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See detailBehavior of steel frame structures under natural fire and collapse mechanisms during cooling
Gernay, Thomas ULiege; Gamba, Antonio; Elhami Khorasani, Negar

Conference (2018, April 20)

Structural fire engineering has long relied on a prescriptive approach based on isolated member behavior under continuously heating standard fire. By definition, this approach does not allow comprehending ... [more ▼]

Structural fire engineering has long relied on a prescriptive approach based on isolated member behavior under continuously heating standard fire. By definition, this approach does not allow comprehending the effects of interaction between members of a complete structure nor the effects of real fire exposure. Yet, such effects can have a significant influence on the response of real buildings to fire. Notably, when a structure has survived a fully developed fire, the cooling phase that inevitably follows generates effects that may endanger the structure stability. This has been attested by real structural collapses and poses a specific threat to firefighters. However, the behavior of structures under natural fire and the causes of failure during cooling are still not well understood. This research investigates the response of steel-framed structures to natural fires with the aim to analyze the possible collapse mechanisms during cooling. Numerical simulations by nonlinear finite element method are conducted for different fire scenarios and structural designs. The simulations model the thermo-mechanical behavior of the frames accounting for the interaction between members during the entire fire duration until burnout. Different collapse mechanisms during cooling are highlighted and discussed, including connection failure and progressive collapse under localized fire. In the latter case, collapse of members not directly affected by the fire occurs during the cooling phase. These mechanisms result from a complex combination of several factors, such as the recovery of thermal elongation, the recovery of stiffness, and the prior development of permanent strains in the heated members. The results show that steel-framed structures are subject to collapse during the cooling phase of natural fires. Therefore, natural fires with heating-cooling sequences represent a loading case that should be considered in structural fire analyses and could lead to specific design provisions to prevent the occurrence of collapse during cooling. [less ▲]

Detailed reference viewed: 94 (5 ULiège)
See detailAvowal and recognition in psychopathology: philosophical issues about anosognosia
Englebert, Jérôme ULiege

Conference (2018, April 18)

Detailed reference viewed: 35 (4 ULiège)
See detailRéagir à l’archive. Sartre et la radio
Hamers, Jérémy ULiege; Cormann, Grégory ULiege

Scientific conference (2018, March 28)

Les études consacrées aux interventions de Sartre dans les médias dressent le portrait d’un philosophe frileux à l’égard de la radio, un médium réputé « à sens unique » conformément aux commentaires qu’il ... [more ▼]

Les études consacrées aux interventions de Sartre dans les médias dressent le portrait d’un philosophe frileux à l’égard de la radio, un médium réputé « à sens unique » conformément aux commentaires qu’il en aurait livré dans sa Critique de la raison dialectique. Il n’est pas étonnant dès lors que ces études se satisfont d’une approche essentiellement textuelle de ces interventions et manquent ainsi les usages singuliers que Sartre a fait de ses passages en radio. Partant d’extraits d’interventions enregistrées entre 1946 et 1973, la conférence et projection sonore Réagir à l’archive. Sartre et la radio entend contester l’image d’un philosophe rétif au médium radiophonique tout en dépassant la réduction de ses interventions sonores à leur seule retranscription textuelle. Le rythme des réponses du penseur, leur longueur, le jeu avec l’interviewer dont elles portent les traces, mais aussi les multiples références au direct de l’entretien radiophonique et à la réalité du moment de la diffusion témoignent en effet d’un usage extrêmement lucide d’un médium dont Sartre a tenté d’exploiter toutes les potentialités intellectuelles et politiques propres. On découvrira ainsi qu’avant d’être un matériau d’archive effacé par le texte, les interventions radiodiffusées du philosophe ont été autant de tentatives de (se) jouer de la spécificité radiophonique pour inscrire la pensée critique au cœur même du dispositif médiatique. [less ▲]

Detailed reference viewed: 7 (2 ULiège)
See detailSchizophrénie et perspective en première personne
Englebert, Jérôme ULiege; Valentiny, Caroline

