• 지식경영연구
• /
• 제14권4호
• /
• pp.47-74
• /
• 2013

Many organizations require employee's innovative behaviors, since one way for organizations to become more innovative is to capitalize on their employees' ability to innovate. However, employee's frequent conflict not only causes serious damage to organizations, but also blocks the authentic attitude of knowledge creation and has a negative impact on the innovative behaviors of employees. The purpose of this study is to examine the relationships among employee's task conflict and relationship conflict, employee's authentic attitude of knowledges creation, and innovative behaviors of employees in organizations. The result of analysis shows that the influence of task conflict on innovative behaviors is significant. And the influence of task conflict and relationship conflict on employees' authentic attitude of knowledge creation is significant. And the influence of employees' authentic attitude of knowledge creation on innovative behaviors is positively significant. Thus, the study provides researchers and practitioners with a matter of primary interest in knowledge creation as a driving force leading to innovative behaviors of employees, in which the authentic attitude of employees turns out to be an important psychological factor.

• 한국안전학회지
• /
• 제9권3호
• /
• pp.3-12
• /
• 1994

This study employed the Eshelby's equivalent inclusion method incorporated with mean field theory to investigate the Internal stress of short fiber-reinforced metal matrix composites during static loading and the dynamic finite element analysis by using alternative unit cell model to investigate the impact behaviors during the impact loading. Using the 2124 Al-SiC system as an example, the general effects of parameters such as fiber's aspect ratio, content and modulus were examined.

• 폴리머
• /
• 제27권1호
• /
• pp.52-60
• /
• 2003

본 연구에서는 탄소섬유 강화 에폭시 수지 복합재료의 충격 특성 향상을 위해 탄소섬유표면에 전해 및 무전해 니켈도금처리를 하였으며, 이때 각각의 니켈도금법에 따른 충격 특성을 비교 고찰하였다. 도금된 탄소섬유의 표면 특성은 XRD, SEM, 그리고 접촉각 측정을 통해 관찰하였고, 탄소섬유 강화 복합재료의 충격 특성은 Izod형의 충격시험기를 이용하여 분석하였다. 실험결과, 무전해 니켈도금층에는 전해도금층과는 달리 Ni-P 합금이 포함된 것이 XRD를 통하여 확인되었으며, 전해 니켈도금된 탄소섬유가 무전해 니켈도금된 것보다 표면자유에너지가 큰 것이 접촉각 측정을 통해 관찰되었다. 한편, 무전해 니켈도금된 탄소섬유 강화 에폭시 수지 복합재료는 충격강도가 크게 증가하였으나, 전해 니켈도금된 복합재료의 경우는 충격강도가 증가하지 않았다. 이러한 결과는 각각의 도금법에 따른 젖음성의 차이가 탄소섬유 강화 복합재료의 연성을 변화시켜 충격강도 증가에 주요하게 작용되었기 때문으로 사료된다.

