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吳炳周 木浦海洋大學校 1995 論文集 Vol.3 No.1
This paper presents the use of an available energy. The coast evaluation of energy is intensively related to the time and the response speed of a dynamic factor must be considered to get correct results. The energy consumption from conventional resources must be decreased in order to keep the environment of humanbeings clean.
吳炳周,卓泰文 한국잠사학회 1985 한국잠사곤충학회지 Vol.27 No.2
The equilibrium sorptions of C.I. Reactive Blue 19 and C.I. Reactive Blue 19 and C.I. Acid Blue 138 on Silk fibroin were investigated in the range of 50°C, 70°C, 90°C and to the pH range from 2.0 to 10.5. The results obtained are summarized as follows: 1) The amount of sorption of reactive dye was increased with the decrease of pH in dyeing solution and temperature. The amount of fixation showed the maximum value to pH 8.5 and 70°C. 2) In acidic region, the sorption behavior of acid dye was similar to that of reactive dye, and Langmuir adsorption constant was increased with the decrease of pH. 3) Langmuir constant of both dyes was decreased with the increase of temperature, while standard affinity was increased. 4) The reaction of both dyes was exothermic and the values of ΔS° were positive. 5) It was found that the sorption behavior of dyes against Silk fibroin could be described as Langmuir adsorption and Nernst distribution in lower pH region.
管路末端에 設置한 오리피스에 依한 氣體의 流量測定法에 關한 硏究
吳炳周 木浦海洋大學校 1997 論文集 Vol.5 No.1
This paper describes the mass flow characteristics of free discharge through an orifice. Experiments are carried out to clarify the flow difference between the conventional pipe orifice and the pipe end orifice presented. The results are plotted by introducing λwhich is the ratio of real flow rate to the flow determined by using the ASME regulated value of the pipe orifice into the pipe end orifice case. The experimental results show that the conventional regulated relations of the pipe orifice can be applied correspondingly to the case of this pipe end orifice in subsonic flow regime. The effect of the down-stream pipe length on the flow measurement error, and the effect of an obstacle placed at the free discharge region of the jet on the error are also examined and discussed.
吳炳周 木浦海洋大學校 1994 論文集 Vol.2 No.1
For the chemical tanker, cargo residues of substances with a vapour pressure greater than 5×10³Pa at 20℃ may be removed from a cargo tank by ventilation. But according to the prevention of marine pollution(MARPOL 73/78), the ones with a vapour pressure less than 5×10³Pa at 20℃ must not be removed by ventilation. Recently stripping systems are developed, and on some chemical tankers the stripping residues quantity is decreased less than one litre by using thin pipe. If chemical substances with the little vapour pressure are removed by ventilation, this procedure is very useful for the operation and the prevention for sea pollution. Hence the posibility of the removal by ventilation was examined by the model tank test and on board test. The experimental results show that the residues in the tank well is removed by ventilation using the suction pipe or stripping pipe. And the liquid adhering to the wall can be also removed by the ventilation.