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See detailSocial Life Cycle Assessment in Bio-Based Industries: Identifying Main Indicators and Impacts
Rafiaani, P.; Van Passel, S.; Lebailly, Philippe ULg et al

in Ban, Marko et al. (Ed.) 11th Conference on Sustainable Development of Energy, Water and Environment Systems : book of abstracts (2016)

Assessing social impacts of various products, services and human activities has achieved an increasing interest worldwide. The nature of sustainability of biobased industries from a social point of view ... [more ▼]

Assessing social impacts of various products, services and human activities has achieved an increasing interest worldwide. The nature of sustainability of biobased industries from a social point of view is how and to what extent they are perceived by society, and how various societies take advantages from such activities. However, an important issue is that social factors are not usually easy to be quantitatively analyzed and although the social impacts might be very remarkable, especially at the local scale, they have been not possible to be investigated in the majority of impact evaluations in the past. Despite the existence of many different methodologies towards Social Life Cycle Assessment (SLCA) to address social impacts of various businesses and industries, most of them impartially address social performances of an industry. The aim of this paper is to highlight the main criteria that need to be taken into account in SLCA approaches for identifying the social indicators and impacts of biobased industries that is a timely topic worldwide toward climate change mitigation goals. Accordingly, considering the general approach of SLCA and particularly its inventory analysis phase for impact categories and indicator determinations, the paper provides an overview of the existing guidelines and frameworks for identifying social indicators and impact categories associated with bio-industries. In conclusion, main impact categories and indicators formulated in the existing frameworks applied to biobased industries are demonstrated as a basic set of applicable elements of social dimensions in evaluating bio-industries’ sustainability when conducting SLCAs. The state of the art for this study mainly includes leading journal articles, international reports and conference papers up to and including 2016 on SLCA in biobased industries. According to the reviewed frameworks in this study, quantitative, midpoint and sitespecific data are the main elements taken into account when collecting the data for biobased product social impact assessment. This study also reveals that although SLCA is in its early steps of development and despite in numerous cases, conducting a comprehensive SLCA is not yet feasible, it has been considered to have substantially promising methodological attributes that can help policymakers and other stakeholders to quantify and assess sustainability of bio-industries from the social perspective. Recommendations for further research work concerning SLCA in bio-industries are also presented. [less ▲]

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See detail"Les Mages hellénisés". Portrait illusoire d'une sagesse barbare.
Swennen, Philippe ULg

in Aufrère, Sydney (Ed.) Sagesses barbares: Echanges et réappropriation dans l'espace culturel gréco-romain (2016)

Dans "Les Mages hellénisés", Cumont et Bidez ont tenté un compromis entre l'état de l'art contemporain de la rédaction de leur ouvrage et le contenu des sources classiques qu'ils ont collectées. L'examen ... [more ▼]

Dans "Les Mages hellénisés", Cumont et Bidez ont tenté un compromis entre l'état de l'art contemporain de la rédaction de leur ouvrage et le contenu des sources classiques qu'ils ont collectées. L'examen de ces dernières permet pourtant de douter que les premiers témoins grecs du monde achéménide aient cru en l'historicité récente de Zoroastre. [less ▲]

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See detailTowards an “integrated conservation” : the contribution of R.M. Lemaire and Piero Gazzola during the first decade of ICOMOS (1965-1975)
Houbart, Claudine ULg

in Szmygin, Bogusław (Ed.) Heritage in Transformation. Cultural Heritage Protection in XXI century. Problems, challenges, predictions (2016)

Respectively elected first President and first Secretary General during the first general assembly of ICOMOS in Cracow in 1965, Piero Gazzola and Raymond M. Lemaire have deeply contributed to the success ... [more ▼]

Respectively elected first President and first Secretary General during the first general assembly of ICOMOS in Cracow in 1965, Piero Gazzola and Raymond M. Lemaire have deeply contributed to the success of the newly born organisation. During the first years, they didn’t only provoke the creation of numerous national committees around the world, but they also positioned ICOMOS as a major actor of the international conservation scene, through the organisation of conferences and an active participation in the debates initiated by Unesco and the Council of Europe, for which ICOMOS acted as a consultant. The study of Raymond M. Lemaire’s archive, kept at the KU Leuven in Belgium, clearly shows that one of the major concerns of both Lemaire and Gazzola, who had been, in 1964, amongst the main authors of the Venice Charter, was to broaden the scope of the document in order to address the issue of pre-industrial city centres, threatened by late reconstruction or development projects mostly promoting functionalist approaches. Depending on the time available, this presentation will address one or various aspects of Lemaire’s and Gazzola’s contribution to the emergence of integrated conservation, consecrated by the European Charter and the Amsterdam Declaration of 1975, that is: the new ideas (social value of heritage for example) developed during the expert meetings organised by the Council of Europe in 1965-1968, where they both represented ICOMOS. These ideas are synthesised in the report “Saving the face of Europe” in 1973, the relation between these theoretical contributions and Lemaire and Gazzola’s contemporary field experience, the role of Eastern Europe experiences (D. Libal in Prague and M. Horler in Budapest) in the development of an appropriate methodology to address urban issues, the differences between the concept of “integral planning” proposed by Lemaire in 1973 and the “integrated conservation” that was promoted by the 1975 Council of Europe charters, an epilogue could mention the revision projects of the Venice Charter between 1975 and 1981. Based on my PhD about R.M. Lemaire, recently presented at the KU Leuven (Belgium), this presentation aims at clarifying and illustrating the shift from monument restoration towards city “reanimation” or “rehabilitation” during the late sixties and seventies, as well as paying tribute to the action of two of the most important figures of the beginnings of ICOMOS. [less ▲]

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See detailConservation of contemporary art: from concepts to practice, Cloaca by Wim Delvoye
Verbeeck, Muriel ULg; Broers, Nico

in Hermens, Erma; Robertson, Frances (Eds.) Authenticity in transition (2016)

This paper looks at the ambiguities of language and concepts when considering the restoration of contemporary art.

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See detailLa lettre d’art dans l’œuvre de Jean de Montreuil, en particulier sa Lettre à un prince anglais (1394)
Marchandisse, Alain ULg

in Cammarosano, Paolo; Dumézil, Bruno; Gioanni, Stéphane (Eds.) et al Art de la lettre et lettre d’art. Épistolaire politique III. Convegno di studio, Roma, 11-13 aprile 2013 (2016)

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See detailFaire de la musique : rythmes et rapports chez Mallarmé
Durand, Pascal ULg

in Bonnet, Antoine; Frangne, Pierre-Henry (Eds.) Mallarmé et la Musique, la Musique et Mallarmé (2016)

Inséparable du processus d'autonomisation du discours poétique et de la radicalisation que ce processus connaît chez lui, sur fond de propagande wagnérienne et de propagation du vers libre, le modèle ... [more ▼]

Inséparable du processus d'autonomisation du discours poétique et de la radicalisation que ce processus connaît chez lui, sur fond de propagande wagnérienne et de propagation du vers libre, le modèle musical prend, dans l'esthétique de Mallarmé, l'aspect d'un système de rapports généralisés à tous les paramètres de l'écrit. L'inhérence réciproque que le poète établit entre la "Musique" et les "Lettres", représentation imaginaire dont Un Coup de dés constitue la contrepartie réalisée, répond d'un côté à un matérialisme de la forme et de l'autre à un idéalisme fictif, voulant que les structures verbales et prosodiques s'offrent en miroir du système de rapports avec quoi se confond, en sa finitude sans extériorité, l’univers même. [less ▲]

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See detailImage and Ideology During the ED III and the Akkadian Periods: the Example of the Figurative Inlaid Panels of Mari
Couturaud, Barbara ULg

in Stucky, R. A.; Kaelin, O.; Mathys, H. P. (Eds.) Proceedings of the 9th International Congress on the Archaeology of the Ancient Near East (2016)

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See detailImpacts of urban expansion on future flood damage: A case study in the River Meuse basin, Belgium
Mustafa, Ahmed; Bruwier, Martin ULg; Teller, Jacques ULg et al

in Erpicum, Sébastien; Dewals, Benjamin; Archambeau, Pierre (Eds.) et al Sustainable Hydraulics in the Era of Global Change: Advances in Water Engineering and Research (2016)

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See detailStochastic rotational stability of tower cranes under gusty winds
Vanvinckenroye, Hélène ULg; Denoël, Vincent ULg

in Proceedings of the Sixth International Conference on Structural Engineering, Mechanics and Computation (2016)

This work aims to study the rotational stability of a tower crane left free to rotate. Indeed, in case of important wind velocities, small oscillations can increase and build up into autorotations due to ... [more ▼]

This work aims to study the rotational stability of a tower crane left free to rotate. Indeed, in case of important wind velocities, small oscillations can increase and build up into autorotations due to autoparametric excitation of the structure. Many references in the literature describe the limit between oscillation and autorotation for simple cases like the deterministic pendulum and evidence the importance of the Hamiltonian of a system on its stability. In this context the susceptibility of the structure to this dynamical instability is characterized by the average time necessary to reach a given energy barrier departing from an initial energy level. This first passage time is the solution of the Pontryagin equation and is approached by an asymptotic expansion. First- and second-order terms are calculated as well as the boundary layer solution providing a correction when the initial energy is close to the barrier level. [less ▲]

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See detailDes chevaliers irréfléchis ? Panique et témérité dans les traités d’art militaire (c. 1330-c. 1530)
Masson, Christophe ULg

in Trévisi, Marion; Vissière, Laurent (Eds.) Le feu et la folie. L’irrationnel et la guerre (fin du Moyen Âge-1920) (2016)

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See detail« “Semen est sanguis christianorum” (Apol. 50, 13). Tertullien et l'hagiographie africaine »
Fialon, Sabine ULg

in Lagouanère, Jérôme; Fialon, Sabine (Eds.) Tertullianus Afer. Tertullien et la littérature chrétienne d'Afrique, IIe-VIe siècle (2016)

Despite his long expositions and treatises dealing with martyrial heroism, Tertullian does not seem to have influenced the North African hagiographical production (iind-vith centuries), while Cyprian did ... [more ▼]

Despite his long expositions and treatises dealing with martyrial heroism, Tertullian does not seem to have influenced the North African hagiographical production (iind-vith centuries), while Cyprian did it deeply. This article aims to show that the influence of the african rhetor was yet genuine. If it is difficult to detect in the Passio sanctarum Perpetuae et Felicitatis, we can find it in donatist hagiography and above all in hagiographic texts from Mauretania Caesariensis. By studying themes and literary echoes coming from Tertullian’s work, this contribution wants to help with a better comprehension of the legacy left by the rhetor in a literary genre which is not much examine from this point of view. It also wants to highlight the cultural vitality of Mauretania Caesariensis during late Antiquity. [less ▲]

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See detailAssessing the effect of traveler's nationality on daily travel time expenditure using Zero-Inflated Negative Binomial Regression models: results from the Belgian national household travel survey.
Eftekhar, Hamed ULg; Creemers, Lieve; Cools, Mario ULg

in Proceedings of the 95th Annual Meeting of the Transportation Research Board (2016)

In this paper, the effect of traveler's nationality on daily travel time expenditure is assessed using data stemming from the 2010 Belgian national household travel survey. In particular, different (zero ... [more ▼]

In this paper, the effect of traveler's nationality on daily travel time expenditure is assessed using data stemming from the 2010 Belgian national household travel survey. In particular, different (zero-inflated) negative binomial models were estimated to isolate the effect of nationality, after controlling for other contributing factors such as socio-demographics, residential characteristics, transport options and temporal characteristics. The results indicate that, even if one controls for a series of other influencing factors, nationality plays a significant role in differences in travel time expenditure. This finding is especially relevant in the development of policy packages that are targeted to tackle social inequalities. From a methodological perspective, different methodological options, i.e. two weighting schemes and two bootstrap solutions, were presented to provide sufficient support for the conclusions. In order to generalize the results in further studies, an oversampling of travelers with a different nationality is strongly recommended. Future research should focus more on the underlying psychological constructs of why ethnic and cultural differences persist, even if one accounts for other determinants. [less ▲]

