Publications ORBi OA
Bookmark and Share    
Full Text
See detailAutour d’un thé
Ozer, Pierre ULg

Article for general public (2005)

Il y a peu, j'étais au Niger, un pays dont, pour une fois, on parlait abondamment car trois millions de personnes souffraient de malnutrition et risquaient d'y laisser la vie à cause d'une saison des ... [more ▼]

Il y a peu, j'étais au Niger, un pays dont, pour une fois, on parlait abondamment car trois millions de personnes souffraient de malnutrition et risquaient d'y laisser la vie à cause d'une saison des pluies déficitaire dans un pays déjà gangrené par la désertification. Et, après des mois d'indifférence puis de tergiversations, les autres pays du grand village planétaire décidèrent de sauver ces moins nantis. In extremis. Notre mission était d'organiser au mieux la distribution de l'aide alimentaire. Et nous voici déjà confrontés à un problème inattendu : l'insuffisance de véhicules pour transporter les vivres dans les villages les plus reculés et difficiles d'accès. Les quelques 4x4 rapidement réquisitionnés ne suffisaient pas. Un soir de vent de sable, j'ai discuté avec les locaux autour du thé. Au détour de notre conversation, je leur ai appris que nous avions en Belgique de gros bolides aux quatre roues motrices appelés « Touareg ». Etonnés, les touaregs, ceux d'appellation d'origine contrôlée, ont observé le silence et m'ont longuement regardé droit dans les yeux. La lune était notre seule lumière, le vent était retombé, et ce silence n'était perturbé que par les pleurs de quelques enfants affamés ne trouvant pas le sommeil. Le plus vieux d'entre eux esquissa alors un large sourire et me dit : « c'est que vos routes sont en très mauvais état ». Alors, je leur ai dissimulé que nous ne connaissions pas les pistes sinon via les images du Paris-Dakar. J'ai gardé pour moi que les routes ravagées par les ravines ou les nids d'autruches comblés par des immondices pour les rendre un temps soit peu carrossables n'existaient pas chez nous. Je ne leur ai pas dit non plus que Bruxelles comptait plus de véhicules tout-terrain que le Niger. Non, je n'ai rien dit de tout cela. J'ai ébauché à mon tour un large sourire et j'ai goûté au deuxième thé, légèrement sucré, le thé de l'amitié, comme ils disent... [less ▲]

Detailed reference viewed: 23 (2 ULg)
Full Text
See detailPreparation of new radiation-curing binders
Detrembleur, Christophe ULg; Weikard, Jan; Greszta-Franz, Dorota et al

Patent (2005)

Process for preparing binders including reacting A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds containing groups capable of participating in ... [more ▼]

Process for preparing binders including reacting A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds containing groups capable of participating in polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and contain isocyanate-reactive groups, followed by C) reaction with one or more hydroxyl-containing compounds other than B), wherein at least one of these compounds has an OH functionality of >=2, D) in the presence of one or more compounds containing phenoxide groups, as catalysts, and E) optionally auxiliaries and additives, where the reaction with compounds of component C); proceeds at least proportionally with the formation of allophanate groups and where and including binders containing allophanate groups and groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally also contain NCO-reactive groups. The binders are used in coating compositions used to coat substrates [less ▲]

Detailed reference viewed: 8 (2 ULg)
Full Text
See detailLow viscosity allophanates containing actinically curable groups
Detrembleur, Christophe ULg; Weikard, Jan; Grestza-Franz, Dorota et al

Patent (2005)

A process for preparing binders containing allophanate groups which contain, at the oxygen atom of the allophanate group that is bonded via two single bonds, organic radicals with activated groups capable ... [more ▼]

A process for preparing binders containing allophanate groups which contain, at the oxygen atom of the allophanate group that is bonded via two single bonds, organic radicals with activated groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation; the process includes reacting A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and C) optionally further NCO-reactive compounds, and D) in the presence of one or more compounds containing phenoxide groups, as catalysts.; The binders can be used in preparing coatings, coating materials, coating compositions, adhesives, printing inks, casting resins, dental compounds, sizes, photoresists, stereolithography systems, resins for composite materials and sealants. [less ▲]

Detailed reference viewed: 9 (3 ULg)
Full Text
See detailOuvrir les yeux
Rentier, Bernard ULg

Speech/Talk (2005)

