Abstract: In flexible DC traction power supply system, stable operation of the three-phase PWM rectifier of the flexible traction substation is in order to ensure stable operation of the system.

Sasha Suda was three years into her five-year contract when the museum’s board announced that she was being terminated for cause. By Zachary Small In a series of social media posts, the department ...

Elizabeth Tsurkov, a citizen of Israel and Russia, recounts a harrowing story of cruelty, survival, U.S. diplomatic pressure and, finally, release from the grip of a group backed by Iran. By Adam ...