• 한국신재생에너지학회:학술대회논문집
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• 2008.05a
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• pp.617-620
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• 2008

지열에너지는 지구 내부의 깊은 곳에서부터 발생하는 열과 상부 지각에서 방사성 동위원소의 붕괴에 의한 열에 의해 발생한다. 지열에너지는 다른 신재생에너지(수력, 풍력, 태양력, 조력, 바이오 매스등)에 비하여 가동효율이 높고, 지속가능한 재활용 자원으로 경제적 효율성이 높아 전 세계적으로 활용도와 잠재성이 높은 신재생에너지의 하나로 각광 받고 있다. 따라서, 지열에너지의 사용은 화석 연료 사용의 상당부분을 대체할 수 있고, 온실가스의 배출도 줄일 수 있다. 현재 우리나라의 지열에너지 이용은 저온성 지열에너지를 이용한 냉난방에 국한되어 있지만, 앞으로의 지열에너지 이용은 Enhanced Geothermal System(EGS) 을 이용한 지열에너지 개발에 초점이 맞추어질 것이다. 현재의 지열에너지 개발을 용이하게 하고, 또한 미래의 지열에너지 개발에 대비하여 우리나라의 이용가능한 지열에너지 부존량을 파악하기 위해 본 연구를 수행하였다. 연구 수행에는1560개 열물성 자료(밀도, 비열, 열전도도), 353개 지표 지열류량 자료, 180개 열생산율 자료와 54개의 지표온도 자료가 사용되었다. 우리나라의 지표에서부터 1 km 깊이 간격별로 5 km 깊이까지 지열에너지 부존량을 산출한 결과 지표에서 부터 5 km 깊이까지의 추출 가능한 지열에너지의 총 부존량은 $1.01{\times}10^{23}$ J로 산출되었다. 지열에너지 부존량을 Toe(석유환산톤) 로 환산하면 $2.40{\times}10^{12}$ Toe 가 된다. 추출한 지열에너지 자원의 2%를 사용한다고 가정 했을때 약 480억 Toe 이다. 이는 2006년 우리나라 전체 1차 에너지 총 소비량(2.33억 Toe)을 고려 했을때 약 200년 동안 사용할 수 있는 양이다.

• Environmental and Resource Economics Review
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• v.13 no.1
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• pp.33-47
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• 2004

Even though the price of extracted but unprocessed coal has been available in Korea, the use of it as scarcity index would be inappropriate because of price subsidy. Following Halvorsen and Smith(1984), Kim and Lee(2002) derived estimates of the shadow price of unextracted coal by estimating the restricted cost function and differentiating with respect to the quantity of coal extracted. In Korea, however, due to the limited data the capital prices have been computed inconsistently case by case without relying on the robust formula like the Christensen-Jorgenson methodology used in US, which could result in biased estimators of the restricted cost function. In the paper the shadow prices of the resources in situ are obtained by measuring an input distance function defined by Shephard (1970), which requires only the data on the quantities of inputs and output. Empirical results for the Korean coal mining industry show that these shadow prices as a coal scarcity have increased fast by approximately three times in comparisons with those obtained by Kim and Lee.

• Journal of Internet Computing and Services
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• v.21 no.1
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• pp.201-210
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• 2020

This paper proposes a framework for the battle damage assessment (BDA) of electronic warfare linked to cyber warfare. Thanks to the rapid development of information and communication technology, the importance of cyber warfare and electronic warfare in cyberspace is increasing. Therefore, the BDA for cyber warfare and its associated electronic warfare in cyberspace is an important factor that affects the success or failure of military operations. In this paper, we propose a method to calculate measure of performance and measure of effectiveness by classifying the electronic warfare system into large / medium / small classes according to the type of electronic warfare. By setting up a hypothetical scenario, we show the effectiveness of the proposed framework.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.20 no.2
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• pp.183-196
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• 2009

