Spatial variability of the noise generated by a portable harvester in a coffee field

Detalhes bibliográficos
Autor(a) principal: Ferraz, Gabriel Araújo e Silva
Data de Publicação: 2014
Outros Autores: da Silva, Flavio Castro, Nunes, Rodrigo Alencar, Ponciano, Patricia Ferreira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Coffee Science (Online)
Texto Completo: https://coffeescience.ufla.br/index.php/Coffeescience/article/view/431
Resumo: The aim of this work was to evaluate the portable harvester noise spatial distribution operating in a coffee field and to identify the workers salubrity zones. The experiment was developed in a coffee field of Acaiá Cerrado MG-1474 cultivar planted in the spacing of 3.0 m between rows and 0.6 m between plants. It is located at the Engineering Department of the Federal University of Lavras. It was used in this study a two-stroke portable harvester with 1.3 cv (25,4 cm³) and a digital decibel meter to collect the noise levels distributed in a regular sample grid of 3.0 x 5.0 m around the harvester in operation. The noise spatial dependence was evaluated by variogram adjusts and krigging interpolation. The variogram was adjustedbased on residual maximum likelihood and by a spherical model. The analyses of these data by the geostatístics techiniques allowed to characterize the spatial distribution of the produced noise and to create a noise map by krigging that will contribute to crate salubrity zones to workers involved on coffee harvest.
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spelling Spatial variability of the noise generated by a portable harvester in a coffee fieldVariabilidade espacial do ruído gerado por uma derriçadora portátil em lavoura cafeeiraSemimechanized coffee harvestgeostatisticsmappingsalubritycolheita semimecanizada do cafégeoestatísticamapeamentosalubridadeThe aim of this work was to evaluate the portable harvester noise spatial distribution operating in a coffee field and to identify the workers salubrity zones. The experiment was developed in a coffee field of Acaiá Cerrado MG-1474 cultivar planted in the spacing of 3.0 m between rows and 0.6 m between plants. It is located at the Engineering Department of the Federal University of Lavras. It was used in this study a two-stroke portable harvester with 1.3 cv (25,4 cm³) and a digital decibel meter to collect the noise levels distributed in a regular sample grid of 3.0 x 5.0 m around the harvester in operation. The noise spatial dependence was evaluated by variogram adjusts and krigging interpolation. The variogram was adjustedbased on residual maximum likelihood and by a spherical model. The analyses of these data by the geostatístics techiniques allowed to characterize the spatial distribution of the produced noise and to create a noise map by krigging that will contribute to crate salubrity zones to workers involved on coffee harvest.Objetivou-se, neste trabalho, analisar a variabilidade espacial do ruído gerado por uma derriçadora portátil lateral realizando a derriça de frutos em uma lavoura cafeeira e identificar as zonas de salubridade para os trabalhadores. O experimento foi desenvolvido em uma lavoura cafeeira da cultivar Acaiá Cerrado MG-1474, transplantadas no espaçamento 3,0 m entrelinhas e 0,6 m entre plantas, com altura média de 2,5 m, localizada no Departamento de Engenharia da Universidade Federal de Lavras (UFLA). Para a realização do experimento utilizou-se uma derriçadora portátil de motor dois tempos com potência de 1,3 cv (25,4 cm³) e um decibelímetro digital para a coleta dos níveis de ruído em pontos distribuídos numa malha amostral regular de 3,0 x 5,0 m ao redor da derriçadora em operação. A dependência espacial do ruído foi analisada por meio de ajustes de semivariogramas e interpolação por krigagem. O semivariograma foi ajustado em função da máxima verossimilhança restrita e do modelo esférico. A análise desses dados por meio das técnicas de geoestatística possibilitou caracterizar a distribuição espacial do ruído produzido e a confecção do mapa de ruído por meio da krigagem, que contribuirá na formação de zonas de salubridade para os trabalhadores envolvidos na colheita.Editora UFLA2014-01-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/431Coffee Science - ISSN 1984-3909; Vol. 8 No. 3 (2013); 276-283Coffee Science; Vol. 8 Núm. 3 (2013); 276-283Coffee Science; v. 8 n. 3 (2013); 276-2831984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/431/pdf_39Copyright (c) 2014 Coffee Science - ISSN 1984-3909https://creativecommons.org/info:eu-repo/semantics/openAccessFerraz, Gabriel Araújo e Silvada Silva, Flavio CastroNunes, Rodrigo AlencarPonciano, Patricia Ferreira2014-01-23T13:46:59Zoai:coffeescience.ufla.br:article/431Revistahttps://coffeescience.ufla.br/index.php/CoffeesciencePUBhttps://coffeescience.ufla.br/index.php/Coffeescience/oaicoffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com1984-39091809-6875opendoar:2024-05-21T19:53:41.453057Coffee Science (Online) - Universidade Federal de Lavras (UFLA)true
