• Economic and Environmental Geology
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• v.53 no.6
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• pp.755-769
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• 2020

In 2019, about 134 million ㎥ of aggregate was produced in an estimated 880 quarries and pits in 17 metropolitan governments. Leading producing metropolitan cities were Gyeonggi-do, Gyeongsangnam-do, Chungcheongbuk-do, Gangwon-do, Gyeongsangbuk- do, Chungcheongnam-do, in order decreasing volume, which together accounted for about 71% of total product. Of the total domestic aggregates produced in 2019, about 31 % was sand and about 69% was gravel. It estimated that of the 134 million ㎥ of aggregates in Korea in 2019, about 50.3% was produced by screening crushed aggregate by 41.4% by forest aggregate, 3.3% by land aggregate, 1.7% by sea aggregate and 1.7% by washing each other, and 0.7% by river aggregate. This indicates that screening crushed aggregate and forest aggregate are the main producers of domestic aggregates. The most crushed and forest aggregate was extracted at the Gyeonggi-do and Gyeongsangnam-do, respectively. Land aggregate was mainly extracted at Gyeongsangbuk-do and Gangwon-do. Therefore, in the future supply and demand of aggregate resources, it is judged that there should be a primary policy direction for screening crushed and forest aggregate.

• Journal of the Korean earth science society
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• v.30 no.7
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• pp.921-925
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• 2009

It is introduced briefly to understand the overall state of mineral resources of Argentina profile of 30 major ore deposits and mining projects. Prospecting deposits are mostly concentrated on the Northwestern and Midwestern area in Argentina and this fact implies that deposit formation is strongly related to Andean Orogeny. Argentina is important mineral exporting country for copper, gold, silver, lead, zinc, lithium and boron. For a long-term strategy of fuel energy and mineral supply active cooperation of geological research and mine business between Korea and Argentina is needed.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.658-659
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• 2011

수요반응제도는 계통운영자(System Operator) 또는 전기판매사업자가 전력수급 불균형으로 인한 전력계통 비상상황 또는 도매 전력시장가격의 급등 시 위험을 회피하기 위한 유용한 도구이다. 본 논문에서는 계통운영자인 전력거래소가 운영 중인 비용평가 기반의 현 CBP 시장에 부하를 감축할 수 있는 수요자원이 새로이 참여하게 될 경우를 가정 현 가격결정 프로그램 시뮬레이션을 통해 전력공급비용 측면과 판매사업자 구입비용 측면에서의 그 경제적인 가치를 각각 유추하였다.

• Proceedings of the KIPE Conference
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• 2009.11a
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• pp.259-261
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• 2009

에너지 자원의 고갈과 환경 문제들이 화두가 되면서 전 세계적으로 에너지의 효율적인 활용을 위해 관심이 집중되고 있다. 이러한 상황에서 에너지 자원을 전적으로 수입에 의존하고 있는 우리나라는 전력의 수급안정 및 소비 절약을 위해 수요관리가 무엇보다 중요한 실정이다. 이미 수요관리의 중요성을 인지하고 여러 방법을 통하여 전력수요를 관리해 오고 있으나 아직까지는 많은 문제가 따르는 상황이다. 수요관리의 한 방법으로 하계기간에 전력소모량의 가장 큰 비중을 차지하는 에어컨의 피크시간대 제어를 통하여 수요를 조절하는 방법이 있다. 기존에 운영되던 원격에어컨 제어 방식은 제어가 단 방향 통신이라는 점과 별도의 통-신비용이 부담되는 등 문제점을 가지고 있다. 본 논문에서는 PLC 통합검침 인프라를 통한 양방향 원격에어컨 제어 시스템을 구현하여 전력수요의 효율적인 관리의 방법에 대해 제안하고자 한다.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.535-536
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• 2015

장기적인 에너지 수급 불안정과 기후변화에 대응하여 지속 가능한 에너지 공급체계인 신재생 에너지의 이용은 1차 에너지 소비 절감을 위한 중요한 요소로 인식되어가고 있다. 이에 국내 총 에너지 소비량의 약 25%를 차지하는 건물 분야에서도 신재생 에너지원의 적용을 확대함에 따라 생산과 소비 최적화를 통한 효율적인 통합 운용 및 제어가 가능한 건물에너지관리시스템의 필요성이 부각되고 있다. 본 논문에서는 신재생 분산자원을 도입하여 건물에너지관리시스템을 구축 및 실증하고 그에 따른 에너지 절감효과를 분석하였다.

