• Journal of Fashion Business
• /
• v.2 no.4
• /
• pp.69-78
• /
• 1998

The purpose of this study was to identify the variables which could characteristics the New Young Generation (NYG), to investigate the relationship between level of NYG characteristics and information searching related to underwear purchasing, and the differences level of the NYG characteristics according to demographic variables (sex, grade, major), and examine the casual relationships of demographic variables (sex, place of growing background, parent's education) and level of the NYG characteristics on information searching related to underwear purchasing. The subjects were 723 college students (female = 324, male=398) living in Seoul and Kyuggi were participated in this study. The NYG is limited to person who born after 1970's. The result of this study were as follows; 1. Five factors of New Young Generation oriented characteristics were identified; F.1 'Info-telecommunication(Info-Telecom)'; F.2 'Family and Marriage'; F.3 'Consumption pattern'; FA 'Self-centered (Individualism)'; F.5 Work/Career oriented. 2. The relationship between the NYG characteristics and information search in underwear purchasing were significanted. 3. In demographic variables, gender, grade, and major were partially significant differences. 4. In male students, the result of the casual relationship between demographic variables with NYG characteristics and the level of the NYG in underwear purchasing showed that grade, background of grownplace, level of parent's education were significanted the high level of info-telecom factor associated with higher grade, city-grown, higher level of parent's education. In conclusion, the result showed that the level of NYG characteristics was significant to male students and specially for grade older students. The background of parent's education level was the another important variables to predicting the NYG characteristics. Finally the higher the NYG characteristics, the more information search in underwear purchasing.

• The Journal of Korean Association of Computer Education
• /
• v.5 no.2
• /
• pp.29-37
• /
• 2002

The purpose of this study is to examine the effects of the level of background knowledge and the metacognition supporting tool (MST) on the learning activities and outcomes in a web problem based learning environment from the theoretical perspectives of PBL (problem-based-learning) in the Web and metacognition. Results suggest that the level of learners' background knowledge could play a slight role in problem oriented learning activities. This was because learning tasks were characterized by ill-structured problems in Web-based problem learning and this sort of learning might have been a somewhat newer experience for the selected students. Providing MST for learners' PBL activities, however, was highly beneficial for learners who practice PBL in Web based learning environments. In addition, for PBL outcomes, variables like problem solution reporting documents. the use of MST had a more positive effect on the lower level learners' background knowledge than the higher level learners'.

• Transactions of the Korean Society for Noise and Vibration Engineering
• /
• v.15 no.8 s.101
• /
• pp.980-987
• /
• 2005

It is very difficult to reduce ambient noise level in the downtown. The best method is to improve the sound amenity of the districts, considering concept of soundscape. This study aims to survey the effect of introducing sound and masking to reduce the background noise level. We carried out the evaluating test for 18 introducing sounds varied S/N ratio(-5, 0, +5) in the city riverside. In these test, subjects evaluated the sound environment with five bipolar adjective scales. It was evaluated that introducing sounds improved the sound environment, and that S/N +5 dB was very appropriate to mask the background noise. But the hearing level was suggested to be S/N 0 dB or less.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2005.11a
• /
• pp.363-366
• /
• 2005

Social survey and auditory experiment on residential noises such as floor impact, air-bome, bathroom, drainage and traffic noises were conducted to investigate the effects of sensitivity and background noise levels on subjective response to residential noises. Results of survey showed that multiple questions for sensitivity to noise have a more power for discrimination against subjective response to noise than single question. It was also found that the correlation between sensitivity and annoyance was relatively low, but the differences in annoyance between sensitivity groups were significant. Result of auditory experiment showed that effects of sensitivity on annoyance were different according to noise type and noise level. It was also shown that the difference in annoyance between the lowest sensitive stoup and the highest sensitive group was significant in low noise level. The effects of background noise on subjective responses to noise was also different according to noise source and noise level, and were significant in low noise level of airborne and drainage noise.

• Korean Journal of Human Ecology
• /
• v.13 no.5
• /
• pp.647-658
• /
• 2004

The purpose of this study was to investigate the relationships between mother's occupational background, their role satisfaction, and their young children's social competence. The subjects of this study were 360 working mothers having 3 to 6-year-old children and 56 teachers of the children drawn from 8 preschools and 7 kindergartens in Cheongju city. The results obtained from this study were summarized as follows : First, mother's occupational background was significantly different according to mother's age, educational level, job type, mother's income, family finances and the existence of a supporter for bringing up children. Second, mother's role satisfaction was significantly different according to mother's income and the existence of a supporter for bringing up children. Third, children's social competence was significantly different according to children's sex, age, mother's age, educational level, job type, mother's income and family finances. Finally, there were significantly meaningful correlations between mother's occupational background, their role satisfaction, and their young children's social competence.

