• Journal of Electrical Engineering and Technology
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• v.13 no.3
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• pp.1355-1362
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• 2018

In order to obtain a better understanding of the ageing process of the field composite insulators, it is necessary to explore a quantitative-valuation method for the aging state evaluation. And the linear relationship between volume resistivity and temperature is proposed. In this paper, the composite insulators with different lengths of operating lives from two manufacturers were tested. The relationship between trap characteristics and volume resistivity-temperature characteristics were analyzed based on Thermal Stimulated Current (TSC), volume resistivity-temperature test, Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Furthermore, the application of trap characteristics in the quantitative evaluation of aging state of composite insulators was discussed. The results showed that there was a general negative correlation between the relative variation ratio of trap charges and the volume resistivity-temperature characteristics. Meanwhile, the physicochemical properties would change with the aging time, which would result in the increasing of electron traps. Combined with the TSC and volume resistivity test results, the trap characteristic thresholds which indicated the serious age of the composite insulators had been proposed.

• Journal of Information Technology Applications and Management
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• v.28 no.4
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• pp.1-11
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• 2021

The purpose of this study is to provide the basic information related to electronic picture books and implications for the development of high-quality in-home child care service programs by examining the perceptions and actual conditions of electronic picture books. A survey was conducted with 216 in-home childcare workers from the one Healthy Family Support Center who participated in the workshop on electronic picture books and 161 students from the Department of Early Childhood Education at two Universities as a comparison group. The findings are as follows. First, there was no difference between the two groups in recognition of ICT competencies and satisfaction with electronic picture books. Second, both groups viewed electronic picture books are effective in preparing for the information age and very positive in providing electronic picture books. Third, the valuation of electronic picture books in both groups was higher than that of paper picture books. Fourth, there was no significant difference between the two groups in valuing e-picture books by ICT competence. The results of this study provide implications for the development of systematic educational programs to enhance the job performance of in-home child providers, which will be expanded in the future, by examining ICT competencies, e-picture book actual utilization, and recognition between the in-home childcare providers and ECE students.

• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.548-560
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• 2021

This study estimates the amount of willingness to pay of the general public by applying the contingent value method to the Korea Program for International cooperation in Agricultural technology(KOPIA), a representative project of the Rural Development Administration. Prior to measuring the amount of willingness to pay for the KOPIA project, a survey of the perception of agriculture and rural areas and respondents' basic perception of public development assistance showed a positive perception of official development assistance in general. In particular, many respondents said that aid from the international community in the past contributed to Korea's economic and social development along with the importance of the international community helping the poor in underdeveloped countries. As a result of estimating the acceptance probability regression model by including the public awareness as a variable, the higher the income of the respondents and the more positive the perception of public development aid, the higher the amount of willingness to pay. The average annual payment amount per household derived from the acceptance probability regression model was estimated to be about 30,729 won.Based on the results of this analysis, several policy implications related to the public development aid policy of Korea were presented.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.9
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• pp.293-304
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• 2020

The study reveals the extent of changes in selective financial numbers caused by fixed asset revaluation (FAR) and explores whether there was a management motive for playing the financial numbers game through using the FAR model. The data set consists of a sample of 142 listed companies purposively selected from 13 industries. The study found a significant impact of FAR on the net asset value (NAV), fixed asset intensity (FAI), and debt-to-equity ratio (DER). These findings are supported by the political cost and the debt covenant hypotheses. The study also observed a high growth of fixed assets by 9.5% to 14,603.8% resulting from FAR. More revealing is that FAR increased NAV in revaluer companies by an average of 427.20% as compared to 6.86% in non-revaluer companies. Even some companies with negative NAV took resort on FAR to show positive NAV. Besides, revaluer companies managed to reduce their DER by 70.45% as opposed to an increase of 8.45% in non-revaluer companies. Hence, the study concludes that most of the publicly-listed companies are involved in financial numbers game by the use of the FAR model. To build confidence among investors, companies should practice FAR rightly and disclose related information to help reduce information asymmetry.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2009.04a
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• pp.211-216
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• 2009

Bidding systems in the domestic public construction work have been amended many times since the lowest-bidding system was implemented in 1951. However, this hasn't had much success. Competition in technical development among companies has declined as the contracts for buildings are given to company which submits the lowest price without considering traits of projects. In addition, as the construction market turns to the limitless competition system due to FTA(Free Trade Agreement), advanced techniques are needed to promote the national competitive power. Considering the needs of the times, Korean government announced that "Best Value Contract (Design-Bid-Build)" and "Bridging Contracts (Design-Build)" are included to 4 existing bidding systems in October 2007. Thus this study aims to suggest devised the evaluation criteria including major items for evaluating bidders, in order to establish and revitalize the best-value bid system successfully.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.15 no.6
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• pp.1-26
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• 2020

