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See detailVereinfachtes Verfahren zur Abschätzung der Wirkung der Nichtlinearität der aerodynamischen Koeffizienten
Denoël, Vincent ULg; Sedlacek, Gerhard

in Stahlbau (2006), 75(5), 380-388

Wind analysis of a structure subjected to non-linear random dynamic loading Since the early developments in wind engineering, aerodynamic coefficients have been linearized in turbulence analysis. On the ... [more ▼]

Wind analysis of a structure subjected to non-linear random dynamic loading Since the early developments in wind engineering, aerodynamic coefficients have been linearized in turbulence analysis. On the other hand general and complex methods based on generalized power spectral densities can now handle this kind of non linearity. Between these two extremes, it would be desirable to give simple estimation of the effects of the non linearity of aerodynamic coefficients on the response of structures. This paper aims at giving an overview of these general and complex methodologies (that could be applied in other contexts), and, in a second step, presenting an original procedure to give estimation of the effects of the non linearity of aerodynamic coefficients. This procedure will be illustrated on the drag coefficient of the Viaduct of Millau [less ▲]

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See detailLa notion de biens
Vanbrabant, Bernard ULg; Lecocq, Pascale ULg; sagaert, vincent

in Leleu, Yves-Henri (Ed.) Rapports belges au XVIIème colloque de l'Académie internationale de droit comparé (2006)

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See detailElectrophysiological response patterns of primary sensory cortices in migraine.
Ambrosini, Anna; Schoenen, Jean ULg

in Journal of Headache & Pain (2006), 7(6), 377-88

Migraine is an ictal disorder characterised by a particular vulnerability of patients to sensory overload, both during and outside of the attack. Central nervous system dysfunctions are supposed to play a ... [more ▼]

Migraine is an ictal disorder characterised by a particular vulnerability of patients to sensory overload, both during and outside of the attack. Central nervous system dysfunctions are supposed to play a pivotal role in migraine. Electroneurophysiological methods, which aim to investigate sensory processing, seem thus particularly appropriate to study the pathophysiology of migraine. We have thus reviewed evoked potential studies performed in migraine patients. Although results are in part contradictory, these studies nonetheless demonstrate an interictal dysfunction of sensory cortices, and possibly of subcortical structures, in migraine with and without aura. The predominant abnormality is a deficient habituation of evoked responses to repeated stimuli, probably due to cortical, and possibly widespread neural, "dysexcitability". [less ▲]

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See detailQuelques réflexions sur l’avenir des courtes peines d’emprisonnement en Belgique
Jacobs, Ann ULg

in Revue de la Faculté de Droit de l'Université de Liège (2006)

Devant le constat que les courtes peines d'emprisonnement ont tendance à se multiplier alors que leur exécution est tout à fait problématique, l'article s'interroge sur les causes de cette multiplication ... [more ▼]

Devant le constat que les courtes peines d'emprisonnement ont tendance à se multiplier alors que leur exécution est tout à fait problématique, l'article s'interroge sur les causes de cette multiplication des courtes peines d'emprisonnement ainsi que sur les moyens dont dispose le législateur pour limiter leur prononcé. [less ▲]

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See detailÀ la recherche de l'œuvre perdue d'Héliodore
Marganne, Marie-Hélène ULg

in Boudon Millot, Véronique; Garzya, Antonio; Jouanna, Jacques (Eds.) et al Ecdotica e ricezione dei testi medici greci. Atti del V Convegno internazionale, Napoli, 1-2 ottobre 2004 (2006)

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See detailMicrobial ecology of the closed artificial ecosystem MELiSSA (Micro-Ecological Life Support System Alternative): Reinventing and compartmentalizing the Earth's food and oxygen regeneration system for long-haul space exploration missions
Hendrickx, Larissa; De Wever, Heleen; Hermans, Veronik et al

in Research in Microbiology (2006), 157

MELiSSA is a bioregenerative life support system designed by the European Space Agency (ESA) for the complete recycling of gas, liquid and solid wastes during long distance space exploration. The system ... [more ▼]

