Abstract: This paper proposes a new single-stage topology for medium-voltage AC (MVAC) to low-voltage DC (LVDC) solid-state transformers (SSTs) based on the recently introduced Converter PWM Switch ...

Abstract: This paper provides a detailed examination of speed control methods for induction motors, with a specific focus on the use of different pulse width modulation (PWM) techniques to achieve ...

Scientists at Michigan State University have uncovered the molecular “switch” that powers sperm for their final, high-speed dash toward an egg. By tracking how sperm use glucose as fuel, the team ...

Reporters Without Borders (RSF) is alarmed by the halt of Radio Free Asia’s shortwave services in Mandarin, Tibetan, and Lao – it is the only reliable source of news in regions where authoritarian ...

New Delhi: HT Media’s decision to shut Radio Nasha in Mumbai, Radio One in Delhi, Mumbai, and Bengaluru, and Fever in Chennai has added to the growing stress in India’s private FM radio business. The ...