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See detailAn elasto-viscoplastic model for forging steel at high temperatures
Charles, J.-F.; Habraken, Anne ULg; Lecomte-Beckers, Jacqueline ULg

in Proceedings of NUMIFORM 98, Simulation of Materials Processing : Theory, Methods and Applications (1998)

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See detailEffects of the interaction between habitat properties and disturbance characteristics on the interior/edge ratio.
Bogaert, Jan ULg; Verbeeck, A; Impens, I

in Farina, A (Ed.) Proceedings of the VII International Congress of Ecology (1998)

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See detailA Unified Radial Return Scheme for Visco-PLasticity and Lubricated Friction
Ponthot, Jean-Philippe ULg

in Proceedings of "First ESAFORM Conference on Material Forming (1998)

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See detailTowards improved evaluations of total ozone at the Jungfraujoch, using vertical profile estimations based on auxiliary data
De Mazière, Martine; Hennen, Olivier; Van Roozendael, Michel et al

in Proceedings of "The XXVIII Quadrennial Ozone Symposium", L’Aquila, Italy, September 12-21, 1996 (1998)

The currently available database of total ozone amounts observed at the Jungfraujoch site in the Swiss Alps starts in 1984, based on high-resolution infrared solar absorption spectroscopic measurements ... [more ▼]

The currently available database of total ozone amounts observed at the Jungfraujoch site in the Swiss Alps starts in 1984, based on high-resolution infrared solar absorption spectroscopic measurements, and has been complemented by daily SAOZ data since mid-1990. The latter instrument (Système d'Analyse par Observations Zénithales) measures the ozone column by application of the DOAS (Differential Optical Absorption Spectroscopy) method to zenith-sky scattered-light spectra in the ultraviolet-visible range, taken at twilight. The actual intercomparison for the overlapping period reveals a negative systematic offset of the FTIR with respect to the SAOZ data of 3.8 % on average, but showing a seasonal variation in the difference. Part of the observed difference probably originates in the model atmospheres that influence the retrieved column differently for each technique. This work shows the development of a climatological ozone vertical distribution model that is more representative of the real atmosphere, exploiting daily meteorological data that are commonly available at the Jungfraujoch site. It argues that the use of this climatological model may improve the accuracy of the retrieved total columns, and hence the agreement between the SAOZ and FTIR datasets; some possible improvements to the model are suggested. Application of this concept to a re-analysis of past observations, making use of existing meteorological long-term records, will enhance the validity of the ozone database at the Jungfraujoch. [less ▲]

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See detailGraphitization in chromium cast iron
Lecomte-Beckers, Jacqueline ULg; Terziev, L.; Breyer, J. P.

in Mechanical Working and Steel Processing Conference Proceedings (1998)

Some trials with graphite Hi-Cr iron rolls have been done mainly in Japan, for the rolling of stainless steel. This material could lead to good compromise between oxidation, wear and thermal behaviour. By ... [more ▼]

Some trials with graphite Hi-Cr iron rolls have been done mainly in Japan, for the rolling of stainless steel. This material could lead to good compromise between oxidation, wear and thermal behaviour. By using thermal analysis and resistometry, the conditions for secondary graphite formation have been studied. The amount and volume of free graphite may be strongly increased by a suitable heat treatment, allowing a good thermal conductivity as well as high wear and mechanical properties. [less ▲]

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See detailConfirmation of a 2.3-DAY Periodicity in the Wolf-Rayet Star WR 134: a Twin of EZ Cma?
Morel, Thierry ULg; Marchenko, S. V.; Eenens, P. R. J. et al

in Cyclical Variability in Stellar Winds (1998)

Not Available

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See detailContribution à l’étude des effets non antibiotiques des tétracyclines
Rompen, Eric ULg; Van Heusden, Alain ULg; Lauricella, Mariane

in Rompen, Eric; Van Heusden, Alain; Lauricella, Mariane (Eds.) Contribution à l’étude des effets non antibiotiques des tétracyclines (1998)

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See detailPractical protocol for large marine mammals necropsy and beach management
Jauniaux, Thierry ULg; Garcia Hartmann, M.; Coignoul, Freddy ULg

in meeting report (1998)

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See detailMutation analysis of the MEN1 gene in Belgian patients with multiple endocrine neoplasia type I and related diseases
Poncin, Jacques ULg; Abs, R.; Velkeniers, B. et al

in 5th Euroregional Oncology meeting - abstract book (1998)

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See detailMonitoring phenological stages of cultivated crops by remote sensing in Mali.
Diallo, Mamadou Adama; Tychon, Bernard ULg

in Ninth conference on satellite meteorology and oceanography, 25-29 may 1998, Unesco, Paris, France (1998)

This study shows some potentialities of remote sensing (10 daily NDVI) to assess phenological stages of rainfed crops in Mali.

