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SnS_2 : Co 單結晶의 光學的 特性에 관한 硏究 Co Single Crystals
李絃順 圓光大學校 基礎自然科學硏究所 1991 基礎科學硏究誌 Vol.10 No.1
The SnS_2 : Co single crystals was grown by the Chemical Vapour Transport Method using iodine as a transporting agent The structure of SnS_2 : Co single crystal was hexagonal and the measured lattice constant a= 3.638 A, C= 11.832 A. The Optical energy gap was measured to be 2.060 eV for SnS_2 : Co single crystal and 2.265 eV for SnS_2 single crystal at room temperature. The photoconductivity peak appeared at 575nm in the photoconductivity spectrum of SnS_2 : Co single crystals. I observed two PL peak at 549㎚, 881㎚ in the photoluminescence spectra of SnS_2 : Co single crystals
Chemical Composition and Anti-Stress Effects of Yeast Hydrolysate
이현순,정은영,서형주 한국식품영양과학회 2009 Journal of medicinal food Vol.12 No.6
In the present study, the anti-stress effects of yeast hydrolysate (YH) were investigated. The YH consisted of crude carbohydrate (23.6%) and crude protein (68.3%) with low contents of crude ash (3.1%) and crude fat (0.3%). Also, acidic amino acids (glutamic acid+aspartic acid) were present in large quantities (14.2 and 5.0mol%, respectively). Pronase digestion had little effect on the affinity of the YH on 5-hydroxytryptamine (serotonin) and norepinephrine transporters, whereas NaIO4 oxidation of the hydrolysate decreased the affinity by about 10% at 1,000μg/mL, indicating that the periodate-labile carbohydrate moiety played a leading role in the affinity effects of the carbohydrate in YH. As a result of brain mapping after the administration of the YH for 3 days in human subjects, a symmetrical distribution of theta and alpha waves in the central and parietal lobes was observed. This brain mapping pattern of theta and alpha wave distribution appears in a psychologically stable state. The YH groups showed improvements in Beck Depression Inventory and Beck Anxiety Inventory scores after YH administration for 2 weeks. Treatment also seemed to have a more significant (P<.05) impact on the somatic manifestations of anxiety as indexed by the Beck Anxiety Inventory scores. Food materials used as a source of YH have been found to be associated with increases in alertness and adaptation to stress.
李賢順 成均館大學校 1972 論文集 Vol.17 No.-
The waste water from two factories, a ham processing company (A) and a slaughter house (B) was treated by activated sludge which was treated by activated sludge which was made synthetically. After treatment, the water was obviously improved in color, turbidity and odor. After treatment, BOD removal was 85% and MLSS. BOD load was below 0.9 for the water from the (B) factory. ER, SS and VSS was reduced by the activated sludge.