• Korean System Dynamics Review
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• v.6 no.1
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• pp.125-145
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• 2005

The Sihwaho Project got off to a bad start, which led to a series of mishaps and an imbalance of the whole project. The purpose of this study is to select the case of Sihwaho as a research subject, clean up the contamination caused by the ill planned project, develop suitable measures to stabilize the lake environment, and find the implications of similar development projects. For this, the authorshave conducted three simulations after studying the structural reasons for the failure of the Sihwaho Policy by identifying cause and effect relationships, pre-testing a number of policy measures for the current lake project, and presenting measures for solving the contamination problem at the lake. The simulations have shown us that filling the lake with seawater is inadequate to solve the problem and that we also have to make efforts to reduce the volume of wastes to the lake as well. The authorshave also analyzed the degree of difference between the simulation and survey results for scenario 1, in which we have studied how much seawater can reduce the contamination of the Sihwaho Lake without the effort to reduce the volume of wastes into the lake. The survey showed that most citizens and employees of the Ministry of Environment did not think it would be serious as the simulation results pointed out, and the employees of the Ministry of Environment were more optimistic about the situation than the public.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.06a
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• pp.229-231
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• 2014

조선 프로젝트는 일반적으로 많은 블록 공정들을 거쳐 완성된다. 하나하나의 블록들이 일정에 따라 완성되면 다음 단계의 공정을 위한 플랜트로 이동하게 되는데 이러한 공정에 따른 블록 수송을 원활하게하기 위해 블록 수송계획을 세운다. 블록 트랜스포터는 블록 수송을 위한 주요 장비인데 트랜스포터의 일정 계획은 계획된 조선 프로젝트 완성을 위한 전체적인 일정 관리에 매우 중요한 문제이다. 본 연구에서는 트랜스포터의 일정계획 문제를 0-1 정수계획 모형으로 정식화하여 최적일정계획을 수립하는 방법을 제안하였다.

• Environmental and Resource Economics Review
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• v.16 no.3
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• pp.575-605
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• 2007

Korea's tidelands policy IS examined and criticized in the paper. Korea's major tidelands in the west coast might disappear within a decade. The anachronistic development IS driven by the political interest group, forming coalition for reclamation and busily fulfilling its own profits under the facade of public good and regional development. But all regions of the world have been gradually scrapping the massive reclamation projects since the 1970's and active movements to reverse the reclamation and restore the nature are on the rise. In 1978, the U.S. Supreme Court decided to suspend the construction of the dam and to protect the snail darter despite that over 100 million dollars had been injected. This court ruling became famous and caused the American public to change their perception about the environment. In the Netherlands, following a prolonged discussion on pros and cons of reclamation, open type seawall was adopted to strike a balance among the available alternatives. Japan's Ministry of Environment was praised for forming the National Wetland Committee in order to designate 20 new Ramsar sites by 2008, with an objective to reach 33 designated Ramsar sites. Away from the large-scale reclamation projects, Korea has to move towards smaller-scale projects focusing on the knowledege intensive and circular economy society that are more in harmony with the environment.