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See detailDrift of tilted shielded rotary atomisers based on wind tunnel measurements
Ouled Taleb Salah, Sofiene ULg; Massinon, Mathieu ULg; De Cock, Nicolas ULg et al

in Proceedings of International Symposium on Crop Protection Ghent 2015 (2015)

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See detailQui a peur des droits de l’enfant ?
Fierens, Jacques ULg

in Actes du colloque ‘La révolution silencieuse. 25 ans des droits de l’enfant’, 20-21 novembre 2014 (2015)

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See detailPositive operations on convective drying of sewage sludge: comparison of back mixing and sawdust addition
Li, Jie; Fraikin, Laurent ULg; Salmon, Thierry ULg et al

in Proceedings of the 5th European Drying Conference (EuroDrying'2015) (2015)

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See detail"Couvrez-vous et plaidez !" La liberté d’expression des avocats
Fierens, Jacques ULg

in Renuart, Noémie; Vuye, Hendrik; Rasson, Anne-catherine (Eds.) Six figures de la liberté d’expression (2015)

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See detailCapacity building and services to assist local farmers to improve aquaculture management in Vietnam
Lebailly, Philippe ULg; Bui Thi, Nga; Ngo Thi Thu Hang, ULg et al

in Rajamangala University of Technology Isan (Ed.) The 5th International Conference on Sustainable Animal Agriculture for Developing Countries (SAADC 2015) : Abstract Book (2015)

Since 2000, we can observe important changes in traditional production systems of coastal communes in North Vietnam. Faced with relatively low incomes, rice farms converted the surfaces available to them ... [more ▼]

Since 2000, we can observe important changes in traditional production systems of coastal communes in North Vietnam. Faced with relatively low incomes, rice farms converted the surfaces available to them in aquaculture ponds. These are difficult to reverse conversions were carried out by farmers seeking to improve family income in areas of relatively low rice productivity. These changes have had a significant impact on the revenues generated in coastal villages with changes in work organization and the upstream business opportunities for feed plants. This type of family aquaculture has grown rapidly to meet domestic demand but also to export markets. Faced with these voluntary initiatives, the Vietnamese authorities have had difficulties to coach and support these new producers in sustainable development schemes for fresh water or brackish water aquaculture. In addition, climate change could significantly affect these areas particularly exposed to rising sea waters. Moreover, aquaculture producers respond to logic relatively isolated individual entrepreneurs. They deliver their products to many collectors who engage strong competition. This is particularly true at the sub-sectors supplying the domestic market. The Vietnamese marketing system for aquaculture products is generally considered competitive and efficient. It involves different stakeholders (collectors, dealers, wholesalers and processors) that develop often difficult short-term strategies to understand and which do not permit a good traceability of production. At producer level, understanding of market mechanisms is very limited which makes it difficult to decision support for investments and marketing. Meanwhile, producers are exposed to high price volatility. Small producers oriented towards the local market are particularly exposed and vulnerable to this issue and it is important to understand the strategies that can be implemented to ensure against this form of risk. In this context, this paper describes two initiatives conducted in the Northern area of Vietnam to strengthen the sustainability of clam’s farms and supported by researchers from Vietnam National University of Agriculture. [less ▲]

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See detailObservations sur la forme, l'état du support et la mise en page du P.Vat.gr. 11
Carlig, Nathan ULg

in Amato, Eugenio; Marganne, Marie-Hélène (Eds.) Le traité "Sur l'exil" de Favorinos d'Arles. Papyrologie, philologie et littérature (2015)

Observations sur le papyrus de Favorinos, son état de conservation et ses caractéristiques de forme et de mise en page, effectuées après autopsie du rouleau à la Biblioteca Apostolica Vaticana

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See detailUse of polypropylene fibers coated with nano-silica particles into a cementitious mortar
Coppola, Bartolomeo ULg; Di Maio, Luciano; Scarfato, Paola et al

in POLYMER PROCESSING WITH RESULTING MORPHOLOGY AND PROPERTIES: FEET IN THE PRESENT AND EYES AT THE FUTURE (2015)

Fiber reinforced cementitious composite (FRCC) materials have been widely used during last decades in order to overcome some of traditional cementitious materials issues: brittle behaviour, fire ... [more ▼]

Fiber reinforced cementitious composite (FRCC) materials have been widely used during last decades in order to overcome some of traditional cementitious materials issues: brittle behaviour, fire resistance, cover spalling, impact strength. For composite materials, fiber/matrix bond plays an important role because by increasing fiber/matrix interactions is possible to increase the behaviour of the entire material. In this study, in order to improve fiber to matrix adhesion, two chemical treatments of polypropylene fibers were investigated: alkaline hydrolysis and nano-silica sol-gel particles deposition. Treatmtents effect on fibers morphology and mechanical properties was investigated by scanning electron microscopy (SEM) and tensile tests. SEM investigations report the presence of spherical nano-silica particles on fiber surface, in the case of sol-gel process, while alkaline hydrolysis leads to an increase of fibers roughness. Both treatments have negligible influence on fibers mechanical properties confirming the possibility of their use in a cementitious mortar. Pullout tests were carried out considering three embedded length of fibers in mortar samples (10, 20 and 30 mm, respectively) showing an increase of pullout energy for treated fibers. The influence on fiber reinforced mortar mechanical properties was investigated by three-point flexural tests on prismatic specimens considering two fibers length (15 and 30 mm) and two fibers volume fractions (0.50 and 1.00 %). A general increase of flexural strength over the reference mix was achieved and an overall better behaviour is recognizable for mortars containing treated fibers. [less ▲]

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See detailThe Syntax-Semantics Interface in Earlier Egyptian: a Case Study in Verbs of Cognition
Winand, Jean ULg

in Allen, James P.; Collier, Mark; Stauder, Andréas (Eds.) Coping with Obscurity: the Brown Workshop on Earlier Egyptian Grammar (2015)

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See detailExperimental investigation of shear bolted connections for tubular racking structures
D'Antimo, Marina ULg; Demonceau, Jean-François ULg; Jaspart, Jean-Pierre ULg et al

in XXV Congresso CTA: Salerno 1-3 ottobre 2015 (2015)

The competition in the field of storage racking structures is so that the companies proposing structural solutions for such structures are always looking for an optimisation of the structural elements ... [more ▼]

The competition in the field of storage racking structures is so that the companies proposing structural solutions for such structures are always looking for an optimisation of the structural elements, through the use of optimized thin wall members, and for an optimisation on site, by proposing easy and cheap connections to limit the time of construction. Within this framework, a simple connection with long bolts for tubular racking structures represents an interesting solution whose shear resistance is not covered by the rules provided by the current EC3. In order to verify the possibility to extend the formulations given in EC3 for connections between plates elements to this kind of connection solution in the present paper the results of an experimental campaign on 24 bolted connections, between hollow tube and long through bolts, are presented and analysed. In particular the attention is focused on the bearing failure mode around the tube’s hole due to bolt’s shank contact pressure. The performed analyses evidenced, preliminarily, that Eurocode 3 gives conservative values for the prediction of the bearing resistance. [less ▲]

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See detailThe extreme UV imager telescope on-board the Solar Orbiter mission: overview of phase C and D
Halain, Jean-Philippe ULg; Rochus, Pierre ULg; Renotte, Etienne ULg et al

in SPIE Optical Engineering+ Applications (2015)

The Solar Orbiter mission is composed of ten scientific instruments dedicated to the observation of the Sun’s atmosphere and its heliosphere, taking advantage of an out-of ecliptic orbit and at perihelion ... [more ▼]

The Solar Orbiter mission is composed of ten scientific instruments dedicated to the observation of the Sun’s atmosphere and its heliosphere, taking advantage of an out-of ecliptic orbit and at perihelion reaching a proximity close to 0.28 A.U. On board Solar Orbiter, the Extreme Ultraviolet Imager (EUI) will provide full-Sun image sequences of the solar corona in the extreme ultraviolet (17.1 nm and 30.4 nm), and high-resolution image sequences of the solar disk in the extreme ultraviolet (17.1 nm) and in the vacuum ultraviolet (121.6 nm). The EUI concept uses heritage from previous similar extreme ultraviolet instrument. Additional constraints from the specific orbit (thermal and radiation environment, limited telemetry download) however required dedicated technologies to achieve the scientific objectives of the mission. The development phase C of the instrument and its sub-systems has been successfully completed, including thermo-mechanical and electrical design validations with the Structural Thermal Model (STM) and the Engineering Model (EM). The instrument STM and EM units have been integrated on the respective spacecraft models and will undergo the system level tests. In parallel, the Phase D has been started with the sub-system qualifications and the flight parts manufacturing. The next steps of the EUI development will be the instrument Qualification Model (QM) integration and qualification tests. The Flight Model (FM) instrument activities will then follow with the acceptance tests and calibration campaigns. [less ▲]

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See detailA preliminary regional assessment of earthquake-induced landslide susceptibility for Vrancea Seismic Region
Micu, Mihai; Balteanu, Dan; Iunescu, Constantin et al

in EGU General Assembly Conference Abstracts (2015)

In seismically-active regions, earthquakes may trigger landslides enhancing the short-to-long term slope denudation and sediment delivery and conditioning the general landscape evolution. Co-seismic slope ... [more ▼]

In seismically-active regions, earthquakes may trigger landslides enhancing the short-to-long term slope denudation and sediment delivery and conditioning the general landscape evolution. Co-seismic slope failures present in general a low frequency - high magnitude pattern which should be addressed accordingly by landslide hazard assessment, with respect to the generally more frequent precipitation-triggered landslides. The Vrancea Seismic Region, corresponding to the curvature sector of the Eastern Romanian Carpathians, represents the most active sub-crustal (focal depth > 50 km) earthquake province of Europe. It represents the main seismic energy source throughout Romania with significant transboundary effects recorded as far as Ukraine and Bulgaria. During the last 300 years, the region featured 14 earthquakes with M>7, among which seven events with magnitude above 7.5 and three between 7.7 and 7.9. Apart from the direct damages, the Vrancea earthquakes are also responsible for causing numerous other geohazards, such as ground fracturing, groundwater level disturbances and possible deep-seated landslide occurrences (rock slumps, rock-block slides, rock falls, rock avalanches). ... [less ▲]

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See detailSensitivity analysis for climate change impacts, adaptation and mitigation projection with pasture models
Bellocchi, G.; Ehrhardt, F.; Soussana, J. F. et al

in Climate-Smart Agriculture 2015 (2015)

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See detailGIS-Based Landslide Susceptibility Mapping in the Great Lakes Region of Africa, Case Study of Bujumbura Burundi
Nibigira, Léonidas ULg; Draidia, Salah ULg; Havenith, Hans-Balder ULg

in Engineering Geology for Society and Territory - Volume 2: Landslide Processes (2015)

Abstract: Landslides in Central Africa represent a constant threat to the population. The present work took its motivation from the increasing number of recorded incidents in recent times. It is focused ... [more ▼]

Abstract: Landslides in Central Africa represent a constant threat to the population. The present work took its motivation from the increasing number of recorded incidents in recent times. It is focused on the analysis of mass movements in a regional context. Remote sensing based on the use of satellite images (Pleiades images of 2011) and aerial photographs (1957, 1958 and 1981) allowed us to identify instabilities at different scales. The study of these mass movements and the characterization of the processes governing ... [less ▲]