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See detailThe 3nu3 bands of isotopic ozone 668 and 686
Chichery, A.; Barbe, Alain; Bourgeois, M.T. et al

in Atmospheric Spectroscopy Applications 1999 - Proceedings (1998)

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See detailLung scanning in calves using technegas
Votion, Dominique ULg; Coghe, J.; Lekeux, Pierre ULg

in Plügers Archives European Journal of Physiology (1998)

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See detailDifferential diagnosis of tachypnea in newborn calves : a field study
Rollin, Frédéric ULg; Dardenne, A; Danlois, F et al

in In Proceedings of the World Assoc. Buiatrics Congress (1998)

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See detailApplication of the component method to column bases
Wald, F.; Gresnigt, A. M.; Weynand, K. et al

in Proceedings of the COST C1 International Conference (1998)

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See detailStranding in Belgium
Jauniaux, Thierry ULg; Coignoul, Freddy ULg

in meeting report (1998)

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See detailA photometric method to study the Wolf-Rayet content of compact H II regions in nearby galaxies
Royer, P.; Vreux, Jean-Marie ULg; Manfroid, Jean ULg

in The Magellanic Clouds and Other Dwarf Galaxies (1998)

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See detailGround-based FTIR Measurements from a Series of European sites during the Winter of 1995/96 and a Comparison with a 3D Chemical Transport Model: Evidence of Chlorine Activation and Ozone depletion
Paton Walsh, C.; Bell, W.; Blumenstock, T. et al

in Harris, N. R. P.; Kilbane-Dawe, I.; Amanatidis, G.T. (Eds.) Polar stratospheric ozone 1997 (1998)

Fourier transform infra-red (FTIR) measurements of stratospheric trace species have been made at a network of five ground-based sites from 79°N to 47°N during the Northern hemisphere winter of 1995/1996 ... [more ▼]

Fourier transform infra-red (FTIR) measurements of stratospheric trace species have been made at a network of five ground-based sites from 79°N to 47°N during the Northern hemisphere winter of 1995/1996. This winter was extremely cold with temperatures below the threshold for type 1 polar stratospheric cloud (PSC) formation from mid December 1995 until early March 1996 when there was a rapid warming of the stratosphere. Over 25 days experienced temperatures low enough for ice cloud (PSC type 2) formation. Vertical columns values for HCl, ClONO2, HF and HNO3 have been derived from FTIR measurements at the following sites: Ny Alesund, Spitzbergen (79°N, 12°E); Kiruna, Sweden (67°N, 21°E); Harestua, Norway (60°N, 11°E); London, England (51°N, 0°E) and the Jungfraujoch, Switzerland (48°N, 8°E), with measurements of other stratospheric trace gases, including O3 and ClO available from some of the sites. All of these sites are equipped with high resolution Bruker 120HR or 120M spectrometers, recording atmospheric spectra in the mid infrared using the Sun as a source. These measurements have been used to provide both evidence of substantial activation within large areas of the polar vortex and a subsequent O3 depletion. The measurements suggest a well mixed central vortex area surrounded by a vortex edge that may be highly variable in composition. The measurements also provide evidence of substantial mixing of activated air from the edge of the polar vortex into middle latitudes. Comparison with the SLIMCAT 3D chemical transport model highlights the underestimation of ClONO2 concentrations in the model, with subsequent implications for underestimating O3 loss. [less ▲]

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See detailLa notion de « panthéon » chez Pausanias
Pirenne-Delforge, Vinciane ULg

in Pirenne-Delforge, Vinciane (Ed.) Les Panthéons des cités, des origines à la Périégèse de Pausanias (1998)

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See detailThermo-hydro-mechanical coupling in clay barriers
Collin, Frédéric ULg; Li, Xiang Ling; Charlier, Robert ULg et al

in Thimus, Jean-Francois; Abousleiman, Y.; Cheng, A. H. D. (Eds.) et al Poromechanics. A tribute to Maurice A. Biot (1998)

A complete thermo-hydro-mechanical model is presented to treat the complex coupling problems in the clay barrier. The formulation related to the heat transfer, moisture transfer (liquid water and water ... [more ▼]

A complete thermo-hydro-mechanical model is presented to treat the complex coupling problems in the clay barrier. The formulation related to the heat transfer, moisture transfer (liquid water and water vapour), air transfer in a deformable unsaturated soil is given. The formulation of the Alonso-Gens’s mechanical model for unsaturated soil is also incorporated. Finally, a small scale wetting – heating test on compacted bentonite is performed as a validation test. The numerical results are compared with respect to the experimental measurements. [less ▲]

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See detailThéorie et typographie : une synthèse des règles typographiques de la ponctuation
Purnelle, Gérald ULg

in Tilkin, Françoise; Defays, Jean-Marc; Rosier, Laurence (Eds.) « À qui appartient la ponctuation ? », Actes du colloque international et interdisciplinaire de Liège (13–15 mars 1997) (1998)

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See detailThe current budget of NOy above the Jungfraujoch as derived from IR solar observations
Demoulin, Philippe ULg; Mahieu, Emmanuel ULg; Zander, Rodolphe ULg et al

in Harris, N. R. P.; Kilbane-Dawe, I.; Amanatidis, G. T. (Eds.) Polar stratospheric ozone 1997 (1998)

This paper reports on an investigations of a series of compounds of the NOy family, based on high resolution infrared solar observations made at the ISSJ (International Scientific Station of the ... [more ▼]

