• Nuclear Engineering and Technology
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• v.41 no.10
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• pp.1333-1346
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• 2009

To assure the reliability of cylinders or shells with fluid-filled annulus, it is necessary to investigate the modal characteristics considering fluid-structure interaction effect. In this study, theoretical background and several finite element models are developed for cylindrical shells with fluid-filled annulus considering fluid-structure interaction. The effect of the inclusion of the fluid-filled annulus on the natural frequencies is investigated, which frequencies are used for typical dynamic analyses such as responses spectrum, power spectral density and unit load excitation. Their response characteristics are addressed with respect to the various representations of the fluid-structure interaction effect.

• Korean Journal of Child Studies
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• v.11 no.2
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• pp.24-43
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• 1990

This study investigated the effectiveness of teachers inquiry-discovery verbal interaction which was compared with expository-directive verbal interaction. Two teachers from two different kindergarten groups were trained and observed during conversation and science corner activities. Sixty children were observed during science corner activities and tested with a scientific achievement instrument. Teacher's inquiry-discovery verbal interaction had a more positive effect on children's scientific attitudes than teacher's expository-directive verbal interaction. Teacher's inquiry-discovery verbal interaction had a more positive effect on children's scientific achievement than teacher's expository-directive verbal interaction. Children's scientific attitudes and children's scientific achievement had a positive correlation.

• Korean Journal of Childcare and Education
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• v.15 no.6
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• pp.41-57
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• 2019

Objective: The purpose of this study was to investigate the moderate effect of the physical environmental-level between infant teachers' positive play beliefs and teacher-infant interaction. Methods: The subjects of this study were 483 teachers in charge of one-year-old and two-year-old infants in child care centers located in metropolitan areas. The data were collected by asking the teachers to respond to a questionnaire and the data collected were analyzed through correlation and hierarchical multi- regression analysis. Results: First, the positive play beliefs of the infant teacher, the physical environment level, and the teacher-infant interaction showed significant proportional correlations. Second, the physical environment level moderated the influence of the teacher's positive play beliefs on teacher-infant interaction. In particular, results showed that functional interior space configuration, outdoor playground composition and facilities among the sub-variables of the physical environment level had a moderating effect. Conclusion/Implications: The results of this study show that teachers with positive play beliefs have positive teacher-infant interaction when there is sufficient space available for infants and teachers. This indicates that the human and physical environments of child care centers can promote teacher-child interaction.

• Journal of Distribution Science
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• v.21 no.12
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• pp.91-102
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• 2023

Purpose: This study analyzed the structural relationship between interaction quality and relationship satisfaction, towards providing managerial implications for effective relationship management in the B2B market. Research design, data and methodology: The following survey was conducted only if respondents had used the airline's B2C more than twice. A total of 398 copies were collected and empirical analysis was conducted using AMOS 18.0 and PASW 18.0. Results: The flexibility, quickness, and fairness that make up the interaction quality in airline B2C have been shown to have a significant impact on trust, relationship performance and relationship satisfaction. Conclusions: Usefulness, quickness, and fairness, which are sub-variables of airline B2C mutual quality, have a positive effect on trust. In addition, trust was found to have a positive effect on relationship performance and relationship satisfaction. We draw implications for the importance of interaction quality in order to strengthen and sustain relationships with users in the airline B2C distribution market. In addition, in order to build meaningful relationship performance and relationship satisfaction, interaction quality and trust level should be examined first, and interaction quality improvement should be the top goal.

• International Journal of Advanced Culture Technology
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• v.10 no.4
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• pp.304-315
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• 2022

The effect on learning satisfaction was compared and analyzed according to the interaction of learners in non-face-to-face classes. 38 students enrolled in the Department of Chemistry Education at G University in Gyeongnam were selected for the study. As a result of analyzing the change in learning satisfaction according to learners' interactions, positive correlations between them were shown in non-face-to-face classes. The type of classes mainly consisted of non-face-to-face real-time classes, and despite the non-face-to-face classes environment, learners focused on classes and put a lot of effort to strengthen learning. Among learners' interactions, the effect of learner-content interaction on learning satisfaction was relatively the highest, while the effect of learner-learner interaction and learner-instructor interaction on learning satisfaction was low. It was found that learners' teaching-learning in non-face-to-face classes relied heavily on learning content, and interactions with fellow learners and instructors were very limited.

• Journal of Korea Society of Digital Industry and Information Management
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• v.18 no.3
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• pp.43-53
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• 2022

This study analyzed the learning effect on K-MOOC. It was confirmed how the ease and interaction of K-MOOC affects learning satisfaction and Learning Persistence. The results of the study are as follows. First, it was found that the interaction and ease of K-MOOC learners had a positive effect on learning satisfaction. Second, it was found that the ease and interaction of K-MOOC learners had a positive effect on the Learning Persistence. Third, the satisfaction and willingness of learners with prior course experience of K-MOOC learners were high, and there was a significant difference according to the course experience. This study is meaningful in that the effect of actual learning activities was verified for K-MOOC learners. Based on the results of this study, it is necessary to conduct a comparative study on the K-MOOC activation plan and the case of using K-MOOC at each university.

