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Si-sealant를 이용하여 제조한 금속수소화물 전극의 특성
최전,박충년 한국수소및신에너지학회 1993 한국수소 및 신에너지학회논문집 Vol.4 No.2
The (LM)Ni<sub>4.5</sub>Co<sub>0.1</sub>Mn<sub>0.2</sub>Al<sub>0.2</sub> hydrogen storage alloy powders were conducted 25wt% electroless copper plating in an acidic bath. For the preparation of a hydride electrodes, the copper coated alloy powder was mixed with Si-sealant(organosilicon) and compacted with 6t/cm² at room temperature. The electrode characteristics were examined through electrochemical measurements in a half cell. As a sealant contents increased, the initial discharge capacity of si-sealant bounded electrode was lower and the activation rate in high current density was slower. For extended cycles, however, the electrodes with the Si-sealant were superior in a high rate discharge and useful range of temperature over the sealant-free electrode. In addition, the cycle life increased with increasing the amount of Si-sealant added. It can be suggested from the results that the Si-sealant as a binder could be applied to the preparation of the metal hydride electrode.
崔田道,朱軫淳 고려대학교 의과대학 1973 고려대 의대 잡지 Vol.10 No.3
The experiment was carried out on 8 healthy female college-student 19-22 years old and they were fed three times a day with a test meals for 7 days of each experimental period. The test meals used were pulses protein diet, fishes protein diet and meat protein diet, and they supplied for each subject per day are as follows : a) The pulses protein diet; protein 87.69 (pulses source : 45.8g) fat: 41.1g (pulses source : 22.99) carbohydrate : 411.9g calcium : 605.0㎎ (pulses source: 399.9㎎) phosphorus: 1,083.3㎎ (pulses source: 497.5㎎), and 2,367 ㎉ b) The fishes protein diet; protein: 88.1g (fishes source: 34.89) fat : 17.0g (fishes source: 3.29) carbohydrate : 446.29 calcium : 442.4㎎ (fishes source: 114.1㎎) Phosphorus : 1,369.3㎎ (fishes source : 399.0㎎), and 2,310 ㎉ c) The meat protein diet: protein : 87.60 (meat source: 40.2g) fat: 25.99 (meat source: 6.39) carbohydrate : 431.79 calcium: 360.6㎎ (meat source: 12.0㎎) phosphorus: 798.7㎎ (meat source : 41.6㎎), and 2,359 ㎉ The absorption rates of protein, fat, carbohydrate. calcium and phosphorus in each diet, and 17-ketosteroid excrcted in urine were determined. The results obtained are summarized as follows: 1. The protein absorption rate of the pulses protein diet was lower than that of the fishes and meat protein diet. 2. The nitrogen balances in the pulses (+1.4±0.2g), fishes (+2.1±0.39) and meat (+2.4±0.39) protein diet were positive balances respectively. 3. The fat absorption rate of the fishes protein diet (60.9±2.6%) was significantly lower than that of the pulses and meat protein diet. 4. The carbohydrate absorption rates were 94.8±3.5∼96.2±0.4% in each diet, and so it seems to be absorbed almost entirely but cellulose. 5. The calory utillization rates in each diet were .6±0.4∼91.0±0.4%. 6. The calcium absorption rates of pulses protein diet (30.1±1.8%) were significantly lower than those of the fishes (52.5±2.5%) and meat protein diet (49.5±2.0%). 7. The phosphorus absorption rates of the pulses protein diet (45.9±2.3%) were significantly lower than those of the fishes (78.7±2.8%) and meat protein diet (81.3±2.2%). 8. The 17-ketosteroid contents excreted in urine of pulses protein diet (4.81±0.23㎎) were higher than those of the fishes (3.76±0.18㎎) and meat protein diet (3.30±0.12㎎), hut it showed no remarkable change of contents for each subject with the same diet. In the view of the above results; it can be seen that the absorption rates of each nutrient were good in the meat protein diet, but the absorption rates of protein, calcium and phosphorus in the pulses protein diet and those of fat in the fishes protein diet were not so good, respectively.