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사과 ‘감홍’의 착과량에 따른 고두병 발생과 과실 칼슘 함량
서정학(Jeong Hak Seo),허종행(Jong Haeng Heo),최종승(Jong Seung Choi),안영직(Young Jik Ahn) 한국원예학회 2007 원예과학기술지 Vol.25 No.2
The rate of bitter pit incidence and the mineral contents of fruit in ‘Gamhong’ apple fruit were investigated according to the controls of three different crop loads. The rate of bitter pit incidence tended to be higher and more frequent when the crop loads were getting less. As the crop loads became less, the fruit size became larger and contained the higher soluble solids and acid contents, but firmness got lower. As the crop load increased, however, the Ca concentration of the fruit was higher, and the concentrations of K and Mg were lower in the peel and the outer cortex. The K/Ca, the Mg/Ca, and the (K+Mg)/Ca of the peel and the outer cortex were higher as the crop load got less, but any consistent tendency was not observed in the inner cortex and the core.
DSI를 이용한 탈황 및 질소산화물 부분산화 반응에 관한 연구
서정학(Jeong-Hak Seo),조항대(Hang-Dae Jo),최원길(Won-Gil Choi),이형근(Hyung-Kun Lee),박영성(Yeong-Seong Park) 대전대학교 환경문제연구소 2014 환경문제연구소 논문집 Vol.18 No.-
The objective of this study is to investigate partial oxidation of NO with desulfurization in dry sorbent injection(DSI) process using dry sorbent and additives. The effect of the main operating variables directly related to desulfurization efficiency has been also tested. These variables are Ca/S ratio, temperature, inlet SO2 concentration and gas flow rate. The experiment was carried out for partial oxidation of NO with desulfurization in dry sorbent injection process using NaClO₂ and CaCl₂. The experimental results showed that partial oxidation of NO with desulfurization was increased in DSI process using little NaClO₂. It was also found that the injection of CaCl₂ was effective in increasing only SO₂ removal efficiency. Increase of SO₂ removal performance and promotion of partial oxidation of NO using the two additives at low temperature was confirmed.