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See detailScale modelling and similarity laws for the study of an under pressure settling structure
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Proceedings of the 9th International Symposium on River Sedimentation (2004)

This paper presents the scale model studies of a complex under pressure settling structure, carried out at the Laboratory of Hydraulic Constructions of the University of Liège. Made up of fourteen ... [more ▼]

This paper presents the scale model studies of a complex under pressure settling structure, carried out at the Laboratory of Hydraulic Constructions of the University of Liège. Made up of fourteen identical settling chambers placed side by side and the bottom of which is divided into pyramidal hoppers, the structure, totally under pressure, is fed by a vertical shaft. Downstream, the settling chambers discharge into a collector, which ensures the clean water feeding of four penstocks through a free surface basin. Finally, a pipes network, under the chambers, ensures the downstream evacuation of the sand trapped in the hoppers. Using adapted and theoretically justified similarity laws coupled with realistic scales for the models, the hydrodynamic behavior and solid transport phenomena in this complex system have been studied. Special care has been taken to evaluate the trap efficiency, the evacuation system working and the global discharge repartition between the fourteen chambers. Sawdust, plastic balls or very small sand particles have been used to model real sediments. A total of three models, from only one hopper to the full settling structure, have been built, with scales from 1/18.5 to 1/100. According to the results of the studies, the length of the settling chambers has been shortened of up to 38 meters, i.e. 2 hoppers, and best use instructions have been suggested for the sediment evacuation system. [less ▲]

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See detailComparative analysis of the predictive capacity of breaching models for an overtopped rockfill dam
Dewals, Benjamin ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Proceedings of the International Workshop "Stability and Breaching of Embankment Dams" (2004)

The paper covers a brief description and a comprehensive comparative analysis of several state-of-the-art dam breaching models. The study is specifically focused on the applicability and on the predictive ... [more ▼]

The paper covers a brief description and a comprehensive comparative analysis of several state-of-the-art dam breaching models. The study is specifically focused on the applicability and on the predictive capacity of the models for the gradual breaching of an overtopped rockfill dam. A wide range of modelling techniques is reviewed, from process-oriented numerical simulations to empirical models. Comparisons are performed regarding various aspects, such as the applicability of the model without prior calibration or the possibility of coupling the breaching model with a quasi-3D flow solver such as WOLF. Finally, a sensitivity analysis of the downstream hydrograph to various parameters is conducted and the conclusions drawn are illustrated in the case of a large-scale real application in Belgium. [less ▲]

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See detailLa rationalisation dans l'industrie belge de l'Entre-deux-guerres
Geerkens Provin, Eric ULg

Book published by Palais des Académies (2004)

L'industrie belge a-t-elle fait, dans la première moitié du XXème siècle, l'expérience de ce qui, dans des pays voisins, a été étudié sous le nom de rationalisation, ou en a-t-elle été empêchée par la ... [more ▼]

L'industrie belge a-t-elle fait, dans la première moitié du XXème siècle, l'expérience de ce qui, dans des pays voisins, a été étudié sous le nom de rationalisation, ou en a-t-elle été empêchée par la prépondérance en son sein d'activités anciennes, nées de la Révolution industrielle? Pour répondre à cette question, ce livre fait le choix de donner un très large aperçu de mesures d'organisation, saisies autant que possible à l'échelle de l'atelier; il prend appui sur le dépouillement de nombreux fonds d'archives d'entreprises et d'une abondante littérature technique, patronale et syndicale. Il s'attache d'abord aux pratiques d'organisation présentées en référence non exclusive à la taylorisation, à la recherche de la fluidité du processus de production et aux techniques de contrôle centralisé des exploitations; il réserve ensuite une large attention à la gestion du facteur humain, depuis la formation et la sélection professionnelles jusqu'à la politique sociale patronale, en passant par la question du commandement. Enfin, il tente de mesurer l'impact du changement organisationnel sur les conditions d'activité des travailleurs, de saisir leurs réactions et celles du mouvement ouvrier organisé. S'en dégage un bilan nuancé de la rationalisation dans l'industrie belge à la veille de la Seconde Guerre mondiale, prenant en compte le poids de la conjoncture, les contraintes structurelles, internes et externes aux entreprises, et le jeu — conflictuel ou coopératif — des acteurs. [less ▲]

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See detailLes dimensions territoriales du développement durable
Merenne-Schoumaker, Bernadette ULg

in G.E.O (2004), (55), 45-61

Cet article cherche à montrer les liens étroits entre développement durable et territoires. A cette fin, trois sujets sont abordés : l’explosion de la mobilité, l’étalement urbain et la désurbanisation et ... [more ▼]

Cet article cherche à montrer les liens étroits entre développement durable et territoires. A cette fin, trois sujets sont abordés : l’explosion de la mobilité, l’étalement urbain et la désurbanisation et les risques liés à l’action humaine. Dans chaque cas, un cheminement en quatre temps est proposé :définitions et savoirs de base, faits et causes, problèmes engendrés et pistes de solutions [less ▲]

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See detailCyclodextrins as a potential carrier in drug nebulization
Evrard, Brigitte ULg; Bertholet, P.; Guéders, Maud ULg et al

in Journal of Controlled Release (2004), 96(3), 403-410

The inhalation route is widely studied for many drug applications focusing on either local or systemic distributions. One matter of concern is the solubilization of hydrophobic drugs. We have studied the ... [more ▼]

