Essilor's new Stellest lenses—approved by the Food and Drug Administration (FDA) in September 2025—promise to slow nearsightedness in children. They use concentric lenslets to redirect light and ...

Abstract: This paper describes the Ultra-Low Side Lobe Radiation of Concentric Circular Array Antenna, which employs evolutionary optimization techniques. Particle Swarm Optimization (PSO), which has ...

Explore the art of mud building in a jungle survival environment, demonstrating how to create a unique structure using bamboo and clay. This project highlights traditional methods blended with ...

Abstract: Estimation of direction-of-arrival (DOA) is a fundamental problem in array signal processing. The uniform circular array (UCA) is a highly useful array geometry for DOA estimation, ...

Top 50 CBSE Class 12 Maths MCQs with Answers are available for Pre-Board and Board Exam 2026. Check this article to practise ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...