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See detailLinkages in the chicken chain of Vietnam: A case study in Kim Dong district, Hung Yen province
Bui Thi, Nga; Lebailly, Philippe ULg

in Global Business Research Journals (Ed.) Proceedings of the Fourth European Academic Research Conference on Global Business, Economics, Finance and Banking (EAR16Swiss Conference) (2016)

Chicken raising in Kim Dong district, Hung Yen province of Vietnam is currently still in the first stage of development with spontaneous, small-scale, and easily vulnerable. These things lead to the ... [more ▼]

Chicken raising in Kim Dong district, Hung Yen province of Vietnam is currently still in the first stage of development with spontaneous, small-scale, and easily vulnerable. These things lead to the inefficiency in the chain activities, and in the long run, all the chain actors will have less benefit. This study aims to analyze and assess the real situation of linkages in the chicken chain and proposed some recommendations to strengthen the linkages and improve the chicken chain in the Kim Dong district based on the questionaire survey data of chicken chain actors. The findings showed that the chicken chain in the study site was undeveloped. The chain actors included input suppliers, chicken raising farmers, traders, retailers and some restaurants and supermarkets. Farmers accounted for the most important role. The other actors in the chain play a role of a bridge between producers and consumers. Processing agent did not appear in the chain. The linkages in the chain were simple, informal and loose. The actors were discrete and lack of cooperation. To promote the linkage of the chicken chain, farmers should improve their linkages to improve their strength, their voice and their power. Farmers could establish cooperation groups or cooperatives to support each other. Cooperative among chain actors should be enhance to form a tight and official chain. Local authorities should support in finding markets, creating a bridge and an environment for chain actors. Extension and educational institutions should support farmers and other actors and stakeholders to improve knowledge of the chain, so they could understand the benefit and form effective chain. [less ▲]

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See detailUse of new technology to estimate the grazing behavior of goats in northern morocco
Chebli, Youssef ULg; Chentouf, M.; Cabaraux, Jean-François ULg et al

in Proceedings of the 3nd FARAH Day, Faculty of Veterinary Medicine (2016) (2016)

In northern Morocco, goats are exclusively or partially conducted in extensive farming systems in which most nutrients from forest pastures. Grazing is associated with daily activities significantly ... [more ▼]

In northern Morocco, goats are exclusively or partially conducted in extensive farming systems in which most nutrients from forest pastures. Grazing is associated with daily activities significantly different from those of animals in confinement, such as grazing behavior and distance. Currently, new techniques have been proposed to characterize the feeding behavior of goats on rangelands and throughout the day. These measures are now determined mainly by GPS collars and IceTag, which are used to monitor activity,location and movement in grazing areas. This study was conducted in two representative pastures (Derdara and Loubare) in western Rif. The study concerned the characterization of movement of goats on a silvopastoral pasture through using new technology. GPS collars have allowed us to estimate a distance travelled at 8 km for 10 hours of grazing per day. With IceTag (attached to a rear leg of goat), we estimated the number of steps and time spent standing, lying , and active. IceTags and GPS collars data was used simultaneously to estimate times spent grazing/eating, as well as other behaviors. The study also revealed that the goats consumed mainly of palatable vegetation at ground level. The intersection of several parameters of pastoral assessment with the study of feeding behavior of goats on rangelands will allow us in future to manage better the herd in time and space. [less ▲]

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See detailExtraction of temporal gait parameters using a reduced number of wearable accelerometers
Boutaayamou, Mohamed ULg; Denoël, Vincent ULg; Bruls, Olivier ULg et al

in Proceedings of the 9th International Conference on Bio-inspired Systems and Signal Processing (2016)

Wearable inertial systems often require many sensing units in order to reach an accurate extraction of temporal gait parameters. Reconciling easy and fast handling in daily clinical use and accurate ... [more ▼]

Wearable inertial systems often require many sensing units in order to reach an accurate extraction of temporal gait parameters. Reconciling easy and fast handling in daily clinical use and accurate extraction of a substantial number of relevant gait parameters is a challenge. This paper describes the implementation of a new accelerometer-based method that accurately and precisely detects gait events/parameters from acceleration signals measured from only two accelerometers attached on the heels of the subject’s usual shoes. The first step of the proposed method uses a gait segmentation based on the continuous wavelet transform (CWT) that provides only a rough estimation of motionless periods defining relevant local acceleration signals. The second step uses the CWT and a novel piecewise-linear fitting technique to accurately extract, from these local acceleration signals, gait events, each labelled as heel strike (HS), toe strike (TS), heel-off (HO), toe-off (TO), or heel clearance (HC). A stride-by-stride validation of these extracted gait events was carried out by comparing the results with reference data provided by a kinematic 3D analysis system (used as gold standard) and a video camera. The temporal accuracy ± precision of the gait events were for HS: 7.2 ms ± 22.1 ms, TS: 0.7 ms ± 19.0 ms, HO: ‒3.4 ms ± 27.4 ms, TO: 2.2 ms ± 15.7 ms, and HC: 3.2 ms ± 17.9 ms. In addition, the occurrence times of right/left stance, swing, and stride phases were estimated with a mean error of ‒6 ms ± 15 ms, ‒5 ms ± 17 ms, and ‒6 ms ± 17 ms, respectively. The accuracy and precision achieved by the extraction algorithm for healthy subjects, the simplification of the hardware (through the reduction of the number of accelerometer units required), and the validation results obtained, convince us that the proposed accelerometer-based system could be extended for assessing pathological gait (e.g., for patients with Parkinson’s disease). [less ▲]

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See detailHandling Intra-Household Correlations in Modeling Travel: A Comparison of Hierarchical (Random Effect) Models and Marginal (GEE) Models
Cools, Mario ULg; Moons, Elke

in Proceedings of the 95th Annual Meeting of the Transportation Research Board (2016)

In this paper, the necessity for treating intra-household correlation is investigated by analyzing two travel behavior indices, i.e. travel time and travel distance, for three important travel motives ... [more ▼]

In this paper, the necessity for treating intra-household correlation is investigated by analyzing two travel behavior indices, i.e. travel time and travel distance, for three important travel motives (commuting, shopping, and leisure). Data stemming from the 2010 Belgian National Household Travel Survey are used in the analysis. Two model approaches that accommodate for intra-household correlation are compared, namely the generalized linear mixed model (GLMM) and GEE model approach. Both model approaches show that high levels of intra-household correlation are present, and therefore the use of models that take into account intra-household correlation, is strongly recommend. Results indicate that this requirement is the most urgent for non-commuting trips. Moreover, the results show that GLMM and GEE yield comparable estimates in the case of normally distributed data. Furthermore, evidence was provided that the more the estimates of the intra-household correlation provided by the two approaches differ, the less the homogeneity of the parameters is assured. In this regard, if one has to choose between the GLMM and GEE methodology, especially the negative consequences of choosing an inappropriate covariance model in the case of a GLMM model favor the selection of the GEE methodology. Further research is needed to compare the two approaches in the context of non-normally distributed travel behavior data. [less ▲]

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See detailThe impact of preexisting semantic integration on associative memory in normal aging
Bastin, Christine ULg

in Proceedings of the 6th International Conference on Memory (2016)

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See detailAgriculture towards a more sustainable development: the case of Wallonia (South of Belgium)
Burny, Philippe ULg

in Svatos, Miroslav et al. (Ed.) International Scientific Conference Agrarian Perspectives XXV "Global and European Challenges for Production, Agribusiness and the Rural Economy", Prague, Czech Republic, September 14-16, 2016: book of abstracts (2016)

The new Common Agricultural Policy defined in 2013 and implemented since 2015 created the so-called "green payment" and also supports organic farming and origin-labelled products in order to produce more ... [more ▼]

The new Common Agricultural Policy defined in 2013 and implemented since 2015 created the so-called "green payment" and also supports organic farming and origin-labelled products in order to produce more sustainable agricultural activities. This paper analyses the impact of the green payment on Walloon agriculture in 2015 and the evolution of organic farming and origin-labelled products in the South of Belgium. [less ▲]

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See detailEffect of the method and the period of oil extraction on chemical composition of olive cake in northern of Morocco
El Otmani, Samira ULg; Ayadi, Mohamed; Chentouf, Mouad et al

in Bayrou, Calixte; Cabaraux, Jean-François; Delguste, Catherine (Eds.) et al Proceedings of the 3rd FARAH Day (2016)

In the northern of Morocco, goat population is the most dominant. His diet is based on forest rangelands. Therefore, it is necessary to diversify and improve its feed calendar. Olive cake is by-product of ... [more ▼]

In the northern of Morocco, goat population is the most dominant. His diet is based on forest rangelands. Therefore, it is necessary to diversify and improve its feed calendar. Olive cake is by-product of oil extraction that widely available in the region with important production. It can be a feed resource of ruminant. This resource is produced by three methods and for limited period. This work aims to determine the effect of different oil extraction method and period on the chemical composition of olive cake in northern of Morocco. Twenty-seven samples of olive cake were collected from 3 mills by each extraction method (mechanical pressure, centrifugation 2 and 3 phases) during three periods (November, December and January). The chemical composition (dry matter, fat, mineral matter, crude protein and fibers) of the collected samples was determined by AOAC methods (1997). The extraction method had a significant effect on all parameters of the chemical composition with the exception of the fat and crude protein (P<0.05). The olive cake obtained by centrifugation 2 phases method had lower dry matter and fibers. The period had no effect on chemical composition, which eases the introduction of olive cake in the diet of ruminants. The olive cake of 2 phases is the most suitable for feed but has a reduced shelf life, which requires the development of a suitable conservation mode. [less ▲]

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See detailExperimental Passive Flutter Mitigation Using a Linear Tuned Vibrations Absorber
Verstraelen, Edouard ULg; Habib, Giuseppe ULg; Kerschen, Gaëtan ULg et al

in Proceedings of the IMAC XXXIV Conference (2016)

The current drive for increased efficiency in aeronautic structures such as aircraft, wind turbine blades and helicopter blades often leads to weight reduction. A consequence of this tendency can be ... [more ▼]

The current drive for increased efficiency in aeronautic structures such as aircraft, wind turbine blades and helicopter blades often leads to weight reduction. A consequence of this tendency can be increased flexibility, which in turn can lead to unfavourable aeroelastic phenomena involving large amplitude oscillations and nonlinear effects such as geometric hardening and stall flutter. Vibration mitigation is one of the approaches currently under study for avoiding these phenomena. In the present work, passive vibration mitigation is applied to an experimental aeroelastic system by means of a linear tuned vibration absorber. The aeroelastic apparatus is a pitch and flap wing that features a continuously hardening restoring torque in pitch and a linear one in flap. Extensive analysis of the system with and without absorber at subcritical and supercritical airspeeds showed an improvement in flutter speed around 34%, a suppression of a jump due to stall flutter, and a reduction in LCO amplitude. Mathematical modelling of the experimental system showed that optimal flutter delay can be obtained when two of the system modes flutter simultaneously. However, the absorber quickly loses effectiveness as it is detuned. The wind tunnel measurements showed that the tested absorbers were much slower to lose effectiveness than those of the mathematical predictions. [less ▲]

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See detailPerino del Vaga maestro di Marcello Venusti
Geremicca, Antonio ULg

in Agosti, Barbara; Leone, Giorgio (Eds.) Intorno a Marcello Venusti (2016)

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See detailTime-Varying Modal Parameters Identification in the Modal Domain
Bertha, Mathieu ULg; Golinval, Jean-Claude ULg

in Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering (2016)

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See detailintroduction et inter-duction; les règles du jeu.
Bodart, Céline ULg

in YOUNES, Chris; BONNAUD, Xavier; Bodart, Céline (Eds.) Encore l'architecture, encore la philosophie. (2016)

The international conference « encore l'architecture – encore la philosophie » is an initiative of the GERPHAU lab, research group for Philosophy, Architecture, Urban (Architecture School of Paris La ... [more ▼]

