Results 91 to 100 of about 14,421 (309)

Nota científica: padrão de distribuição de alguns bicos hidráulicos Distribution pattern of some hydraulic spray nozzles

open access: yesPlanta Daninha, 1983
O conhecimento sobre o padrão de deposição de bicos pulverizados é essencial para uma boa seleção e posicionamento dos mesmos em um equipamento pulverizador.
J.C. Galli, T. Matuo, E.C. Siqueira
doaj   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing—Part II: Processability by Powder Bed Fusion of Metals Using a Laser Beam

open access: yesAdvanced Engineering Materials, EarlyView.
In this manuscript, the processability of X2CrNiMo17‐12‐2 powder coated with silicon carbide, silicon, and silicon nitride nanoparticles is investigated. The amount of nanoparticles varies from 0.25 to 1 vol%. By coating the powder feedstock material with nanoparticles, an enlargement of the process window and an increase in the build rate are achieved.
Nick Hantke   +5 more
wiley   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing – Part I: Surface, Flowability, and Optical Properties of SiC, Si, and Si3N4 Coated Metal Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, silicon‐based nanoparticle coatings on X2CrNiMo17‐12‐2 metal powder are presented. The coating process scale, process parameters, nanoparticle size (65–200 nm) as well as the coating amount are discussed regarding powder properties. The surface roughness affects the flowability, while reflectance depends on the coating material and surface ...
Arne Lüddecke   +4 more
wiley   +1 more source

Geometry‐Assisted Phase Selection: Interplay of Phase Heterogeneity and Geometry in Gyroid Shell Metamaterials Printed with 17‐4 PH Stainless Steel

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores geometry‐driven phase evolution in gyroid shell metamaterials made via laser powder bed fusion of 17‐4 precipitation hardened stainless steel. Locally hardened regions develop along the primary loading paths in the structure, which finite element analysis and geometric considerations link to enhanced gyroid strength.
Julia T. Pürstl   +8 more
wiley   +1 more source

Design, Construction, and Optimization of Performance of Electrodynamic Spraying Head of Atomizer Motorized Knapsack Sprayer [PDF]

open access: yesJournal of Agricultural Machinery
IntroductionDue to the increasing need for agricultural products, protection of products against pathogens and preventing them from being wasted is important.
M. Rezaei, J. Khodaei, B. Astinchap
doaj   +1 more source

Spray Deposition for Solvent Annealing of Hybrid Poly(3,4‐Ethylenedioxythiophene) Polystyrene Sulfonate Cellulose Silver Nanowire Composite Electrodes Using a Roll‐to‐Roll Coater

open access: yesAdvanced Engineering Materials, EarlyView.
The fabrication and post‐treatment via solvent annealing of poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate‐based electrodes using spray deposition in a roll‐to‐roll setup are presented. The decrease in sheet resistance and its correlation with nanostructure and molecular structure in the electrodes as a function of the processing parameters is ...
Marie Betker   +10 more
wiley   +1 more source

Development of two portable patternators to improve drift control and operator training in the operation of vineyard sprayers

open access: yesSpanish Journal of Agricultural Research, 2013
Spray drift can be defined as the quantity of plant protection product that is carried out of the sprayed area by the action of air currents during the application process.
E. Gil   +3 more
doaj   +1 more source

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