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의복 이미지 선호에 따른 20 대 여성 정장시장 세분화 및 색채 선호도
김영인,고애란,홍희숙 한국의류학회 2000 한국의류학회지 Vol.24 No.1
The purpose of this study were 1) to segment 20's female apparel market using consumers fashion image preference in formal wear, and 2) to identify the group differences in seasonal color(hue and tone) and color image(image associate with lightness and chroma) preference as well as in demographic variables. The subjects were 253 females in their late twenties living in Seoul, Korea. The data were collected using self-administered questionnaires and analyzed by factor analysis, Cluster analysis, x^2-test, oneway ANOVA, and Duncan test. The results of this study were as follows: 1) Four fashion image groups were identified through cluster analysis using consumers fashion image preference: Elegant image group, Sexy image group, Lively image group, and Romantic image group. 2) There were significant differences among fashion image groups in hue preference for spring clothes, tone preferences for spring and fall clothes. Color images are associated with lightness for spring and summer, and are associated with chroma for spring, summer, and fall. Group differences in demographic variables were found in socio-economic status and average expenditure for formal jacket.
Gadolium-benzoate 착물의 열역학적, 적외선분광학적 및 자기적 성질에 관한 연구
김영인,최성락 부산대학교 1987 자연과학논문집 Vol.44 No.-
The thermodynamic parameters of the gadolinium benzoate complex in aqueous solution have been determined in the ionic medium of 0.1M NaClO_(4) at 25℃. The larger stability constant of benzoate complex than those of other monodenate ligands seems to be arised from the conjugation effect of the aromatic ring in the ligand. Infrared and magnetic studies on the solid gadolinium benzoate were also done. The infrared spectral results indicate that the oxygen atoms of the ligand coordinate to the gadolinium ion.
Lanthanides-Benzoylformate 착물 형성에 관한 열역학적 연구
김영인,박선금,Young-Inn Kim,Sun-Geum Park 대한화학회 1993 대한화학회지 Vol.37 No.4
수용액 내에서 란탄(Ⅲ)-benzoylformate 착물 형성 반응의 열역학적 파라메타들(${\Delta}$G, ${\Delta}$H 및 ${\Delta}$S)을 pH 및 엔탈피 적정 방법을 사용하여 이온세기 $0.1M NaClO_4$, 25$^{\circ}C$ 조건하에서 구하였다. 란탄-benzoylformate 착물의 안정도 상수(1:1) 값으로부터 benzoylformate가 두자리 리간드로 작용함을 알 수 있었다. 열역학적 실험 결과는 카르복실기와 함께 케톤기 산소원자가 결합에 참여하여 킬레이트를형성하는 것으로 판단되었으며, 이는 benzoylformate 리간드 내에 존재하는 벤젠고리의 공액 효과에 의해 케톤기의 산소원자의 전하량이 증가된 결과로 해석되었다. 착물의 안정도는 엔트로피 효과 뿐 아니라, 금속-산소결합 형성에 따른 엔탈피 효과에도 기인하였다. The thermodynamic parameters (${\Delta}$G, ${\Delta}$H and ${\Delta}$S) of lanthanides(III)-benzoylformate complexes in aqueous solution have been determined in the ionic medium of 0.1M $NaClO_4$ at 25$^{\circ}C$, using pH and enthalpy titration method. The stability constants of the lanthanide(III)-benzoylformate complexes (1 : 1) agree well with the general relationships for the bidentate ligands (e.g., log${\beta}_1$ vs. p$K_a$). Thermodynamic evidences show that the oxygen atom in ketone group is coordinated along with the carboxylate group. It is ascribed to the increasing charge density on the oxygen atom in ketone group due to the conjugation effect in the benzoylformate ligand. Thermodynamic results also indicate that the complexes are stabilized by the enthalpy effect caused by the ionic interaction of metal-oxygen bond as well as the entropy effect.