نتایج جستجو برای: spray angle

تعداد نتایج: 150808  

2013
Victoria Fernández Patrick H. Brown

The application of agrochemical sprays to the aerial parts of crop plants is an important agricultural practice world-wide. While variable effectiveness is often seen in response to foliar treatments, there is abundant evidence showing the beneficial effect of foliar fertilizers in terms of improving the metabolism, quality, and yields of crops. This mini-review is focused on the major bottlene...

2017
Pengrui Jin Chuan Huang Jiaxiang Li Yadong Shen Liao Wang

The wetting of hollow fibre membranes decreases the performance of the liquid-gas membrane contactor for CO2 capture in biogas upgrading. To solve this problem, in this work, a poly(vinylidene fluoride) (PVDF) hollow fibre membrane for a liquid-gas membrane contactor was coated with a superhydrophobic layer composed of a combination of hydrophobic SiO2 nanoparticles and polydimethylsiloxane (PD...

2009
Pascal Braekman

As a result of the decreasing availability of authorized plant protection products, adequate pest control becomes more difficult in many ornamental crops and almost no information is available about the optimization of spray application techniques in ornamental crops. Yet, spray boom systems—instead of the still predominantly used spray guns—might improve crop protection management in greenhous...

Journal: :Applied sciences 2023

Salt spray splashing on the structural surfaces of ships is a common difficulty in polar navigation. In this paper, experiments are designed to study variation growth peak pure water droplets surface hydrophobic coating with contact angle 90°, and numerical simulation method verified according experiment. The calculated by consistent experiment, calculation error freezing time obtained less tha...

2016
Bradley K. Fritz W. Clint Hoffmann

When making an application of any crop protection material such as an herbicide or pesticide, the applicator uses a variety of skills and information to make an application so that the material reaches the target site (i.e., plant). Information critical in this process is the droplet size that a particular spray nozzle, spray pressure, and spray solution combination generates, as droplet size g...

2008
M W Findlay S R Turnock

The adoption of hydrofoils in the International Moth class of dinghy has posed new challenges to sailors both in terms of the set-up of the boat and hydrofoils, and their sailing techniques and styles. The experience of sailors in the class indicates that the height above the water surface at which the boat is flown (ride height) and the amount of windward heel (heel angle) are critical factors...

2007
C. X. Bai H. Rusche A. D. Gosman

This paper is concerned with aspects of gasoline spray droplet impingement simulation, for which an improved model has been developed for predicting the outcomes of spray droplets impacting on a wall. The model is assessed by simulating experiments on oblique spray impingement in a wind tunnel. This is done with the aid of a specially-devised procedure for deducing the specification of initial ...

2013
Chutima Sinsuebpol Jittima Chatchawalsaisin Poj Kulvanich

PURPOSE The aim of the present study was to prepare inhalable co-spray dried powders of salmon calcitonin loaded chitosan nanoparticles (sCT-CS-NPs) with mannitol and investigate pulmonary absorption in rats. METHODS The sCT-CS-NPs were prepared by the ionic gelation method using sodium tripolyphosphate (TPP) as a cross-linking polyion. Inhalable dry powders were obtained by co-spray drying a...

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