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See detailExtracting high resolution records of deformation from well-imaged sections
Suppe, J; Gonzalez-Mieres, R; Hubert, Aurelia ULg

in Abstracts with Programs - Geological Society of America (2006, October), 38(7), 132

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See detailExtracting Intra-Domain Topology from mrinfo Probing
Pansiot, Jean-Jacques; Mérindol, Pascal; Donnet, Benoît ULg et al

in 11th international Conference on Passive and active Measurement (2010, April)

Activeandpassivemeasurementsfortopologydiscoveryhave known an impressive growth during the last decade. If a lot of work has been done regarding inter-domain topology discovery and modeling, only a few ... [more ▼]

Activeandpassivemeasurementsfortopologydiscoveryhave known an impressive growth during the last decade. If a lot of work has been done regarding inter-domain topology discovery and modeling, only a few papers raise the question of how to extract intra-domain topologies from measurements results. In this paper, based on a large dataset collected with mrinfo, a multicast tool that silently discovers all interfaces of a router, we provide a mechanism for retrieving intra-domain topologies. The main challenge is to assign an AS number to a border router whose IP addresses are not mapped to the same AS. Our algorithm is based on probabilistic and empirical IP allocation rules. The goal of our pool of rules is to converge to a consistent router to AS mapping. We show that our router-to-AS algorithm results in a mapping in more than 99% of the cases. Furthermore, with mrinfo, point-to-point links between routers can be distinguished from multiple links attached to a switch, providing an accurate view of the collected topologies. Finally, we provide a set of large intra-domain topologies in various formats. [less ▲]

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See detailExtracting laws of decay in the femto-picosecond range from autocorrelation functions
Remacle, Françoise ULg; Desouter, Michèle ULg; Lorquet, Jean-Claude

in Journal of Chemical Physics (1989), 91

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See detailExtracting Meronymy Relationships from Domain-Specific, Textual Corporate Databases
Ittoo, Ashwin ULg; Bouma, Gosse; Maruster, Laura et al

in Lecture Notes in Computer Science (2010)

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See detailExtraction and characterisation of a dietary fibre concentrate from date pulp
Roiseux, O.; Blecker, Christophe ULg; Besbes, S. et al

Poster (2006, June)

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See detailExtraction and Clean-Up of Milk Samples for PCDD/Fs and cPCBs Analysis
Focant, Jean-François ULg; De Pauw, Edwin ULg

in Organohalogen Compounds (2001), 50

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See detailExtraction and fractionation of cytotoxic metabolites from Galanthus lagodechianus Kem.-Nath
Jokhadze, Malkhaz; Kutchukhidze, J.; Murtazashvilia, T. et al

in Allergology and Immunology (Moscou) (2006), 7

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See detailExtraction and partial purification of tomato leaves hydroperoxide lyase
Fauconnier, Marie-Laure ULg; Lecoq, S.; Marlier, M.

Poster (1995, September 27)

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See detailExtraction by three processes of arabinoxylans from wheat bran and characterization of the fractions obtained
Aguedo, Mario ULg; Fougnies, Christian; DERMIENCE, Michael ULg et al

in Carbohydrate Polymers (2014), 105

Arabinoxylans (AXs) were extracted from destarched wheat bran (DWB) according to different processes, with a view to their production at industrial scale. Two fractions (F3a and F3b, respectively purified ... [more ▼]

Arabinoxylans (AXs) were extracted from destarched wheat bran (DWB) according to different processes, with a view to their production at industrial scale. Two fractions (F3a and F3b, respectively purified on 10 kDa and 100 kDa ultrafiltration membranes) were obtained with low yields by treating DWB with an endoxylanase and this process left a solid residue exhausted in enzyme-extractable AXs (EDWB). F1 and F2 AX fractions were obtained by treatment with sodium hydroxide of respectively DWB and EDWB. The fraction F4 resulted from a hydrothermal treatment of EDWB in a pressure reactor, followed by ethanol precipitation. The different AX fractions were characterized and compared for the composition in monosaccharides, for the contents in fats and in ferulic, phytic and uronic acids, for the molecular mass distribution and the degrees of methylation and acetylation. The alkaline extractions gave one desesterified AX population with molecular mass (MM) higher than 670 kDa and arabinose/xylose ratios (Ara/Xyl) around 1. The enzyme and thermal treatments yielded AXs with two main populations in size-exclusion chromatography (the largest one at 5-12.5 kDa and a second one at 140-160 kDa), having overall Ara/Xyl of respectively 0.7 and 0.5 for both processes. These data bring information about the influence of the process on the characteristics of AX fractions obtained from pretreated wheat bran. Here are also reported processes that enabled to recover enzyme-unextractable AXs from DWB, including an original and up-scalable hydrothermal extraction. Phytate contents of isolated AXs are described for the first time. [less ▲]