Detailed reference viewed: 13 (1 ULg)
Full Text
See detailOverhead power lines real time monitoring : a future trend ?
Lilien, Jean-Louis ULg

Conference given outside the academic context (2005)

general overview of ampacity problem in power lines

Detailed reference viewed: 35 (3 ULg)
Full Text
See detailSugar esters lipase mediated synthesis from vegetable oils
Destain, Jacqueline ULg; Detry, Jean; Lognay, Georges ULg et al

Scientific conference (2005, September 19)

Detailed reference viewed: 36 (3 ULg)
Full Text
See detailDe l'innovation à la performance
Van Caillie, Didier ULg

Article for general public (2005)

This vulgarisation paper investigates the links between innovation and performance at the corporate level and insists on the importance of sustaining innovation through judicious public measures to ... [more ▼]

This vulgarisation paper investigates the links between innovation and performance at the corporate level and insists on the importance of sustaining innovation through judicious public measures to reinforce competitiveness in industrial firms. [less ▲]

Detailed reference viewed: 65 (5 ULg)
Full Text
See detailEvaluation des performances zootechniques du Piétrain stress négatif en croisement industriel
Do Duc, Luc ULg

Master of advanced studies dissertation (2005)

The objective of this study was to evaluate the zootechnical performances (average daily gain, pH of the loin at 45 minutes after slaughter and meat percentage) of Stress-negative Piétrain (Piétrain RéHal ... [more ▼]

The objective of this study was to evaluate the zootechnical performances (average daily gain, pH of the loin at 45 minutes after slaughter and meat percentage) of Stress-negative Piétrain (Piétrain RéHal) in industrial cross. The effects of genotype (CC, CT TT and Com), sex (male and female), year of fattening (from 1996 to 2004) and cage (37 cages) on the study parameters have been estimated. The observed values ranged from 574.5 to 668.1 g for the average daily gain, from 6.05 to 6.42 for the pH of loin at 45 minutes post mortem, and from 60.10 to 64.29% for the lean percentage. The average daily gain of pig of the commercial line (Com) was higher (from + 87.2 to + 93.7 g), but inversely presented a carcass lean percentage lower than those of CC, CT and TT. The pH of the loin at 45 minutes post mortem of pig CT and Com was similar (6.3 and 6.2 respectively) and hold an intermediate position between CC (6.4) and TT (6.0), even though this value of genotype TT was lower. The male presented a superior growth rate (+ 35.4 g) but a carcass lean percentage inferior (- 1.82 %) to the female one. The sex was not a significant effect on the pH of loin at 45 minutes post mortem (p > 0.05). The fattening year had a significant effect (p < 0.001) on all studied parameters however, without any particularly trend. [less ▲]

Detailed reference viewed: 36 (4 ULg)
Full Text
See detailBulletin agrométéorologique - Août 2005
Tychon, Bernard ULg; Ozer, Pierre ULg; De Longueville, Florence ULg et al

in Bulletin Agrométorologique (2005), 4(5), 1-4

Le mois d’août a été caractérisé par des valeurs climatiques proches de la normale. Cependant, les températures et les valeurs de rayonnement étaient anormalement faibles. Par rapport à l’année dernière ... [more ▼]

Le mois d’août a été caractérisé par des valeurs climatiques proches de la normale. Cependant, les températures et les valeurs de rayonnement étaient anormalement faibles. Par rapport à l’année dernière et, sur l’ensemble du territoire, les prévisions de rendements des principales cultures printanières sont équivalentes dans le cas de la betterave sucrière, et à la baisse pour le maïs fourrager et la pomme de terre Bintje. [less ▲]

Detailed reference viewed: 8 (1 ULg)
Full Text
See detailMultiplication by a Constant and Recognizability in an Abstract Numeration System
Charlier, Emilie ULg

Poster (2005, September 12)

One of the main interesting concerns in work about numeration systems is studying the relationship that exist between arithmetic properties of numbers and syntactical properties of their representation ... [more ▼]

