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최병주,김지은,김진수,김창욱,Choi, Byeong Ju,Kim, Ji Eun,Kim, Jin Soo,Kim, Chang Ouk 한국군사과학기술학회 2016 한국군사과학기술학회지 Vol.19 No.1
Threat evaluation is a process to estimate the threat score which enemy aerial threat poses to defended assets. The objective of threat evaluation is concerned with making an engagement priority list for optimal weapon allocation. Traditionally, the threat evaluation of massive air threats has been carried out by air defence experts, but the human decision making is less effective in real aerial attack situations with massive enemy fighters. Therefore, automation to enhance the speed and efficiency of the human operation is required. The automatic threat evaluation by air defense experts who will perform multi-variable judgment needs formal models to accurately quantify their linguistic evaluation of threat level. In this paper we propose a threat evaluation model by using a fuzzy rule-based inference method. Fuzzy inference is an appropriate method for quantifying threat level and integrating various threat attribute information. The performance of the model has been tested with a simulation that reflected real air threat situation and it has been verified that the proposed model was better than two conventional threat evaluation models.
최병주 ( Byeong Ju Choi ),이상길 ( Sanggil Lee ),김성규 ( Seonggyu Kim ),성정민 ( Jungmin Sung ),예신희 ( Shinhee Ye ) 한국산업보건학회 2021 한국산업보건학회지 Vol.31 No.3
Objectives: The reproductive health of female workers has been extensively investigated in South Korea and other countries worldwide. However, few studies have discussed the reproductive health of male workers. In this study, we reviewed the recent literature that reports on the effects of occupational exposure on the reproductive health of male workers and the health of their children. Methods: In May 2020 we used the PubMed search engine to search the literature over the last 10 years and chose case-control, cohort, and cross-sectional studies and reviews. We selected epidemiological studies that investigated the association between pre-pregnant occupational exposure and the reproductive health of male workers and the health of their children. We excluded case reports, non-epidemiological studies (animal experiments, cellular-level experiments, and similar articles), and studies that described postnatal occupational exposure. Results: We eventually selected 23 studies. The studies that included exclusively male workers reported that those employed in the agricultural sector or those exposed to pesticides showed lower blood levels of reproductive hormones and a high risk of lympho-hematopoietic system cancer in their children. Male workers exposed to complex organic solvents and organic compounds showed a high risk of poor semen quality, increased time to pregnancy, decreased blood levels of reproductive hormones, and a high risk of lympho-hematopoietic system cancer in their children. Male workers employed in occupations that involved significant social contact, or in the leather and livestock industries, and in occupations with high levels of exposure to lead and organic solvents showed a high risk of malignancies, including lympho-hematopoietic system cancer, neuroblastoma, and central nervous system tumors in their children. Studies that investigated both male and female workers reported that children of male smelters showed a high risk of premature birth, and children of male workers exposed to metals showed a high risk of hypospadias and cryptorchidism. Children of male welders and workers employed in the glass, ceramic, and tile industries showed a high risk of premature birth. Conclusion: The findings of this study will serve as basic data for further research on male workers' reproductive health and provide a scientific basis for the development of strategies to protect the reproductive health of males employed in high-risk occupations. Moreover, the results of this study may provide guidelines to improve the understanding of and knowledge on male workers’ reproductive health.
알루미늄 거푸집에 관한 가설기자재 안전인증제도 개선방안
김법수(Kim Beop-Su),박준모(Park Jun-Mo),오병한(Oh Byoung-Han),김옥규(Kim Ok-Kyue),최병주(Choi Byeong-Ju) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
Accident for temporary equipment is the largest disaster in construction sector. Safety certification system is trying to prevent a disaster in Korea. However, some of construction temporary equipment are not prescribed the system or other law, it is aluminum form that used to construction site lately and was expensive. In this study, it review law related on construction temporary equipment about aluminum form and surveyed problems of material standard, using and managing by interview to construction managers and experts. As a result, it is recognized that law and specification of construction temporary equipment is inadeguated and is not managed systemically. Therefore, aluminum form could manage to obliagted system or quality management.