• Asia Marketing Journal
• /
• 제16권1호
• /
• pp.35-69
• /
• 2014

The impact of competition on pricing has been studied in the context of counterfactual merger analyses where expected optimal prices in a hypothetical monopoly are compared with observed prices in an oligopolistic market. Such analyses would typically assume static decision making by consumers and firms and thus have been applied mostly to data obtained from consumer packed goods such as cereal and soft drinks. However such static modeling approach is not suitable when decision makers are forward looking. When it comes to the markets for durable products with indirect network effects, consumer purchase decisions and firm pricing decisions are inherently dynamic as they take into account future states when making purchase and pricing decisions. Researchers need to take into account the dynamic aspects of decision making both in the consumer side and in the supplier side for such markets. Firms in a two-sided market typically subsidize one side of the market to exploit the indirect network effect. Such pricing behaviors would be more prevalent in competitive markets where firms would try to win over the battle for standard. While such qualitative expectation on the relationship between pricing behaviors and competitive structures could be easily formed, little empirical studies have measured the extent to which the distinct pricing structure in two-sided markets depends on the competitive structure of the market. This paper develops an empirical model to measure the impact of competition on optimal pricing of durable products under indirect network effects. In order to measure the impact of exogenously determined competition among firms on pricing, we compare the equilibrium prices in the observed oligopoly market to those in a hypothetical monopoly market. In computing the equilibrium prices, we account for the forward looking behaviors of consumers and supplier. We first estimate a demand function that accounts for consumers' forward-looking behaviors and indirect network effects. And then, for the supply side, the pricing equation is obtained as an outcome of the Markov Perfect Nash Equilibrium in pricing. In doing so, we utilize numerical dynamic programming techniques. We apply our model to a data set obtained from the U.S. video game console market. The video game console market is considered a prototypical case of two-sided markets in which the platform typically subsidizes one side of market to expand the installed base anticipating larger revenues in the other side of market resulting from the expanded installed base. The data consist of monthly observations of price, hardware unit sales and the number of compatible software titles for Sony PlayStation and Nintendo 64 from September 1996 to August 2002. Sony PlayStation was released to the market a year before Nintendo 64 was launched. We compute the expected equilibrium price path for Nintendo 64 and Playstation for both oligopoly and for monopoly. Our analysis reveals that the price level differs significantly between two competition structures. The merged monopoly is expected to set prices higher by 14.8% for Sony PlayStation and 21.8% for Nintendo 64 on average than the independent firms in an oligopoly would do. And such removal of competition would result in a reduction in consumer value by 43.1%. Higher prices are expected for the hypothetical monopoly because the merged firm does not need to engage in the battle for industry standard. This result is attributed to the distinct property of a two-sided market that competing firms tend to set low prices particularly at the initial period to attract consumers at the introductory stage and to reinforce their own networks and eventually finally to dominate the market.

• Carbon letters
• /
• 제16권2호
• /
• pp.107-115
• /
• 2015

Impact damages induced by a low-velocity impact load on carbon fiber reinforced polymer (CFRP) composite plates fabricated with various stacking sequences were studied experimentally. The impact responses of the CFRP composite plates were significantly affected by the laminate stacking sequences. Three types of specimens, specifically quasi-isotropic, unidirectional, and cross-ply, were tested by a constant impact carrying the same impact energy level. An impact load of 3.44 kg, corresponding to 23.62 J, was applied to the center of each plate supported at the boundaries. The unidirectional composite plate showed the worst impact resistance and broke completely into two parts; this was followed by the quasi-isotropic lay-up plate that was perforated by the impact. The cross-ply composite plate exhibited the best resistance to the low-velocity impact load; in this case, the impactor bounced back. Impact parameters such as the peak impact force and absorbed energy were evaluated and compared for the impact resistant characterization of the composites made by different stacking sequences.

• 복식문화연구
• /
• 제19권6호
• /
• pp.1272-1287
• /
• 2011

The purpose of this study were to investigate the influences of objectified body consciousness and body esteem on the weight and hair management behaviors of females. The questionnaires were administrated to 632 female residents of the Gwangju city, Korea. The SPSS for Windows 18.0 Statistics Package was used for data analysis. To verify the formulated hypotheses, descriptive statistical analysis, factor analysis, reliability analysis(Cronbach's ${\alpha}$), regression analysis, path analysis were used. The results were as follows. First, objectified body consciousness was divided into three factors: body shame, body surveillance, and appearance control beliefs. objectified body consciousness turned out to have positive influences on overall weight management behaviors and hair management behaviors. Second, objectified body consciousness appeared to have positive influence on overall body esteem. When the influences were further examined, body surveillance turned out to have significant positive influence on body esteem, whereas body shame and appearance control beliefs seemed to have few significant influences on body esteem. Third, body esteem appeared to have significant positive influence on all weight management behaviors and hair management behaviors. Fourth, it was found that objectified body consciousness had direct impact on the weight management behaviors and hair management behaviors without mediation body esteem.

