• Journal of Digital Convergence
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• v.19 no.8
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• pp.361-370
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• 2021

The purpose of this study was to examine the mediating effect of self-esteem in the relationship between bicultural acceptance attitude and peer relationship of multicultural adolescents, and to examine the moderated mediating effect of multicultural acceptability. To this end, the data of 1,197 adolescents who participated in the 8th year survey(2018) of the 'Multicultural Adolescent Panel Study' surveyed by the National Youth Policy Institute were analyzed. As a result of the analysis, first, it was found that the bicultural acceptance attitude of multicultural adolescents had a significant positive effect on self-esteem. Second, it was found that while bicultural acceptance attitude of multicultural adolescents had a significant effect on peer relationship, self-esteem partially mediated these relationships. Third, it was found that multicultural acceptability moderating the indirect effect that affects peer relationship through self-esteem as a mediating bicultural acceptance attitude of multicultural adolescents. Based on the results of this study, a support plan was sought to positively form and maintain the peer relationship of multicultural adolescents, and the implications, limitations, and suggestions for subsequent studies of this study were presented.

• The Journal of the Acoustical Society of Korea
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• v.42 no.2
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• pp.152-160
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• 2023

Sound barrier walls are the most basic way to cope with noise problems in urban residential environments. The most important acoustic function of sound insulation board is represented by sound transmission loss and sound absorption coefficient. However, Korea has not yet established a standard for measuring the sound absorption rate of sound insulation boards. In addition, even in the European standard, where the overall acoustic standard of soundproofing boards has already been established, the sound absorption rate is applied only to the standard for measuring the sound absorption rate of general building finishing materials, and a separate measurement method considering the characteristics of soundproof walls and soundproofing boards is not presented. The sound absorption coefficient should be evaluated by summing up the energy absorbed into the material as well as the energy transmitted through the material, but the current European standard has a problem in that the transmitted sound energy is not taken into account. In this paper, we reviewed the sound absorption coefficient measurement standards of sound insulation boards currently being presented, and verified the difference between the results and the new measurement method considering transmission sound for sound insulation boards actually used in Korea.