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鄭宗夏,朱華在,李華永,梁文浩 최신의학사 1974 最新醫學 Vol.17 No.11
Two cases of primary malignant lymphoma of ileum is presented. The first case was operated with the diagnosis of abdominal tumor and the other one was with the intussusception caused by the inte?stinal tumor. Both were proved as primary ileal malignant lymphoma (Histiocytic lymphoma) by histopathological examination. A brief review of literature is made about the intestinal tumor especially on the malignant lymphoma.
웹 서비스 지원을 위한 예외처리 기반 동적 서비스 조정 프레임워크
정종하(Jongha Jung),장우혁(woohyuk Jang),이성독,한동수(Dongsu Han) 한국정보과학회 2005 한국정보과학회 학술발표논문집 Vol.32 No.2
웹 서비스는 서비스 가용성(availability)과 성능(performance)면에서 신뢰성을 항상 보장해 주지 못한다. 동적 서비스 조정(Dynamic Service Coordination)은 웹 서비스를 호출하는 시스템이나 응용 프로그램 내에서의 비 신뢰적인 문제상황을 처리하는 기술이다. 이 환경 내에서의 웹 서비스는 제한된 시간내에 응답 하지 못하는 등의 문제가 발생 할 경우, 신뢰적인 웹 서비스의 호출을 위해 다른 웹 서비스로의 대체작업이 런타임(run-time)에 이뤄진다. 본 논문에서는 웹 서비스를 위한 동적 서비스 조정 프레임워크를 제안한다. 프레임워크 내에서 동적 서비스 조정의 지원 및 웹 서비스 호출을 담당하는 클래스와 워크플로우가 생성되고, 생성된 클래스 메소드를 호출함으로써 신뢰적인 웹 서비스 호출이 가능하다. 호출작업이 간접적으로 이뤄짐으로 인해 어느 정도의 성능적 손실이 발생하나, 이 방식을 통해 얻는 시스템 유연성과 신뢰성의 측면을 고려한다면, 충분히 감 수 될 수 있다.
유한요소해석에 의한 다공경판 리거먼트의 ASME 응력강도 계산
정종하(Jong-Ha Chung),김동옥(Dong-Ok Kim) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
According to ASME NB-3217, membrane stress in the ligament of perforated heads shall be averaged through cross section and bending stress shall be averaged through width of ligament but gradient through plate thickness. However it has not been particularly specified for information on how to calculate them. Although a method of analysis for flat perforated plates is described in ASME Appendix Article A-8000, there are many constraints to apply this method. In this paper, a calculation method of stress intensities in perforated heads by finite element analysis is described and comparisons are shown between results from finite element analysis and analysis method of ASME Appendix A-8000.
텍스트 마이닝과 키워드 네트워크 분석을 활용한 중등 국어교사임용시험 작문 문항 분석
정종하(Jong-Ha Jung),최숙기(Sooki Choi) 한국교원대학교 뇌기반교육연구소 2019 Brain, Digital, & Learning Vol.9 No.4
The purpose of this study is to objectively analyze the central contents and the tendency of the questions of the writing questions of the Secondary Korean Teachers Employment Examination (Students 2009-2018) by applying text mining and language network analysis method In systematic diagnosis. As a research method, we analyzed the frequency of key words through text mining and the centrality analysis and visualization of language network. The analysis was conducted based on three centralities, Betweenness Centrality and Closeness Centrality. The top frequency keywords extracted from the 2009-2013 school years were composition, content, data, reader, student, method, and class. Among these higher frequency keywords, the key words of composition, content, and data had a high degree of linkage. The top frequency keywords extracted from 2014 to 2019 were teachers, students, methods, classes, and some. Among them, the key words of teacher showed high values in the centrality analysis. In addition, the mediation of activity keywords was higher than that of teachers. These findings expand the scope of the Korean Language and Item Analysis research on the employment examination for secondary school teachers, and derive ways to improve the research system at the national language level or to improve the employment examination system to be implemented after 2019 since the introduction of the 2015 revised curriculum. It is expected to provide meaningful information for the study.