Hwang Yoha LEE JONG MIN Kim Seung Jong 우창호 2024-01-13T12:31:51Z 2024-01-13T12:31:51Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/106807 English stack noise perforated type muffler major noise component absorpition treatment wideband noise 굴뚝 소음 다공형 머플러 주 소음 성분 흡음처리 광대역 소음 Application of muffler techniques to reduce noise of cement factory raw mill stack Conference 1 9th International Congress on Sound and Vibration, pp.P291-1 9th International Congress on Sound and Vibration P291-1 US