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이종원,이미경,이형옥,이성계,도재호,김만욱 ( Jong Won Lee,Mi Kyung Lee,Hyung Ok Lee,Seong Kye Lee,Jae Ho Do Man Wook Kim ) 한국응용생명화학회 1997 Applied Biological Chemistry (Appl Biol Chem) Vol.40 No.5
The purpose of this study was to investigate the differences in proximate composition, free sugars, amino acids, fatty acids and Hunter color values between fresh and odorless garlic. The contents of crude fiber, crude fat and ash in odorless garlic were similar to those in fresh garlic. Sugars and crude protein decreased during manufacture of odorless garlic. Among the free sugars, sucrose, maltose and fructose decreased in odorless garlic, while the content of glucose increased. Total amino acid content decreased by about 30% in odorless garlic. Among the amino acids decreased arginine, isoleucine etc. The contents of linoleic acid, palmitic acid and oleic acid were higher than those of other fatty acids in fresh garlic and odorless garlic, but laruric acid was in little quantity. There were no significant differences in the Hunter L and b value between the fresh and odorless garlic, but value for greeness(-a) was lower in odorless garlic.
이종원,이상욱,조성룡,김선태,박인용,Lee, Jong-Won,Lee, Sang-Uk,Jo, Seong-Ryong,Kim, Seon-Tae,Park, In-Yong 한국재료학회 2002 한국재료학회지 Vol.12 No.1
In this study, the nanosized ZnS thin films that can be used for fabrication of blue light-emitting diodes, electro-optic modulators, and n-window layers of solar cells were grown by the solution growth technique (SGT), and their surface morphology and film thickness and grain size dependence on the growth conditions were examined. Based on these results, the quantum size effects of ZnS were systematically investigated. Governing factors related to the growth condition were the concentration of precursor solution, growth temperature, concentration of aq. ammonia, and growth duration. X-ray diffraction patterns showed that the ZnS thin film obtained in this study had the cubic structure ($\beta$-ZnS). With decreasing growth temperature and decreasing concentration of precursor solution, the surface morphology of film was found to be improved. Also, the film thickness depends largely on the ammonia concentration. In particular, this is the first time that the surface morphology dependence of ZnS film grown by SGT on the ammonia concentration is reported. The energy band gaps of samples were determined from the optical transmittance values, and were shown to vary from 3.69 eV to 3.91 eV. These values were substantially higher than 3.65 eV of bulk ZnS. It was also shown that the quantum size effect of SGT grown ZnS is larger than that of the ZnS films grown by most other growth techniques.
차량진동에 대한 안정거울장치의 성능향상을 위한 강건설계 및 공차할당
이종원,정호섭,손석만,Lee, Chong-Won,Jeong, Ho-Seop,Sohn, Seok-Man 대한기계학회 1997 大韓機械學會論文集A Vol.21 No.5
In this paper, the robust design and tolerancing of the stabilized mirror is performed to increase its stabilization performance under vehicle vibration. Based on the sensitivity analysis, the seven important control factors are first identified, and then the optimal as well as robust values in the sense of Taguchi method are obtained. Finally, the tolerances associated with each design variables are determined based on a successive sensitivity analysis of the simulated system response so that the deviation in the response from the target value meets the specification requirements. The proposed tolerancing method features that it is a robust but conservative design method and that the computational effort is much less than the Monte Carlo simulation method.