• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.307-310
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• 2014

본 논문에서는 여러 가지 소프트웨어 테스트 기법 중 "체크리스트" 기법을 이용하여 2014년 청강문화산업대학 게임전공 졸업작품 게임 13점을 대상으로 테스트를 진행하고 그에 따른 결과에 대해 의견을 제시한다. "체크리스트"란 테스트하거나 평가해야 할 내용과 경험을 나열해 놓은 것을 의미하며, 체계적으로 도출되기 보다는 테스트 경험과 노하우를 정리하고 목록화하여 테스팅에서 해당 내용을 누락 없이 검증하는 것을 목적으로 작성하는 문서다. 테스트의 진행은 개발팀의 기획서 분석에서 시작되며, 기획서에서 기반한 게임의 실제 구현비율과 동작 가능한 비율을 중점으로 평가하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.289-292
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• 2014

게임에서 AI(Artificial Intelligence)는 게임의 재미요소와 가장 밀접한 부분이며, 대부분의 게임에 포함되어 있다. 그러나 단순한 AI패턴은 게임플레이에 지속성을 저하시키며 게임의 재미요소 하락시키는 원인이 되기도 한다. 본 논문에서는 이러한 문제점을 극복하기 위해, 2D 횡 스크롤 액션 게임으로 "아트록스"를 개발하여 게임의 흥미를 높일 수 있는 AI패턴을 연구하였다.

• The Journal of Korean Association of Computer Education
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• v.18 no.2
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• pp.59-70
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• 2015

This paper aims at developing a valid evaluation tool which has reliability to measure the tendency of cyber bullying that is on the increase recently. After setting up the concept of cyber bullying and exploring its factors by reference to advanced research, we developed the draft tool through modifying by the expert group. By conducting several surveys using this evaluation tool, we have verified the reliability and validity of our tool. And we also have developed an evaluation tool to measure its tendency. As a result, the complementary evaluation tool of cyber-bullying tendency was proposed with more advanced and accurate test.

• Management & Information Systems Review
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• v.33 no.4
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• pp.119-135
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• 2014

This study examines influences of personality and grateful disposition on psychological well-being in service encounter. The results follower like these. First, extroversion, conscientiousness, and grateful disposition have positive effects on psychological well-being, and neuroticism has a negative effect. Second, psychological well-being has a positive effect on prosocial behavior. Lastly, we compared the effects personality and grateful disposition on psychological well-being, and neuroticism has the most effects on psychological well-being and followed by grateful disposition and extroversion. It means grateful disposition can enhances psychological well-being as such personality.

• Korean Journal of Food Science and Technology
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• v.24 no.2
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• pp.183-186
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• 1992

Jindo Hongju is a traditional liquor in Korea. The characteristic of Hongju are its unique flavour and red color which is extracted from the root of gromwell (Lithospermum erythrorhizon). It is due to these color and flavour that Hongju attracts visual charm. However, the commercial value of Hongju is reduced because of the discoloration of red pigment during storage. Therefore, factors which cause the discoloration of red pigment and methods to prevent discoloration were investigated. The results obtained from this study are summarized as follows. The factors that cause the discoloration were visible light, temperature (beyond $40^{\circ}C$), pH (above 10) and inorganic ion ($Cu^{2-}$). Among all the additives added, Cystein (100 ppm) was the most effective inhibitor of pigment discoloration.

• Journal of the Korean Society of Food Culture
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• v.9 no.4
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• pp.335-340
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• 1994

The objective of this study was to determine effects of soybean oil(SO), cottonseed oil(CO) and ricebran oil(RO) on stability and flavor of yackwa. This study consisted of yackwa fried in 3 differnet oils, then stored for 0, 3, 6 weeks in normal wrap at room temp. or vaccum package at $4^{\circ}C$. The moisture, oil contents, Hunter color values(L, 'a' and 'b'), % free fatty acid(FFA), thiobarbituric acid(TBA) value and sensory scores for color, flavor and acceptability were analyzed. The foam height of the oil after frying was also determined. Yackwa fried in RO was more red('a'=11.43) than yackwa fried in SO(10.64) or CO(10.51). TBA value of yackwa showed no difference among frying oils. Yackwa fried in SO showed better acceptability than those fried in CO. Yackwa fried in RO showed similar acceptability to yackwa fried in SO. The % FFA and TBA value of yackwa averaged across oil and package showed increasing tendency during 6 weeks storage.

