• Journal of Korea Game Society
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• v.16 no.1
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• pp.63-72
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• 2016

This study explores how players' characteristic factors affect on trolling behaviors. The data was collected through online survey from online communities of League of Legends(N=914, male=770, female=144, average of age=22.19, SD of age=4.78). Questionnaire includes age, level/tier, self-esteem, basic psychological needs, aggression, and trolling behaviors. Result shows that player characteristic factors which influence on players trolling behavior are 'age', 'physical aggression', 'verbal aggression'. Discussion suggests that the understanding of player's characteristics which influence on trolling behaviors has to precede the improvement of system structure in order to eradicate trolling behaviors.

• Journal of Korea Game Society
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• v.14 no.5
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• pp.147-160
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• 2014

The purpose of this study is to analyze figurations of genders in on-line game character in order to find out the ways of building gender identity of on-line game characters. This study selects characters in on-line game to analyze figurations of genders in game systems, images, discourses of game characters by using gender identity theory and examine the reproducing process of players. As the result, the gender identity of on-line game characters which was pre-given by game developers follows the same conventions and stereotypes in real world and also the players follow it in the same manner. On-line game has the potential of text involvement and modification of the game players, and it has immanent possibilities of becoming alternative space of endless improvement and evolvement.

• Journal of Life Science
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• v.30 no.5
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• pp.452-459
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• 2020

This study was conducted to investigate the total lignin content and anti-oxidant activity in extracts of defatted sesame seeds (DSS) fermented with 15 strains of Bacillus subtilis. The anti-oxidant activities of DSS were analyzed both before and after fermentation. The total lignan content of the DSS extracts fermented with BCH3678 (1,613.8 mg/l) and BCH3572 (1,599.5 mg/l) were relatively high compared to other strains. Anti-oxidant activity was determined according to phenolic compound and flavonoid content and DPPH radical scavenging rate; the highest total phenolic compound content was provided by the DSS with SRCM103716 at 2,803.3 mg GAE/g which returned total flavonoid content of 1,553.1 mg/g as strong correlation of its anti-oxidant activity. The DSS extract fermented by SRCM103716 at 37℃ for 24 hr showed the highest DPPH scavenging rate at 66.5%. The fermented DSS extracts, regardless of strain, demonstrated higher anti-oxidative activity than the unfermented control, and these results suggest that such extracts could be useful as a potential source of bioactive compounds.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.38 no.4
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• pp.443-449
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• 2014

To check the characteristics of nuclear fuels during an irradiation test, the nuclear fuel rod needs to be disassembled from the test rig located in the pool of the research reactor. Then, the disassembled fuel rod is delivered to the hot cell for intermediate examination. A fuel rod that passes the intermediate examination is delivered to the reactor pool to be reassembled into the test rig. The irradiation test is resumed with the reassembled test rig. Because nuclear fuel rods irradiated by neutrons are highly radioactive, all the disassembly and reassembly processes should be carried out in the pool of the research reactor to prevent operators being exposed to radiation. In particular, because a test rig is 5.4-m long and the reactor pool of HANARO is 6-m deep, special tools need to be developed for performing the disassembly and reassembly processes. In this study, a new assembly design of nuclear fuel rods for intermediate examination is introduced. Furthermore, tools for treating the irradiated fuel rod assembly are introduced, and their performance is verified by an out pile test.

• Journal of Broadcast Engineering
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• v.19 no.5
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• pp.569-577
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• 2014

From the year 2009, 3D Stereoscopic movies and TV have been spotlighted after the huge success of a movie called "AVATAR". Moreover, most of 3D movies & contents are created by mixing real-life shots & virtual animated pictures, such as "Robocop 3", "Transformer 4" as shown in 2014. However, the stereoscopic 3D video film shooting with a traditional stereoscopic rig camera system, takes much more time to set the rig system and adjust the system setting for proper film making which necessarily resulting in bigger cost. In fact, these problems have depreciated the success of Avatar as decreasing demand for 3D stereoscopic video shooting. In this paper, inherent problems of traditional stereoscopic rig camera system are analyzed, and as a solution for the problems, a novel implementations of single-lens optical stereoscopic 3D camera system is suggested. The new system can be implemented to a technology for separating two lights when even those lights passing through in the same optical axis. The system has advantages of adjusting the setting and taking video compared with traditional stereoscopic 3D rig systems. Furthermore, this system can acquire comfortable 3D stereoscopic video because of the good characteristics of geometrical errors. This paper will be discussed the single-lens stereoscopic 3D camera system using rolling shutters, it will be tested geometrical errors of this system. Lastly, other types of single lens stereoscopic 3D camera system are discussed to develop the promising future of this system.

