Results 31 to 40 of about 12,135 (235)

Metrological studies of the characteristics of multilayer surface coatings using synchrotron radiation

open access: yesРоссийский технологический журнал, 2021
The investigations of multilayer surface nanostructures characteristics was performed with synchrotron radiation sources, characterized by an intensive, calculated continuum. It plays an important role in nanoelectronics metrological base.
A. S. Sigov   +4 more
doaj   +1 more source

Docking experiment of underwater vehicle by dual-eye visual servoing in sea

open access: yesNihon Kikai Gakkai ronbunshu, 2017
A variety of robots has been studied and developed for undersea exploration. One of the applications for undersea exploration is mining of undersea resources such as methane hydrate and rare metal by Autonomous Underwater Vehicle (AUV).
Kenta YONEMORI   +4 more
doaj   +1 more source

Three-Dimensional Underwater Path Planning Based on Modified Potential Field Algorithm in Time-Varying Current

open access: yesPolish Maritime Research, 2023
The article addresses the three-dimensional (3D) underwater path planning problem of an autonomous underwater vehicle (AUV) in a time-varying current.
Wang Shasha   +3 more
doaj   +1 more source

Design and Experiment of a Plateau Data-Gathering AUV

open access: yesJournal of Marine Science and Engineering, 2019
The design, control, and implementation of an autonomous underwater vehicle (AUV) for collecting hydrological information from plateau rivers and lakes are presented in this paper.
Hao Xu   +5 more
doaj   +1 more source

A Unified Approach for Underwater Homing and Docking of over-Actuated AUV

open access: yesJournal of Marine Science and Engineering, 2021
During the implementation of time-consuming tasks such as underwater observation or detection, AUV has to face a difficult and urgent problem that its working duration is greatly shortened by the limited energy stored in the battery device.
Mingjiu Zuo   +3 more
doaj   +1 more source

Risk Analysis for Autonomous Underwater Vehicle Operations in Extreme Environments [PDF]

open access: yes, 2010
Autonomous underwater vehicles (AUVs) are used increasingly to explore hazardous marine environments. Risk assessment for such complex systems is based on subjective judgment and expert knowledge as much as on hard statistics.
Brito, M.   +5 more
core   +1 more source

A Technique to Navigate Autonomous Underwater Vehicles Using a Virtual Coordinate Reference Network during Inspection of Industrial Subsea Structures

open access: yesRemote Sensing, 2022
Industrial subsea infrastructure inspections using autonomous underwater vehicles (AUV) require high accuracy of AUV navigation relative to the objects being examined.
Valery Bobkov   +2 more
doaj   +1 more source

Evaluating the use of lithium sulphur batteries for a deep ocean pressure balanced AUV energy source [PDF]

open access: yes, 2016
Lithium sulphur batteries offer a huge potential advantage over established AUV energy sources, such as Lithium polymer or Lithium ion batteries. The high energy density and low specific gravity make them an ideal choice for pressure balanced systems ...
Ashley Cookey   +9 more
core   +1 more source

Optimization of autonomous underwater vehicle mission planning process [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
This article presents the information concerning aspects of the autonomous underwater vehicle (AUV) mission planning process, emphasizing maritime security monitoring and surveillance, and using side-looking sonars as a primary data source.
Wojciech Wawrzyński   +3 more
doaj   +1 more source

A Markov Chain state transition approach to establishing critical phases for AUV reliability [PDF]

open access: yes, 2011
The deployment of complex autonomous underwater platforms for marine science comprises a series of sequential steps. Each step is critical to the success of the mission. In this paper we present a state transition approach, in the form of a Markov chain,
Griffiths, Gwyn   +3 more
core   +1 more source

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