This paper reports on an investigations of a series of compounds of the NOy family, based on high resolution infrared solar observations made at the ISSJ (International Scientific Station of the Jungfraujoch), Switzerland (46.55ºN, 7.99ºE, 3580 m a.s.l.). These observations are part of a long-term monitoring effort undertaken by the Liège group since the mid-1970s, and integrated more recently as a contribution to the Network for the Detection of Stratospheric Change (NDSC). Currently, vertical column abundances of over 20 molecules are retrieved from solar spectra recorded under clear sky conditions as regularly as possible, using two high resolution Fourier transform infrared (2 to 15 microns) spectrometers. [less ▲]

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See detailProlégomènes à une théorie unifiée de la temporalité en égyptien
Winand, Jean ULg

in Proceedings of the Seventh International Congress of Egyptologists (1998)

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See detailPonctuation et récit de paroles dans les éditions originales des contes de Voltaire
Tilkin, Françoise ULg

in Defays, Jean-Marc; Rosier, Laurence; Tilkin, Françoise (Eds.) A qui appartient la ponctuation ? Actes du Colloque international et interdisciplinaire de Liège (13-15 mars 1997) (1998)

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See detailPresurgical octreotide treatment in acromegaly
Stevenaert, Achille ULg; Beckers, Albert ULg

in 5th International Pituitary congress - abstract book (1998)

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See detailLa ponctuation avant la ponctuation. L’organisation du message écrit dans l’Égypte pharaonique
Winand, Jean ULg

in À qui appartient la ponctuation ? (1998)

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See detailObservations coupled to the overpasses of the polar vortex over mid-latitude Europe in winter 1995-1996
Hennen, Olivier; De Mazière, Martine; Van Roozendael, Michel et al

in Harris, N. R. P.; Kilbane-Dawe, I.; Amanatidis, G.T. (Eds.) Polar stratospheric ozone 1997 (1998)

The spring 1996 polar vortex was very deep and cold, with temperatures down to the ice formation threshold, and persisted until March. The northern hemisphere ozone decrease in winter 1995-1996 was larger ... [more ▼]

The spring 1996 polar vortex was very deep and cold, with temperatures down to the ice formation threshold, and persisted until March. The northern hemisphere ozone decrease in winter 1995-1996 was larger than ever before in the nineties. Particularly at the European mid-latitudes, transport of air masses from the polar vortex towards mid-latitudes had a noticeable impact on the stratospheric temperatures and composition. Such was not observed that clearly in the latest winter 1996-1997. In this work, signatures of polar vortex overpasses in spring 1996 at several European mid-latitude stations are indicated. Most significant events have been observed at these stations with a delay of one to four days, on the following days: 18-22/1, 14-20/2, 1-6/3, 29/3, 15-17/4. The focus here will be on the two events in March. [less ▲]

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See detailAn Efficient Implicit Scheme for the Treatment of Frictional Contact between Deformable Bodies
GRAILLET, D.; Ponthot, Jean-Philippe ULg

in Proceedings of "First ESAFORM Conference on Material Forming" (1998)

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See detailImpact of different environmental managements on spatial distribution of ventilation in COPD horses
Vandenput, Sandrina ULg; Rollin, Frédéric ULg; Votion, Dominique ULg et al

in Plügers Archives European Journal of Physiology (1998)

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See detailRadial Return Extension for the Numerical Simulation of Viscoplastic Processes
Ponthot, Jean-Philippe ULg

in Proceedings of “NUMIFORM'98, Simulation of Materials Processing: Theory, Methods and Applications (1998)

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See detailEvolution de l'agriculture wallonne au cours des vingt dernières années
Burny, Philippe ULg

in Association belge d'Economie Rurale (Ed.) Deuxième workshop pour économistes agricoles (1998)

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See detailGenesis and organisation of surface horizons of deserts soils. Influence on soil management and classification
Souirji, A.; Marcoen, Jean Marie ULg

in Genesis and organisation of surface horizons of deserts soils. Influence on soil management and classification (1998)

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See detailA simple adaptive observer for nonlinear systems
Bullinger, Eric ULg; Ilchmann, Achim; Allgöwer, Frank

in IFAC Nonlinear Control Systems Design, NOLCOS98 (1998)

We present a high-gain observer for nonlinear uniformly observable SISO systems for which the high-gain parameter is determined adaptively online. The adaptation scheme is simple and universal in the ... [more ▼]

We present a high-gain observer for nonlinear uniformly observable SISO systems for which the high-gain parameter is determined adaptively online. The adaptation scheme is simple and universal in the sense that it is independent of the system the observer is designed for. Unlike in an earlier approach, the gain is adapted continuously in the present paper. This further simplifies the adaptation law and also leads to lower values of the high-gain parameter. We prove that the observer output error becomes smaller than a user specified bound for large times and that the adaptation converges. The observer is applied to a generic bioreactor [less ▲]

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See detailEntre "rallonge" et "rupture", les constructions en cum postposées chez Tacite
Longrée, Dominique ULg

in Longrée, Dominique; Ternes, Charles-Marie (Eds.) Oratio soluta - Oratio numerosa : les mécanismes linguistiques de cohésion et de rupture dans la prose latine, Actes des 8es Rencontres scientifiques de Luxembourg, 1995 (1998)

