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- 저자 : 이 혁(Lee Hyuck) (검색결과 2 건)
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정미경(Jung Mi Gyoung),이 혁(Lee Hyuck),이귀상(Lee Guee Sang) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.3
DD(Decision Diagrams) is an efficient operational data structure for an optimal expression of boolean functions. In a graph-based synthesis using DD, the goal of optimization decreases representation space for boolean functions. This paper represents boolean functions using OPKFDD(Ordered Pseudo-Kronecker Functional Decision Diagrams) for a graph-based synthesis and is based on the number of nodes as the criterion of DD size. For a property of OPKFDD that is able to select one of different decomposition types for each node, OPKFDD is variable in its size by the decomposition types selection of each node and input variable order. This paper proposes a method for generating OPKFDD efficiently from the current BDD(Binary Decision Diagram) Data structures and an algorithm for minimizing one. In the multiple output functions, the relations of each function affect the number of nodes of OPKFDD. Therefore this paper proposes a method to decide the input variable order considering the above cases. Experimental results of comparing with the current representation methods and the reordering methods for deciding input variable order are shown.
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Vibrio parahaemolyticus와 Vibrio vulnificus 중복 감염에 의한 급성 위장관염 1예
이남용,기창석,이 혁,송재훈 대한감염학회 1998 감염 Vol.30 No.5
비브리오속의 중복 감염은 대부분의 병원성 비브리오속이 해수에서 잘 증식하는 호염성 세균이며 30℃ 이하의 낮은 온도에서 잘 자랄 뿐만 아니라 생굴과 어패류에서 자주 분리되는 등 동일한 생태를 보이는데 반해 매우 드물다. 그러나, 비브리오속은 여러 가지 질병 양상을 보일 수 있으며 인체 침습성, 병원성 및 항균제 감수성이 다르기 때문에 중복 감염을 진단하는 것은 환자 치료에 매우 중요하다. 저자들은 밴댕이(Herklotsichthys zunasi)회를 먹은 후 점액성 설사와 복통 및 구토를 보인 환자에서 Vibiro parahaemolyticus와 Vibrio vulnificus를 동시에 분리하였기에 증례와 함께 보고한다. Acute gastroenteritis caused by more than one Vibrio species has been rarely reported although most pathogenic Vibrio species share the same natural habitats. Recognition of multiple Vibrio species in one or more infectious processes is crucial in the management of patients because invasiveness, virulence, and resistance to antimicrobials can vary from species to species. We report a case of acute gastroenteritis by Vibrio parahaemolyticus and Vibrio vulnificus. The patient was a previously healthy 47-year old man who presented with watery mucoid diarrhea, abdominal cramps, and vomiting. On the previous day, he had eaten raw fish and developed the above symptoms about 10 hours later. The patient received only supportive therapy and was discharged on the same day with improvement. V. parahaemolyticus and V. vulnificus were isolated from stool specimen. The patient was fully recovered and subsequent stool culture demonstrated no pathogenic microorganisms.
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