Results 21 to 30 of about 5,507 (139)
AgricultureCotton spider mites pose a significant threat to cotton production, while traditional manual investigation and blanket pesticide application are inefficient for precision pest management in large-scale cotton fields. To address this challenge, this study
Hua Zhuo +9 more
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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
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FluidsThe 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 +3 more
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IEEE AccessThis 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 +5 more
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Drones or uncrewed aircraft – acronyms, definitions, and gender equality
Bulletin of "Carol I" National Defense University, 2023 Unmanned aircraft/drones are increasingly present in everyday life, from flight demonstrations, event filming, mapping, and agricultural use to delivering goods or, in the future, transporting people.
Cătălin BALMUȘ, Ph.D Candidate
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Advanced Science, EarlyView.The pholidota‐inspired electronic skin is successfully constructed, originally realized four‐state reversible switching of terahertz‐wave reflection, absorption, transmission, and secondary reflection. In response to external demands, it issues deformation instructions, verifies the deformation state after the equipment executes the action, and thus ...
Shangjing Li +4 more
wiley +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai +3 more
wiley +1 more source
Smoke Diffusion Characteristics for Smoke Generator Based on Turbojet
Nanjing Hangkong Hangtian Daxue XuebaoBased on the discrete phase model in the simulation software FLUENT， the smoke diffusion characteristics under high-speed jet action of a smoke generator powered by a turbojet engine are calculated.
CAO Guangzhou, REN Rui, SUN Hongliang
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Overview of regulatory frameworks for unmanned aircraft [PDF]
TehnikaThis paper presents the regulatory framework for the use of unmanned aircraft in the airspace of the Republic of Serbia. The work contains an overview of regulations at the international level, primarily the regulations of the International Civil ...
Marina Miloš S. +1 more
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Identification, Categorisation and Gaps of Safety Indicators for U-Space
Energies, 2020 Many civilian applications of commercial unmanned aircraft are being planned to operate in the years ahead. Several countries have developed their own framework to design the operation of unmanned aircraft and the different services that demand safe ...
Javier Alberto Pérez-Castán +4 more
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