One of the main interesting concerns in work about numeration systems is studying the relationship that exist between arithmetic properties of numbers and syntactical properties of their representation. More precisely, we prefer to manipulate set of numbers whose representations are characterized by very simple syntactical rules, that is, forming a regular language. Such sets are called S-recognizable sets, where S is the numeration system we are working with. In particular, we would like to obtain numeration systems in which the whole set N is recognizable, partly due to the fact that, if the set of representations of all integers is regular, there are very simple algorithms making it possible to decide if a word stands or does not stand for a number. Some general questions in this area are the following. • Characterization of the recognizable parts in a fixed numeration system. • Determination of the numeration systems for which a given set of numbers is recognizable. • To examine the stability of recognizability under arithmetic operations. In this poster we present our research about that last problem. First, we will define the abstract numeration systems based on a regular language. Then we will study the relationship between multiplication by a constant and the S-recognizability for languages of the type a_1^∗ . . . a_k^∗. [less ▲]

Detailed reference viewed: 14 (2 ULg)
Full Text
See detailVinyl acetate: a challenge for living radical polymerisation
Debuigne, Antoine ULg

Scientific conference (2005, September 11)

Detailed reference viewed: 8 (1 ULg)
Full Text
Peer Reviewed
See detailMolecular characterisation of a versatile peroxidase from a Bjerkandera strain
Moreira, Patricia R.; Duez, Colette ULg; Dehareng, Dominique ULg et al

in Journal of Biotechnology (2005), 118(4), 339-352

The cloning and sequencing of the rbpa gene coding for a versatile peroxidase from a novel Bjerkandera strain is hereby reported. The 1777 bp isolated fragment contained a 1698 bp peroxidase-encoding gene ... [more ▼]

The cloning and sequencing of the rbpa gene coding for a versatile peroxidase from a novel Bjerkandera strain is hereby reported. The 1777 bp isolated fragment contained a 1698 bp peroxidase-encoding gene, interrupted by 11 introns. The 367 amino acid-deduced sequence includes a 27 amino acid-signal peptide. The molecular model, built via homology modelling with crystal structures of four fungal peroxidases, highlighted the amino acid residues putatively involved in manganese binding and aromatic substrate oxidation. The potential heme pocket residues (R44, F47, H48, E79, N85, H177, F194 and D239) include both distal and proximal histidines (H48 and H177). RBP possesses potential calcium-binding residues (D49, G67, D69, S71, S178, D195, T197, I200 and D202) and eight cysteine residues (C3, C15, C16, C35, C121, C250, C286, C316). In addition, RIBP includes residues involved in substrate oxidation: three acidic residues (E37, E41 and D183)-putatively involved in manganese binding and H83 and W172-potentially involved in oxidation of aromatic substrates. Characterisation of nucleotide and amino acid sequences include RBP in versatile peroxidase group sharing catalytic properties of both UP and MnP. In addition, the RBP enzyme appears to be closely related with the ligninolytic peroxidases from the Trametes versicolor strain. (C) 2005 Published by Elsevier B.V. [less ▲]

Detailed reference viewed: 60 (10 ULg)
Full Text
Peer Reviewed
See detailFunctionalization of poly(epsilon-caprolactone) by pendant hydroxyl, carboxylic acid and epoxide groups by atom transfer radical addition
Riva, Raphaël ULg; Lenoir, Sandrine ULg; Jérôme, Robert ULg et al

in Polymer (2005), 46(19), 8511-8518

A straightforward strategy is proposed for grafting hydroxyl, carboxylic acid and epoxide groups along poly (epsilon-caprolactone) chains. Statistical copolymerization of epsilon-caprolactone (epsilon-CL ... [more ▼]

A straightforward strategy is proposed for grafting hydroxyl, carboxylic acid and epoxide groups along poly (epsilon-caprolactone) chains. Statistical copolymerization of epsilon-caprolactone (epsilon-CL) with alpha-chloro-epsilon-caprolactone (alpha-Cl-epsilon-CL) has been initiated by 2,2-dibutyl-2-stanna-1,3-dioxepane (DSDOP), followed by the atom transfer radical addition (ATRA) of but-3-en-1-ol, vinylacetic acid and 1,2-epoxyhex-5-ene, respectively, onto the alpha-chloro units of a poly(alpha-Cl-epsilon-CL-co-epsilon-CL) copolymer. alpha-Cl-epsilon-CL is easily prepared by the Baeyer-Villiger oxidation of 2-chlorocyclohexanone. The influence of the experimental conditions, i.e. temperature, solvent, catalyst, on the grafting yield has been discussed. Because ATRA is tolerant of the investigated functional groups, no protection/deprotection reaction is required, which is a major advantage of the method. [less ▲]

