Results 21 to 30 of about 107,069 (313)

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

Comparison between standard and drift reducing nozzles for pesticide application in citrus: Part II. Effects on canopy spray distribution, control efficacy of Aonidiella aurantii (Maskell), beneficial parasitoids and pesticide residues on fruit [PDF]

open access: yes, 2017
Venturi nozzles are often recommended to reduce drift, which is one of the major pollution sources caused by the application of plant protection products on high growing crops. The coarse droplets produced by this type of nozzle could however also affect
Abad, Raquel   +7 more
core   +2 more sources

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

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  

IMPROVEMENT OF SYSTEMS OF TECHNICAL WATER SUPPLY WITH COOLING TOWERS FOR STEAM POWER PLANTS TECHNICAL AND ECONOMIC INDICATORS PERFECTION. Part 1

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2016
In order to reduce the temperature of cooling water and increase the efficiency of use of power resources the main directions of modernization of systems of technical water supply with cooling towers at steam power plants are presented.
Yu. A. Zenovich-Leshkevich-Olpinskiy   +2 more
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

Relationship between spray characteristics and cooling performance for inlet air cooling of gas turbine

open access: yesNihon Kikai Gakkai ronbunshu, 2020
A suction air cooling by water spray has been used for inlet air of gas turbines. The cooling performance depends on spray characteristics and surrounding conditions.
Asuka TAKATSUKI   +7 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

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

Identification of the Sequence of Steps Intrinsic to Spheromak Formation [PDF]

open access: yes, 2006
A planar coaxial electrostatic helicity source is used for studying the relaxation process intrinsic to spheromak formation Experimental observations reveal that spheromak formation involves: (1) breakdown and creation of a number of distinct, arched ...
Bellan, P. M., You, S., Yun, G. S.
core   +1 more source

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