• Title/Summary/Keyword: College of Human Ecology

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Sound Absorption Property of Traditional Korean Natural Wallpaper (Hanji)

  • Jang, Eun-Suk;Kang, Chun-Won;Kang, Ho-Yang;Jang, Sang-Sik
    • Journal of the Korean Wood Science and Technology
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    • v.46 no.6
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    • pp.703-712
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    • 2018
  • The sound absorption property, hand feel, air permeability and pore size of 25 kinds of traditional Korean natural wallpapers (Hanji) were measured and analyzed in this study. The sound absorption rate of Hanji became larger with increasing of frequency beginning from 3.2 kHz, reached 2 times in frequency range of nearby 4 kHz. The sound absorption rate of Hanji was increased as the permeability was lowered and the pore size was decreased. The sound absorption property of Hanji wallpaper could be improved by manufacturing process such as super calendering process.

Measurement of Sound Transmission Loss in a Sound Barrier Filled with the Rice-Straw Particles by the Transfer Function and Laboratory Measurement Methods

  • Kang, Chun-Won;Jang, Eun-Suk;Jang, Sang-Sik;Kang, Ho-Yang
    • Journal of the Korean Wood Science and Technology
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    • v.46 no.4
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    • pp.338-345
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    • 2018
  • The sound insulation capacity of a barrier is indicated by its transmission loss. In this study, the sound transmission loss of a sound barrier filled with rice-straw particles was measured by the transfer function method and a laboratory measurement method. The results of the two measurements were compared. The transmission losses measured by the two methods were similar above a frequency of 500 Hz. The loss increased greatly upon the introduction of a plywood to the sound barrier. The results of this study are expected to be used to design sound barriers for roads.

The Effects of a group counseling program for career exploration on college students' self-efficacy (대학생을 위한 진로탐색 집단상담 프로그램의 효과연구 - 학부 신입생을 대상으로 -)

  • Cho, Hea-Joung;Kim, Mill-Yang
    • Korean Journal of Human Ecology
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    • v.15 no.2
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    • pp.353-362
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    • 2006
  • The purpose of this study is to develop a group counseling program for career exploration and to explore its effects on college students' self-efficacy. Main program activities consisted of 8-week sessions. Equivalent control group pretest-posttest design was employed for this study. 40 college students voluntarily participated in a group counseling of career exploration. Another 40 students were selected for a control group of this study design. The self-efficacy (23 items) was administered to both the experimental and the control groups before and after the 8-week treatments. The results of this research showed that the differences (program effects) of the experimental group in the scale were higher than those of the control group. In conclusion, a group counseling program for the career exploration had significant effects on the career exploration and self-efficacy of college students.

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Development of Self-efficacy Enhancement Program for the Adolescent (청소년기 자기효능감 향상 프로그램 개발연구)

  • Cho, Hea-Joung;Lee, Jung-Yeon;Lee, Chang-Sook
    • Korean Journal of Human Ecology
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    • v.13 no.3
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    • pp.345-359
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    • 2004
  • Self-efficacy is an important variable determining adolescents' behavior. This study was designed to develope a program for improving teens' self-efficacy. The goal of this program was as follows: (1) to improve self-efficacy by enlarge self-knowledge through in- depth search of one's own inner world, (2) to correct one's inferiority impeding one's inner growth, (3) to improve self-efficacy in family relationship, peer relationship, and academic achievement areas. This program consisted of total 6 sessions, supplemented with interpersonal relationships regarding positive family functioning and the impact of peer groups which were found out in recent researches. Specific strategies such as verbal persuasion, mastery experience, vicarious experience and affective arousal were used.

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