• 한국압력기기공학회 논문집
• /
• 제5권2호
• /
• pp.40-44
• /
• 2009

In this study, Event Corrective Action Supporting System (ECAS) is developed for the accident evaluation in nuclear power plant. The ECAS system can be used in supporting regulator and/or operator under event situation in nuclear power plants. The ECAS system consists of 5 modules including failure location module, failure analysis module, failure integrity evaluation module, system vulnerability evaluation module, and reporting and operating experience feedback module. The ECAS system will be used as sub module of Knowledge-Based Event Evaluation Network (K-EvENT) which is developing for the against the accident in nuclear power plants.

• 한국콘텐츠학회논문지
• /
• 제6권5호
• /
• pp.161-169
• /
• 2006

본 논문은 스포츠 이벤트(2005 제천 산악마라톤 대회) 개최로 인한 사회문화적 영향요인분석을 실증분석 하였다. 연구결과는 다음과 같다. 요인분석결과 긍정적 영향에 대한 19개의 질문 항목이 5개의 요인으로 나타났고, 부정적 영향에 대한 9개의 질문 항목이 2개의 요인으로 나타났다. 구체적으로 $20\sim30$대의 젊은 연령층과 서비스산업종사자들은 긍정적 영향을 많이 받은 것으로 나타났다. 이는 스포츠 이벤트의 긍정적 영향 요인이 나이와 직업에서 의미 있는 차이가 있음을 보여준다. 그러므로 스포츠 이벤트에 대한 사회 문화적 특징은 지역사회 구성원에게 서로 다른 영향을 미치고 있다.

• 한국임상약학회지
• /
• 제34권1호
• /
• pp.71-78
• /
• 2024

Background: Oral cancer drugs, particularly tyrosine kinase inhibitors (TKIs), are increasingly popular due to their convenience. However, they pose challenges like drug interactions, especially with medications like azole antifungals. While the FDA provides some guidance, more detailed information is needed to manage these interactions effectively. A meta-analysis was conducted to understand the impact of interactions between TKIs and azole antifungals on adverse events during clinical studies. Methods: A meta-analysis followed PRISMA guidelines. Data from PubMed, EMBASE, and references were searched until November 30, 2021. Inclusion criteria encompassed studies on TKI-antifungal interactions in English. Study selection and quality assessment were conducted by two independent investigators. Results: Out of 158 articles, 11 were selected for analysis. Combination therapy showed a slight increase in adverse events but was not statistically significant (OR 1.02, 95% CI 0.49-2.13, p=0.95). AUC and Cmax fold changes did not significantly impact adverse event development. Both itraconazole and ketoconazole showed no significant difference in adverse event development compared to TKI alone. Conclusions: Study finds TKI-DDI not significantly linked to AE increase; azole antifungal types not related to AE. Future DDI research crucial for drug development.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2008년도 춘계학술대회 논문집
• /
• pp.1499-1504
• /
• 2008

This study shows risk-based evaluation results of casualty accidents for passengers, railway staffs and MOP(Member of public) on the national railway in South Korea. To evaluate risk of these accidents, the hazardous events and the hazardous factors were identified by the review of the accident history and engineering interpretation of the accident behavior. A probability evaluation model for each hazardous event which was based on the accident appearance scenario was developed by using the Fault Tree Analysis (FTA) technique. The probability for each hazardous event was evaluated from the historical data and structured expert judgment. In addition, the severity assessment model utilized by the Event Tree Analysis (ETA) technique was composed of the accident progress scenarios. And the severity for the hazardous events was estimated using fatalities and weighted injuries. The risk assessment model developed can be effectively utilized in defining the risk reduction measures in connection with the option analysis.

• 한국응급구조학회지
• /
• 제23권1호
• /
• pp.135-146
• /
• 2019

Purpose: The aims of this study were to identify the relationships among alcohol level, impact of event, occupational stress, and distress disclosure and to determine the influences on alcohol level among fire officials. Methods: Participants in this cross-sectional, descriptive study were 241 fire officials. Data were collected from June 2018 to July 2018 using self-reported questionnaires and were analyzed using IBM SPSS 22.0 software (IBM, Armonk, NY, USA). Results: The results revealed significant positive relationships between alcohol level and impact of event, and impact of event and occupational stress, and a negative relationships between occupational stress and distress disclosure. Regression analysis revealed that alcohol level accounted for 9.2% of the variance by gender, and impact of event(e.g., sleep problems and emotional numbness). Conclusion: These findings provide information that can be used in the development of mental health promotion programs for fire officials.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2001년도 춘계학술대회 논문집
• /
• pp.44-51
• /
• 2001

To account for uncertainties involved in an economic analysis of project, sensitivity analysis are usually being done in Korea. Though useful for policy analysis, but it larks explicit consideration of probability of occurring certain events considered in the sensitivity analysis. Risk analysis otherwise can explicitly account for the probability of certain event which has dire impact on project viability, such as cost, discount rate, and size of benefit. This paper reports experience of applying risk analysis method for economic evaluation of railroad investment. Probability distribution of event has paramount impact on the risk analysis results, while not many prior researches dealt with these issues. Probability distribution of rolling stock cost and operating cost, in addition to those cost variables, are developed considering railway demand in this study. Case study results are reported. Issues in applying risk analysis are reported in addition to further research direction.

