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高有貞(고유정, Ko, Yu-Jeong) 일본어문학회 2009 일본어문학 Vol.46 No.-
「春はあけぼの」の章段には、春は雲、夏は雨、秋は風、冬は雪など、天候による描写がバランスよく描かれている。『枕草子』には「雲は」「風は」 「雪は」などの章段は存在するものの、「雨は」章段は存在しない。また、 「降るものは」章段に夏の雨はとりあげられていない。本稿では、清少納言がなぜ、夏の夜の雨を「雨など降るもをかし」と婉曲に描写するのか、その理由を明らかにする。 「春はあけぼの」の章段において、雨を夏の景物としてとりあげられているものの、『枕草子』には、夏の夜の雨を「をかし」と表現する章段はないのである。清少納言が、「雨など降るもをかし」と婉曲に描写するのには、雨の性質が季節․時間とは関係なく自由に書ける景物であるだけに、自分自身の意見とは違う他の読者を意識したところにあると思われる。
고유나,김정현,홍영준,강윤찬 한양대학교 세라믹연구소 2012 Journal of Ceramic Processing Research Vol.13 No.3
Li3V2(PO4)3 powders were prepared by spray pyrolysis under various conditions of gas atmosphere, preparation temperature,and carrier gas flow rate. The precursor powders had a submicrometre size and spherical shape irrespective of their preparation conditions. The morphologies and crystal structures of subsequently post-treated powders varied with the preparation conditions: 1300 οC with a flow rate of 20 L minute-1 under 10% H2/N2 reducing gas produced spherical, pure Li3V2(PO4)3 particles. Li3V2(PO4)3 powder prepared under the optimum conditions showed a maximum initial discharge capacity of 144 mAhg-1.
수크로스 함유 분무용액으로부터 분무열분해 공정에 의한 미세 Ba-Nd-Ti-O 분말 합성
고유나,정대수,구혜영,강윤찬,Ko, You-Na,Jung, Dae-Soo,Koo, Hye-Young,Kang, Yun-Chan 한국재료학회 2010 한국재료학회지 Vol.20 No.3
Nano-sized $BaNd_2Ti_5O_{14}$ powders were prepared by the spray pyrolysis process. Sucrose used as the organic additive enabled the formation of nano-sized $BaNd_2Ti_5O_{14}$ powders. The powders prepared from the spray solution without sucrose had a spherical shape, dense structure and micron size before and after calcination. However, the precursor powders prepared from the spray solution with sucrose had a large size, and hollow and porous morphology. The precursor powders had an amorphous crystal structure because of the short residence time of the powders inside the hot wall reactor. The complete decomposition of sucrose did not occur inside the hot wall reactor. Therefore, the precursor powders obtained from the spray solution with sucrose of 0.5M had a carbon content of 39.2wt.%. The powders obtained from the spray solution with sucrose of 0.5M had a slightly aggregated structure of nano-sized primary powders of $BaNd_2Ti_5O_{14}$ crystalline phase after calcination at $1000^{\circ}C$. The calcined powders turned into nano-sized $BaNd_2Ti_5O_{14}$ powders after milling. The mean size of the $BaNd_2Ti_5O_{14}$ powders was 125 nm.