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See detailStructural and electrochemical properties of the LiCo2/3Ni1/6Mn1/6O2 positive electrode material
Mahmoud, Abdelfattah ULiege; Amarilla, Josè Manuel; Saadoune, Ismael

Poster (2010, April 27)

Cathode materials play an important role in functioning the operation of lithium-ion batteries . Recently, The layered phases in the series Li[Co(1-2y)]NiyMnyO2 have drawn a lot of attention as ... [more ▼]

Cathode materials play an important role in functioning the operation of lithium-ion batteries . Recently, The layered phases in the series Li[Co(1-2y)]NiyMnyO2 have drawn a lot of attention as alternative cathode materials in Li-ion batteries, and considerable research efforts have been made to understand their structure properties relationship.In this work, we have prepared LiCo2/3Ni1/6Mn1/6O2 via the combustion method at 900°C for 12h. Structural and electrochemical properties of this material were investigated. Rietveld analysis of the XRD pattern shows this compound as having the α-NaFeO2 type structure (S.G. R-3m; a = 2.8388(2) Ǻ; c = 14.1557(1) Ǻ). Figure 1 shows the SEM image of the LiCo2/3Ni1/6Mn1/6O2 particles. The material is characterized by a high homogeneity and a granular shape with an average particles size less than 500nm.The electrochemical tests of the studied cathode shows a good reversibility of the charge/discharge process with a high initial discharge capacity of about 162mAh/g in the 2.7-4.5V range at the C/2 (Figure 2). Lithium extraction from this phase occurs without major structural modifications. [less ▲]

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See detailAnalyse de la marche/course chez le sportif
Kaux, Jean-François ULiege

Conference (2010, April 26)

Detailed reference viewed: 168 (13 ULiège)
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See detailHigh-resolution measurements and modelling of the Cape Ghir upwelling filament during the CAIBEX survey
Troupin, Charles ULiege; Sangrà, Pablo; Arístegui, Javier et al

Poster (2010, April 26)

Detailed reference viewed: 36 (0 ULiège)
See detailLe cinéma au risque du musée : le spectateur exposé
Thonon, Jonathan ULiege

Conference (2010, April 26)

Detailed reference viewed: 17 (1 ULiège)
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See detailDecadal changes of carbon dioxide in the Southern North Sea
Harlay, Jérôme ULiege; Delille, Bruno ULiege; Borges, Alberto ULiege

Poster (2010, April 26)

Since late 2000, we have acquired partial pressure of CO2 (pCO2) data underway with an equilibrator coupled to an infra-red gas analyser on all the cruises carried out on RV Belgica. Here, we discuss the ... [more ▼]

Since late 2000, we have acquired partial pressure of CO2 (pCO2) data underway with an equilibrator coupled to an infra-red gas analyser on all the cruises carried out on RV Belgica. Here, we discuss the decadal changes of pCO2 during winter-time in the Southern North Sea. The trends are faster than those reported in open oceanic waters, although strongly modulated by inter-annual variability that seems to be related to the North Atlantic Oscillation. [less ▲]

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See detailHigh-resolution measurements and modelling of the Cape Ghir upwelling filament during the CAIBEX cruise
Troupin, Charles ULiege; Beckers, Jean-Marie ULiege; Sangrà, Pablo et al

Conference (2010, April 26)

Detailed reference viewed: 35 (1 ULiège)
Peer Reviewed
See detailCoptic kata vs Greek κατά: A Case-Study in Contrastive Semantics
Polis, Stéphane ULiege

Conference (2010, April 26)

Detailed reference viewed: 29 (0 ULiège)
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See detailAnnular Groove Phase Mask coronagraph in diamond for mid-IR wavelengths
Delacroix, Christian ULiege; Mawet, Dimitri; Surdej, Jean ULiege et al

Poster (2010, April 25)

Detailed reference viewed: 27 (11 ULiège)
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See detailLa pathologie hypothalamo-hypophysaire post-traumatique
VALDES SOCIN, Hernan Gonzalo ULiege; Beckers, Albert ULiege

Conference (2010, April 24)

Detailed reference viewed: 19 (4 ULiège)
See detailOrthodontics and Periodontology
LAMBERT, France ULiege

Conference (2010, April 24)

Detailed reference viewed: 8 (0 ULiège)
See detailQuand la censure fonctionne à plein régime. Autour de la question algérienne
Sindaco, Sarah ULiege

Conference (2010, April 24)

Detailed reference viewed: 7 (0 ULiège)
See detailLes troubles bipolaires dans la petite enfance : une sémiologie dimensionnelle du normal au pathologique
Scholl, Jean-Marc ULiege

Conference (2010, April 24)

Les médecins confrontés à la petite enfance, particulièrement les neuropédiatres, les pédiatres et les pédopsychiatres, sont en attente de repères sémiologiques précis leur permettant de mieux discriminer ... [more ▼]

Les médecins confrontés à la petite enfance, particulièrement les neuropédiatres, les pédiatres et les pédopsychiatres, sont en attente de repères sémiologiques précis leur permettant de mieux discriminer les difficultés propres de l'enfant. La bipolarité est une affection qui nécessite, plus que d'autres, l'acquisition de meilleurs repères cliniques. Pour répondre à cette attente, la recherche sémiologique présentée dans cet exposé a mis en lumière une sémiologie, non pas catégorielle, mais dimensionnelle, c'est-à-dire une sémiologie précisant chaque micro-signe pour lui-même, et, en le considérant dans un continuum du normale au pathologique. C'est l'intensité de ce signe ou la présence concomitante d'autres signes, qui mettront l'enfant en difficulté ou en souffrance, faisant ainsi passer ce signe vers un aspect pathologique. De plus, cette recherche a tenté de préciser l'évolution développementale de cette sémiologie, en fonction de l'âge. Ainsi, cet exposé aboutit à la description d'une sémiologie très fine de la bipolarité, et à la proposition d'une classification des états bipolaires dans la petite enfance. Il donne également un diagnostic différentiel précis entre Bipolarité et Troubles de l'attention avec ou sans hyperactivité. [less ▲]

