Results 181 to 190 of about 632,387 (252)

An efficient transformer architecture with depthwise separable convolutions for high-accuracy underwater acoustic target recognition. [PDF]

Sci Rep
Mahmud NA, Zhang T, Iqbal Y, Sumona FB, Azaz I, Geng Y, Khan W, Kharma QM, Rubanenko O.   +8 more
europepmc   +1 more source

Eddy‐Driven Upwelling of Heat and Salt in the Weddell Sea

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract In the Southern Ocean, upper ocean processes are important for water column stability, affecting air‐sea‐ice fluxes. Eddies can facilitate exchange with deeper layers, affecting heat and salt fluxes, though observations are lacking. New novel observations from an acoustically tracked profiling float, trapped within an eddy for 6 months ...
C. Hancock, G. Finucane, M. Janout, O. Boebel, K. Speer, A. L. Stewart   +5 more
wiley   +1 more source

Hybrid local-global representation learning with stochastic Gaussian classification for underwater acoustic target recognition. [PDF]

Sci Rep
Yang C, Xu Q, Feng M, Yang H, Yuan Y, Dou Y, Zhao J, Xu K.   +7 more
europepmc   +1 more source

PIN‐PMN‐PT Surface Planar Waveguides Realized via He+ Implantation

Nanophotonics, Volume 15, Issue 21, 12 November 2026.
Helium‐ion implantation turns bulk PIN‐PMN‐PT relaxor ferroelectric crystals into high‐quality planar optical waveguides. The guiding surface layer retains its single crystallinity and large electro‐optic response without postimplantation annealing, whereas a buried damage layer acts as the optical barrier.
Binbin Zhang, Qingyuan Hu, Xin Liu, Yongyong Zhuang, Yuebin Zhang, Wentao Yang, Wenxu Huang, Zhuo Xu, Xiaoyong Wei   +8 more
wiley   +1 more source

Path-Routing Convolution and Scalable Lightweight Networks for Robust Underwater Acoustic Target Recognition. [PDF]

Sensors (Basel)
Zhao Y, Chen M, Lu Y, Cheng L, Chen C, Li Y, Alkayem NF.   +6 more
europepmc   +1 more source

Rate Adaptation by Binary Regression Trees in Underwater Acoustic Channels

We analyze the rate adaptation problem for uncoded communications in underwater acoustic channels. We study two regression tree-based rate adaptation schemes. The first scheme is based on the standard CART algorithm, whereas the second utilizes Pearson's
Zappa, G., Alves, J., Paglierani, P., Pelekanakis, K., Stipanov, M., Petroccia, R., Yildirim, S.   +6 more
core  

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, Volume 38, Issue 61, 2 November 2026.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

A High-Quality Underwater Acoustic Dataset for Algorithm Development and Analysis. [PDF]

Sci Data
Lobo V, Pessanha Santos N, Moura R.
europepmc   +1 more source

Towards Open Underwater Acoustic Channel Models & Tools for Acoustic Communication (ACOMMS) Waveform-Receiver Performance Assessment

The development and adoption of underwater acoustic communication standards has long been hampered by the lack of agreed, standardized, acoustic channel models to facilitate comparative waveform testing in a controlled, fair and physically realistic ...
Mitchell, P., Dol, H., Dinale, J., Walree, P. Van, Nissen, I., Davies, J.   +5 more
core  

Photoacoustic Nanotagging for In Vivo Tracking and Optimization of Macrophage Immunotherapy in Solid Tumors

Advanced Materials, Volume 38, Issue 61, 2 November 2026.
Macrophage‐based immunotherapy for solid tumors is limited by poor tracking of cell localization and persistence. This study introduces nanotagged macrophages enabling near‐infrared photoacoustic imaging for real‐time monitoring. IFNγ‐conjugated tags enhance antitumor polarization without harming viability.
Seoyoon Song, Melissa Cadena, Myeongsoo Kim, Euisuk Chung, Jeungyoon Lee, Zlata Brushevich, Seonghun Shin, Paul S. Pelkowski, Stanislav Y. Emelianov   +8 more
wiley   +1 more source