Results 61 to 70 of about 217,231 (290)
Remote Sensing, 2023 Traditional two-step localization methods and direct localization methods have practical problems when they are used for underwater acoustic source localization.
Lu Wang +4 more
doaj +1 more source
, 2015 Acoustics is the science and study of sound. In this book, we concentrate on sound in air at audible frequencies. The field of acoustics extends to include many related topics such as environmental acoustics, musical acoustics, architectural acoustics ...
Thompson, David, Nelson, Philip
core +1 more source
Advanced Science, EarlyView.Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas +6 more
wiley +1 more source
Underwater broadband sound insulation with chiral spiral structures
AIP Advances, 2020 Low-frequency noise has been a long-standing issue in the context of a complex underwater environment. While theory related to low-frequency sound insulation in air has been developed, systematic research on underwater sound insulation has not yet been ...
Huilan Wu, Chengpeng Hao, Han Zhang
doaj +1 more source
Harnessing Phase Separation for the Development of High‐Performance Hydrogels
Advanced Science, EarlyView.ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao +3 more
wiley +1 more source
Bistable Networks Enable Complex Shape Changes
Advanced Science, EarlyView.Transition‐controlled metamaterials are networks of bistable mechanical memory that store local binary states and express them as global shape change. By decoupling low‐force programming from high‐force holding, a single lattice is reconfigured into distinct 2D profiles and 3D surfaces without continuous actuation, enabling reusable morphing materials ...
Sawyer Thomas, Jeffrey Lipton
wiley +1 more source
Block sparse Bayesian learning for broadband bearing estimation in shallow-water waveguides [PDF]
JASA Express LettersFor horizontal arrays in shallow-water waveguides, methods based on the plane wave assumption often produce biased bearing estimates because of multimode propagation.
Jiarui Yin +5 more
doaj +1 more source
Adaptive Underwater Acoustic Communications [PDF]
, 2010 Underwater wireless networks consist of mobile and static nodes, which usually communicate using the acoustic channel since radio transmissions attenuate rapidly and optical communication is only suitable for short distances. The underwater acoustic channel is plagued with issues of high transmission power requirements, rapidly changing channel ...
Anuj Sehgal, Jürgen Schönwälder
openaire +1 more source
Advanced Science, EarlyView.Freestanding hierarchical‐porous BCZT thin films integrate a compliant porous surface with a dense piezoceramic backbone to balance mechanical reliability, voltage sensitivity, and acoustic coupling. The films enable stable wearable pulse‐wave monitoring and enhanced tissue‐coupled ultrasonic energy harvesting, offering a promising route toward soft ...
Zifan Li +14 more
wiley +1 more source
International Conference on Underwater Acoustics (ICUA) 2024 [PDF]
The four-day International Conference on Underwater Acoustics 2024 was held in June at the University of Bath. The packed programme included speakers from a variety of nations and institutions, from both academia and industry but also included plenty of ...
Banda, Nikhil +2 more
core +4 more sources