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        검색결과 5

        2.
        2011.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In order to make a (CZTSe) sputtering target sintered for solar cell application, synthesis of CZTSe compound by solid state reaction of Cu, Zn, Sn and Se mixed powders and effects of ball milling condition on sinterability such as ball size, combination of ball size, ball milling time and sintering temperature, was investigated. As a result of this research, sintering at after ball milling using mixed balls of 1 mm and 3 mm for 72 hours was the optimum condition to synthesis near stoichiometric composition of and to prepare sintered pellet with high density relatively.
        4,000원
        3.
        2008.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
          Industrial society has changed to information society in these day. Even through the core issue of information society is the creation of competency and profit of corporations, the implementation of SCM packages is not popular. The reason why companies
        4,200원
        4.
        2004.10 구독 인증기관 무료, 개인회원 유료
        This paper addresses the financial performance effect according to the implementation of SCM packages. Eight financial performance measures were selected based on the literature review. KIS-FAS2004 data on the fifteen companies that implemented SCM packages before December, 2003 were collected to test the effect of SCM implementation. The obtained experimental results show that there are some differences on financial performance measures between before and after the SCM implementation.
        4,000원
        5.
        2001.10 KCI 등재 서비스 종료(열람 제한)
        In recent years, the demand of activated carbon has been increasing steadily because of the environmental problems. Among them waste and water treatment and removal of poisonous gas were involved. Therefore, in this study, activated carbon was made from the waste chinese cabbage and measured the iodine adsorption ability, carbonization yield, and activation yield of the produced activated carbon. The result showed that the carbonization yield was decreased when carbonization temperature was increased and that the optimal carbonization temperature was 600℃. The optimal concentration of NaOH for removing ash in the raw sample was 1∼2N. The range of iodine adsorption number of activated carbon using chinese cabbage at 600℃ carbonization was 610.82㎎/g to 1019.58㎎/g. The activation result of carbonization sample showed that the optimal activation condition was the carbonization at 400℃ and the activation at 700℃. So the production of activated carbon using chinese cabbage was possible in the aspect of reuse of resource and decrease of environmental pollution compared to the commercial activated carbon.