Deezer was to give unlimited access to music lovers through streaming technology. The site in its original incarnation was charged with copyright infringement by French agency SACEM, and after being shut down in April 2007 was relaunched as Deezer in August 2007, having reached an agreement with SACEM to pay copyright holders with revenue from advertising on the site and by giving users the ability to download songs streamed on Deezer from iTunes, with Deezer receiving a commission from each purchase. At the time of its launch in 2007, Deezer had not yet negotiated agreements with major music labels and therefore
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