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Metal-polymer Joining Method with Laser Structuring to Enhance Cross-tension Strength
S. Chey(최석영),J. Y. Choi(최준영),G. Y. Kim(김근영),J. Y. Kim(김지엽),J. Lee(이중혁),A. K. Han(한경원),D. H. Kim(김도회),J. Jeong(정준영),S. J. Hong(홍석주),N. R. Yoon(윤나래),J. H. Hwang(황준호),H. D. Kim(김현덕),Y. S. Gu(구윤식),J. W. C Korean Society for Precision Engineering 2023 한국정밀공학회 학술발표대회 논문집 Vol.2023 No.11
1999년도 한국 신생아외과 현황 -대한소아외과학회 회원대상 전국조사(제 2 차)-
김우기,김상윤,김신곤,김인구,김재천,김현학,박귀원,박우현,송영택,오수명,유수영,이두선,이명덕,이성철,이석구,서정민,정상영,정성은,정을삼,정풍만,Kim, W.K.,Kim, S.Y.,Kim, S.K.,Kim, I.K.,Kim, J.C.,Kim, H.H.,Park, K.W.,Park, W.H.,Song, Y.T.,Oh, S.M.,Yoo, Y.S.,Lee, D.S 대한소아외과학회 2001 소아외과 Vol.7 No.1
To understand the current status of neonatal surgery in Korea, a survey was made among the 36 members of the Korean Association of Pediatric Surgeons. The response rate was 75 % (26 surgeons in 20 hospitals). Five hundred fifty three neonatal surgical patients treated in 1999 were analyzed. Regional numbers of patients were closely related to the regional population in most areas. Ano-rectal malformations (17 %), pyloric stenosis (16 %), Hirschsprung's disease (13 %), atresia/stenosis of the gut (11 %), esophageal atresia (8 %) were the most common anomalies treated. The majority of operations were done within the first week of life. Seventy one per cent of cases were major life threatening or so-called neonatal index cases. Over-all mortality was 8 per cent. Higher mortality was observed in patients with diaphragmatic hernia (26 %), gastro-intestinal perforation (18 %), NEC (18 %), and esophageal atresia(14 %). Higher mortality was observed in patients with extremely low birth weight (33%) and low birth weight (18 %). Associated anomalies were observed in 20 %. Prenatal ultrasound was performed in 36 per cent with sensitivity of 20 %. Result of this study was compared to the previous report (1994) and that of Japan (1998).
실시간 ABS 시뮬레이션을 위한 차륜속도 시뮬레이터의 개발
김석민(S.M.Kim),배봉국(B.K.Bae),정재현(J.H.Chung),서명원(M.W.Suh),석창성(C.S.Seok),김영진(Y.J.Kim),이재천(J.C.Lee),김성봉(S.B.Kim),이선일(S.I.Lee),김장성(J.S.Kim) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_2
In order to perform a vehicle driving simulation test in laboratory for the electronic control unit(ECU) analysis of anti-lock brake system(ABS), it is necessary to simulate the wheel speed signal which is to be controlled for the various road and driving conditions. The speed signal from the real wheel speed sensor is not only for the speed calculation but also for the diagnosis of the ABS system. In this research, wheel speed simulator is developed which can generate the equivalent signal as that of a real wheel speed sensor. The applicability of the wheel speed simulator is validated by the simulation tests using commercial ECU of ABS. The wheel speed simulator is based on the personal computer so that it can be applied to other vehicle tests involving vehicle speed and/or wheel speed.<br/>
S.H. Ahn,홍병식,B.I. Kim,D.G. Koo,D.H. Moon,H.W. Lee,J.H. Kim,J.K. Lim,J.T. Rhee,K.B. Lee,이경세,K.S. Sim,M. Ito,M.S. Ryu,박성근,홍성종,이석재,S.K. Nam,S.Y. Bahk,T.I. Kang,W.J. Park,김용주,김용은 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.2
We present the beam test results of a real-sized prototype resistive plate chamber (RPC) for the high- region of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) under a high-radiation environment up to 2 kHz/cm2. Particularly, we emphasize the effects of a linseed oil treatment on the surfaces of bakelite plates for avalanche-mode operation. The improved quality of the bakelite surface due to the linseed oil coating results in a significant reduction in the intrinsic noise rate and the dark current without affecting the muon detection efficiency. At the same time, the noise cluster size is somewhat increased by the linseed oil treatment, especially, under no radiation background.