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충돌 손상에 의한 첫 번째 늑골 골절에 동반된 Horner 증후군
마대성 ( Dae Sung Ma ),조현진 ( Hyun Jin Cho ),이정남 ( Jung Nam Lee ),전양빈 ( Yang Bin Jeon ) 대한외상학회 2014 大韓外傷學會誌 Vol.27 No.4
Patients with Horner’s syndrome exhibit a variety of symptoms, including miosis, palpebral ptosis, and anhidrosis. This syndrome is caused by interruptions of the sympathetic neural pathways. This paper describes two cases of patients with Horner’s syndrome who experienced a first rib fracture after crushing injuries. [ J Trauma Inj 2014; 27: 201-3 ]
마대성(Dae-Sung Ma),유진호(Jin-Ho You),김병기(Byung-Gi Kim) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅲ
본 논문은 병렬 프로그램의 성능 분석을 위한 성능 감시기에서 가시화층의 일반화된 뷰를 설계하고 구현하였다. 대부분의 성능 감시기는 하드웨어에 의존적인 특성화된 뷰를 제공함으로서 이식성이나 확장성이 부족하다. 일반화된 뷰를 제공하는 성능 감시기는 데이터 필터층에서 필터링된 성능 분석 데이터를 이용하여 프로그래머가 정의한 데이터의 범의에 따라 뷰를 스스로 확장할 수 있다. 또한, CallBack 기능을 제공하여 관심 있는 데이터를 쉽게 볼 수 있다. 프로그래머는 성능 감시기의 일반화된 뷰를 이용하여 다양한 형태의 성능 분석결과를 볼 수 있다.
흡수기 형상과 반사경 배치에 따른 접시형 집열기 성능평가
마대성(Ma Dae-Sung),김용(Kim Yong),서태범(Seo Tae-Beom),강용혁(Kang Yong-heack) 한국태양에너지학회 2006 한국태양에너지학회 학술대회논문집 Vol.- No.-
This article presents an analysis of a dish solar collector. This project investigates a perfect mirror(1.5 m diameter) and 5 arrays of 12 identical spherical mirror facets(0.4 m diameter). Five equal area(1.5 ㎡) with spherical reflector array configurations are designed and compared; Perfect mirror and 2AND4 INLINE, 2TOP, INLINE, STAGGERED. The surface reflectivity of each mirror varies from 0.75 to 0.95 and a focal length of the mirrors is 1.5 m. Also, this project has three different receivers(dome type, conical type, cylindrical type). The surface absorptivity and aperture diameter of the receivers is 0.9 and 0.15m, respectively. The incident solar flux is predicted using TracePro. Based on the ray tracing analysis, the performance of the dish solar collectors are estimated with different mirror arrays and receiver shapes. The results show that the dome type has the best performance in receiver shapes and the 2AND4 INLINE has the best performance in mirror arrays except perfect mirror.
김철,마대성,Kim, Chul,Ma, Dai-Sung 한국정보교육학회 2005 정보교육학회논문지 Vol.9 No.1
The grade-schooler could develope computer literacy education with the Peer tutoring system which is method of one higher level learner can teach and help another learner. This system can hold the result in common each other, also a progress to get the successful result. Moreover, they do the project in cooperation. After the application of the peer tutoring, the basic of computer ability increase in quality. We have side-effects which are increased the interest of computer function after real teach and learning process. And we get good atmosphere which is confidence each other and helping mood in studying another school work. If this study should process changed form, it will be developed more regular system than this study.
