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김성식,임시연,정풍만,Kim, Sung-Sik,Rhim, Si-Youn,Jung, Poong-Man 대한소아외과학회 2008 소아외과 Vol.14 No.1
From 1979 to 2006, fifty eight patients with esophageal atresia were treated by one pediatric surgeon at Hanyang University Hospital. We analyzed the clinical findings and outcome of these 58 patients. There were 30 males and 28 females. Their mean birth weight was $2,960{\pm}400g$ (1,170~4,020 g). The most common type of anomaly was Gross type C (49 patients; 84.5 %). There was no type B. Fifty-two patients underwent definitive surgery. Postoperative complications were as follows: anastomotic leakage in 17 patients (32.7 %), anastomotic site stricture in 15 (28.8 %), gastroesophageal reflux in 10 (19.2 %) and recurrent TEF in 1 (1.9 %). A total of 152 associated anomalies were detected from 48 patients (82.2 %). The cardiovascular system was the most commonly affected (30 patients with 46 anomalies). The VACTERL association was present in 14 patients (24.1 %). Operative mortality was 17.3 % including self-discharge patients after operation.
김성식,Kim, Seong-Sik 한국방위산업진흥회 1994 國防과 技術 Vol.- No.179
정확도증대는 소형 견고화목표물을 반복타격할 수 있게되어 소형 침투폭탄으로도 견고화 목표물을 파괴할 수 있게 된 새로운 전술개념의 도출도 가능하게 되었다. 이제 개발자 및 운용자는 정확도의 증대에만 역점을 두는 것이 아니라 위장목표물에 대한 타격능력 향상, 전천후 타격능력 향상 및 ATR 능력 향상에 역점을 두고 있다.
김성식,Kim, Seong-Sik 한국방위산업진흥회 1993 國防과 技術 Vol.- No.177
2차대전 중에 감행된 항공기에 의한 대지상공격의 특징은 수십, 수백 대의 폭격기들을 동시에 동원한 대공습으로 많은 인명이 살상되었습니다 그러나 걸프전에서 다국적군은 항공기가 파격될 위험을 감내하면서 정밀한 타격능력을 가진 유도탄이나 공대지미사일로 민간인 지역을 피해가며 목표물만 정확히 공격하였습니다 그 결과로 다수의 나라로부터 역침공에 대한 외교적 묵인 또는 지원을 얻어내는데 성공하여, 전장에서의 승리와 함께 외교전에서도 완벽한 승리를 할수 있었습니다
김성식,S. W. Yoon,J. Y. Kim 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.56 No.4
Plasma transport in the scrape-off layer and the divertor region of the Korea Superconducting Tokamak Advanced Research (KSTAR) tokamak is studied with a two-dimensional fluid simulation code B2.5. Heat fluxes on the divertor are evaluated at various operation powers in KSTAR discharges. The effects of carbon impurities on the heat transport are investigated by changing the sputtering yield of carbon. The removal of divertor heat by impurities through dispersive loss mechanisms, such as radiation, charge exchange, and ionization, is discussed and analyzed.
Photoaddition Reactions of p-Quinones to Conjugated Diyne
김성식,유동열,김애란,조인호,심상철,Kim Sung Sik,Yoo Dong Yeol,Kim Ae Rhan,Cho In Ho,Shim Sang Chul Korean Chemical Society 1989 Bulletin of the Korean Chemical Society Vol.10 No.1
Irradiation of solutions of p-quinones and conjugated diyne, 1,4-diphenylbutadiyne, with 350 nm UV light gave the photoproducts such as quinomethane in good yields (70-85%).
Lipo-PGE<sub>1</sub>의 투여경로가 흰쥐의 횡복직근피판의 생존률에 미치는 효과
김성식,변준희,유결,한기택,Kim, Sung-Sik,Byeon, Jun-Hee,Yoo, Gyeol,Han, Ki-Taik 대한성형외과학회 2005 Archives of Plastic Surgery Vol.32 No.1
The Transverse rectus abdominis musculocutaneous (TRAM) flap has been commonly used for autologous breast reconstruction. Despite these clinical usefulness, the TRAM flap is prone to partial flap or fat necrosis in especially pedicled flap. To improve flap survival, the surgical delay procedures and pharmacological treatments have been developed. In many studies for the pharmacological treatment, Lipo-$PGE_1$ has demonstrated a marked ability to improve flap survival and it's effect has been proved similar to surgical delay procedure. The purpose of this study is to determine the most effective route of Lipo-$PGE_1$ administration as a pharmacological treatment in TRAM flap of the rat. Fifty male Sprague-Dawley rats weighing 300-350 gm were divided into five groups, One week before flap elevation, Lipo-$PGE_1$($2{\mu}g/kg$) was injected three times in a week and than the left inferior epigastric vessel based TRAM flap ($5.0{\times}3.0cm$) elevated; group I: no procedure before flap elevation; group II: intraperitoneal injection; group III: intravenous injection; group IV: subcutaneous injection; group V: topical application. A flap was assessed at postoperative 7 days by comparison of flap survival rate, vessel counts(H-E stain), and vascular endothelial growth factor(VEGF) protein expressed by Western blot. The results demonstrated that the mean percentages of the flap survival area in group III were significantly higher than that of any other group(p<0.05). The vessel counts of all experimental groups were statistically higher than that of control group(p<0.05). Only in group III, the VEGF protein expression was increased significantly than control group and there are no difference in other experimental groups. In conclusion, the intravenous administration of the Lipo-$PGE_1$ is the most effective on flap survival, and the VEGF induced by Lipo-$PGE_1$ has some positive effects on new vessel formation and flap survival.
Photoaddition Reactions of Alkynes to Quinonoid Compounds
김성식,김애란,조인호,심상철,Kim Sung Sik,Kim Ae Rhan,Cho In Ho,Shim Sang Chul Korean Chemical Society 1989 Bulletin of the Korean Chemical Society Vol.10 No.1
UV irradiation of anthraquinone and diphenylacetylene in benzene gave 1:1 photoadduct (7) and cyclization product (8). The photoreaction of anthrone and diphenylacetylene in dichloromethane afforded the photooxidation products (7, 8, and 9) in air. The photoproduct (7) underwent the cyclization reaction during the purification by the column chromatography (silica gel). When irradiated with 350 nm UV light, the product (11) of benzil reacted with diphenylacetylene to give a photoadduct(12).
김성식,Kim, Seong-Sik 한국방위산업진흥회 1993 國防과 技術 Vol.- No.178
서유럽 국가는 국가마다의 지리적인 위치, 대외정책, 국방정책에 따라 그들의 항공전술체계를 달리하지만 공통적으로 장거리 공격능력이 있는 AGB에 관심을 두고 있으며, 이들의 개발을 활발히 추진하고 있습니다.