The international conference « encore l'architecture – encore la philosophie » is an initiative of the GERPHAU lab, research group for Philosophy, Architecture, Urban (Architecture School of Paris La Villette, UMR 7218 CNRS-Lavue), in partnership with Cité de l'architecture et du patrimoine, UMR-Lavue (Laboratoire Architecture, Ville, Urbanisme, Environnement) and philAU (a scientific thematic network : Philosophy, Architecture, Urban). This conference is the first ARENA conference (Architectural Research in Europe Network Association), a shared platform that aims to promote, support, develop and disseminate high-quality research in all fields of architecture in the widest sense. The network already includes researchers from leading European architecture schools. Synopsis. In Paris in 1987, a first event was held to celebrate the meeting of two disciplinary fields, entitled “Mesure pour mesure, architecture et philosophie”. Architects and philosophers were invited to discuss together how philosophy could capture better what determines architecture itself. Now, on the occasion of a new international conference, the GERPHAU Lab seeks to restate and refresh the question of the meeting of architecture and philosophy, by asking: what still remains today of our cross-over practices? ENCORE L'ARCHITECTURE, ENCORE LA PHILOSOPHIE. To build together these reflections about the future of our respective practices, why don't we hold to the hypothesis that our recent histories, in architecture as well as philosophy, could be written through the addition of a few prefixes? In linguistics, a prefix does not only serve the formation of a new word: it also regenerates the question of the meaning of the word. It is a discursive invention and its real strength lies in its ability to engage a new type of relationship with the world. Re-, alter-, eco-, co-, bio-, etc., these prefixes have clung to both our discourses as well as our disciplines. But in what way do they question the meaning of our practices? In archi-tecture as in philo-sophy, how do these successive re-definitions put the fundamentals into question, and how do they disturb their alleged unity inherited from Ancient Greece? And, moreover, how does the over-use of prefixes help us to understand what still makes sense in philosophy, or what still makes sense in architecture? The key issue of this conference, ‘Encore l'architecture, Encore la philosophie’, will be to trace backwards the stream of architectural and philosophical ideas through the thematic of the prefix as constituting a form of narrative. The conference will aim to trace the paths of their development, and other influencing factors, so as to return to those meetings between architecture and philosophy which already have oriented, re-oriented and sometimes dis-oriented our speech. It will be a meeting at which we invite participants to retell the story of our disciplines in order to grasp what it is still unique today about our practices. [less ▲]

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See detailLe théâtre en vers d'Apollinaire
Purnelle, Gérald ULg

in Purnelle, Gérald; Delbreil, Daniel (Eds.) Apollinaire et le théâtre. Actes du XXIIIe colloque international de Stavelot (2016)

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See detail"Nos coeurs pendent aux citronniers". Fruits et fleurs de la Méditerranée dans la poésie d'Apollinaire
Purnelle, Gérald ULg

in Debon, Claude (Ed.) Apollinaire méditerranéen. Actes du XXIIe colloque international. Aix-en-Provence, 11, 12 et 13 avril 2013 (2016)

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See detailCASTLE4D: An Archaeological Information System Based on 3D Point Clouds
Luczfalvy Jancsó, Andrea ULg; Billen, Roland ULg; Hoffsummer, Patrick ULg et al

in Lerma, José Luis; Cabrelles, Miriam (Eds.) Proceedings of the Arqueológica 2.0 - 8th International Congress on Archaeology, Computer Graphics, Cultural Heritage and Innovation : Universitat Politècnica de València, Valence 5-7 septembre 2016 (2016)

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See detailGain Adaptation for Continuous Sliding Mode Control
Cho, Hancheol ULg

in 2016 2nd International Conference on Control Science and Systems Engineering (ICCSSE), Singapore 27-29 July 2016 (2016)

In this paper a novel adaptive sliding mode controller design is presented for robust control of nonlinear uncertain systems. A continuous control law to compensate for the uncertainties is first ... [more ▼]

In this paper a novel adaptive sliding mode controller design is presented for robust control of nonlinear uncertain systems. A continuous control law to compensate for the uncertainties is first developed that is completely free from chattering. Focusing on the relation between the tried gain value and the resultant sliding variable, a new method for estimating the uncertainty bounds is then derived, leading to an adaptive law for gain-tuning by which the error eventually lies within a user-specified region in a finite time. Unlike other existing approaches, the new adaptive rule only requires the magnitude of the control input in the previous time step, which greatly eases the application of the proposed algorithm to real-world systems. An inverted pendulum system is simulated to demonstrate the accuracy and effectiveness of the proposed control strategy. [less ▲]

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

in James-Chakraborty, Kathleen (Ed.) Proceedings Of The Fourth International Conference Of The European Architectural History Network (2016)

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See detailEffects of acoustic degradations on cover song identification systems
Osmalsky, Julien ULg; Embrechts, Jean-Jacques ULg

in International Congress on Acoustics: ICA 2016 (2016)

Cover song identification systems deal with the problem of identifying different versions of an audio query in a reference database. Such systems involve the computation of pairwise similarity scores ... [more ▼]

Cover song identification systems deal with the problem of identifying different versions of an audio query in a reference database. Such systems involve the computation of pairwise similarity scores between a query and all the tracks of a database. The usual way of evaluating such systems is to use a set of audio queries, extract features from them, and compare them to other tracks in the database to report diverse statistics. Databases in such research are usually designed in a controlled environment, with relatively clean audio signals. However, in real life conditions, audio signals can be seriously modified due to acoustic degradations. For example, depending on the context, audio can be modified by room reverberation, or by added hands clapping noise in a live concert, etc. In this paper, we study how environmental audio degradations affect the performance of several state-of-the-arty cover song recognition systems. In particular, we study how reverberation, ambient noise and distortion affect the performance of the systems. We further investigate the effect of recording or playing music through a smartphone for music recognition. To achieve this, we use an audio degradation toolbox to degrade the set of queries to be evaluated. We propose a comparison of the performance achieved with cover song identification systems based on several harmonic and timbre features under ideal and noisy conditions. We demonstrate that the performance depends strongly on the degradation method applied to the source, and quantify the performance using multiple statistics. [less ▲]

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See detailMathématique et culture numérique : supports aux nouvelles formes d’expression architecturale
Jancart, Sylvie ULg; Stals, Adeline ULg; Gallas, Mohamed-Anis

in Goulette, Jean-Pierre, Ferries, Bernard (Ed.) Actes du Séminaire de Conception Architecturale Numérique (2016)

Les mathématiques occupent une place importante dans les procédés de conception et de matérialisation qui caractérisent l’architecture non standard. Cette forme d’expression architecturale fait appel à un ... [more ▼]

Les mathématiques occupent une place importante dans les procédés de conception et de matérialisation qui caractérisent l’architecture non standard. Cette forme d’expression architecturale fait appel à un enchainement de dispositifs numériques matérialisant ainsi le concept de continuum numérique. Dans ce sens, il est important de réduire l’écart qui se crée entre les possibilités techniques actuelles et les connaissances mathématiques utilisées dans les nou-velles méthodes de conception. Cet article propose une analyse des interactions entre deux disciplines, la géométrie architecturale et les supports numériques appliqués de la conception à la fabrication, ainsi que l’intérêt de leur intégration dans les démarches de conception architecturales actuelles. [less ▲]

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See detailThe ULg Multimodality Drowsiness Database (called DROZY) and examples of use
Massoz, Quentin ULg; Langohr, Thomas ULg; François, Clémentine ULg et al

in Proceedings of the 2016 IEEE Winter Conference on Applications of Computer Vision (WACV) (2016)

Drowsiness is a major cause of accidents, in particular in road transportation. It is thus crucial to develop robust drowsiness monitoring systems. There is a widespread agreement that the best way to ... [more ▼]

Drowsiness is a major cause of accidents, in particular in road transportation. It is thus crucial to develop robust drowsiness monitoring systems. There is a widespread agreement that the best way to monitor drowsiness is by closely monitoring symptoms of drowsiness that are directly linked to the physiology of an operator such as a driver. The best systems are completely transparent to the operator until the moment he/she must react. In transportation, cameras placed in the passenger compartment and looking at least at the face of the driver are most likely the best way to sense physiology related symptoms such as facial expressions and the fine behavior of the eyeballs and eyelids. We present here the new database (available on http://www.drozy.ulg.ac.be) called DROZY that provides multiple modalities of data to tackle the design of drowsiness monitoring systems and related experiments. We also present two novel systems developed using this database that can make predictions about the speed of reaction of an operator by using near-infrared intensity and range images of his/her face. [less ▲]

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See detailcolour in the urban environment: a tool for the chromatic analysis of spatial coherence
Nguyen, Ngoc Luan ULg; Teller, Jacques ULg

in XII Conferenza del Colore : Book of Abstracts (2016)

Colour is an essential component of urban landscapes that inform us about the status and history of a place, through relations of dominance, integration or uniformity that can be observed between its ... [more ▼]

Colour is an essential component of urban landscapes that inform us about the status and history of a place, through relations of dominance, integration or uniformity that can be observed between its built components. It can be shown that many traditional cities appear to be « chromatically polynuclear » in Europe and that each epoch, each type of urban area, each city is characterized by its own colour palette, which can be more or less homogeneous. Still the urban mutations observed in the second part of the 20th century generated a significant increase in the entropy of contemporary extentions of cities, which induced a loss of meaning and coherence by dislocating permanent structures set up in the past that maintained some integrity of urban landscapes. City entrances for instance, where old buildings mix with commercial equipment, show an unprecedented heterogeneity in their colour palettes. Few studies have focused on the description of these emerging configurations. Their complexity both in formal and chromatic aspects is certainly a difficulty from the perspective of their characterization. This can be explained by the lack of tools for an objective analysis of colour palettes in an urban environment. Given this lack of both affordable and reliable assessment method of colour that has been observed in the field of urban design, the research presents the implementation of a tool that can be used to characterize chromatic attributes of an urban area. The challenge is to provide statistical and quantitative answers to these questions: how is colour organized, how does it develop its own structure in the city? How can colour appear as an indicator of homogeneity and spatial coherence? As colour can be represented in a tri-dimensional space, we use a k-means statistical clustering technique, based on a data partitioning algorithm, to produce a chromatic classification of building facades. Once the chromatic categories are defined through the developed assessment method, the question of spatial coherence is investigated using Shannon entropy. Our method was tested through an application to several urban fragments of the city of Liège (Belgium) and the research highlights the differences between historic urban areas (historic center, 19th century developments) with new urban configurations (city entrances, commercial and periurban zones). [less ▲]

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See detailLe rôle des ecclésiastiques dans les armées françaises d’Italie à l’époque du Grand Schisme d’Occident (1382-1411)
Masson, Christophe ULg

in Jalabert, Laurent; Simiz, Stefano (Eds.) Le solat face au clerc. Armée et religion en Europe occidentale (XVe–XIXe siècles) (2016)

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See detailTracking a table tennis ball for umpiring purposes using a multi-agent system
Myint, Hnin; Wong, Patrick; Dooley, Laurence et al

in Proceedings of the 20th International Conference on Image Processing, Computer Vision, & Pattern Recognition (IPCV'16) (2016)

Tracking a table tennis ball for umpiring purposes is a challenging task as, in real-match scenarios, the ball travels fast and can become occluded or merged with other background objects. This paper ... [more ▼]

Tracking a table tennis ball for umpiring purposes is a challenging task as, in real-match scenarios, the ball travels fast and can become occluded or merged with other background objects. This paper presents the design of a multi-view based tracking system that can overcome the challenges of tracking a ball in real match sequences. The system has been tested on a complete table tennis rally and the results are very promising. The system is able to continuously track the ball with only marginal variations in detection. Furthermore, the initialization of the multi-camera system means it is both a portable and cost-effective solution for umpiring purposes. [less ▲]

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See detailAn approach for detection of glomeruli in multisite digital pathology
Marée, Raphaël ULg; Olivo-Marin, Jean-Christophe; Meas-Yedid, Vannary

in Proceedings International Symposium on Biomedical Imaging (2016)

We present a novel bioimage informatics workflow that combines Icy and Cytomine software and their algorithms to enable large-scale analysis of digital slides from multiple sites. In particular, we apply ... [more ▼]

We present a novel bioimage informatics workflow that combines Icy and Cytomine software and their algorithms to enable large-scale analysis of digital slides from multiple sites. In particular, we apply this workflow on renal biopsies and evaluate empirically our approach for the automatic detection of glomeruli in hundreds of tissue sections. [less ▲]

