Results 61 to 70 of about 4,872,971 (182)

Geophysical Prospecting for the Detection of Buried and Shallow Submerged Archaeological Sites of Roman Period in the Lagoon of Venice (Italy)

Archaeological Prospection, Volume 32, Issue 4, Page 1005-1019, October/December 2025.
ABSTRACT We present a study that combines several marine geophysical techniques to detect and map archaeological sites from the Roman period in the shallow waters of the Venice Lagoon, Italy. We employed marine electrical resistivity tomography (M‐ERT), a drone‐based unmanned surface vehicle (USV) multibeam sonar, and subbottom profiler technology to ...
Carlo Beltrame, Elisa Costa, Paolo Mozzi, Alberto Carrera, Jacopo Boaga   +4 more
wiley   +1 more source

A Differential Bathymetric Dataset of Anthropogenic Postmining Lake in the Glaciotectonic Muskau Arch Geopark, Poland

Geoscience Data Journal, Volume 12, Issue 3, July 2025.
Open access high‐resolution bathymetric point cloud dataset of postmining reservoir for differential analysis of lakebed augmenting studies of present‐day processes. ABSTRACT Mining has a lasting impact on the environment, not only during the active mining process but also long after operations cease.
Jan Blachowski, Jarosław Wajs, Karolina Kawałko   +2 more
wiley   +1 more source

Hydrodynamic analysis of coupled motion responses of a supply ship–USV system during side-by-side refuelling operations

International Journal of Naval Architecture and Ocean Engineering
The hydrodynamic behaviour of a dual-vessel system is a key factor governing the local motion compatibility of side-by-side refuelling involving unmanned surface vehicles (USVs).
Shengze Liu, Zhiheng Zhang, Haoran Zhang, Xiaolin Liu   +3 more
doaj   +1 more source

Integrating Systems Methodologies for Australian Undersea Surveillance: A Systematic Literature Review

Systems Engineering, Volume 28, Issue 4, Page 471-497, July 2025.
ABSTRACT Australia is a maritime nation, relying on access to its surrounding oceans for its economy and security. The Royal Australian Navy conducts undersea surveillance to monitor this vital maritime environment and gain insight into activities beneath the ocean's surface.
Timothy J. Milledge, Biswajeet Pradhan, Nagesh Shukla   +2 more
wiley   +1 more source

Surface roughness prediction in milling based on tool displacements [PDF]

, 2011
In this paper, an experimental device using non-contact displacement sensors for the investigation of milling tool behaviour is presented. It enables the recording of high frequency tool vibrations during milling operations.
MOREAU, Vincent, Jean Philippe Costes, Vincent Moreau, COSTES, Jean-Philippe   +3 more
core   +1 more source

Parameter Identification of an Unmanned Surface Vessel Nomoto Model Based on an Improved Extended Kalman Filter

Applied Sciences
The accurate nonlinear modeling of an unmanned surface vessel (USV) is essential for advanced control and operational performance. This paper combines the locally weighted regression (LWR) algorithm and the extended Kalman filter (EKF) for parameter ...
Sihang Lu, Baolin Wang, Zaopeng Dong, Zhihao Hu, Yilun Ding, Wangsheng Liu   +5 more
doaj   +1 more source

Parameter optimization of unmanned surface vessel propulsion motor based on BAS-PSO

International Journal of Advanced Robotic Systems, 2022
Despite advances in modern control theory and artificial intelligence technology, current methods for tuning proportional-integral-derivative (PID) controller parameters based on the traditional particle swarm optimization (PSO) algorithm do not meet the
Li Bian, Xiangqian Che, Liu Chengyang, Dai Jiageng, He Hui   +4 more
doaj   +1 more source

MARS: Programmable multipurpose auto‐release system for aquatic observations

Limnology and Oceanography: Methods, Volume 23, Issue 6, Page 376-388, June 2025.
Abstract Aquatic biodiversity assessments are often labor‐intensive due to the large size of the equipment and the complex logistics of sea vessel operations. Traditional drift and drop cameras are typically tethered to the surface, causing cable and line clutter on sea vessels.
Marko Radeta, João Gama Monteiro, João Pestana, Dinarte Vieira, Pedro Abreu, Rodrigo Silva, Susanne Schäfer, Patrício Ramalhosa, Ana Lopez Martos, Bruno Loureiro, Nuno Queiroz, Rui Seabra, Fernando P. Lima, João Canning‐Clode   +13 more
wiley   +1 more source

Survei Batimetri di Perairan Dangkal dengan Menggunakan Wahana USV (Unmanned Surface Vehicle), HIMAGE USV I [PDF]

, 2017
USV (Unmanned Surface Vehicle) adalah suatu wahana tanpa awak di permukaan air yang dapat digunakan untuk keperluan survey batimetri. Hal ini dikarenakan, wahana USV memiliki kelebihan dalam hal fleksibilitas, efisiensi, dan efektifitas. Pada penelitian
Ferriska, Okta
core  

Study on path planning of unmanned surface vessel based on data-driven genetic algorithm

智能科学与技术学报, 2019
The genetic algorithm (GA) is an effective method for the path planning system of unmanned surface vessel (USV),but it is easy to fall into local optimal precocity and converges slowly.For this,without increasing the complexity of the algorithm,a data ...
Junfeng XIN, Yongbo ZHANG, Jiageng BO, Bowen ZHAO, Shiyuan FAN   +4 more
doaj