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See detailEndocrine disruptors and parasitism: which effects on the sex behaviour of the amphipod Gammarus pulex ?
Fivet, Adeline; Horion, Sibylle; Thomé, Jean-Pierre ULg et al

Poster (2016, November 10)

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See detailBehaviour of bulk superconducting trapped field magnets subjected to magnetic fields with a transverse component
Vanderbemden, Philippe ULg; Caps, Hervé ULg; Vanderheyden, Benoît ULg et al

Conference (2016, November 10)

Bulk superconductors can be used as trapped field magnets with unprecedented performances. Such trapped field magnets find a variety of engineering applications, in particular for brushless rotating ... [more ▼]

Bulk superconductors can be used as trapped field magnets with unprecedented performances. Such trapped field magnets find a variety of engineering applications, in particular for brushless rotating machines and levitation devices. Compared to conventional permanent magnets, however, the magnetic field generated by a superconducting trapped field magnet is much more sensitive to the presence of an external field that is not perfectly aligned with the superconductor magnetic moment, i.e. when the external field has a transverse component. A situation where the superconductor experiences a magnetic field with a transverse component is likely to happen several times during running operation of the device. As an example, in a “trapped flux” synchronous machine, any variation of the load of the shaft may lead to a slight misalignment of the magnetic moment of the superconductor (placed in the rotor) with respect to the rotating field (generated by the stator). In such a situation, the superconductor is subjected to a rotating field, and the situation is likely to be different from a situation where the superconductor is subjected to a pure transverse field. In the present work, we aim at examining different scenarios (i.e. transverse or rotating) where the trapped field magnet is subjected to a transverse component. These configurations are examined both experimentally and numerically. The numerical model is used to determine the distribution of currents in the cross-section of the superconductor. We examine the conditions where the rotating field leads to a partial remagnetization of the sample and is therefore less detrimental that the application of a pure transverse field. We also show that the magnetic moment of the sample may behave differently that the field at the surface of the superconductor. Finally, we investigate the behavior of structures where the superconductor is attached to a thin ferromagnetic disk, and show the beneficial effect of such hybrid structures compared to the superconductor alone. Acknowledgements : The research was funded through the University of Liège (ULg) and an ARC grant for Concerted Research Actions, financed by the French Community of Belgium (Wallonia-Brussels Federation), under reference ARC 11/16-03. We greatly acknowledge M. Morita, S. Nariki and H. Teshima from Nippon Steel & Sumitomo Metal Corporation, Futtsu, Chiba. [less ▲]

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See detailReprint of Advancing the integration of corporate sustainability measurement, management and reporting
Maas, Karen; Schaltegger, Stefan; Crutzen, Nathalie ULg

in Journal of Cleaner Production (2016), 136

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See detailEtude des intermattes des herbiers à Posidonia oceanica
Abadie, Arnaud ULg

Doctoral thesis (2016)

Among Mediterranean marine ecosystems, Posidonia oceanica (L.) Delile seagrass meadows form a habitat playing an important ecological and economical role. They form heterogeneous seascapes influenced by ... [more ▼]

Among Mediterranean marine ecosystems, Posidonia oceanica (L.) Delile seagrass meadows form a habitat playing an important ecological and economical role. They form heterogeneous seascapes influenced by the impact of natural and anthropogenic phenomenon (of which the anchoring of leisure ships). These impacts lead to the formation of sand and bare mat patches called ‘intermattes’. By describing and using intermatte characteristics observed in Calvi Bay and more widely around Corsica, these PhD works precisely described intermatte and P. oceanica seascape dynamics in order to develop new methods of analysis. On the one hand, natural sandy intermattes formed by bottom currents show two types of border. Each has its own characteristics at the level of the sediments biogeochemistry. On the other hand, anthropogenic intermattes generated by anchoring (bare mat) present different sizes and shapes resulting from specific dynamics. They are not recolonized when the anchoring pressure remains high. A depletion of the substrate chemical quality occurs after the mechanical destruction. A new cartographic seascape index, the Patchiness Source Index, was created using the size and the nature of intermattes at large spatial scale. After a comparison of methods used for the study of intermattes, two new indices (Map Anchoring Index and Anchoring Index) for managers of coastal areas were developed to evaluate the impact of anchoring within P. oceanica meadows. [less ▲]

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See detailIntegrating corporate sustainability assessment, management accounting, control, and reporting
Maas, Karen; Schaltegger, Stefan; Crutzen, Nathalie ULg

in Journal of Cleaner Production (2016), 136

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See detailSpecial Volume: The Integration of Corporate Sustainability Assessment, Management Accounting, Control, and Reporting
Maas, Karen; Schaltegger, Stefan; Crutzen, Nathalie ULg

in Journal of Cleaner Production (2016), 136

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See detailArt, musique et intégration des réfugiés. Le cas de Naples en Italie
Mazzola, Alessandro ULg

Conference given outside the academic context (2016)

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See detailAudition au Parlement wallon sur la possibilité juridique d'interdire aux fonctionnaires locaux en contact avec le public le port de signes convictionnels ostentatoires
Behrendt, Christian ULg

Report (2016)

Audition comme expert par la Commission des pouvoirs locaux, du logement et de l'énergie du Parlement wallon, Namur, Parlement wallon, 10 novembre 2016.

