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정병용(B.Y. Jeong),이재헌(J.H. Lee),여영구(Y.K. Yeo),문승재(S.J. Moon),유호선(H.S. Yoo) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The booster fans for the flue gas desulfurization(FGD) plant of heavy oil fired 200㎿ power plant transport the flue gas from the boiler to the FGD Plant. The fan is exposed to the gases contained sulphur dioxide and nitrous oxides together with moisture, soot particles and small amounts of ash. Blades need rotary motion and adequate corrosion-erosion resistance at the same time. A solution to the both of them, they has been used Metcoloy®2 as protective coating but it is failed. In this study, investigated the coating failure of the blades of booster fans. Bond strength tests and practical field experiences have demonstrated that High Velocity Oxy-fuel(HVOF) coating method with Diamalloy 3004, as and alternative to Metcoloy®2
정병용(Byung Yong Jeong),이동경(Dong Kyung Lee) 대한인간공학회 2019 大韓人間工學會誌 Vol.38 No.2
Objective: The aim of this study is to investigate the characteristics of working conditions and workers` safety awareness by types of occupation in the service industry. Background: While Korea`s service industry continues to grow, the number of occupational injuries also continues to increase. Method: This study carried out a questionnaire survey in eight occupations of service industry. Service workers were surveyed in terms of working conditions, including employment status, salary level, and safety education experience, and also in regards to safety awareness, including the level of work hazard and level of compliance with safety regulations. Results: The questionnaire survey found that the eight occupations had different distributions of employment status, as well as different averages in age, work experience, and salary level. Furthermore, the survey identified differences in the level of work hazard and level of compliance with safety regulations according to occupation. Conclusion: The findings of this study signify the need to establish customized injury prevention measures for each occupation according to its own characteristic working conditions, worker composition, and safety awareness. Application: The relationship between working conditions and safety awareness identified in this study is expected to contribute to the design of injury prevention measures.
정병용(Byung Yong Jeong) 대한인간공학회 2010 大韓人間工學會誌 Vol.29 No.4
The purpose of this study is to identify the trends and features of existing articles on work-related musculoskeletal disorders (WMSD), and to suggest the direction for future work. Articles on WMSD were reviewed and analyzed by research objects and characteristics. This paper describes a number of issues related to strategies and practices which were done in order to prevent work-related musculoskeletal disorders; 1) trends and characteristics of work-related musculoskeletal disorders, 2) legal enforcement related to systems preventing WMSD, 3) workplace assessment methods and guidelines for manual material handling, 4) ergonomic intervention, ergonomics program and its effectiveness. A list of recommendations presented in this study can be used to provide a baseline for the prevention of work-related musculoskeletal disorders.
정병용,박경주,Jeong, Byeong-Yong,Park, Gyeong-Ju 대한인간공학회 1986 大韓人間工學會誌 Vol.5 No.1
This study intends to improve the efficiencies of school works by proposing a method of determining the standard sizes of chairs and desks. To achive this purpose, eight measurements were taken of 1248 school children. The main results drawn from this study are : 1. There are significant correlations between stature and popliteal height and between stature and elbow height (seated). 2. There are significant differences between men and women of similar stature in respect of popliteal height. 3. The standard sizes of chairs and desks ought to be based on the characteristics of human body size and their relationship.
정병용,이종협,김국,Jeong, Byung-Yong,Lee, Jong-Hyup,Kim, Kuk 대한인간공학회 2005 大韓人間工學會誌 Vol.24 No.4
Efforts to identify jobs or tasks having known risk factors for work-related musculoskeletal disorder can provide the groundwork for changes aimed at risk reduction. An effective identification method is the ergonomic job hazard analysis which breaks a job into its various elements or actions, describes them, measures and quantifies the ergonomics risk factors. Some analytical methods including OWAS, RULA, REBA, and NLE have been used as tools in quantifying the risk factors. But these traditional methods using worksheet or paper are difficult to explain to participants for performing the job hazard analysis in the field, and take a long time. We develop some software tools to implement the analytical methods using EXCEL programs or computer program. These tools developed in this study are faster and easier to perform the ergonomic job analysis than the traditional methods using worksheet.
정병용,Jeong, Byung-Yong 대한인간공학회 2007 大韓人間工學會誌 Vol.26 No.2
In 2003 the Korean Government introduced 'the risk factors analysis system' in order to prevent the work-related musculoskeletal disorders. In addition, the proclamation by the Ministry of Labor delineated eleven spheres of work associated with musculoskeletal disorders. According to Occupational Safety and Health Regulations, business proprietors who have workers engaged in tasks associated with musculoskeletal disorders are required to carry out a survey on risk factors every three years. Effective risk factors analysis principles and practices will succeed by refining the workplaces continuously. However, numerous difficulties arise during the application of risk factors analysis to the various industries. We discuss a number of issues related to risk factors analysis system, and suggest a number of directions for future work in this area.
정병용,박경수,Jeong, Byeong-Yong,Park, Gyeong-Su 대한인간공학회 1988 大韓人間工學會誌 Vol.7 No.1
An instrumentation system for the automatic measurement of body sway has been developed. The system consists of a force platform, amplifiers, and data acquisition and display software, operating on a computer. We used only the force platform and electronic amplifying unit in Kistler Biomechanics System to obtain precise measurements, and developed the data acquisition and analysis software using an IBM PC With 12 bit A/D converter. The system can be used in various specialized disciplines, such as ergonomics, rehabilitation, neuromuscular control, as well as sprots biomechanics.
탈황설비용 부스터팬 블레이드의 코팅재질 선정에 관한 연구
정병용,유호선,문승재,Jeong, Byeong-Yong,Yoo, Hoseon,Moon, Seung-Jae 한국플랜트학회 2010 플랜트 저널 Vol.6 No.3
This study investigated the coating failure of the blades of booster fans for the 200 MW flue gas desulfurization plant. Although the arc sprayed SM8222 have been tried as blade coating materials aimed to apply as alternatives of Metcoloy(R)2 due to better corrosion-erosion resistance but it is failed. Bond strength tests and practical field experiences have demonstrated high velocity oxy-fuel(HVOF) coating method with Diamalloy 3004 as an alternative to Metcoloy(R) 2 arc spray.