Determination of sound transfer coefficient and noise insulation capability of boron added cellulosic mixture

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dc.contributor.authorÇö?ürcü M.T.
dc.contributor.authorŞahinkaya S.
dc.contributor.authorDonduren M.S.
dc.contributor.authorDo?an S.
dc.contributor.authorÖzdemir C.
dc.date.accessioned2020-03-26T17:19:08Z
dc.date.available2020-03-26T17:19:08Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description7th International Scientific Conference on Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2007 -- 11 June 2007 through 15 June 2007 -- Albena -- 101475en_US
dc.description.abstractNoise is an important factor affecting human health psychologically due to lack of performance, hearing failures, decreases in heart beats, physiologically due to higher brain liquid pressure and sociologically due to lack of communication. Especially in closed working areas, it has significant negative effects on the performance. Noise control in closed working areas is generally done with boron added cellulosic mixture sprayed on the structure or surfaces with required thicknesses. In this study, noise was generated with central frequencies of 31.5, 63, 125, 250, 1000, 2000, 4000, 8000 and 16000 Hz by using signal generator, which can be heard by human ear at medium or top levels. The generated noises occurred at various frequencies with various noise levels that were later calculated as 100 dB. However, ? values (sound transfer coefficient) for the measured absolute values and the NRCs (Noise Reduction Coefficient) for 250, 500, 1000, 2000, 4000, 8000 Hz frequencies, the most sensitive ones for human ear, were calculated. The material used in the study was so efficient for high frequencies. The NRC and ? value were respectively obtained as 0.34 and 0.38 for 3 cm thickness, 0.31 and 0.72 for 5 cm thickness.en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21813
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartof7th International Scientific Conference on Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2007en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectIsolationen_US
dc.subjectNoise reductionen_US
dc.subjectSounden_US
dc.subjectSound transmission coefficienten_US
dc.titleDetermination of sound transfer coefficient and noise insulation capability of boron added cellulosic mixtureen_US
dc.typeConference Objecten_US

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