Results 31 to 40 of about 3,784 (259)

Uncertainty-aware framework for reliable underwater bridge inspection with interpretable defect attribution

Developments in the Built Environment
Underwater bridge inspection is often degraded by environmental interference such as turbidity and illumination distortion, resulting in unreliable defect predictions and potentially misleading decisions.
Weihao Sun, Shitong Hou, Xiao Tan, Chen Fang, Zhishen Wu, Lihai Zhang   +5 more
doaj   +1 more source

Underwater Robotics: Surface Cleaning Technics, Adhesion and Locomotion Systems

International Journal of Advanced Robotic Systems, 2016
Underwater robots are being developed for various applications ranging from inspection to maintenance and cleaning of submerged surfaces and constructions. These platforms should be able to travel on these surfaces.
Houssam Albitar, Kinan Dandan, Anani Ananiev, Ivan Kalaykov   +3 more
doaj   +1 more source

The Use of Terrestrial and Maritime Autonomous Vehicles in Nonintrusive Object Inspection

Sensors, 2022
Traditional nonintrusive object inspection methods are complex or extremely expensive to apply in certain cases, such as inspection of enormous objects, underwater or maritime inspection, an unobtrusive inspection of a crowded place, etc. With the latest
Dmytro Mamchur, Janis Peksa, Antons Kolodinskis, Maksims Zigunovs   +3 more
doaj   +1 more source

Sustainable Plant‐Based Water Repellent Coatings Using Hydrophobic Pine and Palm Pollen

Advanced Materials Interfaces, EarlyView.
A novel formulation strategy for creating superhydrophobic coatings using plant‐derived waxes and chemically treated pine and palm pollen. By employing acid modification, the hydrophobicity of the pollen surface is enhanced, resulting in water contact angles exceeding 150°.
Brenda Resendiz‐Diaz, Emma Sadler, Colin Roger Crick   +2 more
wiley   +1 more source

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

Advanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich, Florian Hartmann, Herbert Shea   +2 more
wiley   +1 more source

Inspection of Undersea Oil and Gas Pipelines by New Variable Thrust Vector Underwater Robotic Platform

نشریه مهندسی دریا, 2017
This paper presents a special underwater robot for subsea pipelines inspection which is used to transport extracted oil and gas from oil platforms to onshore facilities. Due to the high pressure in the deep sea and the long pipelines, it is impossible to
Ali Kadkhodaei, Reza Hasanzadeh Ghasemi
doaj  

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +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

Autonomous Inspection Strategies and Simulation for Large Aquaculture Net Cages Based on Deep Visual Perception

Journal of Marine Science and Engineering
In China, a single large deep-sea net cage can raise nearly one million fish. If the fish net is damaged and the fish escape, it can lead to significant economic losses and ecological damage.
Keru Cai, Cong Li, Qian Sun, Yijun Liu, Hongyi Ye, Yuwang Xu   +5 more
doaj   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

Advanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source