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See detailProcessing of Buvac iron ore
Bastin, David ULg; Lewis, Grégory

Report (2010)

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See detailProcessing of Carbon Fibers Reinforced Mg Matrix Composites Via Pre-infiltration with Al
Mertens, Anne ULg; Montrieux, Henri-Michel ULg; Halleux, Jacques et al

in Journal of Materials Engineering and Performance (2012), 21(5), 701-706

Mg-C composites offer a suitable alternative to Al alloys while allowing for a significant weight reduction, but their production can be impaired by the poor wettability of C substrates by Mg. In the ... [more ▼]

Mg-C composites offer a suitable alternative to Al alloys while allowing for a significant weight reduction, but their production can be impaired by the poor wettability of C substrates by Mg. In the present work, a new 'liquid' processing route has been investigated. By making use of the well-known effect of a pre-treatment of the C fibres with an aqueous solution of K2ZrF6 in favouring spontaneous wetting of C with Al, C yarns have been pre-impregnated with Al and the feasibility of further using them as reinforcements in Mg matrix composites has been assessed. More particularly, it has thus been shown that, under the thermal conditions involved in the process, C fibres did not suffer damage due to chemical reaction with Al, and also that special care should be taken in order to control the surface condition of the pre-infiltrated yarns. [less ▲]

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See detailProcessing of carbon fibers reinforced Mg matrix composites via pre-infiltration with Al
Mertens, Anne ULg; Lecomte-Beckers, Jacqueline ULg; Montrieux, Henri-Michel ULg et al

Conference (2011, September)

Mg matrix composites appear as suitable competitors to Al alloys for a wide number of applications, as they allow for a significant weight reduction while exhibiting potentially comparable mechanical ... [more ▼]

Mg matrix composites appear as suitable competitors to Al alloys for a wide number of applications, as they allow for a significant weight reduction while exhibiting potentially comparable mechanical properties. And a large variety of processing routes have already been considered for their production, including 'liquid state' processes such as squeeze casting. These techniques necessitate a very careful control of the wetting behaviour and of the possible interfacial reactions between the reinforcements and the molten metal, along with the solidification process. And this is more particularly true in the case of Mg matrix composites with carbon fibers reinforcements, as Mg alloys are known to exhibit a poor wetting behaviour on carbon substrates. [less ▲]

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See detailProcessing of linguisitic and musical dimensions contained in songs : effects of an expertise
Larrouy, Pauline ULg; Leybaert, Jacqueline; Kolinsky, Régine

Poster (2010, August)

Songs are universal in our lives and also offer an ecological material that links linguistic and musical information. It therefore provides a tool for observing the relationship between music and language ... [more ▼]

Songs are universal in our lives and also offer an ecological material that links linguistic and musical information. It therefore provides a tool for observing the relationship between music and language. To examine the specificity of language and music information processing in songs, we studied the influence of expertise (i.e. musicians or speech therapists) on the use of transitional probabilities (TPs) in learning an artificial language (AL) either spoken or sung. This type of implicit statistical learning is especially important in language development (Saffran, Aslin, & Newport, 1996). We used the paradigm designed by Schön, Boyer, Moreno, Besson, Peretz and Kolinsky (2008). These authors have demonstrated the benefit of structural and motivational proprieties of music contained in the song in the learning process of AL in individuals with no expertise. Compared to a spoken AL, learning was enhanced for a singing AL, especially when the TPs of musical and linguistic materials were congruent. Our results did not replicate those of this study in participants having no music expertise. However, an interaction occurred between the type of AL and expertise of the participants. Indeed, only music experts seemed to benefit from the congruence between the TPs of musical and linguistic materials in extracting TP-based linguistic units. On the opposite, experts in language seemed to be favoured by the incongruence between the TPs of linguistic and musical information. These results are discussed in relation to the notions of the specificity of processing of lyrics and tunes in songs. [less ▲]

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See detailProcessing of Ti alloys by additive manufacturing: a comparison of the microstructures obtained by laser cladding, selective laser melting and electron beam melting
Reginster, Sylvie ULg; Mertens, Anne ULg; Paydas, Hakan ULg et al

in Materials Science Forum (2013), 765

Additive manufacturing processes such as laser cladding (LC) or selective laser melting (SLM) appear very promising in view of an economic near-net-shape production – and also, in the case of LC, the ... [more ▼]

