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Ugotavljanje patoloških sprememb v svežem lesu s Shigometrom : diplomsko delo - visokošolski strokovni študij = Assessment of patological changes in green wood with a Shigometer : graduation thesis - higher professional studiesŽeleznik, Tomaž, 1984-S Shigometrom, napravo za merjenje električne upornosti, smo preiskovali pojav patoloških sprememb v lesu različnih drevesnih vrst. V tkivih smo izmerili tudi vlažnost lesa in vsebnost kalijevih ... ionov z rendgensko fluorescenčnim spektroskopom. Vključili smo mehansko poškodovana drevesa iz območja Ljubljane in drevesa iz območja Škofjeloškega hribovja. Prehod med vlažnim delom in sušino, ter pojav biološke okužbe, je bilo pri smreki mogoče s Shigometrom dokaj enostavno zaznati. Za biološko okužen les so bile značilne dokaj nizke vrednosti električne upornosti, vsebnosti kalija na teh lokacijah pa so bile višje kot v neprizadetem tkivu. Za vlažno beljavo so bile značilne nižje, za sušino pa višje vrednosti električne upornosti. Vsebnost kalija je bila premosorazmerna z električno upornostjo. Tudi pri difuzno poroznih listavcih je bilo s Shigometrom mogoče zabeležiti beljavo, diskoloriran les, razkrojen les, mokrine, sušine in položaj reakcijske cone. Pri venčasto poroznih lesnih vrstah je bilo mogoče zaznati mejo med beljavo in jedrovino. V intaktnih tkivih robinije, hrasta in domačega kostanja je bila električna upornost nižja kot v jedrovini, vsebnost kalija pa večja v beljavi. Na okuženih mestih so bile vrednosti električne upornosti nižje.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [T. Železnik], 2009Language - slovenianCOBISS.SI-ID - 1716873
Author
Železnik, Tomaž, 1984-
Other authors
Oven, Primož |
Humar, Miha
Topics
les |
diskoloracija |
jedrovina |
razkroj |
električna upornost |
Shigometer |
wood |
discolouration |
heartwood |
decay |
electrical resistance |
Shigometer |
Shigometer
Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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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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Železnik, Tomaž, 1984- | |
Oven, Primož | 11223 |
Humar, Miha | 19106 |
Source: Personal bibliographies
and: SICRIS
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