• Journal of Distribution Research
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• v.16 no.5
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• pp.141-169
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• 2011

This study compares the business performances and the socioeconomic and sociopsychological characteristics of franchisees and independent business owners (IBOs). On the basis of extant theoretical arguments and empirical evidences it was expected that franchisees are different from IBOs in these aspects because unlike IBOs they are using franchising as their way of businesses and should satisfy the requirements imposed by franchisors. Analyzed in the current study was a national survey database of 424 franchisees and 5,690 IBOs compiled by the Small Enterprise Development Agency in 2011. As expected, it was found that franchisees were significantly different from IBOs in such traits as financial and managerial capabilities, business experiences, demographic and socio-psychological characteristics, information searching efforts, business performances, and their perceptions of business obstacles. It was also found that the effects of these traits on business performances were quite different between franchisees and IBOs. The findings of the current study provide some meaningful suggestions for government agencies. Given that franchises and IBOs have different traits, their demands for governmental policy should be different, and consequently, it might be argued that government agencies should treat the two groups separately and should increase their efforts to develop appropriate supporting policies for each group. With respect to franchisor's practices for franchisee selection, it is also argued that in order to enhance franchisee performances franchisors need to examine thoroughly the traits of prospect franchisees. This study concludes with discussion of several theoretical and methodological limitations for future research.

• Journal of KIISE:Computer Systems and Theory
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• v.36 no.5
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• pp.396-403
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• 2009

An anonymous asymmetric fingerprinting protocol combined with watermarking techniques, is one of the copyright protection technologies keeping both right of a seller and that of a buyer, where a seller and an anonymous buyer perform such a protocol that employs various cryptographic tools in order that the seller does not know the exact watermarked copy that the buyer receives, while inserting an invisible non-removable fingerprint i.e., each different unique watermark, into each copy of the digital content to be sold. In such a protocol innocent buyers are kept anonymous during transactions, however, the unlawful reseller is unambiguously identified with a real identity as a copyright violator. In 2007, Yong and Lee proposed an anonymous asymmetric fingerprinting scheme with trusted third party. In this paper we point out the weakness of their scheme such as: the buyer with intention can remove the fingerprint in the watermarked content, because he/she can decrypt the encrypted fingerprint with a symmetric key using man-in-the-middle-attack; a real identity of a buyer can be revealed to the seller through the identification process even though he/she is honest. Furthermore, we propose an improved secure and efficient anonymous asymmetric fingerprinting scheme which enables to reduce the number of communication between the participants.

• Journal of Life Science
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• v.8 no.4
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• pp.410-415
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• 1998

Procine pepsin hydrolysis of hexapeptide L-S-pNF-Nle-A-OMe in the presence of dipeptide L-L generates a new peak on HPLC analysis of reaction mixtures that is not seen when enzyme is incubated with either peptide alone. The peaks can be detected spectroscopically at either 214 or 254 nm, the latter consistent with a new peptide containing the p-nitro-F residue. The data suggest acyl transpeptidation between E(L-S-pNF) and L-L to form L-S-pNF-L-L. Consistent with this inference are (1) the ability of L-L-NH$_{2}$ and inability of Boc-L-L to undergo a similar transpeptidation reaction, and (2) the data from electrospray mass spectrum. This synthesis requires that Nle-A-L-OMe be released before L-S-pNF, an order opposite to that proposed on the basis of product inhibition kinetics. Consistent with this inference are reciprocal solvent isotope effects ; normal isotope effects of 1.736$\pm$0.121 on the formation of Nle-A-L-OMe and 2.281$\pm$0.184 in the formation of L-S-pNF, coupled to an inverse isotope effects of 0.576$\pm$0.045 on the formation of L-S-pNF-L-L. Because transpeptidation precedes faster in D$_{2}$O, the isotopically-sensitive step must occur after release of Nle-A-L-OMe. Isotopically-enhanced transpeptidation is consistent with the Uni-Bi iso memchanism postulated on the basis of an isotope effects on Vmax but not on Vmax/Km$^{1)}$ and confirmed by isotope effects on the onset of inhibition by pepstatin$^{2)}$.