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See detailSe déplacer moins ou se déplacer autrement. Que disent les assemblages de l’Épigravettien dans l’arc liguro-provençal sur les changements dans la mobilité à la fin du Paléolithique supérieur ?
Tomasso, Antonin ULg

in Naudinot, Nicolas; Meignen, Liliane; Binder, Didier (Eds.) et al Les systèmes de mobilité de la Préhistoire au Moyen Âge (2015)

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See detailStorytelling as Strategy to Envision the Changing Meaning of Heritage From an Object-focused Approach Towards an Intertwined Contextual One
Gantois, Gisele ULg; Schoonjans, Yves

in Kepczynska-Walczak, Anetta (Ed.) Envisioning Architecture: Image, Perception and Communication of Heritage (2015)

Locality and place making as elements of social sustainability play a significant role in a world of growing globalization. More and more researchers and professionals realize that the identity of small ... [more ▼]

Locality and place making as elements of social sustainability play a significant role in a world of growing globalization. More and more researchers and professionals realize that the identity of small communities is also constructed by modest heritage, responsible for a large part of the quality and social cohesion. Once we focus on the historical, social, cultural, ecological and physical meshwork, we transcend the solely focus on the object to explore the physical, emotional and experiential realities of place and how these are rooted in the individual and collective memory as they unfold in the everyday life. In the creation of a sustainable and resilient society the meaning and appropriation of that heritage is too important and too complex to restrict the significance of it purely to the artefact itself with its acknowledged architectural, historical or archaeological values. How can new meaning of place be enacted, created and negotiated in current times of migration and mobility? What is the status and role of modest heritage in small communities today? Does it still play a considerable role in the identity, quality and social cohesion of a region? How do we explore the intangible dimension of the tangible? How do we deal with the intangible and informal aspects of heritage? This paper concentrates on these issues in the complex urban countryside of the region of Flanders (Belgium). Flanders is a highly dense and post-industrialized area where the countryside is under an urbanized pressure. Within the fabric we detect numerous small-scale heritage as chapels, parsonages, ice-cellars, donjons, square farms and wind- and watermills. Possible relationships of heritage with its context will be tackled, explored and tested in different layers through particular cases within the strategy of storytelling as a spatial practice. [less ▲]

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See detail"Arianisme “vandale” et controverse religieuse : le cas de la Disputatio Cerealis contra Maximinum"
Fialon, Sabine ULg

in Wolff, Étienne (Ed.) Littérature, politique et religion en Afrique vandale (2015)

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See detailLes enseignants à l'image. Représentations iconographiques et audiovisuelles du mouvement enseignant en Belgique francophone (1995-1996)
Lanneau, Catherine ULg

in Rochet, Bénédicte; Bettens, Ludo; Gillet, Florence (Eds.) et al Quand l'image (dé)mobilise. Iconographie et mouvements sociaux au XXe siècle (2015)

Les réformes institutionnelles de 1988-1989 ont transféré aux Communautés les compétences en matière d’enseignement. Pour la Communauté française, cette responsabilisation a très vite rimé avec la ... [more ▼]

Les réformes institutionnelles de 1988-1989 ont transféré aux Communautés les compétences en matière d’enseignement. Pour la Communauté française, cette responsabilisation a très vite rimé avec la nécessité de réaliser d’importantes économies et donc d’importantes réformes structurelles. Une première vague de protestation secoue Bruxelles et la Wallonie en 1990 mais, cinq ans plus tard, un nouveau plan d’économies préparé par la socialiste Laurette Onkelinx, Ministre-Présidente de la Communauté française, en charge notamment de l’Education, donne naissance à un long et douloureux mouvement de protestation. Celui-ci semble matérialiser la rupture entre une base enseignante proche, selon les réseaux, du PS ou du PSC, et un Exécutif au sein duquel ces deux partis fonctionnent en coalition. Réduction des dépenses, suppression de trois mille postes, fusions d’écoles, tous les ingrédients sont réunis pour que la situation soit explosive. Elle va l’être d’autant plus – et cela marquera d’ailleurs durablement les esprits – que certaines manifestations de mécontentement vont s’exprimer avec violence, s’attaquer à des symboliques fortes (la Fête de la Communauté française en septembre 1995, le 1er mai 1996) et perturber la vie privée de la Ministre et de son entourage. Notre contribution s’inscrit dans le volet « images produites ». Elle s’interrogera sur le rôle des images dans la représentation que la presse écrite généraliste a donnée du mouvement enseignant et des enseignants eux-mêmes durant ce conflit. Grâce à certaines archives numérisées, le traitement du mouvement par l’audiovisuel public pourra, lui aussi, être abordé. La photographie de presse, la caricature et le reportage ont-ils contribué à présenter le mouvement enseignant de manière objective et dépassionnée ? Ont-ils au contraire – et jusqu’à quel point ? - intégré les clichés traditionnels véhiculés sur cette catégorie socio-professionnelle (conservatisme, attachement à de supposés « privilèges »…). Quelle image est renvoyée du syndicalisme enseignant ? Comment est mise en scène la relation triangulaire entre grévistes, ministre et public de l’école (parents et élèves) ? Quels sont le poids et le rôle dévolus à chacun ? Quelle est, spécifiquement, le traitement réservé au mouvement par un journal comme La Wallonie ? Comment a-t-il accompagné en images la rupture entre le monde enseignant, la CGSP et le parti socialiste, culminant le 1er mai 1996 ? [less ▲]

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See detailAnalyzing Access, Egress, and Main Transport Mode of Public Transit Journeys: Evidence from the Flemish National Household Travel Survey
Creemers, Lieve; Bellemans, Tom; Janssens, Davy et al

in Proceedings of the 94th Annual Meeting of the Transportation Research Board (2015)

The primary objective of this paper is to explore the influence of socio-demographic and contextual variables on the multimodal character of public transit journeys. Accounting for multimodality in public ... [more ▼]

The primary objective of this paper is to explore the influence of socio-demographic and contextual variables on the multimodal character of public transit journeys. Accounting for multimodality in public transit journeys is important from a demand modeling point of view, especially in the assessment of new projected public transit infrastructure. To meet the objective, data from the national household travel survey of Flanders (Belgium) is analyzed. Based on 2,202 public transit journeys, the main public transit mode choice (bus/tram/metro or train) and access/egress mode choice are simultaneously estimated using a multinomial logit model, and by explicitly making a distinction between unimodal and multimodal transit journeys. The results indicate that various socio-demographical (e.g. age, gender, level of education, household income) and contextual factors (e.g. journey distance, journey motive, urbanization degree, car availability) significantly influence the joint decision process. Total journey distance and car availability are identified as the most important explanatory variables. In terms of model performance, the model appears to yield satisfactory predictions, justifying the integration of the model in more general demand modeling frameworks. [less ▲]

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See detailShear bolted connections for tubular racking structures: Numerical analysis
D'Antimo, Marina ULg; Demonceau, Jean-François ULg; Jaspart, Jean-Pierre ULg et al

in Proceeding of XXV Congresso CTA: Salerno 1-3 ottobre 2015 (2015)

The prediction of the shear resistance of connections as presently given in Eurocode 3, Part 1-8, cannot be applied in a straightforward way to the connection for tubular racking structures realized by ... [more ▼]

The prediction of the shear resistance of connections as presently given in Eurocode 3, Part 1-8, cannot be applied in a straightforward way to the connection for tubular racking structures realized by means of long through bolts. In order to verify the possibility to extend the codified approach to such joint configurations, in the present paper a finite element model with three-dimensional solid elements is established investigating the behaviour of the connections under shear load in a wide range of variability of the geometrical parameters. The validation of the numerical model has been performed starting from the results of experimental tests already performed by the authors at the laboratory on Materials and Structures of the University of Liège. Based on the finite element results, the load displacement curves for all the assemblies were successfully predicted evidencing the important role played by the hole’s geometry and reduced diameter of the bolts on the initial stiffness of the connections. The results of a parametric study by means of a calibrated FE model in Abaqus/CAE allowed to verify the possibility to extend the formulations provided by EC3 for predicting the bearing resistance of plates to these kind of connections and to analyse the influence of the main parameters governing the bearing resistance: the distance e1 between the hole and the edge of the tube, the distance e2 between the hole and the lateral edge of the plate composing the tube section and the thickness t of the tube. [less ▲]

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See detailAnabase et Catabase dans les représentations indo-iraniennes archaïques
Swennen, Philippe ULg

in Pierre Bonnechère, Gabriela Cursaru (Ed.) Katabasis dans la tradition littéraire et religieuse de la Grèce ancienne (2015)

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See detailDes insectes au menu: apports protéiques et nutriments particuliers?
Caparros Megido, Rudy ULg; Alabi, Taofic ULg; Haubruge, Eric ULg et al

in 56èmes Journées Nationales de Diététique et de Nutrition (2015)

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See detailLes mentions d'auteurs antiques dans les chansons de geste françaises
Henrard, Nadine ULg

in Haugeard, Philippe; Ribémont, Bernard (Eds.) Chanson de geste et savoirs savants, Convergences et interférences (2015)

Les origines savantes ou populaires des épopées françaises médiévales ont longtemps fait débat. Il s'avère que ces textes contiennent un très grand nombre de références à des personnages issus de ... [more ▼]

Les origines savantes ou populaires des épopées françaises médiévales ont longtemps fait débat. Il s'avère que ces textes contiennent un très grand nombre de références à des personnages issus de l’Antiquité qui témoignent d’une formation scolaire chez les auteurs des chansons. Sur la base d'un examen de l'ensemble du corpus, cette étude s'intéresse plus particulièrement aux mentions explicites faites à des auteurs antiques, qu'ils soient grecs (Homère, Aristote, Platon) ou latins (Virgile, Ovide, César, Caton, Sénèque). En tenant de déterminer les traditions qui ont pu nourrir l'inspiration des auteurs des chansons de geste, elle s'emploie à définir les situations dans lesquelles les références en question apparaissent, et s’interroge sur les finalités que poursuivent les poètes à travers l’évocation des auteurs antiques, dont certains, comme César ou Virgile, sont davantage restés dans les mémoires pour des éléments réels ou imaginaires de leur vie plutôt que pour leur œuvre. [less ▲]

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See detailPerception des changements de précipitation et migration au Burkina Faso
de Longueville, Florence; Gemenne, François ULg; Ozer, Pierre ULg

in Erpicum, Michel (Ed.) Actes du 28e Colloque International de l’Association Internationale de Climatologie (2015)

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See detailWaste heat recovery rankine cycle based system modeling for heavy duty trucks fuel saving assessment
Grelet, Vincent; Lemort, Vincent ULg; Nadri, Madiha et al

in Proceedings of the 3rd ASME International Seminar on ORC Power Systems (ORC) (2015)

This paper presents a method to model heat exchangers used in waste heat recovery Rankine based systems in heavy duty trucks. The method is developed to predict both transfer and working fluid physical ... [more ▼]