dc.title.none.fl_str_mv Spatial variability of the noise generated by a portable harvester in a coffee field
Variabilidade espacial do ruído gerado por uma derriçadora portátil em lavoura cafeeira
title Spatial variability of the noise generated by a portable harvester in a coffee field
spellingShingle Spatial variability of the noise generated by a portable harvester in a coffee field
Ferraz, Gabriel Araújo e Silva
Semimechanized coffee harvest
geostatistics
mapping
salubrity
colheita semimecanizada do café
geoestatística
mapeamento
salubridade
title_short Spatial variability of the noise generated by a portable harvester in a coffee field
title_full Spatial variability of the noise generated by a portable harvester in a coffee field
title_fullStr Spatial variability of the noise generated by a portable harvester in a coffee field
title_full_unstemmed Spatial variability of the noise generated by a portable harvester in a coffee field
title_sort Spatial variability of the noise generated by a portable harvester in a coffee field
author Ferraz, Gabriel Araújo e Silva
author_facet Ferraz, Gabriel Araújo e Silva
da Silva, Flavio Castro
Nunes, Rodrigo Alencar
Ponciano, Patricia Ferreira
author_role author
author2 da Silva, Flavio Castro
Nunes, Rodrigo Alencar
Ponciano, Patricia Ferreira
author2_role author
author
author
dc.contributor.author.fl_str_mv Ferraz, Gabriel Araújo e Silva
da Silva, Flavio Castro
Nunes, Rodrigo Alencar
Ponciano, Patricia Ferreira
dc.subject.por.fl_str_mv Semimechanized coffee harvest
geostatistics
mapping
salubrity
colheita semimecanizada do café
geoestatística
mapeamento
salubridade
topic Semimechanized coffee harvest
geostatistics
mapping
salubrity
colheita semimecanizada do café
geoestatística
mapeamento
salubridade
description The aim of this work was to evaluate the portable harvester noise spatial distribution operating in a coffee field and to identify the workers salubrity zones. The experiment was developed in a coffee field of Acaiá Cerrado MG-1474 cultivar planted in the spacing of 3.0 m between rows and 0.6 m between plants. It is located at the Engineering Department of the Federal University of Lavras. It was used in this study a two-stroke portable harvester with 1.3 cv (25,4 cm³) and a digital decibel meter to collect the noise levels distributed in a regular sample grid of 3.0 x 5.0 m around the harvester in operation. The noise spatial dependence was evaluated by variogram adjusts and krigging interpolation. The variogram was adjustedbased on residual maximum likelihood and by a spherical model. The analyses of these data by the geostatístics techiniques allowed to characterize the spatial distribution of the produced noise and to create a noise map by krigging that will contribute to crate salubrity zones to workers involved on coffee harvest.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-17
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://coffeescience.ufla.br/index.php/Coffeescience/article/view/431
url https://coffeescience.ufla.br/index.php/Coffeescience/article/view/431
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://coffeescience.ufla.br/index.php/Coffeescience/article/view/431/pdf_39
dc.rights.driver.fl_str_mv Copyright (c) 2014 Coffee Science - ISSN 1984-3909
https://creativecommons.org/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2014 Coffee Science - ISSN 1984-3909
https://creativecommons.org/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora UFLA
publisher.none.fl_str_mv Editora UFLA
dc.source.none.fl_str_mv Coffee Science - ISSN 1984-3909; Vol. 8 No. 3 (2013); 276-283
Coffee Science; Vol. 8 Núm. 3 (2013); 276-283
Coffee Science; v. 8 n. 3 (2013); 276-283
1984-3909
reponame:Coffee Science (Online)
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Coffee Science (Online)
collection Coffee Science (Online)
repository.name.fl_str_mv Coffee Science (Online) - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv coffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com
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