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관계형 데이터베이스에서 XML 뷰 기반의 질의 처리 모델
최규원(Kyu-Won Choi),정채영(Chae-Yeong Jeong),김영옥(Young-Ok Kim),김영균(Young-Kyun Kim),강현석(Hyun-Syug Kang),배종민(Jong-Min Bae) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.1B
XML 기반의 데이터베이스 통합을 위한 랩퍼 시스템은 자료 저장소의 내용을 XML로 표현한다. 본 논문은 관계형 데이터베이스의 내용을 XML 스키마로 표현하는 랩퍼 시스템에서 사용자가 XML 뷰를 정의했을 때, XML 뷰에 대한 사용자 질의어 처리에 대하여 논한다. XML 뷰를 정의하는 언어와 사용자 질의어가 모두 XQuery일 때, XML 뷰와 사용자 질의어의 합성, XQuery로 표현된 사용자 질의어를 SQL로 번역, 그리고 질의 결과를 XML 문서로 변환하는 XML 질의어 처리 알고리즘을 제시한다.
최규원 ( Kyu Won Choi ),이채영 ( Chae Young Lee ),김영훈 ( Young Hun Kim ),김기호 ( Ki Ho Kim ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.10
Sjogren`s syndrome is an autoimmune disorder that`s characterized by dry eyes and dry mouth, and this is due to lymphocytic infiltration of the lacrimal and salivary glands. The skin lesions in Sjogren`s syndrome usually manifest with xeroderma, pruritus and pigmentation, but sometimes the lesions appear as annular erythema. Patients with Sjogren`s syndrome rarely display fever, with the exception of the cases that show complicated illness such as lymphoma. We report here on a case of a 27-year-old woman who was diagnosed with Sjogren`s syndrome, and she showed signs of annular erythema and a fever of an unknown origin. (Korean J Dermatol 2008;46(10):1391∼1394)
최규원 ( Kyu Won Choi ),이채영 ( Chae Young Lee ),김기호 ( Ki Ho Kim ),김영훈 ( Young Hun Kim ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.8
Warty dyskeratoma (WD) is a benign solitary tumor characterized clinically as a crateriform keratotic nodule and histologically by focal acantholytic dyskeratosis. The lesion of WD presents as a whitish or grayish hyperkeratotic papule with an umbilicated center, often involving the face, the scalp, or the back. Lesions are usually less than 1~2 cm in size. In 2007 a new plaque form of WD was first described by Omulecki. We report a case WD on the forehead presenting as a plaque form in a 9-year-old boy. (Korean J Dermatol 2008;46(8):1100~1102)
최규원 ( Kyu Won Choi ),이채영 ( Chae Young Lee ),이영규 ( Yeong Kyu Lee ),김홍석 ( Hong Seok Kim ),이채욱 ( Chae Wook Lee ),김기호 ( Ki Ho Kim ),김영훈 ( Young Hun Kim ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.6
Xanthoma disseminatum (XD) is a rare, potentially progressive non-Langerhans cell histiocytosis, which preferentially affects males in their childhood or young adulthood. It is characterized by the insidious onset of small, yellowish-red to brown papules and nodules that are discrete and disseminated. They characteristically involve the eyelids and flexural areas of the axillary and inguinal folds, and the antecubital and popliteal fossae. Systemic disease frequently occurs, the most common manifestation being diabetes insipidus (DI), which occurs in about 40% of cases and is due to deposition of xanthoma cells in the hypothalamic-pituitary axis. We present a case of XD with DI, which was treated with the combination therapy of CO2 laser vaporization, cyclophosphamide, electrocauterization and synthetic anti-diuretic hormone. (Korean J Dermatol 2008;46(6):826∼830)
관계형 데이터베이스에서 XML 뷰 기반의 질의 처리 모델
정채영,최규원,김영옥,김영균,강현석,배종민,Jung, Chai-Young,Choi, Kyu-Won,Kim, Young-Ok,Kim, Young-Kyun,Kang, Hyun-Syug,Bae, Jong-Min 한국정보처리학회 2003 정보처리학회논문지D Vol.10 No.2
