References of "Léonard, Angélique"
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See detailContribution to the modeling of wastewater sludge drying kinetics: study of the operating conditions effect
Bennamoun, Lyes; Belhamri, A.; Léonard, Angélique ULg

in Tsotsas, E.; Metzger, T.; Peglow, M. (Eds.) Proceedings of IDS 2010 - Drying 2010 (2010, October)

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See detailOn the modeling of convective drying tests on soil samples in non-isothermal conditions
Gerard, Pierre ULg; Léonard, Angélique ULg; Charlier, Robert ULg et al

in Tsotsas, E.; Metzger, T.; Peglow, M. (Eds.) Proceedings of IDS 2010 - Drying 2010 (2010, October)

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See detailAspects pratico-techniques du séchage des boues d'épuration
Léonard, Angélique ULg; Crine, Michel ULg

Conference given outside the academic context (2010)

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See detailA comparison of physical activation of carbon xerogels with carbon dioxide with chemical activation using hydroxides
Contreras, María S; Páez, Carlos A; Zubizarreta, Leire et al

in Carbon (2010), 48(11), 3157-3168

Carbon xerogels synthesized with a fixed resorcinol/sodium carbonate molar ratio (R/C) were physically activated using CO2. The effect of activation temperature and activation time on the final properties ... [more ▼]

Carbon xerogels synthesized with a fixed resorcinol/sodium carbonate molar ratio (R/C) were physically activated using CO2. The effect of activation temperature and activation time on the final properties of the activated carbon xerogels was evaluated. The specific surface area increases from ~600 m2 g-1 to 2000 m2 g-1 and more by increasing the temperature and duration of the activation step. A comparison between physical activation with CO2 and chemical activation with hydroxides was also performed: it was found that both processes produce an increase of the micropore volume and specific surface area without altering the meso-macroporosity developed during the synthesis. However, chemical activation can lead to the development of the narrow microporosity mainly whereas, in physical activation, the widening of the narrow micropores takes place whatever the process conditions. [less ▲]

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See detailImpact of storage at 4°C on the study of sludge drying emissions
Fraikin, Laurent ULg; Herbreteau, Benjamin; Chaucherie, Xavier et al

Conference (2010, September)

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See detailImpact of liming operating conditions on the convective drying kinetics of urban residual sludges
Royer, Sandrine; Blandin, Gaëtan; Salmon, Thierry ULg et al

Conference (2010, September)

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See detailIntroduction – L’Analyse du Cycle de vie au sein des outils de management
Léonard, Angélique ULg

Conference (2010, June 10)

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See detailAnalyse par cycle de vie des systèmes énergétiques
Belboom, Sandra ULg; Léonard, Angélique ULg

Diverse speeche and writing (2010)

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See detailLes voies traditionnelles de production d’hydrogène
Léonard, Angélique ULg

Conference (2010, May 27)

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See detailComparison of agricultural soils' structure depending on tillage system using X-ray microtomography
Beckers, Eléonore ULg; Ly, Sarann ULg; Léonard, Angélique ULg et al

in Geophysical Research Abstracts (2010, May), 12

This study aims at characterizing agricultural soils’ structure depending on the tillage system: conventional tillage or conservational tillage. Tillage reduction is an increasing practice, but the micro ... [more ▼]

