The spatial footprint of the non-ferrous metal industry in Lubumbashi

in Tropicultura (in press)

In the south-eastern part of the Katanga Province (Democratic Republic of the Congo), high concentrations of copper and cobalt are found in the soils of the well-known “Copper Belt”. Due to the dominant ... [more ▼]

In the south-eastern part of the Katanga Province (Democratic Republic of the Congo), high concentrations of copper and cobalt are found in the soils of the well-known “Copper Belt”. Due to the dominant south-eastern winds, the metallurgic industry in Lubumbashi has been the source of spatially concentrated atmospheric deposits of non-ferrous metal particles and associated substances in a cone-shaped zone, situated north-west of the metal processing site. The existence of this zone has been evidenced using two different techniques: firstly, by means of landscape metric comparisons of the vegetation and bare soil patterns in two study areas, one inside the pollution cone and one outside; secondly, by means of the theory on city perception developed by Kevin Lynch. Higher fragmentation and lower vegetation presence were observed inside the pollution cone, reflecting the negative impact of atmospheric deposits. Those differences were higher for sites closer to the emission source. Lynch’s approach outlined the negative impact of diverse industrial plants on the perception by the local population. Six pollution districts and several contaminated paths, limits, nodes and polluting landmarks were identified. Citizens even recognize them as part of the collective image of the city. [less ▲]

Zur Stellung des Deutschen in Belgien

in Rundbrief. Mitteilungsblatt des BGDV (in press), 29

Die Geheimnisse der Schrift: Heinrich von Kleists Poetik der Verschlossenheit und das Prinzip der Verschiebung in seinen Texten

in Brittnacher, Hans Richard; Von der Lühe, Irmela (Eds.) Risiko – Experiment – Selbstentwurf. Kleists radikale Poetik (in press)

Behavior of Deep Beams with Large Headed Bars

in ACI Structural Journal (in press)

While anchor heads are particularly useful in the case of large bars which require significant development lengths, the ACI code provides design guidance for bars #11 or smaller. This paper presents a ... [more ▼]

While anchor heads are particularly useful in the case of large bars which require significant development lengths, the ACI code provides design guidance for bars #11 or smaller. This paper presents a test of a large deep beam reinforced with a single #18 headed bar. The behavior of the beam is evaluated in comparison to the behavior of a specimen with more conventional reinforcement of 6#8 headed bars, and to the behavior of a specimen with lap-spliced anchor hooks. Despite the extreme detailing of the specimen with a single #18 bar, the beam had the same strength as the specimen with 6#8 bars. The compressive stress in front of the anchor head reached about 1.5 times the compressive strength of the concrete and the stress in the #18 bar reached about 414 MPa (60 ksi) before the beam failed in shear along a diagonal crack away from the anchorage zone. Shear strength calculations according to Appendix A of the ACI code showed that the current strut-and-tie provisions can overestimate the shear strength of deep beams by as much as 23%. [less ▲]

Levallois et Gravettien

in Praehistoria (in press)

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein ... [more ▼]

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein du Gravettien touchent autant les processus de symbolisation dans l’art et les sépultures. Elles affectent différents substrats eurasiatiques, plutôt septentrionaux, comme mis en réserve dès les Néandertaliens. [less ▲]

Per un non cauto omaggio a Fogazzaro : Nel centenario della morte (1911-2011)

in Fedele ed altri racconti. Racconti brevi. Idillii spezzati (in press)

Mircea Eliade et la pensée mythique au Paléolithique supérieur

in Chirica, Vasile (Ed.) Vivre et mourir dans la Préhistoire et la Protohistoire de l'Europe (in press)

Avec le Paléolithique supérieur, de nombreuses données éclairent les fonctions symboliques. Au-delà des seules activités techniques, il est possible de restituer certains éléments d’une pensée mythique ... [more ▼]

Avec le Paléolithique supérieur, de nombreuses données éclairent les fonctions symboliques. Au-delà des seules activités techniques, il est possible de restituer certains éléments d’une pensée mythique, analogue à celle décrite par les ethnologues ou les historiens des religions. Leur étude ne permet pas de retrouver les mythes racontés, mais bien d’envisager lucidement leur nature et leur rôle fondamental pour le fonctionnement des sociétés paléolithiques. Dans les années 1990, la découverte de la grotte Chauvet a remis en cause l’évolution linéaire de l’art pariétal établie par André Leroi-Gourhan. La découverte récente de peintures très similaires en Roumanie, dans la grotte de Coliboaia, permet de compléter l’approche des phases initiales de cet art. Les similitudes entretenues entre les images de ces deux grottes poussent à retourner vers la notion de mythe. [less ▲]

Effects of Processing on the Compositions and Physicochemical Properties of Fibre Concentrate from Cooked Fruit Pomaces

in Food and Bioprocess Technology (in press)

This study examined the influence of applied tech- nologies namely desugaring, grinding, and bleaching on the compositions (cellulose, hemicelluloses, lignins, and pectins), physicochemical properties ... [more ▼]

This study examined the influence of applied tech- nologies namely desugaring, grinding, and bleaching on the compositions (cellulose, hemicelluloses, lignins, and pectins), physicochemical properties (water-holding capacity (WHC), swelling capacity (SWC), oil-holding capacity (OHC)) and the colour of dietary fibre (DF) during the production of fibre concentrates from unusual cooked apple and pear pomaces. Thermogravimetric analysis (TGA) and optical microscopy were also performed to monitor process-induced modifica- tion. All the processing conditions affected the compositions and physicochemical properties of DF. The bleaching treat- ment induced the greatest changes on DF producing yellow cellulose-rich fibre concentrates with improved WHC from 3.2 to 10.0 g/g and improved SWC from 4.0 to 8.8 ml/g. Otherwise, reduction of the particle size influenced hydration properties and colours of DF. WHC and SWC tended to increase with the particle size whereas smaller granulometric size increased the lightness of fibres. Desugaring increased the DF content in both pomaces by 1.2-fold with slight modifica- tion of apple insoluble dietary fibre ratio. Fibre concentrates had improved WHC and SWC up to 1.4-fold. All processes had no significant effect (p < 0.05) on OHC of DF except with ultrafine apple fibre concentrates. Results showed that pro- cessing had overall positive effects on DF contents and hy- dration properties of pomaces from cooked fruits. Bleached fibre concentrates from apple pomace had the highest WHC (10.0 g/g) whereas that of pear had the highest fibre content (89.9 %). Fibres from cooked fruit pomaces may therefore be used as textural ingredients or functional foods. [less ▲]

La réception par le juge d’arguments extra-juridiques

in Chassagnard-Pinet, Sandrine (Ed.) Actes du colloque Droit, arts et sciences humaines et sociales: dépasser les frontières, Lille 19 et 20 mai 2011 (in press)

Les industries à pointes foliacées du Paléolithique supérieur ancien dans le Nord-Ouest de l’Europe : le Lincombien-Ranisien-Jerzmanowicien

in Bodu, Pierre; Chehmana, Lucie; Klaric, Laurent (Eds.) et al Le Paléolithique supérieur ancien de l’Europe du Nord-Ouest. Actes du colloque de Sens (15-18 avril 2009) (in press)