References of "2010"
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See detailApproche juridique de l’extrait de casier judiciaire
Seron, Vincent ULg

Conference given outside the academic context (2010)

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See detailLes troubles de voisinage : trucs et astuces
Boufflette, Sophie ULg; Salvé, Arianne ULg

Scientific conference (2010, December 14)

Detailed reference viewed: 58 (11 ULg)
See detailAccès au droit, accès aux droits
Chappe, Vincent-Arnaud; Lejeune, Aude ULg

Scientific conference (2010, December 14)

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See detailUsing geostatistical constraints in electrical imaging for improved reservoir characterization
Martin, Roland; Kemna, Andreas; Hermans, Thomas ULg et al

Conference (2010, December 14)

Developing predictive models of reservoirs is often complicated by the spatial heterogeneities and the different scales which control flow and transport processes. In numerous studies over the past two ... [more ▼]

Developing predictive models of reservoirs is often complicated by the spatial heterogeneities and the different scales which control flow and transport processes. In numerous studies over the past two decades, geophysical imaging techniques have proved very useful for reservoir characterization. However, the loss of resolution and the non-uniqueness of standard solutions to inverse problems strongly limit the use of such deterministic imaging approaches. On the other hand, the use of common geostatistical approaches for reservoir characterization, for instance from logging information, may be a difficult task, since accurate variogram information is difficult to obtain (dense sampling in the vertical and lateral directions), and also because a high number of conditioned simulations is needed to remove statistical bias. Combining the high spatial sampling of deterministic geophysical imaging methods with geostatistical constraints, valid in the whole image plane, appears as a very promising approach to enhance reservoir characterization. To do so, we use a parameterized model covariance matrix based on standard variogram functions and a prior model as regularization operator in the inversion of electrical resistance data. This way of including additional data is not restricted to electrical data but the variogram parameters may be also inferred from for example available textural or lithological information. The benefit of the presented approach is twofold: (i) It honors the spatial statistics of the reservoir and (ii) it alters the posterior model by further reducing model ambiguity inherent to the inversion compared to classical (smooth model) regularization. The proof of concept is given by synthetic studies carried out on random fields from Gauss simulations with varying (an)isotropic scale lengths using different model (co)variogram functions. We also demonstrate the approach on electrical field data combined with borehole electromagnetic data from two artificial sea inlets in the nature reserve "The Westhoek" near the French-Belgian border. The electromagnetic logs were used to calculate an experimental vertical variogram characteristic of the study site. The results enabled to determine the extension of the salt water plume laterally, and significantly enhance its extension in depth, but also in terms of total dissolved solid content. These observations are in agreement with the hydrogeological situation at the site. A comparison with borehole data shows that the results are much more plausible than results obtained with a traditional smoothness constraint used as regularization operator. In conclusion, the incorporation of geostatistical information, vertical variograms in our case, in the inverse process improves imaging capabilities for reservoir characterization significantly. [less ▲]

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See detailLe divorce en droit international privé
Pfeiff, Silvia ULg

Conference (2010, December 14)

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

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

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

Detailed reference viewed: 41 (17 ULg)
See detailEcologie du paysage : patrons / processus / design
Mahy, Grégory ULg

Scientific conference (2010, December 14)

Detailed reference viewed: 28 (8 ULg)
See detailAUTOMATIC CARGO LOAD PLANNING
Limbourg, Sabine ULg

Conference (2010, December 14)

The aircraft loading problem is a real-world combinatorial optimisation problem highly constrained. Indeed, loading the aircraft so the gross weight is less than the maximum allowable is not enough. This ... [more ▼]

The aircraft loading problem is a real-world combinatorial optimisation problem highly constrained. Indeed, loading the aircraft so the gross weight is less than the maximum allowable is not enough. This weight must be distributed to keep the centre of gravity (CG) within specified limits. Balance control refers to the location of the CG. Both lateral and longitudinal balances are important in order to minimize fuel consumption and to satisfy stability and safety requirements. Moreover, an aircraft has usually several cargo compartments with specific contours and structural limitations such as floor loading, combined load limits and cumulative load limitations. The topic of this talk is the description of a mixed integer linear program for the problem of loading a set of Unit Loading Devices (ULDs) and bulk into an aircraft. An ULD can be a container or a pallet and is characterised by the type, contour, weight and height. Experimental results for real data sets show that the model achieves better balanced solutions in only a few seconds compared to the solution obtained by load masters. [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 ULg