안병상,마대성,An, Byeong-Sang,Ma, Dai-Sung 한국정보교육학회 2010 정보교육학회논문지 Vol.14 No.4
지금 학교에서는 소품종 다량 생산이라는 시대의 변화에 발맞추어 학생 개개인의 재능을 진단하고 육성하기 위한 다양한 시도가 지속적으로 이루어지고 있다. 그러나 현장에서는 학생 개별 재능을 파악하는데 도움을 주는 시스템이 개발되어 활용되고 있지 않다. 본 연구에서는 학생 개별 재능 진단 육성에 도움을 주고자 혼합형 종합재능기록시스템을 설계 및 구현하여 효과를 검증해 보았다. 교사와 학부모는 관찰, 검사지, 수상기록 분석, 방과후 활동 분석 등의 방법으로 학생 개별 재능을 파악하였고 학생은 다중지능검사를 통하여 자신의 재능을 파악하였다. 본 시스템을 개발하여 적용한 결과, 교사는 개별 아동의 재능을 발견할 수 있는 기회가 되었으며, 학부모 또한 학생 개별 재능을 파악하는데 도움을 주었으며 이를 활용한 다양한 교육활동으로 다중지능이 육성되었다.
컴퓨팅 사고력 측정을 위한 추상화 역량 평가 기준 개발
주여진,마대성,Ju, Yeojin,Ma, Daisung 한국정보교육학회 2018 정보교육학회논문지 Vol.22 No.3
Wing은 21세기를 살아가기 위한 역량으로 컴퓨팅 사고력의 중요성을 역설하였다. 본 연구에서는 컴퓨팅 사고력의 추상화를 관련 연구를 통해 객체 추상화, 데이터 추상화, 절차 추상화로 분류하였다. 또한 추상화 역량 평가를 위해 추상화 성취기준과 평가기준을 개발하였다. 학교 현장에 적용한 결과 학생들은 문제 해결을 위해 글과 그림으로 표현하는 객체 추상화, 데이터 추상화 역량은 우수하지만, 컴퓨터 프로그램으로 작성하는데 어려움을 겪고 있음을 알 수 있었다. 본 연구에서 개발된 추상화 역량 평가는 소프트웨어 교육을 위한 학생 지도에 많은 도움을 줄 것이다. Wing, J. M. emphasized the importance of computational thinking competency to live in the 21st century. In this study, the abstraction of computational thinking is classified into object abstraction, data abstraction, and procedural abstraction through related studies. In addition, abstraction achievement and assessment standards were developed for the abstractable competency assessment. As a result of applying to the school site, the students showed that the object abstraction and the data abstraction competency which are expressed in writing and drawing, they are excellent in solving the problem. However, students hard to write a computer program. The abstractable competency assessment developed in this study will help teach students to teach software education.
양진화,마대성,김정랑,Yang, Jin-Hwa,Ma, Dai-Sung,Kim, Jeong-Rang 한국정보교육학회 2001 정보교육학회논문지 Vol.4 No.2
A project learning is the model to solve the problem in cooperation with the members of a group. The purpose of this study is to make a new learning model using a web on the traditional project learning model. A Web has the proper nature for students to make their learning environment, so that this study embodied Student Directed Web based project learning system to allow them to expand their abilities. All action of students, that is, suggesting main subject, making plans, activating and adjusting them, and evaluation can be happened in this system. According to the result of applying the system, participants in Students Directed Web based Project Learning intend to implement learning activities more positively, affirmatively and cooperatively than the existing ones.
김정랑,마대성,정성균,Kim, Jeong-Rang,Ma, Dae-Sung,Chung, Sung-Kyun 한국정보교육학회 2003 정보교육학회논문지 Vol.7 No.1
In elementary moral education, performance assessment should be conducted in both cognitive, affective, and behavioral domains in harmony. The present study attempts to consider the features of performance assessment in elementary moral education; classify them by the types of assessment, and; implement and apply the web-based performance assessment system, in which teachers, students, and parents all participate. The development of this web-based performance assessment system for elementary moral education allowed the students to carry out the performance assessment process by themselves and to see the result no matter when and where they are. The students became interested in their own behavior, and the parents got to have a broader range of understanding for their children by participating in personal in the assessment procedure. The parents also realized that home guidance for their children's life habits became pretty easy. It is expected that the performance assessment system carried out based on the collaboration between the school and the family will be helpful in applying the contents of the moral subject studied at school and the relevant knowledge and skills to the actual life outside the school.