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dc.contributor.authorVilniškis, Tomas
dc.contributor.authorJanuševičius, Tomas
dc.date.accessioned2023-09-18T17:00:28Z
dc.date.available2023-09-18T17:00:28Z
dc.date.issued2017
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/118844
dc.description.abstractIn this article was analyzed acoustic efficiency of two different construction noise barriers. Field measurements of noise tests were carried out before and behind a wooden barrier, which height was 2.9 meters and a wooden wall with equipped roof, which height was 3.2 m. As is known the length of the wall, height, surface roughness, shape and material of the wall – key aspects of determining the effectiveness of noise barrier. Different materials, depending on their characteristics of the hard or soft, porous or dense, interact differently with the sound of waves. Article contains research results of noise measurements at positive and negative air temperature. There analyzing wooden noise barrier acoustic efficiency at different temperatures and the effects of temperature to the diffraction of sound waves through the peak of the barrier. Test results show, that noise barrier without structural changes reduced noise level to 14–22 dB, noise barrier with structural changes reduced noise level to 20–23,1 dB, when air temperature was positive. When air temperature was negative, noise barrier without structural changes reduced noise level to 15,5–21,4 dB, noise level with structural changes to 19–26,6 dB.eng
dc.formatPDF
dc.format.extentp. 1-5
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.relation.isreferencedbyConference Proceedings Citation Index - Science (Web of Science)
dc.relation.isreferencedbyScopus
dc.source.urihttps://doi.org/10.3846/enviro.2017.061
dc.source.urihttp://enviro.vgtu.lt/index.php/enviro/2017/paper/viewFile/582/262
dc.titleResearch of different noise barriers efficiency at different temperature
dc.typeStraipsnis konferencijos darbų leidinyje Web of Science DB / Paper in conference publication in Web of Science DB
dcterms.accessRightsThis is an open-access article distributed under the terms of the Creative Commons Attribution (CC BY-NC 4.0) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dcterms.references13
dc.type.pubtypeP1a - Straipsnis konferencijos darbų leidinyje Web of Science DB / Article in conference proceedings Web of Science DB
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.facultyAplinkos inžinerijos fakultetas / Faculty of Environmental Engineering
dc.subject.researchfieldT 004 - Aplinkos inžinerija / Environmental engineering
dc.subject.vgtuprioritizedfieldsAE - Aplinkos ir energijos technologijos / Environmental and energy technologies
dc.subject.ltspecializationsL102 - Energetika ir tvari aplinka / Energy and a sustainable environment
dc.subject.enEfficiency
dc.subject.enNoise barrier
dc.subject.enTemperature
dc.subject.enNoise level
dcterms.sourcetitle10th International conference "Environmental Engineering", 27-28 April 2017, Vilnius Gediminas Technical University, Lithuania
dc.publisher.nameVGTU Press
dc.publisher.cityVilnius
dc.identifier.doi2-s2.0-85061786900
dc.identifier.doi000495878500244
dc.identifier.doi10.3846/enviro.2017.061
dc.identifier.elaba24400783


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