TOKYO A new iPad app developed by major Chinese drone maker DJI allows camera drones to fly automatically, allowing users to connect the device's remote control and then plot flight areas on a map.
Energy Exploration & Exploitation, Vol. 37, No. 1 (January 2019), pp. 558-578 (21 pages) This paper proposes a frequency-based method for sizing the hybrid energy storage system in order to smoothen ...