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See detailLe règlement préventif des conflits entre actionnaires
Kohl, Benoît ULg; Matray, Didier ULg

in Le règlement des conflits entre actionnaires (2002, April 02)

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See detailAlgorithms for openings of binary and label images with rectangular structuring elements
Van Droogenbroeck, Marc ULg

in Talbot, Hugues; Beare, Richard (Eds.) International Symposium on Mathematical morphology (ISMM) (2002, April)

Two new families of algorithms for computing openings of binary and label images are presented in this paper. The first family of algorithms is based on an horizontal scan, and a vertical scan that takes ... [more ▼]

Two new families of algorithms for computing openings of binary and label images are presented in this paper. The first family of algorithms is based on an horizontal scan, and a vertical scan that takes the result of the horizontal scan as input. With the results of these two scans it is possible to compute an opening with respect to a rectangle of any size. The second family of algorithms is based on the construction of an exhaustive list of rectangles included in an object. Rectangles of this list all have a maximal extension, i.e. no larger rectangle included in a region contains them. The opening then results from filling the output image with rectangles larger than the structuring element. After a description of the algorithms we provide a comparison of several algorithms in terms of computation time efficiency. The comparison shows that some of the new algorithms advantageously compete with existing algorithms. [less ▲]

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See detailSeismic Tomography and Ground Penetrating Radar Applied On Rock Slope Instability Analysis. Application On A Limestone Cliff In The Chartreuse Massif, France
Dussauge-Peisser, C; Wathelet, M; Jongmans, D et al

in EGS General Assembly Conference Abstracts (2002, April)

Abstract: Evaluating the stability state of a rock slope is a complex problem, mainly due to the number of possible failure mechanisms, and to the lack of knowledge of the real present state of the rock ... [more ▼]

Abstract: Evaluating the stability state of a rock slope is a complex problem, mainly due to the number of possible failure mechanisms, and to the lack of knowledge of the real present state of the rock mass. Geophysical methods appear as a useful tool for inves-tigating the deep discontinuity pattern, which is poorly known from surface observa-tions. However they have seldom been applied on steep rock slopes. The aim of this study is to test some of these methods on subvertical cliffs. We investigate the quality of information that they can ... [less ▲]

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See detailL'EAD au service d'une approche centrée sur l'apprenant et sur la médiatisation de l'expérience
Georges, François ULg; Demily, Fabian; Leclercq, Dieudonné ULg et al

(2002, April)

Le Laboratoire de Soutien à l’Enseignement Télématique (LabSET, directrice : M. Poumay) a, entre autres, pour mission d’aider les enseignants et les formateurs à concevoir et à développer leurs cours et ... [more ▼]

Le Laboratoire de Soutien à l’Enseignement Télématique (LabSET, directrice : M. Poumay) a, entre autres, pour mission d’aider les enseignants et les formateurs à concevoir et à développer leurs cours et activités sur Internet. Nous travaillons non seulement avec des institutions d’enseignement supérieur (Université et Hautes Ecoles), mais aussi avec des centres de formation, des centres de compétences, des organismes d’insertion socio-professionnelle et des fédérations d’entreprises. Ces partenariats ont dernièrement fait l’objet de deux projets : Technifutur, du nom de son commanditaire, et FORMADIS subsidié par la Communauté Européenne, le Ministère de l’emploi et de la formation de la région wallonne et le Ministère de l’enseignement supérieur de la Communauté Française de Belgique. L'article décrit ces initiatives. [less ▲]

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See detailIdentification of the nonlinear function in a vibrating nonlinear beam
Dimitriadis, Grigorios ULg; Cooper, Jonathan E

in Lees, A. W.; Prells, U.; Norton, J. (Eds.) Proceedings of the Third International Conference on Identification in Engineering Systems (2002, April)

The Constant Level Identification (CLI) method for nonlinear dynamical systems has been shown to identify accurately a wide variety of systems with discrete degrees of freedom. In this paper, the method ... [more ▼]

The Constant Level Identification (CLI) method for nonlinear dynamical systems has been shown to identify accurately a wide variety of systems with discrete degrees of freedom. In this paper, the method is applied to a continuous nonlinear system, namely a simulated model of a vibrating beam attached to a nonlinear spring. A Rayleigh-Ritz series representation of the beam is assumed in order to extract the desired number of modal responses. Then, a combination of modal and physical coordinates are used in the identification process. It is shown that the CLI method can accurately capture the shape of the nonlinearity in the system. [less ▲]

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See detailSevere Psittacosis in Children
Senterre, Thibault ULg; Lepage, Philippe; Senterre, Jean-Marc

in 10th International Congress of Infectious Disease (2002, March 12)

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See detailLa responsabilité des administrateurs dans les entreprises en difficulté
Kohl, Benoît ULg; Matray, Didier ULg; Duvieusart, Christian

in La faillite et le concordat cinq ans après la réforme (2002, March 08)

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See detailForm@HETICE : un dispositif de formation continuée des formateurs d'enseignants à un usage critique des Technologies de l'Information et de la Communication
Charlier, B.; Denis, Brigitte ULg

in Actes du 2e Congrès des chercheurs en Éducation (2002, March)

Form@HETICE1 est un dispositif original de formation continuée des formateurs d’enseignants à un usage critique des Technologies de l’Information et de la Communication au sein des catégories pédagogiques ... [more ▼]

Form@HETICE1 est un dispositif original de formation continuée des formateurs d’enseignants à un usage critique des Technologies de l’Information et de la Communication au sein des catégories pédagogiques des Hautes Ecoles (HE). Deux problématiques complémentaires guident la conception de ce dispositif : celle des usages éducatifs des TIC aux niveaux de la formation des futurs enseignants et des pratiques dans les écoles primaires et secondaires (Quels usages éducatifs des TIC?) (Denis, 2002) et celle plus globale de l’implantation d’une innovation qui tient compte du contexte organisationnel au sein duquel ce processus prend place : une rénovation d’ensemble des programmes de formation d’enseignants promue par le Ministère de la Communauté française (Quelle démarche d’intégration des TIC dans les pratiques de formation des enseignants ?). La prise en compte de ces deux problématiques a conduit une équipe de recherche collaborative à proposer des actions complémentaires qui dépassent la simple organisation de sessions de formation : • la mise en place d’un réseau de partage de ressources, • l'organisation de formations adaptées aux besoins des personnes ressources, • l'accompagnement de projets d'équipe dans chacune des Hautes Ecoles, • des actions parallèles concernant l’installation de « cybercentres » dans les établissements. Ces actions visent à produire un effet démultiplicateur : des personnes ressources participant au réseau forment leurs collègues, qui à leur tour forment les futurs enseignants amenés à introduire les TIC dans les activités menées avec leurs élèves. [less ▲]

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See detailNumerical determination of 3D temperature fields in steel joints
Franssen, Jean-Marc ULg; Brauwers, Luc

in Proceedings of the 2nd International workshop Structures in Fire (2002, March)

