Results 51 to 60 of about 687 (180)

Automated and Efficient Sampling of Chemical Reaction Space

Advanced Science, Volume 12, Issue 9, March 6, 2025.
The paper presents an efficient method for sampling chemical reaction space to train machine learning interatomic potentials (MLIPs). By combining fast tight‐binding calculations with selective high‐level refinement, the approach generates diverse datasets capturing both equilibrium and reactive regions.
Minhyeok Lee, Umit V. Ucak, Jinyoung Jeong, Islambek Ashyrmamatov, Juyong Lee, Eunji Sim   +5 more
wiley   +1 more source

UUV Cluster Distributed Navigation Fusion Positioning Method with Information Geometry

Journal of Marine Science and Engineering
The development and utilization of marine resources by humanity are increasing rapidly, and a single unmanned underwater vehicle (UUV) is insufficient to meet the demands of ocean exploitation.
Lingling Zhang, Shijiao Wu, Chengkai Tang, Hechen Lin   +3 more
doaj   +1 more source

Research on the Combined Detection of Magnetic Anomaly and Shaft‐Rate Magnetic Field Signals

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
Magnetic anomaly signal, shaft‐rate magnetic field signal, combined detection. ABSTRACT Due to the stable propagation of magnetic signals in ocean and air, magnetic detection technology has become an effective means for nonacoustic detection. The magnetic anomaly signal and shaft‐rate magnetic signal radiated by underwater vehicles are currently the ...
Honglei Wang, Chunxu Jiang, Zhixiang Feng   +2 more
wiley   +1 more source

Development of a Cost-Effective UUV Localisation System Integrable with Aquaculture Infrastructure

Journal of Marine Science and Engineering
In many aquaculture farms, Unmanned Underwater Vehicles (UUVs) are being deployed to perform dangerous and time-consuming repetitive tasks (e.g., fish net-pen visual inspection) on behalf of or in collaboration with farm operators.
Thein Than Tun, Loulin Huang, Mark Anthony Preece   +2 more
doaj   +1 more source

Pose‐graph underwater simultaneous localization and mapping for autonomous monitoring and 3D reconstruction by means of optical and acoustic sensors

Journal of Field Robotics, Volume 41, Issue 8, Page 2543-2563, December 2024.
Abstract Modern mobile robots require precise and robust localization and navigation systems to achieve mission tasks correctly. In particular, in the underwater environment, where Global Navigation Satellite Systems cannot be exploited, the development of localization and navigation strategies becomes more challenging.
Alessandro Bucci, Alessandro Ridolfi, Benedetto Allotta   +2 more
wiley   +1 more source

USV/UUV Cooperative Navigation Algorithm Based on Moving Long Baseline and Navigation Error Correction

水下无人系统学报
Unmanned undersea vehicles(UUVs) undergo a cumulative increase of inertial navigation error caused by long-term cooperative movement. In order to reduce the relative navigation errors between unmanned surface vessels(USVs) and UUVs and improve the ...
Huifeng JIAO, Chen YE, Wenchu WANG, Zhaoyong MAO, Yintao WANG   +4 more
doaj   +1 more source

Model predictive control‐based tracking controller for hybrid‐driven underwater legged robot

IET Control Theory &Applications, Volume 18, Issue 18, Page 2646-2659, December 2024.
To address the tracking problem of the hybrid‐driven underwater legged robot, we propose a control strategy that decomposed the whole tracking control system into body‐level and limb‐level subsystems. The body‐level subsystem used a central pattern generator‐based controller to plan suitable gait, and the limb‐level subsystem used a controller based on
Guangjie Zhang, Weisheng Yan, Rongxin Cui, Feiyu Ma   +3 more
wiley   +1 more source

Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish

Advanced Science, Volume 11, Issue 44, November 26, 2024.
Blind Chinese cavefish have evolved a unique head horn structure, which is a convergent feature in the eyesight‐reduced cavefish species. In this work, the structure‐function relationships of this specific head horn structure are systemically investigated, adequately revealing that it can enhance hydrodynamic perception and facilitate underwater ...
Zhiqiang Ma, Zheng Gong, Yonggang Jiang, Peng Wu, Changxin You, Zihao Dong, Hongchao Cao, Zhen Yang, Yahui Zhao, Huawei Chen, Deyuan Zhang   +10 more
wiley   +1 more source

Research on Unmanned Underwater Vehicle Threat Assessment

IEEE Access, 2019
The unmanned underwater vehicle (UUV) plays an ever increasing and important role in the modern marine environment. In particular, the tasks of underwater reconnaissance and surveillance, underwater mine hunting and anti-submarine warfare, all poses a ...
Hongfei Yao, Hongjian Wang, Yiming Li, Ying Wang, Chunsong Han   +4 more
doaj   +1 more source

Sonar aided navigation and control of small UUVs

2011 19th Mediterranean Conference on Control & Automation (MED), 2011
This paper addresses the problem of guiding a simple unmanned underwater vehicle (UUV) from a more capable, sonar equipped, platform, preferably an autonomous underwater or surface vessel (AxV). One application of this concept, considered in this article, is autonomous mine neutralization and disposal.
Nađ, Đula, Mišković, Nikola, Djapic, Vladimir, Vukić, Zoran   +3 more
openaire   +2 more sources