The purpose of this study is to develop school library evaluation criteria by individual provincial office of education. Data was collected from several school library evaluation criteria. Based upon the data new evaluation criteria were developed in order to increase student academic achievement and apply various school environment. Evaluation items were divided into three items: library programs, school support, service. Evaluation methods were identified into survey method, statistics method, and applied standard statistics method. From three methods, applied standard statistics method was selected. This method included quantitative items and qualitative items. Quantitative items have two criteria from budget, three criteria from collection, and three criteria from use. Qualitative items have two criteria: collection and book usage.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.05a
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• pp.103-113
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• 2017

SCI(E)논문은 국가연구개발사업으로부터 도출되는 대표적 1차 산출 성과이며, R&D활동의 흐름을 파악할 수 있는 가장 중요한 지표 중 하나이다. 우리나라는 1980년대 50위권에 머물렀던 SCI(E)논문수가 1990년대를 거치면서 비약적으로 확대되었고, 최근 양적 규모 면에서는 세계 12위 수준을 유지할 만큼 괄목한 만한 성장을 이루었다. 최근 이러한 양적 확대 속에서, 논문의 질적 수준이 정체되고 있다는 문제점이 종종 거론되고 있다. 따라서 우리나라의 SCI(E)논문 성과가 가지는 질적 수준을 평가하기 위해 다양한 노력이 있어 왔다. 대표적인 SCI(E)논문의 질적 지표로 논문 피인용횟수와 저널 영향력지수가 있다. 그러나 이러한 지표는 학문 분야간 인용 특성을 반영하지 못하므로, 국내 연구자 사이에서도 다양한 순위보정영향력지수를 개발하고자 하는 시도가 있어 왔다. 본 논문에서는 그간 개발된 순위보정영향력지수를 추가적으로 보완하여, 보다 의미 있는 지표를 도출하고자 하였으며, 해당 지표를 국가연구개발사업 SCI(E)논문 성과에 적용하여 우리나라 SCI(E)논문 성과의 질적 수준을 검토하였다.

• Electronics and Telecommunications Trends
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• v.14 no.4 s.58
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• pp.81-92
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• 1999

정보화의 진전은 어느 한 개인이나 한 기업에 국한되는 것이 아니라 한 국가의 국가경쟁력을 결정하는 핵심요소로 등장하였다. 급변하는 정보사회를 대비한 산업 및 정보화 정책을 수립하기 위해서는 정보화 정도를 총체적으로 분석하는 것이 요구되는데, 이를 위한 선행조건은 객관적인 분석방법의 개발 및 측정이다. 따라서 본 연구는 변화된 정보화를 반영한 국가정보화지표체계의 설정은 물론 새로운 정보화 측정방법을 개발하여 국가별 정보화 수준을 측정 및 분석하는 데 그 목적이 있다. 본 연구에서 설정한 정보화지표들은 각 나라의 정보화 수준을 합리적으로 반영하도록 설정되었으며, 특히 고도정보이용지표와 정보기반구조지표를 도입함으로써 현재의 정보화 수준을 보다 잘 설명하도록 노력하였고, 또한 새롭게 정보화지수 산출 방법을 적용해보았다. 결론적으로 우리나라의 경우 정보기반구조지표 및 고도이용지표에서 경쟁국 및 선진국과의 격차가 크므로 이러한 항목의 투자를 확대시킴으로써 정보화의 균형발전을 도모할 수 있을 것으로 분석되었다.

• Journal of Food Hygiene and Safety
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• v.30 no.3
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• pp.217-226
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• 2015

