| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
22/12/1999 |
|
Data da última atualização: |
20/06/2018 |
|
Autoria: |
CRUVINEL, P. E.; MINATEL, E. R.; MUCHERONI, M. L.; VIEIRA, S. R.; CRESTANA, S. |
|
Título: |
An automatic method based on image processing for measurements of drop size distribution from agricultural sprinklers. |
|
Ano de publicação: |
1996 |
|
Fonte/Imprenta: |
In: SIMPOSIO BRASILEIRO DE COMPUTACAO GRAFICA E PROCESSAMENTO DE IMAGENS, 9., out. 1996, Caxambu, MG. Anais do SIBGRAPI 96. Caxambu: SBC/UFMG, 1996. |
|
Páginas: |
p. 39-46. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The drop size distribution of sprinkler spray is of practical importance for two reasons. The first one is because the small droplets are subject to wind drift, distorting the application pattern. Second, large droplets possess greater kinetic energy which is transferred to the soil surface causing particle dislodgment and pudding that may result in surface crusting and runoff. We present in this paper a technique based on image processing for measure drop size distribution from agricultural sprinklers in automatic mode. This technique has the advantage of being a direct measurement method that allows to know the characteristics of agricultural sprinklers, which allows to study the effects of pressure and nozzle size on the distributions. The method was obtained using properties of the Fourier for correlation analysis in frequency domain. Results allow both farmers to change on existing irrigation systems to cope with field problems caused by low intake rates and runoff and development work to improve the uniformity of distribution of sprays from agricultural sprinklers. |
|
Palavras-Chave: |
Agricultural instrumentation; Agricultural sprinklers; Correlacao; Image; Imagem; Instrumentacao agropecuaria; Method. |
|
Thesagro: |
Irrigação; Método. |
|
Thesaurus Nal: |
correlation; irrigation; sprinklers. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02086naa a2200325 a 4500
001 1026990
005 2018-06-20
008 1996 bl --- 0-- u #d
100 1 $aCRUVINEL, P. E.
245 $aAn automatic method based on image processing for measurements of drop size distribution from agricultural sprinklers.
260 $c1996
300 $ap. 39-46.
520 $aThe drop size distribution of sprinkler spray is of practical importance for two reasons. The first one is because the small droplets are subject to wind drift, distorting the application pattern. Second, large droplets possess greater kinetic energy which is transferred to the soil surface causing particle dislodgment and pudding that may result in surface crusting and runoff. We present in this paper a technique based on image processing for measure drop size distribution from agricultural sprinklers in automatic mode. This technique has the advantage of being a direct measurement method that allows to know the characteristics of agricultural sprinklers, which allows to study the effects of pressure and nozzle size on the distributions. The method was obtained using properties of the Fourier for correlation analysis in frequency domain. Results allow both farmers to change on existing irrigation systems to cope with field problems caused by low intake rates and runoff and development work to improve the uniformity of distribution of sprays from agricultural sprinklers.
650 $acorrelation
650 $airrigation
650 $asprinklers
650 $aIrrigação
650 $aMétodo
653 $aAgricultural instrumentation
653 $aAgricultural sprinklers
653 $aCorrelacao
653 $aImage
653 $aImagem
653 $aInstrumentacao agropecuaria
653 $aMethod
700 1 $aMINATEL, E. R.
700 1 $aMUCHERONI, M. L.
700 1 $aVIEIRA, S. R.
700 1 $aCRESTANA, S.
773 $tIn: SIMPOSIO BRASILEIRO DE COMPUTACAO GRAFICA E PROCESSAMENTO DE IMAGENS, 9., out. 1996, Caxambu, MG. Anais do SIBGRAPI 96. Caxambu: SBC/UFMG, 1996.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
|
Data corrente: |
08/01/2015 |
|
Data da última atualização: |
24/02/2015 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
SCHULTZ, B.; FORMAGGIO, A. R.; ATZBERGER, C.; LUIZ, A. J. B.; GOLTZ, E.; MELLO, M. P. |
|
Afiliação: |
Bruno Schultz, Remote Sensing Division, Brazilian National Institute for Space Research, Brazil; Antonio Roberto Formaggio, Remote Sensing Division, Brazilian National Institute for Space Research, Brazil; Clement Atzberger, Institute of Surveying, Remote Sensing and Land Information, Department of Landscape, Spatial and Infrastructures Science, University of Natural Resources and Life Sciences, Vienna, Austria; ALFREDO JOSE BARRETO LUIZ, CNPMA; Elizabeth Goltz; Marcio Pupin Mello. |
|
Título: |
Dynamic of sugarcane harvested areas in São Paulo state, Brazil, over the last two decades. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
GLOBAL LAND PROJECT, OPEN SCIENCE MEETING, 2., 2014, Berlim. Land Transformations: between global challenges and local realities. Proceedings... Berlim: International Geosphere-Biosphere Programme, 2014. |
|
Páginas: |
p. 512-513. |
|
Idioma: |
Português |
|
Palavras-Chave: |
Agro-dynamic model; Sugarcane expansion. |
|
Thesagro: |
Cana de açúcar; Modelo matemático. |
|
Thesaurus NAL: |
Mathematical models; Sugarcane. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118625/1/2014RA-006.pdf
|
|
Marc: |
LEADER 00879nam a2200241 a 4500
001 2004841
005 2015-02-24
008 2014 bl uuuu u00u1 u #d
100 1 $aSCHULTZ, B.
245 $aDynamic of sugarcane harvested areas in São Paulo state, Brazil, over the last two decades.$h[electronic resource]
260 $aGLOBAL LAND PROJECT, OPEN SCIENCE MEETING, 2., 2014, Berlim. Land Transformations: between global challenges and local realities. Proceedings... Berlim: International Geosphere-Biosphere Programme$c2014
300 $ap. 512-513.
650 $aMathematical models
650 $aSugarcane
650 $aCana de açúcar
650 $aModelo matemático
653 $aAgro-dynamic model
653 $aSugarcane expansion
700 1 $aFORMAGGIO, A. R.
700 1 $aATZBERGER, C.
700 1 $aLUIZ, A. J. B.
700 1 $aGOLTZ, E.
700 1 $aMELLO, M. P.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
