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See detailFinite element formulation and couplings
Habraken, Anne ULg; Collin, Frédéric ULg

Conference (2013)

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See detailRestoration of the campos rupestre, Neotropical mountain grasslands (Brazil)
Le Stradic, Soizig ULg; Buisson, Elise; Fernandes, Geraldo Wilson

Conference (2013)

Detailed reference viewed: 16 (2 ULg)
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See detailIsotope shifts and hyperfine structure of the Fe I 358.1 nm line
Huet, Nicolas ULg; Pettens, Manon; Krins, Stéphanie ULg et al

Conference (2013)

Detailed reference viewed: 55 (2 ULg)
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See detailMicro-CT for first line screening of the scaffold material-, cell-and donor-variability on the ectopic bone forming capacity of tissue engineering constructs
Geeroms, Carla; Roberts, Scott; Van Hove, Astrid et al

Conference (2013)

Detailed reference viewed: 13 (1 ULg)
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See detailAutonomie en droit de l'établissement
Sibony, Anne-Lise ULg

Conference (2013)

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See detailEstrogens and tumor microenvironment
Pequeux, Christel ULg

Conference (2013)

Detailed reference viewed: 19 (2 ULg)
See detailPierre Verstraeten : les articles des Temps Moderne (dialectique et structuralisme)
Caeymaex, Florence ULg; de Coorebyter, Vincent; Ireland, John et al

Conference (2013)

Detailed reference viewed: 103 (1 ULg)
See detailDe rol van het slachtoffer
Franssen, Vanessa ULg

Conference (2013)

Detailed reference viewed: 12 (1 ULg)
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See detailStress oxydant et déclin fonctionnel
RICOUR, Céline ULg; PETERMANS, Jean ULg

Conference (2013)

Detailed reference viewed: 53 (9 ULg)
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See detailLes non-publics au musée: un exemple de discrimination dans le domaine de la culture
Ghebaur, Cosmina ULg

Conference (2013)

Mes travaux portent sur les non-publics de la culture (Ancel & Pessin, 2004), ces personnes en situation, à l'instant t, de non-pratique culturelle, de non-contact avec un objet culturel donné. Je les ... [more ▼]

Mes travaux portent sur les non-publics de la culture (Ancel & Pessin, 2004), ces personnes en situation, à l'instant t, de non-pratique culturelle, de non-contact avec un objet culturel donné. Je les aborde sous l'angle de leur fabrication institutionnelle, à savoir en tant qu'ils sont produits par les institutions chargées de mettre en œuvre sur un territoire donné les politiques culturelles les concernant. Et c'est là où stigmatisation, stéréotypage, discrimination interviennent, en détournant de leur but initial des dispositifs visant à créer des liens, du contact, du rapprochement entre des populations d'une part, des œuvres et équipements de la culture savante d'autre part. Cette communication est construite sur une étude de cas : l'analyse d'une visite au musée effectuée par un groupe d'un centre social de la banlieue parisienne. [less ▲]

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See detailModelling of gas migration in clay formations
Gerard, Pierre; Charlier, Robert ULg; Radu, Jean-Pol ULg et al

Conference (2013)

Detailed reference viewed: 20 (0 ULg)
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See detailLe point sur l'indemnisation des usagers faibles (article 29bis)
Kohl, Benoît ULg

Conference (2013)

Detailed reference viewed: 9 (2 ULg)
See detailImpact of partial albumen removal on posthatch performance of laying hens
Willems, E.; Franssens, L.; Koppenol, A. et al

Conference (2013)

Detailed reference viewed: 4 (1 ULg)
See detailDiskrete Modellierung kondensierter Phasen
Wallek, T; Pfleger, M; König, L M et al

Conference (2013)

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See detailStress psycho-social et cerveau
Scantamburlo, Gabrielle ULg

Conference (2013)

Detailed reference viewed: 87 (11 ULg)
See detailDiscrete Modelling - a Statistical Approach to account for Detailed States of Individual Molecules
Wallek, T; Pfleger, M; König, L M et al

Conference (2013)

Detailed reference viewed: 2 (0 ULg)
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See detailImagerie encéphalique et perception du mouvement
Thibaut, Aurore ULg

Conference (2013)

Detailed reference viewed: 14 (1 ULg)
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See detailLes nouvelles règles d'exécution des marchés publics
Kohl, Benoît ULg

Conference (2013)

Detailed reference viewed: 15 (0 ULg)
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See detailRéorganisation des enseignements destinés aux internes en fonction de leurs besoins
Lenoir, Anne-Laure ULg; Massart, Valérie