Additive manufacturing processes such as laser cladding (LC) or selective laser melting (SLM) appear very promising in view of an economic near-net-shape production – and also, in the case of LC, the restoration - of complex and (almost) fully dense parts from Ti alloys. Both techniques involve the melting of a metallic powder with a laser. In the SLM process, the metallic powder is deposited layer by layer in a powder bed and then molten locally according to the desired shape, whereas in LC, the metallic powder is directly projected onto a substrate through a nozzle coaxial with the laser beam. The present research aims at comparing Ti-6Al-4V samples processed by these two techniques with reference samples produced by electron beam melting (EBM), another well established additive manufacturing process (patented by Arcam AB Company) in which a powder bed is molten locally by means of an electron beam. In all three processes, the melt pool undergoes an ultrafast cooling and solidifies very rapidly once the beam has left the area, thus giving rise to strongly out-of-equilibrium microstructures. Yet, each one of these processes also has its own specificities e.g. in terms of scanning strategy and of working atmosphere (low vacuum vs. protective Ar flow). In the present work, the microstructures obtained by these three processes have been compared in details, with a particular attention for characteristics such as porosity, grain size, and the various phases present. Since epitaxial growth of the newly deposited layer on the material previously solidified has been shown [1, 2] to exert a strong influence on the microstructure and on the resulting mechanical properties, great care has been taken to study the microstructural anisotropy associated with each one of the three processes. [less ▲]

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See detailProcessing of X-ray tomographic images: a procedure adapted for the analysis of phase distribution in MellapakPlus 752.Y and Katapak-SP packings
Viva, Aurora; Aferka, Saïd ULg; Brunazzi, Elisabetta et al

in Flow Measurement & Instrumentation (2011), 22

We developed a simple practical methodology to face common problems encountered in the analysis of tomographic images to get quantitative information on phase distributions in gas liquid contacting ... [more ▼]

We developed a simple practical methodology to face common problems encountered in the analysis of tomographic images to get quantitative information on phase distributions in gas liquid contacting columns packed with complex metallic packings. In particular, the procedure (thresholding and normalisation) was developed and validated on images of geometrically well known Mellapak Plus 752 Y packings. The methodology was extended to images of Katapak-SP modular packings which are made of an alternation of Mellapak Plus 752 Y sheets and catalytic baskets. Global liquid hold-up, obtained by averaging tomographic results over the column height, were found in agreement with bed scale data measured on the same Mellapak Plus 752 Y and Katapak-SP (11 and 12) packings at a given liquid load. Moreover, gas-liquid interfacial area were calculated and reported to the installed geometric area. [less ▲]

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See detailProcessing samples of benthic marine diatoms from Mediterranean oligotrophic areas
Vermeulen, Simon ULg; Lepoint, Gilles ULg; Gobert, Sylvie ULg

in Journal of Applied Phycology (2012), 24

The processing of benthic diatoms is tedious and involves several potentially damaging steps for cells. Although the preservation of siliceous frustules is of paramount importance in the implementation of ... [more ▼]

The processing of benthic diatoms is tedious and involves several potentially damaging steps for cells. Although the preservation of siliceous frustules is of paramount importance in the implementation of biotic indices, only few studies quantified treatment-induced cell losses. We assumed that commonly used treatments may lead to mechanical (centrifugation, sedimentation, boiling, sonication and mounting in Naphrax) and chemical (cold H2O2 digestion) damages on diatoms. We analysed the potential adverse effects of these treatments and the cleaning efficiency of H2O2 and incineration in order to find out the most suitable technique to process lightly silicified Mediterranean populations. Results showed that successive resuspensions of material after each concentration treatment (sedimentation and centrifugation) and low speed centrifugation did not alter the physical integrity of frustules. In contrast, boiling and sonication exhibited adverse effects especially on the preservation of large frustules and Naphrax mounting proved to be the most damaging step whatever the size of diatoms. For cleaning treatments, incineration provided the most satisfactory results and acted on a non-selective way as opposed to hydrogen peroxide which led to either a large number of non-cleaned frustules or dissolved valves. Our recommendations for processing samples of lightly silicified Mediterranean benthic diatoms include the use of low speed centrifugations, dehydration at room temperature, incineration and dry mounting. [less ▲]

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See detailProcessing spatial and pitch attributes of sounds in the absence of visual experience : an fMRI study
Collignon, O; Vandewalle, Gilles ULg; Voss, P et al

in NeuroImage (2010), 51(Suppl. 1),

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See detailLa procession dansante d'Echternach
Kurth, Godefroid ULg

in Revue Générale : Religion, Politique, Histoire (1876), XXIV

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See detailLa procession-spectacle comme recomposition de l’espace
Delfosse, Annick ULg

