• Title/Summary/Keyword: 자원소비량

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Productivity Measurement in Network Industry: An application to international gas industry (네트워크 특성을 고려한 생산성 분석방법론 : 천연가스산업 국제비교 응용을 중심으로)

  • O, Gyeong-Jun;Lee, Jeong-Dong;Kim, Tae-Yu
    • Environmental and Resource Economics Review
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    • v.9 no.1
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    • pp.93-125
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    • 1999
  • 본 연구에서는 네트워크 특성을 반영하여 생산성을 분할함에 있어 1인당 소비량 효과, 소비자 밀도 효과, 시스템 규모 효과 등을 추가적인 원인요소로 고려하는 네트워크 산업 생산성 분석 방법론을 제시하고, 이 방법론을 천연가스산업에 적용하여, 한국, 미국, 캐나다, 프랑스, 이태리, 일본의 가스산업 생산성에 대한 국제비교분석을 수행하였다. 실증분석 결과, 미국과 캐나다의 경우, 생산성 증대(productivity growth)의 가장 주요한 요소가 1인당 소비량 증대 효과로 나타났으며, 일본과 프랑스의 경우 기술진보, 그리고 이태리의 경우 주로 소비자 밀도변화를 통해 생산성 증가가 이루어졌음을 알 수 있었다. 한국의 경우에는 시스템 확장과 1인당 소비량 증가가 생산성을 증가시킨 주요 요인으로 나타났다. 또한 생산성 수준 격차의 국제비교 결과, 한국의 생산성 수준은 일본을 제외하고 가장 낮은 수준에 있으며, 이러한 생산성 격차 (productivity difference) 의 주원인은 1인당 소비량 차이에서 발생한 것으로 분석되었다. 따라서 생산성 증대를 위해서는 1인당 소비량 증진을 위한 산업 정책의 추진이 가장 긴요한 것임을 알 수 있었다.

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Trend and Prediction of Environmental Resources Consumption in the Korean Peninsula (한반도 단위의 환경자원 소비량 추이와 예측)

  • Yeo, Min Ju;Kim, Yong Pyo
    • Journal of Environmental Impact Assessment
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    • v.25 no.4
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    • pp.261-279
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    • 2016
  • Trends of food and energy consumptions in South Korea, North Korea, and the Korean Peninsula were shown and consumptions of food and energy for the integrated Korean Peninsula with several Cases were predicted, and the directions for the environmental resources management were suggested in this study. The Food Supply Quantity, the Protein Supply Quantity, and the Food Supply of North Korea were less than those of South Korea, the Eastern Asia, and World after 1990s. However, it is expected that the food consumption in North Korea will increase, if two Koreas are integrated. If the Food Supply Quantity of North Korea is the same as that of South Korea with the maximum projected population of integrated two Koreas by 2055, the food consumption in the Korean Peninsula would increase by 25% compared with the 2011 food consumption of integrated two Koreas. Thus, the choice of diet should be carefully considered and the increase of agricultural productivity is required. Energy consumption in North Korea is very small comparing to that of South Korea and fraction of coal in energy usage of North Korea is very high. If the energy consumption per capita of North Korea after integration be the same as that of South Korea in 2011, the energy consumption in the Korean Peninsula would increase by 45% compared with the 2011 energy consumption of integrated two Koreas. To minimize the environmental effects caused by energy consumption, the energy plan with the reduced fraction of coal in energy supply of North Korea should be adopted and advanced technology with higher efficiency should be applied to establish or expand the energy facility in North Korea.

Electric Power Situation of France (불란서의 전력사정)

  • 김재환
    • 전기의세계
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    • v.20 no.4
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    • pp.49-58
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    • 1971
  • 블란서 본토의 에너지자원은 북부에서 생산되는 석탄, 삐레네 산록지대의 천연가스와 알프스산맥, 삐레네산맥 및 중앙산지에 분포되어 있는 수력자원이 있으나 국내에너지소비량을 충족하기에 부족한 형편이므로 인접국가로부터 석탄, 석유 및 전기의 수입에 의존해오고 있으며 블란서의 전력은 수력, 화력 및 원자력을 합해서 나라전체 에너지소비량의 약 11%를 감당하고 있는데 아래에 EDF(블란서 전력공사)의 1969년도 보고서(Report)를 중심으로 한 블란서의 전기사정을 살펴보기로 한다.

