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김홍용,노준량,이영균,Kim, Hong-Yong,Kim, Hong-Yong,Lee, Yeong-Gyun 대한흉부심장혈관외과학회 1972 Journal of Chest Surgery (J Chest Surg) Vol.5 No.1
Bronchial adenoma,especially adenocystic carcinoma [cylindroma] of the tracheobronchial tree is relatlvely rare in incidence. This is the report of one case of cylindroma in a 28 year old female,surgically treated at the Deparment of Thoracic Surgery,Seoul National University Hospital. The tumor was located at the left main bronchus and completely obstructing the bronchial lumen.Left pneumonecromy was performed because of the irreversible bronchiectatic and fibrotic changes of the entire left lung.
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태양광 발전단지 내부 그리드의 안전 특성화 접지 설계에 관한 연구
김홍용,윤석호,Kim, Hong-Yong,Yoon, Suk-Ho 한국재난정보학회 2018 한국재난정보학회 논문집 Vol.14 No.2
연구목적: 본 논문에서는 우리사회의 대체 전력 에너지원으로 적합하고 유용하게 활용 할 수 있는 태양광 발전 단지 건설 시 안전 특성화 접지에 관한 설계 기법을 제안하고자 한다. 즉, 태양광 발전 단지 내의 셀 모듈부터 전기실까지 내부 그리드의 신뢰성을 향상하고 최적화 할 수 있는 용도별 안전 접지를 적용한 사례들을 소개하고자 한다. 연구방법: 태양광 발전 단지 내 토양의 대지 고유저항을 분석하고 컴퓨터 프로그램(CDEGS)을 활용해 전격을 일으키는 접촉전압과 보폭전압을 해석하여 안전접지에 관한 계산과 산출방법에 대해 제안한다. 또한, 토양 환경을 고려한 반영구적인 접지전극의 재료 선정에 관한 연구에 중요성을 논하고자 한다. 연구결과: Wenner 4 전극법으로 측정한 데이터 중 3개 지역의 CASE별 대지 고유저항 최대값과 최소값을 얻을 수 있었고 이 두 값으로 토양의 두께를 알 수 있다. 측정된 데이터를 기본수식 ${\rho}=6.28aR$에 대입하여 MATLAB 컴퓨터 프로그램으로 계산하였다. 즉, 최소 저항값의 두께는 접지전극을 설치하기에 가장 유리한 토양 환경임을 판단 할 수 있다. 결론: 본 연구를 통해 지역의 CASE별 태양광 발전소 내부 그리드에 대지 표면에 전위상승을 억제 할 수 있는 접지시스템 설계기법을 제안하였다. 하지만 대지의 고유저항과 접지시스템에 경련변화를 실시간으로 확인 할 수 있는 모니터링 시스템과 빅 데이터를 축적 할 수 있는 스마트 디바이스의 개발이 추가적으로 연구되어야 할 것이다.
