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See detailAntiquité tardive et christianisme africains dans l'Africa romana : un bilan historiographique
Fialon, Sabine ULg

in Ruggeri, Paola (Ed.) L’Africa romana XX. Momenti di continuita e rottura : bilancio di 30 anni di convegni de l’Africa romana (in press)

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See detailIntroduction. II. The "Isiaci" and their images
Veymiers, Richard ULg

in Gasparini, Valentino; Veymiers, Richard (Eds.) The Greco-Roman Cults of Isis: Agents, Images and Practices. Proceedings of the VIth Conference of Isis Studies (Erfurt, May 6-8 – Liège, September 23-24, 2013) (in press)

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See detailSanti e re nelle feste francesi del 1622. Il Trionfo della luce sulla terra
De Marco, Rosa ULg

in Cousinié, Frédéric; Lemoine, Annick; Virol, Michèle (Eds.) Soleils baroques. La Gloire de Dieu et des Princes en représentation dans l’Europe moderne (in press)

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See detailUn chèvre-pied chez les Jésuites de Pont-à-Mousson. L’œuvre d’Hugues Sambin au XVIIe siècle
De Marco, Rosa ULg

in Chédeau, Catherine (Ed.) Autour de la figure d’Hugues Sambin. Menuisier-architecte du XVIe siècle (in press)

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See detailUtiliser les potentialités phénoménotechniques de la Théorie Anthropologique du Didactique : quel prix payer ?
Schneider-Gilot, Marguerite ULg

in Travaux relatifs à la Théorie Anthropologique du Didactique (Université de Toulouse) (in press)

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See detailFrom parts to whole and back again. The emblem system in the French Jesuit Festivals
De Marco, Rosa ULg

in Höpel, Ingrid; McKeown, Simon (Eds.) Emblems: Their Origins and their Impact. Selected Proceedings of the 10th International Conference of the Society for Emblem Studies (in press)

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See detailProblemi filologici per l'edizione di un epistolario cinquecentesco: il codice G 387 (277) della Biblioteca Bertoliana di Vicenza
Marconato, Claudia ULg

in CONVEGNO DELLA SFLI – SOCIETÀ DEI FILOLOGI DELLA LETTERATURA ITALIANA (in press)

Il manoscritto G 387 (277) della Biblioteca Bertoliana di Vicenza solleva alcune questioni relative alla filologia dei carteggi e alla cosiddetta 'filologia materiale: il codice contiene infatti un ... [more ▼]

Il manoscritto G 387 (277) della Biblioteca Bertoliana di Vicenza solleva alcune questioni relative alla filologia dei carteggi e alla cosiddetta 'filologia materiale: il codice contiene infatti un epistolario, intitolato «Libri tre delle lettere di M. Sebastiano Erizzo», oltre ad alcuni discorsi dello stesso autore, un erudito antiquario veneziano che negli ultimi anni ha riscosso un significativo interesse da parte di studiosi di diversa provenienza disciplinare. Sebastiano Erizzo è infatti l’artefice di una svariata serie di volumi a stampa: noto soprattutto per il suo trattato sulle medaglie degli antichi, fu un raffinato traduttore dal greco e un appassionato filosofo e si cimentò anche nella novellistica (»Le sei giornate»). Il codice nel quale sono conservate le lettere erizziane induce in particolare a interrogarsi sulla sua genesi: l’architettura sapiente con la quale sono state divise e disposte le missive, le nove mani che si alternano e la fascicolazione disordinata del manoscritto, unite alla volontà di stampa espressa in due lettere permettono di ipotizzare che esso fosse un libro pronto per la pubblicazione. La valutazione di una molteplicità di fattori contestuali dati dal testimone unico, specie in riferimento alla produzione, alla copia ed eventualmente alla fruizione del testo d’autore, ci permette di riproporre la costellazione di snodi critici che s’intrecciano e che ci spingono a discutere nuovamente i parametri dell’edizione critica del testo, strettamente connessi con il genere e lo stile del documento epistolare, ma anche pertinenti ad un uso tutto erizziano di fenomeni quali la paragrafatura, la punteggiatura, la segmentazione 'tipografica' del testo, che sollevano problemi di ordine pratico e teorico di notevole portata. [less ▲]

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See detailLouise de Savoie et la "Cène" de Léonard de Vinci
Fagnart, Laure ULg

in Brioist, Pascal (Ed.) Léonard de Vinci. Romorantin. Le projet oublié. Actes du colloque international tenu à Romorantin-Lanthenay les 3, 4, 5 et 6 juin 2010 (in press)

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See detailProbabilistic reliability management approach and criteria for power system real-time operation
Karangelos, Efthymios ULg; Wehenkel, Louis ULg

in Power Systems Computation Conference (in press)

This paper develops a probabilistic approach for power system reliability management in real-time operation where risk is a product of i) the potential occurrence of contingencies, ii) the possible ... [more ▼]

This paper develops a probabilistic approach for power system reliability management in real-time operation where risk is a product of i) the potential occurrence of contingencies, ii) the possible failure of corrective (i.e., post-contingency) control and, iii) the socio-economic impact of service interruptions to end-users. Stressing the spatiotemporal variability of these factors, we argue for reliability criteria assuring a high enough probability of avoiding service interruptions of severe socio-economic impact by dynamically identifying events of nonnegligible implied risk. We formalise the corresponding decision making problem as a chance-constrained two-stage stochastic programming problem, and study its main features on the single area IEEE RTS-96 system. We also discuss how to leverage this proposal for the construction of a globally coherent reliability management framework for long-term system development, midterm asset management, and short-term operation planning. [less ▲]

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See detailLes remèdes d'origine égyptienne utilisés dans la médecine vétérinaire antique
Marganne, Marie-Hélène ULg

in Ripoll-Gitton, Valérie (Ed.) La trousse du vétérinaire (in press)

Famous since the Odyssey (IV, 229-230) for its drugs, Egypt furnishes the Greek world with some medical substances already mentioned in the hippocratic treatises. Moreover, many Greek drug names have been ... [more ▼]

Famous since the Odyssey (IV, 229-230) for its drugs, Egypt furnishes the Greek world with some medical substances already mentioned in the hippocratic treatises. Moreover, many Greek drug names have been loaned from the Egyptian language, such as ἄμ(μ)ι for cumin, κίκι for castor-oil, κόμμι for gum, κῦφι for a complex preparation used for fumigation in cult practices, νίτρον for sodium carbonate, στίμμι for galena, σῶρυ for ferrous sulfate, and σάμψ(ο)υχον, for marjoram, whose name means “herb (sem) of Soukhos", another name for the crocodile god Sobek. The trade of drugs, spices and colourants, used in pharmacology, cosmetology, painting, cultual and magical practices, embalming rites and nutrition always flourished in Egypt and has intensified in Hellenistic and Roman times. As a continuation of the research on remedies of Egyptian origin in Greco-Roman pharmacopoeia, this article provides a list of Egyptian ingredients used in Greek and Latin veterinary prescriptions. The use of these substances is compared with recomandations from human medicine. Their availability and costs are also studied. [less ▲]

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See detailRestaurer la Lumière. Les effets luminodynamiques de la Tour cybernétique de Nicolas Schöffer à Liège
Verbeeck, Muriel ULg; D'Haenens, Manon ULg

in Lumière et patrimoine (in press)

Cette communication porte sur la nécessaire conservation préventive de la Tour Schöffer, en amont du chantier de restauration prévu pour 2015.

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See detailLe droit de préemption de la France sur le Congo Belge en 1960
Genin, Vincent ULg

in Actes du IXe Congrès de l'Association des Cercles francophones d'Histoire et d'Archéologie de Belgique (in press)

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See detailA fresh look on the limit on ultralight axion-like particles from SN1987A
Payez, Alexandre ULg

in 10th Patras Workshop on Axions, WIMPs and WISPs (in press)

We revisit the limit on very light axion-like particles (ALPs) from the absence of gamma rays coincidental with the neutrino burst from SN1987A. We use updated supernova simulations, modern models for the ... [more ▼]

We revisit the limit on very light axion-like particles (ALPs) from the absence of gamma rays coincidental with the neutrino burst from SN1987A. We use updated supernova simulations, modern models for the magnetic field inside the Galaxy, and a Primakoff cross section which takes into account proton-degeneracy and mass-reduction effects. We finally give an updated exclusion plot for the electromagnetic coupling of sub-eV ALPs, comparing our new bound with other limits as well as with future ALP searches. [less ▲]

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See detail« La Supplicatione di Italia al re di Francia. Sur un témoin retrouvé (ms. Firenze, Biblioteca Buonarroti, 95) »
Moreno, Paola ULg

in Encuentros / Desencuentros. Italia y España en los siglos XIV y XVI : Textos y contextos, Actes du Colloque Intarnational, México City. (in press)

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See detailÉclairer les enjeux de la reconstruction industrielle du bassin liégeois : l'apport des archives des Etablissements insalubres et dangereux (1919-1925)
Peters, Arnaud ULg; Defechereux, Olivier ULg; Destatte, Julien ULg

in Parmentier, Isabelle (Ed.) Actes des Deuxièmes Rencontres d'Histoire de l'Environnement en Belgique (Belgique, Luxembourg, Congo, Rwanda, Burundi) (in press)

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See detailGeorges Ier d’Amboise, amateur d'art
Fagnart, Laure ULg

in Provini, Sandra (Ed.) La Renaissance à Rouen. L'essor artistique et culturel des décennies 1480-1530 (in press)

Figure emblématique de la Renaissance rouennaise et normande, Georges Ier d’Amboise rassemble, on le sait, une bibliothèque exceptionnelle, notamment constituée de manuscrits ayant appartenu aux rois ... [more ▼]

