• 대한화학회지
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• 제58권2호
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• pp.169-178
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• 2014

A new series of metal complexes of V(IV), Pd(II), Pt(IV), Ce(IV) and U(VI) with 3-[(3-chlorophenyl)-hydrazono]-pentane-2,4-dione (Cphpd) were synthesized and characterized by elemental analysis, molar conductivity, magnetic moment measurements, UV-vis, FT-IR and $^1H$ NMR as well as TG-DTG techniques. The data indicated that the Cphpd acts as a bidentate ligand through the hydrazono nitrogen and one keto oxygen. The kinetic parameters have been evaluated by using Coats Redfern (CR) and Horowitz-Metzeger (HM) methods. The thermodynamic data reflected the thermal stability for all complexes. The calculated bond length and the bond stretching force constant, F(U=O), values for $UO_2$ bond are $0.775{\AA}$ and $286.95Nm^{-1}$. The bond lengths, bond angles, dipole moment and the lowest energy model structure of the complexes have been determined with DFT calculations. The antimicrobial activity of the synthesized ligand and its complexes were screened.

• Asian-Australasian Journal of Animal Sciences
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• 제22권5호
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• pp.643-650
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• 2009

Two metabolism trials were conducted with 24 wether lambs to investigate the effects of feeding crab meal and other protein supplements on N utilization, digestibility and Ca and P balance in sheep. The lambs (avg. BW, 25 kg) were randomly allotted to eight diets in each of two trials. The supplements were: i) none, negative control (NC); ii) soybean meal (SBM), control; iii) supplement based on industrial byproducts of both plant and animal origin (IPA); iv) experimental supplement based on byproducts of animal origin (ESA); v) hydrolyzed supplement No 4. (HESA); vi) commercial supplement based on animal protein (CS), $Pro-Lak^{(R)}$ vii) crab meal (CM); and viii) urea (U). The supplements supplied 33% of the total dietary N (CP, 9.8%; DM basis). Lambs fed the NC diet had lower (p<0.05) DM and OM digestibility. Lower (p<0.05) apparent absorption of N was recorded for the lambs fed the HESA and NC diets. Sheep fed CM had lower Ca absorption compared to SBM. Highest (p<0.05) P absorption was observed for lambs fed CS and CM and lowest for U and NC diets. Sheep fed CM had higher (p<0.05) total VFA concentration (65.7 ${\mu}mol/ml$), compared to those fed ESA, CS, and NC diets (47.3, 49.8, and 49.5 ${\mu}mol/ml$, respectively). Highest (p<0.05) ruminal $NH_3$ N (29.6 mg/dl) was observed in lambs fed the U diet, while those fed the NC diet had the lowest (p<0.05) average value (7.66 mg/dl). Lambs fed the U diet had the highest (p<0.05) blood urea N (10.67 mg/dl). The present study showed that N utilization of diets supplemented with experimental supplements based on feather meal and blood meal; commercial supplement based on animal protein, $Prolak^{(R)}$ supplement based on plant protein and blood meal; and crab meal are comparable with that of soybean meal.

• 의료법학
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• 제14권1호
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• pp.147-208
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• 2013

In der vorliegenden Arbeit geht es um die vergleichende Betrachtung von deutschen Urteilen OLG Munchen, Urt. v. 21. 4. 2011 - Az. 1 U 2363/10; BGH, Urt. v. 22. 5. 2012 - VI ZR 157/11) und einer Reihe von koreanischen Urteilen im Bereich des Arzthaftungsrechts. Sie behandelt die Kausalitat von Tatbestand und Rechtswidrigkeitszusammenhang in der normativen Haftungszurechung. In Korea gilt die sog. Adaquanztheorie noch entscheidend als bewertendes Zurechnungskriterium - sogar manchmal als umgangssprachliches Homonym im Sinne der Verh$\ddot{a}$ltnism$\ddot{a}{\ss}$igkeit angewendet -, die dogmengeschichtlich von Deutschland $\ddot{o}$bernommen wurde. Doch wie aus den deutschen Urteilen ersichtlich, ist sie dort schon $\ddot{u}$berwunden. Die Ergebnisse der betrffenden koreanischen Urteile sind zwar nicht unbillig, deren Urteilsbegrundungen aber theoretisch bzw. praktisch nicht $\ddot{u}$berzeugend. Nach allgemeiner Ansicht kommt es vielmehr auf den Schutzzweck an, der auch bei der Anwendung des ${\S}$ 393 KBGB gelten kann. Schlie${\ss}$lich wurde die $\ddot{U}$bertragung des praxisgerechten L$\ddot{o}$sungsansatzes in deutschen Urteilen auf rechtsvergleichende Weise dazu beitragen, die Zivilrechtspraxis in der koreanischen Justiz nachvollziehbarer machen.

• 통합자연과학논문집
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• 제10권4호
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• pp.225-231
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• 2017

Cryptand resins were synthesized by mixing 1-aza-18-crown-6 macrocyclic ligand with styrene divinylbenzene copolymer having 1%, 2%, 5%, and 10% crosslink by a substitution reaction. These synthetic resins were confirmed by chlorine content, elementary analysis, SEM, surface area, and IR-spectrum. As the results of the effects of pH, crosslink of synthetic resin, and dielectric constant of a solvent on uranium ion adsorption for resin adsorbent, the uranium ion showed high adsorption at pH 3 or over. Adsorption selectivity for the resin in methanol solvent was the order of uranium ($UO_2{^{2+}}$) > calcium ($Ca^{2+}$) > neodymium ($Nd^{3+}$) ion, adsorbability of the uranium ion was the crosslink in order of 1%, 2%, 5%, and 10% and it was increased with the lower dielectric constant.

