References of "2012"
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See detailLe leasing immobilier
Kohl, Benoît ULg

Scientific conference (2012, February)

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See detailDéveloppement d'un prototype exploitant les brevets ViBe et le chiffrement d'images
Schadeck, Damien ULg; Van Droogenbroeck, Marc ULg

Report (2012)

This report develops many software enhancements proposed to speed up ViBe, a patented technology designed to detect backgrounds and motion in video sequences. It also elaborates on a technology for the ... [more ▼]

This report develops many software enhancements proposed to speed up ViBe, a patented technology designed to detect backgrounds and motion in video sequences. It also elaborates on a technology for the partial encryption of images. [less ▲]

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See detailWhat have the last outbreaks of atypical myopathy in Europe told us: new epidemiological evidence.
Votion, Dominique ULg

in Verwilghen, Denis; Van Galen, Gaby; Busoni, Valeria (Eds.) Belgian International Congress: Hippos 2012 (2012, February)

Atypical myopathy outbreaks are of an acute and unexpected nature and the information given in this review aims at helping equine practitioners in the recognition and handling of a suspected case in the ... [more ▼]

Atypical myopathy outbreaks are of an acute and unexpected nature and the information given in this review aims at helping equine practitioners in the recognition and handling of a suspected case in the event of AM outbreaks. So, this review (1) describes the diagnostic tools for AM, (2) reports prognostic criteria, and (3) lists preventive measures based on recent epidemiological surveys. [less ▲]

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See detailBénéfices démontrés et potentiels de l'administration intraveineuse périopératoire de lidocaïne
Giudice, Véronica; LAUWICK, Séverine ULg; KABA, Abdourahmane ULg et al

in Revue Médicale de Liège (2012), 67(2), 81-84

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See detailContract 21539/08/NL/SFe - Advancement of mechanical verification methods for non-linear spacecraft: Nonlinear identification using a subspace-based method in the frequency domain
Noël, Jean-Philippe ULg; Renson, Ludovic ULg; Kerschen, Gaëtan ULg

Report (2012)

The objective of this technical note is to explore the applicability of a newly introduced nonlinear system identification technique to spacecraft structures. To this end, numerical experiments are ... [more ▼]

The objective of this technical note is to explore the applicability of a newly introduced nonlinear system identification technique to spacecraft structures. To this end, numerical experiments are conducted using a finite element model of the SmallSat spacecraft. A detailed introduction to the method, referred to as the frequency-domain nonlinear subspace identification (FNSI) method, is provided and its major assets are commented. Random-type and sine-sweep excitations are considered and identification results are extensively discussed. [less ▲]

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See detailElectromagnetic absorption properties of carbon nanotube nanocomposite foam filling honeycomb waveguide structures
Quiévy, Nicolas; Bollen, Pierre; Thomassin, Jean-Michel ULg et al

in IEEE Transactions on Electromagnetic Compatibility (2012), 24(1), 43-51

Carbon nanotube reinforced polymer foams filling a metallic honeycomb were processed and characterized for the production of hybrid materials with high electromagnetic absorption potential ... [more ▼]

Carbon nanotube reinforced polymer foams filling a metallic honeycomb were processed and characterized for the production of hybrid materials with high electromagnetic absorption potential. Electromagnetic modeling and experimental characterization of the hybrids proved that the honeycomb, acting as a hexagonal waveguide, improves the absorption properties in the gigahertz range above the cutoff frequency. The electromagnetic absorption can be tuned by changing the hybrid material properties. The required levels of electrical conductivity are attained owing to the dispersion of low amounts (1–2 wt%) of carbon nanotubes inside the polymermatrix. The combination of the foam and honeycomb architecture contributes to decrease the real part of the relative effective permittivity Re{εr,eff }. Varying the cell shape of the honeycomb changes the frequency range for high absorption. An analytical model for the absorption has been developed, showing good agreement with the experimental results. [less ▲]

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See detailLivre Blanc Céréales - Gembloux
Destain, Jean-Pierre ULg; Bodson, Bernard ULg

Book published by Gembloux Agro-Bio Tech - Edition février 2012 (2012)

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See detailStructuration de la diversité génétique du genre Milicia: taxonomie, phylogéographie, dynamique des populations
Daïnou, Kasso ULg

Doctoral thesis (2012)

Characterizing population genetic structure using phylogeographic approach contributes to understanding of evolutionary processes that affect plant populations. The present study investigated how past ... [more ▼]

