We live in a richer world. But the gap between rich and poor is still very wide in individual countries. How to change this?

Abstract: The computational complexity of the three-level space vector pulsewidth modulation (SVPWM) limits its application in high-switching-frequency converters. To address this issue, this article ...

Abstract: To address the problem of inefficient continuous multi-task scheduling operations, a scheduling model was established with the optimization objective of minimum total scheduling time to ...

For the first time, a much younger version of the Sun has been caught by NASA’s Chandra X-ray Observatory. (Image: NASA/ESA/STIS) NASA spots a young Sun-like star blowing a giant hot gas bubble. First ...