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      • KCI등재

        수부의 고압 분사 손상

        김성기,노시균,이내호,양경무,Kim, Seong-Ki,Roh, Si-Gyun,Lee, Nae-Ho,Yang, Kyung-Moo 대한성형외과학회 2010 Archives of Plastic Surgery Vol.37 No.3

        Purpose: High-pressure injection injury is caused by accidental injection of the high-pressure injection devices in industry. The initial benign appearance of the wound fools patients into delays in an adequate treatment. And it can result in disastrous outcomes such as necrosis and amputation. To avoid the poor prognosis, the injuries require a prompt surgical intervention. The purpose of this article is to recognize the poor outcome of the highpressure injection injury and to introduce an adequate treatment in need. Methods: We have 4 cases of the high-pressure injection injuries in the hand from April, 2005 to March, 2009. Average age is 39 years (30 - 49 years old), 2 cases are the palm of dominant hand, 1 case is the thumb of dominant hand, and 1 case is the palm of non-dominant hand, respectively. We followed up these patients for 20 months on average. In 3 cases, the immediate, aggressive surgical intervention was carried out, but the other one was delayed in early adequate treatment. The wounds were covered by local advancement flap, anterolateral thigh free flap, conservative treatment with antibiotics and dressing. Results: No pathogens after culture were found nor any findings of fracture in imaging study. Conservative treatment, local advancement flap and anterolateral thigh free flap for the open wound resulted in a desirable aesthetic outcome. In a long-term follow up, functional capability of the patient was also satisfactory. Conclusion: Upon initial evaluation, most high-pressure injection injuries present as innocuous wounds with very few symptoms and result in delaying the proper management. And the majority of high-pressure injection injuries will produce significant morbidity to the hand, amputation. And the initial aggressive surgical debridement was needed to prevent the poor outcome. The key to success in treating high-pressure injection injuries of the hand is the prompt aggressive surgical intervention.

      • KCI등재

        MediaFrame: Parallel multimedia system architecture through HTTP redirection

        김성기,한상영,Kim, Seong-Ki,Han, Sang-Yong Korea Information Processing Society 2007 정보처리학회논문지 A Vol.14 No.1

        한 대의 비디오 서버가 확장성, 용량, 고장 감내(Fault-tolerance), 비용 효율성(Cost-efficiency)에서 한계들을 드러냄에 따라 해결책들이 나타났다. 그러나, 이러한 해결책들도 각각의 문제점들을 지닌다. 우리는 이러한 문제점들을 해결하고 다양한 비디오 서버들을 활용하기 위해, HTTP 레벨 리디렉션(Redirection)을 통하여 이질적인 퍼스널 컴퓨터(Personal Computer), 운영 체제(Operating System) 비디오 서버들로 내용에 따른 라우팅(Routing)을 지원하는 병렬 멀티미디어 시스템 구조를 디자인하였다. 또한 프로토타입을 개발하였으며 서로 다른 비디오서버 제품들을 프로토타입에 추가하였고 오버헤드를 측정하였다. As a single video server exposes its limitation in scalability, capability, fault-tolerance, and cost-efficiency, solutions of this limitation emerge. However, these solutions have their own problems that will be discussed in this paper. To solve these problems and exploit various video silvers, we designed a parallel multimedia system architecture that supported a content-aware routing to heterogeneous personal computer (PC), operating system (OS), video servers through a HTTP-level redirection. We also developed a prototype, added different video servers into the prototype, and measured its overheads.

      • 광배근 유리 피판술을 이용한 두피 및 두개골 결손의 재건

        김성기,노시균,이내호,양경무,Kim, Seong-Ki,Roh, Si-Gyun,Lee, Nae-Ho,Yang, Kyung-Moo 대한미세수술학회 2013 Archives of reconstructive microsurgery Vol.22 No.1

        Purpose: Reconstruction of scalp and calvarial defects should provide both aesthetic and functional aspects. The inelastic nature of the scalp and previous surgery or radiation preclude the use of primary closure or a local flap. With development of microsurgical technique, a free tissue transfer is a good option. We use the latissimus dorsi myocutaneous free flap for reconstruction. Materials and Methods: A review of all latissimus dorsi free flap reconstructions performed in nine patients from 2009 to 2012 was conducted. There were six males and three females, ranging in age from seven to 69 years, and nine different regions, including five temporal regions, two occipital regions, and two frontoparietal regions. The flaps ranged in size from $9.0{\times}10.0cm$ to $14.0{\times}15.0cm$. Recipient vessels available for microanastomosis were most often the superficial temporal vessels and two patients had anastomoses to the external carotid artery and internal jugular vein. Results: All flaps survived postoperatively. With a median follow-up period of 14 months, no major complications were noted. However, two patients developed minor wound dehiscence, and a hematoma was observed in one patient. Conclusion: We performed the latissimus dorsi myocutaneous free flap reconstruction, which is one of the most popular reconstructive methods. The latissimus dorsi myocutaneous free flap reconstruction has been proven successful in our patients with satisfactory results. During the long term follow-up period, even though depressions were observed on the defect area in some patients, they were treated successfully with cranioplasty. Therefore, we recommend the latissimus dorsi myocutaneous free flap for reconstruction of scalp and calvarial defects.

