Results 51 to 60 of about 4,731 (309)

Flexible large-area ultrasound arrays for medical applications made using embossed polymer structures

Nature Communications
With the huge progress in micro-electronics and artificial intelligence, the ultrasound probe has become the bottleneck in further adoption of ultrasound beyond the clinical setting (e.g. home and monitoring applications).
Paul L. M. J. van Neer, Laurens C. J. M. Peters, Roy G. F. A. Verbeek, Bart Peeters, Gerard de Haas, Lars Hörchens, Laurent Fillinger, Thijs Schrama, Egon J. W. Merks-Swolfs, Kaj Gijsbertse, Anne E. C. M. Saris, Moein Mozaffarzadeh, Jan M. Menssen, Chris L. de Korte, Jan-Laurens P. J. van der Steen, Arno W. F. Volker, Gerwin H. Gelinck   +16 more
doaj   +1 more source

Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders

Frontiers in Remote Sensing
This study presents a detailed analysis of Angular Response Curves (ARC) extracted from a multi-spectral seabed backscatter dataset utilizing both calibrated single-beam (SBES) and multibeam echosounders (MBES).
Ridha Fezzani, Laurent Berger, Naig Le Bouffant, Xavier Lurton   +3 more
doaj   +1 more source

Underwater Acoustic Research Trends with Machine Learning: Passive SONAR Applications

한국해양공학회지, 2020
Underwater acoustics, which is the domain that addresses phenomena related to the generation, propagation, and reception of sound waves in water, has been applied mainly in the research on the use of sound navigation and ranging (SONAR) systems for ...
Haesang Yang, Keunhwa Lee, Youngmin Choo, Kookhyun Kim   +3 more
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

Analysis for Underwater Sound on Natural River Habitat

E3S Web of Conferences, 2018
A riffle-pool structure is a representative physical structure of bed in rivers. The change in the physical parameter of the habitat could lead to changes in the sound environment of rivers, which are expressed by underwater acoustics.
Gu Jung-Eun, Jung Sang Hwa, Kang Joongu, Woo Hyoseop   +3 more
doaj   +1 more source

Numerical modeling and simulation technique in time-domain for multibeam echo sounder

International Journal of Naval Architecture and Ocean Engineering, 2018
A Multibeam Echo Sounder (MBES) is commonly used for rapid seafloor mapping. We herein present a time-domain integrated system simulation technique for MBES development. The Modeling and Simulation (M&S) modules consist of four parts: sensor array signal
Donghwan Jung, Jeasoo Kim, Gihoon Byun
doaj   +1 more source

A Feature-Level Fusion-Based Target Localization Method with the Hough Transform for Spatial Feature Extraction

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, Shiliang Fang, Yixin Yang, Xionghou Liu, Mengyuan Wang   +4 more
doaj   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 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

Underwater Acoustic Research Trends with Machine Learning: Active SONAR Applications

한국해양공학회지, 2020
Underwater acoustics, which is the study of phenomena related to sound waves in water, has been applied mainly in research on the use of sound navigation and range (SONAR) systems for communication, target detection, investigation of marine resources and
Haesang Yang, Sung-Hoon Byun, Keunhwa Lee, Youngmin Choo, Kookhyun Kim   +4 more
doaj   +1 more source