The inhalation route is widely studied for many drug applications focusing on either local or systemic distributions. One matter of concern is the solubilization of hydrophobic drugs. We have studied the feasibility of using different cyclodextrins (CDs) to elaborate pharmaceutical formulations for the inhalation route and tested the short-term toxicity of such formulations administered by inhalation to C57BL/6 mice. We have shown that HP-beta-CD, gamma-CD, as well as RAMEB aqueous solutions can undergo aerosolization and that the resulting droplet-size ranges are compatible with pulmonary deposition. In vivo, we have demonstrated that short-term exposure to inhaled HP-beta-CD, gamma-CD and RAMEB solutions are non-toxic after assessing bronchoalveolar lavage (BAL), lung and kidney histology, bronchial responsiveness to methacholine and blood urea. The only change noted is a slight increase in lymphocyte count in the BAL after HP-beta-CD and gamma-CD inhalation. We conclude that CDs are useful in significantly enhancing the solubility of apolar drugs with a view to inhalation therapy although an increase in lymphocyte counts in the BAL after CDs inhalations needs further investigations. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailDevelopment of molecular tests for the detection of ILAR and latent viruses in fruit trees.
Roussel, S.; Kummert, J.; Dutrecq, O. et al

in Communications in Agricultural and Applied Biological Sciences (2004), 69(4), 427-432

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See detailIn situ development and application of cDNA-AFLP to isolate genes of Candida oleophila (strain O) potentially involved in antagonistic properties against Botrytis cinerea.
Massart, Sébastien ULg; Luna-Guarda, M.; Jijakli, Haissam ULg

in Communications in agricultural and applied biological sciences (2004), 69(4), 595-599

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See detailGeochemical and Pb isotopic investigations in peat bogs from Southern Chile: Identification of particles supplies and possible paleoclimate record
De Vleeschouwer, F.; Ibanez, M.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 478-478

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See detailHolocene record of atmospheric flux by geochemical and Pb isostopes signatures in a Belgian Hautes Fagnes peat bog: Preliminary results
Gerard; De Vleeschouwer, F.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 485-485

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See detailGeochemical and Pb isotopic investigations in peat bogs from Southern Chile: Identification of particles supplies and possible paleoclimate record
De Vleeschouwer, F.; Ibanez, M.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 478-478

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See detailHolocene record of atmospheric flux by geochemical and Pb isostopes signatures in a Belgian Hautes Fagnes peat bog: Preliminary results
Gerard; De Vleeschouwer, F.; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2004), 68(11), 485-485

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See detailOptimisation des treillis à membrure supérieure variable sur base de la théorie des indicateurs morphologiques
Moureaux, Christine ULg; Latteur, Pierre ULg

in Revue scientifique des instituts supérieurs industriels francophones de Belgique (2004), 18

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See detailInsulin-like growth factor binding proteins (IGFBPs) in camels : revelation by western ligand blotting and partial purification of insulin-like growth factor binding protein-3 (IGFBP3)
Hammadi, Mohamed; Colinet, Frédéric ULg; Khorchani, Touhami et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2004), 8(Special issue), 53

It's well known that Insulin-like growth factor binding proteins (IGFBPs) are important in somatotrope axis in mammals. They modulate bioactivity of Insulin-like growth factor-I/II. In this study, we ... [more ▼]

It's well known that Insulin-like growth factor binding proteins (IGFBPs) are important in somatotrope axis in mammals. They modulate bioactivity of Insulin-like growth factor-I/II. In this study, we identified IGFBPs in blood of camel by Western ligand blotting and we investigated a procedure to purify IGFBP-3 from this species. Three distinct bands are observed. By analogy to that known in mammals, they are identified as insulin-like growht factor binding-3 (IGFBP-3:40-46 kDa), insulin-like growth factor binding proteins-2 (IGFBP-2: 32 kDa) and insulin-like growth factor binding proteins-1 (IGFBP-1: 28 kDa). IGFBP-3 precipitates in 40-60% by ammonium sulfate saturation of serum. Acidification of 40-60% fraction at pH 3.0 is necessary to dissociate IGFBP-3 from tertiary complex (IGFBP-3, acid labile subunit and IGF-I/II). IGFBP-3 is partially purified by anionic ions exchange chromatography at pH 8.5. It forms a clear doublet band. [less ▲]

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See detailModulus of elasticity for service and accident conditions
Schneider, Ulrich; Schwesinger, P.; Debicki, Gérard et al

in Materials and Structures (2004), 37

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See detailL'image du mois. Un courant d'air.
ROUSSEAU, Anne-Françoise ULg; CANIVET, Jean-Luc ULg; CAMPOLINI, Christophe

in Revue Médicale de Liège (2004), 59(10), 550-551

Portal venous gas is a rare radiological symptom related to several possible causes. Its severity is only correlated with the severity of the primary disease. We report the case of a portal pneumatose ... [more ▼]

Portal venous gas is a rare radiological symptom related to several possible causes. Its severity is only correlated with the severity of the primary disease. We report the case of a portal pneumatose. The diagnosis was made by ultrasound and CT scan. [less ▲]

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See detailCompte rendu de H.-J. Kracht & J. Torsy (†), Reliquiarium Coloniense
George, Philippe ULg

in Revue d'Histoire Ecclésiastique (2004)

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See detailCompte rendu de La tradizione barese di S. Sabino di Canosa
George, Philippe ULg

in Revue d'Histoire Ecclésiastique (2004)

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See detailRegional differences in the consumption of Benzodiazepines: an analysis from Belgium
Habraken, H.; De Maeseneer, J.; De Prins, L. et al

in Archives of Public Health (2004), 63

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