• Proceedings of the Korea Information Processing Society Conference
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• 2001.10a
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• pp.627-630
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• 2001

정보화 시대를 살아가는 구성원중 하나인 청각 및 언어 장애인들의 경우, 정보 전달 및 소통이 필요한 일상 생활은 물론, 교육 현장에서도 어려움을 겪고 있는 것이 현실이다. 따라서 이러한 어려움을 극복하기 위해 장애인 보조 시스템의 개발이 진행되고 있으나 그 결과는 아직 미미하다. 본 논문은 청각 및 언어 장애인들에게 컴퓨터와의 상호 작용을 통해 정보 전달을 지원할 수 있는 시스템을 구축하여 더 나은 교육 환경을 제공하는데 그 목적이 있다. 즉, 사이버 공간에서 수화하는 아바타를 통해 정보를 전달하는 시스템을 설계하고 구축한다. 그 첫 번째 단계로써 입력 장치를 통해 받아들인 단어를 자소별로 변환한 뒤, 3D 지화 애니메이션으로 표현하였으며, 이 연구 결과는 수화 아바타 시스템의 기반이 될 것이다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.219-222
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• 2019

4차 산업혁명이 언급되면서 3D 프린터, 로봇, 인공지능, 빅데이터 등 신기술이 발전하고 이는 사회 구조를 변화시킬 것으로 예상된다. 이에 새로운 디지털 기기, 기술들을 이해하는 디지털 리터러시가 중요해지고 있다. 2015 OECD PISA에서 ICT 배경조사 중 한국은 접근성, 활용성 부분과 2018 국가수준 디지털 리터러시 수준 측정연구, 학생들의 디지털 기기의 인식 여부 및 활용 여부 실태조사를 바탕으로 디지털 기기 활용 공간 구성 및 디지털 기기 활용 콘텐츠를 다음과 같이 제안하였다. 먼저 구체적 조작기인 초등학생임을 고려하여 디지털 기기 위주 프로그램으로 선정하였다. 디지털 기기 활용 공간은 기반 기기로 컴퓨터(노트북), 유 무선 인터넷, 디지털 기기로 3D 프린터 및 3D 프린팅 펜, 스마트폰 기반 VR기기, AR마커, 블록코딩 기반 피지컬 컴퓨팅 교구 등을 이용해서 구성하였다. 활용하는 콘텐츠는 학생들의 인식 여부 및 수준에 맞춰 체험 위주의 프로그램과 학습, 콘텐츠 제작, 문제해결 프로그램으로 제시하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.490-493
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• 2020

Using AR technology, which has recently emerged as an innovative technology, AR mobile application for infants was planned. In the form of combining play and education, children's interest is aroused and access to education to various fields is increased. Unity 3D Engine and Vuforia SDK were mainly used to design Android-based mobile applications.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.107-109
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• 2016

본 연구는 사용자의 신체 맞춤형 3D 가상모델에 VR을 이용한 패션 코디네이션이 가능하도록 설계한 시스템을 제안한다. 특별히 사용자의 신체 각 부위의 정보에 따라 3D모델을 조정할 수 있으며 의상데이터는 3D asset Database에서 최적의 조건으로 선별되어 VR 환경에서 코디네이션이 가능하도록 설계되었다. 따라서 사용자에게 가장 적합한 의상 정보를 현실감 있게 제공하여 만족도를 높일 것으로 기대한다. 본 시스템은 온오프라인에서 모두 활용 가능하며 가상 패션쇼, 가상 디자인, 패션 교육 등에 연계 가능하다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.229-231
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• 2017

Today, one of the most important reasons that PBR(Physical Based Rendering) softwares becomes a core part of the essential tools in the video game mateiral field is that they can save time to produce realistic materials and can produce better effects than traditional material making methods. This paper will compare and analyze the characteristics, and merits and demerits of these various kinds of PBR softwares(MARI, QUIXEL, Substace designer), and showed the result of analyses about the fact that educating which of the above three PBR software is helpful and beneficial for the students for the efficient education in the university where should teach much in the limited time.

• The Mathematical Education
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• v.60 no.4
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• pp.467-491
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• 2021

This study is a study on the coding mathematics curriculum that converges elementary and middle school mathematics and information subjects and a minimum coding game-based education method for this. For the past 3 years, the coding mathematics curriculum and educational methods to effectively operate the curriculum were studied by applying them to 6th graders of elementary school and 1st graders of middle school. As a result of the first year of research, the coding mathematics curriculum was modified to a coding environment including the mathematical concept of a three-dimensional coordinate space, and the three-dimensional object was improved to be output as a real 3D print. As a result of the 2nd year study, it was improved so that even low-level students can build buildings by introducing different level commands for each component of the building so that self-directed learning is possible. As a result of the 3rd year study, a teaching-learning strategy based on a minimal coding game was designed to induce an increase in the level of computational thinking, and evaluation and feedback for diagnosing computational thinking were developed. Educational methods to promote self-directed learning and computing thinking ability, and researched coding mathematics curriculum are meaningful for the research and practice of the convergence education of school mathematics and informatics.

• CDE review
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• v.11 no.3
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• pp.36-44
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• 2005

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.988-991
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• 2015

3D printing technology is instrument that can create real objects in three-dimensional space, as printed on paper, if the three-dimensional designs are made. 3D printing technology has been recently used in various field of medicine, and also biomedical application of three dimensional printing technology remains one of the most important research topics until now. 3D printing technology is causing a revolutionary change in the overall automotive manufacturing, aerospace, marine, medical and so on. The medical industry applications of current 3D printer are a virtual simulation, custom medical implants manufactured, practice of medical personnel. In this study, we analyzed 3D printing technology and application cases for medical services.

• Journal of Korean Ophthalmic Optics Society
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• v.9 no.1
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• pp.1-9
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• 2004

In this study, we presented a research about the development of the phoropter simulation program for education using the 3-D virtual reality in order to study the ophthalmic optics rather efficiently. Especially, by putting the facility such as the refractive error analysis of the eyeball in the cyber tutor inside, we have made the learner to learn and confirm the present situation of refractive correction through refractive power of principal meridians. By organizing the system which induces the active involvement of the learner and showing the result of the execution to the learner intuitively, the implementation of the more efficient education-environment can be possible. Consequently, it is expected that this program will be greatly helpful for the optician training as well as the ophthalmic optics education. As a next phase of study, we will develope the development technique of this simulator more and extend the cyber tutor contents more and make the web service version of this program to be provided through the internet network in order to inspire the learning desire of the learner more and more.

• The Mathematical Education
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• v.29 no.1
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• pp.41-45
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• 1990

S. Z. Wang, B. Y. Li, Z. M. Gao and K. Iseki proved some fixed point theorems on expansion mappings, which correspond some contractive mappings. In a recent paper, B. E. Rhoades generalized the results for in of mappings. In this paper, we obtain the following theorem, which generalizes the result of B. E. Rhoades. THEOREM. Let A, B, S and T be mappings from a complete metric space (X, d) into itself satisfying the following conditions: (1) ${\Phi}$(d(A$\chi$, By))$\geq$d(Sx, Ty) holds for all x and y in X, where ${\Phi}$ : R$\^$+/ \longrightarrowR$\^$+/ is non-decreasing, uppersemicontinuous and ${\Phi}$(t) < t for each t > 0, (2) A and B are surjective, (3) one of A, B, S and T is continuous, and (4) the pairs A, S and B, T are compatible. Then A, B, S and T have a unique common fixed point in X.