Figure emblématique de la Renaissance rouennaise et normande, Georges Ier d’Amboise rassemble, on le sait, une bibliothèque exceptionnelle, notamment constituée de manuscrits ayant appartenu aux rois aragonais de Naples. Le cardinal s’intéresse également à l’architecture, comme peu de ses contemporains, privilégiant les formes et les fonctions nouvelles, spécialement celles en vigueur en Italie. Il participe aussi à la fortune française d’artistes italiens de renom, comme Andrea Mantegna, Léonard de Vinci, Pérugin ou Andrea Solario, dont il commande ou acquiert des œuvres afin de décorer ses demeures, le château de Gaillon en tête. Mais, alors que son rôle dans la diffusion, au nord des Alpes, des idées et des motifs venus d’Italie est indéniable, le portrait de Georges Ier d’Amboise amateur d’art comprend bien d’autres facettes. Prolongeant une recherche entamée à l’occasion de la parution de l’ouvrage Georges Ier d’Amboise 1460-1510. Une figure plurielle de la Renaissance (2013), cette communication entend revenir sur les objets et les œuvres d’art que l’on peut associer au mécénat et/ou aux possessions de l’archevêque de Rouen. Nous nous pencherons sur les productions italiennes qui sont liées à Georges Ier d’Amboise mais aussi sur les étoffes, les pièces d’orfèvrerie et les tableaux de chevalet, qui sont mentionnés en nombre dans les comptes de dépenses de la construction du château de Gaillon et dans les inventaires qui décrivent les biens meubles conservés dans les demeures du cardinal. L’analyse de ces sources – que jusqu’ici les historiens ont surtout utilisées pour restituer la chronologie du château de Gaillon, rétablir la distribution intérieure de la demeure ou décrire la célèbre bibliothèque du légat alors qu’elles se révèlent extrêmement précieuses pour présenter les collections du conseiller de Louis XII – montre que le goût de Georges Ier d’Amboise, bien que novateur, s’inscrit aussi dans la continuité de celui des amateurs français de la fin du Moyen Âge. [less ▲]

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See detailThe Profession of Printer in the Southern Netherlands before the Reformation. Considerations on Professional, Religious and State Legislations
Adam, Renaud ULg

in Soen, Violet; Vanysacker, Dries; François, Wim (Eds.) Censorship and Catholic Reform in the Early Modern Low Countries (in press)

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See detailDe l’emploi des démonstratifs et déictiques dans un corpus hagiographique de l’Antiquité tardive et du Haut-Moyen Age : l’apport de l’analyse des cooccurrents spécifiques à une étude linguistique
Joffre, Marie-Dominique; Longrée, Dominique ULg; Philippart de Foy, Caroline ULg

in Actes du XIe Colloque international sur le latin vulgaire et tardif (LVLT11), Oviedo, 1-5 Septembre 2014 (in press)

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See detailSymboles et abréviation chrétiens dans les papyrus littéraires grecs à contenu profane (IVe-VIIe siècles)
Carlig, Nathan ULg

in Derda, Tomasz; Urbanik, Jakub (Eds.) Proceedings of the 27th International Congress of Papyrology. Warsaw, 29 July - 3 August 2013 (in press)

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See detailRéflexivité et classes sémantiques dans le lexique verbal français
Mazziotta, Nicolas ULg; Stein, Achim

in XXXIII. Tagung des Deutschen Romanistenverbands (DRV) (in press)

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See detailL’utilisation thérapeutique et cosmétique des produits animaux d’origine égyptienne dans l’antiquité gréco-romaine
Ricciardetto, Antonio ULg

in Pardon-Labonnelie, Muriel; Boudon-Millot, Véronique (Eds.) Le teint de Phrynè. Thérapeutique et cosmétique dans l'Antiquité. Paris, Maison de la Recherche, 14-15 janvier 2016 (in press)

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See detailLe pari de la « Barrière des Pays-Bas » : chronique d’un échec politique et culturel annoncé
Lanneau, Catherine ULg

in Fickers, Andreas; Franz, Norbert; Laux, Stephan (Eds.) Répression, réforme et ordre nouveau à l’époque des révolutions (in press)

Parmi ses multiples dispositions tendant à canaliser une France perçue comme expansionniste, le congrès de Vienne a entériné la naissance d’un Royaume uni des Pays-Bas, amalgamant des territoires ... [more ▼]

Parmi ses multiples dispositions tendant à canaliser une France perçue comme expansionniste, le congrès de Vienne a entériné la naissance d’un Royaume uni des Pays-Bas, amalgamant des territoires aujourd’hui répartis entre la Belgique, le Luxembourg et les actuels Pays-Bas. Qu’on y voie une barrière contre la France, une sentinelle plantée au nord ou un boulevard pour l’Europe, les Low countries ont un rôle stratégique majeur. Mais la logique militaire ne peut faire abstraction des hommes et les réalités politiques, religieuses, linguistiques conduiront, en 1830, à la fin d’une expérience que peu de diplomates considéraient d’ailleurs, dès ses prémisses, comme viable. Dans cette contribution, nous entendons faire le point sur la période post-française dans l’actuelle Belgique. En quoi les années 1814-1830 ont-elles été une étape cruciale dans l’affirmation d’une identité nationale ou d’un patriotisme belge ? Pourquoi la politique de Guillaume Ier s’est-elle heurtée, dans les provinces méridionales, à une opposition plurielle et parfois paradoxale ? Pourquoi peut-on dire que les questions de liberté d’enseignement, de liberté religieuse et de liberté linguistique se sont intimement liées pour constituer la matrice des événements de 1830, une matrice alimentée bien sûr également par des revendications de nature économique ? [less ▲]

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See detailTémoignages sur l’art vétérinaire dans les lettres conservées sur papyrus, sur ostraca et sur tablettes (IIIe s. avant notre ère – VIIe s. de notre ère)
Ricciardetto, Antonio ULg

in Doyen-Higuet, Anne-Marie; Van den Abeele, Baudouin (Eds.) « Chevaux, chiens, faucons : l’art vétérinaire antique et médiéval à travers les sources écrites, archéologiques et iconographiques ». Actes du IIIe Colloque international sur l’art vétérinaire antique et médiéval (Université Catholique de Louvain, Louvain-la-Neuve, 24-26 mars 2011) (in press)

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See detailLe droit public et le tiers. Rapport belge
Bouhon, Frédéric ULg

in Actes des Journées Panaméennes de l’Association Henri Capitant (in press)

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See detailNicolas Schöffer’s collection: from the artist’s studio to the museum
D'Haenens, Manon ULg

in Keep it moving ? Conserving kinetic art (in press)

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See detailInventaire et typologie des listes grecques et latines de produits pharmaceutiques conservées sur papyrus, ostracon et tablette (IIIe s. av. J.-Chr.-VIIe s. apr. J.-Chr.)
Ricciardetto, Antonio ULg

in Actes du XXVIIe Congrès international de Papyrologie (Varsovie, 29.07-3.08.2013) (in press)

Dans la documentation papyrologique relative aux pratiques médicales de l’Égypte gréco-romaine et byzantine, le genre des listes de produits pharmaceutiques n’a encore jamais fait l’objet, ni d’un ... [more ▼]

Dans la documentation papyrologique relative aux pratiques médicales de l’Égypte gréco-romaine et byzantine, le genre des listes de produits pharmaceutiques n’a encore jamais fait l’objet, ni d’un inventaire, ni d’une étude exhaustifs. Dans le cadre de nos recherches doctorales sur la typologie des papyrus documentaires grecs et latins à caractère médical, c’est cette lacune que l’on se propose de combler, d’une part en cataloguant, au moyen de la fiche Mertens-Pack³ du CEDOPAL, la trentaine de listes de produits pharmaceutiques provenant d’Égypte, écrites en grec sur papyrus et ostracon (IIIe s. av. J.-Chr.-VIIe s. apr. J.-Chr.), auxquelles on ajoutera deux listes latines sur tablettes de bois, provenant du camp romain de Vindolanda (c. 100p), et, d’autre part, en analysant les aspects formels, paléographiques, textuels et contextuels de ces documents médicaux qui peuvent correspondre, soit à un inventaire de droguiste, soit à une commande, soit à une ou plusieurs recettes dont l’état fragmentaire du support a fait disparaître les proportions. On comparera les données obtenues avec d’autres pièces papyrologiques, spécialement les nombreuses prescriptions médicales, ainsi que les comptes, les reçus de paiement ou encore les lettres privées relatives à des demandes de médicaments ou à la livraison de substances pharmaceutiques. [less ▲]

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See detailLa qualité de vendeur professionnel : incidence sur la formation et l'exécution du contrat de vente d'immeuble
Kohl, Benoît ULg; Rigolet, Alexandre ULg

in La rédaction des clauses. Examen systématique et pratique (in press)

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See detailLa fondation d’une théorie de l’agentivité chez Heidegger à l’époque de Sein und Zeit
Zincq, Aurélien ULg

in Boccaccini, Federico; Cormann, Grégory (Eds.) Le soi agent: Approches phénoménologiques (in press)

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See detailLa diversité linguistique dans l'Empire romain au temps d'Irénée : l'Asie Mineure et la Gaule
Rochette, Bruno ULg

in Bastit, Agnès (Ed.) Irénée après Irénée : les traces d'un auteur grec perdu (in press)

Originaire d’Asie Mineure, Irénée est un témoin de la situation de plurilinguisme dans l’Imperium Romanum du IIe s. apr. J.-C. Comme beaucoup de ses contemporains, il est venu à Rome, ville cosmopolite au ... [more ▼]

Originaire d’Asie Mineure, Irénée est un témoin de la situation de plurilinguisme dans l’Imperium Romanum du IIe s. apr. J.-C. Comme beaucoup de ses contemporains, il est venu à Rome, ville cosmopolite au centre de l’Empire. Plutôt que de retourner dans sa patrie natale, il a poursuivi sa route vers l’Occident pour se fixer en Gaule, à Lyon, dont il deviendra évêque. Irénée a donc connu plusieurs situations linguistiques. Il se meut d’abord au sein de l’Empire romain, où deux langues coexistent, le latin et le grec, qui atteignent, durant le IIe s., un point d’équilibre, dont témoignent certaines œuvres, comme les Nuits Attiques d’Aulu-Gelle. Ensuite, l’Asie Mineure, d’où est parti Irénée, se caractérise par une grande diversité linguistique et par une survivance des parlers locaux. Le christianisme s’est appuyé sur ces langues locales, persistantes dans les campagnes, tandis que les villes, hellénisées, restaient des foyers du paganisme. Enfin, en Gaule, la question est de savoir dans quelle mesure la langue des Gaulois a persisté et a pu être connue d’Irénée. A ce sujet, un passage de la préface de l’Adversus haereses (Οὐκ ἐπιτητήεις δὲ παρ᾿ἡμῶν, τῶν ἐν Κελτοῖς διατριβόντων καὶ περὶ βάρβαρον διάλεκτον τὸ πλεῖστον ἀσχολουμένων… « Tu n’exigeras de nous, qui vivons chez les Celtes et qui, la plupart du temps, traitons nos affaires en dialecte barbare… ») mérite d’être analysé. C’est probablement le latin qu’il faut voir dernière l’expression « dialecte barbare ». [less ▲]

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See detailLe traitement de l’Histoire Auguste selon les méthodes du LASLA : descriptif du projet et perspectives linguistiques
Longrée, Dominique ULg; Bertrand-Dagenbach, Cécile

in Cuzzolin, P, Fedriani, Ch (Ed.) Actes du Colloque Latin vulgaire et Latin Tardif, LVLT 10, Bergame, 5-8 septembre 2013 (in press)

