonstrated. [less ▲]

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See detailInfluence de la variété sur le développement de mycosphaerella graminicola et sur les stratégies de protection fongicide chez le blé
Bodson, Bernard ULg; Amand, O.; Vancutsem, Françoise ULg et al

in Conférence internationale sur les maladies des plantes (2003, December 03)

Mycosphaerella graminicola development is mainly influenced by climatic conditions; Rainrall, relative humidity and temperature are main para&meters taken in account in fungi development models and in ... [more ▼]

Mycosphaerella graminicola development is mainly influenced by climatic conditions; Rainrall, relative humidity and temperature are main para&meters taken in account in fungi development models and in decision support system for control of this wheat disease (Moreau and Maraite, 2000). However field trains have also shown that various crop parameters such variety susceptibility, have to be taken into consideration for optimum fungicide protection. [less ▲]

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See detailStabilization of periodic orbits in a wedge billiard
Sepulchre, Rodolphe ULg; Gerard, Manuel

in Proceedings of the 42nd IEEE Conference on Decision and Control (2003, December)

This paper introduces a stabilization problem for an elementary impact control system in the plane. The rich dynamical properties of the wedge billiard, combined to the relevance of the associated ... [more ▼]

This paper introduces a stabilization problem for an elementary impact control system in the plane. The rich dynamical properties of the wedge billiard, combined to the relevance of the associated stabilization problem for feedback control issues in legged robotics make it a valuable benchmark for energy-based stabilization of impact control systems. [less ▲]

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

in Meeting of the Belgian Endocrine Society : December 2003 (2003, December)

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See detailLCA et rééducation isocinétique : analyse critique
Croisier, Jean-Louis ULg

in Actes de la XXIIème Journée scientifique de l’AMISEK « Controverses en chirurgie et rééducation du genou » (2003, December)

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See detailAdvances in the time integration of Dynamical Systems. Applications to Crashworthiness problems
Noels, Ludovic ULg; Stainier, Laurent ULg; Ponthot, Jean-Philippe ULg

in Proceedings of the International Crashworthiness and Design Symposium 2003 (2003, December)

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See detailSegmentation by adaptive prediction and region merging
Van Droogenbroeck, Marc ULg; Talbot, Hugues

in Digital Image Computing Techniques and Applications, Volume II (2003, December)

This paper presents a segmentation technique based on prediction and adaptive region merging. While many techniques for segmentation exist, few of them are suited for the segmentation of natural images ... [more ▼]

This paper presents a segmentation technique based on prediction and adaptive region merging. While many techniques for segmentation exist, few of them are suited for the segmentation of natural images containing regular textures defined on non-rectangular segments. In this paper, we propose a description of regions based on a deconvolution algorithm whose purpose is to remove the influence of the shape on region contents. The decoupling of shape and texture information is achieved either by adapting waveforms to the segment shape, which is a time-consuming task that needs to be repeated for each segment shape, or by the extrapolation of a signal to fit a rectangular window, which is the chosen path. The deconvolution algorithm is the key of a new segmentation technique that uses extrapolation as a prediction of neighbouring regions. When the prediction of a region fits the actual content of a connected region reasonably well, both regions are merged. The segmentation process starts with an over-segmented image. It progressively merges neighbouring regions whose extrapolations fit according to an energy criterion. After each merge, the algorithm updates the values of the merging criterion for regions connected to the merged region pair. It stops when no further gain is achieved in merging regions or when mean values of adjacent regions are too different. Simulation results indicate that, although our technique is tailored for natural images containing periodic signals and flat regions, it is in fact usable for a large set of natural images. [less ▲]

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See detailFrom Fantômas to The Dice Cup : Poetry and the Boundaries of Novelization
Delville, Michel ULg

in baetens, jan (Ed.) La novellisation (2003, November 23)

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See detailThe genus Biernatella Balinski, 1977 (Brachiopoda) from the late Frasnian of Belgium
Mottequin, Bernard ULg

in Dhondt, A. (Ed.) Academic Session in honour of Pierre Bultynck : RBINS, Brussels 22 November 2003 (2003, November 22)

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See detailEssais de reproduction expérimentale de l'entéropathie épizootique du lapin (EEL) avec des inoculums originaires de Belgique et des Pays-Bas et avec des souches bactériennes isolées de ces inoculums ainsi que de TEC2 et TEC3 (inoculums INRA)
Licois, Dominique; Dewrée, Roxane; Coudert, Pierre et al

in Proceedings of the 10èmes Journées de la Recherche Cunicole (2003, November 20)

