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See detailFeature extraction for non-linear model updating
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in International Conference on Structural Dynamics Modelling, Funchal, 2002 (2002, June)

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See detailFeature Extraction from Range Imagery using Mathematical Morphology
Esselman, Thomas R.; Verly, Jacques ULg

Conference (1987, October)

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See detailFeature Extraction in Laser-radar Range Imagery: I. Contour-based Approach
Williams, Brian D.; Verly, Jacques ULg; Esselman, Thomas R. et al

Conference (1986, November)

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See detailFeature Extraction in Laser-radar Range Imagery: II. Intensity-Cued Region-based Approach
Verly, Jacques ULg; Esselman, Thomas R.; Dudgeon, Dan E.

Conference (1986, November)

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See detailFeature extraction using auto-associative neural networks
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in Smart Materials & Structures (2004), 13(1), 211-219

Modal analysis is now mature and well accepted in the design of mechanical structures. It determines the vibration mode shapes and the corresponding natural frequencies. However, the validity of modal ... [more ▼]

Modal analysis is now mature and well accepted in the design of mechanical structures. It determines the vibration mode shapes and the corresponding natural frequencies. However, the validity of modal analysis is limited to structures showing a linear behaviour. In non-linear structural dynamics, it is well known that mode shapes are no longer useful for the characterization of the dynamic response. The purpose of the present paper is to define new features which efficiently capture the dynamics of a non-linear structure. The proposed methodology takes advantage of auto-associative neural networks to compute one-dimensional curves which allow for non-linear dependences between the coordinates. Synthetic data sampled from a non-linear normal mode motion are used to illustrate the method and to develop intuition about its implementation. [less ▲]

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See detailFeature Selection and Extraction
Verly, Jacques ULg

Scientific conference (1998)

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See detailFeature Subset Selection in Regression with High Feature-to-Sample Ratio Datasets
Meyer, Patrick ULg

Master's dissertation (2004)

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See detailFeatures of elastic scattering at small t at the LHC
Selyugin, O. V.; Cudell, Jean-René ULg

in AIP Conference Proceedings (2009), 1105

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See detailFeatures of follicular dendritic cells in ovine pharyngeal tonsil: An in vivo and in vitro study in the context of scrapie pathogenesis
Toppets, Vinciane ULg; Defaweux, Valérie ULg; Piret, Joëlle ULg et al

in Veterinary Immunology and Immunopathology (2011), 141

Although the alimentary tract has been suggested as the most likely portal of entry in natural scrapie, a growing amount of data indicates that the respiratory system and more specifically the pharyngeal ... [more ▼]

Although the alimentary tract has been suggested as the most likely portal of entry in natural scrapie, a growing amount of data indicates that the respiratory system and more specifically the pharyngeal tonsils serve as a natural portal of entry for scrapie. This study describes for the first time the broad cell populations in the lymphoid compartment of pharyngeal tonsils and more specifically inside the lymphoid follicles where the scrapie agent accumulates during the period of latency. Follicular dendritic cells (FDCs), stromal cells located in the light zone of the germinal centre of lymphoid follicles, seem to be the principal causal factor in the accumulation of the infectious agent in transmissible spongiform encephalopathy (TSE) diseases. Knowing that efficient lymphoreticular prion propagation requires PrPc expression, we analysed the expression of PrPc with the mouse monoclonal antibody Pri 909 both in situ and on FDC-cluster-enriched cell suspensions. In situ, a positive staining was observed in the germinal centre of pharyngeal lymph follicles. The germinal centre labelling was due to the presence of a follicular dendritic network as revealed after immunogold staining of isolated FDC clusters. Our results suggest that the pharyngeal lymphoreticular system and more specifically PrPc expressing follicular dendritic cells could serve as a prion “reservoir” during the latency phase, thus playing a key role during the scrapie lymphoinvasion. [less ▲]

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See detailFebrile convulsions: an update
Lagae, L.; Ceulemans, B.; Misson, Jean-Paul ULg

in Acta Neurologica Belgica (2004)

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See detailFecal calprotectin concentration in adult dogs with and without digestive troubles
Grellet, A.; Heilmann, R. M.; Feugier, A. et al

in Proceedings of the 21st ECVIM-CA Congress (2011, September)

