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See detailForce musculaire isocinétique du couple quadriceps / ischio-jambiers des joueurs de rugby professionnels
Julia, Marc; Pereira, B.; Morand, D. et al

in Résumés des communications orales SFTS (2012, October)

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See detailLa force persuasive de l'Idéo-graphie
Leclercq, Bruno ULg

Conference (2010, April 17)

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See detailForce plate : Gold standard ?
Balligand, Marc ULg

in Proceedings of the 20th ECVS Congress (2011)

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See detail- La force probante de la preuve irrégulièrement recueillie : Antigone aurait-elle perdu son âme ?
Jacobs, Ann ULg

in Saint-Pau, Jean Christophe; Bergeaud, Aurélie (Eds.) La preuve pénale – Problèmes contemporains en droit comparé (2012)

Jurisprudence belge en matière de preuve illégale et irrégulière.

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See detailA force sensor based on three weakly coupled resonators with ultrahigh sensitivity
Zhao, Chun; Wood, Graham; Xie, J.B. et al

in Sensors and Actuators. A, Physical (2015), 232

A proof-of-concept force sensor based on three degree-of-freedom (DoF) weakly coupled resonatorswas fabricated using a silicon-on-insulator (SOI) process and electrically tested in 20 Torr vacuum.Compared ... [more ▼]

A proof-of-concept force sensor based on three degree-of-freedom (DoF) weakly coupled resonatorswas fabricated using a silicon-on-insulator (SOI) process and electrically tested in 20 Torr vacuum.Compared to the conventional single resonator force sensor with frequency shift as output, by measuringthe amplitude ratio of two of the three resonators, the measured force sensitivity of the 3DoF sensor was4.9 × 106/N, which was improved by two orders magnitude. A bias stiffness perturbation was applied toavoid mode aliasing effect and improve the linearity of the sensor. The noise floor of the amplitude ratiooutput of the sensor was theoretically analyzed for the first time, using the transfer function model ofthe 3DoF weakly coupled resonator system. It was shown based on measurement results that the outputnoise was mainly due to the thermal–electrical noise of the interface electronics. The output noise spectraldensity was measured, and agreed well with theoretical estimations. The noise floor of the force sensoroutput was estimated to be approximately 1.39nN for an assumed 10 Hz bandwidth of the output signal,resulting in a dynamic range of 74.8 dB. [less ▲]

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See detailForced Convective Drying of Wastewater Sludge with Presentation of Exergy Analysis of the Dryer
Bennamoun, Lyes; Fraikin, Laurent ULg; Li, Jie et al

in Chemical Engineering Communications (2016), 203

The main objective is studying the fundamental aspect, by the mean of the drying kinetics, the application of forced convective drying of wastewater sludge with determination of the optimum drying ... [more ▼]

The main objective is studying the fundamental aspect, by the mean of the drying kinetics, the application of forced convective drying of wastewater sludge with determination of the optimum drying conditions. The drying system is composed of two units; small samples of 2.5 g are dried in the first unit and bed of sludge weighting 250 g is dried the second unit. The experiments are performed under air temperatures varying between 80°C and 200°C. The range of the air velocity and its humidity is 1- 2 m/s and 0.005- 0.05 kgwater/kgdry air, respectively. The experiments are performed for two different sludges; activated sludge (AS) and thermalized and digested sludge (TDS). Usually, three main drying phases are observed during drying of bed of sludge. These phases are reduced to only two for small samples. Determination of the influent parameters shows that temperature of the drying air and sludge origin can profoundly influence the drying kinetic of the sludge. The exergy analysis of the two units of the drying system allows selecting 140 °C, 2 m/s, 0.05 kgwater/kgdry air as optimum drying condition with an exergy efficiency reaching 90\%. [less ▲]

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See detailForced Saving, Redistribution, and Nonlinear Social Security Schemes
Cremer, Helmuth; De Donder, Philippe; Maldonado, Dario et al

in Southern Economic Journal (2009), (76), 86-98

This paper studies the design of nonlinear social security schemes when individuals differ in productivity and in their degree of myopia. Myopic individuals may not save ‘‘enough’’ for their retirement ... [more ▼]

This paper studies the design of nonlinear social security schemes when individuals differ in productivity and in their degree of myopia. Myopic individuals may not save ‘‘enough’’ for their retirement. The welfare function is paternalistic: The rate of time preference of the farsighted is used for both types. We show that the solution does not necessarily imply forced savings for the myopics: Paternalistic considerations are mitigated by incentive effects. Numerical results suggest that as the proportion of myopic individuals increases, there is less redistribution and more forced saving, and the desirability of social security increases. [less ▲]

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See detailForcer l'avenir, alliances innovantes pour le développement durable - Écologie industrielle
Sartor, Kevin ULg; Huysmans, Hélène ULg; Corman, Marjorie