This study aims at characterizing agricultural soils’ structure depending on the tillage system: conventional tillage or conservational tillage. Tillage reduction is an increasing practice, but the micro-structural effects on soils and on their hydrodynamic parameters are still not well described. Recent research shows non-converging results. Our point is to highlight fundamental differences in structure through characterization of soils porosity’s parameters using X-ray microtomography measurements coupled to image analysis. This attempt is in line with a more integrated experiment of which the aim is to quantify the effects of tillage intensity on lateral flow production, and finally on global water balance. Parameters’ measurements consist in a combined approach, based on two different space-time scales of exploration: fundamental scale, with soil sampling campaign for microtomography analysis, and field scale, with continuous flow measurements (plots’ dimensions: 18*28 m). For their part, parameters for water balance determination (precipitation, evapotranspiration…) are monitored on the field. All of these measurements have the main objective of hydrological modeling enhancement by taking into account a better lateral flow description. Discussion in this paper will focus on the first results obtained by X-ray microtomography measurements. Our experiment takes place in Gentinnes (Walloon Brabant, Belgium), on a field organized in a split-plot scheme. Since 2004, plots have been cultivated in conventional tillage or in reduced tillage. The latter consists in sowing after stubble ploughing of about 10cm. The crop rotation is sugar beet followed by winter wheat. The soil is mainly composed of silt loam. Soils samples, with a 3 cm diameter and a 5 cm height, were removed from the upper layer (Ap horizon) for both management practices. Samples are scanned by X-ray microtomography using a Skyscan-1172 high-resolution desk-top micro-CT system (Skyscan, Kontich, Belgium). The cone beam source operated at 100 kV, using an aluminium filter. The detector configuration, i.e. 1048×2000 pixels 16-bit X-ray camera, and the distance source-object-camera were adjusted to produce images with a pixel size of 17 µm. This resolution allows us to visualize both meso- and macro- porosity. In this study, half the samples were placed under a 15000 kPa pressure (corresponding pressure for the wilting point) in Richards’ apparatus in order to empty the meso- and macro-porosity. To determine a priori the class of porosity for the samples, relations between water retention and pressure head can be plotted using this apparatus. Scanning results consist in 2D images. The 2D images are recombined to form 3D structure. Then the pore network can be analyzed through useful factors like size distribution, shape, connectivity, orientation, tortuosity etc. [less ▲]

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See detailA life-cycle assessment of injectable drug primary packaging : comparing the traditional process in glass vials with the new Closed Vial technology (polymer vials)
Belboom, Sandra ULg; Renzoni, Roberto ULg; Verjans, Benoît et al

Poster (2010, February 01)

This study based on the life cycle assessment methodology compares environmental impacts of two packaging alternatives used for injectable drugs: the traditional method based on glass vials and the new ... [more ▼]

This study based on the life cycle assessment methodology compares environmental impacts of two packaging alternatives used for injectable drugs: the traditional method based on glass vials and the new method developed by Aseptic Technologies based on polymer vials. [less ▲]

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See detailLife cycle environmental performance of using substitution fuels in cement production
Belboom, Sandra ULg; Halleux, Hubert; Léonard, Angélique ULg et al

Poster (2010, February 01)

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See detailA life-cycle assessment of injectable drug primary packaging : comparing the traditional process in glass vials with the new Closed Vial technology (polymer vials)
Belboom, Sandra ULg; Renzoni, Roberto ULg; Verjans, Benoît et al

in Programme book : SETAC EUrope 16th LCA Case Studies Symposium : From simplified LCA to advanced LCA (2010, February)

This study based on the life cycle assessment methodology compares environmental impacts of two packaging alternatives used for injectable drugs: the traditional method based on glass vials and the new ... [more ▼]

This study based on the life cycle assessment methodology compares environmental impacts of two packaging alternatives used for injectable drugs: the traditional method based on glass vials and the new method developed by Aseptic Technologies based on polymer vials. [less ▲]

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See detailLife cycle environmental performance of using substitution fuels in cement production
Belboom, Sandra ULg; Halleux, Hubert; Léonard, Angélique ULg et al

in Programme book : SETAC EUrope 16th LCA Case Studies Symposium : From simplified LCA to advanced LCA (2010, February)

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See detailMicrotomographic investigation of a yeast grain porous structure
Debaste, Frédéric; Léonard, Angélique ULg; Halloin, Véronique et al

in Journal of Food Engineering (2010), 97

Detailed reference viewed: 33 (7 ULg)