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김승관,Kim, Seung-Gwan 한국도서관협회 2005 圖協會報 Vol.46 No.4
<도서관문화> 4월호 특집란에서는 지난 몇 년간 도서관의 디지털화 과정에서 전자책 도서관 구축이 꾸준히 확산되고 있는 현 상황과 관련하여, '전자책'의 생산자, '전자책도서관'의 운영자와 이용자 등 각각의 입장을 통하여 '전자책' '전자책도서관'의 현황과 향후 과제를 알아보는 지면을 마련하였다. 현장 사서들에게 유용한 자료가 될 수 있기를 바라며, 편집실의 자문에 도움을 준 '북토피아'(www.booktopia.com)에 감사드린다.
김승관,박효원,최성철,조성인,박수한,Kim, Seunggwan,Park, Hyowon,Choi, Seongcheol,Jo, Seongin,Park, Suhan 한국교통대학교 융복합기술연구소 2019 융ㆍ복합기술연구소 논문집 Vol.9 No.1
The purpose of this study is to suggest a new method to determine a combustion phase (start of combustion and end of combustion) using a combustion pressure data. Unlike previous research method that used heat release amount, the difference between the combustion pressure measured in the combustion chamber and the motoring pressure was used to determine the combustion phase. This research was conducted using a single-cylinder diesel engine with a compression ratio of 17.7. The test was conducted under various injection timing. The newly proposed method showed high accuracy in combustion mode with early injection, as well as the conventional combustion mode. It is expected that this method will be used to study new combustion strategies such as HCCI (homogeneous charge compression ignition) and RCCI (reactivity controlled compression ignition) that are applying early injection strategies as well as existing combustion modes.
Herpes Simplex Mastitis in an Adolescent Woman: Clinical and Ultrasound Features
김승관,서보경,오화은 대한영상의학회 2020 대한영상의학회지 Vol.81 No.3
Herpetic mastitis is extremely rare, and its imaging findings remain unclear. We report a case of herpes simplex mastitis in an adolescent woman and describe the clinical and ultrasound features. The patient showed unilateral nipple and areolar skin thickening and axillary lymphadenopathy on B-mode ultrasonography. Doppler ultrasonography revealed multiple linear and branching blood flows in the areolar area. The lesion was verified as herpes simplex mastitis via a skin biopsy. This report shows that the radiologic features of herpes simplex mastitis may be similar to those of Paget’s disease because of localized nipple and areolar skin thickening and increased vascularity.