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안전관리전문기관 종사자의 직무환경이 직무만족에 미치는 영향에 관한 연구 - 안전환경, 직무자율, 직장문화 -
김득환,이준원,어원석,이윤호,임충동 사단법인 한국안전문화학회 2024 안전문화연구 Vol.- No.28
On November 30, 2022, the government also unveiled the "Serious Accidents Reduction Roadmap," emphasizing collaboration between safety management agencies and private accident prevention agencies, and governance for a safe and healthy workplace. This study, based on Article 17, Paragraph 5 of the Industrial Safety and Health Act, involves 361 workers in workplaces with 50 to 300 regular workers who have delegated safety management tasks to safety management agencies. The study aims to improve job satisfaction by enhancing the working environment of workers performing safety management tasks through high-quality safety management technical guidance, inspection, and other services. Using the KOSS basic form of KOSHA GUIDE H-67-2022, "Guidelines for Measuring Job Stress Factors," the research method involved surveying workers in four areas and 18 items. The study hypothesized that job environmental factors significantly influence job satisfaction, with safety environment, job autonomy, and workplace culture reconstructed as independent variables and job satisfaction as the dependent variable. The results showed that job environmental factors explained 46.1% of job satisfaction (R² = 0.461). The regression model was appropriate at F = 101.788 ( =0.001). The impact of job environmental factors on job satisfaction revealed significant positive effects for safety environment (β = 0.126, p < 0.01), job autonomy (β = 0.332, p < 0.001), and workplace culture (β = 0.381, p < 0.001). The relative impact indicated that workplace culture, job autonomy, and safety environment ranked in descending order. The study concluded that improving job environmental factors in safety management entrusted workplaces through specialized technical guidance and inspections positively impacts job satisfaction. Urgent attention from individuals, institutions, and the government is necessary, alongside institutional improvements, to prevent and reduce industrial accidents in safety management entrusted workplaces.
김득환,황순재,조대진,이준원 대한안전경영과학회 2023 대한안전경영과학회지 Vol.25 No.2
Since last year, the government has enforced the 'Act on the Punishment of Severe Accidents, Etc.' (hereafter referred to as the 'Serious Accident Punishment Act'), which punishes business owners and business managers who fail to fulfill their duty of safety measures with 'imprisonment of one year or more' and the Occupational Safety and Health Act. Based on this, various occupational safety and health policies were developed, including the operation of a system related to entrusting the work of safety managers. Despite these efforts, the effect of implementing the Severe Accident Punishment Act is a groundbreaking change in the current disaster prevention policy, which has increased by 0.02%P and 0.03‱P, respectively, from the previous year to 0.65% of the total accident rate and 1.10‱ of the death rate per 10,000 people as of 2022. As the need emerged, attention was paid to 'collaboration and governance with safety management institutions' in the 'Severe Disaster Reduction Roadmap' announced by the Ministry of Employment and Labor in November 2022. In this study, a meaningful result was derived by comparing and analyzing the industrial accident status of workplaces entrusted by “A” safety management institutions with the national average based on the industrial accident survey table, and the types of industrial accidents that occurred in consigned workplaces were selected as intensive management targets. The policy direction for industrial accident prevention was established. It is necessary to develop safety management work manuals based on the results of this study, expertise, discover best cases of risk assessment and develop guides, and educate and train consigned workers. In addition, it suggests that the government's guidance and supervision are needed to advance the professionalism of safety management entrusted tasks, and that safety management institutions should strengthen their roles and functions for preventing and reducing industrial accidents. However, due to difficulties in disclosing information of specialized safety management institutions, the limitation of the provision, collection, and viewing of research-related data to “A” specialized safety management institutions remains a limitation of the research. It seems likely that more thorough research will be conducted.
독성물질 누출 시 방호계층 적용에 따른 사업장 내 근로자 피해 영향 연구
황순재,이준원,김득환,최상찬 한국가스학회 2023 한국가스학회지 Vol.27 No.4
The effective evacuation strategy according to the accident scenario is crucial to minimize human casualties in the event of toxic gas leak accidents. In this study, the effect of the direction of a building and the location of an industrial complex on the increase in indoor concentration and outdoor diffusion was examined under the same leakage conditions, and effective evacuation criteria were established. In addition, the guidelines for building directions were suggested when constructing buildings that would mitigate human damage caused by chemical accidents. Three scenarios where buildings faced the front, side, and rear of the leakage direction were investigated through CFD simulations. The results revealed that when the building faced the industrial complex, both indoor and outdoor average gas concentrations increased significantly, reaching up to 120 times higher than the other two orientations. Moreover, the indoor space was filled with toxic gas substances more than twice in the same time due to the rapid increase of indoor concentration rate. In cases where the building's windows were positioned at the front, toxic gas stagnation occurred around the building due to pressure differences and reduced flow velocities. Based on our findings, the implementation of these guidelines will contribute to safeguarding residents by minimizing exposure to toxic gas during chemical accidents.
김재광,김다은,이일복,황기범,김효성,김득환,최진혁,윤성훈 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0
Ordered mesoporous carbon has been intensively investigated for its novel structure and high surface area since these properties are beneficial to energy storage materials. Furthermore, it has been applied to composites containing electroactive metal oxide for use as lithium ion batteries (LIBs). Among the metal oxides, TiO2 has a low electrical conductivity, not beneficial to rate capability, in nature so that requires well-developed, widely penetrated conducting networks. Also, TiO2 prefers amorphous phase for the better cyclability. Graphene, 2D conductive layers of graphitic sheets, are extremely researched since it provided higher rate capability and mechanical strength to energy storage materials. Herein, a tetra-constituent co-assembly method with graphene sheets was applied to produce amorphous TiO2 and smaller surface maintaining ordered mesopores for easy electrolyte transport. On this presentation, the product was investigated.