• Journal of Distribution Science
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• v.18 no.1
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• pp.5-13
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• 2020

Purpose: The purpose of this study is to examine the growth and change process of Korean cosmetic market that has grown more than three times since 2000. It also examined how the growth and decline of the cosmetics brands are related to the change of the cosmetic distribution structure. Research methodology: This study tried to classify the change of the Korean cosmetics market into four stages based on the market sales information. It analyzed the sales information of Korean cosmetic companies and the relationship with the sales of the brands by distribution channel. Results: One-brand store channel had played a leading role in the market growth, and multi-brand stores have grown and a number of brands also grew through that channel since 2013. Since 2016, multi-brand stores have continued to grow and have dominated the market beyond one-brand store channel. Conclusions: The changes in sales of domestic cosmetics companies have been classified based on the distribution channel type in four stages: the emergence of one-brand store, the growth of one-brand store channel, the growth of multi-brand store channel, and the decline of one-brand store channel. In conclusion, multi-brand store channels have recently grown in the Korean cosmetics market, and this trend is expected to continue.

• International Journal of Contents
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• v.18 no.1
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• pp.76-84
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• 2022

Tidal power generation plays a critical role in reducing greenhouse gas emissions. It uses a tidal force generated by gravitational force between the moon, the earth, and the sun. The change of seawater height generates the tide-generating force, and the magnitude of the change is the tide level. The tide level change has the same period as the tide-generating force twice a day, every 29.5 days, every year, and every 18.6 years. Sihwa Lake Tidal Power Station is Korea's first tidal power plant that began commercial power generation in August 2011 and has been accumulating a large volume of data on electricity production, power generation sales, sluice displacement, and tide levels. The purpose of this paper was to analyze the impact of the inefficiency factors affecting production and the tidal level change on tidal power generation and their characteristics using Sihwa Lake Tidal Power's operational performance data. Throughout this paper we show that tidal power generating operation is accurately predicting the trends of magnitude of tidal force to be periodical for each day. determining the drop to initiate the water turbine generator factoring the constraints on the operation of Sihwa Lake, and reflecting the water discharge through the floodgate and water turbine during the standby mode in the power generation plan to be in the optimal condition until the initiation of the next power generation can maximize power generation.

• Journal of Climate Change Research
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• v.7 no.1
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• pp.41-48
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• 2016

Korea has introduced Korea Emissions Trading Scheme (Korea ETS) since 2015. However, not many companies voluntarily participate in the emissions trading. The goal of this paper is to provide the way to improve the Korea ETS. This study compares the Korea ETS with EU Emissions Trading System, which has been practiced for a decade, and suggests three strategies to activate the Korea Emissions Trading Scheme. The first thing is to encourage more companies to participate in the emissions trading since the number of companies in the emissions trading in Korea is quite limited compared with that of EU. The second thing is to activate the trading of Korean Credit Unit in order to stimulate various emission reduction mechanisms. Currently, the most of the trading in the emissions market is through the Korean Allowance Unit. The third thing is to establish concrete measures to continuously improve the Korea ETS. A comprehensive evaluation of the Korea ETS is needed along with the ongoing convergence with the associated comments. The improvement of Korea ETS would be one of the most efficient ways to compete the climate change, and would also play a role to raise the status of Korea.

• East Asian mathematical journal
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• v.39 no.2
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• pp.183-198
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• 2023

Classroom observation instruments are often used to evaluate teachers' instructional practices and provide feedback to inform interventions or research studies, or professional development efforts. While designed as research tools, many classroom observation instruments can provide important information to support teachers' learning and instructional change by providing a focus for formative assessment or self-evaluation of practice. In this paper, we review two classroom observation tools and the protocols for their use with an implementation example for one of the tools. These tools are more foreign to the field compared to others but have features that might serve as affordances in relation to the purposes of a specific investigation.

• Childhood Kidney Diseases
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• v.7 no.1
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• pp.16-22
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• 2003

Purpose : Minimal Change Disease(MCD) is the most common primary nephrotic syndrome in children. Some suggested that tumor necrosis factor-${\alpha}$ ($TNF-{\alpha}$) are involved in the pathogenesis of MCD. This study was done to see the changes of plasma and urinary $TNF-{\alpha}$, and their effects on the permeability of glomerular basement membrane. Methods : Study patients consisted of 19 biopsy-proven MCD children aged 2-15 years old. Both plasma and urinary $TNF-{\alpha}$ were measured. Employing the Millicell system, $TNF-{\alpha}$ were screened for the permeability factors. Results : Urinary $TNF-{\alpha}$ during relapse was significantly increased(P<0.01). No significant change was seen in the plasma $TNF-{\alpha}$ during relapse when compared to those in remission and the healthy controls. Furthermore, in the in vitro Millicell system, $TNF-{\alpha}$ did not produce a significant change in albumin permeability. Conclusion : Therefore, it seems that $TNF-{\alpha}$ may not play a disease-specific role in the pathogenesis of MCD.

