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신장 이식 환자에서 cyclosporine 복용 후 발생한 유방 섬유선종 1례
우광진 ( Kwang Jin Woo ),김지형 ( Ji Hyung Kim ),홍성아 ( Seong Ah Hong ),박무용 ( Moo Yong Park ),최수정 ( Soo Jeong Choi ),김진국 ( Jin Kuk Kim ),황승덕 ( Seung Duk Hwang ),이은혜 ( Eun Hae Lee ),김희경 ( Hee Kyung Kim ) 대한신장학회 2010 Kidney Research and Clinical Practice Vol.29 No.3
A 43-year-old woman who had received kidney transplantation 2 years before was admitted for masses on both axilla. Masses had variable sizes, and were round or oval-shaped with echogenicity on breast ultrasound. Pathologic examination using fine needle aspiration showed masses were fibroadenoma, fibroadenoid hyperplasia, and fat necrosis. We switched cyclosporine to tacrolimus. After 6 months of conversion, breast masses decreased in size on the follow-up breast USG.
풍력발전설비 낙뢰보호를 위한 규정 KEC의 접지방식에 따른 낙뢰 과전압 분석
표광진(Kuang-Jin Pyo),이택기 (Taeck-Kie Lee),김규호 (Kyu-Ho Kim),김진형(Jin-Hyung Kim),우정욱(Jung-Wook Woo) 대한전기학회 2020 전기학회논문지 Vol.69 No.4
Standard for lightning protection of wind turbine KEC has information on grounding to prevent damage of wind power plant due to lightning strikes. In the case of KEC, grounding is performed using equipotential bonding to eliminate the potential difference due to the abnormal overvoltage of wind power generation facility, and the resistance of the grounding is also limited to below a certain level. This analysis includes the contents of lightning overvoltage generated by direct lightning strikes and lightning-induced with equipotential bonding according to KEC standards. Although there is a fine potential difference due to the equipotential bonding conductor, compared with independent ground, common ground is very effective in eliminating potential difference, and the use of softening among common ground methods is more useful for lightning overvoltage reduction effect.
풍력터빈에서 서지 보호 장치와 접지의 적용에 따른 직격뢰 및 유도뢰의 낙뢰 과전압 저감 효과 분석
표광진(Kuang-Jin Pyo),이택기(Taeck-Kie Lee),김규호(Kyu-Ho Kim),우정욱(Jung-Wook Woo) 대한전기학회 2019 전기학회논문지 Vol.68 No.12
The ways to improve the safety of power facilities is to install surge protection devices and grounding method to protect against the lightning surge. This paper analyzes how much lightning overvoltages are reduced by giving different rated voltage to the surge protection device and applying different grounding method when the direct lightning strike and the lightning-induced is applied separately. This analysis also contains how the distance between wind turbine and the lightning strike point affects the lightning overvoltage created by the lightning-induced.