• The Journal of the Korea Contents Association
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• v.20 no.1
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• pp.259-270
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• 2020

The purpose of this study was to examine the mediating effects of mattering and unconditional self-acceptance in the relationship between college student socially-prescribed perfectionism and social anxiety. For this purpose, a questionnaire was conducted for students in college and a total of 408 copies were used for analysis. The instruments used in the measurement were socially prescribed perfectionism scale(HFMPS), social anxiety scale, mattering scale, and unconditional self-acceptance. The collected data were analyzed by descriptive statistics and correlation analysis using SPSS 21.0, and the structural equation model and mediating effects were verified using Mplus 7.0. The results of the study are as follows. First socially-prescribed perfectionism showed a positive correlation with social anxiety but negative correlation with mattering and unconditional self-acceptance. And there was a positive correlation between mattering and unconditional self-acceptance but negative correlation with social anxiety. Second, the mediating effect of mattering was confirmed in the relationship between socially-prescribed perfectionism and social anxiety. Third, the mediating effect of unconditional self-acceptance was confirmed in the relationship between socially-prescribed perfectionism and social anxiety. Fourth, the effect of double mediation of mattering and unconditional self-acceptance was confirmed in relation to socially-prescribed perfectionism and social anxiety in college students. Based on these findings, the implications of the study were presented and the limitations of the study and suggestions for further research were discussed.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.623-633
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• 2019

This research investigated the mediating effects of communication skills in the relationship between perceived social support and school adjustment of high school students in the multicultural families, South Korea. The high school students from one to three degree in the school, who are joined the center for multicultural families in Kyeonggi-do province, were participated in the survey for this research. Total 110 were analysed using SPSS version 23.0, and used a correlation and regression analyses, proposed by Baron and Kenny(1986), to estimate the relationships between research variables. The results were as follows: First, perceived social support, communication skills and school adjustment were significant associated each other, and had positive correlations. Secondly, communication skilsl of multicultural families' high school students in South Korea had partial mediating effects on the relationship between perceived social support and school adjustment. Based on these findings, the limitations and implications of this research were discussed.

• The Journal of the Korea Contents Association
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• v.22 no.1
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• pp.535-544
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• 2022

This study identified the relationship between deliberate rumination of adults who experienced traumas and post-traumatic growth, and examined the mediating model of meaning of life moderated by trauma intensity on deliberate rumination and post-traumatic growth. Participants were 318 male and female adults who experienced traumas. The moderated mediating effect was analysed with PROCESS Macro 3.5 Model 7. Results revealed that deliberate rumination of adults who experienced traumas was positively correlated with trauma intensity, meaning of life, and post-traumatic growth, while meaning of life was positively correlated with post-traumatic growth. In a moderated mediating model for post-traumatic growth, there was significant interaction effect of deliberate rumination and trauma intensity; conditionally indirect effect of deliberate rumination was only significant for whose trauma intensity were high. These findings suggest that adults who did deliberate rumination are more likely to experience post-traumatic growth with finding meaning of life. And, the moderating effect suggests that this influence is only with higher levels of trauma intensity. In conclusion, deliberate rumination of severe traumatic event may lead to post-traumatic growth, and it can be helpful to experience the meaning of life in the process.

• The Journal of the Acoustical Society of Korea
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• v.10 no.2
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• pp.13-22
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• 1991

The presence of an unbalanced mass is originated the common source of vibration in machines with rotating rotor. In this study, the unbalanced rigid rotor mounted on an overhang shaft is balanced using the static balancing procedure, and the compensation mass is estimated by the phase angle method and four run method. Also, the reduction of vibration level before and after balancing is examined. In the experimental results, it is shown that the vibration due to the unbalanced mass is decreased by eliminating the effect of the unbalance. Above all, the four run method is proved more effective on the ability of vibration reduction, in small unbalanced mass, the phase angle method.

• Aerospace Engineering and Technology
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• v.2 no.2
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• pp.1-10
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• 2003

An airship is statically unstable, because it has no wing, comparatively small tail and large hull. Hence, an accurate prediction of dynamic stability is critical. In this study, dynamic stability data of the Mid-Size Airship is acquired through forced oscillation wind tests. The test was done in BAR LAMP which is Birhle Applied Research Inc's facility located in Germany. The test was composed with 16 static runs and 26 dynamic runs. As a result, dynamic characteristics of the airship depends on sideslip angle, angular rate and its direction as well as angle of attack. Generally, it is obtained that 3 directional moments have damping, but normal force, side force, and cross-derivatives are unstable. The dynamic derivatives are not sensitive to control surfaces, but have nonlinear dependency on sideslip angle.

