Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
See detailConsidérations sur la haute atmosphère pendant une aurore polaire
Gérard, Jean-Claude ULg

in Bulletin de la Société Royale des Sciences de Liège (1969)

Detailed reference viewed: 9 (2 ULg)
See detailConsidérations sur la rémunération en tant qu'objet de recouvrement
Georges, Frédéric ULg

in Espace judiciaire et social européen (2003)

Detailed reference viewed: 16 (0 ULg)
Full Text
Peer Reviewed
See detailConsidérations sur la représentation et le réputé contradictoire en matière pénale
Thevissen, Patrick ULg

in Revue de Droit Pénal et de Criminologie (2012), (2), 189-205

Note d'arrêt - Etat de la question de la représentation par avocat en droit pénal belge et du réputé contradictoire en Belgique

Detailed reference viewed: 26 (5 ULg)
Full Text
See detailConsidérations sur la structure actuelle des hêtraies en Ardenne et en région jurassique : Implications en matière de traitement sylvicole
Rondeux, Jacques ULg; Lecomte, H.

in Bulletin de la Société Royale Forestière de Belgique = Tijdschrift van de Koninklijke Belgische Bosbouwmaatschappij (1988), 95(6), 279-293

L'étude de la structure des peuplements, habituellement matérialisée au moyen de la distribution des nombres de bois par catégories de grosseur, est fondamentale pour le sylviculteur. Elle est le reflet ... [more ▼]

L'étude de la structure des peuplements, habituellement matérialisée au moyen de la distribution des nombres de bois par catégories de grosseur, est fondamentale pour le sylviculteur. Elle est le reflet de l'histoire des peuplements, et dans une certaine mesure, un révélateur du traitement forestier actuel. Pour la gestion future elle peut servir de guide à la définition et à l'application de méthodes culturales nécessaires pour maintenir ou rétablir un équilibre favorable à une production optimale et continue des peuplements. A cet égard, nous pensons qu'il faut, une fois de plus, poser la question de la perpétuation de la formation végétale la plus naturelle et la plus stable de l'Ardenne : la hêtraie. A l'échelle de la forêt wallonne, l'inventaire forestier régional (RONDEUX et al., 1982; RONDEUX, 1983) constitue un outil intéressant pour aborder le sujet et montrer à quel point il est devenu préoccupant. Après avoir précisé le contexte dans lequel l'étude se place (paragraphe 2), nous caractérisons au moyen de chiffres inédits, l'importance actuelle du matériel ligneux de nos hêtraies (paragraphe 3). Nous analyserons ensuite leur structure et leur composition (paragraphe 4), avant d'identifier ce que pourraient être les conditions d'une situation plus favorable (paragraphe 5). Les paragraphes 6 et 7 seront respectivement consacrés à quelques réflexions et conclusions qu'il nous a paru opportun de soumettre à l'attention du lecteur. [less ▲]

Detailed reference viewed: 17 (3 ULg)
Full Text
See detailConsidérations sur le taux du ressort lorsque les bases de détermination de la valeur du litige font défaut
Boularbah, Hakim ULg

in Revue de Droit Judiciaire et de la Preuve = Tijdschrift voor Procesrecht en Bewijsrecht (2001)

Detailed reference viewed: 10 (0 ULg)
Full Text
See detailConsidérations sur les identifications dans les spectres cométaires
Rosen, B.; Swings, Polydore ULg; Houziaux, L.

in Annales d'astrophysique (1957), 20

Une comparaison minutieuse des spectres comitaires et des spectres de nombreux composes de l'hydrogène, du carbone et de l'oxygène n'a révélé aucune importante nouvelle identification cométaire. La ... [more ▼]

