Results 41 to 50 of about 11,676 (232)

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

open access: yesAnimal 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   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +4 more
wiley   +1 more source

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

open access: yesApplied 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   +6 more
doaj   +1 more source

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

open access: yesRemote 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   +7 more
wiley   +1 more source

Towards UAV-USV Collaboration in Harsh Maritime Conditions Including Large Waves [PDF]

open access: yesInternational Conference on Informatics in Control, Automation and Robotics
This paper introduces a system designed for tight collaboration between Unmanned Aerial Vehicles (UAVs) and Unmanned Surface Vehicles (USVs) in harsh maritime conditions characterized by large waves.
Filip Novák   +3 more
semanticscholar   +1 more source

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

open access: yesPolish 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   +5 more
doaj   +1 more source

La percepció de l’alumnat sobre la freqüència d’avaluació

open access: yesRevista d'Innovació i Recerca en Educació, 2010
En aquest article presentem una síntesi d’alguns dels resultats obtinguts en una investigació sobre la percepció de l’alumnat sobre la freqüència d’avaluació acadèmica, duta a terme amb estudiants de diverses universitats públiques i privades romaneses ...
Otilia Clipa, Nicoleta Duta
doaj   +1 more source

Cost Information, Insider Trading, and Product Market Equilibrium Renseignements sur les coûts, opération d'initié et équilibre du marché des produits

open access: yesContemporary Accounting Research, EarlyView.
ABSTRACT We study how insider trading based on private cost information affects product market outcomes when firms differ in cost variance. In our model, managers exploit firm‐specific cost information to pursue short‐term trading gains, leading them to adjust output decisions and reshape product market competition.
Dingwei Gu, Hanwen Sun
wiley   +1 more source

A low cost USV for aqua farm inspection [PDF]

open access: yes2016 Techno-Ocean (Techno-Ocean), 2016
This paper describes the rapid prototyping of a low cost remotely controlled unmanned surface vessel (USV) intended for inspection of aqua farms. There is an increased focus on inspection of ocean-based aqua farms due to three major challenges: escaping fish, sea lice, and algae.
Osen, Ottar   +4 more
openaire   +2 more sources

As‐Rigid‐As‐Possible Regularization for Implicit Surfaces

open access: yesComputer Graphics Forum, EarlyView.
Abstract Implicit surface representations have regained popularity because of their use in machine learning. A common component in optimization is regularization, penalizing the deviation of the surface from its original shape. The popular as‐rigid‐as‐possible (Arap) energy strikes a good compromise between realistic deformation behavior and efficient ...
T. Djuren   +3 more
wiley   +1 more source

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