• Composites Research
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• v.14 no.6
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• pp.9-15
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• 2001

In the present work, a linear static analysis is presented for thin-walled prismatic box-beams made of generally anisotropic materials. A mixed beam theory has been used to model and carry out the analysis. Several different constitutive assumptions for the shell-wall of the beam section are assessed into the beam formulation. Simple layup cases of box-beams representing bending-torsion or extension-torsion coupled configuration have been considered and tested to clearly show the effects of elastic couplings of the beam. A detailed finite element structural analysis using the MSC/NASTRAN has been carried out to validate the current analytical results. Numerical results show that appropriate assumptions for the constitutive relations are important and crucial for the accurate prediction of beam stiffness constants and also thor the beam behavior.

• Journal of KIISE:Software and Applications
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• v.32 no.8
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• pp.808-818
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• 2005

We devise a differential fixpoint computation method and develop a new worklist algorithm based on it. Compared with other differential methods, our method can deal with non-distributive systems and adopt any worklist scheduling policy satisfying restrictions imposed by differential evaluation. As a practical application, we present an interpretation framework and implement constant and alias analysis and memory lifetime analysis based on it. Our experiment shows that our method can save computation and worklist scheduling is also important in differential fixpoint evaluations.

• Journal of the Korean GEO-environmental Society
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• v.3 no.2
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• pp.61-70
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• 2002

This paper presents the engineering property of light weight soil made of soil mixed with recycled Styrofoam and stabilizer. Recycled Styrofoam is widely used for lightweight fill material because it has important geotechnical characteristics which are light, adiabatic, and effective for vibration interception. It is very easy to get the disposal styrofoam. For this study, dynamic compaction test, static compaction test and pH and leaching tests were performed. Based on the test results, it is concluded that the static compaction method is recommened to prevent from crushing materials and pH values of embankment materials are satisfied with these of domestic and RCRA configuration.

• The Journal of Korean Association of Computer Education
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• v.10 no.2
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• pp.77-87
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• 2007

The purpose of the study was to investigate the effects of social network centrality variables on students' performance in blended learning environment in a higher educational institution. Using data from 36-student course on Learning Theories and Their Implications on Instructional Design Practices, the researcher empirically tested how social network centrality variables - such as friendship network centrality, advice network centrality, and adversary network centrality - are correlated with academic achievement measures. Results indicate, as hypothesized, the friendship and advice centrality positively correlate with, whereas the adversary centrality being negatively correlate with application performance measures and test scores. The size and quality of posted online discussions are positively and strongly correlated with the advice network centrality.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2008.02a
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• pp.151-154
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• 2008

방송된 프로그램의 VOD 서비스는 웹 및 다양한 매체를 통해 중요한 정보 서비스가 되고 있다. 기존의 멀티미디어 검색은 파일명이나 메타데이터를 바탕으로 직접 검색하는 정적인 검색 방법이었다. 본 논문에서는 이런 정적인 검색 방법에서 벗어나 의미적으로 연관된 비디오를 동적으로 검색하여 풍부한 검색 결과를 보여주는 방법을 제안하고, 이를 수행하는 프로토타입 시스템을 설계, 구현함으로써 제안한 방법의 타당성을 보인다. 제안하는 방법은 온톨로지를 이용하여 특정 도메인상에서 사용자가 관심을 가지는 정보의 연관성을 표시하고, 이를 검색과정에 적용한다. 검색 결과는 의미적으로 연관된 정보를 보여줄 뿐 아니라, 연관 카테고리를 바탕으로 관련된 정보를 정리하여 보여줌으로써 사용자는 풍부한 검색 결과 가운데에서 원하는 정보를 쉽고 빠르게 접근할 수 있다. 예를 들면, '고혈압'이라는 검색어를 사용자가 입력하면, 고혈압에 관련된 방송 프로그램 뿐 아니라, '고혈압'에 좋은 음식이나 그 음식의 효능, 효과, 요리법 등 방송을 통해 볼 수 있는 관련 정보들을 한번에 검색할 수 있다.