• 대한화학회지
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• 제9권1호
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• pp.45-48
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• 1965

Stability constant, composition of copper (II)-oxamidoxime complex were determined by spectrophotometric method. The ratio of copper (II) and oxamidoxime in the above complex was 1 : 1, and its stability constant was calculated to be $2.4{\times}10^{22}$. The complex solution gave constant absorbancy between the pH range of 4.5 to 6 at 600 $m{\mu}$ in which Beer's law applicable in the concentration range of 0.3 to 2.0 ppm studied in this work. It was noted that some metals such as Fe(III), Ni(II), Co(II), U(VI) interfere copper determination by this method.

• 생약학회지
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• 제17권1호
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• pp.73-77
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• 1986

Anthraquinones, physcion (I), mp $204{\sim}205^{\circ}$ and emodin (II), mp $254{\sim}255^{\circ}$, and $emodin-8-O-{\beta}-{_D}-glucoside$ (IV), mp $191{\sim}192^{\circ}$ together with ${\beta}-sitosterol$ glucoside (III), mp $280{\sim}282^{\circ}$ were isolated from the roots of Polygonum ellipticum Migo and P. sachalinense Fr. Schm. (Polygonaccae). Stilbene derivatives, 3,5,4'-trihydroxystibene (V), mp $258{\sim}260^{\circ}$ and $3,5,4'-trihydroxystilbene-3-O-{\beta}-{_D}-glucoside$ (VI), mp $142{\sim}144^{\circ}$ were also isolated.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1998년도 춘계학술발표회논문집(2)
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• pp.453-457
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• 1998

The sorption of UO$_2$$^{2+}$showed ionic strength independece for goethite and dependence for kaolinite. In the presence of carbonate, the sorption decreased in the weakly alkaline pH range becase of the formation of aqueous U(VI)-carbonate complexes. The sorption of UO$_2$$^{2+}$onto goethite and kaolinite under various experimental conditions was successfully interpreted using a surface complexation modeling, named triple layer model (TLM). The best fit to the experimental data was obtained by the FITEQL program, and then evaluated with available spectroscopic data. The results showed the versatility of surface complexation modeling over empirical one to predict UO$_2$$^{2+}$ sorption behavior.avior.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2010년도 제39회 하계학술대회 초록집
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• pp.317-317
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• 2010

ZnO나노와이어는 높은 투과도, 화학 및 열적 안정성을 가지며, 유기태양전지에 적용하였을 때 Active Layer의 표면적 증가, 전자의 수집 및 전달에 용이한 장점가지고 있어 하이브리드 유기 태양전지에 적용되고 있다. ZnO나노와이어와 P3HT/PCBM을 사용한 하이브리드 유기태양전지는 Active Layer의 열처리 온도를 변화시켜 ITO/AZO/ZnO wire/PCBM:P3HT/PEDOT:PSS/Ag구조로 제작되었다. ZnO나노와이어는 AZO를 Seed로 사용하고 Znc nitrate hydrate와 hexamethylenetetramine을 혼합하여 수열합성법으로 성장 후, P3HT:PCBM, PEDOT:PSS을 Spin Coating법으로 형성하였다. UV-vis와 Solar simulator를 통하여 Active Layer의 열처리 온도에 따른 태양전지의 특성을 분석하였다.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2018년도 춘계학술대회 논문집
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• pp.57-57
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• 2018

Zinc-oxide (ZnO), II-VI semiconductor with a wide and direct band gap (Eg: 3.2~3.4 eV), is one of the most potential candidates to substitute for ITO due to its excellent chemical, thermal stability, specific electrical and optoelectronic property. However, the electrical resistivity of un-doped ZnO is not low enough for the practical applications. Therefore, a number of doped ZnO films have been extensively studied for improving the electrical conductivities. In this study, Ti-doped ZnO films were successfully prepared by atomic layer deposition (ALD) techniques. ALD technique was adopted to careful control of Ti doping concentration in ZnO films and to show its feasible application for 3D nanostructured TCO layers. Here, the structural, optical and electrical properties of the Ti-doped ZnO depending on the Ti doping concentration were systematically presented. Also, we presented 3D nanostructured Ti-doped ZnO layer by combining ALD and nanotemplate processes.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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• pp.602-602
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• 2013

산화아연(ZnO)은 직접 천이 와이드 밴드갭(3.37 eV)과 큰 excitation binding energy (60 meV)를 갖는 II-VI 반도체로 광촉매, light emitting diodes (LED), dye-sensitized solar cell 등의 여러 가지 분야에서 각광받고 있는 물질이다. ZnO는 열역학적으로 안정한 polar terminated (001)면과 nonpolar low-symmetry (100)면을 갖으며 (100)면이 (001)면보다 더 안정하기 때문에 (100)방향의 일차원구조가 쉽게 합성된다. 이러한 일차원 구조는 빛의 산란을 유도하여 더 많은 빛의 흡수를 야기 시킬 뿐만 아니라 일차원 구조를 따라 효율적인 전하 전달을 가능하게 한다. 본 연구에서는 일차원 구조의 장점을 살리면서 더 넓은 표면적을 갖는 hierarchical ZnO nanowire 구조를 수열합성법과 스퍼터링증착법을 이용하여 합성하였다. Hierarchical ZnO nanowire는 SEM, TEM을 이용하여 구조를 관찰하였고 UV-visable spectroscopy를 이용하여 일차원 구조의 ZnO nanowire와의 absorbance, transmittace 차이를 확인하였다.