• 농업과학연구
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• 제37권1호
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• pp.151-160
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• 2010

Housing is one of the most important factors determining the quality of rural life. Housing condition in rural area has been deteriorating over the past years in spite of many rural development programs. Korean government formulated 'Rural Housing Environment Improving Plan' including rural rent-house program in 2006. This study aims to find the fundamental intension of rural people for adopting the rent-house system in rural area. To do this, background and current state of rural rent-house program are presented and the demand for rural rent-house is analyzed based on the survey results done by Korea Rural Community Corporation in 2005. Major findings from the survey analysis imply that the size/age/ownership of the current houses and the age of householders, motive and time period of current residing, and components of households are significant factors when considering whether they are willing to apply rural rent-house.

• Journal of Communications and Networks
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• 제18권4호
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• pp.658-669
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• 2016

The tremendous increase in mobile data traffic coupled with fierce competition in wireless industry brings about spectrum scarcity and bandwidth fragmentation. This inevitably results in asymmetric-valued long term evolution (LTE) spectrum allocation that stems from different timing for twice improvement in capacity between competing operators, given spectrum allocations today. This motivates us to study the economic effects of asymmetric-valued LTE spectrum allocation. In this paper, we formulate the interactions between operators and users as a hierarchical dynamic game framework, where two spiteful operators simultaneously make spectrum acquisition decisions in the upper-level first-price sealed-bid auction game, and dynamic pricing decisions in the lower-level differential game, taking into account user subscription dynamics. Using backward induction, we derive the equilibrium of the entire game under mild conditions. Through analytical and numerical results, we verify our studies by comparing the latest result of LTE spectrum auction in South Korea, which serves as the benchmark of asymmetric-valued LTE spectrum auction designs.

• 무역상무연구
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• 제51권
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• pp.3-54
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• 2011

The important and main purpose of revision of Incoterms rules are to adapt it to contemporary commercial practice in world trade, and to contribute to great service to foreign trade. Incoterms$^{(R)}$ 2010 revision basically focuses on trade terms to be used for any mode or modes of transport at compared Incoterms 2000 gouping in four basically different categories, and presents trade terms to be used for traditionally seaborn trade. Therefore the former is for trading in manufactured goods involved in containerization, the latter is for trading in community. This study focuses on a motive of revisions and main features of the Incoterms$^{(R)}$ 2010 rules, an outline, the problems and alternative of them. In conclusion, I would like present as follows; (1) Although they only concerned the models of delivery and critical point, they only say a few of the many factors of a sale contract, that is to say for the devision of fuctions, costs and risks between the contracting parties as supplement law, but the guestion of the legal position of Incoterms rules is various in different countries and scholars. in spite of that, it must focus on the practical application and the wide acceptance of Incoterms rules in world trade. (2) Although they present more simple and clear, unfricative, than Incoterms 2000 rules, in order to help users, the need to unify consistently and fully explanate in contents and expression. (3) Introduction and guidance note of Incoterms$^{(R)}$ 2010 rules basically focuses on the understanding of a motive of revisions as compared Incoterms 2000 rules. But it is well advised to do this on the assumption of understanding the various basic meaning of terms. (4) finally, trade concerned regulations take account of the reflection for the application to domestic and international trade according to formally reconization of availability for both trade.

• 한국게임학회 논문지
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• 제12권6호
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• pp.59-70
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• 2012

아이템 현금 거래가 이루어지는 방법으로는 게임 동호회에서의 거래, 직거래 등 여러 방법이 있다. 그러나 현실에서는 수수료를 부담해야 하는 아이템중개사이트가 가장 많이 이용되고 있는 것으로 보인다. 본 연구에서는 아이템중개사이트와 기타 거래에서의 아이템 현금 거래 가격을 분석함으로써, 소비자들이 아이템 중개사이트를 주로 활용하는 이유를 살펴보고자 하였다. 아이템중개사이트에서의 거래 가격과 기타 아이템 현금 거래방법에서의 거래 가격을 비교 분석한 결과, 아이템중개사이트에서의 가격이 평균 6% 더 비싼 것으로 나타났다. 구매자들은 6%더 비싼 가격을 지불하고 아이템중개사이트를 이용하고 있었는데, 이는 거래의 안전성과 편리성에 대한 대가로 볼 수 있다. 그리고 판매자들은 아이템중개사이트를 이용하는 것이 다른 거래 방법에서보다 0.7% 정도 더 높은 가격으로 판매할 수 있었다. 구매자와 판매자가 아이템중개사이트를 이용하는 것은 충분한 이유가 있는 것으로 파악될 수 있다.