      • KCI등재

        분광분석을 통한 지르콘의 메타믹상태와 색상 변화 분석

        김성기,안용길,서진교,김종근,박종완,Kim, Seong-Ki,Ahn, Yong-Kil,Seo, Jin-Gyo,Kim, Jong-Gun,Park, Jong-Wan 한국결정성장학회 2010 한국결정성장학회지 Vol.20 No.1

        캄보디아와 탄자니아산 지르콘을 대상으로 메타믹상태와 색상변화에 대한 연구를 하였다. 이를 위해 U, Th 등의 방사성원소 검출을 위한 원소분석과 분광분석(UV-VIS 분광기, FTIR분광기)을 하였다. UV-VIS 분광분석 결과 청색과 무색에서는 고온형의 특징인 많은 흡수 피크들과 세기가 높게 나타났으며 우라늄이 검출된 녹색과 황색 시료에서는 흡수 피크들의 수가 현저히 적게 나타나 메타믹화가 진행되었음을 알 수 있었다. 열처리 후에는 반대의 결과가 나왔다. FTIR 분광 분석 결과 3100~3400 $cm^{-1}$ 영역에서 $[SiO_4]^{4-}$ 내부 진동의 3-포논 조합 모드 밴드들이 메타믹화된 녹색과 황색의 지르콘에서는 완만하며 없어진 밴드들도 있으나 열처리 후에는 다시 결정격자가 원상태로 회복되어 사라졌던 밴드들이 나타났다. 또한 지르콘에 우라늄이 함유되어 있는지를 알 수 있는 4800 $cm^{-1}$ 근처에서 $U^{4+}$의 피크가 녹색과 황색 시료에서 확인 되었다. 연구 결과 분광분석 과 열처리 실험으로 지르콘에 우라늄의 함유가 메타믹상태와 칼라의 변화에 미치는 영향을 확인할 수 있었다. Metamictization and color change in zircons from Cambodia and Tanzania were investigated. Elements analysis to detect radioactivity of elements such as U and Th, and spectroscopic analysis using UV-VIS and Fourier transform infrared spectroscopy were performed. According to the UV-VIS spectroscopic analysis, it was perceived that many and high intense absorption peaks appeared in blue and colorless zircons, while less and low intense absorption peaks appeared in uranium contained green and yellow zircons. It was found that those stones have made progress to the metamictization. After heat treatment, we could detect opposite results. As the results of FTIR spectroscopy analysis, in the metamict green and yellow zircon, it is showed that 3-phonon combination mode bands of $[SiO_4]^{4-}$ internal vibration in the region of 3100~3400 $cm^{-1}$ are broad and some of them disappear. However, the disappeared bands are observed again due to restored crystal lattice by the heat treatment. Also, $U^{4+}$ peaks that can detect the uranium content in zircon appears at near 4800 $cm^{-1}$ in the green and yellow samples. From this investigation, we could observe the metamictization effect and color change in uranium-bearing zircon by heat treatment using spectroscopic analysis.

      • KCI등재

        소양인(少陽人) 긴장형 두통(頭痛)에 감수말(甘遂末)을 사용한 치험(治驗) 3례

        김성기,함성훈,송은영,임은철,서상경,Kim, Seong-Ki,Ham, Seong-Hun,Song, Eun-Young,Lim, Eun-Chul,Seo, Sang-Kyoung 사상체질의학회 2011 사상체질의학회지 Vol.23 No.4

        1. Objective We report a series of 3 cases Euphorbiae Kansui. Radix(Gam-sui) which is based on Sasang constitutional Medicine for Tension-Type Headache in Soyangin. 2. Methods We treated a 3 Soyangin patients that had Tension-Type Headache. We prescribed Euphorbiae Kansui. Radix(Gam-sui) for their physical symptoms. The improvement of their Tension-Type Headache was evaluated 3. Results After the Euphorbiae Kansui. Radix(Gam-sui) was given, the patient's Headache and physical symptoms were improved. 4. Conclusions This cases studies showed an efficient result of using Euphorbiae Kansui. Radix(Gam-sui) in the Tension-Type Headache of Soyangin.

