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KMS 활용을 통한 지식창조 기제 연구 : 몰입의 관점을 중심으로
이지면(Ji-Myoun Lee),박기우,문준서(Joonseo Moon),김종현(Jong-Hyun Kim) 한국데이타베이스학회 2011 Journal of information technology applications & m Vol.18 No.1
For decades, thousands of corporation introduced knowledge management systems to respond knowledge-based society. However, it seems that the systems merely focusing on knowledge accumulation and its sharing have been bounded by many restrictions in terms of new knowledge creation based on the life cycle of knowledge management systems. Moreover, recently, a variety of knowledge management activities regarding organization, systems, and process is emphasized as a strategic asset for a corporation to create core knowledge. Therefore, this study adopted the Csikszentmihalyi's flow theory to investigate the factors affecting knowledge creation and the success factors of knowledge management systems in virtual space. Prior studies argued that flow experience should be a prerequisite for creative knowledge creation. In that vein, this research revealed the causal relationships for flow experience between the determinants of clear goal, immediate feedback, congruence of challenge and skill. Additionally, it empirically examined how flow experience affected the exploratory behavior of knowledge creation.
Cytotoxic Activity of the Extracts from Curcuma zedoaria
Kim, Myoun-Gae,Kim, Jung-Sun,Hong, Jon-Ki,Ji, Ming-Jie,Lee, Yong-Kyu Korean Society of ToxicologyKorea Environmental Mu 2003 Toxicological Research Vol.19 No.4
The effect of the hexane extract of Curcuma zedoaria roots and its solvent fractions were investigated on the proliferation of SiHa, SNU-1 and HepG2 cell lines. Among those fractions, final fraction H2-3-1 and H2-3-3 showed cytotoxic effect on SiHa and HepG2 cell lines. The hallmark of apoptosis, DNA fragmentation, also appeared in the final fractions H2-3-1 and H2-3-3 after 24h treatment in SiHa cell line. Furthermore, those fractions were shown to be able to induce cell death in $[^3H]$thymidine incorporation test. These two fractions, H2-3-1 and H2-3-3 were determined as (-)-$\alpha$-curcumene and $\beta$-tumerone respectively by NMR and mass spectrum. From these results, it is speculated that te hexane extract of Curcuma zedoaria is necessary for further studies as a potent inhibitor of the growth of cancer cells.
Woo, Yeun-Ji,Lee, Bo-Hyun,Yeun, Go-Heum,Kim, Hyun-Ju,Ko, Jang-Myoun,Won, Moo-Ho,Lee, Bong-Ho,Park, Jeong-Ho Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.suppl8
A series of hybrid molecules between (R)-lipoic acid (ALA) and the acetylated or methylated polyphenol compounds were synthesized and their in vitro cholinesterase [acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE)] inhibition activities were checked. The $IC_{50}$ values of all hybrid molecules for a BuChE inhibition were lower than those of the single parent compounds. Specifically, ALA-acetyl protected caffeic acid (11, ALA-AcCA) was shown as an effective inhibitor of BuChE ($IC_{50}=0.5{\pm}0.2\;{\mu}M$) and also had a great selectivity for BuChE over AChE (more than 800 fold). Inhibition kinetic study indicated that 11 is a mixed inhibition type. Its binding affinity ($K_i$) value to BuChE is $1.52{\pm}0.18\;{\mu}M$.
유현지(Ryu, Hyeon-Ji),박종호(Park, Jong-Ho),이면재(Lee, Myoun-Jae) 한국산학기술학회 2010 한국산학기술학회 학술대회 Vol.- No.-
무리짓기 시뮬레이션은 무리를 짓는 NPC의 인공 지능을 구현하는 것으로 게이머들에게 실세계와 같은 몰입에 도움을 준다. 이를 위하여 본 논문은 분석된 실세계에서의 물고기 무리짓기의 행동 패턴을 오우거 엔진을 이용하여 구현[1]하고, 이를 실세계의 물고기 떼의 행동 패턴과 비교하였다.
유현지(Yoo, Hyun-Ji),이면재(Lee, Myoun-Jae),김경남(Kim, Kyoung-Nam) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.12
무리를 형성하는 NPC들의 인공 지능을 실세계의 무리짓기와 유사하게 구현하는 것은 게임의 재미를 증가시 키는 요인이 될 수 있다. 이를 위하여, 본 논문에서는 분석된 실세계에서의 물고기 무리짓기의 행동 패턴을 설계하고 오우거 엔진을 이용하여 구현한다. 구현된 무리짓기의 효용성을 판단하기 위하여 실세계의 물고기 떼의 행동 패턴과 비교한다. 비교 결과, 구현된 물고기 떼의 행동 패턴과 실세계의 행동 패턴은 비슷함을 보인다. An implementation of NPC AI(artifical intelligence) is similar with real world's flocking can increase fun factor of game. To this end, we design fish flocking patten of analyzed real world, implement using Ogre engine in this paper. To determine the usefulness of implemented fish flocking, we compare fish flocking in real world with implemented fish flocking. Implemented behavioral patterns of fish flocking show similar behavioral patterns of fish flocking in real world.
