• 한국안전학회지
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• 제14권2호
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• pp.62-69
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• 1999

The quantitative risk assessment and consequence analysis by accident scenario in the process of EPS(Expendable Poly Stylene) reaction process are conducted. And the decision making process is studied followed by selecting various alternatives to safety management and facility improvement. The result are as follows; 1) The object of decision making through comprehensive risk assessment are the scenario which can cause four major accident, which are made by process analysis, work analysis and hazard identification. 2) Frequency analysis of ETA, FTA, HRA and consequence analysis of accident to each have been conducted. The each frequency values are yielded $9.2{\times}10_{-5}/yr$ to scenarios $1, 8.2{\times}10^{-4}/yr$ to scenario 2, $4.5{\times}10^{-6}/yr$ scenario 3 and $1.8{\times}10^{-7}/yr$ to scenario 4. The each scenarios have been conducted consequence analysis. 3) The calculated values have been obtained 4.00 to scenario 1, 3.25 to scenario 2, 2.43 to scenario 3 and 1.34 to scenario 4, as the weight value had been applied to the quantitative and normalized criteria of all components. As a risk criteria, scenario 1 have been selected, which is the most dangerous scenario as a result of ranking the scenario. 4) According to the importance of FTA and contribute to scenario 1, the cost-benefit values are yielded $8.05\times10^5[￦/yr]$ to final alternative(Al), $1.55{\times}10^5[￦/yr]$ to final alternative(A2) and $2.32{\times}10^5[￦/yr]$ to final alternative(A3). As a result of final alternative(Al) has been selected, which is the most optimized alternative.

• 한국기후변화학회지
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• 제7권3호
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• pp.341-349
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• 2016

This study is intended to set a greenhouse gas emission scenario based on green remodeling pilot project (Annex building of Seoul Customs Office) using LEAP model, a long-term energy plan analysis model, to calculate the energy saving and greenhouse gas emission till year 2035 as well as to analyze the effect of electric power saving cost. Total 4 scenarios were made, Baseline scenario, assuming the past trend is to be maintained in the future, green remodeling scenario, reflecting actual green remodeling project of Seoul Customs Office, behavior improvement and renewable energy supply, and Total scenario. According to the analysis result, the energy demand in 2035 of Baseline scenario was 6.1% decreased from base year 2013, that of green remodeling scenario was 17.5%, that of behavior improvement and renewable energy supply scenario was 21.1% and that of total scenario was 27.3%. The greenhouse emission of base year 2013 was $878.2tCO_2eq$, and it was expected $826.3tCO_2eq$, approx. 5.9% reduced, in 2035 by Baseline scenario. the cumulative greenhouse gas emission saving of the analyzing period were $-26.5tCO_2eq$ by green remodeling scenario, $2.8k\;tCO_2eq$ by behavior improvement and renewable energy supply scenario, and $2.0k\;tCO_2eq$ by total scenario. In addition the effect of electricity saving cost through energy saving has been estimated, and it was approx. 634 million won by green remodeling scenario and appro. 726 million won by behavior improvement and renewable energy supply scenario. So it is analyzed that of behavior improvement and renewable energy supply scenario would be approx. 12.7% higher than that of green remodeling scenario.

• 한국도로학회논문집
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• 제14권5호
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• pp.165-177
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• 2012

