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
Peer Reviewed
See detailErrors in 2-D modelling using a 0th order turbulence closure for compound channel flows
Linde, F.; Paquier, A.; Proust, S. et al

in International Conference on Fluvial Hydraulics, River Flow 2012 (2012)

When dealing with flood issues, compound channels flows are often encountered in the field. This paper investigates the errors that can be expected when using 2-D modelling for compound channel flows ... [more ▼]

When dealing with flood issues, compound channels flows are often encountered in the field. This paper investigates the errors that can be expected when using 2-D modelling for compound channel flows, comparing the simulations with experiments. Three flow configurations are analyzed: uniform, gradually varied and rapidly varied flows. The last configuration is obtained by setting a transverse embankment on the flood plain. Errors are estimated on the sub-section mean velocity, discharge andwater depth, on the mixing layer width and on the depth-averaged stream-wise velocity and lateral shear stress. Depending on the flow configuration and on the studied parameter, relative errors significantly vary from nearly zero to 50%. The influence of the 0th order turbulence closure on the mean flow and the dimensions of the recirculation zone behind the embankment is also investigated, using either constant eddy viscosity or Elder's model. © 2012 Taylor & Francis Group, London. [less ▲]

Detailed reference viewed: 28 (1 ULg)
Full Text
Peer Reviewed
See detailErrors in architectural design process : towards a cognitive model.
Safin, Stéphane ULg; Leclercq, Pierre ULg; Blavier, Adelaïde ULg

in Marjanovic, Dorian; Storga, Mario; Pavkovic, Neven (Eds.) et al Proceedings of the Design 2008 : 10th International Design Conference (2008)

In architectural design process, the human error has a particular status. The later it is detected, the more expensive it is. Moreover, some errors can not be detected given the current state of the ... [more ▼]

In architectural design process, the human error has a particular status. The later it is detected, the more expensive it is. Moreover, some errors can not be detected given the current state of the design process and object definition. In this paper, we propose a model based on cognitive theories about human errors, applied to architectural preliminary design. In this model we classify the consequences of a design decision (direct, indirect, detected and undetected), we describe the steps of decision in architecture in relation to the process of errors detection and we introduce the concept of evolutive context. [less ▲]

Detailed reference viewed: 211 (23 ULg)
Full Text
Peer Reviewed
See detailErrors induced by indexing glomerular filtration rate for body surface area: reductio ad absurdum.
Delanaye, Pierre ULg; Mariat, Christophe; Cavalier, Etienne ULg et al

in Nephrology Dialysis Transplantation (2009), 24(12), 3593-6

Detailed reference viewed: 19 (10 ULg)
Full Text
See detailERRUISSOL
Degre, Aurore ULg

Learning material (2009)

Detailed reference viewed: 58 (21 ULg)
See detailERRUISSOL and GISER projects : runoff and erosion risks management in Wallonia
Degre, Aurore ULg

Conference (2011, May 19)

Detailed reference viewed: 53 (18 ULg)
See detailERT monitoring of water infiltration process through a landfill cover layer
Dumont, Gaël ULg; Pilawski, Tamara ULg; Robert, Tanguy et al

in Berichte der Geologischen Bundesanstalt, 112 (2015, November)

Detailed reference viewed: 17 (2 ULg)
Peer Reviewed
See detailERT monitoring sheds light on the hydrogeological behavior in a landfill
Dumont, Gaël ULg; Nguyen, Frédéric ULg

in EarthDoc - Near Surface Geoscience 2013 – 21th European Meeting of Environmental and Engineering Geophysics (2015, September)

Detailed reference viewed: 24 (5 ULg)
Full Text
Peer Reviewed
See detailERT to monitor the bioremediation of hydrocarbons with Rhodococcus erythropolis T902.1 at a pilot scale
Masy, Thibaut ULg; Caterina, David; Tromme, Olivier et al

Conference (2015, June 30)

Petroleum hydrocarbons (HC) represent the most widespread contaminants in the world and in-situ bioremediation remains a competitive treatment in terms of cost and environmental concerns. However, the ... [more ▼]