Scientific conference (2018, February 28)

Detailed reference viewed: 24 (6 ULiège)
See detailLe thymus, d'un vestige de l'évolution à un organe essentiel pour la survie de l'individu et de l'espèce
Geenen, Vincent ULiege

Scientific conference (2018, February 28)

Detailed reference viewed: 16 (1 ULiège)
See detailLe droit européen peut-il sauver votre litige en droit des affaires?
Van Cleynenbreugel, Pieter ULiege

Conference (2018, February 23)

Detailed reference viewed: 13 (0 ULiège)
See detailLe travailleur du futur et la loi
Kéfer, Fabienne ULiege

Conference given outside the academic context (2018)

Le travailleur du futur et la loi A quoi ressemble le travailleur de demain dans un monde où règnent toujours davantage les technologies de l’information ? Cette question est envisagée sous deux angles ... [more ▼]

Le travailleur du futur et la loi A quoi ressemble le travailleur de demain dans un monde où règnent toujours davantage les technologies de l’information ? Cette question est envisagée sous deux angles. Tout d’abord, l’économie numérique a fait naitre de nouvelles formes de production et d’emploi, telles que « l’économie des plateformes » (Uber, Deliveroo, ….). Celle-ci présente divers atouts pour les entreprises et pour les travailleurs, notamment en termes de flexibilité, mais elles est aussi la source de nouvelles formes de travail précaire. Le travailleur de demain est-il un travailleur du numérique sans protection sociale ? Le deuxième angle est celui du travailleur hyperconnecté. Faut-il envisager de créer un droit à la déconnexion ? [less ▲]

Detailed reference viewed: 130 (3 ULiège)
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See detailDissolved Si export: Impact of increased water fluxes through soil
Ronchi, Bénédicta; Dassargues, Alain ULiege; Batelaan, Okke

in Geoderma (2018), 312

Intense deforestation over large areas is an important component of global models which aim to quantify the transfer of terrestrial siliceous material from the continent to the coast. Hence, there is a ... [more ▼]

Intense deforestation over large areas is an important component of global models which aim to quantify the transfer of terrestrial siliceous material from the continent to the coast. Hence, there is a need for improved understanding of land use impact on Si export. We present a model that simulates the kinetic dissolution of biogenic Si in a forest soil. A kinetic equation was calibrated based on leaching experiments of soil columns at constant water flux. The calibrated equation was then used to simulate the Si export from a forest soil under varying atmospheric conditions and provided realistic Si concentrations in soil water. The same model was used to simulate the impact of reduced evapotranspiration due to deforestation and consequently increased soil water fluxes on the Si export. Results showed that lower amounts of biogenic silicon dissolved and higher Si fluxes were released to the system once water flux increased. The use of the kinetic dissolution equation for biogenic Si improves our understanding and the modelling of the Si release from soils towards the hydrographic system. [less ▲]

Detailed reference viewed: 20 (4 ULiège)
See detailMéthode phénoménologique et perspective en première personne
Englebert, Jérôme ULiege

Scientific conference (2018, February 06)

Detailed reference viewed: 20 (3 ULiège)
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See detailDes indices pour la définition de l'état des masses d'eau en milieu marin, mises au point, applications et aide à la gestion
Gobert, Sylvie ULiege; Richir, Jonathan ULiege

in L’eau pour le développement La Gestion Intégrée des Ressources en Eau dans les Pays en développement (2018, February)

Comme les écosystèmes dulçaquicoles, les écosystèmes marins sont soumis à une pression humaine croissante qui altère la qualité de l’eau et les communautés aquatiques. Près de 98 pourcents de l’eau de ... [more ▼]

