References of "2012"
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See detailnon invasive estimation of left atrial pressure and mitral valve area waveforms during an entire cardiac cycle
Paeme, Sabine ULg; Pironet, Antoine ULg; LANCELLOTTI, Patrizio ULg et al

in proceeding of 11th national day of the National Committee on Biomedical Engineering (2012, December 07)

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See detailLa porosité des frontières entre arts plastiques et bande dessinée
Paques, Frédéric ULg; Goblet, Dominique; De Vos, Yassine et al

Scientific conference (2012, December 07)

Conférence-débat sur les relations entre arts plastiques et bande dessinée, et notamment sur la place de la narration dans les arts plastiques.

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See detailPiezocision-assisted orthodontic treatment in adult patient: A case report
CHARAVET, Carole ULg; LAMBERT, France ULg; LECLOUX, Geoffrey ULg et al

Conference (2012, December 07)

The duration of orthodontic treatments in adult patient remains a barrier for some patients. The recent scientific reports describing piezocision technique involving minimally invasive corticotomies, seem ... [more ▼]

The duration of orthodontic treatments in adult patient remains a barrier for some patients. The recent scientific reports describing piezocision technique involving minimally invasive corticotomies, seem to be of interest for these particular cases. The present communication describes the clinical case of a 20-year-old patient presenting a class I bilateral, an overcrowding of front areas with the superior canine in mesio-infraclusion and a deviated lower median line. An excellent multidisciplinary approach is mandatory for the planification of such cases. Under local anesthesia, the surgical technique involves vertical minimal incision around the teeth that need to be moved. Trough the minimal incisions, 5mm vertical alveolar osteotomies are performed using ultrasonic surgical device. No suture is necessary. The orthodontic activation is applied 1 week before the surgical procedure and the patient is recalled every 15 days to activate the orthodontic appliance. In this case self-ligating brackets were used to reduce the friction. Post-operative outcomes were painless for the patient and the complete orthodontic procedure took 7 months. The overall treatment appeared to be faster than a conventional orthodontic treatment. However, even if animal studies seem to confirm the clinical feeling described in this case report, further clinical studies including randomized controlled trials are needed to validate this treatment approach. [less ▲]

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See detailMens immobilis. Recherches sur le corpus latin des actes et passions d'Afrique romaine (IIe-VIe siècles)
Fialon, Sabine ULg

Doctoral thesis (2012)

This thesis focuses on a corpus of thirty hagiographical texts from Roman North Africa, dated from the second to the sixth century. None synthesis on this corpus had been made since P. Monceaux’s work in ... [more ▼]

This thesis focuses on a corpus of thirty hagiographical texts from Roman North Africa, dated from the second to the sixth century. None synthesis on this corpus had been made since P. Monceaux’s work in the early twentieth century. In the first part, all the latin texts were collected, together with a translation and an exhaustive research of the sources : for many of them I gave a new critical edition, and a new text, the long recension of the Passion of Marciana, has been discovered. This corpus is then studied from an historical point of view. The first two sections examine these texts as evidence of the christianization of Africa, through the study of the complex phenomenon of persecutions and martyrdom. The third part illustrates the multiple potentialities of hagiographic discourse, which tends to make a new Christian hero, combination of pagan hero and of the theme of Judeo-Hellenistic Just suffering. The latter addresses the corpus as evidence of the literary culture of African elites and contributes to the cultural history of North Africa and of the circulation of ideas and works. It also discusses the question of the africitas, according to the methods of the LASLA of the University of Liège, methods applied to three passions of Caesarean Mauretania. [less ▲]

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See detailGrimm-Rezeption in Maurice Maeterlincks Drama "Pelléas et Mélisande"
Küpper, Achim ULg

Scientific conference (2012, December 07)

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See detailGermanistik in der Benelux: Kasus Belgien
Küpper, Achim ULg

Scientific conference (2012, December 07)

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See detailShoulder injury prevention in sports using 3D motion capture
Schwartz, Cédric ULg; HAZEE, Amandine ULg; Denoël, Vincent ULg et al

Poster (2012, December 07)

