Abstract: Unmanned aerial vehicles (UAVs) have emerged as promising platforms for fast, energy-efficient, and cost-effective package delivery. Path planning in 3-D urban environments is critical to ...

Abstract: This letter demonstrates that an inexpensive, easy-to-deploy, and portable 3-D-printed all-dielectric corner-like Bragg reflector can boost antenna gain. Notably, the concept shown here ...

The influential band’s singer and guitarist died at 27, but the bassist Mike Watt and the drummer George Hurley never lost his spirit. By Bob Mehr Reporting from San Pedro in Los Angeles D. Boon — the ...

Hannah Harper is a wellness editor for Health. Previously, she was an associate editor, assistant editor, and editorial assistant for Health. She covers topics on nutrition, women's health, and more.

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