Comme les écosystèmes dulçaquicoles, les écosystèmes marins sont soumis à une pression humaine croissante qui altère la qualité de l’eau et les communautés aquatiques. Près de 98 pourcents de l’eau de notre planète bleue est contenue dans les océans qui constituent le réceptacle final de tout ce que nous rejetons comme déchets (volontairement ou non). Moins accessible, les océans sont méconnus, souvent oubliés ou négligés et considérés comme une zone inépuisable et où tout se dilue ; actuellement encore 80% des eaux usées sont rejetées en mer sans traitement préalable, à peine 2 % des surfaces marines sont protégées. La Méditerranée est particulière à plus d’un égard, bassin de concentration, de faible surface (1% des océans) abritant pourtant plus de 10% de la biodiversité mondiale. Cette petite mer est un modèle pour les océanographes : en mesurant ce qui s’y passe, nous pouvons prédire ce que se déroulera à court ou moyen terme dans le reste des océans. Le laboratoire d’Océanologie est activement impliqué depuis une quinzaine d’années dans la mise au point d’indice de la qualité des masses d’eau côtières. Ces indices sont construits sur base des connaissances du milieu (variations naturelles), par la mesure des niveaux de contamination et des effets (observation et contamination en mésocosme) de cette pollution sur les communautés. Nous avons développé et validé des indices biologiques (PREI : Posidonia Rapid and Easy Index, ICAR Indice Caulerpa cylindracea ; espèce envahissante), de pollution (TEPI : Trace Element Pollution Index, TESVI : Trace Element Spatial Variation Index), de qualité paysagère (LIMA LIttoral MArin) … Ces indices sont utilisés actuellement dans le cadre de la DCE (Directive Cadre Eau), la DCSMM (Directive Cadre Stratégie pour le Milieu Marin) et dans des réseaux de surveillance en Méditerranée, ils sont un relais et un moyen de communication entre les scientifiques et les politiques, les gestionnaires. L’exportation et l’apprentissage de l’utilisation de ces indices sont un atout pour une gestion globale de l’eau à l’échelle de la Méditerranée. Leurs applications sur l’ensemble de la façade méditerranéenne ont, entre autre, mis en évidence l’impact positif de l’application de directives européennes en matière de gestion des eaux par rapport aux côtes de Nord de l’Afrique. [less ▲]

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See detailComparison of chlordecone and NDL-PCB decontamination dynamics in growing male kids after cessation of oral exposure: Is there a potential to decrease the body levels of these pollutants by dietary supplementation of activated carbon or paraffin oil?
Lastel, Marie-Laure; Fournier, Agnès; Jurjanz, Stefan et al

in Chemosphere (2018), 193

Sixteen weaned male Alpine kids (Capra hircus) were subjected to a 21-day oral daily exposure of 0.05 mg kg 1 BW. d 1 of chlordecone (CLD) and 0.30 mg kg 1 BW. d 1 of each non-dioxin-like polychlorinated ... [more ▼]

Sixteen weaned male Alpine kids (Capra hircus) were subjected to a 21-day oral daily exposure of 0.05 mg kg 1 BW. d 1 of chlordecone (CLD) and 0.30 mg kg 1 BW. d 1 of each non-dioxin-like polychlorinated biphenyls (NDL-PCBs, congeners 28, 52, 101, 138, 153 and 180). Four kids, identified as the CONTA group, were slaughtered at the end of the exposure, while the remaining animals (n ¼ 12) were fed with specific diets for an additional 21-day decontamination period before slaughtering. Kids from the DECONTA (n ¼ 4) group were fed a control diet, while those from the AC10% and PO8% group received pellets supplemented with 10% activated carbon (AC) and 8% paraffin oil (PO), respectively. CLD and NDL-PCB levels in blood, liver, peri-renal fat and muscles from different groups were analysed to compare the decontamination dynamics of the pollutants and to determine the efficiency of AC and PO to decrease the body levels of pollutants. After the decontamination period, the CLD levels considerably decreased (more than 60%) in blood, liver, muscles and fat. Concerning NDL-PCBs, the decontamination process was much lower. Overall, CLD appeared to be less retained in kids’ organism compared with NDL-PCBs, and the decontamination dynamics of these pollutants appeared to be different because of their specific physicochemical properties and lipophilicity. Furthermore, the dietary supplementation with AC or PO did not significantly affect the decontamination dynamics. [less ▲]