Conference given outside the academic context (2012)

En préparation au sommet Rio + 20, les étudiants du master en sciences de gestion à finalité en Management des entreprises sociales de l'Université de Liège organisent un colloque le 27 avril sur le thème ... [more ▼]

En préparation au sommet Rio + 20, les étudiants du master en sciences de gestion à finalité en Management des entreprises sociales de l'Université de Liège organisent un colloque le 27 avril sur le thème des alliances innovantes pour le développement durable. Quatre pistes seront évoquées, soit: - Alliance producteurs- consommateurs - Ecologie industrielle - Emplois verts et inclusion sociale - Organisations et dispositifs supports Les ministres de l'Economie, Jean-Claude Marcourt, et du Développement Durable, Jean-Marc Nollet seront présents. [less ▲]

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See detailForcer, cadrer, confisquer le débat. Réflexions sur les médias européens et le discours eurofédéraliste
Geuens, Geoffrey ULg

Conference given outside the academic context (2014)

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See detailLes forces centrifuges de la mobilité facilitée, le système des quotidiennetés urbaines et la recomposition des espaces urbains
Halleux, Jean-Marie ULg

in Montulet, B.; Kaufmann, V. (Eds.) Mobilités, fluidités... libertés ? (2004)

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See detailLes forces de la négation dans l’image
Dondero, Maria Giulia ULg

in Acquarelli, Luca (Ed.) Au prisme du figural. Le sens des images entre forme et force (2015)

Ce texte vise à décrire un type particulier de forces inhérentes à la configuration de l’image. Il s’agit de forces qui mettent en crise la figuration et le caractère affirmatif de l’image, en les ... [more ▼]

Ce texte vise à décrire un type particulier de forces inhérentes à la configuration de l’image. Il s’agit de forces qui mettent en crise la figuration et le caractère affirmatif de l’image, en les détournant et en les rendant « hésitants ». Nous souhaitons démontrer que l’image n’est pas contrainte d’affirmer ce qu’elle met en scène : elle a également la capacité de le nier. La négation par l’image représente à nos yeux un défi majeur pour les sémioticiens du visuel et les théoriciens de l’art, notamment dans le cadre de recherches sur le langage de l’image, le métalangage visuel et, plus généralement, sur les capacités de l’image à développer un discours autonome par rapport au discours verbal [less ▲]

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See detailForces et faiblesse des essais cliniques . Evolution en fonction de l'essor de la medecine personnalisee.
Ernest, Ph; Jandrain, B.; Scheen, Andre ULg

in Revue medicale de Liege (2015), 70(5-6), 232-6

Randomised Controlled Trials (RCTs) represent the cornerstone of Evidence-Based Medicine (EBM). Based upon the rules of Good Clinical Practice (GCP), they offer many strengths but also present some ... [more ▼]

Randomised Controlled Trials (RCTs) represent the cornerstone of Evidence-Based Medicine (EBM). Based upon the rules of Good Clinical Practice (GCP), they offer many strengths but also present some weaknesses. The rigorous methodology used allows avoid bias related to confounding factors (through a control group), selection bias (through randomisation) and interpretation bias (through double blinding). However, patients recruited in clinical trials and study experimental conditions markedly differ from the situation in real life. Furthermore, clinical trials recruit a mix of good and poor responders, so that the average therapeutic response is most often mitigated. Clinical trials must evolve according to the new concepts of personalized medicine to become even more performing. In a near future, they must progress from a statistical analysis on large cohorts of patients to a more individualized analysis guided by patient phenotype and genotype characteristics. [less ▲]

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See detailForces et faiblesses de la puissance chinoise
Wintgens, Sophie ULg

Conference (2009, March 13)

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See detailForces et faiblesses du système éducatif en Fédération Wallonie-Bruxelles
Baye, Ariane ULg

Conference given outside the academic context (2013)

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See detailForcing of a global model of plant productivity with climatic and remote sensing data
Warnant, Pierre ULg; François, Louis ULg; Strivay, David ULg et al

in Veroustraete, F.; Ceulemans, R. (Eds.) Vegetation, modelling and climatic change effects (1994)

Detailed reference viewed: 8 (2 ULg)
See detailForecast assessment in the mediterranean sea : A structure oriented approach
Ben Bouallegue, Z.; Alvera Azcarate, Aïda ULg; Vandenbulcke, Luc ULg et al

Conference (2004, April)

The MFSTEP1 project is an international scientific collaboration program which aims to create an operational forecasting system for the Mediterranean sea. The simulations provided at the basin scale are ... [more ▼]

