• Korean Journal of Childcare and Education
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• v.15 no.1
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• pp.107-125
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• 2019

Objective: The purpose of this study was to examine the effects of fathers' playfulness on their children's social competence and emotional regulation, and the moderating effects of the fathers' play participation level on the relationship between his playfulness and his child's social competence and emotional regulation. Methods: The participants in this study were 139 children and their fathers. The children were aged between four and five years old attending nine preschools in Seoul. The collected data was analyzed through Pearson's correlations, and hierarchical regression analysis using SPSS 21.0. Results: First, fun-loving fathers had a significant effect on the cooperation and sociability of their children. Second, fun-loving fathers had a significant effect on their children's emotional regulation. Third, fathers' play participation level moderated the relationship between them enjoying silliness and their children's sociability. Fourth, fathers' play participation level moderated the relationship between them being fun-loving and their children's emotional regulation. Conclusion/Implications: The results of this study address the need for a high level of fathers' play participation in relation to the development of their children's social competence and emotional regulation.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.7
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• pp.3197-3202
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• 2013

When car builder designs the large carbody structure of railway vehicles, it is necessary to optimize the damping characteristics through the analysis of structure borne noise such as sound pressure level(SPL). This paper is a study on the structure borne noise analysis by characterizing the damping of double skin aluminum extruded panels for rolling stock carbody. The normalized SPL was calculated based on the simple source theory using measured mechanical mobility parameters from vibration tests(i.e. point, transfer and modal mobility). The reduced SPL was predicted by using finite element method by applying loss factor of damping material into laminated shell elements. It was found out that the damping material coated on the panels like underframe, which part is seriously affected by vibration during train run, took effect to reduce noise level.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.1
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• pp.515-524
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• 2014

In this paper, The investment prioritization model was investigated for keeping the service level of mooring facilities more than the target level of management with a limited budget in the right time. Network level prioritization criteria of the national scale was developed to take into criteria index and quantitative evaluation, management authority's opinion. Delphi method was conducted maintenance exports of mooring facilities over twice for verifying the validity and adequacy. In order to improve the objectivity of criteria, the criteria for evaluating the utilization of port facilities is presented form yearly facility traffic/facility's length, the result of the analysis of facility traffic data. The investment prioritization criteria of mooring facilities is expected to be utilized for more efficient and national budget distribution applied to the maintenance budget plan of nationwide.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.11
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• pp.5187-5195
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• 2012

This study was performed to investigate the factors related to assertive behavior among non-smoking college students under secondhand smoke exposure. Data were collected from 246 non-smoking college students at one university in B city from October to November, 2011 and analyzed by multiple logistic regression. The factors related to assertive behavior were men(OR 3.173, 95% CI 1.676-6.005), with another smoker in household(OR 1.679, 95% CI 1.056-2.983), high level of perceived benefit(OR 2.821, 95% CI 1.044-7.623), high level of social influence(OR 3.753, 95% CI 1.845-7.634), high level of self efficacy(OR 4.140, 95% CI 2.159-7.941). It is necessary to develop and evaluate the health promotion program for enhancing of assertive behavior of non-smoking college students regarding of perceived benefit, social influence and self efficacy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.7
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• pp.4745-4757
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• 2015

This research has been conducted to understand relations in general hospital nurses health level (SF-36), sociodemographic characteristics, health related factors, job related factors, and job stress. The subjects of the research are 572 nurses who are working in six different general hospitals with 250 beds. Data which has been collected from self administered questionnaire during the period from May 1st, 2014 to may 31th. The result has described, the health level(SF-36) of nurses has strong relation to sociodemographic characteristics, health related factors, job related factors, and even job stress. Especially the health level (SF-36) of nurses has risen when the nurses have less job stress, lower job pressure and more support from supervisor and coworkers. Therefore, the primary things to create are system development and atmosphere which controls the nurses' job stresses. Moreover, it is also important to develop programs for nurses' career satisfaction.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.12
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• pp.8437-8446
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• 2015