Detailed reference viewed: 118 (8 ULiège)
See detailLe culte moderne de la mémoire : patrimoine et philosophie du soupçon
Dawans, Stéphane ULiege

Conference (2010, April 23)

Detailed reference viewed: 37 (5 ULiège)
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See detailIndéterminations de la photographie (I)
Havelange, Carl ULiege

Conference (2010, April 23)

Detailed reference viewed: 30 (10 ULiège)
See detailDe la périurbanisation diffuse à la ville compacte qualitative
Halleux, Jean-Marie ULiege

Conference (2010, April 23)

Detailed reference viewed: 27 (7 ULiège)
Peer Reviewed
See detailQuelles campagnes pour quels agritourisme ? Une analyse prospective et internationale
Dubois, Charline ULiege

in Schmitz, Serge; Decroly, Jean-Michel; Dubois, Charline (Eds.) Ecoles doctorales thématiques en géographie et en développement territorial : "Questionner le tourisme rural" (2010, April 23)

Detailed reference viewed: 29 (0 ULiège)
See detailOn the use of posture verbs by French-speaking learners of Dutch: a corpus-based study
Perrez, Julien ULiege

Conference (2010, April 23)

Detailed reference viewed: 18 (3 ULiège)
See detailprisons : l'espace privé en question
Tieleman, David ULiege

Conference (2010, April 23)

Detailed reference viewed: 60 (16 ULiège)
See detailL’insertion professionnelle des comédiens
Brahy, Rachel ULiege; Fraiture, Sébastien ULiege; Megherbi, Salim ULiege

Conference (2010, April 23)

Detailed reference viewed: 28 (10 ULiège)
See detailDevelopment of an analytical method to determine the cryolitic bath composition by Raman spectroscopy
Malherbe, Cédric ULiege; Gilbert, Bernard ULiege

Poster (2010, April 23)

Since the end of the nineteenth century, metallic aluminium is produced by electro-deposition from a solution of aluminium oxide in cryolitic melts around 1000°C (Hall-Héroult process). The industrial ... [more ▼]

Since the end of the nineteenth century, metallic aluminium is produced by electro-deposition from a solution of aluminium oxide in cryolitic melts around 1000°C (Hall-Héroult process). The industrial melt is composed mostly of cryolite (Na3AlF6) and AlF3 and is characterized by the molar NaF/AlF3 ratio, named cryolitic ratio (CR). It turns out that the bath composition is critical: for instance, it has been shown that a small change in the Al2O3 content leads to a great change in the overvoltage required for the electrolysis. Therefore controlling the melt composition is very important in order to reduce the energy lost. Unfortunately no in situ analytical method allows studying the composition of the melt yet. Considering our experience in the study of such highly corrosive media by Raman spectroscopy and since the bath spectrum is function of both the CR and the Al2O3 content, we have proposed in the past to apply that technique to the direct determination of the melt composition. Despite the CR could be well evaluated in the lab, experimental problems however made the practical application difficult. The purpose of this presentation will be to show the new results obtained on an updated instrument: - Spectra are recorded in 20 s or less with a higher quality than before. - The previously developed home-made software was adapted to the updated instrument and various spectra analysis procedures are under study. - A procedure to prepare reference samples was also developed taking into account the homogeneity problems that have been met. - The slopes of the alumina calibration curves are depending on the bath CR, in confirmation of our previous results. - The new results are compared with the previous ones. It will be concluded that Raman spectroscopy is indeed becoming a suitable technique for developing an analytical method to determine the composition of industrial cryolitic melts. [less ▲]

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See detailLa salive, une nouvelle matrice alternative en toxicologie
Collart, Anne-Françoise ULiege

Conference (2010, April 23)

Detailed reference viewed: 55 (2 ULiège)
Peer Reviewed
See detailCassandre's results from the Kwalon experiment
Lejeune, Christophe ULiege

Conference (2010, April 23)

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Detailed reference viewed: 267 (9 ULiège)
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See detailHow Climate Change Could Affect The Hydrology In Walloon Region ?
Bauwens, Alexandra ULiege; Sohier, Catherine ULiege; Degre, Aurore ULiege

Poster (2010, April 22)

Research on climate change and its impacts on hydrology are increasingly important nowadays. AMICE project focuses on the adaptation of the Meuse to the impacts of climate change. On this study, we focus ... [more ▼]

Research on climate change and its impacts on hydrology are increasingly important nowadays. AMICE project focuses on the adaptation of the Meuse to the impacts of climate change. On this study, we focus on the Walloon tributaries of the Meuse river, and more specifically on the Vesdre and the Lesse sub-catchments. Climate change scenarios are outputs of the CCI-HYDR Perturbation Tool for time slice 2020-2050 and 2070-2100. This tool allows us to build climate change time series and to use it as input of our hydrological models. The most pessimistic and the most optimistic scenarios are selected. The hydrological model used is called EPICGrid and it is a physically based distributed model at catchment scale. EPICGrid used the perturbed meteorological data to provide hydrograms for the different scenarios and time slice for the Vesdre and the Lesse sub-catchments. It appears that for the Vesdre daily discharge with a return period of 100 years (Qd100) could varies between -3% and +27% when the mean annual 7-day Minimum flow with a return period of 50 years (MAM750) varies between -37% and +16% for 2070-2100. For the Lesse, Qd100 varies between -30% and +50% when MAM750 varies between -21% and +28% for 2070-2100. The broad range of discharge variations reflects the broad range of meteorological variation. These results will be used further in the AMICE project to build an adaptation strategy. [less ▲]

