• 제목/요약/키워드: Safety Issue

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비정규 공정을 위한 공정관리도의 연구동향 분석 (Research Results and Trends Analysis on Process Control Charts for Non-normal Process)

  • 김종걸;김창수;엄상준;김형만;최성원;정동구
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2013년 춘계학술대회
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    • pp.547-556
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    • 2013
  • Control chart is most widely used in SPC(Statistical Process Control), Recently it is a critical issue that the standard control chart is not suitable to non-normal process with very small percent defective. Especially, this problem causes serious errors in the reliability procurement, such as semiconductor, high-precision machining and chemical process etc. Procuring process control technique for non-normal process with very small percent defective and perturbation is becoming urgent. Control chart technique in non-normal distribution become very important issue. In this paper, we investigate on research trend of control charts under non-normal distribution.

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비정규 공정에서의 누적합 관리도 적용에 관한 연구 (A Study on the Application of CUSUM Control Charts under Non-normal Process)

  • 김종걸;엄상준;최성원
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2011년도 추계학술대회
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    • pp.535-549
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    • 2011
  • Control chart is most widely used in SPC(Statistical Process Control), Recently it is a critical issue that the standard control chart is not suitable to non-normal process with very small percent defective. Especially, this problem causes serious errors in the reliability procurement, such as semiconductor, high-precision machining and chemical process etc. Procuring process control technique for non-normal process with very small percent defective and perturbation is becoming urgent. Control chart technique in non-normal distribution become very important issue. In this paper, we investigate on research trend of control charts under non-normal distribution with very small percent defective and perturbation, and propose some variable-transformation methods applicable to CUSUM control charts in non-normal process.

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한국 반도체관련 산업의 사업장 안전 분위기와 근로자들의 안전행동에 관한 실증적 연구 (An Empirical Study on the Safety Climate and Worker's Safe Work Behavior in Semiconductor Industry Related Work Site in Korea)

  • 정낙경;김홍
    • 한국안전학회지
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    • 제23권2호
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    • pp.57-64
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    • 2008
  • The Semiconductor industry in Korea has achieved a great contribution to the growth of its economy for the last 20 years with its product export ranked to #1 nowadays. However, the working environment in semiconductor industry is always exposed to a potential risk of critical safety issue for workers with many kinds of utilities used such as toxic chemicals, gases, high vacuum and high voltages of electricity. This study is focused on empirical research to find out the factors on safety climate and to examine the relationships of safety climate and safe work behaviour in the work site of Korea semiconductor industry. As a result of simulation, a strong positive relationships and safe work behaviour have been identified in this study. Its result and implications has been discussed and suggested further studies on its limitation from this study.

시험·연구용 유전자변형생물체(LMO) 안전관리를 위한 안전교육 활성화 방안 (A Study on Activation Strategy of Biosafety Training for LMO Research Safety Management)

  • 노영희;민완기;정규진
    • 한국안전학회지
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    • 제29권2호
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    • pp.98-105
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    • 2014
  • Biosafety has become quite sensitive issues according to dramatic development of biotechnology and LMO(Living Modifying Organism) is one of the key issue in biosafety. This study is an exploratory research for investigating the activation strategy of biosafety training management in LMO research field. Based on the survey data, main results are derived through various statistical analysis methodology such as descriptive analysis, factor analysis, reliability analysis, analysis of variance and regression analysis. According to the analysis results, some activation strategies are required to reach the target such as extension of specialized biosafety training program, enhancement of safety consciousness from the undergraduate courses, introduction of appropriate safety regulations, unification of safety management and establishment of safety management system.

중장기 철도안전계획 수립을 위한 철도시스템 문제점 도출 연구 (Identification of Railway Safety Issue for Mid and Long Term Safety Plan)

  • 곽상록;박주남;왕종배;조연옥
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2005년도 추계학술대회 논문집
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    • pp.32-37
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    • 2005
  • Many developed countries use risk based safety management system. Currently many research efforts are made for the application of risk concept in safety management within the boundary of the railway safety act 2005. But results of these efforts can be applied around 2008 due to many background data and analysis techniques. For the prompt and efficient construction of mid and long term safety plan$(2006\~2010)$ various reports on safety issues and expert opinions are analysed in this study without risk analysis. Identification of railway safety issues are summarized and effective measure are proposed in this study.