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See detailAn entropy based technique for information embedding in images
Van Droogenbroeck, Marc ULg; Delvaux, Jérôme

in IEEE Signal Processing Symposium, Proceedings (2002, March)

Many information hiding techniques have recently been analyzed as they could help manage part of the digital rights. Among the general framework of information hiding, the focus has been put on ... [more ▼]

Many information hiding techniques have recently been analyzed as they could help manage part of the digital rights. Among the general framework of information hiding, the focus has been put on steganography and on watermarking techniques. This paper proposes an entropy based technique for data embedding in images with a specific target, sometimes referred to as feature location: inclusion of a maximum amount of information instead of robustness against attacks. After an introduction, we analyze the error that results from a modification of the least significant bits. Then we describe our embedding technique. Finally we examine the upper bound of information that can be embedded in the least significant bits by means of our technique and we conclude. [less ▲]

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See detailLes conseils de fumure azotée
Bodson, Bernard ULg; Destain, Jean-Pierre ULg; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux (2002, February 27)

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See detailEvolution du fractionnement de la fumure azotée
Bodson, Bernard ULg; Vancutsem, Françoise ULg; Falisse, André

in Livre Blanc: Céréales - Gembloux (2002, February 27)

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See detailL'azote minéral du sol en 2001-2002 sous froment d'hiver
Bodson, Bernard ULg; Destain, Jean-Pierre ULg; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux (2002, February 27)

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See detailFongicides en froment
Moreau, Jean-Marc; Bodson, Bernard ULg; Vancutsem, Françoise ULg

in Livre Blanc: Céréales - Gembloux (2002, February 27)

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See detailIn vivo cell turnover in BLV-infected sheep.
Debacq, Christophe; Asquith, B.; Kerkhofs, Pierre et al

in Société Belge de Biochimie et de Biologie moléculaire (2002, February 22)

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See detailInteracting surface of the receptor-binding domain.
GATOT, Jean-Stéphane ULg; Callebaut, Isabelle; Van Lint, Carine et al

in Société Belge de Biochimie et de Biologie moléculaire. (2002, February 22)

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See detailPlasma pregnancy-associated glycoprotein (PAG) profiles in sheep
Ledezma-Torres, R.A; Beckers, Jean-François ULg; Holtz, W

in Proceeding of the 35th Annual Meeting on Physiology and Pathology of Reproduction of the German Veterinary Medical Society (2002, February 14)

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See detailFrequency domain approaches for the identification of an experimental beam with a local nonlinearity
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in 20th International Modal Analysis Conference, Los Angeles, 2002 (2002, February)

Two approaches for the identification of multi-degree-of-freedom non-linear systems in the frequency domain have recently been introduced, i.e., the conditioned reverse path (CRP) method and the non ... [more ▼]

Two approaches for the identification of multi-degree-of-freedom non-linear systems in the frequency domain have recently been introduced, i.e., the conditioned reverse path (CRP) method and the non-linear identification through feedback of the outputs (NIFO) method. The key idea of these methods is to eliminate the distortions caused by the presence of non-linearities in frequency response functions. In this paper, the theoretical background of the CRP and NIFO methods is briefly recalled. Then, the ability of these techniques to identify the behaviour of an experimental cantilever beam with a local geometrical non-linearity is tested. The results obtained with both methods are compared and discussed. [less ▲]

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See detailDesign of Load Shedding Schemes against Voltage Instability using Combinatorial Optimization
Van Cutsem, Thierry ULg; Moors, Cedric; Lefebvre, Daniel

(2002, January 31)

This paper proposes a methodology for the design of automatic load shedding against voltage instability. In a first step, we describe a method allowing to find the minimal shedding required in a given ... [more ▼]

This paper proposes a methodology for the design of automatic load shedding against voltage instability. In a first step, we describe a method allowing to find the minimal shedding required in a given unstable scenario. In a second step, we describe the structure of various controllers and identify the parameters to be optimized. Next, we present an optimization approach to find the controller parameters which optimize an overall performance objective. Results are presented on the Hydro-Québec system, in which load shedding is presently planned. [less ▲]

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See detailDissipative Forces and External Resonances
Jancart, Sylvie ULg; Lemaitre, Anne

in Richardson, David; Seidelmann, Kenneth; Wnuk, Edwin (Eds.) Dynamics of Natural and Artificial Celestial Bodies (2002, January 01)

Not Available

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See detailContext awareness for application sharing in teaching environment
Burger, C.; Bullinger, Eric ULg; Papakosta, S. et al

in Int. Conf. Advances in Infrastructure for e-Business, e-Education, e-Science, and e-Medicine on the Internet (SSGRR 2002w) (2002, January)

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See detailQuelle rééducation pour quelle pathologie d’épaule ?
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg

in Actes des IVèmes Journées Interdisciplinaires de Médecine, Kinésithérapie et Podothérapie (2002, January)

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See detailEvaluation et rééducation isocinétiques de l’épaule
Croisier, Jean-Louis ULg; Forthomme, Bénédicte ULg

in Actes des IVèmes Journées Interdisciplinaires de Médecine, Kinésithérapie et Podothérapie (2002, January)

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See detailGenetic algorithm optimisation of transient two-phase water pressures inside closed-end rock joints
Bollaert, Erik; Erpicum, Sébastien ULg; Pirotton, Michel ULg et al

in Schleiss, Anton; Bollaert, Erik (Eds.) Rock Scour due to falling high-velocity jets (2002)

High-velocity plunging water jets, appearing at the downstream end of dam weirs and spillways, can create scour of the rock. The prediction of this scour is necessary to ensure the safety of the toe of ... [more ▼]

High-velocity plunging water jets, appearing at the downstream end of dam weirs and spillways, can create scour of the rock. The prediction of this scour is necessary to ensure the safety of the toe of the dam as well as the stability of its abutments. A physically based engineering model has been developed at the Laboratory of Hydraulic Constructions for evaluation of the ultimate scour depth. This model is based on experimental measurements of water pressures at plunge pool bottoms and inside underlying rock joints. The pressures inside the joints revealed to be of highly transient nature and governed by the presence of free air. Hence, a numerical modelling of these pressures was performed, in collaboration with the Laboratory of Applied Hydrodynamics and Hydraulic Constructions (HACH), based on the one-dimensional transient flow equations applied to a pseudo-fluid. The amount of free air is a function of the instantaneous pressure inside the joint and has been accounted for by means of appropriate celerity-pressure relationships. These relationships are defined by the ideal gas law and Henry’s law and were optimised by means of a genetic algorithm optimisation technique. Very good agreement has been obtained between the measured and computed pressures at the end location of one-dimensional closed-end rock joints. [less ▲]

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See detailQuantitative Micro-Imaging of Building Materials : from reality to dream
Pirard, Eric ULg; CSTC

in La microscopie appliquée aux matériaux de construction (2002)

