Results 51 to 60 of about 217,231 (290)

Fractals in underwater acoustics [PDF]

, 1997
The concept of fractals and their applications for underwater acoustics are discussed. Waves scattering by a fractal surface is considered. Ray chaos in the case of waves propagation in inhomogeneous underwater waveguides is discussed.
Lyamshev, L. M.
core  

SotonAUV: the design and development of a small, manoeuvrable autonomous underwater vehicle [PDF]

, 2008
The University of Southampton's entry into the Student Autonomous Underwater Challenge-Europe (SAUC-E) 2007 was a custom designed and built autonomous underwater vehicle (AUV) named 'SotonAUV'.
Sharkh, S.M., Phillips, A., M Furlong, J Akhtman, Turnock, S.R., Furlong, M., A Phillips, SM Sharkh, SR Turnock, Akhtman, J., Palmer, A., Phillips, A.B., A Palmer   +12 more
core   +1 more source

Wireless Precise Manipulation of Tumor Spheroids Using a Millirobot Controlled by Permanent Magnetic Traps

Advanced Robotics Research, EarlyView.
A magnetic donut‐like millirobot is developed for label‐free pick‐and‐place of a tumor spheroid wirelessly controlled by a magnetic trap. Spheroids are important 3D multicellular culture systems that recapitulate key structural and functional features of native tissues.
Yue Gao, Moonkwang Jeong, Anni G. Muñoz, Ann‐Sophia Müller, Fangchao Long, Shengqiang Zhou, Juntian Qu, Leoni A. Kunz‐Schughart, Tian Qiu   +8 more
wiley   +1 more source

Flexible Sensors for Robotics Tactile Perception: A Review

Advanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source

Multi-Objective Deployment Optimization of Unmanned Underwater Swarms in Realistic Ocean Environments

Applied Sciences
In marine environmental monitoring, target detection, identification and positioning, and other missions, the detection performance of unmanned underwater swarms directly depends on their deployment strategy. To address complex task scenarios requiring a
Shuting Wang, Feihu Sun, Shanguo Gao, Zhanqing Pu, Wu Zhang   +4 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

XeraBorg: Neural Control of Tail‐Flick Escape for Backward Propulsion in Cyborg Crayfish

Advanced Robotics Research, EarlyView.
This work presents the first controlled tail‐flick propulsion method for the cyborg Cherax quadricarinatus. Comprehensive experiments establish a foundational framework for using the crayfish's natural escape mechanism as a locomotion strategy, expanding its potential as an underwater and amphibious mobile robot.
H. Nhan Le, Oscar J. Davis, Lachlan Fitzgerald, Robbie Wilson, Christofer Clemente, P. Ross McAree, T. Nho Do, T. Thang Vo‐Doan   +7 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

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

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