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See detailModelling Transient Air-water Flows in Civil and Environmental Engineering
Kerger, François ULiege

Doctoral thesis (2010)

The present text, submitted to the University of Liège in fulfillment of the requirements for the degree of “Docteur en Sciences de l’Ingénieur”, aims at improving the understanding and description of ... [more ▼]

The present text, submitted to the University of Liège in fulfillment of the requirements for the degree of “Docteur en Sciences de l’Ingénieur”, aims at improving the understanding and description of air‐water interactions in transient flows. A particular emphasis is set on phenomena relevant in civil and environmental engineering, like rivers, pipes, and hydraulic structures. Theoretical results of this doctoral research may be summarized in two main propositions. First, I show that any mathematical model for free surface flows can be extended to pressurized flows. Second, the multiphase drift‐flux model is proven an adequate alternative to Navier‐ Stokes equations in civil and environmental engineering. These propositions underpin the development of original mathematical models and new computational codes (WOLF1D and WOLF IMPack). Validation and application on actual cases prove the efficiency of the new approach. Original concepts introduced in this thesis pave the way for further research on environmental flows, especially on the mathematical description of transport phenomena (pollutants, sediments) and heterogeneous interactions (vegetation, rough bed). [less ▲]

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See detailRendre sensible
Havelange, Carl ULiege

Conference (2010, December 17)

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See detailImpact of Climate change on inundation hazard along river Meuse
Dewals, Benjamin ULiege; Detrembleur, Sylvain ULiege; Archambeau, Pierre ULiege et al

Conference (2010, December 16)

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See detailAssociation inhibiteurs calciques / inhibiteurs du SRAA : l'avenir?
Krzesinski, Jean-Marie ULiege

Conference (2010, December 16)

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See detailWriting a ghost story - Séquence didactique (canevas "Situation-Problème")
Pagnoul, Pierre ULiege

Learning material (2010)

Cette présentation propose une séquence didactique qui intègre un contenu culturel dans une série de leçons construites sur le canevas de la "situation-problème".

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See detailLe divorce en droit international privé
Pfeiff, Silvia ULiege

Conference (2010, December 14)

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Peer Reviewed
See detailBrucella ceti infection in a harbor porpoise (Phocoena phocoena)
Jauniaux, Thierry ULiege; Brenez, Cecile; Fretin, David et al

in Emerging Infectious Diseases (2010), 139(11), 254-7

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See detailDéontologie de l'information : journée d'étude
Vanesse, Marc ULiege

Poster (2010, December 14)

Journée de réflexion sur la déontologie journalistique avec le bâtonnier de l'Ordre des avocats de Liège, le secrétaire général du Conseil de déontologie, un journaliste d'investigation et le secrétaire ... [more ▼]

Journée de réflexion sur la déontologie journalistique avec le bâtonnier de l'Ordre des avocats de Liège, le secrétaire général du Conseil de déontologie, un journaliste d'investigation et le secrétaire général adjoint de l'Association des journalistes. [less ▲]

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See detailSynthèse et caractérisation de nanomatériaux fonctionnels siliciques structurés à l’aide de micelles complexes de copolymères séquencés doublement hydrophiles
Warnant, Jérôme ULiege

Doctoral thesis (2010)

This study focused on the design and development of new structuring agents of silica constituted of induced and reversible assemblies of original copolymers, the double hydrophilic block copolymers (DHBC ... [more ▼]

This study focused on the design and development of new structuring agents of silica constituted of induced and reversible assemblies of original copolymers, the double hydrophilic block copolymers (DHBC). The first system studied consists of a neutral-anionic DHBC PAPEO-b-PAA ou poly(acrylate methoxy poly (ethylene oxide))-b-poly (acrylic acid). The PAA block is a weak polyacid with a degree of ionization depending on the pH. In aqueous solution and in a right pH range, the association of this copolymer with a weak polybase, an oppositely charged polyamine, such as an oligochitosan, leads to the formation of polyion complex micelles (PIC) with a core/corona structure. These micelles can direct the structure of highly organized inorganic materials with different types of mesostructures. In a second step, by adjusting the conditions of pH, ionic strength, it is possible to "control" the extraction of organic species to get functional porous materials able to trap species of charge opposite to the functionality. Organized materials are obtained because of a favourable balance of the interactions between organic and inorganic species. If a polyamine/silica interaction occurs at the expense of the interaction polyamine/DHBC, the mesostructuring process by the micelles is limited. A neutral-cationic DHBC PEO-b-PDMAEMA poly(ethylene oxide)-b-poly(2-(dimethylamine)ethyl) associated with an anionic PVS poly(vinyl sulfonic acid) polymer can play a dual role in the synthesis of silica materials: firstly managing the growth of silica particles by interacting with the silicates and secondly acting as a structuring agent in association with PVS, confering a mesostructuration to the material. Finally, a very promising approach allowed to encapsulate water-soluble and charged drugs in a material by using as silica complexing agent a complex between the drug and a DHBC. [less ▲]

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See detailChanges in functional interactions during anaesthesia-induced loss of consciousness
Schrouff, Jessica ULiege; Perlbarg, Vincent; Boly, Mélanie ULiege et al