The term 'Unicorns' in the corporate ecosystem was firstly introduced by Aileen Lee in 2013. It has been actively discussed in South Korea particularly to compare the level of the 'start-up ecosystem' from a global perspective. Accordingly, the Korean government has recently set a policy goal 'to nurture 20 Korean unicorn companies by 2022'. While the phenomenon of 'Unicorn Club Company' has been brought to the level of policy objectives and spread more widely to the public, existing academic research to understand its substantial and underlying implications has been insufficient. First, in this study, the characteristics of 479 'Unicorn Club' companies in 2019 were analyzed in-depth. Previous research has focused on the general status and trend by analyzing the number of unicorn companies by country and industry classifications. However, this study conducted a qualitative exploratory analysis by investigating descriptive statistics about unicorn companies, including their investors, while providing case studies. Also, cluster analysis, ANOVA, and multi-level regression were employed for quantitative exploration. The characteristics of individual companies were examined based on the "ERIS Model (Entrepreneur - Industry(Market) - Resource - Strategy Model)". Secondly, factors influencing its valuations were examined in connection with the previously analyzed characteristic variables and investor characteristics. Finally, based on these, the future direction of the "Unicorn Phenomenon" from the perspective of "Enterprise Ecosystem" and productively using it from the perspective of the public policy is suggested.

• Health Policy and Management
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• v.14 no.2
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• pp.58-77
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• 2004

Cost containment has become high political issues since financial crisis of the Korean Health Insurance fund in 2000. Korean Government has developed and implemented several measures to reduce the pharmaceutical expenditures. Pharmaceutical economic evaluation can be a tool in decision to allocate scare resource efficiently. In order to increase the quality of economic evaluation for pharmaceuticals, the Korean Health Insurance Review Agency(HIRA) is considering the development of a guideline for economic evaluation. It mandates that pharmaceutical companies could submit the result of an economic evaluation when demanding reimbursement of new pharmaceutical drugs. The purpose of this study is to provide a critical review of the economic evaluations of health care technologies published in the Korean context whether they have been performed according to current guidelines and therefore whether their results are directly useful for decision making. We found there exist important problems and deviation from, good practice' both in the general features of the studies, like the study design and perspective, and in terms of cost measurement and valuation. There are needs to develop clear guidelines and to educate and train researchers in performing economic evaluations.

• Journal of the Korean Society of Industry Convergence
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• v.2 no.1
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• pp.131-137
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• 1999

It is very important that we try to keep our traditional historical assets in the original form for a long time. Artificial grotto has a very long and old history of about 1250 years in Korea. Yet, for the past several years there are many factors ruinning this historical treasure. Recently, specialist are new scientifically examining artificial grotto and evaluating its current condition. If you only judge these historical assets from the exterior structural environmental approach your scientific conclusion will not be complete. No one has studied artificial grotto from the viewpoint of indoor climate environmental. Therefore, I have surveyed and prepared a report of investigation as well as countermeasure so to understand the impact of indoor climate environmental on artificial grotto. The purpose of this paper is to first survey the existing research data based on exterior structural environment. Secondly, closely evaluate the new data of artificial grotto from the viewpoint of indoor environmental control by a natural climate phenomenon in Korea.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.69
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• pp.673-698
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• 2016

This study tries to conduct a systematic analysis on whether adding up the royalties and license fees or not in measuring the taxable amount of tariff. We have confirmed that three main criteria to decide whether it is yes or not are non-inclusion, relatedness and condition of sale. We also have realized that whether satisfying a condition of sale or not depends on license agreement, sales contract, special relationship and so on. Furthermore, we have made case studies of bonded factory, film's domestic distribution, exempt royalty and license fee, price for exclusive use of relevant technology, retroactive application of price change and strict interpretation. Based on the case studies we have derived the following conclusions: First, the royalties and license fees only actually paid to the licensors may be added to taxable amount. Second, the royalties and license fees incurred after the imported goods are made into domestic goods may not be added up. Third, the royalties and license fees paid as a price for use may not be added up. Fourth, the analogical interpretation of relevant codes is not accepted.

• Proceedings of the Korea Concrete Institute Conference
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• 2008.04a
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• pp.1109-1112
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• 2008

Concrete structure is recognized as the universal structuring material for its outstanding formability, economic efficiency, and strength development. However, as the ageing of field workers and the deficiency of skilled workers due to evasions from 3D business have recently become the major issues of the industry in Korea and as the materials are becoming more diversified and complicated for today's concrete structures are becoming higher, larger, and specialized, the need for practicality of construction work based on new technology and new method has greatly increased. Therefore, the overall condition of today's construction business requires researches and developments on the high fluidity concrete for higher construction efficiency and quality improvements. With this reason, this study investigated study development tendency and development situation of the high fluidity concrete, arranged experiment performance, and domestic or international specification used in performance valuation of the high fluidity concrete.