This paper presents a method to model heat exchangers used in waste heat recovery Rankine based systems in heavy duty trucks. The method is developed to predict both transfer and working fluid physical properties such as temperature and density after the heat exchange process. Due to the flexibility of such a model, it can be used for a numerous quantity of fluids including water-alcohol mixture. A validation of the developed model is shown and compared to steady state and dynamic test results. The model shows good performance as well in terms of accuracy, which is in the range of 5K error as in computational time which is faster than real time and makes it suitable for concept optimization, control and fuel economy evaluation. [less ▲]

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See detailLa cure aux eaux de Balaruc selon Nicolas Dortoman : Traits communs au thermalisme renaissant et particularités d'après le De causis et effectibus
Xhayet, Geneviève ULg

in Meyers, Jean, Pérez-Jean, Brigitte (Ed.) Nicolas Dortoman et Balaruc : La médecine thermale à la Renaissance (2015)

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See detailEvaluation de l’efficacité d’une approche didactique en formation d’enseignants du secondaire supérieur : la compétence schématiser en sciences biologiques
Poffé, Corentin ULg; Laschet, Mélanie ULg; Hindryckx, Marie-Noëlle ULg

in Detroz, Pascal; Borsu, Olivier (Eds.) L'évaluation à la lumière des contextes et des disciplines (2015)

Présentation d'un dispositif d'évaluation de l'efficacité d'une intervention didactique en formation d'enseignants en sciences biologiques portant sur les supports d'enseignement, et plus particulièrement ... [more ▼]

Présentation d'un dispositif d'évaluation de l'efficacité d'une intervention didactique en formation d'enseignants en sciences biologiques portant sur les supports d'enseignement, et plus particulièrement, la compétence schématiser. Une analyse des besoins, une construction d'un module de formation et son administration puis l'évaluation du dispositif construit, tant au niveau des futurs enseignants qu'au niveau des formateurs. [less ▲]

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See detailChallenges in teaching architectural morphogenesis
Stals, Adeline ULg; Elsen, Catherine ULg; Jancart, Sylvie ULg et al

in Proceedings of the 3rd International Conference for Design Education Researchers (2015)

Reviewing the successive cognitive, operative and constructive models of architectural morphogenesis through time, the paper first recalls students and teachers in architecture how designers started ... [more ▼]

Reviewing the successive cognitive, operative and constructive models of architectural morphogenesis through time, the paper first recalls students and teachers in architecture how designers started experimenting digital design to reach self-generative, morphogenetic morphologies. Generally referred to as “non-standard architecture”, this innovative morphogenesis favours a new kind of spatial and architectural audacity but also generates three types of rupture: i) a rupture between form and structure; ii) a rupture in terms of process continuity and iii) a rupture in terms of multi-disciplinary collaboration. We consequently have to acknowledge the fact that, at a current state, non-standard architecture still struggles in terms of self-coherency and implementation, leaving a large amount of projects at their virtual, embryonic state especially in pedagogical contexts. We believe the challenge resides in overcoming the overly simplistic and reductionist appeal of purely formal and visual non-standard architecture: these morphologies should, on the contrary, be intrinsically defined by their form and structure relationship. We suggest such reconciliation should occur during the early stages of architectural education. Two experimental instruments, that perhaps constitute interesting renewed pedagogical models, are reported in this paper and we conclude by listing the remaining challenges when it comes to the teaching of architectural morphogenesis. [less ▲]

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See detailThermal Treatments of AlSi10Mg Processed by Laser Beam Melting
Mertens, Anne ULg; Dedry, Olivier ULg; Reuter, David et al

in Bourell, Dave (Ed.) Proceedings of the 26th International Solid Freeform Fabrication Symposium (2015)

Recent studies have shown that AlSi10Mg processed by Laser Beam Melting (LBM) exhibits a much finer microstructure when compared to its cast counterpart as a consequence of the much faster cooling rates ... [more ▼]

Recent studies have shown that AlSi10Mg processed by Laser Beam Melting (LBM) exhibits a much finer microstructure when compared to its cast counterpart as a consequence of the much faster cooling rates imposed in the LBM process. Such microstructural refinement causes a significant increase in strength and hardness, to such an extent that as-fabricated LBM AlSi10Mg was reported to present hardness value of 127 ± 3 Hv0.5, similar to the hardness of high pressure die cast AlSi10Mg in the aged condition (i.e. 130-133 Hv). Yet, little attention has been given so far to the influence of thermal treatments on the microstructure and mechanical behavior of LBM AlSi10Mg. The present work hence aims to investigate the effect of two different types of heat treatments – i.e. (i) stress relief and (ii) solutionizing and ageing − on the microstructure, hardness and tensile properties of LBM AlSi10Mg. [less ▲]

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See detailEffect of sawdust addition on convective drying of sludges: comparison of the structural characteristics
Li, Jie; Plougonven, Erwan ULg; Fraikin, Laurent ULg et al

in Proceedings of the 5th European Drying Conference (EuroDrying'2015) (2015)

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See detailIn vitro assessment of novel carbohydrates prebiotic potential in a co-inoculation model of the pig intestines
Tran, Thi Hanh Tham ULg; Boudry, Christelle ULg; Everaert, Nadia ULg et al

in Book of Abstracts (2015)

Introduction: Innovative plant biomass fractionation methods produce new feed additives that could modulate the pig intestinal microbial population. Material and methods: Such novel indigestible ... [more ▼]

Introduction: Innovative plant biomass fractionation methods produce new feed additives that could modulate the pig intestinal microbial population. Material and methods: Such novel indigestible carbohydrates (CHO) were investigated for their prebiotic potential and their influence on Salmonella thyphimurium in a co-inocu¬lation in vitro fermentation model of the pig intestines. Inulin, cellobiose, pecto- (POS), iso-malto- (IMOS), xylo-oligosaccharides (XOS), and gluconic acid (GLU) were fermented by fecal microbes for 72h. Salmonella (7.3 log CFU/ml) were co-inoculated after 6h . Fer¬mentation kinetics was modeled and after 6, 12, 24 h, broth was analysed for short-chain fatty acid using HPLC and bacterial population using q-PCR. Results and discussion: Cellobiose was the fastest fermenting CHO followed by inulin and IMOS (P<0.01). After 6h, cellobiose yielded the highest SCFA production (684 mg/g) and lactate molar ratio (0.484). POS fermented slower. XOS and GLU were little fermented (150 and 175 mg SCFA/g after 24h). Nonetheless, GLU yielded the highest butyrate molar ratio (0.290 at 12h) (P<0.01). Although Salmonella counts did not differ, some CHO dis¬played obvious prebiotic properties, namely inulin and IMOS since they supported the highest growth of Lactobacilli and Bifidobacteria populations after 6 and 12h of fermen¬tation (8.18 to 8.56 log CFU/ml) (P<0.01). Cellobiose and GLU scored well for Lactobacilli too, but poorly for Bifidobacteria (6.41 to 6.92 log CFU/ml) (P<0.01). It is concluded that IMOS seem the most promising prebiotic but owing to their fermentation patterns yield¬ing high levels of lactate or butyrate, also cellobiose and GLU deserve further investigation in in vivo models. [less ▲]

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See detailEmpirical model of a variable speed vapor injection compressor for air source heat pump dynamic modeling
Dechesne, Bertrand ULg; Bertagnolio, Stéphane

in International conference on compressors and their systems (2015)

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See detailArrojadite-(BaNa), BaNa3(Na,Ca)Fe2+13Al(PO4)11(PO3OH)(OH)2, a new phosphate mineral from the Luna Albite pegmatite, Dorio commune, Lecco province, Italy.
Vignola, P; Hatert, Frédéric ULg; Baijot, Maxime ULg et al

in 7th International Symposium on Granitic Pegmatites- PEG 2015, Abstract book (2015)

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See detailWorld-wide amateur observations
Eversberg, T.; Aldoretta, E. J.; Knapen, J. H. et al

in Hamann, Wolf-Rainer; Sander, Andreas; Todt, Helge (Eds.) Wolf-Rayet Stars: Proceedings of an International Workshop held in Potsdam, Germany, 1–5 June 2015. Edited by Wolf-Rainer Hamann, Andreas Sander, Helge Todt. Universitätsverlag Potsdam, 2015., p.71-74 (2015)

For some years now, spectroscopic measurements of massive stars in the amateur domain have been fulfilling professional requirements. Various groups in the northern and southern hemispheres have been ... [more ▼]

For some years now, spectroscopic measurements of massive stars in the amateur domain have been fulfilling professional requirements. Various groups in the northern and southern hemispheres have been established, running successful professional-amateur (ProAm) collaborative campaigns, e.g., on WR, O and B type stars. Today high quality data (echelle and long-slit) are regularly delivered and corresponding results published. Night-to-night long-term observations over months to years open a new opportunity for massive-star research. We introduce recent and ongoing sample campaigns (e.g. ɛ Aur, WR 134, ζ Pup), show respective results and highlight the vast amount of data collected in various data bases. Ultimately it is in the time-dependent domain where amateurs can shine most. [less ▲]

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See detailA Lower Tournaisian (Hastarian) silicified brachiopod-coral fauna from South Belgium
Denayer, Julien ULg; Mottequin, Bernard; Poty, Edouard

in Bernecker, Michaela (Ed.) 12th International Symposium on Fossil Cnidaria and Porifera 2015 - Abstract Volume (2015)

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See detailAutomatically Linking Dictionaries of Gallo-Romance Languages Using Etymological Information
Renders, Pascale ULg; Baiwir, Esther ULg; Dethier, Gérard

in Kosem, I.; Jakubiček, M.; Kallas, J. (Eds.) et al Electronic lexicography in the 21st century: linking lexical data in the digital age. Proceedings of the eLex 2015 conference, 11-13 August 2015, Herstmonceux Castle, United Kingdom (2015)

How could we link together digital dictionaries which have no common lexical units, but deal with the same linguistic area? And how could we do that automatically, in order to ensure that all future ... [more ▼]

How could we link together digital dictionaries which have no common lexical units, but deal with the same linguistic area? And how could we do that automatically, in order to ensure that all future updates of these dictionaries are taken into account in the linking process? This contribution exposes the solutions that we propose in the field of French and Gallo-Romance historical lexicography. The digitalisation currently in progress of a work of scientific reference, i.e. the Französisches Etymologisches Wörterbuch (FEW), gives us a mean to link together other dictionaries, such as the Dictionnaire Etymologique de l’Ancien Français (DEAF), the Dictionnaire du Moyen Français (DMF), the Anglo-Norman Dictionary (AND), or the Atlas Linguistique de la Wallonie (ALW), through the use of the references of these dictionaries to the FEW. Concrete examples of linking lexical data are discussed in this context. We also describe a simple peer-to-peer protocol allowing e-dictionaries to be automatically linked in a distributed way using the references of their articles. An implementation based on a simple REST API is suggested to let teams maintaining different e-dictionaries keep their own technologies and data schema. [less ▲]

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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 Pietquin, Paul; Longrée, Dominique; Fialon, Sabine (Eds.) Langues anciennes et analyse statistique : cinquante ans après – Distances textuelles et intertextualités (2015)