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Urban Mine Resources and Metal Recycling in Korea (한국(韓國)의 도시광산(都市鑛山)(사용후제품) 자원(資源)과 금속재자원화(金屬再資源化))

  • Oh, Jae-Hyun;Kim, Joon-Soo;Moon, Suk-Min;Min, Ji-Won
    • Resources Recycling
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    • v.20 no.6
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    • pp.3-18
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    • 2011
  • In order to review the recycling status of urban mine resources in Korea, metal consumption, metal stock reserves and metal scraps and wastes such as iron scrap, end of life vehicles(ELV), E-waste were surveyed. In making up the list of the metal consumption, the statistical data from the Korea Non-Ferrous Association, the Korea Iron and Steel Association, the HS code of Korea Custom Service, the symposium and the related companies were collected. Finally, "Principle uses and recycling potential of metals in the periodic table" by T.E.Graedel was introduced. This paper suggested the key point for development of urban mine resources.

Forecasting of Electricity Demand for Fishing Industry Based on Genetic Algorithm approach (유전자 알고리즘에 기반한 수산업 전력 수요 예측에 관한 연구)

  • Kim, Heung-Soe;Lee, Sung-Geun
    • Journal of the Korea Convergence Society
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    • v.8 no.1
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    • pp.19-23
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    • 2017
  • Energy is a vital resource for the economic growth and the social development for any country. As the industry becomes more sophisticated and the economy more grows, the electricity demand is increasing. So forecasting electricity demand is an important for electricity suppliers. Forecasting electricity demand makes it possible to distribute electricity demand. As the market for Negawatt market began to grow in Korea from 2014, the prediction of electricity consumption demand becomes more important. Moreover, power consumption forecasting provides a way for demand management to be directly or indirectly participated by consumers in the electricity market. We use Genetic Algorithms to predict the energy demand of the fishing industry in Jeju Island by using GDP, per capita gross national income, value add, and domestic electricity consumption from 1999 to 2011. Genetic Algorithm is useful for finding optimal solutions in various fields. In this paper, genetic algorithm finds optimal parameters. The objective is to find the optimal value of the coefficients used to predict the electricity demand and to minimize the error rate between the predicted value and the actual power consumption values.

Mineral Economic Index and Comprehensive Demand Prediction for Strategic Minerals: Copper, Zinc, Lead, and Nickel (자원경제지표와 주요 금속의 중.장기 수요 예측 -아연, 납, 구리, 니켈을 중심으로-)

  • Choi, Soen-Gyu;Kim, Chang-Seong;Ko, Eun-Mi;Kim, Seong-Yong;Jo, Ho-Young
    • Economic and Environmental Geology
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    • v.41 no.3
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    • pp.345-357
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    • 2008
  • Korea has been one of the top ranked countries in the per capita and total consumption of Cu, Zn, Pb, and Ni since economic development based on manufacturing industries. The current instability of mineral demand and supply in Korea is likely to continue or exacerbate in accordance with economic growth in developing countries such as BRICs. Korea needs to increase the self-development portion of strategic mineral resources including Cu, Zn, Pb, and Ni. Our analysis of mineral demand and supply data predicts a long-run instability of supply and demand for main minerals used in the Korean manufacturing industries, and suggests a long range government policy for stable supply of core mineral resources.

Analysis of Global Trends on Resource Productivity and Its Promotion Strategy (자원생산성의 국내외 추이 분석 및 관리 방안)

  • Kang, Hong-Yoon
    • Resources Recycling
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    • v.29 no.3
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    • pp.24-35
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    • 2020
  • Management of resource productivity is important for the reduction of natural resources and energy consumption. This is closely linked to circular economy which has recently been stressed worldwidely. Resource productivity is a key indicator which is to be managed in various industry sectors. Especially Korea which is heavily dependent on the natural resources import from overseas needs to give attention to this point. Nevertheless resource productivity related domestic researches and policies are extremely rare. This paper thus presents trends on resources productivities and their management policies of European countries and OECD G7 countries compared to the situation of Korea. In addition, the decoupling phenomenon of DMC (domestic material consumption) and GDP of Europe is analyzed and the resource productivity promotion strategy of Korea is proposed.