• 재무관리연구
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• 제1권1호
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• pp.119-131
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• 1985

Although Korea is short of capital technology, and natural resources, she has achieved an outstanding progress by the export-drive policies by Korean government and the creative endeavor of Korean firms. As a result of that, Korean economy and enterprises are in the same file of newly industrialized countries and Korea is ready for an economic take-off as a developed country. But in the early 1980s, each country strengthens protective trade theory and resources nationalism, and this has a great influence on the field of international trade environment. In spite of that, to continue the same high development as that of the past. Korea must try to secure and find export markets, solve trade barriers, make sure of the long-term security of resources, develop technology, and strengthen economic cooperations. To satisfy these desires by 2000s, we must try to make Korean enterprises have the global competitive power and them grow strongly among world wide firm through capital and technology accumulated during the passed years, and to do so, there must be a foreign production and marketing management, too, this can be achieved only through foreign overseas direct investment. This investment has various forms, to say, verifical integrated, horizontal integrated. conglomerate integrated forms, and the amount of investment in each country from 18 century to today reaches 500 billion dollars. This investment is done by strategic, behavioral economic, and financial motives. So I am going to approach the fields of like these; in spite of the differences among political, economical, caltural, and social systems, and many risk compared with domestic enterprises, why do Korean firms witsh to transfer the productive facilities to overseas countries and run them there? What is the comparative advantage of foreign direct investment compared with domestic investment ?. why is the factor of comparative advantage transferred through foreign direct investment?, what is the motive of foreign overseas direct investment?, and last the ownership-specific factors and the theory of internalization, and the location specific factors were analysed chiefly. But in consideration of the given condition in Korea, Korean overseas direct investment must be propelled rationally on the basis of the above mentioned theory.

• 한국학교수학회논문집
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• 제1권1호
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• pp.59-67
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• 1998

Probability and statistics is an important section in mathematics which is deeply related to everyday living, natural science and social science. In spite of its importance, many students will throw away it because it becomes very harder as its step(stage) deepens and probability and statistics' relative importance is very small in Korea-SAT(the test of college entrance in Korea). Therefore, by analyzing the involvement carefully between the curriculum in the elementary, middle, high school and the text book, by studying the problem and improvement direction, it is necessary to investigate an effective teaching method. This study intends to give the students the confidence, interests, and accomplishment motive about probability and statistics field and to make a rational and creative decision-making through mathematical speculation by proposing an effective teaching method through analyzing an existing facts in school's probability and statistics field. The contents of this study are composed of four chapters. Chapter three looks into the mathematical curriculum in the elementary, middle, high school and its teaching meaning, the outline of contents, some tips on teaching and problems and presents an effective and concrete teaching method on the basis of the theoretical background in the chapter two. Chapter four is a conclusive part and gives the general improvement and intentional direction in educating the probability and statistics.

• 한국경영과학회지
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• 제26권2호
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• pp.85-97
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• 2001

Online games have become the focus of entertainment and multimedia industries as the developments in computer technologies are accelerated and the use of the Internet diffuses broadly. In spite of such growth of online games, academic discussions regarding online games are relatively limited. This research examines several factors that affect player loyalty to online games. In this research, the loyalty is classified into two categories, the behavioral loyalty measured by the intensity, volume, and frequency of use, and the cognitive loyalty measured by the degree of immersion in online games. In this research, an integrated model to explain and predict player loyalty to online games in proposed. Two studies are conducted to test to research model. Throughout analyzing 334 respondents, the first study finds that the impulsive personality of individual players significantly affects both behavioral loyalty and cognitive loyalty. Additionally, it finds that, whereas the behavioral loyalty is influenced by the convenience of online game playing, the cognitive loyalty is influenced by the motive of game playing and the playfulness of games. The second study finds that the behavioral loyalty differs across demographic differences of players (age and occupation), preferred online games of players, and online game playing locations, but the cognitive loyalty differs across only age differences of players. This research has opened a forum for social awareness about the online game culture, provided information to guide online game producers to prepare customer-oriented online games, and created a foundation for academic research on online game industry.

