The best power banks and portable chargers for every device in 2025 Never run out of juice again, no matter where you are with these best portable battery chargers.

A unified one-cycle control is presented to achieve bidirectional power flow operation for a four-switch buck–boost converter employing fully digitalized control. There is no need for analog ...

Underwater sensor networks (UWSNs) are vulnerable to jamming attacks due to the narrow frequency bandwidth and the fast fading channels. In this paper, we propose a reinforcement learning (RL)-based ...