• Title/Summary/Keyword: Safety city

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Development of Risk Assessment Techniques for City Gas Pipeline II - Corrosion Analysis (도시가스배관 위험평가기술 개발 II - 부식 평가)

  • Park Kyo-Shik;Lee Jin-Han;Jo Young-Do;Park Jin-Hee
    • Journal of the Korean Institute of Gas
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    • v.7 no.2 s.19
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    • pp.1-6
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    • 2003
  • In this work, procedure evaluating failure modes such as pipe rupture, large scale leak, and small scale leak was suggested using equations to assess remaining strength by corrosion failure. Additionally, the method to predict probability of failure was suggested according to the aforementioned failure modes, and by combining data on corrosion rate, probability of long-term failure can be induced. This work will be very useful in predicting lifetime or exchanging period of pipeline.

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Public Perception and Communication Patterns Pertaining to Nuclear Power in Korea: Focusing on the Transition Period from Pro-nuclear to De-nuclear Policy

  • Eunok Han;Yoonseok Choi
    • Journal of Radiation Protection and Research
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    • v.47 no.4
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    • pp.226-236
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    • 2022
  • Background: An effective communication strategy for reducing conflicts in South Korea has been designed through the analysis of public perception and communication variables on nuclear power under the conditions of rapidly changing nuclear power policies. Materials and Methods: This study conducted both qualitative research through group discussions based on social psychology and quantitative research through surveys. Results and Discussion: Nuclear power plant (NPP) area residents in favor of nuclear power indicated higher levels of communication, safety perception, and contribution than those against it. NPP area residents trusted the civilian expert groups (18.3%) and local government (17.3%) the most, while metropolitan city residents trusted the Nuclear Safety and Security Commission and the Korea Institute of Nuclear Safety (20.7%) the most. In determining nuclear power policy, both the NPP area residents (18.1%) and metropolitan city residents (17.1%) prioritized safety, health, and the environment. While metropolitan city residents thought that energy security and economic growth (16.4%) were important, NPP area residents thought the current issue of spent fuel rods (14.1%) to be important. Conclusion: It is necessary for the nuclear power industry to have and actively implement communication and conflict resolution strategies based on the patterns obtained in the study results.

A study on the City-gas Pipeline Management System by Reliability Based Design and Assessment (신뢰도평가 기반 도시가스배관 종합관리시스템 구축 연구)

  • Oh, Dong-Seok;Lee, Jin-Han
    • Journal of the Korean Institute of Gas
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    • v.22 no.6
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    • pp.129-135
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    • 2018
  • For efficiently safety management of city gas pipelines, the City-gas Pipeline Management System(CPMS) has been developed to systematically manage and analyze the data collected from 33 city gas companies and to effectively perform internal and external affairs related to gas safety management. The piping information data uploaded to the CPMS is ranked the risk according to the criteria specified in the KGS Code, and the safety management of the piping has performed close inspection according to the risk ranking. However, the criteria for deriving the risk ranking is very simple and lacks relevant grounds, and the reliability for the determination of the close inspection pipeline is no high due to the redundant rank. Therefore, we developed a risk assessment program based on the Reliability Based Design Assessment(RBDA) methodology and tried to derive a reasonable risk ranking by linking it with the CPMS system.

Case Study on the Hybrid Sensor Network for the u-City Service (u-City 서비스를 위한 하이브리드 센서망 분석)

  • Park, Byoung-Tae;Choi, Yeon-Suk;Lim, Seok-Jin
    • Proceedings of the Safety Management and Science Conference
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    • 2010.04a
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    • pp.393-400
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    • 2010
  • 현재까지 USN(Ubiquitous Sensor Network)이라 통칭되어지는 센서망은 불특정 공간에 배포된 무선방식의 센서노드를 통해 유선방식의 센서 인프라를 대체하려는 기술 지향적 및 공급자중심의 구성을 가지고 있다. 본 논문은 기존의 공급자 위주의 기술지향적인 제한적 구성에서 벗어나, u-City에서 제공하고자 하는 서비스들의 목적과 서비스 대상의 요구사항분석을 기반으로 성능, 품질, 비용 등을 고려하도록 다양한 기술들을 융 복합하여 서비스를 제공하는 하이브리드 센서망의 제안을 위한 선행 연구 결과이다. 우선, 센서망과 u-City 서비스와의 관계에 대해 서술한 후, 기존 센서망에 대한 조사, 분석 결과 및 문제점, 그리고 선진국에서의 하이브리드 센서망 적용 사례와 시사점에 대해 논의하도록 한다.

