• Journal of Technology Innovation
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• v.22 no.3
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• pp.65-100
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• 2014

We tried to find out the technological innovation properties of the National Research and Development Projects (NRDPs) through scientometric analysis of patent data generated by the NRDPs. The distribution of technology groups in patent data shows that NRDPs are highly focused on the Information Technology(IT) group. The Relative Cites Index(RCI) analysis implies that the Biotechnology(BT) group will emerge in the future. The Relative Family Indices(RFIs) are high among the high technological impact groups such as BT and IT. We defined new measures related with technological convergence and collaborativenessopenness relations among R&D agents. Using network analysis techniques, we analysed the absorption-derivation relations among technology groups and the opennesscollaborativeness relations among R&D agents. Recently, both the share of hetero-plural technology groups and the collaboration among different R&D agents are increasing.

• Journal of Korea Society of Industrial Information Systems
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• v.14 no.4
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• pp.205-212
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• 2009

Intelligent Transport Systems(ITS) has been currently growing attention in industry as hightech traffic system and ITS infrastructure has been built not only on expressway but also on national highways. Although the effect of ITS installation on national highways is not easy to measure with quantitative methodology, it is necessary to develop the quantitative method to verify the effect accurate analysis of ITS effect. In this study, the analysis of cost efficiency of ITS project carried out by Iksan Regional Constriction Management Administration(IRCMA) was conducted. Analysis period and discount rate were assumed as 10 years and 5.5%, respectively. Several measures of the effect including reduction of travel time, CO2 discharged and fuel and the value of Variable Message Sign(VMS) information were proposed. Concludingly, ITS project implemented by IRCMA appeared to be cost effective, indicating 1.20 of B/C ratio, 12.4% of IRR and W1.48 billion of NPV.

• Journal of Korean Society of Disaster and Security
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• v.15 no.4
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• pp.39-46
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• 2022

The rainfall characteristics such as heavy rains are changing differently from the past, and uncertainties are also greatly increasing due to climate change. In addition, urban development and population concentration are aggravating flood damage. Since the causes of urban inundation are generally complex, it is very important to establish an appropriate flood prevention plan. Thus, the government in Korea is establishing standards for disaster prevention performance for each local government. Since the concept of the disaster prevention performance target was first presented in 2010, the setting standards have changed several times, but the overall technology, methodology, and procedures have been maintained. Therefore, in this study, studies and technologies related to urban disaster prevention performance were reviewed using the scientometric analysis method to review them. This analysis is a method of identifying trends in the field and deriving new knowledge and information based on data such as papers and literature. In this study, papers related to the disaster prevention performance of the Web of Science for the last 30 years from 1990 to 2021 were collected. Citespace, scientometric software, was used to identify authors, research institutes, countries, and research trends, including citation analysis. As a result of the analysis, consideration factors such as the the concept of asset evaluation were identified when making decisions related to urban disaster prevention performance. In the future, it is expected that prevention performance standards and procedures can be upgraded if the keywords are specified and the review of each technology is conducted.

• KDI Journal of Economic Policy
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• v.16 no.1
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• pp.3-92
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• 1994