In sports, where regular and intensive training could progressively lead to traumatic situations, accurate measurement of kinematic parameters can help to predict and anticipate injuries. Overhead ... [more ▼]

In sports, where regular and intensive training could progressively lead to traumatic situations, accurate measurement of kinematic parameters can help to predict and anticipate injuries. Overhead throwing athletes may develop an increased stiffness of the shoulder capsule. The resulting diminution of the gleno-humeral range of motion is usually associated with decreased performance and injury risks. This study illustrates the detection of these situations that put the athlete at risk. [less ▲]

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See detailUsing Proper Orthogonal Decomposition Methods for Comparing CFD Results to Experimental Measurements
Andrianne, Thomas ULg; Guissart, Amandine ULg; Terrapon, Vincent ULg et al

Scientific conference (2012, December 07)

This work presents a method for quantitative comparison of numerical results to experimental measurements. It is based on the concept of Proper Orthogonal Decomposition. This technique is selected in ... [more ▼]

This work presents a method for quantitative comparison of numerical results to experimental measurements. It is based on the concept of Proper Orthogonal Decomposition. This technique is selected in order to compare the unsteady aerodynamic flows around static and oscillating bodies obtained from wind tunnel testing and numerical simulations. Two dimensional Time-resolved Particle Image Velocimetry measurements are carried out on the upper surface a 4:1 rectangular cylinder. Simulations are performed using unsteady Reynolds-Averaged Navier-Stokes and an unsteady Discrete Vortex Method. It is demonstrated that the proposed technique is a good preliminary step for comparing the main characteristics of unsteady aerodynamic data. [less ▲]

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See detailSoutien aux aidants des patients souffrant de la maladie d'Alzheimer: Apport de la neuropsychologie
Adam, Stéphane ULg

Scientific conference (2012, December 07)

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See detailYBa2Cu3O7-x thick films on silver tubes for magnetic shielding applications
Namburi, Devendra Kumar ULg; Closset, Raphaël ULg; Fagnard, Jean-François ULg et al

Conference (2012, December 07)

YBa2Cu3O7-x (YBCO) thick films are investigated for magnetic shielding applications at low frequencies (< 1 kHz). This requires deposition of YBCO on curved substrates such as tubes, half-tubes or even ... [more ▼]

YBa2Cu3O7-x (YBCO) thick films are investigated for magnetic shielding applications at low frequencies (< 1 kHz). This requires deposition of YBCO on curved substrates such as tubes, half-tubes or even more complex shapes. Electrophoretic Deposition (EPD) is an efficient method to achieve this goal: positively-charged YBCO particles suspended in a non aqueous medium drift towards the substrate, used as negative electrode for the application of the electric field. A crucial point is then to optimize the heat treatment of the as-deposited layers in order to achieve suitable superconducting properties. In the present work, we have developed a new suspension formulation in butanol, using a suitable surfactant to stabilize the suspension of YBCO powder (grain size < 2 µm). The EPD parameters (deposition voltage, deposition time, number of layers,...) have been selected to provide uniform layers of YBCO on silver substrates of various shapes. In the proposed communication, we shall discuss in detail the optimization of the heat treatments to achieve densification, peritectic recombination and oxygenation of the YBCO thick films deposited on silver. Scanning electron microscopy coupled with energy dispersive analysis was extensively used to characterize the (i) density / porosity, (ii) presence of macro-cracks, (iii) thickness uniformity, (iv) secondary phase content. We shall then present the characterization of the superconducting properties of the best films. Typically, a uniformly coated 55μm-thick YBCO film on a curved Ag substrate shows a magnetic Tc onset at 92.2 K and sharp resistive transition (< 1K). [less ▲]

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See detailLe "basileion", les reines et Actium
Veymiers, Richard ULg

Conference (2012, December 07)

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See detailDirect parameter identification in a model of the cardiovascular system
Pironet, Antoine ULg; Dauby, Pierre ULg; Desaive, Thomas ULg

in 11th Belgian Day on Biomedical Engineering (2012, December 07)

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See detailEfficient ALE mesh management for 3D quasi-Eulerian problems
Boman, Romain ULg; Ponthot, Jean-Philippe ULg

in International Journal for Numerical Methods in Engineering (2012), 92(10), 857-890