Conference (2013)

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See detailRecyclage et valorisation des déchets et sous-produits industriels en construction : conditions et expériences
Courard, Luc ULg

Conference (2013)

Le recyclage n'est pas un luxe ou une mode mais une nécessité, qui provient d'une constatation fort simple : nous vivons dans un monde limité. Contrairement à ce que nous avons cru fort, notre activité ... [more ▼]

Le recyclage n'est pas un luxe ou une mode mais une nécessité, qui provient d'une constatation fort simple : nous vivons dans un monde limité. Contrairement à ce que nous avons cru fort, notre activité humaine n'est pas infiniment développable, car bornée par des limites en termes d'énergie, de ressources naturelles, d'espace ou simplement de capacité d'adaptation de la nature. De cette constatation et de cette prise de conscience doit découler un comportement qui, essentiellement, est basé sur le respect que nous avons de nous-mêmes et donc de la nature (à ménager et non à aménager). Le recyclage, la réutilisation, le réemploi, la régénération ou la valorisation sont des comportements qui visent à minimiser l'énergie utilisée, à tirer un parti maximum des matériaux, à réduire les risques de pollution au moment de la fabrication, de l'utilisation ou de l'élimination de ces matériaux. D'une manière générale, cela signifie que l'on cherche à retarder le plus possible le moment où un objet devient un déchet. Cette démarche nécessite une vision d'ensemble de la vie du matériau ou de l'objet (Analyse du Cycle de Vie), au cours de laquelle un bilan est établi à chaque étape de vie - extraction des matières premières, fabrication, transformation, recyclage, élimination. Une saine politique des déchets s'articule autour de trois axes fondamentaux : • réduire le flux des déchets à la source, par la mise au point de procédés de fabrication nouveaux, appelés technologies propres, qui engendrent moins de flux polluants, et par l'action menée au niveau de la consommation, en favorisant l'utilisation minimale de produits jetables et maximale d'éco-produits ; • accroître la récupération et la valorisation : la récupération consiste à sortir un produit du circuit production-évacuation conduisant à la mise en décharge, et la valorisation procède de plusieurs manières : o le recyclage, qui consiste à refaire le même produit que le produit initial (bouteilles en verre) ; o la réutilisation, qui consiste à fabriquer un autre produit que celui qui a donné naissance au déchet (bouteilles en PVC pour la fabrication de jouets) ; o le réemploi, qui consiste à prolonger la durée de vie d'un produit (bouteilles consignées) ; o la régénération, qui consiste à redonner au déchet les qualités et propriétés du produit initial par un ou plusieurs procédés adaptés (purification des huiles de vidange) ; o la valorisation énergétique, par incinération. • éliminer et traiter proprement les déchets, c'est-à-dire transformer le déchet pour qu'il n'ait plus d'impact négatif sur l'environnement (procédés d'inertification, mise en Centre d’Enfouissement Technique). Cette troisième étape est l'étape ultime et n'intervient que si toutes les autres possibilités ont été envisagées. S'il n'est pas possible de supprimer la production de déchets, sous-produits ou résidus industriels ou urbains, il convient alors de définir les meilleures conditions de valorisation. Presque toutes les activités industrielles portant atteinte aux ressources naturelles et dégradant l'environnement, le recyclage et la valorisation des déchets est un devoir autant qu'une nécessité. En effet, au cours des dernières années, les besoins croissants en matériaux de construction ont amené un épuisement des ressources de matériaux traditionnellement utilisés dans le secteur. La distance de transport entre le lieu de production et le site de construction ne cesse donc d'augmenter. Outre leur demande en matériaux de construction, les mêmes zones se caractérisent aussi par une importante production de déchets industriels et urbains dont l'évacuation est peu compatible avec l'environnement. On doit donc les verser dans des C.E.T., où il faut payer une redevance. A titre d’exemple, pour une démolition et une reconstruction routière, dans le cas où la nouvelle construction suit immédiatement la démolition, si le recyclage est possible