Deezer with 20 million songs in its library. By 2016, according to CEO Dauchez, the company aimed to have five percent of the global music market. In January 2013, Deezer announced its expansion into 22 new countries across Africa, Asia, Brazil, the Middle East, and the United States, bringing its total to 182. However, the United States launch has been restricted to a limited number of device promotions. In July 2016, Deezer added U.S. to the supported country list. As of February 2018, Deezer listed on its website 189 countries where the service was available. Following this expansion, Deezer announced in
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