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백반증 환자을 전신 광화학 요법으로 치료하던 중 발생한 다발성 광선 각화증
김홍용,성소영,이인섭 ( Hong Yong Kim,So Young Sung,In Seob Lee ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.5
Actinic kratosis can develop dnring PUVA therapy especially at high accumulative doses(more than 1000Joules/cm) but it can also develop at low accumulative doses(lese than 200Joules/cm). PUVA therapy should be done carefully and the dermatologist has to observe the patients skin more closely to detect development of the keratosis. We present a case of multiple actinic keratoses that developed during PUVA therapy in a 53 year old vitiligo patient. They developed during relatively low accumulative dose PUVA therapy(827Joules/cm2). (Korean J Dermatol 1997;35(5): 989-993)
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췌공장문합시 췌관 Stent를 경피적으로 배액하는 방법 및 문합부의 감시
류석용(Seok Yong Ryu),강현철(Hyeon Chul Kang),김홍용(Hong Yong Kim),한세환(Sehwan Han),이명수(Myeong Soo Lee),김홍주(Hong Ju Kim),김영덕(Young Duck Kim) 한국간담췌외과학회 1998 Annals of hepato-biliary-pancreatic surgery Vol.2 No.2
Long Percutaneous Stent Insertion in the Pancreatic Duct and Monitoring of Pancreaticojejunostomy Site Leakage in Periampullary Cancer PatientsSeok Yong Ryu, M.D., Hyeon Chul Kang, M.D., Hong Yong Kim, M.D., Sehwan Han, M.D., Myeong Soo Lee, M.D., Hong Ju Kim, M.D., Young Duck Kim, M.D., Department of Surgery, InJe University, Sanggye Paik Hospital(Background) Periampullary cancer is a relatively common malignancy and its incidence is increasing. Pancreaticoduodenectomy is the procedure of choice to eradicate the disease. However, leakage of the pancreaticojejunal anastomosis has been a major complication after pancreaticoduodenectomy, with a frequently reported incidence ranging from 5 to 25 percent. Various modalities of pancreaticojejunostomy have been investigated, but the ideal management of the pancreatic stump has still not been determined. We undertook this study to determine safe and effective pancreatic stump management and to monitor the security of pancreatic stump anastomosis by body fluid amylase level.(Patients and Methods) Between June 1997 and January 1998, 10 consecutive patients who underwent pancreaticoduodenectomy were evaluated retrospectively.The anastomosis between the pancreatic end and the jejunum was performed either as a duct-to-mucosa or an end-to-end invagination method(Dunking). A long silicone stent was used for intubation of the anastomosis(CSF-Cardiac/peritoneal Cath. inner diameter 1.3 mm, outer diameter 2.5 mm, length 90 cm, Medtronic, Medtronic PS medical, Goleta. CA. USA). External drainage of the long pancreatic duct tube was checked daily by measuring the amount of pancreatic juice. We placed two Penrose and one Jackson-Pratt drains near the anastomosis site during the operation. Patients were monitored for clinical evidence of a pancreatic fistula by analysis of amylase concentration in the serum and peritoneal drainage at 7 days after the operation. The normal range of body fluid amylase was defined as within five times the normal serum amylase level. Cholangiography, obtained through the T-tube or percutaneous transhepatic catheter, was performed 7 days after the operation to assess the leakage or obstruction at any of the three reconstructive anastomosis sites.(Results) No leakage from the pancreaticojejunostomy site was detected. Daily mean amount of pancreatic juice and body fluid amylase level were 76.6ml/day(range 0.4 -137.4ml/day) and 147.4 U/L(range : 44 - 323U/L), respectively.(Conclusion) External long pancreatic duct stent insertion is an effective and safe method for the management of pancreatic remnant. We were able to check daily the amount of pancreatic juice precisely. Effective decompression of P-Jstomy was achieved by long stent insertion. We were able to monitor the security of pancreatic stump anastomosis by measuring the body fluid amylase level. We suggest that our method is effective in the early detection and treatment of P-Jstomy site leakage by monitoring the levels of the body fluid amylase.
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김홍용 ( Hong Yong Kim ),송일문 ( Il Moon Song ),최창준 ( Chang Jun Choi ) 대한피부과학회 1995 대한피부과학회지 Vol.33 No.5
The development of tophi in th absence of prior episodes of gauty arthritis is unusual. We report a case of extensive tophi in a 31 year-old man, whose initial skin lesion had started without arthritis. (Kor J Dermatol 1995;33(5): 972-977)
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김홍용(Hong Yong Kim),최혜민(Hai Min Choi),명기범(Ki Bum Myung),국홍일(Hong Il Kook) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.6
We present a case of multiple cutaneous leiomyoma in a 45 year old woman. About 20 years ago, multiple skin colored papules developed on right cheek and man4ibular area. About 10 years after the onset of the disease a uterine myoma developed which wae tree,ted by total hysterectomy. The skin lesions were gradually increasing in number and size, Some larger nodular lesions changed to brown in color and became painful after cold exposure. The histopathologic finding showed typical leiomyoma arieing from arrector pilorum muscle.
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