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최병철 한국무역연구원 2010 무역연구 Vol.6 No.2
This paper decomposes China's phenomenal export growth along various dimensions. It finds that the export structure is changed dramatically from 1992 to 2006, with China moving out of agriculture and apparel and into electronics and other more sophisticated manufactures. As China moves up the value chain, both its imports and exports have become more sophisticated than in the past. As a result of these shifts, China may be becoming more exposed to fluctuations in the strength of the global economy. Korea's exports to China will be affected by sophistication of China's exports because the ratio of parts and components are so high in exports to China. As a result of changes in China's exports structure, Korea's trade balance with China decreased in 2006 for the first time. This paper finds that the imports increases of parts and components from China, the decrease of processing trade and the increased domestic sourcing may be the important factors in the decrease of Korea' trade balance with China.
발수코팅된 커피박을 혼입한 벽돌용 모르타르의 압축강도 및 흡수율
최병철,김규용,편수정,김문규,이예찬,남정수 대한건축학회 2023 대한건축학회논문집 Vol.39 No.5
Recently, as the amount of coffee consumption increases, the amount of spent coffee grounds increases, but the amount recycled is small andutilization in the construction field is insufficient. Therefore, in this study, the properties of mortar and the quality of bricks were evaluatedby replacing a part of the amount of cement used with spent coffee grounds coated with a water repellent. As a result, the mortarincorporating the spent coffee grounds coated with the water repellent improved the compressive strength, density and absorption ratiocompared to the mortar incorporating the spent coffee grounds not coated with the water repellent. In addition, the quality of the bricksmanufactured based on the appropriate replacement ratio of the water repellent coated spent coffee grounds satisfied all KS standards. Therefore, it is considered that the appropriate W/B for manufacturing bricks is 38%, and the appropriate replacement ratio of water repellentcoated spent coffee grounds is up to 6%. 커피소비량이 증가함에 따라 커피박 발생량이 증가되지만 재활용되는 양은 적으며 건설분야에서도 활용이 미비하다. 따라서 본 연구에서는 시멘트 사용량의 일부를 발수제로 코팅된 커피찌꺼기로 치환한 모르타르의 물성과 벽돌의 품질을 평가하였다. 그 결과, 발수제로 코팅된 커피박을 혼입한 모르타르가 발수제로 코팅시키지 않은 커피박을 혼입한 모르타르 대비 압축강도, 밀도 및 흡수율이 향상되었다. 또한, 발수코팅된 커피박의 적정 치환율을 기반으로 제작한 벽돌의 품질은 KS 기준을 모두 충족하였다. 따라서, 벽돌의 제작을 위한 적정 W/B는 38%, 발수코팅된 커피박의 적정 치환율은 6%까지라고 사료된다.
최병철 한국무역연구원 2010 무역연구 Vol.6 No.4
Recently, Korea's total export is increased and Korea overcomes from the financial crisis due to the export to China. This paper analyzes the changes of Korea's trade structure to China after financial crisis. Chinese government will focus on the expansion of domestic consumption to maintain the stable economic growth after financial crisis. According to such changes of Chinese economic policies after financial crisis, the Korea's trade structure to China will be affected. This paper finds some characteristics of Korea's trade structure to China after financial crisis. First, Korea's export to China have a tendency to synchronize with China's export. Second, the ratio of export to the firm of foreign direct investment at China is so high in Korea's export to China. And still the ratio of export of parts and components to the Korean company in China are so high. Third, after financial crisis, export of special products which are related with Chinese policies to overcome the recession, is increased. Finally, the import substitution of intermediate goods is taken so quickly by the sophistication of Chinese industry.
최병철 한국무역연구원 2011 무역연구 Vol.7 No.1
After agreements of Bali Roadmap, Korea will become an emission obligation nation to reduce greenhouse gases on Post-2012. And the study of effective emission reduction policies will be increased. This paper analyzes the policies of GHGs's reduction, Carbon Taxes and Emission Trading System. It is advisable that policy mix is used to achieve the GHG's reduction. And according to the demand of energy, discriminative or adequate policy mix is desirable.