경제정책(經濟政策) 변화(變化)의 효과(效果)를 실증분석(實證分析)할 때, 거시경제(巨視經濟) 변동(變動)에 관심이 있는 경우 거시계량모형(巨視計量模型)을 활용하고, 상대가격구조(相對價格構造) 변동(變動)에 대한 소비자(消費者) 및 생산자(生産者)의 반응에 관심이 있는 경우 일반균형연산모형(一般均衡演算模型)을 사용한다. 그런데 대체로 정책변수(政策變數)는 경제구조(經濟構造)(미시적(微視的) 효과(效果))와 경기순환(景氣循環)(거시적(巨視的) 효과(效果))에 동시적 영향을 주기 때문에, 위의 두 모형(模型) 중 어느 하나만으로는 미시행태와 거시현상을 연계 분석하거 어렵다. 본고(本稿)에서는 정책변수(政策變數)의 변화(變化)가 경제주체(經濟主體)의 개별적 최적화(最適化) 행태(行態)와 집합적(集合的) 행태(行態)에 미치는 영향을 동시에 파악하기 위해 이 두 모형(模型)을 결합한 미시(微視)-거시통합모형(巨視統合模型)을 개발하였다. 통합모형(統合模型)의 결과에 의하면, 일반균형모형(一般均衡模型)에 편입(編入)된 거시계량모형(巨視計量模型)과 동태화(動態化)된 일반균형연산모형(一般均衡演算模型)을 결합하여 단기(短期) 경기순환(景氣循環) 및 중장기(中長期)에 걸친 구조조정(構造調整) 문제(問題)를 동시에 분석 가능한 실증분석(實證分析) 도구(道具)를 개발할 수 있었다. 설제로 본고(本稿)에서는 정책대안효과(政策代案效果)의 정량적(定量的) 평가(評價)를 위하여 통합모형(統合模型)을 가상적인 석탄가격(石炭價格) 자율화(自律化)와 보조금(補助金) 지원제도(支援制度) 변화(變化)의 효과분석에 활용하여 보았다. 이러한 모의실험(模擬實驗)은 다른 정책효과분석(政策效果分析)에도 활용(活用)될 수 있을 것이다.

• Journal of Korean Society of Transportation
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• v.28 no.1
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• pp.15-24
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• 2010

Until now, the location and the size of gate are designed by only experience and intuitive use judgement. However there are no studies that investigated how many people will be using each subway gate depending on the location of gates. Therefore, the purpose of this study is to develop a gate choice model of subway station. The most critical element of a gate choice in subway station is the location of pedestrian's destinations. In this study, the development of the regression model is constructed from data of land use characteristic of station vicinity and the number of bus route and the space structure of station vicinity(Depth concept by Space Syntax analysis and total road length of station vicinity) by using the real data of 30 subway station in Seoul. This study found that subway pedestrian flow are mainly determined by three factors; the total floor space of commercial buildings, Total Depth(space structure index of station vicinity), and the number of bus route. The verification of a proposed model is done by using the real gate pedestrian data of two subway station in Seoul; Gang-nam and Yang-jae. The additional study of how to define the gate impact area is analysed. Therefore, this study will provide the theoretical bases in decision of gate location and size when a new subway station is opened in future.

• Proceedings of the Korean Society for Information Management Conference
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• 2002.08a
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• pp.267-272
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• 2002

최근 국제학술지에 등재되는 한국 의학논문이 증가하는 이유가 SCI 또는 MEDLINE 학술지를 선호하는 연구업적 평가정책과 관련이 있는지에 대한 관심이 국내학계에 존재하고 있다. 본 연구에서는 1980년대에 이어 1990년대에도 SCI 학술지나 MEDLINE 학술지에 많은 논문을 발표한 의학분야 중의 하나인 방사선학분야를 중심으로, 한국 의학자들이 1990년대에 발표한 논문들의 증가추세, 국제학술지와 국내학술지 논문 분포현황을 분석하여, 우리나라 의학 학술논문의 국제화 동향과 그 특성을 고찰하였다.

• Korean Security Journal
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• no.10
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• pp.189-213
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• 2005

Risk management should be controlled systematically by effectively evaluating and suggesting countermeasures against the various risks which are followed by the change of the society and environment. These days, enterprise risk management became a new trend in the field. The first step in risk analysis is to recognize the risk factors, that is to verify the vulnerabilities of loss in the security facilities. The second step is to consider the probability of loss in assessing the risk factors. And the third step is to evaluate the criticality of loss. The security manager will determine the assessment grades and then the risk levels of each risk factor, on the basis of the result of risk analysis which includes the assessment of vulnerability, the provability of loss and the criticality. It is of great importance to put the result of risk analysis in mathematical statement for a scientific approach to risk management. Using the risk levels gained from the risk analysis, the security manager can develop a comprehensive and supplementary security plan. In planning the risk management measures to prepare against and minimize the loss, insurance is one of the best loss-prevention programs. However, insurance in and of itself is no longer able to meet the security challenges faced by major corporations. The security manager have to consider the cost-effectiveness, to suggest the productive risk management alternatives by using the security files which contains every information about the security matters. Also he/she have to reinforce the company regulations on security and safety, and to execute education repeatedly on security and risk management. Risk management makes the most efficient before-the-loss arrangement for and after-the-loss continuation of a business. So it is very much important to suggest a best cost-effective and realistic alternatives for optimizing risk management above all, and this function should by maintained and developed continuously and repeatedly.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.147-149
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• 2011