This study was designed to examine the effects of weight reduction programme(WRP) for obese primary school students on serum lipid level. This research used non-equivalent control group non-synchronized design that was conducted on two groups comprising 5th and 6th graders: an experimental group that received 12-week long WRP that combines diet, exercise and behavior modification therapy and the control group that did only rope-jumping. The collected data were analysed using ${\chi}^2$-test, t-test, ANOVA, Pairwise Comparsons by SPSS 18.0 Programme. It was proven that the WRP of this study was effective in lowering the total cholesterol(F=4.21, p=.049) and triglyceride(F=4.25, p=.049). WRP may be used as a basis for further studies that may be conducted after intervening the motivation level of the study subjects.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.12
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• pp.8416-8423
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• 2015

The purpose of this study was to find out early childhood teachers' personality and analysis on the status and awareness of character education for early childhood education by grouping according to level of personality. The results show that there was significantly difference career and age. While early childhood teachers sympathize importance and need of personality education, absence of methods for practice is obstacle. A high level personality group notices that respect for early children' life, humanity and virtue of relationship is importance virtue. Therefore they consider respecting people as aim of personality education and recognize that they need to teach right values through whole area as education contents. A low level personality group notices that performance of their duty and manners of early children is needed virtue. They consider manners education as aim and content of personality education also recognize guiding with connecting home teaching is desirable. Early childhood teachers recognize that ambiguity of personality education's aim and contents, a gap between reality and ideals and absence of teachers' personality is difficulty of personality education.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.5
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• pp.2516-2523
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• 2013

Noise occurred when medical treatment in dental clinic will affect the patients. This study was measured the noise level and frequency in case of medical examination and also has evaluated the degree of indoor noise using the NR-curve, NRN and a distance to conversation between worker and patients using the PSIL. It shows that noise level was 69.3~81.5dB(A) and frequency was very high (more than 4K(Hz)) and analysis by NR-curve showed that it was exceed the noise permit level and distance to conversation was less than 1meter by PSIL. To remedy a fear of noise in patients and provide a conversational satisfaction, it's considered that choosing the low noise-vib. equipment, using the masking effect and set the room to explain. So It is possible to improve their competitiveness.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.3
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• pp.373-379
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• 2016

This study examined the level-differentiated mathematic classes to offer basic data for effective college mathematics curriculum. Using the Kolb Learning Style, this study surveyed 213 college engineering students in 6 level-differentiated classes in one university and analyzed the significant consequence. The results showed that the ranking of the Learning Style in a superior mathematic class is Diverger, Accommodator, Assimilator, and Converger. Second, the ranking of the Learning Style in the inferior mathematics class was Accommodator, Diverger, Assimilator, and Converger. Third, for effective class of superior mathematics class, professors need to give sufficient time to analyze mathematics problems by the students themselves. Fourth, for an effective class of inferior mathematic class, professors need to use experimental and diverse teaching method to enhance the students' concentration and learning achievement. Based on this study, professors should develop teaching methods that fit the students' Learning Style and the properties of college mathematics curriculum.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.416-424
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• 2017

The purpose of this study is to analyze the effects of learning motivation on interaction in online collaborative learning. The study subjects are 79 university students who take courses in teaching. Learning motivations measured the intrinsic goal orientation, extrinsic goal orientation, tasks value, control of learning beliefs, test anxiety, self-efficacy, goal orientation by MSLQ. Next, the level of interaction was measured by online collaborative tasks. The group for online cooperation tasks consisted of four to five people and random assignment. The level of interaction was used frequency and score that quantitative Value assess. The collected data were analysed using multiple regression analysis(stepwise). As a result, self-efficacy and extrinsic goal orientation, tasks value, mastery goal orientation were positive effect on frequency and score. next, test anxiety and performance avoid goal orientation were negative effect on frequency and score.