• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.677-680
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• 2002

요즘 원격 교육의 필요성으로 인하여 교사 연수에 있어서도 기존 출석 연수와 병행하여 원격연수가 증가하는 추세에 있다. 그러나 현재 이루어지고 있는 원격 연수의 상당 부분은 실제 현장 교사들이 원하고 교사 연수의 핵심인 교수법 향상에 대한 것보다는 교과에 대한 지식이나 기능위주로 시행되고 있는 것이 사실이다. 교사 연수의 궁극적인 목적인 교수법 향상을 위해서는 연수생들이 경험이 풍부하고 교수법이 뛰어난 교사가 실제 수업하는 것을 보고 동료 교사들끼리 서로 충분히 토의를 거치고 배우는 형태의 연수가 유용할 것이다. 그러나 시간, 인원, 경비 등의 문제로 실제 그렇게 하기 어려우므로, 교수-학습 지도안과 동기화된 동영상 중심으로 이루어진 원격 연수 시스템을 구축하는 것이 좋을 것이다. 본 연구에서는 동기화 동영상 저작 도구를 개발하고 이를 활용하여 원격 연수 시스템을 구축해서 교사들의 교수법 향상에 많은 도움이 되리라 기대한다.

• The Journal of the Korea Contents Association
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• v.6 no.11
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• pp.295-301
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• 2006

The scope ID field of IPv6 multicast address indicates the zone of the destination for which a multicast traffic is intended. Without any further examination on the header field, the scope ID enables a router to determine whether the traffic will be forwarded to a subnet or not. For the graceful migration from IPv4 networks to IPv6 networks, various IPv6 applications working through IPv4 networks are indispensable during the migration period. This paper describes development of an interactive remote lecture system providing service integration on voice, image, and data of teaching materials. Access right to the network for dialog among multicast group members is controlled via additional TCP (Transmission Control Protocol) session. A jitter buffer algorithm was implemented to improve the voice communication jitters.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2021.06a
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• pp.173-175
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• 2021

최근 코로나시대의 비대면적 사회환경에서 원격 회의 요구가 증가하고 있다. 기존의 비대면 환경에서의 회의나 강의 어플리케이션에서 회의 참가자의 참여도와 몰입도를 향상시키기 위해 본 논문에서는 VR 기술을 기반으로 한 원격 회의, 강의 어플리케이션을 제안하였다. 본 논문의 어플리케이션은 양방향통신방식으로 설계 및 구성되었으며, Unity 프로그램을 사용하여 어플리케이션을 제작하고 사용자는 Oculus2 기기를 통하여 VR 환경의 어플리케이션을 실행하였다.

• Nuclear industry
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• v.22 no.8 s.234
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• pp.50-54
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• 2002

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 1996.10a
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• pp.824-827
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• 1996

• Journal of Gifted/Talented Education
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• v.13 no.3
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• pp.1-17
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• 2003

Development and evaluation of distance learning for the gifted students in science and mathematics In this study, we developed and administrated the distance learning for the gifted students in science and mathematics, and analysed their responses. To do this, four types of teaching programs - lectures using program for distance learning, practice activities using simulation program, tasks solving programs based on discussions, and problem solving activities - were developed and students responses were analysed in eight area - stimulus, difficulties, structure, learning circumstances, involvement, interaction, learning outcomes, comparison with other learning -. As results, it was found that many students responded positively and thought programs helped their creativity, logical thinking, intelligent ability, and information searching ability. Students preferred practice activities based on appropriate guidances to lectures providing detailed explanations. And interaction could be stimulated by inducing discussion.

• Journal of Engineering Education Research
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• v.15 no.4
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• pp.66-75
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• 2012

The purpose of this study is to analyze the learners' satisfactions of the video conferencing for global engineering education and provide the implications for effective video conferencing. This study analyzed the learners' satisfactions on their participation in the video conferencing. We conducted a questionnaire survey with 132 subjects who studied in the video conferencing universities, and performed interviews with 27 learners. The results include learners wanted to have more practical themes to satisfy their interests; faculty roles among domestic professors and abroad professors should be specified: distance learners should be guided to have diverse interactions among themselves. The implications are explored for the future study and video conferencing practices.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10b
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• pp.673-675
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• 1999

인터넷의 발전에 따라 교육 형태는 인터넷을 이용한 원격 교육으로 변하고 있다. 현재의 동향은 주로 영상 강의 시스템으로 치우쳐 있다. 그러나 이 시스템은 원격 강의를 위해 고용량의 전용선과 고가의 멀티미디어 장비가 필요하다. 그러므로 본 논문에서는 현재의 인터넷 환경에서 웹과 자바를 이용하여 사용자의 편의를 고려한 자동 문제 출제 시스템과, 출제된 문제를 임의로 추출하여 학습자가 문제를 요구할 때마다 매번 다른 유형의 문제를 보여주는 시스템을 제안하고 구현한다. 그래서 편하고 안정적인 시스템을 제공하는 동시에 현재의 교육 시스템을 병행하여 최대한의 교육 효과를 내면서도 경제적인 교육 시스템을 개발하는데 그 목적이 있다.

• Journal of Korea Multimedia Society
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• v.3 no.6
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• pp.611-616
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• 2000

By the most important media to deliver the contents on a remote instruction we commonly use audio and documents. A number of remote instruction system are trying to offer the video, but they did not acquire satisfiable results because of the limited network and width. Also, they use the general web browsers that have a lot of unspecific users access the contents. Also, they use the general web browsers that have a lot of unspecific users access the contents. Like this most systems that use the continuous media have not offer the satisfiable contents because of the network limitation. Moreover, because they use the web browser, they offer the contents having documents(web pages) only. In this paper, we propose a web-based remote instruction system on real-time using audio and documents which are the most important media for a information delivery. In addition to the system, we use a action synchronization mechanism between the web browsers. If the instructor uses web pages on his computer and explains the contents of them, the learners see the same web pages as the instructor's and listens to his voice.

• The Journal of the Korea Contents Association
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• v.20 no.7
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• pp.429-437
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• 2020

In this study, we examine the satisfaction and dissatisfaction factors on the perceptions of online lecture content among open and distance university learners, especially focusing on age groups differences. The result of the study shows that clear differences exist between age groups in regards to the factors which insure excellent course in online learning. For example, young adults in their 20s and 30s determined 'useful for practical life, 'screen sensitive to audiovisual', and 'recently created lectures' as the most influential factors for online learning content satisfaction. However, older age groups in their 40s and above apparently showed a high preference for factors such as 'instructor's enthusiasm and attitude', and 'clear and easy-to-understand explanations.' The findings of the study imply that learners' recognition concerning content satisfaction may differ depending on age groups. Moreover, this study suggests that considering the growing importance of online learning in relation to the COVID-19 pandemic, age groups should be considered in developing online course content.