• Journal of Digital Contents Society
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• v.15 no.6
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• pp.721-727
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• 2014

With the advent of smart phones in 2007, smart phones have been used as not only communication device but also important education tools. In this paper, we have developed a smart phone application and its management system for the interaction in the class. The interaction between a teacher and students are important in some large classes. The smart phone application we developed removed the restrictions of interactions in a large class and reduced time need for the interactions. We found that education effects were enhanced, and the time needed for the interaction was reduced.

• Aerospace Engineering and Technology
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• v.9 no.1
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• pp.84-92
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• 2010

Prior to the launch of COMS Satellite, the validation of the ground system for satellite operations has been performed using the real COMS, the satellite simulator and etc. In particular this paper will focus on the part of ground system test on which the simulator is used and it will present the usage, range and importance of the simulator utilization. Furthermore, it describes the practical experience on and its effect using Simulator for system validation, and suggests approaches to overcome a partial limitation.

• Information and Communications Magazine
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• v.30 no.1
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• pp.33-38
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• 2012

스마트시대는 전 산업분야, 더 나아가 사회 전반에 IT가 활용, 재생산되어 인류 삶의 질을 보다 향상시키는 시대로 정의할 수 있다. 이를 위한 기술(스마트 기술)의 혁신은 타산업과의 융합은 물론, IT산업발전을 위한 총체적(holistic)접근이 요구되며, 단기적이고 금전적인 성과를 지향하기 보다는 비금전적(non-financial)이며, 사회성과 등 미래 성과를 지향하는 특징을 가지고 있다. 본고에서는 스마트시대 기술 진화방향을 생태계(CPND) 활성화 차원에서 조망하고, 혁신을 위한 R&D 전략을 기술도메인의 발굴 및 선택을 위한 기획전략, 효과적 성과창출을 위한 수행전략 그리고 효율성 제고를 위한 성과 활용전략으로 구분하여 제시하였다. 즉, 미래 스마트시대에 부합하는 기술혁신을 견인하기 위해서는 물리적 공간/아날로그적 형식에서 가상(Virtual) 공간/디지털 형식으로, 폐쇄적 플랫폼에서 개방형 플랫폼으로, 음성/데이터중심에서 지능화된 디바이스로, 대인통신에서 사물통신으로 진화하는 메가트렌드를 고려하여, 지향점에 따른 차별적 기획체계 구축, 다양한 가치생성방식의 활용, 성과극대화형 R&D 수행방식 수립, 그리고 특허경영과 같은 활용체계 구축 등의 R&D 전략이 필요함을 제시하였다.

• Journal of the Korean Society for Library and Information Science
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• v.48 no.2
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• pp.159-175
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• 2014

The purpose of this study is to analyze the relationships between the online information activities of older adults and their life satisfaction. Online information activities were categorized into 'information use ability', 'information use time', and 'information device use ability', and the life satisfaction included such as 'feeling of happiness', 'physical condition', and 'economical condition'. A total of valid 341 responses were examined and analyzed to test the research model using SPSS 19 and Amos. It found that the online information use ability and the online information use time had a positive effect to the information device use ability; it showed that the higher the information device use ability the higher their life satisfaction. However, the online information use ability and the online information use time had no effect to the older adults' life satisfaction in this study.

• Journal of the Korea Society of Computer and Information
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• v.17 no.4
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• pp.19-29
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• 2012

According to the result of PISA and TIMSS, it was reported that interest for Math and Science was far lower compared to high achievement of Them. The purpose of this study is to investigate effects of robot based STEAM education on elementary school students' Math learning behavior and Science motivation. Robot based STEAM education integrated science, mathematics and art with a theme of 'Energy' was practiced for test group and For control group, those three subjects were taught separately in order to achieve this purpose. Curriculum of fourth grade second semester's science, mathematics and art was analysed to teach a robot based STEAM class and STEAM class Model with the theme 'Energy was designed and applied to elementary students. In science class, heat transfer experiment was conducted with robots and the result was related to drawing polygonal lines in mathematics. In art class, robot components were used to describe the heat energy in shapes and colors. The research shows that students' Math learning behavior and Science motivation were improved more with robot based STEAM education than with traditional lessons(p<.05). It proves that robot based STEAM class can be effective for improving interest in elementary Math and Science.

