HE Condorcet
https://luck.synhera.be/handle/123456789/38
2024-03-28T00:15:21ZNumerical Modelling of the Heat Source and the Thermal Response of an Additively Manufactured Composite during an Active Thermographic Inspection
https://luck.synhera.be/handle/123456789/2597
Numerical Modelling of the Heat Source and the Thermal Response of an Additively Manufactured Composite during an Active Thermographic Inspection
Notebaert, Arnaud; Quinten, Julien; Moonens, Marc; Oldez, Vedi; Barros, Camila; Cunha, Sebastião Simões Jr.; DEMARBAIX, Anthonin
Abstract : "This paper deals with the numerical modelling of non-destructive testing of composite parts using active thermography. This method has emerged as a new approach for performing non-destructive testing (NDT) on continuous carbon fibre reinforced thermoplastic polymer (CCFRTP) components, particularly in view of detecting porosity or delamination. In this context, our numerical model has been developed around references containing internal defects of various shapes and sizes. The first novelty lies in the fact that the heat source used in the experimental setup is modelled exhaustively to accurately model the radiation emitted by the lamp, as well as the convection and conduction around the bulb. A second novelty concerns the modelling of the CCFRTP making up the benchmark used. Indeed, its thermal properties vary as a function of the sample temperature. Therefore, the actual thermal properties have been experimentally measured and were later used in our model. The latter then captures the material dependency on temperature. The results obtained by our model proved to be in close agreement with the experimental results on real reference points, paving the way for future use of the model to optimise experimental configurations and, in particular, the heating parameters."
2023-12-19T00:00:00ZEcological, morpho‑agronomical, and bromatological assessment of sorghum ecotypes in Northern Morocco
https://luck.synhera.be/handle/123456789/2025
Ecological, morpho‑agronomical, and bromatological assessment of sorghum ecotypes in Northern Morocco
Boukrouh, Soumaya; Noutfia, Ali; Moula, Nassim; Avril, Claire; LOUVIEAUX, Julien; Hornick, Jean-Luc; Cabaraux, Jean-François; Chentouf, Mouad
"Sorghum Bicolor is a cereal used for grains as feed and food, mainly cultivated in dry areas. To study the possibilities of increasing its cultivation for feed purposes, ecological, morpho-agronomical, and bromatological characterization of some local ecotypes was conducted as the first steps toward selecting better cultivars. Indeed, twenty-one ecotypes were collected from farms in Northern Morocco in 2018. The edapho-climatic parameters of the collection sites were evaluated. The ecotypes were cultivated in 2019 in an experimental field with a randomized complete block design with three replicates. At the maturity stage, plants were evaluated for agro-morphological parameters, and grains and straw (leaves and stems) were harvested and analyzed. The results indicated significant variations between ecotypes for almost all parameters and an interesting grain yield of 3.5 T/ha with a 176% yield variation."
Extrait de l'abstract
2023-09-20T00:00:00ZEcological, morpho-agronomical, and nutritional characteristics of Sulla flexuosa (L.) Medik. ecotypes
https://luck.synhera.be/handle/123456789/2024
Ecological, morpho-agronomical, and nutritional characteristics of Sulla flexuosa (L.) Medik. ecotypes
Boukrouh, Soumaya; Noutfia, Ali; Moula, Nassim; Avril, Claire; LOUVIEAUX, Julien; Hornick, Jean-Luc; Chentouf, Mouad; Cabaraux, Jean-François
"The present work was part of assessing wild genetic plant resources of forage interest in Northern Morocco and aimed to study the agro-morphology and nutritional value of Sulla fexuosa (L.) Medik. (Hedysarum fexuosum L.) ecotypes. The seeds of twenty-one wild S. fexuosa (L.) Medik. ecotypes were collected from 21 sites. The edaphic and climatic characteristics of the collection sites were studied and testifed to the remarkable adaptability of S. fexuosa (L.) Medik. These 21 ecotypes were cultivated in three complete randomized blocks design for two consecutive years. Statistical analysis showed substantial variability between the collected ecotypes. Principal component analysis and heatmap analysis allowed to distinguish four groups of ecotypes mainly based on nutritional parameters (fber content and digestibility), forage production (dry matter yield, number of leaves per plant, and total number of branches), and reproduction (number of inforescences per plant and, weight of thousand seeds and seeds per plant). Furthermore, the present study pointed out the value of ecotype 1, which was dual purpose with its high productivity, nutritional value, and reproductive parameters. Ecotype 4 was also highlighted as having late fowering but intermediate productivity, which can be used mainly for haymaking as the drying period could coincide with the last rainfall in the region."
Abstract de l'article
2023-08-16T00:00:00ZQue nous apprend cette 1ère mesure de l’activité biologique des sols ?
https://luck.synhera.be/handle/123456789/2023
Que nous apprend cette 1ère mesure de l’activité biologique des sols ?
LOUVIEAUX, Julien
"Évaluer la fertilité des sols n'est pas trivial. Très souvent, on résume cela à une série de mesures physico-chimiques telles que le pH, la granulométrie (texture), la richesse en éléments nutritifs (P, K, etc.) ou le statut organique (teneur en carbone total). Cette approche a ses avantages car elle se base sur des procédures éprouvées et bien souvent standardisées, relativement rapides et stables dans le temps, disposant de valeurs de références permettant une interprétation."
Chapeau de l'article
2023-06-22T00:00:00Z