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서형교,이병일,박승하,김우경,정전은 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.1
Industrial hand injury causes not only loss of hand function but also many socio-economic problem, because they are low socio-economic class, age of productivity and unemployed status due to functional disability of hand. Mainly, inexpert workers suffer from industrial hand injury (62%) probably due to absence of safe guard, safe-education and occupational training. Therefore, industrial hand injury may be diminished by preventive measure such as adequate safeguard, safe-education and occupational training. Statistical analysis was carried out retrospectively on 495 patients with industrial hand injury at Dept. of plastic and Reconstructive Surgery, Korea University College of Medicine, KURO hospital, from September 1986 to December 1988, and following items are studied. 1. Constitutions of industrial compartments and labors in Kuro and Youngdeungpo region. 2. Educational status of the patients. 3. Area distribution. 4. Monthly distribution. 5. Day of week distribution. 6. Onset time distribution. 7. Duration of occupation in the patients. 8. Causative factor. 9. Underlying factor. 10. Physical treatment and its duration. 11. postoperative grasping power. 12. Aesthetic result. We want this paper attribute to reduction of industrial hand injury.
肺 組織에서 胡桃 抽出液이 酸化性 細胞 損傷의 防禦棋戰에 미치는 影響
李佑憲,徐雲敎,鄭智天 동국대학교 한의학연구소 1997 東國韓醫學硏究所論文集 Vol.6 No.1
胡桃는 補陽藥으로써 下焦를 溫補하고 元氣를 攝納하며 潤肺腎하는 效能이 있어 오래된 虛寒咳嗽, 喘息의 治療에 사용되어 왔는데 肺 組織內에서 酸索遊離基들에 依한 細胞 損傷의 防止 여부를 알아보기 爲하여 酸化劑인 t-butylhydroperoxide(t-BHP)와 H₂O₂로써 細胞 損傷을 유발한 후 胡桃 抽出液의 抗酸化 效果 및 抗酸化 酵素의 活性에 미치는 影響과 酸素遊離基에 對한 직접 消去效果를 調査하였다. 이 결과 胡桃는 肺 組織에서 脂質의 過酸化를 抑制함으로 oxidant에 依한 肺浮腫 誘發을 防止할 수 있음을 보여주었고 細胞內 glutathione의 濃度 및 抗酸化 酵素 中 catalase 와 superoxide dismutase 活性에는 變化를 유발하지 못하였으나 glutathione peroxidase의 活性을 有意하게 增加시켰으며, superoxide radical과 hydroxyl의 生成을 減少시켰다. 따라서, 肺 組織에서 酸化性 細胞 損傷에 對한 胡桃의 保護 效果는 부분적으로 細胞內 抗酸化 酵素의 活性 增加와 酸素遊離基들을 직접 消去시키는 作用에 起因하는 것으로 사료된다. This study was undertaken to determine whether Juglandis Semen extraction(JS) has a protective effect against the lung cell injury caused by oxidants, t-butylhydroperoxide(t-BHP) and H₂O₂in rabbit lung slices. JS significantly prevented an increase in water content indured by t-BHP. Similarly, JS slgnificantly prevented the lipid peroxidation induced by t-BHP. Cellular concentration of glutathione, and the activities of catalbase and superoxide dismutase were significantly not altered by 5% JS. However, JS at 5% concentration significantly increased the glutathione peroxidase activity in oxidant-treated and control tissues. JS decreased directly the production of superxide or hydroxyl radical. These results indicate that JS prevents the cell injury and lipid peroxidation induced by oxidants in the lung. Such an antioxidant effort is attributed to enhancement of major endogenous antioxidant defence systems such as glutathione peroxidase and direct inhibition of oxygen free radical production.
도시홍,이우교,오문영,정용조,강갑중,김도성,김완,강희동 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
CsI(Ag) single crystals doped with 0.001, 0.003 and 0.005 mole % silver as activator were grown using the Czochralski method. The gamma ray energy spectrum is measured by the CsI(Ag) single crystals coupled to photomultiflier tube. It was confirmed that the crystal structure of grown CsI(Ag) was bcc, and that its lattice constant was 4.568Å. The energy resolution of CsI(Ag) for Cs-137 gamma ray was maximum when CsI(Ag) was doped 0.003 mole % silver, and its value was 9.84% the pulse height from the scintillation detector system using the CsI(Ag) single crystals was linear to gamma ray energy.
