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Estimating mechanical properties and specific gravity for five-year-old Eucalyptus tereticornis having broad moisture content range by NIR spectroscopy
-
Vimal Kothiyal
und
Aasheesh Raturi
Veröffentlicht/Copyright:
14. März 2011
Abstract
Near infrared spectroscopy coupled with multivariate data analysis has been used to predict the specific gravity, modulus of rupture, modulus of elasticity, and fiber stress at elastic limit in bending tests on radial and tangential strip wood samples obtained from five-year-old Eucalyptus tereticornis. Moisture content of samples was 6–21% for bending test and 7–16% for specific gravity. Partial least squares regression calibrations were developed for each wood property. Calibrations had good relationships between values measured in laboratory and NIR predicted values obtained from small clear samples. The coefficient of determination (R2) for calibration ranged from 0.76 to 0.83 and for prediction (Rp2) it was between 0.58 and 0.77. Both radial and tangential faces are equally suited for calibration (for radial face R2 was 0.77–0.83 and for tangential it was 0.76–0.83). Standard errors of predictions were slightly higher compared to standard error of calibration.
Keywords: Eucalyptus tereticornis; fiber stress at elastic limit (FS at EL); modulus of elasticity (MOE); modulus of rupture (MOR); near infrared spectroscopy (NIRS); specific gravity (SPGV)
Received: 2010-7-19
Accepted: 2011-1-24
Published Online: 2011-03-14
Published Online: 2011-03-14
Published in Print: 2011-08-01
©2011 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Original Papers
- Lignocellulosic biorefinery: process integration of hydrolysis and fermentation (SSF process)
- Study of stilbene and resin acid content of Scots pine heartwood by electrical impedance spectroscopy (EIS)
- Radical scavenging characteristics of condensed tannins from barks of various tree species compared with quebracho wood tannin
- Two-step hydrolysis of nipa (Nypa fruticans) frond as treated by semi-flow hot-compressed water
- Effect of acetic acid addition on chemical conversion of woods as treated by semi-flow hot-compressed water
- Oxidative cleavage of non-phenolic β-O-4 lignin model dimers by an extracellular aromatic peroxygenase
- Surface chemistry of vessel elements by FE-SEM, μ-XPS and ToF-SIMS
- Application of FT-NIR-DR and FT-IR-ATR spectroscopy to estimate the chemical composition of bamboo (Neosinocalamus affinis Keng)
- Chemical modification of lignin assisted by microwave irradiation
- Acidic oxidation of kraft lignin into aromatic monomers catalyzed by transition metal salts
- Effect of Physisporinus vitreus on wood properties of Norway spruce. Part 1: Aspects of delignification and surface hardness
- Effect of Physisporinus vitreus on wood properties of Norway spruce. Part 2: Aspects of microtensile strength and chemical changes
- Mode I critical stress intensity factor of wood and medium-density fiberboard measured by compact tension test
- Effect of oxalic acid pretreatment of wood chips on manufacturing medium-density fiberboard
- Experimental investigation of stress wave propagation in standing trees
- Relationships between mechanical properties of oak timber (Quercus robur L.)
- Estimating mechanical properties and specific gravity for five-year-old Eucalyptus tereticornis having broad moisture content range by NIR spectroscopy
- Effect of morphological variability of incrusted pit membranes on efficiency of transverse compression to improve liquid uptake
- Short Notes
- Performance of biopolymer films with reinforcing cellulose-containing fillers from pine pulp and bark and birch sawdust
- Efficacy of two organic biocides with co-added antioxidants
Artikel in diesem Heft
- Original Papers
- Lignocellulosic biorefinery: process integration of hydrolysis and fermentation (SSF process)
- Study of stilbene and resin acid content of Scots pine heartwood by electrical impedance spectroscopy (EIS)
- Radical scavenging characteristics of condensed tannins from barks of various tree species compared with quebracho wood tannin
- Two-step hydrolysis of nipa (Nypa fruticans) frond as treated by semi-flow hot-compressed water
- Effect of acetic acid addition on chemical conversion of woods as treated by semi-flow hot-compressed water
- Oxidative cleavage of non-phenolic β-O-4 lignin model dimers by an extracellular aromatic peroxygenase
- Surface chemistry of vessel elements by FE-SEM, μ-XPS and ToF-SIMS
- Application of FT-NIR-DR and FT-IR-ATR spectroscopy to estimate the chemical composition of bamboo (Neosinocalamus affinis Keng)
- Chemical modification of lignin assisted by microwave irradiation
- Acidic oxidation of kraft lignin into aromatic monomers catalyzed by transition metal salts
- Effect of Physisporinus vitreus on wood properties of Norway spruce. Part 1: Aspects of delignification and surface hardness
- Effect of Physisporinus vitreus on wood properties of Norway spruce. Part 2: Aspects of microtensile strength and chemical changes
- Mode I critical stress intensity factor of wood and medium-density fiberboard measured by compact tension test
- Effect of oxalic acid pretreatment of wood chips on manufacturing medium-density fiberboard
- Experimental investigation of stress wave propagation in standing trees
- Relationships between mechanical properties of oak timber (Quercus robur L.)
- Estimating mechanical properties and specific gravity for five-year-old Eucalyptus tereticornis having broad moisture content range by NIR spectroscopy
- Effect of morphological variability of incrusted pit membranes on efficiency of transverse compression to improve liquid uptake
- Short Notes
- Performance of biopolymer films with reinforcing cellulose-containing fillers from pine pulp and bark and birch sawdust
- Efficacy of two organic biocides with co-added antioxidants
