Počet záznamov: 1
The effect of tension wood on the selected physical properties and chemical composition of beech wood (Fagus sylvatica L.)
SYS 0095220 LBL 00000naa^^22^^^^^^^^450 005 20180424135018.5 017 70
$a 10.17423/afx.2018.60.1.04 $2 DOI 100 $a 20170407d m y0sloc0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a <The> effect of tension wood on the selected physical properties and chemical composition of beech wood (Fagus sylvatica L.) $f Tatiana Vilkovská, Ivan Klement, Eva Výbohová 215 $c Fotogr., graf., tab. 320 $a Lit. 330 $a The paper is focused on the comparison of selected properties of the tension and normal wood. Beech is wood with high frequency of defects such as red false heartwood, reaction wood ( t ension wood), dote and so forth . The quality of beech wood is determined according to the structure and properties . T he tension wood is considered an important wood defect because it causes negative alterations in solid wood quality and limits an industrial utilization of the wood. Tension wood content in our research w as evaluated by the initial longitudinal warping and the woolly appearance of surface. The wood turning blanks of normal and tension wood were selected with a thickness of approximately 50 mm, wi dth of 55 mm, and length of 460 mm. Q uantity of 32 woodturning blanks were determined for moisture content and 16 samples for density from two groups t ension [TW] and n ormal wood [NW]. Fourier transform - infrared (FTIR) spectroscopy measurements were carried out using a Nicolet iS10 FTIR spectrometer equipped with Smar t iTR attenuated total reflectance (ATR) sampling accessory with diamond crystal (Thermo Fisher Scientific). A resolution of 4 cm - 1 and 32 scans per sample w as used. Higher variations in average moisture conten t were in the samples of tension . No significant statistical differences were found between density of tension and normal wood samples measured in fresh state. The cellulose in tension wood has higher degree of crystallinity than in normal wood. 463 -1
$1 001 sldk_un_cat*0094837 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e scientific journal of the Faculty of Wood Sciences and Technology, Technical University in Zvolen $e vedecký časopis Drevárskej fakulty Technickej univerzity vo Zvolene $v Vol. 60, no. 1 (2018), p. 31-40 541 1-
$a Vplyv ťahového dreva na vybrané fyzikálne vlastnosti a chemické zloženie bukového dreva 610 1-
$9 sldk_un_auth*0000334 $a ťahové drevo $X tension wood 610 1-
$9 sldk_un_auth*h018760 $a normálne drevo $X normal wood 610 1-
$9 sldk_un_auth*h015234 $a FTIR $X FTIR 610 1-
$9 sldk_un_auth*h005757 $a vlhkosť dreva $X moisture content of wood 610 1-
$9 sldk_un_auth*h010990 $a chemické zloženie dreva $X chemical wood composition 675 $a 630*812.21 $v 1. stred. $z slo 675 $a 630*813 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*0042867 $a Vilkovská $b Tatiana $f 1990- $4 070 $p TUZDFDT $T Katedra drevárskych technológií 701 -1
$3 sldk_un_auth*p0015960 $a Klement $b Ivan $f 1966- $p TUZDFDT $4 070 $T Katedra drevárskych technológií 701 -1
$3 sldk_un_auth*p0046221 $a Výbohová $b Eva $f 1974- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 801 -0
$a SK $b ZV001 $c 20170407 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/04-01-18.pdf
Počet záznamov: 1