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중국 물류환경변화에 따른 우리 물류기업의 글로벌화 전략
이신규,주용길 한국무역연구원 2013 무역연구 Vol.9 No.1
The purpose of this study is to analyze the present situation and problems that Korean international freight forwarders are facing and to present efficient strategies for the globalization of korean forwarders. Korean logistics providers have some problems such as small scale of organization and capital, decrease of income due to fierce competition, lack of transportation system and SOC, shortage in professionals in international logistics, business practice based on interpersonal business relationship rather than business capabilities between shippers and carriers and etc. It is necessary for international freight forwarders to be globalized. Government and shippers should do their best respectively to pursue the right policies for the globalization of international freight forwarders. The freight forwarders and government need to construct logistics networks, develop logistics markets actively, raise professionals in logistics, be global logistics providers and enlarge or specialize their services to overcome the serious competition in these rapid and immeasurable situations. Also shippers and freight forwarders need to do their business based on their business abilities to serve quality logistics services.
Trichlorosilane 합성에 있어서 CuCl2 의 촉매로서의 역할
이임열,고경신,주용길 대한금속재료학회(대한금속학회) 1976 대한금속·재료학회지 Vol.14 No.1
The CuCl₂-catalyzed reaction of silicon metal powder and hydrogen chloride by the flow method is studied in order to find a convenient method of obtaining trichlorosilane (TCS), a widely used starting material for preparing semiconductor-grade silicon. The effects of varying the concentration of CuCl₂, reaction temperature, and the flow rate of HCl are studied. The optimum temperature for the reaction is found to be the range between 385℃ and 420℃, and as the temperature increases beyond this range, tetrachlosilane (TET) content of the product becomes high. The yield of TCS is found to increase when the flow rate of HCl increases. Under the optimal conditions with 10 wt, % CuCl₂ concentration, 400℃ reaction temperature and the flow rate of 400-600㏄/min, the yield of TCS is about 90 wt, % of the total product.