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See detailSimulation of the annual plankton productivity cycle in the Black Sea with a 3D high resolution interdisciplinary model
Grégoire, Marilaure ULg; Beckers, Jean-Marie ULg; Nihoul, Jacques ULg et al

in Papailiou, K.D.; Tsahalis, D.; Periaux, J. (Eds.) et al Proceedings of the 4th European Computational Fluid Dynamics Conference (ECCOMAS) (1998)

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See detailVariatio", coordination et isofonctionnalité : l'exemple de Tacite
Longrée, Dominique ULg

in Garcia-Hernandez, Benjamin (Ed.) Estudios de Linguistica Latina, Actas del IX Coloquio Internacional de Linguistica Latina, Universidad Autonoma de Madrid, 14-18 de abril de 1997 (1998)

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See detailThermo-hydro-mechanical coupling in clay barriers
Li, Xian Ling; Collin, Frédéric ULg; Radu, Jean-Pol ULg et al

in Evangelista, Aldo; Picarelli, Luciano (Eds.) The Geotechnics of Hard soils, Soft Rocks (1998)

A complete thermo-hydro-mechanical model is presented to tackle the complex coupling problems encountered in clay barriers. A detailed formulation coupling the heat, moisture (liquid water and water ... [more ▼]

A complete thermo-hydro-mechanical model is presented to tackle the complex coupling problems encountered in clay barriers. A detailed formulation coupling the heat, moisture (liquid water and water vapour) and, air transfer in a deformable unsaturated soil is given. The formulation of the Alonso-Gens’s mechanical model for unsaturated soil is also incorporated. The sensitivity to some parameters and their determinations are analysed. Finally, a small scale wetting – heating test on compacted bentonite is performed for validation; the numerical results are compared to the experimental measurements. [less ▲]

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See detailLe burlesque et la question des genres
Defays, Jean-Marc ULg

in Bertrand, Dominique (Ed.) Poétiques du burlesque (1998)

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See detailThe Tribology of Valve Seals in Cryogenic Rocket Engines
de Lamotte, E.; Bozet, Jean-Luc ULg; Garcia Marirrodriga, C.

in 7th European Space Mechanisms and Tribology Symposium (1998)

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See detailPour une nouvelle donne entre linguistique, linguistique appliquée et didactique des langues étrangères (FLE) - exemple de la lecture
Defays, Jean-Marc ULg; Maréchal, Marielle ULg

in Spinger, Claude (Ed.) Actes du 2e Colloque de Linguistique Appliquée : "Les linguistiques appliquées et les Sciences du langage". (1998)

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See detailAn inventory of emerging innovation project in belgium, Typical and traditional products: rural effect and agro-industrial problems, Parma – Italy ,
Van Huylenbroeck, I.; Verhaegen, Ingrid; Collet, Eric et al

in Proceeding of the 52nnd Seminar of the EAAE (1998)

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See detailThe spectrum of MEN1 gene mutations in Belgian patients with MEN1 and related diseases
Poncin, Jacques ULg; Abs, R.; Velkeniers, B. et al

in The 5th International Pituitary congress - Abstract book (1998)

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See detailParametric definition of sandblasted and polished concrete surfaces
Courard, Luc ULg

in Sandrolini, Franco (Ed.) ICPIC 98 (1998)

A lot of considerations have been developed on the influence of surface roughness on the adherence of a repairing systems on a concrete support : sandblasting, hammering, hydroblasting, acid attacks,… ... [more ▼]

A lot of considerations have been developed on the influence of surface roughness on the adherence of a repairing systems on a concrete support : sandblasting, hammering, hydroblasting, acid attacks,… have been analysed by a lot of authors. This presentation gives a parametric interpretation of a sandblasted surface in comparison with a polished concrete. A stylus is walked along the surface to be analysed and the profile is continuously registered. The filtration of the electric signal is realised in order to separate waviness and roughness. The effect of the stylus/component profile contact on the validity of the measurement results is of prime importance. Profilometry and surfometry are mathematically described by statistical and amplitude parameters. The analysis of surfometry profiles let us to observe and quantify the shape regularity and the isotropic effect of sandblasting. The bearing ratio curves permit to quantify the volume of voids able to absorb the slurry or the repairing mortar applied on the support. The difference, between the two surface treatments is clearly quantified and related to adherence properties of some hydraulic binders. [less ▲]

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See detailEstimation of latent heat fluxes with a modified Jackson model applied to sparse vegetation : application to the hapex Sahel experiment
Tychon, Bernard ULg; Wollenweber, Gabriele

in Demarée, G.; Alexandre, J.; De Dapper, M. (Eds.) Proceedings of the International conference "Tropical climatology, meteorology and hydrology. In memoriam Franz Bultot" Brussels, 22-24 May, 1996 (1998)

The Jackson Model allows to estimate daily actual evaporation from the integrated daily net radiation and from the difference between surface temperature and air near-midday. Accepting a few assumptions ... [more ▼]

