• Journal of Christian Education in Korea
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• v.64
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• pp.203-235
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• 2020

The purpose of this study is to identify the degree of social presence perceived by students and to explore the factors that have affected it after practicing Christian Education classes as synchronous distance course due to Covid-19. It is also to suggest effective ways in the aspects of the design and operation to improve social presence. In order to measure social presence and derive influencing factors, research related to synchronous distance class and social presence is summarized through literature review. The researchers also surveyed 58 students in three courses of Christian education major at a University in Gyeonggi-do and conducted in-depth interviews with 6 students. The main findings are as follows: First, the sense of social presence was moderate, the emotional bond was the lowest by sub-factor, the open communication, the sense of community was moderate, and the mutual support and concentration were the highest. Second, factors that had a positive impact on the sense of social reality were group activities, selfintroduction activities, active participation in classes, mutual communication such as Q & A or response to peer learners' opinions during lectures by professors, questions, feedback, etc, and having a smaller number of students. Factors that had a negative impact on the perception of social presence were lack of private conversations, poor participation in classes, lack of communication with each other, and difficulty concentrating. The causes of these negative factors were technical problems and limitations arising from zoom, inconvenience and distracting surroundings, lack of time, and psychological awkwardness. Reflecting the results of the study, orientation to effective synchronous distance course, guidance on smooth communication methods, strengthening the role of professors to promote learning, strengthening group activities and learner-centered activities, and proposing a smaller scale of students were ways that are offered to improve the sense of social presence in synchronous distance courses.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.185-190
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• 2009

Recent performing-art has a trend to be new cultural contents style which mixes various genre not just traditional way. Especially in stage performance, unique performance is playing using high technology and image. In sound performance, one of technology, a new experiment is trying which re-analyze the sound and mixes the result with image. But in public performance we have a technical difficulty with making visualization regarding the sound in realtime. Because we can not make visualization with instant sound from performers and audience it is difficult to interact smoothly between performer and audience. To resolve this kind of restriction, this paper suggests Real-time sound visualization. And we use string music instrument for sound source. Using the MaxMSP/Jitter based the Midi, we build image control system then we test and control the image with Korg Nano Kontrol. With above experiment we can verify verious emotion, feeling and rhythm of performer according to performance environment and also we can verify the real time interactive image which can be changed momently by performer's action.

• Journal of Digital Convergence
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• v.18 no.4
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• pp.221-228
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• 2020

As industrial technology advances, convenience is also being developed. Many people living in big cities are commuting using transportation such as buses, taxis, cars, etc. and enjoy leisure, so research is needed to reduce the damages caused by traffic accidents. This study deals with estimating road-level rainfall in real-time. A rainfall observation data and radar data provided by the Korea meteorological administration were collected in real-time to create an integrated database, which was estimated as road-level rainfall by universal kriging method. Besides, we conducted a study to interactively visualization of mash-up road traffic information in real-time with integrating rainfall information.

• Journal of The Korean Association For Science Education
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• v.22 no.1
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• pp.93-101
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• 2002

This study investigated the effect of small group discussion for science concept learning in cooperative learning environments that encourage verbal interaction with peers upon students' understanding of the concepts at the particulate level, application abilities, perceptions of students' negotiation, and communication apprehension. Two classes of 7th grade at a coed middle school were assigned to the control and the treatment groups. They were taught about change of states and motion of molecules for 7 class periods. Two-way ANCOVA results revealed that the scores of a conceptions test for the treatment group were significantly higher than those for the control group, and that the low-achievers in the treatment group performed better than those in the control group. However, the scores of two groups did not differ significantly in an application test. The perceptions of students' negotiation for the treatment group were more positive, but the scores of the communication apprehension for two groups were not significantly different.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.6
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• pp.67-78
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• 2017

Traffic congestion cost is increasing annually. Specifically congestion caused by the CDB traffic contains more than a half of the total congestion cost. Recent advancement in the field of Big Data, AI paved the way to industry revolution 4.0. And, these new technologies creates tremendous changes in the traffic information dissemination. Eventually, accurate and timely traffic information will give a positive impact on decreasing traffic congestion cost. This study, therefore, focused on developing both recurrent and non-recurrent congestion prediction models on urban roads by adopting Recurrent Neural Network(RNN), a tribe in machine learning. Two hidden layers with scaled conjugate gradient backpropagation algorithm were selected, and tested. Result of the analysis driven the authors to 25 meaningful links out of 33 total links that have appropriate mean square errors. Authors concluded that RNN model is a feasible model to predict congestion.

• The Journal of the Korea Contents Association
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• v.18 no.8
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• pp.561-572
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• 2018

This study the awareness and the demands of the parents on the communication level for social participation of the youth with developmental disability were identified and investigated the relation on client's age, detection time of the condition, disability grades, handicapped types, speech therapy period. For the non-parametric test, Man-Whitney U test, and Kruskal-Wallis test were performed and for post-hoc test, Scheffe test was performed. The results of this study was that the significant difference was found in the awareness and the demand of the communication level of the youth with developmental disability according to the age of children, time of discovery, disability grade, type of disability and speech therapy period. In conclusion, the speech therapy for the youth with developmental disability should be made in the dimension of communication for the purpose of social participation. The follow-up research to emphasize the social support and the institutional backup will be required.

