Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://www.cerne.ufla.br/site/index.php/CERNE/article/view/947 http://repositorio.ufla.br/jspui/handle/1/14544 |
Resumo: | This study aimed to analyze use of near infrared spectroscopy (NIRS) to estimate wood density of Eucalyptus grandis. For that, 66 27-year-old trees were logged and central planks were removed from each log. Test pieces 2.5 x 2.5 x 5.0 cm in size were removed from the base of each plank, in the pith-bark direction, and subjected to determination of bulk and basic density at 12% moisture (dry basis), followed by spectral readings in the radial, tangential and transverse directions using a Bruker Tensor 37 infrared spectrophotometer. The calibration to estimate wood density was developed based on the matrix of spectra obtained from the radial face, containing 216 samples. The partial least squares regression to estimate bulk wood density of Eucalyptus grandis provided a coefficient of determination of validation of 0.74 and a ratio performance deviation of 2.29. Statistics relating to the predictive models had adequate magnitudes for estimating wood density from unknown samples, indicating that the above technique has potential for use in replacement of conventional testing. |
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Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopyPredição da massa específica de Eucalyptus grandis W. Hill ex Maiden por espectroscopia no infravermelho próximoNear infrared spectroscopyEucalyptus - Bulk densityHardwoodEucalyptus - Densidade aparente This study aimed to analyze use of near infrared spectroscopy (NIRS) to estimate wood density of Eucalyptus grandis. For that, 66 27-year-old trees were logged and central planks were removed from each log. Test pieces 2.5 x 2.5 x 5.0 cm in size were removed from the base of each plank, in the pith-bark direction, and subjected to determination of bulk and basic density at 12% moisture (dry basis), followed by spectral readings in the radial, tangential and transverse directions using a Bruker Tensor 37 infrared spectrophotometer. The calibration to estimate wood density was developed based on the matrix of spectra obtained from the radial face, containing 216 samples. The partial least squares regression to estimate bulk wood density of Eucalyptus grandis provided a coefficient of determination of validation of 0.74 and a ratio performance deviation of 2.29. Statistics relating to the predictive models had adequate magnitudes for estimating wood density from unknown samples, indicating that the above technique has potential for use in replacement of conventional testing. Conduziu-se este estudo, com o objetivo de analisar a espectroscopia no infravermelho próximo (NIR) aplicada à predição da massa especifica da madeira de Eucalyptus grandis. Foram coletadas 66 árvores, com 27 anos de idade, transformadas em pranchões centrais e, da base de cada pranchão foram retirados os corpos de prova, medindo 2,5 x 2,5 x 5,0 cm, no sentido medula-casca, destinados à determinação da massa especifica (aparente e básica ambas a 12% de umidade base seca) e, posterior obtenção dos espectros em espectrofotômetro de infravermelho, da marca Bruker, Tensor 37, conforme os sentidos radial, tangencial e transversal. A calibração para predizer a massa específica da madeira foi ajustada a partir da matriz de espectros obtidos a partir da face radial contendo 216 amostras. A regressão dos mínimos quadrados parciais para a estimativa da massa especifica aparente da madeira de Eucalyptus grandis apresentou coeficiente de determinação em validação de 0,74 e relação de desempenho do desvio de 2,29. As estatísticas associadas aos modelos preditivos apresentaram magnitudes adequadas para estimar a densidade da madeira de amostras desconhecidas, indicando que a técnica tem potencial para substituir os ensaios convencionais.CERNE2016-04-062017-08-01T20:15:13Z2017-08-01T20:15:13Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/947ROSSO, S. et al. Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy. Cerne, Lavras, v. 19, n. 4, p. 647-652, out./dez. 2013.http://repositorio.ufla.br/jspui/handle/1/14544CERNE; Vol 19 No 4 (2013); 647-652CERNE; Vol 19 No 4 (2013); 647-6522317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/947/721Copyright (c) 2016 CERNEhttp://creativecommons.org/licenses/by/4.0/Attribution 4.0 Internationalinfo:eu-repo/semantics/openAccessRosso, SilvianaMuniz, Graciela Ines Bolzon deMatos, Jorge Luis Monteiro deHaselein, Clóvis RobertoHein, Paulo Ricardo GherardiLopes, Merielen de Carvalho2021-03-29T17:51:33Zoai:localhost:1/14544Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-03-29T17:51:33Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy Predição da massa específica de Eucalyptus grandis W. Hill ex Maiden por espectroscopia no infravermelho próximo |
title |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy |
spellingShingle |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy Rosso, Silviana Near infrared spectroscopy Eucalyptus - Bulk density Hardwood Eucalyptus - Densidade aparente |
title_short |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy |
title_full |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy |
title_fullStr |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy |
title_full_unstemmed |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy |
title_sort |
Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy |
author |
Rosso, Silviana |
author_facet |
Rosso, Silviana Muniz, Graciela Ines Bolzon de Matos, Jorge Luis Monteiro de Haselein, Clóvis Roberto Hein, Paulo Ricardo Gherardi Lopes, Merielen de Carvalho |
author_role |
author |
author2 |
Muniz, Graciela Ines Bolzon de Matos, Jorge Luis Monteiro de Haselein, Clóvis Roberto Hein, Paulo Ricardo Gherardi Lopes, Merielen de Carvalho |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Rosso, Silviana Muniz, Graciela Ines Bolzon de Matos, Jorge Luis Monteiro de Haselein, Clóvis Roberto Hein, Paulo Ricardo Gherardi Lopes, Merielen de Carvalho |
dc.subject.por.fl_str_mv |
Near infrared spectroscopy Eucalyptus - Bulk density Hardwood Eucalyptus - Densidade aparente |
topic |
Near infrared spectroscopy Eucalyptus - Bulk density Hardwood Eucalyptus - Densidade aparente |
description |
This study aimed to analyze use of near infrared spectroscopy (NIRS) to estimate wood density of Eucalyptus grandis. For that, 66 27-year-old trees were logged and central planks were removed from each log. Test pieces 2.5 x 2.5 x 5.0 cm in size were removed from the base of each plank, in the pith-bark direction, and subjected to determination of bulk and basic density at 12% moisture (dry basis), followed by spectral readings in the radial, tangential and transverse directions using a Bruker Tensor 37 infrared spectrophotometer. The calibration to estimate wood density was developed based on the matrix of spectra obtained from the radial face, containing 216 samples. The partial least squares regression to estimate bulk wood density of Eucalyptus grandis provided a coefficient of determination of validation of 0.74 and a ratio performance deviation of 2.29. Statistics relating to the predictive models had adequate magnitudes for estimating wood density from unknown samples, indicating that the above technique has potential for use in replacement of conventional testing. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04-06 2017-08-01T20:15:13Z 2017-08-01T20:15:13Z 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 |
http://www.cerne.ufla.br/site/index.php/CERNE/article/view/947 ROSSO, S. et al. Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy. Cerne, Lavras, v. 19, n. 4, p. 647-652, out./dez. 2013. http://repositorio.ufla.br/jspui/handle/1/14544 |
url |
http://www.cerne.ufla.br/site/index.php/CERNE/article/view/947 http://repositorio.ufla.br/jspui/handle/1/14544 |
identifier_str_mv |
ROSSO, S. et al. Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy. Cerne, Lavras, v. 19, n. 4, p. 647-652, out./dez. 2013. |
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/947/721 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 CERNE http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 CERNE http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
CERNE |
publisher.none.fl_str_mv |
CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol 19 No 4 (2013); 647-652 CERNE; Vol 19 No 4 (2013); 647-652 2317-6342 0104-7760 reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
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) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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