Results 81 to 90 of about 1,326,056 (320)

Autonomous Antidisturbance Flight Control of Tilt-Rotor UAV in Complex Environment of Ultralow Altitude

International Journal of Aerospace Engineering
In our work, an algorithm is presented for tilt-rotor UAV clusters in an unknown complex environment, which addresses the challenge of navigating and positioning in complex unknown environments without external navigation and positioning information.
Liben Yang, Yu Li, Jianwen Tian, Dong Wang   +3 more
doaj   +1 more source

Robust path planning for avoiding obstacles using time-environment dynamic map

Measurement + Control, 2020
Small unmanned aerial vehicles are widely used in urban space because of its flexibility and maneuverability. However, there are full of dynamic obstacles and immobile obstacles which will affect safe flying in urban space.
Xiaolin Zhao, Yu Zhang, Boxin Zhao
doaj   +1 more source

Molecular Bases and Genetic Design of Rice Disease Resistance for Optimized Yield and Sustainable Agriculture

Advanced Science, EarlyView.
This study integrates rice immune perception, signal transduction, and resistance output into a multi‐omics framework. By combining high‐throughput sequencing, phenomics, and AI‐assisted design with marker‐assisted selection, gene editing, and rapid domestication, we aim to accelerate the precise breeding of disease‐resistant rice varieties by ...
Xinyue Hou, Yuanjiang Cui, Chaoqing Ding, Qian Qian, Deyong Ren   +4 more
wiley   +1 more source

Space and time joint optimization for vertical takeoff and landing aircraft in dense obstacles and interference environments

Systems Science & Control Engineering
The Vertical Takeoff and Landing Aircraft (VTOL) is capable of both low-speed hovering and high-speed flight. This paper proposes an autonomous motion planning and anti-wind disturbance control algorithm for the VTOL, implemented spatial and temporal ...
Liben Yang, Yu Li, Jianwen Tian, Dong Wang   +3 more
doaj   +1 more source

Underground unmanned aerial vehicles cluster system for monitoring and its key technologies

Gong-kuang zidonghua, 2019
Underground monitoring and control system is usually fixed and has limited range, so it is difficult to fully meet dynamic monitoring requirements of underground safety production.
YANG Wei, SHAN Chunyan, LIU Junbo
doaj   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

Advanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang, Xing Yang, Liping Liu, Yang Peng, Yangyang Wang, Hualiang Lv   +5 more
wiley   +1 more source

Livestock Management With Unmanned Aerial Vehicles: A Review

IEEE Access, 2022
The ease of use and advancements in drone technology is resulting in the widespread application of Unmanned Aerial Vehicles (UAVs) to diverse fields, making it a booming technology.
M. A. Alanezi, M. Shahriar, Md. Bakhtiar Hasan, Sabbir Ahmed, Yusuf Abubakar Sha’aban, H. Bouchekara   +5 more
semanticscholar   +1 more source

Potential field method for persistent surveillance of multiple unmanned aerial vehicle sensors

International Journal of Distributed Sensor Networks, 2018
Persistent surveillance is one of the major tasks envisioned for unmanned aerial vehicles in that some regions of interest need to be continuously surveyed.
Changxin Huang, Wei Li, Chao Xiao, Binbin Liang, Songchen Han   +4 more
doaj   +1 more source

Overview of Propulsion Systems for Unmanned Aerial Vehicles

Energies, 2022
Unmanned Aerial Vehicle (UAV) propulsion technology is significantly related to the flight performance of UAVs, which has become one of the most important development directions of aviation.
Bowen Zhang, Zaixin Song, Fei Zhao, Chunhua Liu   +3 more
semanticscholar   +1 more source

An intelligent, heuristic path planner for multiple agent unmanned air systems

, 2015
In situ observations of atmospheric variables are currently obtained with radiosondes, collecting data along uncontrolled trajectories. As an alternative, we propose an unmanned air system comprising a swarm of unmanned aerial vehicles, released from ...
Chris Crispin, Sobester, Andras, Andras Sobester, Crispin, Chris   +3 more
core   +1 more source