PURPOSES: The number of traffic accidents in 2010 was 226,978 in Korea, a high percentage of which up to 12.61% was due to drunk driving. As it is expected that the number of traffic accidents will increase because of the drastic increase of the number of vehicle registrations and the prevalent drinking cultures, it is necessary to understand the driving characteristics of drunken drivers to lower the increasing rate. METHODS: This study, therefore, comparatively analyzes the two groups - one group before drinking and the other after drinking - based on the graph, and implements the correlation in each scenario(1,2,3). scenario 1. appearance of jaywalkers; scenario 2. appearance of an illegal left-turning car; and scenario 3. appearance of a vehicle and a person as obstacles to the driver after an accident. RESULTS: The comparative analysis of speed shows that the group after drinking was 50km/h faster than the group before drinking in Scenario 1, 20km/h in Scenario 2, and 15km/h in Scenario 3 respectively. In the comparative analysis of acceleration, the average level of the group after drinking was 0.15 higher than that of the group before drinking in Scenario 1, 0.30 in Scenario 2, and 0.15 in Scenario 3. In the comparative analysis of deceleration, the average level of the group after drinking was about 0.4 lower than that of the group before drinking in Scenario 1, 0.35 in Scenario 2, and 0.2 in Scenario 3 respectively. In the comparative analyses, the item of speed, acceleration and deceleration was of significance for each group in Scenarios. CONCLUSIONS: The comparative analysis demonstrated that there is a difference between the group before drinking and the group after drinking. In the analysis of correlation in each group, it was proved that the drunken group was of significance.

• 대한임베디드공학회논문지
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• 제19권2호
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• pp.115-121
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• 2024

Each ADS must have a validation and evaluation scenario for ODD. This requires a large number of scenarios, so a scenario library must be developed. In order to effectively utilize the scenario library, a system that supports testing in the ODD of the user's choice is required. In other words, in order to develop a scenario library, it is necessary to build a database on actual driving road conditions (geometry, etc.). Accordingly, in this study, we establish a domestic driving environment database based on HD-Map for driving safety testing, design a system that can search test target sections in connection with the ODD of the scenario, and present the implementation results. In the future, it is expected that the domestic driving environment database will be able to create scenarios through linking with the scenario library and directly utilize them for scenario-based evaluation of various demand sources.

• 한국CDE학회논문집
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• 제18권2호
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• pp.104-112
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• 2013

Computer-based modeling and simulation (M&S) techniques have become an essential component in the development of new weapons systems. M&S techniques provide a means to simulate military training, strategies, military doctrines, and weapons acquisition processes. This paper proposes a small scale engagement scenario generation method. This work also includes a process for scenario generation and visualization. The proposed scenario generation methodology employs the Timed-FSA (finite state automata) and DFS (depth first search) algorithms. The proposed scenario generation method is verified using a one-on-one combat engagement scenario between two submarines. In addition, we suggest a scenario generation process including whole scenario generation and scenario visualization.

• 한국게임학회 논문지
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• 제18권2호
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• pp.59-68
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• 2018

비주얼 노블은 여러 멀티미디어적 요소를 결합한 연출과 게임성이 돋보이는 수행성을 살리고 하이퍼텍스트 구조를 살린 서사를 도입하면서 플레이어인 독자에게 텍스트 읽기의 즐거움을 다양한 방면으로 전하는 데에 그 목적이 있다. 본 분석은 게임성과 서사성을 함께 추구하려고 한 비주얼 노블 컨텐츠가 멀티 시나리오를 구축하는데 있어 어떤 경향으로 제작해 왔는지 수행성이 서사에 담긴 시나리오와, 캐릭터별로 멀티 시타리오를 구축한 두 가지 유형으로 나누어 분석한다. 비주얼 노블은 서사와 게임성을 추구하는 컨텐츠로, 입체적 서사구성에 방점을 두고 있으며 이러한 멀티 시나리오의 구조를 알아가는 것은 앞으로의 컨텐츠 창작에 있어 실제적인 도움이 될 것이라 기대한다.

• 게임&엔터테인먼트 논문지
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• 제2권1호
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• pp.56-63
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• 2006

본 논문에서는 시나리오의 확장 양상에 대한 기초 연구로서 시나리오에 내재된 구술성과 문자성을 먼저 다루고 있다. 그리고 문자 문명으로 규정되어진 구텐베르크 은하계의 여러 사항을 검토하면서 시나리오의 특이성과 잠재력을 파악하였다. 이에 덧붙여 선행하는 연구 관점을 기초로 해서 시나리오의 여러 특성들을 시각문화 속의 영상적 글쓰기와 인터넷 기반의 디지털 스토리텔링과 연계시키고, 디지털 영상 콘텐츠 시대에 있어서 시나리오의 중요성과 위상을 세우기 위한 새로운 시나리오 형식과 창작 환경을 위한 다양한 지원 방안들을 제시하였다. 본 논문의 목적은 국가적 차원에 있어서 전문대학원 체제나 스토리와 시나리오 전문 진흥기관 등과 같은 시나리오 개발 체제를 위한 지원 방안들과 시나리오 은하계를 특별히 강조하였다.

