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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.
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. Purpose: In this paper, we propose a design technique for the safety characterization grounding in the construction of the photovoltaic power generation complex which can be useful and useful as an alternative power energy source in our society. In other words, we will introduce the application of safety grounding for each application, which can improve and optimize the reliability of the internal grid from the cell module to the electric room in the photovoltaic power generation complex. Method: We analyze the earth resistivity of the soil in the solar power plant and use the computer program (CDEGS) to analyze the contact voltage and stratospheric voltage causing the electric shock, and propose the calculation and calculation method of the safety ground. In addition, we will discuss the importance of semi-permanent ground electrode selection in consideration of soil environment. Results: We could obtain the maximum and minimum value of ground resistivity for each of the three areas of the data measured by the Wenner 4 - electrode method. The measured data was substituted into the basic equation and calculated with a MATLAB computer program. That is, it can be determined that the thickness of the minimum resistance value is the most favorable soil environment for installing the ground electrode. Conclusion: Through this study, we propose a grounding system design method that can suppress the potential rise on the ground surface in the inner grid of solar power plant according to each case. However, the development of smart devices capable of accumulating big data and a monitoring system capable of real-time monitoring of seismic changes in earth resistances and grounding systems should be further studied.
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)
김홍용(Hong Yong Kim),고일향(Il Hyang Ko),이진호(Jin Ho Lee),김관엽(Kwan Yop Kim),류종철(Jong Cheol Ryu),차순주(Soon Joo Cha),신원창(Won Chang Shin),박태준(Tae Joon Park),최원충(Won chung Choi) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.4
Carcinoid tumors which arise from enterochromaffin cells are usually found in the appendix, ileun, bronchus and rectum. Carcinoid tumors of the biliary tract are exceedingly rare and pre-operative diagnosis is very difficult. We report a case of carcinoid tumor of the gallbladder in a 43-year-old man presenting jaundice and right upper quadrant abdominal pain as a chief complaint. A tumor of the neck of gallbladder was demonstrated with ultrasonography, computed tomography, endoscopic retrograde cholangiopan-creatography, and percutaneous cholangiography and was confirmed as carcinoid tumor at operation.
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)
김홍용(Hong Yong Kim),한재희(Jae Hee Han),임철완(Chull Wan Ihm) 대한피부과학회 1993 대한피부과학회지 Vol.31 No.6
AFX is a fibrohistiocytic tumor which usually shows benign clinical rocess despite malignant histolgy. We report a case of AFX showing storiform pattern distribution of tumor cells which developed on the right temple area of a 70-year-oldwoman.
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.