Abstract: This letter proposes a new method for controlling the divergence angles of multimode orbital angular momentum (OAM) vortex beams. A geometric framework is established that allows for the ...

Abstract: An accurate heart rate (HR) estimation using a radar sensor is challenging in real-life situations due to frequent changes in a person’s sitting position and posture. Furthermore, radar ...

A cellular beam is a type of alveolar beam that is manufactured through three main steps: (1) make double longitudinal cuts in the web of regular I-section beams; (2) separate two web parts and ...

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