Results 61 to 70 of about 3,810 (225)

Conceptual design of a MW heat pipe reactor

Nuclear Engineering and Technology
–In recent years, unmanned underwater vehicles (UUV) have been vigorously developed, and with the continuous deepening of marine exploration, traditional energy can no longer meet the energy supply.
Yunqin Wu, Youqi Zheng, Qichang Chen, Jinming Li, Xianan Du, Yongping Wang, Yushan Tao   +6 more
doaj   +1 more source

Path Following, Obstacle Detection and Obstacle Avoidance for Thrusted Underwater Snake Robots

Frontiers in Robotics and AI, 2019
The use of unmanned underwater vehicles is steadily increasing for a variety of applications such as mapping, monitoring, inspection and intervention within several research fields and industries, e.g., oceanography, marine biology, military, and oil and
Eleni Kelasidi, Eleni Kelasidi, Signe Moe, Signe Moe, Kristin. Y. Pettersen, Anna M. Kohl, Pål Liljebäck, Jan Tommy Gravdahl, Jan Tommy Gravdahl   +8 more
doaj   +1 more source

Application of Fuzzy Theory and Optimum Computing to the Obstacle Avoidance Control of Unmanned Underwater Vehicles

Applied Sciences, 2020
Autonomous underwater vehicles and remotely operated vehicles (ROVs) are unmanned underwater vehicles widely used in marine environments. Establishing an efficient obstacle avoidance approach in underwater environments remains a challenge for these ...
Shihming Chen, Tsungyin Lin, Kaiyi Jheng, Chengmao Wu   +3 more
doaj   +1 more source

Unmanned Aerial Systems for Corrosion Detection: Multi‐Sensor Technologies, Challenges, and Opportunities for Next‐Generation Inspection

Quality and Reliability Engineering International, EarlyView.
ABSTRACT Corrosion remains a critical threat to the integrity and service life of infrastructure in industries such as oil, gas, construction, renewable energy, and transportation. Traditional inspection methods, being labor‐intensive, hazardous, and often subjective, fall short in addressing modern inspection demands.
Alhossein Alharbi, Yunes Alqudsi, Alhasan Ali Alharbi, Mohammed Basheer Mohiuddin   +3 more
wiley   +1 more source

A survey on terrain based navigation for AUVs [PDF]

, 2010
Terrain Based Navigation (TBN) is a method rootedto the early cruise missile navigation systems, when GPS wasnot yet available. For decades, TBN has been applied as acomplementary system to INS navigation for Unmanned AerialVehicles (UAV).
Petillot, Yvan, Wilson, P.A., Philip Wilson, Petillot, Yvan; id_orcid, Yvan Petillot, Wilson, P. A., Carreno, Sebastian, Ridao, Pere, Sebastian Carreno, Wilson, Philip, Pere Ridao   +10 more
core   +1 more source

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source

On the reliability of the Autosub autonomous underwater vehicle [PDF]

, 2003
As autonomous underwater vehicles (AUVs) enter operational service an assessment of their reliability is timely. Using the Autosub AUV as an example, several design issues affecting reliability are discussed, followed by an analysis of recorded faults ...
Stevenson, P., Challenor, P.G., P. Stevenson, N. W. Millard, Griffiths, G., G. Griffiths, McPhail, S.D., Millard, N.W., S. D. Mcphail   +8 more
core  

A Matlab-based application for enhanced controller tuning in ArduSub ROVs: ATControlROV

SoftwareX
Since the 20th century, underwater research has grown exponentially due to technological advances and financial support from governments and companies.
Ana Isabel Vázquez Mejías, Juan Carlos de la Torre, Mariano Marcos-Pérez, Andrés Yáñez Escolano, Guillermo Bárcena-González   +4 more
doaj   +1 more source

Redefining Optimal Coverage Path Planning for FLS‐Equipped AUVs With Deep Reinforcement Learning

Journal of Field Robotics, EarlyView.
ABSTRACT Autonomous Underwater Vehicles (AUVs) have emerged as indispensable tools for a variety of subsea tasks, from habitat monitoring and seabed mapping to infrastructure inspection and mine countermeasures. A fundamental challenge in this field is Coverage Path Planning (CPP), the problem of ensuring complete and efficient area coverage.
Lorenzo Cecchi, Alberto Topini, Alessandro Bucci, Alessandro Ridolfi   +3 more
wiley   +1 more source

Novel platform for ocean survey and autonomous sampling using multi-agent system [PDF]

, 2013
In-situ surveying and sampling of ocean environments provides critical data for laboratory work and oceanographic research. However, sampling a time-varying ocean field is often time and resource limited-meaning that samples often miss the features of ...
Varghese, Tony, Gabriel D. Weymouth, Weymouth, G.D., Tawfiq Taher, Taher, Tawfiq, Tony Varghese   +5 more
core   +1 more source