Results 181 to 190 of about 3,227,807 (272)

A Double Rate Localization Algorithm with One Anchor for Multi-Hop Underwater Acoustic Networks. [PDF]

Sensors (Basel), 2017
Gao J, Shen X, Zhao R, Mei H, Wang H.
europepmc   +1 more source

River Sand and Gravel Mining: Global Drivers, Impacts, and Pathways for Sustainable Management

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract River sand and gravel are mined worldwide at volumes that now rival their natural replenishment, yet quantitative knowledge of this mining activity and its consequences lags far behind many other global environmental pressures. We synthesize 411 peer‐reviewed studies published since 1974 within a new Driver‐to‐Management Pathway for ...
Edward Park, Christopher R. Hackney, Dung Duc Tran, Mette Bendixen, Jim Best, Kai Wan Yuen, Hannah Runeckles, Md Sadiul Alam Chyon, Karl Kästner, Sonu Kumar, Halinishi Yusuf, Vanessa Lamb, Lars L. Iversen, Aelis Spiller, Rajiv Sinha, Eduardo Francisco da Silva, Enner Alcantara, Chengcheng Wu, Chengpeng Lu, Chu Jian, Jingyu Wang, Nguyen Duc Thien, Lian Feng, Priyank Pravin Patel, Jiachun Huang, Adam D. Switzer   +25 more
wiley   +1 more source

BEML-sonar: a bio-inspired echolocation and machine learning-enhanced SONAR for underwater object detection and navigation. [PDF]

Sci Rep
Reddy CKK, Kaza VS, Anisha PR, Khan SB, Alshuhail A, Almusharraf A.   +5 more
europepmc   +1 more source

High Resolution Field Observations of Shoreward Sediment Transport Within the Wave Bottom Boundary Layer on a Sandy Beach

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract We introduce a data archive containing the first highly resolved profiles of velocity and sediment concentration within the wave bottom boundary layer (WBBL) on a natural sandy beach. Resolution of the thin WBBL was made possible by deployment of a unique “Multi‐Frequency Doppler” (MFDop) bistatic acoustic profiling instrument on an Oregon ...
Gregory W. Wilson, Jenna Hare, Stephen M. Henderson, Richard A. Cheel, Alex E. Hay   +4 more
wiley   +1 more source

Deep deterministic policy gradient based routing protocol for UWSNs. [PDF]

Sci Rep
Gola KK, Chakraborty S.
europepmc   +1 more source

Variation of Movable Bed Roughness in the Lower Yellow River Owing to Upstream Damming

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Significant changes in flow‐sediment dynamics and channel evolution have occurred in the Lower Yellow River owing to upstream damming. Notably, the post‐dam stage has witnessed an unexpected increase in movable bed roughness and more frequent dune development, driven by reduced sediment load, coarsened bed material, and altered hydraulic ...
Junqiang Xia, Xianziyi Zhang, Yifei Cheng, Meirong Zhou, Shanshan Deng   +4 more
wiley   +1 more source

A Variational Bayesian Constrained EKF for Sonar-Based Underwater Target Tracking in Shallow Water. [PDF]

Sensors (Basel)
Zhou H, Ding Y, Gao H, Wang G, Ge T, Zhang Y.   +5 more
europepmc   +1 more source

Deep blueprint: A literature review and guide to automated image classification for ecologists

Journal of Animal Ecology, Volume 95, Issue 9, Page 1558-1585, September 2026.
A practical, literature‐grounded review that gives ecologists a clear, modular workflow for deep learning image classification. With code, GUIs and a novel deep sea case study (automated deep sea biotope classification) it lowers technical barriers and provides a usable blueprint for accelerating, standardising, and scaling ecological image analysis ...
Chloe A. Game, Nils Piechaud, Kerry L. Howell   +2 more
wiley   +1 more source

RUL-DBRS: A Novel Energy Efficient and Robust Protocol for Enhanced Communication in Underwater Wireless Sensor Networks. [PDF]

Sci Rep
Salam A, Haider S, Khan N, Ullah F, Kamal S, Khan AA.   +5 more
europepmc   +1 more source

Ocean sediments and shifting baselines—A call to revise European habitat classifications

Journal of Applied Ecology, Volume 63, Issue 9, September 2026.
Shifting baselines affect the appropriateness of existing habitat classification frameworks, potentially reducing MPA integrity and efficacy. To enable representative mapping, accurate sensitivity assessments and appropriate management of marine habitats, EUNIS classifications require more flexibility.
Rebecca S. Turley, Shion E. A. Reynell, Sian E. Rees, Marija Sciberras, Timothy Scott, Bryce D. Stewart, Duncan Vaughan, Emma V. Sheehan   +7 more
wiley   +1 more source