• Korean Journal of Pharmacognosy
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• v.50 no.3
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• pp.205-218
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• 2019

This study was conducted to investigate the toxicity symptoms and approximate lethal dose (ALD) of Oplopanax elatus (Nakai) Nakai hydrothermal extract powder by single oral dose toxicity and 4 weeks of repeated oral dose determination. The Sprague-Dawley (SD) male and female rats were treated with 1,250 (low- dosage group), 2,500 (medium- dosage group) and 5,000 (high- dosage group) mg/kg. In the single oral dose toxicity test, no dead animals and toxic symptoms were observed during the experiment. And there were no related with anomalies in normal weight changes and autopsy results. In the four-week repeated oral dose determination test, no death animals and toxicity symptoms were observed during the experiment, and there were no abnormal results in weight changes, feed and negative intake measurements. Results of eye examination, urinalysis, hematological values and serum biochemical values, gross findings and absolute organ were not of singularity. These result demonstrated that no toxic symptoms were observed by the test substance Oplopanax elatus (Nakai) Nakai hydrothermal extract powder under this test condition, and the non-toxic content is determined to be 5,000 mg/kg/day.

• Journal of the Korean Recycled Construction Resources Institute
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• v.8 no.4
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• pp.562-570
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• 2020

This study explores manufacturing technology and basic properties of high strength cement composites at 2,000kg/㎥ of specific weight. It is suggested that lightweight-high strength cement composites can be produced by substituting silica sand in ulta-high performance concrete mixture with lightweight materials such as solid bubbles and lightweight fine aggregates. The 28-day compressive strengths of cement composites with solid bubbles were from 116MPa to 141MPa at below 2.0g/㎤ of unit density while the cement composites with lightweight aggregates possessed lower compressive strength and higher unit density. The specific weight calculated from mixture proportions did not have significant difference with unit density of hardened cement composites, indicating that unit density of hardened cement composites can be estimated from the specific weight in mixture proportions.

• Journal of the Korean Recycled Construction Resources Institute
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• v.9 no.2
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• pp.117-126
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• 2021

An experimental study was carried out to investigate the applicability of cement-based materials for green soil which is a soil for promoting plant growth. The results show that the shear strength of the green soil mixed with gypsum cement (No.3) was low, but the hardness (23.6mm) and pH value (7.4) was most suitable for the vegetation environment. In addition, the initial vegetation germination of green soil, which improved performance by adding a moisturizer, was slower than that of general green soil, and the conductivity value tended to be slightly higher. On the other hand, the slope adhesion of advanced green soil was high, and it was found that the plant growth rate and the regeneration capacity were superior after time passed.

• Journal of the Korean Recycled Construction Resources Institute
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• v.10 no.4
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• pp.411-419
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• 2022

This study conducted acute oral toxicity test and acute dermal toxicity test to evaluate the toxicity of lightweight and high-strength cement composite containing carbon nanotube. It was compared with the toxicity of ordinary concrete that did not contain carbon nanotube. Both lightweight and high-strength cement composite and ordinary concrete were categorized in GHS category 5 as a result of acute oral toxicity test. In addition, no toxic symproms were observed during the acute dermal toxicity test in all specimens, concluding that those were judged to correspond to GHS category 5/unclassified.

• Korea Trade Review
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• v.42 no.6
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• pp.1-25
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• 2017

This is a comparative and analytical study which comprises of the analysis of the rules of the seller's liability for non-conforming goods of four legal systems under the CISG and the CESL. A purpose of this study is to examine all the rules as to, first, the concept and the nature of the seller's duty to deliver the goods in conformity with the contract, second, the contents of the seller's duty to deliver the goods in conformity with the contract, third, the time when the goods must be in conformity with the contract and the cases where the seller is exempted from his liability for non-conforming goods. Another purpose is to compare the rules of the CISG with those of the CESL, and to evaluate them in light of the discipline of comparative law. This is for the purpose of facilitating the systematic development and reform of one jurisdiction by any solution from the other jurisdiction found by the comparative study. In addition, this study provides legal and practical advice to the contracting parties when they intend to use one of those regimes in their contract as a governing law.