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See detailFecal calprotectin concentrations in adult dogs with chronic diarrhea.
Grellet A.; Heilmann R.M.; Lecoindre P. et al

in American Journal of Veterinary Research (2013), 74 (5)

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See detailThe Fechner-Brentano controversy on the measurement of sensation
Seron, Denis ULg

in Revue Roumaine de Philosophie (2011), 55(1), 87-102

The purpose of this paper is to provide an overview of Brentano's critique of Fechner's psychophysics. An attempt is made to show that, far from being a mere historical curiosity, the dispute with Fechner ... [more ▼]

The purpose of this paper is to provide an overview of Brentano's critique of Fechner's psychophysics. An attempt is made to show that, far from being a mere historical curiosity, the dispute with Fechner is of strategic importance for Brentano's theory of sensation. I defend the view that Brentano not only raised strong objections against the logarithmic law, but also sought to lay new foundations for the idea of a psychophysical measurement set forth by Fechner in his Elements of Psychophysics. In the first section, I briefly review some facts about Fechner's psychophysical law and discuss two corrections proposed by Brentano. In the second section, I examine some further, more general objections. In the final section, I then show how Brentano's late theory of "sensory spaces" could be viewed as a positive contribution to the psychophysical problem as posed by Fechner. [less ▲]

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See detailFécondité de la vache Borgou au Bénin : effet de l'âge au premier vêlage sur l'intervalle entre vêlages
Adamou-N'Diaye, M.; Gbangboche, A. B.; Ogodja, O. J. et al

in Revue d'Elévage et de Médecine Vétérinaire des Pays Tropicaux (2002), 55(2), 1-5

Des données recueillies à la ferme du monastère de Kokoubou (département du Borgou au Bénin) ont servi à étudier l’âge au premier vêlage et l’intervalle entre vêlages chez la vache Borgou. De 1967 à 1989 ... [more ▼]

Des données recueillies à la ferme du monastère de Kokoubou (département du Borgou au Bénin) ont servi à étudier l’âge au premier vêlage et l’intervalle entre vêlages chez la vache Borgou. De 1967 à 1989, 91 âges au premier vêlage et 524 intervalles entre vêlages ont été utilisés. L’âge moyen au premier vêlage a été de 1 122 ± 257 jours (37,4 ± 7,9 mois, soit 3 ans et 26 jours) et l’intervalle moyen entre vêlages a été de 450 ± 132 jours (14,8 ± 4,4 mois, soit un an et 2,8 mois). L’effet de l’âge au premier vêlage sur l’intervalle entre vêlages a été très significatif (p < 0,001) et faible (r = 0,22). [less ▲]

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See detailFécondité des vaches et troupeaux laitiers wallons. Effet du management.
Chapaux, Philippe; Glorieux, Géry; Hanzen, Christian ULg

in Wallonie Elevages (2013), 4

L’intervalle moyen entre vêlages est de 409 jours. Pour les 25 % meilleurs troupeaux (3125 annéesz troupeaux) et vaches (107.700 lactations), il est respectivement de 387 et 346 jours. L’objectif ... [more ▼]

L’intervalle moyen entre vêlages est de 409 jours. Pour les 25 % meilleurs troupeaux (3125 annéesz troupeaux) et vaches (107.700 lactations), il est respectivement de 387 et 346 jours. L’objectif classiquement proposé d’un veau par vache et par an n’est atteint que dans 0,38% des troupeaux et par une vache sur quatre (27%). L’augmentation de la production laitière moyenne s’accompagne d’un allongement de l’intervalle entre vêlages. Des performances de reproduction comprises entre 380 jours pour les élevages dont la production est inférieure à 8000 kg et de 390 jours pour les élevages dont la production est supérieure à 8000 kg de lait sont néanmoins tout à fait possibles. L’impact de l’augmentation du niveau de production sur l’allongement de l’intervalle entre vêlages est limité. Les éleveurs dont les troupeaux ont des moyennes de production égales ou supérieures à 8.000 kg tirent un meilleur parti de l’environnement (effet positif) que ceux dont les troupeaux ont des moyennes de production inférieures à 7.000 Kg. La marge brute par vache augmente avec le niveau de production laitière moyen du troupeau. [less ▲]

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See detailLa fédédéralisation des allocations familiales : l'amorce d'une scission progressive de la sécu ?
Behrendt, Christian ULg

