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李守求,徐成操 서울産業大學校 1987 논문집 Vol.26 No.1
In the organic wastewater containing phenol, it is very difficult to remove the phenol by the conventional activated sludge process because of its strong toxicity. This study was to treat the wastewater containing phenol by use of microorganisms. The phenol degrading bacteriaa were selected and developed from the industrial wastewater and sludges and various kinds of soils. And the phenol was able to degrade easily at its concentration up to 1000 ppm. In the batch reactor, the rate of phenol degradation was increased and to be constant after some lag time. And the period of removal of the phenol was lengthened with intial phenol concentration due to the lag time of microorganism adaptation.
Swim-Stress에 의한 血漿 Corticosterone 增加와 腦 Monoamine 性 神經系의 關聯性에 대한 硏究
徐聖祚,金炯健,全普權 고려대학교 의과대학 1988 고려대 의대 잡지 Vol.25 No.1
There are many evidences suggesting that central, alpha-adrenergic but not beta-adrenergic or dopaminergic, pathways inhibit ACTH-corticosteroid secretion caused by various stimuli in a variety of animal species. But noradrenenergic activation has been reported to cause no change, inhibition, or stimulation of ACTH secretion. O'Conner and Chipkin reported that the response to warm swim-stress might involve central opioid pathway, whereas the response to cold swim-stress appeared not to be opioid mediated. In this paper, the influence of clonidine on the increase of plasma corticosterone level occurred by swim-stress at 4℃ or 20℃ was studied in male mice. The results obtained were summarized as follows: 1. The increase of plasma corticosterone (CS) occurred by swim-stress at 4℃ was not affected by clonidine, 500㎍/㎏, but the increase occurred by swim-stress at 20℃ (20-SS) was significantly inhibited by clonidine. 2. The increase of plasma CS occurred by 20-SS was not affected by prazosin, phenoxybenzamine, yohimbine. propranolol and haloperidol. But the inhibitory effect of clonidine on 20-SS induced increase of plasma CS was significantly antagonized by yohimbine and phenoxybenzamine but not affected by prazosin, propranolol, and haloperidol. 3. The increase of plasma CS occurred by 20-SS was significantly inhibited by reserpine, alpha-methyl-p-tyrosine, and p-chlorophenylalanine but not affected by iproniazid. And the inhibitory effect of clonidine on the increase of plasma CS occurred by 20-SS was not affected by ipronizid, reserpine, alpha-methyl-p-tyrosine, and p-chlorophenylalanine. 4. Clonidine increased plasma corticosterone level, and the increasing effect of clonidine was moderately enhanced by reserpine and alpha-methyl-p-tyrosine but not affected by the above adrenoceptor blockades. The results suggest that the increase of plasma corticosterone level occurred by 20-SS may be mediated by hypothalamic noradrenergic and serotonergic neurons and inhibited by clonidine via presynaptic α₂-adrenoceptor.
2-Amyl Anthrapuinon의 自動酸化에 대하여
서성조 釜山工業大學校 1976 論文集 Vol.17 No.-
媒介體로는 Amyl Anthraquinine을, 溶媒로서는 Xylene과 n-octyl alcohol의 混合溶媒를, 촉매로서는 活性化 Ni를 使用하여 水添化의 工程을 거쳐 얻어지는 H2O2를 물로써 抽出, 그 濃度를 KMnO4용액으로 適定, 測定하였으며 또한 水添時間과 酸化壓力에 미치는 H2O2의 수율관계를 살폈다.