Results 121 to 130 of about 5,631 (303)

Trajectory Planning for Autonomous Underwater Vehicles in Uneven Environments: A Survey of Coverage and Sensor Data Collection Methods

open access: yesFuture Internet
Autonomous Underwater Vehicles (AUVs) play a central role in marine observation, inspection, and monitoring missions, where effective trajectory planning is essential for ensuring safe operation, reliable sensing, and efficient data transfer.
Talal S. Almuzaini, Andrey V. Savkin
doaj   +1 more source

A Green Amphoteric Surfactant Derived From Rapeseed Oil for Enhanced Oil Recovery From Carbonate Acidic Oil Reservoirs

open access: yesJournal of Surfactants and Detergents, EarlyView.
The Green Amphoteric Surfactant Derived From Rapeseed Oil for Enhanced Oil Recovery From Carbonate Acidic Oil Reservoirs. ABSTRACT Surfactants with both positive and negative functional groups (amphoteric or zwitterionic) are particularly advantageous in acidic oil reservoirs because they remain stable under harsh chemical conditions, tolerate acidic ...
Iman Nowrouzi   +2 more
wiley   +1 more source

Design, Development, and Testing of a Compact Underwater ROV for Inspection and Exploration

open access: yesJournal of Studies in Science and Engineering
Underwater exploration has long been a high-risk endeavor requiring trained divers and specialized equipment, creating a growing demand for low-cost, safe, and efficient alternatives.
Mohd Shahrieel Mohd Aras   +6 more
doaj   +1 more source

Path planning for an autonomous underwater vehicle in pole inspection [PDF]

open access: yes, 2018
2477-2484Present study consists a pre-mission time optimal inspection path planning for visual inspection of a well-characterized submerged vertical pole using an autonomous underwater vehicle.
Arshad, Mohd Rizal, Song, Yoong Siang
core  

Eco‐Friendly Surfactants From Pithecellobium dulce: Extraction, Characterization and Surface Activity

open access: yesJournal of Surfactants and Detergents, EarlyView.
Schematic representation of the comprehensive analysis of saponins extracted form of Pithecellobium dulce (Roxb.) Benth. ABSTRACT The widespread use of synthetic surfactants in industrial and domestic applications has raised environmental concerns due to their biodegradability and ecological issues.
Susmita Gudulkar   +4 more
wiley   +1 more source

A comparison of monitoring methods for inferring demographics of a pond‐breeding amphibian population over 14 years

open access: yesThe Journal of Wildlife Management, EarlyView.
We used 4 sampling methods to estimate or index the abundance and sex ratio of spotted salamanders (Ambystoma maculatum) over 14 years. The present study highlights the importance of considering individual heterogeneity in capture probability when estimating abundance of pond‐breeding amphibians from capture data with imperfect detection. Abstract Long‐
Patrick D. Moldowan   +3 more
wiley   +1 more source

Disrupting the herd: Recreational boating alters group dispersion within beluga whale herds

open access: yesThe Journal of Wildlife Management, EarlyView.
Recreational boating in beluga habitat remains poorly documented. Using land‐based observations in the Saguenay Fjord (Quebec, Canada), we show that increasing recreational boat numbers are associated with a higher probability of changes in beluga herd dispersion, suggesting behavioral disturbance and the need to integrate recreational boating into ...
Camille Kowalski   +4 more
wiley   +1 more source

A machine learning assisted method for rapidly annotating benthic megafauna in large volumes of marine imagery

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Recent technological advancements have rapidly expanded our capacity for collecting image data in the marine environment, but processing images into meaningful ecological metrics remains a manual, time‐consuming, and biased process. This is particularly challenging with electro‐optical cabled imaging systems which generate images at a rate ...
Katharine T. Bigham, Ada Carter
wiley   +1 more source

Reinforcement learning for autonomous underwater vehicles (AUVs): navigating challenges in dynamic and energy-constrained environments

open access: yesRobotics: Integration, Manufacturing and Control
Autonomous Underwater Vehicles (AUVs) are essential for underwater exploration, inspection, and environmental surveillance. Nevertheless, navigation, obstacle avoidance, and energy efficiency are greatly hindered by the ever-changing underwater ...
Mohab M. Eweda, Karim ElNaggar
doaj   +1 more source

Development of dam inspection underwater robot

open access: yesProceedings of International Conference on Artificial Life and Robotics, 2019
Hirai, Hiroyasu, Ishii, Kazuo
openaire   +1 more source

Home - About - Disclaimer - Privacy