La régulation par l'observation

Conference (2013, May)

Conception et calcul des éléments de machine

Book published by DEBONGNIE(Jean-François) - Dépôt légal D/2013/0480/7 (2013)

Texte du cours de conception mécanique donné par l'auteur aux étudiants ingénieur mécanicien de l'Université de Liège.

Epreuves isocinétiques de résistance à la fatigue

in Lettre de Médecine Physique et de Réadaptation (2013)

Characteristics of patients with pituitary gigantism : results of an international study

in Endocrine abstracts - 15th European Congress of Endocrinology (2013, May)

Receptor expression in craniopharyngiomas causing tumor growth in pregnancy : case report and review of the literature

in Endocrine Abstracts - 15th European Congress of Endocrinology (2013, May)

A micro-meso-model of intra-laminar fracture in fi ber-reinforced composites based on a Discontinuous Galerkin/Cohesive Zone Method

in Engineering Fracture Mechanics (2013), 104

The recently developed hybrid discontinuous Galerkin/extrinsic cohesive law framework is extended to the study of intra{laminar fracture of composite materials. Toward this end, micro-volumes of di erent ... [more ▼]

The recently developed hybrid discontinuous Galerkin/extrinsic cohesive law framework is extended to the study of intra{laminar fracture of composite materials. Toward this end, micro-volumes of di erent sizes are studied. The method captures the debonding process, which is herein proposed to be assimilated to a damaging process, before the strain softening onset, and the density of dissipated energy resulting from the damage (debonding) remains the same for the di erent studied cell sizes. Finally, during the strain softening phase a micro{crack initiates and propagates in agreement with experimental observations. We thus extract a resulting mesoscale cohesive law, which is independent on the cell sizes, using literature methods. [less ▲]

Selection of a spatial hypothesis in geographic profiling using graph theory

Poster (2013, May)

Geographic profiling is based on the spatial hypothesis of a distance decay effect around the offender’s anchor point and can be very useful for delineating prior search areas for individual ... [more ▼]

Geographic profiling is based on the spatial hypothesis of a distance decay effect around the offender’s anchor point and can be very useful for delineating prior search areas for individual investigations such as DNA testing. However, this spatial hypothesis fails to model a significant part of Belgian serial sexual offenders. In previous study, a complementary hypothesis, the minimisation of the variance (MOV) for the distances between the offender’s anchor point and the crime site, exploiting recent literature observation, is proposed to model unexplained behaviours. A systematic comparison of the distance decay and the MOV hypotheses show that their overall capacities to provide an effective geoprofile are similar, but their performances may differ, depending on the geometric pattern of crimes. Here, we use graph theory to describe the favourable patterns for the MOV, in order to select which spatial hypothesis is best suited for a new investigation. While star graphs represent patterns for which both hypotheses could be validated, wheels with preferred directions are only explained by the MOV hypothesis. Real patterns on the road network are a-posteriori evaluated thanks to the generation of the shortest path between the best solution of the MOV and all the crime locations thanks to the Dijkstra algorithm. [less ▲]

Genotypic and phenotypic characterisation of methicillin-resistant Staphylococcus aureus (MRSA) isolated from milk of bovine mastitis

in Letters in Applied Microbiology (2013)

Fertilization Effects on the Chemical Composition and In Vitro Organic Matter Digestibility of Semi-natural Meadows as Predicted by NIR Spectrometry

in Notulae Botanicae Horti Agrobotanici Cluj-Napoca (2013), 41(1), 42-48

Management of livestock grazing in highly-productive mountain meadows is an important aspect for the economic viability and the environmental impact of a grassland-based farm. The main aim of this study ... [more ▼]

Management of livestock grazing in highly-productive mountain meadows is an important aspect for the economic viability and the environmental impact of a grassland-based farm. The main aim of this study was to build near infrared models to determine the chemical composition and in vitro organic matter digestibility of Romanian meadow forages. The treatments were organic and mineral fertilizer combinations, and forage samples were obtained from three fertilization experiments conducted in the Apuseni Mountains; these samples were analysed using classical and NIR methods. The samples were scanned in the NIR wavelength band. The CRA-W Gembloux ‘local’ calibration models were validated with Romanian meadow forages and then used in order to predict the forage quality of samples. A second objective of the study was to determine the effects of fertilization on forage quality. The results showed a decrease in crude protein content from the NPK treatment (150:75:75), which can be explained by a reduction of Fabaceae plants with this treatment from 17.25% of the populations in the control (semi-natural meadow not fertilized) to 6.25% in the fertilized plots. The decrease in protein content and in vitro organic matter digestibility was related to a reduced Fabaceae presence. Our recommendation is to use mineral fertilization with NPK doses less than 100:50:50 to improve meadow productivity; meanwhile organic fertilization can also be used to complement and maintain biodiversity and forage quality. [less ▲]

Women in the Top Management of Belgian Family Business : Obstacles, Contributions and Advantages

Poster (2013, May)