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See detailSottsass, Ettore
Prina, Daniela ULg

in Atkinson, Harriett; Edwards, Clive; Kettley, Sarah (Eds.) et al Encyclopedia of Design (in press)

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See detailPonti, Gio
Prina, Daniela ULg

in Atkinson, Harriet; Edwards, Clive; Kettley, Sarah (Eds.) et al Encyclopedia of Design (in press)

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See detailDeganello, Paolo
Prina, Daniela ULg

in Atkinson, Harriet; Edwards, Clive; Kettley, Sarah (Eds.) et al Encyclopedia of Design (in press)

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See detailNizzoli, Marcello
Prina, Daniela ULg

in Atkinson, Harriet; Edwards, Clive; Kettley, Sarah (Eds.) et al Encyclopedia of Design (in press)

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See detailPesce, Gaetano
Prina, Daniela ULg

in Atkinson, Harriet; Edwards, Clive; Kettley, Sarah (Eds.) et al Encyclopedia of Design (in press)

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See detailA Spatiotemporal Analysis of Membership: Formalizing the Space-Time Elements of Connection for Groups
Hallot, Pierre ULg; Stewart, Kathleen

in Proceedings of the AAG Annual Meeting (in press)

This research aims to formalize the spatiotemporal relationships of membership between individuals and the groups to which they belong. Specifically, we analyze how the membership to a community evolves ... [more ▼]

This research aims to formalize the spatiotemporal relationships of membership between individuals and the groups to which they belong. Specifically, we analyze how the membership to a community evolves over time considering past, present and future connections. The framework developed for this research is presented using an ontological approach. We demonstrate a specific domain ontology application for spatiotemporal membership using BFO2, an updated version of the Basic Formal Ontology. Key to this work is the representation of membership, modeled through different kinds of mereological relations possible with a group, for example, pre-member, active member, and alumni that capture how membership evolves and changes over time. The semantic web rule language (SWRL) is used to express the different spatiotemporal events that relate to membership and their consequences on membership such as subscription, graduation and reunion events. Mobility events are also included in the model. SWRL supports reasoning using the ontology and studying the evolution of membership between people and their various groups. We use the environment of a university community as an exemplar to develop and test the formalizations. However, the ideas are generalizable to a wide range of spatiotemporal domains, for example, these ideas hold for citizenship modeling or for consumers shopping at certain retail chains. The study of the evolution of membership connections between these entities and groups lends important insights for many different kinds of event planning. [less ▲]

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See detailMultiscale variability of amphipod assemblages in Posidonia oceanica meadows
Sturaro, Nicolas ULg; Lepoint, Gilles ULg; Vermeulen, Simon et al

in Journal of Sea Research (in press)

The study of spatial patterns is of ecological importance in order to understand the causes of the distribution and abundance of organisms, and it also provides valuable basis for management and ... [more ▼]

The study of spatial patterns is of ecological importance in order to understand the causes of the distribution and abundance of organisms, and it also provides valuable basis for management and conservation. Amphipod crustaceans are key organisms in seagrass ecosystems. However, little attention has been paid to the spatial scales at which amphipod assemblages may vary. We examined variability patterns of amphipod populations inhabiting Posidonia oceanica meadows, over spatial scales spanning four orders of magnitude (1 to 1000 metres) and for two consecutive years. This study reports the scales that contributed most to spatial variation of amphipod assemblages and explores the potential processes of the observed patterns, with particular emphasis on habitat features. The number of species, the diversity and the density of some species, exhibited high variation across years. Most species showed the highest spatial variation in density and biomass at small scales (~1 and 10 m). Based on density data, the structure of amphipod assemblages did not differ at any scales investigated. The patchiness that occurred at small scales may have been only weakly related to habitat features. Instead, we postulated that behavioural processes of amphipods were likely good explanatory factors. Although, the small scale spatial variability can be an important feature of amphipod assemblages in P. oceanica meadows, many patterns probably remained undetected as they may occur at scales smaller than those investigated. [less ▲]

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See detailGreek and Latin in the Roman World (100 to 700 AD)
Rochette, Bruno ULg

in Cambridge History of Later Latin Literature (in press)

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See detail(Re)productive Traditions in Ancient Egypt
Gillen, Todd Jonathan ULg

Book published by Presses Universitaires de Liège (in press)

