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See detailElastocapillarity in Dock Beetle Adhesion
Gernay, Sophie-Marie ULg; Federle, Walter; Lambert, Pierre et al

Poster (2016, September)

Miniaturization is currently limited by our ability to manipulate micrometer-sized objects. Insect adhesion is an advantageous bio-inspired solution to this problem, although it is not fully understood ... [more ▼]

Miniaturization is currently limited by our ability to manipulate micrometer-sized objects. Insect adhesion is an advantageous bio-inspired solution to this problem, although it is not fully understood yet. Interference Reflection Microscopy images of the beetle Gastrophysa Viridula adhesive structures in contact with a smooth substrate were analyzed. The results were cross-linked with an analytical model of an elastic beam deflected by a liquid meniscus. By fitting the unknown model parameters to the experimental data, we obtained information about the elastic properties of the structures, the liquid volume in the bridge, and the resulting adhesion levels. [less ▲]

Detailed reference viewed: 14 (1 ULg)
Peer Reviewed
See detailElastocapillarity in insect adhesion: IRM investigation
Gernay, Sophie-Marie ULg; Federle, Walter; Lambert, Pierre et al

Conference (2015, June)

The feet of many insects are covered with dense arrays of micrometric hair-like structures called setae. Liquid capillary bridges formed at the tip of these slender structures are responsible for the ... [more ▼]

The feet of many insects are covered with dense arrays of micrometric hair-like structures called setae. Liquid capillary bridges formed at the tip of these slender structures are responsible for the controlled adhesion of the insect on a large variety substrates. The resulting adhesion force is very efficient: it can exceed several times the body weight of the insect and yet vanish in a few milliseconds for fast detachment. The high aspect-ratio of setae suggests that flexibility is a key ingredient in this capillary-based adhesion mechanism. There is indeed a strong coupling between their elastic deformation and the shape of the liquid meniscus. In this experimental work, we observe and quantify the local deflection of dock beetle (Gastrophysa viridula) seta tips under perpendicular loading using interference reflection microscopy (IRM). Our results are then interpreted in the light of an analytic model of elastocapillarity through which we gain information about the optimal regime that these insects target. [less ▲]

Detailed reference viewed: 21 (3 ULg)
Peer Reviewed
See detailElastocapilllarity in insect adhesion: the case of beetle adhesive hairs
Gernay, Sophie-Marie ULg; Federle, Walter; Lambert, Pierre et al

Conference (2014, November)

The feet of many insects are covered with dense arrays of hair-like structures called setae. Liquid capillary bridges at the tip of these micrometric structures are responsible for the controlled adhesion ... [more ▼]

The feet of many insects are covered with dense arrays of hair-like structures called setae. Liquid capillary bridges at the tip of these micrometric structures are responsible for the controlled adhesion of the insect on a large variety of substrates. The resulting adhesion force can exceed several times the body weight of the insect. The high aspect-ratio of setae suggests that flexibility is a key ingredient in this capillary-based adhesion mechanism. There is indeed a strong coupling between their elastic deformation and the shape of the liquid meniscus. In this experimental work, we observe and quantify the local deflection of dock beetle seta tips under perpendicular loading using interference microscopy. Our results are then interpreted in the light of an analytic model of elastocapillarity. [less ▲]

Detailed reference viewed: 16 (1 ULg)
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See detailElastofibrome dorsal
TOMASELLA, Marco ULg

Conference (2009, December 14)

Detailed reference viewed: 9 (0 ULg)
Peer Reviewed
See detailElastoplastic anisotropic model based on texture analysis to simulate steel sheet behavior
Duchene, Laurent ULg; Habraken, Anne ULg; Cescotto, Serge ULg

in 7th International Symposium on Plasticity (1999)

Detailed reference viewed: 12 (6 ULg)
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Peer Reviewed
See detailAn elastoplastic model with combined isotropic–kinematic hardening to predict the cyclic behavior of stiff clays
Hong, P.Y.; Pereira, J.M.; Cui, Y.J et al

in Computers and Geotechnics (2014)

