Abstract: The railway power conditioner using partial compensation (PC) mode can compensate well for reactive power and negative sequence current with lower output current in electrified railway. In ...

Across the country, states are passing new laws aimed at improving math teaching—mandating that schools intervene early to ...

Mathematicians finally understand the behavior of an important class of differential equations that describe everything from ...

A national nonprofit that aims to improve math outcomes for students in pre-K-5 found there are four key elements to ...

President Trump said Saturday that he hopes “enough people will use their heads” to bring a swift end to the partial government shutdown that began this weekend. “I think it’s going fine,” Trump told ...

Add Yahoo as a preferred source to see more of our stories on Google. President Trump said Saturday that he hopes “enough people will use their heads” to bring a swift end to the partial government ...

Abstract: The most frequent and dangerous hazard to the electrical insulation of high voltage (HV) and high field (HF) equipment is partial discharges (PD). The development of PD activity is both a ...