• 제목/요약/키워드: Economic View

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Linze-Donawitz 가스로부터 일산화탄소(CO) 분리를 위한 흡수 및 흡착공정에 대한 기술경제성 비교 (Techno-economic Comparison of Absorption and Adsorption Processes for Carbon Monoxide (CO) Separation from Linze-Donawitz Gas (LDG))

  • 임영일;최진순;문흥만;김국희
    • Korean Chemical Engineering Research
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    • 제54권3호
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    • pp.320-331
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    • 2016
  • 제철소에서 부생되는 LDG (Linze Donawitz gas) 가스는 일산화탄소(CO)를 60% 이상 포함한다. LDG로부터 CO를 고순도로 분리하는 2가지 공정을 고려하였다: COSORB와 CO-PSA (pressure swing adsorption). 이 연구의 목적은 기술경제성평가(TEA: techno-economic analysis)를 통하여 이 두 공정 중 어떤 공정이 더 경제성이 높은 지를 결정하는 하는 것이었다. TEA의 기술적 측면에서는 초기투자비(TCI: total capital investment)와 총생산비용(TPC: total production cost)을 추정하기 위하여 먼저 공정흐름도(PFD: process flow diagram)를 완성하고, 물질 및 에너지 수지식을 계산한 후, 장치 종류 및 크기를 결정하였다. TEA의 경제성 측면에서는 투자회수율(ROI: return on investment) 및 투자회수기간(PBP: payback period)과 같은 경제성 판단기준을 산출하였고, ROI와 PBP에 가장 큰 영향을 주는 인자들을 찾기 위하여 민감도 분석을 수행하였다. CO-PSA 공정은COSORB 공정 보다 더 높은 ROI와 더 낮은 PBP로 인하여 경제적 우위를 보여주었다. CO의 가격은 ROI와 PBP에 가장 큰 영향을 주는 인자로 파악되었다.

경지정리사업의 확장편익-비용분석 - 충남서산시 지곡지구를 중심으로 - (An Extended Benefit-Cost Analysis of Land Consolidation and On-farm Development Project -With Respect to Jigok Land Consolidation and On-farm Development Project in Seosan, Chungnam Province, Korea-)

  • 임재환;이민수
    • 농업과학연구
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    • 제29권1호
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    • pp.66-83
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    • 2002
  • The economic feasibility analysis including benefit-cost ratio and internal rate of return of a land consolidation and on-farm development project was mainly depended upon the direct benefits and costs arising during project life. Therefore the projects were neglected in allocating the government's financial funds and loans on account of the low economic rate of return of the project. Accordingly the extended benefit-cost analysis method should be introduced and adapted to cover not only the benefit s such as non-market values of environmental and food security fun ct ions of the project but also market values of the project outputs. The main purposes of this study are (1) to prepare a guide line for economic feasibility analysis based on the IBRD and ADB guidelines, (2) to estimate the benefits from productivity increase, labor saving, savings of O&M cost of farm mechanization and project facilities, savings of farmer's burden for their public health, increasing environmental and public functional value of paddy fields, improving food security condition and formation of peaceful and uncontroversial rural society by implementing the land consolidation and on-farm development, (3) to introduce the newly adapted analytical method as the extended benefit cost analysis which could make possible to be included the values of non-market goods such as the food security and the environmental public function of paddy fields. To carry out this study, the existing publications on the guidelines for economic agricultural projects were reviewed and consultation was made with a For the post evaluation study of the land consolidation and on-farm development project, field survey in Jigok and other comparative area were made to get available information. According to the project completion report, Jigok land consolidation and on-farm development project has 55ha of benefit area out of 69ha of gross area. The project was started in November 11th, 2000 and completed october 30th, 2001. The total project costs were amounted to 2,548 million won and the annual project benefits were estimated at 335million won evaluated by domestic market prices. The ERR(Economic Rate of Return) and SRR(Social Rate of Return) of the project based on the shadow pricing system were estimated at 4.4% and 16% respectively. On the other hand, the ERR and SRR based on the domestic market value system were amounted to 6.37% and 14.62%. In conclusion, Korean land consolidation and on-farm development projects have not carried out from the view point of economic rate of return under shadow pricing system but from the view point of domestic pricing system. For the future feasibility studies on land consolidation projects have to be carried out including the non-market values as environmental and food security function of the projects.

