Square-lattice pentamode metamaterial for acoustic cloaking: design and validation
An aluminium square-lattice pentamode cloak reduced scattering in simulations and restored acoustic transmission relative to an aluminium block in tank ...
Tag: underwater acoustics
Acoustic study links Omura’s whales to warm, productive waters
An analysis of 18 years of underwater recordings suggests Omura’s whales are more likely to occur in warm, productive waters ...
Sound’s Hidden Stripes: New Acoustic Method Pinpoints Deep-Ocean Targets With Striking Accuracy
Chinese researchers have developed a joint acoustic matching method that reads vertical interference patterns at two frequency bands to locate ...
New Embedded Hydrophone System Hears Underwater Explosions Hundreds of Kilometers Away
Chinese researchers have built an embedded very-low-frequency acoustic recorder that captured underwater explosion signals from over 500 kilometers away, combining ...
Lightweight AI Sees Through Murky Water to Spot Defects in Underground Drainage Pipelines
Researchers at Hohai University have developed ShuffleNet-MSAA, a lightweight AI system that uses adaptive attention and sonar imaging to detect ...
AI Learns to Identify Ships From Sound With Only a Handful of Examples
Researchers have unveiled a meta-learning model that recognizes ship types from underwater sound using only a few examples while retaining ...
Blacktip Sharks Detect Sound From Nearly 250 Feet Away and Turn Away From the Source
A Florida Atlantic University field study shows free-swimming blacktip sharks can detect low-frequency sounds from up to 74 meters away ...
Hidden Warm Layers in the Indian Ocean Reshape How Sound Travels Underwater
A new study maps winter surface temperature inversions across the North Indian Ocean and shows how they deepen or shrink ...
Ocean Warming and Acidification May Be Reshaping How Sound Travels in the Bay of Bengal
Six decades of hydrographic records show that warming, shifting stratification, and falling pH in the Bay of Bengal may be ...
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Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study
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University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept
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Bee body mass, pathogens and local climate influence heat tolerance
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Researchers record first-ever images and data of a shark experiencing a boat strike
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Groundbreaking Clinical Trial Reveals Lubiprostone Enhances Kidney Function
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