Une comparaison minutieuse des spectres comitaires et des spectres de nombreux composes de l'hydrogène, du carbone et de l'oxygène n'a révélé aucune importante nouvelle identification cométaire. La difficulté principale est due à l'imprécision des longueurs d'onde cométaires. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Peer Reviewed
See detailConsiderations sur les structures dites lamellaires de l'oeuf de rat non feconde.
Baeckeland, E.; Heinen, Ernst ULg

in Bulletin de l'Association des Anatomistes (1980), 64(185), 173-81

The ultrastructural study of the unfertilized Rat egg ooplasm has shown that the so-called lamellar structures are in fact filaments constituted of proteins and where no ribonucleic acid can be detected ... [more ▼]

The ultrastructural study of the unfertilized Rat egg ooplasm has shown that the so-called lamellar structures are in fact filaments constituted of proteins and where no ribonucleic acid can be detected. Thus, they do not represent a particular organization of polyribosomes. These filaments could be considered as protein stockage, maybe from membranous origin, ready for use during segmentation. Several figures suggest that endocytotic vesicles and vacuoli constitute the source of the filamentous material. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Full Text
See detailConsidérations sur quelques visions mystiques à l'abbaye Saint-Laurent de Liège
Close, Florence ULg

Conference given outside the academic context (2013)

Cette conférence entendait exposer les raisons de l'auteur de privilégier la thèse d'un foyer bénédictin rhéno-mosan de visionnaires de la Trinité au XIIe siècle, à l'appui de considérations d'ordre ... [more ▼]

Cette conférence entendait exposer les raisons de l'auteur de privilégier la thèse d'un foyer bénédictin rhéno-mosan de visionnaires de la Trinité au XIIe siècle, à l'appui de considérations d'ordre historique, liturgique, théologique et iconographique. [less ▲]

Detailed reference viewed: 26 (6 ULg)
Full Text
Peer Reviewed
See detailConsidérations théoriques et pratiques sur la portée des arrêts de la Cour d’arbitrage
Rosoux, Géraldine ULg; Tulkens, François

in La Cour d’arbitrage, un juge comme les autres ?, Actes du colloque organisé le 28 mai 2004 par la Faculté de droit de l’Université de Liège (Service de droit constitutionnel) et la Conférence libre du Jeune Barreau de Liège (2004)

This articles questions about the effects of the decisions of the Belgian constitutional court.

Detailed reference viewed: 89 (8 ULg)
Full Text
Peer Reviewed
See detailConsidering bottom curvature in depth-averaged open-channel flow modelling, based on curvilinear coordinates
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Pirotton, Michel ULg

in Advances in Fluid Mechanics VII (2008)

Accurately modelling open-channel flows on strongly vertically curved bottoms, such as for instance over a spillway, is a challenge for any depth-averaged flow model. This type of computation requires the ... [more ▼]

Accurately modelling open-channel flows on strongly vertically curved bottoms, such as for instance over a spillway, is a challenge for any depth-averaged flow model. This type of computation requires the use of axes properly inclined along the mean flow direction in the vertical plane and a modelling of curvature effects. The present generalized model performs such computations by means of curvilinear coordinates in the vertical plane, enabling for instance to simulate within one single computation domain the flows in the upstream reservoir, over the spillway, in the stilling basin and in the river reach downstream of a dam. The frame of reference is chosen in such a way that one of the two curvilinear axes follows the local bottom curvature. Hence the set of generalized shallow water equations involves explicitly not only the channel bottom slope, but also the channel vertical curvature and its derivative. The velocity profile is generalized in comparison with the uniform one usually assumed in the conventional shallow-water equations. The pressure distribution is also modified as a function of the bottom curvature and is thus not purely hydrostatic but accounts for effects of centrifugal forces. This enhanced mathematical modelling framework has been implemented in a 2D finite volume model. A specific flux vector splitting technique has been developed and demonstrated to be stable for any flow regime and any bottom curvature. The scheme offers the advantage of being dependent only on the sign of the bottom curvature. For a vanishing bottom curvature, the new model converges smoothly towards the conventional shallow-water equations. Finally, two test cases are detailed and lead to satisfactory validation results for the new model. [less ▲]