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주요국 식품안전 조직 및 주요정책 (Selected countries' food safety agencies and policies)

  • 이희정
    • 식품과학과 산업
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    • 제50권2호
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    • pp.98-109
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    • 2017
  • he safety and quality of the food supply are governed by a complex system and food safety management is one of the most important tasks of every government and government agency. Different types of policies have been developed and emplyed to address current and upcoming challegnes. In many counties including South Korea, much effort has been made to reform food safety system including organizational transformation and policy change. Food safety agencies including their history in four countries -U.S., England, Japan, and EU- are reviewd and major policies which have been recently employed by thses four contries are also examined. Additionally, the report of EU food safety and nutiriton in 2050 is introduced and scenarios of future change and policy responses in the report are exmained. Lastly, insight into this issue is given based on review of organizational transformation and major policies in four countries.

CRITICAL FACTORS AFFECTING SAFETY IN THE SINGAPORE CONSTRUCTION INDUSTRY

  • Sze Ming Woo;Charles Y.J. Cheah;Wai Fan Wong
    • 국제학술발표논문집
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    • The 2th International Conference on Construction Engineering and Project Management
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    • pp.759-768
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    • 2007
  • Construction is one of the most hazardous industries due to its unique nature. Recent occurrences of highly publicised and criticized construction site accidents have highlighted the immediate need for the construction industry to address safety hazards. Safety used to be addressed as an isolated issue in the past, but the problem of safety is an emergent property of a system. In general, it seems that both industrial practitioners and government officials have tended to address safety by focusing on technical aspects and looking for immediate causes of accidents after they have taken place. The objective of this paper is to examine issues and critical factors that affect the safety standards from a holistic point of view. The job of making worksites safe should not just fall squarely on the contractors but should be shared by all parties in the value chain of construction activities.

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설계 안전성 검토 결과를 활용한 시공단계 안전관리 업무 개선 - 설계 안전성 검토와 안전관리계획의 연계를 중심으로 (A Study on the Improvement of Safety Management at the Construction Stage using Design for Safety Results - Focusing on the Connection between Design for Safety and Safety Management Plan)

  • 이군재
    • 한국안전학회지
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    • 제35권6호
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    • pp.54-60
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    • 2020
  • Recently, the issue of construction safety is growing. In the construction industry, accidents have continued to increase since 2000. In particular, the number of accident deaths at small and medium-sized construction sites accounts for 72.11% of the total number of accident deaths in the construction industry. For construction safety, prior safety evaluation systems such as Design for safety and safety management plan preparation are in place. However, at construction sites, these systems are recognized as formal legal documents, and their effectiveness is greatly reduced. Therefore, in this study, a linkage model that links design safety review information and safety management plan information was presented so that the safety management plan can be efficiently established. In addition, the effectiveness of the proposed process was verified as an example of actual work. The linkage model will contribute to improving the safety management environment at the site by increasing the productivity of safety management work by enabling easy sharing of risk factor information in the construction stage safety management work. The results of this study will be used as basic information for the development of the integrated safety management system.

The Role of Safety Silence Motives to Safety Communication and Safety Participation in Different Sectors of Small and Medium Enterprises Investigation Results on Two Kinds of Industries in Indonesia

  • Ansori, Nachnul;Widyanti, Ari;Yassierli, Yassierli
    • Safety and Health at Work
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    • 제12권2호
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    • pp.192-200
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    • 2021
  • Background: A number of accidents have occurred in small and medium enterprises (SMEs). Efforts in reducing accidents have been undertaken through the implementation of safety behaviors. Unfortunately, few studies have examined motives behind unsafe behaviors, such as safety silence motives. This study aimed to observe the motives underlying safety behaviors, namely safety silence motive (SSM) (SSM-relation, SSM-climate, SSM-issue, and SSM-job) and to evaluate the effect of SSM and safety communication on safety participation in different industrial sectors and scales. Materials and Methods: Eighty workers from two industrial sectors and scales of SMEs were involved. They were instructed to fill out a set of questionnaires. A five-Likert scale was used to respond. An independent t test was applied to find any significant differences. The partial least square-structural equation modeling for multigroup was used to develop a model on relations among the variables. Results: The results showed that SSM scores were high in SMEs, and the scores were different across industrial sectors and scales. SSM had a negative influence on safety communication, and safety communication positively influenced safety participation. Conclusion: The study of SSM, safety communication, and safety participation in different sectors and scales should be separated in SMEs.