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김병윤 ( Byung Yoon Kim ),연제호 ( Je Ho Yeon ),민성욱 ( Seong Uk Min ),이동훈 ( Dong Hun Lee ),서대헌 ( Dae Hun Suh ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.4
Ectopic nail is characterized by growth of nail-like tissue in a location other than the nail bed. It is an extremely rare disorder that can be either congenital or acquired from incidents such as trauma. An 8-year old female presented with a complaint of a nail-like lesion on the dorsal surface around the center of the right fifth toe. It had been present for 3 years, while the patient continuously clipped it upon growth. The fifth toe was initially injured by a chair that had fallen on that toe 4 years prior to her visit. There was no associated bony deformity or other physical changes in the nail. A clinical diagnosis of ectopic nail was made and it was surgically excised under local anesthesia. The histopathological examination revealed a normal nail unit and there was no recurrence during the 6 month follow-up period. (Korean J Dermatol 2009;47(4):491~493)
김병윤 ( Byung Yoon Kim ),허선영 ( Sun Young Huh ),조광현 ( Kwang Hyun Cho ) 大韓皮膚科學會 2010 大韓皮膚科學會誌 Vol.48 No.2
Subungual osteochonroma is a benign bone tumor of the fingers and toes. Clinically it may present as a slow-growing firm mass causing deformity of the overlying nail. It must be differentiated from other subungual masses such as verruca vulgaris, subungual exostosis and enchondroma. Here we present a case of subungual osteochondroma of the right 1st toe presenting as a verrucous skin lesion in an 11-year-old male. Radiographic examination showed an outgrowth of the bony tissue on the dorsum of the distal phalangeal bone beneath the nail. Histopathologic examination revealed a characteristic trabecular bone formation covered with a hyaline cartilage cap. The lesion was successfully treated by total excision and curettage of the underlying bony surface. (Korean J Dermatol 2010;48(2):152∼154)
김병윤(Kim, Byung-Yoon),허용정(Huh Yong-Jeong) 한국산학기술학회 2006 한국산학기술학회 학술대회 Vol.- No.-
본 논문은 보행자 머리 상해치 예측을 통해 보행자 보호 법규의 만족여부를 판단하는 시스템을 구축 하는데 있다. 차량의 FE DATA와 더미 DATA를 입력하고, MADYMO solver를 이용하여 해석을 수행한다. 이를 통해 나온 결과 HIC(머리상해치)와 보행자 보호 법규에서 제시하는 HIC(머리상해치)와 비교를 통해 만족여부를 판단한다. 강화되는 보행자 보호 법규를 만족시키기 위해 차량시스템의 개선을 유도하고 이를 통해 차량 대 보행자 사고 시 보행자의 생명을 구하는데 그 궁극적인 목적이 있다.