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See detailCanister free videogrammetry system for thermal vacuum and space applications
Roose, Stéphane ULg; Stockman, Yvan ULg; Bolsee, Jean-Christophe et al

in Decker, J.; Brown, N. (Eds.) Proceedings of the Conference on Recent Developments in Traceable Dimensional Measurements, (2003, November 20)

The development of a canister-free videogrammetry system is presented. Applications in view, are coordinate measurements during thermal vacuum test and on-baord space flight metrology of mechanical ... [more ▼]

The development of a canister-free videogrammetry system is presented. Applications in view, are coordinate measurements during thermal vacuum test and on-baord space flight metrology of mechanical structures, reflectors and antenna's. The paper presents the breadboard system architecture. Two breadboards have been developed. One is based on a space-qualified micro-imager camera. Lenses and flashers are all commercial components and have been made vacuum compatible. Results of accuracy (typically 50ppm) and resolution (typically 25 ppm) tests, in ambient and in vacuum are also presented. [less ▲]

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See detailL'Entéropathie Epizootique du Lapin (EEL) : étude du rôle des infections par clostridium perfringens dans l’étio-pathogénie de ce syndrome
Dewrée, Roxane; Licois, Dominique; Coudert, Pierre et al

in Proceedings of the 10èmes Journées de la Recherche Cunicole (2003, November 20)

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See detailL'Entéropathie Epizootique du Lapin (EEL) : un bilan provisoire des résultats après 20 mois de recherches
Marlier, Didier ULg; Dewrée, Roxane; Licois, Dominique et al

in Proceedings of the 10èmes Journées de la Recherche Cunicole (2003, November 20)

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See detailPregnancy diagnosis in sheep by means of ultrasound and ovine pregnancy-associated glycoprotein (ovPAGs)
Verberckmoes, S; Vandaele, L; De Cat, S et al

in Proceeding of pregnancy diagnosis in sheep by means of ultrasound and ovine pregnancy-associated glycoprotein (2003, November 17)

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See detailTraffic Effects of Driver Assistance Systems – The Approach within INVENT
Benz, T.; Christen, Fréderic ULg; Lerner, G. et al

(2003, November 16)

Within the German Research Initiative INVENT, the partial project „Verkehrliche Wirkung, Recht und Akzeptanz (VRA)“ deals with traffic effects, legal aspects, acceptance and economics of driver assistance ... [more ▼]

Within the German Research Initiative INVENT, the partial project „Verkehrliche Wirkung, Recht und Akzeptanz (VRA)“ deals with traffic effects, legal aspects, acceptance and economics of driver assistance systems. This presentation gives examples for the consulting services of VRA as well as for the early simulations of a driver assistance system. Such simulations vary in scale from basic functions over driving situations and traffic situations to traffic scenarios. Results are presented for the basic functions and driving situations for a stop-and-go extension of adaptive cruise control. [less ▲]

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See detailOptical and mechanical design of a straylight rejection baffle for CoRoT
Plesseria, Jean-Yves ULg; Mazy, Emmanuel ULg; Defise, Jean-Marc ULg et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2003, November 01)

The COROT mission is part of the program "Petites Missions" of CNES (French space agency). It implies international cooperation between France, Belgium, Germany, Austria, Spain and the European Space ... [more ▼]

The COROT mission is part of the program "Petites Missions" of CNES (French space agency). It implies international cooperation between France, Belgium, Germany, Austria, Spain and the European Space Agency (ESA). COROT aims to perform astroseismology measurements and to detect exoplanets. Long duration observations of stars will be used to detect periodic variations with an afocal telescope followed by a dioptric objective and 4 CCDs. Due to the orbit of the spacecraft (low altitude polar orbit) and even if the observation are performed in a direction perpendicular to orbit plane, the measurements can be disturbed by the straylight reflected on the earth (albedo) that can generate periodic perturbation. CSL is in charge of the design and procurement, with the help of Belgian industries, of a baffle and its protective cover that will be mounted on top of the afocal entrance telescope. The requirements are very stringent from the optical point of view as well as from the mechanical point of view. The rejection of the baffle must be of the order of 10[SUP]13[/SUP] for field angles above 20 degrees while the allocated mass is 19 kilograms. [less ▲]

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See detailModélisation d'une semelle filante de fondation: influence de la règle d'écoulement, de l'angle de Lode et du maillage.
El Hammoumi, O.; Charlier, Robert ULg

in Int. Conf. FondSup - Fondations Superficielles (2003, November)

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See detailManagement of Electric and Hybrid vehicles
Lilien, Jean-Louis ULg; Yuan, H.