MELiSSA is a bioregenerative life support system designed by the European Space Agency (ESA) for the complete recycling of gas, liquid and solid wastes during long distance space exploration. The system uses the combined activity of different living organisms: microbial cultures in bioreactors, a plant compartment and a human crew. In this minireview, the development of a short-cut ecological system for the biotransformation of organic waste is discussed from a microorganism's perspective. The artificial ecological model—still in full development—that is inspired by Earth's own geomicrobiological ecosystem serves as an ideal study object on microbial ecology and will become an indispensable travel companion in manned space exploration. [less ▲]

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See detail'Maroons'
Pagnoulle, Christine ULg

in Literary encyclopedia (2006)

In the 17th and 18th centuries slaves rebelled and ran away. Those who made it to the hills of the Caribbean islands were called Marroons. The tradition of independent living has perdured, and has now ... [more ▼]

In the 17th and 18th centuries slaves rebelled and ran away. Those who made it to the hills of the Caribbean islands were called Marroons. The tradition of independent living has perdured, and has now become part of a critical literary approach. [less ▲]

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See detailReducing the uncertainty of hydrogeological parameters by co-conditional simulations: lessons from practical applications in aquifers and in low permeability layers
Dassargues, Alain ULg; Rentier, Céline; Huysmans, Marijke

in Calibration and Reliability in Groundwater Modelling: From Uncertainty to Decision Making (2006)

Stochastic simulation of aquifer heterogeneity is now often performed to provide a confidence interval of the modelled results for flow and solute transport problems. In practice, due to the few available ... [more ▼]

Stochastic simulation of aquifer heterogeneity is now often performed to provide a confidence interval of the modelled results for flow and solute transport problems. In practice, due to the few available measurements of the hydraulic conductivity (hard data), it is useful to integrate several other properties of the medium as indirect data (soft data). The additional conditioning obtained from the use of these secondary data allows reduction of the variance of the distribution and consequently decrease of the uncertainty of the results. This practice can also be extended to low permeability clay layers. For example, stochastic sequential simulation can be performed involving hydraulic conductivity values as hard data, and grain size measurements, electrical resistivity log, gamma ray log and a description of the lithology variation as soft data. However, other important properties can also be considered. The possible fracturing of clay strongly influences the flow and solute transport. On the other hand, in very low permeability media, diffusion can be considered as the dominant transport mechanism, so that heterogeneity in terms of the effective diffusion coefficient becomes important. Examples of application are summarized considering aquifers and low permeability clay layers. It clearly shows the great advantage of collecting multiple data sets of inter-correlated data on the same geological medium to be modelled. In high conductivity aquifers as well as in low permeability layers, this kind of additional conditioning obtained from various data is always useful when considering applications such as, among many others, well capture zones delineation, impact studies and geological confinement of wastes. [less ▲]

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See detailInternal particle size distribution of biofuel pellets
Daugbjerg Jensen, Peter; Temmerman, Michaël ULg; Westborg, Suzanne

in Fuel (2006)

Several methods for disintegration of biofuel pellets were tested and compared for their ability to break up the pellets into the original particles of the raw material. Analyses performed on softwood ... [more ▼]

