• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.329-330
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• 2016

정부의 공공데이터 활성화 전략에 의해 행정기관과 공공기관의 정보공개 및 재이용이 활발해 지고 있다. 이러한 분위기와 함께 민간에서의 공공데이터 활용이 점점 늘어나고 있다. 하지만 당초 기대치에 못 미치는 성과와 공공데이터 개방하는 기관에는 정보화시스템을 운영하는 비용은 증가하였다. 따라서 상대적으로 민간에서 선호하는 문화관광 공공데이터를 통해 공공데이터의 효율성을 분석한 후 시사점을 도출한다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.28 no.4
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• pp.203-221
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• 2017

This study is to suggest some improvement directions of the criteria for the management evaluation in order to contribute to the achievement of lasting value of the continuous development and publicity in regard to the public library means-efficiency. To this end, This study analyzed the means-efficiency evaluation criteria via theoretical review on business analysis of private enterprise and the analysis framework based on it. The improvement of evaluation criteria in regard to efficiency for the continuous development of public library are as follows. 1) Regardless of domestic and foreign, an efficiency index in the performance evaluation index of public library is absolutely insufficient. The sufficient indexes measuring efficiency which is appropriate for the concept of performance should be developed. 2) A flow data representing input and performance in certain time period is insufficient. Therefore, evaluation index consisted of flow data should be more developed. 3) Long term stock data is excluded in the term cost as it is the cost used for the long term such as fixed assets. However, it is useful as input data, which is realized through the perfect accounting.

• Journal of the Korean Society for Library and Information Science
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• v.37 no.4
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• pp.53-68
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• 2003

This study is an attempt to re-examination of information value and it´s economic efficiency from the viewpoint of information science. This study focuses on the analysis of the considerable discussions about added value of information and cost-benefit analysis of information. This study shows that the researches of information value or value-added information have dealt with the effect of information use and the measuring information efficiency concerns cost-benefit analysis of information services. A case study on ‘the national digital library program’ is also demonstrated as a pilot model for the cost-benefit analysis of information services.

• Economic and Environmental Geology
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• v.46 no.3
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• pp.247-256
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• 2013

In order to improve the quality assurance of the disaster mitigation projects, the economic effect of these projects in the hazardous areas was analysed. Eight project sites were selected for analyses based on the disaster data during the previous 10 years, and the investment effect was evaluated using a benefit cost ratio (B/C). The benefit was estimated using the historical disaster data and presumed to continue for 30 years, while the cost was assumed with the total project cost. Analysis results indicate the B/C ratio is larger than 1 in the difference range, depending on factors such as impact areas and discount rates. According to the analysis results, the average B/C of the eight projects is 4.1 with assuming the discount rate of 4% and the impact diameter of 5 km, which implies that a disaster management project in hazardous areas will give the positive investment effects.

• Journal of the Korean Society for Railway
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• v.15 no.2
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• pp.179-184
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• 2012

Environmental impact is getting more attention in many feasibility studies for railroad-related projects and research items. For sustainable growth and green transportation, the benefits typically used for feasibility studies in railway-related projects, are composed mostly of economic criterions which is not considering growing attention on changing paradigm. Based on the analysis of current methodologies, improvements in estimating environmental impact especially on noise and pollution are suggested. Active steering bogie has been proposed to satisfy stabilizing and steering performance of railroad. This paper describes the feasibility study of the active steering bogie for a urban railway vehicle based on environment-related criteria.

• Journal of the military operations research society of Korea
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• v.32 no.2
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• pp.1-20
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• 2006

In modern marketing environment, we are more interested in logistics as industrial structure is complicated and globalized. Most companies focus on reducing the cost price. So a lot of companies study on cost estimation logistics. However, it Is very difficult to estimate the cost of logistics. Thus they mainly use linear method such as the simple distance of transportation. This study defines the cost of logistics, structure & network of military logistics and proposes the costing estimation model in the logistics. We apply to battle shoes which are the main clothing in the military. In the result, we found some differences on the rate of cost structure between military and civil companies. This study can be used directly to the decision making for optimal military logistics alternatives and contribute to the efficient operation of military budget.