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See detailApplication of the fast multipole method to the 2D finite element-boundary element analysis of electromechanical devices
V Sabariego, Ruth ULg; Gyselinck, J.; Geuzaine, Christophe ULg et al

in Proceedings of the 10th International Symposium on Numerical Field Calculation in Electrical Engineering (IGTE 2002) (2002)

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See detailRecent advances in bovine pneumology
Lekeux, Pierre ULg; Borceux, J.; Boutet, Philippe ULg et al

in Kaske, Martin; Scholz, Henner; Höltershinken, Martin (Eds.) Recent developments and perspectives in bovine medicine (2002)

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See detailAutour d'Henri Bles : le Maître des disciples d'Emmaüs de Liège. Analyses technologiques du Paysage avec les disciples d'Emmaüs (Liège, Musée d'art religieux et d'art mosan)
Oger, Cécile ULg

in Toussaint, Jacques (Ed.) Actes du Colloque organisé dans le cadre de l'exposition : Autour de Henri Bles (2002)

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See detailDesign and tests for the heliospheric imager of the STEREO mission
Defise, Jean-Marc ULg; Halain, Jean-Philippe ULg; Mazy, Emmanuel ULg et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2002)

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

The Heliospheric Imager (HI) is part of the SECCHI suite of instruments on-board the two STEREO spacecrafts to be launched in 2005. The two HI instruments will provide stereographic image pairs of solar coronal plasma and coronal mass ejections (CME) over a wide field of view (~90°), ranging from 13 to 330 R[SUB]0[/SUB]. These observations compliment the 15 R[SUB]0[/SUB] field of view of the solar corona obtained by the other SECCHI instruments (2 coronagraphs and an EUV imager). The key challenge of the instrument design is the rejection of the solar disk light, with total straylight attenuation of the order of 10[SUP]-13 [/SUP]to 10[SUP]-15[/SUP]. A multi-vane diffractive baffle system has been theoretically optimized to achieve the lower requirement (10[SUP]-13[/SUP] for HI-1) and is combined with a secondary baffling system to reach the 10[SUP]-15[/SUP] rejection performance in the second camera system (HI-2). This paper presents the last updates of the SECCHI/HI design concept, with the expected performance. A verification program is currently in progress. The on-going stray-light verification tests are discussed. A set of tests has been conducted in air, and under vacuum. The results are presented and compared with the expected theoretical data. [less ▲]

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See detailHypercalcaemia of parathyroid carcinoma controlled by immunotherapy
Mead, G. P.; Harvey, T.; Epstein, M. et al

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

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See detailHyperthyroïdie sur Amiodarone : études complémentaires, traitement et suivi de 32 cas
Valdes Socin, Hernan Gonzalo ULg; Leisteidt, S.; Betea, Daniela ULg et al

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

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See detailAcceleration of finite element analysis by parallel processing
Moto Mpong, S.; de Montleau, P.; Godinas, A. et al

in Pietrzyk, M.; Mitura, Z.; Kaczmar, J. (Eds.) Proceedings of the 5th international ESAFORM Conference on Material Forming (2002)

The finite element code LAGAMINE developed since 1982 has been adapted to numerous finite elements and constitutive laws. The present researches on micro-macro modelling increase the requirement of CPU ... [more ▼]

The finite element code LAGAMINE developed since 1982 has been adapted to numerous finite elements and constitutive laws. The present researches on micro-macro modelling increase the requirement of CPU time. The parallelization of software is often divided into two main approaches: the coarse grain approach and the fine grain approach. For Finite Element software, the coarse grain method is usually characterized by the use of the mesh partitioning. In the fine grain approach, there is no partition of the mesh. The parallel program is made by the parallelization of instructions issued of the nalysis of dependences between the instructions, and the loops. The efficiency of all these approaches depends on the organization of the memory and on the used exchange protocol (MPI, PVM, or OpenMP). Our approach is intermediate between these two main categories of parallelization. It is characterized by the parallelization of the assembly of the stiffness matrix using a coarse grain approach and the use of a parallel direct solver. Because of the architecture of the available parallel computers, which are shared memory, we decided to use OpenMP protocol. [less ▲]

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See detailOn Deriving a Hybrid Model for Carbohydrate Uptake in Escherichia Coli
Bullinger, Eric ULg; Sauter, T.; Allgöwer, F. et al

in Proc. 15th IFAC World Congress (2002)

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See detailSituation actuelle de la qualité des sols et des eaux dans le périmètre irrgué des Doukkala (Maroc)
Rahoui, M.; Soudi, B.; Badraoui, M. et al

in Actes du séminaire de Rabat (2002)

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See detailThe assessment of third metacarpal bone speed of sound measurements in young exercising thorougbreds
Carstanjen, B; Langlois, P; Detilleux, Johann ULg et al

in Proceedings of the European Society of the Veterinary Society (ESVOT) (2002)

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See detailInsert'Prof. Pour un dispositif de formation favorisant une insertion réussie dans la vie professionnelle
Beckers, Jacqueline ULg; Andrianne, Sabine; Bourguignon, Luc et al

in Actes du 2e congrès des chercheurs en éducation (2002)

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See detailHydro-mechanical behavior of fractures: 2D, F.E.M. modeling
Guiducci, Chiara; Pellegrino, Antonio; Radu, Jean-Pol ULg et al

in Auriault, J. L.; Geindreau, C.; Royer, P. (Eds.) Poromechanics II (2002)

A numerical approach for modeling the coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures and consequently the evolution of their hydraulic conductivity ... [more ▼]

A numerical approach for modeling the coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures and consequently the evolution of their hydraulic conductivity is an important subject in many petroleum related activities, mainly concerning the change of well productivity during the reservoir life. It is well known that the flow in the fractures is strongly controlled by the fracture apertures. Recent investigations on the distribution of the apertures in natural fractures suggest that the cubic law can, better than the Darcy law, predict the fluid flux through rough walled fractures as long as the appropriate average fracture aperture is used. A finite element code is developed to predict the influence that the stresses variation in the fracture has on the distributed hydraulic conductivity field. The proposed model combines the stochastic cubic law with a non-linear deformation function (hyperbolic) that is suggested to describe the stress-closure/opening curves of the joints and that allows to couple together the hydraulic and the mechanic fracture behavior. The relationships used and the validity of the present model are tested by means of the comparison between experimental data and numerical predictions (Bart 2000) in various bound-ary and loading conditions. Comparisons between the proposed new model and a no coupled one have also been performed. They show that the proposed coupled model allows for a more realistic description of the fracture behavior. [less ▲]

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See detailMemory for temporal context: Effects of aging and retrieval strategies
Bastin, Christine ULg; Van der Linden, Martial ULg

in Proceedings of the International Conference Binding in Human Memory: A neurocognitive approach (2002)