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See detailA regional flux-based risk assessment approach of contaminated sites on groundwater bodies
Brouyère, Serge ULiege; Jamin, Pierre ULiege; Dollé, Fabien ULiege et al

Poster (2010, April 22)

In the context of the water framework directive, management plans have to be set up about water quality in surface and groundwater bodies in the EU. One of the first steps is to evaluate the risk of ... [more ▼]

In the context of the water framework directive, management plans have to be set up about water quality in surface and groundwater bodies in the EU. One of the first steps is to evaluate the risk of contamination of these water resources, and particularly the risk posed by contaminated industrial sites. From the perspective of water resource management, each of these sites taken individually does not necessary constitute a major threat. However, in heavily industrialised and urbanised areas, the cumulative effect of multiple contaminant sources is likely to present a risk. In order to propose adequate but still economically reliable measures, the calculated risk should be based on a so-called megasite approaches using criteria reflecting the water quality deterioration, in a cumulative way, at the scale of the whole surface water or groundwater body. A GIS-based regional risk assessment approach is developed here for groundwater bodies using the SEQ-ESO currently used within the Walloon Region as indicator to reflect the quality status of the groundwater body. The approach is applied on the groundwater body RWM073 “Gravels and alluvial deposits of the Meuse river between Engis and Herstal”, identified at risk of not reaching a good quality status by 2015. The different steps of this methodology consist of an inventory of proved or potential contaminating industrial sites, a numerical modelling of pollutants behaviour at the scale of the groundwater body and the application of the SEQ-ESO that finally gives a global quality status of the whole groundwater body. This analysis also serves as basis for a socio-economic approach intending to provide indications on costs and benefits generated by total or partial remediation of the contaminated groundwater bodies according to the different management scenarios. [less ▲]

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See detailHigh Multiplicity Scheduling Problems and Just-In-Time Scheduling
Crama, Yves ULiege

Conference (2010, April 22)

Detailed reference viewed: 17 (1 ULiège)
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See detailPhysically-based groundwater vulnerability assessment for groundwater protection and land-use management
Popescu, Ileana-Cristina; Brouyère, Serge ULiege; Derouane, Johan et al

Poster (2010, April 22)

Numerous groundwater vulnerability and risk mapping techniques have been developed taking into consideration a variable number of factors. Most common techniques produce maps of indexes based on a ... [more ▼]

Numerous groundwater vulnerability and risk mapping techniques have been developed taking into consideration a variable number of factors. Most common techniques produce maps of indexes based on a relatively empirical combination of weighted factors reflecting the protective effect of underground formations overlying the groundwater resource. The limitation of such methods is related to their use of a qualitative definition of groundwater vulnerability, as opposed to a definition based on a quantitative description of contaminant migration. A physically-based point of view and definition of the vulnerability is proposed and based on three factors describing a pollution event, which are the contaminant transfer time from the hazard location to the 'target', the contamination duration at the 'target' and the level of contaminant concentration reached at the 'target'. This concept allows a clear distinction between conventional aspects and physically-based results in the building of a final vulnerability indicator. This methodology has the further advantage to consider the possible impact of runoff conditions occurring at the land surface and possibly leading to lateral contamination of groundwater through downstream preferential infiltration features, such as karstic features. Practically, this method needs to describe and simulate the pollutant migration in the unsaturated zone and possibly in the saturated zone in order to assess the breakthrough curve at the 'target'. Preliminary application is illustrated on a case-study located in a Néblon limestone basin in Belgium, one of the main groundwater resources for the city of Liège in the Meuse basin. Perspectives are proposed towards a generalisation of the vulnerability concept for risk assessment within a pressure - state - impact framework. [less ▲]

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See detailFlood Protection Design Based on Micro-scale Risk Modelling
Ernst, Julien ULiege; Dewals, Benjamin ULiege; Detrembleur, Sylvain ULiege et al

Poster (2010, April 22)

Detailed reference viewed: 45 (13 ULiège)
See detailLa recette de cuisine : essai de définition
Colson, Maryse ULiege

Conference (2010, April 21)

Detailed reference viewed: 66 (15 ULiège)
See detailHypertension
Krzesinski, Jean-Marie ULiege

Conference (2010, April 21)

Detailed reference viewed: 13 (2 ULiège)
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See detailInstabilité de Faraday à l'interface entre mousse et solution
Bronfort, Ariane ULiege

Conference (2010, April 20)

Detailed reference viewed: 26 (5 ULiège)
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See detailAtteintes neurologiques périphériques du pied
Kaux, Jean-François ULiege; Wang, François-Charles ULiege

Conference (2010, April 20)

Detailed reference viewed: 92 (15 ULiège)
Peer Reviewed
See detailEye- movement patterns for logical connectives
Dumitru, Magdalena ULiege

Conference (2010, April 18)

Detailed reference viewed: 11 (1 ULiège)
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See detailLa force persuasive de l'Idéo-graphie
Leclercq, Bruno ULiege

Conference (2010, April 17)

Detailed reference viewed: 18 (0 ULiège)
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See detailMALDI-TOF/TOF sequencing of peptide toxins from animal venoms
Quinton, Loïc ULiege; Echterbille, Julien ULiege; Gilles, Nicolas et al

Poster (2010, April 16)

Detailed reference viewed: 39 (10 ULiège)
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See detailMALDI MS Tissue Imaging of Crystallins using an original metyhod to direct protein identification on lens slices
Bertrand, Virginie ULiege; Debois, Delphine ULiege; Quinton, Loïc ULiege et al

Poster (2010, April 16)

The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina. Crystallins, α, β and γ, are the predominant structural proteins ... [more ▼]

