References of "2006"
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See detailImpact of Prosthesis-Patient Mismatch on Survival following Mitral Valve Replacement.
Magne, Julien ULg; Mathieu, P; Dumesnil, JG et al

Conference (2006)

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See detailNumerical modelling of coupled poromechanics processes
Charlier, Robert ULg; Laloui, Liesse; Collin, Frédéric ULg

in Revue Européenne de Génie Civil (2006), 10(6-7), 669-702

This paper is the basis for a course dedicated to geomechanics for energy production. A number of different coupling are discussed, with respectively the fluid flow (saturated and unsaturated) and the ... [more ▼]

This paper is the basis for a course dedicated to geomechanics for energy production. A number of different coupling are discussed, with respectively the fluid flow (saturated and unsaturated) and the thermal transfers in deformable porous media. Eventually some aspects on the numerical modelling with the finite element method are discussed. [less ▲]

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See detailFrom an architectural sketch to feasible structural systems
Mora, Rodrigo; Juchmes, Roland ULg; Rivard, Hugues et al

in Gero, John, S.; Goel, Ashok K. (Eds.) Proceedings of the Second International Conference on Design Computing and Cognition (2006)

The goal of this research is to propose an integrated approach to incorporate structural engineering concerns into architectural schematic designs for timely and well-informed decision making. This is ... [more ▼]

The goal of this research is to propose an integrated approach to incorporate structural engineering concerns into architectural schematic designs for timely and well-informed decision making. This is done through a platform that is based on two software prototypes, EsQUIsE for capturing and interpreting architectural sketches, and StAr for assisting engineers during conceptual structural design. An integrated information model is provided for communication. Given the dissimilar “quality” of the information managed by both prototypes, sketch interpretation mechanisms are also required to “tune-up” communications for bringing the sketch to a precise structural engineering definition. As a result, the engineer can propose feasible structural systems earlier than usual. [less ▲]

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See detailNonlinear MDOF system characterization and identi cation using the Hilbert-Huang transform
Kerschen, Gaëtan ULg; Vakakis, Alexander F.; Lee, Young.S et al

in International Conference on Noise and Vibration Engineering, Leuven, 2006 (2006)

The Hilbert transform is one of the most successful approaches to tracking the varying nature of vibration of a large class of nonlinear systems thanks to the extraction of backbone curves from ... [more ▼]

The Hilbert transform is one of the most successful approaches to tracking the varying nature of vibration of a large class of nonlinear systems thanks to the extraction of backbone curves from experimental data. Because signals with multiple frequency components do not admit a well-behaved Hilbert transform, it is inherently limited to the analysis of single-degree-of-freedom systems. In this study, the joint application of the complexification-averaging method and the empirical mode decomposition enables us to develop a new technique, the slow-flow model identification method. Through numerical and experimental applications, we demonstrate that the proposed method is adequate for characterizing and identifying multi-degree-offreedom nonlinear systems. [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 detailUn terrain fragmenté : le kimbanguisme et ses ramifications
Melice, Anne ULg

in Civilisations (2006), LIV(1-2), 67-76

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See detailInter-modal freight terminal location in Europe: a strategic model
Limbourg, Sabine ULg

Conference (2006)

The political pressure in favour of multi- and inter-modal transport has oriented the focus on sustainable transport solutions. Inter-modal transport is one of the (partial) possible solutions, but its ... [more ▼]

The political pressure in favour of multi- and inter-modal transport has oriented the focus on sustainable transport solutions. Inter-modal transport is one of the (partial) possible solutions, but its efficiency strongly depends on the places where the container terminals are located. The number of possible locations on large scale networks such as the European one becomes rapidly too large to be taken as input by exact location methods. That’s why the first goal of this paper is to outline a method that helps to identify the best potential locations out of the thousands of potential nodes. The basic idea is to use the flows of commodities and their geographic spreading as input to determine a set of good potential locations for transfer inter-modal terminals. This set can, in a second step, be used as input for already well known optimal location models in order to identify the optimal locations for container terminals in Europe. The complete methodology is illustrated by means on a case study that concerns multi-modal transport over the whole trans-European networks. [less ▲]

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See detailStochastic analysis of the recharge uncertainty of a regional aquifer in extreme arid conditions
Rojas, Rodrigo; Dassargues, Alain ULg

in Stauffer, Fr.; Dassargues, Alain (Eds.) Quantitative Geology from Multiple Sources: S10 Use of multiple sources in conditioning/calibrating groundwater flow and transport models (2006)