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See detailHousehold risk management strategies for coastal aquaculture risks: the case of clam farming in Thaibinh province, Vietnam
Ngo Thi Thu Hang, ULg; Tran Huu, Cuong; Lebailly, Philippe ULg

in Vietnam National University of Agriculture (VNUA); Académie de Recherche et d'Enseignement Supérieur (ARES CCD) (Eds.) Proceedings "International conference on Agriculture development in the context of international integration: opportunities and challenges". 2016 ICOAD, December 7-8, Hanoi, Vietnam (2016)

Endowed with 3,260 km of coastal line and 112 estuaries, Vietnam has a high potential for aquaculture development. However, long coastal line is also embedded with natural high risks under climate changes ... [more ▼]

Endowed with 3,260 km of coastal line and 112 estuaries, Vietnam has a high potential for aquaculture development. However, long coastal line is also embedded with natural high risks under climate changes and sea level rise. Vietnam is ranked at the 18th in the 2015 world risk index and the vulnerability index of 50.9%. Relying on coastal resources, aquatic farmers have adopted a number of strategies to cope with aquaculture risks. By using the OECD holistic approach, this research used several tools to identify farmer's performance on clam farming practices and their risk management strategies (RMS) in Thaibinh province (the largest area of the clam production in the north and north central coastal part of Vietnam). RSMs are found of diversification and flexibility among farmers. For production risks, the RSMs are: (1) enlarging clam raising size and (2) actively controlling clam production by experience and technical innovations. For market risks, the RSM is searching for more clam market channels in both input and output market. For financial risks, RSMs are (1) securing family from clam farming loss by diversifying livelihood activities and (2) accessing secure financial sources in term or interest and bond conditions. Although some RSMs had resulted positive impacts but in overall, the clam farming risks have not managed well by those strategies due to the limitation in capacity of households comparing with level of risks. To cope better with different risks in clam sector, besides the adjustment in RSMs of farmers themselves, it is necessary to have the intervention from government (from national to local level) to address the aquaculture risks which the farmers cannot handle by themselves, such as (1) addressing the issue of polluted wastewater to the clam field; and (2) more focusing in supporting farmer in linkages to the both formal financial market and output market. In addition, supports for technical training targeting on improving farmer's skills and knowledge in farming decision making and market information is also of high value to clam farmers in coping with farming risks. [less ▲]

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See detailBiomass production and use of silvopastoral areas in northern Morocco: A case study of western Rif
Chebli, Youssef ULg; Chentouf, M.; Hornick, Jean-Luc ULg et al

in Proceedings of the 3nd FARAH Day, Faculty of Veterinary Medicine (2016) (2016)

In northern Morocco, silvopastoral areas provide diverse needs for local population and livestock. These pasture represent the most important feed sources for goats in Rif Mountain. This study aims to ... [more ▼]

In northern Morocco, silvopastoral areas provide diverse needs for local population and livestock. These pasture represent the most important feed sources for goats in Rif Mountain. This study aims to evaluate biomass production and investigate the use of a silvopastoral area in two representative pastoral areas (Derdara and Loubare) exclusively used by goatherds. For biomass production, we used the method of the reference module. The surveys, on using pasture by breeders, were realized during the biomass evaluation period. The pastoral shrubs, mainly Arbustus unedo, Cistus crispus, Cistus monspeliensis, Erica arborea, Lavendula stoeches and Mentha pulegium, are the main diet of goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by an average level of diversity of pastoral flora in Derdara (94 species) and poor floristic diversity in Loubare (65 species) dominated by shrubs . The phytomass productions at Derdara and Loubare were estimated at respectively 1867 kg and 373 kg for dry matter per hectare. The continuous use of pastoral resources and lack of pasture management has considerably reduced the palatable pasture species and has allowed the appearance of low pastoral value species. Statistically significant differences were observed depending on season, with a maximum in the spring and a minimum in the winter, and according to sampling sites are differentiating by intensity of canopy cover. Management actions and use of silvopastoral resources, including a reduction in grazing pressure, should be developed to ensure better productivity and sustainability of these resources. [less ▲]

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See detailFrom the spirit to the letter of the charters : mind the gap for the future
Houbart, Claudine ULg; Dawans, Stéphane ULg

in Szmygin, Bogusław (Ed.) Heritage in Transformation. Cultural heritage Protection in XXI century. Problems, Challenges, Predictions (2016)

Since the 1960’s and the foundation of ICOMOS, charters have been considered as a sort of conservation gospel. In this presentation, we would like to question this fact, in the light of the very ... [more ▼]

Since the 1960’s and the foundation of ICOMOS, charters have been considered as a sort of conservation gospel. In this presentation, we would like to question this fact, in the light of the very particular production and reception conditions of the documents. What may be perceived as a mostly provocative approach seems to us a constructive basis for future reflections. When we read and use charters – in this presentation, we will mainly focus on the Venice Charter, the Nara document and the Riga Charter – , we forget too often that they have been written by human beings, sometimes very tired, in a hurry, and even arguing with each other. The study of the archival material related to the writing of the Venice Charter and the Nara document very clearly illustrates that these documents are rather a conceptual “bricolage” than indisputable normative texts as if they had been written by lawyers. In the case of the Venice Charter, the archive as well as the records of Raymond M. Lemaire, Paul Philippot or Gertrud Tripp make clear that the document has been written at the last moment and adopted too rapidly by an assembly too glad to finally have a updated version of the Athens charter. As a consequence, only a few years later, Raymond Lemaire and Piero Gazzola already questioned the validity of the new text in the light of the extension of heritage debates to the city centers. On the other hand, the fact that a French and an English version of the Nara document were written in parallel by Raymond M. Lemaire and Herb Stovel in 1994 has had immediate consequences on the content and the formulation of the text, which logically left both of them unsatisfied with the result. Even so, the Venice charter and the Nara document still have force of law today. Yet, besides the particular circumstances of their writing, we must keep in mind that these texts answered specific questions, closely linked to the context: a critical answer to postwar reconstruction for the first, and apparently opposed visions of authenticity between East and West for the second. As far as the Riga charter is concerned, the influence of the delicate context of the Eastern bloc collapse is evident. For this reason, using such documents today requires at least a critical reading, going back to the spirit beyond the text. Our presentation will illustrate ad absurdum, through recent case studies, how a cynical reading of such documents can lead to interventions dangerously in conflict with this spirit and the fundamental ideals of conservation philosophy. In the era of late capitalism and heritage globalization, are we allowed to forget the conditions and the context in which our doctrinal documents have been written to justify anything and everything and to meet, for example, the “tourist gaze”, the “nouveaux riches” taste or the architect’s egomania? Do architects really want to know what the writers of the Venice charter’s article 9 meant by the “contemporary stamp”? What are the limits of the tolerance towards reconstruction first expressed by the Nara document, and a few years later, the charter of Riga? So many questions that ICOMOS must face if it wants to pursue its guiding mission in a mostly financial world. [less ▲]

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

in Derda, Tomasz; Urbanik, Jakub; Lajtar, Adam (Eds.) Proceedings of the 27th International Congress of Papyrology, Warsaw 29.07—3.08 2013 (2016)

Detailed reference viewed: 57 (15 ULg)
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See detailMethod for detecting interest points in images using angular signatures
Grogna, David ULg; Boutaayamou, Mohamed ULg; Verly, Jacques ULg

in IEEE Xplore Digital Library (2016)

We present an innovative method for detecting interest points (IPs) in grayscale and color images. It is based on the use of angular signatures (ASs), produced by spinning, at each pixel in the image, an ... [more ▼]

We present an innovative method for detecting interest points (IPs) in grayscale and color images. It is based on the use of angular signatures (ASs), produced by spinning, at each pixel in the image, an "x-tapered, y-derivative, half-Gaussian kernel" in discrete angular steps. By exploiting the AS(s) produced at each pixel, it automatically "classifies" the pixel as being an IP or not. We present preliminary results on synthetic grayscale and real color 2D images, and these confirm the potential value of the method. It can easily be extended from grayscale and color images to images with any number of components, as well as to 3D volumetric images and images on grids of higher dimensionality. It is useful for stereo matching and video tracking. [less ▲]

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See detailBispecial Factors in the Brun S-Adic System
Labbé, Sébastien ULg; Leroy, Julien ULg

in Brlek, Sre Vcko; Reutenauer, Christophe (Eds.) Developments in Language Theory: 20th International Conference, DLT 2016, Montréal, Canada, July 25-28, 2016, Proceedings (2016)

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See detailThe syntax-semantics Interface in Earlier Egyptian: A Case study in Verbs of Cognition
Winand, Jean ULg

in Coping with Obscurity: The Brown Workshop on Earlier Egyptian Grammar (2016)

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See detailSparse plus low-rank autoregressive identification in neuroimaging time series
Liegeois, Raphaël ULg; Mishra, Bamdev ULg; Zorzi, Mattia et al

in Proceedings of CDC 2015 (2016)

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See detailHigh rate monitoring CH4 production dynamics and their link with behavioral phases in cattle
Blaise, Yannick ULg; Lebeau, Frédéric ULg; Andriamandroso, Andriamasinoro ULg et al

in EAAP – 67 th Annual Meeting, Belfast 2016 (2016)

Microbial fermentation in the rumen produces methane (CH4) which is a loss of energy for ruminants and also contributes to global warming. While the respiration chamber is the standard reference for CH4 ... [more ▼]

Microbial fermentation in the rumen produces methane (CH4) which is a loss of energy for ruminants and also contributes to global warming. While the respiration chamber is the standard reference for CH4 emissions quantification, daily CH4 production dynamics can be measured only by steps of 30 min and measurements on pasture are impossible. The alternative method using SF6 as tracer gas can be applied for grazing animals but provides average CH4 production values over at least several hours, making it impossible to measure short term dynamics of rumen CH4 production with changing animal behavior along the day. Newly developed methods using CO2 as internal tracer gas extrapolate CH4 emissions from few short measurements. However, both CO2 and CH4 emissions fluctuate during the day depending on the behavior and the post-feeding times questioning the validity of this method. Therefore, an innovative device was developed to monitor at a high rate CH4 and CO2 emission dynamics in order to investigate the link between CH4 dynamics and the animal behavior on pasture. Preliminary results showed the ability of the device to record differences in CH4:CO2 ratios and eructation frequencies according to the individual and the behavior. Results from complementary experiments in barn with animals fed contrasting diets regarding CH4 production (with and without linseed) and on pasture with different forage allowance will be presented in order to highlight how post-feeding time and grazing behavior impact CO2 and CH4 emission dynamics along the day. [less ▲]

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See detailLes compétences et les modes de saisine de la Cour constitutionnelle : état des lieux au lendemain de la sixième réforme de l’État
Miny, Xavier ULg

in La Cour constitutionnelle - De l'art de modeler le Droit pour préserver l'Egalité - Actes du colloque du 28 avril 2016 organisé par la Conférence libre du Jeune Barreau de Liège (2016)

La contribution est dédiée à la présentation générale de la Cour constitutionnelle, ainsi qu'aux méthodes pour la saisir. Dans cette perspective, l'étude retrace également en détail l'évolution des ... [more ▼]

La contribution est dédiée à la présentation générale de la Cour constitutionnelle, ainsi qu'aux méthodes pour la saisir. Dans cette perspective, l'étude retrace également en détail l'évolution des compétences de la Cour constitutionnelle depuis sa création, jusqu'à sa situation après la sixième réforme de l'État. [less ▲]

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See detailA quantitative approach to the concept of concrete repair compatibility
Bissonnette, Benoît; Modjabi-Sangnier, François; Courard, Luc ULg et al

in Dehn, Frank; Beushausen, Hans (Eds.) Concrete Repair, Rehabilitation and Retrofitting IV (2016)

The work reported in this paper is part of a wider research program intended to provide the repair industry with improved fundamental knowledge to implement rational design methods and rules for repairs ... [more ▼]

