Results 61 to 70 of about 281,745 (348)
Underwater Survey for Oil and Gas Industry: A Review of Close Range Optical Methods
Remote Sensing, 2021 In both the industrial and scientific fields, the need for very high-resolution cartographic data is constantly increasing. With the aging of offshore subsea assets, it is very important to plan and maintain the longevity of structures, equipment, and ...
Bertrand Chemisky +3 more
doaj +1 more source
Octopus-inspired adhesive skins for intelligent and rapidly switchable underwater adhesion
Science Advances, 2022 The octopus couples controllable adhesives with intricately embedded sensing, processing, and control to manipulate underwater objects. Current synthetic adhesive–based manipulators are typically manually operated without sensing or control and can be ...
Sean T. Frey +7 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong +11 more
wiley +1 more source
Sensors, 2019 The use of robotics in harsh environments, such as nuclear decommissioning, has increased in recent years. Environments such as the Fukushima Daiichi accident site from 2011 and the Sellafield legacy ponds highlight the need for robotic systems capable ...
Matthew Nancekievill +10 more
doaj +1 more source
Passive Tracking of Multiple Underwater Targets in Incomplete Detection and Clutter Environment
Entropy, 2021 A major advantage of the use of passive sonar in the tracking multiple underwater targets is that they can be kept covert, which reduces the risk of being attacked.
Xiaohua Li, Bo Lu, Wasiq Ali, Haiyan Jin
doaj +1 more source
Recent Trends in Underwater Visible Light Communication (UVLC) Systems
IEEE Access, 2022 In recent years, underwater visible light communication (UVLC) has become a potential wireless carrier candidate for signal transmission in highly critical, unknown, and acrimonious water mediums such as oceans.
Mohammad Furqan Ali +2 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat +6 more
wiley +1 more source
Underwater Multi-Vehicle Trajectory Alignment and Mapping Using Acoustic and Optical Constraints
Sensors, 2016 Multi-robot formations are an important advance in recent robotic developments, as they allow a group of robots to merge their capacities and perform surveys in a more convenient way.
Ricard Campos, Nuno Gracias, Pere Ridao
doaj +1 more source
Generating and Detecting Broad-Band Underwater Multiple OAMs Based on Water-Immersed Array
IEEE Access, 2020 In this paper, we focus on the generation of broadband underwater vortex waves carrying multiple OAMs. Based on a wideband underwater antenna, a water-immersed horn antenna array is designed and tested.
Yang Yang +10 more
doaj +1 more source
Performance Evaluation of Routing Protocols for Underwater Wireless Sensor Networks
Journal of Marine Science and Engineering, 2022 Underwater Wireless Sensor Networks (UWSNs) are emerging technology for disclosing multiple applications, such as oil, earth quick, and marine environments. All sensor nodes deployed in UWSNs operate through limited power batteries.
Taj Rahman +5 more
doaj +1 more source