Abstract: The air-cooled proton exchange membrane fuel cell is widely used in unmanned aerial vehicle since its small size and high efficiency. The bipolar plate structure is an important factor ...

The squad includes one change from the recent series in Pakistan, with Warwickshire's batting all-rounder Jacob Bethell called up for his first inclusion in a Test squad. The 21-year-old, an attacking ...

We put several robot vacuums from Roborock, Eufy, Dreame, and more through a series of mess tests to see which stood out.