(2003, November)

The battery management system (BMS) is an important feature for electric (EVs) and hybrid (HVs) vehicles. The BMS has close connections with the vehicle control and command and gives access to real time ... [more ▼]

The battery management system (BMS) is an important feature for electric (EVs) and hybrid (HVs) vehicles. The BMS has close connections with the vehicle control and command and gives access to real time power available and remaining autonomy. Such information is dramatic and comprises major inputs of the hybrid vehicle strategy on the road. The BMS is obviously related to battery modeling. Electrochemical modeling would be based on the qualification of the intrinsic chemical reactions and would help to define the parameters of the battery. Generally it is hopeless to use this model in such applications, due to all its complexities [less ▲]

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See detailMMP-2 and MMP-9 activity is increased in bronchoalveolar lavage fluid of asthmatic cats
Kirschvink, N.; Delvaux, François ULg; Leemans, J. et al

in Autumn Meeting, Belgian Society of Fundamental and Clinical physiology and Pharmacology - Liège - Belgique - novembre 2003 (2003, November)

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See detailRole of estrogens in the modulation of inflammatory pain : a study in aromatase knock-out mice using the trigeminal formalin model
Multon, Sylvie ULg; RIKIR, Estelle ULg; HALLEUX, Sandrine ULg et al

in Book of Abstracts of the 33th Annual Meeting Society for Neuroscience (Nov 2003) (2003, November)

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See detailL'Observatoire de la consommation alimentaire
Claustriaux, Jean-Jacques ULg; Cordier, L.; Duquesne, B. et al

in Vers une politique de qualité, à quel prix ? (2003, October 08)

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See detailBirefringent achromatic phase shifters for nulling interferometry and phase coronagraphy
Mawet, D.; Baudrand, J.; Lenaerts, Cedric ULg et al

in Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

Achromatic Phase Shifters are mandatory components in the field of nulling interferometry and phase coronagraphy. Indeed, in order to detect faint objects (e.g. exo-planets) around a central bright star ... [more ▼]

Achromatic Phase Shifters are mandatory components in the field of nulling interferometry and phase coronagraphy. Indeed, in order to detect faint objects (e.g. exo-planets) around a central bright star, one must attenuate the latter by all means. To do this, the most efficient way is to "create" a destructive interference on the blinding light. This technique is called nulling and is common to the two fields mentioned above; the first with several telescopes, the second with only a single aperture. How does it work? The incoming light from the central object is divided into several beams on which one applies a differential Ï phase shift by means of these so-called phase shifters. Then, when the beams are properly recombined together, they simply subtract from each other. "Achromatic" means that we can apply this process over a large spectral bandwidth. This quality will not only be required for the detection and characterization of exo-planets but also for several other astrophysical objects involving huge contrasts like dust shells around young bright stars, AGN,... The proposed birefringent phase shifters and the original implementation schemes we suggest should provide flexible and powerful solutions for these purposes. [less ▲]

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See detailGENIEsim: the GENIE simulation software
Absil, Olivier ULg; den Hartog, R.; Erd, C. et al

in Fridlund, Malcolm; Henning, Thomas (Eds.) Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

GENIEsim, the GENIE simulation software, is an IDL-based code to simulate future observations with the Ground-based European Nulling Interferometer Experiment, which should be commissioned on the Very ... [more ▼]

GENIEsim, the GENIE simulation software, is an IDL-based code to simulate future observations with the Ground-based European Nulling Interferometer Experiment, which should be commissioned on the Very Large Telescope Interferometer (VLTI) in 2007. The code simulates operation in the mid-infrared (L' and N bands) and includes all major noise sources. The atmospheric turbulence is described by a Kolmogorov power spectrum, from which random time series are computed for perturbations to the optical paths. The effect of turbulence is reduced by means of control loops, which are either included in the VLTI facility (MACAO, PRIMA) or specific to the GENIE instrument. The output of GENIEsim is a time series of fluxes computed by integration of a source field multiplied by the GENIE transmission map, projected onto the plane of the sky. Simulations have already allowed to identify critical points in the design of the instrument, such as OPD and dispersion control, calibration of stellar leakage and background subtraction. [less ▲]