• Korean Journal of Childcare and Education
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• v.13 no.6
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• pp.143-161
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• 2017

Objective: The purpose is to verify that whether there are significant correlation between parent-teacher cooperation, quality of home environment, and mathematical interaction of parents and cognitive development of 3-year-olds, and the quality of home environment and mathematical interaction mediate the relationship between the parent-teacher cooperation and the cognitive development. Methods: A test was performed on 110 3-year-olds enrolledin a daycare center located in city S, and a questionnaire survey was conducted on their parents. We analyzed our data using SPSS WIN 21.0 and pearson's correlation, tested the mediating effect using regression, and used the Sobel test to check significance of the mediating effect. Results: Cognitive development of 3-year-olds was correlated with the parent- teacher cooperation, the quality of home environment, and mathematical interaction of parents. The quality of home environment showed complete mediating effect on the relationship between the parent-teacher cooperation and the cognitive development, and the mathematical interaction showed complete mediating effect on the relationship between the parent-teacher cooperation and the cognitive development. Conclusion/Implications: The parent-teacher cooperation indirectly predicts the cognitive development through the quality of home environment and the mathematical interaction. This research can contribute to the development of the family- institution connection program to facilitate the parent-teacher cooperation.

• Journal of Families and Better Life
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• v.31 no.5
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• pp.185-200
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• 2013

The purpose of this study is to examine the moderating effect of consumer competency associated with the influence of interaction styles with sales man on inappropriate consumer compliant behaviors. For the purpose, the survey questionnaire was administered to 1,050 consumers across country by the on-line survey. The research data are analyzed using four statistical methods: factor analysis, reliability analysis, multiple regression, and moderating regression analysis. The results are as follows: First, some demographic variables, for example, male, level of education, marital status, amount of monthly household income had significant effects on inappropriate consumer compliant behaviors such as rudeness of behavior and interference with business. Second, it is significant that two types of interaction with sales man(passive and assertive interaction) have positive effect on rudeness of behaviors, while assertive interaction only has positive effect on inference with business. Third, this research has been shown to be significant, based upon the findings on moderating effects of consumer competency in respect to consumers' level of inappropriate compliant behaviors. In particular, consumer competency has negative moderating effects between interaction styles with sales man and rudeness of behaviors. Practical implications were discussed in terms of effective customer management strategies and policy making related to consumer education.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2008.10b
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• pp.235-245
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• 2008

The interactive advertisement is already on satellite and cable broadcasting hereafter the introduction of this system is concerned on terrestrial programs. This study is to research the effectiveness of interactive TV advertising focusing on factors of involvement and interaction. Study started for the effect measurement of interactive television advertisement. Interactive television advertisement has different concept than existing television advertisement. Thus, the effect also needs to examine in other methods. Study is mainly focusing on the characteristics of interactive and the experiments, which was based on existing data, for measurement of effect. In the experiments, the characteristics were categorized in a search time, a number of searched pages about interactive television advertisement. The research finds that the involvement of the audience increases when the interaction of advertising attitude, brand attitude, and purchase intentions also increases. And so, a successful interactive TV advertisement results in longer searching hours and greater it visits by the audience when the interaction factors are considered and increased. By study of consumer's characteristics and behavior, a new method of the effect measurement for interactive television advertisement is provided. The new method includes not only existing measurement elements of television advertisement which are attitude on advertising and brand, and customers' purpose, but also the features of interactive television advertisement, which are search time, a number of searched pages. Recently added features provides data of the effect on high/low groups and it contributes to the process of interactive television advertisement. Study on interactive television advertisement will be helpful to plan an effective strategy by suggesting the theoretical evidence of its effect.

• Korean Parent-Child Health Journal
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• v.5 no.2
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• pp.253-276
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• 2002

Mother and infant relationship has a great influence on child's developments. Expecially, mother and infant relationship is affected by mother and infant interactions during one year after birth and an omen of mother-infant interaction after birth is mother-fetus interaction. This study was conducted to develop mother-fetus interaction promotion program of talking and tactual stimulation aimed at enhancing sensitivity of primiparas and to evaluate the effect of the nursing intervention program on mother-fetus interaction and mother-infant play interaction. Non-eguivalent control group posttest design was used, and Blumer's symbolic interaction theory and Barnard's mother-infant interaction model was used a conceptual framework of this study. Fifty primiparas and infant(26 mother-infant dyads for intervention group and 24 dyads for control group) were recruited from three general hospital and an OBGY clinic located in Kwang Nung city. Data was collected from January 30th to December 20th in 2001. For the intervention group, programed education which focused on mother-fetus interaction in the 1st trimester. Telephone counselling was provided with interval of two weeks. For two groups, home visiting for data collection of mother- fetus interaction was conducted at 36 to 38 weeks of gestational age. And mother-infant play interactions were assessed at 4 to 6 weeks after birth using videotapes. Play situations were videotaped and two trained observers analyzed the tapes. The data were analyzed using chi-square test and Fisher's Exact Test to test the equivalence of two groups, and the effect of intervention progrom was determined with t-test and Wilcoxon Rank Sum test. The results were as follows: 1. The significant difference was found in mother-fetus interaction between two groups(t=2.085, P=0.0425). It indicated that intervention progrom was effective in improving mother-fetus interaction. 2. The significant difference was found in mother-infant play interaction between two groups(W=347.5, P=0.0001). In subscale analysis, three subscales showed significant differences between the groups: interactional behavior of mother(t=5.921, P=0.0001), interactional behavior of infant(t=5.736, P= 0.0000), and synchronic interactional behavior of mother and infant(t=7.940, P= 0.0000). In conclusion, this study has shown that the applied nursing intervention aimed at enhancing sensitivity of primiparas promoted mother-fetus interaction and mother-infant play interaction. Therefore, this study suggests that this nursing interventions to increase maternal sensitivity to the fetus's movement should be broadly applied to primiparas, which can be beneficial for formation of mother - infant relationship, and for promotion the social, affective, and cognitive developments of their children.