• Transactions of the Korean hydrogen and new energy society
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• v.26 no.5
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• pp.463-468
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• 2015

This study describes the effect of upstream curved pipe on internal flow characteristics ball valve. Continuity and three-dimensional Reynolds-averaged Navier-Stokes equation have been used as governing equations for the numerical analysis. The upstream curved pipe - ball valve model was assumed that it is used for Alaska pipeline project which was planned to provide reliable transportation of natural gas from ANS to Alaska-Yukon border. Therefore the characteristics of pipe and operating condition of pipeline were from report of Alaska pipeline project. The three curvature and three location of upstream curved pipe were analyzed. The results shows that there are typical flow patterns at ball valve and the upstream curved pipe makes some differences to the internal flow of ball valve.

• Transactions of the Korean hydrogen and new energy society
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• v.26 no.5
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• pp.438-444
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• 2015

This study describes the effect of T branch shape on internal flow characteristics inside itself. Continuity and three-dimensional Reynolds-averaged Navier-Stokes equation have been used as governing equations for the numerical analysis. The T branch was modeled assuming that it is used for Alaska pipeline project which was planned to provide reliable transportation of natural gas from ANS to Alaska-Yukon border. Therefore the characteristics of T branch and operating condition of pipeline were from report of Alaska pipeline project. The nine T branch shapes were analyzed and the mass flow rate ratio between mainline and branch was assumed to be 0.95 : 0.05, 0.9 : 0.1, 0.85 : 0.15. The results shows that there are typical flow patterns in T branch and the shape of T branch makes some differences to the internal flow of branch rather than mainline.

• Journal of the Korean Society of Food Science and Nutrition
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• v.24 no.4
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• pp.537-541
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• 1995

This study was designed to investigate the effects of methionine(Met) on the activities of heart lipid peroxidation related enzymes in ethanol administrated rats. Male Sprague-Dawley rats were fed on diets containing one of the three levels of Met(0%, 0.3%, 0.9% of kg diet) and ethanol(2.5g/kg of body weight) was administrated as 25v/v% ethanol to ethanol treated groups orally. The rats were sacrificed after 5 and 10 weeks of feeding. Xanthine oxidase(XO) and catalase activities increased with ethanol administration and those activities were higher n Met excessive and deficiency group than those of Met normal group at 5 and 10 weeks dieting. Superoxide dismutase(SOD) activity in heart decreased significantly in Met deficiency and Met excessive group as compared to that of control. Glutathione peroxidase(GSH-Px) activity in heart significantly decreased in Met deficiency group as compared to that of Met excessive and normal group. Glutathione S-transferase(GST) activity of heart tissue significantly increased by ethanol administration. Glutathione(GSH) content in heart decreased with ethanol administration and shwoed no significant differences with Met levels. Ethanol administration increased the content of lipid peroxide(LPO).

• 한국정보통신설비학회:학술대회논문집
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• 2005.08a
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• pp.120-123
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• 2005

본 논문에서는 무선 홈 네트워크에 사용될 홈 내 무선 LAN(Local Area Network)용 안테나에 대해 연구하였다. 홈 내의 천장 부근에 안테나를 설치할 경우, 전파의 외부 노출을 피하고 최소한의 전력이 각 홈 별로 공급되어야하며, 각 홈 내에서의 전파를 홈 내 위치마다 균등하게 분배되어야 한다. 이를 위하여 모노폴 안테나와 다이폴 안테나 및 마이크로스트립 패치 안테나를 무선랜 주파수 2.4GHz를 중심으로 설계 제작하여 그 특성들을 고찰하였다. 그 결과 브로드사이드 방향으로 최대 또는 null 지점 발생, 좁은 빔폭 등 무선랜용 안테나로 사용하기 적합하지 않았다. 따라서, 구조적 변형 등을 통한 방사 빔의 개선 연구가 필요하다.