• Journal of the Institute of Electronics Engineers of Korea CI
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• v.46 no.2
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• pp.10-18
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• 2009

In this paper, we propose a novel method for authenticating a user's personal-usage using a secure portable storage, so that the user carrying the secure portable storage is able to consume his/her own broadcast programs freely, regardless of the location of the devices. The proposed authentication process is performed by a portable personal-usage authentication device, an access-control module for the portable personal-usage authentication device, and a player integrating the access control module. The portable personal-usage authentication device plays a role of secure storage in which domain authentication information is securely stored, while the access-control module is in charge of accessing the authentication information and, consequently, acquiring a decryption key. The player decrypts the broadcast programs in real time and processes the decrypted media streams. In this Paper, we describe the structure and procedure of the proposed model, and verify its feasibility by implementation.

• Korean Journal of Social Welfare Studies
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• no.39
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• pp.343-364
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• 2008

Using data from Korea Welfare Panal Study(KWPS), this study examines the relationship between public income transfers and private income transfers in Korea. This research is analyzed by the procedure of OLS regression analysis. The results are as follows. First, the paper shows that public income transfers crowded out the private income transfers. Specially public assistance crowed out the private income transfers. The amount of public income transfers has negative correlation with the amount of private income transfers. The amount of public assistance income has negative correlation with the amount of private income transfers. But social insurance transfers do not have influence on the private income transfer. Second, the private income transfers in Korea are altruistically motivated.

• Korean Journal of Social Welfare
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• v.39
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• pp.157-179
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• 1999

This study is an empirical research to analyze how many private income transfers in Korea decrease poverty rate, to compare the effects of private income transfers' decreasing poverty rate with income classes. This study has utilised the Family Income and Expenditure Survey to estimate the poverty ratio in urban areas and Unemployment Household Survey which Korea Institute for Health and Social Affairs has investigated at 1998. Majour findins are these. First, Sizes of private transfers incomes are much than that of public transfers incomes. The rates in receiving private transfers income are ten times higher than that in receiving public transfers income among urban worker's household. The mean of private transfer income are about six times larger than that of public transfer income among urban worker's household. Second, the effects of private income transfers' reducing poverty rates are not large. After private transfers, urbarn workers' households are about 10 per cent away from its poverty line, and unemploy households are only 3 per cent away from its poverty line. Third, especially, private income transfers are hardly reducing poverty rates among extreme poverty class. After private transfers, urban workers' households which their incomes are within low 5%, are not away from its poverty line at all.

• The Korean Journal of Air & Space Law and Policy
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• v.32 no.1
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• pp.419-477
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• 2017

In Space contains valuable natural resources. These provide a compelling reason for entrepreneurs, investors, and governments to pursue space exploration and settlement. The Outer Space Treaty of 1967 explicitly forbids any government from claiming a celestial resource such as the Moon or a planet. Article II of the Outer Space Treaty states that "outer space, including the Moon and other celestial bodies, is not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means." The U.S. Commercial Space Launch Competitiveness Act of 2015 (CSLCA), however, makes significant advances in furthering U.S. commercial space industry, which explicitly allows U.S. citizens to engage in the commercial exploration and exploitation of 'space resources' including water and minerals. Thus, some scholars argue that the United States recognizing ownership of space resources is an act of sovereignty, and that the act violates the Outer Space Treaty. This paper suggests that it is necessary to guarantee the right to resources harvested in outer space. More specifically, a private ownership of extracted space resources needs to promote new space business and industry. As resources on Earth become increasingly difficult and expensive to mine, it is clear that our laws and policies must encourage private appropriation of space resources. CSLCA which addresses all aspects of space resource extraction will be one way to encourage space commercial activity.

