Last 7 days
Bookmark and Share    
Full Text
Peer Reviewed
See detailHow to check analytically the robustness of a building submitted to a column loss - A premiere
Huvelle, Clara ULg; Jaspart, Jean-Pierre ULg; Demonceau, Jean-François ULg

in Proceedings of Eurosteel 2014 conference (2014, September)

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under an exceptional event. According to Eurocodes and some ... [more ▼]

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under an exceptional event. According to Eurocodes and some other national design codes, the structural integrity of civil engineering structures should be guaranteed through appropriate measures and one way to guarantee it is to ensure an appropriate robustness of the structure, which may be defined as the ability of a structure to remain globally stable in case of exceptional event leading to local damages. However, although global design approaches are provided in modern codes and standards, no easy-to-apply practical guidelines are provided. The present paper reflects recent researches realised at the University of Liege with the scope of proposing such practical guidelines for the activation of alternative load path in the structure, design strategy generally leading to the most economical solutions. [less ▲]

Detailed reference viewed: 32 (13 ULg)
Full Text
See detailThe Belgian Reform of Mental Health: Changing the Face of Psychiatric Hospitals
Thunus, Sophie ULg

Conference (2014, September)

This paper focuses on the ongoing reform of psychiatric and mental health care delivery in Belgium. It starts by mentioning particularities of the system’s development, then it defines the reform’s ... [more ▼]

This paper focuses on the ongoing reform of psychiatric and mental health care delivery in Belgium. It starts by mentioning particularities of the system’s development, then it defines the reform’s objectives and policy instruments used to reach these objectives and, finally, it indicates specific issues and outcomes resulting from the implementing. [less ▲]

Detailed reference viewed: 19 (5 ULg)
Full Text
Peer Reviewed
See detailDetection of Angiostrongylus vasorum in the bronchoalveolar lavage fluid or faeces of coughing and healthy dogs in Belgium.
Canonne-Guibert, Morgane ULg; Roels, Elodie ULg; Caron, Yannick ULg et al

in Proceedings of the 24th Ecvim Meeting, Mainz, Germany - 4-6 September 2014 (2014, September)

Detailed reference viewed: 7 (2 ULg)
Full Text
See detailEvaluation de la pertinence du couplage entre le modèle régional MAR et le modèle de calotte glaciaire GRISLI sur le Groenland
Wyard, Coraline ULg

Master's dissertation (2014)

During the two last decades, the Greenland ice sheet (GrIs) contribution to the global mean sea level (GMSL) rise has significantly increased. In the future, difficulties remain to assess the GrIs ... [more ▼]

During the two last decades, the Greenland ice sheet (GrIs) contribution to the global mean sea level (GMSL) rise has significantly increased. In the future, difficulties remain to assess the GrIs contribution to GMSL rise because of large uncertainties linked to the feedback between the surface mass balance (SMB) and the elevation of the GrIs. In 2013, Xavier Fettweis, my promoter, has coupled a regional climate model (RCM), the model MAR, with an ice sheet model (ISM), the model GRISLI, in order to account of this feedback and, in this way, to improve the assessment of the future GrIs contribution to the GMSL rise. The aim of this study is to assess the pertinence of the MAR−GRISLI coupling which requires long computation time. Nine imulations were carried out with GRISLI. Six of these simulations consisted in forcing GRISLI with several present days MAR outputs (SMB and surface temperature) in order to identify the GRISLI biases. The three last simulations consisted in forcing GRISLI until 2100 with future non-coupled, coupled and modified non- coupled MAR outputs in order to find a technique to avoid the coupling. The results show that initial conditions need to be improved and that the ice flow velocities required recalibration because an abnormal present-day thickening of the GrIs margins. Ice calving only depends on ice sheet extension because of constant ice flow velocities. The MAR−GRISLI coupling can be avoided until the middle of the 2080s. Beyond these years, the SMB correction is too large so that the thinning of the GrIs margins is overestimated. In a further study, the SMB correction could be reduced to avoid the MAR−GRISLI coupling over longer periods. GRISLI could be improved or replaced by a more complex ISM with dynamic ice flow velocities to enhance the results. [less ▲]

Detailed reference viewed: 23 (7 ULg)
Full Text
See detailMonetary Policy
Artige, Lionel ULg

Learning material (2014)

Detailed reference viewed: 13 (0 ULg)
Full Text
Peer Reviewed
See detailAccurate monitoring of the rumination behaviour of cattle using IMU signals from a mobile device
Andriamandroso, Andriamasinoro ULg; Lebeau, Frédéric ULg; Bindelle, Jérôme ULg

in Hopkins, A; Collins, RP; Fraser, MD (Eds.) et al EGF at 50: The Future of European Grasslands. Proceedings of the 25th General Meeting of the European Grassland Federation. (2014, September)