The purpose of the present study was to re-explore the effects of age on memory for temporal context, assessed by a list discrimination task. Contrary to previous studies, each list (with faces as stimuli ... [more ▼]

The purpose of the present study was to re-explore the effects of age on memory for temporal context, assessed by a list discrimination task. Contrary to previous studies, each list (with faces as stimuli) was associated with a different type of judgement (honesty versus intelligence rating). The results showed no age differences on this task when no particular retrieval strategy was induced. However, when participants were encouraged to retrieve the list of occurrence of the items by retrieving the type of judgement made at encoding, there was an age effect. Older adults’ performance was at chance, whereas younger adults had a good performance. Moreover, younger adults who reported using the strategy performed as well as younger adults who did not use it. These results will be discussed by reference to the distinction between automatic versus effortful encoding processes. [less ▲]

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See detailConstitutive modeling of chalk. Application to waterflooding
Charlier, Robert ULg; Collin, Frédéric ULg; Schroeder, Christian ULg et al

in Auriault, J. L.; Geindreau, C.; Royer, P. (Eds.) Poromechanics II (2002)

Subsidence of chalk oil reservoirs in North Sea is related to the chalk compaction induced by fluid depletion and by the water – chalk interaction. A constitutive model is developed in order to take into ... [more ▼]

Subsidence of chalk oil reservoirs in North Sea is related to the chalk compaction induced by fluid depletion and by the water – chalk interaction. A constitutive model is developed in order to take into account these two effects. It is based on frictional – cap elastoplasticity and on the Barcelona unsaturated soil model. Oil – water – chalk interaction is modeled through the suction variable. In a second step, viscous effects are added to the model. After implementation into a finite element code, these tools allow to simulate a waterflooding experiment on a chalk sample. The model appears to reproduce qualitatively and quantitatively the experimental results. [less ▲]

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See detailAtlas of MSW landfills and dumpsites in developing countries
Lardinois, M.; Hiligsmann, Serge ULg; Rodriguez, C. et al

in Kocasoy, G.; Atabarut, T.; Nuhoglu, I. (Eds.) Appropriate environmental and solid waste management and technologies for developing countries (2002)

This paper presents the results of a six-year experience in collecting data on landfills and dumpsites in developing countries. Information such as the position of a landfill, its size and the way it is ... [more ▼]

This paper presents the results of a six-year experience in collecting data on landfills and dumpsites in developing countries. Information such as the position of a landfill, its size and the way it is managed are gathered in a database. The characterisation of wastes is also performed. Finally the actions taken or to be taken on each site are summarized. The purpose of such a project is to keep in memory all the information available about the main landfills and dumpsites in developing countries. This allows the identification and the management of their negative impacts on the environment. Furthermore, this tool will be of first help to set up proper rehabilitation projects. At present time, information about 85 landfills from 13 countries has been collected. The main partners of this project are Tunisia, Haiti, Senegal, Burkina Faso and Cuba. Besides those factual partnerships, new collaboration projects are being discussed with other countries such as Guinea. This work has already received the positive support of people involved in waste management in West Africa. The Atlas of MSW landfills and dumpsites in developing countries is published on the Internet (http://www.ulg.ac.be/cwbi/index.htm). Thanks to the support of the IEPF (Institut de l'Energie et de l'Environnement de la Francophonie / Institute for Energy and Environment in French talking Countries; IEPF is a member of AIF), it will be entirely updated and diffused on a broad range. This includes development of a new relational database and Internet site and the edition of a paper version of the Atlas. [less ▲]

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See detailLa céramique tournée à dégraissant coquillier dans le nord-est de la Gaule
Deru, Xavier ULg

in Demarolle, Jeanne (Ed.) Histoire et céramologie en Gaule mosellane (SarLorLux) (2002)

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See detailSingle step synthesis of metal catalysts supported on porous carbon with controlled texture
Job, Nathalie ULg; Ferauche, Fabrice; Pirard, René ULg et al

in Studies in Surface Science and Catalysis (2002)

This paper presents an original preparation method of metal catalysts supported on carbon porous material [1]. Carbon porous materials can be synthesised by evaporative drying and pyrolysis of aqueous ... [more ▼]

This paper presents an original preparation method of metal catalysts supported on carbon porous material [1]. Carbon porous materials can be synthesised by evaporative drying and pyrolysis of aqueous resorcinol-formaldehyde gels whose operating, variables are correctly chosen. The porous texture of these materials is mainly controlled by the precursor solution pH. Texture analysis shows that it is possible to tailor the morphology of these materials : indeed, micro-macroporous, micro-mesoporous, microporous or non porous materials can be obtained by varying the pH value in a narrow pH interval. This texture control is slightly influenced by the introduction of a metal in the gel : the limits of the pH interval can slightly differ when a metal salt is added to the resorcinol-formaldehyde aqueous solution. Carbon supported nickel and palladium catalysts prepared by this method have proven to be active for ethylene hydrogenation. [less ▲]

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See detailSpatial and temporal variability of benthic fluxes and diagenetic pathways of organic matter in the north-western Black Sea
Friedrich, J.; Friedl, G.; Bondar, C. et al

in Proceedings of the Second International conference. Oceanography of the eastern Mediterranean and Black Sea. Similarities and differences of two interconnected basins, Zappeion international conference Centre (2002)

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See detailTexture analysis of cylindrical cup during deep-drawing process
Flores, Paulo; Duchene, Laurent ULg; Habraken, Anne ULg

in Yang, D. Y.; Oh, S. I.; Huh, H. (Eds.) et al Proceedings of the 5th international conference NUMISHEET 2002 (2002)

This paper presents the simulation of a deep-drawing process using three different constitutive laws: strain rate space yield locus description with an isotropic hardening law, strain rate space yield ... [more ▼]

This paper presents the simulation of a deep-drawing process using three different constitutive laws: strain rate space yield locus description with an isotropic hardening law, strain rate space yield locus description with a combined (isotropic and kinematic) hardening law, and stress space yield locus description with an isotropic hardening law. To take into consideration material anisotropy, the yield locus is computed from the crystallographic texture using Taylor's model, a dual plastic potantial and combined hardening law taking into account the dislocations microstructures. The results obtained by these three constitutive laws are compared with experimental ones. [less ▲]

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See detailNotes d'onomastique indo-iranienne ancienne
Swennen, Philippe ULg

in Questions et Connaissances (Actes du IVe congrès européen des études iraniennes organisé par la Societas Iranologica Europaea, Paris, 6-10 septembre 1999), Vol. I: La Période Ancienne. Tetxes réunis par Philip Huyse (2002)

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See detailA parallel computing model for the acceleration of a finite element software
Moto Mpong, Serge; de Montleau, Pierre; Godinas, André et al

in Arabnia, H. R. (Ed.) Proceedings of the International Conference on Parallel and Distributed Processing Techniques and Applications (2002)