The work reported in this paper is part of a wider research program intended to provide the repair industry with improved fundamental knowledge to implement rational design methods and rules for repairs. In that regard, there is a strong need to study the fundamental relationships and parameters that underlie the repair compatibility concepts, in particular those relating to dimensional compatibility. In the first part of the paper, classical formulas derived for thick cylindrical specimens were used to analyze the tensile stress buildup in annular restrained shrinkage test specimens, taking into account the restraining conditions the investigated ring test method and the individual concrete properties/phenomena determined experimentally (elastic modulus, creep coefficient, drying shrinkage deformation). By comparing the ring test results with the calculated tensile stresses, the validity and accuracy of the theoretical approach could be appraised. A quantitative approach for the evaluation of the performance of concrete repair in terms of dimensional compatibility was then developed. Derived from the basic strain balance approach (ratio between the total deformability in tension and the drying shrinkage deformation), a parameter referred to as dimensional compatibility index (CI) was introduced in order to analyze the evolution of dimensional compatibility as a function of time for a given concrete mixture, taking into account the actual degree of restraint in the element. Compatibility index evolution curves were calculated for various repair concrete mixtures in order to highlight material behavior relating to composition parameters and temperature. As it requires the evaluation of a limited number of individual properties that are for most readily available (i.e. strength, elastic modulus, shrinkage), the compatibility index expressed in terms of deformation carries a lot of potential as a relatively simple and convenient analytical tool for assessing the cracking sensitivity of concrete repair materials. Overall, it can be stated that a good correlation was found between the ring test results and the tensile stress values calculated based on individual concrete properties / phenomena and that the proposed calculation method lays ground for evaluating quantitatively the dimensional compatibility of repair materials and defining suitable performance criteria. [less ▲]

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See detailAn integrated framework for forecasting travel behavior using Markov Chain Monte-Carlo simulation and profile Hidden Markov Models
Saadi, Ismaïl ULg; El Saeid Mustafa, Ahmed Mohamed ULg; Teller, Jacques ULg et al

in Proceedings of the 95th Annual Meeting of the Transportation Research Board (2016)

Recent advances in agent-based micro-simulation modelling have further underlined the importance of a thorough full synthetic population procedure to guarantee a correct characterization of the true ... [more ▼]

Recent advances in agent-based micro-simulation modelling have further underlined the importance of a thorough full synthetic population procedure to guarantee a correct characterization of the true population. We propose an integrated approach including Markov Chain Monte Carlo (MCMC) simulation and profiling based methods to catch the complexity and the diversity of agents of the true population through representative micro samples. The population synthesis method is capable of building the joint distribution of a given population with its corresponding marginal distributions (e.g. age, gender, socio-professional status etc.) using complete, partial conditional probabilities or both of them at the same time. Particularly, the estimation of socio-demographic variables and characterization of daily activity-travel patterns are included within the framework. Data stemming from the 2010 Belgian Household Daily Travel Survey (BELDAM) are used to calibrate the modelling framework. We illustrate that this framework catches in an efficient way the behavioral heterogeneity of travelers. Furthermore, we show that the proposed framework is adequately adapted to build large scale micro-simulation scenarios of transportation and urban systems. [less ▲]

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See detailBack to the Text: Artists’ Recipe Books as Source for Historical Research in Art Technology
Neven, Sylvie ULg

in Sources on Art Technology : Back to Basics (2016)

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See detailUne analyse dynamique des interactions entre acteurs portuaires et leurs effets sur l’efficience d’un port pétrolier
Belaid, Emna ULg; Rigo, Philippe ULg; Cools, Mario ULg

in Recueil des articles des 34èmes Rencontres Universitaires de Génie Civil de l'AUGC (2016)

The port is a heterogeneous entity which includes a set of actors whose objectives are sometimes contradictory. The analysis of their interactions allows us to understand the mechanism that governs the ... [more ▼]

The port is a heterogeneous entity which includes a set of actors whose objectives are sometimes contradictory. The analysis of their interactions allows us to understand the mechanism that governs the port management. This mechanism influences the port performance. In this article, we analyze port efficiency as a dynamic model. The latter is based on a framework established by a systemic analysis. From the simulations performed, it may be concluded that the parameters "loading rate" and "Connector dimension" are the most important parameters. Investment in new facilities for the port of La Skhira (Sfax, Tunisia) is our main recommendation. [less ▲]

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See detailExperimental validation of heat transport modeling in district heating networks
Sartor, Kevin ULg

in Proceedings of Conference (2016)

District heating networks (DHN) are generally considered as a convenient, economic and environmental-friendly way to supply heat to a large amount of buildings. Some modelling technics are required to ... [more ▼]

District heating networks (DHN) are generally considered as a convenient, economic and environmental-friendly way to supply heat to a large amount of buildings. Some modelling technics are required to consider the dynamic behaviour of district heating network to design them correctly, spare investment costs and limit the heat losses related to the use of a too high operating temperature. For the same reasons, the DHN control or retrofit of installations also requires the assessment of the DHN dynamic behaviour. To achieve this, the heat transport in DHN, which is one of the key issues in the behaviour of a whole centralized heating system, has to be correctly modelled. Previous work evidenced current limitations of one dimensional finite volume method to model heat transport in pipes and proposed an alternative method considering the thermal losses and the inertia of the pipes. The present contribution intends to experimentally validate this model on a test rig facility available in the Thermodynamics laboratory of the University of Liège (ULg, Belgium) and on an existing district heating network. For both experimental facilities, the current model shows good agreement between experimental data and simulation results for a large range of water velocities. Moreover, it is shown that the thermal inertia of the pipe has a significant influence on the outlet pipe temperature profile. [less ▲]

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See detailRuptures et démesures de l'architecture non standard à l'ère du numérique: la paramétrisation comme outil de réconciliation.
Stals, Adeline ULg; Elsen, Catherine ULg; Jancart, Sylvie ULg

in Goulette, Jean-Pierre; Ferries, Bernard (Eds.) Actes du Séminaire de Conception Architecturale Numérique (2016)

L’intégration de l’outil numérique au processus de conception architectural a ouvert les champs morphologiques et a favorisé l’émergence de l’architecture non standard. Cette contribution identifie les ... [more ▼]

L’intégration de l’outil numérique au processus de conception architectural a ouvert les champs morphologiques et a favorisé l’émergence de l’architecture non standard. Cette contribution identifie les principaux bouleversements pratiques et réflexifs liés à l’émergence de cette architecture parfois démesurée. Il les résume en trois ruptures entre les différentes phases du projet-objet et les acteurs du projet. Nous proposons ensuite de considérer la modélisation paramétrique comme l’un des outils d’une maîtrise renouvelée du processus de génération de la forme, et de la forme elle-même. [less ▲]

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See detailScience yield modeling with the Exoplanet Open-Source Imaging Mission Simulator (EXOSIMS)
Delacroix, Christian ULg; Savransky, Dmitry; Garrett, Daniel et al

in Modeling, Systems Engineering, and Project Management for Astronomy VI (2016)

We report on our ongoing development of EXOSIMS and mission simulation results for WFIRST. We present the interface control and the modular structure of the software, along with corresponding prototypes ... [more ▼]

We report on our ongoing development of EXOSIMS and mission simulation results for WFIRST. We present the interface control and the modular structure of the software, along with corresponding prototypes and class definitions for some of the software modules. More specifically, we focus on describing the main steps of our high-fidelity mission simulator EXOSIMS, i.e., the completeness, optical system and zodiacal light modules definition, the target list module filtering, and the creation of a planet population within our simulated universe module. For the latter, we introduce the integration of a recent mass-radius model from the FORECASTER software. We also provide custom modules dedicated to WFIRST using both the Hybrid Lyot Coronagraph (HLC) and the Shaped Pupil Coronagraph (SPC) for detection and characterization, respectively. In that context, we show and discuss the results of some preliminary WFIRST simulations, focusing on comparing different methods of integration time calculation, through ensembles (large numbers) of survey simulations. [less ▲]

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See detailTechno-economic optimization of isolate micro-grids including PV and Li-Ion Batteries in the Bolivian context
Balderrama, Sergio; Canedo, Walter; Lemort, Vincent ULg et al

in Proceedings of ECOS 2016 - the 29th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (2016)

In Bolivia 44 % of the people living in rural areas do not have reliable access to electric energy. This is due to a combination of unfavourable geography and the lack of economic resources to achieve the ... [more ▼]

In Bolivia 44 % of the people living in rural areas do not have reliable access to electric energy. This is due to a combination of unfavourable geography and the lack of economic resources to achieve the necessary infrastructure. In this context, the main goal of this study is to evaluate the economic and technical feasibility of micro-grids including photovoltaic panels (PV), batteries systems and the possible inclusion of diesel generators for off-grid applications. To that aim, a linear optimization model was developed within the Pyomo framework in order to optimize both the installed capacities and dispatch of the PV, battery and diesel sub-systems. The defined objective function is the net present cost. The exogenous inputs of the optimization are the typical demand and solar irradiation of a region of Bolivia in order to achieve results close to real Bolivian systems. Results indicate that due to the high levels of subvention to hydrocarbons, the PV and Li-Ion technology are not yet competitive with a diesel generator for the electrification of rural areas. On the other hand a sensitivity analysis is performed and proves that if the government decide to stop part of the subvention or shared it between conventional and non-conventional sources, the PV becomes competitive and the Li-Ion batteries enter the market around 2020. [less ▲]

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See detailDevelopment and use of foamed recycled fibers to control shrinkage cracking of cementitious mortars
Coppola, Bartolomeo ULg; Di Maio, Luciano; Courard, Luc ULg et al

in Proceedings of the 4rd Workshop "The New Boundaries of Structural Concrete" (2016)

In this study a new class of engineered fibers were produced using end of waste materials obtained from post-consumer plastics. Taking into account the rising issue of plastic waste disposal and the ... [more ▼]

In this study a new class of engineered fibers were produced using end of waste materials obtained from post-consumer plastics. Taking into account the rising issue of plastic waste disposal and the importance of fiber/matrix adhesion for composites materials, recycled plastic fibers with improved adhesion were developed. In particular, foamed fibers presenting a rough surface and a porous morphology were obtained by a foam extrusion process using a chemical blowing agent. Fiber reinforced mortars (FRMs) were produced containing foamed fibers at three volume fractions (0.50, 1 and 2 %) and two lengths (15 and 30 mm). FRM plastic shrinkage cracking resistance was investigated: the better adhesion of foamed fibers influenced cracks propagation, reducing crack area and delaying crack openings during shrinkage. Moreover, shorter fibers are better efficient in controlling cracks length while longer fibers are able to reduce cracks width and number. [less ▲]

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See detailZola in Sciascia: Una nota su Candido (1977) e sul corpo
Curreri, Luciano ULg

in Baldassarri, Guido (Ed.) I cantieri dell’italianistica. Ricerca, didattica e organizzazione agli inizi del XXI secolo. (2016)

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See detailHow do small and medium architectural firms deal with architectural complexity? A look into digital practices
Stals, Adeline ULg; Jancart, Sylvie ULg; Elsen, Catherine ULg

in Hentila, Helka-Liisa; Herneoja, Aulikki; Pihlajaniemi, Henrika (Eds.) et al Proceedings of te 34th eCAADe annual conference: Complexity and Simplicity (2016)

Digital design tools are nowadays deeply rooted in most architectural design processes. Either used as a way to communicate a designed artifact, or rather as a medium to test innovative morphologies ... [more ▼]

Digital design tools are nowadays deeply rooted in most architectural design processes. Either used as a way to communicate a designed artifact, or rather as a medium to test innovative morphologies (lately referred to as non-standard architecture), these design tools profoundly shape the way architects envision complexity all along their day-to-day tasks. The large teams of "star-architects" were able to develop dedicated and specific strategies and digital tools to overcome some of the technological gaps they were faced to when using commercial packages. But how are small and medium firms dealing with the inherent complexities of such software? This contribution analyzes how those firms (and more specifically the Walloon ones) deal with the growing complexity of digital tools, both in terms of use and interdisciplinarity. [less ▲]

