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Vpliv obremenitve lesa na spremembe njegovih akustičnih lastnosti : magistrska naloga = The influence of wood loading on its changes of acoustical properties : M. Sc. thesisJereb, Peter, 1987-Na šestih izbranih lesnih vrstah (smreka, jesen, bukev, oreh in češnja) smo med navlaževanjem in sušenjem preizkušancev proučevali spremembe modula elastičnosti, frekvenčni odziv in koeficient ... dušenja. Uporabili smo resonančno metodo z impulzivnim % elastičnim mehanskim vzbujanjem. Ugotovili smo, da je hitrost spremembe modula elastičnosti pri procesu sušenja dvakrat hitrejša kot pri navlaževanju. S povečevanjem vlažnosti se je koeficient dušenja zmanjševal, vendar so zveze statistično nezanesljive. Najmanjše dušenje zvoka smo zasledili pri jesenovini, smrekovini in češnjevini. Sprememba modula elastičnosti je bila v linearni odvisnosti od povprečne vlažnosti medtem, ko je bil odziv dušenja zvoka hitrejši, kar pripisujemo nastalemu vlažnostnemu gradientu.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [P. Jereb], 2014Language - slovenianCOBISS.SI-ID - 2277513
Author
Jereb, Peter, 1987-
Other authors
Gorišek, Željko |
Straže, Aleš
Topics
les |
modul elastičnosti |
akustične lastnosti lesa |
sušenje |
navlaževanje |
navlaževanje |
wood |
E - modul |
acoustic properties |
drying |
wetting |
wetting
Library/institution |
City | Acronym | For loan | Other holdings |
---|---|---|---|---|
BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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Shelf entry
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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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Jereb, Peter, 1987- | |
Gorišek, Željko | 05732 |
Straže, Aleš | 18149 |
Source: Personal bibliographies
and: SICRIS
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