This paper presents the parallelization model used for the non-linear finite element software LAGAMINE. The proposed model is based on the use of a coarse grain approach for the parallelization of the ... [more ▼]

This paper presents the parallelization model used for the non-linear finite element software LAGAMINE. The proposed model is based on the use of a coarse grain approach for the parallelization of the assembly of the stiffness matrix. For the solver of the generated linear problem, we used a parallel direct solver of Gauss type. Finally, we present a discussion of the results of our approach on an example of depp drawing. [less ▲]

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See detailSpectroscopic Monitoring of 10 Northern SPB Candidates
Mathias, P.; Le Contel, J*-M; Aerts, C. et al

in Radial and Nonradial Pulsations as Probes of Stellar Physics, ASP Conference Proceedings, Vol. 259. Edited by Conny Aerts, Timothy R. Bedding, and Jørgen Christensen-Dalsgaard. Also IAU Colloquium 185. San Francisco: Astronomical Society of the Pacific, 2002., p.266 (2002)

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See detailFinite element thermo-mechanical model of continuous steel casting
Pascon, Frédéric ULg; Habraken, Anne ULg

in Kiuchi, M.; Nishimura, H.; Yanagimoto, J. (Eds.) Proceedings of the 7th International Conference on Advanced Technology of Plasticity (2002)

Problems in continuous casting of steel are numerous and have been leading producers to find ever more efficient solutions. Wa have developed a thermomechanical model of continuous casting, using a non ... [more ▼]

Problems in continuous casting of steel are numerous and have been leading producers to find ever more efficient solutions. Wa have developed a thermomechanical model of continuous casting, using a non-linear finite element code. Since a complete 3D discretization seemed impossible, the model has been based on a generalized plane strain state (2D1/2) and it includes at the same time thermal exchanges, mechanical behaviour of steel at very high temperature, the ferrostatic pressure and contact between the strand and the machine. This paper presents some results of two industrial applications. First results tend to prove the importance of some process factors (such as the mould taper) and local defects of the machine on the quality of cast products, according with observations. [less ▲]

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See detailLe groupe de pâtes « savonneuses » des céramiques gallo-romaines du nord de la Gaule Belgique
Deru, Xavier ULg

in Rivet (Ed.) Actes de la Société française d’étude de la céramique en Gaule, Bayeux, 2002 (2002)

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See detailAnalysis of Geological Factors Involved In The Seismic Triggering of Landslides In Kyrgyzstan. Part A: Modelling Ofground Motion Dynamics
Havenith, Hans-Balder ULg; Vanini, M; Jongmans, D et al

in EGS General Assembly Conference Abstracts (2002)

Abstract: The destructive effects of amplified ground motions on hills or mountain crests came first to light by the analysis of structural damage distribution patterns related to strong earthquakes. In ... [more ▼]

Abstract: The destructive effects of amplified ground motions on hills or mountain crests came first to light by the analysis of structural damage distribution patterns related to strong earthquakes. In order to better understand the origin of these so-called topographical effects, many efforts were and are still spent on collecting experimental data and on numerical modelling. Much less attention has, however, been paid to the impact of topographical effects on ground failure, while links between the two are regularly reported. The following ... [less ▲]

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See detailPolymerization in Inverse Microemulsion: An Effective Tool to Produce Biodegradable and non Biodegradable Nanoparticles
Lebon, F; Grandfils, Christian ULg; Jérôme, Robert ULg et al

in Proceedings of Material Research Society (MRS) (2002)

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See detailLe prologue en blanc du Lancelot en prose
Combes, Annie ULg

in Baumgartner, Emmanuèle; Harf-Lancner, Laurence (Eds.) Seuils de l'œuvre dans le texte médiéval (2002)

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See detailEdición versus traducción: Victoria Ocampo en la literatura argentina
Willson, Patricia ULg

in Rodríguez, Beatriz (Ed.) Actas del III Congreso Latinoamericano de Traducción e Interpretación. De Babel a Internet (2002)

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See detailEffets de l’environnement proche sur la biodiversité entomologique en carottes de plein champ
Colignon, Pierre; Hastir, Pierre; Gaspar, Charles et al

in Annales de la 2ème Conférence Internationale sur les moyens alternatifs de lutte contre les organismes nuisibles aux végétaux (2002)

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See detailThe Slowly Pulsating B Star HD 147394
Briquet, Maryline ULg; Noels-Grötsch, Arlette ULg; Aerts, C. et al

in Aerts, Conny; Bedding, Timothy R.; Christensen-Dalsgaard, Jørgen (Eds.) RADIAL AND NONRADIAL PULSATIONS AS PROBES OF STELLAR PHYSICS (2002)

Not Available

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See detailEntomological diversity in agro-ecosystems : not necessarily an ecological desert
Francis, Frédéric ULg; Haubruge, Eric ULg; colignon, Pierre et al

in Bulletin de l’Institut Royal des Sciences naturelles de Belgique, Biologie, 72 : 153-154. (2002)

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See detailGaAs-based Quantum Cascade Lasers: design, fabrication and perspective.
Zanolli, Zeila ULg; Scamarcio, Gaetano; Rizzi, Francesco et al

(2002)

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See detailLinear and nonlinear thermal instability of a rotating saturated porous medium heated from below
Desaive, Thomas ULg; Hennenberg, M.; Lebon, Georgy ULg

in 1st international conference on applications of porous media (2002)

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See detailPregnancy-associated proteins isolated from ewe placenta.
El Amiri, B.; Remy, B.; Melo de Sousa, Noelita ULg et al

in Proceedings of the 18th Scientific Meeting of the European Embryo Transfer Association (2002)

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See detailA concrete beam finite element accounting for shear effects
Kaiser, F.; Degée, Hervé ULg

in Proceedings of the 3rd DIANA Conference - Finite Elements in Civil Engineering Applications (2002)

This paper aims at presenting a new beam finite element allowing to simulate the behaviour of structures made of concrete beam structural elements where shear can have a significant effect. An incre ... [more ▼]

This paper aims at presenting a new beam finite element allowing to simulate the behaviour of structures made of concrete beam structural elements where shear can have a significant effect. An incre-mental MCFT-based constitutive law (Modified Compression Field Theory) describes behaviour of concrete. Results obtained by using this element are compared with membrane models and tests results. [less ▲]

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See detailNitrogen budget on the shelf and slope area of the Back Sabasin as inferred from modeling experiments
Grégoire, Marilaure ULg; Beckers, Jean-Marie ULg; Friederich, J. et al

in Second International Conference on "Oceanography of the Eastern Mediterranean and Black Sea: Similarities and Differences of Two Interconnected Basins" (2002)

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See detailMesures agri-environnementales et biodiversité : effet des tournières enherbées sur les populations de syrphes en grandes cultures
Francis, Frédéric ULg; Devallée, Gilles; Terwagne, Sébastien et al

in 1. Annales de la 2ème Conférence Internationale sur les moyens alternatifs de lutte contre les organismes nuisibles aux végétaux (2002)