      • KCI등재

        원인미상의 발열(發熱)을 동반한 소양인(少陽人) 음허오열증(陰虛午熱證) 환자에 대한 십이미지황탕(十二味地黃湯) 치험(治驗) 1례

        김성기,이필재,송은영,임은철,정원희,Kim, Seong-Ki,Lee, Pil-Jae,Song, Eun-Young,Lim, Eun-Chul,Jung, Won-Hee 사상체질의학회 2010 사상체질의학회지 Vol.22 No.4

        1. Objectives The purpose of this case is to report the effects of Sibimijihwang-tang(十二味地黃湯) which is based on Sasang constitutional Medicine for Yin-Deficit Diurnal-Heat Symptomatology(陰虛午熱證) in Soyangin. 2. Methods We treated a Soyangin patients that had Fever Unknow Origin. We prescribed Sibimijihwang-tang(十二味地黃湯) for her physical symptoms. The improvement of her diseases was evaluated by her fever and other physical symptoms. 3. Results After the Sasang constitutional medication of Sibimijihwang-tang(十二味地黃湯) was given, the patient's fever and physical symptoms were improved. 4. Conclusions This case study show an efficient result of using Sibimijihwang-tang(十二味地黃湯) in the Yin-Deficit Diurnal-Heat Symptomatology(陰虛午熱證) of Soyangin.

      • KCI등재

        WTI 원유시장과 주식시장간의 동학적인 상관관계에 관한 실증연구

        김성기(Seong-Ki Kim),김중윤(Joong-Yun Kim),정상국(Sang-Kuck Chung) 한국산업경제학회 2012 산업경제연구 Vol.25 No.6

        이 연구는 WTI 기준 국제유가시장과 각국 주식시장간의 비대칭 시간 가변 파급효과를 분석하기 위해서 조건부 평균에 전통적인 공적분항과 부분공적분항을 고려하고 있고, 또한 조건부 분산에 레버리지 효과를 고려한 고정상관관계 GARCH와 동적상관관계 GARCH 모형을 이용하였다. 연구결과는 다음과 같다. 첫째, 장기기억을 나타내는 모수의 추정치는 모든 국가와 모형에서 통계적으로 유의적이었다. 둘째, 두 시장 간의 장기적인 균형관계가 성립하지 않는 경우 개별시장은 어떻게 반응하는가를 나타내는 오차항의 계수는 독일, 영국, 일본의 경우에는 부분공적분을 고려한 모형의 경우 WTI 유가시장에서, 나머지 홍콩, 중국, 한국의 경우 고려하고 있는 모든 모형의 경우 WTI 유가시장에서 모두 통계적으로 유의적인 결과를 보여주고 있다. 셋째, 두 시장 간의 변동성 파급효과를 나타내는 계수는 모두 통계적으로 유의하게 나타나 서로 영향을 주고받는 것으로 나타났다. 넷째, 레버리지 효과는 주식시장에서는 모두 유의적으로 정(+)의 값을 가지나, WTI 유가시장에서는 모두 통계적으로 유의적인 결과를 얻지 못하였다. 그러나 두 시장 모두에서 비대칭의 효과는 통계적으로 유의적인 것으로 나타나고 있다. This article investigates the interrelationships in daily returns using fractionally integrated error correction term and volatilities using constant conditional correlation and dynamic conditional correlation GARCH with asymmetries between oil and stock markets. Our findings are in orders. First, the long memory parameters, d, vary from 0.1176 to 0.4553 for all models considered and are all statistically significant. Fractionally integrated processes exhibit long memory and generate very slow decay in the impulse-response weights in individual markets. Second, the coefficients for the error correction term are all statistically significant for the oil market of Hongkong, China, and Korea, but are significant only in the model with fractionally cointegrated error correction terms for the oil market of the other three countries. Of particular interest are the signs of the estimates for the error correction term, which are all negative for the oil markets, implying that when the oil price is too high relative to the stock price the current oil price will be adjusted downward to meet the long-run equilibrium relationship. Third, for the asymmetric specifications there are bidirectional volatility spillovers between both markets and the direction of the information flow seems to be stronger from stock to oil. Fourth, the coefficients for the asymmetric term are all significantly negative for both markets, but the oil market does not have a significant effect for all models. However, the coefficients for the asymmetric term are all significant, implying that the leverage effect does exist in the oil and stock markets.

      • KCI등재

        영문 : 국제통상 ; 한국의 대 중국 업종별 FDI와 산업내무역에 관한 연구

        김성기 ( Seong Ki Kim ),강한균 ( Han Gyoun Kang ) 국제지역학회 2009 국제지역연구 Vol.13 No.3

        The purpose of this paper is to analyse the effect of Korean FDI(1990-2008) in China by industries on exports and imports between two countries. We use time series regression, Vector Error Correction Model and Impulse Response Function as methodologies. Our findings through empirical tests are as follows. First Korean FDI in China increases Korean exports with China but shows a tendency to decrease due to the local content of China. Second Korean FDI in China increases Korean imports in SITC 8 with China. Finally Korean trade surplus caused by Korean FDI in China shrinks due to the decreasing of exports and increasing of imports in Korea. Korean FDI in China should be oriented host country`s market oriented rather than production efficiency oriented because of unfriendly foreign investment environments in China.

      • KCI등재

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