Results 11 to 20 of about 12,867 (266)

Advances in developing a new test method to assess spray drift potential from air blast sprayers

open access: yesSpanish Journal of Agricultural Research, 2017
Drift is one of the most important issues to consider for realising sustainable pesticide sprays. This study proposes and tests an alternative methodology for quantifying the drift potential (DP) of air blast sprayers, trying to avoid the difficulties ...
Marco Grella   +4 more
doaj   +1 more source

Diagnostics of water sprays for cooling suction air of gas turbine

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Water spray is used for cooling suction air of gas turbine for power augmentation. Cooling efficiency depends on the spraying properties. The aim of this study is to investigate the spray characteristics and the influence of secular change in the spray ...
Keitaro MOTOI   +4 more
doaj   +1 more source

Improving Homogeneity of 3D-Printed Cementitious Material Distribution for Radial Toolpath

open access: yesFluids, 2023
The 3D cementitious material printing method is an extrusion-based additive manufacturing strategy in which cementitious materials are extruded through a dynamic nozzle system to form filaments.
Mingyang Li   +3 more
doaj   +1 more source

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

Improved quality of fungicide deposition and coverage of potato leaves using flat fan air-injector nozzle IDK

open access: yesActa Agriculturae Slovenica, 2012
The aim of our experiment was to improve fungicide spray deposition and coverage of potato leaves by using air-injector nozzle types. We used two standard nozzle types - a flat fan nozzle ST and a hollow cone nozzle TR, as well as a couple of air ...
Filip VUČAJNK, Rajko BERNIK
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

Distribuição volumétrica de calda produzidas pelas pontas pulverização XR, TP e TJ sob diferentes condições operacionais Volumetric distribution of the spray nozzle tips XR, TP and TJ under different operational conditions

open access: yesPlanta Daninha, 2004
Foram avaliados os perfis de distribuição volumétrica das pontas de pulverização de jato plano "Extended Range" XR 8004, "Teejet" TP 8004 e "TwinJet" TJ60-8004, em mesa de teste construída segundo a norma ISO 5.682-1:1996, sendo as pontas de pulverização
F.C. Bauer, C.G. Raetano
doaj   +1 more source

Nozzle‐Pressurized Gyration: A Novel Fiber Manufacturing Process

open access: yesMacromolecular Materials and Engineering, 2022
An innovative development of pressurized gyration is presented, incorporating a directional nozzle system. Thus, nozzle‐pressurized gyration is used to prepare polymeric fibers.
Yanqi Dai   +3 more
doaj   +1 more source

Validation of the CFD Tools against In-House Experiments for Predicting Condensing Steam Flows in Nozzles

open access: yesEnergies, 2023
The issues addressed in this work concern the condensing steam flows as a flow of a two-phase medium, i.e., consisting of a gaseous phase and a dispersed phase in the form of liquid droplets.
Sima Shabani   +5 more
doaj   +1 more source

A Comparative Study of Nozzle/Diffuser Micropumps with Novel Valves

open access: yesMolecules, 2012
This study conducts an experimental study concerning the improvement of nozzle/diffuser micropump design using some novel no-moving-part valves. A total of three micropumps, including two enhancement structures having two-fin or obstacle structure and ...
Jin-Cherng Shyu   +4 more
doaj   +1 more source

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