Petroleum hydrocarbons (HC) represent the most widespread contaminants in the world and in-situ bioremediation remains a competitive treatment in terms of cost and environmental concerns. However, the efficiency of such a technique (by biostimulation or bioaugmentation) strongly depends on numerous environmental characteristics (heterogeneities of the subsurface structure, soil moisture, oxygen and pollutants bioavailability, microbial niches…) and is still difficult to predict a priori. In order to lower these uncertainties, Electrical Resistivity Tomography (ERT) appears as a valuable non-invasive tool to detect soil heterogeneities and to monitor biodegradation. The main objective of this study was thus to isolate with ERT an electrical signature corresponding to an enhanced biodegrading activity, in an aged HC-contaminated clay loam soil. To achieve it, a pilot tank with metric dimensions (3.6 × 0.9 × 0.6 m) and a recirculating system (which is quite unique for this type of purpose) was built to mimic field conditions and to control the evolution of the bio-physico-chemical parameters (microbial concentration in soil and groundwater, temperature, pH, pO2, redox potential, bulk and fluid conductivities, water flow, hydrocarbon content) through time and space. Five panels of electrodes were placed at different locations in the tank to detect lithological heterogeneities and to monitor the bulk resistivity variations with time-lapse ERT. Compared to a first insufficient biostimulation phase with H2O2 and KNO3, bioaugmentation with Rhodococcus erythropolis T902.1 led to a HC depletion of almost 80% (6900 to 1600 ppm) in 3 months in the center of the contaminated clay, where pollutants were less bioavailable. Furthermore, lithological heterogeneities (clay, sand, gravels) and microbial activities (growth, degradation and biosurfactant production) were successfully discriminated by ERT images obtained during both remediation phases. In the future, this cost-effective technique should be transferred to the field in order to either (i) detect and forecast biodegradation processes before choosing an appropriate remediation technique, or (ii) monitor the efficiency of this biodegradation during an in-situ bioremediation. [less ▲]

Detailed reference viewed: 68 (13 ULg)
See detailERT/Table ronde des industriels européens
Geuens, Geoffrey ULg

in Durand, Pascal (Ed.) Les Nouveaux Mots du Pouvoir. Abécédaire critique (2007)

Detailed reference viewed: 75 (7 ULg)
Full Text
See detailErweiterung der Einzeltropfenmodelle zur Simulation von Extraktionskolonnen mittels „ReDrop“.
Cvetkovic, E; Pfennig, Andreas ULg

in Book of Abstracts zum 9 (2013)

Detailed reference viewed: 17 (1 ULg)
Peer Reviewed
See detail“… eine Erweiterung des Wortes in Ausdruck und Wirkung auf emotionaler, sinnlicher und sogar intellektueller Ebene“ Der Komponist Hans Schanderl im Interview mit Vera Viehöver
Viehöver, Vera ULg

in Viehöver, Vera; Nörtemann, Regina (Eds.) Kolmar übersetzen. Studien zum Problem der Lyrikübertragung (2013)

Detailed reference viewed: 12 (1 ULg)
See detailErysipelothrix rhusiopathiae infection in stranded harbour porpoise (Phocoena phocoena) and harbour seal (Phoca vitulina)
Boseret, Géraldine ULg; Jauniaux, Thierry ULg; Mainil, Jacques ULg

in anton, erken (Ed.) Proceedings of the 4th scientific meeting of the European Association of Zoo and Wildlife Veterinarians and 5th meeting of the European Wildlife Disease Assocation : Heidelberg, Germany 2002 / editor Anton ERKEN. (2002, May 08)

An adult female harbour porpoise (Phocoena phocoena ) and a juvenile male harbour seal have been found dead on a Belgian beach in autumn 2001. The two bodies were in good condition (CC = 2). Pure and ... [more ▼]

An adult female harbour porpoise (Phocoena phocoena ) and a juvenile male harbour seal have been found dead on a Belgian beach in autumn 2001. The two bodies were in good condition (CC = 2). Pure and abundant growth of a small rod-shaped, Gram-labile bacterium was obtained aerobically and anaerobically on Columbia bloodagar from the heart blood, the mouth, the pharynx, the lungs, the intestine and the anus of the porpoise, and from the intestine, the pharynx, the mouth, the nose and the anus of the seal. The colonies were surrounded by a narrow zone of a-hemolysis. The catalase- and peroxydase-tests gave negative results. Rapid ID 32 Strepto (Biomérieux, France) sugar tests applied on porpoise’s heart blood, lungs and intestine, and on seal’s intestine and pharynx identified this isolate to Erysipelothrix rhusiopathiae. Erysipelothrix rhusiopathiae is not reported as a common cause of infection and death in wild cetaceans and wild pinnipeds in opposite to respectively captive dolphins and sea lions. Nevertheless, E. rhusiopathiae can be considered as the cause of death of the stranded harbour porpoise as it was present in heart blood and internal organs, and the seal was carrying the bacterium with lesions of enteritis which could be associated with E. rhusiopathiae infectio [less ▲]