Poster (2010, December 12)

Consciousness has been related to the amount of integrated information that the brain is able to generate. In this paper, we tested the hypothesis that the loss of consciousness caused by propofol ... [more ▼]

Consciousness has been related to the amount of integrated information that the brain is able to generate. In this paper, we tested the hypothesis that the loss of consciousness caused by propofol anesthesia is associated with a significant reduction in the capacity of the brain to integrate information. To assess the functional structure of the whole brain, functional integration and partial correlations were computed from fMRI data acquired from 18 healthy volunteers during resting wakefulness and propofol-induced deep sedation. Total integration was significantly reduced from wakefulness to deep sedation in the whole brain as well as within and between its constituent networks (or systems). Integration was systematically reduced within each system (i.e., brain or networks), as well as between networks. However, the ventral attentional network maintained interactions with most other networks during deep sedation. Partial correlations further suggested that functional connectivity was particularly affected between parietal areas and frontal or temporal regions during deep sedation. Our findings suggest that the breakdown in brain integration is the neural correlate of the loss of consciousness induced by propofol. They stress the important role played by parietal and frontal areas in the generation of consciousness. [less ▲]

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See detailA zealous parallel gradient descent algorithm
Louppe, Gilles ULiege; Geurts, Pierre ULiege

Poster (2010, December 11)

Parallel and distributed algorithms have become a necessity in modern machine learning tasks. In this work, we focus on parallel asynchronous gradient descent and propose a zealous variant that minimizes ... [more ▼]

Parallel and distributed algorithms have become a necessity in modern machine learning tasks. In this work, we focus on parallel asynchronous gradient descent and propose a zealous variant that minimizes the idle time of processors to achieve a substantial speedup. We then experimentally study this algorithm in the context of training a restricted Boltzmann machine on a large collaborative filtering task. [less ▲]

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See detailPrécarité et parentalité difficile : une aide coordonnée au bénéfice de l’enfant. « Seconde Peau », le projet de maisons médicales et d’hôpitaux liégeois
Vanmeerbeek, Marc ULiege

Conference (2010, December 11)

Une collaboration entre des centres de santé de première ligne (maisons médicales) et des services hospitaliers (Service SOS Familles du CHC - Liège et maternité universitaire au CHR de la Citadelle ... [more ▼]

Une collaboration entre des centres de santé de première ligne (maisons médicales) et des services hospitaliers (Service SOS Familles du CHC - Liège et maternité universitaire au CHR de la Citadelle - Liège) a permis de mettre sur pieds une intervention précoce dans le milieu de vie au bénéfice de nourrissons et jeunes enfants victimes de négligence ou de troubles de l'attachement. [less ▲]

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See detailTwo student/teacher communication services in an adaptive IMS LD UoL
Verpoorten, Dominique ULiege

Report (2010)

This document describes two instructor/student communication services integrated in an adaptive Unit of Learning (UoL) called "The Dangerous Knowledge Tour" (DKT) designed with the ReCourse IMS-LD ... [more ▼]

This document describes two instructor/student communication services integrated in an adaptive Unit of Learning (UoL) called "The Dangerous Knowledge Tour" (DKT) designed with the ReCourse IMS-LD authoring tool. [less ▲]

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See detailLes élèves de Maroua (Cameroun) et l’interdiction du téléphone à l’école : Opinions et stratégies de détournement. Pour une gouvernance techno-scolaire systémique et participative
Beche, Emmanuel ULiege

in Kaliao, Revue pluridisciplinaire de l'Ecole Normale Supérieure de Maroua (Cameroun) (2010), 2(4), 9-25

Cet article vise à cerner les opinions et stratégies que les élèves développent dans la mise en œuvre de la décision d’interdiction du téléphone à l’école au Cameroun. Nous l’avons ainsi situé dans ... [more ▼]

Cet article vise à cerner les opinions et stratégies que les élèves développent dans la mise en œuvre de la décision d’interdiction du téléphone à l’école au Cameroun. Nous l’avons ainsi situé dans l’approche de la sociologie des usages et utilisé l’entretien pour collecter les données. Les opinions qu’ils y développent, dépendent plus du niveau d’étude que du genre. Mais ils reconnaissent que le respect de cette décision n’est pas une réalité à l’école. Ils explorent plusieurs stratégies pour la détourner, ce qui montre à quel point une gouvernance techno-scolaire découlant d’une démarche technocratique et déterministe, est limitée. Il s’agit alors de penser celle qui soit systémique et participative. [less ▲]

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See detailFormation professionnelle et approche par les capacités
Orianne, Jean-François ULiege; Remy, Céline ULiege

Conference (2010, December 10)

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See detailLa voix universelle kantienne, une voix ordinaire ? Cavell lecteur de Kant
Gauvry, Charlotte ULiege

Conference (2010, December 10)

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See detailErgonomic analysis in chronic low back pain workers
Mairiaux, Philippe ULiege

Conference (2010, December 10)

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See detailOptimisation of new biodegradable microcarriers tailored for tissue engineering
Tsoy, A; Sevrin, Chantal ULiege; Köttgen, Cindy et al

Conference (2010, December 10)

Detailed reference viewed: 6 (1 ULiège)