Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Hanjie Dou"'
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
Different fruit tree canopies have different requirements for air speed and air volume. Due to the strong relationship between air speed and air volume, the decoupled control of air speed and air volume cannot be achieved using the existing sprayers.
Externí odkaz:
https://doaj.org/article/4fb6a5ded45e40bb82ab090da084f0d4
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
The deposited pesticide distribution in fruit tree canopies is crucial for evaluating the efficacy of air-assisted spraying in orchards. Most studies have determined the impact of pesticide application on pesticide deposition on canopies without a qu
Externí odkaz:
https://doaj.org/article/c995c9b92fc0408688a1c3530ccb3f73
Autor:
Tao Liu, Zhihao Li, Jiahuan Zhang, Dongxiao Li, Hanjie Dou, Pengfan Wu, Jiaqian Yang, Wangyang Zhang, Xiaojing Mu
Publikováno v:
Micromachines, Vol 15, Iss 1, p 45 (2023)
Ultrasonic flowmeter is one of the most widely used devices in flow measurement. Traditional bulk piezoelectric ceramic transducers restrict their application to small pipe diameters. In this paper, we propose an ultrasonic gas flowmeter based on a P
Externí odkaz:
https://doaj.org/article/6f497b85fca74079b80d0e76681f5e6e
Autor:
Chengqian Li, Jianguo Wu, Xiaoyong Pan, Hanjie Dou, Xueguan Zhao, Yuanyuan Gao, Shuo Yang, Changyuan Zhai
Publikováno v:
Agriculture, Vol 13, Iss 12, p 2203 (2023)
Repeated and missed spraying are common problems during the working of boom sprayers, especially in the breakpoint continuous process. Therefore, the present study investigated a breakpoint continuous spraying system for automatic-guidance boom spray
Externí odkaz:
https://doaj.org/article/b3d5138c78e147f884721b0577b754b8
Autor:
Feixiang Yuan, Chenchen Gu, Kechuan Yi, Hanjie Dou, Si Li, Shuo Yang, Wei Zou, Changyuan Zhai
Publikováno v:
Agriculture, Vol 13, Iss 10, p 1992 (2023)
During variable-rate spraying in orchards, the atomization characteristics and distribution of droplets in and out of the target area can be affected by the sprayer pressure. In this study, a variable-rate spraying control system test bench was desig
Externí odkaz:
https://doaj.org/article/4ecd90ca63334dedaf78b92f4b7fe418
Publikováno v:
Frontiers in Plant Science, Vol 13 (2022)
In order to explore the influencing factors and laws of ultrasonic sensor detecting wheat canopy height, designed an ultrasonic sensor detection height test platform with speed adjustable function. Taking step surface, bare soil and wheat canopy as t
Externí odkaz:
https://doaj.org/article/99a45329c9044354b06e37f89523f27a
Publikováno v:
Agronomy, Vol 13, Iss 4, p 1077 (2023)
The canopy volume of fruit trees is an important input for the precise and varying application of pesticides in orchards. The fixed mesh division method is mostly used to calculate canopy volumes with variable target-oriented spraying. To reduce the
Externí odkaz:
https://doaj.org/article/37c0483b3b9e4f9baf066f44f6653401
Publikováno v:
IEEE Access, Vol 9, Pp 17148-17160 (2021)
To ensure boom sprayer safety and spraying efficiency, the sprayer boom height must be adjusted during pesticide application. The field variation characteristics of the sprayer boom height are the basis of the boom balance adjustment. A boom height d
Externí odkaz:
https://doaj.org/article/468d6ba6e8b54d14854f1a061ea1e3cb
Publikováno v:
Agriculture, Vol 12, Iss 8, p 1241 (2022)
Orchard spraying can effectively control pests and diseases. Over-spraying commonly results in excessive pesticide residues on agricultural products and environmental pollution. To avoid these problems, variable spraying technology uses target canopy
Externí odkaz:
https://doaj.org/article/46a79f9a62f14fdc9210f07be0a24539
Publikováno v:
Agriculture, Vol 11, Iss 8, p 753 (2021)
Orchard pesticide off-target deposition and drift cause substantial soil and water pollution, and other environmental pollution. Orchard target-oriented spraying technologies have been used to reduce the deposition and drift caused by off-target spra
Externí odkaz:
https://doaj.org/article/1d4ecad949d945daab74a4484a891dfd