17 research outputs found
Utilização de sal mineral rico em molibdênio na prevenção da intoxicação cúprica acumulativa em ovinos - microminerais hepáticos
Níveis de cloro da ração sobre parâmetros sanguíneos e ósseos de codornas italianas destinadas à produção de carne
Níveis nutricionais de fósforo disponível para aves de corte ISA Label criadas em semiconfinamento
Use of erythrocyte copper:zinc superoxide dismutase activity and hair or fleece copper concentrations in the diagnosis of hypocuprosis in ruminants
Anomalous Heating and Plasmoid Formation in a Driven Magnetic Reconnection Experiment
International audienceWe present a detailed study of magnetic reconnection in a quasi-two-dimensional pulsed-power driven laboratory experiment. Oppositely directed magnetic fields (B=3 T), advected by supersonic, sub-Alfvénic carbon plasma flows (Vin=50 km/s), are brought together and mutually annihilate inside a thin current layer (δ=0.6 mm). Temporally and spatially resolved optical diagnostics, including interferometry, Faraday rotation imaging, and Thomson scattering, allow us to determine the structure and dynamics of this layer, the nature of the inflows and outflows, and the detailed energy partition during the reconnection process. We measure high electron and ion temperatures (Te=100 eV, Ti=600 eV), far in excess of what can be attributed to classical (Spitzer) resistive and viscous dissipation. We observe the repeated formation and ejection of plasmoids, consistent with the predictions from semicollisional plasmoid theory