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See detailExtraction conditions can greatly influence antioxidant capacity assays in plant food matrices
Michiels, Jean-Albert ULg; Kevers, Claire ULg; Pincemail, Joël ULg et al

in Food Chemistry (2012), 130

The estimated antioxidant capacity of different matrices can vary considerably between research reports. Besides intrinsic factors (not studied here), our work showed that may have various causes. Firstly ... [more ▼]

The estimated antioxidant capacity of different matrices can vary considerably between research reports. Besides intrinsic factors (not studied here), our work showed that may have various causes. Firstly, different methods are used to measure antioxidant capacity. Secondly, the results obtained for a single matrix by one method (such as ORAC) can vary with the extraction conditions. Parameters having a great impact on the amount and composition of antioxidants in extracts, and thus on the measured antioxidant capacity, notably include the extraction solvent composition, temperature, extraction time (duration), solvent-to-solid ratio, and storage conditions. Standardization of the extraction procedure is thus necessary for accurate and reproducible determination of the antioxidant capacity and phenolics in different food matrices by different laboratories. In this study we optimised such a procedure for four fresh plant matrices (orange, apple, leek, and broccoli). The optimised procedure requires extraction in a mixture of acetone/water/acetic acid (70/28/2, v/v/v) for 1 h at 4°C, with a solvent-to-solid ratio of 20 mL per 1 g. Fresh material should be used, but if this is not possible, one may lyophilise the plant matrices or store the extracts for a few days at -20°C before analysis. [less ▲]

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See detailExtraction d'un modèle numérique de terrain au départ d'images stéréoscopiques SPOT sur le bassin versant de l'Oued Tasrafete
Tahiri, Driss; Binard, Marc ULg; Donnay, Jean-Paul ULg

in Géo Observateur (1992, October)

Cette communication présente les résultats de la reconstitution automatique du relief à partir de deux scènes SPOT couvrant une zone montagneuse du nord du Maroc. Le système utilisé (module Digital Ortho ... [more ▼]

Cette communication présente les résultats de la reconstitution automatique du relief à partir de deux scènes SPOT couvrant une zone montagneuse du nord du Maroc. Le système utilisé (module Digital Ortho de ERDAS) s'appuie sur le principe de la corrélation automatique qui, pour la recherche des points homologues, fonctionne hiérarchiquement à plusieurs niveaux de résolution. L'évaluation de la précision du MNT obtenu a été réalisée à l'aide de données altimétriques extraites des cartes topographiques existantes (échelle: 1/50 000) et a révélé une erreur moyenne quadratique de ±15 m. Cette précision est suffisante pour rétablissement d'orthoimages ou pour l'interpolation des courbes de niveau pour des cartes topographiques aux échelles 1/100 000 et plus petites. [less ▲]

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See detailExtraction d'une canine chez un ours polaire
DUFOUR, Pascale ULg; Balligand, Marc ULg; Pypendop, B. et al

in Annales de Médecine Vétérinaire (1995)

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See detailL'extraction de matrices solides
Ziemons, Eric ULg; Hubert, Philippe ULg

Learning material (2007)

La préparation de l'échantillon est une étape clé et indispensable au dosage de l'analyte dans la matrice solide. Les principes de base et applications des procédés dits "conventionnels" (macération ... [more ▼]

La préparation de l'échantillon est une étape clé et indispensable au dosage de l'analyte dans la matrice solide. Les principes de base et applications des procédés dits "conventionnels" (macération, percolation et soxhlet) et "modernes" (micro-ondes,assistée par solvant et en phase supercritique) sont repris dans le document. Compte tenu de l'utilisation et des avantages de l'extraction par les fluides supercritiques, ce procédé est présenté plus en détails. [less ▲]

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See detailExtraction de molécules à haute valeur ajoutée dans un but de maximisation de la valeur créée
Richel, Aurore ULg

Conference (2013)

Les recherches académiques dans le domaine du bioraffinage sont présentées au travers de schémas complets de valorisation. Les matières premières ciblées sont les résidus agricoles et forestiers, les ... [more ▼]

Les recherches académiques dans le domaine du bioraffinage sont présentées au travers de schémas complets de valorisation. Les matières premières ciblées sont les résidus agricoles et forestiers, les cultures énergétiques et les résidus des industries alimentaires. Le cracking et la conversion ultérieure de ces matières premières permettent l'obtention de biocarburants, bioproduits ou nouvelles formulations (filière biomasse-chimie). [less ▲]

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See detailL’extraction des huiles essentielles par micro-ondes : Quels avantages ?
Ramdani, M.; Benchat, N.; Amhamdi, H. et al

Poster (2010)

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See detailExtraction of $\alpha_s$ from deep inelastic scattering at large $x$
Courtoy, Aurore ULg; Liuti, Simonetta

in Physics Letters B (2013), B726

Detailed reference viewed: 10 (0 ULg)