본 논문은 XML 기반의 데이터베이스 통합 방법론 중에서 관계형 데이터베이스 모델에 대한 랩퍼 시스템의 질의어 처리에 대하여 논한다. 관계형 데이터베이스의 내용은 W3C에서 제안된 XML Schema로 표현되며, 사용자는 XML Schema에 대하여 XML 질의어인 XQuery로써 질의를 한다. 그리고, 개발된 랩퍼 시스템은 사용자가 정의한 XML 뷰를 지원한다. XML 뷰 정의 언어는 XQuery이다. 이러한 환경에서 본 논문은 새로운 XML 질의 처리 모델을 제시한다. XML 뷰와 사용자 질의어의 합성 알고리즘, XQuery를 SQL로 변환하는 알고리즘, 그리고 XML 문서 생성을 위한 템플릿 구성 알고리즘을 제시한다. This paper addresses the query processing component of a wrapper system for a relational database model based on the XML view in integrating databases. The schema of a relational database is represented as XML Schema that is proposed by W3C. Users submit a query using the XML query language XQuery over the XML Schema. The wrapper system to be developed supports an user-defined XML view. XQuery is also used as the view definition language. In this environment, this paper suggests a new XML query processing model. We propose the composition algorithm of an XML view with an user query, the translation algorithm of XQuery into SQL, and the XML template construction algorithm for generating XML documents.
저용량의 Cyclosporine으로 치료한 전신성 광택태선
이영규 ( Yeong Kyu Lee ),최규원 ( Kyu Won Choi ),김영훈 ( Young Hun Kim ),이채욱 ( Chae Wook Lee ),김기호 ( Ki Ho Kim ) 대한피부과학회 2007 대한피부과학회지 Vol.45 No.12
Lichen nitidus is a rare and chronic inflammatory dermatosis first described by Pinkus in 1907. The etiology of it is still unknown and the majority of instances appear in children and young adults. The lesions are usually asymptomatic but may be mildly pruritic and the Koebner phenomenon may be observed. It is characterized by flesh-colored, minute, shiny papules occurring on the genitalia, abdomen, chest, and extremities. This disorder is most often localized, but there are rare reports of patients having a more generalized distribution of lesions. Although lichen nitidus is self-limited in most cases without any sequelae, the course of generalized lichen nitidus is unpredictable. We report a case of a 16-year-old girl diagnosed by generalized lichen nitidus refractory to general treatment and successfully treated with low dose cyclosporine (2 mg/kg/day). (Korean J Dermatol 2007;45(12): 1311∼1314)
고용량의 전신 스테로이드 정맥 주사 후 소장 천공이 동반한 Churg-Strauss 증후군
이영규 ( Yeong Kyu Lee ),최규원 ( Kyu Won Choi ),이채영 ( Chae Young Lee ),김홍석 ( Hong Seok Kim ),김기호 ( Ki Ho Kim ),김영훈 ( Young Hun Kim ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.7
Churg-Strauss syndrome is an uncommon disorder characterized by bronchial asthma or allergic rhinitis, peripheral eosinophilia, systemic necrotizing vasculitis, and extravascular granuloma formation. It commonly affects the lungs, skin, gastrointestinal tract, peripheral nerve, kidneys and the heart. Gastrointestinal symptoms of Churg-Strauss syndrome are common, mainly shown in abdominal pain, diarrhea, or bleeding. Ulceration, perforation, stenosis can occurr with ischemia induced by vasculitis. Gastrointestinal perforation by Churg-Strauss syndrome has been reported rarely, and was recently discovered to have a close correlation to systemic steroid treatment. Nearly one third of patients infected with a gastrointestinal perforation die. This report covers the interesting case of a 54 year-old woman who was being treated for asthma, and was diagnosed as Churg-Strauss syndrome by multiple polyneuropathy and ulcerative macules. Small intestine perforation was generated 4 days after high dose systemic steroid intravenous injection. (Korean J Dermatol 2008;46(7):950~954)