• Proceedings of the KSR Conference
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• 2009.05a
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• pp.1395-1411
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• 2009

The Korea railroad industry has experienced the operating deficit annually since 1980. And the ridership has been reduced since 1990. Therefore, a structural reform of the Korea railroad industry conducted at 2003. Basic principles of their structural reform are no differences among the Korea and advanced counties. But different outcomes depending on each country situation appears. These cost functions appear the existence of all economic of scale. And when increase the average transport distance annually, the average cost reduce annually. The results of structural reform by comparing before and after, the average cost was lower than previously. The Structural reform and the operation of the KTX, the two effects at the same time, the synergy effect has occurred. Because of the synergy effect, the performance is estimated to be larger. Due to the effective operation of structural reform that could reduce costs.

• 한국신재생에너지학회:학술대회논문집
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• 2011.11a
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• pp.36.1-36.1
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• 2011

풍력개발 기술이 발전함에 따라 풍력발전시스템이 점차 대용량화되는 추세이며, 경제성 있는 풍력단지 건설을 위해 점차 대단지화 되어가고 있는 실정이다. 이로 인해 풍력 발전단가(Cost of electricity, COE)도 개선되고 있다. 풍황이 양호한 풍력발전단지의 경우, 풍력발전 COE는 현재 50~60원/kWh 수준으로 타 신재생에너지원에 비해 경쟁력이 높고, 석탄 화력의 COE와 비교해 봐도 동등한 수준 혹은 더욱 경쟁력 있는 수준으로 감소하였다. 풍력발전단지 조성을 위해서는 시스템의 효율과 고효율, 저비용의 풍력발전시스템을 풍황이 좋은 지역에 설치할 때 낮은 COE를 가지는 경제성 있는 발전단지가 가능하다. 동급 용량 풍력발전시스템을 같은 지역에서 설치하여 에너지생산량을 증대시키기 위해서는 블레이드 지름의 증가시켜 유량을 증가시키거나 타워의 높이를 증가시켜 풍속을 증가시키는 방안이 있다. 이 경우 블레이드 길이와 타워 높이 증가에 의한 시스템 비용의 증가가 발생하는데, 에너지생산량 증가에 의한 수익비용과 시스템 비용 증가에 의한 자본비용은 서로 반비례로 영향을 미친다. 이를 위해 최소의 COE의 최대의 순현재가치(Net Present Value, NPV)를 갖는 목적함수로 두고 블레이드의 최적 길이와 타워의 최적 높이를 선정하였다.

• Proceedings of the Korea Society for Simulation Conference
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• 2002.11a
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• pp.131-136
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• 2002

최근 전장환경의 급격한 변화와 고도화된 과학기술로 인해 무기체계의 성능은 매우 발전되었으며 세계 각국은 고성능, 고효율의 최신 무기체계 개발에 역량을 집중하고 있다. 개별 무기체계에 대응하여 새롭게 개발된 무기체계는 기존 무기체계에 대한 패러다임을 뛰어넘어 새로운 개념과 운용방식을 요구하고 있다. 무기체계의 효과를 규명하고 검증하기 위한 수단으로 가장 적합한 것은 실제전장에 무기체계를 투입한 실기동 실험을 통해 효과를 분석하는 것이다. 그러나 무기체계 효과분석을 위해 실기동훈련을 계획하고 실시하는 것은 비용 뿐 아니라 군사력 동원면에 있어서 비효율적이고 부담이 높은 단점이 있으므로, 국방시뮬레이션 기술을 활용하여 저비용 고효율의 모의분석을 실시함으로써 계량적인 효과분석을 수행하고 수치화된 판단 근거를 제공하는 것이 보다 바람직하다고 할 수 있다. 본 고는 대대급 이하 소부대의 전장상황에서 지상군 단위무기체계의 효과 분석을 수행할 수 있는 국방 시뮬레이션 모형의 개발 방향을 제시한다.

• Proceedings of the KOR-KST Conference
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• 2007.11a
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• pp.87-96
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• 2007