Abstract: A novel metamaterial-inspired interaction structure is proposed to construct an X-band miniaturized klystron. The transverse dimension miniaturization of a resonant cavity is investigated by ...

In 2022, the Hunga Tonga–Hunga Ha’apai volcano erupted with such force that it sent powerful atmospheric pressure waves across the globe — all the way to Alaska, 6,000 miles away. These waves didn’t ...

The control of small structures and fast modes needs not only more accurate values in the commonly used dimensions (, u, T, P), but also, in fact more essentially, the controls from more dimensions.

Tsunami alerts have been issued for the U.S. West Coast, including Alaska and Hawaii, following an earthquake off the coast of Russia. Newsweek reached out to the National Weather Service (NWS) ...

Rapper-singer Rod Wave has been arrested in Georgia on charges of aggravated assault, possession and aiming a gun at someone. The Florida native, born Rodarius Marcell Green, was arrested May 20 on 14 ...

In the realm of general relativity, black holes are well-known for their ability to trap light and matter by bending spacetime, creating a point of no return. While black holes have fascinated ...

We examine the degenerate gravity waves in the presence of damped longitudinal waves. Specifically, under the assumption of linear longitudinal wave propagation in degenerate self-gravitating electron ...

Background: Cognitive decline in older adults is influenced by diverse factors, and degrees of influence of these factors may vary depending on sex, age cohorts, and passage of time. Moreover, these ...

Unusually high waves have been wreaking havoc on Peru's northern and central coasts. Video from Friday shows massive waves rolling over sailboats, swallowing jet skis and crashing into the coast as ...

The massive swell that pummeled California’s coast Monday brought destruction and death, but it also created one of the best surf days in the history of Mavericks, the most famous big-wave surf spot ...