Customer Satisfaction Management and Service Quality According to the DISC Behavior Type
Young-Jin SO,Ji-Yeon LEE,최영진,Woo-Sik Lee,An-Jin CHO,Myoun-Kil YOUN,Lee-Seung Kwon,Eun-Mee Choi 한국유통과학회 2020 유통과학연구 Vol.18 No.12
Purpose: This study aims to explore the service improvement and marketing strategy to measure the effect of the DISC (dominance, influence, steadiness, conscientiousness) behavior type of hair salon workers on service quality and marketing. Research design, data and methodology: 236 responses were analyzed by distributing questionnaires to hair salon workers through SNS. Factor analysis and reliability analysis were applied and the influence of job factors on work satisfaction and turnover intention, and the statistical significance of the DISC behavioral type adjustment effect verified. Results: First, among the general characteristics of the survey subjects, the most common respondents were women and interns in their twenties, with less than four years of experience and less than three years of work experience on site. Second, the working environment, employee relations and compensation policies caused by work-related factors have shown a major influence on work satisfaction. Third, the working environment and human relationships among the job factors have an impact on turnover intention. Conclusions: The working environment, human relations, and compensation system derived as job factors had a crucial effect in service quality and marketing on job satisfaction, and among job factors, working environment and human relations had a significant influence on turnover intention.
Characterization of the Two Methylation Steps Involved in the Biosynthesis of Mycinose in Tylosin
Kim, Eunji,Song, Myoung Chong,Kim, Myoun Su,Beom, Ji Yoon,Lee, Eun Yeol,Kim, Dong-Myung,Nam, Sang-Jip,Yoon, Yeo Joon American Chemical Society and American Society of 2016 Journal of natural products Vol.79 No.8
<P>The S-adenosyl-L-methionine-dependent O-methyltransferases TylE and TylF catalyze the last two methylation reactions in the tylosin biosynthetic pathway of Streptomyces fradiae. It has long been known that the TylE-catalyzed C2''-O-methylation of the 6-deoxy-D-allose bound to demethylmacrocin or demethyllactenocin precedes the Ty1F-catalyzed C3''-O-methylation of the D-javose (C2''-O-methylated 6-deoxy-D-allose) attached to macrocin or lactenocin. This study reveals the unexpected substrate promiscuity of TylE and TylF responsible for the biosynthesis of D-mycinose (Cr''-O-methylated D-javose) in tylosin through the identification of a new minor intermediate 2''-O-demethyldesmycosin (2; 3''-methyl-demethyllactenocin), which lacks a 2''-O-methyl group on the mycinose moiety of desmycosin, along with 2''-O-demethyltylosin (1; 3''-methyl-demethylmacrocin) that was previously detected from the S. fradiae mutant containing a mutation in the tylE gene. These results unveil the unique substrate flexibility of TylE and TylF and demonstrate their potential for the engineered biosynthesis of novel glycosylated macrolide derivatives.</P>
외식기업 컨버전스마케팅이 만족도와 구매의도에 미치는 영향 연구
고미애(Mi Ae Go),김지연(Ji Yeon Kim),이규면(Kyu Myoun Lee) 한국관광연구학회 2015 관광연구저널 Vol.29 No.7
The research suggests academical data and strategic implications to let Foodservice industry have competitive advantages for long-term period through the relationship purchasing intention and consumer satisfaction when a company use convergent marketing. The study can be summarized below. In first hypothesis, perceived expenses by analyzing the relationship between purchasing intention and convergence marketing had negative effects on purchasing intention. Suitability have a positive effect on purchasing intention. However, Image, personal innovativeness and self efficacy do not influence on purchasing intention. In second hypothesis, image had positive effects on consumer satisfaction through analyzing the relationship between convergence marketing and consumer satisfaction. In addition, perceived value, suitability, personal innovativeness and self-efficacy do not influence on consumer satisfaction. In third hypothesis, purchasing intention had positive effects on consumer satisfaction throught the analysis result of relationship between purchasing intention and consumer satisfaction. As a result, achieving the convergence product market requires to figure out consumer characteristics and it needs to develop and find a way to raise the convergence marketing awareness.
Bock, Gee-Woo,Kim, Jong-Hyun,Shuo, Hannah Yang,Lee, Ji-Myoun The Korea Society of Management Information System 2012 Asia Pacific Journal of Information Systems Vol.22 No.1
Asynchronous Learning Networks (ALN) has become a kind of prevalent information systems to supplement or even substitute a traditional classroom face-to-face teaching method. In this paper, we investigate the impacts of types of courses, lecturers' instruction models and computer self-efficacy on the ALN effectiveness in teaching from lecturers' perspective. We conducted survey to professors in various faculties such as School of Computing, Faculty of Arts, Science, Business, Law and Engineering in the National University of Singapore. According to the responses from ninety-eight professors, instruction modes positively influence the usage of ALN; types of course and lecturers' computer-efficacy influence lectures' satisfaction of ALN in teaching. Both the usage of ALN and satisfaction of ALN positively influence the effectiveness of ALN. The results of this study fill the gap of ALN researches in education by examining it from lecturers' perspective and enable schools to improve their implementation of ALN systems based on our findings.