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자동차 기능안전성을 위한 온톨로지 기반의 위험원 분석 및 위험 평가
노경현(Kyung-Hyun Roh),이금석(Keum-Suk Lee) 한국컴퓨터정보학회 2015 韓國컴퓨터情報學會論文誌 Vol.20 No.3
본 논문에서는 자동차 기능안전 표준인 ISO 26262에서 요구하는 위험원 분석 및 위험 평가에서 온톨로지와 추론 규칙을 적용하는 방법을 제안한다. 위험원 분석 및 위험 평가는 일반적으로 수작업으로 수행되어 많은 노력이 소요되고 오류가 발생하기 쉬우며 일관성과 정확성이 부족한 문제점이 있다. 이러한 문제를 해결하기 위해서 본 논문에서는 위험원을 온톨로지로 표현하고, 평가를 위한 온톨로지 규칙을 정의하여 자동화하고 일관성 및 정확성 문제를 개선한다. 본 제안 방법을 검증하기 위해서 ESCL(electronic steering column lock) 시스템에 적용하였다. 온톨로지 규칙 적용 결과를 DL(Description Logics) Query를 실행하여 제대로 동작하는지 확인하였으며, 이를 통해 위험 평가 시에 발생할 수 있는 오류를 파악할 수 있었다. The ISO 26262 standard requires a preliminary hazard analysis and risk assesment early in the development for automotive system. This is a first step for the development of an automotive system to determine the necessary safety measures to be implemented for a certain function. In this paper, we propose an ontology-based hazard analysis and risk assessment method for automotive functional safety. We use ontology to model the hazard and SWRL(Semantic Web Language) to describe risk analysis. The applicability of the proposed method is evaluated by the case study of an ESCL(electronic steering column lock) system. The result show that ontology deduction is useful for improving consistency and accuracy of hazard analysis and risk assessment.
동종골수이식을 한 환자에서 발생한 물방울양 건선 1 예
강숙경(Sook Kyoung Kang),노경현(Kyung Hyun Roh),고재경(Jai Kyoung Koh),문기찬(Kee Chan Moon),최지호(Jee Ho Choi),성경제(Kyung Jeh Sung) 대한피부과학회 2002 대한피부과학회지 Vol.40 No.5
In many student it has been demonstrated that donor-derived cells would eventually replace the hematopoietic and immune system of the recipient after allogeneie bone marrow transplantation (B.M.T). And there are siveral case reports desering resolution or development of autommune deseases after BMT. Psoriasis is considered to be an autoimmune disease of abnormal keratinocyte proliteration induced by T lymphocytes. Herein we describe a 17-year-old woman presenting with guttate psoriasis, who suffered from acute lymphocytic leukcmia and underwent allogencie BMT 6 months ago This is the First case of gultate psoriasis possibly associated with BMT in thee Korean literature.
강숙경,노경현,장성은,최지호,성경제,문기찬,고재경 대한피부과학회 2002 大韓皮膚科學會誌 Vol.40 No.4
Palmoplantar keratodermas are divided into autosomal dominant and autosomal recessive groups by the made of transmission. The autosomal dominantly transmitted group is further divided into epidermolytic and nonepidermolytic types according to the histological findings. Hereditary epidermolytic palmoplantar keratoderma manifests clinically as a localized thickening of the palms and soles. Herein w report a 29-year-old woman showing the typical clinical and histologic features of epidermolytic palmoplantar keratoderma without family history. This case could be spontaneous notations that will later breed a true autosomal dominant trait.
김경진,문기찬,성경제,최지호,고재경,노경현 대한피부과학회 2002 大韓皮膚科學會誌 Vol.40 No.3
Hair follicle nevus is a very rare hair follicle tumor and should be differentiated from other hair follicle hamartomas, such as trichofolliculoma, dilated pore of Winer, pilar sheath acanthoma, and trichodiscoma. We describe a 4-year-old female patient who presented erythematous papule on the face that was histopathologically diagnosed as hair follicle nevus.
김경진,문기찬,성경제,최지호,고재경,노경현 대한피부과학회 2001 大韓皮膚科學會誌 Vol.39 No.12
Verruciform xanthoma is a rare benign skin or mucosal lesion characterized by verrucous epithelial proliferation accompanied by a prominent replacement of the dermal papillae with foamy histiocytes. The majority of the cases occur on the oral mucosa, but other sites, particularly the genital region, may be involved. Genital verruciform xanthoma can simulate other benign or malignant skin conditions. We describe a 68-year-old man who presented yellow to skin-colored verrucous nodule on the scrotum of which histopathologic findings showed characteristics of verruciform xanthoma.