Results 31 to 40 of about 198,480 (259)

Justification the Number of Spray Tips of the Universal Fan Sprayer

open access: yesСельскохозяйственные машины и технологии, 2020
The authors noted the disadvantages of fan sprayers such as OVH-600 and VP-1, associated with uneven application of pesticides due to the oscillatory motion of the working parts, especially in the junction of adjacent passages.
A. A. Akhmetov   +2 more
doaj   +1 more source

Performance testing of field crop sprayers in the Rasina district [PDF]

open access: yesActa Agriculturae Serbica, 2018
In agricultural production, pests and diseases of agricultural crops, as well as weed plants, cause significant losses in the yield and quality of agricultural products.
Đokić Dragoslav   +6 more
doaj  

Deposição da calda de pulverização em cultivares de soja no estádio R1 Spray deposition on soybean varietes at R1 grow stage

open access: yesCiência Rural, 2009
Com o objetivo de quantificar a quantidade e a uniformidade dos depósitos da calda de pulverização em duas cultivares de soja ('CD 208' e 'CD 216'), no estádio R1, por meio de diferentes pontas e volumes de pulverização, foram conduzidos dois ...
Juana Villalba Farinha   +3 more
doaj   +1 more source

Research on Erosion Effect of Various Submerged Cavitating Jet Nozzles and Design of Self-Rotating Cleaning Device

open access: yesApplied Sciences
Submerged cavitating jets can effectively remove marine organisms from ship hulls without damaging the surface paint. To enhance the cleaning efficiency of cavitating jets, the selection of an appropriate nozzle structure and the design of an efficient ...
Siwen Huang, Jiangping Huang, Kai He
doaj   +1 more source

Evaluationof compact air-induction flat fan nozzles for herbicide applications: Spray drift and biological efficacy

open access: yesFrontiers in Plant Science, 2023
Nozzles are the most critical component of a sprayer for pesticide applications. Recently, air-induction nozzles and twin flat-fan air-induction nozzles have started to be used for herbicide applications. In order to evaluate the potential of compact air-
Shilin Wang   +6 more
doaj   +1 more source

Cavitation in Diesel Fuel Injector Nozzles and its Influence on Atomization and Spray

open access: yesChemical Engineering & Technology, 2018
In combustors, high-pressure fuel injector nozzles are employed for liquid atomization and spray generation. The internal flow within nozzles, especially cavitation, plays an important role in promoting the breakup of liquid jets. The formation mechanism
Yubiao Sun, Zhiqiang Guan, K. Hooman
semanticscholar   +1 more source

Experimental and numerical study of heat flux in dual bell nozzles

open access: yes, 2011
The characteristic contour inflection of a dual bell nozzle is the key to altitude adaption. In sea level conditions, it forces the flow to a symmetrical separation, limiting the side load generation and increasing the thrust.
Gernoth, Andreas   +5 more
core   +1 more source

Gas–liquid flow field analysis of the compressor vorticity and rotational speed based on NASA Stage 36

open access: yesThe Journal of Engineering, 2018
The aero-engine to be cleaned online can significantly improve compressor performance and increase maintenance intervals, but the cleaning online cannot achieve the anticipated effects due to the lack of cognisance of the internal multiphase flow field ...
Liwen Wang   +4 more
doaj   +1 more source

Construction and evaluation of a hollow cone type nozzle with ceramic nanocomposites [PDF]

open access: yesJournal of Agricultural Machinery, 2015
Introduction: In order to improve the use of pesticides and pesticide consumption and prevent environmental pollution, manufactures and scientists have considered two major trends.
F Amirshaghaghi, H Sharifnasab
doaj   +1 more source

Performance of Drift-Reducing Nozzles in Controlling Small Weed Seedlings with Contact Herbicides

open access: yesAgronomy, 2023
In many EU countries, spray applications should comply with increasingly stringent requirements regarding the drift reduction class of spray nozzles. Many farmers fear that the use of drift-reducing nozzles producing coarse droplet spectra may compromise
Benny De Cauwer   +5 more
doaj   +1 more source

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