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See detailCan GENIE characterize debris disks around nearby stars?
Absil, Olivier ULg; Kaltenegger, L.; Eiroa, C. et al

in Fridlund, Malcolm; Henning, Thomas (Eds.) Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

The Ground-based European Nulling Interferometer Experiment will combine the light collected by two or more VLT telescopes and make them interfere in a destructive way, thereby revealing the close ... [more ▼]

The Ground-based European Nulling Interferometer Experiment will combine the light collected by two or more VLT telescopes and make them interfere in a destructive way, thereby revealing the close neighborhood of nearby stars. Operating at mid-infrared wavelengths, GENIE will be particularly sensible to warm circumstellar dust. This paper presents simulated observations of the debris disk around the nearby A2V star zeta Leporis obtained with the GENIE simulation software. Parameters such as inclination, density power-law exponent and inner radius can be retrieved with a relative precision of 1% or better using only six observations of 15 minutes. In the context of the DARWIN/TPF mission, warm circumstellar dust could be a serious limitation to the detection of Earth-like exoplanets. This paper shows that GENIE will detect disks as faint as 23 times our local zodiacal cloud around Sun-like stars at 10 pc, and will thus allow to discard unsuitable targets for DARWIN/TPF. [less ▲]

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See detailThe Ground-based European Nulling Interferometry Experiment (DARWIN-GENIE)
Gondoin, P.; Absil, Olivier ULg; den Hartog, R. et al

in Fridlund, Malcolm; Henning, Thomas (Eds.) Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

Darwin is one of the most challenging space projects ever considered by the European Space Agency (ESA). Its principal objectives are to detect Earth-like planets around nearby stars and to characterise ... [more ▼]

Darwin is one of the most challenging space projects ever considered by the European Space Agency (ESA). Its principal objectives are to detect Earth-like planets around nearby stars and to characterise their atmospheres. Darwin is conceived as a space "nulling interferometer" which makes use of on-axis destructive interferences to extinguish the stellar light while keeping the off-axis signal of the orbiting planet. Within the frame of the Darwin program, the European Space Agency (ESA) and the European Southern Observatory (ESO) intend to build a ground-based technology demonstrator called GENIE (Ground based European Nulling Interferometry Experiment). Such a ground-based demonstrator built around the Very Large Telescope Interferometer (VLTI) in Paranal will test some of the key technologies required for the Darwin Infrared Space Interferometer. It will demonstrate that nulling interferometry can be achieved in a broad mid-IR band as a precursor to the next phase of the Darwin program. [less ▲]

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See detailCould GENIE detect hot Jupiters?
den Hartog, Roland; Absil, Olivier ULg; Kaltenegger, L. et al

in Fridlund, Malcolm; Henning, Thomas (Eds.) Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

The prime objective of GENIE (Ground-based European Nulling Interferometry Experiment) is to obtain experience with the design, construction and operation of an IR nulling interferometer, as a preparation ... [more ▼]

The prime objective of GENIE (Ground-based European Nulling Interferometry Experiment) is to obtain experience with the design, construction and operation of an IR nulling interferometer, as a preparation for the DARWIN/TPF mission. In this context, the detection of a planet orbiting another star would provide an excellent demonstration of nulling interferometry. Doing this through the atmosphere, however, is a formidable task. In this paper we assess the prospects of detecting, with nulling interferometry on ESO's VLT, a Hot Jupiter, a giant planet in a close orbit around its parent star. First we discuss the definition of the optimal target. Then we present a simulated observation of the Tau Bootis system, which suggests that GENIE, in a L'-band single Bracewell configuration, could detect the hot Jupiter in a few hours time with a signal-to-noise ratio of up to ~80. Although there are strong requirements on the control-loop performance, background subtraction and accuracy of the photometry calibration, we conclude that at present there do not seem to be fundamental problems that would prevent GENIE from detecting hot Jupiters. Hence the answer to the question in the title is yes. [less ▲]

