TuneCore and Tidal to improve their services for their artists. Also in 2015, TuneCore expanded its presence in the UK and Australia announcing dedicated websites including localized currency and content for each region. It also introduced its YouTube Sound Recording service to collect revenue for artists when their sound recordings are used anywhere on YouTube. In September 2015, Tunecore stepped up its live event offerings, throwing LA's independent music community its first ever Indie Artist Forum, which focused on educating and fostering collaboration amongst aspiring professional musicians while engaging on a dialog around the ins and outs of the current landscape
Shrouded tidal turbine Shrouded tidal turbine The shrouded tidal turbine is an emerging tidal stream technology that has a turbine enclosed in a venturi shaped shroud or duct (ventuduct), producing a sub atmosphere of low pressure behind the turbine. The venturi shrouded turbine is not subject to the Betz limit and allows the turbine to operate at higher efficiencies than the turbine alone by increasing the volume of the flow over the turbine. Claimed improvements vary, from 1.15 to 4 times higher power output than the same turbine minus the shroud. The Betz limit of 59.3% conversion efficiency for a turbine in an