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See detail« Y a-t-il une africitas ? Une analyse statistique et quantitative trois passions de Maurétanie Césarienne »
Fialon, Sabine ULg

in Longrée, Dominique; Fialon, Sabine (Eds.) Langues anciennes et analyse statistique : cinquante ans après – Distances textuelles et intertextualités (in press)

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See detailFormation et information en conservation-restauration
Verbeeck, Muriel ULg

in Retour d'expérience et regards rétrospectifs (in press)

Cette contribution porte sur l'évolution des formations en conservation-restauration ainsi que sur la nécessaire adaptation des techniques documentaires des professionnels. Elle recense les nombreuses ... [more ▼]

Cette contribution porte sur l'évolution des formations en conservation-restauration ainsi que sur la nécessaire adaptation des techniques documentaires des professionnels. Elle recense les nombreuses ressources disponibles. [less ▲]

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See detailBenedetto Varchi e gli artisti: prima e dopo l'Accademia fiorentina
Geremicca, Antonio ULg

in Geremicca, Antonio; Chiummo, Carla; Tosini, Patrizia (Eds.) Intrecci virtuosi. Letterati, artisti e accademie nell’Italia Centrale tra Cinque e Seicento: Roma e Firenze (in press)

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See detailIl Bibbiena ‘moccicone’: l’autoironia e il classicismo come ingredienti del perfetto segretario e cortigiano
Marconato, Claudia ULg

in Être homme de « lettres » : secrétaires et politique culturelle au seizième siècle (in press)

Bernardo Dovizi, one of the most famous secretaries of the early Italian Reinassance, is best known for his literary works and for being the patron of Raffaello rather than for his endeavors in diplomacy ... [more ▼]

Bernardo Dovizi, one of the most famous secretaries of the early Italian Reinassance, is best known for his literary works and for being the patron of Raffaello rather than for his endeavors in diplomacy. By deciding to follow the interests of Giovanni de’ Medici, Dovizi made some poor political decisions in his career but, in spite of this, he cunningly managed to get his patron become the Pope. The "Calandra" is a work that depicts well the author’s ideas, in between parody and classicism. From his works, Epistolario and Ricordi, it appears that the main strength of Dovizi is his irony, through which he manages to become almost an accomplice with his patron. Alongside with the iconological choice of the frescoes of his Stufetta and Loggia in the Vatican, he assumes the posture of the secretary-jester, as it was portrayed by Baldassarre Castiglione in "The Book of the Courtier": the satyr that washes into the room, used as bathroom, corresponds to the most famous pose of the patron who insists on these burlesque and mocking characteristics, although relating to Ovid and Plato. Bibbiena seems to be aware of how much the man that exceeds in praise himself appears unbearable, therefore, in his relations with members of the ruling class, he often assumes a playful attitude. In the Rome of Leo X, because of the Socratic 'serio ludere', such attitude was accepted and admired. The best instruments of Bibbiena are the pleasantness and a careful selection of humanistic ideals. Such ideals were those that suited better the environment in which he, the courtier, had to operate, and were used in his works. [less ▲]

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See detailLa régionalité lexicale du moyen français (1350-1500) dans le DMF
Renders, Pascale ULg

in Glessgen, Martin; Trotter, David (Eds.) La régionalité lexicale au Moyen Âge. Colloque international en l’honneur du 70e anniversaire de Gilles Roques (in press)

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See detailSignes et abréviations dans l'Anonyme de Londres
Ricciardetto, Antonio ULg

in Signes dans les textes. Recherches sur les continuités et les ruptures des pratiques scribales en Égypte pharaonique, gréco-romaine et byzantine. Actes du colloque international (Université de Liège, 2-4 juin 2016) (in press)

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See detailThe study of ornament and the shaping of a new architecture in 19th century Belgium
Prina, Daniela ULg

in EAHN 4th International Conference - Proceedings (in press)

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See detailPolitique, Profil et Parcours linguistiques face à la mondialisation universitaire
Defays, Jean-Marc ULg

in Dezutter, Olivier; Borge, Serge (Eds.) Actes du IIIe Forum mondial des centres de langues de l’enseignement supérieur HÉRACLES, "Les Centres de langues et la mise en œuvre des politiques linguistiques" (in press)

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See detailUn contrat d'enseignement du IIIe siècle avant notre ère : P.Heid. III 226
Ricciardetto, Antonio ULg

in Ricciardetto, Antonio; Marganne, Marie-Hélène (Eds.) En marge du Serment hippocratique : contrats et serments dans le monde gréco-romain. Actes de la Journée d'étude internationale (Université de Liège, 29 octobre 2014) (in press)

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See detailLiège de 1914 à 1927 : mort et résurrection d’un bassin industriel
Pirot, Pascal ULg; Peters, Arnaud ULg; Destatte, Julien ULg

in Actes du colloque: Guerres mondiales et bassins industriels en territoire occupé (1900-1950), Maubeuge, 20-21 novembre 2014 (titre provisoire) (in press)

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See detailCommunicating with the divine: Herms in Attic vase painting
Collard, Hélène ULg

in Miller, John F.; Strauss Clay, Jenny (Eds.) Tracking Hermes and Mercury (in press)

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See detailThe workers’ speeches in the daily life scenes of the XIXth-Dynasty tombs at Deir el-Medina and its vicinity
Motte, Aurore ULg

in "Deir el-Medina and the Theban Necropolis in Contact: Describing the interactions within and outside the community of workmen" (in press)

In this paper, I study the workers’ speeches (“Reden and Rufe”) in the 19th-Dynasty tombs of Deir el-Medina and its surroundings. For this period, only three tombs in Deir el-Medina (TT 212, TT 217, and ... [more ▼]

In this paper, I study the workers’ speeches (“Reden and Rufe”) in the 19th-Dynasty tombs of Deir el-Medina and its surroundings. For this period, only three tombs in Deir el-Medina (TT 212, TT 217, and TT 266) and one in the Theban necropolis (TT 16) preserve such texts. The goal of this paper is twofold. First, it aims at showing that, after falling into disuse in elite tombs, workers’ speeches appear in the tombs of craftsmen and the upper middle class, further evidence of the “democratisation” phenomenon during the 19th Dynasty. A wall relief fragment of the craftsman Meryptah from Saqqara (18th-19th Dynasty) indicates that this phenomenon was not restricted to the Theban area. The second goal of this paper is to determine what kind of language is used in 19th-Dynasty workers’ speeches, since this literary genre is sometimes thought to be written in the vernacular. I argue that it is a mimetic language, “à-la-manière-de,” more than an actual colloquial language. Regarding this question, the tombs of Ipuy (TT 217) and Amennakht (TT 266) lead to a dead-end because of their fragmentary state. The tomb of Ramose (TT 212) and the tomb of Panehsy and his wife Tarenu (TT 16), on the other hand, reveal Late Egyptian linguistic features. But, because their owners belong to a lower social class than the elite, it might suggest a reinterpretation of the rules specific to the literary genre of the workers’speeches (possible diastratic/diaphasic variation). [less ▲]

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See detailL’apport du biofeedback dans le traitement des troubles de la voix
Remacle, Angélique ULg; Boughabi, Loubna; Morsomme, Dominique ULg

in Actes des XVIèmes Rencontres internationales d’orthophonie (in press)

It has recently become possible to monitor patients’ voices outside the speech therapist’s office with a portable, easy-to-use tool: the voice dosimeter. This tool measures voice frequency and sound ... [more ▼]

It has recently become possible to monitor patients’ voices outside the speech therapist’s office with a portable, easy-to-use tool: the voice dosimeter. This tool measures voice frequency and sound pressure level, as well as the duration of phonation, during a full day of regular activities. In addition to voice accumulation in an ecological context, the dosimeter used in this study (VoxLog, Sonvox) gives patients feedback on their voice use. In practice, the clinician configures the device so that it provides a vibratory signal in real time when the patient speaks above or below a predetermined frequency or sound pressure threshold. The feedback is intended to make patients aware of inappropriate vocal behavior and encourage them to change it. In this case study, we used biofeedback with the aim of reducing sound pressure level for a teacher suffering from vocal fold nodules. Our goal was to determine whether vibrotactile biofeedback applied in an ecological context for three consecutive weeks could reduce excess sound pressure. The feedback was activated every time the teacher spoke too loudly; its purpose was to help her avoid vocal abuse and (re)learn healthy vocal behaviors. This preliminary study generated encouraging results regarding the use of biofeedback in voice treatment. Nevertheless, it is important to investigate how this tool can best be implemented for patient management in speech language pathology. In addition, the method should be validated with randomized studies using a larger sample. [less ▲]

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See detailIkhwāniyyāt Letters in the Mamluk Period: A Document (Muṭālaʿa) Issued by al-Muʾayyad Shaykh’s Chancery and a Contribution to Mamluk Diplomatics
Bauden, Frédéric ULg

in Levanoni, Amalia (Ed.) Egypt and Syria under Mamluk Rule: Political, Social and Cultural Aspects (in press)

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See detailSpazio scritto e spazio non scritto nelle dossografie mediche su papiro
Ricciardetto, Antonio ULg

in Spazio scritto e spazio non scritto nel libro papiraceo: esperienze a confronto (in press)

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See detailCommento all’articolo di C. Martis, Il commentario del P.Louvre inv. 7733 verso: un esempio di esegesi antica
Ricciardetto, Antonio ULg

in Atti di Ricerche a confronto V / V ciclo di incontri tra studenti e dottorandi di Antichità classiche e del Vicino Oriente antico (in press)

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See detailEntre Rome et l’Égypte romaine. Pour une étude de la nourrice entre littérature médicale et contrats de travail
Ricciardetto, Antonio ULg; Gourevitch, Danielle

in Ricciardetto, Antonio; Marganne, Marie-Hélène (Eds.) En marge du Serment hippocratique : contrats et serments dans le monde gréco-romain. Actes de la Journée d'étude internationale (Université de Liège, 29 octobre 2014) (in press)

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See detailLes dévotes isiaques et les atours de leur déesse
Veymiers, Richard ULg; Malaise, Michel

in Veymiers, Richard; Gasparini, Valentino (Eds.) The Greco-Roman Cults of Isis: Agents, Images and Practices. Proceedings of the VIth Conference of Isis Studies (Erfurt, May 6-8 – Liège, September 23-24, 2013) (in press)

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See detailVariation de la ponctuation dans une charte originale en double expédition écrite en français à Liège au XIIIe siècle
Mazziotta, Nicolas ULg

in Rochelois, Cécile; Fasseur, Valérie (Eds.) Ponctuer l'œuvre médiévale: des signes au sens (in press)

