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찹쌀가루 입자의 크기에 따른 두텁편의 품질에 관한 연구
김순조,우경자,최원석,Kim Soon-Jo,Woo Kyung-Ja,Choi Won-Seok 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.3
The manufacture and consumption of traditional Korean rice cake is being revived due to the introduction of various desserts and confectionaries in the food industry. In order to develop this traditional food of Korea and allow various types of rice cakes to enter the market, it is essential to standardize the cooking methodology. In particular, there has been little research on Dutubpyun, a traditional food famous for its good taste. In addition, the original cooking methodology varies between cookbooks. Therefore, in order to standardize the cooking methodology for Dutubpyun referring to various cookbooks, different types Dutubpyun were made by varying the grain fineness of the glutinous rice powder to 16, 20, 30 and 40 meshes, adding up water to 10%, up sugar to 10% and up soy sauce to 5%. Subsequently, a sensory evaluation, and a test on the moisture, degree of gelatinization and hardness during storage were measured to determine the optimal grain fineness of the powder. For the sensory evaluation, where the grain sizes of the glutinous rice powder were different, the 30 and 40 mesh samples received high scores for grain fineness, moisture and chewiness. The 40 mesh samples received high scores for softness, while the overall quality was the highest in the 30 mesh samples. The moisture content during storage was $38.0{\sim}40.6%$ for the samples on the day of cooking, while it was reduced to $33.3{\sim}35%$ after 3 days of storage. Regarding the degree of gelatinization during storage, the maltose content was $2.4{\sim}2.7 mg$ for the samples on the day of cooking. After 3 days, the maltose content was $2.3{\sim}2.8 mg$ but the maltose content was higher in the 40 mesh samples than in the other samples. Regarding the change in hardness during storage, the hardness marked high in the 20 mesh samples on the day of cooking (p<0.05), while it was high in the 16 mesh samples after 3 days of storage (p<0.001). The hardness tended to increase with increasing storage time. Regarding the surface structure of the glutinous rice powder and Dutubpyun, a difference in grain fineness was clearly seen in the 15x-magnifications photograph of the rice powder structure taken by SEM. At 60x and 180x magnifications of surface of Dutubpyun, the 16 mesh samples had a uniform air gap, and a lumpy configuration. Smaller air gaps were dispersed homogeneously and similar to a net in the 20 and 30 mesh samples. The 40 mesh samples showed to a net-likes structure with cracks. Overall, for the best conditions for cooking Dutubpyun, the grain fineness of the glutinous rice power needs to be 30 mesh.
김수상(Soo-Sang Kim),김현의(Hyun-Eui Kim),박순조(Soon-Jo Park),가석순(Suk-Sun Ka) 한국자동차공학회 2005 한국자동차공학회 Symposium Vol.- No.-
The performances of automobile cockpit module must be verified before production. Recently, CAE tools are widely used to evaluate the performances of cockpit module instead of physical tests to reduce cost and time. In this paper, several performance evaluation items(head impact, knee impact, PAS deploy, steering column natural frequency, sag, thermal deformation) with CAE tools are introduced with examples.
김수상(Soo-Sang Kim),김현의(Hyun-Eui Kim),박순조(Soon-Jo Park),가석순(Suk-Sun Ka) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
The performances of automobile cockpit module must be verified before production. Recently, CAE tools are widely used to evaluate the performances of cockpit module instead of physical tests to reduce cost and time. In this paper, several performance evaluation items(head impact, knee impact, PAB deploy, steering column natural frequency, sag, thermal deformation) with CAE tools are introduced with examples.
김수상(Soosang Park),박도현(Dohyeun Park),박순조(Soonjo Park) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
In this paper, a passenger air bag(PAB) folding method using finite element analysis was suggested. As PAB is<br/> more complex in shape than other airbags, generally it takes much time and efforts than others and requires highly<br/> skilled experience to get folded finite element model. Fully folded PAB finite element model was achieved by<br/> performing the continuous series of simulations. So, Anyone without skilled experience in air bag folding process<br/> can get folded PAB easily by following the process. It can save time in PAB folding process and decrease errors in<br/> PAB deployment simulation, and is expected to contribute to the development of advanced air bag which has to<br/> consider out of position (OOP) situation.