• Korean Journal of Child Studies
• /
• v.35 no.4
• /
• pp.1-15
• /
• 2014

This study examined how child care teachers' background characteristics, self-efficacy and job stress relate to their job satisfaction. Participants were 400 child care teachers in Seoul and Gyeonggi, Korea. Structural equation models were developed based on the authors' hypothesized model, which proposed that teachers' self-efficacy and job stress have a mediating effect in the relationship between teachers' background characteristics and job satisfaction. The results revealed that career directly influenced on self-efficacy and job stress but had no direct effect on job satisfaction. Education level was found to have a direct effect on job stress but had no direct effect on self-efficacy and job satisfaction. Teachers' self-efficacy affected job stress and job satisfaction and job stress affected job satisfaction. Furthermore, self-efficacy mediated the effects of career on job stress and job satisfaction. Additionally, job stress mediated the effects of education level and self-efficacy on job satisfaction. These results suggested that teachers' self-efficacy and job stress were key predictors and mediating variables in the relationship between background characteristics and job satisfaction.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2005.05a
• /
• pp.607-610
• /
• 2005

It is very difficult to reduce traffic noise level in the downtown. The best method is to improve the sound amenity of the districts, considering concept of soundscape. ?his study aims to survey the effect of introducing sound and masking to reduce the background noise level. We carried out the evaluating test for 18 introducing sounds varied S/N ratio(-5, 0, +5) in the city riverside. In these test, subjects evaluated the sound environment with five bipolar adjective scales. It was evaluated that introducing sounds improved the sound environment and that S/N + 5dB was very appropriate to mask the background noise. But the hearing level was suggested to be S/N 0 dB or less.

• Journal of Korean Society for Atmospheric Environment
• /
• v.32 no.4
• /
• pp.360-371
• /
• 2016

The goal of this research is to examine the recent decade-long (2000~2014) trends of national background concentrations over China, Japan, and Korea. Based on the Long-range Transboundary Air Pollutants in Northeast Asia (LTP) project, which is three-party collaboration project among three countries, we investigated the long-term trends of national background $PM_{10}$ concentrations in three countries over the recent 15 years, including the 2008 Beijing Olympic Game period. In accordance with the agreement among three countries, a total of 8 national background sites: three national background monitoring sites in China (2 sites in Dalian, and 1 in Xiamen), three sites in Korea (Ganghwa, Gosan, and Taean), and two sites in Japan (Oki and Rishiri), were chosen for the trend analysis. The results showed that Chinese background concentration recorded the highest level overall. However, the rapid declining recent trends of annual median ($50^{th}$-percentile) values were surprisingly detected since 2006 or 2007 in every site in China, with the most rapidly decreasing rate (- $18.6{\pm}10.3%$/year) over 2006~2007, and the second most rapidly decreasing rate (- $18.0{\pm}1.5%$/year) over 2007~2008. Based on the previous statistical literature, we concluded that this declining trends were due to the emission reduction of $PM_{10}$ concentrations in China for 2008 Beijing Olympic Game. In Korea, Ganghwa was also showing the decreasing trends over the recent years since 2006, which is also well accorded with the decreasing period of Chinese background concentrations. Taean also implied some impact of Beijing Olympic Game, showing small but detectable decreasing trends, while Gosan showed the increasing tendencies probably due to the near-urban influences. However, since 2012, most sites in both China and Korea showed strong increasing trends, undoubtedly implying the increasement of both emission in China and its long-range transport process toward Korea. Two sites in Japan, Oki and Rishiri recorded the lowest level of $PM_{10}$ level during whole period with the smallest deviations of measurements. Other discussions including the decade-long trends of $5^{th}$, $10^{th}$, $25^{th}$, $50^{th}$, $75^{th}$, $90^{th}$, $95^{th}$-percentiles of $PM_{10}$ background concentrations in three countries were also comparatively addressed here.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.10 no.1
• /
• pp.19-26
• /
• 1986

The purpose of this study is to investigate the relationship between clothing behaviors, background and popularity for a group of junior-high school girls in seoul, Korea. background : father's education, type of housing and economic level. popularity : Sociometric test. For statistical analyses of the data from 446 respondents, F-test, t-test, $x^2$-test, M. and S.D. were used. The findings were as follows : 1. (1) Father's education correlated significantly with $\ulcorner$Awareness$\lrcorner$at p<.05, and with $\ulcorner$satisfaction$\lrcorner$ at P<.005. (2) Type of housing correlated significantly with $\ulcorner$conformity$\lrcorner$-at p<.005, and with significantly $\ulcorner$satisfaction$\lrcorner$ at p<.01. (3) Economic level correlated significantly $\ulcorner$conformity$\lrcorner$ at p<.05, and with significantly $\ulcorner$satisfaction$\lrcorner$ at p<.005. 2. A significantly positive relationship was found between popularity and background. The higher the economic level and father's education are, the more popular are they- in their classroom. They also were found to have their own houses. On the contrary, the less the economic level and father's education are, the less popular are they in their classroom. They, in most cases, live in rent houses. 3. A positive relationship was not found between popularity and clothing behaviors.

• Journal of the Ergonomics Society of Korea
• /
• v.27 no.3
• /
• pp.15-22
• /
• 2008

The purpose of this study was to define the effects of noise and background music on the trunk muscle fatigue during dynamic lifting and lowering tasks. Six healthy male subjects with no prior history of low back disorders participated in this study. The participants were exposed to two levels of background noise such as 40dB noise and 90dB noise and three levels of background music such as no music, slow music, and fast music. Six different combinations of background noise and background music were played while the participants were performing the lifting task at 15% level of Maximum Voluntary Contraction. Electromyography signals from six muscles were collected and fatigue levels were analyzed quantitatively. In results, the 90dB noise increased trunk muscle fatigue and slowed down the recovery. The trunk muscle fatigue was the lowest when the fast music was played for as background. After recovery, the 90dB noise increased trunk muscle fatigue. The trunk muscle fatigue was the lowest when the slow music was played for as background. The results can be useful to manage the cumulative fatigue of trunk muscles due to background noise and music during repetitive lifting and lowering tasks in industry.