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See detailIntroduction
Fagnart, Laure ULg; Lecocq, Isabelle

in Fagnart, Laure; Lecocq, Isabelle (Eds.) Francis I and the Artists of the North (1515-1547) (2017)

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See detailAs teorias semióticas diante da fotografia
Dondero, Maria Giulia ULg

in Rodrigues, Angelica; Rocha, Nildicéia (Eds.) Proceedings VI SELIN – The Unesp Linguistics Studies Seminar (2016, December)

Dans ce texte, je me propose de revenir sur les travaux en sémiotique qui ont marqué les études du champ interdisciplinaire de la photographie et de les poursuivre; l’objectif principal est de fournir ... [more ▼]

Dans ce texte, je me propose de revenir sur les travaux en sémiotique qui ont marqué les études du champ interdisciplinaire de la photographie et de les poursuivre; l’objectif principal est de fournir quelques pistes pour étudier, d’un point de vue sémiotique, l’image photographique en tant qu’objet pris dans des pratiques d’usage et d’interprétation diversifiées au sein des statuts sociaux de l’art, de la science, de la religion. [less ▲]

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See detailMonitoring topography of laboratory fluvial dike models subjected to breaching based on a laser profilometry technique
Rifai, Ismail ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in International Symposium on River Sedimentation: Stuttgart 19th-22d september 2016 (2016, September)

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See detailEnhancing Cover Song Identification with Hierarchical Rank Aggregation
Osmalsky, Julien ULg; Van Droogenbroeck, Marc ULg; Embrechts, Jean-Jacques ULg

in Proceedings of the 17th International for Music Information Retrieval Conference (2016, August)

Abstract Cover song identification involves calculating pairwise similarities between a query audio track and a database of reference tracks. While most authors make exclusively use of chroma features ... [more ▼]

Abstract Cover song identification involves calculating pairwise similarities between a query audio track and a database of reference tracks. While most authors make exclusively use of chroma features, recent work tends to demonstrate that combining similarity estimators based on multiple audio features increases the performance. We improve this approach by using a hierarchical rank aggregation method for combining estimators based on different features. More precisely, we first aggregate estimators based on global features such as the tempo, the duration, the loudness, the beats, and the average chroma vectors. Then, we aggregate the resulting composite estimator with four popular state-of-the-art methods based on chromas as well as timbre sequences. We further introduce a refinement step for the rank aggregation called “local Kemenization” and quantify its benefit for cover song identification. The performance of our method is evaluated on the Second Hand Song dataset. Our experiments show an significant improvement of the performance, up to an increase of more than 200 % of the number of queries identified in the Top-1, compared to previous results. [less ▲]

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See detailLa légation des Pays-Bas en cour de Rome au temps de l’agent Laurent du Blioul (1573-1598): Une légation au cœur des réseaux de la monarchie de Philippe II
Regibeau, Julien ULg

in Actes du neuvième congrès de l'Association des Cercles francophones d'Histoire et d'Archéologie de Belgique (2016, August)

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See detailFeasibility study of burning neat jatropha oil into a vaporizing burner for household applications.
Sartor, Kevin ULg; Makaire, Danielle; Fontaine, Jean-Marie et al

in Proceedings (2016, August)

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See detailLes corps des scientifiques et de l’intellectuel dans la revue La Recherche
Dondero, Maria Giulia ULg

in Mabrour, Abdel; Bajomée, Danielle (Eds.) La lettre et l’image. Enquêtes interculturelles sur les territoires du visible (2016, August)

Ce travail entend examiner les rapports entre les représentations photographiques des corps des scientifiques dans la revue de vulgarisation savante La Recherche, tels les portraits, les scènes de travail ... [more ▼]

Ce travail entend examiner les rapports entre les représentations photographiques des corps des scientifiques dans la revue de vulgarisation savante La Recherche, tels les portraits, les scènes de travail collectif en laboratoire etc., et les conceptions de la science qui en sont valorisées. L’étude des relations entre les photographies et les textes qui les accompagnent ont ainsi pour objectif de déployer une réflexion non seulement sur les différents types de commensurabilité entre le langage verbal et le langage visuel mais aussi sur le fait que le langage visuel est à même de forger de manière tout à fait autonome des valeurs identitaires et des formes de vie identifiables via l’analyse sémiotique. Notre exploration se développera en deux volets : le premier vise à esquisser la méthodologie de la sémiotique visuelle pour pouvoir introduire les niveaux pertinents de l’analyse sémiotique, le deuxième consiste à analyser un corpus constitué de textes tirés de quelques numéros de la revue La Recherche en en distinguant les différents genres discursifs (entretien, présentation de travaux en cours, etc.) et les différents types de cadrage et de mise en scène photographique afin d’expliquer comment ils se combinent avec les prises de position épistémologiques valorisées. [less ▲]

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See detailA Novel Methodology for Hybrid Fire Testing
Sauca, Ana ULg; Gernay, Thomas ULg; Robert, Fabienne et al

in Proceedings of the 6th European Conference on Structural Control (2016, July 11)

This paper describes a novel methodology for conducting stable hybrid fire testing (HTF). During hybrid fire testing, only a part of the structure is tested in a furnace while the reminded structure is ... [more ▼]

This paper describes a novel methodology for conducting stable hybrid fire testing (HTF). During hybrid fire testing, only a part of the structure is tested in a furnace while the reminded structure is calculated separately, here by means of a predetermined matrix. Equilibrium and compatibility at the interface between the tested “physical substructure” and the “numerical substructure” is maintained throughout the test using a dedicated algorithm. The procedures developed so far are sensitive to the stiffness ratio between the physical and the numerical substructure and therefore they can be applied only in some cases. In fire field, the stiffness of the heated physical substructure may change dramatically and the resulting change in stiffness ratio can lead to instability during the test. To overcome this drawback, a methodology independent of the stiffness ratio has been developed, inspired from the Finite Element Tearing and Interconnecting (FETI) method, which has been originally developed for substructuring in numerical analyses. The novel methodology has been successfully applied to a hybrid fire test in a purely numerical environment, i.e. the physical substructure was also modelled numerically. It is shown that stability does not depend on the stiffness ratio and that equilibrium and compatibility can be consistently maintained at the interface during the fire. Finally, the ongoing experimental program aimed at employing and experimentally validating this methodology is described. [less ▲]

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See detailLeveraging orientation knowledge to enhance human pose estimation methods
Azrour, Samir ULg; Pierard, Sébastien ULg; Van Droogenbroeck, Marc ULg

in Articulated Motion and Deformable Objects AMDO 2016 (2016, July)

Predicting accurately and in real-time 3D body joint positions from a depth image is the cornerstone for many safety, biomedical, and entertainment applications. Despite the high quality of the depth ... [more ▼]

Predicting accurately and in real-time 3D body joint positions from a depth image is the cornerstone for many safety, biomedical, and entertainment applications. Despite the high quality of the depth images, the accuracy of existing human pose estimation methods from single depth images remains insufficient for some applications. In order to enhance the accuracy, we suggest to leverage a rough orientation estimation to dynamically select a 3D joint position prediction model specialized for this orientation. This orientation estimation can be obtained in real-time either from the image itself, or from any other clue like tracking. We demonstrate the merits of this general principle on a pose estimation method similar to the one used with Kinect cameras. Our results show that the accuracy is improved by up to 45.1 %, with respect to a method using the same model for all orientations. [less ▲]

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See detailTowards a Multipath TCP Aware Load Balancer
Lienardy, Simon ULg; Donnet, Benoît ULg

in Applied Networking Research Workshop (2016, July)

Multipath TCP has been recently introduced in order to allow a better resource consumption and user quality-of-experience. This is achieved by allowing a connection between two hosts through multiple ... [more ▼]

Multipath TCP has been recently introduced in order to allow a better resource consumption and user quality-of-experience. This is achieved by allowing a connection between two hosts through multiple subflows. However, with the rise of middleboxes and inherent Internet ossification, the large-scale deployment of this TCP extension is difficult. In particular, a load balancer at the entry point of a data center may forward subflows to different servers, canceling so the advantages of Multipath TCP. In this paper, we introduce MpLB, a Multipath TCP aware load balancer that fixes this particular issue without any modification to the Multipath TCP protocol itself. We demonstrate advantages of MpLB through a proof-of-concept. [less ▲]

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See detailTowards an Observatory for Network Transparency Research
Neuhaus, Stephan; Münter, Roman; Edeline, Korian ULg et al

in Applied Networking Research Workshop (2016, July)

The Internet is full of middleboxes that change packets and flows. In fact, there is probably no IP or TCP header that is not affected by at least one middlebox. Obviously, middleboxes impede path ... [more ▼]

The Internet is full of middleboxes that change packets and flows. In fact, there is probably no IP or TCP header that is not affected by at least one middlebox. Obviously, middleboxes impede path transparency, i.e., the idea that an exchange of messages results in more or less the same packets, no matter what path the packets takes. But no one seems to have a truly global view of what middleboxes do to packets on what Internet paths, which would however be an essential knowledge for new transport protocols to be successfully deployed. We address these concerns in the MAMI project by building an observatory of path transparency measurements. The project hosts an extensive set of path transparency measurements - we believe it to be the first dataset to deal specifically with middlebox involvement. In this paper, we describe that Observatory and a number of questions that we want to address with the data in that Observatory. Eventually, the project will provide public access to that Observatory so that researchers and the interested public can ask their own questions about path transparency issues and middlebox involvement. [less ▲]

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See detailSensitivity of the breaching process in the case of overtopping induced fluvial dike failure
Rifai, Ismail ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in River Flow 2016 Proceedings (2016, July)

Fluvial dikes are common structures constructed for flow channelization, prevention of river bed lateral migration and for flood protection purposes. Their aging increases their vulnerability to extreme ... [more ▼]

Fluvial dikes are common structures constructed for flow channelization, prevention of river bed lateral migration and for flood protection purposes. Their aging increases their vulnerability to extreme hydro-logical events, and subsequently may cause their failure. Many laboratory studies of overtopping induced dike failure were conducted, dealing mainly on normal configurations (i.e. dam break configuration) without ac-counting for the influence of a parallel flow. The fluvial dike breaching process remains, therefore, insuffi-ciently studied. A simplified model assuming a parameterized evolution of the breach geometry has been de-veloped to evaluate the fluvial breaching process. Results showed a sensitivity of the breaching process to the main channel configuration and to the flow conditions. Also, the evolution mode that was prescribed for the breach cross-section strongly influences the breaching duration and the sediment discharge [less ▲]

