Results 11 to 20 of about 3,950 (148)

Beyond visual-line-of-sight (BVLOS) drone operations for environmental and infrastructure monitoring: a case study in northwestern Canada

Drone Systems and Applications, 2023
Aerial drones typically operate over small geographic areas (
Jurjen van der Sluijs, Eyal Saiet, Carolyn N. Bakelaar, Andrew Wentworth, Robert H. Fraser, Steven V. Kokelj   +5 more
doaj   +1 more source

A Novel Direct Optimization Framework for Hypersonic Waverider Inverse Design Methods

Aerospace, 2022
Waverider is a hypersonic vehicle that improves the lift-to-drag ratio using the shockwave attached to the leading edge of the lifting surface. Owing to its superior aerodynamic performance, it exhibits a viable external configuration in hypersonic ...
Jiwon Son, Chankyu Son, Kwanjung Yee
doaj   +1 more source

Unmanned Aircraft Systems: A Latin American Review and Analysis from the Colombian Context

Applied Sciences, 2023
The usage of unmanned aircraft systems to complete routine, commercial, and industrial tasks has increased throughout the world, evidencing better profitability and reducing risks for operators.
Gabriel J. Sánchez-Zuluaga, Luisa Isaza-Giraldo, Germán Darío Zapata-Madrigal, Rodolfo García-Sierra, John E. Candelo-Becerra   +4 more
doaj   +1 more source

Instructions on the Use of Unmanned Aerial Vehicles (UAVs)

EDIS, 2018
The purpose of this document is to provide guidance on the appropriate use of Unmanned Aircraft Vehicles (UAV) or Unmanned Aircraft Systems (UAS) in the State of Florida.
Sri Charan Kakarla, Yiannis Ampatzidis
doaj   +5 more sources

Vertidrome Airside Level of Service: Performance-Based Evaluation of Vertiport Airside Operations

Drones, 2023
This paper presents the Vertidrome Airside Level of Service (VALoS) framework, a novel performance metric designed to evaluate airside traffic flow operations at vertidromes in the context of Urban Air Mobility (UAM). As the UAM industry rapidly evolves,
Karolin Schweiger, Franz Knabe
doaj   +1 more source

Integrated Aerial System Design for Wildfire Fighting and Surveillance with Tactical Considerations

Engineering Proceedings
Wildfire disasters are increasing in scale and severity, underscoring the need for more capable and coordinated aerial firefighting systems. This work presents a performance-based integrated aerial system framework that links the aircraft design tool ...
Giho Lee, Sewoong Park, Soungmin Choi, Sewoong Oh, Byeongjun Park, Minseong Kim, Nikolaos Kalliatakis, Nabih Naeem, Prajwal Shiva Prakasha, Donguk Lee   +9 more
doaj   +1 more source

Control of Aerodynamic Characteristics of Thick Airfoils at Low Reynolds Numbers Using Methods of Boundary Layer Control

Fluids
The article explores flow behavior around thick airfoils at low Reynolds numbers and the potential application of energy methods to manipulate the flow field for increased lift and reduced drag. The study relies on a set of propulsion airfoils calculated
Pavel Bulat, Pavel Chernyshov, Nikolay Prodan, Konstantin Volkov   +3 more
doaj   +1 more source

Classification and Diagnosis of Propeller Damages Using FFT-Based Motor Current Signature Analysis of DC-Link Current

IEEE Access
This study proposes a frequency-domain diagnostic approach for detecting and characterizing unmanned aerial vehicle (UAV) propeller damage using only motor electrical signals. Motor current signals were analyzed via fast Fourier transform (FFT) across 36
Giho Lee, Sewoong Park, Seungmin Choi, Sanga Lee, Jinseok Jeong, Donguk Lee   +5 more
doaj   +1 more source

Research on reliability modeling of unmanned aircraft system avionics systems based on 5G

International Journal of Distributed Sensor Networks, 2019
With the development of technology, an unmanned aircraft system will play a significant role in Internet of things based on 5G. Avionics system is an important part of the unmanned aircraft system, and the reliability of the avionics system directly ...
Qiang Zhou, Yongan Wei, Longjiang Zhu
doaj   +1 more source

ENSURING THE SAFETY OF A HETEROGENEOUS GROUP OF UNMANNED AIRCRAFT

Измерение, мониторинг, управление, контроль, 2021
Background. The object of the study is to ensure the safety of the flight of unmanned aircraft as part of a heterogeneous group in the emergency zone, designed for the localization and elimination of emergency situations.
V.V. Sherstnev
doaj   +1 more source