Abstract: In this paper, we employ massive multiple-input and multiple-output (MIMO) technology to support multiple Internet-of-Things devices with ultra-reliability and low-latency communication ...

Abstract: This paper presents an X-band 45° polarization shaped beam antenna with designable concave depth implemented using metal 3D printing. The key innovations include: (1) A dual-waveguide ...

The spread of the Slavs stands as one of the most formative yet least understood events in European history. Starting in the 6th century CE, Slavic groups began to appear in the written records of ...

1 School of Public Health, Inner Mongolia Medical University, Hohhot, China 2 Ordos Center for Disease Control and Prevention, Ordos, China Background: This study aimed to investigate the association ...

Retired people are advised to hold vastly more emergency cash than during their working years. The typical rule of thumb for workers is to have cash on hand to cover three to six months of essential ...

A rider waits for DART rail train at Akard Station during a heavy rain on Tuesday, July 8, 2025, in Dallas. 4:18 p.m. Aug. 30, 2025: This story updated with additional information. A wide swath of ...