• Korean Journal of Social Welfare
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• v.56 no.2
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• pp.5-27
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• 2004

This study estimates the role of public and private income transfer to the income status of women who experienced marital disruption. In detail, this study estimates five major subjects (1) women's socioeconomic background, (2) income and poverty status, (3) family income composition, (4) the anti-poverty effect of public and private income transfers, and (5) factors associated with women's poverty status. Major findings of the study are as follows: First, women's socioeconomic characteristics, income status, and poverty status are different according to what types of marital disruption (separation, divorce, death of spouse) they experienced. Second, the role of public and private income transfers to reduce women's poverty are also different according to their marital status. Third, widow's working condition and the level of public assistance are significantly associated with the poverty status of widow.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.177-188
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• 2013

This study examines how managerial ownership structure affects the borrower's choice of private versus public debt using 2,608 firm-year data for 2006-2008. This paper investigates the relationship between managerial ownership structure and debt choice. Managerial ownership is measured using number of stocks and unexercised stock-options and debt is classified public and private debt. The results find that there is a positive association between managerial ownership and the private debt dependence and also find that when firms finance additional funds, higher managerial ownership leads managers to choose private debt not public debt. Since private debt can be classified into bank debt and non bank debt, this paper examines the relationship between managerial ownership and a choice of bank debt. The results indicate that managers with higher ownership are more likely to use bank debt over public debt and non bank debt. By examining the relation between managerial ownership and a debt choice, this paper has following contributions. First, this study shows that managerial ownership affects the choice of the source of financing using three different proxies of managerial ownership. Second, this study classified private debt into bank debt and non-bank debt and provide the evidence of preference toward private debt especially bank debt among other financing sources. Finally, there are extensive studies related to capital structure and managerial ownership, but there is little empirical research on the debt choice and managerial ownership. Thus, this paper adds to literature by exploring the effects of managerial ownership on a debt choice.

• Journal of the Korean Geographical Society
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• v.5
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• pp.59-68
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• 1970

이 글에서는 다음의 내용을 다루었다. 1. 고냉지 토지이용의 변천, (1) 토지이용의 사적 배경, (2) 고도와 작물 2. 생산구조의 변모, (1) 작부형태, (2) 경영구조

• Journal of the Korean Society of Food Culture
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• v.5 no.1
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• pp.139-155
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• 1990

• Korean Journal of Heritage: History & Science
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• v.45 no.4
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• pp.92-103
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• 2012

The Cheomsungdae was built in the Silla dynasty during the reign of queen Seondeok. It has a round cylindrical structure with a flowing curved fa ade. The identity of the Cheomsungdae has not been revealed since there is not much historical evidence or documents about the building. This study is trying to investigate the building technique and method from the technical point of view of the past when it was constructed. There have been much work and studies done for the Cheomsungdae, but not much were focusing on the technical aspects of the building. In addition there are many questions and doubts about the hypothesis of the building technique of Cheomsungdae since there aren't any remaining documents or historical evidence supporting it. Among many questions, we think that the discussion on falsework technique is not considering traditional construction method of the Dujabee (a traditional construction technique using various tools and equipment for the stability of the building) technique. Therefore, it is hard to identify them as reliable historical facts. As the result of the study, we want to provide the basic data on the construction techniques of Korean traditional architecture and broaden the study scope of technical history by narrowing the errors. The study could be summarized into three points. 1. The historical architecture Cheomseongdae was constructed by using traditional crane techniques such as a Noklo (pulley ladder). Cheomseongdae was re-evaluated as a high level technology for the history of architecture. 2. The benchmark method on Cheomseongdae construction has been applied with a precise scientific method based on the geometrical principals using the central axis. 3. In terms of the history of Korean traditional architecture technology, as there aren't many studies done we proposed various basic data for the traditional crane techniques and criteria of Korean traditional architecture technology. We could expect various and active studies for the technical approach of the history of architecture.

• The Journal of the Korea Contents Association
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• v.21 no.8
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• pp.478-488
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• 2021

This study analyzes the change in the contribution of the elderly to income inequality by using the Gini coefficient and the decile distribution ratio from the data of the Korea Welfare Panel Survey from 2007 to 2018 on economic inequality in old age. According to the study, the Gini coefficient of total income gradually decreased from 0.430 in 2007 to 0.383 in 2018. As a result, inequality decreased. Also, the higher the income quintile, the higher the income growth rate. Market income inequality has increased and inequality between public and private transfer income has decreased. Analysis of the contribution of income inequality to total income confirmed that public transfer income has replaced the role of private transfer income in reducing inequality over time. The expansion of public transfer income for the maintenance of basic living of the elderly is an important source of income for the elderly despite the crowding-out effect of private transfer income, market income, public and private transfer income, which are components of the income structure of the elderly, mutually complement total income. Therefore, it is important to identify income sources that contribute to alleviating income inequality among the elderly and reflect them in policy-making process.