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See detailFamilial secreting-pinealomas : biological and preliminary genetic studies
Allouch, A.; Valdes Socin, Hernan Gonzalo ULg; Hendrick, J. C. et al

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

Introduction: Sporadic pinealomas are intracranial tumors which incidence account for less than 1/107. This is the second report of secretory familial pinealoma in a mother and sister. We report for the ... [more ▼]

Introduction: Sporadic pinealomas are intracranial tumors which incidence account for less than 1/107. This is the second report of secretory familial pinealoma in a mother and sister. We report for the first time neuroendocrine and preliminary genetic studies in these benign tumors. Methods and patients: Radioimmunoassay of urinary 6-sulphatoxymelatonin (a-MT6s) was performed in patients and in 90 control subjects aged 19-67 years. Samples were collected at 19-23 , 23-07 and 07-11 h. Endocrine studies including PRL, TSH, LH, FSH, ACTH, IGF1 and tumoral markers (bHCG, NSE, CEA) levels were measured. Lymphocytes caryotype was determined by CGH. Pituitary and pineal MRI were done in both patients. Results: The daughter was the index case. Diagnosis was done because of headaches. Pineal MRI showed a 17 x 14x 25 mm cystic lesion with gadolinium enhancement and no ventricular dilatation. Circadian rhythm of urinary a-MT6s was present but a-MT6s levels were clearly elevated compared to age-matched controls: 1455 ng/h at 19-23hs (308  261), 6012 ng/h at 23-07hs (1423753) and 3280 ng/h at 07-11hs (579340). The 55 years-old mother reported similar complaints during the daughter's follow-up. A pineal MRI identified a 18 x 20 x 14 mm cystic lesion. There were no signs of intracranial hypertension. None of the women reported sleep disturbances. Circadian rhythm of urinary a-MT6s was lost but a-MT6S levels were clearly elevated : 2380 ng/h at 19-23hs (173  153), 2812 ng/h at 23-07hs (768486) and 1897 ng/h at 07-11hs (480383). Endocrine studies and tumoral markers were in the normal range. No chromosomal abnormalities were found in both women (46,XX). Discussion: Due to the rare occurrence of sporadic pinealomas it is unlikely that such a tumor afflict two members in the same family. Although no histological proof was obtained in our patients, radiological findings and tumoral hypersecretion of melatonin derivated a-MT6s clearly suggest the pineal origin of these tumors. We suggest an autosomal dominant form of transmission with incomplete dominance as the most probable model of inheritance of familial pinealoma. [less ▲]

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See detailLogique et limites de terroir, une perspective sociologique de la production à la consommation
Stassart, Pierre M ULg

in Actes de la journée d'étude BAMST, les produits de viande, les enjeux de la qualité (2002)

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See detailReliability of transport models calibrated on field tracer experiments: breakthrough curve sensitivity to tracer injection conditions
Brouyère, Serge ULg; Dassargues, Alain ULg

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

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

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

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See detailA Combined Optical/Digital SAR Processor for Quicklook Applications
Litovchenko, Konstantin Ts.; Lemaire, Philippe; Barbier, Christian ULg

in Proc. EUSAR'02 Conference (2002)

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See detailSyncopes, taches, détails : James Williamson et le collage
Belloi, Livio ULg

in Gaudreault, André (Ed.) Arrêt sur image, fragmentation du temps : aux sources de la culture visuelle moderne/Stop Motion, Fragmentation of Time : Exploring the Roots of Modern Visual Culture (2002)

A detailed analysis of James Williamson's techniques of splicing, through two of the filmmaker's most important films : "Fire !" (1901) and "Stop Thief !" (1901). Etude des procédés de collage mis en ... [more ▼]

A detailed analysis of James Williamson's techniques of splicing, through two of the filmmaker's most important films : "Fire !" (1901) and "Stop Thief !" (1901). Etude des procédés de collage mis en œuvre par James Williamson dans deux de ses films les plus importants : "Fire !" (1901) et "Stop Thief !" (1901). [less ▲]

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See detailAn Overview of Paul Smeyers' Career
Noels-Grötsch, Arlette ULg; Bedding, Timothy R; Christensen-Dalsgaard, Jørgen

in Aerts, Conny (Ed.) Radial and nonradial pulsations as probes of stellar physics : IAU 185th coloquium (2002)

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See detailLes effets du transfert d'entreprise
Kefer, Fabienne ULg

in Rendez-vous sociaux de l'UCM (2002)

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See detailRégénération de Phaseolus vulgaris L. et P. polyanthus Greenm. à partir d'embryons immatures en vue de leur hybridation interspécifique
Toussaint, André ULg; Geerts, P.; Clément, F. et al

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

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See detailDesign of a linear transverse flux actuator
Vande Sande, Hans; Deliège, Geoffrey ULg; Hameyer, Kay et al

in 15th International conference on electrical machines (ICEM), n°152, Brugge, Belgium, August 25-28, 2002 (2002)

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See detailAccords collectifs et individuels de travail en droit du travail
Kefer, Fabienne ULg; Clesse, Jacques ULg; Vielle, Pascale

in Rapports belges au congrès de l'académie internationale de Droit comparé à Brisbane (2002)

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See detailImportance of pedogenic factors in the spatial distribution of some soil properties in the Belgian loess belt: some loess-substratum contacts.
Colinet, Gilles ULg; Lacroix, Daniel; Bock, Laurent ULg

in Degryse, Patrick; Sintubin, Manuel (Eds.) Contributions to the Geology of Belgium and Northwest Europe. Proceedings of the first Geologica Belgica International Meeting (2002)

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See detailDeterministic and stochastic modelling for protection zone delineation
Rentier, Céline; Dassargues, Alain ULg

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

Protection zones delimited by isochrones are often computed using calibrated groundwater flow and transport models. In heterogeneous formations, all direct (hard) and indirect (soft) data must be used ... [more ▼]

Protection zones delimited by isochrones are often computed using calibrated groundwater flow and transport models. In heterogeneous formations, all direct (hard) and indirect (soft) data must be used optimally. Approaches involving in situ pumping and tracer tests, combined with geophysical and/or other geological observations, should be developed. In a deterministic framework, the calibrated model is considered to be the best representation of reality at the current investigation stage, but uncertainty of the results is not quantified. Using stochastic methods, a range of equally likely isochrones can be produced, allowing us to quantify the influence of our knowledge on the aquifer parameters on protection-zone uncertainty. Furthermore, integration of soft data in a conditioned stochastic generation process, possibly associated with an inverse modelling procedure, can reduce the resulting uncertainty. Proposed is a stochastic methodology for protection-zone delineation, integrating hydraulic conductivity measurements (hard data), head observations and electrical resistivity data (soft data). [less ▲]