• 에너지공학
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• 제29권2호
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• pp.10-22
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• 2020

미세먼지 문제 해결에 대한 국민적 요구가 높아짐에 따라 정부에서는 강도 높은 미세먼지 관련 대책을 발표하고 있다. 그래서 최근에 미세먼지의 전구체 중에서 질소산화물을 제거하기 위한 배연탈질기술로서 선택적 촉매환원법(SCR)이 주목받고 있다. 본 연구에서는 미세먼지 관련 정부정책과 시장 및 기술개발 현황을 조사하고, SCR 기술이 산업체에 적용되는 경우를 Case별로 구분하여 시나리오별 경제성 분석을 실시하였다. 시나리오별 경제성 분석의 결과는 NPV로 산출하였으며, 탈질설비가 구축되어 있지 않은 기업(Case 1)이 일반 SCR 기술을 신규로 도입하는 경우(Scenario 1-1)와 저온 SCR 기술을 신규로 도입하는 경우(Scenario 1-2)를 분석하였다. 그리고 탈질설비가 이미 구축되어 있는 기업(Case 2)이 일반 SCR 기술을 그대로 사용하는 경우(Scenario 2-1)와 저온 SCR 기술로 대체하는 경우(Scenario 2-2)로 구분하여 분석하였으며, 모든 시나리오별 NPV 결과를 바탕으로 비교 분석을 실시하였다.

• 중환자간호학회지
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• 제3권2호
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• pp.61-76
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• 2010

Purpose: This study was aimed to construct an algorithm of dyspnea emergency care and develop a simulation scenario for emergency care of dyspnea based on the algorithm. Methods: The first stage of this methodological study was to construct a preliminary algorithm based on a literature review, and content and clinical validity were established. Reflecting the result of content and clinical validity for this preliminary algorithm, simulation scenario was developed based on the modified Bay Area Simulation Collaborative scenario template. The content validity of this scenario was established, and clinical applicability was tested by applying this scenario to nurses. Results: The final simulation scenario of emergency care of dyspnea consisted of scenario overview, curricular integrity, and scenario script. The scenario was proceeded on 7 phases of the algorithm as follows; initial assessment, immediate emergency care, reassessment of dyspnea, monitoring respiratory failure, checking pulse if respiratory failure occurs, decision making on cardiopulmonary resuscitation or intubation, determining a differential diagnosis according to origin of dyspnea. Conclusion: The simulation scenario of emergency care of dyspnea developed in this study may provide a strategy of simulation education for emergency care of dyspnea for nurses.

• Nuclear Engineering and Technology
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• 제35권2호
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• pp.108-120
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• 2003

In assessing the long term post closure radiological safety assessment of a potential HLW repository in Korea, three categories of uncertainties exist. The first one is the scenario uncertainty where series of different natural events are translated into written statements. The second one is the modeling uncertatinty where different mathematical models are applied for an identical scenario. The last one is the data uncertainty which can be expressed in terms of probabilistic density functions. In this analysis, three different scenarios are seleceted; a small well scenario, a radiolysis scenario, and a naturally discharged scenario. The MASCOT-K and the AMBER, probabilistic safety assessment codes based on connection of sub-modules and a compartment theory respectively, are applied to assess annual individual doses for a generic biosphere. Results illustrate that for a given scenario, predictions from two different codes fairly match well each other But the discrepancies for the different scenarios are significant. However, total doses are still well below the guideline of 2 mRem/yr. Detailed analyses with model and data uncertainties are underway to further assure the safety of a Korean reference dispsoal concept.