1–20 of 38 hits
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    Towards More Efficient Electric Propulsion UAV Systems Using Boundary Layer Ingestion

    Free access
    Jonathan Arias / Francisco Martinez / Edgar Cando et al. | DOAJ | 2023
    ( η p > 80 % ) . Indeed, the aerodynamic ...
    Keywords: drones

    SiamMAN: Siamese Multi-Phase Aware Network for Real-Time Unmanned Aerial Vehicle Tracking

    Free access
    Faxue Liu / Xuan Wang / Qiqi Chen et al. | DOAJ | 2023

    Semantic Scene Understanding with Large Language Models on Unmanned Aerial Vehicles

    Free access
    J. de Curtò / I. de Zarzà / Carlos T. Calafate | DOAJ | 2023
    descriptions. The generated texts achieve a GUNNING Fog median grade level in the range of 712. Applications of this framework could be found in the ...

    Piloting an Unmanned Aerial Vehicle to Explore the Floristic Variations of Inaccessible Cliffs along Island Coasts

    Free access
    Seongjun Kim / Chang Woo Lee / Hwan-Joon Park et al. | DOAJ | 2023
    the island, Type-S: other island aspects) and elevation. The studied coastal cliffs contained 94 flora taxa, of which 13 and 12 taxa were ...

    Oxpecker: A Tethered UAV for Inspection of Stone-Mine Pillars

    Free access
    Bernardo Martinez Rocamora / Rogério R. Lima / Kieren Samarakoon et al. | DOAJ | 2023
    pillars to support time-lapse hazard mapping and time-dependent pillar degradation analysis. Given the height of the pillars (712 ...

    Optimal Model-Free Finite-Time Control Based on Terminal Sliding Mode for a Coaxial Rotor

    Free access
    Hossam Eddine Glida / Chouki Sentouh / Jagat Jyoti Rath | DOAJ | 2023

    Numerical Simulation and Analysis of Droplet Drift Motion under Different Wind Speed Environments of Single-Rotor Plant Protection UAVs

    Free access
    Juan Wang / Xiaoyi Lv / Bohong Wang et al. | DOAJ | 2023
    with the 3WQF120-12 produced by Quanfeng Aviation, a representative model of single-rotor plant protection UAVs in China, still requires more ...

    N-Cameras-Enabled Joint Pose Estimation for Auto-Landing Fixed-Wing UAVs

    Free access
    Dengqing Tang / Lincheng Shen / Xiaojia Xiang et al. | DOAJ | 2023

    Monitoring Maize Leaf Spot Disease Using Multi-Source UAV Imagery

    Free access
    Xiao Jia / Dameng Yin / Yali Bai et al. | DOAJ | 2023
    identification in four stages (4, 12, 19, and 30 days after inoculation). The results showed that multispectral indices involving the red, red edge, and ...

    Material Extrusion Additive Manufacturing of the Composite UAV Used for Search-and-Rescue Missions

    Free access
    Sebastian-Marian Zaharia / Ionut Stelian Pascariu / Lucia-Antoneta Chicos et al. | DOAJ | 2023
    was found that the maximum lift coefficient of 1.2 and the maximum drag coefficient of 0.06 were obtained at the angle of attack of 12°. After ...

    In Situ VTOL Drone-Borne Observations of Temperature and Relative Humidity over Dome C, Antarctica

    Free access
    Philippe Ricaud / Patrice Medina / Pierre Durand et al. | DOAJ | 2023
    installed aboard the drone coupled to an Anasphere SLW sensor. A total of thirteen flights were conducted from 24 December 2022 to 17 January 2023 ...

    Impacts of Drone Flight Altitude on Behaviors and Species Identification of Marsh Birds in Florida

    Free access
    Jeremy P. Orange / Ronald R. Bielefeld / William A. Cox et al. | DOAJ | 2023
    Unmanned aerial vehicles (hereafter drones) are rapidly replacing manned aircraft as the preferred tool used for aerial wildlife surveys ...

    Imitation Learning of Complex Behaviors for Multiple Drones with Limited Vision

    Free access
    Yu Wan / Jun Tang / Zipeng Zhao | DOAJ | 2023
    Navigating multiple drones autonomously in complex and unpredictable environments, such as forests, poses a significant challenge typically ...

    Fixed-Time Extended Observer-Based Adaptive Sliding Mode Control for a Quadrotor UAV under Severe Turbulent Wind

    Free access
    Armando Miranda-Moya / Herman Castañeda / Hesheng Wang | DOAJ | 2023

    Faba Bean (Vicia faba L.) Yield Estimation Based on Dual-Sensor Data

    Free access
    Yuxing Cui / Yishan Ji / Rong Liu et al. | DOAJ | 2023
    estimation accuracy. The results obtained are as follows: for a single-growth period, S2 (12 July 2019) had the best accuracy of the estimation model ...

    Exploring Meteorological Conditions and Microscale Temperature Inversions above the Great Barrier Reef through Drone-Based Measurements

    Free access
    Christian Eckert / Kim I. Monteforte / Daniel P. Harrison et al. | DOAJ | 2023
    regulatory obstacles. Here, we assessed the potential of consumer drones equipped with lightweight atmospheric sensors to collect vertical ...
    Keywords: multi-copter drones