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See detailMathematical symbolism : a feature responsible for superficial approaches ?
Fagnant, Annick ULg

in Cockburn, A. D.; Nordi, E. (Eds.) Proceedings of the 26th annual conference of the international group for the psychology of mathematics education (2002)

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See detailNumerical modeling of hydro-mechanical fracture behavior
Guiducci, Chiara; Pellegrino, Antonio; Radu, Jean-Pol ULg et al

in Pande, G. N.; Pietruszczak, S. (Eds.) Numerical models in Geomechanics (2002)

A numerical approach for modeling coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures is important in many engineering areas of practical interest such as ... [more ▼]

A numerical approach for modeling coupled hydro-mechanical fracture behavior is proposed. The movement of fluids through rock fractures is important in many engineering areas of practical interest such as those ones of petroleum and mining engineering. In that context, one of the most investigated and complex subjects is the effect on well productivity due to changes in hydraulic conductivity both on the matrix rock and on its main fractures. It is well known, that these flow characteristics are strongly controlled by fracture apertures. Recent investigations on the distribution of the apertures in natural fractures suggest that the cubic law can, better than the Darcy law, predict the fluid flux through rough walled fractures as long as the appropriate average fracture aperture is used. A finite element code is developed to predict the influence that the stresses variation in the soil has on the distributed hydraulic conductivity field. The proposed model combines the stochastic cubic law with a non-linear deformation function (hyperbolic) that is suggested to describe the stress-closure/opening curves of the joints and that allows to couple together the hydraulic and the mechanic fracture behavior. The relationships used and the validity of the present model are tested through comparison between experimental data and numerical predictions (Bart 2000) in various boundary and loading conditions. Comparison between the Darcy model governing fluid flow equation and linear stress-closure/opening relation has also been performed showing the differences and the better de-scription given by the proposed new model. [less ▲]

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See detail3D finite element computation of a linear transverse flux actuator
Deliège, Geoffrey ULg; Vande Sande, Hans; Hameyer, Kay et al

in International conference on Power electronics, machines and drives, Bath, UK, April 16-18, 2002 (2002)

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See detailLe consommateur et les produits du terroir
Burny, Philippe ULg

in Duquesne, Anne-Marie (Ed.) Saveurs et produits de terroir : un voyage de santé ? Actes du colloque international, 22 & 23 novembre 2001, Auditorium Campus CERIA, Bruxelles (2002)

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See detailThe Possible Use of VHR Satellite Images in the Public Agencies in Belgium: Brussels, Ghent & Liège from Space.
Binard, Marc ULg; Muller, Fabrice; Donnay, Jean-Paul ULg

in Maktav, Derya; Jürgens, Carsten; Erber Sunar, Filiz (Eds.) et al Proceedings of the 3d International Symposium of Remote Sensing of Urban Areas (2002)

The City promotion project aims at arousing the awareness and possible use of the Very High Resolution (VHR) satellite images in the public agencies and education sector. This project is presently ... [more ▼]

The City promotion project aims at arousing the awareness and possible use of the Very High Resolution (VHR) satellite images in the public agencies and education sector. This project is presently financed by the Belgian federal Office for Scientific, Technical and Cultural affairs (OSTC). Il this purpose, a poster has been prepared showing the three main towns in Belgium _ Brussels, Ghent and Liège - and a website has been devoted to the project. The core of the cities is represented by satellite maps at 1: 5 000 scale. Ikonos panchromatic and multispectral images are merged together in order to obtain coloured images at 1 m resolution able to render the urban fabric of these old cities. Moreover small excerpts at enlarged scale (1: 3 000) show typical places and building in panchromatic mode. The excerpt selected on the famous Brussels “Grand Place” is used to illustrate the fusion process between the panchromatic (1 m) and the multispectral (4 m) images. Two small scale insets present the regional context of these three towns thanks to a natural colour composite made of Landsat 7 ETM+ images on the one hand, and a classical physical map on the other hand. Various exploitations in the classroom of this poster, and others of the same kind, are suggested on the related website (http://www.geo.ulg.ac.be/eduweb). [less ▲]

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See detailDosages réalisables pour le diagnostic de gestation
Melo de Sousa, Noelita ULg; El Amiri, B.; Sulon, J. et al

in Journées Européennes de la Société Française de Buiatrie 2002 (2002)

Lorsque les signaux embryonnaires de la gestation induisent une modification du côté maternel, une possibilité nouvelle s’ouvre aux chercheurs attentifs au développement de tests pour le diagnostic ou le ... [more ▼]

Lorsque les signaux embryonnaires de la gestation induisent une modification du côté maternel, une possibilité nouvelle s’ouvre aux chercheurs attentifs au développement de tests pour le diagnostic ou le suivi de la gestation. Dans ce chapitre, nous essayerons de passer en revue les différentes molécules dont le dosage ou la mise en évidence a fait l’objet de publications scientifiques en relation avec le diagnostic de la gestation. Dans la mesure du possible, nous envisagerons les différents marqueurs en suivant la chronologie de leur apparition au cours de la gestation, mais ce critère ne prendra pas un caractère absolu car souvent plusieurs molécules se recouvrent, ou encore leur apparition au niveau de placenta précède largement le moment où elles apparaissent dans le sang maternel en quantités mesurables. Nous essayerons également, de connecter chaque molécule avec l’application que son dosage permet dans la clinique vétérinaire. Pour terminer, nous ferons une description rétrospective de quelques cas cliniques bien documentés qui montrent l’importance de l’association du dosage de protéines associées à la gestation et de la progestérone pour arriver à une meilleure compréhension des échecs observés dans le déroulement de la gestation. [less ▲]

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See detail3D h-phi finite element formulation for the computation of a linear transverse flux actuator
Deliège, Geoffrey ULg; Henrotte, François; Vande Sande, Hans et al

in 15th International conference on electrical machines (ICEM), Brugge, Belgium, August 25-28, 2002 (2002)

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See detailLethal white foal syndrome – Revue de la littérature à partir de 2 cas cliniques
Sandersen, Charlotte ULg; Delguste, Catherine ULg; Cassart, Dominique ULg et al

in Proceedings of the Annual meeting of the French Equine Veterinary Association (AVEF) (2002)

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See detailGénéalogie de la peinture de paysage au XVIe siècle
Allart, Dominique ULg

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

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See detailEvidence for a persistent and extensive greening trend in Eurasia inferred from satellite vegetation index data
Bogaert, Jan ULg; Zhou, L; Tucker, C J et al

in Do-Soon, Cho (Ed.) Proceedings of the VIII International Congress of Ecology (2002)

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

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See detailThe north-eastern Black Sea redox zone hydrochemical structure: observed concentrations and estimated fluxes
Yakushev, E.V.; Chasovnikov, V.K.; Debolskaya, E.I. et al

in Proceedings of the Second International conference. Oceanography of the eastern Mediterranean and Black Sea. Similarities and differences of two interconnected basins, Zappeion international conference Centre (2002)

