Atomizer
Mostrando 1-12 de 32 artigos, teses e dissertações.
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1. SPRAY DRIFT AND CATERPILLAR AND STINK BUG CONTROL FROM AERIAL APPLICATIONS WITH ELECTROSTATIC CHARGE AND ATOMIZER ON SOYBEAN CROP
ABSTRACT: The use of aerial application with electrostatic charge is an alternative to improve the quality of insecticide applications in soybean crop. The objective of this study was to evaluate the drift and chemical control of the caterpillar and stink bug complex promoted by aerial applications of insecticide in the soybean crop, using electrostatic spra
Eng. Agríc.. Publicado em: 2017-12
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2. SPRAY DRIFT AND PEST CONTROL FROM AERIAL APPLICATIONS ON SOYBEANS
ABSTRACT Pesticide drift is an issue in modern farming, mainly for crops under constant spraying as soybeans. This study aimed at assessing drift and pest control for aerial applications in soybean crops. Hydraulic nozzles and rotary atomizers, regulated to a wide spectrum of droplet sizes, sprayed thiamethoxam plus lambda-cyhalothrin using an agricultural a
Eng. Agríc.. Publicado em: 2017-06
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3. BLADE ANGLE EFFECT ON DROPLET SIZE SPECTRUM OF ROTARY ATOMIZERS USED IN BRAZIL
ABSTRACT The effect of blade angle on droplet size spectrum of five rotary cage atomizers and one rotary disc atomizer used in Brazil was evaluated in a high speed wind tunnel, with an air speed of 180 km h−1. This study included the characterization of the droplet size spectrum, via laser diffraction instrument, generated by three blades angles, of 45, 60
Eng. Agríc.. Publicado em: 2016-12
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4. Effect of two dosages of Metarhizium anisopliae var. acridum against Rhammatocerus schistocercoides Rehn.
The fungs Metarhizizium anisopliae var. acridum, strain CG 423, was tested under fiel conditions against the gregarious grasshopper Rhannatocerus schistocercoides (Rehn) (Orthoptera: Acrididae). Conidia formulated in a rancemic mixture of soybean oil and kerosene were sprayed under field conditions using na ultralow-volume hand-held atomizer Ulva Plus adjust
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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5. Effect of two dosages of Metarhizium anisopliae var. acridum against Rhammatocerus schistocercoides Rehn.
The fungus Metarhizium anisopliae var. acridum, strain CG 423, was tested under field conditions against the gregarious grasshopper Rhammatocerus schistocercoides (Rehn) (Orthoptera: Acrididae). Conidia formulated in a racemic mixture of soybean oil and kerosene were sprayed under field conditions using an ultralow-volume hand-held atomizer Ulva Plus adjuste
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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6. Controle biológico do percevejo-de-renda da seringueira com o uso de micoinseticida formulado em óleo emulsionável.
RESUMO: Atualmente existem ao redor de 60 mil hectares cultivados com seringais nas áreas de escape, onde o percevejo-de-renda Leptopharsa heveae é considerado como o principal inseto-praga. Este trabalho foi desenvolvido como o objetivo de avaliar a eficiência do fungo Sporothrix insectorum formulado em óleo emulsionável no controle do percevejo-de-ren
Planaltina. Publicado em: 2011
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7. Análise de um queimador infravermelho funcionando com combustível híbrido : GLP/Bio-óleo
A biomassa é considerada a maior fonte renovável de energia, podendo ser usada de forma ambientalmente sustentável. A partir da pirólise da biomassa é possível a obtenção de produtos com maior densidade energética e propriedades de uso melhores. O líquido resultante do seu processo é tradicionalmente chamado de bio-óleo. A utilização de queimad
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/11/2010
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8. Construção de espectrômetro de emissão atômica com atomização eletrotérmica em filamento de tungstênio (WCAES)
It is here discussed the development of a low cost analytical instrument with capacity for metals determination using atomic emission measurements in an electrothermal atomization system with a tungsten coil atomizer. The main goal was to show a new frontier for using this atomizer and to demonstrate that the simple instrumental arrangement here proposed has
Química Nova. Publicado em: 2010
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9. Influence of Na, K, Ca and Mg on lead atomization by tungsten coil atomic absorption spectrometry
A atomização de chumbo em atomizador eletrotérmico de filamento de tungstênio, na presença e ausência de altas concentrações de Na+, K+, Ca2+ e Mg2+, foi investigada com o objetivo de entender os processos de interferências. A atomização do chumbo foi menos comprometida por Ca2+ e Mg2+ do que por Na+ e K+. Na ausência dos concomitantes, a eficiê
Publicado em: 2010
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10. DETERMINATION OF SN IN HUMAN MILK BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY / DETERMINAÇÃO DE SN EM LEITE HUMANO POR ESPECTROMETRIA DE ABSORÇÃO ATÔMICA NO FORNO DE GRAFITE
Tin is a metal of natural occurrence which is mainly extracted from the mineral cassiterite, SnO2. Tin may be released to the atmosphere from both natural and anthropogenic sources. In nature, it occurs in both inorganic and organic forms, and the shorter the organic chain associated to the metal, the higher the toxicity of the compound. Organotin compounds
Publicado em: 2008
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11. Estudo experimental e de simulação da fluidodinâmica e recobrimento em leito de jorro
The spouted bed technique has found application in many industrial processes such as drying of granular materials, blending of polymer chips, coating of tablets, and granulation of fertilizers and other materials. Although has an extensive application, the mechanisms of solids movement in spouted beds are still not completely understood. The knowledge of the
Publicado em: 2006
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12. "Comparative evaluation of procedures for agroindustrials sample preparation in the determination of inorganic elements by spctrometric techniques" / "Avaliação comparativa de procedimentos para o preparo de amostras agroindustriais na determinação de elementos inorgânicos por técnicas espectrométricas"
Analytical comparative procedures for the preparation of three types of agro industrials samples (rocks, coffees and antibiotics) were evaluated in the determination of inorganic elements by flame atomic absorption spectrometry (FAAS), flame atomic emission spectrometry (FAES) and graphite furnace atomic absorption spectrometry (GFAAS) techniques. Six decomp
Publicado em: 2006