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김순래(Soon Rae Kim),김성석(Sung Seok Kim),최규열(Gyu Yeol Choi),정의호(Eui Ho Jeong) 한국물환경학회 1999 한국물환경학회지 Vol.15 No.2
To establish the efficient removal scheme of anion surfactants from car washing wastewater, the optimal conditions of aeration rate, duration of aeration and temperature were estimated. Anion surfactants in car washing wastewater was removed about 60% by the simple aeration(1.6ℓair/min for 7ℓ of wastewater), and the higher aeration rate was required at low temperature to get the similar removal rate. Considering the in situ temperature(10∼20℃), the aeration must be kept for 5∼6 hrs. Combining the biological method to the conventional method, the high removal rate more than 80% of anion surfactants could be achieved.
강원도 막국수와 메밀분의 성분학적 특성 및 시판제품 중의 메밀함량 감별법
최용순(Yong-Soon Choi),심태흠(Tea-Heum Shim),김준래(Jun-Rae Kim),김성완(Sung-Wan Kim),정의호(Eui-Ho Cheong),이상영(Sang-Young Lee) 한국식품영양과학회 1999 한국식품영양과학회지 Vol.28 No.5
본 연구는 시중에서 판매되는 메밀 제품 중 밀가루의 혼합여부를 판별하기 위한 가능성을 검토하기 위하여 시도되었다. 메밀은 통합분, 내층분, 중층분, 외층분으로 나누어 제분하였다. 모든 메밀분중 회분, 단백질, 지방함량은 외층분=통합분>중층분>내층분 순으로 높았다. 밀가루와 메밀외층분은 회분과 단백질함량에서 비슷한 수준을 보였다. 칼륨과 마그네슘 함량은 모든 메밀분이 밀가루에 비하여 높은 수준을 보였다. Quercetin 유도체인 플라보노이드 함량은 외층분>통합분=중층분>내층분 순으로 높았으나, 밀가루에서는 검출되지 않았다. 통합분과 밀가루의 혼합분의 비율과 마그네슘 또는 회분량과의 사이에 신뢰할만한 상관관계가 관찰되어, 이를 기준으로 시판제품 중 메밀함량을 평가하였다. 그러나 이 성분은 메밀의 제분정도 또는 원료에 따라 크게 변동될 수 있어 밀가루의 혼합을 확인할 수 있는 지표로 사용하기는 어려울 것으로 사료된다. This study was tried to evaluate possibilities for discriminating the mixture degree of wheat flour from buckwheat products. Buckwheat was milled into four grades of powder, i.e. whole grain flour(WGF), inner layer flour(ILF), middle layer flour(MLF) and outer layer flour(OLF)), and these powders were mixed with wheat flour(WF) to make mixed samples. Ash, protein and fat contents of the buckwheat flours were high in the order of OLF=WGF>MLF>ILF. On the other hand, WF showed a similar content to OLF in ash and protein, and to ILF in fats. Potassium and magnesium contents were higher in all the buckwheat powder than in the wheat flour. Flavonoid contents were higher in order of OLF>WGF=MLF>ILF, but it was not in wheat flour. Although the reliable correlation between mix ratio and components, i.e. mag-nesium or ash analyzed were found, it did not seem to reflect sufficiently the expected variations of contents of original material components. Also, compositions of commercial buckwheat products were analyzed to evaluate the mixed ratio of buckwheat flour and wheat flour. The results suggest that the components analyzed in this study as putative marker were not good in determining whether or how much buckwheat products contained wheat flour.
김순래,김성석,박상균,정의호 ( Soon Rae Kim,Sung Seok Kim,Sang Gyun Park,Eui Ho Cheong ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.3
Methylene blue method has been mainly used for the analysis of anion surfactants which are an influential pollutant in rivers. But this method have various defects, because its analysis procedure needs long pretreating time. In this study, methylene blue method of anion surfactants was compared with the Co-PADAP method using a bit solvent to simplify the procedures. It was concluded that there is no significant difference between the two methods, so Co-PADAP method must be adapted to the Korean Standard Methods.
강원도에서 음용되는 지하수의 수질 특성에 관한 조사 연구
김성석,이건호,정재연,김남성,김순래,김종철,최규열,정의호 ( Sung Seok Kim,Geon Ho Yi,Jae Yun Jeong,Nam Sung Kim,Soon Rae Kim,Chong Cheol Kim,Kyu Yol Choi,Eui Ho Jeong ) 한국물환경학회 1995 한국물환경학회지 Vol.11 No.3
A survey to determine the characteristics of groundwater qualities in Kangwon-Do, which was divided 4 regions, was conducted from January to December in 1994. The results showed that the pesticides and chlorinated ethenes were not detected in the potable groundwater. But ca. 40% of the groundwaters were not satisfied the Korea Drinking Water Quality Standards because of the microbiological aspects, nitrates and Zinc, etc. The concentrations of pH, Zinc and consumption of KMnO₄ were not varied much, but the variation of the concentrations for chlorides and nitrates in each region were relatively high. Also the seasonal changes for the hardness and sulfates were within 10%, while the nitrates and chlorides were ranged from 15.5% to 18.0% in Chuncheon.