sur site, l'économie totale des matériaux peut atteindre 50 % se répartissant comme suit : • 70 % dans la réduction des frais de transport ; • 20 % dans le coût moins élevé des matériaux ; • 10 % en évitant les frais de mise en décharge. On voit donc l'intérêt économique qu'il y a d'aborder les opérations de démolition et de reconstruction de façon coordonnée. Mais c'est le transport même qui peut être le facteur limitatif majeur à la réutilisation des déchets. Son prix est fonction de la quantité transportée et de la distance, indépendamment de la valeur marchande du produit transporté car il en coûte autant de transporter des déchets ou des matériaux de bonne qualité : il n'est donc pas intéressant de transporter des produits de faible valeur marchande sur des grandes distances. Le recyclage sera donc d'autant plus intéressant que: • la zone de décharge est plus éloignée ; • le coût du versage est élevé ; • les matières premières qui pourraient être remplacées par des déchets sont d'un approvisionnement difficile et / ou coûteux. Un autre facteur limitant la réutilisation est, ce que l'on pourrait appeler de façon péjorative, le réglementarisme: pour qu'un matériau puisse être utilisé dans le génie civil ou le bâtiment, il doit rencontrer certaines "spécifications". Cela entraîne, dans le cas envisagé de la réutilisation de déchets, à se retrouver dans la situation où un matériau n'a pas de spécifications car il est nouveau et peu utilisé, et il n'est pas ou peu utilisé car il n'est pas couvert par des spécifications ! Seules la recherche et la volonté de changement permettent de sortir de ce cercle vicieux. Ces considérations ont pour avantage de montrer que, dans tous les cas, il convient d'évaluer l'opportunité de la réutilisation des déchets à plusieurs niveaux : • évaluation technique : o caractérisation des déchets : propriétés physiques, mécaniques et chimiques ; o durabilité et évolution dans le temps ; o constance des performances du déchet ; • évaluation logistique et économique : o endroit de production des déchets et transports ; o conditionnement ; o quantité produite et constance de production ; • évaluation écologique et économique : o diminution des quantités mises en décharge ; o obligation d'élimination d'un déchet. On ne recycle donc pas n'importe quoi, à n'importe quel prix et n'importe comment ! Les besoins du génie civil sont en général de quatre ordres principalement, à savoir les: • matériaux, sur lesquels pèsent de faibles exigences et consommés en grande masse, consommés en grandes masses dans les remblais mais transportables sur de faibles distances en raison des coûts; • granulats, qui doivent répondre à des spécifications diverses selon la place qu’ils occuperont dans les structures et les techniques de traitement utilisées. Les exigences de qualité peuvent à ce niveau devenir élevées, voire sévères pour les couches de surface, pour conduire à des produits finis de qualité identiques à celle des matériaux traditionnels; • liants, qui doivent répondre à des spécifications bien précises et dont les propriétés doivent rester constantes dans le temps. Employés en petite quantité et concurrentiels de produits coûteux (ciments, bitumes), ils peuvent connaître des conditionnements préalables à l’emploi et supporter des coûts de transport plus élevés; • activants, qui seront utilisés en petites quantités, ce qui peut poser des problèmes de collecte, stockage, distribution et régularité. Si l'intérêt technico-économico-écologique apparaît clairement dans le rapport qui existe entre l'offre en sous-produits et les besoins du génie civil, il est aussi clair que l'utilisation de tels produits pose un certain nombre de difficultés : • aptitude technique à entrer dans la composition de matériaux (normes); • aptitude à l'emploi de matériaux utilisant ces déchets; • optimisation économique des emplois possibles; • incidence sociale sur l'emploi dans les entreprises fournissant des produits nobles; • effet sur l'environnement. L’exposé portera sur des exemples de recyclage et de valorisation d’une série de sous-produits industriels et de déchets : • laitiers de haut-fourneau et scories d’aciérie ; • cendres volantes de centrales thermiques au charbon ; • gypses résiduaires ; • caoutchoucs ; • bétons et revêtements bitumineux ; • papiers, cartons et matières plastiques ; [less ▲]

