Results 41 to 50 of about 37,526 (264)

Autonomous homing and docking tasks for an underwater vehicle

open access: yes, 2009
This paper briefly introduces a strategy for autonomous homing and docking tasks using an autonomous underwater vehicle. The control and guidance based path following for those tasks are described in this work.
Wilson, P. A.
core   +1 more source

How to Chemically Protect PFAS‐Free Membranes in Fuel Cells: Radical Quenching Poly(vinylphosphonic acid) Layer

open access: yesAdvanced Functional Materials, EarlyView.
Hydrocarbon membranes are a greener alternative to PFSA in PEM fuel cells, but degrade rapidly from radical attack. We present a novel strategy using poly(vinylphosphonic acid) (PVPA) as a local radical scavenger. Incorporated as an interfacial barrier, PVPA enhances chemical stability and significantly extends membrane lifetime under accelerated ...
Hendrik Sannemüller   +6 more
wiley   +1 more source

Underwater chemical plume tracing based on partially observable Markov decision process

open access: yesInternational Journal of Advanced Robotic Systems, 2019
Chemical plume tracing based on autonomous underwater vehicle uses chemical as a guidance to navigate and search in the unknown environments. To solve the key issue of tracing and locating the source, this article proposes a path-planning strategy based ...
Jiu Hai-Feng   +3 more
doaj   +1 more source

Underwater acoustic slant range measurements related to weather and sea state [PDF]

open access: yes, 2018
Underwater range measurements are key factor in underwater acoustic positioning, used in Long Base-Line (LBL) or Ultra Short Base-Line (USBL) computing techniques. These measurements are commonly carried out through acoustic communications between modems
Aguzzi, Jacopo   +5 more
core   +1 more source

Navigating Autonomous Underwater Vehicles [PDF]

open access: yes, 2009
The Deep Submergence Lab at Woods Hole Oceanographic provided the data and images used in developing the illustrations in Fig. 2 and Fig. 3. Also, Joel Gendron illustrated Fig. 4. The publication of this chapter was supported by the Franklin W. Olin College of Engineering in Needham, Massachusetts.
openaire   +2 more sources

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao   +6 more
wiley   +1 more source

Tracking Control Based on GPS Intelligent Buoy System for an Autonomous Underwater Vehicles Under Measurement Noise and Measurement Delay

open access: yesInternational Journal of Computational Intelligence Systems, 2023
This paper deals with the real-time tracking control problem for an autonomous underwater vehicle based on an acoustic-based positioning method, i.e., the so-called GPS intelligent buoy system, which causes inevitable measurement delay.
Qiang Liu, Muguo Li
doaj   +1 more source

Progress of AUV Intelligent Swarm Collaborative Task

open access: yes水下无人系统学报, 2023
With developments in the intelligent swarm technology, the cooperation of autonomous undersea vehicle (AUV) swarms in performing underwater tasks has become an inevitable trend for the future development of such tasks. However, owing to the particularity
Qiao HU   +3 more
doaj   +1 more source

Environmental modeling with precision navigation using ROAZ autonomous surface vehicle [PDF]

open access: yes, 2012
The use of robotic vehicles for environmental modeling is discussed. This paper presents diverse results in autonomous marine missions with the ROAZ autonomous surface vehicle. The vehicle can perform autonomous missions while gathering marine data with
Almeida, Carlos   +6 more
core  

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