Detailed reference viewed: 49 (6 ULg)
Peer Reviewed
See detailL'erytheme necrolytique migrateur.
Dandrifosse, J. F.; Dandrifosse, A. C.; Pierard, Gérald ULg et al

in Revue Médicale de Liège (1998), 53(12), 778-83

Necrolytic migratory erythema (NME) is generally associated with glucagonoma. It waxes and wanes by successive relapses and remissions. The clinical and microscopical diagnosis is complex. In addition to ... [more ▼]

Necrolytic migratory erythema (NME) is generally associated with glucagonoma. It waxes and wanes by successive relapses and remissions. The clinical and microscopical diagnosis is complex. In addition to glucagonoma treatments, the administration of corticoids, aminoacids, zinc or essential fatty acids can be helpful. There exist several etiological hypotheses for NME. These are based on modifications of pancreatic enzyme activities and on variations of aminoacids, fatty acids, zinc or glucagon concentrations. [less ▲]

Detailed reference viewed: 45 (0 ULg)
Full Text
Peer Reviewed
See detailThe erythrocyte sodium - potassium cotransport in hypertensive patients: advantages and limitations
Krzesinski, Jean-Marie ULg; Rorive, Georges ULg

in Clinical and Experimental Hypertension. Part A, Theory and Practice (1985), A7(4), 553-572

The Na-K cotransport activity was measured in erythrocytes of 123 normotensive and 92 hypertensive patients, using the methodology described by Dagher and Garay. Large overlap of the values obtained in ... [more ▼]

The Na-K cotransport activity was measured in erythrocytes of 123 normotensive and 92 hypertensive patients, using the methodology described by Dagher and Garay. Large overlap of the values obtained in the two populations is observed, in such a way this laboratory test cannot be applied for the discrimination between primary and secondary hypertension. Moreover, the abnormalities described for the Na-K cotransport do not appear specific for primary hypertension. In this study, the influence of hypertensive heredity, but also obesity on this cotransport system could not be demonstrated. However, this transport activity is significantly decreased in patients with chronic renal failure, during treatment with oestro-progestatives or during the oestrogenic phase of the menstrual cycle. These data strongly suggest that the cotransport activity could be modified not only by the hypertensive familial predisposition but also by environmental and hormonal influences. [less ▲]

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailErythrocyte Sodium-Potassium activities, plasma natriuretic activity, and peripheral vascular resistances during hemodialysis or hemofiltration
Krzesinski, Jean-Marie ULg; Godon, J. P.; Rorive, Georges ULg

in Journal of Clinical Hypertension (1985), 3

The effect of hemodialysis (acetate buffer) or hemofiltration on blood pressure, heart rate, peripheral vascular resistances, red blood cells ionic fluxes, and plasma natriuretic activity has been studied ... [more ▼]

The effect of hemodialysis (acetate buffer) or hemofiltration on blood pressure, heart rate, peripheral vascular resistances, red blood cells ionic fluxes, and plasma natriuretic activity has been studied in six male patients treated for end-stage renal disease. The hemodynamic response to these two modes of treatment markedly differs. Whereas, peripheral resistances increase and heart rate is not affected during hemofiltration , a decrease in blood pressure, tachycardia, and vasodilation is observed during hemodialysis. However , in both therapeutic approaches, red blood cell ouabain-sensitive sodium-potassium pump activity increases in a similar way, and the plasmatic natriuretic activity decreases, whereas the vascular response to norepinephrine is reduced. All of these changes were strongly correlated to the amount of fluid removed. The natriuretic activity may thus play a role in the regulation of blood pressure and hemodynamic adjustments to fluid removal in chronic renal failure between two dialyses, but its action is not predominent during the dialysis session itself. [less ▲]

Detailed reference viewed: 4 (1 ULg)