Detailed reference viewed: 62 (2 ULg)
Full Text
Peer Reviewed
See detailConsidering Laminated Cores and Eddy Currents in 2D and 3D Finite Element Simulation of Electrical Machines
Gyselinck, Johan; Geuzaine, Christophe ULg; V Sabariego, Ruth ULg

(2011)

This paper deals with a time-domain homogeniza- tion method for laminated cores and its application to the 2D finite element simulation of rotating electrical machines. The number of additional degrees of ... [more ▼]

This paper deals with a time-domain homogeniza- tion method for laminated cores and its application to the 2D finite element simulation of rotating electrical machines. The number of additional degrees of freedom of the model, for considering the variation of the flux density along the lamination thickness, can be tuned so as to reach a good compromise between accuracy and computation time. The results obtained for a switched reluctance motor agree very well with those produced by a precise full 3D model in which eddy currents are explicitly modeled. [less ▲]

Detailed reference viewed: 81 (3 ULg)
Full Text
Peer Reviewed
See detailConsidering non-alluvial layers in morphodynamic modelling
Rulot, François ULg; Erpicum, Sébastien ULg; Dewals, Benjamin ULg et al

Conference (2011, November)

Detailed reference viewed: 7 (3 ULg)
Full Text
Peer Reviewed
See detailConsidering the effects of localised fires in the numerical analysis of a building structure
Franssen, Jean-Marc ULg; Pintea, Dan; Dotreppe, Jean-Claude ULg

in Fire Safety Journal (2007), 42(6-7, SEP-OCT), 473-481

The methodologies that are used for analysing the fire behaviour of a structure that is subjected to a uniform thermal situation cannot be applied when the fire is localised. The concept of "zoning" can ... [more ▼]

The methodologies that are used for analysing the fire behaviour of a structure that is subjected to a uniform thermal situation cannot be applied when the fire is localised. The concept of "zoning" can be applied: the structure is divided into several zones in which the situation is approximated as uniform. It is shown here that this division can lead to spurious forces in the structure. The structural code of the first author has been adapted in order to accommodate a continuous spatial variation of the fire environment. A series of uncoupled 2D thermal analyses is performed along the length of the beam finite elements and a series of ID thermal analyses is performed across the thickness of the shell finite elements. After a discussion of the concept and the particularities dictated by the continuous thermal environment, the methodology utilised is explained and is shown in an example consisting of a composite steel concrete car park subjected to a localised fire of the type given in Eurocode 1. (C) 2007 Elsevier Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 61 (4 ULg)
Full Text
See detailConsistance de l'étude linéarisée des structures précontraintes
Debongnie, Jean-François ULg

Report (1991)

The linearized study of pre-stressed structures is, by far, not a novelty. But its practical application led to a lot of disappointments, especially concerning rigid body modes, so that it seemed useful ... [more ▼]

The linearized study of pre-stressed structures is, by far, not a novelty. But its practical application led to a lot of disappointments, especially concerning rigid body modes, so that it seemed useful to try a restatement of this subject. After an exposition of the principles of this formulation, the attention is focused on the numerous simplifications which are commonly done, by tradition or for sake of simplicity. This study is illustrated by a lot of examples whose purpose is an aid for the physical understanding of the problem. [less ▲]

Detailed reference viewed: 17 (1 ULg)
Full Text
See detailConsistance du lissage des contraintes par convolution
Debongnie, Jean-François ULg

Report (2001)

A systematic stress smoothing procedure is proposed on the basis of a convolution process. It is then found that in order to be effective, use has to be made of kernels satisfying to a consistency ... [more ▼]

A systematic stress smoothing procedure is proposed on the basis of a convolution process. It is then found that in order to be effective, use has to be made of kernels satisfying to a consistency condition, that is, the true stress has not to be changed by the convolution process. A family of consistent kernels is then obtained for biharmonic stresses through a step whose inspiration comes from a book of Parton and Perline. Examples are given. [less ▲]

