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윤정훈,안철민,이두연,조철호,김도영,손희영 대한내과학회 1987 대한내과학회지 Vol.33 No.1
Benign solitary schwannoma of the chest wall is rare disease. A 46-year old female patient was admitted to our hospital for the abnormal shadow on the chest roentgenogram. Chest X-ray and CT scan revealed a mass on the left lateral chest wall, Oh left lateral thoracotomy, this mass was turned out to be a hens egg sized mass of the inner chest wall. The mass was excised with ease. Histological section revealed a typical neurilemmoma. A brief rveiw of the literatures is given.
윤정훈,최윤철,이은진 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 논문집 Vol.23 No.4
In Korean traditional wooden architecture, joint performance varies with the material characteristics of timber, the form of joint, the precisionof timber-trimming and the like. Case studies prove that the beam-to-column joint type has large influence on the degrees of deformation and spacing. This is not only true of single-story buildings, but also of large-scale multi-story buildings more apparently. Therefore, this study followed the processof examining to joint types, producing their specimens and testing their structural performance. As a consequence of structural test, the dovetail jointspecimen showed the best outcomes of the maximum load and rigidity. Synthesizing the structural performances by respective forms of joints, theDoraegeoji dovetail joint specimen showed the higher performance, followed in order by the Doraegeoji mortise joint specimen and the Tongneokodovetail joint specimen. The structural performance of a building varies with the characteristics by the shouldering forms of penetrating beams andwith the joint types within the columns. This should be considered for the new construction or restoration of multi-story buildings, and be continuouslyresearched henceforth. 한국 전통 목조 건축물의 경우 구조적 성능은 재료 특성, 접합부의 형태, 치목의 정밀도 등에 따라 다르게 나타난다. 기존 사례 연구에서도 보와 기둥 접합부 형태는 변형 및 간격의 정도에 큰 영향을 미친다는 것을 보고하고 있다. 이는 단층 건물뿐만 아니라 대규모 다층 건물의 경우에도 마찬가지로 나타나고 있다. 따라서 본 연구에서는 접합부 형태에 대해 분석하고 모형을 제작하고 구조적 성능을 테스트하는 과정을 거쳤다. 그 결과, 주먹장맞춤의 실험체에서 최대 하중을 나타냈다. 각각의 형태의 접합부에 의한 구조적 성능을 종합하면, 도래걷이 주먹장맞춤이 가장 높은 성능을 나타내었으며, 다음으로 도래걷이 장부맞춤의 순으로 나타났다. 건물의 구조적 성능은 관통하는 보의 치목 형태와 기둥 내부의 접합부 형테에 따라 다르게 나타남을 알 수 있었으며, 이는 다층 건물의 신축 또는 복원을 위해 고려되어야하며 이후 계속 연구되어야 할것으로 사료된다.
윤정훈,최성호,Yoon, Jung-Hoon,Choi, Seong-Ho 대한치주과학회 2000 Journal of Periodontal & Implant Science Vol.30 No.3
Desquamative gingivitis is characterized by a diffuse erythema of the free and attached gingiva associated with areas of vesiculation, erosion, and desquamation. Desquamative gingivitis is not a distinct disease entity but represents a reaction pattern of the gingiva to various stimuli. Pemphigus vulgaris, cicatricial pemphigoid, and lichen planus may presents as desquamative gingivitis. We observed 3 patients whose disease was limited to the gingiva, and studied them by light and direct immunofluorescence microscope. We classified them according to clinical, histologic, and immunopathologic observations. Identification of the underlying causes of desquamative gingivitis is of utmost importance and is dependent upon clinical, histologic, and immunologic criteria.
개화성 백악-골 이형성증 : 다발성 외상성 골 낭과 동반한 증례
윤정훈,안상건,김수관 대한구강악안면병리학회 2005 대한구강악안면병리학회지 Vol.29 No.1
Florid cemento-osseous dyspl잃ia with concommitant traumatic bone cyst is uncommon condition. We report a case of florid cemento 。,sseous dysplasia involving four quadrants of the jaws and associated with large cystic lesion of the mandible misdiagnosed as a multiple odontogenic keratocysts in a 37-year-old Korean woman. Histological examination revealed unencapsulated fibroblastic proliferation with formation of bone and cementum, showing different developmental stages, and cys디c lesions resembling a traumatic bone cyst.