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See detail: « Les aventures de Leo Frobenius au Congo » : l’histoire d’une expédition ethnographique et de ses suites judiciaires, à la lumière des archives coloniales
Braillon, Charlotte ULg

in Leo Frobenius : histoire croisée de la constitution et de l'approche d'un savoir ethnologique en France et en Allemagne. Actes du colloque des 19 -20 février 2014 à la Goethe-Universität (2016)

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See detailLa nutrition néonatale – Pourquoi et comment l’optimiser tout en réduisant le risque d’entérocolite nécrosante
SENTERRE, Thibault ULg; Jacob, Mathilde

in journée annuelle de conférences de l'association des Infirmiers Spécialisés en Pédiatrie et Néonatologie (2016)

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See detailBiomass production and use of silvopastoral areas in the Rif Mountains of Morocco
Chebli, Youssef ULg; Chentouf, Mouad; Hornick, Jean-Luc ULg et al

in Casasus, I.; Lombardi, G. (Eds.) Mountain pastures and livestock farming facing uncertainty: environmental, technical and socio-economic challenges (2016)

In Northern Morocco, the forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats in ... [more ▼]

In Northern Morocco, the forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats in the Rif Mountain. This study aims to evaluate the biomass production and investigate the use of a silvopastoral area (Derdara) exclusively used by goatherds. For biomass production, we used the method of the reference module. A survey on using pasture by breeders was realized during the biomass evaluation period. The pastoral shrubs, mainly Arbutus unedo, Cistus crispus, Cistus monspeliensis, Erica arborea, Lavandula stoeches and Mentha pulegium, represent the fundamental diet for goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by a diversity average level of pastoral flora (94 species) dominated by shrubs. The biomass produced was estimated at 1867 kg dry matter per hectare composed for 74% by shrubs. Significant differences were observed concerning the intensity of the canopy cover, depending on the season and according to sampling sites. The continuous use of the same pasture for a long time, can explain the appearance of low pastoral value species in the study area, such as Arisarum vulgare, Daphne gnidium and Ranunculus sardous. The reasonable use of silvopastoral resources, including a reduction in grazing pressure, should be developed to ensure better productivity and sustainability of these resources. [less ▲]

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See detailMéditerranée et conquêtes françaises : La place de la mer dans les campagnes d’Italie à l’époque du Grand Schisme d’Occident
Masson, Christophe ULg

in La maritimisation du monde : De la préhistoire à nos jours. Enjeux, objets et méthodes (2016)

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See detailL'appartement des bains et le cabinet des peintures du château de Fontainebleau sous le règne d'Henri IV
Fagnart, Laure ULg

in Nativel, Colette (Ed.) Henri IV. Art et pouvoir (2016)

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See detailLes conceptions des futurs enseignants du secondaire en matière d'évaluation : frein ou levier à un changement de pratiques ?
Goffin, Christelle ULg; Fagnant, Annick ULg

in Cavaco, Carmen; Alves, Natãlia; Guimarães, Paula (Eds.) et al Actes du colloque de l’Admée-Europe. Actes du 28e colloque qui s’est tenu en janvier 2016 à Lisbonne : Avaliação e aprindizagem = Evaluations et apprentissages (2016)

Plusieurs recherches se sont intéressées aux conceptions des enseignants ou futurs enseignants en matière d’évaluation (Boraita & Issaieva, 2013 ; Issaieva & Crahay, 2010 ; Goffin, Renson & Fagnant, 2014 ... [more ▼]

Plusieurs recherches se sont intéressées aux conceptions des enseignants ou futurs enseignants en matière d’évaluation (Boraita & Issaieva, 2013 ; Issaieva & Crahay, 2010 ; Goffin, Renson & Fagnant, 2014 ; Soussi, Ducrey, Ferrez, Nidegger & Viry, 2006). Elles pointent des conceptions relativement positives à propos des évaluations formatives, tout en en marquant les limites quant aux retombées dans les classes. Les modifications des pratiques seraient en effet tributaires de résistances diverses, liées notamment « à la complexité et la lourdeur qui caractérise la mise en place des démarches concrètes en vue de réguler au mieux les apprentissages » (Boraita & Issaieva, p. 1). Les résistances pourraient aussi s’expliquer par une non-prise en compte des conceptions à l’entrée en formation et par la difficulté de réellement les infléchir (Crahay, Wanlin, Issaieva & Laduron, 2010). La présente étude s’intéresse aux conceptions des futurs enseignants du secondaire. S’appuyant sur un questionnaire soumis à environ 250 étudiants à leur entrée en formation initiale, elle cherche à cerner la façon dont ils perçoivent, spontanément d’abord puis de manière plus ou moins incitative ensuite, les liens entre évaluation et apprentissage. Considérant que les conceptions des futurs enseignants proviennent de sources diverses, dont notamment les expériences qu’ils ont vécues eux-mêmes en tant qu’élève (Crahay & al., 2010 ; Vause, 2010), l’étude s’intéresse également aux différentes formes d’évaluation auxquelles ils ont été confrontés dans leur parcours scolaire et à anticiper des leviers et freins potentiels pour leurs pratiques futures. A plus long terme, l’objectif est de prendre en compte ces conceptions dans le cadre de la formation, pariant sur l’idée qu’une réelle prise en compte des conceptions les plus ancrées et des freins anticipés pourraient être bénéfique pour un transfert vers la pratique. [less ▲]

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See detailMicroanalyzes of remarkable microfossils of the Late Mesoproterozoic–Early Neoproterozoic
Cornet, Yohan ULg; Beghin, Jérémie ULg; Kabamba Baludikay, Blaise ULg et al

in European Geosciences Union General Assembly 2016 Vienna, Austria, 2016 (2016)

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See detailStockage de chaleur en aquifère et flexibilité de la demande électrique: quelles possibilités?
Paulus, Claire; Bolly, Pierre-Yves; Hermans, Thomas ULg et al

in Proceedings des 34e rencontres universitaires du Génie Civil de l'AUGC (2016)

In the context of energy demand side management (EDSM) and heat storage in aquifers, the design and functioning of aquifer thermal energy storage (ATES) systems have strong interconnections with the ... [more ▼]

In the context of energy demand side management (EDSM) and heat storage in aquifers, the design and functioning of aquifer thermal energy storage (ATES) systems have strong interconnections with the geology of the site which may be complex and heterogeneous, making predictions difficult. In this context, we developed a subsurface monitoring methodology to better characterize heat transfer in the subsurface with the help of 4D electrical resistivity tomography (ERT), multiple hydrological measurements in wells, and a short-term heat storage experiment conducted for the purpose in a confined alluvial aquifer. Results clearly show the ability of ERT to delimit the thermal plume growth during injection, the diffusion and decrease of temperature during storage, and the decrease in size after heat recovery. Energy balance shows that up to 70% of the energy can be easily recovered with an adapted strategy in the context of DSM. Short-term heat storage in alluvial aquifer is efficient and ERT is a valuable tool to image and estimate the temperature distribution in the subsurface. [less ▲]

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See detailCharacterization of Nappe Vibration on a Weir
Lodomez, Maurine ULg; Pirotton, Michel ULg; Dewals, Benjamin ULg et al

in Sustainable Hydraulics in the Era of Global Change (2016)

The nappe vibration phenomenon may affect numerous prototype structures, such as gates and spillways, when they operate under low head conditions. This phenomenon, which is far not well understood and ... [more ▼]

The nappe vibration phenomenon may affect numerous prototype structures, such as gates and spillways, when they operate under low head conditions. This phenomenon, which is far not well understood and poorly controlled, produces frequency oscillations in the thin flow nappe cascading downstream of the weir. These oscillations result in a disturbing noise production that increases the environmental and societal impacts of the hydraulic structure. Given limited information available regarding the physical processes of this phenomenon, a detailed investigation has been undertaken to characterize the flow for free-overfall structures where nappe vibration may be of concern. The research conducted on a prototype-scale linear weir model (weir length of 3.5 m and a fall height of 3 m) at the Engineering Hydraulics laboratory of the University of Liège enable to describe the flow and nappe vibration by using image and sound analysis. The paper presents the first quantitative results of the study. [less ▲]

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See detailL'Action française et l'affaire de Saverne
Schmidt, Anne-Catherine ULg

in Grandhomme, Jean-Noël (Ed.) L'affaire de Saverne (2016)

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See detailLes obligations, la responsabilité et l’assurance de l’architecte. Panorama général et pistes de réflexion
Kohl, Benoît ULg

in Uytterhoeven, Kristof (Ed.) L’architecte au 21ième siècle. Profession libérale ou entreprise protégée ? La loi du 20 février 1939 : 75 ans (2016)

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See detailPerformance of the chicken contract farming and its affecting factors in Vietnam: a case study in Hoa Thach Commune, Quoc Oai District, Hanoi
Bui Thi, Nga; Lebailly, Philippe ULg

in Vietnam National University of Agriculture (VNUA); Académie de Recherche et d'Enseignement Supérieur (ARES) (Eds.) Proceedings International Conference "Agriculture Development in the Context of International Integration: Opportunities and Challenges". December 7-8, Hanoi, Vietnam (2016)

This study aims to analyze the performance and its affecting factors in the chicken contract farming in a case study of Hoa Thach commune, Quoc Oai province, Hanoi, based on the questionnaire surveyed ... [more ▼]

This study aims to analyze the performance and its affecting factors in the chicken contract farming in a case study of Hoa Thach commune, Quoc Oai province, Hanoi, based on the questionnaire surveyed data of 40 representative chicken contract farmers in the study site in 2016. The results showed that surveyed household’s head was medium (37 years old), low educational level (80% secondary school), but they had experience (87.5% had more than 3 years of raising), with quite large raising scale (popular 3001 to 5000 heads). Feed cost was too high (87.7% total cost), led farmers to lower performance, and situation of depending on the market. The farm income was rather low, accounted for only 10.4% total revenue. Results also showed that, any decrease in labor cost, improvement in by - products revenue or egg laying rate will lead to the enhancement of chicken raising performance for contract farmers. Therefore, the farmers had better reduced the feed cost, better manage their labor, exploit by- products and improve the egg laying rate to enhance the farm performance. [less ▲]

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See detailMicrosyntaxe et macrosyntaxe des lexèmes _chaitif_, _dolent_, _las_ et _maleuré/maleureus_ en français médiéval. De l'adjectif au locutif
Mazziotta, Nicolas ULg

in Actes du 5e Congrès Mondial de Linguistique Française (CMLF) (2016)

This paper investigates the syntax of the following medieval French lexemes: chaitif, dolent, las and maleuré/maleureus. The theoretical framework takes into account micro- and macrosyntax. The lexemes at ... [more ▼]

This paper investigates the syntax of the following medieval French lexemes: chaitif, dolent, las and maleuré/maleureus. The theoretical framework takes into account micro- and macrosyntax. The lexemes at study can be used as adjectives as well as locutives, i.e. words belonging to a POS that has a very constrained microsyntactic distribution and carrying a specific illocutionary point. The latter characteristics implies that locutives cannot be governed by other words in a syntactic dependency structure. The syntactic analysis of the locutive uses of the aforementionned lexemes leads to consider them as "advocate" illocutionary units that undergo special constraints on their linear order. [less ▲]

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See detailLes Lannoy, Lalaing, Croÿ, Luxembourg. Des lignages curiaux bourguignons devant la mort (XVe–XVIe s.)
Marchandisse, Alain ULg

in Andenmatten, Bernard; Pibiri, Eva (Eds.) Mourir à la cour. Normes, usages et contingences funéraires dans les milieux curiaux à la fin du Moyen Âge et à l’époque moderne (2016)

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See detailThe ultimate role of the perirhinal cortex in familiarity: a novel hypothesis
Besson, Gabriel ULg; Bastin, Christine ULg

in Proceedings of the 6th International Conference on Memory (2016)

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See detailBridging familiarity and novelty detection: a matter of timing?
Delhaye, Emma ULg; Barbeau, Emmanuel; Moulin, Christopher et al

in Proceedings of the 6th International Conference on Memory (2016)

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See detailJohn of Trevisa légitimise la traduction en langue anglaise (vers 1387)
Dor, Juliette ULg

in De Leemans, Pieter; Goyens, Clément (Eds.) Translation and Authority. Authorities in Translation (2016)