• Convergence Security Journal
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• v.19 no.2
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• pp.113-121
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• 2019

With the development of the Internet and Information Communication Technology, there has been an increase in the amount of Open Source Intelligence(OSINT). OSINT can be highly effective, if well refined and utilized. Recently, it has been assumed that almost 95% of all information comes from public sources and the utilization of open sources has sharply increased. The ISVG and START programs, for example, collect information about open sources related to terrorism or crime, effectively used to detect terrorists and prevent crime. The open source information related to the cyber attacks is, however, quite different from that in terrorism (or crime) in that it is difficult to clearly identify the attacker, the purpose of attack, and the range of damage. In addition, the data itself of cyber attacks is relatively unstructured. So, a totally new approach is required to establish and utilize an OSINT database for cyber attacks, which is proposed in this paper.

• Journal of Industrial Convergence
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• v.21 no.9
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• pp.133-142
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• 2023

The use of digital information technology has become important in order to effectively respond to changes in production conditions in Korean agriculture, which are continuously worsening due to a decrease in the rural population, deepening aging, and climate change. Accordingly, this study analyzed the factors affecting farmers' adoption of information devices use and the effect of information devices use on agricultural product sales using the propensity score matching method. As a result of the analysis, it was found that low-age farmers, high-education farmers, and leading farmers are highly likely to adopt use of information devices. For farms with similar characteristics such as age, management size, and farming type, it has been confirmed that farms that have adopted information devices use in agricultural management have higher sales of agricultural products. Therefore, increasing farmers' access to information and the ability to use information devices provides implications that farm income can be improved. The government's informatization support project in the agricultural and rural sectors is important so that farmers can have the ability to distribute informatization devices and utilize agricultural information, and active investment should also be made in information infrastructure.

• Journal of the Korea Convergence Society
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• v.8 no.12
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• pp.257-264
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• 2017

In the modern age where various knowledge and experiences are shared through communication, it is necessary to have an integrated educational experience that allows developing creative problem-solving ability that is organically related, not a segmented education experience and it is essential to have experience in history education that derives the present from the past and nourishes the logic. Therefore, this study has developed an integrated program for children using folktales of . A total of 4 stories were selected through consultation of expert group and 12 classes were planned. It is expected that the creativity and logic of children will be increased through the program and it will have a meaning that it provides the basis for the study of the integration program using the Samguk Yusa, However, since this study is on a program development, it has limitations that the effect on development is not verified. Once the effectiveness of the program in subsequent studies is verified, it can be a highly utilized program in the field.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.18 no.1
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• pp.83-90
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• 2019

LED lighting is spreading on the strength of LED lighting, and various government policies are being implemented. VLC research which is a wireless communication technology using lighting has been actively conducted, and it has been proven through many studies that a general LED light source such as a high-speed data transmitter can be used. But from now on, one of the main problems is the noise from side lights, which can be compared to the noise of radio broadcasts. So in this paper, we proposed a noise canceling model to remove the interference of ambient light by using an optical filter for a detachable VLC channel. In order to verify the proposed model, various high brightness RGB LED modules were used for comparative analysis. In addition, the applicability was verified through experiments using High Luminance LED lighting which is applied in real life.

• Review of KIISC
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• v.20 no.3
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• pp.90-96
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• 2010

최근 의료기술 발전에 따라 질병의 예방 및 관리에 대한 소비자의 요구사항이 증가하고 있다. 이러한 요구사항에 부응하기 위해 IT와 의료분야의 융합으로 u-헬스케어 서비스가 실현되고 있다. 언제 어디서나 의료서비스를 제공받을 수 있는 u-헬스케어 서비스의 활성화는 의료데이터의 공유 및 활용이 전제조건이 될 것이다. 그러나 의료데이터의 공유 및 활용으로 인해 의료정보에 포함된 개인정보, 병력정보 등의 프라이버시가 침해될 우려가 있다. 본 논문에서는 의료데이터의 공유 및 활용상에서 발생하는 보안 요구사항을 검토한다.