• Journal of Korea Game Society
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• v.9 no.1
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• pp.135-142
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• 2009

Nowadays, many interface devices or training systems for the disabled are being developed and introduced with the recent development in IT technology but only few training systems for the developmental disabled are introduced. In this paper, we present a situation training system based on the argumented reality in order to help the developmental disabled to increase their management level of capability to the certain situation. Our system is specifically based on the food serving in the restaurant. This maker-based system provides trainees to safely experience various different situations and take the training session under any circumstances. The trainees for this program are able to look around with the HMD on, take the training easily by following the voice instruction, and try situational scenario.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.6
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• pp.113-119
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• 2017

The Rich Communication Service(RCS) is a next generation mobile messaging service. Since it has been developed and managed by a wireless service provider, 3rd party application developers cannot utilize the RCS features in their apps. A few studies have been proposed to solve this problem, even though they were not viable level of deployment. This paper presents a Web-based Rich Communication Service Software Framework(WebRSF) to help the 3rd party application developers adopt RCS features easily. WebRSF converts complicated RCS protocols to simple web-based protocols for providing the RCS 1-to-1 chat service to the 3rd parties. Communication protocols between WebRSF and its clients are defined in this paper. Also, a network configuration diagram and a message flow diagram are defined. Finally, performance evaluation between the WebRSF client and the RCS client are performed to simulate the load on clients' devices. It shows that the WebRSF client has 17% less loads than the RCS client while initiating sessions, and has 25% more loads after initiating sessions.

• 한국정보교육학회:학술대회논문집
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• 2011.01a
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• pp.159-166
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• 2011

This study was performed to compare and to analyze the contents validity on the unit related in computer of practical arts education text of the 7th national curriculum, to look deep into the problem on contents and to propose the strategy of reformation, to suggest in strategies for development of subject for the 8th national curriculum in our society on current IT-based. And this thesis suggests the revised operating guide of ICT education according to 2009 curriculum and new IT-environment.

• Journal of The Korean Association of Information Education
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• v.21 no.2
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• pp.259-266
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• 2017

The goal of this study is to introduce the SW Edu-thon program designed to strengthen pre-service teachers' software teaching competencies and to report its outcomes. In order to achieve the goal, we have conducted a survey for twenty-two teams of two pre-service teachers who have participated in the regional pre-contest and selected for the best lesson plans. The survey consists of several sections including the level of SW competencies, learning motivations, educational outcomes, satisfaction toward the lecturers, mentors, educational programs, and management and operations. In addition, we have analyzed the mentors' progression reports written by the participating in-service teachers who have helped the pre-service teachers to develop and implement their SW lesson plans. The results of this study provide with the outcomes of the program and the future directions for operating the SW Edu-thon program.

• International Commerce and Information Review
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• v.16 no.3
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• pp.97-119
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• 2014

This study measures the efficiency of intellectual capital of Korea's banks, financial investment companies, and insurance companies using the Value Added Intellectual Coefficient (VAICTM) model, which was developed by A. Pulic and investigates into the relationship of each of VAIC's elements - efficiency of human, structural, and material capital -with business performance of the institution. we found, first, average VAIC and human capital efficiency(HCE) of Korean financial institutions during 2001 - 2012 were highest among banks, followed by insurance companies and securities firm. Secondly, in general, banks in advanced countries tend to have higher HCE and VAIC compared with the banks of developing countries. Thirdly, Korean financial institutions' HCE and VAIC are lower than those of Australia and even Taiwan and Thailand and have been on the decrease in recent years. This suggests that Korean financial institutions should enhance VAIC and HCE to build-up the international competitiveness.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.6
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• pp.87-93
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• 2019

We discuss the design of a radiometer using a millimeterwave(Ka-band) seeker. We applied a total power radiometer, thus the radiometer is composed of a IF-drive amp, band-pass filter, detector and an Op-amp additionally. As a radiometer measure a radiated signal of an object which is noise-like, a radiometer is easily affected by the variance of system temperature. To mitigate an adverse effect, we propose a compensation method in a radiometer without brightmess temperature compensation circuits. Through some experiments such like a distinction a target and the background, we have verified that the designed radiometer system has distingushed a car from the ground completely.

• Korean journal of communication and information
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• v.39
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• pp.473-505
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• 2007

Advertising is regarded as one of media's most proficient instruments of reflecting changing society. It represents the channel through which globalization and consumption culture have spread into everyday life. This study explores the significance and representations of multi-culturalism in contemporary television commercials. For the purpose, the social and historical meanings of the term 'multi-culturalism', generated inside and outside Korea, are discussed. A series of text analysis are followed, focusing on the representation of non-Korean models in terms of ethnicity and race. The result shows that the advertising is the instrument utilized in creating the relationship between multi-culturalism and racialism, which is called 'strategic multi-culturalism'. This strategy commonly happens in today's commercial advertising such as information/telecommunication, real estate/branded apartment complex, and bank/finance market. Despite the increasing number of multi-cultural commercials in the past decade, multi-culturalism in Korean society has not yet fully articulated.

• Journal of Navigation and Port Research
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• v.38 no.2
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• pp.121-126
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• 2014

This paper suggests a new algorithm to provide low-cost GPS modules with DGPS service, which corrects the error vector in the already-calculated position by projecting range corrections to position domain using the observation matrix calculated from the satellite elevation and azimuth angle in the NMEA GPGSV data. The algorithm reduced the horizontal and vertical RMS error of U-blox LEA-5H module from 1.8m/5.8m to 1.0m/1.4m during the daytime. The algorithm has advantage in improving the performance of low-cost module to that of DGPS receiver by a software update without any correction in hardware, therefore it is expected to contribute to the vitalization of the future high-precision position service infrastructure by reducing the costumer cost and vender risk.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.1
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• pp.144-150
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• 2017

Recently, deep learning is used for intelligent processing and accuracy improvement of data. It is formed calculation model composed of multi data processing layer that train the data representation through an abstraction of the various levels. A category of deep learning, convolution neural network is utilized in various research fields, which are human pose estimation, face recognition, image classification, speech recognition. When using the deep layer and lots of class, CNN that show a good performance on image classification obtain higher classification rate but occur the overfitting problem, when using a few data. So, we design the training network based on convolution neural network and trained our image data set for object classification in few class problem. The experiment show the higher classification rate of 7.06% in average than the previous networks designed to classify the object in 1000 class problem.

• The Journal of Korean Institute for Practical Engineering Education
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• v.2 no.1
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• pp.89-94
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• 2010

This paper proposes an educational robot game framework for novice students in k-12 to learn concepts of programming through interesting experiences. It is designed to be able to enjoy robot games without technical knowledge of robotics and programming. For this, in the proposed robot game framework, educational robots based on line-tracer are used and the programming APls that can be used for various educational programming languages are offered. And the proposed robot game framework also offers a game board to create several games with easy operations. Additionally, through experiments, it shows that novice students are able to create different games that have several game solutions for various programming using this robot game framework.