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See detailNarrating tradition: the emergence of the monumental Triumph Scene at Thebes
Gillen, Todd Jonathan ULg

in Gillen, Todd Jonathan (Ed.) (Re)productive Traditions in Ancient Egypt (in press)

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See detailIntroduction: (Re)productive Traditions, Cultural Transmission and Egyptology
Gillen, Todd Jonathan ULg

in Gillen, Todd Jonathan (Ed.) (Re)productive Traditions in Ancient Egypt (in press)

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See detailPhysical controls on the storage of methane in landfast sea ice
Zhou, Jiayun ULg; Tison, J.-L.; Carnat, G. et al

in The Cryosphere (in press)

We report on methane (CH4) dynamics in landfast sea ice, brine and under-ice seawater at Barrow in 2009. The CH4 concentrations in under-ice water ranged between 25.9 and 116.4 nmol L-1sw, indicating a ... [more ▼]

We report on methane (CH4) dynamics in landfast sea ice, brine and under-ice seawater at Barrow in 2009. The CH4 concentrations in under-ice water ranged between 25.9 and 116.4 nmol L-1sw, indicating a supersaturation of 700 to 3100 % relative to the atmosphere. In comparison, the CH4 concentrations in sea ice, ranged between 3.4 and 17.2 nmol L-1ice, and the deduced CH4 concentrations in brine, between 13.2 and 677.7 nmol L-1brine. We investigated on the processes explaining the difference in CH4 concentrations between sea ice, brine and the under-ice water, and suggest that biological controls on the storage of CH4 in ice was minor in comparison to the physical controls. Two physical processes regulated the storage of CH4 in our landfast ice samples: bubble formation within the ice and sea ice permeability. Gas bubble formation from solubility changes had favoured the accumulation of CH4 in the ice at the beginning of ice growth. CH4 retention in sea ice was then twice as efficient as that of salt; this also explains the overall higher CH4 concentrations in brine than in the under-ice water. As sea ice thickened, gas bubble formation became less efficient, CH4 was then mainly trapped in the dissolved state. The increase of sea ice permeability during ice melt marked the end of CH4 storage. [less ▲]

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See detailUse of camera traps for wildlife studies: a review
Trolliet, Franck ULg; Vermeulen, Cédric ULg; Huynen, Marie-Claude ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (in press)

As human threats continue to impact natural habitats, there is an increasing need to regularly monitor the trends in large vertebrate populations. Conservation efforts must be directed appropriately, but ... [more ▼]

As human threats continue to impact natural habitats, there is an increasing need to regularly monitor the trends in large vertebrate populations. Conservation efforts must be directed appropriately, but field work necessary for data collection is often limited by time and availability of people. Camera traps are used as an efficient method to insure permanent sampling and to work in difficult to access areas. In the present study, we illustrate the way the use of camera traps developed: firstly with the need to monitor tiger (Panthera tigris (Linnaeus 1758)) populations and later as an instrument serving a diverse field of studies, such as animal behaviour and fauna-flora interaction. By looking at the material and technical aspects of various models of camera trap for implementation in different field studies in animal ecology, we highlight the need to choose appropriate camera trap models for the target species and to set up solid sampling protocols in order to successfully achieve study objectives. [less ▲]

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See detailLe "Gate fever" : cristallisation et fossilisation de l’univers carcéral
Englebert, Jérôme ULg

in Sami-Ali; Cady, Sylvie (Eds.) Temporalité et psychosomatique (in press)

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See detailPlace de l’agriculture itinérante familiale dans la foresterie communautaire au Gabon
Meunier, Quentin; Boldrini, Sylvie; Moumbogou, Carl et al

in Bois et Forêts des Tropiques (in press)

L’agriculture itinérante reste un système de production partagé par une grande majorité de groupes ethnolinguistiques, et appelé à se maintenir au Gabon. Elle s’exprime généralement dans un rayon de cinq ... [more ▼]

