Results 61 to 70 of about 1,228 (176)
Virtual Elastic Tether: A New Approach for Multi‐Agent Navigation in Confined Aquatic Environments
ABSTRACT Underwater navigation is a challenging area in the field of mobile robotics due to inherent constraints in self‐localization and communication in underwater environments. Some of these challenges can be mitigated by using collaborative multi‐agent teams.
Kanzhong Yao +5 more
wiley +1 more source
Coastal Marine Carbon and Air‐Sea Fluxes Quantified From pH Sensors on an Extended AUV Deployment
Abstract For the first time, the Autosub Long Range (ALR) completed a fully autonomous, long‐distance (2,000 km) scientific mission, delivering new insight into coastal carbonate dynamics and air‐sea CO2 ${\text{CO}}_{2}$ fluxes. Equipped with a suite of oceanographic sensors, including a Lab‐on‐Chip (LOC) pH sensor and a Sea‐Bird SeaFET pH sensor, the
Emily M. Hammermeister +7 more
wiley +1 more source
Seafloor Displacements Across the Mid‐Ocean Ridge Eruption Cycle Modulated by Mush Zone Viscosity
Abstract Mid‐ocean ridges (MORs) are active volcanic systems where axial magma lenses (AMLs) are replenished on decadal time scales, enabling frequent dike intrusions. The associated seafloor deformation, however, remains scarcely understood. Here we assess this deformation by simulating cycles of steady AML inflation followed by instantaneous dike ...
H. Boulze, J.‐A. Olive
wiley +1 more source
Aiming at the difficulty of realizing full-coverage path planning in a multi-AUV collaborative search, a multi-AUV full-coverage path-planning algorithm based on intuitionistic fuzzy decision-making is proposed. First, the state space model of the search
Xiaomeng Zhang +5 more
doaj +1 more source
Abstract Mid‐ocean ridges, the Earth's most extensive volcanic system, exhibit unique characteristics in sediment‐dominant environments. Thick sediment cover insulates the crust and channels fluid along pathways that can lead to the formation of distinct crustal alteration patterns, exceptionally large mineral deposits, and specialized chemosynthetic ...
Christopher Galley +8 more
wiley +1 more source
This paper investigates consensus control in heterogeneous and uncertain multiple autonomous underwater vehicle (AUV) systems under implicit reduced visibility conditions.
Zixuan Li +3 more
doaj +1 more source
The Structure and Lifecycle of Stratified Mixing by Shear Instabilities in Continuously Forced Flows
Abstract The turbulent energy cascade of ocean mixing remains poorly understood at geophysically large Reynolds numbers (Re $\mathrm{R}\mathrm{e}$). Here we propose a new conceptual model for the structure of small‐scale mixing grounded in high‐resolution multibeam echosounding observations from the mouth of the Connecticut River, a shallow salt‐wedge ...
Adrien Lefauve +4 more
wiley +1 more source
Modeling of Autonomous Underwater Vehicles with Multi-Propellers Based on Maximum Likelihood Method
The hydrodynamic characteristics of multi-propeller autonomous underwater vehicles (AUV) is usually complicated and it is difficult to obtain an accurate mathematical model. A modeling method based on CFD calculation and maximum likelihood identification
Feiyan Min, Guoliang Pan, Xuefeng Xu
doaj +1 more source
Penguins on the Move: Mapping Priority Penguin Habitat Areas Under Climate Change
ABSTRACT Aim To identify and map Priority Penguin Habitat Areas (PPHAs), defined as marine regions that are environmentally suitable for penguins under present and future climates, in order to inform climate‐smart conservation planning across Southern Hemisphere. Location Marine realms of the Southern Hemisphere. Methods We modelled occurrence data for
Francisco Ramírez +6 more
wiley +1 more source
A Novel Cooperative Navigation Algorithm Based on Factor Graph and Lie Group for AUVs
Traditional cooperative navigation algorithms for multiple AUVs are typically designed for a single specific configuration, such as parallel or leader-slave. This paper proposes a novel cooperative navigation algorithm based on factor graph and Lie group
Jiapeng Liu, Xiaodong Bu, Chao Wu
doaj +1 more source

