References of "2004"
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See detailLocalized failure in saturated porous media
Desrues, Jacques; Collin, Frédéric ULg

in Vermeer, Peter; Ehlers, W.; Herrmann, H. J. (Eds.) Modelling of Cohesive-Frictionl Materials (2004)

Strain localisation in soils and rocks has been studied extensively for the last 20 years. A part of these studies have been devoted to the response of specimens submitted to tests in undrained situation ... [more ▼]

Strain localisation in soils and rocks has been studied extensively for the last 20 years. A part of these studies have been devoted to the response of specimens submitted to tests in undrained situation. It was shown that shear banding can take place in both contractive and dilative specimens, with some special features due to the coupling between the granular skeleton and the pore fluid. In the paper, the relevance of the bifurcation criterion in shear band mode in the case of hydromechanical coupling is assessed by numerical study of the response of the constitutive model CLoE –the Hypoplastic model developed in L3S-Grenoble– in two kinds of numerical integration: local, i.e. at the material point level and global, i.e. in boundary value problems analyzed by finite elements. [less ▲]

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See detailThe Role of Nonlocality in the Pinning Properties of Borocarbides Materials
Silhanek, Alejandro ULg; Thompson, J.R.; Civale, L. et al

in Martins, Barry P. (Ed.) Frontiers in Superconductivity Research (2004)

An experimental review on the influence of nonlocal electrodynamics in the vortex pinning properties of non-magnetic borocarbide superconductors is presented. We show that the pinning force density Fp ... [more ▼]

An experimental review on the influence of nonlocal electrodynamics in the vortex pinning properties of non-magnetic borocarbide superconductors is presented. We show that the pinning force density Fp exhibits a rich and complex anisotropic behavior that sharply contrast with the small mass anisotropy of these compounds. For magnetic fields H applied parallel to the crystallographic c-axis, the first order reorientation transition between two rhombic lattices manifests itself as a kink in Fp(H). For H⊥c-axis, a much larger Fp(H) and a slower relaxation rate is observed. In this field configuration, nonlocality induces a fourfold periodicity in Fp when H is rotated within the square basal plane. Unlike the out-of-plane anisotropy, which persists for increasing impurity levels, the in-plane fourfold anisotropy can be strongly suppressed by reducing the electronic mean free path. This result unambiguously demonstrate that the in-plane anisotropy is a consequence of nonlocal effects. [less ▲]

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See detailComment je traite.... la colonisation bactérienne critique d'un ulcère de jambe. Le Yin et le Yang des pansements argentiques.
Pierard, Claudine ULg; Quatresooz, Pascale ULg; Paquet, Philippe ULg et al

in Revue Médicale de Liège (2004), 59(6), 403-6

The critical bacterial colonizaion of leg ulcers can impair their healing rate, aggravate the patient discomfort and increase the medical and nursing costs. In recent times, the dressings designed for leg ... [more ▼]

The critical bacterial colonizaion of leg ulcers can impair their healing rate, aggravate the patient discomfort and increase the medical and nursing costs. In recent times, the dressings designed for leg ulcers have followed a pace of conceptual revolution. Some of them are now offered containing an antiseptic of the silver salt family. The silver concentraton delivered into the wound bed is important to consider when assessing treatment efficacy. The diversity of the silver-based dressings currently on the European market is as large as their differences in activity. Only a minority of these dressings adequately control the wound biocenosis. Their cost which is high for the patient, must be compared to that of nursing care that may become less important. The expected beneficit is a reduction in healing time. [less ▲]

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See detailLa piroplasmose: une réalité belge ?
Mantran, A; Votion, Dominique ULg; Amory, Hélène ULg

in Proceedings of the 21th Annual Congress of the Belgian Equine Practitioners Society (BEPS) (2004)

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See detailPart 2: Functional effects of restrictive pulmonary diseases
Art, Tatiana ULg; Lekeux, Pierre ULg

in Dunlop, Robert H; Malbert, Charles-Henri (Eds.) Veterinary Pathophysiology (2004)

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See detailRecovering missing data in satellite images. An application to adriatic sst and comparison with in situ data
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Rixen, M. et al

Conference (2004)

Satellite images are very useful for many applications in oceanography and other environmental sciences. They offer a great coverage both in time and space, not attained by in situ measurements. Clouds ... [more ▼]