The Jackson Model allows to estimate daily actual evaporation from the integrated daily net radiation and from the difference between surface temperature and air near-midday. Accepting a few assumptions and after mathematical manipulations of the initial model, the daily evapotranspiration can be obtained if the near-midday instantaneous sensible heat fluxes and the daily and near midday net radiation are known. This paper focus on the estimation of the instantaneous sensible heat fluxes. Two approaches are used to estimate them : the first uses a classical approach which represents the surface with a homogeneous single layer. The second model approximates the surface with a double-layer. In the latter model, one layer represents the soil and herbaceous vegetation while the second layer is assumed to represent the foliage of trees or shrubs (high vegetation) depending on the site. Finally, this double-layer model is simplified to allow its use by remote sensors observations. These three models are compared with field measurements during the Hapex-Sahel 92 experiment in Niger. The results show that the classical one-layer model is unable to express the latent heat fluxes of this sparse vegetation while the two double-layer models appear promising and need further developments. [less ▲]

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See detailRecent Characteristic Budgets of Inorganic Chlorine and Fluorine above the Jungfraujoch Station
Mahieu, Emmanuel ULg; Zander, Rodolphe ULg; Mélen, Francine et al

in Harris, N. R. P.; Kilbane-Dawe, I.; Amanatidis, G.T. (Eds.) Proceedings of the 4th European Symposium on Polar Stratospheric Ozone 1997 (1998)

Within the frame of NDSC (Network for the Detection of Stratospheric Change)-related monitoring activities conducted at the International Scientific Station of the Jungfraujoch (Swiss Alps, 46.5°N, 8.0°E ... [more ▼]

Within the frame of NDSC (Network for the Detection of Stratospheric Change)-related monitoring activities conducted at the International Scientific Station of the Jungfraujoch (Swiss Alps, 46.5°N, 8.0°E, 3580 m a.s.l.), long-term investigations of the inorganic chlorine and fluorine budgets have been pursued during the last years. They are based on the analysis of high-resolution infrared solar spectra, recorded with grating and Fourier transform state-of-the-art spectrometers. Nonlinear least squares fittings of synthetic spectra to the observations are performed over selected intervals, encompassing characteristic absorptions of HCl, ClONO2, HF and COF2; this allows the retrieval of their total vertical column abundances above the Jungfraujoch and the evaluation of their budgets. [less ▲]

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See detailPerformance of Least Squares and Kalman Filter Algorithms for Orbit Determination Using Single- and Multi-Station Tracking of Geostationary Satellites (AAS 98-368)
Halain, Jean-Philippe ULg; Welter, T.; Francken, P. et al

in Spaceflight Dynamics 1998, Volume 100 Part 1, Advances in Astronautical Sciences (1998)

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See detailSélection assistée par marqueurs génétiques en spéculation laitière.
Parmentier, Isabelle; Renaville, Robert ULg; Gengler, Nicolas ULg et al

in 3° Carrefour des Productions Animales (1998)

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See detailLa traçabilité des viandes.
Portetelle, Daniel ULg; Renaville, Robert ULg

in 3° Carrefour des Productions Animales (1998)

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See detailEmpreintes génétiques et certification en production bovine.
Mortiaux, Frédéric; Renaville, Robert ULg; Peelman, Luc et al

in 3° Carrefour des Productions Animales (1998)

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See detailEconomical design of joints between welded slender profiles according to Eurocode 3
Braham, M.; Cerfontaine, F.; Jaspart, Jean-Pierre ULg

in Proceedings of the International Workshop on Trends and Developments in Buildings (1998)

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See detailStiffness design of column bases
Braham, M.; Jaspart, Jean-Pierre ULg

in Proceedings of the Second World Conference on Constructional Steel Design (1998)

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See detailGalanin modulates GH secretion in prepubertal male lambs.
Saleri, Roberta; Baratta, Mario; Renaville, Robert ULg et al

in IV European Congress of Endocrinology (1998)

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See detailEffects of management of nitrogen fertilizers and conversion of cropping soils in fallow on nitrate pollution studie of the springs of roodt (Nospelt, Luxembourg).
Weinzaepflen, Emmanuelle; Vander Borght, Paul ULg; Tychon, Bernard ULg

in Conference proceedings 3rd international conference on diffuse pollution (1998)

A management of nitrogen fertilizers and a conversion of cropping soil into fallow were developed to reduce the nitrate pollution of spring exploit to supply with drinking water the southwestern ... [more ▼]

A management of nitrogen fertilizers and a conversion of cropping soil into fallow were developed to reduce the nitrate pollution of spring exploit to supply with drinking water the southwestern Luxembourg. The methodological approach was based on in situ observations and includes a study of nitrates lost by leaching (measure of nitrogen profiles in experimental fields, use of vertical soil water cup ceramics) and study of the water quality of springs (measurements of nitrate concentrations). Since October 1995, the nitrate concentrations of polluted springs have been reduced by 25 mg l-1 due to the fallow and the reduction of nitrogen fertilizers. [less ▲]

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See detailInsuffisance hypophysaire et amaurose subaiguës causées par une pseudotumeur inflammatoire extensive du sinus sphénoïde
Hansen, Isabelle ULg; Petrossians, Patrick ULg; Flandroy, Pierre et al

in XVI Congrès de la Société Française d'Endocrinologie - Abstract book (1998)

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See detailGranulométrie et analyse de forme par voie optique en génie Civil
Nivart, Jean-François; Pirard, Eric ULg; PromOptica

