• 산업보건소식
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• no.45
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• pp.19-21
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• 1987

• 산업보건소식
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• no.45
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• pp.5-14
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• 1987

• LP가스
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• v.23 no.4
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• pp.4-4
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• 2011

• The Monthly Diabetes
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• s.200
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• pp.26-30
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• 2006

• Journal of Korea Game Society
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• v.14 no.1
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• pp.69-80
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• 2014

The government enacted shutdown policy in the fall of 2011 to prevent game addition of youth. Now shut down policy has been implemented about 3 years. We surveyed gamers' and non-gamers' perception about shut down system in 3 years. So this article tried to analysis the perception change of gamers and non-gamers about shut down policy. In result of this analysis, the evaluations of shutdown policy has decreased. Both gamer and non-gamer have the thought against the shot down policy. Among 2011-2012, non-gamer's perception on shut down policy had not changed much. But among 2012-2013, non-gamers' perception as well as gamer's perception has changed against shut down policy. This result showed that we should re-consider the effect and necessity of the shut down policy and whether the government should maintain the shut down policy.

• Journal of the Korea Concrete Institute
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• v.27 no.5
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• pp.531-539
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• 2015

Properties of normal-strength mortar containing coarsely-crushed coal bottom ash considering standard particle size distribution of fine aggregate were investigated. Mortar containing raw bottom ash was applied as a reference. By crushing the bottom ash with a particle size larger than fine binder but smaller than fine aggregates, i.e., coarse-crushing, water absorption and specific gravity of the particles could be controlled as similar levels to those of natural fine aggregates. Workability and strength of the mortar were not changed and even increased when the coarsely-crushed bottom ash was added considering standard particle size distribution in Standard Specification for Concrete, while those were decreased when raw bottom ash was added without any treatment. When a replacement ratio of coarsely-crushed bottom ash was less than 30 vol.%, there were no significant decrease in dynamic modulus of elasticity and dry shrinkage of the mortar.

• The Journal of the Korea Contents Association
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• v.17 no.4
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• pp.561-568
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• 2017

The purpose of this study was to analyze effectiveness of Jeonnam Innovation School based on comparison of 'democratic school management,' 'curriculum,' 'learning community,' and 'satisfaction with education,' between general schools and innovation schools. For the study, a survey was conducted among 24 innovation schools and 24 general schools, with 912 students of the innovation schools, 913 students of the general schools, 99 teachers of the innovation schools, 99 teachers of the general schools, 101 parents of the innovation schools, and 103 parents of the general schools as respondents. In the result, innovation schools showed higher effectiveness than general schools, especially in the middle schools in comparison to the elementary schools. The difference in effectiveness between innovation schools and general schools was greatest in 'democratic changes of the school' and 'satisfaction with education' according to the responses from the teachers, students, and parents.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.8
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• pp.475-484
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• 2020

This monograph was probed effectively by using practical methods in a subjectivity study that was accessible in depth, departing from bygone behavior of functional quantity analysis of awareness and the opinions of young people about the general (public) model of TV advertising. The perception patterns resolved in this study sorted out four types in a Q-methodology. The result is divided as follows: 1 [(N=7): Advertising Consensus Type], 2 [(N=7): Advertising Negative Type], 3 [(N=5): Advertising Purchasing Reduction Type], and 4 [(N=1): Advertising Persuasion Orientation Type]. As such, we found very different types all over. Finally, this study reviews subjective acceptance as to the type of model reception with regard to general TV advertising, offering a developmental suggestion on the issue, and an agenda about it.

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.557-567
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• 2018

This paper studies the relationship between general investors' allotment ratio and underpricing for the companies that were newly listed in KOSDAQ market after the 20% rule, from March 2004 to December 2013, by empirical analysis. It is shown that the excess allotment ratio over 20% has a strong explanatory power for underpricing ratio under the 1% significance level. Furthermore, the general investors' allotment ratio is a significant explanatory variable of underpricing ratio under the 5% significance level. There are many hypotheses about underpricing, however, if underpricing is evident with high allocation ratio for general investors, it can be regarded as a signal of company's confidence in earnings after listing. In conclusion, this study reveals that general investors' allotment ratio can be used as a major explanatory variable that has a significant effect on the degree of undervaluation in the IPO market.

• Food Science and Preservation
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• v.16 no.2
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• pp.192-197
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• 2009

This study investigated the quality characteristics of Chun-dubu(whole soybean curd) to which ginseng powder was added. The overall composition of the material was moisture $80.11{\pm}0.32%$, crude protein $6.04{\pm}0.007%$, crude fat $5.85{\pm}0.007%$, and crude ash $1.06{\pm}0.014%$(all w/w). The total microorganism count was 3.57 log CFU/g, whereas that of control Chun-dubu was 4.82 log CFU/g after 15 days of storage at $5^{\circ}C$. No coliforms were detected in Chun-dubu with added ginseng powder, whereas the control Chun-dubu coliform count was 3.52 log CFU/g after 15 days of storage at $5^{\circ}C$. When textural properties were considered, all of hardness, springiness, and chewiness rose during storage at $5^{\circ}C$. The sensory characteristics of Chun-dubu with added ginseng powder rated higher(from 5.80 to 6.10) than those of control Chun-dubu.