• The monthly packaging world
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• s.284
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• pp.104-105
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• 2016

기획재정부(장관 유일호)와 환경부(장관 조경규)는 빈용기보증금 인상 차익을 목적으로 빈용기를 사재기하지 않도록 '빈용기 매점매석행위 금지 등에 관한 고시(이하 고시)'를 11월 1일부터 시행한다. 정부는 사재기가 확산되면 제조사의 빈용기 수급부족, 원가상승으로 인한 주류가격 인상 등 서민 물가영향으로 이어질 우려가 있어 '물가안정에 관한 법률'에 따라 이번 고시를 제정했다. 고시에 따른 매점매석 금지 대상은 '자원의 절약과 재활용촉진에 관한 법률'에 따른 보증금 대상 주류 청량음료 등의 빈용기에 한정한다. 이번 고시에 따라 환경부는 지방자치단체, 한국순환자원유통지원센터와 함께 11월부터 내년 3월까지 지역별 합동 단속반을 구성한다. 다음에 빈용기 매점매석행위 금지 등에 관한 고시의 상세 내용을 살펴보도록 한다.

• Environmental and Resource Economics Review
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• v.21 no.4
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• pp.777-807
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• 2012

This study analyzed the impacts of FTAs (Free Trade Agreements) actively being promoted by the Korean government on the Korean economy, energy consumption and greenhouse gas (GHG) emissions and found the policy implications in terms of the linkage amongst them. The simulation analysis by using a global CGE model, KEEI-GCGE, found that the effectuation of Korea-USA, the Korea-EU and the Korea-China-Japan FTAs at the same time would increase the real gross domestic product (GDP) of Korea by 2.04%. In addition, the energy consumption and GHG emissions of Korea are estimated to increase by 3.33% and 1.53% respectively. These results imply that the various medium and long-term plans and policies related to energy and GHG emissions in Korea should systematically reflect those potential impacts of the FTAs.

• Environmental and Resource Economics Review
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• v.21 no.3
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• pp.543-572
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• 2012

This paper compared historical energy use from 2000 between Japan and Korea and reviewed literature of mid-and long-term low carbon energy scenarios and plans in both countries released since 2000. In terms of energy use pattern, there are similarities between Korea and Japan; high dependence on energy imports, high proportion of manufacturing industry among OECD countries, closed electricity system disconnected with foreign countries, and high proportion of nuclear power generation with low proportion of renewable electricity despite of high potential of renewable energy. Differences are as follows; decreasing trend in Japan and increasing trend in Korea in terms of energy demand and supply, difficulty of exchanging electricity between regions in Japan unlike Korea, and prospect of nuclear power, that is, curtailing in Japan while expanding in Korea according to governmental plan. Energy Basic Plan in both countries established before nuclear accident in Fukushima required expanding about two times of nuclear energy by 2030, while civil society's energy scenarios suggested reducing energy demand, phasing-out nuclear power, and expanding renewable energy. This paper will serve as a base for future studies about long-term energy scenarios and plan in Japan and Korea.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.625-628
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• 2009

Busan was wasteland of visual industry, But It has been undergo a complete change visual industry city since It was started 1st Busan International Film Festival(PIFF) in 1996. It promoted Cineport Busan, 1st step. promotion age 'good city film' 2004, 2nd step. settlement age 'good city produce movie' from 2005 to 2007, now 3rd step. development age settle down visual industry and progressing project for make importance place produce movie. so, employment problem of region visual human resources. It is indispensable element for become real region industry in visual industry. So that, this study analyzes what is problem of visual industry and human resources in Busan city. Then inquired what will happen supply region visual human resources through visual importance city Busan development plan.

• Resources Recycling
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• v.31 no.2
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• pp.3-11
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• 2022

Owing to the global development of high-strength alloys and renewable energy industries, the demand for vanadium, a key raw material in these industries, is expected to increase. Until now, vanadium has been recovered as a by-product of the industry, but interest in its direct recovery from minerals has increasing with its significantly increasing demand. In particular, the recovery of vanadium from stone coal ore and vanadium titano-magnetite (VTM) containing vanadium has been actively researched in China, which has the largest reserves and production of vanadium in the world. In Korea, a large amount of VTM also occurs in the northern part of Gyeonggi-do, and fundamental research and technical development is being conducted to recover vanadium. It is necessary to understand the current status of the separation technology used worldwide to satisfy the demand for metals such as vanadium, which currently depends on imports.