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 detailBiologie au secondaire: quels enjeux, quels acquis, quels problèmes?
Hindryckx, Marie-Noëlle ULg

Scientific conference (2010, December 13)

Detailed reference viewed: 12 (1 ULg)
See detailApplication of magnetic susceptibility on different carbonate platforms
Da Silva, Anne-Christine ULg

Scientific conference (2010, December 13)

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See detailAssessing overall heating efficiency of office buildings
Parys, Wout; Bertagnolio, Stéphane ULg; Saelens, Dirk et al

in Lemort, Vincent; Andre, Philippe; Bertagnolio, Stéphane (Eds.) 8th Conference on System Simulation in Buildings (2010, December 13)

The current methodology applied to estimate system efficiencies oversimplifies the complex interaction between the building, the occupants and the system. By detailed modelling of the building and the ... [more ▼]

The current methodology applied to estimate system efficiencies oversimplifies the complex interaction between the building, the occupants and the system. By detailed modelling of the building and the system, it is possible to define system efficiencies at the building level as a function of the system type and the building characteristics. In this study, the performance of a simple heating system in a middle-sized office building is simulated. The monthly average total efficiency, defined at the building level, proves to be very well correlated with the monthly ratio of heat gains over heat losses of the building. At ratios over 0.6, the efficiency falls sharply. This is mainly due to declining control efficiency. This secondary effect can annul partly the targeted increase in energy efficiency of well insulated and airtight buildings. [less ▲]

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See detailChanges in functional interactions during anaesthesia-induced loss of consciousness
Schrouff, Jessica ULg; Perlbarg, Vincent; Boly, Mélanie ULg 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 detailAvant, pendant et après le terrain : récits d’un chercheur en sciences sociales
Escobar Jimenez, Kelly ULg

Scientific conference (2010, December 12)

À l’intérieur de ce texte, vous allez lire deux récits, l’un sur mes réflexions à propos de mon séjour en Amazonie équatorienne, l’autre présentant, en tant qu’exemples, quelques extraits de mon journal ... [more ▼]

À l’intérieur de ce texte, vous allez lire deux récits, l’un sur mes réflexions à propos de mon séjour en Amazonie équatorienne, l’autre présentant, en tant qu’exemples, quelques extraits de mon journal de terrain. En mobilisant deux styles différents d’écriture, je veux simplement montrer d’où viennent les envies de travailler sur un sujet, les arguments, les choix, les questions, les modes d’analyse… Dans « Les préalables », nous pouvons lire comment avant d’aller au terrain on s’arme de préjugés, de l’histoire, d’émotions, de catégories, de beaucoup trop de questions et on est censé mettre à l’épreuve certaines compétences. La deuxième partie, « Pendant le terrain : choisir entre participer et observer », c’est pour réfléchir à propos de notes prises dans ma première semaine d’observation (sans intervention) sur le terrain : Comment prendre des notes tout en participant des situations quotidiennes au terrain, comment ces notes m’ont aidé à renoncer à une démarche de recherche comparative et choisir de me concentrer uniquement sur les territoires huaorani. Dans le sous-titre suivant, « Après le terrain : quoi faire avec les données », je vous propose d’aller regarder les données (entretiens, journal de terrain et notes qui m’ont surprise…), poser des questions et envisager les matériels potentiels d’écriture. Finalement dans « Apprenti Sorcier » je réfléchis à propos de la manière dont le travail de terrain nous emporte et pourquoi il faut résister un peu. Il s’agit de ne pas oublier qu’une très grande partie du travail de terrain, avant, durant et après, est marqué par l’émotionnel. [less ▲]

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See detailStrategies of renal preservation after kidney surgery
Krzesinski, Jean-Marie ULg

Conference (2010, December 11)

Detailed reference viewed: 10 (2 ULg)
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See detailLa question des sources néo-platoniciennes dans l'aristotélisme de Brentano
Boccaccini, Federico ULg

Conference (2010, December 11)

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See detailComa and head traumatism
Martin, Didier ULg

Conference (2010, December 11)

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

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 ▲]

Detailed reference viewed: 238 (47 ULg)