远紫外线 LED 可有效杀死细菌和病毒而不伤害人 诸平 Figure 1: Most LEDs emit visible light, but RIKEN physicists have created an LED that emits in a narrow region in the far ultraviolet that is safe for humans but deadly for viruses and bacteria. Credit: RIKEN Fi ...
一种廉价设备,可以从微风中收集能量并将其储存为电能 诸平 NTU Professor Yang Yaowen demonstrating how the device can generate and store electricity when exposed to a breeze generated by a wind tunnel. Credit: Nanyang Technological University 据新加坡南洋理工大学( Nanyang Technolog ...