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Mediating Effect of Ego-Resilience in the Relationship between Social Capital and Safety Awareness·Safety Pursuit Behavior of Adult Learner : Focusing on Changwon City (성인학습자의 사회적 자본과 안전의식·안전추구행동과의 관계에서 자아탄력성의 매개효과 : 창원지역 중심으로)

  • PARK, Sin-Young;EO, Yong-Sook
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.1
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    • pp.162-171
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    • 2016
  • The purpose of this study was to examine the mediation of ego-resilience in the relationship between social capital and safety awareness safety pursuit behavior of adult learners in order to provide a basis for planning safety education to improve the safety behaviors. The participants were 162 adult learners who participated in the "Go to find safety classroom of citizens" in Changwon city. Data were collected using self-report questionnaires and analyzed with the SPSS-WIN 20.0 program. As a results, first, the mean score for social capital was 3.36(social confidence 3.38, reciprocal norms 3.29, networks 3.22, democratic citizen awareness 3.56), ego-resilience 3.57. Second, social capital was significant correlation ego-resilience(r=.63, p<.001) and safety awareness safety pursuit behavior(r=.44, p<.001). Third, ego-resilience was significant correlation safety awareness safety pursuit behavior(r=.54, p<.001). Forth, ego-resilience had a partial mediating effect in the relationship between social capital and safety awareness safety pursuit behavior. Based on these findings of this study, safety education focusing on ego-resilience and social capital improvement are highly recommended to promote safety behavior in adult learners.

Development of evaluation system and Importance analysis of U-safe city (U-안전도시 평가체계 개발 및 중요도분석)

  • Kang, Soon-Bong;Kwon, Chang-Hee
    • Journal of Digital Convergence
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    • v.11 no.11
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    • pp.15-27
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    • 2013
  • The purpose of this study is to develop the evaluation system of which the city safety can be realized in the U-City. The evaluation system on "how much safe the present city is" and "how much safe it will be in the future" has been selected and the criticality has also been analyzed. The result of criticality analysis is that the indicator for "how safe the current city is" showed that the disaster prevention and environmental field are important. In the future, the indicator of possibility for the U-safe city should be prepared by the imtegrative operation management system, and on the basis of this, it also showed that the necessary indicator to build the system for keeping the safe city is important. The evaluation system for the U-safe city, hereafter, can be utilized for the city plan, construction, operation, and management utilized by IT in local government.

Effects of Safety Awareness and Self-Efficacy on Safety Practice with Elementary School Studentsts: Focusing on the Changwon City (안전의식, 자기효능감이 초등학생들의 안전실천에 미치는 영향: 경남 창원시를 중심으로)

  • PARK, Sin-Young;EO, Yong-Sook
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.2
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    • pp.515-524
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    • 2016
  • The purpose of this study was to identify how safety awareness and self-efficacy affect the safety practice with elementary school students. The participants were 369 elementary school students(4~6th grade) in Changwon city. Data were collected using self-report questionnaires and analyzed with the SPSSWIN 22.0 program. Analysis methods were t-test, one way ANOVA, Scheffe test, Pearsons correlation coefficient and multiple linear regression. As a results, safety awareness was an average 2.97 point which was moderate levels and self-efficacy was on over intermediate level of an average 3.73 point. Safety practice was an 3.00 point. Safety practice had statistically significant difference according to grade, number of family, mother's education, character and school life attitude. Safety awareness(r=.41, p<.001) and self-efficacy(r=.39, p<.001) was significant correlation with safety practice. Fire safety(${\beta}=.22$, t=3.56) and self-efficacy(${\beta}=.27$, t=5.32) were significantly influenced safety practice and explaining 24.0% of the variance. From the results of this study, I proposed the education programs to increase safety practice in elementary school students that emphasizes self-efficacy and safety awareness.