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See detailReceding-Horizon Control of Distributed Generation to Correct Voltage or Thermal Violations and Track Desired Schedules
Soleimani Bidgoli, Hamid ULg; Glavic, Mevludin ULg; Van Cutsem, Thierry ULg

in Proceedings of the 19th PSCC (2016, June 23)

This paper presents a real-time, centralized control system acting on the active and reactive powers of distributed generators when the network experiences voltage and/or thermal limits violation. The ... [more ▼]

This paper presents a real-time, centralized control system acting on the active and reactive powers of distributed generators when the network experiences voltage and/or thermal limits violation. The control resorts on multi-step receding-horizon optimization. The objective is to minimize the deviations of Dispersed Generation Units (DGU) active and reactive powers from reference values. The reactive power corrections have priority over the active ones. Furthermore, the formulation is such that DGU powers are restored to their desired schedule as soon as operating conditions allow doing so. Three modes of operation of the proposed controller are presented, involving dispatchable units as well as DGUs operated to track maximum power output. The effectiveness of the proposed control is illustrated through detailed simulations of a 75-bus, 11-kV system hosting 22 DGUs. [less ▲]

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See detailORCmKit: an open-source library for organic Rankine cycle modelling and analysis
Dickes, Rémi ULg; Ziviani, Davide; van den Broek, Martjin et al

in Proceedings of ECOS 2016 (2016, June 20)

As for many other technologies, modelling and simulation of organic Rankine cycles (ORCs) are crucial for design, optimization and control purposes. However, model development is often time consuming and ... [more ▼]

As for many other technologies, modelling and simulation of organic Rankine cycles (ORCs) are crucial for design, optimization and control purposes. However, model development is often time consuming and the scientific community lacks of open-access tools to study ORC systems. For these reasons, researchers from the universities of Liège and Ghent in Belgium gathered their knowledge and created “ORC modelling Kit” (ORCmKit), an open-source library dedicated to the steady-state simulation and analysis of organic Rankine cycles. Both component-level and cycle-level models are provided and different ORC architectures can be simulated. For each of the main component of ORC systems, different models are available with increasing complexity which allows a wide range of modelling possibilities. In order to remain general and accessible to as many people as possible, three widely used programming languages are covered within ORCmKit, i.e. Matlab, Python and EES (Engineering Equation Solver). Besides source codes, ORCmKit also includes calibration tools for empirical and semi-empirical models as well as a complete documentation for ease of use. [less ▲]

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See detailEvaluation of Adaptive Facades: The Case Study of AGC Headquarter in Belgium
Attia, Shady ULg; Bashandy, Hamza

in Belis, Jan; Louter, Christian (Eds.) Challenging Glass 5 (2016, June 17)

The evaluation of adaptive facades presents a challenge because there is no established evaluation strategy to systematically reach this goal and many of the available façade performance evaluation tools ... [more ▼]

The evaluation of adaptive facades presents a challenge because there is no established evaluation strategy to systematically reach this goal and many of the available façade performance evaluation tools have limited applicability for such advanced building facades. This paper presents a case study for an adaptive glass façade and evaluates its performance. The evaluation focuses mainly on pre and post construction phase of adaptive facades: The design assist phase (including the durability test, visual mockup, onsite panel mounting and weather stripping), the commissioning phase (field verification and performance testing) and the monitoring phase. The selected project is a nearly zero energy building with unique façade comprising thermal isolated glass sunshades printed with white silk screen. These louvers respond dynamically and automatically to the angle of the sun which improves the control over energy consumption, solar radiation and glare with the ability to admit natural light into the building. The paper is part of the research activities of working group 3 of the European COST Action 1403 on “Adaptive Facades “. Different methods were used for evaluation, this include: interviews with the architect, façade engineer and technical control specialist, reviews of standard and codes and a systematic process mapping. A documentation of the case study describing the post construction occupant comfort and façade operation was prepared. This paper’s audience is mainly architects, building façade engineers together with facility managers concerned with the process of design, construction and operation of adaptive glass facades. The outcome of this study identifies effective strategies for the design and performance evaluation of optimal adaptive facades. [less ▲]

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See detailConversion of visual post fire measurements into fire severity with the aid of thermo-plastic analysis for retrofitting
Molkens, Tom; Gernay, Thomas ULg; Van Coile, Ruben

in Garlock, Maria; Kodur, Venkatesh (Eds.) Structures in Fire (Proceedings of the Ninth International Conference) (2016, June 10)

At Koksijde in Belgium a severe fire took place in an apartment building in 2015, resulting in the death of a young man and visible structural damage to four balconies. Following the fire, experts were ... [more ▼]

At Koksijde in Belgium a severe fire took place in an apartment building in 2015, resulting in the death of a young man and visible structural damage to four balconies. Following the fire, experts were mandated to assess the damage and the need for structural repair. They estimated that the balconies had to be refurbished but that there were no other structural elements affected, in particular the slab inside the apartment could be left in place with only a surface treatment and new plaster finishing. However, the floor slab in the apartment located above the fire apartment exhibited several visual indications that the fire could have had a structural impact, such as residual deformations and cracks in the tiles. This paper presents a methodology to infer the fire severity based on post-fire measurements and non-linear thermo-plastic numerical simulations. Finally, knowing the fire severity, its effect on the structure is evaluated and a reliability-based assessment is made of the residual load bearing capacity of the slab. [less ▲]

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See detailCritical parameters in deriving fire fragility functions for steel gravity frames
Gernay, Thomas ULg; Elhami Khorasani, Negar; Garlock, Maria

in Garlock, Maria; Kodur, Venkatesh (Eds.) Structures in Fire (Proceedings of the Ninth International Conference) (2016, June 10)

Fire fragility functions can be used to characterize the probabilistic vulnerability of buildings to fire in the context of urban resilience assessment. A methodology has been proposed to develop such ... [more ▼]

Fire fragility functions can be used to characterize the probabilistic vulnerability of buildings to fire in the context of urban resilience assessment. A methodology has been proposed to develop such functions for multi-story steel buildings. However, a large number of parameters with uncertainties play a role in the process of constructing the fragility functions. The goal of this research is to identify the critical parameters that most affect the global fire safety by investigating the sensitivity of the fragility functions to different input parameters. Sensitivity in parameters affecting the fire model, the heat transfer process and the thermo-mechanical response is examined. The effects of different design assumptions at the system level are also studied. The presented approach is useful for selecting the prevailing parameters in a fire reliability analysis and it provides important information for modeling tools that can be used to evaluate resilience for fire scenarios. [less ▲]

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See detailTowards a standard measure of the ability of a structure to resist a natural fire
Gernay, Thomas ULg; Franssen, Jean-Marc ULg

in Garlock, Maria; Kodur, Venkatesh (Eds.) Structures in Fire (Proceedings of the Ninth International Conference) (2016, June 10)

Fire brigades face a major threat when intervening in a building in fire: the possibility of structural collapse during the cooling phase of the fire, or soon thereafter. In the current approaches to ... [more ▼]

Fire brigades face a major threat when intervening in a building in fire: the possibility of structural collapse during the cooling phase of the fire, or soon thereafter. In the current approaches to structural fire engineering, the fire resistance rating (R) is generally the only measure taken into consideration to characterize the fire performance of structural elements, although this measure does not reflect the response in real fire conditions. In this work, a standard measure is proposed to characterize the ability of structural members to resist a natural fire including the decay phases. This measure yields information about the potential occurrence of delayed failure as a function of the duration of the fire before it started to decrease, whether by self-extinction or due to the action of the fire fighters. The paper presents the method to derive this new standard measure as well as results for different typologies of structural elements. Finally, the interpretation and practical consequences are discussed, in particular regarding the safety of fire fighters during an intervention. [less ▲]

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See detailFire fragility functions for community resilience assessment
Elhami Khorasani, Negar; Gernay, Thomas ULg; Garlock, Maria

in Garlock, Maria; Kodur, Venkatesh (Eds.) Structures in Fire (Proceedings of the Ninth International Conference) (2016, June 10)

This work provides a framework to evaluate the response of buildings in a community to fire following earthquake. As part of the framework, the paper discusses two methodologies: (1) how to develop fire ... [more ▼]

This work provides a framework to evaluate the response of buildings in a community to fire following earthquake. As part of the framework, the paper discusses two methodologies: (1) how to develop fire fragility functions; (2) how the fire fragility functions can be used in conjunction with an original fire ignition model to estimate the potential losses in a community from fire following earthquake. The paper focuses in particular on the development of fire fragility functions for an entire building to measure the probability of reaching a damage state given a fire scenario. Next, the paper proposes an ignition model to evaluate the probability of fire ignition after an earthquake. The ignition model together with fragility functions measure the probability of damage from fire following earthquake given an earthquake scenario. [less ▲]

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See detailStability in Hybrid Fire Testing
Sauca, Ana ULg; Gernay, Thomas ULg; Robert, Fabienne et al

in Garlock, Maria; Kodur, Venkatesh (Eds.) Structures in Fire (Proceedings of the Ninth International Conference) (2016, June 09)

Hybrid testing is an appealing technique to observe the behavior of an element in an experimental test while taking into account the interaction with the rest of the structure which is modelled ... [more ▼]

Hybrid testing is an appealing technique to observe the behavior of an element in an experimental test while taking into account the interaction with the rest of the structure which is modelled numerically. Being widely used in the seismic field, this technique has been recently proposed in the fire field. The purpose of this paper is to demonstrate that the loading control process may be unstable during the hybrid testing when using the methodology applied in former tests presented in the literature. The stability in the latter method depends on the stiffness ratio between the two substructures. For the purpose of discussion, a one degree-of-freedom elastic system is studied. To overcome the stability issues, a new method is presented, independent on the stiffness ratio. Finally, the hybrid testing of a 2D beam being part of a moment resisting frame is analyzed in a virtual environment (both parts being modeled numerically) using the “first generation method” and the new proposed method. [less ▲]

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See detailFire Resistance of Reinforced Concrete Columns Subjected to Standard Fire – Comparison of an Advanced and a Simplified Method
Achenbach, Marcus; Gernay, Thomas ULg; Morgenthal, Guido

in Garlock, Maria; Kodur, Venkatesh (Eds.) Structures in Fire (Proceedings of the Ninth International Conference) (2016, June 08)

For designing concrete columns subjected to a standard fire exposure, the Eurocode permits the use of simplified or advanced calculation methods. For the designer, the question of the respective ... [more ▼]

