http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤영훈,이태경,김태은,김형인,성기범 순천향대학교 순천향의학연구소 2010 Journal of Soonchunhyang Medical Science Vol.16 No.1
Pure motor monoplegia is characterized by motor involvement limited to one limb without sensory deficit. The symptom is relatively rare in cerebrovascular disease and clinicians are liable to make a wrong diagnosis as peripheral nerve lesion. Recently we experienced one pateint with small cortical infarction who presented with pure motor monoplegia : wrist drop and distal weakness of upper extremity. In this case, the lesion was not detected definitely by brain computed tomography (B-CT), but was seen by brain magnetic resonance imaging (B-MRI). We recommend MRI should take into consideration in the evaluation of patients with sudden onset monoparesis.
H1N1 Influenza: Hospital Countermeasures and the Need for Planning
윤영훈,최성혁,조한진,김정윤,한철,이강현,신상도 대한응급의학회 2011 大韓應急醫學會誌 Vol.22 No.1
Purpose: With a surge of H1N1 patients on November 2009, about 3 million confirmed or suspected cases and 140 deaths have been reported in Korea. The chaotic crisis brought on by patient overcrowding in emergency departments (EDs) nationwide was unique since the establishment of the countries’ emergency medicine system. This article analyzes the present status of H1N1 influenza A virus-induced ED overcrowding and the coping strategies of the affected hospitals, with the aim of guiding the formation of strategies to better handle future illness outbreaks. Methods: Telephone inquiries were made and e-mail questionnaires were distributed to general hospitals nationwide. The telephone inquiries were made twice, before and after the surge of flu-suspected-patients’ visits to EDs. The surveyed hospitals were arbitrarily selected, considering the degree of regional representation. Results: Coping with the surge of flu-suspected patients imposed a heavy burden of patient overcrowding on EDs. There was only palliative countermeasure and no exhaustive plans for influenza epidemic preparedness. Conclusion: Flu patient overcrowding imposed a heavy burden on the EDs of the surveyed hospitals, especially in the evening and overnight hours. Planning concerning community preparedness, public health communications, and work-force support is needed. New guidelines and strategies should be established to prevent ED overcrowding in future pandemics.
화학적 기상 반응법에 의한 탄화규소 피복 흑연의 제조(II)
윤영훈,최성철 한국세라믹학회 1999 한국세라믹학회지 Vol.36 No.1
흑연 기판에 탄화규소 전환층을 형성하는데 있어서 기판의 밀도와 기공 크기 분포의 영향이 조사되었다. 전환층형성을 위한 화학 반응은 기판의 표면 또는 표면 하부에서 SiO 기체의 침투를 통해 이루어졌다. 전환 공정 동안 기판 표면에서의 충분한 양의 SiO 기체 침투 및 연속적인 화학반응에 요구되는 기공크기 분포는 1.0~10.0$\mu\textrm{m}$ 범위인 것으로 추정되엇다. 유한요소법에 의한 탄화규소 층의 응력 해석에서는 열적 불일치에 기인하는 잔류응력 분포를 나타냈다. 그러나. X-선 회절에 의해 탄화규소 층에서는 압축응력이 측정되었으며, 탄화규소 층에서의 잔류응력 분포에 대해 SiC 층과 흑연 기판간의 interlayer의 constraining 효과, 전환층의 치밀화 거동 및 입자성장에 의해 주로 영향받는 것으로 추정되었다. The effects of density and pore size distribution of substrate in preparing SiC conversiton layer on graphite substrate were investigated. The chemical reaction for formation of SiC conversion layer was occurred at substrate surface or below surface through SiC gas infiltration. It was supposed that the pore size distribution required for the sufficient SiO gas infiltration and the continuous chemical reaction during conversion process was in the range of 1.0∼10.0$\mu\textrm{m}$. In the stress analysis of SiC layer with finite element method (FEM), the residual stress distribution due to thermal mismatch was shown. However, the compressive stress was measured in SiC layer by X-ray diffraction, it was presumed that the residual stress distribution of SiC layer was mainly influenced by the constraining effect of interlayer between SiC layer and graphite substrate, and the densification behaviro and the grain growth in SiC conversion layer.