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dc.contributor.authorPfretzschner, Jaime-
dc.contributor.authorFernández, Alejandro-
dc.contributor.authorCobo, Pedro-
dc.contributor.authorCuesta, María-
dc.contributor.authorSchmitt, A.-
dc.identifier.citationProceedings of ForumAcusticum 2005 Budapest. RBA-CP: Characteristics and properties of building structures ; 347-0en_US
dc.description6 pages.-- Communication presented at ForumAcusticum 2005 Budapest: "Acoustics: Science and Technology for Knowledge Based Society and Healthy Environment" (Aug 29-Sep 2, 2005).en_US
dc.description.abstractIn Internoise 2004 we reported the new concept of Microperforated Insertion Units, MIU, introducing their innovative acoustic and mechanical performances as an alternative to the traditional Microperforated Panel Absorbers, MPP. Theoretical and experimental results were compared in an impedance tube with diameters of 3 and 10 mm. In this work, we consider the angular dependence of the absorption coefficient of a large MIU panel (2.4 x 2.4 m2) in free field. Both theoretical and experimental results are presented, showing the acoustic absorptive capabilities of the device.en_US
dc.description.sponsorshipWe are grateful to the Spanish Ministry of Education and Science for funding this research under Grants No. DPI2001-1613-C02-01 and DPI2004-05504-C02-01.en_US
dc.format.extent890994 bytes-
dc.publisherScientific Society for Optics, Acoustics, Motion Picture and Theater Technology (Hungary)en_US
dc.subjectActive Noise Control Systems (ANC) (ANC) systemsen_US
dc.subjectWall liningen_US
dc.subjectLow frequenciesen_US
dc.subjectMicroperforated Panels (MPP)en_US
dc.subjectMicroperforated Insertion Units (MIU)en_US
dc.subjectAcoustic performanceen_US
dc.subjectExperimental resultsen_US
dc.titleMicroperforated Insertion Units in free field: A case studyen_US
dc.typecomunicación de congresoen_US
dc.description.peerreviewedPeer revieweden_US
Appears in Collections:(IA) Comunicaciones congresos
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