• 대한간호학회지
• /
• 제48권1호
• /
• pp.109-121
• /
• 2018

Purpose: This study was conducted to examine the longitudinal effects of parenting stress and parental control attitudes on problem behaviors in preschool children, using a latent growth model. Methods: Participants were 1,724 pairs of parents and 1,724 preschool children who had completed the panel survey on Korean children ($5^{th}{\sim}7^{th}$ survey panels). Results: An analysis of the multivariate latent growth model of parenting stress, parental control attitudes, and children's problem behaviors suggested that the parents' intercepts for parenting stress influenced their intercepts for parental control attitudes (father: ${\beta}=.21$, p<.001; mother: ${\beta}=.55$, p<.001). In addition, the slopes for fathers' parenting stress was the only aspect that affected the slopes for mothers' parental control attitudes (${\beta}=.77$, p<.001). Moreover, both the intercepts and slopes of parenting stress and parental control attitudes significantly affected the children's problem behaviors. Conclusion: This study is significant as it provides longitudinal evidence of the impact of parenting stress and parental control attitudes on children's problem behaviors. The findings suggest that accurately assessing changes in parenting stress and parental control attitudes and developing intervention programs to reduce them will be effective in reducing problem behaviors in children.

• 보건교육건강증진학회지
• /
• 제34권1호
• /
• pp.35-45
• /
• 2017

Objectives: This study thus set out to examine the health literacy and self-care behaviors of community-dwelling elderly patients with hypertension and investigate their relations and influential factors, thus providing basic data to develop a nursing intervention program to promote self-care behaviors among hypertension patients. Methods: The subjects include 180 hypertension patients using community health centers, public senior centers, and welfare centers in Jeju. Results: The subjects scored a mean of 49.8 (${\pm}12.4$) points on health literacy and 55.8 (${\pm}6.7$) points on self-care behaviors. In the results of hierarchical regression analysis, health literacy independently predicted self-care behaviors (${\beta}=.12$, p=.050) after controlling for general characteristics, hypertension-related knowledge and self-efficacy. Conclusions: These results suggest that interventions for improving health literacy are important to enhance elder's ability of self-care behaviors. It is necessary to understand the health literacy of elderly patients with hypertension before providing them with educational intervention and information and to develop appropriate educational materials and intervention programs.

• 동서간호학연구지
• /
• 제28권1호
• /
• pp.41-48
• /
• 2022

Purpose: The purpose of this study was to identify factors influencing prevention behaviors for particulate matter exposure in young adults. Methods: A convenience sample of 330 young adults was recruited from the community. Data were collected using a structured questionnaire and analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients, and stepwise multiple regression analysis with the SPSS/WIN 26.0 program. Results: The factors affecting prevention behaviors of particulate matter exposure were self-efficacy (β=.54 p<.001), subjective norm (β=.18, p<.001) and using the air purifier (β=.-17, p<.001). These variables had a 46% variance to explain prevention behaviors for particulate matter exposure. Conclusion: Findings showed that 'self-efficacy' and 'subjective norm' were important factors influencing prevention behaviors of particulate matter exposure in young adults. Thus, we need to consider the positive impact of prevention behaviors of particulate matter exposure and increase the chances of prevention behaviors of particulate matter exposure program for young adults.

• International Journal of Computer Science & Network Security
• /
• 제22권6호
• /
• pp.145-156
• /
• 2022

Children are the foundation and future of this society and understanding their impressions and behaviors is very important and the child's behavioral problems are a burden on the family and society as well as have a bad impact on the development of the child, and the early diagnosis of these problems helps to solve or mitigate them, and in this research project we aim to understand and know the behaviors of children, through artificial intelligence algorithms that helped solve many complex problems in an automated system, By using this technique to read and analyze the behaviors and feelings of the child by reading the features of the child's face, the movement of the child's body, the method of the child's session and nervous emotions, and by analyzing these factors we can predict the feelings and behaviors of children from grief, tension, happiness and anger as well as determine whether this child has the autism spectrum or not. The scarcity of studies and the privacy of data and its scarcity on these behaviors and feelings limited researchers in the process of analysis and training to the model presented in a set of images, videos and audio recordings that can be connected, this model results in understanding the feelings of children and their behaviors and helps doctors and specialists to understand and know these behaviors and feelings.