Nanocellulose Treated With Red Onion Dye Provides Effective UV Protection for Solar Cells Mar. 19, 2025 — Researchers investigated how to use bio-based materials to produce effective UV ...

method in order to obtain optimum power from solar photovoltaic (PV) array. Conventional MPPT methods require one voltage and one current sensor. This paper proposes a novel single sensor-based MPPT ...

Abstract: A prototype of an ultrasonic obstacle detector developed as a part of a navigation system for blind and visually impaired people is presented. The detector, which employs a single ultrasound ...

These judges ruled against Trump. Then their families came under attack. An intimidation campaign against federal judges who have ruled against the Trump administration has strained the judges and ...