Pregled bibliografske jedinice broj: 599645
Spectral sensitivity of fir wood surfaces under Xenon light exposure
Spectral sensitivity of fir wood surfaces under Xenon light exposure // Wood is good - with knowledge and technology to a competitive forestry and wood technology sector / Grbac, Ivica (ur.).
Zagreb: Šumarski fakultet Sveučilišta u Zagrebu, 2012. str. 219-227 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 599645 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Spectral sensitivity of fir wood surfaces under Xenon light exposure
Autori
Živković, Vjekoslav ; Arnold, Martin ; Richter, Klaus ; Turkulin, Hrvoje
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Wood is good - with knowledge and technology to a competitive forestry and wood technology sector
/ Grbac, Ivica - Zagreb : Šumarski fakultet Sveučilišta u Zagrebu, 2012, 219-227
ISBN
978-953-292-026-0
Skup
Wood is good - with knowledge and technology to a competitive forestry and wood technology sector
Mjesto i datum
Zagreb, Hrvatska, 12.10.2012
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Wood photodegradation; activation spectra; colour; microtensile changes
Sažetak
The wavelength sensitivity of unprotected fir wood surfaces was assessed using a series of glass cut-off filters under which three 80 μm thick radial wood strips formed a composite surface layer of wood exposed to xenon light. Colour and microtensile changes in the different layers followed different patterns and intensities. During exposure, the colour and microtensile changes shifted ever deeper into the surface and further into the visible region of the spectrum. A relatively narrow waveband of most active wavelengths was causing the greatest proportion of the recorded photodegradation (360 – 435 nm), whereas visible light of wavelengths up to 515 nm also contributed significantly to surface damaging. This is an important finding, assuming that the current knowledge implicitly assumes that the actinic effect of light progressively increases with a reduction in wavelength. As a consequence, an efficient protection of wood from photodegradation would demand also screening longer wavelengths of UVA light and some violet and blue light wavebands of the visible part of the spectrum.
Izvorni jezik
Engleski
Znanstvena područja
Drvna tehnologija
POVEZANOST RADA
Projekti:
068-0682109-2096 - Oplemenjivanje i modifikacija površine drva (Jirouš-Rajković, Vlatka, MZOS ) ( CroRIS)
Ustanove:
Fakultet šumarstva i drvne tehnologije