The MFSTEP1 project is an international scientific collaboration program which aims to create an operational forecasting system for the Mediterranean sea. The simulations provided at the basin scale are 10 days forecasting fields in a 3-D ocean. The hydrodynamic model primitive equations are combined with the data assimilation scheme SOFA2. The data collection is done in a near real time process and the set of XBT and SLA observations are used in one week assimilation cycle. The forecast assessment is traditionally realised using classical statistic tools like RMSE or the bias and the assimilation benefit is estimated by skill scores using as reference the free model, persistence or also climatology. The process is essentially based on the comparison of two fields at a fixed time, one corresponding to the simulations and the other one to the observations. The interest of such statistical methods comes in the quick and sensitive appreciation they provide about the quality, accuracy and consistency of the simulation. However this kind of assessment procedure brings in it self a conceptual contradiction: performances of a dynamical process are measured using a snap shot view of the ocean state. A system evolution assessment procedure is carried out within the framework of the MFSTEP hindcast. The hindcast system is intrinsically analysed (without independent informations) comparing the background forecast evolution with the abrupt variation which occurs at the observations assimilation time steps. The system evolution between two consecutive days is analysed using a decomposition method. The temperature and salinity fields evolution in a sub-region of theWestern Mediterranean basin is seen in a structural point of view and decomposed in three elements : a global spatial(2D) displacement which conserves the internal features, a global intensity variation which expresses the system energy changes, and an internal pattern changes ensemble. The index of evolution used is a mean squared difference between the two consecutive simulations. The displacement contribution is estimated after the determination of the shift (field translation) which minimises the local mean squared difference between the translated field and the next simulation. The intensity variation contribution is calculated as the difference of the squared mean fields. The remaining difference after manipulations is considered as the internal pattern changes contribution to the system evolution. [less ▲]

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See detailForecast verification in the Ligurian Sea. Multiresolution analysis and study of the thermocline
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Rixen, M. et al

Conference (2004, April)

The results of the GHER 3D model are analysed, in order to establish the benefits of a Sea Surface Temperature (SST) assimilation experiment. The influence of the assimilation into the results of the ... [more ▼]

The results of the GHER 3D model are analysed, in order to establish the benefits of a Sea Surface Temperature (SST) assimilation experiment. The influence of the assimilation into the results of the model is examined first in the studied domain, the Ligurian Sea. Then, the benefit of the assimilation outside this domain (in the nearby zones at the surface, and in the Ligurian Sea at depth) is also studied. Finally, the effect of the SST assimilation on the other variables is examined. The procedure for the skill assessment of the model is as follows. First, the classical verification tools are applied: Root Mean Square Error (RMSE), Anomaly Correlation Coefficient (ACC), and Mean Square Error Skill Score (MSESS). Climatology and a free run of the model are used as reference systems. After this, a multiresolution analysis is carried out, to decompose the model results into different spatial scales. At each scale, the error measures mentioned above are applied. This allows to establish which scales are mainly contributing to the error. For this multiresolution analysis, a Discrete Wavelet Transform is used. The study of the assimilation benefits at depth is made by comparison with CTDs. The aim is to study the position and strength of the thermocline, as this zone presents high variability and it has an important impact into the system. A good representation of the thermocline is thus interesting. [less ▲]

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See detailForecast verification of a 3D model of the Mediterranean Sea. Analysis of model results and observations using wavelets and Empirical Orthogonal Functions.
Alvera Azcarate, Aïda ULg

Doctoral thesis (2004)

The quality assessment of the three-dimensional GHER (GeoHydrodynamics and Environmental Research) model of the Mediterranean Sea is presented in this work. The verification of the model results is done ... [more ▼]

The quality assessment of the three-dimensional GHER (GeoHydrodynamics and Environmental Research) model of the Mediterranean Sea is presented in this work. The verification of the model results is done in a spatio-temporal approach. Traditional error measures (i.e. correlation, mean error, etc) are very useful to assess the quality of a model, but they do not take into account the high complexity of three-dimensional models. The verification process is thus done in three main parts: first, the model is compared to observations and climatology in a qualitative approach, in order to make a preliminar study about the model behaviour. Then, the error assessment is done, using traditional statistic measures. In order to take into account the complexity of the model and observations, the last step in the verification process consists in a spatio-temporal analysis using wavelets and empirical orthogonal functions. This last analysis will allow us to have an insight about the model quality in a more detailed way. This verification process has been applied to the GHER model. This model is implemented in a two-way nesting approach in the Mediterranean Sea, Liguro-Provençal basin and Ligurian Sea, where the highest resolution is reached. Assimilation of sea surface temperature and sea level anomaly is made during a nine-week experiment. Another test is carried out, to assess the quality of sea surface temperature from the SOFT predictor of the Ligurian Sea. The predicted sea surface temperature is assimilated in the model and the quality of the forecast is compared to the first assimilation experiment. The assimilation of the SOFT statistical predictors can be very useful to force models in a real forecast experiment, where no observations are available. [less ▲]

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