• The Research Journal of the Costume Culture
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• v.7 no.3
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• pp.93-107
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• 1999

Elderly population of Korea has been significantly increasing, therefore, social and economical influence of the elderly people has been increasing, too. Recently, research regarding elderly people is important because many elderly men take care of their appearance and clothing, and clothing plays an important role in everyday life. The purpose of this study is to investigate the clothing behavior of men aged 55 years and older who were residents of Seoul. The data were collected with a interview and self-administered questionnaire at various places. The importance of various factors on clothing behavior is different. 2. Age has a negative relationship with conformity, but a positive relationship with aesthetics and satisfaction of clothing. Allowance has a positive relationship with all clothing behaviors factors excepts conformity. 3. Life satisfaction has a positive relationship with education and allowance, also, life satisfaction of occupation group is higher than no occupation group is higher than no occupation group. 4. Appearance satisfaction has not a significant relationships with age, but, has a positive relationship with education. 5. There are positive relationships between not only life satisfaction and clothing behavior factors, but also appearance satisfaction and clothing behavior factors except conformity.

• Journal of the Korean Home Economics Association
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• v.38 no.9
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• pp.131-142
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• 2000

This paper is made an analysis as to how much influence is affected to the residential satisfaction by information search and expectancy conformity/nonconformity. The above mentioned analysis results in that information search and expectancy conformity/nonconformity appear to be influential factors to explain the residential satisfaction after purchase. Especially, the more the expectancy of pre-purchase and the performance of post-purchase equal, the higher the residential satisfaction. In addition, even if a slight difference emerges in the domain of the residential satisfaction, it appears that the more information search is conducted, the higher the residential satisfaction and information from salesman or reference group affect on the expectancy conformity/nonconformity. When purchasing housing, to search more information shows that the expectancy of pre-purchase gets close to the performance of the post-purchase, that is to say, to the positive residential satisfaction.

• International Journal of Advanced Culture Technology
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• v.5 no.2
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• pp.1-8
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• 2017

It is usually that some people who did not plan to buy anything walk into e-mart, but walk out with something in hands. Obviously, these people were stimulated and the result is purchasing something maybe are not really needed. As a consumer, sometimes we are interested in what somebody else is using, and sometimes we cannot help trying a kind of new drink when we found many of people around are drinking it. In this paper, conformity psychology's effect in the advertisement will be checked in the hope of helping improve the advertisement effectiveness.

• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.7
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• pp.1215-1226
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• 2001

The purpose of this study is to develop a model of adolescent's conspicuous consumption on clothes. For this study, questionnaires were administered to 400 adolescents in Kwang-Ju. Employing a sample of 283, data were analyzed by using the structural equation model of the Lisrel analysis, in addition to cronbach's alpha coefficient for reliability and confirmatory factor analysis for validity. The results of this study was found that a conceptual model for adolescent's conspicuous consumption on clothes was judged to provide acceptable goodness of fit. Specifically, materialism and clothing conformity had a direct effect on conspicuous consumption on clothes, and materialism, hedonic shopping orientation and clothing interests had a indirect effect on conspicuous consumption on clothes. The results indicated that clothing conformity had important influence on conspicuous consumption and its influence on adolescent's conspicuous consumption was mediated by materialism, hedonic shipping orientation and clothing interests.

• Journal of the Korean Society of Clothing and Textiles
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• v.23 no.3
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• pp.471-482
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• 1999

This study examined the effect of abolition of school uniform on personality. The subjects were 317 boys(mean age : 18) and 312 girls(mean age : 18) in third grade of high school. the subjects were selected from 4 uniform high schools and 4 free-choice wearing clothes high school in which were situated at north and south part of Han-River in Seoul. They wee administered with the following questionnaires to measure the creativity individuality self-efficacy. conformity of behaviour conformity of attitude autonomy and responsibility. Results indicated that (1) the effect of abolition of school uniform on personality must be considered in the moderator effect of the preferred clothes of students. These results were discussed and its implication and following study were suggested.