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Genetic patterns recognition in crop species using self-organizing map: the example of the heterozygous autotetraploid potato (Solanum tuberosum L.)
05 février 2020, HE CondorcetCARAHArticle scientifiqueWe tested the ability of the self-organizing map (SOM), a type of artificial neural network, in revealing genetic patterns within the autotetraploid potato (Solanum tuberosum L.). A total of 591 potato varieties, originating from various main European breeder collections and released into different market segments between 1815 and 2015, were examined using a set of 21 informative microsatellite markers. -
Thorpe tube and oxygen flow restrictor : what's flow accuracy ?
10 février 2020, HE CondorcetArticle scientifiqueOxygen gas flowmeters (OGF) are used to regulate the oxygen flow in acute and chronic care. In hospitals, Thorpe tubes (TT) are the classical systems most used for delivering oxygen. In recent years, the oxygen flow restrictor (OFR) has appeared. These devices use a series of calibrated openings in a disk that can be adjusted to deliver different flow rates. These devices have a reputation for ... -
Cannabidiol in sport : Ergogenic or else ?
20 mars 2020, HE CondorcetArticle scientifiqueIn the sports domain, cannabis is prohibited by the World Anti-Doping Agency (WADA) across all sports in competition since 2004. The few studies on physical exercise and cannabis focused on the main compound i.e. Δ9-tetrahydrocannabinol. Cannabidiol (CBD) is another well-known phytocannabinoid present in dried or heated preparations of cannabis. Unlike Δ9-tetrahydrocannabinol, CBD is non-intoxicating ... -
Influence of Conventional Machining on Chemical Finishing of Ti6Al4V Electron Beam Melting Parts
26 avril 2020, Spitaels, Laurent; Ducobu, François; DEMARBAIX, Anthonin
; Rivière-Lorphèvre, Edouard; Dehombreux, Pierre, HE Condorcet
Acte de conférence ou de colloque"Additive manufacturing is feeding great hopes for future developments in fields such as aeronautical, biomedical and rapid tooling industrssssies. However, limitations are still restricting its use to make prototypes and hampering mass production. In the case of titanium alloy printing (e.g. Ti6Al4V) with the EBM (Electron Beam Melting) process, the major obstacle to use parts directly after printing ... -
Prediction of local sintering in laser beam machining of green Y-TZP ceramic
20 mai 2020, Ducobu, François; Rivière-Lorphèvre, Edouard; DEMARBAIX, Anthonin; Lauwers, Berth, HE Condorcet
Article scientifiqueAbstract : "Laser beam machining of Y-TZP engineering ceramic material is carried out in green stage to increase the material removal rate. The generation of hot spots may cause local sintering of the ceramic material leading to a decrease of the mechanical properties of the final sintered component. This paper presents the implementation of alternative laser beam paths to reduce the hot spots ... -
Green Ceramic Machining: Influence of the Cutting Speed and the Binder Percentage on the Y-TZP Behavior
21 mai 2020, DEMARBAIX, Anthonin; Ducobu, François; Preux, Nicolas; Petit, Fabrice; Rivière-Lorphèvre, Edouard, HE Condorcet
Article scientifiqueAbstract : "The demand for inert bioceramics is always increasing in the dental field. Yttrium oxide tetragonal zirconia polycrystals (Y-TZP) are oxide ceramics which are currently used because of their interesting mechanical properties due to a toughening transformation. Industrially speaking, machining of the ceramic before sintering (green body) is very common because it allows a better productivity ... -
A new manufacturing chain for ceramic shaping: sequential combination of milling and laser machining in green ceramic
juin 2020, DEMARBAIX, Anthonin; Ducobu, François; Petit, François; Rivière-Lorphèvre, Edouard, HE Condorcet
Acte de conférence ou de colloqueContribution to euspen’s 20th International Conference & Exhibition (Geneva, CH, June 2020) Abstract : "The ceramic microcomponents have very interesting mechanical and thermal properties in an extreme environment such as a high temperature, a corrosive environment, etc. Unfortunately, the principal limitation of ceramic material usage is its shaping because of the brittlness of the material. ... -
EEG dynamics and neural generators of psychological flow during one tightrope performance
24 juillet 2020, HE CondorcetArticle scientifiquePsychological “flow” emerges from a goal requiring action, and a match between skills and challenge. Using high-density electroencephalographic (EEG) recording, we quantified the neural generators characterizing psychological “flow” compared to a mindful “stress” state during a professional tightrope performance. Applying swLORETA based on self-reported mental states revealed the right superior ... -
EEG-based brain-computer interface for alpha speed control of a small robot using the MUSE headband
28 septembre 2020, HE CondorcetActe de conférence ou de colloqueNon-invasive BMI applications are increasingly used in different contexts ranging from industrial, clinical and gaming. After having tested the difference between a classical EEG recorder with electroconductive gel (ANT system) and the MUSE EEG headband, we studied the BCI performances of the later during the control of a small robot. We demonstrated that the participants were able to successfully ... -
Root Morphological Traits of Seedlings Are Predictors of Seed Yield and Quality in Winter Oilseed Rape Hybrid Cultivars
15 octobre 2020, HE CondorcetCARAHArticle scientifiqueThe root system is responsible for soil resources acquisition. Hence, optimizing crop root characteristics has considerable implications for agricultural production. This study evaluated a panel of twenty-eight European modern cultivars of oilseed rape (Brassica napus L.) cultivated in laboratory and field environments. Root morphology was screened using a high-throughput hydroponic growth system ... -
