Abstract: Usually, the acoustic characteristics of transducers are calibrated in the free field. Affected by the boundary reflection in the free field region in a limited space, accurately calibrating ...

Driven by rapid growth in EVs, energy storage and data centers, China’s leading cooling plate manufacturers are ...

Reports on March 4, 2026, revealed that a U.S. Navy submarine sank the Iranian warship IRIS Dena using a torpedo in the Indian Ocean near Sri Lanka. A torpedo is a powerful underwater missile used in ...