Results 61 to 70 of about 11,676 (232)

Methodology for Performing Bathymetric and Photogrammetric Measurements Using UAV and USV Vehicles in the Coastal Zone

Remote Sensing
The coastal zone is constantly exposed to marine erosion, rising water levels, waves, tides, sea currents, and debris transport. As a result, there are dynamic changes in the coastal zone topography, which may have negative effects on the aquatic ...
Mariusz Specht
semanticscholar   +1 more source

Research on PID Parameter Tuning and Optimization Based on SAC-Auto for USV Path Following

Journal of Marine Science and Engineering, 2022
Unmanned surface vessels (USVs) are required to follow a path during a task. This is essential for the USV, especially when following a curvilinear path or considering the interference of waves, and this work has been proven to be complicated.
Lifei Song, Chuanyi Xu, Leanna Hao, Jianxi Yao, Rong Guo   +4 more
semanticscholar   +1 more source

Validation of ECMWF Ensemble Forecasts of Sea Surface Latent and Sensible Heat Fluxes in the Pacific Arctic Against Saildrone Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Estimates of sea‐surface latent and sensible heat fluxes using in situ observations are very rare in the Arctic Ocean. Saildrone Explorer uncrewed surface vehicles (saildrones) were deployed in the Bering, Chukchi, and Beaufort Seas from May–October 2019.
Tasha Lee, Brandon Troub, Isabella M. Dressel, Mark Yamane, Tan Dao, Dongxiao Zhang, Chidong Zhang   +6 more
wiley   +1 more source

Trends and Challenges in Unmanned Surface Vehicles (USV): From Survey to Shipping

, 2021
Autonomy and unmanned systems have evolved significantly in recent decades, becoming a key routine component for various sectors and domains as an intrinsic sign of their improvement, the ocean not being an exception. This paper shows the transition from
C. Barrera, Isidro Padrón Armas, F. Luis, O. Llinâs, N. Marichal   +4 more
semanticscholar   +1 more source

Coastal Marine Carbon and Air‐Sea Fluxes Quantified From pH Sensors on an Extended AUV Deployment

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract For the first time, the Autosub Long Range (ALR) completed a fully autonomous, long‐distance (2,000 km) scientific mission, delivering new insight into coastal carbonate dynamics and air‐sea CO2 ${\text{CO}}_{2}$ fluxes. Equipped with a suite of oceanographic sensors, including a Lab‐on‐Chip (LOC) pH sensor and a Sea‐Bird SeaFET pH sensor, the
Emily M. Hammermeister, Cathy Wimart‐Rousseau, Stathys Papadimitriou, Pablo Trucco‐Pignata, Edward Chaney, Robert Templeton, Alexander B. Phillips, Socratis Loucaides   +7 more
wiley   +1 more source

Gasdermin D‐Mediated Release of IL‐33 Results in Fetal Brain Developmental Abnormalities During Maternal Colitis

Advanced Science, Volume 13, Issue 38, 9 July 2026.
Under colitis, Gsdmd mediates the release of IL‐33 from the epithelium of pregnant mice. IL‐33 can cross the placenta and enhance the proliferative capacity of neural stem cells, ultimately resulting in behavioral deficits in the offspring. Excessive pyroptosis in the colonic epithelium also triggers the translocation of LPS, which in turn increases ...
Huiyang Jia, Shukui Zhang, Kai Ma, Jie Zhou, Jianwei Jiao   +4 more
wiley   +1 more source

Longitudinal analysis of ultrasonic vocalizations in mice from infancy to adolescence: Insights into the vocal repertoire of three wild-type strains in two different social contexts.

PLoS ONE, 2019
Ultrasonic vocalizations (USV) are emitted by mice under certain developmental, social and behavioral conditions. The analysis of USV can be used as a reliable measure of the general affective state, for testing the efficacy of pharmacological compounds ...
Tatiana Peleh, Ahmed Eltokhi, Claudia Pitzer   +2 more
doaj   +1 more source

eDNA Collected by Custom‐Built Unmanned Surface Vehicles (USVs) Reveals Spatio‐Temporal Shifts in Tropical Coral Reef Faunal Communities

Environmental DNA, Volume 8, Issue 4, July‐August 2026.
Self‐constructed Unmanned Surface Vehicles were deployed at coral reefs on Reunion Island to capture environmental DNA (eDNA), identifying changes in animal communities depending on the time of day and sampling station. These findings suggest specific sites for high‐frequency, long‐term eDNA monitoring using low‐cost mobile devices.
Dominique A. Cowart, Thomas Chevrier, Anne‐Elise Nieblas, Jérémie Chanut, Mervyn Ravitchandirane, Victor Illien, Magali Duval, Serge Bernard, Sylvain Bonhommeau   +8 more
wiley   +1 more source

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

International Journal of Satellite Communications and Networking, Volume 44, Issue 4, Page 378-393, July/August 2026.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

Robust Fixed-Time Fault-Tolerant Control for USV with Prescribed Tracking Performance

Journal of Marine Science and Engineering
The unmanned surface vessel (USV) is an emerging marine tool with its advantages of automation and intelligence in recent years; the good trajectory tracking performance is an important capability. This paper proposes a novel prescribed performance fixed-
Zifu Li, Kai Lei
semanticscholar   +1 more source