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See detailRencontre en présence de l’auteur autour du livre de MARTINEZ-GROS G., Fascination du djihâd. Fureurs islamistes et défaite de la paix
Regibeau, Julien ULg; Attiya, Radouane ULg; Martinez-Gros, Gabriel

Conference given outside the academic context (2016)

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See detailBRAIN-TRAINS: Integrating the LCA methodology in and interdisciplinary project
Merchan Arribas, Angel ULg; Belboom, Sandra ULg; Léonard, Angélique ULg

in Proceedings of the 5th international conference on Life Cycle approaches (2016, November 09)

BRAIN-TRAINS is a project supported by the Belgian Federal Government that deals with the possible development of rail freight intermodality in Belgium, approaching this transport issue from an ... [more ▼]

BRAIN-TRAINS is a project supported by the Belgian Federal Government that deals with the possible development of rail freight intermodality in Belgium, approaching this transport issue from an interdisciplinary perspective. Life Cycle Assessment (LCA) methodology is used to analyse the sustainability impact of rail freight intermodality. The rail freight system has been divided in three sub-systems: rail transport operation, rail infrastructure and rail transport equipment (locomotives and wagons). First, a SWOT analysis of the intermodal rail freight transport has been performed to identify internal characteristics and possible external trends of the intermodal rail freight transport. The most important elements identified in the SWOT analysis have been selected through a Delphi-technique with the collaboration of a panel of expert. Thirdly, the selected elements have been translated into clear and measurable parameters, defining for every parameter an input value to quantify the scenarios. The parameters are measured in “tonne-kilometre”. Finally, three divergent Belgian scenarios with a time horizon set in 2030 have been built for further analysis. These scenarios are directly linked to the third strategic goal of the European Commission’s White Paper on transport (2011), which aims to shift the 30% of road freight over 300 km to other modes such as rail transport by 2030. As a result, a best, worst and medium case scenarios have been developed, depending on whether the 30% shift has been successfully accomplished, the status quo has been maintained or the goal has not been completely reached by 2030, respectively. The direct transport emissions and energy consumption during the rail transport activity have been determined using the LCA methodology. These LCA results have been used to improve the accuracy of existing commercial databases as Ecoinvent for the Belgian situation. [less ▲]

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See detailEven Dwarfs Started Small : an allegorical film
Jousten, Lison ULg

Scientific conference (2016, November 09)

Short presentation and analytical proposals of Herzog’s film in the framework of an informal meeting-debate between PhD students from Concordia University and Université de Montréal.

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See detailBig data, machine learning, and optimization, for power systems reliability
Wehenkel, Louis ULg

Scientific conference (2016, November 09)

How to combine physical models with observational data for ensuring power systems reliability, by leveraging simulation, optimisation, and machine learning.

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See detailLes Bandes détournées de Jochen Gerner et Ilan Manouach: entre destruction et engendrement
Crucifix, Benoît ULg; Dozo, Björn-Olav ULg

Conference (2016, November 09)

Occupant tout les deux une position liminale du champ de la bande dessinée, Jochen Gerner et Ilan Manouach se sont, chacun à leur manière, livrés à des expériences réflexives de destruction de l'image en ... [more ▼]