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See detailParallel Finite Element Assembly with High Order Whitney Elements on Curved Meshes
Marsic, Nicolas ULg; Geuzaine, Christophe ULg

Conference (2013)

There is a growing consensus that state of the art finite element technology requires, and will continue to require too extensive computational resources to provide the necessary resolution for complex ... [more ▼]

There is a growing consensus that state of the art finite element technology requires, and will continue to require too extensive computational resources to provide the necessary resolution for complex high-frequency electromagnetic compatibility (EMC) computations, even at the rate of computational power increase. The complexity of such EMC problems has indeed been rapidly increasing for the last few years, with ever tighter constraints on accuracy due to more stringent regulations, more elaborate and interconnected systems leading to very complex geometrical configurations, and wider frequency spectra to simulate due to the increasing frequency of power controllers. The requirement for high resolution naturally leads us to consider methods with a higher order of grid convergence than the classical (formal) 2nd order provided by most industrial grade codes. This indicates that higher-order discretization methods will replace at some point the finite element solvers of today, at least for part of their applications. In this talk we will present our research efforts towards developing a new generation of electromagnetic finite element solvers making efficient use of new massively parallel and hybrid computing architectures to assemble high-order Whitney elements on high-order (curved) meshes. [less ▲]

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See detailQuelles perspectives pour le financement des entrepreneurs ruraux au Cameroun : réflexions au départ d'une recherche menée dans le Centre du Cameroun ?
Lebailly, Philippe ULg; Ahouissou, Brice Anicet

Conference (2013)

La présente recherche se propose de faire un diagnostic clair du financement de l’entrepreneuriat rural dans le but de proposer aux décideurs et à toutes les personnes intéressées, des solutions ... [more ▼]

La présente recherche se propose de faire un diagnostic clair du financement de l’entrepreneuriat rural dans le but de proposer aux décideurs et à toutes les personnes intéressées, des solutions pertinentes et efficaces en vue d’améliorer la situation d’ensemble. L’intérêt de cette recherche est qu’elle a permis d’identifier les moyens pour un développement durable de l’entrepreneuriat rural, sans lequel il est difficile d’améliorer les conditions de vie des populations rurales, et par conséquent de réduire efficacement la pauvreté. [less ▲]

Detailed reference viewed: 81 (4 ULg)
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See detailState instability in sustained attention is modulated by a PER3 polymorphism during sleep deprivation
Maire, Micheline; Reichert, Carolin; Gabel, Virginie et al

Conference (2013)

Detailed reference viewed: 11 (0 ULg)
See detail"Poor people are never right": legal consciousness and the families' accounts of Beninese justice
Andreetta, Sophie ULg

Conference (2013)

“Poor people are never right”. In Benin, most citizens are rather skeptical towards their justice system. Common discourses and representations often depict notaries as forging wills; lawyers as likely to ... [more ▼]

“Poor people are never right”. In Benin, most citizens are rather skeptical towards their justice system. Common discourses and representations often depict notaries as forging wills; lawyers as likely to spin out a case to their own advantage. Judges are portrayed as corrupt and their clerks as too poorly paid to withstand the same "temptations". And yet Beninese state courts are constantly utilized. In 2005, 7,530 civil cases were introduced before the various first degree courts of Benin, 11,367 of them in 2010.This is why rather than concentrating on state bureaucrats and their practices, I chose to focus on the customers, their perception of public service and what use they ultimately make of it. As a striking example, inheritance disputes, although entrenched in family dynamics and witchcraft threats, are constantly brought up before the jurisdictions. I will therefore try and understand the processes of those families who decide to “refer to the state” in inheritance conflict cases. I will first focus on what happens “before the law” and on family negotiations. Why do these fail and what are the reasons justifying – or delaying – legal action? I will then overview people’s experiences of Beninese public services, wondering about the access and cost of justice. I will focus on the end result, and on the customers’ satisfaction towards this constantly criticized, yet also increasingly mobilized bureaucracy. Eventually, I will analyze people’s discourses regarding Justice and the State, all of which using both participant observation in Court and interviews with family members and judiciaries. In other words, I will focus on legal consciousness within Beninese families, on how the laws and the institutions supposed to be enforcing them are perceived, experienced and utilized. [less ▲]

Detailed reference viewed: 57 (3 ULg)
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See detailCold Adaptations in Proteins from Psychrophiles
Feller, Georges ULg

Conference (2013)

Detailed reference viewed: 64 (4 ULg)
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See detailOptiMIR : de nouveaux outils de management des exploitations laitières grâce au spectre moyen infra-rouge du lait
Grelet, Clément ULg; Fernandez Pierna, Juan Antonio; Dehareng, Frédéric et al

Conference (2013)

Detailed reference viewed: 31 (4 ULg)
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See detailThe way we learn this knowledge that dominates all other knowledge
Geurten, Marie ULg; Catale, Corinne ULg; Meulemans, Thierry ULg

Conference (2013)

Although much is known about how children use memory strategies, far fewer studies have examined how knowledge of those strategies improves during childhood or which variables are involved in this ... [more ▼]

Although much is known about how children use memory strategies, far fewer studies have examined how knowledge of those strategies improves during childhood or which variables are involved in this development. In this experiment, a scale designed to assess three main aspects of metamemory knowledge (internal strategy knowledge, external strategy knowledge, general knowledge) and a battery of executive tasks was administered to a group of 80 children aged 4, 6, and 11. At the same time, variables such as intelligence, vocabulary and parental education level were also taken into account. Stepwise analyses carried out on each of the three metamemory subscales showed that executive functions of inhibition and response monitoring, as well as verbal fluency, were single predictors of internal strategy knowledge for children aged 6 and 11. Only verbal fluency predicted external strategy knowledge. None of the variables included in the analyses could explain the children’s general knowledge of memory functioning or the 4-year-old group’s performance on any of the three subscales. Results are discussed in terms of ease of monitoring, access to explicit knowledge and influence of implicit learning. [less ▲]

