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이순천(Lee Soon-Cheon),김건일(Kim Keon-Il),이성노(Lee Seong-No) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.2
The purpose of this study was to analyze to compare their characters though trainees of Taekwondo and Taegukkwon. This study carried out group interview to 142 students for Taekwondo group at the Department of Taekwondo, K -university, Daegu Metropolitan City, and 124 students for Taegeukkwon group at the Department of Martial Arts, Shenyang Physical Education College, China, and then, collected the effective questionnaires from 210 students(84.8%) excluding insincere respondents. The results are as follows : First, in comparison by event, Taekwondo showed higher significance than Taegeukkwon at intelligence, self-intensity, passion, and guilty conscience, while Taegeukkwon showed higher significance than Taekwondo at susceptibility, distrust, progressiveness, and self-satisfaction. Second, in comparison by sex, boy students showed higher significance than girl students at geniality, self-intensity, morality, susceptibility, and practicality, while girl students showed higher significance than boy students at intelligence and self-satisfaction. Third, in comparison by career and event(boy students) Taekwondo showed higher adventure, susceptibility and mastery than Taegeukkwon in case under 5years, while Taegeukkwon showed higher tendency in case of 6years or more. Fourth, the mastery and the guilty conscience was significantly high to Taekwondo and Taegeukkwon(girl students) at the more career. Howerever Taekwondo showed higher guilty conscience than Taegeukkwon. In case under 5years, Taegeukkwon showed higher morality, while Taekwondo showed higher morality in case of 6years or more. However, in case under 5years, Taekwondo showed higher speculation, while Taegeukkwon showed higher speculation in case of 6years or more. In conclusion, Taekwondo appeared to be more brisk and positive in comparison with Taegeukkwon, while Taegeukkwon could be considered to be more stable and self-centered.
만성 C형간염 환자에서 간세포암종과 병발한 B세포 비호지킨림프종
이순일 ( Soon Il Lee ),허내윤 ( Nae Yun Heo ),박승하 ( Seung Ha Park ),주영돈 ( Young Don Joo ),김일환 ( Il Hwan Kim ),박정익 ( Jeong Ik Park ),김지연 ( Ji Yeon Kim ),김승호 ( Seung Ho Kim ),심혜경 ( Hye Kyung Shim ) 대한소화기학회 2014 대한소화기학회지 Vol.64 No.3
Hepatitis C virus (HCV) is one of the main viral causes of hepatocellular carcinoma (HCC) and is associated with lymphoproliferative disorder such as non-Hodgkin``s lymphoma (NHL). However, there are only few case reports on concomitantly induced NHL and HCC by HCV. Herein, we report a case of synchronous NHL and HCC in a patient with chronic hepatitis C which was unexpectedly diagnosed during liver transplantation surgery. This case suggests that although intrahepatic lymph node enlargements are often considered as reactive or metastatic lymphadenopathy in chronic hepatitis C patients with HCC, NHL should also be considered as a differential diagnosis. (Korean J Gastroenterol 2014;64:168-172)
Jellison Modine 분산식을 이용안 유기발광물질 Alq<sub>3</sub>의 광학상수 결정
박명희,이순일,고근하,Park, Myung-Hee,Lee, Soon-Il,Koh, Ken-Ha 한국안광학회 2005 한국안광학회지 Vol.10 No.4
유기발광물질 $Alq_3$(alumina quinoline)의 단일박막을 열 증착(thermal evaporation)방법에 의하여 실리콘(c-Si)기판과 슬라이드유리(slide glass) 기판위에 제작하였다. 박막 제작 후 가변입사각운광타원계(VASE : Variable Angle Spectroscopic Ellipsometer)를 사용하여 1.50~5.0 eV 광 에너지 영역에서 타원 각(ellipsometry angle) ${\Delta}$, ${\Psi}$를 측정하였다. 이 측정결과들을 Jellison Modine 분산관계식을 사용하여 최적맞춤하고, 매개변수들을 구하여 박막의 광학상수인 굴절계수와 소광계수를 결정하였다. 결정한 광학상수의 정확성올 확인하기 위하여 투과율을 전산 시늉하고, 흡수계수(absorption coefficient)와 분광광도계로 측정한 흡광도(absorbance)의 스펙트럼 비교로 분석의 정확성을 확인하였다. We deposited thin films of organic light-emitting-material $Alq_3$(alumina quinoline) on silicon and slide-glass substrates using thermal evaporation method, and measured spectra of ellipsometry angles ${\Delta}$ and ${\Psi}$ in the photon-energy range of 1.5~5.0 eV using a variable angle spectroscopic ellipsometer. The optical constants, refractive index and extinction coefficient, of $Alq_3$ were determined via the dispersion parameters extracted from the curve-fitting process based on Jellison-Modine dispersion function. The reliability of determined optical constants were verified through the comparison of measured and simulated transmittance curves and the good agreement between simulated absorption-coefficient curves and absorbance spectra measured using a spectrophotometer.
굽힘 하중하에서 유연 및 무연 솔더 조인트의 신뢰성 평가
김일호,이순복,Kim Il-Ho,Lee Soon-Bok 한국마이크로전자및패키징학회 2006 마이크로전자 및 패키징학회지 Vol.13 No.1
최근에 모바일 기기의 사용이 늘어남에 따라 굽힘 응력에 대한 패키지 접합부의 신뢰성에 대한 관심이 다시 높아지고 있다. 기존의 굽힘실험은 생산공정 및 운반 등에 파손을 방지하기 위해서 수행되었으나 최근에는 모바일 기기의 이동 및 사용에 따라 발생되는 응력에 대한 저항성 평가나 드롭시험의 대용으로 수행되고 있다. 본 연구에서는 정확한 4점 굽힘 실험 방법을 도입하여 유연 솔더 조인트와 무연 솔더 조인트의 굽힘 피로 시험에 대한 저항성을 평가하고, 단면 관찰과 유한요소법을 이용한 해석을 수행하였다. 높은 하중이 작용하게 되면, 유연 솔더 조인트가 보다 긴 피로수명을 갖으며, 낮은 하중이 작용할 때는 무연 솔더 조인트가 긴 수명을 가지게 된다. 크랙은 시편의 외각에서 발생되어 안쪽으로 진행하게 되며, 소성변형이 손상의 대부분을 자치하게 된다. Mobile products, such as cellular phones, PDA and notebook, are subjected to many different mechanical loads, which include bending, twisting, impact shock and vibration. In this study, a cyclic bending test of the BGA package was performed to evaluate the fatigue life. Special bending tester, which was suitable for electronic package, was developed using an electromagnetic actuator. A nonlinear finite element model was used to simulate the mechanical bending deformation of solder joint in BGA packages. The fatigue life of lead-free (95.5Sn4.0Ag0.5Cu) solder joints was compared with that of lead-contained (63Sn37Pb). When the applied load to the specimen is small, the lead-free solder has longer fatigue life than lead-contained solder. The fatigue crack is initialized at the exterior solder joints and is propagated into the inner solder joints.