Etude parametrique et optimisation d'un processus de combustion de charges organiques confinees dans une paroi poreuse

National audienceL'objectif de ce travail est d'etudier la degradation thermique d'une charge organique (melange de plastiques) contenue dans une paroi poreuse (tissu en fibre de verre). Nous souhaitons determiner les conditions permettant d'obtenir un debit constant de gaz et de minimiser la production de suies. Les principaux plastiques etudies dans cette etude sont le polyethylene (PE), le polyurethane (PUR), polychlorure de vinyle (PVC) et le neoprene

Different combustion modes and flame shapes in massive loads of polyethylene revealed by macro-thermogravimetry

International audienc

Modeling the Rate of Batch-Mode Thermal Degradation of Polyethylene Suspended in an Oven

International audienc

Design, Calibration and Testing of a New Macro-Thermogravimetric Analyzer

ACLInternational audienc

Implications of spatial genetic patterns for conserving African leopards

The leopard (Panthera pardus) is heavily persecuted in areas where it predates livestock and threatens human well-being. Attempts to resolve human–leopard conflict typically involve translocating problem animals; however, these interventions are rarely informed by genetic studies and can unintentionally compromise the natural spatial genetic structure and diversity, and possibly the long-term persistence, of the species. No significant genetic discontinuities were definable within the southern African leopard population. Analysis of fine-scale genetic data derived from mitochondrial and nuclear DNA revealed that the primary natural process shaping the spatial genetic structure of the species is isolation-by-distance (IBD). The effective gene dispersal (s) index can inform leopard translocations and is estimated to be 82 km for some South African leopards. The importance of adopting an evidence-based strategy is discussed for supporting the integration of genetic data, spatial planning and social learning institutions so as to promote collaboration between land managers, government agency staff and researchers