Neural generators involved in visual cue processing in children with attention-deficit/hyperactivity disorder (ADHD)
10 novembre 2020, HE CondorcetArticle scientifiqueEvent-related potentials (ERP) studies report alterations in the ongoing visuo-attentional processes in children with attention deficit/hyperactivity disorder (ADHD). We hypothesized that the neural generators progressively recruited after a cue stimulus imply executive-related areas well before engagement in executive processing in children with ADHD compared to typically developed children (TDC) -
Experimental investigation on green ceramic machining with nanosecond laser source
03 décembre 2020, DEMARBAIX, Anthonin; Ducobu, François; Juste, Enrique; Petit, Fabrice; Duterte, Charles; Rivière-Lorphèvre, Edouard, HE Condorcet
Article scientifiqueAbstract : "Yttrium oxide tetragonal zirconia polycrystals (Y-TZP) is an inert bioceramic used for many bio-implantable applications that request a high accuracy which is difficult to achieve with the current technologies. Laser machining of hard ceramic is difficult because the interaction of the laser beam with the material can lead to microcracks and surface modifications of the microstructure. ... -
Finite element modelling of the Taylor impact test in 3D with the Coupled Eulerian-Lagrangian method
Acte de conférence ou de colloqueContribution to ESAFORM2021. Abstract : "When modelling a cutting operation, the constitutive model of the machined material is one of the key parameters to obtain accurate and realistic results. Up to now, the Johnson-Cook model is still the most used, even if an increasing number of models, such as the Hyperbolic TANgent (TANH) model, were introduced last years to overcome its limitations and ... -
Bigraphisme et difficultés d’écriture : étude de l’influence du bilinguisme-bigraphisme arabe-français dans une école du nord de la France
2021, HE CondorcetTFEDans une ville cosmopolite et multiculturelle du nord de la France, une partie de la population est capable d’écrire en arabe, pour des raisons socioculturelles. Un double apprentissage est alors présent chez les enfants, qui écrivent dans deux systèmes graphiques (arabe et latin). Les différences présentes entre ces deux alphabets pourraient entraîner des interférences dans les productions écrites ... -
The CDIO approach in a FabLab activity for engineering education promotion
Acte de conférence ou de colloqueAbstract : "The number of FabLabs has been steadily increasing over the last few years. Their main objectives are to sensitize its public on Science, Technology, Engineering, and Math (STEM) education through the digital manufacturing chain of an object and to allow the large public to make their own objects. Through, the increasing popularization of these advanced technologies, it becomes more ... -
Plant Microbiota Beyond Farming Practices: A Review
29 mars 2021, HE CondorcetArticle scientifique"Being able to engineer microbial communities in ways that benefit crop health and growth will help decrease the number of chemical inputs required. Against this background, this review explores the impacts of agricultural practices on soil- and plant-associated microbiomes, focusing on plant growth-promoting microorganisms from a metagenomic perspective." Extrait de l'abstract -
La dégradabilité des plastiques en culture de maïs : sous l'effet des micro-organismes et de la lumière, avec quels résultats et améliorations possibles ?
22 avril 2021, HE CondorcetCARAHArticle scientifique[Disponible sur le site du sillon belge]La culture de maïs sous plastique soulève de nombreuses interrogations, notamment en matière d’environnement. Pour éclaircir cette problématique, le Carah a passé au crible différents types de plastique et a étudié plus précisément leur dégradabilité. Ces essais en laboratoire ont ensuite été complétés par une évaluation au champ, sous la houlette du Cipf. En ... -
Quel comportement de développement adoptent les rameaux de la vigne après une gelée printanière ?
29 avril 2021, HE CondorcetCARAHArticle scientifiqueL'épisode gélif que nous avons connu en ce début avril nous rappelle combien la météo peut impacter les cultures, notamment fruitières et viticoles. Un tel phénomène s'est également produit l'année dernière, en mai, alors que les vignes se trouvaient à un stade particulièrement sensible de leur développement. À cette occasion, le Carah a observé et analysé comment les différents cépages de son ... -
Development of a novel benchmark artifact for Additive Manufacturing processes
10 juin 2021, Spitaels, Laurent; Rivière-Lorphèvre, Edouard; DEMARBAIX, Anthonin; Ducobu, François, HE Condorcet
Acte de conférence ou de colloque" This article aims to make a review of the existing benchmark artifacts and to summarize the main requirements chosen by authors. From this state of the art, a new benchmark artifact is proposed by adapting an existing one to fulfil its missing characteristics. Measurements possibilities in terms of dimensions are enumerated and organized using ISO 286 dimensional intervals as presented in the ... -
Effects of Chemopreventive Natural Compounds on the Accuracy of 8-oxo-7,8-dihydro-2′-deoxyguanosine Translesion Synthesis
08 juillet 2021, HE CondorcetArticle scientifiqueTranslesion synthesis is a DNA damage tolerance mechanism that relies on a series of specialized DNA polymerases able to bypass a lesion on a DNA template strand during replication or post-repair synthesis. Specialized translesion synthesis DNA polymerases pursue replication by inserting a base opposite to this lesion, correctly or incorrectly depending on the lesion nature, involved DNA polymerase(s), ...