Improving the monitoring of rumination in cattle could help in assessing of the welfare status and their risk of acidosis. In this work, the monitoring of cattle’s behaviour was performed using the ... [more ▼]

Improving the monitoring of rumination in cattle could help in assessing of the welfare status and their risk of acidosis. In this work, the monitoring of cattle’s behaviour was performed using the inertial measurement unit (IMU) present in smartphones mounted on the neck of cows. The processing of both time and frequency domains of the IMU signals was capable to detect accurately the main behaviours (grazing, rumination and other) and highlight the characteristics of the rumination process. The algorithm for analysis of rumination was more accurate for grazing cattle than for silage-fed cattle in stables. [less ▲]

Detailed reference viewed: 24 (10 ULg)
See detailPractical design of a nonlinear tuned vibration absorber
Grappasonni, Chiara ULg; Habib, Giuseppe ULg; Detroux, Thibaut ULg et al

in Proceedings of the ISMA 2014 conference (2014, September)

The aim of the paper is to develop a new nonlinear tuned vibration absorber (NLTVA) capable of mitigating the vibrations of nonlinear systems which are known to exhibit frequency-energy-dependent ... [more ▼]

The aim of the paper is to develop a new nonlinear tuned vibration absorber (NLTVA) capable of mitigating the vibrations of nonlinear systems which are known to exhibit frequency-energy-dependent oscillations. A nonlinear generalization of Den Hartog’s equal-peak method is proposed to ensure equal peaks in the nonlinear frequency response for a large range of forcing amplitudes. An analytical tuning procedure is developed and provides the load-deflection characteristic of the NLTVA. Based on this prescribed relation, the NLTVA design is performed by two different approaches, namely thanks to (i) analytical formulas of uniform cantilever and doubly-clamped beams and (ii) numerical shape optimization of beams with varying width and thickness. A primary system composed of a cantilever beam with a geometrically nonlinear component at its free end serves to illustrate the proposed methodology. [less ▲]

Detailed reference viewed: 15 (2 ULg)
Full Text
Peer Reviewed
See detailCIRCULAR TUBE COLUMNS IN HIGH STRENGTH STEEL: Economical solutions for building frames
Hoang, Van Long ULg; Jaspart, Jean-Pierre ULg; Demonceau, Jean-François ULg

in Landolfo, Raffaele; Mazzolani, Frederico (Eds.) Proceeding of the 7th European conference on steel and composite structures (Eurosteel 2014) (2014, September)

Detailed reference viewed: 28 (11 ULg)
Full Text
Peer Reviewed
See detailBOLTED END-PLATE BEAM-TO-COLUMN JOINTS USING HAMMERHEAD BEAMS: Experimental tests and proposal of design guidelines
Demonceau, Jean-François ULg; Hoang, Van Long ULg; Jaspart, Jean-Pierre ULg

in Landolfo, Raffaele; Mazzolani, Frederico (Eds.) Proceeding of the 7th European conference on steel and composite structures (Eurosteel 2014) (2014, September)

Detailed reference viewed: 24 (5 ULg)
Full Text
See detailMéthodologie de l'enquête
Jacquemain, Marc ULg

Learning material (2014)

Le cours présente sous la forme d'environ 350 slides assez détaillés, les grandes notions relatives à l'enquête par questionnaire : 1) Qu'est-ce qui différencie l'enquête des autres modes d'investigation ... [more ▼]

Le cours présente sous la forme d'environ 350 slides assez détaillés, les grandes notions relatives à l'enquête par questionnaire : 1) Qu'est-ce qui différencie l'enquête des autres modes d'investigation ? 2) Comment produire le questionnaire le moins biaisé possible ? 3) Quels sont les grands principes et les grandes techniques de l'échantillonnage ? 4) Que usage des résultats (graphiques, modèles, analyses). [less ▲]

Detailed reference viewed: 108 (47 ULg)
Full Text
See detailLe test conflictuel - un colosse aux pieds d'argile?
Wautelet, Patrick ULg

Conference (2014, September)

Cette présentation a servi de support à une communication tendant à faire le point sur l'article 27 du Code de droit international privé. La communication avait comme objectif de démontrer les difficultés ... [more ▼]

Cette présentation a servi de support à une communication tendant à faire le point sur l'article 27 du Code de droit international privé. La communication avait comme objectif de démontrer les difficultés du régime actuel d'accueil en Belgique des actes étrangers en Belgique et à formuler des pistes de solution pour améliorer ce régime. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Full Text
See detailCinq leçons de sociologie des idéologies
Jacquemain, Marc ULg

Learning material (2014)

A travers cinq leçons (environ sept à huit séances), illustrées par des slides, le cours présente différents points de vue sur l'idéologie, chacun emprunté à un auteur différent : Marx, Ricoeur, Boltanski ... [more ▼]

