Abstract: Due to the impedance interaction, pulse width modulation (PWM) rectifier is prone to oscillation under constant power load. First, the oscillation mechanism and characteristics of the PWM ...

Melissa Breyer was Treehugger’s senior editorial director before moving to Martha Stewart. Her writing and photography have been featured in The New York Times, The Guardian, National Geographic, ...

Also on Wednesday the Department of Health revealed that since April 2025, more than 100,000 red flag or time-critical patients have been seen, diagnosed or treated across Health and Social Care ...

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