This study was conducted to establish a standardized process for developing food safety health indicators. With this aim, we proposed a standardized process, accessed the validity of the suggested process by performing simulations, and provided a method to utilize the indicators. Developing process for domestic environmental health indicators was benchmarked to propose a standardized process for developing food safety health indicators, and DPSEEA framework was applied to the development of indicators. The suggested standardized process consists of an exploitation stage and a management stage. In the exploitation stage, a total of 6 procedures (initial indicators suggestion, candidate indicators selection, data availability assessment, feasibility assessment, pilot study, and final indicator selection) are conducted, and the indicators are routinely calculated and officially announced in the management stage. The exploitation stage is operated by an interaction between a task force team who manages the overall process, and an advisory committee (minimum of 4 in academia, 2 in research, 4 in specialists of Ministry of Food and Drug Safety) who reviews and performs evaluations on the indicators. The standardized process was simulated with 45 initial indicators, and total of 4 indicators (17 detailed indicators) were selected: 'Proportion of domestic fruit/vegetable receiving 'acceptable' in the evaluation of pesticide/herbicide residues', 'Food-borne disease outbreaks', 'Food-borne legal infectious disease incidence', 'Salmonellosis incidence'. Synthetic food safety health index was derived by calculating percent difference with the data from 2010 to 2012. Results showed that when comparing the year 2010 to 2011, and 2011 to 2012, the overall food safety status improved by 10.37% and 9.87%, respectively. In addition, the contribution of indicators to the overall food safety status can be determined by looking into the individual indicators, and the synthetic index may be illustrated to enhance the ease of interpretation to the public and policy makers. In overall, food health safety indicators can be useful in many ways and therefore, attention should be drawn to conduct further studies and establish related legislations.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.355-364
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• 2020

The performance plan of the budget was introduced to link the budget with the performance and to implement performance-oriented policies. This study reviewed the adequacy of indicators of the 2020 agricultural sector budget performance plan to find out how performance indicators were planned and achieved. As a result, there were problems such as low linkage between policy projects and targets, weighting of performance indicators and unclear grounds for targets, and underwhelming performance indicators. To improve these problems, challenging performance indicators and the establishment of practical performance indicators through incentives is necessary.

• Food Science of Animal Resources
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• v.32 no.3
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• pp.354-363
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• 2012

The study was conducted to determine bio-markers and establish shelf-life for eggs and egg products. The selected biomarkers were measured storage period according to samples (two months for table eggs and two weeks for whole liquid eggs) and five storage temperatures ($10^{\circ}C$, $15^{\circ}C$, $25^{\circ}C$, $35^{\circ}C$ and $45^{\circ}C$). The bio-markers for table eggs determined pH, acid value, VBN (volatile basic nitrogen), HU (Haugh unit), aerobic plate counts, coliform group, and Salmonella sp. The bio-markers for whole liquid eggs excluded HU in the bio-markers of eggs. The shelf-life of table eggs observed as 42 d at $10^{\circ}C$, 27 d at $15^{\circ}C$, 9 d at $25^{\circ}C$, 2 d at $35^{\circ}C$, and 1 d at $45^{\circ}C$ in sensory overall acceptability. The shelf-life of pasteurized whole liquid eggs observed as 7 d at $10^{\circ}C$, 3 d at $15^{\circ}C$, 2 d at $25^{\circ}C$, 1 d at $35^{\circ}C$, and less than one d at $45^{\circ}C$ in total plate count. The shelf-life of non- pasteurized whole liquid eggs observed as 4 d at $10^{\circ}C$, 2 d at $15^{\circ}C$, 1 d at $25^{\circ}C$, and less than 1 d at $35^{\circ}C$ and $45^{\circ}C$ in total plate count.

• Journal of Environmental Policy
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• v.13 no.1
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• pp.69-93
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• 2014

The aim of this research was to develop a climate change vulnerability index at the district level (Si, Gun, Gu) with respect to the health care sector in Korea. The climate change vulnerability index was esimated based on the four major causes of climate-related illnesses : vector, flood, heat waves, and air pollution/allergies. The vulnerability assessment framework consists of six layers, all of which are based on the IPCC vulnerability concepts (exposure, sensitivity, and adaptive capacity) and the pathway of direct and indirect impacts of climate change modulators on health. We collected proxy variables based on the conceptual framework of climate change vulnerability. Data were standardized using the min-max normalization method. We applied the analytic hierarchy process (AHP) weight and aggregated the variables using the non-compensatory multi-criteria approach. To verify the index, sensitivity analysis was conducted by using another aggregation method (geometric transformation method, which was applied to the index of multiple deprivation in the UK) and weight, calculated by the Budget Allocation method. The results showed that it would be possible to identify the vulnerable areas by applying the developed climate change vulnerability assessment index. The climate change vulnerability index could then be used as a valuable tool in setting climate change adaptation policies in the health care sector.