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객체모델을 이용한 XML DTD의 OODB 스키마로의 변환
최문영,주경수,Choe, Mun-Yeong,Ju, Gyeong-Su 한국정보처리학회 2002 정보처리학회논문지D Vol.9 No.2
B2B 전자상거래와 같이 XML.을 이용한 정보교환이 확산되고 있으며 이에 따라 상호 교환되는 정보에 대하여 체계적이며 안정적인 저장관리가 요구되고 있다. 이를 위해 XML 응용과 데이터베이스 연계를 위한 다양한 연구가 관계형 데이터베이스를 중심으로 수행되었다. 그러나 계층구조를 갖는 XML 데이터를 2차원 테이블의 집합인 관계형 정보로 표현하는 관계형 데이터베이스로의 저장에는 본질적인 한계가 있어, 계층구조를 지원하는 객체지향 데이터베이스로의 저장이 요망된다. 이에 따라 계층구조를 갖는 XML 데이터를 객체지향 데이터 베이스로 지장하기 위한 모델링 방안이 요구된다. 본 논문에서는 객체모델을 토대로 DTD를 객체 지향 데이터베이스 스키마로 변환하기 위한 방법을 제안한다. 이를 위하여 먼저 DTD를 객체모델로 변환시키기 위한 객체변환 방안을 제시하고, 변환된 객체모델을 객체지향 데이터베이스 스키마로 변경시키기 위한 스키마 변환 방법을 제안했다. Information exchange on XML such as B2B electronic commerce is spreading. Therefore the systematic and stable management mechanism for storing the exchanged information is needed. For this goal there are many research activities for connection between XML application and relational database. But because XML data have hierarchical structures and relational database can store only flat-structured data, we need to store XML data in object-oriented database that support hierarchical structure. Accordingly the modeling methodology for storing XML data in object-oriented database is needed. In this parer, the transforming methods based on object model from XML DTD to object-oriented database schema is proposed. For this, we first introduce mapping methods that map XML DTD to object model and then we propose soem methods that transform from the object model to object-oriented database schema.
최문영 ( Choe Mun Yeong ),송현주 ( Song Hyeon Ju ),김미연 ( Kim Mi Yeon ),이영숙 ( Lee Yeong Sug ),김승정 ( Kim Seung Jeong ),최규복 ( Choe Gyu Bog ),윤견일 ( Yun Gyeon Il ),강덕희 ( Kang Deog Hui ),박기덕 ( Park Gi Deog ) 대한신장학회 2004 Kidney Research and Clinical Practice Vol.23 No.2
Baclofen, a derivative of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA), is used for the treatment of muscle spasm, intractable hiccups and multiple sclerosis. It is mostly excreted by glomerular filtration with a clearance that is proportional to creatinine clearance. Early hemodialysis is a treatment of the choice for baclofen-induced neurologic complication in renal failure patients. We experienced a 57-year-old hemodialysis patient with right arm muscle spasm who developed baclofen-associated encephalopathy by a single dose of oral baclofen (10 mg). He admitted to the hospital with the symptom of stuporous mental status with no specific focal neurologic signs. Brain CT imaging and blood biochemistry showed no specific abnormality. EEG revealed the typical metabolic encephalopathy findings, such as triphasic wave and frontal lobe syndrome with delta wave. After daily hemodialysis for 3 days, there was a complete recovery of an altered mentality. After one month later, the follow-up EEG showed normal finding with the resolution of abnormal waves. We report this case with a review of relevant literature. Baclofen should be used carefully, and rather recommended not to be administered in patients with renal failure. (Korean J Nephrol 2004;23(2):353-357)
송현주 ( Song Hyeon Ju ),최문영 ( Choe Mun Yeong ),김미연 ( Kim Mi Yeon ),이영숙 ( Lee Yeong Sug ),김승정 ( Kim Seung Jeong ),최규복 ( Choe Gyu Bog ),윤견일 ( Yun Gyeon Il ),서정수 ( Seo Jeong Su ),강덕희 ( Kang Deog Hui ) 대한신장학회 2003 Kidney Research and Clinical Practice Vol.22 No.6
Spontaneous rupture of the kidney. W?nderlich syndrome, is a rare event but potentially life-threatening condition. The most comman causes are clear cell carcinoma, benign angiomyolipoma and vascular disease. Among this event, acute pyelonephritis is a very unusual cause. A 67-year-old diabetic woman was admitted with high fever and left flank pain due to acute pyelonephritis. She had uterine prolapse for 10 years with both renal hydronephrosis before this event. Abdominal ultrasonography and CT scan showed fluid collection around left kidney with a rupture of renal parenchyme at lower pole. The renal angiography showed displaced capsular artery due to subcapsular hematoma and decreased blood flow at lower pole. The percutaneous needle aspiration revealed blood collection around left kidney, which confirmed spontaneous rupture of the kidney. We report this case with a review of the relevant literature. (Korean J Nephrol 2003;22(6):757-762)