Results 31 to 40 of about 4,204 (185)

An Integrated Numerical and Bollard Pull Evaluation Approach for Early‐Stage Resistance and Thrust Assessment of a Small Craft

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Early‐stage hydrodynamic assessment of slender multihull vessels is challenged by limited geometric maturity, uncertain propulsion integration, and strong sensitivity to operating conditions. Under such constraints, reliance on a single analytical or numerical method may lead to misleading design decisions due to oversimplification or ...
Chairat Napasaksri, Napat Intaraksa, Chalermkiat Nuchturee, Ramil Kesvarakul, Sarawuth Srinakaew   +4 more
wiley   +1 more source

Diverse Feature-Level Guidance Adjustments for Unsupervised Domain Adaptative Object Detection

Applied Sciences
Unsupervised Domain Adaptative Object Detection (UDAOD) aims to alleviate the gap between the source domain and the target domain. Previous methods sought to plainly align global and local features across domains but adapted numerous pooled features and ...
Yuhe Zhu, Chang Liu, Yunfei Bai, Caiju Wang, Chengwei Wei, Zhenglin Li, Yang Zhou   +6 more
doaj   +1 more source

Motion Control and Collision Avoidance Algorithms for Unmanned Surface Vehicle Swarm in Practical Maritime Environment

Polish Maritime Research, 2019
The issue of controlling a swarm of autonomous unmanned surface vehicles (USVs) in a practical maritime environment is studied in this paper. A hierarchical control framework associated with control algorithms for the USV swarm is proposed.
Zhuang Jiayuan, Zhang Lei, Qin Zihe, Sun Hanbing, Wang Bo, Cao Jian   +5 more
doaj   +1 more source

Characterization of acoustic detection efficiency using an unmanned surface vessel as a mobile receiver platform

Animal Biotelemetry, 2023
Studies involving acoustic telemetry typically use stationary acoustic receivers arranged in an array or grid. Unmanned surface vehicle (USV)-based mobile receivers offer advantages over the latter approach: the USV can be programmed to autonomously ...
Eric M. Gaskell, Tyler R. Funnell, Christopher M. Holbrook, Darryl W. Hondorp, Xiaobo Tan   +4 more
doaj   +1 more source

A Service Ecosystems Approach for Sustainable Volunteer Engagement: Developing Insights From COVID‐19 Disruptions

Nonprofit Management and Leadership, EarlyView.
ABSTRACT The purpose of this paper is to develop foundational propositions designed to reflect success factors in the recruitment and retention of volunteers for future longevity. Using insights gathered from three universities' experiences of student volunteering during COVID‐19, plus capturing the experiences of volunteer involving organizations, we ...
Ingrid O'Brien, Fazlul K. Rabbanee, Eunjung Kim, Megan Paull, Kirsten Holmes, Jo‐Anne Kestel   +5 more
wiley   +1 more source

Linear System Identification and Control of a Low‐Cost High‐Performance Omnidirectional Marine Surface Vehicle for Swarming Applications

Journal of Field Robotics, EarlyView.
ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah, Gianni Cario, Alessandro Casavola, Marco Lupia, Francesco Tedesco   +4 more
wiley   +1 more source

Information About Dynamics of the Sea Surface as a Means to Improve Safety of the Unmanned Vessel at Sea

Polish Maritime Research, 2016
One of the fundamental states of the sea surface is its heave. Despite of years of the intense scientific inquiry, no clear understanding of the influence of this aspect on the dynamics of the sea environment has emerged.
Przyborski Marek
doaj   +1 more source

Preliminary research on thermal inversions occurring in the Northeast Region of Romania [PDF]

Georeview
This study represents preliminary research on thermal inversions in the Northeast Region of Romania (RNER). Thermal and hygrometric monitoring was carried out in six areas (with two pairs of observation points each – one located in a depression/valley ...
Andrei MIHALACHE, Dumitru MIHĂILĂ, Petruț-Ionel BISTRICEAN, Elena MEDEI (POP)   +3 more
doaj   +1 more source

Scalable low‐cost seabed landers: the missing link for sustained, integrated, long‐term observations in dynamic shallow seas

Remote Sensing in Ecology and Conservation, EarlyView.
Seabed landers, when equipped with a range of biotic and abiotic sensors, offer a non‐invasive and cost‐effective solution for ecosystem‐scale monitoring of Essential Biodiversity Variables (EBVs) and Essential Ocean Variables (EOVs) in dynamic shallow seas.
Arienne Calonge, Roeland Develter, Carlota Muñiz, Clea Parcerisas, Jan Reubens, Wieter Boone, Klaas Deneudt, Elisabeth Debusschere   +7 more
wiley   +1 more source

CPDet: Circle-Permutation-Aware Object Detection for Heat Exchanger Cleaning

Applied Sciences
Shell–tube heat exchangers are commonly used equipment in large-scale industrial systems of wastewater heat exchange to reclaim the thermal energy generated during industrial processes.
Jinshuo Liang, Yiqiang Wu, Yu Qin, Haoyu Wang, Xiaomao Li, Yan Peng, Xie Xie   +6 more
doaj   +1 more source