The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina. Crystallins, α, β and γ, are the predominant structural proteins in lens. They constitute 90% of water soluble proteins and contribute to its transparency and refractive properties by a uniform concentration gradient in the lens. Nevertheless, if these crystallins undergo post translational modifications, they become less soluble and the opacity of eye lens increases. This phenomenon defines cataract. Yet, the nature and the mechanism of occurring of these modifications and how they happen are not fully understood. MALDI mass spectrometry imaging is a recent technique allowing examining proteins in their native location without the need for traditional processing methods such as extraction, homogenization, and separation. Nevertheless, one main difficulty lies in the identification of the detected species, especially proteins. MALDI-In Source Decay (MALDI-ISD) is a fragmentation process occurring in the mass spectrometer ion source. When the analyzed sample is a protein, ISD fragmentation leads to b-, c- and z-ions series, which allows for some sequencing of the protein. One great advantage of ISD is its fastness and easiness to be implemented since there is no need for a special treatment of the sample. The only requirement is the use of “ISD-favourable MALDI matrix” such as 2,5-dihydroxybenzoic acid or 1,5-diaminonaphtalene. 18 µm-thick equatorial sections of frozen porcine eye lenses were realized with a cryostat. 1,5-DAN matrix was either manually deposited or sprayed with an ImagePrep automated device (Bruker Daltonics). Data were acquired with an UltraFlex II MALDI-TOF/TOF mass spectrometer (BD) in positive reflector mode. For imaging experiments, the surface of the sample was divided into 100-µm-wide pixels and 500 shots were averaged on each. Based on calculated mass differences between consecutive ISD fragments peaks, tags of amino acids were established and submitted to a search in protein databases using a BLAST algorithm (search by sequence homology). Imaging experiments showed that the localization information may be very useful to associate fragments which exhibit close distributions, suggesting they are originating from the same protein. It is thus possible to arrange fragments in groups of probable origin and to extract the mass spectrum of a high-intensity pixel. This allows to work with a “purified” ISD mass spectrum where fragments of only one protein are present and potentially exhibiting a higher number of peaks, leading to a longer tag and to an easier identification. With this imaging strategy, we were able to identify (by homology) the Beta-Crystallins S and B2, the Gamma-Crystallin B, the Alpha-Crystallin A. [less ▲]

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See detailNovel Relative ICPL Based Quantitative Phospho- and Glycoproteome Analysis Method
Fleron, Maximilien ULiege; Greffe, Yannick ULiege; Massart, Anne-Cécile ULiege et al

Poster (2010, April 16)

Large scale proteomic analysis remains challenging partially because proteins are inhomogeneous and often influenced by a variety of structural modifications. In particular, these specific chemical ... [more ▼]

Large scale proteomic analysis remains challenging partially because proteins are inhomogeneous and often influenced by a variety of structural modifications. In particular, these specific chemical modifications called posttranslational modifications (PTM) are crucial determinants for the protein function and biological role. Up to now there have been a growing number of studies describing the enrichment and identification of PTM. However, a significant dearth of data offering a reliable methodology for PTM quantification does exist. The present work aims at developing a label based protein PTM quantification strategy and demonstrating its value on comparative analysis of cells originating from two distinct prostate metastasis sites. PC3 and LNCaP cells isolated from bone and lymph node prostate cancer metastasis sites respectively, were lysed and spiked with three non-human proteins serving as internal standards. Following this, the samples were reduced and alkylated, digested with trypsin and subjected to peptide ICPL (isotope coded protein label) labeling. The two peptide containing samples were joined together followed by the affinity isolation of phospho- (using TiO2 metal affinity chromatography) and glycopeptides (oxidized glycans were bound on hydrazide resin). The enriched fraction as well as the flow-through were analyzed on a 2D-(SCX and C18-RP)-nano-HPLC system. The peptide identification and quantification was conducted using electrospray ion-trap mass spectrometer (Bruker, HCT-ultra). Validation of the differentially modulated proteins was conducted in several biological and technical replicates using the label free MSe based quantification strategy. This PTM based, novel relative protein quantification using post-digest ICPL has detected over 598 individual proteins. Of these more than 95 % have been successfully quantified. PTM enrichment methodologies allowed an isolation rate of 91 % and 50 % for phosphorylated and glycosylated proteins respectively. The detailed comparison of PC3 and LNCaP cells has shown specific overexpression of selected proteins indicating differences between these two prostate metastatic cell lines. Several of these modulated proteins have been previously described to be related to prostate cancer (e.g. annexin A2 and vimentin) while others could be considered as potentially novel. These proteins might be implicated in the fundamental process related to metastasis dissemination. However, because of the known discrepancy between cell systems and clinical material, the present study can be regarded only as a step towards elucidation of these complex interactions. [less ▲]

Detailed reference viewed: 45 (6 ULiège)
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See detailL'incidence du temps en matière d'enlèvement international d'enfants
Pfeiff, Silvia ULiege

Conference (2010, April 15)

Detailed reference viewed: 23 (4 ULiège)
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See detailExpérience et critique. Sur le kantisme de Foucault
Bolmain, Thomas ULiege

Conference (2010, April 15)

Detailed reference viewed: 42 (11 ULiège)
Peer Reviewed
See detailReconstitution of the journeys to crime and location of their origin in the context of a crime series. A solution for a real case study.
Trotta, Marie ULiege; Kasprzyk, Jean-Paul ULiege; Donnay, Jean-Paul ULiege

Conference (2010, April 15)

Dynamic studies in crime analysis usually use distance-decay models applied on isotropic surfaces. If the distance actually traveled within the context of a crime series can be estimated, another approach ... [more ▼]

