Results 121 to 130 of about 11,277,587 (243)

Target discrimination in bubbly water

open access: yes, 2012
A man-made sonar that can operate in bubbly water is relevant: decades of active sonar experience built up for deep water applications are insufficient for shallow water operations required of a changed maritime security landscape.
Chua, Gim Hwa
core   +1 more source

The Nexus Between Circular Economy and Sustainable Supply Chain Management: PRISMA Methodology

open access: yesSustainable Development, Volume 34, Issue 5, Page 7456-7490, September 2026.
ABSTRACT The intersection of sustainable supply chain management (SSCM) and circular economy (CE) has attracted increasing academic and practical attention, emphasizing the need for integrated sustainability approaches. This study employs the PRISMA protocol and conceptualizes the CE–SSCM relationship as a dynamic system in which internal capabilities,
Feriel Barkaoui, Khaled Ben abdallah
wiley   +1 more source

An Effective Strategy of Object Instance Segmentation in Sonar Images

open access: yesIET Signal Processing
Instance segmentation is a task that involves pixel-level classification and segmentation of each object instance in images. Various CNN-based methods have achieved promising results in natural image instance segmentation. However, the noise interference,
Pengfei Shi   +5 more
doaj   +1 more source

Toward an Improved Understanding of the Antarctic Coastal Zone and Its Contribution to Future Global Sea Level

open access: yesReviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka   +79 more
wiley   +1 more source

SoNaR-500 STEVIN Nederlandstalig Referentiecorpus (corpus geschreven Nederlands, 500 miljoen woorden)

open access: yes, 2012
Item does not contain fulltextHet SoNaR-project is een project dat gefinancierd wordt in het kader van het Nederlands-Vlaams STEVIN-programma. Het project beoogt de aanleg van een groot corpus (minimaal 500 miljoen woorden) geschreven Nederlands.
et al., Oostdijk, N.H.J.
core  

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

open access: yesReviews 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   +25 more
wiley   +1 more source

An Unsupervised Obstacle Segmentation Method for Forward-Looking Sonar Based on Teacher–Student Transfer Learning

open access: yesJournal of Marine Science and Engineering
Facing the challenges of scarce annotations in forward-looking sonar image segmentation, this paper proposes a teacher–student network for unsupervised domain adaptation.
Sen Gao, Wei Guo, Gaofei Xu, Ben Liu
doaj   +1 more source

Decadal‐Scale Bathymetric Change in a Shallow Coastal Bay

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract Coastal marshes and bays must accumulate sediment to maintain their position relative to mean sea level during periods of sea level rise (SLR). Resuspension of bay‐bottom sediment, which together with tidal inundation promotes marsh deposition, is sensitive to water depth, but quantitative measurements of bathymetric change across shallow bays
Tyler E. Barnes   +2 more
wiley   +1 more source

Radical‐Mediated Dispersion Breaks Aggregation Limits in Carbon Thermoelectrics

open access: yesAngewandte Chemie, Volume 138, Issue 35, 24 August 2026.
We report a rationally designed small molecule (OTN) that effectively disperses SWCNTs via π–π and radical‐radical interactions, yielding hybrid films with a record power factor of 30.1 µW cm−1 K−2 and excellent flexibility. A nine‐leg device achieves a record normalized power density of 0.653 µW cm−2 K−2, setting a new benchmark for carbon‐based ...
Shanshan Zhou   +9 more
wiley   +2 more sources

Self-Training Can Reduce Detection False Alarm Rate of High-Resolution Imaging Sonar

open access: yesApplied Sciences
Imaging sonar is a primary means of underwater detection, but it faces challenges of high false alarm rates in sonar image target detection due to factors such as reverberation, noise, and resolution.
Jingqi Han   +5 more
doaj   +1 more source

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