• Bulletin of the Korean Chemical Society
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• 제34권10호
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• pp.3133-3136
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• 2013

• Bulletin of the Korean Chemical Society
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• 제24권9호
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• pp.1239-1240
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• 2003

• Bulletin of the Korean Chemical Society
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• 제31권10호
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• pp.3010-3012
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• 2010

• 대한화학회지
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• 제57권3호
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• pp.411-415
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• 2013

• 한국막학회:학술대회논문집
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• 한국막학회 2000년도 추계 총회 및 국제학술발표회
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• pp.98-101
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• 2000

No Abstract, See Full Text

• 대한공업교육학회지
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• 제40권2호
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• pp.72-91
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• 2015

이 연구는 특성화고 화공계열의 교육과정에 대한 실태를 조사 분석하고 화공계열의 정체성 확립을 통한 활성화를 위하여 교육과정의 개선방안을 모색하고자 한다. 연구 방법은 화공계열 학교(과) 대상의 실태 조사를 실시하고, 교육과정 및 학과명, 그리고 취득 자격증의 상호간에 적합성을 내용분석 하였다. 연구의 결론은 다음과 같다. 첫째, 화공계열이 화공의 정체성을 유지하며 산업 현장의 변화를 수용하기 위해서는 화공에서 파생된 응용화학공업, 나노화학공업, 환경화공, 에너지환경화공, 융합신소재화공, 세라믹화공, 생명화공, 식품생명화공 등 응용학문의 학과를 개설하고, 학과별 교육목표에 따른 교육과정을 편성 운영해야 한다. 둘째, 화공계열의 기준학과별로 관련 자격증을 다양화하고, 취업 가능성 제고에 따른 학교수준의 교육과정 개선을 위하여 산업수요와 직업의 변화를 고려한 인력 양성 목표와 인재상을 명확하게 수립해야 한다. 셋째, 화공계열 교육과정의 질적 제고를 위해서는 중등 직업교육이 '알기만 하는 교육(지식)'에서 '할 줄 아는 교육(능력)'으로 변화하는 패러다임에 발맞추어 '화공 산업체 - 화공 직업교육 - 화공 자격'이 일체화된 교육과정이 필요하다.

• Bulletin of the Korean Chemical Society
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• 제35권1호
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• pp.277-279
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• 2014

• Bulletin of the Korean Chemical Society
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• 제35권4호
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• pp.1073-1076
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• 2014

In attempt to lead compounds exhibiting both insecticidal and fungicidal activities, a series of O-benzyl oximeether derivatives were designed and synthesized by introducing ${\beta}$-methoxyacrylate pharmacophore into a scaffold. The insecticidal activity against Aphis fabae and the fungicidal activity against Erysiphe graminis were screened. The title compounds exhibited remarkable insecticidal and fungicidal activities. The most potent compound 6d was identified. Its insecticidal $LC_{50}$ against A. fabae is 6.4 mg/L, which is lower than that of chlorfenapyr (19.4 mg/L) and even close to the level of imidacloprid (4.8 mg/L). Its fungicidal $EC_{90}$ in preventive and curative treatment against E. graminis are 2.2 and 4.8 mg/L, respectively, which are lower than azoxystrobin (7.0 and 5.9 mg/L). These results indicate that compound 6d can be considered as a lead for further developing new O-benzyl oxime-ether typed candidates with both fungicidal and insecticidal activities.

• Bulletin of the Korean Chemical Society
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• 제33권12호
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• pp.4145-4149
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• 2012

A novel and simple method of luminescence enhancement effect for the determination of trace amounts of bile acid was proposed. The procedure was based on the luminescence intensity of the balofloxacin-europium(III) complex that could be strongly enhanced by bile acid in the presence of sodium dodecyl benzene sulfonate (SDBS). Under the optimum conditions, the enhanced luminescence intensity of the system exhibited a good linear relationship with the bile acid concentration in the range $5.0{\times}10^{-9}-7.0{\times}10^{-7}\;mol\;L^{-1}$ with a detection limit of $1.3{\times}10^{-9}\;mol\;L^{-1}$ ($3{\sigma}$). The relative standard deviation (RSD) was 1.7% (n = 11) for $5.0{\times}10^{-8}\;mol\;L^{-1}$ bile acid. The applicability of the method to the determination of bile acid was demonstrated by investigating the effect of potential interferences and by analyzing human serum and urine samples. The possible enhancement mechanism of luminescence intensity in balofloxacin-europium(III)-bile acid-SDBS system was also discussed briefly.

• Food Science and Biotechnology
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• 제18권3호
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• pp.661-666
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• 2009

The heat tolerance and the inactivation kinetics of peroxidase (POD) and polyphenol oxidase (PPO) in pineapples (Ananas comosus) were studied in the temperature range $45-95^{\circ}C$. The kinetic parameters, such as deactivation rate constant (k), activation energy ($E_a$), and decimal reduction rate (D) of the thermal inactivation process, were determined. POD in pineapples showed biphasic inactivation behavior at temperatures range $45-75^{\circ}C$ but was monophasic at $85-95^{\circ}C$. This indicate that POD has 2 isozymes, namely heat labile and heat resistant, with $E_a$ of 68.79 and 93.23 kJ/mol, respectively. On the other hand, the heat denaturation of pineapple PPO could be described as simple monophasic first-order behavior with $E_a$ of 80.15 kJ/mol. Thus, the results of this study is useful in blanching technology where it shows a shortened time with higher temperature can be applied. The determination of the heat tolerance and inactivation POD and PPO, at different temperature range as done in the present work, was very important to improve the blanching process. This also will help to optimize the pineapple canning process which is one of the most important food industries in many tropical regions.