Results 41 to 50 of about 198,480 (259)

Remotely Piloted Aircraft Spraying in Coffee Cultivation: Effects of Two Spraying Systems on Drop Deposition

open access: yesAgriEngineering
The use of Remotely Piloted Aircraft (RPA) for spraying coffee crops has expanded due to their practicality and cost reduction. This study aimed to evaluate spray rate effects on coffee crops using two RPA (T10 and T20).
Aldir Carpes Marques Filho   +10 more
doaj   +1 more source

Effect of aluminum consumption and oxygen potential at final deoxidation on nozzle clogging of IF steel

open access: yes工程科学学报, 2015
By analyzing the composition and morphology of each layer IF steel clogs on the nozzle, it is found that aggregation and sintering of Al2O3 inclusions is the main reason for nozzle clogging.
LI Xiang, BAO Yan-ping, WANG Min, LIN Lu
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

Evaluation of Drift-Reducing Nozzles for Pesticide Application in Hazelnut (Corylus avellana L.)

open access: yesAgriEngineering, 2021
Spraying pesticides using air induction nozzles is a well-known method to reduce drift. These drift-reducing nozzles have been tested on many different tree crops (such as apples, citrus, and grapes), but we are still lacking information on their ...
Marcello Biocca   +4 more
doaj   +1 more source

Perfis de distribuição volumétrica de pontas XR 11003 e TXVK-4 em diferentes condições de pulverização Spray distribution patterns of the XR 11003 and TXVK-4 hydraulic nozzles under different conditions

open access: yesEngenharia Agrícola, 2004
Com o objetivo de avaliar a uniformidade da distribuição volumétrica e o efeito da angulação dos bicos na barra em pulverizações, foi conduzido experimento em laboratório, com dez unidades de cada uma das pontas de jato plano XR 11003 e de jato cônico ...
Fernando C. Bauer, Carlos G. Raetano
doaj   +1 more source

Flow patterns in circular fish tanks and its relations with flow rate and nozzle features

open access: yesScientific Reports, 2022
The main aim of this research is to study the effect of flow rate, diameter and number of nozzles on the rotational velocity, impulse force and average velocity of water in circular fish tanks.
El-Sayed Khater   +3 more
doaj   +1 more source

The Effect of Nozzle Numbers on Operation of Photovoltaic Sprinkler Irrigation Systems

open access: yesGuan'gai paishui xuebao, 2021
【Objective】 Photovoltaic has been increasingly used to power irrigation systems in China, but optimizing its power output and operating load is an issue that is poorly understood.
TAN Minggao   +4 more
doaj   +1 more source

Joint European Effort Towards Advanced Rocket Thrust Chamber Technology [PDF]

open access: yes, 2005
The achievements of the FSCD group during the last three years are described. For the case of nozzle flows in quiet ambience, new observations of the plume behaviour for truncated ideal nozzles are ...
Frey, Manuel   +10 more
core  

Experimental investigation of the inflection geometry on dual bell nozzle flow behavior

open access: yes, 2011
The altitude adaption of the dual bell nozzle is achieved by the contour inflection, leading to a symmetrical and controlled separation under sea level conditions.
Ralf Stark   +3 more
core   +1 more source

Etude des potentialités des systèmes d'application contrôlée des gouttes (CDA) pour les traitements phytosanitaires en céréaliculture (synthèse bibliographique)

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2016
Study of the potential for the use of controlled droplet application (CDA) upon cereal crops. A review. Introduction. Controlled droplet application (CDA) has the advantage both of the reduction in the span of droplet size distribution and in the volume ...
Ouled Taleb Salah, S.   +5 more
doaj  

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