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Zgradba in lastnosti lesa balze izbranega slovenskega trgovca : diplomsko delo - visokošolski strokovni študij = Structure and properties of balsawood of a Slovenian trader : graduation thesis - higher professional studiesRudnik, AlešNa vzorcih lesa s trgovskim imenom balza izbranega slovenskega trgovca smo proučili zgradbo in določili izbrane lastnosti, da bi ugotovili ali res kupujemo les balze (Ochroma lagopus Sw.). Opravili ... smo makroskopsko in mikroskopsko identifikacijo ter določili osnovno gostoto lesa, delež celičnih sten in volumske skrčke. Iz lesa smo izdelali trajne preparate, ki smo jih preučili pod svetlobnim mikroskopom in identificirali s pomočjo identifikacijskih ključev. Osnovno gostoto, definirano kot maso absolutno suhega lesa na maksimalni volumen, smo določili s pomočjo tehtanja ter volumetriranja. Delež celičnih sten smo izmerili na preparatih prečnih prerezov s pomočjo mikroskopa in programa NIS Elements BR 3.0. Za določitev totalnih volumenskih skrčkov smo določili maksimalni volumen in volumen v absolutno suhem stanju. Identifikacija lesa je potrdila, da so vsi preizkušanci pripadali lesu balze (Ochroma lagopus Sw.). Osnovna gostota je variirala od 62 kg/m3 do 328 kg/m3. Delež lumnov je znašal od 28 % do 52 %. Volumenski skrčki so bili od 7,4 % do 28,8 %, medtem ko je 60 % preizkušancev pri sušenju do absolutno suhega stanja kolabiralo.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Rudnik], 2013Language - slovenianCOBISS.SI-ID - 2120585
Author
Rudnik, Aleš
Other authors
Merela, Maks |
Čufar, Katarina |
Gorišek, Željko
Topics
les |
balza |
Ochroma lagopus |
zgradba lesa |
identifikacija |
gostota |
krčenje |
wood |
balsa |
Ochroma lagopus |
identification |
structure |
density |
shrinkage
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Library | Call number – location, accession no. ... | Copy status |
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BF, Dept. of Wood Technology, Lj. | Knjižnica BF za lesarstvo vsn 366 IN: 020130044 |
available - reading room |
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Rudnik, Aleš | ![]() |
Merela, Maks | 24676 |
Čufar, Katarina | 02937 |
Gorišek, Željko | 05732 |
Source: Personal bibliographies
and: SICRIS
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