http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤선진,박성주,권오준,Yun, Seon-Jin,Park, Seong-Ju,Kwon, Oh-Joon 한국전자통신연구원 1988 전자통신 Vol.10 No.3
XPS는 표면과 계면의 구성원소 및 화학적 결합상태를 밝혀내는 기술로서 반도체 소자제조의 주된 단위인 박막의 연구에 중요하게 이용되고 있다. 본 고에서는 XPS의 분석원리, 장비의 구성 등에 대해 설명하고 XPS의 특성을 잘 활용한 반도체 표면연구에의 응용사례를 소개한다. .
Localization and Treatment of Unruptured Paraclinoid Aneurysms: A Proton Density MRI-based Study
윤선진,신나영,이재환,허승곤,박근영 대한뇌혈관외과학회 2015 Journal of Cerebrovascular and Endovascular Neuros Vol.17 No.3
Objective: The purpose of this study was to evaluate the usefulness of proton density magnetic resonance (PD MR) imaging for localization of paraclinoid internal carotid artery aneurysms. Materials and Methods: From April 2014 to April 2015, 76 unruptured paraclinoid aneurysms in 66 patients were evaluated using PD MR and angiography (CT/MR angiography or digital subtraction angiography). The locations (extradural, transdural, intradural) in relation to the distal dural ring (DDR) and projection (superior, inferior/posterior, medial, lateral) of the aneurysms were assessed and compared. Results: The most common location of paraclinoid aneurysms was extradural (n = 48, 63.2%), followed by intradural (n = 18, 23.7%), and transdural (n = 10, 13.2%). In the medial projection group (n = 49, 64.5%), 31 were extradural (63.3%), 5 were transdural (10.2%), and 13 were intradural (26.5%). In the inferior/posterior projection group (n = 19, 25.0%), there were 14 extradural (73.7%), 4 transdural (21.0%), and 1 intradural (5.3%). In the superior (n = 4, 5.3%)/lateral (n = 4, 5.3%) projection groups, there were 0/3 extradural (0/75.0%), 1/0 transdural (25.0/0%), and 3/1 intradural (75.0/25.0%). Conclusion: PD MR showed sufficient contrast difference to distinguish paraclinoid aneurysms from surrounding dural structures.
윤선진,정준호,주진양,김용배,홍창기 대한뇌혈관외과학회 2015 Journal of Cerebrovascular and Endovascular Neuros Vol.17 No.3
Objective:Routine use of prophylactic antiepileptic drugs (AED) has been debated. We retrospectively evaluated the effects of prophylactic AED on clinical outcomes in patients with a good clinical grade suffering from aneurysmal subarachnoid hemorrhage (aSAH). Materials and Methods:Between September 2012 and December 2014, 84 patients who met the following criteria were included: (1) presence of a ruptured aneurysm; (2) Hunt-Hess grade 1, 2, or 3; and (3) without seizure presentation. Patients were divided into two groups; the AED group (n = 44) and the no AED group (n = 40). Clinical data and outcomes were compared between the two groups. Results:Prophylactic AEDs were used more frequently in patients who underwent microsurgery (84.1%) compared to those who underwent endovascular surgery (15.9%, p < 0.001). Regardless of prophylactic AED use, seizure episodes were not observed during the six-month follow-up period. No statistical difference in clinical outcomes at discharge (p = 0.607) and after six months of follow-up (p = 0.178) were between the two groups. After six months, however, favorable outcomes in the no AED group tended to increase and poor outcomes tended to decrease. Conclusion:No difference in the clinical outcomes and systemic complications at discharge and after six months of follow-up was observed between the two groups. However, favorable outcomes in the no AED group showed a slight increase after six months. These findings suggest that discontinuation of the current practice of using prophylactic AED might be recommended in patients with a good clinical grade.
윤선진,우종옥,김범기 한국교원대학교 과학교육연구소 1996 청람과학교육연구논총 Vol.6 No.1
The purpose of this study is to examine closely the flow process of science education phenomena for the political direction and improvement of science education. Therefore the science education system is analyzed in a view of the legislative system. The results are as follows: 1. The science education system is divided into the plan system, do system and see system by the criteria of plan do see that is the general process of human activity and the area is established as the field of science education administration, school science education, and science education evaluation. 2. The system model that the system characteristics and interrelationship between the systems are conceivable is suggested as the conceptions of boundary, components, variables, parameters, linkage and mishap, gatekeeper etc.
$C_2F_6$/$CHF_3$ 반응성이온 건식식각 공정시 실리콘 표면에 생성된 잔류막과 표면구조의 연구
윤선진,장상환,권오준,Yun, Seon-Jin,Jang, Sang-Hwan,Gwon, O-Jun 한국전자통신연구원 1989 전자통신 Vol.11 No.1
$C_2F_6$/$CHF_6$ 플라즈마를 이용한 실리콘 산화막의 반응성이온 식각공정시 실리콘 표면에 형성되는 고분자 잔류막과 근표면 손상영역을 X-선 광전자분광법(x-ray photoelectron spectroscopy)과 러더포드 후방산란법(Rutherford backscattering)을 이용하여 연구하였다. 표면 잔류막은 CF, $CF_2$, $CF_3$, $C-CF_x$, 그리고 C-C/C-H 등의 결합을 가진 불화탄소 고분자로 구성되어 있으며, 또한 C 1s와 Si 2p X-선 광선자 스펙트럼으로부터 C-Si 결합이 존재함을 확인하였다. 반응성이온 식각을 거친 실리콘 표면 구조의 연구결과, 불소와 탄소로 구성된 고분자막($<20 \AA$)이 극표면에 존재하며, 식각 후 공기중에 노출됨에 따라 고분자 잔류층으로 산소가 통과하여 기판을 산화시킴으로써 실리콘 산화막( $~10\AA$)이 그 아래에 형성되었음을 알았다. 그리고 실리콘산화막 아래에 탄소-산소 결합영역이 관찰되었다. 플라즈마 가스의 조성에서 $CHF_3$의 량이 증가함에 따라 고분자 잔류막의 두께가 증가하였으며, 본 연구의 실험조건에서 2분간 overetching한 시편의 경우에도 실리콘 표면 영역의 손상정도가 매우 적음을 발견하였다.