For designing concrete columns subjected to a standard fire exposure, the Eurocode permits the use of simplified or advanced calculation methods. For the designer, the question of the respective advantages of these two types of methods arises. Which situations demand the use of an advanced method? When does a simple method provide sufficient accuracy? In this paper, laboratory tests are recalculated using Finite Element Modeling (FEM) as an advanced and Extended Zone Model (EZM) as a simple method in order to investigate these questions. The recalculations indicate that the simple EZM is of sufficient accuracy for symmetric heated columns without restraints. In contrast, the mechanical behavior of columns heated on three sides demands an advanced method such as FEM to be properly described. [less ▲]

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See detailY-a-t-il des contre-indications à l'examen ENMG ?
WANG, François-Charles ULg

in Echaniz-Laguna, Andoni (Ed.) ENMG 2016 (2016, June 02)

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See detailOn the modeling of MMC for use in large scale dynamic simulations
Freytes, Julian; Papangelis, Lampros ULg; Saad, Hani et al

in Proceedings of the 19th PSCC (2016, June)

This paper focuses on simplified models of the Modular Multilevel Converter suitable for large-scale dynamic studies, in particular simulations under the phasor approximation. Compared to the existing ... [more ▼]

This paper focuses on simplified models of the Modular Multilevel Converter suitable for large-scale dynamic studies, in particular simulations under the phasor approximation. Compared to the existing literature, this paper does not a priori adopt the modeling approach followed for the original twolevel or three-level Voltage Source Converter. On the contrary, a model is derived following a physical analysis that preserves its average internal dynamic behavior. An equivalent control structure is proposed and various alternatives are highlighted. The proposed model with its controllers has been implemented in a phasor simulation software and its response has been validated against a detailed Electromagnetic Transient model. Finally, an illustrative example is presented with the application of the proposed model on a large grid consisting of AC areas interconnected with a multi-terminal DC grid. [less ▲]

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See detailA Gaussian mixture approach to model stochastic processes in power systems
Gemine, Quentin ULg; Cornélusse, Bertrand ULg; Glavic, Mevludin ULg et al

in Proceedings of the 19th Power Systems Computation Conference (PSCC'16) (2016, June)

Probabilistic methods are emerging for operating electrical networks, driven by the integration of renewable generation. We present an algorithm that models a stochastic process as a Markov process using ... [more ▼]

Probabilistic methods are emerging for operating electrical networks, driven by the integration of renewable generation. We present an algorithm that models a stochastic process as a Markov process using a multivariate Gaussian Mixture Model, as well as a model selection technique to search for the adequate Markov order and number of components. The main motivation is to sample future trajectories of these processes from their last available observations (i.e. measurements). An accurate model that can generate these synthetic trajectories is critical for applications such as security analysis or decision making based on lookahead models. The proposed approach is evaluated in a lookahead security analysis framework, i.e. by estimating the probability of future system states to respect operational constraints. The evaluation is performed using a 33-bus distribution test system, for power consumption and wind speed processes. Empirical results show that the GMM approach slightly outperforms an ARMA approach. [less ▲]

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See detailMot à mot, brin par brin : les suites [Nom préposition Nom] comme indices de littérarité ?
Purnelle, Gérald ULg; Magri, Véronique; Legallois, Dominique

in Mayaffre, Damon; Poudat, Céline; Vanni, Laurent (Eds.) et al Statistical Analysis on Textual Data - Proceedings of 13th International Conference on Statistical Analysis of Textual Data (2016, June)

For the JADT 2012, we applied the text pattern theory to Noun-preposition-Noun (NpN) sequences, where both nouns surrounding the preposition are identical. Our working corpus was composed of texts from ... [more ▼]

For the JADT 2012, we applied the text pattern theory to Noun-preposition-Noun (NpN) sequences, where both nouns surrounding the preposition are identical. Our working corpus was composed of texts from the four main literary genres, memoirs (109 texts), novels (740 texts), poetry (191 texts) and theater (210 texts), 85 million words, sampled out of Frantext, a categorized database. That exploratory research allowed us to pinpoint the specific place of the NpN sequence, between language and discourse, its blooming into a full discursive pattern, able to produce a stylistic effect linked to lexical innovation, as well as its possible use as a generic litterarity marker. This paper aims at pursuing the work by extending the corpus and proposing new contrastive studies, showing the role of the NpN sequence as a litterarity marker. [less ▲]

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See detailA TOPSAR Processor based on the Omega-K Algorithm: Evaluation with Sentinel-1 Data
Kirkove, Murielle ULg; Orban, Anne ULg; De Rauw, Dominique ULg et al

in A TOPSAR Processor based on the Omega-K Algorithm: Evaluation with Sentinel-1 Data (2016, June)

This paper presents a processor for the TOPS (Terrain Observation by Progressive Scans) imaging mode. TOPS signals have two characteristics that make the use of Stripmap SAR processors inconvenient, i.e ... [more ▼]

This paper presents a processor for the TOPS (Terrain Observation by Progressive Scans) imaging mode. TOPS signals have two characteristics that make the use of Stripmap SAR processors inconvenient, i.e., azimuth frequency and azimuth time foldings. This paper describes a processor based on the Omega-K (Ω-k) algorithm, combined with pre-processing by frequency unfolding and post-processing by time unfolding. Raw data acquired by Sentinel-1 have been used to assess the quality of image reconstruction [less ▲]

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See detailDirect control service from residential heat pump aggregation with specified payback
Georges, Emeline ULg; Cornélusse, Bertrand ULg; Ernst, Damien ULg et al

in Proceedings of the 19th Power Systems Computation Conference (PSCC) (2016, June)

This paper addresses the problem of an aggregator controlling residential heat pumps to offer a direct control flexibility service. The service is defined by a 15 minute power modulation, upward or ... [more ▼]

This paper addresses the problem of an aggregator controlling residential heat pumps to offer a direct control flexibility service. The service is defined by a 15 minute power modulation, upward or downward, followed by a payback of one hour and 15 minutes. The service modulation is relative to an optimized baseline that minimizes the energy costs. The potential amount of modulable power and the payback effect are computed by solving mixed integer linear problems. Within these problems, the building thermal behavior is modeled by an equivalent thermal network made of resistances and lumped capacitances whose parameters are identified from validated models. Simulations are performed on 100 freestanding houses. For an average 4.3 kW heat pump, results show a potential of 1.2 kW upward modulation with a payback of 600 Wh and 150 Wh of overconsumption. A downward modulation of 500 W per house can be achieved with a payback of 420 Wh and 120 Wh of overconsumption. [less ▲]

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See detailÉtude statistique de la syntaxe des lexèmes _chetif_, _dolent_, _las_ et _maleüré_ en français médiéval
Mazziotta, Nicolas ULg

in Mayaffre, Damon; Poudat, Céline; Vanni, Laurent (Eds.) et al JADT 2016 - Proceedings of the 13th International Conference on Statistical Analysis of Textual Data (2016, June)

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See detailUpdating Failure Probability Of A Welded Joint In Offshore Wind Turbine Substructures
Mai, Anh Quang ULg; Sørensen, John D.; Rigo, Philippe ULg

in The 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE) (2016, June)

For offshore wind turbines, the support structure contributes with a significant part to the Levelized Cost Of Energy (LCOE). LCOE is the total cost to build and operate a whole offshore wind turbine ... [more ▼]

For offshore wind turbines, the support structure contributes with a significant part to the Levelized Cost Of Energy (LCOE). LCOE is the total cost to build and operate a whole offshore wind turbine structure over its lifetime divided by the total energy output of the wind turbine over that lifetime. That total expected cost of operation & maintenance may be lowered by application of reliability- and risk-based maintenance strategies and updating of the reliability based on e.g. inspections performed during the design lifetime. Updating the reliability (or alternatively the failure probability) of a welded joint can theoretically be done using Bayesian updating. However, for tubular joints in offshore wind turbine substructure when considering a two dimensional crack growth and a failure criterion combined brittle fracture and material strength, the updating is quite complex due to the wind turbine loading obtained during operation. This paper considers how the reliability (or the probability of failure) of welded steel details can be updated in the case where the fatigue failure is modelled by a fracture mechanics approach and a Failure Assessment Diagram (FAD) is used to define a limit state equation. Besides, it is shown how the probability of failure of fatigue critical joints can be updated for various inspection scenarios. A two dimensional bi-linear model is considered for the crack growth. Calculation of the crack depth and the crack length are coupled. The stress intensity factor is calculated following the sophisticated procedure in BS 7910:2005. The initial crack size, the yield and ultimate strengths of steel, the fracture toughness, the stress intensity factor, and the stress-ranges are considered as uncertain and modelled by random variables. The probability of detection is used to account for uncertainty in crack inspections. By using Monte Carlo simulations, stress-range histories are generated randomly and together with the calculated stress intensity factors used to check the limit state condition using the FAD approach. The probability of failure updating is done for three inspection scenarios: No crack detected; Crack detected and repaired; Crack detected but not repaired. The paper presents illustrative results for offshore wind applications for the three scenarios, including comparisons of application of the FAD approach for modelling the limit state equation with a ‘conventional’ approach where it is assumed that failure happens when crack-depth reaches the plate thickness or the stress intensity factor is equal to or larger than the fracture toughness of the material. Finally, it is discussed how application of the updating procedure can be used for inspection planning for offshore wind turbine support structures, and thus also for reducing the required safety factors at the design stage. [less ▲]

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See detailContext-dependent feature analysis with random forests
Sutera, Antonio ULg; Louppe, Gilles; Huynh-Thu, Vân Anh ULg et al

in Uncertainty In Artificial Intelligence: Proceedings of the Thirty-Two Conference (2016) (2016, June)

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See detailDevelopment of a semi-analytical model of volumetric expander for system-level simulation.
Oudkerk, Jean-François ULg

in Proceedings of ECOS 2016 (2016, June)

Organic Rankine cycles are particularly well suited for recovering energy from low-grade heat sources, such as industrial waste, engine exhaust gas or solar concentrated power. In ow-capacity systems ... [more ▼]

Organic Rankine cycles are particularly well suited for recovering energy from low-grade heat sources, such as industrial waste, engine exhaust gas or solar concentrated power. In ow-capacity systems, volumetric expanders are often preferred to turbomachines because of their reliability, robustness, low rotational speed and their ability to handle high pressure ratios… Different types of machines have been investigated and successfully tested by the uthors and tools have been developed in order to analyse experimental data. Semi-empirical odel was built to analyse losses, detect potential improvement and simulate performances. This paper present a simple and fastcomputing semi-analytical model useful for simulate dynamic system integrating volumetric expander. This model is validated on experimental data and compare to black-box model. [less ▲]

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See detailMitigation of the torsional flutter phenomenon of bridge deck section during a lifting phase
Andrianne, Thomas ULg; De Ville De Goyet, Vincent ULg

in Mitigation of the torsional flutter phenomenon of bridge deck section during a lifting phase (2016, June)

