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영남지방 정자에서의 경관 연출에 관한 연구(낙동강 수계에 인접한 정자를 중심으로)
지우진(Ji. woo-jin),임충신(Lim. choong-shin) 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
The purpose of this study was to analyze the view presentation of junga's spacer in Yungnam area.<br/> Detail is below. The frist is we can know the feature of view area that the each area were faced water system of nak-dong river and the second is we can understand feature in boundary of landscape according to the feature of view area.
CPX 및 Pass-by 계측을 이용한 단독 주행 차량의 음향파워 평가 방법에 관한 연구
최태묵(Choi, T.M.),문성호(Moon, S.H.),서영국(Seo, Y.G.),김진형(Kim, J.H.),김병희(Kim, B.H.),배효준(Bae, H.J.),지우진(Ji, W.J.),조대승(Cho, D.S.) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.11
This paper presents a novel method to determine sound power level(PWL) emitted by a travelling vehicle for road traffic noise simulation. The PWL is evaluated by the equivalent sound pressure level (SPL) measured by close proximity method and the sound power correction factor derived from the maximum SPL measured by pass-by method and the propagation attenuation of vehicle noise during the pass-by measurement. Using the method, we derive the empirical formula for PWL estimation in 1/1-octave and overall frequency bands for 8 vehicles (automobile, SUV, small truck, large bus, trailer, 3 dump trucks) tested at two road surfaces (dense graded asphalt, 30mm transverse tinning concrete) of Korean highway test road. The suggested approach, if securing sufficient data to represent the acoustic characteristics of all vehicle types, has il strong merit to be able to evaluate sound power levels for any combination of vehicle categories and traffic volumes.