The Pampa del Tamarugal Aquifer (PTA) is an important source of groundwater in northern Chile. Since the study area is situated in the Atacama Desert, the estimation of groundwater recharge based on ... [more ▼]

The Pampa del Tamarugal Aquifer (PTA) is an important source of groundwater in northern Chile. Since the study area is situated in the Atacama Desert, the estimation of groundwater recharge based on conventional hydrological methods is subject to large uncertainties. To account for variations in the groundwater balance, caused by uncertainties in the average recharge rates, randomly generated recharge values with different levels of uncertainty are simulated using a groundwater flow model. Results show that evaporation and groundwater outflows are insensitive to the recharge uncertainty, while the storage terms can vary considerably. Considering current groundwater abstraction and random recharge rates, it is unlikely that the cumulative discharged volume from the aquifer, after a 45 years simulation period, will be larger than 12% of the estimated groundwater reserve. Simulated groundwater heads fluctuations due to uncertainties in the average recharge rates are more noticeable in certain areas. These fluctuations could explain anomalies in the observed groundwater heads in these areas. [less ▲]

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See detailRole of lipopeptides in the biological control activity of Bacillus subtilis
Ongena, Marc ULg; Jourdan, E.; Adam, A. et al

Conference (2006)

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See detailChronique de la 60ème Session de la Société Internationale Fernand de Visscher à Komotini (26-30 Septembre 2006)
Gerkens, Jean-François ULg

in Revue Internationale des Droits de l'Antiquité (2006), LIII

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See detailHazard mitigation for landslide dams in Mailuu-Suu valley (Kyrgyzstan)
Torgoev, Isakbek; Aleshin, YG; Meleshko, AV et al

in Italian J Eng Geol Environ Special Issue 1 (2006)

The area in the midstream of the Mailuu-Suu River is the most landslide-prone and vulnerable of the entire Kyrgyzstan territory. More than 200 landslide sources distinct by genesis, age and development ... [more ▼]

The area in the midstream of the Mailuu-Suu River is the most landslide-prone and vulnerable of the entire Kyrgyzstan territory. More than 200 landslide sources distinct by genesis, age and development stages have been fixed at present in the outskirts of the Mailuu-Suu town within an area of 80 km2 only. The main reasons of mountain slopes instability in this area are the geologic conditions and geodynamic peculiarities of the region. Seismic, climatic and man-caused factors play a role of rather a trigger mechanism ... [less ▲]

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See detailCaractérisation isotopique des eaux du granite et de l’auréole métamorphique d’Oulmès (Maroc central)
Olive, Philippe; Dassargues, Alain ULg; Griere, Olivier et al

in Integrated Water Resources management and Challenges of the Sustainable Development (2006)

Dans le bassin d’Oulmès sont exploitées et commercialisées par la société des Eaux Minérales d’Oulmès qui constitue le plus gros embouteilleur d’eaux minérales du Maroc :Sidi Ali Lala Haya. Le pluton ... [more ▼]

