http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정향수,황연진,권예랑,조영석,윤창원 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
Formic acid (FA, HCOOH) has been regarded as a promising hydrogen storage material (53 g/L) because of its mild reaction conditions upon dehydrogenation. Its conjugate base, formate salt (FS, MHCO2, M = Na, K, NH4), receives less attention as a hydrogen storage material (28 g/L) due to its low hydrogen storage capacity and reactivity. However, FS presents several advantages over FA for its low toxicity and thermodynamic adequacy for reversible hydrogen storage and release by coupling to a bicarbonate salt. In this presentation, physiochemical and thermodynamic properties of formate and bicarbonate cycle are presented to understand the storage and deliverable hydrogen capacity. In addition, catalytic performances upon dehydrogenation reactions of various FS depending on the reaction temperature and concentration are presented for fuel cell power applications.
김은혜,문준관,이혜리,김수희,황연진,김병준,이진범,이동혁,김정한 한국원예학회 2013 원예과학기술지 Vol.31 No.2
Occupational exposure and risk assessment were conducted to evaluate the safety of operators when insecticide acetamiprid was applied to apple orchard using a speed sprayer. Dermal patches, cotton gloves,socks, and masks were used to monitor the dermal exposure, and personal air pump with solid sorbent was used to measure the potential inhalation exposure. In validation to analytical methods, the limit of detection and limit of quantitation were 0.25 ng and 1 ng, respectively. Good reproducibility (coefficient variation <4%), linearity (coefficient determination > 0.999), and recovery (85.3-118.2%) were obtained. Trapping efficiency of solid sorbent was 96.4% while breakthrough did not occur. Only hand exposure was measured on the gloves during mixing/loading to give 33-1,132 μg. Exposure amount of operator 3 among 4 workers was noticeably high. The total volumes of spray liquid for operators were 535-1,235 mL·h-1, corresponding to 0.03-0.08% of the applied spray solution. Highest contaminated parts of body were thighs, chest, and lower legs. The inhalation exposure ratio to the total application amount was significantly low. However, wind seemed to affect the inhalation exposure of operator. For risk assessment, margin of safety was calculated by the application of cloth and dermal penetration rate to obtain values of much larger than 1 in all cases. Therefore,health risk of operators during treatment of acetamiprid in apple orchard could be of least possibility.