Results 111 to 120 of about 35,722 (281)

Autonomous Underwater Vehicle control

open access: yesInstrumentation viewpoint, 2005
In this paper the system control design stages for an autonomous underwater vehicle are presented. The vehicle must be able to sail on sea surface, following a path without losing its route and once a position is reached, a dive following a perpendicular path to the surface is carried out. A two level system control are proposed. The primary level will
Vidal Morató, Jordi   +2 more
openaire   +2 more sources

Think Global, Act Local? Fortune 500 Business Strategies for Sustainable Cities and Communities (SDG 11)

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The role of business towards achieving the 17 Sustainable Development Goals (SDGs) has been well established. However, SDG contextualization continues to pose a conundrum, particularly for firms operating in multiple contexts. This becomes even more problematic in the case of SDG 11, the only goal in the sustainable development agenda directly
Andreas Georgiou
wiley   +1 more source

Modeling and Control of Negative-Buoyancy Tri-Tilt-Rotor Autonomous Underwater Vehicles Based on Immersion and Invariance Methodology

open access: yesApplied Sciences, 2018
Spot hover and high speed capabilities of underwater vehicles are essential for ocean exploring, however, few vehicles have these two features. Moreover, the motion of underwater vehicles is prone to be affected by the unknown hydrodynamics.
Tao Wang, Chao Wu, Jianqin Wang, Tong Ge
doaj   +1 more source

An Underwater SLAM System using Sonar, Visual, Inertial, and Depth Sensor

open access: yes, 2019
This paper presents a novel tightly-coupled keyframe-based Simultaneous Localization and Mapping (SLAM) system with loop-closing and relocalization capabilities targeted for the underwater domain.
Li, Alberto Quattrini   +2 more
core   +1 more source

When Do Robots Go Green? Unveiling Mechanisms, Thresholds, and Spillovers of Industrial Robotics on Global Ecological Capacity

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This paper examines the relationship between industrial robotics adoption and ecological capacity, measured by biocapacity, using panel data from 50 countries over the period 2000–2024. We investigate the transmission mechanisms, non‐linearities, spatial spillovers, and heterogeneity characterizing this relationship.
Brahim Bergougui   +1 more
wiley   +1 more source

Phytoplankton Hotspot Prediction With an Unsupervised Spatial Community Model

open access: yes, 2017
Many interesting natural phenomena are sparsely distributed and discrete. Locating the hotspots of such sparsely distributed phenomena is often difficult because their density gradient is likely to be very noisy.
Dudek, Gregory   +3 more
core   +1 more source

Fabrication, Modification, and Applications of Functional Aerogels: A Review

open access: yesCarbon and Hydrogen, EarlyView.
Advances in aerogel materials synthesis modification properties applications and future perspectives. ABSTRACT Aerogels, characterized by a highly porous three‐dimensional nanoscale structure, possess exceptional properties such as ultra‐low density, high specific surface area, and remarkably low thermal conductivity.
Jinshuo Zhang   +3 more
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

Coordination of Multiple Biomimetic Autonomous Underwater Vehicles Using Strategies Based on the Schooling Behaviour of Fish

open access: yesRobotics, 2016
Biomimetic Autonomous Underwater Vehicles (BAUVs) are Autonomous Underwater Vehicles (AUVs) that employ similar propulsion and steering principles as real fish.
Jonathan McColgan, Euan W. McGookin
doaj   +1 more source

An Intervention-AUV learns how to perform an underwater valve turning

open access: yes, 2014
Intervention autonomous underwater vehicles (I-AUVs) are a promising platform to perform intervention task in underwater environments, replacing current methods like remotely operate underwater vehicles (ROVs) and manned sub-mersibles that are more ...
Carrera, A   +4 more
core   +1 more source

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