Results 31 to 40 of about 4,542,550 (227)

Effect of flight velocity on droplet deposition and drift of combined pesticides sprayed using an unmanned aerial vehicle sprayer in a peach orchard

Frontiers in Plant Science, 2022
Extensive research has been conducted on plant protection unmanned aerial vehicle (UAV) chemical application technology in recent years owing to its importance as a means of pest and disease control.
Longlong Li, Longlong Li, Longlong Li, Zhihong Hu, Zhihong Hu, Qingju Liu, Qingju Liu, Tongchuan Yi, Tongchuan Yi, Tongchuan Yi, Ping Han, Ping Han, Ruirui Zhang, Ruirui Zhang, Ruirui Zhang, Ligang Pan, Ligang Pan   +16 more
doaj   +1 more source

Analysis of the research progress on the deposition and drift of spray droplets by plant protection UAVs

Scientific Reports, 2023
Abstract Plant protection unmanned aerial vehicles (UAVs), which are highly adapted to terrain and capable of efficient low-altitude spraying, will be extensively used in agricultural production. In this paper, single or several independent factors influencing the deposition characteristics of droplets sprayed by plant protection UAVs,
Qin Weicai, Chen Panyang
openaire   +3 more sources

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

Drones, 2023
Unmanned aerial vehicles (UAVs) have been widely used in plant protection, and the mechanism of droplet deposition drift while spraying with the 3WQF120-12 produced by Quanfeng Aviation, a representative model of single-rotor plant protection UAVs in ...
Juan Wang, Xiaoyi Lv, Bohong Wang, Xinguo Lan, Yingbin Yan, Shengde Chen, Yubin Lan   +6 more
doaj   +1 more source

Polygonal plot scaling method for plant protection of rotor-like UAVs [PDF]

E3S Web of Conferences, 2021
In this paper, a universal polygonal block boundary method is proposed to solve the problem of integral shrinkage and integral expansion of the boundary of the operation area when facing complex operation area boundary and obstacle boundary in the plant protection process of rotor-wing unmanned aerial vehicles (UAVs).
openaire   +2 more sources

Efficacy of cotton harvest aids applications with unmanned aerial vehicles (UAV) and ground-based field sprayers – A case study comparison

Smart Agricultural Technology, 2022
The opportunity of using of Unmanned Aerial Vehicles (UAVs) for applying harvest aids in ultra-low volumes (ULV) in cotton is an interesting perspective to overcome common problems associated with traditional ground-based applications like crop ...
Chris Cavalaris, Christos Karamoutis, Athanasios Markinos   +2 more
doaj   +1 more source

Plant Protection UAV Operation Recommendation Using Storm Framework

IFAC-PapersOnLine, 2019
Abstract A scientific and reasonable recommendation algorithm for plant-protecting UAV (Unmanned Aerial Vehicle) operating helps UAV renters with optimal and economical solutions, as well improves the efficiency of plant protecting work and its management.
Lihua Zheng, Ronghua Ji, Hong Sun, Ze Yang, Minzan Li   +4 more
openaire   +1 more source

Key Technology Progress of Plant-Protection UAVs Applied to Mountain Orchards: A Review [PDF]

Agronomy, 2022
With precision agriculture developing rapidly worldwide, water-saving, energy-saving, environment-friendly, and efficient agricultural production activities are effective ways to address human needs for agricultural products under the conditions of intensifying climate change, limited available arable land resources, and rapid population growth. Ground-
Yu, Shaomeng, Zhu, Jianxi, Zhou, Juan, Cheng, Jianqiao, Bian, Xiaodong, Shen, Jiansheng, Wang, Pengfei   +6 more
openaire   +2 more sources

Insulator fault feature extraction system of substation equipment based on machine vision

IET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang, Qiaoqun Xia, Lijun Ma, Xin Xu, Zhipeng Shao   +4 more
wiley   +1 more source

Trichoderma atroviride enhances phenolic synthesis and cucumber protection against Rhizoctonia solani [PDF]

, 2018
The treatment of cucumber plants with Trichoderma atroviride TRS25 (TRS25) provided protection against infection by Rhizoctonia solani. In plants inoculated with the pathogen, nontreated with Trichoderma, disease symptoms were observed on the roots ...
Magdalena Szczech, Urszula Małolepsza, Szczech, Magdalena, Nawrocka, Justyna, Justyna Nawrocka, Małolepsza, Urszula   +5 more
core   +1 more source

Numerical Simulation and Analysis on Spray Drift Movement of Multirotor Plant Protection Unmanned Aerial Vehicle

Energies, 2018
In recent years, multirotor unmanned aerial vehicles (UAVs) have become more and more important in the field of plant protection in China. Multirotor unmanned plant protection UAVs have been widely used in vast plains, hills, mountains, and other regions,
Fengbo Yang, Xinyu Xue, Chen Cai, Zhu Sun, Qingqing Zhou   +4 more
doaj   +1 more source