Several methods for disintegration of biofuel pellets were tested and compared for their ability to break up the pellets into the original particles of the raw material. Analyses performed on softwood pellets and straw pellets concluded that wet disintegration in water at ambient temperature is insufficient for a determination of the internal particle size distribution of wood- and straw pellets. When the wet disintegration was performed with water heated to the boiling point and coupled with mechanical disintegration in terms of stirring a more complete disintegration of the pellets was obtained. Based on the results obtained in the initial study a round robin was set up including six European laboratories where the selected method was tested. In the round robin test the method combining heated water and stirring of the slurry was tested on solid biofuel pellets produced of comminute straw, deciduous wood and coniferous wood respectively. With the method a satisfactory disintegration was obtained of all three types of pellets. Further wet disintegration of coniferous pellets was compared to a dry disintegration using a hammer mill. The dry disintegration of the coniferous pellets resulted in smaller particle sizes compared to the wet disintegration using heated water and stirring of the slurry indicating a further disintegration of the original particles in the hammer mill process. Overall the wet disintegration combined with mechanical impact was found to be the most suitable method for disintegration of solid biofuel pellets. Combined with sieving analysis the method gives realistic image of the internal particle size distribution of solid biofuel pellets. [less ▲]

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See detailAnalyse qualitative de la problématique de l’abandon de la natation de compétition en Communauté française de Belgique
Lefefvre, Fabien; Habsch, Ingrid; Cloes, Marc ULg

in Carlier, Ghislain; Bouthier, Daniel; Bui-Xuän, G. (Eds.) Intervenir en éducation physique et en sport. Recherches actuelles (2006)

Dans cette étude, nous aborderons le phénomène de l’abandon de la pratique compétitive de la natation en privilégiant une approche qualitative, contrairement à ce qui a déjà été proposé dans la ... [more ▼]

Dans cette étude, nous aborderons le phénomène de l’abandon de la pratique compétitive de la natation en privilégiant une approche qualitative, contrairement à ce qui a déjà été proposé dans la littérature. En récoltant des données chez les différents acteurs de clubs, nous ambitionnons de mieux cerner le phénomène et, surtout, de croiser les données issues des pratiquants avec celles des autres personnages clés de la réussite sportive. Mettre en exergue les solutions imaginées par les dirigeants sportifs pour lutter contre ce phénomène et offrir une base de réflexion et d’action aux praticiens constituent les finalités pratiques de cette étude. [less ▲]

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See detailScreening cardiovascular risk factors in general population remains a useful tool
Saint-Remy, Annie ULg; Krzesinski, Jean-Marie ULg

in Kidney & Blood Pressure Research (2006), (29), 248

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See detailTime series of the partial pressure of carbon dioxide (2001 2004) and preliminary inorganic carbn budget in the Scheldt plume (Belgian coastal waters)
Schiettecatte, L.-S.; Gazeau, F.; van der Zee, C. et al

Poster (2006)

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See detailRevision of the Belgian Nursing Minimum Dataset: from data to information
SERMEUS, Walter; VAN DEN HEEDE, Koen; MICHIELS, Dominik et al

in Studies in Health Technology & Informatics (2006), 122

The Ministry of Public Health commissioned a research project to the Catholic University of Leuven and the University Hospital of Liege to revise the Belgian Nursing Minimum Dataset (B-NMDS). The study ... [more ▼]

The Ministry of Public Health commissioned a research project to the Catholic University of Leuven and the University Hospital of Liege to revise the Belgian Nursing Minimum Dataset (B-NMDS). The study started in 2000 and will end with the implementation of the revised B-NMDS in January 2007. The study entailed four major phases. The first phase involved the development of a conceptual framework based on a literature review and secondary data analysis. The second phase focused on language development and development of a data collection tool. The third phase focused on data collection and validation of the new tool. In the fourth phase the validity and reliability of the dataset was tested. The new dataset is without avail if it is not leading to new information. Four applications of the dataset has been defined from the beginning: evaluation of the appropriateness of stay (AEP) in the hospital, nurse staffing, hospital financing and quality management. The aim of this paper is to describe how the B-NMDS can contribute to each of these applications. [less ▲]

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See detailTen geleide
Spinoy, Erik ULg

in Freespace Nieuwzuid (2006), 6(21), 5

This is an introduction to a special issue of Nieuwzuid on the writing of literary history.

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See detailMieux mesurer l'arthrose.
Henrotin, Yves ULg

Article for general public (2006)

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