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한성환(Sung-whan Han),박준규(Jun-ku Pack),김상민(Sang-min Kim),서대영(Dae-Young Seo) 한국정보과학회 2006 한국정보과학회 학술발표논문집 Vol.33 No.2D
현재 많은 PVR SetTop Box가 시중에 나와있는데 그 가격은 만만치가 않다. 또한 요즈음은 PDA와 각 집에 컴퓨터가 널리 보급되어 있다. 이러한 요소들을 종합하여 가장 실용적이고 기능적인 저렴한 가격의 시스템을 구축하는데 그 의미가 있고 이러한 시스템을 제어하는데 큰 의미를 둔다. 본 논문은 저렴한 TV수신카드를 이용한 방송시스템의 구축과 PVR시스템 구현과 OSGi Framework를 이용한 서버 및 제어서버 구현, 그리고 PDA와 Servlet을 이용한 방송청취와 원격지에서 OSGi 서버를 통한 PVR의 제어 및 시청기능을 구현하였다.
프로필렌 회수공정에서 화재 및 폭발 사고의 피해영향 해석
한성환(Seong-Hwan Han),이헌창(Hern-Chang Lee),박교식(Kyoshik Park),김태옥(Tae-Ok Kim) 한국가스학회 2014 한국가스학회지 Vol.18 No.1
본 연구에서는 석유화학공정에서 잠재위험요소를 확인하고, 사고 결과분석을 통해 안전대책 수립 등의 위험관리 방안을 제시하고자 하였다. 이를 위해 프로필렌 회수공정(PRP)에서 현실적인 상황을 고려한 누출 시나리오를 선정하고, PHAST RISK(ver. 6.7) 프로그램을 사용하여 화재 및 폭발 사고의 피해범위를 산출하고, 피해영향을 해석하였다. 그 결과, 6개의 PRP 공정지역 중에서 디프로파나이저 지역, 디에타나이저 지역 및 히트펌프 지역에서는 화재 및 폭발 사고의 피해범위가 매우 크게 나타났다. 따라서 제트화재가 발생하는 공정지역에서는 200 m의 반경 내에서 사람이 상주할 수 있는 건물을 설치하지 않는 것이 바람직하고, 재고량과 압력이 큰 공정지역에서는 사고위험을 사전에 예방해야 하고, 사고 발생 시에는 신속한 대처방안 수립이 요구되었다. This study aims to suggest risk management plan including safety measures through hazard identification followed by consequence analysis in petrochemical plants. Consequence analysis was performed through practical release scenario by using PHAST RISK(ver. 6.7) software in the propylene recovery process(PRP). As results, consequences by fire or explosion accidents in the depropanizer zone, deethanizer zone and heat pump zone were relatively larger than other else zones among six process zones in the PRP. In the case of jet fire, it is recommendable not to install residence building within 200 m of the process zone. Additionally, process zones having large inventory or high pressure must be prevented from accidents and required to establish quick response against accidents.
김일한(Il Han Kim),한성환(Sung Whon Ha),박찬일(Charn Il Park),심영수(Young Soo Shim),김락경(Noe Kyeong Kim),김건열(Keun Youl Kim),한용철(Yong Chol Han) 대한방사선종양학회 1984 Radiation Oncology Journal Vol.2 No.2
From 1979 to 1982, 80 patients with unresectable non-small-cell lung cancer without metastasis were treated with high-dose radiotherapy to the primary and to regional lymph nodes with or without supraclavicular lymphatics in the Department of Therapeutic Radiology, Seoul National University Hospital. Of these, 56 patients(70%) were completely evaluable and 59 patients(74%) had squamous cell carcinoma, 13% large cell undifferentiated carcinoma and 8% adenocarcinoma, 21 patients(26%) had StageⅡ and 59 patients(74%) had Stage Ⅲ. The complete and parial response rate in the high-dose(≈6,000 rad) radiotherapy was 70% with 19% complete response, 69 patients(86%) failed in the treatment, by the failure pattern, 64% had local failure alone, 35% had local failure and distant metastasis and 1% had distant metastasis alone. The failure rate in the thorax were 76% in squamous cell carcinoma, 40% in adenocarcinoma and 20% in large cell undifferentiated carcinoma. Preliminary result shows that actuarial survival at 1, 2 and 3 years were 56%, 26% and 20% in overall patients and 64%, 37% and 21% in StageⅡ and 54%, 21% and 18% in StageⅢ, respectively. Overall median survival was 14 months; 17 months in StageⅡ and 13 months in StageⅢ. 8 patients(10%) have lived a minimum of 2 years with no evidence of disease. There was no fatal complication confirmed to be induced by radiotherapy, so definitive high-dose radiotherapy was tolerated well without major problems and resulted in good local control and survival.
한성환 ( Sung Hwahn Hahn ),한진형 ( Jin Hyung Han ),김경묵 ( Kyung Mook Kim ),김도형 ( Do Hyung Kim ),김윤섭 ( Youn Seup Kim ),박재석 ( Jae Seuk Park ),지영구 ( Young Koo Jee ) 대한내과학회 2011 대한내과학회지 Vol.80 No.6
Kimura disease is a rare chronic inflammatory disorder of unknown etiology, suggestive of an allergic or autoimmune mechanism, which presents mainly as soft tissue masses in the head and neck area in young Asian males. Blood tests show eosinophilia and an elevated immunoglobulin E; the typical pathologic findings are lymphoid follicular hyperplasia, interfollicular eosinophilic infiltration, and vascular hyperplasia. There is no standard treatment; surgical resection is preferred and systemic steroid or radiotherapy is used to treat disease relapses. Kimura disease in unusual sites has been reported, but there are few cases with long-term observations because of its benign nature. Here, we present the case of a female with recurrent Kimura disease; we follow her progress for about 5 years after surgical resection of masses in the right groin area, an unusual site, with a brief review of the literature. (Korean J Med 2011;80:745-750)