열화학적 IS 공정에서 요오드화수소의 분해에 적용하기 위하여 화학증착법(CVD)으로 제조된 silica 막의 안정성을 HI-H_2O 기상 혼합물에서 평가하였다. Si 원천으로 tetraethoxysilane을 사용하여 서로 다른 CVD 온도로 기공크기가 100 nm인 α-alumina를 처리하였다. CVD온도는 700^℃, 650^℃, 600^℃이었다. 600^℃에서 수행한 단일 성분의 투과 실험에서 측정한 막의 H_2/N_2 선택도는 CVD 온도 700^℃의 M1 막은 43.2, 650^℃의 M2 막은 12.6, 600^℃의 M3 막은 8.7을 나타내었다. HI-H_2O 기상 혼합물에서 안정성 실험은 450^℃에서 수행하였는데, CVD 온도 650^℃에서 처리된 막이 다른 온도에서 처리된 막보다 더 안정성이 더 좋은 결과를 얻었다.
This study was carried to examine the changes in kernel-greenness under different storage conditions in green-kerneled rices, Saedongchalbyeo (Korea) and Hexi41 (China). Rough and brown-rice grains were stored just after harvest under different storage conditions; low (15℃) and room temperature storage, and light and dark storage at 21℃, 24℃, and 27℃. Kernel- greenness was measured by using colorimeter. When the grains were stored in brown rice at room temperature under light condition after harvest, kernel greenness was maintained up to 4 months and gradually faded away until 8 months. However, kernel greenness was maintained up to 10 months storage after harvest at room temperature under dark condition, and up to more than 11 months at low temperature under dark. Rough-rice grains kept the greenness up to more than 11 months regardless of the light and temperature. The higher the storage temperature, the less kernel-greenness when stored in brown rice. Light was the critical factor for degradation of kernel-greenness. For long-term storage of green-kerneled rices, rough-rice storage, or brown-rice storage under low-temperature and dark condition seemed to be desirable for the maintenance of kernel-greenness.
This study was carried out to investigate the cultural conditions for optimizing kernel greermess in order to obtain basicinformation for breeding and cultivation of green-kerneled rice varieties. Thirty-days-old seedlings of two green-kerneled varieties,