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See detailColor terms in medieval artists’ recipe books : diversity and variability. The puzzling case of ‘Paris Red’
Neven, Sylvie ULg

Conference (2013)

Occurrences of historical color terms can be found in several old written sources and, notably, in medieval artists’ recipe books. In parallel to the physical descriptions of pigments and colorants, these ... [more ▼]

Occurrences of historical color terms can be found in several old written sources and, notably, in medieval artists’ recipe books. In parallel to the physical descriptions of pigments and colorants, these writings deliver information about their optical characteristics, conservation, (in)compatibility with other sorts of materials, and ageing properties. Examination conducted within a corpus of more than 400 recipe books, dating from 1300 to 1650 and produced in Northern Europe, has shed light on the diversity of color denominations and the several ways of designating a coloring material, such as pigments and colorants. Color terms used in artists’ recipe books may have had various meanings and correspond to different hues, subtances or qualities. Moreover, the concept or the material designated by a color term may change, not just in time and space, but from one recipe to another even if they derive from the same source. Looking through a large number of instructions dedicated to colors, it is possible to propose some categories for describing the different sorts of nomenclature and their nature, and it is also possible to suggest the range of pigments and colorants that one word could refer to. Variety and importance given to color names can also be put in relation with the importance and the symbolic value accorded to a coloring agent or a color. This paper will focuss on the various appellations of red color. In particular, it will examine in depth the puzzling name “Paris Red”. [less ▲]

Detailed reference viewed: 56 (3 ULg)
See detailDietary n-3 fatty acid transfer from broiler breeder to yolk, residual yolk and liver of offspring
Koppenol, A.; Delezie, E.; Everaert, Nadia ULg et al

Conference (2013)

Detailed reference viewed: 31 (1 ULg)
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See detailDepth-averaged flow modeling in curvilinear coordinates
Stilmant, Frédéric ULg; Egan, Raphael ULg; Archambeau, Pierre ULg et al

Conference (2013)

A set of depth-averaged equations in curvilinear coordinates is presented. This extension of the standard shallow water equations to curved flows and to jet flows leads to a model which is very versatile ... [more ▼]

A set of depth-averaged equations in curvilinear coordinates is presented. This extension of the standard shallow water equations to curved flows and to jet flows leads to a model which is very versatile. Its applicability and precision is assessed by the computation of a discharge coefficient and the nappe profiles for a sharp crested weir. Results confirm the relevance of the approach. Even if not taken into consideration in the set of equations presented here, a discussion shows that head losses could be included in the model so as to extend its application field to many civil and environmental engineering applications. [less ▲]

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See detailRelation plante-abeille: les contraintes chimiques d'une exploitation réciproque
Vanderplanck, Maryse ULg; Michez, Denis

Conference (2013)

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See detailStandardisation of milk MIR spectra: a first step to create new tools of dairy farm management
Grelet, Clément ULg; Fernandez Pierna, Juan Antonio; Dehareng, Frédéric et al

Conference (2013)

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See detailImpact of urban form on daily travel: a comparative analysis
Cools, Mario ULg; Laterrasse, Jean; Le Néchet, Florent

Conference (2013)

Along with the emergence of Mega City Regions (MCRs) in Europe, mobility patterns have become increasingly polycentric. Since urban planning issues are especially difficult at this scale, it is important ... [more ▼]

Along with the emergence of Mega City Regions (MCRs) in Europe, mobility patterns have become increasingly polycentric. Since urban planning issues are especially difficult at this scale, it is important to assess the impact of the different evolutions in Mega City Region on important indicators such as daily travel times and daily travel distances. Therefore, in this study the differences between monocentric and polycentric MCRs in terms of travel distances and travel times for constraint and unconstraint mobility are investigated. To this end, four different MCRs were selected for the study: the Paris and Rhine-Ruhr metropolitan areas and the Randstad and Belgian Mega-City Region. For these MCRs regions, the travel times and distances were derived from the national travel surveys. Special attention was paid to the harmonization exercise based, calculating the daily travel distances for 7 different purposes and 9 different transport modes. With respect to the socio-demographics, the least common denominator was used to define comparable socio-demographics. Results indicate clear differences between the monocentric and polycentric regions, especially with respect to shopping and leisure trips. In addition, some policy interventions could be defined based upon the results of the disaggregation based on the socio-demographics. [less ▲]