This paper presents a complete analysis of the aeroelastic behaviour of a deck section during the construction stage of the Third Bosphorus Bridge in Istanbul, Turkey. The combination of the low torsional ... [more ▼]

This paper presents a complete analysis of the aeroelastic behaviour of a deck section during the construction stage of the Third Bosphorus Bridge in Istanbul, Turkey. The combination of the low torsional stiffness along the vertical axis and the unstable aerodynamic shape of the suspended deck section led to a torsional flutter instability for a low wind speed (9.6 m/s). This low critical wind speed was obviously very likely to occur on the site of construction, so that mitigation actions were be implemented. It was decided to cover partially the sides of the deck section in order to modify adequately its aerodynamic shape. It is demonstrated that the proposed aerodynamic counter-measures increase the critical torsional flutter wind speed up to 39.5 m/s (worst configuration), which is acceptable for the construction phase of the bridge. The proposed mitigation solution was implemented and no torsional oscillations were observed. [less ▲]

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See detailLes lésions musculo-squelettiques de l’adolescent sportif
Kaux, Jean-François ULg

in 14èmes Journées de l’Enseignement Post-Universitaire de la Faculté de Médecine de Liège (2016, May 21)

Le développement des activités sportives augmente la fréquence des lésions musculo-squelettiques de l’adolescent. Ces lésions dépendent non seulement du mécanisme mais également de l’âge du sportif et de ... [more ▼]

Le développement des activités sportives augmente la fréquence des lésions musculo-squelettiques de l’adolescent. Ces lésions dépendent non seulement du mécanisme mais également de l’âge du sportif et de sa maturation osseuse, particulièrement des noyaux d’ossification. Les aphophysoses, ostéochondroses ou ostéodystrophies se manifestent par une douleur au niveau de l’insertion tendineuse sur le noyau d’ossification secondaire en croissance. Elles sont souvent provoquées par des contraintes en traction-cisaillement chez des enfants sportifs entre 3 et 16 ans. L’excès pondéral constitue également un facteur de risque. La guérison spontanée s’observe généralement après trois à 12, voire 18 mois d’évolution. La maladie de Sever est l’ostéodystophie du pied la plus fréquente ; elle touche le noyau postérieur du calcanéum, qui apparaît entre sept et dix ans et qui fusionne à la fin de la puberté (16–18 ans) et sur lequel s’insèrent le tendon d’Achille et le court fléchisseur plantaire. Les contraintes en traction et compression (réception de saut) sont importantes à ce niveau surtout chez les sportifs de sept à 15 ans pratiquant diverses impulsions (basket-ball, volley-ball, saut en longueur. . . ). La talalgie se manifeste lors de la pratique sportive. La douleur est bilatérale dans 60% des cas. Il faut rechercher des troubles de statique plantaire (pieds creux) régulièrement associés à la maladie de Sever. Le bilan radiologique reste souvent décevant et peu spécifique. Le diagnostic différentiel doit s’établir avec une tendinopathie achilléenne, une fracture du calcaneus, un kyste osseux, un ostéome ostéoïde, une ostéomyélite ou une éventuelle enthésopathie (spondylarthropathie). La base du traitement est le repos sportif en phase algique, l’usage de la cryothérapie, le port de talonnettes amortissantes ou encore la prise temporaire d’AINS (ibuprofène). Au niveau du genou, l’apophysose de croissance la plus fréquente est la maladie d’Osgood-Schlatter qui est plus fréquente chez les adolescents pratiquant des sports de sauts. Au niveau du bassin tous les noyaux d’ossifications peuvent être atteints et même être le site de fractures-avulsions lors de contractions musculaires excessives ou brutales car le cartilage de croissance présente une faiblesse locale par rapport aux structures musculo-tendineuses. L’ostéochondrite disséquante correspond à un noyau osseux séparé du corps de l’os et recouvert de cartilage normal ; localisée à la partie supéromédiale du talus ou au niveau des condyles fémoraux. Elle est souvent asymptomatique, voire entraine une discrète limitation douloureuse de la mobilisation mais entraine une douleur à la palpation locale. Elle nécessite cependant un traitement adéquat. En cas de lésion peu ou pas évolutive, une surveillance radiologique (IRM / arthroscanner) est suffisante. Chez le très jeune adolescent une immobilisation plâtrée de six semaines permettrait la fusion du noyau (au niveau du dôme talien). L’arthroscopie sera justifiée en cas de séquestre osseux afin de l’extraire, et ce, avec de bons résultats postopératoires. L’ostéosynthèse d’un noyau volumineux peut être également indiquée, les résultats restant plus aléatoires. En conclusion, la pathologie traumatique ou microtraumatique de l’adolescent sportif n’est pas rare et ne doit jamais être négligée. Toute douleur exige une exploration radiologique comparative afin de poser un diagnostic précis et d’entreprendre un traitement adéquat, le plus souvent conservateur. [less ▲]

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See detailLa responsabilité climatique dans les défis urbains contemporains: évaluation et mise en contexte pour la ville de Bujumbura, Burundi
Nibigira, Léonidas; Ozer, Pierre ULg; Havenith, Hans-Balder ULg

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

A Bujumbura, la capitale du Burundi, les préjudices liés aux risques naturels deviennent de plus en plus une réalité quotidienne. Les cas les plus ressentis sont ceux liés aux inondations, aux glissements ... [more ▼]

A Bujumbura, la capitale du Burundi, les préjudices liés aux risques naturels deviennent de plus en plus une réalité quotidienne. Les cas les plus ressentis sont ceux liés aux inondations, aux glissements de terrain et à l'érosion. Les épidémies relatives aux conditions sanitaires précaires deviennent de plus en plus récurrentes. [...] [less ▲]

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See detailLe Criquet pèlerin sera-t-il le déclencheur de l’effondrement de l’Afrique de l’Ouest ?
Diallo, Youssouf; Sory, Cisse; Ozer, Pierre ULg

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

Situé au cœur de l’Afrique de l’Ouest, le Mali est confronté ces dernières années à une succession de crises profondes : dégradation des conditions climatiques et environnementales, précarisation ... [more ▼]

Situé au cœur de l’Afrique de l’Ouest, le Mali est confronté ces dernières années à une succession de crises profondes : dégradation des conditions climatiques et environnementales, précarisation croissante de la sécurité alimentaire, développement de mouvements armés et terroristes dans le pays, instabilité institutionnelle, etc. Aussi, à l’instar de plusieurs pays de la région, le Mali fait périodiquement face aux invasions du Criquet pèlerin, Schistocerca gregaria (Forksål, 1775) (Orthoptera: Acrididae). Cet insecte redoutable est capable de passer d’une forme solitaire inoffensive à une forme grégaire vorace en formant des essaims et des bandes larvaires qui s’attaquent aux cultures et pâturages en provoquant des dégâts importants. [...] [less ▲]

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See detailGestion du risque d’érosion côtière en Côte d’Ivoire : Cas du déguerpissement dans la commune de Port-Bouët à Abidjan
Comoe, Raymond; Ozer, Pierre ULg

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

L’Etat de Côte d’Ivoire a décidé, depuis 2011, de faire déguerpir les populations des zones à risques du District Autonome d’Abidjan afin de réduire les impacts des catastrophes naturelles. La dernière ... [more ▼]

L’Etat de Côte d’Ivoire a décidé, depuis 2011, de faire déguerpir les populations des zones à risques du District Autonome d’Abidjan afin de réduire les impacts des catastrophes naturelles. La dernière vaste opération de déguerpissement concerne l’assainissement du littoral dans la commune de Port-Bouët menacé, selon les autorités, par l’avancée de la mer. [...] [less ▲]

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See detailCap-Haïtien ou comment construire le risque d’inondations en une décennie.
Gracius, Gracia Joseph; Ozer, Pierre ULg

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

Cap-Haïtien, ville située au Nord d’Haïti, connait une multiplication sans précédent des inondations. Alors que certains observateurs sont tentés de blâmer les conséquences du changement climatique, nous ... [more ▼]

Cap-Haïtien, ville située au Nord d’Haïti, connait une multiplication sans précédent des inondations. Alors que certains observateurs sont tentés de blâmer les conséquences du changement climatique, nous tentons ici de démontrer que l’absence totale d’aménagement du territoire, la dégradation de l’environnement, l’inexistence de bonne gouvernance et l’exode rural sont les principaux ingrédients de la création d’un risque jadis exceptionnel. Cette recherche a pour objectif d’analyser l’évolution de l’extension urbaine dans deux milieux humides (la rivière Haut-du-Cap et la mangrove à Petite-Anse) de 2004 à 2016 et d’évaluer la perception du risque d’inondation par les populations locales. [...] [less ▲]

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See detailImpact de la vulnérabilité et de la résilience aux changements environnementaux sur la mobilité en Afrique de l'Ouest
Zickgraf, Caroline ULg; Vigil Diaz Telenti, Sara ULg; de Longueville, Florence et al

in Ginesu, Sergio; Ozer, André; Ozer, Pierre (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques (2016, May 19)

Du Sahel à la zone côtière, l’Afrique de l'Ouest connaît une variété de changements environnementaux résultant tant de processus lents que de chocs soudains. Ces changements influencent significativement ... [more ▼]

Du Sahel à la zone côtière, l’Afrique de l'Ouest connaît une variété de changements environnementaux résultant tant de processus lents que de chocs soudains. Ces changements influencent significativement les schémas de migration de populations dans et hors de l'Afrique de l'Ouest. Dans cette région où les ressources naturelles constituent la base des moyens de subsistance et de la sécurité alimentaire (pêche et agriculture), la relation entre les changements environnementaux et les vulnérabilités socio-économiques est particulièrement préoccupante. [...] [less ▲]

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See detailDémarrage et longueur de la saison de pluies dans la région de Kinshasa et risques induits
Makanzu Imwangana, Fils; Phuati, Giscard; Ozer, Pierre ULg et al

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

La détermination et la prévision du démarrage de la saison de pluies sont des questions cruciales à travers la RDC en général et en particulier dans l’hinterland de la ville de Kinshasa étant donné que ... [more ▼]

La détermination et la prévision du démarrage de la saison de pluies sont des questions cruciales à travers la RDC en général et en particulier dans l’hinterland de la ville de Kinshasa étant donné que l’agriculture y est pluviale. Elles permettent de déterminer le calendrier agricole, particulièrement le semis, et influence le rendement. La question qui se pose toujours est celle de savoir s’il y a un changement climatique dans la région de Kinshasa qui se traduirait par la variation de la saison des pluies de 1961 à 2010. Et si c’est le cas, quels en sont les impacts sur l’activité agricole et autres ? Cette étude mène une analyse de la variabilité interannuelle et décennale de la saison des pluies à partir de deux séries chronologiques dans la région de Kinshasa. [...] [less ▲]