Detailed reference viewed: 31 (5 ULg)
Peer Reviewed
See detailELBW Infants Benefit More of Optimized Nutritional Supply
SENTERRE, Thibault ULg; Habibi, F; Rigo, J

in Pediatric Academic Societies and Asian Society for Pediatric Research Joint Meeting (2011)

Detailed reference viewed: 16 (0 ULg)
See detaileLearning : Definitions, Illustrations and Added-value for University Teaching
Poumay, Marianne ULg

Scientific conference (2006, November 09)

Detailed reference viewed: 24 (0 ULg)
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See detaileLearning COLEACP : un dispositif de formation au service des professionnels du secteur agricole en Afrique
Prunier, Emmanuelle; Le Hung, Florian; Schiffers, Bruno ULg

in ELearning Africa 2014 - Book of Abstracts (2014)

Le dispositif de formation à distance du COLEACP (Comité de Liaison Europe-Afrique-Caraïbes-Pacifique) est une composante d'un système complet de formation dédié au renforcement des capacités des ... [more ▼]

Le dispositif de formation à distance du COLEACP (Comité de Liaison Europe-Afrique-Caraïbes-Pacifique) est une composante d'un système complet de formation dédié au renforcement des capacités des opérateurs des filières agricoles des pays ACP (Afrique Caraïbes et Pacifique). [less ▲]

Detailed reference viewed: 84 (5 ULg)
See detailL'eLearning dans votre entreprise
Poumay, Marianne ULg; Philippart, Sophie ULg

Conference given outside the academic context (2007)

Detailed reference viewed: 25 (3 ULg)
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See detaileLearning et évaluation formative, un mariage heureux
Van de Poël, Jean-François ULg

Conference (2011, November)

Cette présentation était destinée à démontrer en quoi les outils eLearning pouvaient être mis au service des démarches d'évaluation formative mises en oeuvre par les enseignants.

Detailed reference viewed: 38 (2 ULg)
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Peer Reviewed
See detailL'eLearning et les femmes : retour d'expérience. Une étude exploratoire auprès de 22 femmes
Lesire, Catherine ULg; Géron, Stéphanie ULg; Georges, François ULg

in Paliard, C.; Nkambou, R.; Narce, C. (Eds.) et al Actes du 8ème Colloque Technologies de l’Information et de la Communication pour l’Enseignement: Intégration Technologique et Nouvelles Perspectives d’Usage (2012, December)

Who are the women who learn online ? Why and in which circumstances have they chosen to learn online ? Have they taken advantage of this experience ? In this article, we speak about the exploratory survey ... [more ▼]

Who are the women who learn online ? Why and in which circumstances have they chosen to learn online ? Have they taken advantage of this experience ? In this article, we speak about the exploratory survey carried out with 22 women to know their motivation in online courses, what they did during those courses and what they remember of their experience. We also wanted to know whether eLearning gave women the opportunity to learn and to be trained even when they have a lot of responsabilities and sometimes little time to learn. [less ▲]

Detailed reference viewed: 118 (17 ULg)
See detailL’eLearning – Quel intérêt pour l’ULg ?
Poumay, Marianne ULg

Scientific conference (2007, March 12)

Detailed reference viewed: 9 (0 ULg)
See detailL’eLearning, Cheval de Troyes de la qualité pédagogique
Poumay, Marianne ULg

Conference given outside the academic context (2005)

Detailed reference viewed: 16 (1 ULg)
See detailL’eLearning, un outil pour la remédiation
Poumay, Marianne ULg

Conference given outside the academic context (2010)

Detailed reference viewed: 138 (15 ULg)
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Peer Reviewed
See detailL'élection de domicile en procédure pénale
Michiels, Olivier ULg

in Revue de Droit Pénal et de Criminologie (2006)

L'article examine les implications de la notion de domicile et de domicile élu sur la régularité des significations des actes judiciaires.

Detailed reference viewed: 650 (1 ULg)