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See detailCharacterisation of disks around YSOs with GENIE
Kaltenegger, Lisa; Absil, Olivier ULg; Eiroa, Carlos et al

in Fridlund, Malcolm; Henning, Thomas (Eds.) Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

Recent interferometric observations show that the interfered near-IR size of the circumstellar material around Young Stellar Object (YSO) are larger than those expected from accretion disk models. There ... [more ▼]

Recent interferometric observations show that the interfered near-IR size of the circumstellar material around Young Stellar Object (YSO) are larger than those expected from accretion disk models. There are currently different models that account for the excess IR emission of Young Stellar Objects (YSO). At the same time, the answers to many questions on the evolutionary status and the origin of the activity and variability depend critically on the relative importance of circumstellar distribution of material in disks or envelopes at different spatial scales. Operating at mid-infrared wavelengths, the Ground-based European Nulling Interferometer Experiment (GENIE) will be particularly sensitive to warm circumstellar dust and will thus provide the opportunity to characterize dust disks around YSOs. Observations with GENIE will enable us to investigate the properties of the circumstellar dust, which are responsible for the excess near-infrared fluxes. The nulling of the central star will bring out the disk in much more detail and hence put stronger constraints on these models. [less ▲]

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See detailOverview of the DARWIN mission
Kaltenegger, L.; Karlsson, A.; Fridlund, M. et al

in Fridlund, Malcolm; Henning, Thomas (Eds.) Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets (2003, October 01)

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See detailTraitement de la lombalgie chronique : intérêts du reconditionnement physique
Vanderthommen, Marc ULg; Demoulin, Christophe ULg; charlier, M. et al

in Abstract book du Symposium FNDLK – Kinésithérapie passive ou active ? (2003, October)

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See detailModeling contamination of clay.
Boukpeti, N.; Charlier, Robert ULg; Hueckel, T.

in Proc. Int. Conf. on Coupled T-H-M-C Processes in Geosystems, GeoproC 2003 (2003, October)

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See detailProfil isocinétique des fléchisseurs et extenseurs du coude
Maquet, Didier ULg; Croisier, Jean-Louis ULg; Forthomme, Bénédicte ULg et al

in Abstract book des 4èmes Journées Belges d’Isocinétisme (2003, October)

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See detailLa myopathie atypique des équidés: particularités cliniques, examens complémentaires et hypothèses étiologiques.
Votion, Dominique ULg; Delguste, Catherine ULg; Amory, Hélène ULg et al

in Journée AVEF (Association des Vétérinaires Equins Français) (2003, October)

La myopathie atypique (MA) des équidés, encore appelée myoglobinurie atypique des chevaux au pré, est un syndrome caractérisé par l’apparition soudaine de faiblesse musculaire, de raideur, de tremblements ... [more ▼]

La myopathie atypique (MA) des équidés, encore appelée myoglobinurie atypique des chevaux au pré, est un syndrome caractérisé par l’apparition soudaine de faiblesse musculaire, de raideur, de tremblements et de sudation profuse généralisée ou localisée. L’animal adopte rapidement une position en décubitus sternal ou latéral. Lorsque de l’urine est émise, celle-ci a une couleur brune « chocolatée ». L’examen clinique révèle fréquemment de la tachycardie, de l’hypothermie et de la dyspnée. Le dosage de l’activité sérique de la créatinine kinase contribue à la présomption de MA en démontrant une destruction musculaire massive mais le diagnostic définitif repose nécessairement sur l’examen histologique des muscles intervenant dans la posture et la respiration, muscles généralement atteints lors de cette maladie ainsi que sur l’examen du muscle cardiaque où des lésions de dégénérescence sont occasionnellement observées. Diverses hypothèses étiologiques sont en cours d’investigation et les plus probables incriminent l’action d’une mycotoxine ou d’une toxine d’origine bactérienne, ingérée ou produite dans le tractus digestif. Néanmoins, une carence nutritionnelle n’est pas exclue. Quelle que soit la cause, il semble que des conditions climatiques défavorables favorisent le déclenchement des symptômes. La récolte de données épidémiologiques permettra de mieux définir les moyens de prévention de cette maladie souvent fatale. [less ▲]

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See detailExploration isocinétique de l’épaule : mise au point
Forthomme, Bénédicte ULg; Huskin, Jean-Pierre ULg; Willems, S. et al

in Actes des 4èmes Journées Belges d’Isocinétisme (2003, October)