• Journal of Korea Port Economic Association
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• v.28 no.1
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• pp.179-201
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• 2012

Since 1993, M&A activities have been frequent in Liner shipping market. This study examines the effect of M&A on stock price reaction for acquiring firms listed on the market. The study covers the period from 1993 to 2009 and uses 61 daily closing prices of the acquiring firms before and after the M&A announcement day and is analyzed through the market-adjusted model in an event study. After calculating short-term performance using abnormal returns(AR) and cumulative average abnormal returns(CAR) before and after 30 days from the day of event, the results on the test show that the firm's values slightly increased through the M&A, but it does not attest to the statistical significance. In addition, this study investigates the AR difference between estimating windows and post-event windows for the 3 cases of each period before and after 30 days, 15 days, and 7 days from the event day to analyse the impact of M&A on the addition of acquiring firm's value. Our findings suggest that the M&A between Liner shipping companies is targeted for the long-term business strategy instead of the instant rise in the value of the firm involved.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 1994.07a
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• pp.23-24
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• 1994

본 연구는 성숙과의 저장중에 세포벽분해효소가 세포벽을 분해해서 물성의 변화를 유발함으로 일어나는 과실의 연과가 품질과 저장성의 저하 뿐만 아니라 영양적, 경제적 손실을 초래한다는 점을 고려하여 대추의 성숙중에 일어나는 연화현상을 연구하고자 성숙에 따른 경도, 세포벽분해효소의 활성, 세포벽 다당류 pectin질, 비섬유성 중성당 및 조직의 변화를 조사하였다. 경도는 대추의 숙성에 따라 감소하였고, polygalacturonase와 $\beta$-galactosidase의 활성은 각각 변색기와 완숙기에 나타난 이후 급격히 증가하였다. 세포벽 다당류인 pectin질과 알칼리 지용성 hemicellulose는 완숙기가지 증가햐였으나 cellulose는 완숙기에 산가용성 hemicellulose와 cellulose를 제외한 세포벽 다당류의 함량은 다소 감소하였다. 대추의 세포벽 비섬유성 중성당으로 rhamnose, arabinose, xylose, mannose, galactose, glucose가 동정되었고, 성숙동안에 pectin질에서는 arabinose, mannose, galactose와 총 비섬유성 중성당의 함량이 감소하였고, 산가용성 hemicellulose에서는 xylose와 mannose가 뚜렸하게 증가하였으나 중성당은 변화없었으며, 알칼리 가용성 hemicellulose에서는 성숙에 따른 변화가 거의 없었다. pectin질의 경우 수용성 pectin, EDTA 용해성 pectin 및 총 pectin은 성숙중에 증가하는 경향이있으나 불용성 pectin은 감소하는 경향이였으며 과숙기에는 불용성 psctin EDTA용해성 pectin 및 총 pectin의 함량은 모두 현저히 감소하였다. 대추의 성숙중 조직에서는 pectin질로 구성된 중충의 붕괴현상이 뚜렸하게 나타났다.발이 절실히 필요한 실정이다. 이러한 배경으로 본 강연에서는 효소적갈변 저해제의 개발과 그들의 식품가공에의 적용 현환 및 화장품, 의약품으로의 응용에 대해 설명하고자 한다.L주에 비해 S주는 수정후 용과가 더 심하다. 9) 화분관의 행동은 수정력과 완전히 일치된다. 즉 L-selfing, $L{\times}L$, S-selfing, $S{\times}S$등의 부적법 수분에서는 화분관은 화주의 미중에서 정지되지만 $L{\times}S$, $S{\times}L$,에서는 수분 약 40-50분 후이면 화분관은 자방까지 도달된다. 10) S주는 웅본으로 오인되어 있지만 인위적법수분을 하면 수정력이나 화분관의 행동은 L주에서와 동일하다. 11) S화분은 완전하지만 L화분은 약 70%가 내용공허한 Adortive pollen 이다. 12) L화분중 나머지 30%도 S화분에 비해서 염색도가 낮은것이 많고 S화분 같이 농염되는 것은 극히 소수이다. 13) 본장물은 분화가 고도로 진행된 전형적인 이형예작물이여 마치 Dimorphism 에서 Dioecious 에로 이행되는 수가 있다는 것을 표시하는 증거가 되는 것 같다. 다소 높은 산소농도 3%~5% 이산화탄소 농도 5~8%에서 저장하는 것이 효과적일 것으로 판단되었다.철쭉군목으로 대표되나 군단이 하의 군목들은 다소 차이를 보이는 것으로 나타났다. 중간상인이론의 수정이 필요하다고 본다.가\ulcorner 본 논문에서는 표면적 형태에도 불구하고 [-wh]의미의 겹의문사는 병렬적 관계의 합성어가 아니라 내부구조를 지니지 않은 단순한 단어(minimal $X^{0}$ elements)로 가정한다. 즉, [+wh] 의미의 겹의문사는 동일한 구성요 소를 지닌 병렬적 합성어([

