• Korean Journal of Applied Biomechanics
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• v.13 no.3
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• pp.265-276
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• 2003

The objective of this research is to provide basic data for improving athletic performances, suggesting methods that can be utilized at games and coaching movements in the snatch, by analyzing the level of contribution of muscles to the movements of the snatch lift through three-dimensional imaging and EMG analysis between skilled and unskilled lifters. To this end, three high school students (the skilled group), three middle school student (the unskilled group) were selected; two digital video cameras and electromyography were used. The muscles measured by an EMG include gastrocnemius muscle, biceps femoris muscle, erector spinae, latissimus dorsi muscle, trapezius muscle, and brachioradialis. Based on the Ariel Performance Analysis System (APAS) program, the results of the analysis are summarized as follows. 1. In performing snatch pulls, the skilled lifters were found to simultaneously move the weight centers of the body and the barbell close to vertical, close to the shoulders in the pulling portion; in snatching and grabbing the barbell from a sited position, it was observed that the shorter the time for adjusting to change in the height of the barbell by using rotational inertia, the better it is to perform the movements. 2. The skilled lifters were observed to perform stable and efficient movements in grabbing the bar in a sited position, by moving the barbell and weight center of the body close to vertical and moving the shoulder joint under the bar fast. 3. The results of the EMG analysis of the entire movements from the snatching portion to the portion of grabbing the bar in a sited position show that when the skilled lifters lifted the barbell vertically during the pulling portion, their shoulder joints were extended to put more weight on biceps femoris muscle and brachioradialis; and in snatching and grabbing the bar from a sited position, it was found desirable to increase the myoelectrical activity of erector spinae in order to achieve a balance in the movements of the hip joint between font and rear, as the weight centers of the body and the barbell move higher. On the other hand, the unskilled lifters were found that in response to change in posture, they increase their muscular strength inefficiently in performing the movements throughout the entire lifting process.

• The Journal of the Korea institute of electronic communication sciences
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• v.2 no.1
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• pp.25-33
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• 2007

Crowd behaviors on cyber underwater environment are often produced in entertainment contents, such as films and games. It is easy for us to come in contact with the scenes appearing a lot of characters as digital films and animation works are increased gradually, owing to developing of computer graphics. Though the processing a scene of crowd and the behavior system of crowd, related to the processing techniques of crowd behavior in cyber space, have been implemented so far, the research for developing the natural crowd behavior simulator can not be still satisfying. In this paper, we designed a realistic and efficient Fish Schooling Behavior Simulator for the contents production of cyber underwater environment, which showed each type of fish behavior in cyber underwater smartly, and which generated the animating the behavior automatically, reducing the time and cost.

• Korean Institute of Interior Design Journal
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• v.15 no.5 s.58
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• pp.306-313
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• 2006

Digital simulation which was introduced to the architectural field due to the rapid growth of computer graphics, gave birth to a new type of contents called 'virtual reality', led by the interaction with the users and real time processing. The public attention is drawn to the virtual reality's potential as a next generational space simulation it, having the unique characteristics of 'simulation', 'interactivity', 'tole-presence', and 'immersion', is capable of taking a virtual tour of a space with a size equivalent to that of a real space, as well as proceeding with the design progress. Nonetheless, many problems impeding CPU's real time processing of an excessively loaded architectural model data have been pinpointed over the time. Yet such GPU based game engines as 'DirectX' and 'OpenGL', developed to deal with these impediments, have not been easily applied to the architectural simulation in the design process, due to the high license cost and the specific technical requirements for the system. The virtual reality has been developed and distributed centering around the gaming field, and game developers recently show a greater tendency to include level editors in the package for the expandability purpose. Thus, we plan to propose architecture simulation which utilizes level editors in this study. In addition, the compatibility of the game engine based level editors of Quake and Unreal which form the standards for the open source FPS games, based on VRML, the standard format for the virtual reality, was compared and analyzed. Taking the example of Villa Savoye of Le Corbusier, its application possibility as an architecture simulation was assessed, by measuring the extent to which the performance of such characteristic features of the virtual reality as interactivity, immersion, and tele-presence, was improved.