A l'instar de Chaucer ou des milieux wyclifiens, Trevisa revendique pour le nouveau lectorat/auditorat vernaculaire le droit d'accéder au savoir. Il s'appuie notamment sur la "translatio studii", le ... [more ▼]

A l'instar de Chaucer ou des milieux wyclifiens, Trevisa revendique pour le nouveau lectorat/auditorat vernaculaire le droit d'accéder au savoir. Il s'appuie notamment sur la "translatio studii", le modèle français et l'autorité culturelle qu'avait connue l'anglais avant Hastings. [less ▲]

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See detailTechniques for modulating error resilience in emerging multi-value technologies
Sjalander, Magnus; Borgstr, Gustaf; Klymenko, Mykhailo ULg et al

in Proceedings of the ACM International Conference on Computing Frontiers (2016)

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See detailThermal and visual comfort under different trees cover in urban spaces at Constantine city centre - hot and dry climate
LOUAFI BELLARA, Samira; ABDOU, Saliha; Reiter, Sigrid ULg

in La Roche, Pablo; Schiler, Marc (Eds.) Proceedings of the 32nd International Conference on Passive and Low Energy Architecture. PLEA 2016 : "Cities, Buildings, People: Towards Regenerative Environments" (2016)

In urban environments, vegetated spaces have proven to act as ameliorating factors of some climatic features related to heat stress, reducing their effects and providing comfortable outdoor settings for ... [more ▼]

In urban environments, vegetated spaces have proven to act as ameliorating factors of some climatic features related to heat stress, reducing their effects and providing comfortable outdoor settings for people. The consideration of the thermal and visual outdoor conditions in cities is increasingly important for the well-being of man and the use of public spaces. Tree shaded areas can reduce the heat effect by amelioration of microclimate and human outdoor thermal comfort. The objective of this research is to investigate thermal and visual comfort and perception in tree shaded area in open urban spaces and to compare the performance of areas shaded by different types of tree coverage, including an open area without vegetation, located in a hot and dry climate. The methodology is based on a combination of an investigation conducted by structured interview, microclimate measurement. Measurements of air temperature, air humidity, wind speed, solar global radiation, luminance and the sky view factor combined with comfort surveys were performed during summer in different areas in the city center of Constantine in Algeria (a hot and dry climate). The results indicate that the percentage of tree coverage of a space is a highly important metric to assess outdoor comfort in a hot-dry climate and that it influences mainly the use of outdoor recreational areas. Dense vegetation cover optimises the microclimatic environment for pedestrians' thermal and visual comfort in urban spaces, under these climatic conditions. [less ▲]

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See detailLes anaphores rhétoriques : des rafales de motifs ?
Longrée, Dominique ULg; Mayaffre, Damon; Mellet, Sylvie

in Mayaffre, Damon; Poudat, Céline; Vanni, Laurent (Eds.) et al Statistical Analysis of Textual Data, Proccedings of 13th International Conference on Statistical Analysis od Textual Data, 7-10 June 2016, Nice (2016)

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See detailInfluence de la fraction granulaire et de l'origine des granulats recyclés sur leurs propriétés
Zhao, Zengfeng ULg; Courard, Luc ULg; Michel, Frédéric ULg et al

in Courard, Luc; Collin, Frédéric; Cerfontaine, Benjamin (Eds.) RUGC 2016 (2016)

De très grandes quantités de déchets de construction et de démolition sont produites chaque année. Afin de faire bon usage des granulats recyclés (GR) dans le béton, il est très important d’étudier ... [more ▼]

De très grandes quantités de déchets de construction et de démolition sont produites chaque année. Afin de faire bon usage des granulats recyclés (GR) dans le béton, il est très important d’étudier l’influence de la fraction granulaire et de l’origine des granulats recyclés sur leurs propriétés. Dans cette étude, les granulats recyclés de blocs (GR_Blocs) et de hourdis (GR_Hourdis) ont été concassés et puis séparés en 4 fractions granulaires (0/2, 2/6,3, 6,3/14, 14/20mm). Chaque fraction granulaire des GR a été caractérisée. Les résultats montrent que la teneur en pâte de ciment durcie des GR augmente lorsque la taille des particules diminue. Les sables recyclés possèdent ainsi des teneurs en pâte de ciment nettement plus élevées que les gravillons recyclés. Les sables recyclés possèdent en particulier un coefficient d’absorption d’eau très élevé par rapport aux gravillons recyclés. Les valeurs de teneur en pâte de ciment durcie obtenues pour les GR_Blocs sont plus faibles que celles mesurées sur les GR_Hourdis, ce qui provient d’une plus faible quantité de pâte de ciment initiale du bloc. Les résultats montrent que pour toutes les fractions des GR, les GR_Hourdis sont plus anguleux que les GR_Blocs. [less ▲]

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See detailBode, Nicolai und Elisa von der Recke: Korrespondenzen und Netzwerke
Leyh, Valérie ULg

in Kinzel, Till; Berghahn, Cord-Friedrich (Eds.) Johann Joachim Christoph Bode (1731-1793) - ein Aufklärer aus Braunschweig in den kulturellen Netzwerken seiner Zeit (2016)

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See detailContract Farming as a Determinant of Promoting Tea Marketing Channel for Small Producers in Phu Tho Province
Le Thi Kim, Oanh ULg; Vu Dinh, Ton; Tran Huu, Cuong et al

in Global Business Research Journals (GBRJ) (Ed.) Proceedings of the Doctoral Research Conference in Business Studies & Management Sciences (2016)

Making contracts between farmers and firms (contract farming, for short) plays an important role in establishing access to the agricultural markets for the small producers, especially in the developing ... [more ▼]

Making contracts between farmers and firms (contract farming, for short) plays an important role in establishing access to the agricultural markets for the small producers, especially in the developing and less developed countries. It is argued that contract farming provides farmers with the assured sale of their crops and agro-business firms with a steady supply of agricultural products required by the market. This paper focuses on analyzing benefits of tea producers through signing contract with firms. By using relevant research methods of verifying studying areas, making Participatory Rural Appraisal (PRA), and surveying farmers, the paper finds that although contract farmers receive lower fresh tea price in compared with the price received by non-contract farmers, they would have higher price stability and are provided with market guarantee mechanism. These benefits are really important in context of globalization and market liberalization with the demand for high quality and high value products. It is highly recommended that small farmers therefore should participate in the coordination model between farmers and firms in the process of tea production and marketing in Phu Tho Province, Vietnam. [less ▲]

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See detailLes documents officiels romains d’époque républicaine et du Principat d’Auguste
Famerie, Etienne ULg

in Pierangelo Buongirno (Ed.) Texte regenerieren, Kontexte rekonstruieren (2016)

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See detailSimultaneous Water Vapor and Dry Air Optical Path Length Measurements and Compensation with the Large Binocular Telescope Interferometer
Defrere, Denis ULg; Hinz, P.; Downey, E. et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2016)

The Large Binocular Telescope Interferometer uses a near-infrared camera to measure the optical path length variations between the two AO-corrected apertures and provide high-angular resolution ... [more ▼]

The Large Binocular Telescope Interferometer uses a near-infrared camera to measure the optical path length variations between the two AO-corrected apertures and provide high-angular resolution observations for all its science channels (1.5-13 microns). There is however a wavelength dependent component to the atmospheric turbulence, which can introduce optical path length errors when observing at a wavelength different from that of the fringe sensing camera. Water vapor in particular is highly dispersive and its effect must be taken into account for high-precision infrared interferometric observations as described previously for VLTI/MIDI or the Keck Interferometer Nuller. In this paper, we describe the new sensing approach that has been developed at the LBT to measure and monitor the optical path length fluctuations due to dry air and water vapor separately. After reviewing the current performance of the system for dry air seeing compensation, we present simultaneous H-, K-, and N-band observations that illustrate the feasibility of our feedforward approach to stabilize the path length fluctuations seen by the LBTI nuller. [less ▲]

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See detailLe Chèque Habitat en Région Wallonne: premier aperçu
Bourgeois, Marc ULg; Voisin, Fanny ULg

in Chroniques notariales. Volume 63 (2016)

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See detailA new index to measure the human well-being in Wallonia and its communes (South of Belgium)
Burny, Philippe ULg

in Petropoulos, D.; Kyriazopoulos, G. (Eds.) 1st International Conference of Development and Economy (ICODECON) 2-4 October 2015: The advantages and disadvantages of Economic Crises: Conference proceedings (2016)

In 2012, the Walloon Government ordered the Walloon Institute for Prospective, Evaluation and Statistics (IWEPS) to calculate five indexes in order to guide and evaluate the public actions, together with ... [more ▼]

In 2012, the Walloon Government ordered the Walloon Institute for Prospective, Evaluation and Statistics (IWEPS) to calculate five indexes in order to guide and evaluate the public actions, together with the GDP. The index for the conditions of human well-being (CWBI) is presently the first step in the elaboration of the wellbeing index. The methodology is the one used by the Council of Europe. Actually, the CWBI is calculated by using 60 basic indicators, gathered into 8 families. After normalisation, the CWBI is the arithmetic mean of the 60 basic indicators, each of them having the same weight. The CWBI was calculated for the 262 communes of Wallonia and varies from 0.428 to 0.674, with a regional mean of 0.572. An opposition between urban and rural communes clearly appears, the last ones having the best scores. Communes along the borders of Germany and Luxemburg have the highest indexes, while communes in the old industrial areas have the lowest scores. Employment, income, family relations and security are the factors which are the most narrowly linked to the CWBI. At the communal level, social and security expenses per capita have a significant and negative correlation coefficient with the CWBI. In the future, in order to elaborate a finer index, new data, up to now not directly available, will be collected at the communal level, about quantitative and qualitative aspects. [less ▲]

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See detailBiomass production and use of silvopastoral areas in northern Morocco
Chebli, Youssef ULg; Chentouf, M.; Hornick, Jean-Luc ULg et al

in Proceedings of the 12th International Conference on Goats (2016) (2016)

In Rif Mountain of Morocco, sylvopastoral systems satisfy the diverse needs of local population and represent the most important feed sources for goats. This system is under pressure due to climate change ... [more ▼]

In Rif Mountain of Morocco, sylvopastoral systems satisfy the diverse needs of local population and represent the most important feed sources for goats. This system is under pressure due to climate change and overgrazing. For a sustainable and integrated development of this area, it is essential to establish a resource assessment. This study aims to evaluate the pastoral production (biomass) and investigate the use of pasture in Rif Mountain (Loubar) exclusively used by goat herds. For biomass production, we used the method of the reference module. The surveys, on using pasture by breeders, were realized during the biomass evaluation period. The pastoral shrubs, mainly Cistus crispus, Cistus monspeliensis, Lavendula stoeches and Pistacia lentiscus, represent the most palatable species selected by goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by a poor floristic diversity (65 species) dominated by shrubs. The biomass produced was estimated at 373 kg dry matter per hectare composed for 63% by shrubs. For biomass production, significant differences were observed depending on the season and according to sampling sites. The continuous use of the same pasture for a long time can explain the low production estimated and appearance of unpalatable species, such as Arisarum vulgare, Daphne gnidium and Ranunculus sardous. In fact, due to the bad operating practices of pastoral resources, sylvopastoral areas will be less available and of lower quality. The reasonable use of these resources, including a reduction in grazing pressure, should be developed to ensure a better productivity and sustainability. [less ▲]

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

in Parmentier, Isabelle (Ed.) Etudes et bibliographies d'histoire environnementale (Belgique, Nord de la France, Afrique centrale). Actes des 2e RBel, Namur, décembre 2012 (2016)

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See detailContract farming application in the Vietnamese shrimp value chain
Ho, T. M. H.; Burny, Philippe ULg

in Petropoulos, D.; Kyriazopoulos, G. (Eds.) 2nd International Conference of Development and Economy (ICODECON) 9-12 June 2016 : book of abstracts (2016)

Shrimp value chain in Vietnam functions with a large number of farmers. They stayed in the weakest position in the chain due to their small individual scale with an average land of about 0.5 ha/farm, and ... [more ▼]