Detailed reference viewed: 11 (2 ULiège)
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See detailArtification de l'industrie culturelle et culture populaire
Moreau, Timothée ULiege

Conference (2018, January 25)

Detailed reference viewed: 76 (1 ULiège)
See detailSchizophrénie et intersubjectivité : Propositions pour une phénoménologie relationnelle
Englebert, Jérôme ULiege

Scientific conference (2018, January 25)

Detailed reference viewed: 33 (6 ULiège)
See detailHistoire politique de la construction européenne
Grandjean, Geoffrey ULiege

Learning material (2018)

Detailed reference viewed: 118 (22 ULiège)
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See detailCritical review of surface-enhanced Raman spectroscopy applications in the pharmaceutical field
Cailletaud, Johan ULiege; De Bleye, Charlotte ULiege; Dumont, Elodie ULiege et al

in Journal of Pharmaceutical & Biomedical Analysis (2018), 147

Surface-enhanced Raman spectroscopy (SERS) is a sensitive analytical tool used in the pharmaceutical field in recent years. SERS keeps all the advantages of classical Raman spectroscopy while being is ... [more ▼]

Surface-enhanced Raman spectroscopy (SERS) is a sensitive analytical tool used in the pharmaceutical field in recent years. SERS keeps all the advantages of classical Raman spectroscopy while being is more sensitive allowing its use for the detection and the quantification of low-dose substances contained in pharmaceutical samples. However, the analytical performance of SERS is limited due to the difficulty to implement a quantitative methodology correctly validated. Nevertheless, some studies reported the development of SERS quantitative methods especially in pharmaceutical approaches. In this context, this review presents the main concepts of the SERS technique. The different steps that need to be applied to develop a SERS quantitative method are also deeply described. The last part of the present manuscript gives a critical overview of the different SERS pharmaceutical applications that were developed for a non-exhaustive list of pharmaceutical compounds with the aim to highlights the validation criteria for each application. [less ▲]

Detailed reference viewed: 97 (17 ULiège)
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See detailMucoadhesive nanostructured polyelectrolytes complexes modulate the intestinal permeability of methotrexate
Boni, Fernanda Isadora; Almeida, Andreia; Lechanteur, Anna ULiege et al

in European Journal of Pharmaceutical Sciences (2018), 111

Detailed reference viewed: 20 (3 ULiège)
See detailRegenerative and Positive Impact Architecture: Learning from Case Studies
Attia, Shady ULiege

Book published by Springer International Publishing (2018)

Regenerative design holds great promise for a new era of sustainable and positive impact architecture, sparking considerable interest among architects, building professionals and their clients. Until now ... [more ▼]

Regenerative design holds great promise for a new era of sustainable and positive impact architecture, sparking considerable interest among architects, building professionals and their clients. Until now there are no green buildings with an overall positive impact on environment and health. In this regard, the professional and scientific potential of regenerative architecture can only be fully realized by the setting a design framework that guides designers during projects design, construction and operation. This book introduces readers to key concepts of circularity in the built environment, highlight best practices, introduce opportunities to create value learn from real cutting edge case studies. In this book, we present a novel framework for regenerative building design that can be applied to future constructions based on professional expertise and exposure, towards healthy, resource efficient and green buildings in the AEC industry. We compare four state of the art buildings to address the critical principles, strategies and steps in the transition from the negative impact reduction architecture to the positive impact regenerative architecture, utilizing life cycle analysis. The case studies analysis and comparison can serve as an inspiring eye opener and provide a vision for architects and building professionals in the fields of high performance buildings, resource centered thinking and regenerative architecture. [less ▲]

Detailed reference viewed: 83 (3 ULiège)