Conference (2008, April 10)

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See detailLes processions de l’Europe baroque : définition, typologie et enjeux
Delfosse, Annick ULg

Scientific conference (2009, March 27)

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See detailProcessos a políticas (locais) de integração : estado do conhecimento e ilações
Penninx, Rinus; Martiniello, Marco ULg

in Marques, Margarida (Ed.) Estado-Nação e Migrações Internacionais (2010)

Detailed reference viewed: 55 (1 ULg)
See detailProcessus attentionnels et maladie d'Alzheimer
Collette, Fabienne ULg; Van der Linden, Martial ULg

in Couillet, J.; Leclerq, M.; Moroni, C. (Eds.) et al La neuropsychologie de l'attention (2002)

La maladie d'Alzheimer se caractérise par l'accumulation progressive de déficits affectant différents domaines cognitifs.(...)Il est maintenant largement reconnu que la maladie d'Alzheimer n'affecte pas ... [more ▼]

La maladie d'Alzheimer se caractérise par l'accumulation progressive de déficits affectant différents domaines cognitifs.(...)Il est maintenant largement reconnu que la maladie d'Alzheimer n'affecte pas tous les processus cognitifs de façon équivalente.(...)Les modèles cognitifs de l'attention suggèrent que l'attention n'est pas un système homogène et que différents types de processus attentionnels peuvent être distingués.(...)Le but de ce chapitre est de présenter les travaux les plus représentatifs ayant exploré ces différents types de processus dans la maladie d'Alzheimer. [less ▲]

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See detailProcessus attentionnels et vieillissement normal
Adam, Stéphane ULg; Van der Linden, Martial ULg; Collette, Fabienne ULg

in Couillet, Josettte; Leclerq, Michel; Moroni, Christine (Eds.) et al Neuropsychologie de l'attention (2002)

De très nombreuses études ont mis en évidence une diminution de performance des sujets âgés dans une grande variété de tâches cognitives, à la fois en condition de laboratoire et dans la vie réelle ... [more ▼]

De très nombreuses études ont mis en évidence une diminution de performance des sujets âgés dans une grande variété de tâches cognitives, à la fois en condition de laboratoire et dans la vie réelle. Cependant, ce déclin lié à l'âge n'est pas observé dans toutes les situations et les personnes âgées peuvent même présenter dans certaines tâches des performances supérieures à celles des sujets jeunes. [less ▲]

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See detailProcessus attentionnels et vieillissement normal
Adam, Stéphane ULg; Collette, Fabienne ULg; Van der Linden, Martial

in Azouvi, Philippe; Couillet, Josette; Leclercq, Michel (Eds.) et al La neuropsychologie de l'attention (2002)

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See detailLes processus climatologiques intervenant dans le bilan hydrologique de petits bassins versants boisés
Alexandre, Jean ULg; Petit, François ULg

in Les Ecosystèmes Forestiers en Wallonie (1983)

Detailed reference viewed: 10 (3 ULg)
See detailLes processus constitutionnels - Cours général à l'Académie internationale de droit constitutionnel (29e session annuelle, Tunis, 2013)
Behrendt, Christian ULg

Scientific conference (2013, August)

Cours général de la session 2013 de l'Académie internationale de droit constitutionnel

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See detailProcessus d'aménagement et des gestion des espaces publics
Partoune, Christine ULg; Schmitz, Serge ULg; Dalimier, Isabelle ULg et al

in Tableau de bord "Participation et espaces publics" - Pour un développement et une gestion concertée des espaces publics (2010)

La recherche-action TOPOZYM a produit un tableau de bord qui est un outil au service des personnes qui sont des vecteurs de changement de comportement des acteurs de l’espace (animateurs territoriaux ... [more ▼]

La recherche-action TOPOZYM a produit un tableau de bord qui est un outil au service des personnes qui sont des vecteurs de changement de comportement des acteurs de l’espace (animateurs territoriaux, médias, secteur éducatif, agents de développement local,...) dans une perspective d’une meilleure intégration des principes du développement durable. Dans le tableau de bord, pour simplifier, ce type d’intervenant a été désigné par le terme d’animateur territorial. Ce tableau de bord a pour objectif de les aider à concevoir et/ou à évaluer des démarches participatives efficientes et cohérentes dans le cadre de la gouvernance territoriale des lieux et des espaces publics. [less ▲]

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