CaS : Ce와 Ca_1-χSr_χS : Ce 형광체의 Photoluminescence 특성
황해선,이우교,김영욱 동의대학교 기초과학연구소 1995 基礎科學硏究論文集 Vol.5 No.1
CaS:Ce and Ca_1-χSr_χS:Ce phosphors have been prepared using the sulfurizing flux method and the result of measuring photoluminescence is presented two peaks with extensively strong intensity, when flux (Na₂CO₃) is mixed 30 mol% and activator doped 0.1 mol% in the host (CaS). The two peaks of CaS:Ce phosphor are appeared at 513㎚ and 576㎚ wavelengthes when liminescenct transition in Ce^3+ is given as 5d(²D)→4f(²f_5/2) and 5d(²D)→4f(²f_7/2) and that of Ca_1-χSr_χS:Ce phosphor are shifted toward short wavelength as much as 30㎚ when χ is changed from 0 to 1, but the shape of wavelength is not varied.
조선시대 입제(笠制)의 형성과정과 제작방법 연구 : '갓'을 중심으로
유미현,추원교 한국공예학회 2001 조형디자인연구 Vol.4 No.1
This study is about the hat of the gentry and ordinary people in Chosun era, not the high classical cap of the King and dignitaries. The wearing of Gat in Korea was started from the 6th year of the reign of King Gongmin in Korea Dynasty, and the Chosun hat has two types of G n & Rip. For the kinds of G n, there are Bangg n, Bokg n, Yug n, Mangg n, etc. and Mangg n was a symbolic expression of a grown-up. Putting on a cap was started when the King Gongmin made civil and military officials to wear a crown (1357, the 6th year of his reign). Chosun succeeded the crown custon as is was, yet the shape of Gat became confused. In the 20th year of King Sungjong's reign (1485), the Rip shape was changed by an order since it was looked like Seungrip under the influence of contemporary trend to H krip. And the change of Gat shape experienced the shifting procedure of Paeraengi to Chorip and finally to H krip, and the last one H krip became the symbolic crown of civil and military officials. However the use of Paeraengi and Chorip was avoided, cause they were used by both nobility and common people at first but the nobillity used only H krip later.
Lif(Mg, Cu, Na, Si) 열형광선량계를 사용한 60 Cr- 선의 수중흡수선량 측정
김현자,정운혁,이우교,도시홍 대한방사선 방어학회 1990 방사선방어학회지 Vol.15 No.2
새로 개발한 LiF(Mg, Cu, Na, Si)열형광선량계를 사용하여 60Co원격조사장치에 의한 수중흡수 선량을 측정하였다. 공기중 조사선량으로부터 TLD공동의 흡수선량 교정인자(DTLD/TL)를 결정하였고, 수중흡수선량은 TLD공동의 흡수선량을 측정하여 공동이론에 의해 해석하였다. 10×10cm 2 및 5×10cm 2의 빔 크기에서 팬텀내 여러지점에 대하여 LiF(Mg, Cu, Na, Si) TLD로 수중흡수선량을 결정하고 동일한 위치에서 NE 2561전리함을 사용하여 측정한 값과 비교한 결과, LiF(Mg, Cu, Na, Si)TLD의 측정오차(±3%)범위내에서 잘 일치 하였다. 빔의 크기가 5×5cm 2, 10×10cm 2 및 30×30cm 2인 경우에 깊이-선량 백분율과 팬텀-공기 선량비를 측정하였으며 이 값들은 British Journal of Radiology(1983)의 데이터와 잘 일치하였다. Newly developed LiF(Mg, Cu, Na. Si) thermoluminescence phosphors sealed in a plastic capsules(3.2mm dia., 0.9mm wall thickness) were used for in-phantom dosimetry of 60Co r-irradiation. The absorbed doses in water were determined by applying the general cavity theory to the absorbed dose in TLD cavity, which was computed from exposure. The absorbed doses at various sites in the water-phantom were measured by LiF(Mg, Cu, Na, Si) TLD and compared with doses obtained by the ionization method. Both results were consistent within the experimental fluctuation(±3%). Central axis percentage depth doses and phantom-air ratios measured by LiF(Mg, Cu. Na, Si) TLD showed good agreement with the published values [Br. J. Radiology. Suppl. 17(1983)].