Spray Nozzle
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. PERFORMANCE OF AIR INDUCTION SPRAY NOZZLE MODELS UNDER DIFFERENT OPERATING CONDITIONS
ABSTRACT For the successful application of phytosanitary products, it is essential to understand the spraying process well. The present work aims to evaluate the spectrum and speed of the droplets produced by different spray nozzle models with air induction, working under different operating conditions. The experiment was conducted using an entirely randomiz
Eng. Agríc.. Publicado em: 2020-12
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2. The automatic selection of hydraulic spray nozzles based on the psychrometric air conditions in hydropneumatic sprayers
ABSTRACT The aim of the current study is to develop an electronic system capable of automatically replacing hydraulic spray nozzles, based on psychrometric air conditions such as temperature and relative air humidity, in order to help improving the efficiency of application technologies. The system comprised one microcontroller, two solenoid valves, one temp
Rev. Ceres. Publicado em: 2020-02
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3. Influence of working pressure and spray nozzle on the distribution of spray liquid in manual backpack sprayers
RESUMO O uso de pulverizadores costais manuais no Brasil é amplamente disseminado em propriedades rurais. Entretanto, são escassos os trabalhos de pesquisa que avaliem as suas características de trabalho, sobretudo modelos de ponta de pulverização e condições de pressão de trabalho. Desta forma, o objetivo deste trabalho foi avaliar quanto os modelos
Arq. Inst. Biol.. Publicado em: 02/12/2019
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4. Efficacy of Imazamox with Centrifugal Energy Spray Nozzle on Eichhornia crassipes and Economic Analysis of Control Viability
RESUMO: Neste estudo foi avaliada a eficácia do imazamox para controle de E. crassipes, com bico de pulverização de energia centrífuga em doses e volumes de calda de pulverização e comparação do custo de controle mecânico e químico de plantas aquáticas. Foram utilizadas as doses de 200, 400 e 600 g i.a. ha-1 de imazamox e volumes de calda de 25, 5
Planta daninha. Publicado em: 17/10/2019
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5. EVALUATION OF DROPLET SPECTRA OF THE SPRAY TIP AD 11002 USING DIFFERENT TECHNIQUES
ABSTRACT Knowledge of droplet spectra generated by spray nozzle tips is important to ensure the quality of applications of plant protection products. However, there are different methods for this evaluation, which can cause difficulty in interpreting the results. This study aimed to evaluate the droplet spectra produced by the flat fan spray tip AD 11002 ope
Eng. Agríc.. Publicado em: 12/08/2019
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6. Fungicide application technology for controlling the sugarcane orange rust
RESUMO Com o surgimento epidêmico da ferrugem alaranjada da cana-de-açúcar, aplicações de fungicidas dos grupos químicos Estrobilurinas e Triazóis tornaram-se necessárias para as variedades suscetíveis. Objetivou-se avaliar as condições operacionais de aplicação de fungicidas em cana-de-açúcar (variedade SP81-3250), no que se refere à deposi�
Pesqui. Agropecu. Trop.. Publicado em: 08/04/2019
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7. Potential risk of drift from inclined fan nozzles
RESUMO O controle de pragas, doenças e plantas daninhas nas culturas de larga escala dependem da aplicação de produtos fitossanitários. Estas aplicações estão sujeitas a diversos fatores que podem levar à deriva. O objetivo deste trabalho foi avaliar a deriva de pontas de pulverização de jato plano inclinado. A deriva foi coletada em túnel de vent
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-03
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8. SPRAY NOZZLES PERFORMANCE IN FUNGICIDES APPLICATIONS FOR ASIAN SOYBEAN RUST CONTROL
ABSTRACT: The performance of fungicides in controlling Asian soybean rust depends, in part, the spray quality of these products. The market of components to spray offers new types of nozzles which generate droplets with different characteristics. This study aimed to verify whether applications of fungicides with different spray nozzles interfere in soybean r
Eng. Agríc.. Publicado em: 2017-08
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9. BRILLIANT BLUE DYE REMOVAL IN FUNGICIDE SPRAYING
ABSTRACT The method used for removal of brilliant blue dye may have an influence in interpreting the results of spraying deposition studies. The aim of this study was to assess the number of washings and water volumes for brilliant blue dye removal from soybean leaflets and glass slides in fungicide sprayings with and without adjuvants. A completely randomiz
Eng. Agríc.. Publicado em: 2017-06
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10. DROPLET SPECTRA AND SURFACE TENSION OF SPRAY SOLUTIONS BY BIOLOGICAL INSECTICIDE AND ADJUVANTS
ABSTRACT Biological insecticides can be another pest control method used in integrated pest management; hence there is a demand for scientific information about these products to understand the appropriate application technique. The aim of this study was to evaluate the spray spectra data by different nozzle types using biological insecticide isolated and wi
Eng. Agríc.. Publicado em: 2017-04
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11. Engineering spray-dried rosemary extracts with improved physicomechanical properties: a design of experiments issue
ABSTRACT A 33 Box–Behnken design and Response Surface Methodology were performed to evaluate the influence of extract feed rate, drying air inlet temperature and spray nozzle airflow rate on the process yield, stability parameters (moisture content and water activity) and on several physicomechanical properties of spray-dried rosemary extracts. Powder yiel
Rev. bras. farmacogn.. Publicado em: 2017-04
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12. Fractal analysis of agricultural nozzles spray
Fractal scaling of the exponential type is used to establish the cumulative volume (V) distribution applied through agricultural spray nozzles in size x droplets, smaller than the characteristic size X. From exponent d, we deduced the fractal dimension (Df) which measures the degree of irregularity of the medium. This property is known as 'self-similarity'.
Scientia Agricola. Publicado em: 2012-02