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.10b
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• pp.314-315
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• 2005

• Korean Journal of Food Science and Technology
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• v.31 no.1
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• pp.260-262
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• 1999

Abies koreana Wilson is a proper tree to Korea. We tested the antimicrobial activity of the lignans isolated from it. The lignans inhibited the growth of Klebsiella pneumoniae and Vibrio parahaemolyticus at the concentration of $10^3\;ppm\;and\;10^4\;ppm$. Especially, the compound V showed higher inhibition activity to Vibrio parahaemolyticus by 1.7 times compared with the control. The compound III showed activity of 36% of the control to Klebsiella pneumoniae. The compounds II and VI had the high growth inhibition activity of 48, 66% respectively to Vibrio parahaemolyticus.

• Proceedings of the Korea Contents Association Conference
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• 2015.05a
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• pp.189-190
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• 2015

지금까지의 축구공의 형태는 오각형과 육각형의 거죽(panel)으로 구성되었고 거죽의 수는 32장으로 되어 있었다. 그러나 최근에는 14장 거죽으로 구성된 팀가이스트(2006년 월드컵 공인구)와 8장 거죽으로 구성된 자블라니(2010년 월드컵 공인구)가 등장하여 이전과는 다른 형태의 디자인을 볼 수 있게 되었다. 또한, 최근에는 32장 거죽으로 구성되었지만 그 형태가 종전의 디자인(오각형과 육각형의 조합)과는 다른 새로운 디자인으로 구성된 축구공(카푸사; 2013년 컨페더레이션스컵 공인구)이 등장하였으며, 지난 2014년 월드컵에서는 6장 거죽으로 구성된 브라주카가 공인구로 사용되었다. 이렇듯 최근 현대 축구공은 가죽 디자인을 중심으로 그 형태가 다양하게 변화하고 있다. 그러나 가죽 디자인의 변화에 따른 유체역학적 효과를 설명한 연구는 그리 많지 않다. 이에 본 연구에서는 위에 열거된 현대 월드컵 축구공과 함께 2015년 K리그 공인구를 비롯하여 국내 리그에서 사용되는 축구공(험멜, 낫소, 스타)을 대상으로 거죽 디자인의 형태와 그 공력특성을 풍동실험을 통해 비교하여 검토하였다. 그 결과, 서로 다른 거죽 디자인에 따라 축구공이 비행 중 공기로부터 받는 공기력이 변화하게 되며, 이로 인해 비행거리와 비행궤도가 변하는 것을 알 수 있었다.

• Journal of the Korean Data and Information Science Society
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• v.28 no.3
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• pp.625-633
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• 2017

Fielding Independent Pitching (FIP) is a statistic that measure pitcher performance by eliminating plate appearance outcomes that involve defensive play. FIP uses pitcher dependent outcomes such that walks, strikeouts, hit by pitches, and home runs allowed. The FIP equation derived from linear weights uses three coefficients 13, 3, -2 for evaluating Major League Baseball pitchers. However, these coefficients derived from run value of major league baseball are not suitable to Korea Baseball Organization pitchers due to baseball circumstances. In this study, new FIP called kFIP for Korea Baseball Organization pitchers are provided. We recalculate coefficients and get 14, 3, -1 for evaluating Korean Baseball pitchers. As a result, kFIP is statistically significantly better than FIP at predicting pitcher ERA in KBO League.

• Proceedings of the Korean Society of Crop Science Conference
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• 1998.04a
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• pp.71-72
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• 1998