The fine structure of the hydrophysical and hydrochemical parameters observed in the northeastern Black Sea during the 1999-2002 RV ”Akvanavt” cruises is discussed. The observed increase of organic ... [more ▼]

The fine structure of the hydrophysical and hydrochemical parameters observed in the northeastern Black Sea during the 1999-2002 RV ”Akvanavt” cruises is discussed. The observed increase of organic phosphorus and urea at the boundary of oxic and anoxic waters testify that the hydrochmical structure is significantly influenced by chemosynthesis. The calculated nitrogen compound fluxes support the idea that organic nitrogen can be the significant part of total nitrogen in the oxic/anoxic interface. [less ▲]

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See detailAnalytical study of the interaction between bending and axial force in bolted joints
Boissonnade, N.; Jaspart, Jean-Pierre ULg; Muzeau, J. P. et al

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

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See detailMulti-site quantitative ultrasound measurements of the third metacarpal bone in young thoroughbred horses
Carstanjen, B; Lepage, OM; Langlois, P et al

in Proceedings of the CESMAS congress 2002 (2002)

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See detailNF-kB activity, and IL-8 and GM-CSF expression, in the milk of chorionic mastitis-affected cows
Boulanger, Delphine; Bureau, Fabrice ULg; Lekeux, Pierre ULg

in National Mastitis Council Proceedings (2002)

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See detailForward observables at RHIC, the Tevatron Run II and the LHC
Cudell, Jean-René ULg; Ezhela, V. V.; Gauron, P. et al

in Fiore, R.; Jenkowszky, L. (Eds.) DIFFRACTION 2002, Interpretation of the New Diffractive Phenomena in Quantum Chromodynamics and in the S-Matrix Theory (2002)

We present predictions on the total cross sections and on the ratio of the real part to the imaginary part of the elastic amplitude (rho parameter) for present and future pp and pbar p colliders, and on ... [more ▼]

We present predictions on the total cross sections and on the ratio of the real part to the imaginary part of the elastic amplitude (rho parameter) for present and future pp and pbar p colliders, and on total cross sections for gamma p -> hadrons at cosmic-ray energies and for gamma gamma -> hadrons up to sqrt(s)=1 TeV. These predictions are based on a study of many possible analytic parametrisations and invoke the current hadronic dataset at t=0. The uncertainties on total cross sections, including the systematic theoretical errors, reach 1% at RHIC, 3% at the Tevatron, and 10% at the LHC, whereas those on the rho parameter are respectively 10%, 17%, and 26%. [less ▲]

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See detailA silvicultural decision support system for pure larch stands: helping managers to meet their goals.
Pauwels, D.; Lejeune, Philippe ULg; Balandier, P. et al

in Improvement of larch (Larix sp.) for better growth, stem form and woodquality. Proceedings of an International Symposium, Gap (Hautes-Alpes)- Auvergne & Limousin, France, 16-21 September, 2002. (2002)

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See detailOxygen Fluxes, Redox Processes and the Suboxic Zone in the Black Sea
Konovalov, S.; Murray, J.; Luther, G. et al

in International conference. Oceanography of the eastern Mediterranean and Black Sea. Similarities and differences of two interconnected basins, Zappeion international conference Centre (2002)

We use the results of numerical modeling, calibrated and verified againsthistorical data from 1960 to 1995 and the most recent data from the 2001 Knorr cruise,to investigate the redox budget of the Black ... [more ▼]

We use the results of numerical modeling, calibrated and verified againsthistorical data from 1960 to 1995 and the most recent data from the 2001 Knorr cruise,to investigate the redox budget of the Black Sea water column and the main processesgoverning this budget. The results can be summarized as follows: (1) Injection of Mediterranean water, through the Bosporus, into the Black Sea results in intrusions of oxygen in the suboxic and anoxic layers; (2) The intensity of ventilation of the CIL andthe export production of organic matter are the primary control on interannualvariations in the thickness of the suboxic zone; (3) The lateral influx of oxygen resultsin oxidation of sulfide inside the anoxic zone. Almost 70% of the total vertical flux of sulfide is oxidized by this oxygen, mainly through redox Mn(II) – Mn(III,IV) cycling;(4) Nitrate seams to be responsible for oxidation of dissolved Mn(II) in the suboxiczone and Mn(III,IV) hydroxides, the end-products of this oxidation, sink and oxidizeabout 25% of the total flux of sulfide; (5) The vertical flux of oxygen at the onset of sulfide may account for consumption of a small fraction (less than 1%) of the total fluxof sulfide; (6) The lateral flux of oxygen also appears to be the main reason for the presence of the suboxic layer. [less ▲]

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See detailEchos d’un chef-d’œuvre perdu de Pierre Bruegel l’Ancien. Les deux versions de la Chute d’Icare conservées à Bruxelles
Allart, Dominique ULg

in ICOM-CC 13th Triennal Meeting , Rio de Janeiro, 23-28/9/2002. Proceedings (2002)

La célébrissime Chute d'Icare des Musées royaux des Beaux-Arts de Belgique à Bruxelles est considérée comme l’une des œuvres majeures de Pierre Bruegel l'Ancien. Or son état matériel éveille la perplexité ... [more ▼]

La célébrissime Chute d'Icare des Musées royaux des Beaux-Arts de Belgique à Bruxelles est considérée comme l’une des œuvres majeures de Pierre Bruegel l'Ancien. Or son état matériel éveille la perplexité : l'œil exercé y repère des anomalies inquiétantes. Son examen technique a été entrepris avec la collaboration de l’IRPA (Bruxelles). L'étude au C14 de la toile du support et celle du dessin sous-jacent par réflectographie infrarouge invitent à y voir une copie réalisée à la fin du XVIe siècle ou au début du XVIIe, probablement d’après un original perdu de Bruegel. Une autre version de la composition est conservée à Bruxelles, au Musée Van Buuren. Injustement éclipsée par celle des Musées royaux des Beaux-Arts de Belgique, elle mérite d’être reconsidérée, même si elle n’est pas non plus due au pinceau de Bruegel. Peinte sur panneau, elle a été datée de la fin du XVIe siècle par dendrochronologie. [less ▲]

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See detailField study on the influence of calf pathologies on growth in Belgian Blue cattle
de Behr, V.; Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg et al

in Abstracts, XXII World Buiatrics Congress (2002)

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See detailDesign of a foil-coiled inductor for the heating of steel wires
De Coster, Jeroen; Deliège, Geoffrey ULg; Henrotte, François et al

in Computation in Electromagnetics, CEM 2002, Bournemouth, UK, 8-11 April, 2002 (2002)

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See detailEvolution of serum vitamine E concentration in horses living in a stable affected by equine motor neurone disease (EMND).
Delguste, Catherine ULg; de Moffarts, Brieuc; Sandersen, Charlotte ULg et al

in Proceedings of the 41st Annual Congress of the British Equine Veterinary Association (BEVA) (2002)

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