{"id":1250,"date":"2015-03-13T21:31:48","date_gmt":"2015-03-13T20:31:48","guid":{"rendered":"http:\/\/ist.blogs.inra.fr\/afs\/?p=1250"},"modified":"2015-03-13T21:50:11","modified_gmt":"2015-03-13T20:50:11","slug":"a-novel-method-to-correct-for-wood-moe-ultrasonics-and-nirs-measurements-on-increment-cores-in-liquidambar-styraciflua-l","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2015\/03\/13\/a-novel-method-to-correct-for-wood-moe-ultrasonics-and-nirs-measurements-on-increment-cores-in-liquidambar-styraciflua-l\/","title":{"rendered":"A novel method to correct for wood MOE ultrasonics and NIRS measurements on increment cores in Liquidambar styraciflua L"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><p class=\"a-plus-plus\" style=\"text-align: justify\"><strong class=\"a-plus-plus\">Ultrasounds overestimate the MOE value. This paper analyses the causes of this difference and opens the perspective for a novel method allowing the calculation of the correct MOE from ultrasounds or <a class=\"reference-link webtrekk-track\" href=\"http:\/\/link.springer.com\/search?dc.title=NIRS&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">NIRS<\/a> measurements on cores.<\/strong><\/p>\n<p class=\"a-plus-plus\" style=\"text-align: justify\">Standardized methods for determining wood modulus of elasticity (MOE) are destructive and require many replicates. Other methods such as <a class=\"reference-link webtrekk-track\" href=\"http:\/\/link.springer.com\/search?dc.title=NIRS&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">NIRS<\/a> and ultrasound have been developed to characterize wood properties and overcome these constraints. The aim of this study was to compare the two MOE measurement methods (<a class=\"reference-link webtrekk-track\" href=\"http:\/\/link.springer.com\/search?dc.title=NIRS&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">NIRS<\/a> and ultrasound) applied to cores of wood taken from standing trees (<em class=\"a-plus-plus\">Liquidambar styraciflua<\/em>). MOE, measured by an acoustic method in standard samples (360\u2009\u00d7\u200920\u2009\u00d7\u200920\u00a0mm), was used as a reference. Then MOE was predicted by an <a class=\"reference-link webtrekk-track\" href=\"http:\/\/link.springer.com\/search?dc.title=NIRS&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">NIRS<\/a> model and determined using ultrasound in standard samples (360\u2009\u00d7\u200920\u2009\u00d7\u200920\u00a0mm), small samples (10\u2009\u00d7\u200920\u2009\u00d7\u200920\u00a0mm), and cores (15\u00a0mm in diameter). MOE values determined by acoustic method on standard samples and by ultrasonic method on small samples were correlated (<em class=\"a-plus-plus\">R<\/em> <sup class=\"a-plus-plus\">2<\/sup>\u2009=\u20090.72) and were not statistically different. The <a class=\"reference-link webtrekk-track\" href=\"http:\/\/link.springer.com\/search?dc.title=NIRS&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">NIRS<\/a> PLS regression yielded a model with <em class=\"a-plus-plus\">R<\/em> <sup class=\"a-plus-plus\">2<\/sup> <sub class=\"a-plus-plus\">cv<\/sub>\u2009=\u20090.80. The link between <a class=\"reference-link webtrekk-track\" href=\"http:\/\/link.springer.com\/search?dc.title=NIRS&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">NIRS<\/a> and ultrasound on cores was statistically significant (<em class=\"a-plus-plus\">R<\/em> <sup class=\"a-plus-plus\">2<\/sup>\u2009=\u20090.68). The ultrasonic technique determines an apparent modulus enables comparative data analysis. This apparent modulus can be used for quantitative analysis if a corrective model is used. A correction formula to ultrasonic MOE was proposed in the case of a prismatic geometry.<\/p>\n<div class=\"altmetric-embed\"><a href=\"http:\/\/www.altmetric.com\/details.php?domain=ist.blogs.inra.fr&amp;citation_id=3711617\" target=\"_self\"><div class='altmetric-embed' data-badge-type='donut' data-doi='10.1007\/s13595-015-0469-6'  style='float: right; ' ><\/div>\u00a0<\/a><\/div>\n<hr \/>\n<p><strong><em>Publication<\/em><\/strong><\/p>\n<p style=\"text-align: justify\"><strong>Rakotovololonalimanana H, Chaix G, Brancheriau L, Ramamonjisoa L, Ramananantoandro T, Thevenon M<\/strong> 2015. A novel method to correct for wood MOE ultrasonics and NIRS measurements on increment cores in Liquidambar styraciflua L. Ann. For. Sci.: 1-9. 10.1007\/s13595-015-0469-6.<\/p>\n<p style=\"text-align: justify\"><a href=\"http:\/\/link.springer.com\/article\/10.1007\/s13595-015-0469-6\" target=\"_blank\">Download full manuscript<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultrasounds overestimate the MOE value. This paper analyses the causes of this difference and opens the perspective for a novel method allowing the calculation of the correct MOE from ultrasounds or NIRS measurements on cores. Standardized methods for determining wood modulus of elasticity (MOE) are destructive and require many replicates. Other methods such as NIRS [&hellip;]<\/p>\n","protected":false},"author":35,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,15],"tags":[],"class_list":["post-1250","post","type-post","status-publish","format-standard","hentry","category-editors-choice","category-research-paper","cat-7-id","cat-15-id"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/1250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/users\/35"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/comments?post=1250"}],"version-history":[{"count":0,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/1250\/revisions"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=1250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=1250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=1250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}