Characterizing population genetic structure using phylogeographic approach contributes to understanding of evolutionary processes that affect plant populations. The present study investigated how past environmental variations can shape the spatial genetic diversity of an African timber tree species, Milicia excelsa (Welw) C.C. Berg. Given that plant responses to disturbances are closely linked to life history traits, this research also aimed to describe relationships between the reproductive traits of M. excelsa and its population genetic structure. Phylogeographic analyses were performed throughout the range of M. excelsa using nuclear and chloroplastic markers. Ecological characterization was conducted for a single population located in south-East Cameroon. Since M. excelsa is similar to the other species of its genus, M. regia (A. Chev) C.C. Berg, we first performed a morphogenetic comparison of these two taxa. The results confirmed an important morphological similarity between the two species with very rare discriminating criteria. In fact Bayesian assignment methods and reproductive isolation patterns suggest the occurrence of interspecific hybridization, which appeared to be unidirectional: hybrids displayed the M. regia morphotype. Because M. regia is known to be more adapted to humid tropical forests, one may expect it to occur in the Congo basin zone. However, its range is restricted to the western part of West Africa while M. excelsa occurs from Guinea-Conakry to Zimbabwe. Interestingly, in the case of M. excelsa, Central and West African specimens had no shared haplotype. This result was unexpected because long gene dispersal distances were found in Cameroonian populations, as expected from the behaviours of the main dispersal animals we identified, the bat Eidolon helvum and the parrots Psittacus erithacus and Agapornis swindernianus. In general, despite the likelihood for long distance seed dispersal, distinct genetic clusters were identified over West and Central Africa and their location may support the forest refugia hypothesis. In addition a phylogeographical signal was detected in chloroplast DNA indicating a prolonged separation between West and Central Africa populations with an accumulation of new mutations. At a smaller spatial scale, patterns of genetic structure also seemed to be weakly influenced by divergent reproduction times among sympatric individuals. The level of genetic diversity in the study populations falls within the range of values calculated for other tropical tree species. If phylogeography helps to infer population history, it also requires ecological or biological information to confirm some uncertainties. Such detailed data were often lacking to completely interpret numerous of our results. The present study raised new questions and led to new perspectives for further investigation both in phylogeography and botany. [less ▲]

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See detailIdentifying and computing nonlinear normal modes
Cammarano, A.; Carrella, A.; Renson, Ludovic ULg et al

in Proceedings of the SEM IMAC XXX Conference (2012, February)

Non linear normal modes offer a rigorous framework, both mathematical and physical, for theoretical and experimental dynamical analysis. Albeit still in its infancy, the concept of non linear normal modes ... [more ▼]

Non linear normal modes offer a rigorous framework, both mathematical and physical, for theoretical and experimental dynamical analysis. Albeit still in its infancy, the concept of non linear normal modes has the potential of providing to both the academic and the industrial establishment a powerful tool for the analysis of non linear dynamical systems. However, in order to exploit the full potential of this theory (and its associated simulation capability), there is need to integrate it with other branches of non linear structural dynamics: namely, in order for the non linear normal modes of a real - physical - structure to be computed, there is need to identify and quantify its non linearity. In this paper, an identification method based on the measured Frequency Response Function (FRF) is employed to identify and quantify the system's non linearity before computing the system's non linear normal modes. [less ▲]

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See detailOn the human pose recovery based on a single view
Pierard, Sébastien ULg; Van Droogenbroeck, Marc ULg

in International conference on pattern recognition applications and methods (ICPRAM) (2012, February)

Estimating the pose of the observed person is crucial for a large variety of applications including home entertainment, man-machine interaction, video surveillance, etc. Often, only a single side view is ... [more ▼]

Estimating the pose of the observed person is crucial for a large variety of applications including home entertainment, man-machine interaction, video surveillance, etc. Often, only a single side view is available, but authors claim that it is possible to derive the pose despite that humans evolve in a 3D environment. In addition, to decrease the sensitivity to color and texture, it is preferable to rely only on the silhouette to recover the pose. Under these conditions, we show that there is an intrinsic limitation: at least two poses correspond to the observed silhouette. We discuss this intrinsic limitation in details in this short paper. To our knowledge, this issue has been overlooked by authors in the past. We observe that this limitation has an impact on the way previous reported results should be interpreted, and it has clearly to be taken into account for designing new methods. [less ▲]

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See detailLes carrières professionnelles des cadres : regard croisé du genre et de l'âge
Grodent, Françoise ULg

Scientific conference (2012, February)

Ce papier a pour objectif de réaliser une revue de littérature qui doit permettre de construire une recherche empirique visant à apporter une vision comparative des carrières des hommes et des femmes ... [more ▼]