• Environmental and Resource Economics Review
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• v.25 no.1
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• pp.27-60
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• 2016

An integrated assessment model of climate and the economy (IAM) has been a standard tool for the economic analysis of climate change and policy recommendations. Since policy measures to address climate change take places at a national level, a regional integrated assessment model of climate and the economy (RIAM) is gaining more importance. A RIAM is a useful tool for the assessment of regional (or national) impacts of climate change. This paper investigates the main features of the currently available RIAMs. The focus is social welfare functions and the regional aspects of climate change. The comparative analysis shows that there is a huge gap between the economics of climate change and its applications to RIAMs. As an application, this paper examines the effect of social welfare functions on optimal solutions of the RICE (Regional Integrated model of Climate and the Economy) model. It is found that optimal climate policy such as carbon tax or emissions control rate is very sensitive to the assumptions on social welfare functions of RIAMs. It is better for each country to have their own RIAM as a basic tool for national climate policy-making and for international bargaining in greenhouse-gas mitigation. This is because a country's own preferences such as efficiency, equity, and sustainable development as well as national circumstances can be reflected in RIAM. The Republic of Korea has not developed its own RIAM yet. The comparative analysis and the numerical model in this paper can be a stepping stone for the development of such a national model.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.23 no.2
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• pp.45-68
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• 2012

Archives have directly and indirectly served for memory. What is collected in archives, how it is presented to users, and how users understand and use the documents affects how a given society remembers its past. Some archival scholars see that how users interpret documents from their perspectives and by social interests may play a central role in constructing social memory because memories are often triggered by individual and social concerns of the present time. Therefore, knowing what causes users to seek for a certain materials, how they use those materials and why can offer a clue to learn how archives serve for social memory. In the Web space, the interaction between users and archives/archival materials can be easily observed. Beyond making access simple for users and promoting archival documents using Web technology, archives can serve the broader purpose of memory by skillfully exploiting the characteristics of Web 2.0 and digital cultures in a way to observe how users engage in and contribute to archival contents available on the Web. This study examines the discourses on memory in the archival context, and in particular, how archives can serve as platforms for memory within the new environment of Web 2.0 technologies. It surveys discussions on memory in relation to archives, history, and evidence, focusing on the user and use context as it is represented in the archival literature. This paper discusses how that technology provides features that allow us to see collective memory being constructed in the archives, and presents examples of how the Web 2.0 technology can structure the way users share their memories in building a larger narrative around the archive.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.30 no.4
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• pp.70-80
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• 2012

