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P<sub>2</sub>O<sub>5</sub>-SnO<sub>2</sub>계 유리에서 용융분위기에 따른 구조와 물성에 미치는 영향
안용태,최병현,지미정,권용진,배현,황해진,An, Yong-Tae,Choi, Byung-Hyun,Ji, Mi-Jung,Kwon, Yong-Jin,Bae, Hyun,Hwang, Hae-Jin 한국세라믹학회 2012 한국세라믹학회지 Vol.49 No.2
In this study, tin phosphate glass system($SnO_2-(1-x)P_2O_5-xB_2O_3$) that occur during the melting of the metal oxide inhibition of the oxidation reaction, and to reduce oxides of high melting temperature in the following three methods were melting. The first is the general way in the atmosphere, and the second by injecting $N_2$ gas under a neutral atmosphere, and finally in the air were melted by the addition of a reducing agent Melt in the atmosphere when the oxidation of the metal oxide is inhibited by low temperatures were melting. In addition, the deposition of crystals within glassy or inhibit devitrification phenomenon is also improved over 80% transmittance. This phenomenon, when the melting of glass, many of $Sn^{4+}$ ions are reduced to the $Sn^{2+}$ was forming oxides SnO, because it acts as a modifier oxide.
Henoch-Scho¨nlein Nephritis 2例
安用泰,許圭烈,金明津,李健周,高行日 인제대학교 1982 仁濟醫學 Vol.3 No.3
We experienced two cases of Henoch-Sho‥nlein nephritis in adults, having heavy proteinuria and hypertension in Department of Medicine, In-je Medical College. Their general symptomes and signs of Henoch-Sho‥nlein syndrome were improved by Supportive care and prednisone during 8 months of follow-up though their morphologic features exhibited rather unfavorable progressive one.
SnO<sub>2</sub>-(1-x)P<sub>2</sub>O<sub>5</sub>-xB<sub>2</sub>O<sub>3</sub> 유리의 열적, 구조적 특성
안용태,최병현,지미정,장우석,배현,황해진,An, Yong-Tae,Choi, Byung-Hyun,Ji, Mi-Jung,Chang, Woo-Suk,Bae, Hyun,Hwang, Hae-Jin 한국세라믹학회 2010 한국세라믹학회지 Vol.47 No.2
$SnO_2-(1-x)P_2O_5-xB_2O_3$ glass system were prepared by melt-quenching technique in the compositional series containing 50, 55 and 60 mol% of $SnO_2$. Local structure of the glasses was investigated by Raman and FT-IR measurements. A large glass-forming region was found at the phosphate side of the ternary system with homogeneous glasses containing up to 5~25 mol% of $B_2O_3$. According as content of $B_2O_3$ increases, theraml expansion coefficient of glass decreased but transition temperature and softening temperature increased. Because these phenomenon changed local structure of glass. According as content of $B_2O_3$ increases, quantity of bridging oxygen increased. Also, according as content of $SnO_2$ increases, confirmed that quantity of non-bridging oxygen increases.
전사지를 이용 적층한 셀 구조 및 연료극 기능층 형성에 따른 출력 특성
안용태,지미정,구자빈,최진훈,황해진,최병현,An, Yong-Tae,Ji, Mi-Jung,Gu, Ja-Bin,Choi, Jin-Hoon,Hwang, Hae-Jin,Choi, Byung-Hyun 한국재료학회 2012 한국재료학회지 Vol.22 No.11
The properties of SOFC unit cells manufactured using the decalcomania method were investigated. SOFC unit cell manufacturing using the decalcomania method is a very simple process. In order to minimize the ohmic loss of flattened tube type anode supports of solid oxide fuel cells(SOFC), the cells were fabricated by producing an anode function layer, YSZ electrolyte, LSM electrode, etc., on the supports and laminating them. The influence of these materials on the power output characteristics was studied when laminating the components and laminating the anode function layer between the anode and the electrolyte to improve the output characteristics. Regarding the performance of the SOFC unit cell, the output was 246 $mW/cm^2$ at a temperature of $800^{\circ}C$ in the case of not laminating the anode function layer; however, this value was improved by a factor of two to 574 $mW/cm^2$ due to the decrease of the ohmic resistance and polarization resistance of the cell in the case of laminating the anode function layer. The outputs appeared to be as high as 574 and 246 $mW/cm^2$ at a temperature of $800^{\circ}C$ in the case of using decalcomania paper when laminating the electrolyte layer using the in dip-coating method; however, the reason for this is that interfacial adhesion was improved due to the dense structure, which leads to a thin thickness of the electrolyte layer.
播種期 및 栽植樣式이 大豆品種의 栽植密度에 미치는 影響
安容泰 서울여자대학교 1974 서울여자대학논문집 Vol.- No.3
For the study on the effect of planting density and method under different seeding time on the yield and yield component of soybean, three different varieties wee tested under eight planting density and method combined with two different seeding times. The result obtained in this study may be summarized as follows; 1) Grain yield was generally higher in early seeding than late seeding, particulary in Kwangkyo and all varieties tested in this study showed the highest grain yield in the case of 40 plants per square meter with one plant per one hill and one raw planting. Kwangkyo showed the highest grain yield at where in case of late seeding SRF-300 was the highest in grain yield. 2) The main stem dependability of grain yield was the highest in SRF-300 and was increased by the increase of planting density. The main stem dependability of grain yield was also higher in case of zigzag planting with one plant per hill than one raw planting when planting number per unit area is same. But there was no significant difference between seeding time in the main stem dependability of grain yield. 3) Pod number per plant showed increasing tendency by the decrease of planting density, early seeding and zigzag planting 4) There was significant varietal difference in 100grain weight, but showed a little difference of 100 grain weight as the changing seeding time and planting density and method. 5) The significant varietal difference of 1l weight was observed, and SRF-300 and chungpuk paik was some what larger in 1l weight in late seeding than early seeding. There was a little difference in 1l weight by the change of planting density and method.