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Dijkstra의 mini 언어를 Pascal로 변환할 경우 병렬 치환문의 처리
이수현(Lee Su-Hyun),최광무(Choe Kwang-Moo) 한국정보과학회 1988 한국정보과학회 학술발표논문집 Vol.15 No.1
Mini 언어는 Dijkstra가 설계한 언어로서 병렬 치환문(concurrent assignment), 비결정적 수행(guarded command)등의 특징을 가진 block-structured 언어이다. 본 논문에서는 mini 언어로 작성된 프로그램을 Pascal 프로그램으로 변환시켜 주는 변환기를 설계하였고 변환된 프로그램을 수행시켜 보았다. 특히 병렬 치환문을 일련의 순차 치환문으로 바꾸는 과정에서 임시 변수를 줄이는 문제에 대하여 고찰하여 보았다.
이수현(Su-Hyun Lee) 한국컴퓨터정보학회 2017 韓國컴퓨터情報學會論文誌 Vol.22 No.1
In recent years there has been a rise in the use and interest of the flipped learning as a teaching and learning paradigm. The flipped learning model includes any use of Internet technology to enrich the learning in a classroom, so that a professor can spend more time interacting with students instead of lecturing. In the flipped model, students viewed video lectures online outside of class time. Students then performed two kinds of assignments, a teamwork assignment and an individual work assignment, through the class time. In this paper, we propose a flipped educational model for a college class. This experimental research compares class of college algorithm using the flipped classroom methods and the traditional lecture-homework structure and its effect on student achievement. The result data of mid-term exam and final exam were analyzed and compared with previous year data. The findings of this research show that there was not a significant difference in the scores of student between two lecturing methods. The survey result and lecture evaluation by students show that students are in favor of the flipped learning.
이수현(Lee Su-Hyun),이재홍(Lee, Jae-Hong) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.11
This paper presents form-finding of Tensegrity structures by using Force method. The Force method is generalized to all types of skeletal structures, such as rigid-jointed frames, pin-jointed planar trusses and ball-jointed space trusses. This method has easier basic concept, which is based on equilibrium equation, than Finite Element Method. In addition, this method is appealing to engineers because the properties of members of structures most often depend on the member force than joint displacement. Therefore, this study applies to analyze about form-finding of Tensegrity structures by using Force method’s merit.
지역난방 방식 건축물의 난방 급탕 통합배관 시스템 실증연구
이수현(Su Hyun Lee),안희수(Hui su Ahn),김성범(Seong Beom Kim),홍영기(Young Gi Hong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.11
The purpose of this study is to verify the efficiency of the integrated piping system that has been recently distributed in Korea through empirical research. The peak and average usage of the integrated pipe system was lower than that of the 4-pipe system, and the primary return temperature of the district heating was maintained at an appropriate temperature. In addition, the heat return temperature of the HIU(Heat interface unit) installed in the integrated pipe system was maintained at a low temperature to prove its efficiency.
연구논문 : 의료오류 공개에 대한 대학생들의 태도 조사
이수현 ( Su Hyun Lee ),김한아 ( Han A Kim ),한흥식 ( Heung Sik Han ),김성수 ( Sung Soo Kim ) 한국의료윤리학회 2011 한국의료윤리학회지 Vol.14 No.3
Object: The purpose of this study was to identify the attitudes of patients regarding medical error. Methods: The questionnaires were administrated to 145 college students in Busan, one hundred twenty three usable 123 questionnaires were analyzed. The questionnaires consist of 4 major concepts; 1) knowledge, 2) attitudes toward disclosure of medical error, 3) expectations for doctors` behaviors, 4) barriers to the disclosure of the medical error. Results: Approximately 92% of respondents supported the immediate disclosure of medical errors, and 62.6% supported full disclosure including near misses. Approximately 57% believed that it would be most effective if doctors themselves communicated errors to patients, while almost 93% said that it was a doctor`s obligation to do so. Regarding reasons for disclosure, 44.7% said that it would reduce doctors` feelings of guilt, while 45.5% said that it would also increase patient trust for doctors. Respondents also thought that the barriers to the full disclosure of medical errors were (1) damaged reputations (30.9%), (2) worries about medical lawsuits (22.8%), and (3) professional discipline (22.0%). Conclusion: Most of the participants in this survey support the immediate disclosure of medical errors regardless of the seriousness of the error. Furthermore the participants regarded disclosure of medical error as doctors` obligation. In order to meet the patients` high expectation regarding the medical error, this might be a good time for us to find a way to close the gap between patients` expectation and doctors` current practice.
이수현(Su-Hyun Lee) 한국컴퓨터정보학회 2016 한국컴퓨터정보학회 학술발표논문집 Vol.24 No.1
본 연구에서는 컴퓨터공학의 대표적인 교과목인 알고리즘 교과목에 대하여 거꾸로 학습을 적용한 결과를 보여준다. 학생들은 집에서 온라인 컨텐츠로 학습을 하고 수업 시간에는 숙제를 수행하는 방식으로 수업을 진행하였다. 수업시간에 진행하는 과제는 그룹 과제와 개인 과제로 구성되어 있어, 토론을 활성화 하여 학습 효과를 높이도록 하였다. 성과 분석 결과, 거꾸로 학습이 전통적인 수업에 비하여 동등하거나 또는 더 나은 효과가 있음을 보여 주었다.
이수현(Su-Hyun Lee),박찬일(Chan-Ill Park),강철호(Cheol-Ho Gang),이혁준(Hyukjoon Lee),이형근(Hyungkeun Lee),정용진(Yong-Jin Jeong) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
본 논문에서는 임베디드 환경을 위한 객체인식 시스템의 구조 및 실시간 처리를 위한 객체인식기의 하드웨어설계를 제안한다. 제안된 구조는 SIFT(Scale Invariant Feature Transform)를 이용하여 사물의 특징점을 추출하고, 비교하여 객체를 인식한다. SIFT는 영상의 크기 및 회전 등의 변화에 적응이 뛰어난 알고리즘이지만, 복잡한 연산이 반복되어 연산시간이 많은 특성상 임베디드 환경에서 실시간 처리가 어렵다. 따라서 해당 알고리즘을 하드웨어로 설계하여, 임베디드 사물인식 시스템에 적용한다. 사물인식의 빠른 처리와 인식영역의 구분을 위해 JSEG 영상분할 알고리즘을 활용하며, SIFT 특징점 추출 연산과 병렬 실행이 가능하도록 SIFT와 함께 하드웨어 구조로 설계한다.