Dynamic studies in crime analysis usually use distance-decay models applied on isotropic surfaces. If the distance actually traveled within the context of a crime series can be estimated, another approach, independent of the widely discussed form of the distance decay, can be suggested. Besides, there is a need for studies on anisotropic space, especially in European cities, given their complex road network. Therefore, this study takes this aspect into account. We use data of a real case provided by the Belgian Police Department. Five criminal events have been committed in a short period of time by individuals using the same stolen car before abandoning it. The milometer allowed the Police to estimate the mileage covered by the criminals. The purpose of the analysis is to map out all the possible journeys to crime in order to find the offender's hideout. First, we generate cost surfaces propagated from the locations of the criminal events over the dense road network in a high-resolution raster file. This provides a distance value for all pixels of the potential paths to each crime. Then these distances are cumulated for all criminal events and the sum is confronted to the recorded mileage. This gives a restricted list of road sections from which all event locations can be reached under the constraint of the mileage covered. These results are then refined through a multi-criteria analysis using exogenous data, such as land covers. The small area finally identified contains indeed the hideout as confirmed by the Police Department. [less ▲]

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See detailRééducation et reprise sportive après chirurgie tendineuse
Crielaard, Jean-Michel ULiege; Kaux, Jean-François ULiege

Conference (2010, April 14)

Detailed reference viewed: 50 (9 ULiège)
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See detailComparison of Spectral Colorimetric Measurements vs. Color Pictures in Dermatology
Blain, Pascal ULiege; Michel, Fabrice; Moreau, Vincent et al

Poster (2010, April 13)

We studied scars and wounds depths and surfaces thanks to our interferometric fringes projector 3D scanner1, 2. Color information of a wound indicates its deterioration level. That’s why the visual color ... [more ▼]

We studied scars and wounds depths and surfaces thanks to our interferometric fringes projector 3D scanner1, 2. Color information of a wound indicates its deterioration level. That’s why the visual color restitution, as realistic as possible, is a highly important parameter. Firstly our acquired 3D pictures were color mapped with an image recorded by a RGB camera. The results were not efficient enough. In order to improve our technique and provide more precise information, we add a spectral characterization to the set-up. Before adding the spectral information and a realistic color mapping to the 3D measurements, we evaluate the performances of colorimetric measurements. The tests have been made on mice with scars on their back. [less ▲]

Detailed reference viewed: 18 (1 ULiège)
See detailOXA carbapenemase and their inhibition
Kerff, Frédéric ULiege

Conference (2010, April 13)

Detailed reference viewed: 17 (3 ULiège)
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See detailLésions musculaires particulières
Crielaard, Jean-Michel ULiege; Kaux, Jean-François ULiege

Conference (2010, April 13)

Detailed reference viewed: 92 (12 ULiège)
Peer Reviewed
See detailForecasting epidemic outbreaks ofwheat leaf blotch based on meteorological parameters
Junk, Jürgen; El Jarroudi, Moussa ULiege; Pogoda, Frederik et al

Poster (2010, April 12)

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See detailMulti-criterion Scantling Optimisation of Passenger Ships
Caprace, Jean-David ULiege; Bair, Frédéric ULiege; Rigo, Philippe ULiege

in 9th International Conference on Computer Applications and Information Technology in the Maritime Industries (2010, April 12)

In the scantling design of a passenger ship, minimum production cost, minimum weight and maximum moment of inertia (stiffness) are conflicting objectives. For that purpose, recent improvements were made ... [more ▼]

In the scantling design of a passenger ship, minimum production cost, minimum weight and maximum moment of inertia (stiffness) are conflicting objectives. For that purpose, recent improvements were made to the LBR-5 software (French acronym of “Stiffened Panels Software”, version 5.0) to optimize the scantling of ship sections by considering production cost, weight and moment of inertia in the optimisation objective function. A real multi-criterion optimisation of a passenger ship is presented in this paper. Results highlight that LBR-5 is competitive software to optimise scantling of ships at very early design stage with management of critical problems studied normally at a later step of the design. [less ▲]

Detailed reference viewed: 84 (10 ULiège)
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See detailNote sur la critique (post)situationniste de Foucault
Bolmain, Thomas ULiege

Conference (2010, April 12)

Detailed reference viewed: 36 (10 ULiège)
See detailProuver l'inconscient
Gyemant, Maria ULiege

Conference (2010, April 10)

Detailed reference viewed: 9 (0 ULiège)
See detailDe la règle institutionnelle à la règle contextuelle. Searle et Wittgenstein
Gauvry, Charlotte ULiege

Conference (2010, April 10)

Detailed reference viewed: 25 (0 ULiège)
Peer Reviewed
See detailMusique et confraternités nationales à Rome aux XVIe et XVIIe siècles
Corswarem, Emilie ULiege

Conference (2010, April 10)

Detailed reference viewed: 9 (1 ULiège)
See detailSub sinusal Bone augmentation Procedures: Biological Concept and Surgical Technique
LAMBERT, France ULiege

Conference (2010, April 09)

Sinus lift is a valuable procedure allowing implant placement in the posterior maxilla when residual bone height is insufficient. The procedure is nowadays less traumatic with the introduction of ... [more ▼]

Sinus lift is a valuable procedure allowing implant placement in the posterior maxilla when residual bone height is insufficient. The procedure is nowadays less traumatic with the introduction of biomaterials and the development of new surgical protocols. The objective of this lecture is explain the biological concept of sub-antral bone augmentation and to describe the surgical technique according to certain biological principles. Choice of biomaterial, indications, alternatives as well as complications will be envisaged. [less ▲]

Detailed reference viewed: 8 (2 ULiège)
See detailSubstrates and Gate Dielectrics: the Materials Issue for sub-22 nm CMOS Scaling
Caymax, Matty; Bellenger, Florence; Brammertz, Guy et al

Conference (2010, April 08)

Performance scaling of CMOS technologies beyond the 22 nm node will depend on the successful introduction of high mobility materials such as germanium and compound semiconductors on silicon substrates ... [more ▼]

