Results 51 to 60 of about 32,987 (227)
Design of an underwater acoustic bend by pentamode metafluid
, 2017 We design an impedance matching underwater acoustic bend with pentamode microstructure. The proposed bend is assembled by pentamode lattice. The effective density and compressive mod- ulus of each unit cell can be tuned simultaneously, which are ...
Chen, Yi +4 more
core +1 more source
Scene-Driven Semantic Alignment for Generative Communication in Underwater Images
IET Signal ProcessingUnderwater images serve as one of the most intuitive media for human perception of underwater environments. However, the limited bandwidth and susceptibility to noise in underwater acoustic (UWA) channels pose significant challenges for traditional image
Yuetong Li +4 more
doaj +1 more source
A Fish-Counting Method Using Fusion of Spatial Sensing and Temporal Information
Remote SensingIn modern aquaculture, accurate and efficient fish counting is crucial for the optimization of resource management and the enhancement of production profitability.
Zhaozhi Wu +6 more
doaj +1 more source
Development of universal software radio peripheral amplifier for underwater acoustic platform using software defined radio [PDF]
, 2010 First and foremost, the development of a modem using the USRP has applications in oceanographic monitoring and communication. Improved acoustic connecting would allow more efficient transfer of information between Underwater Acoustic (UWA) equipment such
Kalash, Haydar Sabeeh
core
Epidermal Patch Technologies for Integrated Healthcare and Infection Management
Advanced Healthcare Materials, EarlyView.Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang +7 more
wiley +1 more source
International Journal of Distributed Sensor Networks, 2016 Energy-efficient data aggregation is important for underwater acoustic sensor networks due to its energy constrained character. In this paper, we propose a kind of energy-efficient data aggregation scheme to reduce communication cost and to prolong ...
Deqing Wang, Ru Xu, Xiaoyi Hu, Wei Su
doaj +1 more source
Multiuser chirp modulation for underwater acoustic channel based on VTRM
International Journal of Naval Architecture and Ocean Engineering, 2017 In this paper, an ascheme is proposed for multiuser underwater acoustic communication by using the multi-chirp rate signals. It differs from the well known TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access) or CDMA (Code ...
Fei Yuan, Qian Wei, En Cheng
doaj +1 more source
Spectrum-Aware Underwater Networks: Cognitive Acoustic Communications
IEEE Vehicular Technology Magazine, 2012 In this article, CAC to empower SUN inspiring from CR paradigm in wireless terrestrial communications is proposed. Spectrum scarcity in UAC due to the uniquely challenging underwater acoustic spectrum is discussed, and the need for spectrum-aware communication techniques is pointed out.
Bicen, A. Ozan +2 more
openaire +3 more sources
ORCA-SPOT: An Automatic Killer Whale Sound Detection Toolkit Using Deep Learning [PDF]
, 2019 Large bioacoustic archives of wild animals are an important source to identify reappearing communication patterns, which can then be related to recurring behavioral patterns to advance the current understanding of intra-specific communication of non ...
Barth, Volker +7 more
core +2 more sources
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source