• 대한안전경영과학회지
• /
• 제20권2호
• /
• pp.65-76
• /
• 2018

Recently, most of the information system use environment is changing to GUI environment based on windows and web. Most of the development tools for building such a GUI-based information system support object-oriented and event-driven programming concepts. However, there is still a lack of a development methodology that systematically supports event-based information system construction. From a business perspective, an information system is one that supports business processes efficiently and effectively to improve business performance. These business processes are composed of business activities which involve a series of business events. A business event is executed according to a business scenario. Therefore, it is necessary to grasp these events in the requirements analysis stage and to apply it on the system development methodology. However, information systems development methodology which systematically reflect the event processing concept still is insufficient. From this viewpoint, this paper proposes an event-driven scenario-based development methodology that can meet the recent development environment of information systems, and applies the proposed methodology to a small scale information system development case.

• Nuclear Engineering and Technology
• /
• 제34권4호
• /
• pp.358-369
• /
• 2002

Abundant information about analyses of single steam generator tube rupture (SGTR) events is available because of its importance in terms of safety. However, there are few literatures available on analyses of multiple steam generator tube rupture (MSGTR) events. In addition, knowledge of transients and consequences following a MSGTR event are very limited as there has been no occurrence of MSGTR event in the commercial operation of nuclear reactors. In this study, a postulated MSGTR event in an APR1400 is analyzed using thermal-hydraulic system code MARSI.4. The present study aims to examine the effects of affected steam generator selection. The main steam safety valve (MSSV) lift time for four cases are compared in order to examine how long operator response time is allowed depending on which steam generate. (S/G) is affected. The comparison shows that the cases where two steam generators are simultaneously affected allow longer time for operator action compared with the cases where a single steam generator is affected. Furthermore, the tube ruptures in the steam generator where a pressurizer is connected leads to the shortest operator response time.

• 한국콘텐츠학회논문지
• /
• 제18권6호
• /
• pp.204-216
• /
• 2018

본 연구는 뷔페레스토랑 선택 결정요인들을 탐색한 후, 최근 실무적으로 중요성이 더해지고 있는 행사요인을 발굴하고 이에 대한 척도를 개발하였다. 개발된 행사요인 척도를 기존의 뷔페레스토랑 척도요인들과 더불어 독립변수를 구성하고 고객만족을 매개변수로 하였으며 행동의도를 종속변수로 모형을 설정하여 개발된 척도를 검증하였다. 검증결과, 행사요인이 고객만족과 행동의도에 정(+)의 영향을 미치고 있으며 여러 결과들 중 새롭게 도출된 행사요인이 뷔페레스토랑 선택 결정의 주요요인으로 작용한다는 점을 실증적으로 확인하였다. 본 연구는 척도를 개발하기 위한 분석의 틀로써 기호학적 내용 분석방법을 활용하여 행사요인을 도출하고 측정문항을 개발하였다. 척도 개발 후, 행사요인 개념에 대한 이해도 조사를 실시하였고, 뷔페 레스토랑 이용자들에게 설문지를 배포하여 회수된 285부를 분석한 후, 결과를 도출하여 척도를 실증적으로 검증하였다. 본 연구를 통해 뷔페레스토랑의 지속가능성을 담보하는 객관적이고 효율적 척도개발을 통해 외식업의 트렌드 변화반영 및 고객취향 맞춤형 전략실행에 적용 가능한 척도개발로 실무적 함의를 제공하였다.

• 한국CDE학회논문집
• /
• 제17권2호
• /
• pp.97-110
• /
• 2012

High performance sensors and modern data logging technology with real-time telemetry facilitate system fault diagnosis in a very precise manner. Fault detection, isolation and identification in fault diagnosis systems are typical steps to analyze the root cause of failures. This systematic failure analysis provides not only useful clues to rectify the abnormal behaviors of a system, but also key information to redesign the current system for retrofit. The main barriers to effective failure analysis are: (i) the gathered data (event) logs are too large in general, and further (ii) they usually contain noise and redundant data that make precise analysis difficult. This paper therefore applies suitable pre-processing techniques to data reduction and feature extraction, and then converts the reduced data log into a new format of event sequence information. Finally the event sequence information is decoded to investigate the correlation between specific event patterns and various system faults. The efficiency of the developed pre-filtering procedure is examined with a terminal box data log of a marine diesel engine.