Performance scaling of CMOS technologies beyond the 22 nm node will depend on the successful introduction of high mobility materials such as germanium and compound semiconductors on silicon substrates, which is not straightforward due to important materials incompatibilities. These semiconductors moreover necessitate new gate dielectric materials as the well-proven recipes of “hafnium-based oxides” are not working for various reasons. The lack of a stable, high-quality native oxide for both semiconductors forces materials scientists and device engineers to focus more on the interface rather than on the dielectric material it self. A first part of this paper discusses problems related to the hetero-epitaxial growth of Ge and of III/V materials on Si. By applying a low-high temperature regime, smooth layers of Ge on Si can be obtained. Because of the lattice mismatch, these layers will relax by the formation of misfit dislocations at the interface, combined with threading arms that extend to the surface. The thickness of the layer determines the final density of threading defects, even in case of confined selective growth in windows in a dielectric hard mask, unless specific measures are taken. The polar nature of III/V’s brings about additional problems of anti-phase domain nucleation. This can be solved by providing extra steps on the starting surface in combination with a “pre-deposition” of arsenic. The combination of Ge and III/V selective epitaxy on patterned wafers allows growing confined layers with a low defect density and of high quality. Moreover, by using standard shallow trench isolation as mask, a very natural integration of these materials in standard Si manufacturing can be realized. The second part of this paper deals with the growth of dielectric materials and control of the resulting interfaces. In contrast to the case of Si, both Ge and III/V surfaces are heavily prone to problems with pinning of the surface Fermi level (FLP), which prohibits an efficient control of the channel by varying gate voltages. In the case of Ge, the problem can be solved by decoupling the gate dielectric from the Ge surface by means of an ultra-thin, strained Si epi-layer, after which the well-known gate stack approaches with ALD-grown metal oxides from the Si world can be used. An alternative, promising solution is passivation with thermally grown GeO2 followed by ALD high-k, although this process requires much more care than its Si counterpart. Gate dielectrics on III/V, finally, are probably an even bigger challenge. Apart from the Ga2O+GaGdOx passivation on GaAs, no real solutions of the FLP problem are known. We will discuss the use of sulfur (from thermal treatments with H2S or in the liquid phase with (NH4)2S) in combination with ALD or MBD-grown high-k layers on both GaAs and InGaAs. This will be compared to alternative approaches based on an epitaxially grown interfacial passivation layer of Ge in combination with MBD-grown Al2O3. [less ▲]

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See detailNEMA NU1-2001 performance tests of Philips Brightview and Brightview XCT cameras
Seret, Alain ULiege

Conference (2010, April 08)

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See detailFibril formation by human lysozyme
Dumoulin, Mireille ULiege

Conference (2010, April 08)

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See detailAspects du vitalisme chez Foucault et Canguilhem
Oulc'hen, Hervé ULiege

Conference (2010, April 07)

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See detailSub Sinusal Bone augmentation Procedures: Biological Concept and Surgical Technique
LAMBERT, France ULiege

Conference (2010, April 07)

Sinus lift is a valuable procedure allowing implant placement in the posterior maxilla when residual bone height is insufficient. The procedure is nowadays less traumatic with the introduction of ... [more ▼]

Sinus lift is a valuable procedure allowing implant placement in the posterior maxilla when residual bone height is insufficient. The procedure is nowadays less traumatic with the introduction of biomaterials and the development of new surgical protocols. The objective of this lecture is explain the biological concept of sub-antral bone augmentation and to describe the surgical technique according to certain biological principles. Choice of biomaterial, indications, alternatives as well as complications will be envisaged. [less ▲]

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See detailMonitoring of surface interactions as a tool for nanoparticle design
Frost, R; Grandfils, Christian ULiege; Kasemo, B et al

Poster (2010, April 07)

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See detailIncrement in molecular weight of poly (dimethylamino-ethylmethacrylate) based polymers causes strong red blood cell aggregation but not hemolytic response
Cerda-Cristerna, B.I.; Flores, H; Pozos, A et al

Conference (2010, April 07)

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See detailPlace du dosage de la vitamine D
Cavalier, Etienne ULiege

Conference (2010, April 03)

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See detailLa Belgique au futur antérieur: retour sur Bye-Bye Belgium
Claisse, Frédéric ULiege

Conference (2010, April 02)

Proposée dans le cadre de journées consacrées aux "controverses scientifiques" du séminaire de Philosophie des sciences de l'ULg, la contribution revient sur l'émission "Bye-Bye Belgium", diffusée par la ... [more ▼]

Proposée dans le cadre de journées consacrées aux "controverses scientifiques" du séminaire de Philosophie des sciences de l'ULg, la contribution revient sur l'émission "Bye-Bye Belgium", diffusée par la RTBF le 13 décembre 2006. L'émission, qui avait alors divisé l'opinion, annonçait, à la faveur d'une "émission spéciale" du journal télévisé présentée par des journalistes de la rédaction (avec la complicité d'hommes politiques belges), l'indépendance unilatérale de la Flandre et la fin de la Belgique. La communication propose de traiter le dispositif de l'émission comme un "simulacre" (forme de critique, sur un mode systématiquement ironique, simulant les caractéristiques de la cible dénoncée) et comme un "futur antérieur" (mode de mise en alerte invitant à imaginer une menace comme déjà survenue, aux fins de la conjurer). "Bye-Bye Belgium" est comparé à "La Guerre des Mondes", particulièrement du point de vue des conventions et indices fictionnels. L'enjeu méthodologique sous-jacent est celui du traitement des codes rhétoriques et pragmatiques dans une controverse, et plus largement des compétences prêtées au destinataire de l'émission. [less ▲]

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See detailSynthesis of regional product activities JRA4-JRA9
Beckers, Jean-Marie ULiege; Alvera Azcarate, Aïda ULiege; Barth, Alexander ULiege et al