There isn't much of discussion about survey of traditional Korean garden with a perspective of Pungsu. Strictly speaking, it is difficult to list the names of gardens in which Pungsu theory is applied. But it is necessary to study in depth the Korean garden in mountain in relation with Pungsu. The reason is as follow; First, Pung-su and gardening both reflect man's responsive attitude and approach toward nature. Second, selecting a site for a garden requires aesthetic eyes to consider the harmony with the surrounding landscape and its compositions, where the perspective of Pungsu can play as an important component at work. Third, Pungsus complementary function justifies the correlation between Pungsu and Korean gardens. Gardens can be viewed as a solution to complement negative elements of Pungsu on site. This article tries to study the relationship between Pungsu and Korean garden in mountain in terms of Pungsu aesthetics. In Kosan Yoon Sun-Do's Buyong-dong garden, excavated perspectives of Pungsu aesthetics are fell into two categories; the spatial frame based on Pungsu topography and the dimension of enjoyment through visual angles between essential points. The former can be said as Pungsu topography as a mental image which was constructed by selected points and given Pungsu meanings; the latter is visual angles between those points by which make it possible to see and enjoy in comfortable sights. In such way making and enjoying Buyong-dong garden with full of Pungsu oriented meanings and aesthetics, Kosan Yoon Sun-Do enjoyed and sublimated his experience in nature into art.

• Korean Security Journal
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• no.29
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• pp.301-336
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• 2011

This exploratory study aims to review the risks and threats of social network services(SNSs), particularly focusing upon the policing perspective. This paper seeks to acknowledge the present risk/danger of SNSs and the very significance of establishing a strategic framework to effectively prevent and/or control criminal misuse of SNSs. This research thus advocates that proactive study on security issues and criminal aspects of SNSs and preventive countermeasures can play a significant role in policing the networked society in the time of digital/internet age. Social network sites have been increasingly attracting the attention of entrepreneurs, and academic researchers as well. In this exploratory article, the researcher tried to define concepts and features of SNSs and describe a variety of issues and threats posed by SNSs. After summarizing existing security risks, the researcher also investigated both the potential threats to privacy associated with SNSs, such as ID theft and fraud, and the very danger of SNSs in case of being utilized by terrorists and/or criminals, including cyber-criminals. In this study, the researcher primarily used literature reviews and empirical methods. The researcher thus conducted extensive case studies and literature reviews on SNSs. The literature reviews herein cover theoretical discussions on characteristics, usefulness, and/or potential danger/harm of SNSs. Through the literature review, the researcher also concentrated upon being able to identify a strategic framework for law enforcement to effectively prevent criminal misuse of SNSs The limitation of this study can be lack of statistical data and attempts to examine previously un-researched area in the field of SNS and its security risks and potential criminal misuse. Thus, to supplement this exploratory study, more objective theoretical models and/or statistical approaches would be needed to provide law enforcement with sustainable policing framework and contribute to suggesting policy implications.

• Journal of Korean Philosophical Society
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• v.148
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• pp.101-128
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• 2018

While there are various opinions about the relationship of Schiller's thought and Kant's, it is undeniable that Schiller owes much to Kant. What distinguished Schiller from other Weimar thinkers at his time, such as Goethe, Herder and Wieland, was that unlike them Schiller accepted Kant's project of critical philosophy. In fact, Schiller did not just accept it, but tried to interpret and formulate anew the relation of beauty and morality and some other aesthetical-ethical ideals on the basis of the new philosophy. Schiller's famous project of 'aesthetic education of mankind' itself is the product of such an endeavor. In this work we follow the history of Schiller's acceptance of Kant's critical philosophy and ruminate over its implications. And then, we'll show that Schiller's 'beautiful soul' in Grace and Dignity (1793), which is often suggested to be a proof of Schiller's conflict with Kant, was understood on the basis of Kant's moral theory. In this part of the work, we compare Schiller's ideal of the 'beautiful soul' and Shaftesbury's ethical thought, which is often presumed to be its background. From this comparison we'll be able to see that there is a considerable disparity, despite apparent similarities, between Schiller's and Shaftesbury's ethical ideals, which is due to their respective philosophical sources, that is neo-platonic metaphysics and Kant's critical philosophy.