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See detailAvailable technical flexibility for balancing variable renewable energy sources: case study in Belgium
Quoilin, Sylvain ULg; Verbruggen, Aviel

Conference (2013)

The world is facing a historical increase in energy demand and energy consumption. Renewable energy sources are considered as a solution to both environmental issues and increasing energy demand, but ... [more ▼]

The world is facing a historical increase in energy demand and energy consumption. Renewable energy sources are considered as a solution to both environmental issues and increasing energy demand, but present high variability and low predictability. Variability and uncertainty are familiar aspects of all power systems. However, the increase of the share of renewable sources leads to new needs in terms of flexible resources. These resources can be provided by four different means: 1. Dispachable power plants (i.e with ramp up and ramp down capabilities) 2. Storage systems, mainly in the form of pumping stations. 3. Grid interconnections between countries 4. Demand side management. The present work focuses on the high voltage transmission grid, and assesses the amount of technical flexibility available to balance the fluctuations of Variable Renewable Energy (VRE) sources. The model is based on a dynamic programming unit commitment algorithm (i.e. accounting for each individual power plant on the grid) and focuses more particularly on the flexibility potential of power plants and of energy storage. The selected time resolution is one hour. Residual load curves are established on the basis of actual consumption for the year 2012 and on different scenarios of solar and wind penetration. The method is applied to the case of Belgium, based on actual disaggregated power consumption curves throughout the year, and on the current power generation park. Due to the difficulty to assess the flexible resource available through interconnections, the Belgian grid is considered isolated. It should also be noted that this work does not address the voltage stability issue: it focuses on balancing issues only (i.e. time constants varying between minutes and days). Simulation results show the VRE penetration potential is higher than usually considered. Bottlenecks therefore seems to be related to improper or inefficient market mechanisms, unable to take full profit of the technical flexible resource available. [less ▲]

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See detailLithic industries as chronological data: the example of Grotte du Renne VII
Dinnis, Rob; Flas, Damien ULg

Conference (2013)

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See detailLiquid-liquid phase separation in batch settling with inclined plates
Mungma, N; Chuttrakul, P; Pfennig, Andreas ULg

Conference (2013)

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See detailUses and misuses of alum in medieval and pre-modern artists’ recipe books
Neven, Sylvie ULg

Conference (2013)

During medieval and pre-modern times, potash alum was used for a variety of purposes in artistic and craft contexts. Alum was one of the most important chemical compounds involved in the dyeing of ... [more ▼]

During medieval and pre-modern times, potash alum was used for a variety of purposes in artistic and craft contexts. Alum was one of the most important chemical compounds involved in the dyeing of textiles and the manufacture of organic lakes, used in painting and illuminating techniques. Knowledge on the various uses and functions of alum can be gathered by the studying of collections of recipes, of which hundreds of examples have survived from the Middle Ages and the pre-modern period. This study is based on a corpus of 450 recipes books mostly produced in Northern Europe between the 14th and the end of the 16th century. Within these sources, alum is involved in a large field of technological procedures. It acts as a siccative agent in the preparation of oils and varnishes. It was employed in the making of glues, in the coloration and the treatment of various supports (bones, parchment, paper, wax, …), in the manufacture of pigments, such as verdigris, and the purification of ultramarine. This paper details the diversity of alum applications, as described within recipe books. It will notably focus on the varied roles played by alum in the preparation and conservation of a range of colorants which were typically preserved on small pieces of linen cloth and known under the appellation of ‘tüchlein’ colors. In addition, through these collections of recipes we learn that alum not only served for artisanal purposes but it was also used in alchemical, medical, pharmaceutical and house-economical contexts. For example, alum is cited within alchemical instructions, as being involved in the producing of artificial vermilion or in the tinting and gilding of metals. It was also used for imitating gold and silver, and notably employed in the production of aurum musicum. In parallel to this initial information, recipe books also provide us with data regarding the physical qualities of alum, the diverse states in which it was supplied and possible substitutes. They also deliver some clues concerning its various geographical provenances. Thus, these sources could serve to shed light on the multiple historical roles of alum but also help in accurately estimating its technical importance. Moreover, recipe books provide a source to investigate the multiplicity of alum appellations. Questions will be addressed such as: did these denominations reflect the plurality of uses of alum or were they related with the physical properties, quality grades or geographical origins of the alum product ? Finally this paper will try to establish the relevance of collections of recipes in reconstructing the history of alum. In so doing, it will consider how these sources can be related with other sort of historical sources and how they can illuminate each other. [less ▲]