Dans le bassin d’Oulmès sont exploitées et commercialisées par la société des Eaux Minérales d’Oulmès qui constitue le plus gros embouteilleur d’eaux minérales du Maroc :Sidi Ali Lala Haya. Le pluton granitique, d’âge hercynien, d’Oulmès est un granite à biotite et muscovite. Il présente une fracturation très marquée et un système filonien très développé. L’altération, très poussée, se manifeste par une arénitisation généralisée qui s’étend en profondeur. Le kaolin caractérise cette altération d’origine hydrothermale. L’eau de Lalla Haya émerge dans les granites à la faveur de fissures à une température de 42°C, il s’agit d’une eau carbo-gazeuse, bicarbonatée sodique. L’auréole métamorphique générée par ce granite englobe la formation des schistes en dalles, roches métapélitiques cambro-ordoviciennes homogènes. L’eau de Sidi Ali est faiblement minéralisée, elle aussi bicarbonatée sodique avec une pression partielle de CO2 non négligeable L’utilisation de l’outil isotopique a permis de préciser un certain nombre de points concernant la recharge et l’écoulement des eaux souterraines dans le bassin d’Oulmès. Les teneurs en 18O d’une vingtaine de sources situées autour du site et étagées entre 300 et 2000 m s’alignent suivant un gradient de -0,21 ‰ / 100 m. La zone de recharge commune des eaux du granite et des schistes en dalle se situe vers 1100/1300 m. De plus le rapport 18O/D pour ces deux types d’eau indique un appauvrissement en 18O de près de 1 ‰ dû à un échange avec le CO2 magmatique. Le temps de séjour moyen des eaux dans l’auréole métamorphique est de quelques dizaines d années (présence de 3H thermonucléaire) et, au moins, de plusieurs centaines d’années dans les eaux du massif granitique (absence de 3H thermonucléaire). De la remontée de CO2 magmatique, à 14C mort, il résulte que la teneur en 14C du carbone minéral dissous est quasiment nulle et qu’il vieillit, plus ou moins, les activités en 14C du carbone minéral dissous des eaux de l’auréole. En conclusion l’eau qui s’infiltre dans les fractures du massif granitique où elle se réchauffe suivant un gradient géothermique d’environ 40°C/km. Comme le géothermomètre Na/K indique une température de 165 °C, elle atteint une profondeur de l’ordre de 2 à 3 km. Elle s’est enrichie en CO2 magmatique et remonte par effet de gaz lift et donne naissance à Lalla Haya. Cette remontée ne se limite pas au seul massif granitique mais s’étend à l’auréole métamorphique en profitant des fractures du massif et des filons de quartz en provenance du batholite où elle se mélange, en proportions variables, aux eaux récentes qui se sont infiltrées directement sur les schistes en dalles. Ce sont ces fluides hydrothermaux qui ont donné naissance aux dépôts hydrothermaux autrefois exploités en mines (Sn). [less ▲]

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See detailIdentification of groundwater quality trends in a chalky aquifer threatened by intensive agriculture
Batlle-Aguilar, Jordi; Orban, Philippe ULg; Dassargues, Alain ULg et al

in Stauffer, Fr.; Dassargues, Alain (Eds.) Quantitative Geology from Multiple Sources: S10 Use of multiple sources in conditioning/calibrating groundwater flow and transport models (2006)

Diffuse groundwater contamination related to agricultural practices is a worldwide environmental problem, particularly the continuous increase in nitrate concentrations. As a response to this threat, the ... [more ▼]

Diffuse groundwater contamination related to agricultural practices is a worldwide environmental problem, particularly the continuous increase in nitrate concentrations. As a response to this threat, the European Union has adopted directives requiring that Member States take measures to reduce agricultural nitrate sources and stating that a “good” status of groundwater is required for all EU members. In order to achieve the environmental objectives for groundwater, the identification and reversal of any significant upward trend in the pollutant concentrations are required. Conclusions are drawn about the evolution of groundwater contamination by nitrates in the following decades with respect to the EU Water directive prescriptions. Measures have to be urgently taken in order to avoid major degradation of groundwater in 10 to 70 years. However, a good groundwater quality status cannot be expected for the 2015 EU Water Framework Directive (WFD). [less ▲]

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See detailPET and PET/CT Imaging in Lung Cancer
Rigo, Pierre ULg; Hustinx, Roland ULg; Bury, Thierry ULg

in Valk, PE; Delbeke, D; Bailey, DL (Eds.) et al Positron Emission Tomography - Clnical practice (2006)

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See detailCost-effective media for the rapid and high resolution of small DNA fragments using polyacrylamide-based electrophoresis
Negro, S. S.; Cloots, Rudi ULg; Gemmell, N. J.

in Molecular Ecology Notes (2006), 6(3), 609-612

Current Tris-based solutions for DNA electrophoresis produce a positive feedback loop between current and temperature at high voltage, resulting in long running times for the separation of even small DNA ... [more ▼]

Current Tris-based solutions for DNA electrophoresis produce a positive feedback loop between current and temperature at high voltage, resulting in long running times for the separation of even small DNA fragments. We optimized the separation of small DNA fragments (90-300 bp) in polyacrylamide-based electrophoresis at high voltages (200volts/cm) by substituting Tris with low concentration alkali salts (e.g. 1 mm LiCl and CsCl). These media reduced the heat produced during electrophoresis, enhanced the DNA fragment resolution, and allowed gels to be run at higher voltages, reducing gel running times by 25%. In addition, the elimination of Tris and EDTA from the buffer reduced material costs approximately 10-fold. © 2006 The Authors. [less ▲]

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