Abstract: The 2-kV photovoltaic (PV) system is widely regarded as the next evolution for megawatt-scale PV systems, enabling higher rated power. This article proposes a novel variable-level (VL) ...

At senior official levels, one sometimes gets into positions where choices become difficult because they could violate one’s ...

Dear Meth, I was highly pleased when you found me in my home garden where the lawn had undergone so much damage as a result ...

Abstract: As one of the important energy industries, the safe production of coal mines not only concerns the safety of employees, but also affects the sustainable development of society. Recent rescue ...