• KIEAE Journal
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• 제17권1호
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• pp.77-82
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• 2017

In power supply systems for urban areas, issues such as a progressive tax have escalated recently. In this regard, photovoltaic power generation, which is appraised as an alternative power generation system, is drawing attention increasingly for its high stability and applicability to existing infrastructure. This study assessed the realistic feasibility of photovoltaic power generation and also analyzed the economic benefits expected when it is linked with green roof, which is likely to promote ecological functions in urban areas, based on the Seoul solar map, RPS, and actual monitoring data. The economics analysis of 30kW photovoltaic power generation applied with the monthly average horizontal solar radiation of six grades in the Seoul solar map showed that positive NPV was up to grade 4, while grade 5 or poorer showed negative NPV and indicated that it is difficult to assure appropriate feasibility. Compared with non-afforestation, when green roof was applied, monthly average power improvement efficiency was 7.2% at highest and 3.7% at lowest based on yearly actual monitoring data. The annual average was 5.3%, and the efficiency was high relatively in summer, including September and November. As for the economic benefits expected when 30kw photovoltaic power generation is combined with green roof based on the average horizontal solar radiation of grade 1 in the Seoul solar map, SP has improved 0.2 years to 7.4 years, and EP has improved 0.5 years to 8.3 years.

• Journal of Nutrition and Health
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• 제12권3호
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• pp.9-23
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• 1979

The known risk factors for atherosclerosis include plasma low density lipoproteins (LDL)or Cholesterol, low PUFA in the diet, hypertension, and high Na intake, obesity, diabetes, lack of exercise, cigarette smoking, sugar, low fiber and nicotinic acid in the diet, sources of Protein foods, and Psychological factors. Among various dietary factors, fat is known as the most serious causative agent for atherosclerosis. The genetic factor is a18o known as an important one but is out of scope in this paper. Since atherosclerosis is a progressive disease which may develop for many years before showing any definitive symptoms, it is very important to develop preventive programs especially in the country like Korea that is not quite overdevelopted as some western countries. In this paper all the factors mentioned above were reviewed and the dietary suggestion were made on the basis of the content of polyunsaturated and saturated fat in the diet to prevent or/and to cure this disease. Most of the available data on diet therapy with emphasis. on P/S ratio were tabulated together. after tile patient's habitual dietary intake is analized the guidelines of personalized fat-controlled diet can be recommended. It is of utmost importance to develop Korean diets for beth prevention and cure of atherosclerosis emphasizing individual eating habit in the near future which can be more Practicaly used both at home and in the hospital.

• 사회경제평론
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• 제31권1호
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• pp.1-23
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• 2018

이 연구는 한국사회경제학회 창립 30주년을 맞이하여 최근 10년(2008-2017) 동안 학회 발간 학술지인 사회경제평론과 년 4회 이상의 학술대회 등을 통해 발표된 한국경제 관련 논문들을 정리한 것이다. 이를 통해 학회의 학술활동을 되돌아보고, 향후 한국경제 연구의 진전을 위해 필요한 기록을 남기고자 함이다. 아울러 지난 10년 동안 유명을 달리한 김수행 교수를 포함하여 한국경제 연구에 큰 영향을 끼친 다른 두 분의 연구 성과를 정리하였다. 양극화와 소득불평등이 갈수록 더 심화되어가고, 경기 침체 등으로 성장이 정체된 한국 경제의 현실에서 국내 유일의 정치경제학 연구자들의 학술단체가 떠맡아야 할 책임감은 커지는데 비하여 학계의 연구 환경은 더 열악해지고, 학회의 재생산도 쉽지 않은 상황에 처해 있다. 따라서 이러한 문제를 극복하기 위해 무엇보다 학회 차원의 연구 조직화가 활성화되어야 하며, 연구 주제나 내용에 있어서도 한국경제의 비판과 대안 제시를 통해 개혁과 진보의 경제학회로, 그리고 주류경제학에 맞서는 학술단체로서 위상을 정립해 갈 수 있을 지에 대한 진지한 고민이 필요하다.

• 기술혁신연구
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• 제16권1호
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• pp.215-237
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• 2008

KIPRIS patent database was analyzed for identifying the technological status of Daedeok Innopolis Biocluster. It was found that the pattern of activities among various technological areas in Daedeok Biocluster is similar to that of an advanced country rather than those of other cities in Korea. The technological growth in Daedeok Innopolis Biocluster is in the progressive stage, which may be due to the innovative activities rather than the rise in the number of new firms or institutes. The concentration of technology in Daedeok Innopolis Biocluster is a favorable condition for the innovation activities. The trend for the technological concentration was remarkably consistent with the growth curve that a population increases according to the logistic equation. The logistic growth may be represented by the result of competition due to the limited resource allocation and then innovation cluster is corresponding to the ecosystem composed by biological individuals. There is strong competition in Daedeok Innopolis Biocluster in around 2009, so the government might make a policy to encourage the technological diversity for healthy knowledge ecosystem.

