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See detailRhétorique de l’explication dans le récit fantastique. Une lecture de La ruelle ténébreuse de Jean Ray
Durand, Pascal ULg

in Etudes francophones (2008), 23/1-2(printemps-automne 2008), 10-33

Le genre fantastique, contrairement à l'opinion spontanée, repose, dans ses réalisations majeures, sur une logique rigoureuse dans la conduite de l'explication surnaturelle. Le présent article propose un ... [more ▼]

Le genre fantastique, contrairement à l'opinion spontanée, repose, dans ses réalisations majeures, sur une logique rigoureuse dans la conduite de l'explication surnaturelle. Le présent article propose un modèle de fonctionnement de la rhétorique de cette explication à partir d'une lecture approfondie de "La ruelle ténébreuse", l'un des contes les plus réussis du belge Jean Ray. [less ▲]

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See detailSurface Impedance Boundary Conditions for the Modeling of Saturable Massive Conducting Volumes in Time-Domain Finite-Element Calculations
Gyselinck, Johan; Dular, Patrick ULg; Geuzaine, Christophe ULg et al

in Proceedings of 6ème Conférence Européenne sur les Méthodes Numériques en Electromagnétisme (NUMELEC2008) (2008)

The authors propose a novel nonlinear time-domain extension of the well-known frequency-domain surface-impedance method in computational magnetodynamics. Herein the 1-D eddy-current problem in a massive ... [more ▼]

The authors propose a novel nonlinear time-domain extension of the well-known frequency-domain surface-impedance method in computational magnetodynamics. Herein the 1-D eddy-current problem in a massive conducting region (semi-infinite slab) is considered via a number of exponentially decreasing trigonometric basis functions that cover the relevant frequency range of the application at hand. The resulting nonlinear equations are solved using the Newton-Raphson method. The method is validated by means of a simple 2-D test case. [less ▲]

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See detailThe Perturbation Finite Element Method for Magnetic Modeling of a Loudspeaker
Ferreira da Luz, Mauricio V.; Dular, Patrick ULg; V Sabariego, Ruth ULg et al

in Proceedings of 6ème Conférence Européenne sur les Méthodes Numériques en Electromagnétisme (NUMELEC2008) (2008)

This paper shows that the application of a perturbation finite element method can provide a useful alternative to correct the equivalent magnetic circuits used to model loudspeakers. A ring magnet design ... [more ▼]

This paper shows that the application of a perturbation finite element method can provide a useful alternative to correct the equivalent magnetic circuits used to model loudspeakers. A ring magnet design of a loudspeaker is modeled by means of an axisymmetric magnetic vector potential formulation. The effects of geometry variations on its performances are analyzed. The perturbation solution allows further adapting and refining the equivalent magnetic circuit model of the loudspeaker to each possible variation. Results will be compared with the classical finite element solution. [less ▲]

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See detailA new method to determine tissue specific tissue factor thrombomodulin activities: endotoxin and particulate air pollution induced disbalance.
Frederix, Kim ULg; Kooter, Ingeborg M; van Oerle, Rene et al

in Thrombosis Journal (2008), 6(14), 14

ABSTRACT: BACKGROUND: Increase in tissue factor (TF) and loss in thrombomodulin (TM) antigen levels has been described in various inflammatory disorders. The functional consequences of such changes in ... [more ▼]

ABSTRACT: BACKGROUND: Increase in tissue factor (TF) and loss in thrombomodulin (TM) antigen levels has been described in various inflammatory disorders. The functional consequences of such changes in antigen concentrations in the coagulation balance are, however, not known. This study was designed to assess the consequences of inflammation-driven organ specific functional properties of the procoagulant response. METHODS: Tissue specific procoagulant activity was assessed by adding tissue homogenate to normal human pool plasma and recording of the thrombin generation curve. The new technique was subsequently applied on two inflammation driven animal models: 1) mouse lipopolysaccharide (LPS) induced endotoxemia and 2) spontaneously hypertensive rats exposed to environmental air pollution (particulate matter (PM). RESULTS: Addition of lung tissue from untreated animals to human plasma suppressed the endogenous thrombin potential (ETP) (175 +/- 61 vs. 1437 +/- 112 nM.min for control). This inhibitory effect was due to TM, because a) it was absent in protein C deficient plasma and b) lungs from TMpro/pro mice allowed full thrombin generation (ETP: 1686 +/- 209 nM.min). The inhibitory effect of TM was lost after LPS administration to mice, which induced TF activity in lungs of C57Bl/6 mice as well as increased the ETP (941 +/- 523 vs. 194 +/- 159 nM.min for control). Another pro-inflammatory stimulus, PM dose-dependently increased TF in the lungs of spontaneously hypertensive rats at 4 and 48 hours after PM exposure. The ETP increased up to 48 hours at the highest concentration of PM (1441 +/- 289 nM.min vs. saline: 164 +/- 64 nM.min, p < 0.0001), suggesting a concentration- and time dependent reduction in TM activity. CONCLUSION: Inflammation associated procoagulant effects in tissues are dependent on variations in activity of the TF-TM balance. The application of these novel organ specific functional assays is a useful tool to monitor inflammation-driven shifts in the coagulation balance within animal or human tissues. [less ▲]