L’agriculture itinérante reste un système de production partagé par une grande majorité de groupes ethnolinguistiques, et appelé à se maintenir au Gabon. Elle s’exprime généralement dans un rayon de cinq kilomètres autour de l’unité de résidence. Au Gabon, cette zone est précisément celle destinée à accueillir depuis fin 2013 les premières forêts communautaires. Les préceptes de durabilité qui sous-tendent la notion de forêt communautaire impliquent le maintien d’un couvert forestier et pourraient entrer en contradiction avec la pratique de cette agriculture itinérante. Celle-ci prélève en effet, à chaque saison, un volume de bois soustrait au potentiel du massif concerné. Les plans simples de gestion des forêts communautaires prévoient une série agricole pour ne pas mettre en concurrence deux activités sur un même espace. Cela permet également de reconnaître la place socio-économique importante de l’agriculture en milieu rural. L’agroforesterie est une des clés pour articuler l’agriculture familiale et l’exploitation de la forêt communautaire. Conserver sur pied des arbres d’intérêts économique, social ou environnemental épargne d’une part de pénibles travaux d’abattage et, d’autre part, limite quantitativement l’impact de la coupe et du brûlis qui n’est plus systématique. L’introduction d’essences utiles, rares, protégées ou encore de bois d’œuvre permet également d’élever la valeur économique et patrimoniale des parcelles agricoles tout en répondant aux exigences en matière de conservation et de durabilité du plan simple de gestion de la forêt communautaire. Par ce biais, l’agriculture familiale coutumière est pérennisée et sécurisée dans l’enceinte d’une portion de forêt légalement reconnue tandis que les techniques culturales y sont optimisées. [less ▲]

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See detailMicrostructure and Mechanical Properties of a Mixed Si-Al TRIP-Assisted Steel Subjected to Continuous Galvanizing Heat Treatments
Mertens, Anne ULg; Bellhouse, Erika M.; McDermid, Joseph R.

in Materials Science & Engineering : A (in press)

Heat treatments with an isothermal bainitic transformation temperature of 465°C compatible with the continuous galvanizing process were performed on a 0.2C-1.5Mn-1.0Si-0.5Al (wt%) TRIP-assisted steel. The ... [more ▼]

Heat treatments with an isothermal bainitic transformation temperature of 465°C compatible with the continuous galvanizing process were performed on a 0.2C-1.5Mn-1.0Si-0.5Al (wt%) TRIP-assisted steel. The effect of intercritical annealing temperature and isothermal bainitic transformation (IBT) time at 465C on mechanical properties and microstructure were determined. The best combination of strength and ductility was obtained for the lower intercritical annealing temperature of 750°C for an isothermal bainitic transformation time of 90 s at 465°C. However, after intercritical annealing at a higher temperature of 797°C, optimum mechanical properties were obtained for a shorter isothermal bainitic transformation time of 60 s at 465°C, likely due to the lower C content of the intercritical austenite bringing about faster transformation kinetics. It was concluded that varying the intercritical temperature and IBT time can play an important role in the development of a suitable process window to obtain the desired mechanical properties in low alloy TRIP-assisted steels given the constraints associated with the continuous galvanizing process. [less ▲]

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See detailJamaica Kincaid's A Small Place
Munos, Delphine ULg

in Helen Goethals (Ed.) A Companion to Commonwealth Studies: Cultural Relations since 1884 (in press)

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See detailPrediction of SOx and NOx Emissions from a Medium Size Biomass Boiler Biomass and Bioenergy
Sartor, Kevin ULg; Restivo, Yannick ULg; Ngendakumana, Philippe ULg et al

in Biomass and Bioenergy (in press)

While small and medium size biomass combined heat and power (CHP) plants (i.e., up to 5 MW of electrical rated power) represent an attractive option to exploit locally available biomass resources at low ... [more ▼]

While small and medium size biomass combined heat and power (CHP) plants (i.e., up to 5 MW of electrical rated power) represent an attractive option to exploit locally available biomass resources at low cost, the corresponding investment per unit of rated power significantly rises when the installed power decreases. In these cases, secondary pollutant emissions control measures are most of the time not economically viable and primary emissions control must be used alone to avoid the formation of undesired compounds such as $NO_x$ and $SO_x$. Primary control measures require the careful optimization of fuel quality and combustion process. For plant operators, being able to accommodate biomass quality changes in order to minimize the fuel cost can be of great importance in order to guarantee the profitability of the plant. This contribution is dedicated to the development of a zero-dimensional (input-output) combustion simulation model able to predict the pollutants emissions resulting from complete and incomplete combustion with respect to varying combustion operation (ambient temperature, humidity, fumes recirculation,..). This tool is intended to be integrated in a global simulation model of the CHP plant and the attached district heating network installed on the University campus in Liège. Doing so, the plant operation can be optimized with respect to economic as well as environmental and energetic aspects (3E approach) thus ensuring the sustainability of the approach. [less ▲]

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