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- 저자 : Yoo-Hyek Jun (검색결과 2 건)
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1990년대 이후 경남 교외지역의 신축한옥 현황 및 유형과 건축적 특성
손준혁(Son, June-Hyek),김준(Kim, Jun),유재우(Yoo, Jae-Woo) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.6
This study is focused on the 80 case studies of ‘Hanok’ newly built after 1990’s and analyzes their architectural trend and its typological characteristics. It also has classified ‘Hanok’ according to applied space formation, materials as well as building construction planning, in order to study on the trend of diverse ‘Hanok’ built recently. Consequently, this study has drawn the following conclusions. First, for the tradition oriented ‘Hanok’, there are three cases mostly built by traditional carpenter, and their average gross area is 86㎡ and average number of resident is 2.7. Secondly, transformational ‘Hanok’, which is combined with traditional exterior as well as modern convenient interior, has thirty four cases. And they are the most universal types of ‘Hanok’ among other cases and their average gross area is 93㎡ and the number of resident is 3.3. Thirdly, there are 8 cases of applied ‘Hanok’ with average gross area of 67㎡ as well as average number of resident of 2.3. Finally, 27 cases are simplified ‘Hanok’ and their average gross area is 76㎡ and average number of resident is 2.3.
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희토류 금속이온 (Ln(III))과 Acetamide 사이의 상호작용에 대한 연구
이상원,유정아,윤창주,전유혁,최영상,Sang-Won Lee,Jeonga Yu,Chang-Ju Yoon,Yoo-Hyek Jun,Young-Sang Choi 대한화학회 1992 대한화학회지 Vol.36 No.2
아세트아미드(AA)의 CO기와 희토류 금속이온(Ln(II))을 포함하는 몇 가지 lanthanide shift reagent(LSR) 사이의 상호작용을 이해하기 위하여 AA의 $2{\nu}_{C=0}$ + amide III 조합띠를 $15^{\circ}$ ${\sim} 45^{\circ}C$에서 조사하였다. 묽은 $CCl_4$ 용액속에서 하나의 AA가 사용된 LSR에 배위되어 1 : 1 AA-LSR 복합체를 이루며, Ln(Ⅲ)이온에 대한 AA의 배위 위치는 카르보닐의 산소임을 알았다. 온도 및 농도에 따른 이 조합띠의 변화로부터 Ln(III)${\cdot}$O=C 결합에 대한 여러가지 열역학적 함수들을 구했다. Eu$(dpm)_3$, Yb$(dpm)_3$ 및 Pr$(dpm)_3$에 대한 AA의 결합의 세기를 나타내는 ${\Delta}H^{\circ}$는 각각 -39.1, -28.4 및 -25.5kJ/mol이다. 이들 값을 비교해보면 AA 분자가 배위될 때 중심금속이온의 ionic potential 효과보다는 이미 배위되어 있는 커다란 dpm 분자에 의한 입체장애효과가 더 큼을 알 수 있다. The $2{\nu}_{C=0}$ + amide III combination band spectrum of acetamide (AA) was obtained in very dilute solutions of AA+lanthanide shift reagents (LSR) in carbon tetrachloride over the range of $15^{\circ}$ to $45^{\circ}C$. It was found that only 1 : 1 AA-LSR complex is formed by the interaction between carbonyl oxygen of AA and central metal ion(Ln(Ⅲ)) in LSR. The thermodynamic parameters for Ln(III)${\cdot}$O=C bond were determined by computer analysis of concentration and temperature dependent spectra. ${\Delta}H^{\circ}$ for the coordination of AA to Eu$(dpm)_3$, Yb$(dpm)_3$, and Pr$(dpm)_3$ have been found to be -39.1, -28.4, and -25.5 kJ/mol, respectively. It has shown that this type of ion-dipole interaction is more than twice stronger compared to the dipole-dipole interaction in the amide linkage, and largely depending on the steric hindrence effect by the bulky dpm groups around central metal ion (Ln(III)) rather than the ionic potential effect of central metal ion itself.
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