• Proceedings of the Korea Society of Design Studies Conference
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• 2003.05a
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• pp.142-143
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• 2003

• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.447-449
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• 2012

This paper present an intelligent microcontroller based chess playing robot which can play a board game against opponent and calculate its moves in a non-idealized environment. In this work, for the sake of simplicity task is accomplished by using Cartesian coordinate system. Chess playing system has been designed in such a way that it provides an interface between user and robot to control chess movements using RS232. Various algorithms are implemented for interfacing hardware in C++ language. Our main goal is to design a cost effective and highly accurate robot system that consumes minimal power to complete its task.

• Journal of the Korean Society of Costume
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• v.57 no.2 s.111
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• pp.86-99
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• 2007

In this study, the concept of play as an entertainment is redefined and applicable method of fashion design as a play are suggested by analyzing the feature of doll's costume design based on the play pattern. In literary study, the role of playing doll Is described and has been examined by the analysis of scholars' opinions. In positive study, the pattern and costume design of sample costume dolls are analyzed using 624 samples of the representative images collected from the literatures and real figures, and they are classified as collection dolls or fashion dolls in order to analyze the feature of fashion design in playing dolls. As a result of the analysis of doll's costumes based on its use, the costumers are divided into a real world costume which is similar to what human wear in daily life and a virtual costume which is used in the movie or play and the costumes only worn by the dolls. The examination of the type of costume worn by dolls, dress is principally dominant costume in collection doll, whereas in fashion doll, dress is still mainly worn but shirt blouse & pants, shirt blouse k skirt, jacket, coat, bathing suit. etc. are shown dispersedly as well. In the costume silhouette of dolls, collection doll uses mostly A line silhouette meanwhile fit and flare is mostly used in the fashion doll but other silhouettes are also relatively shown a lot. In the means of the color of the costume worn by dolls, collection doll is more similar to those in actual fashion design. On the contrary, the color of the costume that fashion doll is put on is more free and more various because the trendy rotors such as green, yellow, purple, etc are used.

• Proceedings of the Korea Society of Costume Conference
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• 2004.10a
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• pp.68-69
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• 2004

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.6
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• pp.1226-1233
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• 2005

The purpose of this paper is to overview the recently changed environments of developing a computer game software and propose an appropriate developemnt methodology to these environments. For the speed of playing 3-dimensional games in window-based environments of personal computer, we investigated DirectX as a game development library and suggested a guideline for developing 3-dimensional computer games which is compatible with various hardware platforms and keep up a fitting speed of game-playing.

• Research in Mathematical Education
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• v.15 no.1
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• pp.1-14
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• 2011

Logo has influenced many researchers and learners for the past decades as a 20 turtle geometry environment in the perspective of constructionism. Logo uses the metaphor of 'playing turtle' that is intrinsic, local and procedural. We, then, design an environment in which the metaphor of 'playing turtle' is applied to construct 3D objects, and we figure out ways to represent 3D objects in terms action symbols and 3D building blocks. For this purpose, design three kinds of representation systems, and asked students make various 3D artifacts using various representation systems. We briefly introduce the results of our investigation into students' cognitive burden when they use those representation systems, and discuss the future application measures and the design principles of Logo-based 3D microworld.

• Journal of the Korea Society of Computer and Information
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• v.14 no.2
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• pp.59-68
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• 2009

This paper aims to explore the factors of learner's flow and to develop and validate a scale to measure the flow in Massive Multiplayer Online Role Playing Game(MMORPG) for education. First of all, potential factors were drawn through literature review. The potential stage comprises 6 factors(learner's psychological characteristics, learner's skill, importance of game, environment for learner, instructional design, and instructional environment) and 16 subfactors. With total 48 items developed. a survey was carried out among 293 elementary learners who had been participating in a commercial MMORPG for English skills to measure their flow in the MMORPG by utilizing the potential scale. Using the responses collected from 288 respondents, exploratory factor analysis, reliability analysis, and confirmatory factor analysis were performed. The expository factor analysis showed that items within each sub-factors could be bound into one factor. That is, the variables evaluating learner's flow were divided into six factors(learner's psychological characteristics, learner's skill, importance of game, environment for learner, instructional design, and instructional environment). And these factors were interpreted consisting of 16 sub-ones. Reliability estimates indicated that the evaluation tool had good internal consistency. The confirmatory factor analysis did confirm the model suggested by the expository factor analysis. Over fit measures(CFI, NFI, NNFI) showed the good suitability of the model. Findings of this study confirmed the validity and reliability of the scale to measure learner's flow in MMORPG.

• Human Ecology Research
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• v.51 no.6
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• pp.613-622
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• 2013

The purpose of this study was to investigate infants' development, parenting characteristics, and the infants' daily routines by monthly family income, and examine variables related to infants' development. The 2010 data of the panel study on Koreans were used. The sample for this analysis was 1,802 children aged 21-23 months and their parents. The data were analyzed with ANOVA, Pearson's correlation analysis, and multiple regression analysis with SPSS version 18.0. The results were as follows: First, the development of infants differed by the family income. Infants' communication and problem solving skills in families with an income at the 25th percentile or below was lower than those above the 25th percentile. Second, parenting characteristics differed by family income. In the lower income group, the mother's parenting stress was highest, but the father's parenting time on weekends was lowest. Third, the most frequent activity of infants differed by family income. Playing with friends or caregivers was lowest, but watching TV and videos was highest in the lower income family group. Fourth, there was a relation among infants' development (communication and fine motor skills) and parenting characteristics (mother's parenting style, stress, and father's parenting time on weekends), and the infants' daily routines (playing with friends or caregivers). Fine motor development was affected by playing with a caregiver.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.3
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• pp.305-310
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• 2019

Survival horror games aim to seek cathartic psychological escapism from the framed fear or hostile environment. However, if the goal of the game playing is only "survival" against hostile environment, the motivation of such environment adaptive games may not be based on the framed fear. We may call such games as "environment adaptive survival games". In this paper, we analyze the contents of six such survival games that have large user groups in Steam platform based on the pilot survey. We extract 13 almost common fun elements that induce the fun of such games. An online user survey was conducted through multiple survival game cafe to investigate who play such games. There was no gender differences in playing time but females prefer constructing tools as a fun element and play puzzle and simulation games more than males. We found that survival games could be welcomed by female users under 30 years old if 'horror' element was minimized.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.1
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• pp.93-107
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• 2016

Game bot playing is one of the main risks in Massively Multi-Online Role Playing Games(MMORPG) because it damages overall game playing environment, especially the balance of the in-game economy. There have been many studies to detect game bot. However, the previous detection models require continuous maintenance efforts to train and learn the game bots' patterns whenever the game contents change. In this work, we have proposed a machine learning technique using the self-similarity property that is an intrinsic attribute in game bots and automated maintenance system. We have tested our method and implemented a system to major three commercial games in South Korea. As a result, our proposed system can detect and classify game bots with high accuracy.