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화물자동차운송의 과적 차량 단속 체계 개선방안에 관한 연구
추창엽,한백수 한국물류학회 2000 물류학회지 Vol.10 No.1
The best way to eradicate the operation of overloaded vehicles is that those related to cargo transport should abide by prescribed regulations, but if they are not observed well, road managers have responsibilities and duties to preserve the road facilities constructed by the taxes of the people from a handful groups pursuing illegal profits by restricting illegal operation and imposing punishments. According to rapid economic growth since 1970s. our country has deeply recognized adverse effects of operation of overloaded vehicles starting with the activation of cargo distribution, each road manager has cracked down operation restricted vehicles, but they has not reached such extent as completely eliminate the operation of overloaded vehicles by the lack of crackdown personnel and facilities. This article aimed at draw out the problems in the existing crackdown system and presenting the reform plans to bring forth the countermeasures to eradicate the operation of overloaded vehicles in the national road.
추창엽,이정석,백종배 한국안전학회 2019 한국안전학회지 Vol.34 No.4
During the manufacturing process of a printed circuit board(PCB), fumes and mists are generated as the ink dries on the PCB surface. The generated fumes and mists are deposited in the dryer wall and the exhaust duct. Deposited fumes and mists may present a fire hazard if the dryer temperature control system fails. In this study, the thermal stability of the fumes and mists deposited in the dryer and ducts has been analyzed by experimental methods such as thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC), auto ignition temperature (AIT), and multiple mode calorimetry(MMC). According to the experimental analyses, experimental samples are likely to generate gas at the temperature (180 ~ 240℃) that deviates from the normal operating temperature (150 ~ 156℃). It has been shown that the thermal stability is degraded when the temperature is deviated from the normal operating temperature. In the end, engineering and management safety measures of accidental prevention have been suggested.
신뢰도 데이터베이스 기반 부식성 화학물질 취급공정의 안전설계
추창엽 ( Chang Yeop Chu ),백종배 ( Jong Bae Baek ) 한국안전학회(구 한국산업안전학회) 2018 한국안전학회지 Vol.33 No.5
In a PCB factory, there is a corrosive chemical substance supply system that can causes major leakage accidents. These accidents can give rise to shut down the factory and do residents damage that cause enormous loss of properties. To mitigate these risks, it is necessary to provide a chemical disaster prevention system. Moreover, after considering the situation and environment of the production site, it is of great importance to build an optimal chemical accident prevention system by reflecting risk reduction measures from the point of process design and by assessing quantitative risk based on reliability data. However, because there was no established database of the reliability about facilities and equipment that can be used in the domestic, the business site and consulting organization had being used the reliability data such as USA CCPS(Center for Chemical Process Safety). In these days, Korean institutes are studying on reliability data utilization method of quantitative risk assessment for preventing chemical accidents and domestic utilization algorithms and storage bed of reliability data. This study presents samples of reliability database about the chemical substance supply system that constructed from the history data such as failure, maintenance for 10 years at a PCB factory. Also, this work proposes the safety design criteria for supply facilities of corrosive chemical substance by assessing quantitative risk on the basis of the reliability data.