Results 41 to 50 of about 14,950 (212)

Timing is everything: Drivers of interannual variability in blue whale migration. [PDF]

, 2020
Blue whales need to time their migration from their breeding grounds to their feeding grounds to avoid missing peak prey abundances, but the cues they use for this are unknown.
Ballance, Lisa T, Franks, Peter JS, Hildebrand, John A, Ohman, Mark D, Rice, Ally, Szesciorka, Angela R, Širović, Ana   +6 more
core  

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Intra-Seasonal Acoustic Variation in Humpback Whale Songs in the North Colombian Pacific

Journal of Marine Science and Engineering
Humpback whales (Megaptera novaeangliae) are well known for their complex acoustic communication, which plays a critical role in social interactions and reproduction.
Juliana López-Marulanda, Hector Fabio Rivera-Gutierrez   +1 more
doaj   +1 more source

Performance Study of a Humpback Whale Fluke Turbine on Foil Shape Variation Based on Double Multiple Streamtube Model

Kapal, 2023
Exploration of ocean current energy allows for the development of turbines as the primary conversion device. Turbine technologies have been developed in various types, including bio-inspired turbines, such as the humpback whale fluke turbine.
Rizki Mendung Ariefianto, Rini Nur Hasanah, Wijono Wijono, Asfarur Ridlwan   +3 more
doaj   +1 more source

Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2006 [PDF]

, 2006
(PDF contains 88 pages.

core  

A Novel Crawling Robot Based on the Hexagonal Mesh Structure and Enhanced PID Control Strategy

Journal of Field Robotics, EarlyView.
ABSTRACT The locomotion of crawling robots is similar to that of caterpillars, relying on foot adhesion and body contraction to ensure flexible movement without compromising stability. However, most existing pneumatic soft crawling robots are incapable of simultaneously achieving forward, backward, turning, and climbing capabilities.
Meng Hongjun, Ren Yuke, Wei Jingtao, Zhang Shupeng, Zhang Wei   +4 more
wiley   +1 more source

What do humpback whales Megaptera novaeangliae (Cetartiodactyla: Balaenopteridae) pairs do after tagging?

Zoologia (Curitiba), 2014
The social structure of humpback whales in their tropical wintering grounds is very fluid. To date, no information has been published for cases in which two whales were both satellite-tagged while in association.
Artur Andriolo, Alexandre N. Zerbini, Sergio Moreira, José L. Pizzorno, Daniel Danilewicz, Ygor G. Maia, Natália Mamede, Franciele R. de Castro, Phillip Clapham   +8 more
doaj   +1 more source

Decreases in encounter rate of endangered Northeast Pacific humpback whales in Southern Costa Rica: Possible changes in migration pattern due to warming events

Frontiers in Marine Science, 2022
Warming events in the Pacific Ocean are becoming more frequent, intense, and on a larger temporal and spatial scale. This has caused critical habitats of marine species to lose their quality and marine organisms respond by modifying their critical ...
Lili Pelayo-González, Lili Pelayo-González, David Herra-Miranda, Juan Diego Pacheco-Polanco, Héctor M. Guzmán, Sierra Goodman, Lenin Oviedo   +6 more
doaj   +1 more source

Humpback and Fin Whaling in the Gulf of Maine from 1800 to 1918 [PDF]

, 2002
The history of whaling in the Gulf of Maine was reviewed primarily to estimate removals of humpback whales, Megaptera novaeangliae, especially during the 19th century.
Clapham, Phillip J., Reeves, Randall R., Robbins, Jooke, Smith, Ted D., Webb, Robert L.   +4 more
core  

Semi‐automated seal detection on the Western Antarctic Peninsula: an unsupervised machine learning approach for detecting ice seals in aerial survey data

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a semi‐automated, rule‐based image analysis pipeline to detect ice seals in aerial surveys of the Western Antarctic Peninsula during an unusually low sea ice year. By using simple hierarchical clustering instead of deep learning, the method substantially reduced human annotation effort while achieving 82% recall, identifying 758 ...
Claire McGinnity, Connor C.G. Bamford, Nathan Fenney, Andrew Fleming, Jaume Forcada, Michael S. Tift, Luis A. Hückstädt, Daniel P. Costa, Peter T. Fretwell   +8 more
wiley   +1 more source