• 한국시스템다이내믹스연구
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• 제11권2호
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• pp.103-118
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• 2010

To reduce costs in general process, product quality degradation or lack of services are appeared. To improve these problems, dramatical solution of 'Freeconomics (Free+Economics) are discussed. Freconomics means, producers provide their products and services free of charge but they get customer's interests and reputations. Based on these customer's interests and reputations, producers generate profits with other services or related products. In this paper, we discuss about Green IT strategic plan with the management technique of Freeconomics. Green IT is called as Next-Generation growth engine to develop economy, so every country and industry hopes to develop it. With Freeconomcs, customers could get more quickly and much better use the Green IT products. So it is expected to spread of Green IT with Freeconomics as industry, country and customers are all satisfied.

• Industrial Engineering and Management Systems
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• 제10권2호
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• pp.154-160
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• 2011

In this paper, a reliability sampling plan under progressively type-1 interval censoring is proposed when the lifetime of products follows the Pareto distribution of second kind. We use the maximum likelihood estimator for the median life and its asymptotic distribution. The cost model is proposed and the design parameters are determined such that the given producer's and the consumer's risks are satisfied. Tables are given and the results are explained with examples.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 1997년도 추계학술대회발표논문집; 홍익대학교, 서울; 1 Nov. 1997
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• pp.207-210
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• 1997

The drastic structural changes in telecommunications industry are imposing new strains on operators, regulators and customers. Many researchers have offered diverse frameworks for the changes from the perspectives of sociology, technology, and/or economics. However, there have been few attempts to document the competitive phenomena from management perspectives because of the technological complexities and dynamism in the fundamental transition of competition. In this study, we examine competitive environment in telecommunications industry, and identified five structural elements; telecom operator, competitors, regulation, suppliers, and customer demand. The suggested framework is used to provide a basis for explaining the changes in the characteristics of individual elements and the interactions among them. The dynamic industry-specific changes will be explained through an evolutionary model. We specify the characteristics of progressive stages and the determinants of the evolution. Changes are reviewed in terms of five criteria; regulations and competitions, value chain, technology, customers demand, and internal operations. The result of this study will be useful in analyzing and predicting industry structure and major participants' strategic behaviors and decision patterns. This study can alse be extended to other industries facing dynamic structural changes.

• 복식문화연구
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• 제26권1호
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• pp.19-29
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• 2018

The purpose of this study is to examine the sociocultural meanings of flapper look in American society during the 1920s. Using the ProQuest database, I searched articles from The New York Times published between 1920 and 1929 for opinions and discussions on the flapper look. Keywords included "clothing," "dress," "fashion," and "flapper," and advertisements and articles on menswear, leisurewear, and bathing suits were excluded. In the resulting articles, I extracted the following sociocultural meanings: autonomy, activeness, practicality, attractiveness, and extravagance. Meanings were analyzed from the opinions and discussions focusing on skirt length, dresses that directly and indirectly exposed the body, heavy make-up, non-constricting underwear, the H-line dress, bobbed hair, hygiene, comfort, and consumption. In sum, the 1920s flapper look represented progressive characteristics such as autonomous and active womanhood and practicality, which matched the technological development of the time. However, the flapper look was commercialized and exploited to make women look attractive and extravagant. Even though American women had access to higher education, more economic power, and suffrage in the 1920s, they were limited in their ability to overcome social conventions and the power of consumerism. Understanding the double-sidedness of flapper look within the social context of the time would enhance the comprehension of the relationship between women's lifestyles and changing fashion.

• KIEAE Journal
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• 제15권6호
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• pp.5-10
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• 2015

Purpose: To evaluate the economic performance of grid-connected photovoltaic system in residential house, household electricity bill policy of Korea Electric Power Corporation (KEPCO) must be applied precisely, and market tendency and uncertainty of system also need to be considered. In this study, to evaluate the economic feasibility of PV system, we measured PV power generation and electricity consumption of six of Green home in Daejeon through web based remote monitoring system. Method: We applied Monte-Carlo simulation based on life cycle cost analysis, to reflect an uncertainty of main factor in economic feasibility evaluation of photovoltaic system. Result: First, with deterministic analysis, the difference of NPV of cumulative financial savings among households varied from -3,310 ~ 24,170 thousand won, portraying notably big range. Also the possibility of getting the same result was 50% when applying uncertainty. Second, the higher electricity consumption is, the more economic feasibility of photovoltaic system increases because KEPCO uses progressive taxation in household electricity bill policy. Third, The contribution to variance of electricity price increases in NPV varied from 98.5% to 99.9%. While the inflation rate and annual degradation contributed very little to none.

• The Journal of Asian Finance, Economics and Business
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• 제6권4호
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• pp.213-225
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• 2019

As the recent tendency of career management has changed, companies have supported progressive career management and development of their employees internally. And strengthening job crafting is an effective activity not only to improve the work efficiency of the organizations but also to improve the job satisfaction and wellbeing of their employees. In these backgrounds, this paper aims to explore the components of job crafting for the multinational employees in order to emphasize the importance of job crafting and empirically analyze the influential relationship in terms of career success through career commitment and career attitude. Based on literature review the job crafting was defined with three components; task crafting, relation crafting, and cognitive crafting. A total of 336 survey data were analyzed for a total of 27 multinational corporations. As the analysis result the task crafting and cognitive crafting of multinational employees were shown to have an influence on career attitude, but relation crafting did not have any impact on career. It can be interpreted that the employees have self-directed career attitude through a method of showing visible performance based on their given jobs rather than having individual career management attitude through relationships between departments, organizational members, and supervisors.