• Journal of the Korean Applied Science and Technology
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• v.36 no.3
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• pp.930-941
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• 2019

The purpose of this study was to investigate the effect of health assessment practical education through scenario on communicative competence, critical thinking diposition and academic achievement among nursing students' in university. A nonequivalent control group pretest-posttest design was used to measure. A survey was held to the students who are taking a health assessment practical class for 2grade in J university in Chungbuk and P university in G-do. Participants in a health assessment practical through scenario class and traditional health assessment class were 35 experiment group students and 34 control group students who attended 16 weeks. Effects were evaluated through pre and post tests that included measurements. As a result, the experimental group is more capable of communicative competence (t=2,797, p=.007), critical thinking disposition(t=2,406, p=.019), ability to collecting information(t=2,977, p=.004), problem awareness competence(t=3.584, p=.001) has increased statistically significantly than the control group. Therefore, Therefore, this study could be used that health assessment practical education through scenarios to improve nursing students' communicative competence, critical thinking disposition, collecting information competence, and problem awareness competence.

• The Safety technology
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• no.72
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• pp.14-19
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• 2003

• Journal of Navigation and Port Research
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• v.40 no.6
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• pp.391-400
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• 2016

A number of maritime accidents, and accident response activities, including the command and control procedures that were implemented at accident scenes, are analyzed to derive useful information about responding to maritime accidents, and to understand how the chain of events developed after the initial accident. In this research, a new concept of a 'risk based accident response support system' is proposed. In order to identify the event chains and associated hazards related to the accident response activities, this study proposes a 'Brainstorming technique for scenario identification', based on the concept of the HAZID technique. A modified version of Event Tree Analysis was used for quantitative risk analysis of maritime accident response activities. PERT/CPM was used to analyze accident response activities and for calculating overall (expected) response activity completion time. Also, the risk based accident response support system proposed in this paper is explained using a simple case study of risk analysis for oil tanker grounding accident response.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.2
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• pp.167-182
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• 2022

The accident data attributes of the traffic accident report are used not only in traditional traffic safety-related research to identify the cause of traffic accidents, but also as basis data for the development of the automated vehicle driving performance verification scenarios. However, since the data attributes of the traffic accident report are limited for the purpose of reconstructing the traffic situation and developing scenarios, this study aims to provide the directions for improvement of traffic accident report, ultimately for its expanded usability for the automated vehicle test scenarios. The directions for improvement of the traffic accident report are provided by categorizing the traffic situation before the accident (pre-crash), the situation immediately before or during the accident (on-crash), and the situation after the accident (post-crash), respectively. Additional data items or data processing methods are presented. Furthermore, data elements that can be extracted from the traffic accident process data in the unstructured narrative form are explored and provided.

• Korean Chemical Engineering Research
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• v.54 no.4
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• pp.582-585
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• 2016

This study intends to provide initial evacuation distances for the public in case of accidental releases of hydrogen fluoride (HF). HF is a very toxic chemical that is widely used in the chemical, electrical, and electronics industries. Consequence modeling programs, such as ALOHA and PHAST, were used to help formulate a contingency plan in case of an HF leak. For the purpose of this study, the release of entire quantity of HF in 10 min is defined as a worst-case scenario and the release from a partial line rupture is used as an alternative case scenario as National Institute of Chemical Safety (NICS) guidelines. Once the discharge rates were calculated based on the scenarios, the ERPG-2 endpoint distances have been obtained for representative daytime and nighttime weather conditions. This paper presents graphs that can be used to enact swift evacuation orders and emergency response plans in the case of accidental releases of HF.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.5D
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• pp.727-737
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• 2011

The emergency restoration scenarios for efficient railway accident management and restoration were developed. The emergency restoration procedures defined by the worst case of emergency restoration and the important events was proposed based on questionnaires from specialists and the result of survey. Via these studies, the railway accident in the tunnel could be the worst case among all railway accident types. Therefore, educations for a restoration team in confined area condition should be planned and performed to recover the worst case accident. In order for the emergency restoration, when a railway accident is occurred, the restoration should be performed in orders of handing collapse of facilities, burying track, and derailment of vehicle in tunnel based on the statistical analysis. The result of priorities were established by the period of restoration. The standard operation system for efficient railway accident management was developed by synthesizing the worst case for rapid emergency restoration, and important events for the standard operation procedures according to each emergency restoration type. Through this study, the restoration operation system of railway accident are recommended. This paper suggests to develop emergency restoration scenarios for the efficient railway accident management and recovery system. The study results will contribute not only for insuring punctuality, but also for minimizing delays from accidents. Therefore, emergency restoration scenarios will play a major role in the SOP for the damage limitation and the prevention of accident spread.

