Results 101 to 110 of about 4,896 (262)

Slamming response analysis of global load for large-bow flare naval ship in rough sea

Zhongguo Jianchuan Yanjiu
ObjectivesWhen a large-bow naval ship encounters adverse sea conditions, bow flare slamming causes a hull girder whipping response which threatens the security of global longitudinal strength.
Xue QU, Kai ZHENG, Luyao ZOU, Jian ZOU
doaj   +1 more source

SNI-SLAM: Semantic Neural Implicit SLAM

2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
We propose SNI-SLAM, a semantic SLAM system utilizing neural implicit representation, that simultaneously performs accurate semantic mapping, high-quality surface reconstruction, and robust camera tracking. In this system, we introduce hierarchical semantic representation to allow multi-level semantic comprehension for top-down structured semantic ...
Siting Zhu 0001, Guangming Wang 0001, Hermann Blum, Jiuming Liu, Liang Song, Marc Pollefeys, Hesheng Wang 0001   +6 more
openaire   +3 more sources

Robotics for Crop Pollination: Recent Advances and Future Direction

Journal of Field Robotics, EarlyView.
ABSTRACT There is great interest in alternative pollination strategies for crop production in the face of climate change and perennial threats to the traditional pollination mechanisms. This review explores the potential of robotic pollination as a promising solution to these challenges affecting crop fertilization, agricultural sustainability, and ...
Ranjan Sapkota, Matthew D. Whiting, Dawood Ahmed, Manoj Karkee   +3 more
wiley   +1 more source

On Air-Cavity Formation during Water Entry of Flexible Wedges

Journal of Marine Science and Engineering, 2018
Elastic bodies entering water might experience fluid⁻structure interaction phenomena introduced by the mutual interaction between structural deformation and fluid motion. Cavity formation, often misleadingly named cavitation, is one of these.
Riccardo Panciroli, Tiziano Pagliaroli, Giangiacomo Minak   +2 more
doaj   +1 more source

DNS-SLAM: Dense Neural Semantic-Informed SLAM

2024 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
In recent years, coordinate-based neural implicit representations have shown promising results for the task of Simultaneous Localization and Mapping (SLAM). While achieving impressive performance on small synthetic scenes, these methods often suffer from oversmoothed reconstructions, especially for complex real-world scenes.
Kunyi Li, Michael Niemeyer, Nassir Navab, Federico Tombari   +3 more
openaire   +4 more sources

A Comparison of Mobile Laser Scanning Data Acquisition Methods in Closed Forest, Open Woodland and Sub‐Alpine Woodland Ecosystems

Remote Sensing in Ecology and Conservation, EarlyView.
This study demonstrates that the mobile laser scanning (MLS) sampling density required to reliably characterise vegetation structure increases with a site's structural complexity. Applying a five‐level acquisition framework across open woodland, closed forest and sub‐alpine woodland ecosystems, we found that longer scanning paths increased the ...
Johann Tiede, Karin Reinke, Trung H. Nguyen, Simon Jones   +3 more
wiley   +1 more source

Experimental Analysis of slam-induced pressure on the bow-segment of surface ship

نشریه مهندسی دریا, 2021
Today, determination of slam-induced pressure is one of the interested issue of the researchers. Water entry of bow section of a ship is experimentally examined, in order to investigation of slamming pressure.
Mojtaba Shokri, Mohammad Reza Khedmati, Karim Akbari Vakilabadi, Mohammad Rezai Sangtabi   +3 more
doaj  

Parametric Study on the Free-Fall Water Entry of a Sphere by Using the RANS Method

Journal of Marine Science and Engineering, 2019
Motivated by the application of water-entry problems in the air-drop deployment of a spherical oceanographic measuring device, the free-fall water entry of a sphere was numerically investigated by using the transient Reynolds-averaged Navier−Stokes
Pengyao Yu, Cong Shen, Chunbo Zhen, Haoyun Tang, Tianlin Wang   +4 more
doaj   +1 more source

H-SLAM: Hybrid direct–indirect visual SLAM

Robotics and Autonomous Systems
The recent success of hybrid methods in monocular odometry has led to many attempts to generalize the performance gains to hybrid monocular SLAM. However, most attempts fall short in several respects, with the most prominent issue being the need for two different map representations (local and global maps), with each requiring different ...
Georges Younes 0001, Douaa Khalil, John S. Zelek, Daniel C. Asmar   +3 more
openaire   +4 more sources

Numerical prediction of slamming loads

, 2012
It is important to include the contribution of the slamming-induced response in the structural design of large vessels with a significant bow flare. At the same time it is a challenge to develop rational tools to determine the slamming-induced loads and ...
Pedersen, Preben T, Seng, Sopheak, Jensen, Jørgen J   +2 more
core   +1 more source