6,358 research outputs found
Appendix 4 : Relocation : What Matters ? Competition or/and Co-ordination.
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A laboratory method to evaluate Pseudocercospora musae (teleomorph: Mycosphaerella musicola) sensitivity to fungicides
Introduction. Le protocole vise à détecter et évaluer des variations de sensibilité dans des populations de Pseudocercospora musae (téléomorphe : Mycosphaerella musicola) vis à vis de fongicides qui sont utilisés pour contrÎler la maladie de Sigatoka chez le bananier. Le principe, les principaux avantages, le matériel végétal de départ, le temps nécessaire et les résultats attendus de la méthode sont présentés. Matériel et méthodes. Le matériel de laboratoire nécessaire et le détail des sept étapes du protocole réalisées sur quatre jours d'expérimentation sont décrits. Résultats. Le protocole aboutit à l'observation de la germination de conidies (aspect ou croissance du tube germinatif) de P. musae selon la sensibilité aux fongicides. (Résumé d'auteur
Hugues Faure, 1928â2003: The unique adventure of his life
Hugues Faure was not only one of the greatest pioneers of the study of the Quaternary and a man of outstanding personality, with the highest integrity, an uncommon strength of character, with a lot of kindness and generosity, but also a man who made his dreams, conceived in the inhospitable solitudes of the Sahara, come true. He was very young when he chose his way: barely 10 years old and his passion for geology already filled his life. It was in Africa, a continent he discovered at his earliest years as a field-geologist, and deeply loved, that he nursed and matured many of his most stimulating ideas on Quaternary environmental change. It was in the desert that he built up his exceptional personality and found his truth, which finally allowed him to accomplish his destiny. Hugues Faure was born in Paris, on the 11th March 1928, the son of a jeweller. The comfortable circumstances of the family were darkened by his father's death when Hugues was only 3 years old. As a consequence of this sad event, Hugues used to spend in England most of his school holidays far from his family. Then during World War 2, he lived the exodus on the roads of France, cycling under the bombs, with his dog in his basket. He was 12 years old, and it was the end of his youth. His passion for earth sciences had began before the age of ten, when he started collecting flint and fossils from the chalk of the Paris Basin, and decided to stop playing piano, so as to devote himself to Geology. Hugues graduated in Mathematics from LycĂ©e Jacques-Decour in 1948, and in Sciences from the FacultĂ© des Sciences de Paris Sorbonne in 1949. On the same year he enrolled as a geologist of the âFrance of Overseasâ, then as a hydrogeologist at the French Geological Survey (BRGM) (1949â1963), so as to work in Africa
A new approach of high speed cutting modelling: SPH method
The purpose of this study is to introduce a new approach of high speed cutting numerical modelling. A lagrangian Smoothed Particle Hydrodynamics (SPH) based model is carried out using the Ls-Dyna software. SPH is a meshless method, thus large material distortions that occur in the cutting problem are easily managed and SPH contact control permits a ânaturalâ workpiece/chip separation. Estimated chip morphology and cutting forces are compared to machining dedicated code results and experimental data. The developed SPH model proved its ability to account for continuous and shear localized chip formation and also correctly estimates the cutting forces, as illustrated in some orthogonal cutting examples
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