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See detailTeaching small animal clinical nutrition in Belgium
Diez, Marianne ULg; Hesta, Myriam

in Kamphues, J.; Wolf, P. (Eds.) Proceedings of the 7th ESVCN Conference (2003, October)

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See detailThe value of isokinetic muscle testing in the anterior knee pain syndrome. A prospective study in a military setting
van Tiggelen, Damien; Deloyer, P.; Flagothier, P. et al

in Actes des 4èmes Journées Belges d’Isocinétisme (2003, October)

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See detailModelling and analysis of a MEMS approach to DC Voltage step-up conversion
Haas, CH; Kraft, Michael ULg

in Proc. Micromechanics Europe (MME) (2003, October)

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See detailDOMS : traitement ou prévention ?
Croisier, Jean-Louis ULg; Forthomme, Bénédicte ULg; Maquet, Didier ULg et al

in Actes des 4èmes Journées Belges d’Isocinétisme (2003, October)

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See detailProsztaglandin kezelések hatasa az ovulacio bekövezkeztére szarvasmarhakban
Répasi, A; Beckers, Jean-François ULg; Sulon, J et al

in Proceeding of prosztaglandin kezelések hatasa az ovulacio bekövezkeztére szarvasmarhakban (2003, October)

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See detailEvaluation isocinétique des muscles de la hanche chez le patient coxarthrosique
Henrotin, Yves ULg; Ralet, B.; Croisier, Jean-Louis ULg et al

in Actes des 4èmes Journées Belges d’Isocinétisme (2003, October)

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See detailEvaluation d'une méthode de prédiction des déplacements de terminaux dans les réseaux mobiles
François, Jean-Marc; Leduc, Guy ULg; Martin, Sylvain ULg

in Ingénierie des protocoles - Réseaux mobiles et ad hoc, qualité de service, test et validation (2003, October)

Dans les réseaux mobiles, la prédiction du déplacement des terminaux fait régulièrement l'objet d'études: c'est une étape importante sur le chemin des garanties de QoS dans ces réseaux. Dans les ... [more ▼]

Dans les réseaux mobiles, la prédiction du déplacement des terminaux fait régulièrement l'objet d'études: c'est une étape importante sur le chemin des garanties de QoS dans ces réseaux. Dans les infrastructures actuelles, les sources d'informations permettant d'induire le déplacement d'un mobile sont multiples; de plus, le cas des terminaux incapables d'émettre de telles informations est aussi fréquent qu'important. Dans ces conditions, pour qu'un mécanisme de prédiction puisse se déployer, il lui faut pouvoir s'adapter à cette diversité de façon flexible. L'évaluation d'un tel mécanisme est le sujet de cet article; il s'agit d'une méthode simple et s'appuyant sur peu d'hypothèses. [less ▲]

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See detailComportement des variétés de froment vis-à-vis de l'hiver 2002-2003
Couvreur, Luc; Herman, Jean-Luc; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2003, September 09)

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See detailTraitement des semences de froment contre le piétin-échaudage
Moreau, Jean-Marc; Couvreur, Luc; Vancutsem, Françoise ULg

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2003, September 09)

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See detailMesures agri-environnementales (MAE) en froment d'hiver
Soete, Alice; Vancutsem, Françoise ULg; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2003, September 09)

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See detailLe froment d'hiver
Vancutsem, Françoise ULg; Couvreur, Luc; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2003, September 09)

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See detailAperçu de la qualité des froments d'hiver en 2003
Sinnaeve, Geoges; Lenartz, J.; Herman, Jean-Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2003, September 09)

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See detailFumure et protection phytosanitaire des céréales
Monfort, Bruno; Herman, Jean-Luc; Bodson, Bernard ULg et al

in Livre Blanc - Céréales Gembloux (2003, September 09)

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See detailClinical aspects of dietary fibres.
Diez, Marianne ULg; Nguyen, Patrick

in Rutgers, Caroline; Hurley, Karyl; Neiger, Reto (Eds.) Proceedings of the 13th ECVIM-CA Congress (2003, September 05)

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See detailFamilial isolated pituitary adenomas (FIPA) : not only acromegaly
Jaffrain-Réa, M. L.; Tamburrano, G.; Ciccarelli, A. et al

in 30 Congresso Nazionale della Socièta Italiana di Endocrinologia : Milano, 24-27 settembre 2003 (2003, September)