Conference (2010, April 01)

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See detailMicro-controverses : ce qu'elles sont et pourquoi les étudier.
Mormont, Marc ULiege

Conference (2010, April 01)

Les micro-controverses sont identifiées comme les points de rencontre entre des systèmes-experts à base scientifique et technique et des pratiques sociales enracinées dans des mondes vécus. Elles méritent ... [more ▼]

Les micro-controverses sont identifiées comme les points de rencontre entre des systèmes-experts à base scientifique et technique et des pratiques sociales enracinées dans des mondes vécus. Elles méritent d'être étudiées pour ce qu'elles révèlent à la fois des limites de la connaissance positive et des capacités des acteurs sociaux à se constituer comme experts. [less ▲]

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See detailCombinatorial Optimization Models in Automated Manufacturing
Crama, Yves ULiege

Conference (2010, April 01)

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See detailLe changement peut-il être géré ?
Pichault, François ULiege

Conference (2010, April 01)

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See detailStudies on the Interaction of a Novel 6,6¿¿- bis(1,2,4-triazin-3-yl)-,2¿:6¿,2¿¿-terpyridine Ligand with Lanthanide(III) Ions and Americium(III)
Lewis, Frank W.; Harwood, Laurence M.; Hudson, Michael J. et al

Conference (2010, April 01)

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See detailA pendulum test as a tool to evaluate viscous friction parameters in the equine fetlock joint
Noble, Prisca ULiege; Lumay, Geoffroy ULiege; Coninx, Marc ULiege et al

Poster (2010, April)

This study describes an equine fetlock joint pendulum test, and investigates the influence of post mortem time and intra-articular lipid solvent on the viscous frictional response. Fresh equine digits ... [more ▼]

This study describes an equine fetlock joint pendulum test, and investigates the influence of post mortem time and intra-articular lipid solvent on the viscous frictional response. Fresh equine digits (control group 1 (n = 6); lipid solvent group 2 (n = 6)) were mounted in a pendulum tribometer. Assuming that pendular joint damping could be modelled by a harmonic oscillator fluid damping (HOFD), damping time (t), viscous damping coefficient (c ) and friction coefficient (µ) were then followed for 5 hours under experimental conditions (400 N; 20 °C). In all experiments, pendular joint damping was found to follow an exponential decay function (R² = 0.99714), which confirms that joint damping is fluid. The evolution of t, c and µ was found to be significantly (P <0.05) different in the two groups. Indeed, t decreased and c and µ increased more rapidly and strongly in the group 2. It was concluded that pendular joint damping can be modelled by an HOFD model. The influence of post mortem time on results suggests that, ideally, joint mechanical properties should only be tested on fresh cadavers at the same post mortem time. Finally, the addition of lipid solvent was found to be responsible for upper viscous friction parameters and for a reduced damping time, which suggests that articular lubricating ability was compromised. This equine pendulum test could be used to test the efficacy of various bio-lubricant treatments. [less ▲]

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See detailEvaluation du temps de mélange à partir de la distribution temporelle du libre parcours dans une salle
Billon, Alexis ULiege; Dirix, Simon; Embrechts, Jean-Jacques ULiege

in Actes du 10ème Congrès Français d'Acoustique (2010, April)

Dans un espace clos où se mélangent les nombreuses ondes réfléchies, diffusées et diffractées par les surfaces, la propagation de l’énergie sonore peut être décomposée en deux étapes: tout d’abord, un ... [more ▼]

Dans un espace clos où se mélangent les nombreuses ondes réfléchies, diffusées et diffractées par les surfaces, la propagation de l’énergie sonore peut être décomposée en deux étapes: tout d’abord, un processus déterministe pour lequel il est possible d’identifier individuellement chaque contribution, suivi d’un processus stochastique pour lequel les contributions doivent être globalisées et vues comme un processus quasi-aléatoire. Le seuil de transition entre les deux comportements est matérialisé dans l’échogramme par le temps de mélange. Dans cette étude, le temps de mélange est analysé en regard de la distribution temporelle du libre parcours. Celle-ci est obtenue numériquement à l’aide du programme de tir de rayons large bande Salrev. Dans un premier temps, le mélange est identifié au travers du caractère asymptotique de cette distribution. Le temps de mélange est alors défini comme la durée (mesurée à partir de l’instant d’émission au départ de la source) nécessaire pour atteindre ce comportement asymptotique. A partir de cette définition du temps de mélange sont étudiées les influences de divers paramètres géométriques et acoustiques. Ensuite, trois applications pour des salles de concert sont réalisées. Cette étude montre que les valeurs obtenues pour le temps de mélange convergent vers celles observées expérimentalement, à condition que les parois de la salle soient suffisamment diffusantes. [less ▲]

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See detailTRANSNATIONAL MODELING OF THE SURFACE WATER QUALITY OF THE INTERNATIONAL RIVER BASIN DISTRICT MEUSE WITH PEGASE
Deliège, Jean-François ULiege; Everbecq, Etienne ULiege; Grard, Aline ULiege

Poster (2010, April)

The PEGASE Model has been applied at the entire International River Basin District of the Meuse. The poster presents different sub-basin applications on (i) the Chiers (Luxembourg + Belgium Walloon Region ... [more ▼]

The PEGASE Model has been applied at the entire International River Basin District of the Meuse. The poster presents different sub-basin applications on (i) the Chiers (Luxembourg + Belgium Walloon Region and French Rhin-Meuse Basin, 2000-2006) for the reference years 2000 and 2002 and prospective scenario 2015, (ii) International simulation performed (during 2005-2006) upstream (up to the Belgian border) for the reference year 2002, (iii) Current coordination between BE-Flemish Region and NL for downstream simulations of historical situation and (iv) prospective scenarios : International databases for a single reference year on the whole Meuse District [less ▲]

