Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis

Detalhes bibliográficos
Autor(a) principal: Hein, Paulo Ricardo Gherardi
Data de Publicação: 2015
Outros Autores: Campos, Ana Carolina Maioli, Trugilho, Paulo Fernando, Lima, José Tarcísio, Chaix, Gilles
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/14278
Resumo: Wood basic density is indicative of several other properties and is considered a key feature for many industrial applications. Near infrared spectroscopy (NIRS) is a fast, efficient technique that is capable of estimating that property. However, it should be improved in order to complement the often time-consuming and costly conventional method. Research on wood technological properties using near infrared spectroscopy has shown promising results. Thus the aim of this study is to evaluate the efficiency of near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis. The coefficients of determination of the predictive models for cross validation ranged between 0.74 and 0.86 and the ratio performance deviation (RPD) ranged between 1.9 and 2.7. Application of spectral filter, detection and removal of outlier samples, and selection of variables (wavelength) improved the adjustment of calibrations, thereby reducing the standard error of calibration (SEC) and cross validation (SECV) as well as increasing the coefficient of determination (R²) and the RPD. The technique of near infrared spectroscopy can therefore be used for predicting wood basic density in Eucalyptus urophylla and Eucalyptus grandis.
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spelling Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandisEspectroscopia no infravermelho próximo para estimativa da densidade básica da madeira de Eucalyptus urophylla e Eucalyptus grandisNIRSWoodBasic densityEucalyptusNear infrared spectroscopy (NIRS)Regressão dos mínimos quadrados parciaisFolhosasEspectroscopia no infravermelho próximo (NIRS)Wood basic density is indicative of several other properties and is considered a key feature for many industrial applications. Near infrared spectroscopy (NIRS) is a fast, efficient technique that is capable of estimating that property. However, it should be improved in order to complement the often time-consuming and costly conventional method. Research on wood technological properties using near infrared spectroscopy has shown promising results. Thus the aim of this study is to evaluate the efficiency of near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis. The coefficients of determination of the predictive models for cross validation ranged between 0.74 and 0.86 and the ratio performance deviation (RPD) ranged between 1.9 and 2.7. Application of spectral filter, detection and removal of outlier samples, and selection of variables (wavelength) improved the adjustment of calibrations, thereby reducing the standard error of calibration (SEC) and cross validation (SECV) as well as increasing the coefficient of determination (R²) and the RPD. The technique of near infrared spectroscopy can therefore be used for predicting wood basic density in Eucalyptus urophylla and Eucalyptus grandis.A densidade básica da madeira é indicadora de várias outras propriedades, sendo considerada como característica-chave para muitas aplicações industriais. A espectroscopia no infravermelho próximo (NIRS) é uma técnica rápida, eficiente e capazde predizer essa propriedade, no entanto, deve ser aprimorada a fim de auxiliar o método convencional, que muitas vezes é demorado e oneroso. Objetivou-se, neste trabalho avaliar a eficiência da espectroscopia no infravermelho próximo para estimativa da densidade básica da madeira de Eucalyptus urophylla e Eucalyptus grandis. Os coeficientes de determinação dos modelos de predição variaramentre 0,74 e 0,86 e a relação de desempenho do desvio (RPD) variou entre 1,9 e 2,7. A aplicação de filtro espectral, a detecção e descarte de amostras anômalas (outliers) e a seleção de variáveis (comprimento de ondas) melhoraram o ajuste das calibrações,reduzindo o erro padrão da calibração e validação cruzada (SEC e SECV), e aumentando o coeficiente de determinação (R²) e a RPD.Assim, a técnica NIRS pode ser usada para estimativas da densidade básica da madeira de Eucalyptus urophylla e Eucalyptus grandis.Universidade Federal de Lavras (UFLA)2015-05-202017-08-01T20:14:06Z2017-08-01T20:14:06Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfHEIN, P. R. G. et al. Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis. CERNE, Lavras, v. 15, n. 2, p. 133-141, abr./jun. 2009.http://repositorio.ufla.br/jspui/handle/1/142782317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/197/169Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessHein, Paulo Ricardo GherardiCampos, Ana Carolina MaioliTrugilho, Paulo FernandoLima, José TarcísioChaix, Gilles2021-06-02T23:02:48Zoai:localhost:1/14278Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-06-02T23:02:48Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
Espectroscopia no infravermelho próximo para estimativa da densidade básica da madeira de Eucalyptus urophylla e Eucalyptus grandis
title Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
spellingShingle Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
Hein, Paulo Ricardo Gherardi
NIRS
Wood
Basic density
Eucalyptus
Near infrared spectroscopy (NIRS)
Regressão dos mínimos quadrados parciais
Folhosas
Espectroscopia no infravermelho próximo (NIRS)
title_short Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
title_full Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
title_fullStr Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
title_full_unstemmed Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
title_sort Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
author Hein, Paulo Ricardo Gherardi
author_facet Hein, Paulo Ricardo Gherardi
Campos, Ana Carolina Maioli
Trugilho, Paulo Fernando
Lima, José Tarcísio
Chaix, Gilles
author_role author
author2 Campos, Ana Carolina Maioli
Trugilho, Paulo Fernando
Lima, José Tarcísio
Chaix, Gilles
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Hein, Paulo Ricardo Gherardi
Campos, Ana Carolina Maioli
Trugilho, Paulo Fernando
Lima, José Tarcísio
Chaix, Gilles
dc.subject.por.fl_str_mv NIRS
Wood
Basic density
Eucalyptus
Near infrared spectroscopy (NIRS)
Regressão dos mínimos quadrados parciais
Folhosas
Espectroscopia no infravermelho próximo (NIRS)
topic NIRS
Wood
Basic density
Eucalyptus
Near infrared spectroscopy (NIRS)
Regressão dos mínimos quadrados parciais
Folhosas
Espectroscopia no infravermelho próximo (NIRS)
description Wood basic density is indicative of several other properties and is considered a key feature for many industrial applications. Near infrared spectroscopy (NIRS) is a fast, efficient technique that is capable of estimating that property. However, it should be improved in order to complement the often time-consuming and costly conventional method. Research on wood technological properties using near infrared spectroscopy has shown promising results. Thus the aim of this study is to evaluate the efficiency of near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis. The coefficients of determination of the predictive models for cross validation ranged between 0.74 and 0.86 and the ratio performance deviation (RPD) ranged between 1.9 and 2.7. Application of spectral filter, detection and removal of outlier samples, and selection of variables (wavelength) improved the adjustment of calibrations, thereby reducing the standard error of calibration (SEC) and cross validation (SECV) as well as increasing the coefficient of determination (R²) and the RPD. The technique of near infrared spectroscopy can therefore be used for predicting wood basic density in Eucalyptus urophylla and Eucalyptus grandis.
publishDate 2015
dc.date.none.fl_str_mv 2015-05-20
2017-08-01T20:14:06Z
2017-08-01T20:14:06Z
2017-08-01
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 HEIN, P. R. G. et al. Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis. CERNE, Lavras, v. 15, n. 2, p. 133-141, abr./jun. 2009.
http://repositorio.ufla.br/jspui/handle/1/14278
identifier_str_mv HEIN, P. R. G. et al. Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis. CERNE, Lavras, v. 15, n. 2, p. 133-141, abr./jun. 2009.
url http://repositorio.ufla.br/jspui/handle/1/14278
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.cerne.ufla.br/site/index.php/CERNE/article/view/197/169
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
dc.source.none.fl_str_mv 2317-6342
0104-7760
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
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institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
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