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See detailEvaluacion de la estabilidad de emulsiones alimentarias utilizado elmétodo optico Turbiscan.
Flores-Aguilar, E.; Lognay, Georges ULg; Blecker, Christophe ULg et al

in Proceedings "VI Congreso National de Ciencia y Tecnologia de Alimentos" (2003)

Detailed reference viewed: 27 (4 ULg)
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See detailEvaluacion de la peligrosidad y del riesgo de reincidencia
Mormont, Christian ULg; Giovannangeli, Dominique; Sanchez, Marcos Randulfe et al

in Gomez, Fernando Jimenez (Ed.) Evaluacion psicologica forense. 1. Fuentes de informacion, abusos sexuales, testimonio, peligrosidad y reincidencia (2001)

Detailed reference viewed: 14 (0 ULg)
See detailEvaluacion del comportamiento agressivo en ninos preescolares
Born, Michel ULg; Egido, A.; Pire, B.

in Revista Galega de Psicopedagogia (1995), 12(8), 149-165

Detailed reference viewed: 20 (1 ULg)
Peer Reviewed
See detailEvaluación del Programa Nacional de Control de Calidad de Laboratorios de Diagnóstico Micológico
Davel, G.; Canteros, C.; Rodero, L. et al

Poster (1998, August 12)

Detailed reference viewed: 5 (2 ULg)
See detailEvaluacion isocinetica de las ligamentoplastias de rodilla
Croisier, Jean-Louis ULg; Villanueva, F. J.; Delcour, J. P. et al

in Utilidad de la reeducacion. Inflamación (1996), 7

Detailed reference viewed: 12 (0 ULg)
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See detailEvaluación mediante métodos ópticos de la funcionalidad de policationes sintéticos para el enmascaramiento de sitios antigénicos en el eritrocito humano
Relancio, MF; Riquelme, B; Dumas, D et al

in Anales de la Asociación Argentina de Física (2006)

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See detailEvaluación mediante métodos ópticos de la funcionalidad de policationes sintéticos para el enmascaramiento de sitios antigénicos en el eritrocito humano
Relancio, M.F; Riquelme, B; Dumas, D et al

Poster (2006, September 25)

Detailed reference viewed: 12 (0 ULg)
See detailEvaluarea continua a elevilor si examenele
de Landsheere, Gilbert ULg

Book published by Editura didactica si pedagogica (1975)

Detailed reference viewed: 45 (1 ULg)
See detailEvaluarea continua a elevilor si examenelor manual de docimologie
de Landsheere, Gilbert ULg; Ceauşu, Mariana; Frimu, C. Constantin

Book published by Editura Pedagogica (1975)

Detailed reference viewed: 28 (0 ULg)
See detailEvaluarea rezistentei la foc a planseelor compuse protejate partial
Zaharia, Raul; Dubina, Dan; Pintea, Dan et al

Book published by Orizonturi Universitare (2011)

Detailed reference viewed: 35 (6 ULg)
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See detailEvaluatie van de gevolgen van de aanwezigheid van kalknodules in beton - Besluiten
Courard, Luc ULg; Darimont, Anne ULg; Degée, Hervé ULg

Report (2010)

De oorspronkelijke verontreiniging (0.7% van het gewicht aan granulaten) is met factor 100 verminderd tijdens de productie van de granulaten en het verwerken van het beton. De maximale verontreiniging ... [more ▼]

De oorspronkelijke verontreiniging (0.7% van het gewicht aan granulaten) is met factor 100 verminderd tijdens de productie van de granulaten en het verwerken van het beton. De maximale verontreiniging geobserveerd op de werf is 0.006% van het gewicht aan granulaten. Op de werf zijn de pop-outs weinig talrijk, de kalknodules zijn klein en de pop-outs ondiep. Geen enkele scheurvorming trof het beton. Het besluit van deze studie, op basis van een worstcasescenario en met een aan zekerheid grenzende waarschijnlijkheid, is dat de verontreiniging geen risico inhoudt wat betreft duurzaamheid en stabiliteit van de werken. We bedoelen daarmee dat het risico op verlies van sterkte en het risico voor stabiliteit en duurzaamheid van structurele elementen (platen, wanden, balken) verbonden aan de aanwezigheid van nodules zo miniem zijn dat ze in feite kleiner zijn dan de risico’s ten gevolge van de normaal aanvaardbare variabiliteit van de eigenschappen van beton, in overeenstemming met de omstandigheden op de werf. Na hydratatie oefenen de verdichte portlandiet-nodules geen druk meer uit en gedragen ze zich als gewone granulaten. De risico’s verbonden aan de betonverontreiniging door kalknodules zijn dus uitsluitend esthetisch van aard en betreffen een maximale diepte van 2 tot 4 cm. [less ▲]

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See detailEvaluatie van de gevolgen van de aanwezigheid van kalknodules in beton - Gedetailleerd verslag
Courard, Luc ULg; Darimont, Anne ULg; Degée, Hervé ULg

Report (2010)