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See detailCyclostratigraphy and environmental magnetism approach on the Lochkovian and Pragian from the Praha region, Czech Republic.
Da Silva, Anne-Christine ULg; Chadimova, L.; Hladil, J. et al

in International Association of Sedimentologists Meeting, 22-25th June 2015, Krakow, Abstract book (2015)

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See detailCombining satellite, aerial and ground measurements to assess forest carbon stocks in Democratic Republic of Congo
Beaumont, Benoît; Bouvy, Alban; Stephenne, Nathalie et al

in Geophysical Research Abstracts, Vol. 17, EGU2015-4765-2, 2015 (2015)

Monitoring tropical forest carbon stocks changes has been a rising topic in the recent years as a result of REDD+ mechanisms negotiations. Such monitoring will be mandatory for each country willing to ... [more ▼]

Monitoring tropical forest carbon stocks changes has been a rising topic in the recent years as a result of REDD+ mechanisms negotiations. Such monitoring will be mandatory for each country willing to benefit from these financial incentives in the future. Aerial and satellite remote sensing technologies offer cost advantages in implementing large scale forest inventories. Despite the recent progress made in the use of airborne LiDAR for C stocks estimation, no widely operational and cost effective method has yet been delivered for central Africa forest monitoring. Within the Maï Ndombe region of DRC, the EO4REDD project develops a method combining satellite, aerial and ground measurements. This combination is done in three steps: [1] mapping and quantifying forest cover changes using an object-based semi-automatic change detection (deforestation and forest degradation) methodology based on very high resolution satellite imagery (RapidEye), [2] developing an allometric linear model for above ground biomass measurements based on dendrometric parameters (tree crown areas and heights) extracted from airborne stereoscopic image pairs and calibrated using ground measurements of individual trees on a data set of 18 one hectare plots and [3] relating these two products to assess carbon stocks changes at a regional scale. Given the high accuracies obtained in [1] (> 80% for deforestation and 77% for forest degradation) and the suitable, but still to be improved with a larger calibrating sample, model (R2 of 0.7) obtained in [2], EO4REDD products can be seen as a valid and replicable option for carbon stocks monitoring in tropical forests. Further improvements are planned to strengthen the cost effectiveness value/REDD+ suitability in the 2nd phase of EO4REDD. This 2nd phase will include [A] specific model developments per forest type; [B] measurements of afforestation, reforestation and natural regeneration processes and [C] study of Sentinel data series potential use. [less ▲]

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See detailAnalytic solution for the relative motion of satellites in near-circular low-Earth orbits
Martinusi, Vladimir ULg; Dell'Elce, Lamberto ULg; Kerschen, Gaëtan ULg

in Proceedings of the AAS/AIAA Space FLight Mechanics Meeting (2015)

The paper presents the solution to the problem of the relative motion between two satellites orbiting Earth under the influence of the oblateness and atmospheric drag perturbations. Starting from the ... [more ▼]

The paper presents the solution to the problem of the relative motion between two satellites orbiting Earth under the influence of the oblateness and atmospheric drag perturbations. Starting from the analytic solution to the problem of the absolute motion, the closed-form equations of motion are obtained. No simplifying assumptions are made on the relative dynamics. [less ▲]

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See detailMonte Carlo Simulations of Autorotative Dynamics of a Simple Tower Crane Model
Vanvinckenroye, Hélène ULg; Denoël, Vincent ULg

in Proceedings of the 14th International Conference on Wind Engineering (2015)

The increasing number of crane accidents recorded over the last years might be understood as a need for progress on crane modeling. The induced risk of self-excited vibrations has already been ... [more ▼]

The increasing number of crane accidents recorded over the last years might be understood as a need for progress on crane modeling. The induced risk of self-excited vibrations has already been investigated through numerous experiments. This work presents a simple numerical model of a crane in a turbulent wind field, in order to support the available experimental approaches. First, the problem is defined with the necessary assumptions of the model. Second, the equation of motion is developed and wind characteristics are detailed. This equation presents several specificities requiring dedicated resolution methods. In a first analysis, the crane model is simplified in order to approach the behavior of the parametric pendulum and enable a general comparison of both responses. Indeed, the parametric pendulum is a well-known problem that is already widely described in the literature. In a second step, the response of the crane is studied under a realistic stochastic wind load with the full model. [less ▲]

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See detailAnalyse des contraintes de développement du fruit de la passion au Burundi. Cas de la commune Matongo province Kayanza
Bashangwa Mpozi, Bosco ULg; Ndimanya, Patrice; Lebailly, Philippe ULg

in Brot, Jean (Ed.) Les Cahiers de l'Association Tiers-Monde n° 30-2015 : XXXes Journées sur le Développement "Ethique, entrepreneuriat et développement" (2015)

Face à une situation de manque de terre et de pression démographique sans aucune amélioration des techniques de production, le choix des cultures à pratiquer permettant de rentabiliser la petite surface ... [more ▼]

Face à une situation de manque de terre et de pression démographique sans aucune amélioration des techniques de production, le choix des cultures à pratiquer permettant de rentabiliser la petite surface agricole disponible devient donc crucial pour les producteurs de Matongo en particulier et du Burundi en général. C'est dans ce contexte que le fruit de la passion est intégré dans les systèmes de production de certains ménages de Matongo dans le but d'améliorer leurs conditions de vie grâce à un supplément de revenu. Vu l'état actuel de la vulnérabilité de l'agriculture et de l'économie dans cette commune, il s'avère important de connaître les contraintes rencontrées par les adoptants du fruit de la passion en tenant compte de l'environnement dans lequel se pratique sa culture. [less ▲]

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See detailIndustrial validation of progressive damage models for laminated composite materials and structures: automotive applications
Bruyneel, Michaël ULg; Delsemme, Jean-Pierre; Jetteur, Philippe et al

in NAFELS World Congress 2015 (2015)

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See detailTiers et procédure - Rapport provisoire pour la Belgique
Frankignoul, Laurent ULg

in Les tiers (2015)

Il s'agit du rapport provisoire publié sur le site de l'Association Henri Capitant ; un rapport définitif fera l'objet d'une publication dans la collection consacrée aux journées internationales de l ... [more ▼]

Il s'agit du rapport provisoire publié sur le site de l'Association Henri Capitant ; un rapport définitif fera l'objet d'une publication dans la collection consacrée aux journées internationales de l'Association [less ▲]

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See detailSegmentation of gait cycles using foot-mounted 3D accelerometers
Boutaayamou, Mohamed ULg; Bruls, Olivier ULg; Denoël, Vincent ULg et al

in Proceedings of the IEEE International Conference on 3D Imaging 2015 (2015)

We describe a new gait segmentation method based on the continuous wavelet transform to identify stride-by-stride gait cycles from measurements of foot-mounted three-dimensional (3D) accelerometers. The ... [more ▼]

We describe a new gait segmentation method based on the continuous wavelet transform to identify stride-by-stride gait cycles from measurements of foot-mounted three-dimensional (3D) accelerometers. The detection of such gait cycles is indeed a crucial step for an accurate extraction of relevant gait events such as heel strike, toe strike, heel-off, and toe-off. We demonstrate the ability of this segmentation method, used in conjunction with a validated extraction algorithm, to calculate the following gait (duration) parameters for each gait cycle during the gait of a healthy young subject and of an elderly subject with Parkinson’s disease (PD) in OFF and ON states: durations of (1) loading response, (2) mid-stance, (3) push-off, (4) stance, (5) swing, (6) stride, (7) step, and (8) double support phases. The experimental results show that the proposed method can extract relevant refined gait parameters to quantify subtle gait disturbances in subjects with PD. [less ▲]

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See detailIndividualized Nutrition of preterm: What are the challenges?
SENTERRE, Thibault ULg

in SENTERRE, Thibault (Ed.) Symposium on Intrauterine and Early Postnatal Nutrition: Long-Term Outcome (2015)

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See detailCritical machine cluster identification using the equal area criterion
Weckesser, Johannes ULg; Jóhannsson, Hjörtur; Østergaard, Jacob

in Proceedings of 2015 IEEE Power & Energy Society General Meeting (2015)

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See detailComposite structures optimization including non-linear finite element analysis, design and manufacturing considerations
Bruyneel, Michaël ULg; Grihon, Stéphane; Hudson, Leigh

in NAFEMS World Congress (2015)

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See detailThematic analysis and the 3rd person plural suffix pronoun in the Medinet Habu historical inscriptions
Gillen, Todd Jonathan ULg

in Kousoulis, Panagiotis (Ed.) Proceedings of the Tenth International Congress of Egyptologists (2015)

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See detailLes frontispices des thèses jésuites en Lorraine au XVIIe siècle : lieux éphémères et lieux de mémoire
De Marco, Rosa ULg

in Spica, Anne-E. (Ed.) Les fêtes en Lorraine, XVIe-XVIIe siècles. Des images de mémoire et d'histoire (2015)

"Interroger la relation historique, ornementale et symbolique entre le frontispice de thèse et l'événement qui l'a occasionné, la soutenance, se révèle du plus haut intérêt pour comprendre le ... [more ▼]

"Interroger la relation historique, ornementale et symbolique entre le frontispice de thèse et l'événement qui l'a occasionné, la soutenance, se révèle du plus haut intérêt pour comprendre le fonctionnement de ce document complexe, lorsque la soutenance - exercice scolaire ordinaire - se déroule à l'intérieur d'un cadre festif plus large et extraordinaire comme, conformément aux usages jésuites, une visite prestigieuse au collège, un anniversaire important ou une fête de canonisation..." [less ▲]

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See detailHommes et dieux dans le formulaire métrique indo-iranien ancien
Swennen, Philippe ULg

in Démons iraniens: Actes du colloque international organisé à l'Université de Liège les 5 et 6 février 2009 à l'occasion des 65 ans de Jean Kellens (2015)

No Indo-iranian formula was coordinating gods with demons, but another one, welle attested, was linking mortal men with gods. Initially, it was saying the solidarity between both groups, who were meeting ... [more ▼]

No Indo-iranian formula was coordinating gods with demons, but another one, welle attested, was linking mortal men with gods. Initially, it was saying the solidarity between both groups, who were meeting on the sacrificial ground. Its use in Rigvedic and Avestan texts shows divergent evolutions. In India, men and gods go away from each other. In Iran, the original coordination, whose negative meaning is appearing, is inserted ina an always wider demonic list, which is included in a sentence using another inherited formula, whose theme was the crossing of enmities. During the evolution process of this formula, men go with the ancient *daiva- to demonisation. [less ▲]

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See detailSyntactic polygraphs - A formalism extending both constituency and dependency
Kahane, Sylvain; Mazziotta, Nicolas ULg

in Kuhlmann, Marco; Kanazawa, Makoto; Kobele, Gregory M. (Eds.) Proceedings of the 14th Meeting on Mathematics of Language (MOL 2015) (2015)

Syntactic analyses describe grouping operations that explain how words are combined to form utterances. The nature of these operations depends on the approach. In a constituency-based approach, grouping ... [more ▼]