Shrimp value chain in Vietnam functions with a large number of farmers. They stayed in the weakest position in the chain due to their small individual scale with an average land of about 0.5 ha/farm, and low skills [1]. As a leader and holding the strongest power in the shrimp value chain, the processors determine shrimp prices and set up requirements of shrimp quality and size in the market though quality control has not been completely implemented due to the limitations of financial capital, knowledge, awareness, as well as the quality of raw material supplied by collectors and farmers. In order to help the shrimp sector working more efficiently, the Vietnamese government brought together shrimp farmers and plant processors through a farming contract. Two years after this application, the contract farming model failed due to the floor price mechanism, risk sharing, small scale of the model while there are excess suppliers in the market, administrative misconception and inefficient public management. As a result, farmers still stay at the weakest position and the shrimp sector could not improve its product safety to adapt the requirement of import markets. The study results recommend necessarily a planning and projection of shrimp production zones, re-organizing shrimp farmers into legal teams or groups or cooperatives to increase the size of the existing shrimp cultivation units in Vietnam. [less ▲]

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See detailA repair quality control with elastic waves based methods vs. substrate quality
Garbacz, Andrzej; Piotrowski, Tomasz; Courard, Luc ULg et al

in Dehn; Beushausen, Hans (Eds.) Concrete Repair, Rehabilitation and Retrofitting IV (2016)

An adhesion in repair system is one of the most important factors that affect the repair efficiency. The elaboration of reliable nondestructive method for an adhesion mapping is one of the most important ... [more ▼]

An adhesion in repair system is one of the most important factors that affect the repair efficiency. The elaboration of reliable nondestructive method for an adhesion mapping is one of the most important tasks. A majority of NDT methods mentioned in EN 1504-10 and ACI Concrete Repair Manual for assessment of concrete structures are based on propagation of stress waves. However, these investigations are rarely focused on evaluation of bond strength. Repair system is difficult to test with NDT methods because of many factors influencing stress wave propagation. In this paper the effect of a quality of concrete substrate on propagation of stress waves in repair system and their influence on possibility of estimation of the bond strength is discussed. [less ▲]

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See detailIntentions d'implémentation et procrastination chez les étudiants.
Stassart, Céline ULg; Potdevin, Benoit; Etienne, Anne-Marie ULg

in Évolutions sociales, innovations et politiques: Nouvelles questions et nouveaux enjeux pour la psychologie de la santé, Actes du Congrès de l’AFPSA, tome 2, (2016)

Introduction : La procrastination est définie comme une tendance à reporter ce qui est nécessaire pour atteindre un objectif. Ainsi, la procrastination concerne une intention qui ne se traduit pas en ... [more ▼]

Introduction : La procrastination est définie comme une tendance à reporter ce qui est nécessaire pour atteindre un objectif. Ainsi, la procrastination concerne une intention qui ne se traduit pas en action. L’intention d’implémentation se définit notamment à travers le désengagement face au problème, l’orientation vers les buts, et l’activation des ressources et cette étude examine la part explicative de ces trois dimensions dans le processus de procrastination. Méthodologie : Un échantillon de 197 étudiants ont complété les versions françaises du Solution Focused Inventory (SFI), et du Procrastination Assessment Scale for Students (PASS). Résultats : L’intention d’implémentation intervient dans 32% de la variance de la procrastination. Le désengagement face au problème et l’orientation vers les buts expliquent de manière significative la fréquence de procrastination.  Conclusion : Le processus de procrastination pourrait en partie être expliqué par manque d’intentions d’implémentation, plus particulièrement par une difficulté à se désengager du problème (tendance à être bloqué dans sa réflexion en se focalisant davantage sur les problèmes) et à s’orienter vers les buts (présenter des difficultés à mettre au point des plans d’action efficaces). [less ▲]

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See detailDe l’Aurignacien au Gravettien dans le Nord-Ouest européen
Touzé, Olivier ULg

in Chirica, Vasile; Ichim, Cristian (Eds.) Les Aurignaciens. Leur création matérielle et spirituelle (2016)

The study of the Early Upper Palaeolithic in Northwestern Europe faces several difficulties associated with the qualitative and quantitative state of the documentation. These limits constrain the ... [more ▼]

The study of the Early Upper Palaeolithic in Northwestern Europe faces several difficulties associated with the qualitative and quantitative state of the documentation. These limits constrain the precision of the analyses, though the study of this period benefits from a dynamic of research based on the preventive and programmed archaeologies, and the reappraisal of old collections. Recent data and current work on several sites demonstrate that Northwestern Europe can fully contribute to the discussions on this period, and in particular to the question of the transition between the Aurignacian and the Gravettian. Thus, we propose here an overview of the period extending from the Recent Aurignacian to the Early Gravettian, in order to propose some thoughts on this pivotal phase of the Upper Palaeolithic. During this particular period, the European Northwest indeed distinguishes itself by the appearance of the Maisierian, an original lithic tradition whose technical system, devoid of elements peculiar to the Aurignacian traditions, announces the development of Gravettian norms. [less ▲]

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See detailIs the venice lagoon noisy? First passive listening monitoring of the venice lagoon: Possible effects on the typical fish community
Bolgan, Marta ULg; Picciulin, Marta; Codarin, Antonio et al

in Advances in Experimental Medicine and Biology (2016)

Three passive listening surveys have been carried out in two of the three Venice lagoon tide inlets and inside the Venice island. The spectral content and the intensity level of the underwater noise as ... [more ▼]

Three passive listening surveys have been carried out in two of the three Venice lagoon tide inlets and inside the Venice island. The spectral content and the intensity level of the underwater noise as well as the presence or absence of Sciaena umbra and the distribution of its different sound patterns have been investigated in all the recording sites. The passive listening proved to be successful in detecting S. umbra drumming sounds in both Venice lagoon tide inlets. Our results indicate that the spectral content and the level of underwater noise pollution in the Venice lagoon could affect fish acoustic communication. © Springer Science+Business Media New York 2016. [less ▲]

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See detailFundamental approach for the concept of concrete repair compatibility
Courard, Luc ULg; Bissonnette, Benoît; Garbacz, Andrzej

in Dehn, Frank (Ed.) Concrete Repair, Rehabilitation and Retrofitting IV (2016)

Before being translated in terms of physical, mechanical and chemical of materials, the initial step for evaluating compatibility is interface creation. The thermodynamic properties of the materials as ... [more ▼]

Before being translated in terms of physical, mechanical and chemical of materials, the initial step for evaluating compatibility is interface creation. The thermodynamic properties of the materials as well as transport mechanisms – diffusion, capillary succion – at the interface and roughness of the concrete substrate are acting from the beginning and influencing the durability of the bond strength. A review of the main parameters influencing bond development is presented on the base of the equilibrium of the surface free ener-gies of liquid and solid, applied to the concept of repair mortars, coating and hydrophobic treatments [less ▲]

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See detailNoWaste: waste heat re-use for greener truck
Bettoja, Federica; Perosino, Andrea; Lemort, Vincent ULg et al

in Proceedings of 6th Transport Research Arena (2016)

The present paper summarizes the key points of the European NoWaste Project, which aims at developing Rankine cycle systems for integration into long-haul trucks with the aim to convert the waste heat of ... [more ▼]

The present paper summarizes the key points of the European NoWaste Project, which aims at developing Rankine cycle systems for integration into long-haul trucks with the aim to convert the waste heat of the exhaust gases into useful energy usable in mechanical or electrical form. The first part of the paper describes the ORC system architectures defined for two different truck engines: one with EGR and the other one without EGR. For both engines, different cycle configurations and working fluids are compared in terms of energy performance and technical constraints. For both ORC systems, the paper shows the final technical choices made in terms of main components: boiler, condenser, expander and pump. The second part of the paper presents preliminary experimental results carried out on demonstrators of the two ORC systems. The objectives of these tests were to check the performance announced by the components’ manufacturers. Finally, the last part of the paper compares the cost of both systems. [less ▲]

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

in Glessgen, Martin; Trotter, David (Eds.) La régionalité lexicale au Moyen Âge. Colloque international en l’honneur du 70e anniversaire de Gilles Roques (2016)

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See detailThe Cybernetic Tower by Nicolas Schöffer: the conservator’s role between continuity and historicity of the production
D'Haenens, Manon ULg

in Hermens, E, Robertson, Fr. (Ed.) Authenticity in Transition, Changing practices in art making and conservation, Proceedings of the NeCCAR Conference, Glasgow december 2014 (2016)

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See detailAutonomes ou dépendantes ? Les Filles de la Charité en principauté de Liège, XVIIe-XIXe siècle
Henneau, Marie-Elisabeth ULg

in Brejon de Lavergnée, Matthieu (Ed.) Des Filles de la Charité aux sœurs de Saint-Vincent-de-Paul : quatre siècles de « cornettes » (XVIIe-XXe siècle) (2016)

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See detailTowards a more sustainable development model in Belgium: the role of organic farming
Burny, Philippe ULg

in Petropoulos, D.; Kyriazopoulos, G. (Eds.) 2nd International Conference of Development and Economy (ICODECON) 9-12 June 2016 : book of abstracts (2016)

During the last years, organic farming considerably developed in Belgium. In 2014, it represented 5% of the total agricultural area and 4.5% of the number of farms [1]. Organic farming is mainly developed ... [more ▼]

During the last years, organic farming considerably developed in Belgium. In 2014, it represented 5% of the total agricultural area and 4.5% of the number of farms [1]. Organic farming is mainly developed in Wallonia where its share of the agricultural area exceeded 10% in 2014. Pastures for bovine production (meat and milk) and general crops (mainly cereals) are the most common cultivated areas. Poultry, eggs and vegetables recorded the highest increases. This success is partly the result of a strategic plan for the development of organic farming in Wallonia towards 2020 [2] and of remarkable financial support for the farmers [3]. More than 8,400 food and non-food organic products are available for the consumers. The number of prepared and processed food products is increasing. The market share of food organic products is still low, but continuously increasing: 1.3% in 2008, 2.3% in 2014. Remarkably, the expenses for organic food products still increased by 50% in 2014, while the total expenses for common food products declined for the first time since many years. The most important expenses per capita concern dairy products (5.40€), vegetables (4.74€), fruits (3.71€) and bovine and pork meat (2.84€). The main locations where food organic products are bought are supermarkets (45%) and specialized shops (31%). Families with children and high income and retired people with high income count for more than 5% of the expenses for organic food, while single persons aged over 40 are the category which spend the highest share of its income (4.1%) for organic food. In such conditions, organic farming is an important topic of the strategic plan for sustainable development presently proposed for discussion to the Walloon citizens. [less ▲]

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See detailComparative analysis of agricultural production systems performances: case of millet and sorghum in Mali
Sissoko, Penda ULg; Lebailly, Philippe ULg

in Kovacevic, Dusan (Ed.) VII International Scientific Agriculture Symposium “AGROSYM 2016”, Jahorina, October 06-09, 2016 : book of proceedings (2016)

This study was carried out to compare the performances of agricultural production systems based on millet and sorghum in Sahelian and sudano-Sahelian areas of Mali in 2014. The two systems compared were ... [more ▼]

This study was carried out to compare the performances of agricultural production systems based on millet and sorghum in Sahelian and sudano-Sahelian areas of Mali in 2014. The two systems compared were production techniques of micro-dosing fertilizer and traditional cropping called conventional cropping system of millet and sorghum. One hundred and eight farmers (108) were selected and interviewed in the two areas. The techniques of micro-dosing used were manual and mechanical fertilizers distribution. The tools used for analysis were descriptive statistics (frequency, average, standard deviation) and analytical method (ANOVA). The software’s used were EXCEL, SPSS 20 and STAGRAPHICS. The results of this survey show significant differences of mean at the plots levels. The production system based on fertilizer micro-dosing techniques is more efficient than traditional system of millet and sorghum through high yielding, lowing costs of fertilizers, diminution of farming operation work times and, high net profit at the plot level. The percent of yield obtained with manual technique is 41% and 52% with mechanical distribution (placement) for millet and respectively for sorghum 45% and 56%. The calculated cost ratio values (CRV>1) show that micro-dosing techniques are profitable for millet and sorghum production. [less ▲]

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