Abstract: In this article, two multibeam reflectarray antennas are presented for Ka-band in a multi-feed configuration. Both feature a wide-angle scanning range with very low scan losses. They are ...

Abstract: A two-stage beamforming technique for a wide tilt angle is proposed in this letter. The proposed structure has the potential to overcome the limitations of Butler matrix-based beamforming ...

A fun and easy way to sketch heads from different angles using a simple construction method that builds strong proportions. This tutorial starts with a basic circle as your foundation, then shows how ...

CLEVELAND, Ohio -- The first thing visitors see when they enter the Cleveland Museum of Art’s “Renaissance to Runway” fashion exhibition isn’t a gown or a painting. It’s a 2-minute, 45-second video ...

A year ago, I wrote a piece here about how people were really using gen AI. That article seemed to hit a note: It was popular, featured in viral posts, and the beautiful accompanying infographic has ...

It is difficult to identify patients with atrial fibrillation (AF) most likely to respond to ablation. While any arrhythmia patient may recur after acutely successful ablation, AF is unusual in that ...

Introduction: Glial fibrillary acidic protein (GFAP), highly brain-specific, is emerging as an attractive blood biomarker in acute stroke. GFAP can discriminate stroke type (ischemic stroke (IS), ...

The use of bisphosphonates, particularly risedronate, in patients with osteoporosis is linked to a higher risk for acute angle closure but not open-angle glaucoma. Researchers conducted a ...

We may receive a commission on purchases made from links. Measuring and cutting floorboards might look like a straightforward project from the outset, but once you reach any unusually shaped gaps ...

Democrats on a Senate subcommittee are accusing UnitedHealthcare Group of denying claims to a growing number of patients as it tried to leverage artificial intelligence to automate the process. In an ...