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채희영,Chae, Hui-Yeong 한국방위산업진흥회 1991 國防과 技術 Vol.- No.143
종말유도포탄과 동등한 효과를 올리기 위해서는 센서신관부의 탄약에 의한 사격은 통상 약 3배의 탄두수를 필요로 한다. 그러나 탄가가 약 4분의 1-5분의 1로 싸기 때문에 포탄수의 증가가 비경제적이라기 보다 비용대 효과면에서 오히려 유리하게 된다는 것이다. 수년 전에는 센서신관부의 탄약개발이 국제적으로 유행되어, 서독에서는 Diehi사와 Rheinmetall사가 참가하여 HABICHT 및 ZEPL 계획이라고 하는 2개의 프로젝트가 추진되었다. 그 후 이것은 하나로 통합되어 SMArt 155(155미리 포용 센서신관부 포탄의 약어)가 되었다
채희영 한국생태학회 1997 Journal of Ecology and Environment Vol.20 No.6
Feeding behavior of the Russet Sparrow Passer rutilans was studied in two different types of habitats, shelter belts and isolated forests, in south-eastern Hokkaido, Japan, during the breeding seasons of 1995 and 1996. Predominant foods were determined as Caterpillar, Coleoptera, Diptera, Ephemeropera, Odonate and some other insects. The composition of the nestiling foods were not the same by season, region, and year. Larger foods in size were used by birds in isolated forests more frequently than in shelter belts. Amount of food per feeding was significantly larger in isolated forests than in shelter belts. Although food supply were more abundant in isolated forests than in shelter belts, the feeding frequency did not significantly differ between these two habitats. The nest density was higher in isolated forests than in shelter belts. Results of this study indicate that when the feeding condition is poor, birds tend not show specific food selection behavior, the feeding range is therefore larger, and the feeding interval is longer. Contrarily, the birds show a specific food selection behavior when they are in good feeding condition, the feeding range is therefor smaller and the feeding interval decreases.
채희영,이병완,오승훈,안유란,정재훈,민용기,이명식,이문규,김광원 생화학분자생물학회 2005 Experimental and molecular medicine Vol.37 No.6
Hypoxic damage is one of the major causes of islet graft failure and VEGF is known to play a crucial role in revascularization. To address the effectiveness of a cationic lipid reagent as a VEGF gene carrier, and the beneficial effect of VEGF-transfected islets on glycemic control, we used effectene lipid reagent in a transfection experiment using mouse islets. Transfection efficiencies were highest for 4 µg/µL cDNA and 25 µL effectene and cell viabilities were also satisfactory under this condition, and the over-production of VEGF mRNA and protein were confirmed from conditioned cells. A minimal number of VEGF-transfected islets (100 IEQ/animal) were transplanted into streptozotocin (STZ)-induced di-abetic mice. Hyperglycemia was not controlled in the islet transplantation (IT)-alone group (0/8) (non-diabetic glucose mice number/total recipient mice number) or in the IT-pJDK control vector group (0/8). However, hyperglycemia was completely abrogated in the IT-pJDK-VEGF transduced group (8/8), and viable isles and increased VEGF-transfected grafts vascularization were observed in renal capsules. These studies support the usefulness of VEGF-transfected islet delivery using a cationic lipid reagent to achieve euglycemia using a minimal number of islets.
채희영 한국생태학회 1998 Journal of Ecology and Environment Vol.21 No.4
Body size of the Russet Sparrow (Passer rutilans) was investigated during the breeding seasons of 1994 to 1996, in south-eastern Hokkaido, Japan. Both male and female arrived slightly earlier in isolated forests than in shelter belts during the study. Wing lengths of males and females were significantly longer in isolated forests than those in shelter belts, but the other body size characteristics were not differ significantly. The results indicate habitat selection of the birds depended on their body constructions, in which wing length as an indicator, body size may be an important factor. Large-sized birds select the better quality habitat than birds of small size.