20.500.12556/RUL-608
Vpliv variabilne zgradbe macesnovine na njene dimenzijske in oblikovne spremembe
diplomski projekt
The influence of variable structure of larch wood on dimensional and shape stabillity
B. Sc. thesis
Dimenzijske spremembe in vpliv variabilne zgradbe lesa smo proučevali na jedrovini, mladostnem lesu in beljavi evropskega macesna (Larix decidua Mill.) ter na jedrovini sibirskega macesna (Larix sibirica (Münch) Ledeb.). Dimenzijsko stabilnost smo ugotavljali s spremljanjem krčenja (ß) in nabrekanja (alfa) ter z določanjem kazalnikov dimenzijske stabilnosti: diferencialnega nabreka (q), koeficienta nabrekanja (h) v radialni in tangencialni smeri ter sorpcijskega kvocienta (s). Prirastne značilnosti smo ocenili iz širin ranega in kasnega lesa, kjer smo določili tudi gostoto smolnih kanalov. Ugotovili smo, da med evropskim in sibirskim macesnom ni statistično značilnih razlik v dimenzijski stabilnosti lesa. Med seboj sta si najbolj podobna jedrovina in mladostni les evropskega macesna. Pri vseh meritvah je imel les sibirskega macesna najmanjšo variabilnost.
The swelling and shrinking of juvenile wood, sapwood and heartwood of European larch (Larix decidua Mill.) were compared to Siberian larch (Larix Sibirica (Münch) Ledeb.) heartwood. The dimensional stability was examined by observation of shrinking (ß) and swelling, and by determining the indicators of dimensional stability: differential swelling (q), swelling coefficient (h) in radial and tangential direction, and by sorption quotient (s). The growth characteristics were assessed from width of earlywood and latewood, where the resin duct density was also determined. There were no statistically distinctive differences between European and Siberian larch in wood dimensional stability. The heartwood and juvenile wood of European larch were very similar. In all measurements the wood of Siberian larch had the lowest variability.
gostota lesa
krčenje
nabrekanje
dimenzijska stabilnost
Larix decidua Mill.
evropski macesen
Larix sibirica (Münch) Lebed.
sibirski macesen
wood density
growth increment
shrinking
swelling
dimensional stability
European larch
Siberian larch
true
false
false
[P. Žagar]
Slovenski jezik
Angleški jezik
Delo diplomskega projekta/projektno delo
2014-07-11 12:26:20
2014-07-11 12:26:20
2022-07-11 10:35:27
0000-00-00 00:00:00
2011
0
Ljubljana
0
VIII, 26 f.
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
630*812
1957513
dv1_zagar_primoz.pdf
dv1_zagar_primoz.pdf
1
3CF7E95497A32CCAE6B996B9C2B9FF62
02273b19e9c4e242591571488d213da7239febfbf9349885228b194dde6271a2
6505a25e-a1b9-11eb-a523-00155dcfd717
20.500.12556/rul/17cbf4a8-7630-4451-92d0-0b714adc9218
https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=132425
Biotehniška fakulteta
0
0
0