Syntactic analyses describe grouping operations that explain how words are combined to form utterances. The nature of these operations depends on the approach. In a constituency-based approach, grouping operations are ordered, or stratified, part-whole relations. In a dependency-based approach, grouping operations identify a governor (or head), i.e. they are directed hierarchical relations between words. It is possible to convert a constituency tree into a dependency tree by dereifying the nodes, by identifying the governor and by removing the stratification of the part-whole relations. Polygraphs combine the two types of information into a single structure and are therefore a more powerful formalism. By relaxing constraints, polygraphs also allow to underspecify both kinds of information. [less ▲]

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See detailComparison of the wear behavior of high speed steel grades obtained from conventional casting and laser cladding
Hashemi, Seyedeh Neda ULg; Dedry, Olivier ULg; Lecomte-Beckers, Jacqueline ULg et al

in Materiaux et tribologie jift 2014 (2015)

The wear characteristics of three high speed steel grades were studied, one of them being obtained from a conventional casting process and two others originated from a laser cladding route. Tribological ... [more ▼]

The wear characteristics of three high speed steel grades were studied, one of them being obtained from a conventional casting process and two others originated from a laser cladding route. Tribological tests were carried out at room temperature using a “pin-on-disc” device. The setting of the wear test parameters together with the microstructure of the studied materials seems to strongly influence the subsequent abrasion and wear mechanisms. The results show that the laser cladded high speed steel materials resist better to wear thanks to their ultrafine microstructure compared to the conventional cast material. [less ▲]

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See detailGestes professionnels, propriété d’accompagnement, dispositif de validation des acquis : Trois exemples de couplage entre un dispositif de recherche et un dispositif de formation Symposium court proposé par les universités de Lille 1 et de Liège
Faulx, Daniel ULg; Leclercq, Gilles; Vermelle, Marie-Christine

in Actes du 28ème Colloque de l'Association Internationale de Pédagogie Universitaire (2015)

Ce symposium réunit des chercheurs et des praticiens d’une université belge et d’une université française autour du thème : « quelles recherches sur/pour les enseignements » ? Notre proposition de ... [more ▼]

Ce symposium réunit des chercheurs et des praticiens d’une université belge et d’une université française autour du thème : « quelles recherches sur/pour les enseignements » ? Notre proposition de symposium court s’inscrit dans la continuité des recherches menées dans le pôle Codeus du laboratoire Trigone Cirel[1] et de l’Unité d’Apprentissage et de Formation continue des Adultes de l’Université de Liège (UAFA-ULg)[2]. Nous l’avons intitulé : gestes professionnels, propriété d’accompagnement et dispositif de validation des acquis ; trois exemples de couplage entre un dispositif de recherche et un dispositif de formation. Dans les trois contributions que nous proposons, il sera en effet question de l’association entre une activité de recherche qui se nourrit d’une activité de formation et d’une activité de formation qui exploite l’activité de recherche. Cela nous permettra de rendre compte de travaux menés en cours de formation à des échelles différentes : - à l’échelle du geste singulier de l’enseignant pour la première contribution ; - à l’échelle de la propriété d’accompagnement pour la deuxième ; - à l’échelle d’un dispositif de validation des acquis de l’expérience pour la troisième. Nous commencerons donc ce symposium en ciblant une préoccupation d’ordre micro-pédagogique pour en arriver, par la suite, à des préoccupations plus englobantes. Cela nous permettra de questionner, de différents points de vue, les modalités de collaboration entre dispositifs de formation et dispositifs de recherche, ce qui nous conduira à engager un débat autour des questions suivantes : -.comment les dispositifs de recherche mis en œuvre s’emparent-t-il des dispositifs de formation ? - comment le matériau de recherche est-il collecté, choisi, interprété, analysé, discuté ? - quels sont les cadres de références théoriques et méthodologiques mobilisés, à quoi servent-ils ? - comment l’activité de recherche est-elle distribuée entre les acteurs ? - peut-on parler de savoirs constitués et quels sont-ils ? - comment les dispositifs de formation exploitent-t-ils les dispositifs de recherche, comment s’en emparent-ils ? - etc [less ▲]

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See detailNumerical analysis of hydrocarbon pool fire tests
Tondini, Nicola; Hanus, François; Nadjai, Ali et al

in Proceedings of the XXV Giornate Italiane della Costruzione in Acciaio (2015)

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See detailThe harmonic balance method for bifurcation analysis of nonlinear mechanical systems
Detroux, Thibaut ULg; Renson, Ludovic ULg; Masset, Luc ULg et al

in Proceedings of the International Modal Analysis Conference (IMAC) XXXIII (2015)

Because nowadays structural engineers are willing to use or at least understand nonlinearities instead of simply avoiding them, there is a need for numerical tools performing analysis of nonlinear large ... [more ▼]

Because nowadays structural engineers are willing to use or at least understand nonlinearities instead of simply avoiding them, there is a need for numerical tools performing analysis of nonlinear large-scale structures. Among these techniques, the harmonic balance (HB) method is certainly one of the most commonly used to study finite element models with reasonably complex nonlinearities. However, in its classical formulation the HB method is limited to the approximation of periodic solutions. For this reason, the present paper proposes to extend the method to the detection and tracking of codimension-1 bifurcations in the system parameters space. As an application, the frequency response of a spacecraft is studied, together with two nonlinear phenomena, namely quasiperiodic oscillations and detached resonance curves. This example illustrates how bifurcation tracking using the HB method can be employed as a promising design tool for detecting and eliminating such undesired behaviors. [less ▲]

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See detailThree-node zero-thickness hydro-mechanical interface finite element for geotechnical applications
Cerfontaine, Benjamin ULg; Dieudonné, Anne-Catherine ULg; Radu, Jean-Pol ULg et al

in Proceedings of coupled 2015 (2015)

The paper briefly presents the main features of a hydro-mechanical coupled finite element of interface. The mechanical problems takes into account the the detection of contact, the development of a ... [more ▼]

The paper briefly presents the main features of a hydro-mechanical coupled finite element of interface. The mechanical problems takes into account the the detection of contact, the development of a contact pressure, the shearing and the relative sliding between two solids. A three-node discretisation of hydraulic problem allows the representation of fluid flows across and in the plane of the interface. The method involves a drop of pressure between each side of the interface and the inner medium. The hydro-mechanical couplings come from 1) the definition of the total pressure acting on each side of the interface according to the Terzaghi’s principle; 2) the dependence of the permeability on the gap variation; 3) the variation of the fluid mass stored within the gap. [less ▲]

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See detailCoffee cooperatives promoting peacebuilding and socio-economic development of farmers in Huye District , Southern Rwanda
Bititi, Gisaro M-Ya; Lebailly, Philippe ULg; Mbonyinkebe, Déo

in Kovacevic, Dusan (Ed.) Book of Proceedings Sixth International Scientific Agricultural Symposium "AgroSym 2015" (2015)

Cooperative organisations play an important role in the peacebuilding efforts undertaken in the wake of the Rwanda genocide in1994. The genocide tore apart and destroyed large parts of the country’s socio ... [more ▼]

Cooperative organisations play an important role in the peacebuilding efforts undertaken in the wake of the Rwanda genocide in1994. The genocide tore apart and destroyed large parts of the country’s socio-economic and institutional foundations, its consequences are still evident. Coffee is the main source of income for approximatively 500.000 households. The paper aimed to analyze the impact of coffee cooperatives and the coffee washing stations in the peacebuilding socio-economic changes of coffee farmer’s members in Huye District, Southern Province of Rwanda. A research surveyed selected 70 small coffee farmers from 3 cooperatives to measure socio-economic development of coffee washing stations on the growers. Results reveal that cooperatives increase production and improve the socioeconomic households’ income (86.5%). Jobs are created for women and girls especially during the harvesting and the coffee processing (98.7%). When farmers are working together, a synergy is created among them, by disucussion, exchanging experiences, which avoide discrimination, conflict, division between antagonist ethnic groups Hutu and Tutsi (67.1%). Results reveal that coffee cooperatives promote a spirit of understanding each other and the tolerance between farmers (72.3%). Cooperatives provide loans to the members through the “rotating funds: Ibimina”. They also educate members through vocational trainings by enhancing and empowering farmers especially women and girls (97.1%). This is evidenced by the provision of adequate shelter, the observation of human rights, access to the medical insurance, school fees for children, undertaking entrepreneurial activities, unity and reconciliation between members, participating in the household’s incomes allocation. Cooperatives uses various strategies in peacebuilding such as working together to construct new schools and houses, land inheritance for women, clubs for peacebuilding and visiting each others (74.3%). [less ▲]

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See detailHydro-mechanical behavior of Boom clay host-rock in interaction with a deep excavated gallerys' lining
Salehnia, Fatemeh ULg; Li, Xiangling; Charlier, Robert ULg

in Alert workshop 2015-Booklet of abstracts (poster session) (2015)

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See detailAdvances in virtual process chain and connection with online monitoring methods for first time tight manufacturing of thermoset laminated composites
Brauner, Christian; Miene, Andrea; Bruyneel, Michaël ULg et al

in NAFEMS World Congress 2015 (2015)

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See detailStudy of water diffusivity during drying of mortar
Kahlerras, Loubna ULg; Courard, Luc ULg; Michel, Frédéric ULg et al

in Proceedings of the 5th European Drying Conference (EuroDrying'2015) (2015)

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See detailAssessing the effect of a catchment-scale restoration project in Wallonia (Belgium)
Peeters, Alexandre ULg; Verniers, Gisèle; De le Court, Bernard

in Angelopoulos, Natalie; Buijse, Tom; van Oorschot, Mijke (Eds.) et al Proceedings of the International Conference on River and Stream Restoration “Novel Approaches to Assess and Rehabilitate Modified Rivers”. FP7 REFORM deliverable 7.5. (2015)

In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse ... [more ▼]

In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014. Before undertaking sustainable rehabilitation measures, a multi-scale assessment of hydromorphological conditions (catchment, stream and site) was conducted. It was based on a variety of variables characterizing the river system and its geomorphic processes (e.g. sediment transport), along with human-induced disturbances (e.g. barriers to river continuity). The Bocq catchment has been subject to a large-scale restoration project through the removal or modification of 20 barriers (mainly old weirs), reconnecting the Bocq with the Meuse. In addition, 2.6 km of straightened courses were improved by restoring meanders or diversifying habitats through a wide range of rehabilitation techniques. The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring. We compared hydromorphological parameters and biological diversity of benthic invertebrates, fish and macrophytes. 2-3 years post-rehabilitation, hydromorphology was significantly improved. Depending on the rehabilitation measures, the restoration effects observed for invertebrates and fish differ. Weir removal and restored meanders have resulted in the most positive effects, while habitat diversification has led to more contrasted results, depending on the level of ambition. The geomorphological monitoring has focused on the effectiveness of spawning gravel rehabilitation and the effect of barriers on sediment transport. Topographic surveys and the use of pebble tracers have highlighted a natural bedload transport following a weir removal. [less ▲]

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See detailModeling and control of waste heat recovery Rankine based systems for heavy duty trucks
Grelet, Vincent; Dufour, Pascal; Nadri, Madiha et al

in Proceedings of the 9th International Symposium on Advanced Control of Chemical Processes (2015)