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See detailQuelle est la valeur de la biodiversité ?
Dufrêne, Marc ULg

Conference (2013)

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See detailRacisme et antiracisme chez Etienne Balibar
Delruelle, Edouard ULg

Conference (2013)

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See detailHarmonisation of Construction Liabilities in the European Union
Kohl, Benoît ULg

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See detailDe Wet Breyne: hot topics
Kohl, Benoît ULg

Conference (2013)

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See detailModélisation de structures voiles en béton armé soumises à du cisaillement
Soufflet, Marc; Kotronis, Panagiotis; Collin, Frédéric ULg

Conference (2013)

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See detailÉtude du mécanisme d'électrooxydation de BH4- sur platine à bas potentiel
Olu, Pierre-Yves; Rouhet, Marlène; Bonnefont, Antoine et al

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See detailColour conText’ : a New Database of Artists’ Recipes
Neven, Sylvie ULg

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See detailEffects of neonatal DES and BPA exposure on the timing of female sexual maturation through neuroendocrine disruption.
Franssen, Delphine ULg; Ioannou, Yannis; Alvarez-Real, Alexandra et al

Conference (2013)

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See detailCalcium isotope fractionations from roots to shoots
Schmitt, A.-D.; Stille, P.; Labolle, F. et al

Conference (2013)

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See detailDiskrete Modellierung - ein statistischer Ansatz zur detaillierten Beschreibung molekularer Zustände
Wallek, T; Pfleger, M; Pfennig, Andreas ULg

Conference (2013)

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See detailRadiosynthesis and first small animal microPET imaging of [18F]UCB-H, a new fluorine-18 labelled tracer targeting synaptic vesicle protein 2A (SV2A)
Aerts, Joël ULg; Otabashi, Muhamed; Giacomelli, Fabrice ULg et al

Conference (2013)

Aim. We report the radiosynthesis and first rat microPET imaging of a new fluorine-18 tracer targeting the synaptic vesicle protein 2A, SV2A, identified as the binding site of the antiepileptic drug ... [more ▼]

Aim. We report the radiosynthesis and first rat microPET imaging of a new fluorine-18 tracer targeting the synaptic vesicle protein 2A, SV2A, identified as the binding site of the antiepileptic drug levetiracetam. Materials and Method. Two different nucleophilic radiosynthesis pathways were tested to obtain [18F]UCB-H, a no-carrier-added tracer in the 2-[18F]fluoropyridine family. The methods were automated on FastLab™ synthesizers. PET studies in rodents were carried out using male SD rats, imaged under isoflurane anaesthesia in a Siemens Concorde Focus 120 microPET scanner. Arterial input function was measured using an arteriovenous shunt method and beta microprobe system. All animal protocols were reviewed and accepted by animal ethical committees. Results and conclusion. A radiosynthesis yield of 30% was obtained (uncorrected for decay, 150 minutes of synthesis). Analytical methods were developed and validated to demonstrate that the quality of the tracer solution was compatible with in vivo injection. After intravenous injection, the tracer rapidly entered the brain, followed by rapid washout. PET imaging revealed high uptake of the tracer in the brain and spinal cord, matching the expected SV2A homogeneous distribution. Results indicate that [18F]UCB-H is suitable to quantify SV2A proteins in vivo and to estimate target occupancy of drugs targeting SV2A. Acknowledgments. The authors thank UCB Pharma SA Belgium for collaboration and the Walloon Region Belgium and the FRNS Belgium for financial support. [less ▲]

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See detailDefining optimal brightness temperature simulation adjustment parameters to improve Metop-A/AVHRR SST over the Mediterranean Sea
Tomazic, Igor ULg; Le Borgne, Pierre; Roquete, Hervé

Conference (2013)

Sea surface temperature (SST) multispectral algorithms applied to infrared (IR) radiometer data exhibit regional biases due to the intrinsic inability of the SST algorithm to cope with the vast range of ... [more ▼]

