Ben Hargreaves looks into why ADHD medicines are still suffering shortages nearly a year after first being announced. The problem has emerged due to surging demand for the medication, but also amid a ...
Abstract: Neutral sections (NSs) in electric railways cause train speed loss, transient overvoltage, and arcing, posing threats to the system's safe operation. Thus, this article proposes a ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback