Počet záznamov: 1
Structure of phloem and wood/bark shear strength of the sessile oak during dormant and growing period
SYS 0089315 LBL 00000naa^^22^^^^^^^^450 005 20190401133614.5 017 70
$a 10.17423/afx.2017.59.1.02 $2 DOI 100 $a 20170406d m y0sloc0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Structure of phloem and wood/bark shear strength of the sessile oak during dormant and growing period $f Peter Vilkovský, Igor Čunderlík 215 $c obr. 320 $a Lit. 330 $a Sessile oak (Quercus petraea (Matt.) Liebl.) with a 9.3% representation in the Slovak forests is an important wood material for the wood industry and pulp and paper industry. Oak bark with the structure and properties is completely different from the wood. Therefore the processing of logs is often necessary to separate the bark from the wood. The work evaluated shear strength on the interface wood / bark, in the course of year in the longitudinal and tangential direction, on the two moisture levels. The lowest shear strength values were found in the growing season fresh in tangential load. In the dormant period it was recorded almost twice a big the average value of the shear strength compared to the growing season. The values of shear strength in the longitudinal direction were approximately half higher than in the tangential direction. The values of shear strength in the dry state (w = 12%) grew on average compared to the fresh state in the longitudinal direction approximately about 280 %, and in the tangential direction about 360 %. Shear infringement was observed at the beginning of the growing season observed in the zone of early phloem. Based on analysis of shear area, it can be assumed that especially multiseriate phloem rays, significantly affect the adhesion at the interface wood / bark. 463 -1
$1 001 sldk_un_cat*0089217 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 59, č. 1 (2017), s. 17-26 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2017 610 1-
$9 sldk_un_auth*h010250 $a kôra $X bark 610 1-
$9 sldk_un_auth*h005792 $a dub zimný $X sessile oak $Y Quercus petraea L. 610 1-
$9 sldk_un_auth*h015367 $a šmyková pevnosť $X shear strength 610 1-
$9 sldk_un_auth*h020594 $a kambium $X cambium 610 1-
$9 sldk_un_auth*h031246 $a floém $X phloem 610 1-
$9 sldk_un_auth*h014326 $a lyko $X phloem 675 $a 630*892.4 $v 1. stred. $z slo 675 $a 630*176.1 $v 1. stred. $z slo 675 $a 581.824.2 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*0029000 $a Vilkovský $b Peter $f 1989- $p TUZDFNOD $4 070 $T Katedra náuky o dreve 701 -1
$3 sldk_un_auth*p0016389 $a Čunderlík $b Igor $f 1949- $p TUZDFNOD $4 070 $T Katedra náuky o dreve 801 -0
$a SK $b ZV001 $c 20170406 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/02-01-17_3_0_0_1_1_0_0_0_0_0_0_0_0.pdf
Počet záznamov: 1