• School Mathematics
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• v.15 no.3
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• pp.585-601
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• 2013

The purpose of this study is to investigate the relationship of communication skills and self-directed learning ability between mathematically gifted elementary students and non-gifted students. The subjects include 126 mathematically gifted elementary students from gifted education centers and gifted classes in elementary schools in D Metropolitan City and 124 non-gifted students that were non categorized as gifted students or special children in the same city. Employed in the study were the tests of communication skills and self-directed learning ability. Through this study, there are notable differences in communication skills and self-directed learning ability between mathematically gifted students and non-gifted students. Thus, those communication skills and self-directed learning ability should be taken into account when organizing and running a curriculum. In addition, developing a program for mathematically gifted students, as well as in teaching and learning communication skills and self-directed learning ability sufficient to consider the interrelationships between.

• The Korean Journal of Elementary Counseling
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• v.10 no.2
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• pp.203-221
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• 2011

This research aims to make people realize the importance of styles of father's communication and ego-resilience in school life adaptation and, furthermore, provide necessary data for the communication between father and children by confirming the mediation effect of ego-resilience in the relationship between the styles of father's communication, which the child recognizes, and the school life adaptation. The selected research questions to achieve such research purpose are like the following. First, what is the correlation among school life adaptation, ego-resilience, and communications styles of father that child recognizes? Second, does the ego-resilience show mediation effect in the relationship between the school life adaptation and communication styles of the father that child recognizes? The subjects for this research were 345 children in 5thand 6thgrades from B elementary school in Seo-gu, Incheon. SPSS 18.0 program was used for the collected data, and correlation analysis was performed in order to discover the relationship among variables. Regression analysis was performed to verify the mediation effect of ego-resilience. The summary of this research is like the following. First, as the result of the correlation analysis of the father's communication styles, ego-resilience and the school life adaptation, which the child recognized, the three variables showed statistically significant correlation. Among the functional and dysfunctional communication styles that child recognized, the placating style showed positive correlation with ego-resilience and school life adaptation, and among dysfunctional communication styles, the intellectualizing style, distracting style, and blaming style showed negative correlation with ego-resilience and school life adaptation. Ego-resilience and school life adaptation showed positive correlation. Second, after looking at the mediation effect of ego-resilience in the relationship of the father's communication style and school life adaptation, the result showed that ego-resilience had partial mediation effect in the relationship of the father's communication style and school life adaptation. In this research, it has significance in the aspect that it confirmed the relationship and route between the father's communication styles, school life adaptation, and ego-resilience, which child recognized. Therefore, the effort is required to research and apply desirable communication method between fathers and children in order to help students to adapt well in school life, and moreover, it is also required that ego-resilience improvement program gets developed and applied at the school field.

• Journal of the Korean earth science society
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• v.41 no.3
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• pp.307-319
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• 2020

The purpose of this study was to determine whether there are differences in the verbal interactions of earth science gifted depending on their communications structures and group status in small group activities. To this end, a small group activity was conducted to measure the density of the earth, and 8 small groups were selected, including 4 co-ownership type and 4 monopolistics type groups with different communication structures. And then, the framework was developed for analyzing verbal interactions to compare the differences in characteristics between small groups. The results are as follows. First, regardless of the communication structures, there were showing a simple pingpong-type communication structures for all small groups. Second, negative interactions such as 'restraint', 'command', 'complaint', and 'lack of confidence' predominantly appeared in all small groups. Third, the students in the status of out-lookers in small groups were mainly verbal interactions, such as instructing the other person, acting against the other person's actions, and expressing dissatisfaction with the attitudes and abilities of members. Therefore, teachers should guide students to use higher-level verbal interactions in their group activities in small group activities, and engage in students communication to prevent negative interactions from occurring. The teachers also need to check the level of achievement for students in the status of out-lookers in advance and guide them to participate more actively in small group activities. This study is meaningful in that it can be sued to design teaching and learning to improve students' problem solving and communication skills.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1154-1157
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• 2011

최근 급속도로 확산되고 있는 스마트폰 기반의 SNS(Social Network Service)들은 정보수집 및 의사소통, 혹은 엔터테인먼트 기능 제공을 통해 사용자에게 유용한 도구로 자리 잡고 있다. 본 논문에서는 홈 네트워크 기반의 에너지 관리 시스템을 이용하여 사용 그룹간의 경쟁심을 유발할 수 있는 모바일 SNS를 설계하고자 한다. 이를 위해, 소셜미디어의 기능 블럭을 토대로 에너지 관리를 위한 서비스 요구사항을 정의하고, 에너지 절약을 유도할 수 있는 모니터링 요소를 추출하여 그룹 간에 에너지 소비량을 실시간으로 공유할 수 있는 SNS를 설계한다. 이는 단순한 정보의 확산 및 수집을 목적으로 사용하는 SNS가 아닌, 장기적인 경제효과와 에너지 절약이라는 공익성까지 갖춘 새로운 목적의 SNS 개발을 의미한다.