• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.652-655
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• 2010

관상학이란 사람의 인상을 관찰하여서 사람의 운명을 판단하고, 그 얻어진 결론을 가지고 길흉의 방법을 구하는 학문이라고 할 수 있다. 사람은 누구나 다른 사람을 볼 때 그 사람의 아름다움이나 추함보다는 인상이 눈에 먼저 들어오는 것은 당연하다고 할 수 있다. 그 얼굴에 인상이 뚜렷하게 나타나는 곳 중 제일은 인당 일 것이다. 따라서 본 논문에서는 외모만으로 성격을 판별하거나 몸매 혹은 얼굴생김에서 직관적 인지를 얻어내는 관상학을 통해 인당의 크기에 따른 성격을 영상 처리 기술로 구현하였다. 즉, 인당은 눈썹과 눈썹사이의 가운데 부분을 말하며, 미간이라고도 부른다. 이와 같은 인당의 크기에 따라 성격의 주요 5대 특징과의 상관성 분석을 통해 눈썹에 따른 성격의 차이를 분석하는 연구를 수행하였다.

• KSBB Journal
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• v.22 no.5
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• pp.345-350
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• 2007

Phosphosugars are found in all living organisms and are commercially valuable compounds with possible applications in the development of a wide range of specialty chemicals and medicines. In carbohydrate metabolism, fructose 6-phosphate (F6P) is an essential intermediate formed by phosphorylation of 6' position of fructose in glycolysis, gluconeogenesis, pentose phosphate pathway and Calvin cycle. In glycolysis, F6P lies within the glycolysis metabolic pathway and is produced by isomerisation of glucose 6-phosphate. For large-scale production, F6P could be produced from starch using many enzymes such as pullulanase, starch phosphorylase, isomerase and mutase. In enzymatic reactions carried out at high temperatures, the solubility of starch is increased and microbial contamination is minimized. Thus, thermophile-derived enzymes are preferred over mesophile-derived enzymes for industrial applications using starch. Recently, we reported the production of glucose 1-phosphate (G1P) from starch by Thermus caldophilus GK24 enzymes. Here we report the production of F6P from starch through three steps; from starch to glucose 1-phosphate (glucan phosphorylase, GP), then glucose 6-phosphate (phosphoglucomutase, GM) and then F6P (phosphoglucoisomerase, GI). Using 200 L of 1.2% soluble starch solution in potassium phosphate buffer, 1,253 g of G1P were produced. Then, 30% yields of F6P were attained at the optimum reaction conditions of GM : G1 (1 : 2.3), 63.5$^{\circ}C$, and pH 6.85. The optimum conditions were found by response surface methodology and the theoretical values were confirmed by the experiments. The optimum starch concentrations were 20 g/L under the given conditions.