Emitters
Mostrando 1-12 de 53 artigos, teses e dissertações.
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1. REGULATED AIR POLLUTANT EMISSIONS FROM HIGHER EMITTERS STATIONARY SOURCES IN BELO HORIZONTE, MINAS GERAIS, BRAZIL
Abstract Belo Horizonte, capital of Minas Gerais state, is a highly urbanized city located in the third largest metropolitan area of Brazil, being one of the most important cities in the country. There are several potential air pollutant emission sources in the studied area, such as industry and the vehicular fleet (1,669,884 vehicles in 2015). These can aff
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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2. DIMSUB, a computer program for designing microirrigation subunits. Tool definition and case studies
ABSTRACT: DIMSUB is a computer program to complement a decision support tool (DST) to effectively study different hydraulic design alternatives in microirrigation systems. We developed environments in Visual Basic for applications for Microsoft Excel® that allow specific step-by-step functions to be created for the design of irrigation subunits. Different a
Sci. agric. (Piracicaba, Braz.). Publicado em: 05/09/2019
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3. Propiedades físicas y cristalinas del Cd1-xZnxTe (0 ≤ x ≤ 1)
ABSTRACT Cd1-xZnxTe (0 ≤ x ≤ 1) and ZnTe are II-VI semiconductors, which are used in single crystalline structure to improve their crystalline and electrical properties. The CZT and ZnTe must possess high crystalline and electrical quality to be used, the first in x or γ-ray detectors, and as substrates for suitable epitaxial films for detecting IR radi
Matéria (Rio J.). Publicado em: 19/07/2018
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4. STATISTICAL PROCESS CONTROL IN THE ASSESSMENT OF DRIP IRRIGATION USING WASTEWATER
ABSTRACT The aim of this study was to evaluate drip irrigation as a process, by monitoring the average flow applied by the emitter using tools of statistical quality control. Four kinds of drippers were selected, two inline labyrinth type and two online where one of the inline emitters was not self-compensating and the other, self-compensating emitter. The s
Eng. Agríc.. Publicado em: 2018-01
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5. ESTIMATION OF THE KINETIC HEAD COEFFICIENT (k) BASED ON THE GEOMETRIC CHARACTERISTICS OF EMITTER PIPES
ABSTRACT: The objective of this study was to determine the variability of the head loss as a function of the emitter geometry as well as to develop a relation between local head loss caused by the emitter insertion and geometric characteristics of the emitter pipe, using index of obstruction for dripper pipes with non-coaxial emitters. For this, an experimen
Eng. Agríc.. Publicado em: 2017-12
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6. EVALUATION OF SELF COMPENSATING EMITTERS IRRIGATING WITH SALINE WATER: PART II: PROCESS CAPABILITY INDEX
ABSTRACT The use of tools such as process capability index for irrigation aims to observe how this irrigation is adequate in terms of quality. The aim of the study was analyzing the Christiansen uniformity coefficient and the flow of a drip irrigation system with self-compensating emitters under water different salt concentrations, using the process capabili
Eng. Agríc.. Publicado em: 2016-12
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7. Architecture for ES Receiver Systems Targeted at Commercial Wireless Communications
ABSTRACT: Modern electronic support (ES) systems are descended from systems intended for the detection of small numbers of high-power radar systems, and are thus not suitable for the low-power transmitters and dense signal environments typical of commercial communication networks. A new ES-system architecture is proposed to allow the detection of large numbe
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
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8. Protótipos e avaliação de emissores para irrigação localizada subsuperficial / Prototypes and evaluation of emitters for subsurface drip irrigation
A intrusão de raiz e partículas de solo em gotejadores instalados na subsuperfície do solo, conduz à redução da uniformidade de emissão de água e compromete as condições ideais de operação e a vida útil do sistema de irrigação. Estes fatos motivaram a realização desta pesquisa, sendo propostos protótipos de emissores, cujas características
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/05/2012
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9. Estimating water application efficiency for drip irrigation emitter patterns on banana.
Abstract ? The objective of this work was to evaluate root and water distribution in irrigated banana (Musa sp.), in order to determine the water application efficiency for different drip irrigation emitter patterns. Three drip emitter patterns were studied: two 4-L h-1 emitters per plant (T1), four 4-L h-1 emitters per plant (T2), and five 4-L h-1 emitters
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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10. Estimating water application efficiency for drip irrigation emitter patterns on banana.
The objective of this work was to evaluate root and water distribution in irrigated banana (Musa sp.), in order to determine the water application efficiency for different drip irrigation emitter patterns. Three drip emitter patterns were studied: two 4-L h-1 emitters per plant (T1), four 4-L h-1 emitters per plant (T2), and five 4-L h-1 emitters per plant (
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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11. Coeficiente de descarga em emissores de pivô central / Discharge coefficient for center pivot emitters
A crescente busca por tecnologias com melhor desempenho energético faz com que a engenharia da irrigação desenvolva emissores que apresentem coeficientes de descarga mais elevados. O presente trabalho teve como objetivo determinar os coeficientes de descarga dos emissores comerciais (Senninger, Nelson e Fabrimar), utilizados em sistema de irrigação piv�
Publicado em: 2011
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12. POSIÇÃO DOS GOTEJADORES E COBERTURA DO SOLO COM PLÁSTICO, CRESCIMENTO RADICULAR, PRODUTIVIDADE E QUALIDADE DO MELÃO / EMITHERS POSITION AND SOIL MULCHING WITH BLACK PLASTIC, ROOT GROWTH, YELD AND QUALITY OF MELON
Surface drip irrigation is widespread for the melon crop. To improve the efficiency of this system subsurface drip irrigation and plastic mulching can be used. These management practices can influence soil moisture, and growth and development of plants and hence fruit yeld and quality of melon. Root system can give good information for the design of the irri
Publicado em: 2010