• 한국의상디자인학회지
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• 제8권2호
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• pp.73-83
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• 2006

This study aims to focus on clothing design's practical uses of the superior esthetic elements that can be found among the East's representations, in particular the characteristic Korean elements found in the latter part of the Chosun Era's women's Gauche and decorative personal ornamentation's moulded features. This has been the foundation for the creation of all eight pieces, and the conclusion is as follows: First of all, the Chosun Dynasty women's Gauche and ornamentation are in close relation to the general flow of society at the time. Gauche and personal ornamentation was not just a matter of beauty consciousness, but is permeated with then-mainstream society's culture, the results of an attempt to display a Korean appearance. Secondly, the desirability of the Chosun women's hair was expressed through Gauche, and through the exceptional brilliance of a diversity of embroidered color tones, braided as though creating Dare. Using this technique in clothing, a new image was created. Thirdly, the outstanding beauty of personal ornamentation's mouldings was used while creating new clothing compositions. The beauty felt through the Chosun women's personal ornamentation can also be felt through today's clothing. More than merely practical, this beauty also brings one closer to Korea and Korean past.

• Archives of Pharmacal Research
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• 제28권1호
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• pp.16-21
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• 2005

We wanted to elucidate the reason why the trityloxymethyl substituent in $\gamma$-trityloxymethyl-$\gamma$­butyrolactone takes a sterically unfavorable specific conformation, and so we synthesized 5-trityloxymethyldihydrofuran-3-one, 3-(trityloxymethyl)-4-butanolide and 2-trityloxymethyl- tetrahy­drofuran and we then analyzed their conformation by $^{1}H-NMR$ analysis.

• Bulletin of the Korean Chemical Society
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• 제14권2호
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• pp.200-206
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• 1993

Structures of two polymorphs of ${\alpha},{\alpha}$-trehalose octaacetate monohydrate, $C_{28}H_{38}O_{19}\;{\cdot}\;H_2O$, have been studied by X-ray diffraction method. ${\alpha},{\alpha}$-trehalose (${\alpha}$-D-glucopyranosyl ${\alpha}$-D-glucopyranoside) is a nonreducing disaccharide. The polymorph I belongs to the monoclinic $P2_1$, and has unit cell parameters of a=10.725(l), b=15.110(4), c=11.199(5) ${\AA}$, ${\beta}=108.16(2)^{\circ}$ and Z=2. The polymorph II is orthorhombic $P2_12_12_1$, with a=13.684(4), b=15.802(4), c=17.990(9) ${\AA}$ and Z=4. The final R and R$_w$ values for monoclinic polymorph I are 0.043 and 0.048 and for orthorhombic polymorph II are 0.116 and 0.118, respectively. Those R values of polymorph II are high because the large thermal motions of acetyl groups and the poor quality of the crystal. The molecular conformations in the two polymorphs are similar. Both D-glucopyranosyl rings have chair $^4C_1$ conformations and atoms of glycosidic chain ${\alpha}(1{\rightarrow}1)$ linkage are coplanar. The primary acetate groups of the pyranose residues assume both gauche-trans conformations. The molecules of two polymorphs have pseudo-C$_2$ symmetry at glycosidic O(1) atom. The bond lengths and angles are normal compared with those in other acetylated sugar compounds. The molecules in the monoclinic crystal are held by the hydrogen bonds with the water molecules and by van der Waals forces.