Results 31 to 40 of about 276,192 (314)

Droplet Deposition and Efficacy of Real-Time Variable-Rate Application of Herbicides at Reduced Dose in Winter Wheat Fields

open access: yesAgronomy
Using an intelligent plant protection machine for spraying herbicides at a real-time variable rate plays a key role in improving the utilization efficiency of herbicides and reducing environmental pollution.
Jinwei Zhang   +7 more
doaj   +1 more source

Generation of nanoparticles in the concentrated energy (laser beam) and gas flow

open access: yesAviation, 2004
The method of generation and selection of small nanoparticles in the airflow is considered in this paper. To melt the material (stainless steel), a concentrated energy flow – a pulsed solid‐state laser beam – was used.
Arūnas Severas Amulevičius   +3 more
doaj   +1 more source

Modeling of Vegetable Oil Miscellaneous Drive Process in Final Distiller Spray Zone

open access: yesProceedings of the International Conference on Applied Innovations in IT, 2023
This work discusses the kinetics of the separation process of a solution consisting of vegetable oil and a low-boiling hydrocarbon solvent in a distillation process.
Abduhoshim Qadirov   +4 more
doaj   +1 more source

Effects of Jet Density and Exit Velocity Distribution on the Relationship between Preferred Frequency and Jet Diffusion

open access: yesJournal of Fluid Science and Technology, 2013
This report aims to clarify the relationship between the preferred frequency and jet diffusion. The disturbance frequency used to control mixing, based on the preferred frequency of a flow in the initial area of the jet column mode, is often selected ...
Yuki KAWAI, Motoaki KIMURA
doaj   +1 more source

Numerical Modelling of the Multiphase Flow in an Agricultural Hollow Cone Nozzle

open access: yesApplied Sciences
In the field of agriculture, various types of pesticides are used to control crop pests. These chemical agents are applied using nozzles with different geometries.
Paweł Karpiński   +2 more
doaj   +1 more source

Similarity Law on Shedding Frequency of Cavitation Cloud Induced by a Cavitating Jet

open access: yesJournal of Fluid Science and Technology, 2012
In order to clarify the mechanism of cavitation cloud shedding, the shedding frequencies of cavitation clouds were investigated by high-speed observations and image analysis. The results indicate that the shedding frequency follows the similarity law for
Satoshi NISHIMURA   +2 more
doaj   +1 more source

Constant-output atomizer [PDF]

open access: yes, 1983
A constant-output atomizer includes a body which has a generally frustoconical expansion nozzle for producing an air jet when a supply of pressurized air is connected to the nozzle upstream of the throat of the nozzle.
Dea, J. Y.
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Mathematical model of foam expansion rate generated in sprinklers

open access: yesMagazine of Civil Engineering
Foam solution discharge is always accompanied by changes in the operating pressure due to different pressure losses along the pipeline in automatic foam extinguishing systems.
Kamluk Andrei   +3 more
doaj   +1 more source

Lance Design for Scrap Melting Aggregates

open access: yesTehnički Glasnik, 2021
Metallurgical aggregates, which are used for metal waste melting, are equipped with lances for blowing gaseous media. These gaseous media allow especially scrap melting and intense homogenization of the resulting melt.
Ladislav Kovar, Pavel Novak, Tomas Hapla
doaj  

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