A travers cinq leçons (environ sept à huit séances), illustrées par des slides, le cours présente différents points de vue sur l'idéologie, chacun emprunté à un auteur différent : Marx, Ricoeur, Boltanski, Elster, Orwell. Il s'agit de montrer en multipliant les angles d'approche que les perceptions du monde social sont fondamentalement construites et qu'elles s'inscrivent dans les rapports conflictuels qui caractérisent toute société. [less ▲]

Detailed reference viewed: 63 (35 ULg)
Full Text
Peer Reviewed
See detailVascular endothelial growth factor : a blood biomarker in canine pulmonary fibrosis.
Roels, Elodie ULg; Krafft, Emilie ULg; Heikkilä, H.P. et al

in Proceedings of the 24th Ecvim Meeting, Mainz, Germany - 4-6 September 2014 (2014, September)

Detailed reference viewed: 2 (0 ULg)
Full Text
See detailLa stratégie chinoise en Amérique latine : entre coopération et hégémonie. Le cas du Brésil
Wintgens, Sophie ULg

in Revue de la Faculté de Droit de l'Université de Liège (2014), 59(2), 301-336

Cet article part du constat que la Chine a fortement accru sa présence en Amérique latine durant la dernière décennie. Il observe plus précisément que les pays avec lesquels elle a rapidement augmenté ses ... [more ▼]

Cet article part du constat que la Chine a fortement accru sa présence en Amérique latine durant la dernière décennie. Il observe plus précisément que les pays avec lesquels elle a rapidement augmenté ses échanges économiques et commerciaux se sont également engagés dans de nouveaux schémas de coopération et partenariat, posant la question de la Chine comme potentielle « alternative » aux partenaires occidentaux traditionnels de ce sous-continent. Là où nombre d’études s’interrogent sur l’impact des relations sino-latino-américaines, celle-ci propose d’analyser la stratégie chinoise envers l’Amérique latine, en s’appuyant sur le cas du partenariat stratégique avec le Brésil. Dans ce cadre, nous postulons que l’accroissement de l’influence de la Chine dans cette région du monde ne dépend pas seulement de la disponibilité de ses ressources (économiques, politiques, culturelles, militaires, etc.), ni de son aptitude à les mobiliser adéquatement, mais qu’elle tient également à la représentation qu’elle véhicule en tant qu’acteur mondial (coopération Sud-Sud) ainsi qu’à sa reconnaissance par les autres acteurs du système international. En ce sens, la puissance de la Chine se mesure également à travers sa capacité à s’affirmer comme une référence pour ses pairs émergents, voire auprès des puissances occidentales. En appréhendant les différentes dimensions de la puissance chinoise à travers ses actions de politique extérieure et les discours afférents, nous mesurerons dès lors la capacité d’influence de la Chine en Amérique latine, et plus précisément vis-à-vis du Brésil, à travers l’écart entre son discours (coopération) et la réalité (hégémonie). [less ▲]

Detailed reference viewed: 12 (0 ULg)
Full Text
Peer Reviewed
See detailAsteroseismology of evolved stars: from hot B subdwarfs to white dwarfs
Van Grootel, Valérie ULg; Fontaine, G.; Charpinet, S. et al

Conference (2014, September)

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailOn the role of pressure in elasto-inertial turbulence
Terrapon, Vincent ULg; Dubief, Yves; Soria, Julio

in Journal of Turbulence (2014), 16(1), 26-43

The dynamics of elasto-inertial turbulence is investigated numerically from the perspective of the coupling between polymer dynamics and flow structures. In particular, direct numerical simulations of ... [more ▼]

The dynamics of elasto-inertial turbulence is investigated numerically from the perspective of the coupling between polymer dynamics and flow structures. In particular, direct numerical simulations of channel flow with Reynolds numbers ranging from 1000 to 6000 are used to study the formation and dynamics of elastic instabilities and their effects on the flow. Based on the splitting of the pressure into inertial and polymeric contributions, it is shown that the polymeric pressure is a non-negligible component of the total pressure fluctuations, although the rapid inertial part dominates. Unlike Newtonian flows, the slow inertial part is almost negligible in elasto-inertial turbulence. Statistics on the different terms of the Reynolds stress transport equation also illustrate the energy transfers between polymers and turbulence and the redistributive role of pressure. Finally, the trains of cylindrical structures around sheets of high polymer extension that are characteristics of elasto-inertial turbulence are shown to be correlated with the polymeric pressure fluctuations. [less ▲]

Detailed reference viewed: 21 (2 ULg)
Full Text
Peer Reviewed
See detailMode of Action of Lactoperoxidase as Related to Its Antimicrobial Activity: A Review
Bafort, Françoise ULg; Parisi, Olivier ULg; Perraudin, Jean-Paul et al

in Enzyme Research (2014), 2014

Detailed reference viewed: 6 (2 ULg)