Results 121 to 130 of about 4,866,384 (247)

Few Annotations, High Accuracy: Transfer Learning and Data Augmentation Improve Passive Acoustic Monitoring of the Vulnerable African Manatee

Remote Sensing in Ecology and Conservation, EarlyView.
Can deep learning reliably detect a threatened species in passive acoustic monitoring with few annotations? Across 52 sites and 600 recording days, we compared two deep learning recognizers with the traditional machine learning Kaleidoscope for detecting African manatee vocalizations.
Lucas Dubus, Auguste Verdier, Nina Giotto, Grace Mbemba, Gabriel Michelin, Baptiste Mulot, Stéphanie Manel, David Mouillot   +7 more
wiley   +1 more source

Repurposing Bird‐Based Acoustic Models for Amphibian Surveys: Strengths and Limitations in Real‐World Deployments

Remote Sensing in Ecology and Conservation, EarlyView.
In this study, we developed AnuraSearch, an open‐source classifier for 11 Ukrainian amphibian species, by repurposing the avian BirdNET algorithm via transfer learning to process over 18,000 h of autonomous acoustic recordings. Although the model demonstrated high precision and successfully reconstructed detailed seasonal and diel vocal activity ...
Vasylyna Strus, Yurii Strus, Nazar Smirnov, Anna Fedorova, Nataliia Suriadna, Mykola Drohvalenko   +5 more
wiley   +1 more source

An environmental equalizer for underwater acoustic communications Tested at Hydralab III [PDF]

, 2010
It is known that small changes in source and receiver locations can cause significant changes in underwater acoustic channel impulse responses. At HYDRALAB III an underwater acoustic experiment was conducted to show that a source depth-shift causes a ...
Silva, A., Mertins, C., Ijaz, S., Jesus, S. M., Zabel, F.   +4 more
core  

Relevance of the Magnetic Nanoparticles for Second Harmonic Ultrasound Generation: A New Approach for Magneto‐Acoustic Theranostic

Small, EarlyView.
Pulsed electromagnetic fields induce second harmonic ultrasound generation in magnetic nanoparticles under isothermal conditions without heating. Non‐aligned and magnetically pre‐aligned nanoparticle clusters significantly enhance acoustic emission amplitude.
R. Marqués‐Gómez, Melchor, A. C. Moreno‐Maldonado, C. Marquina, G. F. Goya, M. R. Ibarra, G. Rus   +6 more
wiley   +1 more source

Heterogeneous Multi-Branch Feature Fusion Architecture for Underwater Acoustic Target Recognition

Polish Maritime Research
The task of underwater acoustic target recognition has significant value for both military and civilian applications involving complex marine environments.
Yang Yuexiong, Chu Zhenhao, Peng Zilong
doaj   +1 more source

A Novel Multi-Feature Fusion Model Based on Pre-Trained Wav2vec 2.0 for Underwater Acoustic Target Recognition

Although recent data-driven Underwater Acoustic Target Recognition (UATR) methods have played a dominant role in marine acoustics, they suffer from complex ocean environments and rather small datasets. To tackle such challenges, researchers have resorted
Yangtao Xue, Peican Zhu, Zijun Pu, Xiaodong Cui, Qunfei Zhang   +4 more
core   +1 more source

Toward Enhanced Safety Management in Wave Energy Power Plant Construction Projects: FMEA and HAZOP Combination

Safety Science and Technology, EarlyView.
Consolidated FMEA–HAZOP safety management framework for WEC construction projects. ABSTRACT This study presents an advanced safety management framework for “Wave Energy Converter” (WEC) projects, addressing the inherent uncertainty, technological complexity, and environmental exposure of offshore renewable energy systems.
Panagiotis K. Marhavilas, Konstantinos Douitsis, Nick Delianidis, Stefanos Keskinis, Georgios Charalampos Kafoutis   +4 more
wiley   +1 more source

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

Safety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang, Kang Yang, Jiang Dong, Lidong Xing, Bing Chen, Changke Chen   +5 more
wiley   +1 more source

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

Integrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic, Cleopatra Mara Loza, Alejo Carlos Scarano, Pedro Fernando Andrés‐Laube, Francisco Acuña, Juan Pablo Loureiro, Carolina Natalia Zanuzzi, Nicolás Nahuel Castro, María Teresa Pombo, Lorenzo von Fersen, Claudio Gustavo Barbeito   +10 more
wiley   +1 more source

The Effects of Noise on the Juvenile Life Stage of Crustaceans: Behavioral, Cellular, and Molecular Responses in Procambarus clarkii

Integrative Zoology, EarlyView.
Juvenile Procambarus clarkii exposed to noise exhibited behavioral changes, shifts in enzymatic activity, and altered expression of stress and immune genes. The findings highlight the sensitivity of invertebrate juveniles to anthropogenic acoustic pollution.
Maria Ceraulo, Giuseppa Buscaino, Clarissa De Vita, Aiti Vizzini, Mirella Vazzana, Elena Papale, Francesco Longo, Francesco Paolo Faraone, Manuela Mauro   +8 more
wiley   +1 more source