(1998)

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See detailIGF-I and their binding proteins in growing horses
Gerin, Daniele; Messina, Maria; Renaville, Robert ULg et al

in 3° Internat. Conf. farm Anim. Endocrinol. (1998)

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See detailHydrometallurgy of precious metals - effects on the environment
Gaydardzhiev, Stoyan ULg

in Gallios and Matis (Ed.) Proceedings of a NATO-ASI, NATO-ASI Series 2, v. 43 (1998)

Factors which affect the release of toxic substabces to the environment during the hydrometallurgical processing of precious metals bearing ores are discussed. The environmental notions of the cyanidation ... [more ▼]

Factors which affect the release of toxic substabces to the environment during the hydrometallurgical processing of precious metals bearing ores are discussed. The environmental notions of the cyanidation process are presented together with a review about the work in the field of alternative gold lixiviants. [less ▲]

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See detailLes compétences métacognitives et la résolution des problèmes chez des adolescents de l'enseignement secondaire spécial de forme trois : étude exploratoire
Beckers, Jacqueline ULg; Puissant, Fanny

in Depover, Christian; Noël, Bernadette (Eds.) Approches plurielles de l'évaluation des compétences et des processus cognitifs : Actes du 12e colloque de l'ADMEE 1998, Université de Mons-Hainaut (1998)

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See detailConvergence of High Order Curl-Conforming Finite Elements
Geuzaine, Christophe ULg; Meys, B.; Dular, Patrick ULg et al

in Proceedings of the Eighth Biennal IEEE Conference on Electromagnetic Field Computation (1998)

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See detailSingle-strand conformation polymorphisms detected in lactoprotein genes from Algarvia goat breed. Association with quantitative traits.
Barracosa, Helena; Rodrigues, C. J.; Gomes, M. et al

in IV Iberian Congress on Biotechnology (1998)

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See detailHomologous radioimmunoassay for bovine insulin-like growth factor-binding protein-2 (IGFBP-2).
Vleurick, Lieve; Portetelle, Daniel ULg; Massart, Serge et al

in 3° Internat. Conf. farm Anim. Endocrinol. (1998)

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See detailEconomy studies of steel building frames with semi-rigid joints
Weynand, K.; Jaspart, Jean-Pierre ULg; Steenhuis, M.

in Proceedings of the Second World Conference on Constructional Steel Design (1998)

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See detailLa place de l’e post-tonique muet dans l’octosyllabe de quelques poètes
Purnelle, Gérald ULg

in Actes des 4es Journées Internationales d’Analyse Statistique des Données Textuelles, Nice, 19-21 février 1998 (1998)

This paper analyzes and compares octosyllabic verses by sixteen Belgian and French poets, ranging from Baudelaire and Hugo to Éluard and Perros, with a special emphasis on post-stress e's at the various ... [more ▼]

This paper analyzes and compares octosyllabic verses by sixteen Belgian and French poets, ranging from Baudelaire and Hugo to Éluard and Perros, with a special emphasis on post-stress e's at the various places this vowel can occupy. Even and odd syllables are confronted to determine whether some poets strive for, or avoid, an iambic scansion of their octosyllables. The study shows that six poets diverge significantly from the rest of the corpus, three of them through an especially high number of e's in even syllables, the others through a deficit at that same place and an overabundance at the 5th syllable. These observations allow us to distinguish between those poets who were able to perceive and design the octosyllable as a unit from those who, in order to compose it, needed to give it a binary rhythm or to allow for a median pause [less ▲]

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See detailApplication of zeolite minerals as an in-situ amendments for heavy metals polluted soils
Gaydardzhiev, Stoyan ULg; Atanasov, S.

in Pasamehmetoglu and Ozgenoglu (Ed.) Proceedings of SWEMP’98, International Symposium (1998)

Metal fixation from simulated rain water onto zeolite adsorbents has been studies using a column filtration mode. Further on, soil artificially contaminated with heavy metals have been brought into ... [more ▼]

Metal fixation from simulated rain water onto zeolite adsorbents has been studies using a column filtration mode. Further on, soil artificially contaminated with heavy metals have been brought into contact with the zeolites. The loaded adsorbents have been studied via IR spectroscopy wih the aim to reveal the predominant mechanism of metal uptake. [less ▲]

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See detailMise au point du dosage de l'insulin-like growth factor-binding protein-2 bovine (bIGFBP-2) par test immunofonctionnel
Massart, Serge; Renaville, Robert ULg; Parmentier, Isabelle et al

in 3° Carrefour des Productions Animales (1998)

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See detailAssessment of respiratory mechanics with impulse oscillometry in horses with upper and lower airway obstruction
Van Erck, Emmanuelle; Duvivier, D. H.; Art, Tatiana ULg et al

in Plügers Archives European Journal of Physiology (1998)

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See detailPit-1 polymorphisms and milk production parameters in italian-friesian bulls.
Parmentier, Isabelle; Gengler, Nicolas ULg; Mortiaux, Frédéric et al

in 3° Internat. Conf. farm Anim. Endocrinol. (1998)

