• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2021.11a
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• pp.129-131
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• 2021

Living Lab은 기존의 전문가 위주의 R&D 방법론을 탈피하여 각종 사용자가 연구 주체로 포함시키며 사회가 직면한 도면과제의 직접적 해결은 물론 R&D 성과물의 용이한 사업화가 가능하도록 한다. 본 연구에서는 이러한 Living Lab의 정의를 파악하고 각종 운영사례와 환경 분석을 통해 R&D에서의 Living Lab의 적용 방법과 보완점을 도출하여 Living Lab의 새로운 개념을 제시하고 이를 통해 향후 R&D 과제에서 어떻게 적용할 것인지에 대한 시사점을 제시하고자 한다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.10a
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• pp.367-370
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• 2004

본 연구에서는 lot-for-lot 정책으로 운영되는 불균등한 bargaining power를 갖는 단일 생산자와 단일 수요가로 구성된 공급망 시스템에서 생산자와 수요가의 생산량(또는 주문량)의 결정을 위한 통합 모델과 이에 따르는 통합효과의 적정 배분방법을 제안하고자 한다. Quantity incentive라는 개념을 고안하여 공급망 시스템에서 우위를 점하고 있는 생산자(또는 수요가)에게 수요가(또는 생산자)가 현재의 운영정책의 변경을 요구하고 이에 상응하는 보상금을 지불하는 형태의 조정방법을 제안하고자 한다. 이러한 과정을 통해 안정적인 공급망 시스템 운영을 위한 통합 효과의 적정 배분 방법을 추가적으로 제시하고자 한다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.10a
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• pp.574-577
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• 2004

본 연구에서는 lot-for-lot 정책으로 운영되는 불균등한 bargaining power를 갖는 단일 생산자와 단일 수요가로 구성된 공급망 시스템에서 생산자와 수요가의 생산량(또는 주문량)의 결정을 위한 통합 모델과 이에 따르는 통합효과의 적정 배분방법을 제안하고자 한다. Quantity incentive라는 개념을 고안하여 공급망 시스템에서 우위를 점하고 있는 생산자(또는 수요가)에게 수요가(또는 생산자)가 현재의 운영정책의 변경을 요구하고 이에 상응하는 보상금을 지불하는 형태의 조정방법을 제안하고자 한다. 이러한 과정을 통해 안정적인 공급망 시스템 운영을 위한 통합 효과의 적정 배분 방법을 추가적으로 제시하고자 한다.

• Journal of Korea Port Economic Association
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• v.25 no.2
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• pp.57-72
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• 2009

The purpose of this paper is to show the empirical measurement way of operation risk evaluation in domestic seaports for overcoming the limitations which the traditional DEA method has by using 13 Korean ports in 2003 for 4 inputs(birthing capacity, cargo handling capacity, number of coastal guard vessel, number o f coastal special guard vessel ) and 5 outputs(Export and Import Quantity, Number of Ship Calls, number of coastal accident, number of coastal crime, number of coastal pollution). Because traditional DEA method has produced the limited set of information, negative DEA mixed with tier, stratification and layering methods should be adopted. The goal of negative DEA is to set up DEA models that will place the poor operating ports on or close to the empirical frontier. The core empirical results of this paper are as follows. First, Donghae ports should benchmark the operation way of Yeasu, Busan, Woolsan ports in terms of the middle and longterm base. Second, 5 ports(ports of Taean, Yeasu, Tongyoung, Busan, Sokcho) which were revealed as the poor operating ports in Negative DEA analysis should benchmark Incheon, Woolsan, Pohan, and Donhae ports. The policy implication to the Korean seaports and planners is that Korean seaports should introduce the new methods like Negative DEA of this paper for predicting the poor operating in the ports.

• Journal of Environmental Impact Assessment
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• v.25 no.6
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• pp.487-501
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• 2016

This study aims to establish basic data of operating status for ecological learning facilities in Korea, investigate their characteristics for operating methods, and present proposals for the efficient operation and management of ecological learning facilities. For this purpose, a list of ecological learning facilities in Korea was established and 50 facilities were surveyed about the current status regarding the operation and management. Based on the survey, operation form, interpreter and volunteer, visitor, budget and revenue, promotion method, and other items were analyzed. Concerning the operating forms, most of the facilities were direct-operated facilities by government, and they are operating mainly by officials. Visitors are mostly families on weekends, while kindergarten children are main visitors during weekdays. Most facilities have higher proportion of visitors nationwide, and they get information mainly from websites operated by facilities and related organization. The annual operating budget and revenue depend on the facility size and operating forms, and the direct-operated facilities by government use higher budget compared to commission-operated ones. For the efficient operation of ecological learning, expert with specialized knowledge should participate in the operation, and intuitive and informative websites should be established and continually managed. In addition, it is necessary to support revenue of by national and local governments and to secure external funding network like local companies and donation.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.21 no.3
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• pp.139-149
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• 2010

This study determines the implementation status of the improvement being made to Korean university libraries. An e-mail survey was conducted targeting 24 Korean university libraries. Conclusions after analysing the responses of the survey were as follows:(1) 24 university libraries implemented 88 different methods of operating their libraries. In other words each library implemented an average 3.67 different methods operating.(2) Twelve universities initiated their improvement schemes in 2008, ten universities initiated their improvement schemes in 2007, nine universities initiated their improvement schemes in 2005, eight universities initiated their improvement schemes in 2010 and seven universities initiated their improvement schemes in 2009. Most university libraries implemented their improvement after 2005.(3) Most university libraries improvement schemes entailed online tours, special events, personal customized services, and SMS services. We noted that online reference services such as the Wiki Service, Twitter, Facebook, Cyworld were not initiated.