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See detailEvolution récente du trait de côte dans le Golfe de Guinée : Exemples du Togo et du Bénin
Ozer, Pierre ULg; Hountondji, Yvon-Carmen; de Longueville, Florence

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

L’interface terre-mer est un environnement extrêmement fragile. De par le monde, les littoraux sont menacés par une multitude de facteurs parfois naturels et le plus souvent anthropiques. Ainsi, aux ... [more ▼]

L’interface terre-mer est un environnement extrêmement fragile. De par le monde, les littoraux sont menacés par une multitude de facteurs parfois naturels et le plus souvent anthropiques. Ainsi, aux perturbations locales occasionnées aux zones côtières par les infrastructures portuaires, les barrages, les prélèvements de sédiments à même la plage ou encore l’extension urbaine, s’ajoutent les conséquences globales des changements climatiques, dont l’élévation certaine du niveau des océans et l’amplification probable de conditions météo-marines dévastatrices. Cet article évalue la récente évolution du trait de côte au Togo et au Bénin où plusieurs études localisées démontrent que les plages sableuses connaissent des modifications (accumulation ou érosion) majeures ces dernières décennies. Dans le but d’avoir une vision globale de la dynamique côtière sur les 170 kilomètres de plages de ces deux pays d’Afrique de l’Ouest, des images satellitaires à haute définition spatiale disponibles en open access sur Google Earth sont utilisées de manière diachronique. [...] [less ▲]

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See detailPerceptions, des autorités nationales aux petits producteurs locaux, des changements climatiques en Equateur
Ozer, Pierre ULg; Perrin, Dominique ULg

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

Lors de chaque conférence des parties (COP) à la Convention-cadre des Nations Unies sur les changements climatiques (CCNUCC), la question de l’adaptation des pays les plus vulnérables aux conséquences des ... [more ▼]

Lors de chaque conférence des parties (COP) à la Convention-cadre des Nations Unies sur les changements climatiques (CCNUCC), la question de l’adaptation des pays les plus vulnérables aux conséquences des dérèglements climatiques est incontournable. En 2009, lors de la COP15 de Copenhague, les pays développés dont la responsabilité historique des émissions de gaz à effet de serre est avérée se sont engagés à consacrer annuellement 100 milliards d’USD à partir de 2020 pour aider les pays en développement à réduire leurs émissions et s’adapter aux effets des changements climatiques. D’ici là, les pays du Nord se doivent de mettre en place des projets d’assistance aux pays du Sud sur cette thématique. Dans ce cadre, la Wallonie a lancé un programme de solidarité internationale « climat » dans le cadre d’un développement durable des pays partenaires du Sud. [...] [less ▲]

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See detailPlace des pertes et préjudices liés aux changements climatiques dans les accords internationaux
Perrin, Dominique ULg; Ozer, Pierre ULg

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

Pour les pays les plus vulnérables, les « pertes et préjudices » (traduit de l’anglais « Loss and damage ») causés par les changements climatiques sont une question cruciale. Il n’existe pas de définition ... [more ▼]

Pour les pays les plus vulnérables, les « pertes et préjudices » (traduit de l’anglais « Loss and damage ») causés par les changements climatiques sont une question cruciale. Il n’existe pas de définition convenue des « pertes et préjudices », mais l’expression fait globalement référence à toute une série de dommages subis en raison du changement climatique et ne pouvant pas être évités par des efforts d’atténuation ou d’adaptation. La question est devenue l’un des principaux enjeux de la conférence des parties (COP) à la Convention-cadre des Nations Unies sur les changements climatiques (CCNUCC). Le récent « Accord de Paris » adopté en décembre 2015 lors de la COP21 de la CCNUCC a ouvert de nouvelles pistes pour la prise en considération de cette question. L’objectif de cet exposé introductif au colloque est bien de dresser un état des lieux complet sur les enjeux complexes liés à la prise en compte des « pertes et préjudices », tant sur les aspects scientifiques relevés par le Groupe d'experts intergouvernemental sur l'évolution du climat (GIEC) que sur les aspects économiques, sociaux et géopolitiques. [less ▲]

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See detailLa responsabilité climatique dans les défis urbains contemporains: évaluation et mise en contexte pour la ville de Bujumbura, Burundi
Nibigira, Léonidas; Ozer, Pierre ULg; Havenith, Hans-Balder ULg

in Ozer, Pierre; Ginesu, Sergio; Ozer, André (Eds.) La géographie physique et les risques de pertes et préjudices liés aux changements climatiques - Livre de résumés (2016, May 19)

A Bujumbura, la capitale du Burundi, les préjudices liés aux risques naturels deviennent de plus en plus une réalité quotidienne. Les cas les plus ressentis sont ceux liés aux inondations, aux glissements ... [more ▼]

A Bujumbura, la capitale du Burundi, les préjudices liés aux risques naturels deviennent de plus en plus une réalité quotidienne. Les cas les plus ressentis sont ceux liés aux inondations, aux glissements de terrain et à l'érosion. Les épidémies relatives aux conditions sanitaires précaires deviennent de plus en plus récurrentes. [...] [less ▲]

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See detailCentralized Model Predictive Control of Multi-Terminal Direct Current Grids
Papangelis, Lampros ULg

in Proc. of the 8th IEEE Benelux Young Researchers Symposium 2016 (2016, May 12)

This work describes a centralized control for Multi-Terminal Direct Current (MTDC) grids. It is based on Model Predictive Control (MPC) whose aim is to satisfy a desired schedule, while avoiding or ... [more ▼]

This work describes a centralized control for Multi-Terminal Direct Current (MTDC) grids. It is based on Model Predictive Control (MPC) whose aim is to satisfy a desired schedule, while avoiding or correcting any system limit violation. The central controller collects voltage and power measurements from the converters of the system in regular intervals and sends back converter power setpoints. The latter are calculated by solving a quadratic programming problem subject to linear constraints and using a simplified model for the DC system. In addition, the overall MTDC grid control structure including the local and the centralized controllers is described. [less ▲]

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See detailCombined Centralized and Local Voltage correction in Active Distribution Network
Soleimani Bidgoli, Hamid ULg

in Combined Centralized and Local Voltage correction in Active Distribution Network (2016, May 12)

This paper presents a two-level real-time voltage control scheme to address the voltage violations in distribution grids hosting a significant number of Dispersed Generation Units (DGUs). The proposed ... [more ▼]

This paper presents a two-level real-time voltage control scheme to address the voltage violations in distribution grids hosting a significant number of Dispersed Generation Units (DGUs). The proposed scheme consists of a centralized and a local reactive power control. The local control provides fast response after a disturbance, reducing its impact and enhancing voltage quality. The centralized control relies on Model Predictive Control (MPC). It uses measurements collected throughout the network to bring the voltages inside desired limits. To do so, it adjusts in a coordinated way the reactive power set-points of the DGUs taking into account the local controls. The control method effectiveness has been evaluated on a 75-bus 11-kV test system hosting 22 DGUs. [less ▲]

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See detailOn the Laser Cladding of Ti Alloy Ti-6Al-4V with Low Laser Power
Mertens, Anne ULg; Paydas, Hakan ULg; Tchuindjang, Jérôme Tchoufack ULg et al

in Ventakesh, V.; Pilchak, A.L.; Allison, J.E. (Eds.) et al Proc. of the 13th World Conference on Titanium (2016, May 06)

Laser cladding is an economic layer-by-layer near-net-shape process for the production and the repair of metallic parts. In this process, a metallic powder is projected onto a substrate while being molten ... [more ▼]

Laser cladding is an economic layer-by-layer near-net-shape process for the production and the repair of metallic parts. In this process, a metallic powder is projected onto a substrate while being molten by a laser beam. Laser sources with fairly high power – i.e. typically 2kW − are often used to ensure short building times and high productivity. However, this approach has limitations. Indeed, it is very difficult to produce thin walls at high laser power. Moreover, an increase of the incident energy may give rise to a relatively coarser microstructure, and this will in turn affect the mechanical properties of the component. In order to address these issues, this paper aims at assessing the potential of a laser source with a lower maximum power of 300W to enhance the flexibility of the process. Two types of samples – i.e. thin walls or bulk deposits − were produced at low laser power from alloy Ti-6Al-4V. Their geometry, microstructures and local hardness are characterised and correlated with the thermal history experienced during fabrication. [less ▲]

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See detailGender, Jobs and Empowerment in Vietnamese Small Enterprises of Traditional Handicraft: Case Study in the Periphery of Hanoi
Nguyen, Thi Thu Hien ULg; Lebailly, Philippe

in The 2nd World Conference on Women’s Studies WCWS - 2016, 5th – 6th May, 2016 Colombo, Sri Lanka (2016, May 05)

Women are the main workforce of traditional craft sector in Vietnam. They not only actively participate in production, but also succeed in leading enterprises as managers. Even though women contribute ... [more ▼]

Women are the main workforce of traditional craft sector in Vietnam. They not only actively participate in production, but also succeed in leading enterprises as managers. Even though women contribute much to the achievement of companies, they face many constraints in working places due to theories of Confucianism and Buddhism. This research aims at answering two questions: (i) whether or not gender inequality exists in small scale craft enterprises and, (ii) how is empowerment the women employees in the firms. Both qualitative and quantitative methodologies are applied to collect information in order to clarify the research questions. Qualitatively, ethnographic approach is employed. It is explained that since 2014 the researchers go to the study areas to survey employment in the enterprises. In addition, participatory observation and oral history recording were also used to collect information (evidence) of gender inequality in employment and women empowerment in rural companies. Cross checking and supplementing were used for gathering information from communal leaders, women unions’ leaders and local residents. Quantitatively, descriptive statistics were used to analysis labor force, gender and employment of 50 enterprises in 3 traditional artisanal communes in Vietnam to find out gender inequality. Based on the result of analysis, some policy implications will be recommended to empower women as well as to reduce gender inequality in the small enterprises in rural areas [less ▲]

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See detailFucoidan: a marine polysaccharide for SPECT diagnosis of thrombosis
Chollet, Lucas; Saboural, Pierre; Rouzet, François et al

in Frontiers (2016, May)

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See detailElectromagnetic Investigation of the Pb-Zn deposit of Lontzen, Belgium
Evrard, Maxime ULg; Pirard, Eric ULg; Nguyen, Frédéric ULg

in First International Conference: MINING IN EUROPE, ABTSRACT volume (2016, May)

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