This paper presents a control oriented model development for waste heat recovery Rankine based control systems in heavy duty trucks. Waste heat recovery systems, such as Rankine cycle, are promising ... [more ▼]

This paper presents a control oriented model development for waste heat recovery Rankine based control systems in heavy duty trucks. Waste heat recovery systems, such as Rankine cycle, are promising solutions to improve the fuel efficiency of heavy duty engines. Due to the highly transient operating conditions, improving the control strategy of those systems is an important step to their integration into a vehicle. The system considered here is recovering heat from both EGR and exhaust in a serial arrangement and use a mixture of water and ethanol as working fluid. The paper focuses on a comparison of a classical PID controller which is the state of the art in the automotive industry and a nonlinear model based controller in a simulation environment. The nonlinear model based controller shows better performance than the PID one and ensures safe operation of the system. [less ▲]

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See detailOn the projective geometry of Kalman filter
Carli, Francesca Paola ULg; Sepulchre, Rodolphe ULg

in Proc. of 54th IEEE Conference on Decision and Control (CDC), 2015 (2015)

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See detailImpact of forage legumes on nutritive value and growth performance in pigs reared in traditional farming systems in tropical Africa
Kambashi Mutiaka, Bienvenu ULg; Kalala, Gaetan; Mafwila, Jacques et al

in Book of Abstracts (2015)

Forage legumes (FL) are used in tropical countries to feed pigs, either by reducing allowance of well-balanced diets and supplementing with FL or by incorporating FL in unbalanced fibre-rich diets. The ... [more ▼]

Forage legumes (FL) are used in tropical countries to feed pigs, either by reducing allowance of well-balanced diets and supplementing with FL or by incorporating FL in unbalanced fibre-rich diets. The impact of both strategies on animal and economical performances was studied in 2 growth experiments. In Exp. 1, 4 groups of 8 growing pigs (25.5 +- 4.2 kg) were fed under one of 4 dietary treatment: a well-balanced diet (CONTROL) ad libitum or 80% of the ad libitum level of CONTROL + ad libitum freshly cut foliage of one of 3 FL species (Vigna unguiculata, Stylosanthes guinanensis, or Psophocarpens scandens). Similarly, in Exp. 2, 4 groups of 6 pigs (22.6 +- 3.7 kg) were fed one of 4 experimental diets: the well-balanced diet (CONTROL), an unbalanced traditional diet rich in fibre and made of bran, brewers grain, and corn (TRAD) or 80% TRAD diet supplemented with 20% of one of 2 FL hays (V. unguiculata or S. guinanensis). Animals were regularly weighed and feed intake was monitored. After 90d, animals were slaughtered and carcass composition and economic traits were recorded to calculate production costs and economical value. In addition, nutritive value of the FL and the diets was assessed by means of an in vitro model of the pig digestive tract combining an enzymatic hydrolysis to a fermentation with a fecal inoculum. Results indicate that pigs fed diets with FL (Exp.1) and TRAD with and without FL (Exp.2) had reduced ADG, final live and carcass weights (P<0.05) compared to CONTROL pigs. Surprisingly , dry matter intake (DMI) was also reduced by 10% with those diets compared to CONTROL (P<0.001) in both experiments. In Exp. 1, FCR and carcass dressing were not affected by the 20% reduction in CONTROL diet and supplementation with fresh FL, while in Exp. 2 those parameters were negatively affected in TRAD with and without FL compared to CONTROL pigs. In vitro data showed that differences in nutritive values explained most differences in growth performances and carcass traits, but not the decrease in intake, since passage rate and voluntary intake are not taken into account in the in vitro model. Economical assessment showed that fresh foliage of FL could increase incomes, as long as their production costs remain marginal, but the incorporation of FL hays could not improve economical performances in pigs fed traditional unbalanced fibre-rich diets. [less ▲]

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See detailAnalytic Model for The Motion About An Oblate Planet in The Presence Atmospheric Drag
Martinusi, Vladimir ULg; Dell'Elce, Lamberto ULg; Kerschen, Gaëtan ULg

in Advances in The Astronautical Sciences (2015)

The paper introduces a new model for the motion about an oblate planet under the influence of the atmospheric drag. Both qualitative and quantitative insights are revealed, as well as closed-form ... [more ▼]

The paper introduces a new model for the motion about an oblate planet under the influence of the atmospheric drag. Both qualitative and quantitative insights are revealed, as well as closed-form equations of motion. The main tool consists in averaging the effects of both perturbations (oblateness and drag), and deriving the variational equations for the vectorial orbital elements. The model is singularity-free and may serve as an initial guess for control problems, as well as an analytic propagator. [less ▲]

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See detailStress-based topology optimization with fatigue failure constraints
Collet, Maxime ULg; Bruggi, Matteo; Bauduin, Simon ULg et al

in Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing (2015)

This paper shows how the design of a structure can evolve when considering a stressbased topology optimization along with fatigue failure constraints. More precisely, fatigue failure is added in a stress ... [more ▼]

This paper shows how the design of a structure can evolve when considering a stressbased topology optimization along with fatigue failure constraints. More precisely, fatigue failure is added in a stress-based topology optimization Matlab code by following the approach of the design of machine elements, i.e. based on S-N curves or fatigue criteria. The fatigue is introduced through weel-known criteria for high-cycle fatigue such as the Sines and Crossland criteria. The paper presents how these criteria can be formulated for a topology optimization problem. Numerical results for both criteria are successively compared and discussed. The character of fatigue failure in the optimization procedure is illustrated as well as some issues that have to be improved in future work. [less ▲]

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See detailLa fin du Paléolithique moyen dans le Nord de l’Europe : la question des origines du Lincombien-Ranisien-Jerzmanowicien
Flas, Damien ULg

in Depaepe, Pascal; Goval, Emilie; Koehler, Héloïse (Eds.) et al Les plaines du Nord-Ouest : carrefour de l’Europe au Paléolithique moyen ? (2015)

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See detailA modular approach dedicated to dam-break and dam-breaching modelling
Stilmant, Frédéric ULg; Dewals, Benjamin ULg; Erpicum, Sébastien ULg et al

in Advances in Hydroinformatics (2015)

The paper presents an integrated tool for dam-break hazard modelling. It is based on a two-dimensional, depth-averaged hydraulic model that uses a conservative and shock-capturing finite volume scheme on ... [more ▼]

The paper presents an integrated tool for dam-break hazard modelling. It is based on a two-dimensional, depth-averaged hydraulic model that uses a conservative and shock-capturing finite volume scheme on a Cartesian grid. The hydraulic model is designed so that different zones within the computation domain can be modelled with different spatial resolutions and/or different model enhancements (e.g. pressurised flows, sediment transport, etc.). The two-dimensional model can be coupled with lumped models that compute the water stage in reservoirs and the outflow discharge through hydraulic structures, in case of normal operating, failure of a valve or breaching processes. These features make hydraulic modelling versatile and computationally efficient. They enable the definition of different failure scenarios, which is of prominent importance given the uncertainty of such a phenomenon. If several hydraulic structures are involved, the procedure takes the behaviour of each structure into account. The sensitivity of the results with respect to the interactions between the flow and the terrain (roughness coefficient, collapse of buildings, breaching process) can be analysed. The results of the hydraulic model are handled thanks to a graphical user interface that provides one-, two- and three-dimensional views and animations of the unsteady flow-field and enables the understanding and verification of the results. Danger maps are generated based on the results of one or more ‘worst-case’ scenarios. In case of a complete risk analysis, the danger maps are combined with data on the exposure and vulnerability of elements at risk for the computation of the corresponding damage. [less ▲]

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See detailModel based control for waste heat recovery rankine cycle system in heavy duty trucks
Grelet, Vincent; Dufour, Pascal; Nadri, Madiha et al

in Proceedings of the 3rd ASME International Seminar on ORC Power Systems (ORC) (2015)

Driven by future emissions legislations and increase in fuel prices engine, gas heat recovering has recently attracted a lot of interest. In the past few years, a high number of studies have shown the ... [more ▼]

Driven by future emissions legislations and increase in fuel prices engine, gas heat recovering has recently attracted a lot of interest. In the past few years, a high number of studies have shown the interest of energy recovery Rankine based systems for heavy duty trucks engine compounding. Recent studies have brought a significant potential for such a system in a Heavy Duty (HD) vehicle, which can lead to a decrease in fuel consumption of about 5% [Wang et al. (2011)] and reduce engine emissions. But many challenges still need to be faced before the vehicle integration. This paper presents a control strategy development for waste heat recovery Rankine based systems in heavy duty trucks. Due to the highly transient operating conditions, improving the control strategy of those systems is an important step to their integration into a vehicle. It is shown here that moving to more advanced control strategies than classical PIDs lead to some gains in terms of performance. Due to the limited availability and high operational cost of test bench, the validation of such a controller is done on a representative and previously validated model. [less ▲]

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See detailThe Fe-Mn phosphate mineral assemblages from the La Viquita pegmatite, San Luis, Argentina.
Galliski, M; Roda-Robles, Encarnacion ULg; Hatert, Frédéric ULg et al

in . 7th International Symposium on Granitic Pegmatites- PEG 2015, Abstract book (2015)

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See detailLes différentes significations du mot "provision"
Bourgeois, Marc ULg

in Les provisions comptables et fiscales (2015)

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See detailLes traumatisés de Sedan (1870) et la Belgique
Bechet, Christophe ULg

in Cochet, François (Ed.) Expérience combattante –XIXe-XXIe siècles, IV : L’expérience traumatique (2015)

Au lendemain de la bataille de Sedan (1er septembre 1870), la Belgique accueillit un grand nombre de blessés français et prussiens. Le transfert des grands blessés se fit grâce à l'action de l'association ... [more ▼]

Au lendemain de la bataille de Sedan (1er septembre 1870), la Belgique accueillit un grand nombre de blessés français et prussiens. Le transfert des grands blessés se fit grâce à l'action de l'association belge de secours aux militaires blessés en temps de guerre (Croix Rouge de Belgique). L'accueil favorable des autorités belges répondait autant à des considérations humanitaires que politiques. Sur le plan technique, les graves blessures causées par les armes à feu, de plus en plus puissantes, posèrent de nouveaux défis aux chirurgiens belges. [less ▲]

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See detailAmulettes ou exercices scolaires : sur les difficultés de la catégorisation des papyrus chrétiens
de Haro Sanchez, Magali ULg; Carlig, Nathan ULg

in de Haro Sanchez, Magali (Ed.) Écrire la magie dans l’antiquité. Actes du colloque international (Liège, 13-15 octobre 2011) (2015)

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See detailHow to use ICT to help students to gain in confidence and efficiency in an algorithmic and computer programming course ?
Colaux, Catherine ULg; Soyeurt, Hélène ULg

in INTED2015 Proceedings (2015)

Algorithmic and computer programming in the bachelor’s degree is a course that demands a large involvement of students in performing non-standard exercises. This practical aspect is incompatible with ... [more ▼]