• Journal of Korea Water Resources Association
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• v.31 no.1
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• pp.95-103
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• 1998

Dam sediment can be predicted from the two methods: the one is a physical analysis based on the hydrjulic mechanism and the other is an empirical approach using observed data as a design factor. The former can be used to estimate short-term phenomena by mathematical methods. the latter can be used for deriving long-term design parameters such as dead storage calculation. Monthly reservoir operation is possible with the sluicing efficiency curve based on empirical data. The optimal sediment management can be carried out using the information variable which traces deposit sediments corresponding to the reservoir storage. The idea can provide an optimal operation strategy to save effective storage varying with time. This study presents a methodology for the long-term sediment prediction using sluicing efficiency curve. An application is conducted for estimating accumulated sedment deposit and water supply capability ofr the Fenhe dam in the Yellow rever of China.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.24 no.6
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• pp.177-182
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• 2010

As the technology is developing, the power system is also developing. Nowaday the power system operation has been complicated because of new technology development, new electric equipments and new operation method of the power system. As the electric equipments performance developing, the fault ratio of power system has been decreased. Therefore, new operation method is needed. More complicated the power system operation method, we need more the power system simulator to train and educate the novice power system operators. In this paper, we made real-time power system simulator using LabVIEW through the TCP/IP communication. With this simulator the instructor can simulate the trainee within various unpredicted cases that real power system could happen.

• Vending industry
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• v.10 no.2
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• pp.91-93
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• 2010

요즘 국내 캔자판기 운영사업을 펼치는 음료업체 경기도 좋지 못하다고 한다. 음료업체 입장에서는 장비를 우수 로케이션을 대상으로 무상으로 렌탈하는 경우가 많기 때문에 투자에 버금가는 수익이 나와 줘야 하나 현실은 그렇지 못한 경우가 많다. 물론 현행 캔자판기의 마케팅 구조상 해당음료사의 음료 홍보나 브랜드를 제고하는 효과를 제일 중시해야 할 것이다. 과거만 해도 이런 점 때문에 음료업체들이 캔자판기 운영사업에서 적자가 난다고해도 공격적인 투자를 불사하는 경우가 많았다. 하지만 이제는 캔자판기 운영사업의 효율과 수익성이 점점 중시되고 있다. 수익이 나지 않는 사업에 많은 투자를 할 수 없다는 분위기가 가중이 되고 있는 것이다. 따라서 이제 캔자판기 사업이 발전하기 위해서는 캔자판기 운영사업의 수익성을 제고시킬 수 있는 방안들이 적극 강구될 필요성이 있다. 이에 있어선 많은 방법들이 있겠지만 기존 업체 위주의 운영방식에서 개인사업 위탁화하는 방안도 검토해 봄직하다. 일본에서는 이미 오래 전에 이러한 시도가 있었다. 음료업체나 운영업체에서 자사 퇴직자를 활용해 개인사업 위탁화하는 방법인데 나름대로 장점이 커보인다. 국내는 음료업체가 직영하는 비중보다는 기계를 임대한 운영업체의 운영비중이 높다. 따라서 우리 현실에서는 중소 운영업체가 이 제도의 활용가치가 높아 보인다. 하지만 음료업체에서도 개인을 대상으로 이런 위탁화 사업을 확대하는 방안을 모색한다면 캔자판기 사업 확대의 새로운 전기를 맞을 수도 있을 것이다. 어떻게 이 제도를 활용하느냐에 따라 자판기 운영효율 향상의 새로운 국면을 모색할 수도 있는 것이다. 과거 일본에서 시도되었던 캔음료자판기의 개인 사업 위탁화의 한 사례를 국내 현실에 맞게 응용한다면 캔자판기 운영효율을 제고하는 대안이 나올 수 있지 않을까 생각된다.

• Water for future
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• v.25 no.1
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• pp.75-82
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• 1992

This paper presents a methodology of developing reservoir operating rules which can consider the reliability levels incorporated with the discharge policy. The operating rules were derived based on the regression and risk analysis of the optimally operated results by using the long term historical and generated reservoir inflows. The methodology was applied to the operation of the Chungju reservoir system which is consisted of two reservoirs and powerplants, and monthly operation rules were developed. Simulations were performed by using the developed operating rules can not only significantly improve the output from the existing system but also improve the reliability incorporated with the output.