De oorspronkelijke verontreiniging (0.7% van het gewicht aan granulaten) is met factor 100 verminderd tijdens de productie van de granulaten en het verwerken van het beton. De maximale verontreiniging ... [more ▼]

De oorspronkelijke verontreiniging (0.7% van het gewicht aan granulaten) is met factor 100 verminderd tijdens de productie van de granulaten en het verwerken van het beton. De maximale verontreiniging geobserveerd op de werf is 0.006% van het gewicht aan granulaten. Op de werf zijn de pop-outs weinig talrijk, de kalknodules zijn klein en de pop-outs ondiep. Geen enkele scheurvorming trof het beton. Het besluit van deze studie, op basis van een worstcasescenario en met een aan zekerheid grenzende waarschijnlijkheid, is dat de verontreiniging geen risico inhoudt wat betreft duurzaamheid en stabiliteit van de werken. We bedoelen daarmee dat het risico op verlies van sterkte en het risico voor stabiliteit en duurzaamheid van structurele elementen (platen, wanden, balken) verbonden aan de aanwezigheid van nodules zo miniem zijn dat ze in feite kleiner zijn dan de risico’s ten gevolge van de normaal aanvaardbare variabiliteit van de eigenschappen van beton, in overeenstemming met de omstandigheden op de werf. Na hydratatie oefenen de verdichte portlandiet-nodules geen druk meer uit en gedragen ze zich als gewone granulaten. De risico’s verbonden aan de betonverontreiniging door kalknodules zijn dus uitsluitend esthetisch van aard en betreffen een maximale diepte van 2 tot 4 cm. [less ▲]

Detailed reference viewed: 26 (1 ULg)
See detailEvaluatie van de nieuwe dopamine-agonist CV 205-502 in de behandeling van prolactinomen
Verhelst, J.; Abs, R.; Beckers, Albert ULg et al

in Acta Antwerpiensia (1992), 9

Detailed reference viewed: 13 (0 ULg)
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See detailEvaluating a calibration method for the estimation of fragmented rocks 3D-size-distribution out of 2D images
Outal, Souhail; Schleifer, Jacques; Pirard, Eric ULg

in Sanchidrian, J. A. (Ed.) Fragblast 9 (2009)

Image analysis is a tool having great potential for the quantification of fragmented rocks size-distribution. This recent technique should be validated according to sieving measurements. Current acquisi ... [more ▼]

Image analysis is a tool having great potential for the quantification of fragmented rocks size-distribution. This recent technique should be validated according to sieving measurements. Current acquisi-tion allows the obtaining of only 2D information from images. In addition, the 3D passage is extremely prob-lematic. Firstly, the usual stereological methods do not work because the reasoning is carried out on non-random projections. Secondly, estimated sizes differ from those measured by sieving. Last, a quantity of mat-terial measured during sieving remains inaccessible by image analysis, due to masking and segregation. This paper evaluates a method directly connecting 2D raw data to 3D sieving measurements. The cited problems are reduced as much as possible thanks to the adoption of an isotropic 2D sorting criterion, and thanks to samples without masking and segregation. Important results have been obtained. Firstly, the characteristic size is correctly estimated in 2D, giving access to computing the uniformity index through known models. Secondly, the stereological approach, bringing into play proportions, is not sufficiently robust to reconstruct easily volume distributions. Limits of this kind of methods, which are, unfortunately, currently used in several granulometric applications, are analyzed. [less ▲]

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See detailEvaluating an ICT-Mediated Innovative Training Service from Users’ Perspective. An Exploratory Case Study
Peters, Stéphanie ULg; Ledent, Maryse ULg; Hansez, Isabelle ULg

Conference (2008, July)

By the way of a case study, this paper aims at evaluating the innovative dimension of a training service mediated through Information and Communication Technology (ICT): the so-called e-WOCCQ. The ... [more ▼]

By the way of a case study, this paper aims at evaluating the innovative dimension of a training service mediated through Information and Communication Technology (ICT): the so-called e-WOCCQ. The originality of this article is twofold: (1) to question innovation, and (2) to consider the training more commonly as a service, whose major particularity is the implication of the user in the process. The theoretical framework emphasises on the definition of a service and on the concept of added-value. As this experience took place at the very beginning of the project development, an empirical methodology was developed. We assume that the so-called e-WOCCQ is an innovation as it represents an added value for the users. Results show that e-WOCCQ generates costs and benefits of different order, and that the ratio is influenced by factors mostly linked either with the user. Practical (improvements and targeting) and theoretical (modelisation) implications are discussed. [less ▲]

Detailed reference viewed: 34 (3 ULg)
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See detailEvaluating an ICT-mediated innovative training service from users' perspective: an explorative case study
Peters, Stéphanie ULg; Ledent, M.; Hansez, Isabelle ULg

in Proceedings of the ED-Media Conference 2008 (2008)

By the way of a case study, this paper aims at evaluating the innovative dimension of a training service mediated through Information and Communication Technology (ICT): the so-called e-WOCCQ. The ... [more ▼]