Algorithmic and computer programming in the bachelor’s degree is a course that demands a large involvement of students in performing non-standard exercises. This practical aspect is incompatible with classical ex cathedra course. It is the reason why we implement a blended learning approach much more responsive to students in a bachelor class of Bio Engineering at the Gembloux Agro Bio Tech Faculty (University of Liege, Belgium). This course alternates theoretical classes, take-home lessons with the help of online pedagogical resources and video and debriefing sessions where students have the possibility to benefit from teacher’ support. In doing so, the students are better prepared for the examination. They also gain in confidence and motivation. The teacher no longer simply transmits the knowledge but assists the students in their reflection process and their mastering of programming tools [less ▲]

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See detailUne étude micropédagogique des gestes professionnels et de leurs impacts sur l’activité d’apprentissage dans le contexte de l’enseignement universitaire
Fossion, Gilles ULg; Burlet, Géraldine ULg; Faulx, Daniel ULg

in Actes du 28ème Colloque de l'Association Internationale de Pédagogie Universitaire (2015)

Selon la loi de Pareto, 80 % des effets sont produits par 20 % des causes. Transféré au contexte universitaire, on dira que les petites différences de comportement, notamment langagier, entre enseignants ... [more ▼]

Selon la loi de Pareto, 80 % des effets sont produits par 20 % des causes. Transféré au contexte universitaire, on dira que les petites différences de comportement, notamment langagier, entre enseignants conduisent à des effets sur les étudiants qui peuvent être fortement diversifiés. C’est cette observation qui nous a encouragé à développer les études micropédagogiques , c’est-à-dire l’observation fine de l’activité des enseignants pour saisir ce qui la caractérise et la rend plus ou moins « efficace » (le terme étant évidemment relatif et à définir en fonction des contextes, des objectifs poursuivis et des apprenants). Le principe méthodologique de l’étude micropédagogique consiste donc à combiner (1) l’analyse fine de l’activité enseignante et (2) ses effets auprès des apprenants. Dans le cadre de cette communication, nous présentons l’intégration d’un dispositif de recherche et d’un dispositif d’apprentissage situés dans cette perspective d’approche micropédagogique. Durant plusieurs cours, deux caméras filment simultanément d’une part l’enseignant qui réalise un exposé et d’autre part le groupe d’étudiants. Lors de la séquence pédagogique suivante, les apprenants visionnent le double film (en split screen) et le commentent collectivement, en reliant les observations sur l’activité de l’enseignant et les effets que cela a eu sur leur dynamique d’apprentissage. Il en ressort que plusieurs actions du formateur ont fort impact sur l’apprentissage et la motivation, notamment : les modes de gestion du groupe, la formulation des questions, les modes de réactions de l’enseignant aux interventions des participants, les types d’exemples choisis, l’utilisation des analogies ou encore la projection dans le passé et dans le futur. Selon la manière de procéder de l’enseignant, ils contribueront plus ou moins à l’apprentissage et à la dynamique motivationnelle des étudiants. Par cette démarche de recherche, les apprenants produisent à la fois de la connaissance scientifique et développent leur propre apprentissage sur les contenus de l’étude micropédagogique. [less ▲]

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See detailLearning the Tactile Signatures of Prototypical Object Parts for Robust Part-based Grasping of Novel Objects
Hyttinen, Emil; Kragic, Danica; Detry, Renaud ULg

in IEEE International Conference on Robotics and Automation (2015)

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See detailPar(ad)is perdus. Nostalgies urbaines chez Georges Simenon et Léo Malet
Denis, Benoît ULg

in Denis, Benoît; Popovic, Pierre (Eds.) Une cité entre deux mondes. La ville dans les arts et la littérature en France entre 1958 et 1981 (2015)

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See detailLe droit de repentir dans la vente immobilière. Leçons du droit comparé
Kohl, Benoît ULg

in Cartuyvels, Benoît; de Ville de Goyet, Anne-Cécile; Denis, Ariane (Eds.) et al La vente immobilière, aujourd’hui et demain (2015)

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See detailLes contrats immobiliers. La promotion immobilière et la loi Breyne
Kohl, Benoît ULg

in Leleu, Yves-Henri (Ed.) Chroniques Notariales (2015)

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See detailAmbulatory system using wearable accelerometers for gait analysis in Parkinson’s disease
Boutaayamou, Mohamed ULg; Demonceau, Marie ULg; Schwartz, Cédric ULg et al

in Proceedings of the 14th Belgian Day on Biomedical Engineering (2015)

We describe a signal-processing algorithm for gait analysis in Parkinson’s disease (PD) using an ambulatory system with wearable accelerometers. This algorithm is versatile enough to detect, on a stride ... [more ▼]

We describe a signal-processing algorithm for gait analysis in Parkinson’s disease (PD) using an ambulatory system with wearable accelerometers. This algorithm is versatile enough to detect, on a stride-by-stride basis, refined gait parameters that quantify subtle gait disturbances in PD in a rater-independent way. [less ▲]

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See detailLa bonne nature du symbolique. Sur quelques équivoques de l'anthropologie française contemporaine
Delruelle, Edouard ULg

in Durand, Pascal (Ed.) Le discours « néo-réactionnaire » (2015)

Une certaine anthropologie française du « symbolique » prête depuis quelques années, sous prétexte de critique du néo-libéralisme, à quelques mésusages que l’on pourrait ranger à l’enseigne d’une nouvelle ... [more ▼]

Une certaine anthropologie française du « symbolique » prête depuis quelques années, sous prétexte de critique du néo-libéralisme, à quelques mésusages que l’on pourrait ranger à l’enseigne d’une nouvelle pensée réactionnaire, sinon d’une pensée « néo-réactionnaire ». La critique du néolibéralisme est évidemment chose indispensable, mais encore faut-il s’assurer des bases théoriques sur lesquelles elle est élaborée. [less ▲]

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See detailPressure and velocity on an ogee spillway crest operating at high head ratio: experimental measurements and instrumentation
Peltier, Yann ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Carvalho, Rita; Pagliara, Stefano (Eds.) 2nd International workshop on hydraulic structures: data validation (2015)

This paper aims at validating pressure and velocity measurements conducted in two physical scale models of an ogee spillway crest operating at heads largely greater than the design head. The design head ... [more ▼]

This paper aims at validating pressure and velocity measurements conducted in two physical scale models of an ogee spillway crest operating at heads largely greater than the design head. The design head of the second model is 50% smaller than the one of the first model. No piles effect or air entrance is considered in the study. The velocity field is measured by Large Scale Particle Image Velocimetry. The relative pressure along the spillway crest is measured using pressure sensors. Comparisons of measured velocities between both spillways indicate low scale effects, the scaled-profiles collapsing in most parts of the flow. By contrast, measurements of relative pressure along the spillway crest differ for large heads. A theoretical velocity profile based on potential flow theory and expressed in a curvilinear reference frame is then fitted to the velocity measurements, considered as reference, for extrapolating the velocity at the spillway crest. Comparing the extrapolated velocity at the spillway crest and the velocity expressed from the relative pressure finally emphasizes that bottom pressure amplitudes are overestimated for the large spillway, while an averaging effect might operate for the pressure measurements on the small spillway. [less ▲]

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See detailÉtude anatomoradiologique d’un crâne déformé d’Ancón (Pérou)
Ricciardetto, Antonio ULg; Boman, Françoise; Duchat, Florent et al

in Charlier, Philippe (Ed.) Actes du Ve Colloque international de Pathographie (2015)

Matériels et méthodes : l’étude porte sur un crâne déformé provenant d’Ancón au Pérou, inventorié au Muséum National d’Histoire Naturelle (MNHN) de Paris en 1889. L’étude est géographique, historique ... [more ▼]

Matériels et méthodes : l’étude porte sur un crâne déformé provenant d’Ancón au Pérou, inventorié au Muséum National d’Histoire Naturelle (MNHN) de Paris en 1889. L’étude est géographique, historique, macroscopique et tomodensitométrique. Résultats : situé sur la côte à 40 km au nord de Lima, la capitale du Pérou, le site d’Ancón est un site archéologique de la période lithique, et un lieu de sépulture depuis l’époque Chavín (1250 à 250 av. J.-Chr.). Dès l’époque Chavín, les peuples du Pérou ancien construisaient des centres cérémoniels dirigés par une élite théocratique, et déformaient le crâne des enfants dès les premiers jours de la vie, à l’aide de moyens de pression variés. La déformation du crâne d’Ancón est une déformation antéro-postérieure oblique, brachycéphale, bilobée et asymétrique, sans trépanation ni déformation dentaire associée. C’est une variante bilobée du type Huaura de déformation crânienne, qui est associé aux régions de Chancay-Ancón et Lima. L’étude tomodensitométrique des variations d’épaisseur de la voûte, avec amincissement en regard des zones de pression, a montré que la déformation était intentionnelle, et caractérisée par une pression fronto-pariéto-temporale bilatérale surtout antérieure et dégressive d’avant en arrière, associée à une pression frontale, occipitale, et sagittale médiane. En l’absence de contexte et de datation, l’ancienneté du crâne étudié ne peut pas être précisée au long d’une période de presque trois millénaires, jusqu’à la domination Inca et l’arrivée des Espagnols (1532). Le crâne pourrait appartenir à l’une ou l’autre des cultures successives du site d’Ancón : Chavín, Baňos de Boza o Miramar, Lima, Wari, et Chancay (1200 à 1470), dont les céramiques représentent la déformation bilobée. Le crâne est probablement celui d’une femme âgée de plus de 45 ans à son décès, de statut social élevé, faisant partie de l’élite magico-religieuse, politique et économique dirigeante. L’étude de l’endocrâne a permis d’observer la déformation des veines superficielles et des lobes du cerveau. Il existe des signes de parodonpathie chronique à un stade avancé. Un abcès d’origine dentaire pourrait avoir été la cause du décès. Conclusions et perspectives : en ce qui concerne la pratique des déformations crâniennes, la région d’Ancón-Chancay et de Lima paraît être remarquable à trois égards : par le grand nombre de crânes déformés, par le grand nombre de crânes bilobés, et par la proportion importante de femmes, dont on peut supposer qu’elles étaient nées de familles nobles, et destinées dès l’enfance à faire partie de l’élite théocratique. La reconstitution 3D de l’épaisseur de la voûte crânienne a permis pour la première fois à notre connaissance de caractériser ce type de déformation, et pourrait permettre de reconstituer l’appareil déformateur. Seule la reprise des exhumations programmées sur le site d’Ancón, dans le cadre d’un projet prospectif pluridisciplinaire, pourrait permettre de mieux préciser la proportion d’individus à crâne déformé, la proportion des crânes bilobés, et le sex ratio, dans chaque contexte historique et socio-culturel de ce type de déformation crânienne intentionnelle ; et, peut-être, de retrouver in situ l’appareil déformateur correspondant. [less ▲]

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See detailNumerical analysis of hydrocarbon pool fire tests
Tondini, Nicola; Hanus, François; Nadjai, Ali et al

in Proceeding of the 1st International Conference on Structural Safety under Fire & Blast (2015)

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See detailHypoxic-Ischemic Encephalopathy and Premature Babies Brain Damage: Impact of Estetrol
Tskitishvili, Ekaterine ULg; Nisolle, Michelle ULg; Noël, Agnès ULg et al

in The 11th Congress of the European Society of Gynecology, Prague 21-24 October, 2015 (2015)

