Abstract: This paper deals with two critical issues about uniform circular arrays (UCAs): frequency-invariant response and steering flexibility. It focuses on some optimal design of ...

Abstract: Differential beamforming is one of the most popular beamforming approaches, which has the great potential to form frequency-invariant directivity patterns. In this paper, we study the design ...

This paper presents the optimization performance of non-uniform linear antenna array with optimized inter-element spacing and excitation amplitude using Particle Swarm Optimization (PSO). The aim of ...

In April 2025, the Main Marmara Fault below the Sea of Marmara in northwestern Türkiye experienced its largest earthquake in over 60 years. In a study published in Science, a team of researchers led ...

On March 28, 2025, a major earthquake with a moment magnitude (Mw) of 7.7 struck Mandalay, central Myanmar (referred to as the 2025 Myanmar earthquake). This event caused severe shaking and ...

Multibeam echosounder Backscatter Strength (BS) measurement is a pivotal tool for seabed mapping and monitoring. However, its effective utilization is contingent upon the resolution of challenges such ...

In the realm of materials science, electromagnetic (EM) metamaterials have emerged as a revolutionary class of engineered composites capable of manipulating electromagnetic waves in ways never before ...

The substantial variation between articulated phonemes is a fundamental feature of human voice production. However, while the spectral and temporal aspects of the phonemes have been extensively ...