Results 51 to 60 of about 349,634 (298)

Characteristics of unmanned aerial spraying systems and related spray drift: A review

open access: yesFrontiers in Plant Science, 2022
Although drift is not a new issue, it deserves further attention for Unmanned Aerial Spraying Systems (UASS). The use of UASS as a spraying tool for Plant Protection Products is currently explored and applied worldwide. They boast different benefits such as reduced applicator exposure, high operating efficiency and are unconcerned by field-related ...
Chen, Pengchao   +6 more
openaire   +5 more sources

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner   +22 more
wiley   +1 more source

Dual Base Swirl Injector Design for Increasing Specific Impluse in a Liquid-Fuel Rocket Engine [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2009
Optimized injectors spray and consequently their proper fluid distribution is one of the most important factors determining the thrust force and combustion stability.
F. Ommi, A. Kargar, S. M. Hosseinalipour
doaj  

Experimental Investigation on the Effects of Injection Parameters on the Air-Assisted Diesel Spray Characteristics

open access: yesInternational Journal of Aerospace Engineering, 2022
The air-assisted fuel injection (AAFI) system may be installed in the spark ignition aviation piston engine for the atomization of heavy fuels. However, studies on the effects of injection parameters on the spray characteristics are insufficient, which ...
Bingxuan Du, Zhenfeng Zhao
doaj   +1 more source

Modelling the Effect of Process Parameters on the Wet Extrusion and Spheronisation of High-Loaded Nicotinamide Pellets Using a Quality by Design Approach [PDF]

open access: yes, 2019
Open access articleThe aim of the present study was to develop an alternative process to spray granulation in order to prepare high loaded spherical nicotinamide (NAM) pellets by wet extrusion and spheronisation.
Keppler, Julia K   +4 more
core   +2 more sources

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim   +4 more
wiley   +1 more source

Comprehensive Spray Characteristics of Water in Port Fuel Injection Injector

open access: yesEnergies, 2020
The objective of this study was to compare the injection and spray characteristics of water with n-heptane using a port fuel injection (PFI) system. In this study, the injection pressure was changed to 0.3−0.9 Mpa and the energizing duration was ...
Jeonghyun Park   +2 more
doaj   +1 more source

Flow control of agricultural spraying machines : a thesis in partial fulfilment of the requirements for the degree of Master of Engineering in Mechatronics, Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 2016
New Zealand relies heavily on its agricultural industry. A large portion of this industry is pastoral farming, where livestock are raised to graze on pasture. This includes beef, sheep and dairy farming.
Hall, Tobin
core  

Attenuation of Infrared Radiation When Passing Through a Water Curtain [PDF]

open access: yes, 2017
This article focuses on the interaction of infrared (IR) radiation with water droplets. The main objective of the article is the production of water mist in order of evaluation the reduction in intensity of IR radiation. In the experiments described in
Balner, Dalibor   +2 more
core   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

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