Results 121 to 130 of about 1,366,396 (241)

Super‐Resolution and High‐Data‐Density Acoustic Meta‐Hologram via Amplitude and Phase Coupling

open access: yesAdvanced Science, Volume 13, Issue 52, 18 September 2026.
A super‐resolution acoustic meta‐hologram utilizes amplitude‐phase coupling under energy conservation constraints to overcome the traditional diffraction limit. This conceptually advanced approach achieves high‐fidelity acoustic field reconstruction and dense information transmission, unlocking new potentials for high‐resolution acoustic imaging and ...
Xiao Guo   +15 more
wiley   +1 more source

Island Invader: Rugulopteryx okamurae and the Challenge for Macaronesian Coasts

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 9, September 2026.
ABSTRACT Since 2015, Rugulopteryx okamurae, a brown seaweed native to the Northwest Pacific, has become one of the most conspicuous marine invaders in the European continental coastal waters. Its recent establishment in the Macaronesian archipelagos (the Azores, Madeira and Canary Islands) has produced significant ecological changes, including ...
Rodrigo Riera   +4 more
wiley   +1 more source

Learning to Equalize for Single-Carrier Underwater Acoustic Communications

open access: yesJournal of Marine Science and Engineering
Learning-based equalizers for multicarrier communication systems have been widely studied over underwater acoustic (UWA) channels. In this article, a learning-based equalizer is utilized for single-carrier (SC) underwater acoustic communications.
Hao Zhao   +5 more
doaj   +1 more source

A Review of Fault‐Tolerant Control Applications in Process Equipment: Boilers, Heat Exchangers, Pumps, Turbines, and Engines for Greater Reliability

open access: yesEngineering Reports, Volume 8, Issue 9, September 2026.
The article explores ways such as ultrasonic guided wave testing, infrared thermography, acoustic emission, vibration analysis, and oil analysis to prevent faults from affecting the plant and help with fault isolation. It focuses on how FTC is combined with modern tools like Artificial Intelligence (AI), the Internet of Things (IoT), sliding mode ...
Arslan Ahmed Amin   +4 more
wiley   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

open access: yesFlexMat, Volume 3, Issue 3, Page 452-501, September 2026.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu   +3 more
wiley   +1 more source

Report on Air Launched Autonomous Underwater Vehicles [PDF]

open access: yes, 2011
The feasibility of Autonomous Underwater Vehicles (AUVs) being launched from aircraftwas funded through the NERC Oceans 2025 programme, investigating a more economicalof seeding wide swaths of ocean with sensors carrying out wide scale, synoptic ...
Stevenson, P.
core   +1 more source

Communications underwater [PDF]

open access: yes, 2004
This invited contribution is intended for an audience familiar with general underwater acoustics but which wishes to gain more understanding of underwater communication using acoustic waves as a carrier.
Zieliński, A.
core  

Model predicts coastal paralytic shellfish toxicity in mussels from in situ phytoplankton concentrations

open access: yesLimnology and Oceanography, Volume 71, Issue 9, September 2026.
Abstract Harmful algal blooms (HABs) of Alexandrium catenella occur annually in the Gulf of Maine, leading to accumulation of paralytic shellfish toxins (PSTs) in bivalve mollusks and closure of harvesting areas. State monitoring programs in the region rely on weekly shellfish sampling and toxin analysis, requiring extensive effort with limited ...
Sylvain Gaillard   +6 more
wiley   +1 more source

Application of Magnesium Metal as Anode in Batteries

open access: yesMetalMat, Volume 3, Issue 3, September 2026.
When used as an anode, magnesium metal offers several advantages, including a high volumetric capacity, environmental friendliness, abundant natural reserves, and a low tendency for dendrite growth. Battery types employing magnesium as the anode include rechargeable magnesium‐ion batteries, aqueous magnesium‐ion batteries, magnesium–air batteries, and ...
Yuanjie Zhang   +5 more
wiley   +1 more source

Optimized Pilot Design for OTFS Modulation in Underwater Acoustic Communications

open access: yes
This paper explores the selection of orthogonal timefrequency-space (OTFS) modulation parameters for underwater acoustic communication channels. It presents the first results of a new, recently formulated pilot allocation and power distributionstrategy ...
Pelekanakis, K.   +4 more
core  

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