Sea surface temperature (SST) multispectral algorithms applied to infrared (IR) radiometer data exhibit regional biases due to the intrinsic inability of the SST algorithm to cope with the vast range of atmospheric types, mainly influenced by water vapor and temperature profiles. Deriving a SST correction from simulated brightness temperatures (BT), obtained by applying a Radiative Transfer Model (RTM) to Numerical Weather Prediction (NWP) atmospheric profiles and first guess SST, is one of the solutions to reduce regional biases. This solution is envisaged in the particular case of Metop-A Advanced Very High resolution (AVHRR) derived SST. Simulated BTs show errors, linked to RTM, atmospheric profiles or guess field errors. We investigated the conditions of adjusting simulated to observed BTs in the particular case of the Mediterranean Sea over almost one year. Our study led to define optimal spatio/temporal averaging parameters of the simulation observation differences, both during day and night and summer and colder season. Each BT adjustment has been evaluated by comparing the corresponding corrected AVHRR SST to the AATSR SST, that we adopted as validation reference. We obtained an optimized result across all defined conditions for a spatial smoothing of 15 deg and a temporal averaging between 3 and 5 days. Specifically, time series analyses showed that a standard deviation based criterion favors spatial smoothing above 10 deg for all temporal averaging, while a bias based criterion favors shorter temporal averaging during daytime (< 5 days) and higher spatial smoothing (>10 deg) for nighttime. This study has shown also the impact of diurnal warming both in deriving BT adjustment and in validation results, leading to more appropriate separate BT adjustment for day and night in areas and seasons of intensive diurnal warming conditions. [less ▲]

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See detailCurative and palliative treatments for patients with disorder of consciousness
Thibaut, Aurore ULg; HUANG, Wangshan

Conference (2013)

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See detailProperty prediction for diesel fuels based upon surrogates
Reiter, A M; Wallek, T; Pfennig, Andreas ULg

Conference (2013)

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See detailCharakterisierung des Koaleszenzsverhaltens in Extraktionskolonnen
Kopriwa, Nicole; Pfennig, Andreas ULg

Conference (2013)

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See detailSeagrass production: linking individual, community and ecosystem carbon fluxes
Santos, R; Silva, J; Olivé, I et al

Conference (2013)

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See detailPhotoferrotrophy and Fe-cycling in a freshwater column
Llirós, M; Crowe, SA; García-Armisen, T et al

Conference (2013)

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See detail"Saisir l'Etat" pour un conflit d'héritage au Bénin: la justice aux yeux des justiciables
Andreetta, Sophie ULg

Conference (2013)

« La justice, c'est la mafia ». Au Bénin, nombreux sont les sceptiques vis-à-vis des institutions judiciaires. L'imaginaire et les représentations communes du monde juridique dépeignent les notaires comme ... [more ▼]

« La justice, c'est la mafia ». Au Bénin, nombreux sont les sceptiques vis-à-vis des institutions judiciaires. L'imaginaire et les représentations communes du monde juridique dépeignent les notaires comme falsifiant les testaments et bradant les biens des héritiers, les avocats comme susceptibles de faire traîner un dossier à leur avantage. Les magistrats y sont décrits comme corrompus et les greffiers comme trop mal payés pour résister aux mêmes « tentations ». Et pourtant, les tribunaux du Bénin sont constamment surchargés. Uniquement en matière civile et traditionnelle, 7530 dossiers furent introduits dans les différents tribunaux de première instance du Bénin en 2005, 10 374 en 2009 et 11 367 en 2010. Autrement dit, les Béninois recourent en masse à cette justice tant décriée. Dans le cadre de cet article, j'ai choisi de me pencher sur un type de litiges bien particulier : celui des conflits successoraux. Ancrés dans les dynamiques familiales, au cœur de la sphère privée, ils sont pourtant massivement portés devant les tribunaux. Une situation d'autant plus paradoxale qu'il est de notoriété publique que « le pauvre n'a jamais raison ». Pour mieux comprendre ce paradoxe, je me pencherai sur le parcours de ces familles qui décident de « saisir l'Etat » pour régler leur succession. Il s'agira donc tout d'abord de s'intéresser à « l'avant recours au droit » et aux négociations familiales. Ensuite, aux raisons qui expliquent l'échec de ces dernières et qui poussent les familles à porter leur différent devant les tribunaux. Je m'intéresserai alors au parcours des justiciables et à leur expérience des services publics béninois, m'interrogeant notamment sur l'accès et le coût de la justice pour les parties. Je me pencherai sur le « résultat » et la « satisfaction » des usagers face à ce service public certes décrié, mais aussi constamment mobilisé. Enfin, c'est le discours des Béninois sur l'Etat et la Justice qui retiendra mon attention. En d'autres termes, je tenterai ici d'analyser la « conscience du droit » des familles béninoises, qu'il s'agisse des normes familiales ou du droit étatique, appliquées dans la sphère privée ou dans les tribunaux. [less ▲]

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See detailRapid evaluation of biobased synthesis pathways based on exergy balances
Frenzel, P E; Hillerbrand, R; Pfennig, Andreas ULg

Conference (2013)

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