Ce papier a pour objectif de réaliser une revue de littérature qui doit permettre de construire une recherche empirique visant à apporter une vision comparative des carrières des hommes et des femmes cadres en regard de trois groupes d’âge : les moins de 35 ans, les [35-50] ans et les plus de 50 ans. Nous considérons les deux sexes étant donné que les trajectoires professionnelles sont influencées par le sexe de la personne ainsi que par les stéréotypes et les rôles qui y sont directement associés (genre). Les générations, quant à elles, nous permettront de tenir compte de l’évolution des facteurs de contexte que sont notamment ces rôles attribués au masculin et au féminin à travers les époques. En effet, les constructions sociales liées au sexe des individus sont susceptibles de changer d’une génération à l’autre et donc d’agir distinctement sur les intentions de carrière. Le fait d’introduire la dimension générationnelle, en plus de celle du genre, est l’occasion d’aborder le concept d’intersectionnalité qui consiste en un croisement des groupes cibles propres à la gestion de la diversité. A l’issue de cet aperçu théorique faisant état de la littérature existante relative à cette thématique des carrières des individus occupant un poste à responsabilités, nous pourrons mettre en évidence différentes questions de recherche qu’il nous faudra, dans un second temps, confronter à la réalité du terrain. [less ▲]

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See detailWhat have the last outbreaks of atypical myopathy in Europe told us: new treatment plans
Van Galen, Gaby ULg; Votion, Dominique ULg

in Verwilghen, Denis; Van Galen, Gaby; Busoni, Valeria (Eds.) Belgian International Congress: Hippos 2012 (2012, February)

Management and treatment of atypical myopathy cases

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See detailPropositions pour une politique de soutien des indépendants en difficulté
Van Caillie, Didier ULg; Lambrecht, Johan

Book published by Fondation Roi Baudouin - 1ère édition (2012)

This study discusses seven proposals allowing to increase the efficiency of administrative and legal measures taken by Belgian Public Authorities to prevent and to tackle with the difficulties encountered ... [more ▼]

This study discusses seven proposals allowing to increase the efficiency of administrative and legal measures taken by Belgian Public Authorities to prevent and to tackle with the difficulties encountered by entrepreneurs confrontated to the first steps of a business decline. [less ▲]

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See detailHet janushoofd van Julia (1885)
Steyaert, Kris ULg

in Nederlandse Letterkunde (2012), 17(1), 10-31

In 1884 Willem Kloos and Albert Verwey started work on Julia, a collection of forty poems written in the manner of the successful author Fiore della Neve (M.G.L. van Loghem). In their pamphlet The ... [more ▼]

In 1884 Willem Kloos and Albert Verwey started work on Julia, a collection of forty poems written in the manner of the successful author Fiore della Neve (M.G.L. van Loghem). In their pamphlet The Incompetence of the Dutch Literary Critics (1886), in which Julia’s true authorship was revealed, Kloos and Verwey made plain that the poems had been conceived as deliberate nonsense, something the Dutch literary establishment had failed to recognize. Nevertheless, a close reading of the collection brings to light a number of textual similarities with Kloos’s and Verwey’s serious poetry written in the period 1883-1885. This article reveals Julia as a fascinating hybrid in which an older aesthetic coexists with a new poetical language associated with the Eighties Movement. [less ▲]

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See detailInvestigations sur les protéines placentaires extraites des cotylédons fœtaux du Cervus elaphus
Fondja, E.; Okuyama, M.; Petrova, A. et al

Poster (2012, February)

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See detailThe first X-ray survey of Galactic Luminous Blue Variables
Nazé, Yaël ULg; Rauw, Grégor ULg; Hutsemekers, Damien ULg

in Astronomy and Astrophysics (2012), 538

Aims: The X-ray emission of massive stars has been studied when these objects are in their main-sequence phase, as well as in their Wolf-Rayet phase. However, the X-ray properties of the transitional ... [more ▼]

Aims: The X-ray emission of massive stars has been studied when these objects are in their main-sequence phase, as well as in their Wolf-Rayet phase. However, the X-ray properties of the transitional Luminous Blue Variable (LBV) phase remain unknown. Methods: Using a dedicated but limited XMM survey as well as archival XMM and Chandra observations, we performed the first X-ray survey of LBVs: about half of the known LBVs or candidate LBVs are studied. Results: Apart from the well known X-ray sources eta Car and Cyg OB2 #12, four additional LBVs are detected in this survey, though some doubt remains on the association with the X-ray source for two of these. For the other LBVs, upper limits on the flux were derived, down to $\log[L_{\rm X}/L_{\rm BOL}]-9.4$ for PCyg. This variety in the strength of the X-ray emission is discussed, with particular emphasis on the potential influence of binarity. [less ▲]

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See detailLower impact of blue light on non-visual brain functions in older subjects
Daneault, V; Vandewalle, Gilles ULg; Hébert, M et al

Poster (2012, February)

Detailed reference viewed: 8 (3 ULg)