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Study on improving the design of Outdoor Signage for Choenho-dong Rodeo Street

  • Jeong, Sang-Keun;Lee, Myung-Jin;In, Jin-Seong;Jeoung, Han-Ran
    • 디자인학연구
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    • 제20권2호
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    • pp.89-102
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    • 2007
  • Seoul suffers from over congestion of outdoor signage. Signage is on everywhere including on windows, on entrance way, on every available space on the building wall. The excessiveness is up to the point that decorating surface of a building is almost meaningless and most signage is lost in each other's profuse presence. The competition to attract more attention is resulting in bigger, brighter, and more stimulating signage. As the result, outdoor signage of Seoul have lost its intended function to provide useful information and befallen to be viewed as visual pollution. As it is an important visual element of city view, the outdoor signage also serves important role of delivering needed information in proper way to enhance convenience of city life. At the same time, it is a very important marketing tool that is essential to economic activity. Outdoor signage also holds enormous potential to act as a visual and structural element to improve city view just as a beautiful architecture does. However, outdoor signage that does not consider the harmony with its surrounding environment can only be treated as visual pollution. The effort of Seoul to better the city view by improving the outdoor signage started at Jong-ro area. By reforming outdoor signage, the streets of Jong-ro achieved much more harmonious and aesthetically pleasing city view. The study went through analysis of current status and characteristics of outdoor signage of Cheonho-dong Rodeo Street, Gangdong district to suggest detailed design solution to reform the roadside view and to revitalize the street.

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생명공학(生命工學) 인지도(認知度) 및 경제적(經濟的) 가치평가(價値評價) (Public Acceptance and Economic Evaluation of Biotechnology)

  • 임재환;현병환
    • 농업과학연구
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    • 제24권1호
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    • pp.75-84
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    • 1997
  • Modem biotechnology, specifically for the use of recombinant DNA(rDNA), has brought about a revolution in our ability to control and use life forms. Most of the world's leading countries view biotechnology as the key scientific and industrial discipline for the 21st century and are making all - out efforts for scientific and technological advance in the related fields. The impact of biotechnology on the nation's economy has been growing explosively as such diverse industries invested increasingly on the fruits of biotechnological research. However, such an impact could only be realized through concerted endeavours from the government to private sectors for guarantee of the successful technological advances in this scientific area. There are risks associated with every technology; the classical application of biotechnology has not been exempt. For example, the introduction of bio-tech to agriculture might be destroied the ecosystems. Therefore, to increase the research budgets by the government and private sectors, we need to identify the public attitudes and preference on the acceptance of bio-technology and on the potential economic value of it. For the study, we surveied 959 persons including students enrolled in college of agriculture, Chungnam National University. And to measure the economic value of biotechnology, we use the Contingent Valuation Method(CVM) which is considered as the new approaching method in the bio-technology field.

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지역경제개발에서 클러스터와 발전전략 (Clusters and Strategy in Regional Economic Development)

  • 에드워드 페이저
    • 산업클러스터
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    • 제3권1호
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    • pp.26-38
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    • 2009
  • 많은 지역개발 관련 정책결정자들이 클러스터 이론과 분석을 지역경제개발을 위한 일반적인 어프로치로 이해하는 경우가 많다. 이러한 관점은 흔히 정책결정자들로 하여금 실제 자신들의 지역이 처한 고유한 환경과 도전을 무시한 일률적인 정책 개입을 야기시킨다. 본 연구는 지역개발 정책에 있어 이론 뿐 아니라 경험과 직관, 분석 등을 종합적으로 중시하는 전략기획의 중요성에 초점을 맞추고 있다. 클러스터 이론과 분석은 이러한 전략기획의 과정에서 유용한 정보를 제공한다. 그러나 이것이 전략기획 과정을 아우르는 유일한 프레임이 되어서는 안된다는 점을 유념할 필요가 있다.

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행복경제학적 분석을 적용한 인간중심적 자연관과 생태중심적 자연관의 비교 (Happiness Economics Approach To Anthropocentric-Nature Perspective And Ecocentric-Nature Perspective)

  • 조승헌
    • 환경정책연구
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    • 제7권2호
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    • pp.49-66
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    • 2008
  • 본 연구는 경제적 가치와 환경가치를 유기적으로 결합시키는 행복경제학적 접근을 적용하여 자연관과 효용의 관계를 비교하고자 한다. 회귀분석을 수행한 결과 다음과 같은 사항을 발견할 수 있었다. 첫째, 본 분석에서는 자연관에 따라 행복함수 형태가 다르다는 것을 실증적으로 확인하였다. '인간중심적 자연관'의 가치체계는 경제가치중심이며 환경, 신뢰와 같은 비 물질가치 요소가 무시할 정도로 낮은 것임을 통계적 유의도를 통하여 알 수 있다. 둘째, '생태중심적 자연관'은 경제를 포함한 환경, 사람신뢰를 동시에 고려하는 중층적 가치체계를 가지고 있다고 할 수 있다. 그들의 가치체계에 따르면 인간의 편의와 경제적 가치에 치우친 행위는 행복극대화 관점에서 합리적이지 않다는 점을 분석 결과에서 알 수 있다.