• Journal of Digital Convergence
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• v.18 no.6
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• pp.133-141
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• 2020

Currently, companies are focusing on how they make their members have change-oriented organizational citizen behavior in the era of fierce competition due to the 4th industrial revolution. Therefore, this study verified how the flexible culture of adhocracy-clan plays a role in positive psychological capital and change-oriented organizational citizen behavior. A survey was conducted for employees in companies located in Daejeon-si, Sejong-si, Chungcheongnam-do, and Chungcheongbuk-do, and 394 valid questionnaires were used for analysis. The concrete analysis results are obtained from the study as follows. First, among the flexible cultures of adhocracy-clan, the innovation culture was found to have a significant effect on change-oriented organizational citizenship behavior while relationship culture was found to not directly affect change-oriented organizational citizenship behavior. Second, the flexible cultures of adhocracy-clan, the innovation culture was found to have a significant effect on the positive psychological capital. Third, the positive psychological capital was found to have a significant effect on the change-oriented organizational citizenship behavior. Fourth, the positive psychological capital was found to play a mediating role in the relation between the recognition of flexible cultures of adhocracy-clan and the change-oriented organizational citizenship behavior. Therefore, it can be said to find out the fact that the change-oriented organizational citizen behavior can appear under the fierce competition as nowadays only when the organization should establish the organization culture of innovation-relation or the members are in the positive psychological state. We expect that the future study on the type of subculture and new organizational citizen behavior will be made in the manner of classifying the unit of organizational culture into a headquarter or team for measurement.

• Journal of the Korean Society of Clothing and Textiles
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• v.33 no.2
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• pp.200-212
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• 2009

Since the late of 20C, contemporary fashion have becoming enlargement between role and function of fashion through the combination and the deconstruction among various different spheres. Because multi-functional and trans-formal fashion transforms and extends original space and role toward any other fields through the morphologic and structural combination, this has been freed form the representational function pursuing more simple morphologic imitation, and becomes to change the space that is able to 'becoming' of Jill Deleuze. This paper intends to make a comparative study between the representation phenomenon about simple morphologic imitation of existing fashion design, and the becoming phenomenon of fashion focused on the change toward any other different object. This studies' conclusion as follows. 1) First representation imitates a lot of nature forms that are able to be restored any fixed form and picture. 2) Second representation is the representation of representation that re-imitates imitated object and art work. 3) Ontalogical becoming is classified with depaysement, self-presentation of fashion, morphing, and becoming the nature as a element.

• Korean Parent-Child Health Journal
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• v.4 no.2
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• pp.43-55
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• 2002

Relationship between parent and children is basic relation and initial relationship. It is essential research to explore relationship between parent's role satisfaction and children's health promotion in rapidly changing social situation influence parenting attitude. The purpose of this research to explore first mother's parenting belief, communication, filial piety by indepth interview and literature review. Method of research is literature review (books and articles) and Web site researching (home page) and contacted two mothers to do individual interview. Data was collected and analysed according to the objectives. The result of this study as follows. 1) It was problem that is child rearing and child education due to working parents. 2) It was discussed parent's belief regarding child rearing. The belief was influence by culture, social economic status, family friend and internet, advise of professionals. The subjects of this study was influenced by family, friend and internet Web site. 3) Parent-child communication was reviewed and discussed about influence of masmedia and early education system. Children's level of language development was rapidly improved by role play and read the book with mother. 4) It was discussed concept of filial piety. Parent was not expected filial piety from their children. Parent thought that they already received filial piety from their children, because children gave them pleasure and happiness during growing process. Parents want their children become mature person and adapt to informative changing society. Finally, it is needed further interdisciplinary study for parent-child health promotion and growth and development in rapidly changing society.

• Journal of the Korean Society for Library and Information Science
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• v.36 no.3
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• pp.5-23
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• 2002

With the rapid change of information environment, this study suggests role models and strategies for the university library in Korea based on the subject specialization. By analyzing the current situation and problems of university library, this research presents various directions for the subject specialization. Major research issues are (1) university library's subject specialization directions, models, and factors, (2) subject specialized librarian' s role and education system, (3) basic framework for customized information service and user education, (4) enhancement of subject specialization through subject gateway, (5) academic information sharing system.

• The Korean Journal of Physiology and Pharmacology
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• v.13 no.3
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• pp.241-249
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• 2009

Although extracellular $Ca^{2+}$ entry through the voltage-dependent $Ca^{2+}$ channels plays an important role in the spontaneous phasic contractions of the pregnant rat myometrium, the role of the T-type $Ca^{2+}$ channels has yet to be fully identified. The aim of this study was to investigate the role of the T-type $Ca^{2+}$ channel in the spontaneous phasic contractions of the rat myometrium. Spontaneous phasic contractions and $[Ca^{2+}]_i$ were measured simultaneously in the longitudinal strips of female Sprague-Dawley rats late in their pregnancy (on day 18 ${\sim}$ 20 of gestation: term=22 days). The expression of T-type $Ca^{2+}$ channel mRNAs or protein levels was measured. Cumulative addition of low concentrations (< 1 ${\mu}M$) of nifedipine, a L-type $Ca^{2+}$ channel blocker, produced a decrease in the amplitude of the spontaneous $Ca^{2+}$ transients and contractions with no significant change in frequency. The mRNAs and proteins encoding two subunits (${\alpha}$ 1G, ${\alpha}$ 1H) of the T-type $Ca^{2+}$ channels were expressed in longitudinal muscle layer of rat myometrium. Cumulative addition of mibefradil, NNC 55-0396 or nickel induced a concentration-dependent inhibition of the amplitude and frequency of the spontaneous $Ca^{2+}$ transients and contractions. Mibefradil, NNC 55-0396 or nickel also attenuated the slope of rising phase of spontaneous $Ca^{2+}$ transients consistent with the reduction of the frequency. It is concluded that T-type $Ca^{2+}$ channels are expressed in the pregnant rat myometrium and may play a key role for the regulation of the frequency of spontaneous phasic contractions.