By the way of a case study, this paper aims at evaluating the innovative dimension of a training service mediated through Information and Communication Technology (ICT): the so-called e-WOCCQ. The originality of this article is twofold: (1) to question innovation, and (2) to consider the training more commonly as a service, whose major particularity is the implication of the user in the process. The theoretical framework emphasises on the definition of a service and on the concept of added-value. As this experience took place at the very beginning of the project development, an empirical methodology was developed. We assume that the so-called e-WOCCQ is an innovation as it represents an added value for the users. Results show that e-WOCCQ generates costs and benefits of different order, and that the ratio is influenced by factors mostly linked either with the user. Practical (improvements and targeting) and theoretical (modelisation) implications are discussed. [less ▲]

Detailed reference viewed: 35 (1 ULg)
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See detailEvaluating analytical results reliability using a Bayesian probability criterion
Rozet, Eric ULg; Lebrun, Pierre ULg; Boulanger, Bruno ULg et al

Poster (2010, December 02)

In pharmaceutical industries, quantitative analytical methods such as HPLC play a key role. Indeed, the analytical results obtained from them are used to make crucial decisions such as the release of ... [more ▼]

In pharmaceutical industries, quantitative analytical methods such as HPLC play a key role. Indeed, the analytical results obtained from them are used to make crucial decisions such as the release of batches of drugs, the evaluation of safety and efficacy of new drug candidates or the monitoring of patients health. Prior to their routine use, analytical methods are submitted to a stringent validation study where they have to demonstrate that they are fit for their final purpose, i.e. providing accurate result . Typically this demonstration is made by either providing point estimates of systematic error (bias) and random error (variance) or sometimes by providing interval estimates of these statistical parameters at several well defined concentration levels of the target analyte. They are then compared to maximum acceptable levels. More recently, tolerance intervals approaches have been proposed that are evaluated in a similar way at these key concentration levels. However none of these decision approaches allow knowing the probability to obtain accurate results over the whole concentration range of interest. Frequentist approximations have been proposed to estimate this probability but only at the concentration levels experimentally tested and not for the whole range of interest. In this work, a linear hierarchical Bayesian approach is proposed. It takes into account the potential random characteristic of the slope and intercept observed from one analytical run to the other, and also integrates the possible covariance between the parameters. Additionally, heteroscedasticity of the residual variance over the concentration range investigated is taken into account. A situation regularly observed in practice. Finally a reliability profile for the whole concentration range studied is obtained using MCMC sampling. This profile provides the probability (Prel) to obtain accurate results over the full concentration range investigated. This profile is then compared to a minimum reliability probability (Pmin) that will define the valid concentration range of the analytical method. The usefulness of this approach is illustrated through the validation of a bioanalytical method and also compared with a one concentration level at a time frequentist approach derived from tolerance intervals. [less ▲]

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See detailEvaluating bound on voltage and thermal security margins under power transfer uncertainty.
Van Cutsem, Thierry ULg

(2002, June)

This paper deals with the evaluation of bounds on voltage and thermal security margins with respect to contingencies. A margin is the maximal pre-contingency power transfer between either a generation and ... [more ▼]

This paper deals with the evaluation of bounds on voltage and thermal security margins with respect to contingencies. A margin is the maximal pre-contingency power transfer between either a generation and a load area or two generation areas, such that specirfied contingencies do not overload lines or make the system voltage unstable. The minimum and maximum margins are computed for given intervals of variations of bus injections. Each bound is the solution of a constrained L1-norm minimization (or maximization) problem, for which specific algorithms are given. Thermal overloads are handled through linearization, while for voltage stability, fast time simulation and instability mode analysis are used. Nonlinear situations of branch overload are also considered. The method is illustrated on an 80-bus test system. [less ▲]

Detailed reference viewed: 41 (9 ULg)
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See detailEvaluating bounds on voltage and thermal security margins under power transfer uncertainty
Capitanescu, Florin ULg; Van Cutsem, Thierry ULg

(2002, June)

This paper deals with the evaluation of bounds on voltage and thermal security margins with respect to contingencies. A margin is the maximual pre-contingency power transfer between either a generation ... [more ▼]

This paper deals with the evaluation of bounds on voltage and thermal security margins with respect to contingencies. A margin is the maximual pre-contingency power transfer between either a generation and a load area or two generation areas, such that the specified contingencies do not overload lines or make the system voltage unstable. The minimum and maximum margins are computed for given intervals of variations of bus injections. Each bound is the solution of a constrained L1-norm minimization (or maximization) problem, for which specific algorithms are given. Thermal overloads are handled through linearization, while for voltage stability, fast time simulation and instability mode analysis are used. Nonlinear situations of branch overloads are also considered. The method is illustrated on an 80-bus test system. [less ▲]

Detailed reference viewed: 54 (10 ULg)
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See detailEvaluating climate model performance with various parameter sets using observations over the recent past
Loutre, M.-F.; Mouchet, Anne ULg; Fichefet, T. et al

in Climate of the Past (2011), 7

Detailed reference viewed: 14 (3 ULg)