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문화사회학적 시각에서 본 패션의 전략적 사용 (Strategic Use of Fashion: A View from Sociology of Culture)

  • 최샛별;진기남
    • 한국의류학회지
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    • 제31권9_10
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    • pp.1342-1351
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    • 2007
  • Using a data set drawn from 1419 college students, this study analyzes what implications clothing or fashion has on self-expression or image management in Korean society and who are more likely to use fashion as a image management tool in the process of interacting with others. Employing Pierre Bourdieu's concept of capital, we discuss three theories concerning correspondence between class and fashion: the theory focusing on economic capital in emphasizing the correspondence; the theory focusing on cultural capital in emphasizing the correspondence and the theory emphasizing relationships between fashion and other factors rather than class. Based on the theoretical examination, we select independent variables that can be grouped into status/class variables, or economic capital variables(such as subjective status, income, father's education, father's occupation) and socio-cultural variables, or cultural capital variables(such as possession of cultural capital, desire for upward mobility). Upon regressing strategic use of fashion on independent variables, we find that both status/class variables and socio-cultural variables are statistically significant in explaining the strategic mobilization of fashion for one's image production or social success. It shows that class as a form of economic capital has important effects on the strategic use of fashion, and cultural capital also has effects independent of economic capital.

부산대표도서관 건립의 경제적 타당성 분석에 관한 기초연구 (A Basic Study on the Economic Feasibility Analysis of Busan Central Library Construction)

  • 강희경;장덕현;이수상
    • 한국도서관정보학회지
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    • 제45권3호
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    • pp.489-511
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    • 2014
  • 본 연구에서 부산대표도서관 건립 기본계획 연구의 일부로 수행된 건립타당성 분석 중 경제적 타당성 분석에 대한 기초적인 작업을 수행하였다. 이를 위해 비용편익 분석과 순현재가치, 내부수익률의 방법을 활용하였다. 조건부가상가치법(CVM)을 활용하여 편익분석을 실시하였으며 부산대표도서관 건립부지를 중심지 또는 외곽지로 할 때의 값을 조사하여 비교분석하였다. 분석 결과, 중심지에 건립할 경우 부산대표도서관은 충분한 경제적 타당성을 갖는 것으로 나타났으며 외곽지에 건립할 경우 그렇지 않음을 확인하였다.

산불의 공간적 확산이 농촌지역경제에 미치는 영향 분석 (Analysis of Agricultural Regional Economic Effect by Spatial Dispersal of Wildfire in Korea)

  • 권영현;김의준
    • 농촌계획
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    • 제20권3호
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    • pp.67-74
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    • 2014
  • The purpose of this study is to estimate regional economic effects of spatial diffusion of wildfire using Cobb-Douglas production function of agriculture and forestry. The analysis is applied to Gangwon and Gyeongbuk provinces where are the most damaged of wildfire in Korea. The damaged areas are derived from multiplied by the occurrence probability of wildfire and diffusion areas of wildfire for micro-spatial unit level with ArcGIS techniques. The models of wildfire provides that the spatial diffusion of wildfire increases with the rising of highest temperature and average wind speed. Through the production function, value added of Agriculture and Forest sectors get damaged where the Cos-converted slope aspect of mountains are toward the South. The production model provides reductions of regional value added by increasing damaged areas of wildfire. It reveals that the most damaged region is Andong city in Gyeongbuk province, where value added loss is 1.25 billion Won, which is about 0.72% of total value added in agriculture and forestry of the city. As a view of policy makers, it needs to be considered to establish prevention policies against wildfires because regional economic losses from wildfire are depending on geographical conditions and performances of the major industry related to wildfire's diffusion such as agriculture or tourism sector according to the result of analysis.

농촌지도의 두 가지 관점의 비교;계량적 방법과 비(非)계량적 방법의 비교 (A Comparison between Two Viewpoints of Agricultural Extension;A comparison between economic and non-economic method)

  • 임형백;윤준상
    • 농촌지도와개발
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    • 제6권2호
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    • pp.105-118
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    • 1999
  • There are two viewpoints in agricultural extension. One is economics(econometrics) the is non-econometric social sciences. In Korea economic means mainstream economics. Most mainstream economists have tried to solve the social and economic problems of Korea using their basic principles and econometrics. This mainstream economics have been supported by the Korean government and many people due to its convenience, effectiveness, and clearness. However, Agriculture and agricultural extension should be studied through multidisciplinary approaches after considering their specific social structures. Especially, Korean agriculture and agricultural extension have many aspects that can not be easily explained by main stream economics. In this study, the researchers will; 1)identify the origin, growth, and limitation of mainstream economics, i.e. econometrics 2)identify the paradigm and the view of social sciences and out-of-mainstream economics to make up for the limitation of main stream economics in explain the agriculture and agricultural extension in Korea, and 3)suggest to use multidisciplinary approaches to solve the agriculture and agricultural extension in Korea.

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