Occupant tout les deux une position liminale du champ de la bande dessinée, Jochen Gerner et Ilan Manouach se sont, chacun à leur manière, livrés à des expériences réflexives de destruction de l'image en bande dessinée par le détournement. Ainsi, avec ses projets tels que TNT en Amérique, Abstraction (1941-1968), ou Le Panorama du Feu, Jochen Gerner opère par la technique du recouvrement une relecture d'albums classiques et de petits formats populaires, attirant l'attention sur certains motifs graphiques, abstraits ou figuratifs des objets détournés. Plus en phase avec l'héritage situationniste du détournement, Ilan Manouach intervient sur les œuvres appropriées pour en questionner les principes idéologiques : Katz interroge la métaphore animale au cœur de Maus, tandis qu'avec Les Schtroumpfs noirs, il retourne au thème de la représentation en imprimant l'album de Peyo entièrement en cyan. Moins politisé dans Riki fermier, Manouach y fait disparaître les personnages d'un album de Petzi pour ne garder que celui du pélican Riki, suivant un projet d'écriture à contrainte décrit comme « lipogrammatique ». Pour Gerner comme Manouach, la pratique du détournement touche directement à la matérialité de l'objet de bande dessinée, au sens où il y a une intervention physique sur les bandes dessinées détournées – que ce soit par recouvrement, retouche ou réimpression – qui se double d'un maintien du format de l'objet détourné (48 CC, pocket, pamphlet ou roman graphique). Le lecteur se retrouve ainsi face à une dé-familiarisation d'un objet pourtant connu et reconnu dans sa matérialité. Cette expérience conscientise un acte réflexif de destruction : les images d'origine se voient recouvertes de noir, rayées, masquées, retouchées, effacées, défigurées. Tout en étant extrêmement opaque, ce rapport à la matérialité est cependant différent d'autres formes de « graphiation » qui attirent l'attention sur une gestuelle physique, sur les traces de la main. Ces deux pratiques du détournement mettent en scène une destruction d'images, dont les livres en portent la trace, donnant lieu à une traçabilité différente d'une graphiation qui mettrait en avant la patte graphique du dessinateur. La mesure destructrice de cette acte de détournement se retrouve d'ailleurs en prises avec le dispositif juridique du copyright, comme l'atteste la réaction des ayant-droits à Katz, envoyé au pilon. Face à ces deux formes de destruction (destruction de l'œuvre détourné et, retour du bâton, pilonnage du détournement), MetaKatz s'offre une double portée réflexive qui couvre toute la portée du geste destructeur au cœur du détournement, un acte qui se veut en même temps être une forme d'engendrement, puisqu'il ouvre à de nouveaux dispositifs, à de nouvelles images, et à de nouvelles lectures. Notre communication mettra donc en parallèle les œuvres d'Ilan Manouach et de Jochen Gerner afin d'examiner comment la question de la destruction se trouve au cœur du détournement, et de façon plus spécifique, comment celle-ci relève d'un rapport complexe à la matérialité du médium dont nous étudierons les enjeux. [less ▲]

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See detailLa tradition textuelle de Gerard du Frattre, un fragment d’histoire littéraire ?
Lambert, Adélaïde ULg

Conference (2016, November 09)

Detailed reference viewed: 15 (1 ULg)
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See detailBulk high-temperature superconducting hollow cylinders used for magnetic shielding: effect of an initial trapped field on the shielding performances.
Wera, Laurent ULg; Fagnard, Jean-François ULg; Hogan, Kevin ULg et al

Poster (2016, November 09)

Bulk High-Temperature Superconductors (HTS) can be used as efficient passive magnetic shields with performances exceeding those of conventional ferromagnetic materials. The most common geometry for a ... [more ▼]

Bulk High-Temperature Superconductors (HTS) can be used as efficient passive magnetic shields with performances exceeding those of conventional ferromagnetic materials. The most common geometry for a superconducting shield is a bulk hollow cylinder. In this work, we investigate the magnetic shielding properties when the tube is not in the virgin state. Such a situation happens in practice when the tube has been initially subjected to a first magnetic field. The induced superconducting currents that are flowing in the tube generate a trapped magnetic moment which may deteriorate the shielding of a second field. Here we study experimentally how an initial trapped moment affects the shielding of a magnetic field, when they are both perpendicular to each other. In particular, we focus on the effect of an axial trapped moment on the transverse shielding performances and on the effect of a transverse trapped field on the axial or the transverse shielding performances. Finally, we show how the pristine state of the tube can be restored when applying an external field of adequate amplitude. The consequence for practical applications is that it is possible to recover shielding properties similar to those obtained in the virgin state without heating up the shield above its critical temperature TC. [less ▲]

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See detailTrapped populations: A failure to adapt?
Zickgraf, Caroline ULg

Conference given outside the academic context (2016)

Climate change is now widely recognized as a key driver of migration and displacement in many regions of the world. At the same time, the public health community is investigating the health impacts of ... [more ▼]

Climate change is now widely recognized as a key driver of migration and displacement in many regions of the world. At the same time, the public health community is investigating the health impacts of climate change, but these three dimensions have not often been linked. Climate and migration have got a complex, non-linear and unpredictable relationship that is caused by or causes many issues but also opportunities. Migration related to climate change impacts health, but at the same time it can create opportunities to improve health security. As an example for adverse health effects, the (re)mergence of vector-borne diseases driven by climate change might be amplified by migration flows to new territories. If food security has been addressed many times as a direct consequence of disruption of agricultural activities, other socio-economical, anthropological and political issues are often set aside. On the other hand, migration could mean better life and better access to health services. Adopting a transdisciplinary approach could help understand the unclear and unpredictable nature and dynamics of human migration as a consequence of climate change. This conference will bring together scientists and experts to share, better understand, and advise, through a transdisciplinary approach, some tangible solutions to enhance the health context of climate migrants. The two round table topics will include: migration as an adaptation strategy against climate change, climate migration and its impacts on health as well as open questions aimed at discussing the future research priorities for global health. [less ▲]

Detailed reference viewed: 18 (1 ULg)