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Formation of Iron Oxides in a Waste Pickling Liquor
이성룡,정유엽,안영민,윤정,황용길,Lee, S. R.,Jeong, Y. Y.,Ahn, Y. M.,Yoon, J.,Hwang, Y. G. The Korean Institute of Resources Recycling 1992 資源 리싸이클링 Vol.1 No.1
The $\alpha$-FeOOH powders were prepared by allkaline and acidic method on the small scale plant from the waste pickling liquor of iron. $\alpha$-FeOOH, $\alpha-Fe_2O_3$, $Fe_3O_4$ and ${\gamma}-Fe_2O_3$ powders were examined by TEM, SEM, TG-DTA, X-ray diffraction, VSM and chemical analysis. The results obtained from the experiment could be summerized as follows : the reaction time for the preparation of $\alpha$-FeOOH was observed to be smaller in the case of alkaline method and the products was acicular with the size of about $0.5\mu\textrm{m}$. The color of $\alpha-FeOOH and $\alpha-Fe_2O_3$was lovely yellow and red, respectively. The magnetic properties of $Fe_3O_4$ obtained by the reduction of $\alpha-Fe_2O_3$in the $H_2$ atomosphere at $370^{\circ}C$ for 1 hour showed 367(Oe) and 82.7(emu/g).
Hyperglycemia 환자에서의 TNA (Total Nutrient Admixture) 효과
윤정이,김진선,나현오,이명덕 한국병원약사회 1998 병원약사회지 Vol.15 No.1
This study investigate whether hyperglycemia patient's nutrition and glucose tolerance that were failed by IVH(Intra Venous Hyperalimentation) are improved by TNA(Total Nutrient Admixture). This research was conducted from March 1995 to October 1996 with 21 patients ; ① group A was treated with TNA administration after IVH(12 patients), ② group B was started with TNA(9 patients). As a result of observing glucose, insulin dose and nutritional condition retropectively before and after TNA administration, ① the glucose of group A - mean glucose was 289.4±82.71 before IVH administration and was 332.2±66.3 after IVH administration - decreased to 261.3±73.31 after a week, 237.9±45.40 after 2 weeks and 187.7±51.1(㎎/㎗) after 3 weeks ; ② the mean glucose of group B also decreased to 180.8±60.0 after TNA administration - before was 229.9±93.7(㎎/㎗) ; ③ insulin dose went down after TNA administration than before ; ④ the nitrogen balances of group A and B showed both positive conditions - the nitrogen balances of group A were 0.6±3.9 and 3.0±3.2 respectively when finished IVH and TNA administration, and group B was 1.7±4.6.