中国・台湾・韓国における用途別銅素材蓄積量算出
スポンサーリンク
概要
- 論文の詳細を見る
Recently, material stock accounting has been of interests to investigate the potentials of metal scrap recovery in designated areas. There are two approaches, a top-down approach and a bottom-up approach, for estimating the in-use stock of materials. Top-down approach uses time-series data of consumption and trade of materials and products' life time distributions, whereas bottom-up approach uses the numbers of product units in the designated area and its material use intensities. In this paper, the copper stock in China, Korea and Taiwan were divided into 7 end-uses and estimated by the top-down approach and/or bottom-up approach. The total copper stocks in 2005 were estimated as 25,000 Gg in China, 4,000 Gg in Korea and 2,600 Gg in Taiwan, whereas the ones in 1990 were 4,800 Gg in China, 900 Gg in Korea and 950 Gg in Taiwan. These results show that copper stock in these 3 countries has increased to almost 5 times in the past 15 years.
- The Japan Institute of Metals and Materialsの論文
The Japan Institute of Metals and Materials | 論文
- Control of Ferromagnetism in Magnetic Semiconductors and Application for Spin-polarized Electron Source
- 超高純度金属の実用化への道
- 非極性 GaN 層中の微結晶粒の効率的な検出と今後の展望
- Recycling Technology for Platinum Group Metals by Using Perovskite-type Oxides
- Specimen Preparation Methods with FIB for In-Situ TEM Observations in Materials Science—TEM Specimen Preparation by FIB with Glass Manipulator—