Parcourir par type de document "Article scientifique"
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2017, année internationale du tourisme durable. En Wallonie aussi ?
juin 2016, HE Robert SchumanArticle scientifiqueDepuis près de 20 ans, on observe, chez les touristes comme chez les opérateurs du secteur touristique, une prise de conscience de l’importance des enjeux de la durabilité du tourisme. La vision que l’on en a reste cependant floue. Tentons d’y voir plus clair. -
Absolute cross sections and kinetic energy release distributions for electron impact ionization and dissociation of CD+
2007, HENALLUXArticle scientifiqueAbsolute cross sections for electron impact dissociative excitation and ionization of CD+ leading to the formation of ionic products (D+, C+, C2+ and C3+) are reported in the energy range from their respective thresholds to 2.5 keV. Around the maximum, cross sections are found to be (10.5 ± 1.0) × 10−17 cm2, (20.6 ± 3.5) × 10−17 cm2, (1.20 ± 0.11) × 10−17 cm2 and (8.2 ± 1.5) × 10−20 cm2 for D+, C+, ... -
Absolute cross sections and kinetic energy release distributions for electron-impact dissociative excitation and ionization of NeD+
2008, HENALLUXArticle scientifiqueAbsolute cross sections for electron impact dissociative excitation and ionization of NeD+ leading to the formation of singly and multiply charged products (D+, Ne+, Ne2+ and Ne3+) are reported, in the energy range from their respective thresholds to 2.5 keV. The animated crossed-beams method is used. For singly charged fragments, absolute cross sections are obtained separately for dissociative ... -
Absolute cross sections and kinetic energy release distributions for electron-impact ionization and dissociation of CD+ 4
2008, HENALLUXArticle scientifiqueAbsolute cross sections for electron-impact dissociative excitation and ionization of CD+ 4 leading to formation of ionic products (CD2+ 4, CD+ 3, CD+ 2, CD+, C+, D+ 3, D+ 2, and D+) have been measured. The animated crossed-beams method is applied in the energy range from the reaction threshold up to 2.5 keV. Around 100 eV, the maximum cross sections are found to be (3.8±0.2) ×10-19 cm2, (10.8±1.5)× ... -
Absolute cross sections and kinetic energy release for doubly and triply charged fragments produced by electron impact on CO+
2006, HENALLUXArticle scientifiqueAbsolute cross sections for electron impact ionization of CO+ leading to the formation of doubly and triply charged products (CO2+, C2+ and O2+, C3+ and O3+) are reported in the energy range from their respective thresholds to 2500 eV. Around the maximum, cross section values are found to be (13.36 ± 0.56) × 10−18 cm2, (5.58 ± 0.55) × 10−18 cm2 and (1.37 ± 0.14) × 10−18 cm2 for CO2+, C2+ and O2+, ... -
Absolute cross-sections and kinetic energy release distributions for electron-impact dissociation of D3+
2009, HENALLUXArticle scientifiqueAbsolute cross-sections for electron-impact dissociation of D+3 leading to the formation of D+ and D+2 products have been measured by applying the animated electron-ion beam method in the energy range from the respective thresholds up to 2.5 keV. The maximum total cross-sections are observed to be (13.9 ± 1.1) × 10−17 cm2 and (8.2 ± 0.1) × 10−17 cm2 (around 50 eV) for D+ and for D+2 fragments, ... -
Absolute cross-sections and kinetic-energy-release distributions for electron-impact ionization and dissociation of CD +3
2009, HENALLUXArticle scientifiqueAbsolute cross-sections have been measured for electron-impact dissociative excitation and ionization of CD+3/(CH+3) leading to formation of singly-charged fragments (CD +2, CH+, C+, H +2 and D+). The animated crossed-beams method is applied in the energy range from the reaction threshold up to 2.5 keV. The maximum cross-sections are found to be (14.0±1.0)×10-17 cm2, (6.5± 0.7)×10-17 cm2, (3.3± ... -
Absolute cross-sections and kinetic-energy-release distributions for electron-impact ionization and dissociation of CD+ 2
2009, HENALLUXArticle scientifiqueAbsolute cross-sections have been measured for electron-impact dissociative excitation and ionization of CD +2 leading to formation of CD 2+2, CD+, C+, D +2 and D+. The animated crossed-beams method is applied in the energy range from the reaction threshold up to 2.5 keV. The maximum total cross-sections are found to be (1.2±0.1)×10-17 cm2, (6.1±0.7)×10-17 cm2, (6.4±0.7)×10-17 cm2, (26.3±3.8)×10-19 ... -
Access to paediatric palliative care in children and adolescents with complex chronic conditions: a retrospective hospital-based study in Brussels, Belgium
2019, HE Léonard de VinciArticle scientifiquePaediatric complex chronic conditions (CCCs) are life-limiting conditions requiring paediatric palliative care, which, in Belgium, is provided through paediatric liaison teams (PLTs). Like the number of children and adolescents with these conditions in Belgium, their referral to PLTs is unknown. Objectives: The aim of the study was to identify, over a 5-year period (2010–2014), the number of children ... -
Acclimatation de vitroplants de bananier (Musa sp.) en culture hydroponique : impact de différentes concentrations en cuivre sur la croissance des vitroplants
janvier 2013, HE CondorcetCARAHArticle scientifiqueLes contraintes dues au cuivre et les conséquences de son accumulation par les vitroplants de bananier pendant la phase d’acclimatation ont été étudiées en culture hydroponique. Des doses de 0-100-500-1000 ppm de cuivre, sous forme de CuSO4, ont été ajoutées au milieu nutritif en culture hydroponique. A 1000 ppm CuSO4, les résultats obtenus ont mis en évidence des concentrations en cuivre élevées ... -
Accompagner les difficultés de lecture de la 3e maternelle à la 2e primaire : freins et leviers perçus par les enseignants dans le cadre d'un dispositif de coenseignement visant à développer la différenciation.