• Fire Science and Engineering
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• v.15 no.4
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• pp.24-33
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• 2001

This article proposes a strategy for producing accident scenarios in quantitative risk, which is peformed in process design or operation steps. Present worldwide chemical processes need off-site risk assessment as well as on-site one. Most governments in the world require industrial companies to submit the proper emergency plans through off-site risk assessment. Korea is also preparing for executing Integrated Risk Management System along with PSM and SMS. However.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.219-221
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• 2023

첨단 디지털기술이 적용된 자율운항선박과 같이 인간의 개입을 획기적으로 줄인 첨단 시스템의 운용은, 대상 시스템의 운용 중 시스템에 영향을 미치는 다양한 변수들의 변화를 실시간으로 검토하여 안전한 시스템 운용을 위한 의사결정을 지원할 수 있는 위험도평가 방법론의 적용이 요구된다. 본 논문은, 자율운항선박의 충돌 사고 위험도를 실시간으로 분석하기 위한 위험도 모델의 개발을 목적으로, 자율운항선박 충돌 사고 시나리오에 대한 위험도분석 작업 수행 내용과 실시간 충돌 위험도를 표현하기 위하여 검토한 간략한 위험도 모델 개념들을 제시하고 있다. 위험도 모델 개발을 위하여, 먼저 자율운항선박의 항해, 통신, 비상대응 기능들을 분석하고, 기능분석 결과를 바탕으로 충돌 사고 빈도 산출을 위한 Fault Tree Analysis와 충돌 사고로 인한 영향 산출을 위한 Event Tree Analysis를 수행하였다. 또한, Fault Tree와 Event Tree의 입력값 중 외부 조건에 따라 변화하는 변수들을 식별하였고, 각 변수들에 입력값은 자율운항선박의 운항 조건에서 발생할 수 있는 가상 데이터를 만들어 사용하였으며, 식별된 각 변수들의 변화로 인한 자율운항선박 충돌 위험도 변화량을 검토하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.292-294
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• 2017

기업에서 보유하는 기밀 정보가 내부 직원에 의해 유출되는 사고가 빈번하게 발생하고 있다. 기업에서 데이터를 유출하려는 내부 직원을 탐지하기 위하여 보안 로그를 분석해주는 보안 관제 시스템을 사용하고 있으나, 보안 관제 시스템은 관리자가 지정하는 기준에 대해 보안 로그를 분석하기 때문에 새로운 유형의 데이터 유출 사고가 발생하였을 때 제대로 데이터 유출을 탐지할 수 없는 문제점을 가진다. 따라서 본 논문에서는 내부 직원의 업무활동에서 발생하는 보안 로그 리스트에 연관 분석을 적용하여 새롭게 데이터 유출 탐지 시나리오를 작성하여 기존의 시스템이 가진 문제점을 해결할 수 있는 방법을 소개한다. 연관 분석을 활용하여 정의한 데이터 유출 탐지 시나리오를 활용한 결과, 결과적으로 데이터 유출 탐지 성능이 향상되었다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2020.11a
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• pp.131-132
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• 2020

자율운항선박 지원 6종서비스는 자율운항선박의 도입에 따른 항계 및 협수로 내에서 터미널까지 안정적으로 통항과 자율적인 이·접안 및 화물 적·하역이 가능하도록 안전운항을 지원하는 기술을 의미한다. 자율운항선박 지원 6종서비스에는 근접 선박에 대한 연속 회피가 가능한 자율운항 지원 서비스, 인공지능 센서 융합을 통한 접·이안 및 계류 지원 서비스, 스마트 해상 물류 프로세스를 위한 화물 양·적하 및 선박 입출항 지원 서비스, PSC 점검율 제고를 위한 PSC 점검 지원 서비스, 선박의 주요 기기를 육상에서 관찰하기 위한 상태모니터링 지원 서비스, 해양사고 발생 시 신속한 조치를 위한 사고대응 지원 서비스로 이루어져 있다. 이 연구에서는 개발되는 안전운항 지원서비스 6종의 실용성 및 현장 적용 가능성을 테스트하기 위한 실선박 기반의 검증 시나리오를 개발하고 6종 서비스의 육상 시범 운용을 위한 인프라를 구축하고자 하였다.