Scientific conference (2013, November 19)

Conférence donnée à l'invitation du Centre de droit public de l'Université Libre de Bruxelles

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See detailThe federal electoral constituency in Belgium: deliberative perspectives
Dodeigne, Jérémy ULg

Conference (2011, August)

Belgium constitutes a good illustration of Mill’s statement about public opinion in divided societies: “the united public opinion…cannot exist [in a country which citizens] read and speak different ... [more ▼]

Belgium constitutes a good illustration of Mill’s statement about public opinion in divided societies: “the united public opinion…cannot exist [in a country which citizens] read and speak different languages” (1993: 391-7). However, according to Lijphart (2007), sociological and political divisions are not problematic. On the contrary, his seminal work on consociationalism promotes such separations among social groups through power-sharing and self-rule. Concerning its electoral system, Belgium represents a striking case of consociational design; whereas criticised by several due to its consequences on the Belgian political system. Indeed, it implies an ethnicisation of political life while it favours intra-groups’ claims escalation as well as it prevents inter-groups communication. In this respect, the proposal for a federal electoral constituency (FEC) in Belgium was put back on the agenda in 2007. First proposed in 1979, the proposal was quite fairly debated during the electoral campaign and government formation.This proposal offers deliberative perspectives to that question. Indeed, electoral studies do not tackle citizens’ perceptions, at least not directly, nor do they focus on reasons of citizens’ opinions. Yet, a specific deliberative methodology (scenario workshop) can explore this research path. Based on data collected during autumn 2009, we can offer tentative answers to crucial questions relating to citizens’ opinions about the FEC: what do they think? Do they feel involved and concerned by this debate? Do they agree or disagree with the electoral reform proposal? And, more importantly, why do they think so when invited to deliberate with other citizens, politicians and experts? [less ▲]

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See detailFederal public administration reform in Belgium: new public management under deconstruction
Joris, Geoffrey ULg; de Visscher, Christian; Montuelle, Caroline

in actes du colloques de l'AFSP (2009)

Since the 1980s we assist at a co-evolutionary redefinition of social structures that its permanence contributes to legitimate it. In this perspective, the particularities of each modernities are put in ... [more ▼]

Since the 1980s we assist at a co-evolutionary redefinition of social structures that its permanence contributes to legitimate it. In this perspective, the particularities of each modernities are put in an explicit perspective and raise question because they have lost their own evidence.4 While industrial modernity is characterized by a discourse on stability, radical modernity is characterized by an information overload, an hyper-complexity, the emergence of a multidimensional uncertainty reinforced by the mergence of a multidimensional value configuration and social mobility.5 In the field of public administration, all these elements converge towards the need to construct some form of post-bureaucratic or reflexive public civil service structured through flexible and open management instruments [less ▲]

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See detailFederal Risk Inventory, Survey and Knowledge building (FRISK)
Cornélis, Bernard; Brunet, Sébastien ULg; Juprelle, Pol

Report (2004)

1. Introduction Le projet FRISK (Federal Risk Inventory, Survey and Knowledge building) est une recherche commanditée par le Centre Gouvernemental de Coordination et de Crise (CGCCR) ou centre de crise ci ... [more ▼]

1. Introduction Le projet FRISK (Federal Risk Inventory, Survey and Knowledge building) est une recherche commanditée par le Centre Gouvernemental de Coordination et de Crise (CGCCR) ou centre de crise ci-après. Cette recherche s’inscrit dans une démarche constructive et prospective. Ses objectifs sont multiples et ambitieux : - établir une méthodologie permettant de reproduire la démarche ; - inventorier de manière exhaustive les dangers et risques auxquels la société actuelle est exposée ; - évaluer la fréquence de ces menaces ; - ainsi que leurs conséquences et impacts sur la population belge ; - classer (regrouper en famille et donner une priorité) aux risques ; - consulter les membres et les partenaires du CGCCR pour connaître leur évaluation ; - analyser les différentes approches ; - prendre en compte la perception de la population ; - s’inspirer d’études et de travaux similaires, belges et internationaux ; - inscrire cette étude dans le cadre de la définition d’une situation de crise conformément aux AR du 18 avril 1988 (création du CGCCR) et du 31 janvier 2003 (définition phase 4). [less ▲]

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