IEEE

An Optimized Hybrid Unipolar PWM Technique for Ripple Reduction in Flying Capacitor of 5L-ANPC Converters

Abstract: Five-level active neutral-point-clamped (5L-ANPC) converters have emerged as promising solutions for various industrial applications owing to their outstanding performance and control ...
The New York Times

You Don’t Actually Have to Hard-Boil Your Easter Eggs

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› Advice, staff picks, mythbusting, and more. Let us help you. Updated March 25, ...
verywellhealth

Use These Breathing Exercises to Stop a Panic Attack

Breathing exercises like 4-7-8 breathing, Lion's breath, and alternate nostril breathing can help calm you during a panic attack. Grounding techniques, such as the 54321 exercise, help manage anxiety ...
The New York Times

With Bends, Crinkles and a Cool Decor Makeover, Carol Bove Takes the Guggenheim

She extracts something new from steel, dispelling its aura of brawn. Her signature form is a rumpled ribbon of metal painted to look as soft as suede. Critic’s Notebook She extracts something new from ...
IEEE

Enhancing the Output Performance of Energy Harvesters Using Hierarchical Auxetic Structure and Optimization Techniques

Abstract: In this article, we proposed a novel piezoelectric energy harvester based on hierarchical auxetic structures to improve the power output. The auxetic structure can harvest more energy ...