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See detailNew approach for the detection of growth promotors residues in animal products
Scippo, Marie-Louise ULg; Helbo, Vincent; Degand, Guy ULg et al

in Third meeting on animal productions. Biotechnologies: society stake. Proceedings of the study day held in Gembloux (Belgium) the 28 January 1998 (1998)

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See detailA Quasi-Coulomb Model for Frictional Contact Interfaces
GARCIA-GARINO, C.; Ponthot, Jean-Philippe ULg; OLIVER, J.

in Idelsohn, S.; Onate; Dvorkin (Eds.) Proceedings of "World Congress on Computational Mechanics IV (1998)

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See detailNew developments in quantitative analysis and trace analysis in pharmaceutical matrices by FTIR
Otte, Xavier; Duvivier, France; Evrard, Brigitte ULg et al

in Proceedings de la journée de rencontre des jeunes chimistes mars 1998 (1998)

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See detailChairman's Overview: Joints in Steel and Composite Structures
Jaspart, Jean-Pierre ULg

in Proceedings of the COST C1 International Conference (1998)

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See detailMutation analysis of the MEN1 gene in Belgian patients with multiple endocrine neoplasia type I and related diseases
Poncin, Jacques ULg; Abs, R.; Velkeniers, B. et al

in IV european Congress of Endocrinology - Abstract book (1998)

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See detailEtude comparative de la technique du gaz-test, de la digestibilité de la matière organique par la cellulase et de la composition chimique d'Andropogon gayanus pour la prédiction de sa valeur énergétique et de son ingestibilité chez le mouton Peul-Peul.
Ndimubandi, Albéric; Dieng, Abdoulay; Fonck, Myriam et al

in 5èmes Rencontres autour de la Recherche sur les Ruminants, Paris, France, 2-3 décembre 1998 (1998)

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See detailNumerical processing of calculated echograms to derive stable room acoustics parameters
Embrechts, Jean-Jacques ULg

in Proceedings of the 104th Convention of the Audio Engineering Society, Convention paper nb. 4656 (1998)

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See detailAmendement de bassins versants dans les Ardennes belges: effets sur l'eau de percolation et l'eau à l'exutoire
Carnol, Monique ULg; Piret, André ULg; Requier, Marie-Christine ULg et al

in Santé et Biodiversité en Forêt Wallonne - Acte des Colloques (1998)

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See detailPotentiels d'application de deux souches de levures vis-à-vis des maladies de conservations des pommes
Jijakli, Haissam ULg; Grevesse, cathy; Lepoivre, Philippe ULg

in 1er colloque transnational sur les luttes biologique, integree, et raisonnee, le 21,22 et 23 janvier 1998 (1998)

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See detailThe St-Michel reconstruction-project in Liège : A morphological regulation case study
Teller, Jacques ULg; Dupagne, A.

in Proc. of COST Urban Civil Engineering - Action C4 Final Conference (1998)

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See detailOralité et comicité
Defays, Jean-Marc ULg

in Actes du XXI Congrès international de linguistique et de philologie romanes (1998)

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See detailNew Developments in Handling Stress Constraints in Optimal Material Distributions
Duysinx, Pierre ULg; Sigmund, Ole

in Proceedings of 7th AIAA/USAF/NASA/ISSMO symposium on Multidisciplinary Design Optimization (1998)

There is a general interest to consider stress constraints in topology optimization of continuum structures. By their very nature stress constraints are local constraints which result in large scale ... [more ▼]

There is a general interest to consider stress constraints in topology optimization of continuum structures. By their very nature stress constraints are local constraints which result in large scale optimization problems that are often expensive to solve. Here in order to reduce the computing the effort we explore an alternative technique based on equivalent global (that is integrated) constraints. We define two global stress constraints based on the p-norm and p-mean of the epsilon-relaxed overall stress criteria in the finite elements. We present a new formulation of the epsilon-relaxation technique which is better suited to topology optimization of continuum structures and which makes the relaxation process automatic. The "p-mean" and "p-norm" functions bound by lower and upper value the maximum value of the epsilon-relaxed overall stress criterion. Based on numerical experiments this study compares the global and the local constraint formulations. Even if the use of integrated constraints leads a reduction of the computing time by one or two orders of magnitude, they definitely give a weaker control of local stress level. This sometimes can lead to solutions that are a bit different. [less ▲]

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See detailL'enseignement en agrométéorologie pour les ressortissants des pays en voie de développement
Tonnard, Victor; Tychon, Bernard ULg

in Demarée, G.; Alexandre, J.; De Dapper, M. (Eds.) Proceedings of the International conference on "Tropical climatology, meteorology and hydrology. In memoriam Franz Bultot" Brussels, 22-24 May, 1996 (1998)

Depuis 1979, la Fondation Universitaire Luxembourgeoise (Arlon, Belgique) organise une formation en agrométéorologie. Cette formation s'adresse aux agronomes et météorologues de niveau universitaire des ... [more ▼]

Depuis 1979, la Fondation Universitaire Luxembourgeoise (Arlon, Belgique) organise une formation en agrométéorologie. Cette formation s'adresse aux agronomes et météorologues de niveau universitaire des pays en développement. Elle dure douze mois et est subsidiée par l'A.G.C.D., via l'O.M.M. qui propose les candidats. Les auteurs, responsables de cet enseignement, présentent la formation, en retracent l'évolution et en soulignent les originalités. [less ▲]