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See detailEarly onset neonatal sepsis and meningitis in Belgium: a decade review
MELIN, Pierrette ULg; Maquet, Julie; Ducoffre, Geneviève et al

in American Society of Microbiology (Ed.) Program and Abstracts of the 43rd Intersciences Conference on Antimicrobial Agents and Chemotherapy (2003, September)

Background: In the late 1990s, Belgium has reached the era of “group B streptococcal (GBS) prevention” and after 1996, some institutions, but not the majority, had implemented intrapartum ... [more ▼]

Background: In the late 1990s, Belgium has reached the era of “group B streptococcal (GBS) prevention” and after 1996, some institutions, but not the majority, had implemented intrapartum antibioprophylaxis for GBS prevention. Concern exists that one unintended consequence of GBS prevention efforts through chemoprophylaxis may be an increase in the rate of serious neonatal infections due to Gram negative bacteria (GNB). To monitor trends, continued surveillance of neonatal sepsis is needed. Methods: On a weekly basis, laboratories of the Belgian sentinel network notified each case of neonatal bacteremia or meningitis occurring within 28 days after birth. We reviewed on a year-base data collected from 1991-2001 for early–onset diseases (EOD; < 5 days). Results: A yearly mean of 47 cases (24-90) were notified by 28 (16-35) laboratories. Overall GBS remained the leading cause and represented annually 37.9% (25-54.7%) of EOD and did not show significant change. It was followed by E.coli 11.4%, coagulase negative staphylococci (CNS) 11.9%, S.aureus 9.9%, Listeria sp 3.9%, S.pyogenes (GAS) 2.5%, S.pneumoniae 2.7%, H.influenzae 2.7% and others. During the decade, whereas a significant reduction in the rate of E.coli and other GNB EOD occurred (p <0.01), significant increases in the rate of EOD due to GAS (p <0.001), S.aureus (p <0.001), and CNS (p <0.01), were found. For CNS, we did not have data to distinguish definite or possible infections from contaminations. Conclusions: 1) During the last decade, GBS has remained the leading cause of neonatal EOD. 2) A decline in the rate of E.coli and other GNB infections occurred. 3) In the late 1990s, S.aureus and CNS were more frequently reported. 4) An increase in GAS occurrence was found 5) Potential change in pathogens overtime requires confirmation by ongoing surveillance. [less ▲]

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See detailOn the development of a model updating strategy of nonlinear vibrating structures
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in ASME International Design Engineering Technical Conferences, Chicago, 2003 (2003, September)

The objective of this paper is to present a model updating strategy of non-linear vibrating structures. Because modal analysis is no longer helpful in non-linear structural dynamics, a special attention ... [more ▼]

The objective of this paper is to present a model updating strategy of non-linear vibrating structures. Because modal analysis is no longer helpful in non-linear structural dynamics, a special attention is devoted to the features extracted from the proper orthogonal decomposition and one of its non-linear generalisations based on auto-associative neural networks. The efficiency of the proposed procedure is illustrated using simulated data from a three-dimensional portal frame. [less ▲]

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See detailClinical comparison between nasopharyngeal, oropharyngeal and laryngopharyngeal disorders in dogs and cats: a review of 80 cases.
Billen, Frédéric ULg; Peeters, Dominique ULg; Day, Michael et al

in Proceedings of the 13th ECVIM-CA Congress (4-6/09/2003), Uppsala, Sweden (2003, September)

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See detailQualitative and quantitative criteria for comfortable urban public spaces
Reiter, Sigrid ULg; De Herde, André

in Carmeliet, Jan; Hens, Hugo; Vermeir, Gerrit (Eds.) Research in building physics. Proceedings of the 2nd International Conference on Building Physics (2003, September)

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See detailInfluence of the section and of the insulation type on the equivalent time
Cadorin, Jean-François; Perez, Christian; Franssen, Jean-Marc ULg

in Proceedings of the 4th International Seminar on Fire and Explosion Hazards (2003, September)

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See detailAnalytical and finite element modelling of a capacitive acceleromter
Houlihan, R; Chee, KL; Kraft, Michael ULg

in Proc. Eurosensors XVII Conference (2003, September)

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See detailFire design of steel structures EC3
Franssen, Jean-Marc ULg

in Proceedings of the International Seminar on Fire Safety of Steel Structures (2003, September)

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