tubular

The U.S. Open of Surfing drew hundreds of fans to Huntington Beach this weekend as many of the top professionals in the sport competed in one of the most prestigious surfing events in the…

Figure 1. (top) Schematic diagram of a serially connected flexible tubular polymer electrolyte membrane fuel cells…

The device has two key elements -- a soft, stretchy tube made of silicone-based rubber, and a plastic coating etched with needles that pop up…