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See detailOverview of presurgical somatostatin analog treatment in acromegaly
Beckers, Albert ULg; Stevenaert, Achille ULg

in IV european Congress of Endocrinology - Abstract book (1998)

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See detailHydrodynamical and ecosystem modelling on an IBM SP/2 (part II)
Elmoussaoui, A.; Grégoire, Marilaure ULg; Nomérange, P. et al

in Procedings of the third annual MMARIE meeting (1998)

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See detailThe study of the TEC and its irregularities using a regional network of GPS stations
Warnant, René ULg

in Dow, John; Kouba, Jan; Springer, Tim (Eds.) Proceedings of the IGS 1998 Analysis Center Workshop (1998)

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See detailInfluence des régulations situées à l'interface du métabolisme et de la reproduction sur la folliculogenèse et la reprise des cycles en post-partum
Drion, Pierre ULg; Houtain, J. Y.; Drame, El Hadji Daour et al

(1998)

Le déroulement harmonieux de la sexualité de la femelle repose sur l'intégrité anatomique, histologique, biochimique et hormonale des structures ovariennes, hypothalamiques, hypophysaires et utérines ... [more ▼]

Le déroulement harmonieux de la sexualité de la femelle repose sur l'intégrité anatomique, histologique, biochimique et hormonale des structures ovariennes, hypothalamiques, hypophysaires et utérines impliquées, ainsi que sur le subtil dosage des différentes hormones et facteurs protéiques intervenant dans les régulations. La compréhension des mécanismes régulateurs - endocrines, autocrines et paracrines (voir cadre ci-dessous)- qui permettent l'alternance des phases de croissance folliculaire et lutéale constitue un prérequis indispensable à la maîtrise de la cyclicité de la femelle, à la gestion optimale d'un cheptel et plus particulièrement à l'optimisation du capital génétique qu'il représente pour l'éleveur. La présente synthèse vise à faire le point sur les connaissances actuelles relatives aux aspects morphologiques et aux mécanismes régulateurs de la formation des ovaires, de la folliculogenèse et de l'endocrinologie de l'activité ovarienne. [less ▲]

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See detailPhysiological adjustments to exercise in COPD horses
Art, Tatiana ULg; Lekeux, Pierre ULg

in Handbook and Abstract Booklet of 5th ICEEP (1998)

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See detailSpirometric and genetic evaluation of respiratory hardiness in beef calves
Bureau, Fabrice ULg; Lekeux, Pierre ULg

in Proceedings:10 th International Conference on Production Disease in Farm Animals (1998)

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See detailBreathing strategy in RAO horses during exercise
Art, Tatiana ULg; Votion, Dominique ULg

in Proceedings: WEAS 1998 (1998)

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See detailPotentialisation de l'activité somatotrope chez le porc par vaccination contre l'hormone de croissance.
Renaville, Robert ULg; Bertozzi, Carlo; Carelli et al

in 3° Carrefour des Productions Animales (1998)

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See detailLe double-jeu de la médiation esthétique et de la destination dans la déclaration épistolaire
Servais, Christine ULg

in Kerbrat-Orecchioni, Catherine (Ed.) La déclaration d'amour (1998)

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See detailL’éclairage public peut-il favoriser une réappropriation de l’espace urbain par les personnes âgées
Teller, Jacques ULg; Italiano, Patrick ULg

in Yerpes, Joel (Ed.) Actes du colloque La ville des vieux - Recherche sur une cité à humaniser (1998)

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See detailInterplay between the electronic and dynamical properties of barium titanate
Ghosez, Philippe ULg; Gonze, X.; Michenaud, J. P.

in Advanced in Computational Materials Science - II (1998)

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See detailModelization of Kirchhoff scattering by a sound ray algorithm
Embrechts, Jean-Jacques ULg

in Proceedings of the 16th International Congress on Acoustics (ICA) and 135th meeting of the Acoustical Soc. of America (ASA) - Volume 4 (1998)

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See detailApplication of the component method to steel joints
Steenhuis, M.; Jaspart, Jean-Pierre ULg; Gomes, F. et al

in Proceedings of the COST C1 International Conference (1998)

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See detailPARM : a project method based on reciprocal animations and multimedias
Jans, Véronique; Leclercq, Dieudonné ULg; Denis, Brigitte ULg et al

in Van Merrienboer, J. (Ed.) Instructional design for problem-based learning, Proceedings of the Third Workshop of the EARLI SIG Instructional Design, Maastricht, 26-27 juin 1998 (1998)

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See detailCharacterisation of the joint properties by means of the component method
Jaspart, Jean-Pierre ULg; Steenhuis, M.; Anderson, D.

in Proceedings of the COST C1 International Conference (1998)

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See detailConcilier droit coutumier et amenagement/conservation modernes. L'approche par les maitrises foncieres coutumieres.
Vermeulen, Cédric ULg

in Programme de recherche appliquee "Mise en place de ForetsCommunautaires en peripherie nord de la Reserve de Faune du Dja".Presentation des activites du programme a la Direction des Forets.Reunion interne du 9 avril 1998 (1998)

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