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See detailRecherche des intersections rayon-surfaces par classement préférentiel dans un logiciel d'acoustique des salles
Lesoinne, Stéphane ULiege; Embrechts, Jean-Jacques ULiege

in Actes du 10è Congrès Français d'Acoustique (2010, April)

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See detailProspective Strategies of High-rise Buildings Siting: Assessment of Impacts from Typological and Contextual Criteria
Saint-Pierre, Claire; Becue, Vincent; Teller, Jacques ULiege et al

in Zilch, Konrad (Ed.) High rise towers and tall buildings 2010. Design and construction of safe and sustainable highrise structures (2010, April)

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See detailDevelopment of a new crossbred based evaluation for carcass quality of Piétrain boars in the Walloon Region of Belgium
Dufrasne, Marie ULiege; Hammami, Hedi ULiege; Jaspart, Véronique et al

in Proceedings of the British Society of Animal Science and the Agricultural Research Forum (2010, April)

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See detailThree person-fit indexes with estimated ability level: a simulation study
Béland, Sébastien; Magis, David ULiege; Raîche, Gilles et al

Conference (2010, April)

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See detailThe influence of genetic selection on the milk fatty acid profile of spring calving dairy cows
Mc Parland, Sinead; Berry, Donagh; Coleman, J. et al

Poster (2010, April)

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See detailPredicting difficulty in PISA reading items : the process of describing item difficulty
Lumley, T.; Mendelovits, J.; Searle, D. et al

Conference (2010, April)

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See detailExtracting Intra-Domain Topology from mrinfo Probing
Pansiot, Jean-Jacques; Mérindol, Pascal; Donnet, Benoît ULiege et al

in 11th international Conference on Passive and active Measurement (2010, April)

Activeandpassivemeasurementsfortopologydiscoveryhave known an impressive growth during the last decade. If a lot of work has been done regarding inter-domain topology discovery and modeling, only a few ... [more ▼]

Activeandpassivemeasurementsfortopologydiscoveryhave known an impressive growth during the last decade. If a lot of work has been done regarding inter-domain topology discovery and modeling, only a few papers raise the question of how to extract intra-domain topologies from measurements results. In this paper, based on a large dataset collected with mrinfo, a multicast tool that silently discovers all interfaces of a router, we provide a mechanism for retrieving intra-domain topologies. The main challenge is to assign an AS number to a border router whose IP addresses are not mapped to the same AS. Our algorithm is based on probabilistic and empirical IP allocation rules. The goal of our pool of rules is to converge to a consistent router to AS mapping. We show that our router-to-AS algorithm results in a mapping in more than 99% of the cases. Furthermore, with mrinfo, point-to-point links between routers can be distinguished from multiple links attached to a switch, providing an accurate view of the collected topologies. Finally, we provide a set of large intra-domain topologies in various formats. [less ▲]

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See detailDonation after Cardiac Death In Liver Transplantation :is donor age an issue?
Detry, Olivier ULiege; De Roover, Arnaud ULiege; Squifflet, Jean-Paul ULiege et al

in Acta Chirurgica Belgica (2010, April), 110

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See detailDirectional and Nondirectional Risk Exposures in Hedge Fund Returns
Lambert, Marie ULiege; Hübner, Georges ULiege; Papageorgiou, Nicolas

Conference (2010, April)

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See detailEffects of large pore hemofiltration in a swine model of fulminant hepatic failure
Detry, Olivier ULiege; Janssen, Nathalie ULiege; Cheramy-Bien, Jean-Paul ULiege et al

in Acta Chirurgica Belgica (2010, April), 110

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See detailLipase-assisted synthesis of potential bio-based surfactants starting from lignocellulosic carbohydrates
Richard, Gaetan ULiege; Nott, Katherine ULiege; Paquot, Michel ULiege et al

Poster (2010, April)

Surfactants constitute an important class of compounds with a lot of applications, especially in the food and beverage industries (emulsion forming and stabilization, antiadhesive and antimicrobial ... [more ▼]

Surfactants constitute an important class of compounds with a lot of applications, especially in the food and beverage industries (emulsion forming and stabilization, antiadhesive and antimicrobial activities)1. With the prospect of synthesising new active compounds, white biotechnology offers efficient tools. Indeed, the use of enzymes as biocatalysts provides an interesting synthetic route in comparison to the chemical way that often requires high reaction temperatures and suffers from a lack of specificity, resulting in complex mixtures. Among all the biocatalysts available, lipases represent a class of industrial interest 2,3. In parallel, the starting material is also an important parameter : due to the depletion of petroleum reserves, its ever increasing price and various environmental aspects, the use of renewable or biomass resources is inevitable. Within the frame of a biorefinery project, we focused on the lipase-assisted modification of uronic acids. These carbohydrates can be obtained from lignocellulosic material, and, in the presence of fatty alcohols, the Candida antarctica lipase B catalyses the synthesis of amphiphilic compounds. Owing to the initial conditions used and the addition of co-solvents, we optimized the synthesis of these bio-based potential surfactants, and obtained a panel of various structures depending to the acyl acceptor used. The poster will present the details of these syntheses. [less ▲]

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See detailComparison of bovine and human O26 EHEC strains by the Whole Genome PCR Scanning
Bardiau, Marjorie ULiege; Ogura, Y.; Mainil, Jacques et al

Poster (2010, April)

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See detailTowards positional identification of susceptibility loci for White Heifer disease in Belgian Blue Cattle (poster)
Sartelet, Arnaud ULiege; Druet, Tom ULiege; Coppieters, Wouter ULiege et al

in New Biotechnology (2010, April), 27(Supplement 1), 79

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See detailAtopy controlling loci in Czech and Russian populations
Gusareva, Elena ULiege; Badalová, Jana; Havelková, Helena et al

Poster (2010, April)

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