In computational solid mechanics, the ALE formalism can be very useful to reduce the size of finite element models of continuous forming operations such as roll forming. The mesh of these ALE models is ... [more ▼]

In computational solid mechanics, the ALE formalism can be very useful to reduce the size of finite element models of continuous forming operations such as roll forming. The mesh of these ALE models is said to be quasi-Eulerian because the nodes remain almost fixed—or almost Eulerian—in the main process direction, although they are required to move in the orthogonal plane in order to follow the lateral displacements of the solid. This paper extensively presents a complete node relocation procedure dedicated to such ALE models. The discussion focusses on quadrangular and hexahedral meshes with local refinements. The main concern of this work is the preservation of the geometrical features and the shape of the free boundaries of the mesh. With this aim in view, each type of nodes (corner, edge, surface and volume) is treated sequentially with dedicated algorithms. A special care is given to highly curved 3D surfaces for which a CPU-efficient smoothing technique is proposed. This new method relies on a spline surface reconstruction, on a very fast weighted Laplacian smoother with original weights and on a robust reprojection algorithm. The overall consistency of this mesh management procedure is finally demonstrated in two numerical applications. The first one is a 2D ALE simulation of a drawbead, which provides similar results to an equivalent Lagrangian model yet is much faster. The second application is a 3D industrial ALE model of a 16-stand roll forming line. In this case, all attempts to perform the same simulation by using the Lagrangian formalism have been unsuccessful. [less ▲]

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See detailAbundance and phenological model of Harmonia axyridis (Coleoptera: Coccinellidae) in field crops
Vandereycken, Axel ULg; Brostaux, Yves ULg; Joie, Emilie ULg et al

Poster (2012, December 07)

The multicolored Asian ladybeetle Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) was introduced into Western Europe in the late 1990s. This exotic and invasive species is known to thrive ... [more ▼]

The multicolored Asian ladybeetle Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) was introduced into Western Europe in the late 1990s. This exotic and invasive species is known to thrive principally in shrubs and arboreal habitats. We focus on a phonological model and on annual abundance in various field crops. The abundance of H. axyridis adults and larvae were evaluated during a three-year period, from 2009 to 2011, in four important agronomical crops (wheat, corn, broad bean and potato) in Belgium. H. axyridis colonizes and reproduces in all four crops studied, with larger densities observed in corn and broad bean. The reproduction of H. axyridis occurs principally in corn and occurred much less in wheat and potato. From 2009 to 2011, abundances of H. axyridis populations were constant except in corn, where the observed densities of all immature stages and adults were higher in 2011 than in 2009. The population dynamics of aphids and H. axyridis were characterized by a symmetric logistic function (S-shape) based on the cumulative population size. [less ▲]

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See detailLes trois premiers miliards d’années d’évolution de la vie
Javaux, Emmanuelle ULg

Conference (2012, December 07)

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See detailQuelques constats sur le devenir des métiers industriels
Remy, Céline ULg

Conference given outside the academic context (2012)

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See detailPistes pour une mesure de la compétence numérique
Vandeput, Etienne ULg; Henry, Julie ULg

in Questions Vives : Recherches en Education (2012), 7(17),

Nowadays, in the educational field, digital literacy is considered absolutely necessary for students and citizens. If it is occasionally easy to observe the good practice of learners, there remains to ... [more ▼]

Nowadays, in the educational field, digital literacy is considered absolutely necessary for students and citizens. If it is occasionally easy to observe the good practice of learners, there remains to determine how to train them and how to certify their abilities. The visaTICE project tries to face both issues. In this project, certification is a big challenge, but another challenge is to set up a system that takes into account the school context but that is not constrained by it. Presently the visaTICE project has developed online courses, tests, ability trees, coach training programs, which can be used in different contexts but we are not able to prove now, neither the training efficiencies, nor the suitability of the certification tests. A significant number of students will participate in the certification test for the first time in May 2012. Up to now, the collaborative design principle applied in visaTICE acts as a warranty. [less ▲]

Detailed reference viewed: 64 (8 ULg)