Počet záznamov: 1
Selected aspects of the reaction beech wood
SYS 0103712 LBL 00000naa^^22^^^^^^^^450 005 20191023144134.9 017 70
$a 10.17423/afx.2019.61.2.01 $2 DOI 100 $a 20191023a m y0sloy0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Selected aspects of the reaction beech wood $f Jarmila Geffertová ... [et al.] 215 $c Obr., tab. 320 $a Lit. 330 $a The specifics of reaction beech wood in terms of basic chemical properties, colouration and dimensional propertiesof the wood fibresare presented in the paper. The samples of reaction and opposite beech wood were evaluated using standard chemical analyses by means of measuring the colour coordinates L*, a*and b*and determining the dimensional properties of the wood fibres using Fiber Tester.Awell-known fact that reaction wood has a higher proportion of cellulose and a lower proportion of lignin than opposite woodis confirmed by the chemical analyses.The content of extractives in both samples was very similar (from 2.97 to 3.53%).The lightness (L*) of reaction wood is higher than the lightness of opposite wood, both in wet and dried wood. After the drying process, the lightness of wood increased slightly.The biggest colour differences were noticed between the wet reaction and opposite wood (DE*=18.6). Except one sample, all observed values of the total colour difference were DE*>3. Knowledge about well-recognized colour changes in wet reaction wood could also be applied in the early identification of reaction wood in the industrial practice. Based on the fibre length distribution,the fact that reaction wood contains fewer parenchyma cells alongside with the higher representation of fibre cells and the lower representation of vessels can be concluded. 463 -1
$1 001 sldk_un_cat*0103569 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Vol. 61, no. 2 (2019), s. 5-15 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2019 541 1-
$a Vybrané aspekty reakcie bukového dreva 610 1-
$9 sldk_un_auth*h001468 $a bukové drevo $X beech wood 610 1-
$9 sldk_un_auth*h002823 $a reakčné drevo $X reaction wood 610 1-
$9 sldk_un_auth*h013951 $a zafarbenie dreva $X colouring of wood 610 1-
$9 sldk_un_auth*h014746 $a rozmery vlákien $X fiber dimensions 675 $a 674.031.632.2 $v 2. stred. $z slo 675 $a 630*81 $v 1. stred. $z slo 675 $a 630*811.22 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*p0039105 $a Geffertová $b Jarmila $f 1956- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 701 -1
$3 sldk_un_auth*p0016647 $a Geffert $b Anton $f 1955- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 701 -1
$3 sldk_un_auth*0042867 $a Vilkovská $b Tatiana $f 1990- $p TUZDFDT $4 070 $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*p0051750 $a Vacek $b Ondrej $f 1979- $p TUZDFMDG $4 070 $T Katedra matematiky a deskriptívnej geometrie 801 -0
$a SK $b ZV001 $c 20191023 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/01-02-19_1.pdf
Počet záznamov: 1