• The Journal of the Korea Contents Association
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• v.6 no.4
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• pp.109-116
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• 2006

This study is to present 'game-storytelling' is based on 'hero-storytelling' and to transform the basic pattern which is extracted from 'heroic-storytelling' so that it can be applied to 'game-storytelling'. 'Game-storytelling' has the similar foundation as 'heroic storytelling'. It begins with an extraordinary birth, introduction to the strange world, exploration, adventure, birth of a hero and finally return of a hero. The most distinctive feature of stages is the conquest of outer and internal limitation. Each stage goes through the process of compensation and outer, internal acknowledgements. These processes are the structural core of game storytelling. Generally, stage 1 to 5 includes background stories, stage 6 to 9 are the progress of game, and stage 10 to 12 are the transformation of game with rules and genre.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.517-520
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• 2006

Crowd behavioral scenes in virtual underwater world are presented in many entertainments such as films and games. According to the increase of digital films and animations caused by the development of computer graphics, it is easy for us to meet with the cyber characters in those scenes. Characters which appear in computer animation put life into virtual world. The more characters we have in this virtual space, the deeper we are immersed in the space. There were many researches which processed the crowd scene and implemented the crowd behavior system in Korea. They were related to developing VR contents which were available to feel actually in the construction of the virtual environment. But they are far from reaching the step to put to practical use in developing the crowd behavior modeler. Therefore, we suggestion the fish schooling behavior modeler that provides interaction and action behavior in 3D object to present vividly and effectively in underwater world.

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.205-214
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• 2018

As the paradigm of the Fourth Industrial Revolution is expanding, VR devices and their contents industry are drawing more and more attention as the digital devices of the next generation. Of the realms of VR contents, $360^{\circ}$ 3D videos are receiving the most attention in the field of media, and they are being utilized by Google as educational contents. As such, this research analyzes actual condition of use and motivation of using corresponding contents through survey of $360^{\circ}$ 3D video users. Results show that the most utilized platform is Youtube, and the genres which the respondents have used or are willing to use turned out to be Games and Movies.

• Journal of The Korean Association of Information Education
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• v.21 no.6
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• pp.607-618
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• 2017

Recently, there is a growing interest in learning to use games as a teaching method for digital native learners. In this study, we conducted a path analysis between bodily-kinesthetic intelligence, linguistic intelligence, flow, learning outcomes(academic achievement, persistence intention) in motion-capture game-based learning(the used game developed for elementary school history class). As a result, bodily-kinesthetic intelligence directly influenced flow and indirectly influenced learning outcomes. Linguistic intelligence did not have direct influence on flow and indirect effects on learning outcomes. Through this result, we expected that the motion-capture game-based learning facilitate learning motivation and performance of learners for higher bodily-kinesthetic intelligence.

• Journal of Korea Game Society
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• v.15 no.2
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• pp.33-42
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• 2015

This study analyzes location based game focused on the figurative characteristics of mobility. The purpose of this analysis is to extend the understandings of game mobility from technical side toward rhetorical territory. Christian Metz's film theory is appropriate for analysis of the game which is visual and combinational text. According as research findings, structuralize 5-layered spatial maps. And this kind of multi-layering structure generates figurative operations. Adaptive mobility by metaphor, it reflects player's real world movement into the virtual space. Metonymy brings given mobility, it reflects character's movement through all of the virtual maps.

• Information Systems Review
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• v.9 no.1
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• pp.23-44
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• 2007

The focus of this research is to investigate which factors are important for the adoption of mobile service and the moderating effects of service types such as hedonic and utilitarian service between those factors and the adoption of mobile service. The empirical results based on the data gathered from 169 users of mobile games and finance service showed that perceived usefulness, perceived ease of use and trust had significant impacts on the adoption of mobile service whereas social influence did not. Also the moderating effect of service type was found that perceived usefulness and trust have more impacts on adoption of mobile service in mobile finance rather than mobile game. Base on these empirical results, this study suggests the managerial implications for mobile service marketing.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.9
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• pp.82-88
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• 2016

The proposed new UCI syntax is compatible with the existing identifier and defines fixed length in such cases as printable ID, bar code and QR code which may entail better usage of identifier itself. For the compatibility, the identifiable metadata "key" is used for the existing UCI identifier and "UCI" element of metadata is defined for the new UCI identifier. The new UCI identifier plays roles of the resolution service and representation, and the old UCI identifier plays a role of internal DB management. Also, the object code has two types, meaningless and meaningful. The meaningful object code type can be used according the content classification standards in various field as comics, games, advertisement etc. The standardization activities can be supported by the root agency of UCI.