Satellite images are very useful for many applications in oceanography and other environmental sciences. They offer a great coverage both in time and space, not attained by in situ measurements. Clouds are responsible for missing data on images provided by receptors working in the visible and IR range receptors. In some seasons the cloud coverage can reach an important percentage. Many data analysis techniques do not need a total coverage, although it is always desirable. Some applications, such as Empirical Orthogonal Function (EOF) analysis, or wavelet decomposition need a complete set of data, and a technique for recovering these missing data is indispensable. In this work we present DINEOF (Data INterpolating Empirical Orthogonal Functions), a method for the reconstruction of satellite data, based on an EOF decomposition. DINEOF reconstructs the missing data from an optimal set of EOFs. The optimal number of EOFs is determined by cross-validation. This method has shown to obtain robust results. DINEOF has been applied to a series of 105 AVHRR SST images of the Adriatic Sea, in a period ranging from May to October 1995. The mean cloud coverage of this data set is 52%. The error obtained by the cross-validation is of 0.6°C, and a total of 10 EOFs were necessary to reconstruct the data. A comparison with in situ data obtained form the MEDAR/Medatlas database is made. A total of 452 stations are examined. The RMS error between MEDAR/Medatlas and the reconstructed data is of 0.95°C. The error between MEDAR/Medatlas data and the points that are not missing in the Adriatic data set is of 0.67°C, which can be considered as the inherent error between the in situ and remote sensed data sets. [less ▲]

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See detailHistology and physiology of skin aging
Quatresooz, Pascale ULg

Conference (2004)

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See detailCartography and Land Use change of world heritage areas and the benefits of remote sensing and GIS for conservation and monitoring world heritage sites
De Maeyer, Philippe; Bogaert, Peter; De Man, Joris et al

in Goossens, Rudi (Ed.) Remote Sensing in Transition (2004)

Remote sensing has been widely used within various fields, with environmental applications being the most widespread. Through the joint effort of UNESCO, OSTC Belgium, Geography Dept, Ghent University and ... [more ▼]

Remote sensing has been widely used within various fields, with environmental applications being the most widespread. Through the joint effort of UNESCO, OSTC Belgium, Geography Dept, Ghent University and Labo SURFACES of Geomatic Dept, Liege University, a demo project to conserve five world Heritage sites was launched. The remote sensing and Geographic Information Systems (GIS) project attempted to provide basic cartography of the world heritage sites and also detect land use changes in and around the sites in the past ten years. A final contribution towards the conservation and monitoring of the world Heritage sites was made through this project. To fulfil the objectives of this project an internet site was created to provide information to a wider public audience. This raises awareness of not only the location and status of the selected Heritage sites, but also contributes to an improved information base leading to the sustainable management of these sites. [less ▲]

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See detailNouvelles recherches dans l'enceinte de la Schola du Trajan à Ostie
Morard, Thomas ULg

in Revue Archeologique (2004), XXXIV(2002-2003), 204-209

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See detailStructure of liquid Te-based alloys used in rewritable DVDs
Delheusy, M.; Raty, Jean-Yves ULg; Detemple, R. et al

in Physica B: Condensed Matter (2004), 350(1-3 SUPPL. 1), 1055-1057

We analyze the structure of Te-based chalcogenide compounds that are used as materials for rewritable DVDs by using a combination of neutron diffraction and ab initio computer simulation. We show that in ... [more ▼]

We analyze the structure of Te-based chalcogenide compounds that are used as materials for rewritable DVDs by using a combination of neutron diffraction and ab initio computer simulation. We show that in the liquid, the atoms have a low average coordination number, as the result of a Peierls distortion. The partial pair correlation functions are obtained from the computer simulation data. © 2004 Published by Elsevier B.V. [less ▲]

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See detailPotential valorization for the finest particles of Automotive Shredder Residue (ASR) as filler in bituminous concrete
Bareel, Pierre-Francois; Courard, Luc ULg; Bastin, David ULg et al

in Proceedings of REWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology (2004)

Car manufacturers are faced with increasingly severe European regulations concerning End of Live Vehicles (ELV) recycling. Issues for the coarse fractions of Automotive Shredder Residue (ASR) are now ... [more ▼]

Car manufacturers are faced with increasingly severe European regulations concerning End of Live Vehicles (ELV) recycling. Issues for the coarse fractions of Automotive Shredder Residue (ASR) are now quite largely studied. However, the European objectives could only be achieved by considering the processing and valorization of the fine ASR fraction (< 2mm) which usually represents 5 to 10 wt.% of shredded ELV. A laboratory study was carried out on the fine ASR fraction. By combining granulometric, gravimetric and magnetic separations, four valorizable fractions were identified. This paper presents the valorization of the finest fraction (< 250 μm) as filler in bituminous concrete. Physical and chemical properties were first determined. Bituminous concrete samples were then prepared with different substitution levels of calcareous filler by fine ASR. Marshall tests (mechanical properties) and leaching tests were performed without compromising results. [less ▲]

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

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

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See detailRéflexions didactiques sur la compréhension en lecture
Dumortier, Jean-Louis ULg

in Français 2000 (2004), 190-191

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See detailMiospores and the emergence of land plants
Steemans, Philippe ULg; Wellman, C. H.

in Webby, B.; Paris, F.; Droser, M.L. (Eds.) et al The Great Ordovician Biodiversification Event (2004)

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