Neonatal hypoxic-ischemic brain injury remains a main problem of perinatal medicine. About 20% of affected newborns die in the postnatal period, and an additional 25% will sustain childhood disabilities ... [more ▼]

Neonatal hypoxic-ischemic brain injury remains a main problem of perinatal medicine. About 20% of affected newborns die in the postnatal period, and an additional 25% will sustain childhood disabilities mostly in the form of motor and cognitive delays. The nature of the deficits is dependent on the gestational age and severity of the insult, though it is s seldom reported in preterm infants. No medical treatment provides important neuroprotection against HIE. Studies in animal models of HIE may provide important information for the development of treatment for this pathological condition. Estetrol (E4) is a recently described estrogen with four hydroxyl-groups that is synthesized exclusively during pregnancy by the human fetal liver. In this study, we defined the antioxidative effect of E4 in primary hippocampal cell cultures taken from newborn rat pups (in vitro) and evaluated its neuroprotective and therapeutic potency in neonatal HIE model of the immature newborn rat (in vivo). Lactate Dehydrogenase (LDH) and cell survival (MTS) assays were performed on primary neuronal cell cultures. Rat pups body temperatures were examined along with their body and brain weights. Brains were studied at the level of the hippocampus and cortex. Intact cell counting and expressions of markers for neuronal cell viability (microtubule-associated protein-2 (MAP-2)), neurogenesis (doublecortin (DCX)) and angiogenesis (vascular-endothelial growth factor (VEGF)) were evaluated by histo- and immunohistochemistry. The serum levels of two markers of brain damage (S100B and glial fibrillary acidic protein (GFAP)) were measured by ELISA. Our results demonstrate that E4 has a significant neuroprotective and therapeutic dose-dependent effects. Estetrol has powerful antioxidative and cell survival effects in vitro. It decreases the early gray matter loss and promotes neuro- and angiogenesis in vivo. Estetrol treatment has no effects on body weight, brain weight or body temperature. Taken together, Estetrol might become an important safe and physiological substance to treat neonatal HIE. [less ▲]

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See detailBLOGUES DES ENSEIGNANTS ET IDENTITÉS NUMÉRIQUES
Vintila, Elena-Georgiana ULg

in Ţenescu, Alina; Florea, Aurelia (Eds.) IDENTITATE SI VARIAŢIE DISCURSIVĂ (2015)

Un enseignant est un être social, sa pratique dans la classe n’est qu’une composante de la complexité qui le caractérise. Dehors de la classe, ou comme un prolongement de celle-ci, les professeurs se ... [more ▼]

Un enseignant est un être social, sa pratique dans la classe n’est qu’une composante de la complexité qui le caractérise. Dehors de la classe, ou comme un prolongement de celle-ci, les professeurs se mettent à animer des blogues. Blogues des professeurs de FLE, blogues professionnels. Linguistiquement, les blogues des professeurs se classent du côté de l’ « identité » et de l’ « image de soi ». [less ▲]

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See detailDesign of a convective labscale dryer working either with superheated steam or air
Fraikin, Laurent ULg; Salmon, Thierry ULg; Léonard, Angélique ULg

in Proceedings of the 5th European Drying Conference (EuroDrying'2015) (2015)

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See detailToward the quantification of the cement paste content of fine recycled concrete aggregates by salicylic acid dissolution corrected by a theoretical approach
Zhao, Zengfeng ULg; Remond, Sébastien; Damidot, Denis et al

in Proceedings of the 14th International Congress on the Chemistry of Cement (2015)

Recycled concrete aggregates (RCA) are mainly composed of an intimate mix between natural aggregates and cement paste and the complete separation between these two phases is difficult. Cement paste ... [more ▼]

Recycled concrete aggregates (RCA) are mainly composed of an intimate mix between natural aggregates and cement paste and the complete separation between these two phases is difficult. Cement paste generally presents a much larger porosity than natural aggregates, the content and the physicochemical properties of cement paste therefore have a large influence on the properties of RCA. Any method seems to be adapted to the characterization of cement paste content (CPC) in fine recycled concrete aggregates (FRCA) especially for RCA containing calcareous aggregates. A simple method based on the dissolution of the cement paste in a solution of salicylic acid in methanol was specifically developed to estimate the cement paste content of RCA. Results showed that salicylic acid dissolution method can dissolve most phases of hardened Portland cement paste such as Portlandite, ettringite and C-S-H without dissolving siliceous and calcareous aggregates. The experimental results for two neat Portland cement pastes (white cement paste and grey cement paste) showed that the soluble fraction in salicylic acid (SFSA) was equal to the cement paste content for white cement and slightly lower for the grey cement. The SFSA was measured for different types of RCA. The RCA manufactured in the laboratory whose composition is fully known and three RCA manufactured from industrial crushing platforms have been characterized. Whatever RCA used in our study, SFSA varies almost linearly with the average particle size. A linear relationship was obtained between the water absorption coefficient and SFSA. This relationship allowed us to accurately determine the water absorption coefficient of the smallest granular class 0/0.63mm. [less ▲]

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See detailModeling accessibility to schools: the case of Wallonia, Belgium
Maldague, Hubert ULg; Teller, Jacques ULg; Cools, Mario ULg

in Rasouli, Soora; Timmermans, Harry (Eds.) Current Issues in Transportation Research, Proceedings of the BIVEC/GIBET Transport Research Days 2015 (2015)

Several recent studies about school mobility highlighted the significant decline of active modes and public transport's modal shares. Associated with this decline, it can be observed that distances ... [more ▼]

Several recent studies about school mobility highlighted the significant decline of active modes and public transport's modal shares. Associated with this decline, it can be observed that distances between home and schools have been rising the last two decades. To develop appropriate policies alleviating the negative effects of the increased motorization in the school commute, a diagnosis of probable causes is required. To perform this diagnosis, we develop an accessibility-based methodology using data stemming from the Belgian national household travel (BELDAM) survey. Gamma-functions are calibrated to describe the use of different transport modes according to their relative travel times. Data from OpenStreetMap are used to describe the Walloon roads network in terms of the maximum allowed vehicle speed and length for each link. Properties of the network are modified to match with other transport modes. Maps of accessibility to schools are computed for each transport mode by merging the value of access time represented by isochrones and the calibrated gamma-functions. [less ▲]

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See detailGeophysical investigation of the Hockai Fault Zone, Eastern Belgium
Havenith, Hans-Balder ULg; Nguyen, Frédéric ULg; Halleux, Lucien ULg et al

in EGU General Assembly Conference Abstracts (2015)

In the frame of a regional project evaluating the geothermal potential of the Wallonian Region of Belgium, the Hockai Fault Zone has been identified as one of the most interesting targets. It is a ... [more ▼]

In the frame of a regional project evaluating the geothermal potential of the Wallonian Region of Belgium, the Hockai Fault Zone has been identified as one of the most interesting targets. It is a seismically active fault zone that hosted the largest historical earthquake in Northwestern Europe, the M6-6.5 Verviers event in 1692 as well as a swarm of small earthquakes that was recorded in 1989-90. On the surface, the presence of the fault zones is marked by a series of geomorphic features, such as several landslides near the borders in the northern part, repeated NW-SE oriented scarps all along the Eastern border (over a distance of 40 km), river diversions and captures with formation of paleo-valleys.... [less ▲]

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See detailImpact of value chain governance on the development of small scale shrimp farmers in Vietnam
Ho, Thi Minh Hop; Burny, Philippe ULg

in Petropoulos, D.; Kyriazopoulos, G. (Eds.) 1st International Conference of Development and Economy (ICODECON) : The advantages and disadvantages of Economic Crises : Book of abstracts (2015)

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See detailLes traductions de récits de voyage et leurs arrière-plans politiques
Vandersmissen, Jan ULg

in Coltelloni-Tranoy, Michèle (Ed.) La traduction, sa nécessité, ses ambiguïtés et des pièges (2015)

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See detailDuality of migrant lives: Gendered migration and agricultural production in Red River Delta region, Vietnam
Nguyen Thi, Dien; Nguyen Thi Minh Khué, ULg; Ngo Trung, Thanh et al

in Académie de Recherche et d'Enseignement Supérieur (ARES) (Ed.) ARES "Gender, migration and rural development" (2015)

This research analyzes the gender dimensions of labor migration and agricultural production among farm households in Red River Delta region of Vietnam. Through surveying 215 households in Bac Ninh ... [more ▼]

This research analyzes the gender dimensions of labor migration and agricultural production among farm households in Red River Delta region of Vietnam. Through surveying 215 households in Bac Ninh province, the paper explores impacts of female and male migration on agricultural production and its implications on rural development. The results show that in comparison to male migration household, the female one tends to focus on agricultural production by taking the opportunities to rent more land (26.3%) and effective use their own allocated land for agricultural production (97.4%). The overall impacts of migration on agricultural production are the aging of farm labor force (49.6 year old in average) and higher female participation in agricultural production. The findings suggest that female migrants have a greater contribution in agriculture production both in term of working time and agricultural capital investment while male migrants enhance household income by accumulating capital outside agriculture. Through the gender lens, this research emphasizes the duality in the nature of migrant lives and the implications of rural labor migration on the fixed categories. [less ▲]

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See detailLes portails romans de la cathédrale de Tournai. Contextualisation et restauration. Conclusions.
Duperroy, Francoise ULg

in Duperroy, Francoise; Desmet, Yves (Eds.) Les portails romans de la cathédrale Notre-Dame de Tournai. Contextualisation et restauration. (2015)

The Mantile door and the Capitol dorr of the Tournai Cathedral, a monument listed as a Word Heritage Site, are among the most intersting of Belgium. Their trilobal shape seems relatively exceptional and ... [more ▼]

The Mantile door and the Capitol dorr of the Tournai Cathedral, a monument listed as a Word Heritage Site, are among the most intersting of Belgium. Their trilobal shape seems relatively exceptional and gives them teheir character. The sculptures on these portals from the 12th century have not revealed all their secrets, particularly with regard to their place in the global iconographic programme of the Cathedral. A preliminary study initiated in 2012 to better undestand their structure is part of the vast project on conservation of the Cathedral oranized an international meeting with the scientific collaboration of the IRPA. This Conference was to be an opportunity to update and deepen our knowledge of church portals in their widest aspects - technical, typological, stylistic, iconographic - both in terms of architecture and sculpture. Comparisons with contemporary portals, in France in particular, was alson ath the heart of the discussions. [less ▲]

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See detailVirtualizing the hose design process
Andry, Philippe; Coloos, Jérôme; Bruyneel, Michaël ULg

in NAFEMS World Congress (2015)

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See detailStructuring the lexicon
Polis, Stéphane ULg; Winand, Jean ULg

in Lazaridis, N.; Kousoulis, P. (Eds.) Proceedings of the 10th International Congress of Egyptologists. University of the aegean, rhodes 22-29 May 2008 (2015)

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See detailCharles de Méan, trait d'union entre Rome et le Code civil?
Lagasse, Benoît ULg

in De ruysscher, Dave; Cappelle, Kaat; Colette, Maarten (Eds.) et al Rechtsgeschiedenis op nieuwe wegen (2015)

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