07 septembre 2022, HE Léonard de VinciArticle scientifiqueDans l'objectif de réduire les inégalités scolaires, la Fédération Wallonie-Bruxelles a mis sur pied, de janvier 2019 à aout 2020, un projet pilote visant à développer la différenciation dans l'apprentissage initial de la lecture dans les classes de 3e maternelle, 1e et 2e primaire. Dans ce cadre, notre équipe a mis en œuvre, dans 45 écoles, un dispositif d'accompagnement au développement professionnel, ... -
Accuracy of Medical Oxygen Flowmeters: A Multicentric Field Study
août 2014, HE CondorcetArticle scientifiqueThe accuracy of 476 oxygen flowmeters was investigated using a thermal mass flowmeter in eight hospitals in France and Belgium. Different oxygen flow rates (2 to 15 l/min) were evaluated at the patient’s bed. When the sample was considered as a whole, the accuracy of delivered flow was acceptable but precision was poor. The variability of the delivered flow between devices was greater when a low ... -
Accuracy of oxygen flow delivered by compressed-gas cylinders in hospitals and prehospital emergency care
mars 2018, HE CondorcetArticle scientifiqueOxygen cylinders are widely used both in hospital and prehospital care. Excessive or inappropriate FIO2 may be critical for patients with hypercapnia or hypoxia. Moreover, over-oxygenation could be deleterious in ischemic disorders. Supplemental oxygen from oxygen cylinder should therefore be delivered accurately. The aim of this study was to assess the accuracy of oxygen flows for oxygen cylinder ... -
Acidophilic adaptation of family 11 endo-β-1, 4-xylanases: Modeling and mutational analysis
2004, AutreArticle scientifique13 (2004), p. 1209-1218 -
Acoustic coupling and directivity control
2020, HENALLUXArticle scientifiqueThis article deals with the kind of acoustic sources, how waves propagate and the criteria which allow to couple sources. It also explains why and how to control the directivity, as well as what is a bad directivity (with real examples). Designing such a product requires knowledge of mechanical manufacturing, electronics, acoustics, design, etc. There is not a “recipe” to design a professional ... -
Activity Recognition in Industrial Environment using Two Layers Learning
2021, HENALLUXArticle scientifiqueAction and activity recognition is essential in the world of cobots to ensure the best efficiency and a safety collaboration between a robot and the human-being. The approach of the article is the creation of a new activity dataset for an industrial context with cobots for recognition. We proposed to use LSTM (Long Short-Term Memory) to analyse and recognize the activities and we also proposed to ... -
An adapted sequence for dyslexic 6th primary graders and pupils with reading difficulties
28 juin 2023, HE Francisco FerrerArticle scientifiqueUn sistema educativo ideal debería fomentar una educación inclusiva para todos los alumnos con necesidades especiales y los niños con dislexia también forman parte de esta categoría. Los alumnos disléxicos parecen afectar a una gran parte de la población escolar de la Federación Valonia-Bruselas. Los niños con dislexia tienen una alta prevalencia dentro de la clase en comparación con los alumnos con ... -
Adaptive benchmarking design for additive manufacturing processes
17 mars 2022, Spitaels, Laurent; Rivière-Lorphèvre, Edouard; DEMARBAIX, Anthonin
; Ducobu, François, HE Condorcet
Article scientifique"Standards enabling the objective tolerancing and evaluation of dimensional and geometrical performances of additive manufacturing (AM) printers are still missing. The design, printing and measurements of geometrical benchmark test artefacts (GBTA) is the current solution proposed in literature. However, the current GBTA with fixed dimensions cannot cover most of the available printing area of ... -
Additively Manufactured Multifunctional Composite Parts with the Help of Coextrusion Continuous Carbon Fiber: Study of Feasibility to Print Self-Sensing without Doped Raw Material
25 août 2023, DEMARBAIX, Anthonin; Ochana, Imi; Levrie, Julien; Coutinho, Isaque; Cunha, Sebastião Simões Jr.; Moonens, Marc, HE Condorcet
Article scientifiqueAbstract ; "Nowadays, the additive manufacturing of multifunctional materials is booming. The fused deposition modeling (FDM) process is widely used thanks to the ease with which multimaterial parts can be printed. The main limitation of this process is the mechanical properties of the parts obtained. New continuous-fiber FDM printers significantly improve mechanical properties. Another limitation ... -
Adiabatic Invariant of Center-of-Mass Motion during Walking as a Dynamical Stability Constraint on Stride Interval Variability and Predictability
09 septembre 2022, HE Louvain en HainautArticle scientifiqueHuman walking exhibits properties of both stability and variability. On the one hand, the variability of the interval of time between heel strikes is autocorrelated, i.e., not randomly organized. On the other hand, walking is highly stereotyped and arguments from general mechanics suggest that the stability of gait can be assessed according to invariant properties. This study aims at proposing ...