Detailed reference viewed: 41 (3 ULg)
Full Text
Peer Reviewed
See detailConsistency of fuzzy model-based reinforcement learning
Busoniu, Lucian; Ernst, Damien ULg; Babuska, Robert et al

in Proceedings of the 2008 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE-08) (2008)

Reinforcement learning (RL) is a widely used paradigm for learning control. Computing exact RL solutions is generally only possible when process states and control actions take values in a small discrete ... [more ▼]

Reinforcement learning (RL) is a widely used paradigm for learning control. Computing exact RL solutions is generally only possible when process states and control actions take values in a small discrete set. In practice, approximate algorithms are necessary. In this paper, we propose an approximate, model-based Q-iteration algorithm that relies on a fuzzy partition of the state space, and a discretization of the action space. Using assumptions on the continuity of the dynamics and of the reward function, we show that the resulting algorithm is consistent, i.e., that the optimal solution is obtained asymptotically as the approximation accuracy increases. An experimental study indicates that a continuous reward function is also important for a predictable improvement in performance as the approximation accuracy increases. [less ▲]

Detailed reference viewed: 18 (3 ULg)
Full Text
Peer Reviewed
See detailConsistency of Neuropsychiatric Syndromes across Dementias: Results from the European Alzheimer Disease Consortium
Aalten, Pauline; Verhey, Frans R. J.; Boziki, Marina et al

in Dementia & Geriatric Cognitive Disorders (2008), 25(1), 1-8

Background/Aims: The aim of this study was to determine the consistency of neuropsychiatric subsyndromes of the Neuropsychiatric Inventory across several clinical and demographic subgroups ( e. g ... [more ▼]

Background/Aims: The aim of this study was to determine the consistency of neuropsychiatric subsyndromes of the Neuropsychiatric Inventory across several clinical and demographic subgroups ( e. g. dementia subtypes, dementia severity, medication use, age and gender) in a large sample of outpatients with dementia. Methods: Cross-sectional data of 2,808 patients with dementia from 12 centres from the European Alzheimer's Disease Consortium were collected. Principal component analysis was used for factor analysis. Subanalyses were performed for dementia subtypes, dementia severity, medication use, age and gender. Results: The results showed the relatively consistent presence of the 4 neuropsychiatric subsyndromes `hyperactivity', `psychosis', `affective symptoms' and `apathy' across the subanalyses. The factor structure was not dependent on dementia subtypes, age and gender but was dependent on dementia severity and cholinesterase use. The factors hyperactivity and affective symptoms were present in all subanalyses, but the presence of the factors apathy and psychosis was dependent on use of cholinesterase inhibitors and dementia severity, respectively. Conclusion: The present study provided evidence of the relative consistency of neuropsychiatric subsyndromes across dementia subtypes, age and gender, thereby stressing the importance of thinking about neuropsychiatric subsyndromes instead of separate symptoms. However, the subsyndromes apathy and psychosis were dependent on use of cholinesterase inhibitors and dementia severity. Copyright (c) 2007 S. Karger AG, Basel. [less ▲]

Detailed reference viewed: 47 (5 ULg)
Full Text
See detailConsistency of stress smooting by convolution
Debongnie, Jean-François ULg; Beckers, Pierre ULg

Conference (2001, March)

A convolution process is presented in order to smoothen finite element stresses. A comprehensive analysis leads to the fact that a pertinent choice of the convolution kernel has to be done, as consistency ... [more ▼]

A convolution process is presented in order to smoothen finite element stresses. A comprehensive analysis leads to the fact that a pertinent choice of the convolution kernel has to be done, as consistency conditions have to be satisfied. Such kernels are then presented. [less ▲]

Detailed reference viewed: 29 (8 ULg)