Detailed reference viewed: 64 (5 ULg)
Full Text
See detailLe froment d'hiver
Vancutsem, Françoise ULg; Couvreur, Luc; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2005, September 08)

Detailed reference viewed: 9 (0 ULg)
Full Text
See detailEscourgeon et Orge d'hiver fourragers
Herman, Jean-Luc; Monfort, Bruno; Couvreur, Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2005, September 08)

Detailed reference viewed: 16 (1 ULg)
Full Text
See detailLa qualité des froments d'hiver en 2005?
Sinnaeve, Geoges; Lenartz, J.; Herman, Jean-Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2005, September 08)

Detailed reference viewed: 4 (0 ULg)
Full Text
See detailOr bleu / Or noir
BALTHASAR, JEAN PIERRE; COLLIGNON, FABRICE; DE WIT, PIERRE et al

Article for general public (2005)

Au grand mécontentement général, le prix du pétrole augmente irrésistiblement. Malgré cela, notre société ne semble pas disposée à changer ses habitudes. [...] Ces mois de vacances ont été riches en ... [more ▼]

Au grand mécontentement général, le prix du pétrole augmente irrésistiblement. Malgré cela, notre société ne semble pas disposée à changer ses habitudes. [...] Ces mois de vacances ont été riches en catastrophes climatiques. Ainsi, en Afrique de l'Ouest, des milliers de personnes ont disparu suite à une longue famine consécutive à un ciel resté trop longtemps avare en précipitations. En Méditerranée occidentale, on ne compte plus les milliers d'hectares de forêt partis en fumée à cause de la sécheresse. Au même moment, l'Europe centrale et orientale est lasse de patauger dans l'eau. Les spécialistes qualifient ces inondations comme étant les plus graves qu'aient connues la Suisse et la Roumanie. L'Inde est également noyée alors que Taïwan se prépare à la tempête la plus violente de son histoire. Et après ces préliminaires dramatiques, voici Katrina qui sème chaos et désolation. [...] [less ▲]

Detailed reference viewed: 62 (8 ULg)
Full Text
See detailNatural and projectively equivariant quantizations
Radoux, Fabian ULg

Conference (2005, September 02)

Detailed reference viewed: 5 (3 ULg)
Full Text
See detailVariabilité intra- et inter-races du profil en acides gras de la matière grasse du lait
Soyeurt, Hélène ULg

Master's dissertation (2005)

Currently there is no cattle selection program which is based on fatty acid profile in milk fat. According to several publications, both the saturated and insaturated fatty acids have positive as well as ... [more ▼]

Currently there is no cattle selection program which is based on fatty acid profile in milk fat. According to several publications, both the saturated and insaturated fatty acids have positive as well as negative effects on human health. So using overall milk fat as the only criteria in selection may be considered not appropriate. The aim of this research was to evaluate the potential effectiveness of selection on higher nutritional quality of milk fat. The variability within and across breeds for Dual Purpose Belgian Blue, Holstein-Friesian, Jersey, Montbeliarde and Red and White animals were analysed. The quantity of fatty acids in milk and milk fat was measured by medium infrared and were analysed using mixed model methodology; this analysis showed that several differences between the five dairy breeds for the profile of fatty acids exist. High repeatability estimates suggest that high additive genetic variance for fatty acid profile exists within each breeds. Moreover the variability for each component was demonstrated in the population. This first investigation showed that genetic improvement of the nutritional quality of milk fat, therefore on the fatty acid profile, is possible and researcher or development dairy selection progress is justified. [less ▲]

Detailed reference viewed: 67 (14 ULg)
Full Text
See detailDeep Impact at ESO Telescopes
Kaufl, Hans-Ullrich; Ageorges, Nancy; Bagnulo, Stefano et al

in The Messenger (2005), 121

This article is a first summary of the observations done with ESO telescopes and instrumentation in the context of NASA's Deep Impact (DI) space mission. The ESO observers were part of an extremely active ... [more ▼]

This article is a first summary of the observations done with ESO telescopes and instrumentation in the context of NASA's Deep Impact (DI) space mission. The ESO observers were part of an extremely active, communicative and thus successful worldwide network of observers. Through this network all information was freely exchanged and highlights are reported here as well. [less ▲]

Detailed reference viewed: 18 (2 ULg)