Results 81 to 90 of about 466,074 (296)

An Autonomous Underwater Vehicle Navigation Technique for Inspection and Data Acquisition in UWSNs

IEEE Access
This article introduces an innovative approach to the navigation of autonomous underwater vehicles (AUVs) in inspection and data acquisition missions within underwater wireless sensor networks (UWSNs).
Arif Wibisono, Md. Jalil Piran, Hyoung-Kyu Song, Byung Moo Lee   +3 more
doaj   +1 more source

Colour reconstruction of underwater images [PDF]

, 2017
Objects look very different in the underwater environment compared to their appearance in sunlight. Images with correct colouring simplify the detection of underwater objects and may allow the use of visual SLAM algorithms developed for land-based robots
Wojciech Kowalczyk, Kowalczyk, Wojciech, Julian Hoth, Hoth, Julian   +3 more
core   +1 more source

Real-Time Seafloor Segmentation and Mapping [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Posidonia oceanica meadows are a species of seagrass highly dependent on rocks for their survival and conservation. In recent years, there has been a concerning global decline in this species, emphasizing the critical need for efficient monitoring and ...
M. Grimaldi, M. Grimaldi, N. Alkaabi, N. Alkaabi, F. Ruscio, F. Ruscio, S. Realpe Rua, R. Garcia, N. Gracias   +8 more
doaj   +1 more source

Vine‐Inspired Soft Robotics: Materials, Actuations, and Emerging Applications

Advanced Science, EarlyView.
Vine‐inspired robots grow from the tip, enabling navigation through confined spaces with minimal disturbance. This Review summarizes material and actuation strategies for vine‐inspired growth, key functions including steering, retraction, attachment, branching, and variable stiffness, and emerging applications spanning medical intervention, confined ...
Jiahao Wu, Xingyun Liu, Fangzhou Wang, Huili Ren, Chaojun Zhang, Ziyu Ren, Zunqi Liu, Jing Li   +7 more
wiley   +1 more source

3D data processing for underwater inspection and monitoring [PDF]

, 2015
Ever-growing attention has been given to the monitoring and inspection of underwater man-made structures for scientific and technical purposes. However, most of the related tasks are still involving the use of scuba divers. In this paper, we propose a
Prados, Ricard, Garcia, Rafael, Nicosevici, Tudor   +2 more
core  

A Biomimetic Solvatochromic Chip With Optimized Chemical Diversity for On‐Site Liquid Identification

Advanced Science, EarlyView.
A compact biomimetic photonic‐gustatory chip uses Hansen‐solubility‐parameter‐guided solvatochromic disks to create distinct color patterns in organic liquids. An optimized four‐disk array distinguishes solvent types, ratios, homologues, isomers, and alcoholic beverages. Coupled with smartphone imaging and deep learning, it identifies 80 liquid classes
Jintao Zhang, Hao Ouyang, Yin Cheng, Nuoye Xiong, Xunchi Ma, Xueling Li, Guangming Zhu, Liang Zhang, Jing Sun, Ranran Wang   +9 more
wiley   +1 more source

A highly mobile ducted underwater robot for subsea infrastructure inspection

, 2016
With the repaid development of different kinds of offshore structures, there is a great need for the frequent inspection of them. Underwater robot is very qualified of these tasks especially on such occasions that cost and risk are the critical factors ...
Zheng R(郑荣), Yang Y(杨翊), Ma YT(马艳彤), Ye RD(叶瑞夺), Geng LB(耿令波)   +4 more
core  

Astrocyte‐Associated ABCA1/APOE Responses Accompany Hippocampal Lipid Remodeling and Ectopic Neuronal Accumulation During Epileptogenesis

Advanced Science, EarlyView.
During kainic acid‐induced epileptogenesis, astrocyte‐associated ATP‐binding cassette transporter A1 (ABCA1) and apolipoprotein E (APOE) responses accompany ectopic neurons and exploratory lipid alterations. In separate cohorts, bexarotene pretreatment and treatment on days 14–21 are associated with fewer ectopic hilar neurons and lower chronic seizure
Lu Chen, Xiao‐Rui Shi, Jia‐Yi Chen, Ying‐Ting Wang, Le Du, Yang Ni, Jun‐Min Chen, An‐Chen Guo, Qian Wu, Jian‐Ping Wu, Qun Wang   +10 more
wiley   +1 more source

Underwater Inspection of Submerged Elements in Masonry Bridges and Other Old Civil Structures Using Drones

Buildings
In previous studies, drones have been used to carry out visual inspections of heritage elements. To complement the information obtained with common drones, a new underwater drone model is proposed for the specific case of old bridges.
Rubén Rodríguez Elizalde
doaj   +1 more source

Active Classification: Theory and Application to Underwater Inspection [PDF]

, 2016
We discuss the problem in which an autonomous vehicle must classify an object based on multiple views. We focus on the active classification setting, where the vehicle controls which views to select to best perform the classification. The problem is formulated as an extension to Bayesian active learning, and we show connections to recent theoretical ...
Geoffrey A. Hollinger, Urbashi Mitra, Gaurav S. Sukhatme   +2 more
openaire   +3 more sources