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이정규(Cheong-Kyu Lee),김정태(Jeung-Tae Kim) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_1
One of the widely accepted methods for evaluating the interior sound quality of automobiles is Articulation Index(AI). The AI actually measures the articulation level of the sound in the vehicle cabin as passengers talk to one another. In this study, the effect of different absorption materials inside the cabin on AI is investigated. It turns out that the back seat location is found to be strrongly dependent on the type of absorption materials treated at the ceiling. The proposed method could be used to improve the sound quality of automobiles at the design stage.<br/>
이건복(Kun Bock Lee),이대성(Dae Sung Lee),김영환(Young Whan Kim),허원(Won Houh),이정규(Jeung Kyu Kim),이교영(Kyo Young Lee) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.6
The patient was a 35 year old woman complaining of non tender erythematous nodule on the left nipple for 2 years. Histopathologic findings showed focal acanthosis and extension of epithelium into some of the superficial ductal structures. In the dermis, the tubules were lined by a peripheral layer of cuboidal cells and a inner layer of columnar cells. The papillary projections of the luminal cells into the lumen also were shown. In the upper dermis, we could find the keratin cysta. She was treated with a simple excision of the nipple and subareolar tissue.