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See detailCharacterization of lactic acid bacteria isolated from poultry farms in Senegal
Coulibaly, Ibourahema ULg; Dubois Dauphin, Robin ULg; Destain, Jacqueline ULg et al

in African Journal of Biotechnology (2008), 7(12), 2006-2012

The group that includes the lactic acid bacteria is one of the most diverse groups of bacteria known and these organisms have been characterized extensively by using different techniques. In this study ... [more ▼]

The group that includes the lactic acid bacteria is one of the most diverse groups of bacteria known and these organisms have been characterized extensively by using different techniques. In this study, thirty lactic acid bacterial strains were isolated from soils chicken faeces and feathers. A total of nineteen isolates were obtained and by sequential screening for catalase activity and Gram-staining, eight were determined to be LAB out of which six were established to be homofermentative by the gel plug test. Five isolates were identified by use of the API 50CHL kit and four Lactobacilli strains and one Lactococci strain were selected to study their growth and lactic acid production profiles in a time course experiment. The Lactobacilli strains, both isolated from faeces, produced higher amounts of cells and lactic acid from soils as compared to the lactococci strain isolated from feathers. L (+)-lactic acid is the only optical isomer for use in pharmaceutical and food industries because is only adapted to assimilate this form. The optical isomers of lactic acid were examined by L (+) and D (-) lactate dehydrogenase kit. Lactobacilli strains produced combination of both optical isomers of lactic acid. Among them, Lactobacillus casei subsp. casei produced the low amount of D (-)-lactic (2%). The optimum rates of glucose for lactic acid production by Lactobacillus strains were 180 and 120 g/l for Lactobacillus plantarum and Lactobacillus paraplantarum, respectively. [less ▲]

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See detailGait analysis during an original walking test
Croisier, Jean-Louis ULg; Crielaard, Jean-Michel ULg; Chapelier, Dominique et al

in Parkinsonism & Related Disorders (2008), 14

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See detailLes cibles hormonales de la réponse auto-immune
Geenen, Vincent ULg

in Annales d'Endocrinologie (2008), 69

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See detailHLA genetics in 'latent' autoimmune diabetes of adults (LADA)
Geenen, Vincent ULg

in International Diabetes Monitor (2008), 20

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See detailTransboundary river contract Semois-Semoy between Belgium and France
Rosillon, Françis ULg; Lobet, Jérôme ULg

in Meire, P. (Ed.) Integrated water management : practical experiences and case studies (2008)

Through dialogues between partners, a river contract intends to develop and restore the multiple functions and uses of water in answer to the needs of a community of users. Under this scheme, both ... [more ▼]

Through dialogues between partners, a river contract intends to develop and restore the multiple functions and uses of water in answer to the needs of a community of users. Under this scheme, both government and private-sector players commit themselves by means of a contract to implement a consensus action programme to restore the river and its drainage basin’s water resources. Information and awareness campaigns are added to concrete actions of waterway development and different sorts of work connected to water. The river committee is a place for democratic speech where the familiar rubs shoulders with the institutional, where citizens meet operators, where the life forces of society are finally brought together to take charge of their river’s future and their relationship with the river. In this way, a joint project has been bringing together Belgian and French protagonists since 1999, trough the Interreg II and Interreg III operational programmes. They work now together in a joint management of the river and its tributaries, this time on the scale of the entire Semois-Semoy hydrographical subdrainage basin. This article describe the concept and the methodology of this concrete transboundary collaboration, the results and the perspectives. [less ▲]