• 항공우주시스템공학회지
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• 제8권1호
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• pp.30-35
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• 2014

This study has been conducted to develop an ejector system applied in the aircraft engine-bay ventilation system. Tandem-Ejector was selected as a component of ventilation system because it could achieve high ventilation performance in spite of motive flow with small flow rate. Tandem-Ejector is composed of a primary nozzle and two mixing ducts ($1^{st}$ mixing duct and $2^{nd}$ mixing duct). In this study, 1-D Tandem-Ejector model has been built with conservation laws and isentropic relation for 1-D ejector sizing and performance prediction. Computational Fluid Dynamics(CFD) has been conducted to investigate ejector performance and flow characteristics in the ejector. Also, Tandem-Ejector performance tests have been conducted to obtain ejector pumping performance and to investigate stand-off (gap between primary nozzle and $1^{st}$ mixing duct inlet) effect on ejector pumping performance.

• 수산해양교육연구
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• 제16권2호
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• pp.199-209
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• 2004

The main purpose of this study is to explore a social capital paradigm which can be applied to many forms of social capital and intangible goods. The social capital paradigm introduces a new form of capital. This new form of capital produces a flow of socio-emotional goods that have value. Moreover, these socio-emotional goods can attach themselves to the objects used to convey them and change their value and meaning. This change in value and meaning is defined as attachment values. Exchanges of socio-emotional goods occur in networks where social capital resides. Formal and informal institutions provide order and meaning to exchanges of tangible and intangible goods. Social capital is a powerful resource that makes our choices interdependent. The social capital paradigm does not alter or contradict the basic economic theories of exchange. While the social capital paradigm accepts that selfish preferences motive many actions, it adds that sympathy and the desire to consume socio-emotional goods are powerful motivators. In case of marine affairs, ocean and fishing villages and their culture have been not only a fundamental basis of fisheries development but they also have made a great deal of contribution to forming social capital. In spite of this fact, the main reason that the problems of fisheries fishing villages fishermen in our society are kept at a distance is because they have been loosing their capability of forming social capital and producing socio-emotional goods, in addition to lowered relative economic share.

• 한국식생활문화학회지
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• 제13권2호
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• pp.127-134
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• 1998

A survey was carried out to investigate into high school girls' food intake pattern and their behavior for weight control. The average height and weight of the subjects were 161cm and 52.9kg, while 53.3% of them usually had breakfast which 83.7% of them had steamed rice and dishes,64.7% of residue (46.7%) them often skipped breakfast because they didn't have to eat. Most of them had lunch which prepared from home at lunch time (75.7%), they cheesed foods at first by taste(71.9%), but they almost didn't consider the nutritional aspects, also they had very small amount of fruits and vegetables. They had snack more than once a day(93.4%), As snack, they used mainly cookies(39%), Ramyun and Ddukbocki(31.5%),and breads(17.6%). Meal time was shown to be short such as 10 or 20 minutes(40.7%), dinner was thought to be the most important meal(66.9%) In spite of their weight was standard(56.68%), they thought their style as fatty(48.1%) and they wanted to reduce weight(90.4%). 90.3% of all subjects were interested in weight control and students with standard sizes(52.7%) and/or/(p<0.05) lean weights(27 1%) had concerning about weight control significantly. The motive of attempt to weight control was shown to be effected by mass communication(49.1%) mainly, When they tried to lose their weight, 66.7% of them depended on their own judgement, while only 1.1% asked for the advice of a doctor. The most effective way to control weight was thought to increase the amount of exercise(52.7%) and to control the amount of food (32.2%).