Abstract: The security of wireless communications is increasingly threatened by eavesdropping and jamming attacks. This paper proposes a novel framework for enhancing secure transmission using hybrid ...

Abstract: This letter considers a symbiotic radio (SR) system enhanced by a reconfigurable intelligent surface (RIS). The active transmit beamforming of the base station (BS) and the passive ...

Class 9 English Grammar MCQs with Answers: English Grammar is an important scoring section of the CBSE Class 9 English exam, carrying 10 marks in both half-yearly and annual exams (2025-26).

The shooting occurred around 12:40 p.m. local time on Wednesday, Sept. 10 at Evergreen High School in Evergreen, Colorado. The Jefferson County Sheriff’s Office issued an alert for an “active ...

Grammarly built its reputation on being a tool for checking spelling, grammar, and writing tips in English. The company is now expanding the scope of these features to support five more languages: ...

The domestic stock broking industry is seeing a sharp contraction in active accounts, which have fallen by nearly 40 lakh since January, as markets turned volatile amid Trump’s tariffs and the ...

Addis Ababa, September 7, 2025 (ENA) – Ethiopia is hosting over 25,000 delegates at the historic Second Africa Climate Summit (ACS2), positioning the continent as a source of climate solutions rather ...