본 연구는 선박사고의 발생과 선박이 지닌 특성(선종/톤수/국적)간에 연관이 있을 것으로 가정하여 관제전문가를 대상으로 하는 설문조사 및 사고통계 분석을 통해 각 특성 별 가중치를 계량화하여 기준점수표를 마련하고자 하였다. 가중치 산정은 분석적 계층화 과정(AHP: Anlaytic Hierachy Process)를 거쳤으며 이를 통해 얻은 기준점수표를 바탕으로 인천항의 1일간 입항선에 적용하여 결과를 준사고이력 보유선박군의 점수와 비교하여 양 집단 간 높은 위험지수 해당선박 존재 비율을 비교하였다.

• International Area Studies Review
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• v.14 no.3
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• pp.157-177
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• 2010

This study analyzes the effect of fiscal decentralization on economic growth by using each province city's panel data of China from 1985 to 2008. By using Recently developed fiscal decentralization index and autonomy of local government quantified this study finds the following conclusions. The increase of inflation rate affects positive effect on Chinese economy. This is the trade-off relationship with the growth of Chinese economy by the Phillips Curve theory. So this suggests the instability of Chinese economy. The affiliation of WTO of China shows positive effect on Chinese economy. This can be translated as the real evidence about free trade theory of Classical School. Expenditure decentralization in China led to economic growth and revenue decentralization also affected positively although it was not as much as expenditure decentralization's effect. Central tax and local tax negatively influenced economic growth; and differently from our expectation, local government autonomy quantified was not relevant to economic growth.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.405-405
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• 2023

최근 기후변화로 인한 극심한 홍수와 가뭄, 폭염 등 이상 기온 및 기후에 따른 피해가 급격히 증가하는 추세이다. 특히, 집중호우로 인해 도심지에서 발생한 홍수피해는 재산피해뿐만 아닌 수 많은 인명피해가 발생하고 있다. 국내에서는 수재해로부터 인명과 재산을 보호하기 위해 용수공급과 체계적인 치수 사업이 행한 바 있다. 이러한 치수 사업에서 경제성 분석은 사업 전·후 의 편익추정이 완벽히 검증되기 쉽지 않으며, 기존의 치수 계획은 유역 전반에 걸쳐 다양한 홍수 방어시설의 종합적인 고려 없이 제방 중심으로만 수립되어 홍수 발생 시 하천에 과도한 부담을 줄 뿐만 아니라, 사업의 경제성이 낮게 평가되고 있다. 이렇게 국내에서 행해진 하천설계기준에서 제안되었던 경제성 분석 방법은 여러 가지 문제점들을 내포하고 있으며 지속적인 홍수피해가 발생하였다. 이와 같은 문제점들을 개선하고자 개발된 K-FRM(Forean-Flood-Risk Model)은 능동형 하천정보 운영을 통한 다차원 하천관리체계 구축 및 활용을 위한 정량적 위험도 평가 툴로 위험지역에 노출된 자산의 정보(인벤토리), 평가기준, 손상함수, 계량화 원단위 등 홍수피해를 추정하는데 활용이 가능하며, 손실 또는 피해액으로 표현되는 재해손실은 경제적인 관점에서의 위험이며 금전적인 형태로 표현된다. 본 연구에서는 홍수피해액 정량화 모델인 K-FRM을 활용하여 굴포천 유역과 영강 유역을 대상으로 항목별 피해액 산정 후, 정량적 피해액 산정 방법인 EAD(Expected Annual Damage) 분석을 통해 홍수피해위험지도를 작성하여 표준유역별, 행정구역별 홍수피해액을 산정하는 것을 목적으로 한다.