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See detailComponent method for steel column base plates
Wald, F.; Sokol, Z.; Steenhuis, C. M. et al

in Heron (2008), 53(1/2),

This paper presents the application of the component method to steel column bases. The decomposition of the connection into components is described. An analytical model is presented to determine the ... [more ▼]

This paper presents the application of the component method to steel column bases. The decomposition of the connection into components is described. An analytical model is presented to determine the moment resistance and the rotational stiffness of column bases under axial forces. The analytical model is verified with test results. A sensitivity study of the base plate thickness and the anchor bolt length is presented. [less ▲]

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See detailSteel column base classification
Jaspart, Jean-Pierre ULg; Wald, F.; Weynand, K. et al

in Heron (2008), 53(1/2),

The influence of the rotational characteristics of the column bases on the structural frame response is discussed and specific design criteria for stiffness classification into semi-rigid and rigid joints ... [more ▼]

The influence of the rotational characteristics of the column bases on the structural frame response is discussed and specific design criteria for stiffness classification into semi-rigid and rigid joints are derived. The particular case of an industrial portal frame is then considered. [less ▲]

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See detailRed-eared Slider Turtles (Trachemy scripta elegans) Introduced to French Urban Wetlands . An Intergrated Research and Conservation Program.
Teillac-Deschamps, Pauline; Delmas, Virginie; Lorrillière, Romain et al

in Herpetological Conservation (2008), 3

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See detailLa ville. Un dénominateur commun.
Prévôt-Julliard, Anne-Caroline; Servais, Véronique ULg

in Garnier, Lisa (Ed.) Entre l'Homme et la nature, une démarche pour des relations durables. (2008)

Common sense reprensent nature as wild places, apart and far from human influence. But fauna and flora are present in cities. The paper asks whether it is possible to use the relationship with this ... [more ▼]

Common sense reprensent nature as wild places, apart and far from human influence. But fauna and flora are present in cities. The paper asks whether it is possible to use the relationship with this ordinary nature to have people living in cities more interested in conservation. [less ▲]

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See detailA systematic procedure to predict flows induced by major dysfunctions on complexes or cascades of dams
Dewals, Benjamin ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Proceedings of the 3rd IAHR-International Symposium on Hydraulic Structures (2008)

Hazard analysis of dams arranged in complex or in cascade may involve the assessment of a large number of different scenarios of combined failures. However, a tremendous computation time would be needed ... [more ▼]

Hazard analysis of dams arranged in complex or in cascade may involve the assessment of a large number of different scenarios of combined failures. However, a tremendous computation time would be needed to perform a detailed modeling of the flows generated by all possible scenarios. Therefore, the present paper describes a rational methodology for analyzing the flows induced by the most relevant incidents occurring on a complex or in a cascade of dams and reservoirs. The methodology combines several hydrodynamic models, including the twodimensional flow solver WOLF 2D and a simplified lumped hydrodynamic model, to simulate (i) the flows induced on the dams complex, (ii) the potential breaching in cascade of other dams, as well as (iii) the propagation of the flood wave in the whole downstream valley. The application of the methodology to a practical case study involving a complex of five dams is also described. [less ▲]

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See detailAn explicit projection method for solving incompressible Navier-Stokes equations
Detrembleur, Sylvain ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Proceedings of the 2nd International Junior Researcher and Engineer Workshop on Hydraulic Structures (2008)

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See detailAutomatic shape optimization with GAs and a 2D free surface flow solver
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Pirotton, Michel ULg

in Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

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See detailDam-break flow computation using high resolution DEM
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Hogge, Michel; Van Keer, R.; Noels, L. (Eds.) et al Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

Dam-break flow computation is a task of prime interest in the scope of risk analysis processes related to dams and reservoirs. High resolution Digital Elevation Models (DEMs) available today provide ... [more ▼]

Dam-break flow computation is a task of prime interest in the scope of risk analysis processes related to dams and reservoirs. High resolution Digital Elevation Models (DEMs) available today provide extremely dense and accurate topography information in the valley downstream of these structures, even in urban area. In this paper, a 2D finite volume flow solver, able to deal with these DEMs, is presented in details. Validation examples are comprehensively described. [less ▲]

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