Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...
Abstract: High-speed train (HST) has garnered significant attention from both academia and industry due to the rapid development of railways worldwide. Millimeter wave (mmWave) communication, known ...
Abstract: A globally constant sound speed of 1540 m/s is often assumed when beamforming ultrasound images, despite variations in tissue properties that lead to heterogeneous sound speeds. As a result, ...
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