Functional architecture and specifications for Tolerancing Data and Knowledge Management

Part 1: Knowledge ManagementInternational audienceThe paper deals with the Computer-Aided Tolerancing and Product Data Management. It is especially focus on data and knowledge management system to support and improve the tolerancing tasks in product development process. The first part of the paper introduces an overview about the recent developments related to tolerancing supports and data management systems. Based on a literature survey and industrial issues, the second part proposes a functional architecture and specifications of the data and knowledge manage-ment system addressing the numerous needs clarified by tolerancing experts

Les empreintes de main dans l’art pariétal : possibilités et limites d’interprétations mises en relief par l’anthropologie médico-légale

CD p. 1197-1206International audienc

Les empreintes de main dans l’art pariétal : possibilités et limites d’interprétations mises en relief par l’anthropologie médico-légale

CD p. 1197-1206International audienc

Unexpected Heterocyclic Products from Cycloaddition Reactions of Nonsymmetrical Allenyl Aldoketazines with Substituted Alkynes

International audienc

Combined intra-intermolecular criss-cross cycloaddition reactions leading to perfluoroalkylated fused tricyclic nitrogen heterocycles

International audiencePerfluoroalkylated hydrazones 1a–ewere preparedfrom diethyl hydrazinophosphate andwere engaged in the reaction with 3-substitutedhomoallenyl aldehydes according to Zwierzak’smethod. The resulting non-symmetrical perfluoroalkyl-derived azines reacted in combined intra-intermolecular criss-cross cycloaddition with phenyl isocyanate, phenyl isothiocyanate and dimethyl acetylenedicarboxylate producing fused tricyclic heterocycles. Besides, the thermal cyclization of perfluoroalkylated non- symmetrical azines, without added dipolarophile, was carried out providing fused bicyclic systems